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authorNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
committerNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
commite0c6872cf40896c7be36b11dcc744620f10adf1d (patch)
tree60335e10d2f4354b0674ec22d7b53f0f8abee672 /macros/latex/contrib/SIunits
Initial commit
Diffstat (limited to 'macros/latex/contrib/SIunits')
-rw-r--r--macros/latex/contrib/SIunits/README36
-rw-r--r--macros/latex/contrib/SIunits/SIunits.dtx3179
-rw-r--r--macros/latex/contrib/SIunits/SIunits.ins74
-rw-r--r--macros/latex/contrib/SIunits/SIunits.pdfbin0 -> 328621 bytes
4 files changed, 3289 insertions, 0 deletions
diff --git a/macros/latex/contrib/SIunits/README b/macros/latex/contrib/SIunits/README
new file mode 100644
index 0000000000..2f2249a22a
--- /dev/null
+++ b/macros/latex/contrib/SIunits/README
@@ -0,0 +1,36 @@
+The SIunits package - Consistent application of SI units
+
+----------------------------------------------------------------
+Maintained by Joseph A. Wright
+E-mail: joseph.wright@morningstar2.co.uk
+Originally developed by Marcel Heldoorn
+ (c) 2000-2002 Marcel Heldoorn
+ (c) 2007 Joseph Wright
+Released under the LaTeX Project Public license v1.3 or later
+----------------------------------------------------------------
+
+The Systeme International d'Unites (SI), the modern form of the
+metric system, is the most widely used system of units and measures
+around the world. But despite this there is widespread misuse of the
+system with incorrect names and symbols used as a matter a course -
+even by well educated and trained people who should know better. For
+example how often do we see: mHz, Mhz or mhz written when referring
+to computer clock rates? The correct form is actually MHz. Note
+the capitalisation does matter.
+
+Hence, a clear system for the use of units is needed, satisfying the
+next principles:
+1) the system should consist of measuring units based on unvariable
+ quantities in nature;
+2) all units other than the base units should be derived from these
+ base units; and
+3) multiples and submultiples of the units should be decimal.
+
+The name Systeme International d'Unites (International System of
+Units) with the international abbreviation SI was adopted by the
+Conference Generale des Poids et Mesures (CGPM) in 1960. It is a
+coherent system based on seven base units (CGPM 1960 and 1971).
+
+The SIunits package can be used to standardise the use of units in
+your writings. Most macros are easily adaptable to personal
+preferences. However, you are welcome to suggest any improvements.
diff --git a/macros/latex/contrib/SIunits/SIunits.dtx b/macros/latex/contrib/SIunits/SIunits.dtx
new file mode 100644
index 0000000000..5b1afac0b0
--- /dev/null
+++ b/macros/latex/contrib/SIunits/SIunits.dtx
@@ -0,0 +1,3179 @@
+% \iffalse meta-comment
+% Note: This package is now maintained by Joseph Wright
+% (joseph.wright@morningstar2.co.uk)
+% Copyright 2007 Joseph Wright
+% ----------------------------------------------------------------------
+%<*ID>
+%%% ====================================================================
+%%% @LaTeX-package-file{
+%%% author = "Heldoorn M.",
+%%% version = "$Revision: 1.33 $",
+%%% date = "$Date: 2002/08/01 11:20:00 $",
+%%% filename = "SIunits.dtx",
+%%% address = "Marcel Heldoorn
+%%% Kennedylaan 24
+%%% NL-3844 BC HARDERWIJK
+%%% The Netherlands",
+%%% telephone = "+31 341 427983",
+%%% FAX = "+31 71 5276782",
+%%% email = "SIunits@webschool.nl",
+%%% codetable = "ISO/ASCII",
+%%% keywords = "SI, units, International System of Units,
+%%% physical unit",
+%%% supported = "yes",
+%%% abstract = "This package defines commands for using
+%%% standard SI units in all your texts. The
+%%% package provides different options for the
+%%% uniform typesetting and spacing of the units.",
+%%% copyright = "Copyright (C) 2001 Marcel Heldoorn.
+%%%
+%%% This program may be distributed and/or modified under the
+%%% conditions of the LaTeX Project Public License, either version 1.3
+%%% of this license or (at your option) any later version.
+%%% The latest version of this license is in
+%%% http://www.latex-project.org/lppl.txt
+%%% and version 1.3 or later is part of all distributions of LaTeX
+%%% version 2003/12/01 or later.
+%%% }
+%%% ====================================================================
+%</ID>
+% \fi
+% \CheckSum{1807}
+% \iffalse
+%<+package|binary>\def\SIunits@RCS$#1: #2 #3${#2}
+%<+package|binary>\def\filename{SIunits.dtx}%Source File Name
+%<+package|binary>\xdef\fileversion{\SIunits@RCS$Revision: 1.36 $}%Revision generated by CS-RCS
+%<+package|binary>\xdef\filedate{\SIunits@RCS$Date: 2007/12/02 12:00:00 $}%Date generated by CS-RCS
+%<+package|binary>\let\docversion=\fileversion
+%<+package|binary>\let\docdate=\filedate
+%<+package|binary>\NeedsTeXFormat{LaTeX2e}[1997/12/01]
+%<+package>\ProvidesPackage{SIunits}
+%<+binary>\ProvidesPackage{binary}
+%<+package|binary> [\filedate\space v\fileversion\space
+%<+package> Support for the International System of units (MH)]
+%<+binary> Support for binary prefixes and units (MH)]
+%<+binary>\RequirePackageWithOptions{SIunits}
+%<+package|binary> \def\packagemessage{}
+% \fi
+% \CharacterTable
+% {Upper-case \A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T\U\V\W\X\Y\Z
+% Lower-case \a\b\c\d\e\f\g\h\i\j\k\l\m\n\o\p\q\r\s\t\u\v\w\x\y\z
+% Digits \0\1\2\3\4\5\6\7\8\9
+% Exclamation \! Double quote \" Hash (number) \#
+% Dollar \$ Percent \% Ampersand \&
+% Acute accent \' Left paren \( Right paren \)
+% Asterisk \* Plus \+ Comma \,
+% Minus \- Point \. Solidus \/
+% Colon \: Semicolon \; Less than \<
+% Equals \= Greater than \> Question mark \?
+% Commercial at \@ Left bracket \[ Backslash \\
+% Right bracket \] Circumflex \^ Underscore \_
+% Grave accent \` Left brace \{ Vertical bar \|
+% Right brace \} Tilde \~}
+% \iffalse
+%<*config>
+%% SIunits configuration file: SIunits.cfg
+%%
+%% You can uncomment one or more of the lines below to set default options.
+%%
+%%\ExecuteOptions{binary} % Load binary.sty (binary units and prefixes)
+%%
+%% Spacing options (multiplying units):
+%%
+%%\ExecuteOptions{cdot} % \cdot
+%%\ExecuteOptions{thickspace} % thick space \;
+%%\ExecuteOptions{mediumspace} % medium space \:
+%%\ExecuteOptions{thinspace} % thin space \,
+%%
+%% Spacing options (between quantity and unit):
+%%
+%%\ExecuteOptions{thickqspace} % thick space \;
+%%\ExecuteOptions{mediumqspace} % medium space \:
+%%\ExecuteOptions{thinqspace} % thin space \,
+%%
+%% Compatibility options:
+%%
+%%\ExecuteOptions{noams} % When you don't have the AMS font, eurm10, use this option.
+%%
+%%\ExecuteOptions{amssymb} % prevent amssymb package from defining \square
+%%\ExecuteOptions{squaren} % define \squaren for use with amssymb package
+%%
+%%\ExecuteOptions{pstricks}% prevent pstricks package from defining \gray
+%%\ExecuteOptions{Gray} % define \Gray for use with pstricks package
+%%
+%%\ExecuteOptions{italian} % define \unita to prevent interference with babel package.
+%%
+%% Misc options:
+%%
+%%\ExecuteOptions{textstyle}% Typeset units in font of context.
+%</config>
+%<*batchfile>
+%
+%
+% (1) run SIunits.ins through TeX to get the package
+% (you get: SIunits.sty, binary.sty, SIunits.cfg and SIunits.cfg)
+%
+% (2) run SIunits.drv through TeX (LaTeX) to get the documentation
+% (you get: SIunits.dvi)
+%
+% [or use DOCSTRIP and extract SIunits.sty from SIunits.dtx
+% using option `package']
+%
+%
+\begin{filecontents}{SIunits.ins}
+%% Note: This package is now maintained by Joseph Wright
+%% (joseph.wright@morningstar2.co.uk)
+%% Copyright 2007 Joseph Wright
+%% ---------------------------------------------------------------------
+%%
+%% SIunits.ins will generate the fast loadable files SIunits.sty and
+%% binary.sty, the documentation driver SIunits.drv and the configura-
+%% tion file SIunits.cfg from the package file SIunits.dtx when run
+%% through LaTeX or TeX.
+%%
+%% Copyright (C) 2001 Marcel Heldoorn
+%%
+%% This program may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%% http://www.latex-project.org/lppl.txt
+%% and version 1.3 or later is part of all distributions of LaTeX
+%% version 2003/12/01 or later.
+%%
+%% NOTE:
+%% The LPPL about .ins files:
+%% - Files with extension `.ins' (installation files): these files may
+%% not be modified at all because they contain the legal notices
+%% that are placed in the generated files.
+%%
+%% --------------- start of docstrip commands ------------------
+%%
+\def\batchfile{SIunits.ins}
+\input docstrip.tex
+\keepsilent
+\preamble
+
+Copyright (c) 1998-2002 Marcel Heldoorn <m.heldoorn@webschool.nl>.
+
+This program may be distributed and/or modified under the conditions of the LaTeX Project
+Public License, either version 1.3 of this license or (at your option) any later version.
+The latest version of this license is in http://www.latex-project.org/lppl.txt and
+version 1.3a or later is part of all distributions of LaTeX version 2003/12/01 or later.
+
+For error reports in case of UNCHANGED versions see the readme.txt file.
+
+Please do not request updates from me directly. Distribution is done through the
+Comprehensive TeX Archive Network (CTAN).
+
+\endpreamble
+\postamble
+
+ Source: $Id: SIunits.dtx,v 1.33 2002/08/01 11:20:00 root Exp root $
+\endpostamble
+\generate{\file{SIunits.sty}{\from{SIunits.dtx}{package}}}
+\generate{\file{binary.sty}{\from{SIunits.dtx}{binary}}}
+\nopreamble
+\generate{\file{SIunits.cfg}{\from{SIunits.dtx}{config}}}
+\generate{\file{SIunits.drv}{\from{SIunits.dtx}{driver}}}
+ \Msg{************************************************************}
+ \Msg{}
+ \Msg{ To finish the installation you have to move the file}
+ \Msg{ `SIunits.sty' (and optionally the file `SIunits.cfg')}
+ \Msg{ into a directory searched by LaTeX.}
+ \Msg{}
+ \Msg{ To type-set the documentation, run the file `SIunits.drv'}
+ \Msg{ through LaTeX.}
+ \Msg{ Process SIunits.idx file by:}
+ \Msg{ \space\space\space\space makeindex -s gind.ist SIunits}
+ \Msg{ Process SIunits.glo file by:}
+ \Msg{ \space\space\space\space makeindex -s gglo.ist -o SIunits.gls SIunits.glo}
+ \Msg{}
+ \Msg{************************************************************}
+\endbatchfile
+\end{filecontents}
+%</batchfile>
+%<*driver>
+\immediate\write18{makeindex -s gind.ist -o \jobname.ind \jobname.idx}
+\immediate\write18{makeindex -s gglo.ist -o \jobname.gls \jobname.glo}
+\documentclass[a4paper]{ltxdoc}
+\IfFileExists{hyperref.sty} {\usepackage{hyperref}}{\relax}
+ \IfFileExists{SIunits.sty}
+ {\usepackage[derivedinbase,derived,binary]{SIunits}}
+ {\GenericWarning{SIunits.DTX}
+ {Package file SIunits.STY not found!^^J
+ Generate SIunits.STY by (La)TeXing SIunits.INS,
+ process SIunits.DTX again.^^J}\stop}
+%%
+\GetFileInfo{SIunits.dtx}
+\CodelineIndex%
+\PageIndex% Comment out to get code line numbers in index.
+\CodelineNumbered%
+\EnableCrossrefs%
+%%\DisableCrossrefs% UnComment if the index is ready
+\OnlyDescription% Comment out to print Section "The Magic Code" as well.
+%%
+\begin{document}
+\DocInput{SIunits.dtx}
+ {\newpage\PrintIndex}
+ {\newpage\PrintChanges}
+\end{document}
+%</driver>
+% \fi
+% \setlength\hfuzz{1000pt}
+% \setlength\overfullrule{1000pt}
+%
+% \newcommand{\pkgname}[1]{\texttt{#1}}
+% \newcommand{\opt}[1]{\textsf{#1}}
+%
+% \newenvironment{labeling}[1]
+% {\list{}{\settowidth{\labelwidth}{\textbf{#1}}
+% \leftmargin\labelwidth\advance\leftmargin\labelsep
+% \def\makelabel##1{\textbf{##1}\hfil}}}{\endlist}
+%
+% \newcommand{\Fe}{\textit{For example:\ }}
+% \newcommand{\fe}{\textit{for example:\ }}
+% \newcommand{\dimn}[1]{\ensuremath{\mathsf{#1}}}
+%
+% \def\digitsep{\,}
+% \def\onedigit#1{#1}
+% \def\twodigit#1#2{#1#2}
+% \def\threedigit#1#2#3{#1#2#3}
+% \def\fourdigit#1#2#3#4{#1\digitsep#2#3#4}
+% \def\fivedigit#1#2#3#4#5{#1#2\digitsep#3#4#5}
+% \def\sixdigit#1#2#3#4#5#6{#1#2#3\digitsep#4#5#6}
+% \def\sevendigit#1#2#3#4#5#6#7{#1\digitsep#2#3#4\digitsep#5#6#7}
+% \def\eightdigit#1#2#3#4#5#6#7#8{#1#2\digitsep#3#4#5\digitsep#6#7#8}
+% \def\ninedigit#1#2#3#4#5#6#7#8#9{#1#2#3\digitsep#4#5#6\digitsep#7#8#9}
+% \def\ifourdigit#1#2#3#4{#1#2#3\digitsep#4}
+% \def\ifivedigit#1#2#3#4#5{#1#2#3\digitsep#4#5}
+% \def\isixdigit#1#2#3#4#5#6{#1#2#3\digitsep#4#5#6}
+% \def\isevendigit#1#2#3#4#5#6#7{#1#2#3\digitsep#4#5#6\digitsep#7}
+% \def\ieightdigit#1#2#3#4#5#6#7#8{#1#2#3\digitsep#4#5#6\digitsep#7#8}
+% \def\ininedigit#1#2#3#4#5#6#7#8#9{#1#2#3\digitsep#4#5#6\digitsep#7#8#9}
+%
+% \def\getlength#1{\ifx#1\end \let\next=\relax
+% \else\advance\count0 by 1 \let\next=\getlength\fi \next}
+%
+% \def\length#1{\count0=0 \getlength#1\end}
+%
+% \def\digitspart#1{\length{#1}\ifcase\count0\or
+% \let\next=\onedigit \or
+% \let\next=\twodigit \or
+% \let\next=\threedigit \or
+% \let\next=\ifourdigit \or
+% \let\next=\ifivedigit \or
+% \let\next=\isixdigit \or
+% \let\next=\isevendigit \or
+% \let\next=\ieightdigit \or
+% \let\next=\ininedigit \or
+% \else \let\next=\relax \fi \next#1}
+%
+% \def\integerpart#1{{\length{#1}\ifcase\count0\or
+% \let\next=\onedigit \or
+% \let\next=\twodigit \or
+% \let\next=\threedigit \or
+% \let\next=\fourdigit \or
+% \let\next=\fivedigit \or
+% \let\next=\sixdigit \or
+% \let\next=\sevendigit \or
+% \let\next=\eightdigit \or
+% \let\next=\ninedigit \or
+% \else \let\next=\relax \fi \next#1}}
+%
+% \def\split#1.#2\end{\ensuremath{\integerpart{#1}.\digitspart{#2}}}
+%
+% \newcommand{\nmfmt}[1]{{\split #1\end}}
+% \newcommand{\intfmt}[1]{\ensuremath{\integerpart{#1}}}
+%
+% \def\scientificnotation#1e#2\end{\ensuremath{{#1}\times 10^{#2}}}
+% \newcommand{\sci}[1]{{\scientificnotation #1\end}}
+% \newcommand{\joenit}[1]{\begingroup\mathcode`\.="8000 \ensuremath{#1}\endgroup}
+%
+% \changes{v0.05 Final Release}{1999/03/30}{Release v0.05 under LaTeX Project Public License}
+% \changes{v0.05 Beta 2}{1999/03/30}{First package release under LaTeX Project Public License}
+% \changes{v0.06 Beta 2}{1998/04/07}{Problem with amssymb package solved thanks to Timothy C. Burt}
+% \changes{v0.03 Final Release}{1999/01/15}{Release v0.03}
+% \changes{v0.03 Beta 6}{1998/12/15}{Stable version, before releasing v0.03}
+% \changes{v0.03 Beta 4}{1998/12/10}{Stable version, before adding configuration file parameters}
+% \changes{v0.02 Beta 5}{1998/09/23}{Generated for Timothy C. Burt (\texttt{tcburt@comp.uark.edu})}
+% \changes{v0.02 Beta 4}{1998/09/15}{Typos corrected (thanks to Rafael Rodriguez Pappalardo)}
+% \changes{v0.02 Beta 3}{1998/09/11}{Code documentation checked and corrected}
+% \changes{v0.01}{1998/09/07}{Small documentation errors (thanks to Juergen von Haegen)}
+% \changes{v0.00 Beta 4}{1998/08/14}{Inconsistencies removed/changed}
+% \changes{v0.00 Beta 3}{1998/08/11}{Options implemented; better documentation}
+% \changes{v0.00 Beta 2}{1998/07/30}{Various small improvements}
+% \changes{v0.00 Beta 1}{1998/07/24}{Initial working version}
+% \changes{v1.00}{2000/03/21}{released as SIunits v1.00}
+% \changes{v1.13}{2000/08/29}{implementation of \textit{SI-brochure Supplement 2000}}
+% \changes{v1.15}{2001/02/01}{E-mail address change: \texttt{marcel.heldoorn@webschool.nl}}
+% \changes{v1.30}{2002/08/01}{E-mail address change: \texttt{SIunits@webschool.nl}}
+% \changes{v1.32}{2002/08/01}{\texttt{hyperref} package used in documentation driver}
+%
+% \DoNotIndex{\,,\:,\;}
+% \DoNotIndex{\@defGrayfalse,\@defGraytrue,\@defsquarenfalse,\@defsquarentrue}
+% \DoNotIndex{\@elt,\@for}
+% \DoNotIndex{\@ifundefined,\@nameuse,\@ne,\@optionNoAMSfalse,\@optionNoAMStrue }
+% \DoNotIndex{\@optionNoAMSfalse\@optionNoAMStrue\@optionbinaryfalse\@optionbinarytrue}
+% \DoNotIndex{\@qsk,\@qskwidth,\@redefGrayfalse,\@redefGraytrue}
+% \DoNotIndex{\@redefsquarefalse,\@redefsquaretrue,\@scientificfalse,\@scientifictrue}
+% \DoNotIndex{\@stpelt,\@text,\@text@,\@textstylefalse,\@textstyletrue}
+% \DoNotIndex{\AA,\addtocounter,\def,\edef,\gdef}
+% \DoNotIndex{\amperemetresecond,\amperepermetre,\amperepermetrenp,\amperepersquaremetre,\amperepersquaremetrenp}
+% \DoNotIndex{\arad}
+% \DoNotIndex{\AtBeginDocument,\AtEndOfPackage}
+% \DoNotIndex{\begingroup}
+% \DoNotIndex{\candelapersquaremetre,\candelapersquaremetrenp,\cdot}
+% \DoNotIndex{\check@mathfonts,\circ}
+% \DoNotIndex{\coulombpercubicmetre,\coulombpercubicmetrenp,\coulombperkilogram,\coulombperkilogramnp}
+% \DoNotIndex{\coulombpermol,\coulombpermolnp,\coulombpersquaremetre,\coulombpersquaremetrenp,\csname}
+% \DoNotIndex{\cubicmetreperkilogram,\cubicmetrepersecond,\CurrentOption}
+% \DoNotIndex{\decimals,\DeclareFontEncoding,\DeclareFontFamily}
+% \DoNotIndex{\DeclareFontShape,\DeclareFontSubstitution,\DeclareMathSymbol}
+% \DoNotIndex{\DeclareOption,\DeclareRobustCommand,\DeclareSymbolFont,\DeclareTextSymbol}
+% \DoNotIndex{\DeclareTextSymbolDefault}
+% \DoNotIndex{\def,\displaystyle,\do}
+% \DoNotIndex{\else,\csname,\endcsname,\begingroup,\endgroup,\endinput,\ensuremath,\advancemath,\bgroup}
+% \DoNotIndex{\egroup,\everymath}
+% \DoNotIndex{\ExecuteOptions,\expandafter,\f@size}
+% \DoNotIndex{\faradpermetre,\faradpermetrenp,\fi,\filedate,\fileversion,\firstchoice@false,\firstchoice@true,\font}
+% \DoNotIndex{\graypersecond,\graypersecondnp,\hbox,\henrypermetre,\henrypermetrenp,\hspace}
+% \DoNotIndex{\if@defGray,\if@defsquaren,\if@optionbinary,\if@optionNoAMS,\if@redefGray,\if@redefsquare}
+% \DoNotIndex{\if@scientific,\if@textstyle,\iffirstchoice@,\ifmmode,\ifundefined,\InputIfFileExists}
+% \DoNotIndex{\joulepercubicmetre,\joulepercubicmetrenp,\jouleperkelvin,\jouleperkelvinnp}
+% \DoNotIndex{\jouleperkilogram,\jouleperkilogramkelvin,\jouleperkilogramkelvinnp,\jouleperkilogramnp}
+% \DoNotIndex{\joulepermole,\joulepermolekelvin,\joulepermolekelvinnp,\joulepermolenp,\joulepersquaremetre}
+% \DoNotIndex{\joulepersquaremetrenp,\joulepertesla,\jouleperteslanp}
+% \DoNotIndex{\kilogrammetrepersecond,\kilogrammetrepersecondnp,\kilogrammetrepersquaresecond}
+% \DoNotIndex{\kilogrammetrepersquaresecondnp,\kilogrampercubicmetre,\kilogrampercubicmetrecoulomb}
+% \DoNotIndex{\kilogrampercubicmetrecoulombnp,\kilogrampercubicmetrenp,\kilogramperkilomole}
+% \DoNotIndex{\kilogramperkilomolenp,\kilogrampermetre,\kilogrampermetrenp,\kilogrampersecond}
+% \DoNotIndex{\kilogrampersecondcubicmetre,\kilogrampersecondcubicmetrenp,\kilogrampersecondnp}
+% \DoNotIndex{\kilogrampersquaremetre,\kilogrampersquaremetrenp,\kilogrampersquaremetresecond}
+% \DoNotIndex{\kilogrampersquaremetresecondnp,\kilogramsquaremetre,\kilogramsquaremetrenp}
+% \DoNotIndex{\kilogramsquaremetrepersecond,\kilogramsquaremetrepersecondnp,\let}
+% \DoNotIndex{\mathcode,\mathchoice,\mathord,\mathrm,\mbox}
+% \DoNotIndex{\MessageBreak,\metrepersecond,\metrepersecondnp,\metrepersquaresecond,\metrepersquaresecondnp}
+% \DoNotIndex{\molepercubicmetre,\molepercubicmetrenp,\NeedsTeXFormat,\newcommand}
+% \DoNotIndex{\newif,\newlength}
+% \DoNotIndex{\newtonmetrenp,\newtonpercubicmetre,\newtonpercubicmetrenp}
+% \DoNotIndex{\newtonperkilogram,\newtonperkilogramnp,\newtonpermetre}
+% \DoNotIndex{\newtonpermetrenp,\newtonpersquaremetre,\newtonpersquaremetrenp}
+% \DoNotIndex{\nfss@text,\no@qsk,\ohmmetre,\Omega}
+% \DoNotIndex{\PackageError,\packagemessage,\packagename}
+% \DoNotIndex{\PackageWarning,\PackageWarningNoLine,\persquaremetresecond,\period@active}
+% \DoNotIndex{\persquaremetresecondnp,\Prefixes,\ProcessOptions,\protect,\providecommand}
+% \DoNotIndex{\ProvidesPackage,\quantityskip,\radianpersecond,\radianpersecondnp}
+% \DoNotIndex{\radianpersquaresecond,\radianpersquaresecondnp}
+% \DoNotIndex{\relax,\renewcommand,\RequirePackage,\RequirePackageWithOptions}
+% \DoNotIndex{\rpcubicmetreperkilogram,\rpcubicmetrepersecond,\rperminute,\rpfourth}
+% \DoNotIndex{\rpsquare,\rpsquared,\rpsquaremetreperkilogram}
+% \DoNotIndex{\selectfont,\settowidth,\sf@size,\SI@fstyle}
+% \DoNotIndex{\SIunits@@,\SIunits@execopt,\SIunits@opt@cdot,\SIunits@opt@derived}
+% \DoNotIndex{\SIunits@opt@derivedinbase,\SIunits@opt@mediumqspace,\SIunits@opt@mediumspace}
+% \DoNotIndex{\SIunits@opt@thickqspace,\SIunits@opt@thickspace,\SIunits@opt@thinqspace}
+% \DoNotIndex{\SIunits@opt@thinspace,\skewchar,\space}
+% \DoNotIndex{\squaremetrepercubicmetre,\squaremetrepercubicmetrenp,\squaremetrepercubicsecond}
+% \DoNotIndex{\squaremetrepercubicsecondnp,\squaremetreperkilogram,\squaremetrepernewtonsecond}
+% \DoNotIndex{\squaremetrepernewtonsecondnp,\squaremetrepersecond,\squaremetrepersecondnp}
+% \DoNotIndex{\squaremetrepersquaresecond,\squaremetrepersquaresecondnp,,\ssf@size}
+% \DoNotIndex{\stepcounter,\symbols,\textdef@,\textstyle,\tf@size,\typeout}
+% \DoNotIndex{\voltpermetre,\voltpermetrenp,\wattpercubicmetre,\wattpercubicmetrenp}
+% \DoNotIndex{\wattperkilogram,\wattperkilogramnp,\wattpermetrekelvin,\wattpermetrekelvinnp}
+% \DoNotIndex{\wattpersquaremetre,\wattpersquaremetrenp,\wattpersquaremetresteradian}
+% \DoNotIndex{\wattpersquaremetresteradiannp}
+%
+%\GetFileInfo{SIunits.sty}
+% \changes{\fileversion}{\filedate}{Current version submitted to CTAN}
+%\title{The \pkgname{SIunits}\ package\thanks{This file has version number \fileversion{}, last revised
+%\filedate{} \packagemessage}\\{Consistent application of SI units}}
+%\author{Marcel Heldoorn\thanks{Now maintained by Joseph Wright, e-mail: %
+%joseph.wright@morningstar2.co.uk}}
+%\date{File date \filedate}
+%\maketitle
+%
+%\begin{abstract}
+%\noindent This article describes the \pkgname{SIunits}\ package that provides support for
+%the \textsf{Syst\`{e}me International d'Unit\'{e}s} (SI).
+%
+%The Syst\`{e}me International d'Unit\'{e}s (SI), the modern form of the metric system, is the
+%most widely used system of units and measures around the world. But despite this there is
+%widespread misuse of the system with incorrect names and symbols used as a matter a
+%course - even by well educated and trained people who should know better. For example how
+%often do we see: \milli\hertz, \mega hz or \milli hz written when referring to computer
+%clock rates? The correct form is actually \mega\hertz. Note that the capitalisation does
+%matter.
+%
+%Hence, a clear system for the use of units is needed, satisfying the next principles:
+%\begin{enumerate}
+%\item the system should consist of measuring units based on unvariable quantities in nature;
+%\item all units other than the base units should be derived from these base units; and
+%\item multiples and submultiples of the units should be decimal.
+%\end{enumerate}
+%The name Syst\`{e}me International d'Unit\'{e}s (International System of Units) with the
+%international abbreviation SI was adopted by the Conf\'{e}rence G\'{e}n\'{e}rale des Poids et Mesures
+%(CGPM) in 1960. It is a coherent system based on seven base units (CGPM 1960 and 1971).
+%
+%
+%The \pkgname{SIunits}\ package can be used to standardise the use of units in your
+%writings. Most macros are easily adaptable to personal preferences. However, you are
+%welcome (and strongly invited\footnote{There is an enormous \LaTeX\ Knowledge Base out
+%there.}) to suggest any improvements.
+%\end{abstract}
+%\newpage
+%\section*{What's new?}
+%\subsubsection*{New in version~1.36}
+%\begin{enumerate}
+% \item Real minus sign in text mode
+%\end{enumerate}
+%\subsubsection*{New in version~1.35}
+%\begin{enumerate}
+% \item Improved \cs{elecronvolt} appearance\footnote{All changes for this version suggested by Philip Ratcliffe}
+% \item Added \cs{dalton}, \cs{atomicmassunit} units (both formally non-SI)
+% \item Minor improvements to the documentation
+%\end{enumerate}
+%\subsubsection*{New in version~1.34}
+%\begin{enumerate}
+% \item Maintainer is now Joseph Wright (\href{mailto:joseph.wright@morningstar2.co.uk}%
+% {\texttt{joseph.wright@morningstar2.co.uk}})
+% \item Bug fix for negative signs in textstyle mode\footnote{Thanks to Stefan Pinnow}
+% \item License changed to LPPL 1.3 or later
+%\end{enumerate}
+%\newpage\tableofcontents\newpage
+%\section{Introduction}
+%
+%\subsection{Historical notes}
+%In 1948 the 9th General Conference on Weights and Measures (CGPM\footnote{See section
+%\ref{acronyms} for acronyms}), by its Resolution 6, instructed the International
+%Committee for Weights and Measures (CIPM\footnotemark[\value{footnote}]):
+%\begin{verse}
+%`to study the establishment of a complete set of rules for units of measurement';
+%
+%`to find out for this purpose, by official inquiry, the opinion prevailing in scientific,
+%technical, and educational circles in all countries'; and
+%
+%`to make recommendations on the establishment of a \textit{practical system of units of
+%measurement} suitable for adoption by all signatories to the Meter Convention.'
+%\end{verse}
+%
+%The same General Conference also laid down, by its Resolution 7, general principles for
+%unit symbols and also gave a list of units with special names.
+%
+%
+%The 10th CGPM (1954), by its Resolution 6, and the 14th CGPM (1971), by its Resolution 3,
+%adopted as base units of this `practical system of units,' the units of the following
+%seven quantities: length, mass, time, electric current, thermodynamic temperature, amount
+%of substance, and luminous intensity.
+%
+%
+%The 11th CGPM (1960), by its Resolution 12, adopted the name \textit{Syst\`{e}me
+%International d'Unit\'{e}s (International System of Units)}, with the international
+%abbreviation \textit{SI}, for this practical system of units of measurement, and laid
+%down rules for the prefixes, the derived and supplementary units, and other matters, thus
+%establishing a comprehensive specification for units of measurement.
+%
+%\subsection{The classes of SI units}
+%The General Conference decided to base the International
+%System on a choice of seven well-defined units which by convention are regarded as
+%dimensionally independent: the metre, the kilogram, the second, the ampere, the kelvin,
+%the mole, and the candela. These units are called \textit{base units}.
+%
+%
+%The second class of SI units contain \textit{derived units}, i.\,e., units that can be
+%formed by combining base units according to the algebraic relations linking the
+%corresponding quantities. The names and symbols of some units thus formed in terms of
+%base units can be replaced by special names and symbols which can themselves be used to
+%form expressions and symbols of other derived units (see section \ref{derived}, p.
+%\pageref{derived}).
+%
+%
+%The 11th CGPM (1960) admitted a third class of SI units, called \textit{supplementary
+%units} and containing the SI units of plane and solid angle.
+%
+%
+%The 20th CGPM (1995) decided to eliminate the class of supplementary units as a separate
+%class in the SI. Thus the SI now consists of only two classes of units: base units and
+%derived units, with the radian and the steradian, which are the two supplementary units,
+%subsumed into the class of derived SI units.
+%
+%
+%\subsection{The SI prefixes}
+%The General Conference has adopted a series of prefixes to be used in forming the decimal
+%multiples and submultiples of SI units. Following CIPM Recommendation~1 (1969), the set
+%of prefixes is designated by the name \textit{SI prefixes}.
+%
+%The multiples and submultiples of SI units, which are formed by using the SI prefixes,
+%should be designated by their complete name, \textit{multiples and submultiples of SI
+%units}, in order to make a distinction between them and the coherent set of SI units
+%proper.
+%
+%\subsection{Acronyms}
+%\label{acronyms} The SI was established in 1960 by the CGPM. The CGPM is an
+%intergovernmental treaty organisation created by a diplomatic treaty called the Meter
+%Convention (\textit{Convention du M\`{e}tre}, often called the Treaty of the Meter in the
+%United States). The Meter Convention was signed in Paris in 1875 by representatives of
+%seventeen nations, including the United States. There are now forty-eight Member States,
+%including all the major industrialised countries. The Convention, modified slightly in
+%1921, remains the basis of all international agreement on units of measurement.
+%
+%The Meter Convention also created the International Bureau of Weights and Measures (BIPM,
+%Bureau International des Poids et Mesures) and the International Committee for Weights
+%and Measures (CIPM, Comit\'{e} International des Poids et Mesures). The BIPM, which is
+%located in S\`{e}vres, a suburb of Paris, France, and which has the task of ensuring
+%worldwide unification of physical measurements, operates under the exclusive supervision
+%of the CIPM, which itself comes under the authority of the CGPM.
+%
+%
+%
+%\begin{description}
+%\item[CGPM] General Conference on Weights and Measures (\textit{Conf\'{e}rence G\'{e}n\'{e}rale des Poids
+%et Mesures}). The CGPM is the primary intergovernmental treaty organisation responsible
+%for the SI, representing nearly 50 countries. It has the responsibility of ensuring that
+%the SI is widely disseminated and modifying it as necessary so that it reflects the
+%latest advances in science and technology.
+%
+%\item[CIPM] International Committee for Weights and Measures (\textit{Comit\'{e} International des
+%Poids et Mesures}). The CIPM comes under the authority of the CGPM. It suggests
+%modifications to the SI to the CGPM for formal adoption. The CIPM may also on its own
+%authority pass clarifying resolutions and recommendations regarding the SI.
+%
+%\item[BIPM] International Bureau of Weights and Measures (\textit{Bureau International des
+%Poids et Mesures}). The BIPM, located outside Paris, has the task of ensuring worldwide
+%unification of physical measurements. It is the ``international" metrology institute, and
+%operates under the exclusive supervision of the CIPM.
+%\end{description}
+%
+%\subsection{Some useful definitions}
+%\begin{description}
+%\item [quantity in the general sense] A quantity in the general sense is a property ascribed to phenomena, bodies, or
+%substances that can be quantified for, or assigned to, a particular phenomenon, body, or
+%substance. Examples are mass and electric charge.
+%\item [quantity in the particular sense] A quantity in the particular sense is a quantifiable or assignable property ascribed
+%to a particular phenomenon, body, or substance. Examples are the mass of the moon and the
+%electric charge of the proton.
+%\item [physical quantity] A physical quantity is a quantity that can be used in the mathematical equations of
+%science and technology.
+%\item [unit] A unit is a particular physical quantity, defined and adopted by convention, with
+%which other particular quantities of the same kind are compared to express their value.
+%\end{description}
+%
+%
+%\noindent The \textbf{value of a physical quantity} is the quantitative expression of a
+%particular physical quantity as the product of a number and a unit, the number being its
+%numerical value. Thus, the numerical value of a particular physical quantity depends on
+%the unit in which it is expressed.
+%
+%\label{celsiusexample}
+%More formally, the value of quantity \(A\) can be written as \(A=\lbrace A\rbrace [A]\),
+%where \(\{A\}\) is the numerical value of \(A\) when \(A\) is expressed in the unit
+%\([A]\). The numerical value can therefore be written as \(\lbrace A\rbrace=A/[A]\),
+%which is a convenient form for use in figures and tables. Thus to eliminate the
+%possibility of misunderstanding, an axis of a graph or the heading of a column of a table
+%can be labelled `\(t\)\per\celsius' instead of `\(t\)(\celsius)' or `Temperature
+%(\celsius)'. Similarly, another example: `\(E/\)(\voltpermetre)' instead of
+%`\(E\)(\voltpermetre)' or `Electric field strength (\voltpermetre)'.
+%
+%\addunit{\foot}{ft}
+%\Fe the value of the height \(h_{W}\) of the Washington Monument is \(h_{W} = \unit{169}{\metre}=
+%\unit{555}{\foot}\)\footnote{foot (\foot) is not part of the SI units}. Here \(h_{W}\) is the physical quantity, its value expressed in the
+%unit metre, unit symbol \metre, is \unit{169}{\metre}, and its numerical value when
+%expressed in metres is \(169\).
+%
+%\section{SI units}
+%\subsection{SI base units}
+%\subsubsection{Definitions}
+%The SI is founded on seven SI base units for seven base quantities assumed to be mutually
+%independent. The primary definitions of the SI base units are in French. Their current
+%definitions, along with an English translation, are given below:
+%\paragraph*{metre; \textit{m\`{e}tre}}
+%\begin{description}
+%\item[]
+%\frenchspacing\textit{Le m\`{e}tre est la longueur du trajet parcouru dans le vide par la lumi\`{e}re pendant
+%une dur\'{e}e de \(1/\intfmt{299792458}\) de seconde.}\\ {(17th CGPM (1983), Resolution 1).}\nonfrenchspacing
+%\item[]
+%{The metre is the length of the path travelled by light in vacuum during a time interval
+%of \(1/\intfmt{299792458}\) of a second.}
+%\end{description}
+%\paragraph*{kilogram; \textit{kilogramme}}
+%\begin{description}
+%\item[]
+%\frenchspacing\textit{Le kilogramme est l'unit\'{e} de masse; il est \'{e}gal \`{a} la masse du prototype
+%international du kilogramme.}\\ (1st CGPM (1889) and 3rd CGPM (1901)).\nonfrenchspacing
+%\item[]
+%{The kilogram is the unit of mass; it is equal to the mass of the international prototype
+%of the kilogram.} \\{\textit{Note}: This international prototype is made of
+%platinum-iridium and is kept at the International Bureau of Weights and Measures, S\`{e}vres,
+%France.}
+%\end{description}
+%\paragraph*{second; \textit{seconde}}
+%\begin{description}
+%\item[]
+%\frenchspacing\textit{La seconde est la dur\'{e}e de \(9\digitsep192\digitsep631\digitsep770\) p\'{e}riodes de
+%la radiation correspondant \`{a} la transition entre les deux niveaux hyperfins de l'\'{e}tat
+%fondamental de l'atome de cesium 133.} \\(13th CGPM (1967), Resolution 1).\nonfrenchspacing
+%\item[]
+%{The second is the duration of \(9\digitsep192\digitsep631\digitsep770\) periods of the
+%radiation corresponding to the transition between the two hyperfine levels of the ground
+%state of the cesium-\(133\) atom.}
+%\end{description}
+%\textit{Note}: This definition refers to a caesium atom at rest at a temperature of \unit{0}{\kelvin}.
+%\paragraph*{ampere; \textit{amp\`{e}re}}
+%\begin{description}
+%\item[]
+%\frenchspacing\textit{L'amp\`{e}re est l'intensit\'{e} d'un courant constant qui, maintenu dans deux
+%conducteurs parall\`{e}les, rectilignes, de longueur infinie, de section circulaire
+%n\'{e}gligeable, et plac\'{e}s \`{a} une distance de 1 m\`{e}tre l'un de l'autre dans le vide, produirait
+%entre ces conducteurs une force \'{e}gale \`{a} \(\sci{2e-7}\) newton par m\`{e}tre de longueur.}\\
+%(9th CGPM (1948), Resolutions 2 and 7).\nonfrenchspacing
+%\item[]
+%{The ampere is that constant current which, if maintained in two straight parallel
+%conductors of infinite length, of negligible circular cross-section, and placed 1 metre
+%apart in vacuum, would produce between these conductors a force equal to \(\sci{2e-7}\)
+%newton per metre of length.}
+%\end{description}
+%\paragraph*{kelvin; \textit{kelvin}}
+%\begin{description}
+%\item[]
+%\frenchspacing\textit{Le kelvin, unit\'{e} de temp\'{e}rature thermodynamique, est la fraction \(1/273.16\) de
+%la temp\'{e}rature thermodynamique du point triple de l'eau.}\\(13th CGPM (1967), Resolution
+%4).\nonfrenchspacing
+%\item[]
+%{The kelvin, unit of thermodynamic temperature, is the fraction \(1/273.16\) of the
+%thermodynamic temperature of the triple point of water.}
+%\end{description}
+%\textit{Note}: The 13th CGPM (1967, Resolution 3) also decided that the unit kelvin
+%and its symbol \kelvin\ should be used to express
+%both thermodynamic temperature and an interval or a difference of temperature, instead of
+%`degree Kelvin' with symbol \degree\kelvin.
+%
+%
+%In addition to the thermodynamic temperature (symbol \(T\)) there is also the Celsius
+%(symbol \(t\)) defined by the equation \(t= T-T_{0}\) where \(T_{0}=\)
+%\unit{273.15}{\kelvin}. Celsius temperature is expressed in degree Celsius; \textit{degr\'{e}
+%Celsius} (symbol \celsius). The unit `degree Celsius' is equal to the unit
+%`kelvin'; in this case, `degree Celsius' is a special name used in place of `kelvin'. A
+%temperature interval or difference of Celsius temperature can, however, be expressed in
+%kelvins as well as in degrees Celsius.
+%
+%\paragraph*{mole; \textit{mole}}
+%\begin{description}
+%\item[]
+%\frenchspacing\textit{1°. La mole est la quantit\'{e} de mati\`{e}re d'un syst\`{e}me contenant autant d'entit\'{e}s
+%\'{e}l\'{e}mentaires qu'il y a d'atomes dans \(0,012\) kilogramme de carbone \(12\).}
+%\item[]
+%\textit{2°. Lorsqu'on emploie la mole, les entit\'{e}s \'{e}l\'{e}mentaires doivent \^{e}tre sp\'{e}cifi\'{e}es
+%et peuvent \^{e}tre des atomes, des mol\'{e}cules, des ions, des \'{e}lectrons, d'autres particules
+%ou des groupements sp\'{e}cifi\'{e}s de telles particules.}\\ (14th CGPM (1971), Resolution 3).\nonfrenchspacing
+%\item[]
+%{1. The mole is the amount of substance of a system which contains as many elementary
+%entities as there are atoms in \(0.012\) kilogram of carbon \(12\).}
+%\item[]
+%{2. When the mole is used, the elementary entities must be specified and may be atoms,
+%molecules, ions, electrons, other particles or specified groups of such
+%particle.}
+%\end{description}
+%\textit{Note}: In this definition, it is understood that the carbon 12 atoms
+%are unbound, at rest and in their ground state.
+%\paragraph*{candela; \textit{candela}}
+%\begin{description}
+%\item[]
+%\frenchspacing\textit{La candela est l'intensit\'{e} lumineuse, dans une direction donn\'{e}e, d'une source qui
+%\'{e}met une radiation monochromatique de fr\'{e}quence \(\sci{540e12}\) hertz et dont
+%l'intensit\'{e} \'{e}nerg\'{e}tique dans cette direction est \(1/683\) watt par st\'{e}radian.}\\ (16th
+%CGPM (1979), Resolution 3).\nonfrenchspacing
+%\item[]
+%{The candela is the luminous intensity, in a given direction, of a source that emits
+%monochromatic radiation of a frequency \(\sci{540e12}\) hertz and has a radiant intensity
+%in that direction of \(1/683\) watt per steradian.}
+%\end{description}
+%\newpage
+%\subsubsection{Symbols}
+%The base units of the International System are collected in table~\ref{table:base} with
+%their names and their symbols (10th CGPM (1954), Resolution 6; 11th CGPM (1960),
+%Resolution 12; 13th CGPM (1967), Resolution 3; 14th CGPM (1971), Resolution 3).\\
+% \begin{table}[btp]
+% \caption{--- SI base units ---}\label{table:base}
+% \centering
+% \begin{tabular}{llc}\hline
+% \textbf{Quantity} & \textbf{Name} & \textbf{Symbol} \\ \hline
+% length & metre & \metre \\
+% mass & kilogram & \kilogram \\
+% time & second & \second \\
+% electric current & ampere & \ampere \\
+% thermodynamic temperature & kelvin & \kelvin \\
+% amount of substance & mole & \mole \\
+% luminous intensity & candela & \candela \\ \hline
+% \end{tabular}
+% \end{table}
+%
+%\subsection{SI derived units}\label{derived}
+%Derived units are units which may be expressed in terms of base units by means of the
+%mathematical symbols of multiplication and division. Certain derived units have been
+%given special names and symbols, and these special names and symbols may themselves be
+%used in combination with those for base and other derived units to express the units of
+%other quantities.
+%\subsubsection{Units expressed in terms of base units}
+%Table~\ref{table:derived1} lists some examples of derived units expressed directly in
+%terms of base units. The derived units are obtained by multiplication and division of
+%base units.
+% \begin{table}[btp]
+% \caption{--- Examples of SI derived units ---}\label{table:derived1}
+% \begin{minipage}[]{\textwidth}
+% \centering
+% \begin{tabular}{llc}\hline
+% \textbf{Derived quantity} & \textbf{Name} & \textbf{Symbol}\\ \hline
+% area & square metre & \squaremetre \\
+% volume & cubic metre & \cubicmetre \\
+% speed, velocity & metre per second & \metrepersecond\\
+% acceleration & metre per second squared & \metrepersquaresecond \\
+% wave number & reciprocal metre & \reciprocal\metre \\
+% mass density & kilogram per cubic metre & \kilogrampercubicmetre \\
+% specific volume & cubic metre per kilogram & \cubicmetreperkilogram \\
+% current density & ampere per square metre & \amperepersquaremetre \\
+% magnetic field strength & ampere per metre & \amperepermetre \\
+% amount-of-substance concentration & mole per cubic metre & \mole\per\cubicmetre \\
+% luminance & candela per square metre & \candelapersquaremetre \\
+% mass fraction & kilogram per kilogram & \kilogram\per\kilogram\footnote{the symbol 1
+% for quantities of dimension 1 such as mass fraction is generally omitted.} \\
+% \end{tabular}
+% \end{minipage}
+% \end{table}
+%
+%\subsubsection{SI derived units with special names and symbols}For ease of understanding and
+%convenience, 21 SI derived units have been given special names and symbols, as shown in
+%table~\ref{table:derived2}. They may themselves be used to express other derived units.
+% \begin{table}[btp]
+% \caption{--- SI derived units with special names and symbols ---}\label{table:derived2}
+% \begin{minipage}[]{\textwidth}\renewcommand{\thefootnote}{\textit{\alph{footnote}}}
+% \centering
+% \begin{tabular}{llll}\hline
+% \textbf{Name} & \textbf{Expression in} & \textbf{Symbol} & \textbf{Expression in} \\
+% & \textbf{SI base units} & & \textbf{SI derived units}\\ \hline
+% radian\footnotemark[1] & \radianbase\(\,=1\)\footnotemark[2] & \radian & \derradian \\
+% steradian\footnotemark[1] & \steradianbase \(\,=1\)\footnotemark[2] & \steradian\footnotemark[3] & \dersteradian \\
+% hertz & \hertzbase & \hertz & \derhertz \\
+% newton & \newtonbase & \newton & \dernewton \\
+% pascal & \pascalbase & \pascal & \derpascal \\
+% joule & \joulebase & \joule & \derjoule \\
+% watt & \wattbase & \watt & \derwatt \\
+% coulomb & \coulombbase & \coulomb & \dercoulomb \\
+% volt & \voltbase & \volt & \dervolt \\
+% farad & \faradbase & \farad & \derfarad \\
+% ohm & \ohmbase & \ohm & \derohm \\
+% siemens & \siemensbase & \siemens & \dersiemens \\
+% weber & \weberbase & \weber & \derweber \\
+% tesla & \teslabase & \tesla & \dertesla \\
+% henry & \henrybase & \henry & \derhenry \\
+% celsius & \celsiusbase & \celsius & \dercelsius \\
+% lumen & \lumenbase\footnotemark[3] & \lumen & \derlumen \\
+% lux & \luxbase & \lux & \derlux \\
+% becquerel & \becquerelbase & \becquerel & \derbecquerel \\
+% gray & \graybase & \gray & \dergray \\
+% sievert\footnotemark[4] & \sievertbase & \sievert & \dersievert \\
+% katal\footnotemark[5] & \katalbase & \katal & \derkatal\\
+% \end{tabular}
+% \footnotetext[1]
+% {The radian and steradian may be used advantageously in expressions for derived units to
+% distinguish between quantities of a different nature but of the same dimension; some
+% examples are given in table~\ref{table:derived3}.}
+% \footnotetext[2]
+% {In practice, the symbols \radian\ and \steradian\ are used where appropriate, but the
+% derived unit `\(1\)' is generally omitted.}
+% \footnotetext[3]
+% {In photometry, the unit name steradian and the unit symbol \steradian\ are usually
+% retained in expressions for derived units.}
+% \footnotetext[4]
+% {Other quantities expressed in sieverts are ambient dose equivalent, directional dose
+% equivalent, personal dose equivalent, and organ equivalent dose.}
+% \footnotetext[5]
+% {The 21st Conf\'{e}rence G\'{e}n\'{e}rale des Poids et Mesures decides to adopt the special name katal,
+% symbol \katal, for the SI unit mole per second to express catalytic activity, especially
+% in the fields of medicine and biochemistry, ... (21th CGPM (1999), Resolution 12).}
+% \end{minipage}
+% \end{table}
+%\subsubsection{Use of SI derived units with special names and symbols}
+%Examples of SI derived units that can be expressed with the aid of SI derived units
+%having special names and symbols (including the radian and steradian) are given in
+%table~\ref{table:derived2}. The advantages of using the special names and symbols of SI
+%derived units are apparent in table~\ref{table:derived3}. Consider, for example, the
+%quantity molar entropy: the unit \joenit{\joule\per\mole.\kelvin}\ is obviously more easily
+%understood than its SI base-unit equivalent,
+%\joenit{\squaremetre.\kilogram.\second\rpsquared.\reciprocal\kelvin\reciprocal\mole}.
+%Nevertheless, it should always be recognised that the special names and symbols exist for
+%convenience. Tables~\ref{table:derived2}~\&~\ref{table:derived3} also show that the
+%values of several different quantities are expressed in the same SI unit. For example,
+%the joule per kelvin (\joule\per\kelvin) is the SI unit for heat capacity as well as for
+%entropy. Thus the name of the unit is not sufficient to define the quantity measured. A
+%derived unit can often be expressed in several different ways through the use of base
+%units and derived units with special names. In practice, with certain quantities,
+%preference is given to using certain units with special names, or combinations of units,
+%to facilitate the distinction between quantities whose values have identical expressions
+%in terms of SI base units. For example, the SI unit of frequency is specified as the
+%hertz (Hz) rather than the reciprocal second (\reciprocal\second), and the SI unit of
+%moment of force is specified as the newton metre (\newtonmetre) rather than the joule
+%(\joule).
+%
+% \begin{table}[btp]
+% \caption{--- Examples of SI derived units expressed with the aid of SI
+% derived units having special names and symbols ---}\label{table:derived3}
+% \begin{minipage}[]{\textwidth}\renewcommand{\thefootnote}{\textit{\alph{footnote}}}
+% \centering
+% \begin{tabular}{lll}\hline
+% \textbf{Derived quantity} & \textbf{Name} & \textbf{Symbol}\\ \hline
+% angular velocity & radian per second & \radianpersecond \\
+% angular acceleration & radian per second squared & \radianpersquaresecond \\
+% dynamic viscosity & pascal second & \pascalsecond \\
+% moment of force & newton metre & \newtonmetre \\
+% surface tension & newton per metre & \newtonpermetre \\
+% heat flux density,\\ irradiance & watt per square metre & \wattpersquaremetre \\
+% radiant intensity & watt per steradian & \watt\per\steradian \\
+% radiance & watt per square metre steradian & \wattpersquaremetresteradian \\
+% heat capacity,\\ entropy & joule per kelvin & \jouleperkelvin \\
+% specific heat capacity,\\ specific entropy & joule per kilogram kelvin & \jouleperkilogramkelvin \\
+% specific energy & joule per kilogram & \jouleperkilogram \\
+% thermal conductivity & watt per metre kelvin & \wattpermetrekelvin \\
+% energy density & joule per cubic metre & \joulepercubicmetre \\
+% electric field strength & volt per metre & \voltpermetre \\
+% electric charge density & coulomb per cubic metre & \coulombpercubicmetre \\
+% electric flux density & coulomb per square metre & \coulombpersquaremetre \\
+% permittivity & farad per metre & \faradpermetre \\
+% permeability & henry per metre & \henrypermetre \\
+% molar energy & joule per mole & \joulepermole \\
+% molar entropy, molar\\ heat capacity & joule per mole kelvin & \joulepermolekelvin \\
+% exposure (x and \(\gamma\) rays)& coulomb per kilogram & \coulombperkilogram \\
+% absorbed dose rate & gray per second & \graypersecond \\
+% catalytic (activity)\\ concentration & katal per cubic metre & \katalpercubicmetre \\
+% \end{tabular}
+% \end{minipage}
+% \end{table}
+% \subsection{Dimension of a quantity}
+% Any SI derived quantity \(Q\) can be expressed in terms of the SI base quantities length
+% (\(l\)), mass (\(m\)), time (\(t\)), electric current (\(I\)), thermodynamic temperature
+% (\(T\)), amount of substance (\(n\)), and luminous intensity (\(I_{\mathrm{v}}\)) by an
+% equation of the form
+% \[
+% Q = l^{\alpha}m^{\beta}t^{\gamma}I^{\delta}T^{\varepsilon}n^{\zeta}I_{\mathrm{v}}^{\eta}
+% \sum\limits_{k = 1}^K {a_k} ,
+% \]
+% where the exponents \(\alpha\), \(\beta\), \(\gamma\), \(\ldots\) are numbers and the
+% factors \(a_{k}\) are also numbers. The dimension of \(Q\) is defined to be
+% \[
+% \dim Q = \dimn{L}^{\alpha} \dimn{M}^{\beta} \dimn{T}^{\gamma} \dimn{I}^{\delta}
+% \dimn{\Theta}^{\varepsilon} \dimn{N}^{\zeta} \dimn{J}^{\eta} ,
+% \]
+% where \dimn{L}, \dimn{M}, \dimn{T}, \dimn{I}, \dimn{\Theta}, \dimn{N} and \dimn{J}\ are
+% the dimensions of the SI base quantities length, mass, time, electric current,
+% thermodynamic temperature, amount of substance, and luminous intensity, respectively. The
+% exponents \(\alpha\), \(\beta\), \(\gamma\), \(\ldots\) are called ``dimensional
+% exponents''. The SI derived unit of \(Q \) is \(\joenit{\metre^{\alpha}.\kilogram^{\beta}
+%.\second^{\gamma}.\ampere^{\delta}.\kelvin^{\varepsilon}.\mole^{\zeta}
+%.\candela^{\eta}}\), which is obtained by replacing the dimensions of the SI base
+% quantities in the dimension of \(Q\) with the symbols for the corresponding base units.
+% \begin{quote}
+% \Fe\ Consider a nonrelativistic particle of mass \(m\) in uniform motion which travels a
+% distance \(l\) in a time \(t\). Its velocity is \(\upsilon=l / t\) and its kinetic energy
+% is \(E_{\mathrm{k}} =m\upsilon^{2} /2 = l^{2}mt^{-2} / 2\). The dimension of
+% \(E_{\mathrm{k}}\) is \(\dim E_{\mathrm{k}} = \dimn{L}^{2}\dimn{M}\dimn{T}^{-2}\) and the
+% dimensional exponents are \(2\), \(1\), and~\(-2\). The SI derived unit of \(E_{\mathrm{k}}\) is then
+% \(\joenit{\metre\squared.\kilogram.\second\rpsquared}\), which is given the special name
+% ``joule'' and special symbol \joule.
+% \end{quote}
+%
+% \subsubsection{Units for dimensionless quantities, quantities of dimension one}
+% A derived quantity of dimension one, which is sometimes called a ``dimensionless
+% quantity'', is one for which all of the dimensional exponents are zero: \(\dim Q = 1\). It
+% therefore follows that the derived unit for such a quantity is also the number one,
+% symbol 1, which is sometimes called a ``dimensionless derived unit''.
+% Thus the SI unit of all quantities having the dimensional product one is the
+% number one. Examples of such quantities are refractive index, relative permeability, and
+% friction factor. All of these quantities are described as being dimensionless, or of
+% dimension one, and have the coherent SI unit 1. Their values are simply expressed as
+% numbers and, in general, the unit 1 is not explicitly shown.
+% \begin{quote}
+% \Fe\ The mass fraction \(w_{\mathrm{B}}\) of a substance B in a mixture is given by
+% \(w_{\mathrm{B}} = m_{\mathrm{B}}/m\), where \(w_{\mathrm{B}}\) is the mass of B and
+% \(m\) is the mass of the mixture. The dimension of \(w_{\mathrm{B}}\) is \(\dim
+% w_{\mathrm{B}} = \dimn{M}^{1} \dimn{M}^{-1} = 1\); all of the dimensional exponents of
+% \(w_{\mathrm{B}}\) are zero, and its derived unit is \(\joenit{\kilogram^{1}.\kilogram^{-1}}=
+% 1\) also.
+% \end{quote}
+% In a few cases, however, a special name is given to this unit, mainly to avoid
+% confusion between some compound derived units. This is the case for the radian,
+% steradian and neper.
+%
+%\subsection{Rules and style conventions for writing and using SI unit symbols}
+%The general principles concerning writing the unit symbols were adopted by the 9th CPGM
+%(1948), by its Resolution 7:
+%\begin{enumerate}
+%\item Roman (upright) type, in general lower case\footnote{The recommended symbol for the
+%litre (`liter') in the United States is \liter.}, is used for the unit symbols. If,
+%however, the name of the unit is derived from a proper name, the first letter of the symbol
+%is in upper case.
+% \item Unit symbols are unaltered in the plural.
+% \item Unit symbols are not followed by a period\footnote{Unless at the end of a sentence.}.
+%\end{enumerate}
+%To ensure uniformity in the use of the SI unit symbols, ISO International Standards give
+%certain recommendations. Following these recommendations:
+%\begin{list}{a)}{}
+%\item The product of two or more units are indicated by means of either a half-high (that
+%is, centred) dot or a space\footnote{ISO suggests that if a space is used to indicate units
+%formed by multiplication, the space may be omitted if it does not cause confusion. This
+%possibility is reflected in the common practice of using the symbol \kilo\watt\hour\ rather
+%than \kilo\watt\(\cdot\)\hour\ or \joenit{\kilo\watt.\hour}\ for the kilowatt hour.}. The
+%half-high dot is preferred, because it is less likely to lead to confusion,
+% \begin{list}{}{}
+% \item \fe
+% \item \newton\(\cdot\)\metre\ or \(\newton\;\metre\).
+% \end{list}
+%\end{list}
+%\begin{list}{b)}{}
+% \item A solidus (oblique stroke,/), a horizontal line, or negative exponents may be used to
+%express a derived unit formed from two others by division,
+% \begin{list}{}{}
+% \item \fe
+% \item \metre\per\second,\ \(\frac{\metre}{\second}\),\ or \joenit{\metre.\reciprocal\second}
+% \end{list}
+%\end{list}
+%\begin{list}{c)}{}
+% \item The solidus must not be repeated on the same line unless ambiguity is avoided by
+% parentheses. In complicated cases negative exponents or parentheses should be used,
+% \begin{list}{}{}
+% \item \fe
+% \item \metre\per\second\squared\ or\ \joenit{\metre.\second\rpsquared}\ \textit{but not:\ }\metre\per\second\per\second\
+% \item \joenit{\metre.\kilogram\per(\cubic\second.\ampere)}\ or
+% \joenit{\metre.\kilogram.\rpcubic\second.\reciprocal\ampere}\ \textit{but not:}\ \joenit{\metre.\kilogram\per\cubic\second\per\ampere}
+% \end{list}
+%\end{list}
+%\subsubsection{Space between numerical value and unit symbol}
+%In the expression for the value of a quantity, the unit symbol is placed after the numerical value
+%and a space is left between the numerical value and the unit symbol.
+%The only exceptions to this rule are for the unit symbols for degree, minute, and second for plane
+%angle: \degree, \paminute, and \pasecond, respectively (see Table~\ref{table:accepted1}), in which case
+%no space is left between the numerical value and the unit symbol.
+% \begin{list}{}{}
+% \item \fe
+% \item \(\alpha = \unit{30}{\degree}\unit{22}{\paminute}\unit{8}{\pasecond}\) Note: \(\alpha\) is a quantity symbol for plane angle.
+% \end{list}
+% This rule means that the symbol \celsius\ for the degree Celsius is preceded by a space when one expresses the values of
+% Celsius temperatures.
+% \begin{list}{}{}
+% \item \fe
+% \item \(t = \unit{30.2}{\celsius}\) \textit{but not} \(t = 30.2\celsius\)
+% \end{list}
+%\section{SI Prefixes}
+%\subsection{Decimal multiples and submultiples of SI units}
+%The 11th CGPM (1960), by its Resolution 12, adopted a first series of prefixes and symbols
+%of prefixes to form the names and symbols of the decimal multiples and submultiples of SI
+%units. Prefixes for \power {10}{-15} and \power {10}{-18} were added by the 12th CGPM
+%(1964), by its Resolution 8, those for \power {10}{15} and \power {10}{18} by the CGPM
+%(1975), by its Resolution 10, and those for \power {10}{21}, \power {10}{24}, \power {10}
+%{-21}, and \power {10}{-24} were proposed by the CIPM for approval by the 19th CGPM (1991),
+%and adopted. The prefixes are as shown in tabel~\ref{table:prefixes}.
+% \begin{table}[btp]
+% \caption{--- SI prefixes ---}\label{table:prefixes}
+% \begin{minipage}[]{\textwidth}\renewcommand{\thefootnote}{\textit{\alph{footnote}}}
+% \centering
+% \begin{tabular}{llllll}\hline
+% \textbf{Name}& \textbf{Symbol}& \textbf{Factor} & \textbf{Name}& \textbf{Symbol}& \textbf{Factor}\\ \hline
+% yocto & \yocto & \yoctod = \power{(\kilod)}{-8}& yotta & \yotta & \yottad = \power{(\kilod)}{8}\\
+% zepto & \zepto & \zeptod = \power{(\kilod)}{-7}& zetta & \zetta & \zettad = \power{(\kilod)}{7}\\
+% atto & \atto & \attod = \power{(\kilod)}{-6} & exa & \exa & \exad = \power{(\kilod)}{6}\\
+% femto & \femto & \femtod = \power{(\kilod)}{-5}& peta & \peta & \petad = \power{(\kilod)}{5}\\
+% pico & \pico & \picod = \power{(\kilod)}{-4} & tera & \tera & \terad = \power{(\kilod)}{4}\\
+% nano & \nano & \nanod = \power{(\kilod)}{-3} & giga & \giga & \gigad = \power{(\kilod)}{3}\\
+% micro & \micro & \microd = \power{(\kilod)}{-2}& mega & \mega & \megad = \power{(\kilod)}{2}\\
+% milli & \milli & \millid = \power{(\kilod)}{-1}& kilo & \kilo & \kilod = \power{(\kilod)}{1}\\
+% centi & \centi & \centid & hecto & \hecto & \hectod \\
+% deci & \deci & \decid & deca\footnotemark[1] & \deca & \decad \\
+%
+% \end{tabular}
+% \footnotetext[1]
+% {In the USA, the spelling `deka' is extensively used.}
+% \end{minipage}
+% \end{table}
+% \subsection{Rules for using SI prefixes}
+% In accord with the general principles adopted by the ISO\footnote{ISO 31, in `Units of
+% measurement,' ISO Standards Handbook 2, 2nd Edition, ISO, Geneva, 1982, pp. 17--238}, the
+% CIPM recommends that the following rules for using the SI prefixes be observed:
+% \begin{enumerate}
+% \item Prefix symbols are printed in roman (upright) type without spacing between the prefix
+% symbol and the unit symbol. \item The grouping formed by the prefix symbol attached to the
+% unit symbol constitutes a new inseparable symbol (of a multiple of the unit concerned) which
+% can be raised to a positive or negative power and which can be combined with other unit
+% symbols to form compound unit symbols,
+% \begin{list}{}{}
+% \item \fe
+% \item \(\unit{1}{\centi\cubic\metre} = \cubic{(\unit{\power{10}{-2}}{\metre})} = \unit{\power{10}{-6}}{\cubic\metre}\)
+% \item \(\unit{1}{\reciprocal{\centi\metre}} = \reciprocal{(\unit{\centid}{\metre})} = \unit{\hectod}{\reciprocal\metre}\)
+% \item \(\unit{1}{\volt\per\centi\metre} = (\unit{1}{\volt})\per(\unit{\centid}{\metre}) = \unit{\hectod}{\volt\per\metre}\)
+% \end{list}
+% \item Compound prefixes, i.\,e., prefixes formed by juxtaposition of two or more SI prefixes
+% are not to be used,
+% \begin{list}{}{}
+% \item \fe \item \unit{1}{\pico\gram}\ (one picogram), \textit{but not} \unit{1}
+% {\milli\nano\gram}\ (one millinanogram)
+% \end{list}
+% \item A prefixes should never be used alone,
+% \begin{list}{}{}
+% \item \fe \item \megad\per\cubic\metre, \textit{but not}
+% \mega\per\cubic\metre
+% \end{list}
+% \end{enumerate}
+% \subsubsection{The kilogram}
+% It is important to note that the kilogram is the only SI unit with a prefix as part of its
+% name and symbol. Because multiple prefixes may not be used, in the case of the kilogram the
+% prefix names are used with the unit name `gram' and the prefix symbols are used with the
+% unit symbol \gram, \fe\\ \unit{\microd}{\kilogram}\ = \unit{1}{\milli\gram}\ (one
+% milligram), \textit{but not} \unit{\microd}{\kilogram}\ = \unit{1}{\micro\kilogram} ~(one
+% microkilogram).
+% \subsubsection{The `degree Celsius'} Except for the kilogram, any SI prefix may be used with any SI unit,
+% including the `degree Celsius' and its symbol \celsius, \fe \\
+% \unit{\millid}{\celsius}\ = \unit{1}{\milli\celsius}\ (one millidegree Celsius), \textit{or}
+% \unit{\megad}{\celsius}\ = \unit{1}{\mega\celsius}.
+% \section{Prefixes for binary multiples} In December 1998 the International
+% Electrotechnical Commission (IEC), the leading international organization for worldwide
+% standardization in electrotechnology, approved as an IEC International Standard names and
+% symbols for prefixes for binary multiples for use in the fields of data processing and
+% data transmission. The prefixes are as shown in table~\ref{table:bipre}.
+% \begin{table}[btp]
+% \caption{--- Prefixes for binary multiples ---}\label{table:bipre}
+% \begin{minipage}[]{\textwidth}\renewcommand{\thefootnote}{\textit{\alph{footnote}}}
+% \centering
+% \begin{tabular}{lllllll}\hline
+% \textbf{Factor} & \textbf{Name} & \textbf{Symbol} & \textbf{Origin}& & \multicolumn{2}{l}{\textbf{Derivation}}\\
+% \hline
+% \kibid & kibi & \kibi & kilobinary: & \power{(\power{2}{10})}{1} & kilo:& \power{(\kilod)}{1}\\
+% \mebid & mebi & \mebi & megabinary: & \power{(\power{2}{10})}{2} & mega:& \power{(\kilod)}{2}\\
+% \gibid & gibi & \gibi & gigabinary: & \power{(\power{2}{10})}{3} & giga:& \power{(\kilod)}{3}\\
+% \tebid & tebi & \tebi & terabinary: & \power{(\power{2}{10})}{4} & tera:& \power{(\kilod)}{4}\\
+% \pebid & pebi & \pebi & petabinary: & \power{(\power{2}{10})}{5} & peta:& \power{(\kilod)}{5}\\
+% \exbid & exbi & \exbi & exabinary: & \power{(\power{2}{10})}{6} & exa: & \power{(\kilod)}{6}\\
+% \end{tabular}
+% \end{minipage}
+% \end{table}
+% \begin{table}[btp]
+% \caption{--- Examples and comparisons with SI prefixes ---}\label{table:bipre2}
+% \begin{minipage}[]{\textwidth}\renewcommand{\thefootnote}{\textit{\alph{footnote}}}
+% \centering
+% \begin{tabular}{lllllll}\hline
+% one kibibit & \unit{1}{\kibi\bit } & = & \unit{\kibid}{\bit } & = & \unit{1\,024 }{\bit }\\
+% one kilobit & \unit{1}{\kilo\bit } & = & \unit{\kilod}{\bit } & = & \unit{1\,000 }{\bit }\\
+% one mebibyte & \unit{1}{\mebi\byte} & = & \unit{\mebid}{\byte} & = & \unit{1\,048\,576}{\byte}\\
+% one megabyte & \unit{1}{\mega\byte} & = & \unit{\megad}{\byte} & = & \unit{1\,000\,000}{\byte}\\
+% one gibibyte & \unit{1}{\gibi\byte} & = & \unit{\gibid}{\byte} & = & \unit{1\,073\,741\,824}{\byte}\\
+% one gigabyte & \unit{1}{\giga\byte} & = & \unit{\gigad}{\byte} & = & \unit{1\,000\,000\,000}{\byte}\\
+% \end{tabular}
+% \end{minipage}
+% \end{table}%
+% It is suggested that in English, the first syllable of the name of the binary-multiple
+% prefix should be pronounced in the same way as the first syllable of the name of the
+% corresponding SI prefix, and that the second syllable should be pronounced as ``bee".
+%
+%\subsubsection*{Note}
+%It is important to recognize that the new prefixes for binary multiples are \textit{not}
+%part of the International System of Units (SI), the modern metric system. However, for
+%ease of understanding and recall, they were derived from the SI prefixes for positive
+%powers of ten. As can be seen from the above table, the name of each new prefix is
+%derived from the name of the corresponding SI prefix by retaining the first two letters
+%of the name of the SI prefix and adding the letters ``\textrm{bi}", which recalls the word
+%``binary". Similarly, the symbol of each new prefix is derived from the symbol of the
+%corresponding SI prefix by adding the letter ``\textrm{i}", which again recalls the word
+%``binary". (For consistency with the other prefixes for binary multiples, the symbol
+%\kibi\ is used for \kibid\ rather than \textrm{ki}.)
+%\subsection{Official publication}
+%These prefixes for binary multiples, which were developed by IEC Technical Committee (TC)
+%25, Quantities and units, and their letter symbols, with the strong support of the
+%International Committee for Weights and Measures (CIPM) and the Institute of Electrical
+%and Electronics Engineers (IEEE), were adopted by the IEC as \textit{Amendment 2 to IEC
+%International Standard IEC 60027-2: Letter symbols to be used in electrical technology -
+%Part 2: Telecommunications and electronics}. The full content of \textit{Amendment 2},
+%which has a publication date of 1999-01, is reflected in the tables above and the
+%suggestion regarding pronunciation.
+%\changes{v0.99}{1999/07/28}{New binary prefixes support/documentation section added}
+%\subsection{The \texttt{binary.sty} style for binary prefixes and (non-SI) units}
+% The \texttt{binary.sty} style for binary prefixes and (non-SI) units can be loaded by using the option \opt{binary}, as in |\usepackage[binary]{SIunits}|. This unit should always
+% be used in conjunction with the \pkgname{SIunits}\ package.
+% \section{Units outside the SI}
+% Units that are outside the SI may be divided into three categories:
+% \begin{enumerate}
+% \item those units that are accepted for use with the SI;
+% \item those units that are temporarily accepted for use with the SI; and
+% \item those units that are not accepted for use with the SI and thus must strictly be avoided.
+% \end{enumerate}
+% \subsection{Units accepted for use with the SI}
+% The CIPM (1969) recognised that users of SI will also wish to employ with it certain units not part of it, but
+% which are important and are widely used. These units are given in table~\ref{table:accepted1}. The combination of
+% units of this table with SI units to form compound units should be restricted to special cases in order not
+% to lose the advantage of the coherence of SI units.\\
+% \begin{table}[btp]
+% \caption{--- Units accepted for use with the SI ---}\label{table:accepted1}
+% \begin{minipage}[]{\textwidth}\renewcommand{\thefootnote}{\textit{\alph{footnote}}}
+% \centering
+% \begin{tabular}{lll}\hline
+% \textbf{Name} & \textbf{Symbol} & \textbf{Value in SI units}\\ \hline
+% minute (time) & \minute & \unit{1}{\minute} = \unit{60}{\second} \\
+% hour & \hour & \unit{1}{\hour} = \unit{60}{\minute} = \unit{\intfmt{3600}}{\second} \\
+% day & \dday & \unit{1}{\dday} = \unit{24}{\hour} = \unit{\intfmt{86400}}{\second} \\
+% degree\footnotemark[1] & \degree & \unit{1}{\degree} = \unit{(\pi/180)}{\radian} \\
+% minute (plane angle) & \paminute & \unit{1}{\paminute} = \unit{(1/60)}{\degree} = \unit{(\pi/\intfmt{10800})}{\radian} \\
+% second (plane angle) & \pasecond & \unit{1}{\pasecond} = \unit{(1/60)}{\paminute} = \unit{(\pi/\intfmt{648000})}{\radian} \\
+% litre & \litre, \liter\footnotemark[2] & \unit{1}{\litre} = \unit{1}{\liter} = \unit{1}{\cubic{\deci\metre}} = \unit{\millid}{\cubic\metre} \\
+% tonne\footnotemark[3] & \tonne & \unit{1}{\ton} = \unit{\kilod}{\kilogram} \-\\
+% neper\footnotemark[4]\footnotemark[5] & \neper & \unit{1}{\neper} = \unit{1}{\one} \\
+% bel\footnotemark[6]\footnotemark[5] & \bel & \unit{1}{\bel} = \unit{(1/2)\ln 10}{(\neper)}\footnotemark[7]\\
+% \end{tabular}
+% \footnotetext[1]
+% {ISO 31 recommends that the degree be subdivided decimally rather than using the minute
+% and second.}
+% \footnotetext[2]
+% {The alternative symbol for the litre, \liter, was adopted by the CGPM in order to avoid
+% the risk of confusion between the letter l and the number \(1\). Thus, although both
+% \litre\ and \liter\ are internationally accepted symbols for the litre, to avoid this
+% risk the symbol to be used in the United States is \liter.}
+% \footnotetext[3]
+% {In some English-speaking countries this unit is called `metric ton'.}
+% \footnotetext[4]
+% {The neper is used to express values of such logarithmic quantities as field level, power
+% level, sound pressure level, and logarithmic decrement. Natural logarithms are used to
+% obtain the numerical values of quantities expressed in nepers. The neper is coherent with
+% the SI, but not yet adopted by the CGPM as an SI unit. For further information see
+% International Standard ISO 31.}
+% \footnotetext[5]
+% {The bel is used to express values of such logarithmic quantities as field level, power
+% level, sound pressure level, and attenuation. Logarithms to base ten are used to obtain
+% the numerical values of quantities expressed in bels. The submultiple decibel, \deci\bel,
+% is commonly used. For further information see International Standard ISO 31.}
+% \footnotetext[6]
+% {In using these units it is particularly important that the quantity be specified. The
+% unit must not be used to imply the quantity.}
+% \footnotetext[7]
+% {\neper\ is enclosed in parentheses because, although the neper is coherent with the SI,
+% it has not yet been adopted by the CGPM.}
+%
+%
+% \end{minipage}
+% \end{table}
+% It is likewise necessary to recognise, outside the International System, some other units that are useful in
+% specialised fields, because their values expressed in SI units must be obtained by experiment, and are therefore
+% not known exactly (table~\ref{table:accepted2}).
+% \begin{table}[btp]
+% \caption{--- Units accepted for use with the SI whose values in SI units are obtained experimentally ---}\label{table:accepted2}
+% \begin{minipage}[]{\textwidth}\renewcommand{\thefootnote}{\textit{\alph{footnote}}}
+% \centering
+% \begin{tabular}{llc}\hline
+% \textbf{Name} & \textbf{Symbol} & \textbf{Definition}\\ \hline
+% electronvolt & \electronvolt & \footnotemark[1] \\
+% unified atomic mass unit & \atomicmass & \footnotemark[2] \\
+% \end{tabular}
+% \footnotetext[1]
+% {The electronvolt is the kinetic energy acquired by an electron in passing through a
+% potential difference of \(1\) \volt\ in vacuum; \unit{1}{\electronvolt} =
+% \(\unit{\sci{\nmfmt{1.60217733}e-19}}{\joule}\) with a combined standard
+% uncertainty of \(\unit{\sci{\nmfmt{0.00000049}e-19}}{\joule}\).}
+% \footnotetext[2]
+% {The unified atomic mass unit is equal to \(1/12\) of the mass of an atom of the nuclide
+% \(^{12}\mathrm{C}\); \unit{1}{\atomicmass} =
+% \unit{\sci{\nmfmt{1.6605402}e-27}}{\kilogram} with a combined standard
+% uncertainty of \unit{\sci{\nmfmt{0.0000010}e-27}}{\kilogram}.}
+% \end{minipage}
+% \end{table}
+% \subsection{Units temporarily accepted for use with the SI}
+% Because of existing practice in certain fields or countries, in 1978 the CIPM considered that it was permissible
+% for the units given in table~\ref{table:temporarily} to continue to be used with the SI until the CIPM considers that
+% their use is no longer necessary. However, these units must not be introduced where they are not presently used.
+% \begin{table}[btp]
+% \caption{--- Units in use temporarily with the SI ---}\label{table:temporarily}
+% \begin{minipage}[]{\textwidth}\renewcommand{\thefootnote}{\textit{\alph{footnote}}}
+% \centering
+% \begin{tabular}{lll}\hline
+% \textbf{Name} & \textbf{Symbol} & \textbf{Value in SI units}\\ \hline
+% nautical mile\footnotemark[1] & \ & \unit{1}{nautical\ mile} = \unit{\intfmt{1852}}{\metre} \\
+% knot & \ & \unit{1}{nautical\ mile\ per\ hour} = \unit{(\intfmt{1852}/\intfmt{3600})}{\metre\per\second} \\
+% \aa ngstr\"{o}m & \angstrom & \unit{1}{\angstrom} = \unit{0.1}{\nano\metre} = \unit{\power{10}{-10}}{\metre} \\
+% are\footnotemark[2] & \are & \unit{1}{\are} = \unit{1}{\square{\deca\metre}} = \unit{\power{10}{2}}{\square\metre} \\
+% hectare\footnotemark[2] & \hectare & \unit{1}{\hectare} = \unit{1}{\square{\hecto\metre}} = \unit{\power{10}{4}}{\square\metre} \\
+% barn\footnotemark[3] & \barn & \unit{1}{\barn} = \unit{100}{\square{\femto\metre}} = \unit{\power{10}{-28}}{\square\metre} \\
+% bar\footnotemark[4] & \bbar & \unit{1}{\bbar} = \unit{0.1}{\mega\pascal} = \unit{\power{10}{5}}{\pascal} \\
+% gal\footnotemark[5] & \gal & \unit{1}{\gal} = \unit{1}{\centi\metre\per\second\squared} = \unit{\power{10}{-2}}{\metre\per\second\squared} \\
+% curie\footnotemark[6] & \curie & \unit{1}{\curie} = \(\unit{\sci{3.7e10}}{\becquerel}\) \\
+% roentgen\footnotemark[7] & \roentgen & \unit{1}{\roentgen} = \(\unit{\sci{2.58e-4}}{\coulomb\per\second}\) \\
+% rad\footnotemark[8] & \rad & \unit{1}{\rad} = \unit{1}{\centi\gray} = \unit{\power{10}{-2}}{\gray} \\
+% rem\footnotemark[9] & \rem & \unit{1}{\rem} = \unit{1}{\centi\sievert} = \unit{\power{10}{-2}}{\sievert} \\
+% \end{tabular}
+% \footnotetext[1]
+% {The nautical mile is a special unit employed for marine and aerial navigation to express
+% distances. The conventional value given above was adopted by the First International
+% Extraordinary Hydrographic Conference, Monaco, 1929, under the name ``International
+% nautical mile''.}
+% \footnotetext[2]
+% {This unit and its symbol were adopted by the CIPM in 1879 (BIPM Proc. Verb. Com. Int.
+% Poids et Mesures, 1879, p. 41) and are used to express agrarian areas.}
+% \footnotetext[3]
+% {The barn is a special unit employed in nuclear physics to express effective cross
+% sections.}
+% \footnotetext[4]
+% {This unit and its symbol are included in Resolution 7 of the 9th CGPM (1948).}
+% \footnotetext[5]
+% {The gal is a special unit employed in geodesy and geophysics to express the acceleration
+% due to gravity.}
+% \footnotetext[6]
+% {The curie is a special unit employed in nuclear physics to express activity of
+% radionuclides (12th CGPM (1964), Resolution 7).}
+% \footnotetext[7]
+% {The roentgen is a special unit employed to express exposure of x or \(\gamma\)
+% radiations.}
+% \footnotetext[8]
+% {The rad is a special unit employed to express absorbed dose of ionising radiations. When
+% there is risk of confusion with the symbol for radian, rd may be used as the symbol for
+% rad.}
+% \footnotetext[9]
+% {The rem is a special unit used in radioprotection to express dose equivalent.}
+%
+% \end{minipage}
+% \end{table}
+%
+% \section{Last notes about correct usage of the SI}
+% The following points underline some of the important aspects about using SI units and their
+% symbols, and also mention some of the common errors that are made. The SI differs from some
+% of the older systems in that it has \textit{definite} rules governing the way the units and
+% symbols are used.
+% \begin{itemize}
+% \item The unit of measure is the \textit{`metre'}, not \textit{`meter'}. The latter is a device used
+% for measuring things. (Unless you live in the USA - in which case you will just have to live
+% with the ambiguity.) \item Using a comma to separate groups of three digits is not
+% recommended - a (thin) space is preferable, since many countries use the comma as the decimal point
+% marker. Both the USA and UK use the `dot on the line' (full stop). So the following would be
+% correct: \nmfmt{1234555.678990}. \item The term \textbf{billion} should be avoided since in
+% most countries outside the USA (including the UK) it means a million-million (prefix tera),
+% whereas in the USA it means a thousand million (prefix giga). Likewise the term \textbf{trillion}
+% means million-million-million (prefix exa) in most countries outside the USA.
+% \item The `litre' (`liter' in the US) is one of those units which is approved by the CGPM for
+% use with the metric system. The official unit of volume in the SI is the cubic metre.
+% However, since this is not convenient for much day-to-day use the CGPM has approved the use
+% of the `other unit', the litre. The litre represents a cubic decimetre and you may use
+% either the symbol `\litre' or `\liter'\footnote{Recommended symbol for the `liter' in the USA} (small
+% or capital `ell') to represent it. They do not approve using any prefixes other than milli
+% or micro with it. It was originally defined as the volume occupied by \unit{1}{\kilogram}\ of water.
+% Subsequently it was found that this was not precisely 1 cubic decimetre, so the term litre
+% was withdrawn. Later it was re-introduced officially as 1 cubic decimetre exactly. So,
+% \unit{1}{\litre} = \unit{1}{\cubic{\deci\metre}} = \unit{1}{\liter}.
+% \end{itemize}
+%
+% \section{How to use the package}
+%
+% \subsection{Loading}
+% Most features are controlled by package options that can be selected
+% when the package is loaded (e.\,g |\usepackage|\oarg{options}|{SIunits}|) or at
+% `runtime' as an optional argument(list) to the |\SIunits| command
+% (e.\,g. \cmd{\SIunits}\oarg{options}).
+%
+% \begin{verbatim}
+% \documentclass[]{article}
+%
+% \usepackage[options]{SIunits}
+%
+% \begin{document}
+% ...
+% \SIunits[options]
+% ...
+% \end{document}
+% \end{verbatim}
+%
+%
+% \subsection{The package options}\label{sec:options}
+% \changes{v0.02 Beta 2}{1998/09/10}{Code documentation corrections}
+% The options can be grouped in the following categories:
+% \begin{enumerate}
+% \item unit spacing;
+% \item quantity-unit spacing;
+% \item conflicts;
+% \item textstyle;
+% \item miscellaneous.
+% \end{enumerate}
+% \subsubsection{Unit spacing options}
+% \begin{labeling}{\hspace{12mm}}
+% \item[\opt{cdot}]
+% This mode provides the use of \cmd{\cdot} as spacing in units.
+% \item[\opt{thickspace}]
+% This mode provides the use of \cmd{\;} (thick math space) as spacing in units.
+% \item[\opt{mediumspace}]
+% This mode provides the use of \cmd{\:} (medium math space) as spacing in units.
+% \item[\opt{thinspace}]
+% This mode provides the use of \cmd{\,} (thin math space) as spacing in units.
+% \end{labeling}
+% \subsubsection{Quantity-unit spacing options}
+% \begin{labeling}{\hspace{12mm}}
+% \item[\opt{thickqspace}]
+% This mode provides the use of \cmd{\;} (thick math space) as spacing between numerical quantities and units.
+% \item[\opt{mediumqspace}]
+% This mode provides the use of \cmd{\:} (medium math space) as spacing between numerical quantities and units.
+% \item[\opt{thinqspace}]
+% This mode provides the use of \cmd{\,} (thin math space) as spacing between numerical quantities and units.
+% \end{labeling}
+% \subsubsection{Options to prevent conflicts}
+% \subsubsection*{Conflicts with the \texttt{amssymb} package}
+% In the |amssymb| package the command |\square| is defined. This will cause error messages
+% when the |amssymb| package is used in combination with the \pkgname{SIunits}\ package. To prevent
+% errors one can choose two different options:
+% \begin{labeling}{\hspace{15mm}}
+% \item[\opt{amssymb}]This option redefines the \texttt{amssymb} command |\square| to get the desired
+% \pkgname{SIunits}\ definition of the command.\\ \textbf{Note: }When using this option, the \texttt{amssymb} command
+% |\square| can \textbf{not} be used.
+% \item[\opt{squaren}]This option defines a new command |\squaren| that can be used instead of the
+% \pkgname{SIunits}\ command |\square|.\\ \textbf{Note: }When using this option, the \texttt{amssymb} definition for
+% |\square| is used.
+% \end{labeling}
+% \changes{v0.06 Beta 2}{1998/04/07}{amssymb conflicts section added to documentation}
+% \subsubsection*{Conflicts with the \texttt{pstricks} package}
+% In the |pstricks| package the command |\gray| is defined. This will cause error messages
+% when the |pstricks| package is used in combination with the \pkgname{SIunits}\ package. To prevent
+% errors one can choose two different options:
+% \changes{v0.99}{1999/10/29}{pstricks conflicts section added to documentation}
+% \begin{labeling}{\hspace{15mm}}
+% \item[\opt{pstricks}]This option redefines the \texttt{pstricks} command |\gray| to get the desired
+% \pkgname{SIunits}\ definition of the command.\\ \textbf{Note: }When using this option, the \texttt{pstricks} command
+% |\gray| can \textbf{not} be used.
+% \item[\opt{Gray}]This option defines a new command |\Gray| that can be used instead of the
+% \pkgname{SIunits}\ command |\gray|.\\ \textbf{Note: }When using this option, the \texttt{pstricks} definition for
+% |\gray| is used.
+% \end{labeling}
+% \subsubsection*{Conflicts with the \texttt{babel} package in combination with the \opt{italian} language}
+% In the |babel| package, when using the italian language, the command |\unit| is defined. This will prevent \pkgname{SIunits}\ from functioning.
+% To prevent this, choose the option:
+% \begin{labeling}{\hspace{15mm}}
+% \item[\opt{italian}]This option defines a new command |\unita| (italian for unit) that can be used instead of the
+% \pkgname{SIunits}\ command |\unit|.\\ \textbf{Note: }When using this option, the \texttt{babel} definition for
+% |\unit| is used.
+% \end{labeling}
+% \subsubsection{textstyle}
+% \begin{labeling}{\hspace{12mm}}
+% \item[\opt{textstyle}]
+% When using the option \opt{textstyle} units are printed in the typeface of the
+% enclosing text, automatically.
+% \end{labeling}
+% \subsubsection{miscellaneous}
+% \begin{labeling}{\hspace{12mm}}
+% \item[\opt{binary}]
+% This option loads the file \texttt{binary.sty}, which defines prefixes for binary multiples.
+% \item[\opt{noams}]
+% This option redefines the \cmd{\micro} command; use it when you don't have the AMS font, eurm10.
+% \item[\opt{derivedinbase}]
+% This mode provides the ready-to-use expressions of SI derived units in SI base units,
+% e.\,g. \verb=\pascalbase= to get `\pascalbase'.
+% \item[\opt{derived}]
+% This mode provides the ready-to-use expressions of SI derived units in SI derived units,
+% e.\,g. \verb=\derpascal= to get `\derpascal'.
+% \end{labeling}
+% \changes{v0.02 Beta 2}{1998/09/10}{Spacing examples table added}
+% \changes{v0.03 Beta 2}{1998/10/30}{Spacing examples table update}
+% See table~\ref{table:spacing} for examples of the spacing options.
+% \begin{table}[btp]
+% \caption{--- Spacing options ---}\label{table:spacing}
+% \begin{minipage}[]{\textwidth}\renewcommand{\thefootnote}{\textit{\alph{footnote}}}
+% \centering
+% \begin{tabular}{lll}\hline
+% \textbf{Option} & \textbf{Example}\\ \hline
+% \opt{cdot} &\(\newton\cdot\metre\)\\
+% \opt{thickspace}& \(\newton\;\metre\)\\
+% \opt{mediumspace}&\(\newton\:\metre\)\\
+% \opt{thinspace}&\(\newton\,\metre\)\\
+% \opt{thickqspace}& \(10\;\newton\;\metre\)\\
+% \opt{mediumqspace}&\(10\:\newton\;\metre\)\\
+% \opt{thinqspace}&\(10\,\newton\;\metre\)\\
+% \end{tabular}
+% \end{minipage}
+% \end{table}
+% \changes{v0.02 Beta 6}{1998/09/24}{Inconsistencies removed in documentation}
+% \normalsize
+% \section*{Command Reference}
+% \subsection{How to compose units in your text.}
+% The purpose of the \pkgname{SIunits}\ package is: to give an author an intuitive system for writing
+% units.
+% Just type (in \LaTeX-kind commands) what you would say: |\kilogram| or |\kelvin| to get
+% `\kilogram' or `\kelvin'.
+%
+%
+% To use the prefixes with SI units simply place them before the unit, e.\,g. |\milli\ampere|,
+% |\deca\metre| (or |\deka\meter|) or |\mega\ohm| to get: `\milli\ampere', `\deca\metre' or `\mega\ohm'.
+% Decimal values of the prefixes can be made by adding |d| behind the prefix command. See command reference on page~\pageref{commandreference}.
+% \begin{table}[p]
+% \label{commandreference}
+% \centering
+% \begin{tabular}{lr@{\ \vline\ }lr@{\ \vline\ }lr}
+% \multicolumn{6}{c}{\textbf{SI base units}}\\ \hline
+% |\metre| & \metre & |\second| & \second & |\mole| & \mole \\
+% |\meter| & \meter & |\ampere| & \ampere & |\candela| & \candela \\
+% |\kilogram| & \kilogram & |\kelvin| & \kelvin \\ \hline \\
+% \multicolumn{6}{c}{\textbf{SI derived units}}\\ \hline
+% |\hertz| & \hertz & |\farad| & \farad & |\degreecelsius| & \degreecelsius \\
+% |\newton| & \newton & |\ohm| & \ohm & |\lumen| & \lumen \\
+% |\pascal| & \pascal & |\siemens| & \siemens & |\lux| & \lux \\
+% |\joule| & \joule & |\weber| & \weber & |\becquerel| & \becquerel \\
+% |\watt| & \watt & |\tesla| & \tesla & |\gray| & \gray \\
+% |\coulomb| & \coulomb & |\henry| & \henry & |\sievert| & \sievert \\
+% |\volt| & \volt & |\celsius| & \celsius \\ \hline \\
+% \multicolumn{6}{c}{\textbf{Units outside of SI}}\\ \hline
+% |\angstrom| & \angstrom & |\dday| & \dday & |\minute| & \minute \\
+% |\arcminute| & \arcminute & |\degree| & \degree & |\neper| & \neper \\
+% |\arcsecond| & \arcsecond & |\electronvolt| & \electronvolt & |\rad| & \rad \\
+% |\are| & \are & |\gal| & \gal & |\rem| & \rem \\
+% |\atomicmass| & \atomicmass & |\gram| & \gram & |\roentgen| & \roentgen \\
+% |\barn| & \barn & |\hectare| & \hectare & |\rperminute| & \rperminute \\
+% |\bbar| & \bbar & |\hour| & \hour & |\tonne| & \tonne \\
+% |\bel| & \bel & |\liter| & \liter & |\ton| & \ton \\
+% |\curie| & \curie & |\litre| & \litre \\ \hline \\
+% \multicolumn{6}{c}{\textbf{SI Prefixes}}\\ \hline
+% |\yocto| & \yocto & |\milli| & \milli & |\mega| & \mega \\
+% |\zepto| & \zepto & |\centi| & \centi & |\giga| & \giga \\
+% |\atto| & \atto & |\deci| & \deci & |\tera| & \tera \\
+% |\femto| & \femto & |\deca| & \deca & |\peta| & \peta \\
+% |\pico| & \pico & |\deka| & \deca & |\exa| & \exa \\
+% |\nano| & \nano & |\hecto| & \hecto & |\zetta| & \zetta \\
+% |\micro| & \micro & |\kilo| & \kilo & |\yotta| & \yotta \\ \hline \\
+% \multicolumn{6}{c}{\textbf{Decimal values of SI Prefixes}}\\ \hline
+% |\yoctod| & \yoctod & |\millid| & \millid & |\megad| & \megad \\
+% |\zeptod| & \zeptod & |\centid| & \centid & |\gigad| & \gigad \\
+% |\attod| & \attod & |\decid| & \decid & |\terad| & \terad \\
+% |\femtod| & \femtod & |\decad| & \decad & |\petad| & \petad \\
+% |\picod| & \picod & |\dekad| & \dekad & |\exad| & \exad \\
+% |\nanod| & \nanod & |\hectod| & \hectod & |\zettad| & \zettad \\
+% |\microd| & \microd & |\kilod| & \kilod & |\yottad| & \yottad \\
+% \end{tabular}
+% \end{table}
+% \subsubsection{Division or multiplication of SI units}
+% The next step is the formation of units based on division and/or multiplication of SI units.
+% \paragraph{Division}
+% How to get the unit of speed?
+% \begin{enumerate}
+% \item Write down the unit in words: |metre per second|
+% \item Replace the spaces with backlashes to get the command: |\metre\per\second|
+% \item The result is: `\metre\per\second'.
+% \end{enumerate}
+% Simple! Ready!
+% \paragraph{Multiplication}
+% Now an example of multiplication of units, the unit of torque (newton metre):
+% \begin{enumerate}
+% \item Write down the unit in words: |newton metre|
+% \item To get an separation character between the two units use the command \cmd{\usk} (unitskip): |\newton\usk\metre|
+% \item The result is: `\joenit{\newton.\metre}'. The spacing between the units depends on the spacing
+% options (see: page \pageref{sec:options}).
+% \end{enumerate}
+% \paragraph{Mixed case}
+% The mixed case should be simple now; the unit of thermal conductivity (watt per metre kelvin):
+% \begin{enumerate}
+% \item Use your just-learned-knowledge:|\watt\per\metre\usk\kelvin|
+% \item The result is: `\wattpermetrekelvin'.
+% \end{enumerate}
+% Now, you can do it all in one step! Intuitive \& simple.
+%
+% \subsubsection{Raising SI units to a power}
+% The \pkgname{SIunits}\ package provides a set of functions to get units raised to a particular power.
+% \paragraph{Squaring and cubing}
+% How to get the units of area (square metre) and volume (cubic metre)?
+% \begin{enumerate}
+% \item Write down the unit in words: |square metre| and |cubic metre|
+% \item Replace the spaces with backlashes to get the commands: |\square\metre| and |\cubic\metre|
+% \item The result is: ` \square\metre' and `\cubic\metre'.
+% \end{enumerate}
+% I can hear you say: ``We only use the word `square' before the unit metre, normally we place
+% the word `squared' behind the unit name.''. OK, lets try: |\second\squared| and
+% |\second\cubed| gives: `\second\squared' and `\second\cubed'.
+% Thus, no problem.
+% \paragraph{The reciprocal, reciprocal squaring and - cubing}
+% How to get negative powers?
+% \begin{enumerate}
+% \item Use |\rpsquare| or |\rpsquared|, and |\rpcubic| and |\rpcubed|
+% \item \Fe |\rpsquare\metre| and |\second\rpcubed|
+% \item The result is: ` \rpsquare\metre' and `\second\rpcubed'.
+% \end{enumerate}
+% Normally, we leave out the exponent \(1\), but sometimes we want to use the exponent \(-1\).
+% How to form the unit of frequency (reciprocal second = \hertz)
+% \begin{enumerate}
+% \item Write down the unit in words: |reciprocal second|,
+% \item Replace the spaces with backlashes to get the commands: |\reciprocal\second|,
+% \item The result is: `\reciprocal\second'.
+% \end{enumerate}
+% \paragraph{The power function}
+% The \cmd{\power} macro has been added to be able to form the wildest types of power raising:
+% |\power{10}{35}| gives: \power{10}{35}.
+%
+% \subsection{Quantities and units}
+% Use the command \cmd{\unit} to get consistent spacing between numerical quantities and units. Usage:\\
+% |\unit{120}{\kilo\meter\per\hour}| gives: \unit{120}{\kilo\meter\per\hour}.
+% \changes{v0.03 Beta 2}{1998/10/30}{documentation update}
+%
+% \subsubsection{Ready-to-use units}
+% {\begin{tabbing} \label{commands:prefab}
+% \changes{v0.05 Beta 1}{1999/02/01}{Inconsistencies in Ready-to-use units corrected}
+% \hspace{0.5cm}\= \textbf{xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx}\hspace{1cm} \= \textbf{xxxxx}\kill \+
+% \\ |\amperemetresecond| \> \amperemetresecond
+% \\ |\amperepermetre | \> \amperepermetre
+% \\ |\amperepermetrenp | \> \amperepermetrenp
+% \\ |\amperepersquaremetre| \> \amperepersquaremetre
+% \\ |\amperepersquaremetrenp| \> \amperepersquaremetrenp
+% \\ |\candelapersquaremetre | \> \candelapersquaremetre
+% \\ |\candelapersquaremetrenp | \> \candelapersquaremetrenp
+% \\ |\coulombpercubicmetre| \> \coulombpercubicmetre
+% \\ |\coulombpercubicmetrenp| \> \coulombpercubicmetrenp
+% \\ |\coulombperkilogram | \> \coulombperkilogram
+% \\ |\coulombperkilogramnp | \> \coulombperkilogramnp
+% \\ |\coulombpermol | \> \coulombpermol
+% \\ |\coulombpermolnp| \> \coulombpermolnp
+% \\ |\coulombpersquaremetre| \> \coulombpersquaremetre
+% \\ |\coulombpersquaremetrenp| \> \coulombpersquaremetrenp
+% \\ |\cubicmetre| \> \cubicmetre
+% \\ |\faradpermetre | \> \faradpermetre
+% \\ |\faradpermetrenp | \> \faradpermetrenp
+% \\ |\graypersecond| \> \graypersecond
+% \\ |\graypersecondnp| \> \graypersecondnp
+% \\ |\henrypermetre | \> \henrypermetre
+% \\ |\henrypermetrenp | \> \henrypermetrenp
+% \\ |\jouleperkelvin | \> \jouleperkelvin
+% \\ |\jouleperkelvinnp | \> \jouleperkelvinnp
+% \\ |\jouleperkilogram | \> \jouleperkilogram
+% \\ |\jouleperkilogramnp | \> \jouleperkilogramnp
+% \\ |\joulepermole|\> \joulepermole
+% \\ |\joulepermolenp|\> \joulepermolenp
+% \\ |\joulepermolekelvin | \> \joulepermolekelvin
+% \\ |\joulepermolekelvinnp | \> \joulepermolekelvinnp
+% \\ |\joulepersquaremetre | \> \joulepersquaremetre
+% \\ |\joulepersquaremetrenp | \> \joulepersquaremetrenp
+% \\ |\joulepertesla | \> \joulepertesla
+% \\ |\jouleperteslanp | \> \jouleperteslanp
+% \\ |\kilogrammetrepersecond | \> \kilogrammetrepersecond
+% \\ |\kilogrammetrepersecondnp | \> \kilogrammetrepersecondnp
+% \\ |\kilogrammetrepersquaresecond | \> \kilogrammetrepersquaresecond
+% \\ |\kilogrammetrepersquaresecondnp| \> \kilogrammetrepersquaresecondnp
+% \\ |\kilogrampercubicmetre| \> \kilogrampercubicmetre
+% \\ |\kilogrampercubicmetrenp| \> \kilogrampercubicmetrenp
+% \\ |\kilogramperkilomole | \> \kilogramperkilomole
+% \\ |\kilogramperkilomolenp| \> \kilogramperkilomolenp
+% \\ |\kilogrampermetre | \> \kilogrampermetre
+% \\ |\kilogrampermetrenp | \> \kilogrampermetrenp
+% \\ |\kilogrampersecond | \> \kilogrampersecond
+% \\ |\kilogrampersecondnp| \> \kilogrampersecondnp
+% \\ |\kilogrampersquaremetre | \> \kilogrampersquaremetre
+% \\ |\kilogrampersquaremetrenp| \> \kilogrampersquaremetrenp
+% \\ |\kilogrampersquaremetresecond | \> \kilogrampersquaremetresecond
+% \\ |\kilogrampersquaremetresecondnp| \> \kilogrampersquaremetresecondnp
+% \\ |\kilogramsquaremetre | \> \kilogramsquaremetre
+% \\ |\kilogramsquaremetrenp| \> \kilogramsquaremetrenp
+% \\ |\kilogramsquaremetrepersecond| \> \kilogramsquaremetrepersecond
+% \\ |\kilogramsquaremetrepersecondnp| \> \kilogramsquaremetrepersecondnp
+% \\ |\kilowatthour| \> \kilowatthour
+% \\ |\metrepersquaresecond| \>\metrepersquaresecond
+% \\ |\metrepersquaresecondnp| \>\metrepersquaresecondnp
+% \\ |\molepercubicmetre| \> \molepercubicmetre
+% \\ |\molepercubicmetrenp| \> \molepercubicmetrenp
+% \\ |\newtonpercubicmetre | \> \newtonpercubicmetre
+% \\ |\newtonpercubicmetrenp | \> \newtonpercubicmetrenp
+% \\ |\newtonperkilogram | \> \newtonperkilogram
+% \\ |\newtonperkilogramnp | \> \newtonperkilogramnp
+% \\ |\newtonpersquaremetre | \> \newtonpersquaremetre
+% \\ |\newtonpersquaremetrenp| \> \newtonpersquaremetrenp
+% \\ |\ohmmetre | \> \ohmmetre
+% \\ |\pascalsecond| \> \pascalsecond
+% \\ |\persquaremetresecond | \> \persquaremetresecond
+% \\ |\persquaremetresecondnp| \> \persquaremetresecondnp
+% \\ |\radianpersecond| \> \radianpersecond
+% \\ |\radianpersecondnp| \> \radianpersecondnp
+% \\ |\radianpersquaresecond| \> \radianpersquaresecond
+% \\ |\radianpersquaresecondnp| \> \radianpersquaresecondnp
+% \\ |\squaremetre| \> \squaremetre
+% \\ |\squaremetrepercubicmetre| \> \squaremetrepercubicmetre
+% \\ |\squaremetrepercubicmetrenp| \> \squaremetrepercubicmetrenp
+% \\ |\squaremetrepernewtonsecond| \> \squaremetrepernewtonsecond
+% \\ |\squaremetrepernewtonsecondnp| \> \squaremetrepernewtonsecondnp
+% \\ |\squaremetrepersecond | \> \squaremetrepersecond
+% \\ |\squaremetrepersecondnp | \> \squaremetrepersecondnp
+% \\ |\squaremetrepersquaresecond | \> \squaremetrepersquaresecond
+% \\ |\squaremetrepersquaresecondnp | \> \squaremetrepersquaresecondnp
+% \\ |\voltpermetre| \> \voltpermetre
+% \\ |\voltpermetrenp| \> \voltpermetrenp
+% \\ |\wattpercubicmetre | \> \wattpercubicmetre
+% \\ |\wattpercubicmetrenp| \> \wattpercubicmetrenp
+% \\ |\wattperkilogram| \> \wattperkilogram
+% \\ |\wattperkilogramnp| \> \wattperkilogramnp
+% \\ |\wattpersquaremetre | \> \wattpersquaremetre
+% \\ |\wattpersquaremetrenp | \> \wattpersquaremetrenp
+% \\ |\wattpersquaremetresteradian | \> \wattpersquaremetresteradian
+% \\ |\wattpersquaremetresteradiannp | \> \wattpersquaremetresteradiannp
+% \end{tabbing}}
+%
+% \section{How the package works}
+% \subsection{Compatibility}
+% The package has been tested using:
+% \begin{enumerate}
+% \item MiK\TeX\ 1.10\textit{b}, including \LaTeXe\ standard classes (\LaTeXe{} [1997/12/01] patch level 1)
+% and \TeX\ 3.14159, both under Microsoft Windows 95 and MS Windows NT 4.0.
+% \item MiK\TeX\ 1.11, including \LaTeXe\ standard classes (\LaTeXe{} [1998/06/01])
+% and \TeX\ 3.14159, both under Microsoft Windows 95 and MS Windows NT 4.0.
+% \item MiK\TeX\ 2 UP 1, including \LaTeXe\ standard classes (\LaTeXe{} [2000/11/28])
+% and \TeX\ 3.14159, under Microsoft Windows 2000 professional.
+% \end{enumerate}
+% \subsection{Known problems and limitations}
+% \begin{enumerate}
+% \item When you don't have the AMS font |eurm10| use the option \opt{noams}.
+% \item The amssymb package defines the |\square| command. Two possible solutions to avoid
+% conflicts:
+% \begin{itemize}
+% \item Use option \opt{amssymb}: |\usepackage[amssymb]{SIunits}|.
+% When using this option the amssymb command |\square| is redefined to the SIunits command.
+% \item Use option \opt{squaren}: |\usepackage[squaren]{SIunits}|.
+% When using this option the amssymb command |\square| is not redefined. Use the newly defined SIunits command
+% |\squaren| instead of |\square| to get the desired behaviour.
+% \end{itemize}
+% \textbf{Note: }Load \pkgname{SIunits}\ package after \texttt{amssymb} package.
+% \item The pstricks package defines the |\gray| command. Two possible solutions to avoid
+% conflicts:
+% \begin{itemize}
+% \item Use option \opt{pstricks}: |\usepackage[pstricks]{SIunits}|.
+% When using this option the pstricks command |\gray| is redefined to the SIunits command.
+% \item Use option \opt{Gray}: |\usepackage[Gray]{SIunits}|.
+% When using this option the pstricks command |\gray| is not redefined. Use the newly defined SIunits command
+% |\Gray| instead of |\gray| to get the desired behaviour.
+% \end{itemize}
+% \textbf{Note: }Load \pkgname{SIunits}\ package after \texttt{pstricks} package.
+% \end{enumerate}
+% No further known problems or limitations. That doesn't mean this package is bug free, but it
+% indicates the lack of testing that's been done on the package.
+%
+% \subsection{Sending a bug report}
+% Reports of new bugs in the package are most welcome.
+% However, I do \textbf{not} consider this to be a `supported'
+% package. This means that there is no guarantee I (or
+% anyone else) will put any effort into fixing the bug (of course I will try to find some time).
+% But, on the other hand, someone may try debugging, so filing a
+% bug report is always a good thing to do! (If nothing else,
+% your discoveries may end up in future releases of this
+% document.) Before filing a bug report, please take the
+% following actions:
+% \begin{enumerate}
+% \item Ensure your problem is not due to your input file;
+% \item Ensure your problem is not due to your own
+% package(s) or class(es);
+% \item Ensure your problem is not covered in the section ``Known
+% problems and limitations'' above;
+% \item Try to locate the problem by writing a minimal
+% \LaTeXe\ input file which reproduces the problem. Include the command\\
+% |\setcounter{errorcontextlines}{999}|\\ in your input;
+% \item Run your file through \LaTeXe;
+% \item Send a description of your problem, the input file and the
+% log file via e-mail to: \texttt{SIunits@webschool.nl}.
+% \end{enumerate}
+%
+% \section{In conclusion}
+% \subsection{Acknowledgements}
+% I want to thank \textsf{Werenfried Spit} (|w.spit@WITBO.NL|)
+% answering my question to |TEX-NL@NIC.SURFNET.NL| about the ``power functie'',
+% as well as \textsf{Hans Hagen} (|pragma@WXS.NL|) for
+% the kind reaction to that question.
+% \changes{v0.02 Final Release}{1998/10/09}{Acknowledgements updated}
+% \begin{labeling}{\hspace{12mm}}
+% \item[\opt{v0.01}: Typos]
+% J\"{u}rgen von Haegen (\texttt{vonHagen@engr.psu.edu})
+% \item[\opt{v0.02 Beta 1}: \cmd{\addunit} macro added]
+% Hint: Hans Bessem\\ (\texttt{j.m.bessem@wbmt.tudelft.nl})
+% \item[\opt{v0.02 Beta 4}: Typos]
+% Rafael Rodriguez Pappalardo (\texttt{rafapa@cica.es})
+% \item[\opt{v0.02 Beta 5}: Tips/non-SI units]
+% Timothy C. Burt\\ (\texttt{tcburt@comp.uark.edu})
+% \item[\opt{v0.02 Beta 7}: \cmd{\angstrom} definition changed]
+% Hint: Lutz Schwalowsky\\ (\texttt{schalow@mineralogie.uni-hamburg.de});
+% Solution: Piet van Oostrum (\texttt{piet@cs.uu.nl})
+% \item[\opt{v0.04}: \cmd{\ohm} definition corrected]
+% J\"{u}rgen von Haegen (\texttt{vonHagen@engr.psu.edu})
+% \item[\opt{v0.06}: Conflict with \texttt{amssymb} solved] thanks to
+% Timothy C. Burt\\ (\texttt{tcburt@comp.uark.edu})
+% \end{labeling}
+%
+% \subsection{References}
+% \begin{enumerate}
+% \item \textsf{National Institute of Standards and Technology Special Publication 330},\ \textit{The International System of Units (SI), 1991 Edition}, by Barry~N.~Taylor, 62 p.:
+% |http://physics.nist.gov/Document/sp330.pdf|
+% \item \textsf{National Institute of Standards and Technology Special Publication 811},\ \textit{Guide for the Use of the International System of Units (SI), 1995 Edition}, by Barry~N.~Taylor, 84 p.:
+% |http://physics.nist.gov/Document/sp811.pdf|
+% \item \textsf{National Institute of Standards and Technology},\ \textit{Diagram of SI unit relationships:}
+% |http://physics.nist.gov/cuu/Units/SIdiagram2.html|
+% \item \textsf{International Bureau of Weights and Measures (\textit{Bureau International des
+% Poids et Mesures})},\ \textit{SI brochure:}
+% |http://www.bipm.fr/pdf/si-brochure.pdf| and \textit{Supplement 2000:}
+% |http://www.bipm.fr/pdf/si-supplement2000.pdf|
+% \item \textsf{National Physical Laboratory},
+% \textit{The International System of Units:} \\ |http://www.npl.co.uk/npl/reference/si_units.html|
+% \item \textsf{National Institute of Standards and Technology}, \\
+% \textit{The NIST reference on Constants, Units and Uncertainty:} \\
+% |http://physics.nist.gov/cuu/Units/introduction.html|
+% \item \textsf{David Barlett},
+% \textit{The Metric System: a concise reference guide:} \\ |http://subnet.virtual-pc.com/ba424872/|
+% \end{enumerate}
+% \StopEventually{}
+%
+% \section{The Magic Code}
+% \subsection{Hello world}
+% \iffalse
+%<*package>
+% \fi
+% First, we show the package message.
+% \begin{macrocode}
+\typeout{\packagemessage}
+% \end{macrocode}
+% \subsubsection{Declare globals}
+% Declare global |\newif|(s) and |\newlength|(s):\\
+% boolean for redefinition of |\square|
+% \begin{macrocode}
+\newif\if@redefsquare\@redefsquarefalse
+% \end{macrocode}
+% boolean for definition of |\squaren|
+% \begin{macrocode}
+\newif\if@defsquaren\@defsquarenfalse
+% \end{macrocode}
+% boolean for redefinition of |\gray|
+% \begin{macrocode}
+\newif\if@redefGray\@redefGrayfalse
+% \end{macrocode}
+% boolean for definition of |\Gray|
+% \begin{macrocode}
+\newif\if@defGray\@defGrayfalse
+% \end{macrocode}
+% boolean for detection of textstyle option
+% \begin{macrocode}
+\newif\if@textstyle\@textstylefalse
+% \end{macrocode}
+% boolean for detection of binary option
+% \begin{macrocode}
+\newif\if@optionbinary\@optionbinaryfalse
+% \end{macrocode}
+% boolean for detection of NoAMS option
+% \begin{macrocode}
+\newif\if@optionNoAMS\@optionNoAMSfalse
+% \end{macrocode}
+% boolean for detection of |\unit| command
+% \begin{macrocode}
+\newif\if@inunitcommand\@inunitcommandfalse
+\newlength{\@qskwidth}
+% \end{macrocode}
+% boolean for detection of italian option
+% \begin{macrocode}
+\newif\if@defitalian\@defitalianfalse
+% \end{macrocode}
+% \subsubsection{Font handling}
+% \changes{v0.99}{1999/07/23}{Font handling enhanced.}
+% When using the option \opt{textstyle} units are printed in the typeface of the
+% enclosing text, automatically.
+% \begin{macrocode}
+\DeclareRobustCommand\SI@fstyle[1]{\mathrm{#1}}
+% \end{macrocode}
+% \subsubsection{The text sensitive \protect\SImu}
+% Ripped form the |textcomp| package: the text sensitive --- but ugly --- \SImu\textbf{ \SImu}\textsf{\SImu}\textit{\SImu}.
+% \begin{macrocode}
+\DeclareTextSymbolDefault{\SImu}{TS1}
+\DeclareTextSymbol{\SImu}{TS1}{181} % micro sign
+\DeclareFontEncoding{TS1}{}{}
+\DeclareFontSubstitution{TS1}{cmr}{m}{n}
+% \end{macrocode}
+%
+% \subsubsection{The upright (roman) \ensuremath{\upmu}}
+% The next lines of code are necessary to get an beautifull upright (roman) \(\upmu\) (Greek `em').
+% \begin{macrocode}
+\DeclareFontFamily{OML}{eur}{\skewchar\font127} \DeclareFontShape{OML}{eur}{m}{n}{<5> <6>
+ <7> <8> <9> gen * eurm <10><10.95><12><14.4><17.28><20.74><24.88>eurm10}{}
+\DeclareSymbolFont{greek}{OML}{eur}{m}{n}
+% \end{macrocode}
+% \begin{macro}{\upmu}
+% \begin{macrocode}
+\DeclareMathSymbol{\upmu}{\mathord}{greek}{"16}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\SIunits}
+% The |\SIunits| macro allows runtime option requests. Every argument of
+% the optional argument list is passed to the macro |\SIunits@execopt|.
+% The options \opt{thickspace \& thickqspace} is selected by default.
+%
+% \begin{macrocode}
+\newcommand*\SIunits[1][thickspace,thickqspace]{\@for\SIunits@@:=#1%
+ \do{\SIunits@execopt\SIunits@@}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\SIunits@execopt}
+% Every execution of this macro with an argument \(n\) leads to the
+% execution of a macro |\SIunits@opt@|\(n\) or a warning if no such exists.
+%
+% \begin{macrocode}
+\newcommand*\SIunits@execopt[1]{\@ifundefined{SIunits@opt@#1}%
+ {\PackageWarning{SIunits}{Requested option `#1' not provided}}%
+ {\@nameuse{SIunits@opt@#1}}}
+% \end{macrocode}
+% \end{macro}
+%
+% \subsection{Runtime options to use with the \cs{SIunits} command}
+% \subsubsection{\opt{thickspace}}
+% \begin{macro}{\SIunits@opt@thickspace}
+% This macro provides a thick math space (|\;|) between units.
+% \begin{macrocode}
+\newcommand*\SIunits@opt@thickspace{%
+ \@thickspace{runtime option `thickspace' provided!}}
+% \end{macrocode}
+% \end{macro}
+% \subsubsection{\opt{mediumspace}}
+% \begin{macro}{\SIunits@opt@mediumspace}
+% This macro provides a medium math space (|\:|) between units.
+% \begin{macrocode}
+\newcommand*\SIunits@opt@mediumspace{%
+ \@mediumspace{runtime option `mediumspace' provided!}}
+% \end{macrocode}
+% \end{macro}
+% \subsubsection{\opt{thinspace}}
+% \begin{macro}{\SIunits@opt@thinspace}
+% This macro provides a thin math space (|\,|) between units.
+% \begin{macrocode}
+\newcommand*\SIunits@opt@thinspace{%
+ \@thinspace{runtime option `thinspace' provided!}}
+% \end{macrocode}
+% \end{macro}
+% \subsubsection{\opt{cdot}}
+% \begin{macro}{\SIunits@opt@cdot}
+% This macro provides a |\cdot| (\(\cdot\)) between units.
+% \begin{macrocode}
+\newcommand*\SIunits@opt@cdot{%
+ \@cdot{runtime option `cdot' provided!}}
+% \end{macrocode}
+% \end{macro}
+% \subsubsection{\opt{thickqspace}}
+% \begin{macro}{\SIunits@opt@thickqspace}
+% This macro provides a thick math space (|\;|) between quantities and units.
+% \begin{macrocode}
+\newcommand*\SIunits@opt@thickqspace{%
+ \@thickqspace{runtime option `thickqspace' provided!}}
+% \end{macrocode}
+% \end{macro}
+% \subsubsection{\opt{mediumqspace}}
+% \begin{macro}{\SIunits@opt@mediumqspace}
+% This macro provides a medium math space (|\:|) between quantities and units.
+% \changes{v0.07 Beta 1}{1999/04/09}{mediumqspace option corrected}
+% \begin{macrocode}
+\newcommand*\SIunits@opt@mediumqspace{%
+ \@mediumqspace{runtime option `mediumqspace' provided!}}
+% \end{macrocode}
+% \end{macro}
+% \subsubsection{\opt{thinqspace}}
+% \begin{macro}{\SIunits@opt@thinqspace}
+% This macro provides a thin math space (|\;|) between quantities and units.
+% \begin{macrocode}
+\newcommand*\SIunits@opt@thinqspace{%
+ \@thinqspace{runtime option `thinqspace' provided!}}
+% \end{macrocode}
+% \end{macro}
+% \subsection{text}
+% \begin{macrocode}
+\DeclareRobustCommand{\@text}{%
+ \ifmmode\expandafter\@text@\else\expandafter\mbox\fi}
+\let\nfss@text\@text%
+\def\@text@#1{\mathchoice%
+ {\textdef@\displaystyle\f@size{#1}}%
+ {\textdef@\textstyle\tf@size{\firstchoice@false #1}}%
+ {\textdef@\textstyle\sf@size{\firstchoice@false #1}}%
+ {\textdef@\textstyle\ssf@size{\firstchoice@false #1}}%
+ \check@mathfonts}%
+\def\textdef@#1#2#3{\hbox{{%
+ \everymath{#1}%
+ \let\f@size#2\selectfont%
+ #3}}}%
+\newif\iffirstchoice@%
+\firstchoice@true%
+\def\stepcounter#1{%
+ \iffirstchoice@%
+ \addtocounter{#1}\@ne%
+ \begingroup \let\@elt\@stpelt \csname cl@#1\endcsname \endgroup
+ \fi%
+}%
+% \end{macrocode}
+%
+% \subsection{International needs}
+% To prevent international problems, one can use both |\meter| and |\metre| for the SI length
+% unit, and |\deka| and |\dekad| for the SI prefix commands |\deca| and |\decad|.
+% \begin{macro}{\meter}
+% \begin{macrocode}
+\DeclareRobustCommand*{\meter}{\metre}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\deka}
+% \begin{macrocode}
+\DeclareRobustCommand*{\deka}{\deca}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\dekad}
+% \begin{macrocode}
+\DeclareRobustCommand*{\dekad}{\decad}
+% \end{macrocode}
+% \end{macro}
+% \subsection{Personal needs}
+% \begin{macro}{\NoAMS}
+% The |\NoAMS| macro has to be added in the preamble, when you don't have the AMS font |eurm10|
+% \begin{macrocode}
+\DeclareRobustCommand*{\NoAMS}{\addprefix{\micro}{\mbox{\SImu}}}
+% \end{macrocode}
+% \end{macro}
+% \changes{v0.03 Beta 2}{1998/10/30}{\cs{NoAMS} command added}
+% \begin{macro}{\addunit}
+% The |\addunit| and |\addprefix| macros give one the possibility to add units and prefixes. This possibility was added after a lot of
+% questions for support of non SI units, that can not be added to this package (it's called \textit{SI}units!). \\Usage:
+% |\addunit{\foot}{ft}|; then the unit can be used: |\unit{1}{\foot}| gives \unit{1}{ft}.
+% \changes{v0.02 Beta 1}{1998/09/09}{\cs{addunit} command added}
+% \begin{macrocode}
+\DeclareRobustCommand{\addunit}[2]{\newcommand{#1}{\ensuremath{\SI@fstyle{#2}}}}
+\DeclareRobustCommand{\addprefix}[2]{\newcommand{#1}{\ensuremath{\SI@fstyle{#2}}}}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\unitskip}
+% The |\unitskip| macro gives one the possibility to choose spacing characters that
+% are not already defined, by the spacing options (page \pageref{sec:options}). It also
+% gives the possibility to use various spacing character in your documents.
+% \begin{macrocode}
+\DeclareRobustCommand*{\unitskip}[1]{\renewcommand{\usk}{\ensuremath{#1}}}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\quantityskip}
+% The |\quantityskip| macro gives one the possibility to choose spacing characters that
+% are not already defined, by the spacing options (page \pageref{sec:options}). It also
+% gives the possibility to use various spacing character in your documents.
+% \begin{macrocode}
+\DeclareRobustCommand*{\quantityskip}[1]{\renewcommand{\@qsk}{\ensuremath{#1}}}
+% \end{macrocode}
+% \end{macro}
+% \changes{v0.03 Beta 2}{1998/10/30}{\cs{quantityskip} command added}
+% \subsection{Spacing units}
+% \changes{v0.03 Beta 2}{1998/10/30}{\cs{qsk} command added}
+% In version \fileversion\ of the \pkgname{SIunits}\ package, one has to do the spacing of units by hand. I have plans to get
+% some things automated in a future version. The |\per| macro gives |/| to be used in a quotient of two units; |\usk|
+% (\textbf{u}nit\textbf{sk}ip) makes a thick math space by default, but can be changed by the spacing options
+% (page \pageref{sec:options}) or the |\unitskip| command. Usage:\\ |\metre\per\second| (unit of speed) gives:
+% \(\mathrm{m/s}\) \\ |\newton\usk\metre| (unit of torque) gives: \(\joenit{\mathrm{N}.\mathrm{m}}\).\\
+% |\@qsk| (\textbf{q}uantity \textbf{sk}ip) makes a thick math space
+% by default, but can be changed by the options for spacing between quantity and unit
+% (page \pageref{sec:options}) or the |\quantityskip| command. |\@qsk| is used in the |\unit| macro.
+% \begin{macro}{\per}
+% \begin{macrocode}
+\DeclareRobustCommand*{\per}{\ensuremath{\SI@fstyle{/}}}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\usk}
+% \begin{macrocode}
+\DeclareRobustCommand*{\usk}{\ensuremath{\;}}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\@qsk}
+% \begin{macrocode}
+\DeclareRobustCommand*{\@qsk}{\ensuremath{\;}}
+% \end{macrocode}
+% \end{macro}
+% \subsubsection{(Re)define the spacing commands.}
+% \changes{v1.20}{2001/06/15}{Solved bug: Defining units using \cs{addunit} in combination with the \opt{cdot} and \opt{textstyle} options, by redefining the \cs{cdot} command. Thanks to Michael M\"{u}ller.}
+% \begin{macrocode}
+\renewcommand{\cdot}{\,\mbox{\textperiodcentered}\,}
+\newcommand{\@cdot}[1]{\DeclareRobustCommand*{\usk}{\ensuremath{\cdot}}\typeout{#1}}
+\newcommand{\@thickspace}[1]{\DeclareRobustCommand*{\usk}{\ensuremath{\;}}\typeout{#1}}
+\newcommand{\@mediumspace}[1]{\DeclareRobustCommand*{\usk}{\ensuremath{\:}}\typeout{#1}}
+\newcommand{\@thinspace}[1]{\DeclareRobustCommand*{\usk}{\ensuremath{\,}}\typeout{#1}}
+\newcommand{\@thickqspace}[1]{\DeclareRobustCommand*{\@qsk}{\ensuremath{\;}}\typeout{#1}}
+\newcommand{\@mediumqspace}[1]{\DeclareRobustCommand*{\@qsk}{\ensuremath{\:}}\typeout{#1}}
+\newcommand{\@thinqspace}[1]{\DeclareRobustCommand*{\@qsk}{\ensuremath{\,}}\typeout{#1}}
+% \end{macrocode}
+%
+% \subsection{Spacing between numerical quantities and unit}
+% \begin{macro}{\unit}
+% \changes{v0.99}{2000/02/21}{period in second argument of \cs{unit} automatically spaces the unit using \cs{usk}}
+% The \cmd{\unit} macro is used to typeset conjunction of a numerical quantity and a unit. Usage:
+% |\unit{120}{\kilo\meter\per\hour} = \unit{33.3}{\meter\per\second}| to get:
+% \unit{120}{\kilo\meter\per\hour} = \unit{33.3}{\meter\per\second}.
+% \changes{v0.05 Beta 1}{1999/02/02}{\cs{unit} command changed, thanks to Nancy Winfree}
+% \changes{v0.06 Beta 1}{1999/04/01}{\cs{unit} command changed back to v0.04 version, thanks to J\"{u}rgen von Hagen}
+% \changes{v1.23}{2001/07/21}{\cs{unit} command: parameter \#1 made math by \cs{ensuremath}}
+% \begin{macrocode}
+{\catcode`\.=13\gdef.{\usk}}
+\newcommand{\period@active}[1]{\begingroup\mathcode`\.="8000\ensuremath{#1}\endgroup}
+\DeclareRobustCommand{\unit}[2]{\@inunitcommandtrue%
+ \ensuremath{\SI@fstyle{#1\@qsk\period@active{#2}}}%
+ \@inunitcommandfalse}
+% \end{macrocode}
+% \end{macro}
+% \changes{v0.03 Beta 3}{1998/11/04}{\cs{unit} command changed}
+% \changes{v0.03 Beta 2}{1998/10/30}{\cs{unit} command added}
+% The |\one| macro is defined to be used for quantities of dimension 1 such as mass fraction. Usage:
+% |\unit{10}{\kilo\gram\per\kilo\gram} = \unit{10}{\one}| to get:
+% \unit{10}{\kilo\gram\per\kilo\gram} = \unit{10}{\one}.
+% \begin{macro}{\one}
+% \begin{macrocode}
+\DeclareRobustCommand{\one}{\settowidth{\@qskwidth}{\@qsk}\hspace*{-\@qskwidth}}
+% \end{macrocode}
+% \end{macro}
+% |\no@qsk| is a negative |\hspace| of length |\@qskwidth| if |\if@inunitcommand| is true, else it does nothing.
+% \begin{macro}{\no@qsk}
+% \changes{v1.26}{2001/07/24}{\cs{no@qsk} command changed to get right behaviour with degree, minute, second}
+% \begin{macrocode}
+\DeclareRobustCommand{\no@qsk}{%
+ \if@inunitcommand%
+ \one%
+ \else%
+ \relax%
+ \fi%
+}
+% \end{macrocode}
+% \end{macro}
+% \changes{v0.99}{1999/11/08}{\cs{one} command added}
+% \changes{v1.01}{2000/03/16}{exponent of \cs{power} command made textstyle sensitive}
+% \subsection{Power(full) macros}
+% \begin{macro}{\power}
+% The |\power|\footnotemark[1]\footnotetext{Thanks to Werenfried Spit --- (|w.spit@WITBO.NL|)} macro is used to typeset a superscript. Usage:
+% |\power{\metre}{2}| to get: m\(^{2}\)
+% \begin{macrocode}
+\DeclareRobustCommand{\power}[2]{\ensuremath{\SI@fstyle{#1}^{\SI@fstyle{#2}}}}
+% \end{macrocode}
+% \end{macro}
+% \changes{v0.06 Beta 2}{1999/04/06}{amssymb compatibility}
+% |\square| and |\squaren| are defined |\AtBeginDocument| to detect and prevent conflicts with
+% packages defining |\square|.
+% \begin{macro}{\square}
+% \begin{macrocode}
+\AtBeginDocument{%
+ \if@redefsquare
+ \providecommand{\square}[1]{\power{#1}{2}}
+ \renewcommand{\square}[1]{\power{#1}{2}}
+ \typeout{Option `amssymb' provided! ^^J
+ Command \protect\square\space redefined by SIunits package!}
+ \typeout{}
+ \else
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\squaren}
+% \begin{macrocode}
+ \if@defsquaren
+ \providecommand{\squaren}[1]{\power{#1}{2}}
+ \renewcommand{\squaren}[1]{\power{#1}{2}}
+ \typeout{Option `squaren' provided! ^^J
+ Command \protect\squaren\space defined by SIunits package!}
+ \typeout{}
+ \else
+ \@ifundefined{square}{%
+ \newcommand*{\square}[1]{\power{#1}{2}}
+ }{%
+ \PackageError{SIunits}{%
+ The command \protect\square\space was already defined.\MessageBreak
+ Possibly due to the amssymb package}%
+ {Hint: use option `amssymb' or `squaren' with SIunits package.\MessageBreak
+ See SIunits.dvi or readme.txt section: Known problems and limitations.}
+ } %\ifundefined{square}
+ \fi %\if@defsquaren
+ \fi %\if@redefsquare
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\unita}
+% \begin{macrocode}
+ \if@defitalian
+ \PackageWarning{SIunits}{Option `italian' provided.\MessageBreak
+ Command \protect\unit\space defined by babel.\MessageBreak
+ Mind to use \protect\unita\space instead.}%
+ \DeclareRobustCommand{\unita}[2]{%
+ \@inunitcommandtrue%
+ \ensuremath{\SI@fstyle{#1\@qsk\period@active{#2}}}%
+ \@inunitcommandfalse%
+ }%
+ \fi%\if@defitalian
+} %\AtBeginDocument
+% \end{macrocode}
+% \changes{v1.30}{2002/08/01}{\cs{unita} added to resolve conflict with \texttt{babel} with \opt{italian} language option}
+% \end{macro}
+% \changes{v1.08}{2000/05/17}{amssymb compatibility improved}
+% \begin{macro}{\SI@square}
+% \changes{v1.29}{2002/07/12}{unwanted space removed (thanks to Svend Tollak Munkejord)}
+% This internal macro is used in the definitions of the ready-to-use units.
+% \begin{macrocode}
+\DeclareRobustCommand{\SI@square}[1]
+ {\if@defsquaren%
+ \squaren{#1}%
+ \else
+ \square{#1}%
+ \fi %\if@defsquaren
+ }
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\squared}
+%\changes{v1.35}{2007/11/24}{Bug fix for textstyle mode}
+% The above example can be realised in a more intuitive way: |\square\metre|: m\(^{2}\).
+% The same goes for |\cubic| \& |\fourth|: m\(^{3}\) \& m\(^{4}\).
+% \begin{macrocode}
+\DeclareRobustCommand*{\squared}{\ensuremath{^{\SI@fstyle{2}}}}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\cubic}
+% \begin{macrocode}
+\DeclareRobustCommand*{\cubic}[1]{\power{#1}{3}}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\cubed}
+%\changes{v1.35}{2007/11/24}{Bug fix for textstyle mode}
+% \begin{macrocode}
+\DeclareRobustCommand*{\cubed}{\ensuremath{^{\SI@fstyle{3}}}}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\fourth}
+% \begin{macrocode}
+\DeclareRobustCommand*{\fourth}[1]{\power{#1}{4}}
+% \end{macrocode}
+% \end{macro}
+%
+%\begin{macro}{\SIminus}
+%\changes{v1.34}{2007/11/22}{New macro}
+%\changes{v1.35}{2007/12/02}{Use real minus sign in text mode}
+%\changes{v1.35}{2007/12/02}{Require \texttt{amstext} package}
+% To allow text-mode and maths-mode use, the appearance of the minus
+% sign needs to be controlled by a macro.
+% \begin{macrocode}
+\RequirePackage{amstext}
+\DeclareRobustCommand*{\SIminus}{%
+ \let\SI@tempa\relax
+ \ifmmode
+ \edef\SI@tempb{bold}%
+ \ifx\math@version\SI@tempb
+ \let\SI@tempa\boldmath%
+ \fi
+ \else
+ \if b\expandafter\@car\f@series\@nil
+ \let\SI@tempa\bfseries%
+ \fi
+ \fi
+ \text{\SI@tempa$-$}%
+}
+% \end{macrocode}
+%\end{macro}
+% The macros |\reciprocal|, |\rpsquare|, |\rpsquared|, |\rpcubic|, |\rpcubed| and |\rpfourth| provide the reciprocal (negative power): e.\,g.
+% m\(^{-1}\), m\(^{-2}\), m\(^{-3}\) and m\(^{-4}\). |\rp| is a short form for |\reciprocal|.
+% \begin{macro}{\reciprocal}
+% \begin{macrocode}
+\DeclareRobustCommand*{\reciprocal}[1]{\power{#1}{\SIminus1}}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\rp}
+% \begin{macrocode}
+\DeclareRobustCommand*{\rp}{\reciprocal}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\rpsquare}
+% \begin{macrocode}
+\DeclareRobustCommand*{\rpsquare}[1]{\power{#1}{\SIminus2}}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\rpsquared}
+%\changes{v1.35}{2007/11/24}{Bug fix for textstyle mode}
+% \begin{macrocode}
+\DeclareRobustCommand*{\rpsquared}{\ensuremath{^{\SI@fstyle{\SIminus2}}}}
+% \end{macrocode}
+% \end% \begin{macro}{\rpcubic}
+% \begin{macrocode}
+\DeclareRobustCommand*{\rpcubic}[1]{\power{#1}{\SIminus3}}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\rpcubed}
+%\changes{v1.35}{2007/11/24}{Bug fix for textstyle mode}
+% \begin{macrocode}
+\DeclareRobustCommand*{\rpcubed}{\ensuremath{^{\SI@fstyle{\SIminus3}}}}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\rpfourth}
+% \begin{macrocode}
+\DeclareRobustCommand*{\rpfourth}[1]{\power{#1}{\SIminus4}}
+% \end{macrocode}
+% \end{macro}
+% \subsection{SI decimal \textit{prefixes}}
+% These prefixes may be used to construct decimal fractions or multiples of units. Two
+% different forms are provided, e.\,g. |\milli| and |\millid|.
+% \subsubsection{Symbols}
+% The first form gives the symbol of the prefix: |\milli\second|: ms;
+% \begin{macrocode}
+\addprefix{\yocto}{y}
+\addprefix{\zepto}{z}
+\addprefix{\atto}{a}
+\addprefix{\femto}{f}
+\addprefix{\pico}{p}
+\addprefix{\nano}{n}
+\AtBeginDocument{%
+\if@optionNoAMS%
+ \addprefix{\micro}{\mbox{\SImu}}%
+\else%
+ \addprefix{\micro}{\upmu}%
+ \fi%
+\if@textstyle%
+ \DeclareRobustCommand{\micro}{{\ensuremath{\@text{\SImu}}}}%
+\fi}
+\addprefix{\milli}{m}
+\addprefix{\centi}{c}
+\addprefix{\deci}{d}
+\addprefix{\deca}{da}
+\addprefix{\hecto}{h}
+\addprefix{\kilo}{k}
+\addprefix{\mega}{M}
+\addprefix{\giga}{G}
+\addprefix{\tera}{T}
+\addprefix{\peta}{P}
+\addprefix{\exa}{E}
+\addprefix{\zetta}{Z}
+\addprefix{\yotta}{Y}
+% \end{macrocode}
+% \subsubsection{Decimal form}
+% \begin{macro}{decimals}
+% The other form gives the \textbf{d}ecimal factor: |\kilod\usk\hertz|:
+% \(\joenit{\kilod.\hertz}\)
+% \begin{macrocode}
+\DeclareRobustCommand*{\yoctod}{\power{10}{-24}}
+\DeclareRobustCommand*{\zeptod}{\power{10}{-21}}
+\DeclareRobustCommand*{\attod}{\power{10}{-18}}
+\DeclareRobustCommand*{\femtod}{\power{10}{-15}}
+\DeclareRobustCommand*{\picod}{\power{10}{-12}}
+\DeclareRobustCommand*{\nanod}{\power{10}{-9}}
+\DeclareRobustCommand*{\microd}{\power{10}{-6}}
+\DeclareRobustCommand*{\millid}{\power{10}{-3}}
+\DeclareRobustCommand*{\centid}{\power{10}{-2}}
+\DeclareRobustCommand*{\decid}{\power{10}{-1}}
+\DeclareRobustCommand*{\decad}{\power{10}{1}}
+\DeclareRobustCommand*{\hectod}{\power{10}{2}}
+\DeclareRobustCommand*{\kilod}{\power{10}{3}}
+\DeclareRobustCommand*{\megad}{\power{10}{6}}
+\DeclareRobustCommand*{\gigad}{\power{10}{9}}
+\DeclareRobustCommand*{\terad}{\power{10}{12}}
+\DeclareRobustCommand*{\petad}{\power{10}{15}}
+\DeclareRobustCommand*{\exad}{\power{10}{18}}
+\DeclareRobustCommand*{\zettad}{\power{10}{21}}
+\DeclareRobustCommand*{\yottad}{\power{10}{24}}
+% \end{macrocode}
+% \subsubsection*{The SI exception}
+% In the SI, \textit{Base} units and \textit{Derived} units do not have
+% prefixes, except for the \textit{base} unit of mass: \textit{kilo}gram, not: gram. However,
+% the macro |\gram| provides the symbol of gram: \gram.
+% \begin{macro}{\gram}
+% \begin{macrocode}
+\addunit{\gram}{g}
+% \end{macrocode}
+% \end{macro}
+% \subsection{SI \textit{base} units}
+% \paragraph{length} metre --- \metre \\
+% Both |\metre| and |\meter| can be used.
+% \begin{macro}{\metre}
+% \begin{macrocode}
+\addunit{\metre}{m}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{mass} kilogram --- \kilogram
+% \begin{macro}{\kilogram}
+% \begin{macrocode}
+\addunit{\kilogram}{\kilo\gram}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{time} second --- \second
+% \begin{macro}{\second}
+% \begin{macrocode}
+\addunit{\second}{s}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{electric current} ampere --- \ampere
+% \begin{macro}{\ampere}
+% \begin{macrocode}
+\addunit{\ampere}{A}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{thermodynamic temperature} kelvin --- \kelvin
+% \begin{macro}{\kelvin}
+% \begin{macrocode}
+\addunit{\kelvin}{K}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{amount of substance} mole --- \mole
+% \begin{macro}{\mole}
+% \begin{macrocode}
+\addunit{\mole}{mol}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{luminous intensity} candela --- \candela
+% \begin{macro}{\candela}
+% \begin{macrocode}
+\addunit{\candela}{cd}
+% \end{macrocode}
+% \end{macro}
+%
+% \subsection{SI \textit{derived} units}
+% \paragraph{plane angle} radian --- \radian
+% \begin{macro}{\radian}
+% \begin{macrocode}
+\addunit{\radian}{rad}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{solid angle} steradian --- \steradian
+% \begin{macro}{\steradian}
+% \begin{macrocode}
+\addunit{\steradian}{sr}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{frequency} hertz --- \hertz
+% \begin{macro}{\hertz}
+% \begin{macrocode}
+\addunit{\hertz}{Hz}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{force} newton --- \newton
+% \begin{macro}{\newton}
+% \begin{macrocode}
+\addunit{\newton}{N}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{pressure} pascal --- \pascal
+% \begin{macro}{\pascal}
+% \begin{macrocode}
+\addunit{\pascal}{Pa}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{energy, work, quantity of heat} joule --- \joule
+% \begin{macro}{\joule}
+% \begin{macrocode}
+\addunit{\joule}{J}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{power, radiant flux} watt --- \watt
+% \begin{macro}{\watt}
+% \begin{macrocode}
+\addunit{\watt}{W}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{electric charge, quantity of electricity} coulomb -- \coulomb
+% \begin{macro}{\coulomb}
+% \begin{macrocode}
+\addunit{\coulomb}{C}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{electrical potential, potential difference, electromotive force} volt --- \volt
+% \begin{macro}{\volt}
+% \begin{macrocode}
+\addunit{\volt}{V}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{capacitance} farad --- \farad
+% \begin{macro}{\farad}
+% \begin{macrocode}
+\addunit{\farad}{F}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{electrical resistance} ohm --- \ohm
+% \begin{macro}{\ohm}
+% \changes{v0.04}{1999/01/22}{\cs{ohm} definition changed (thanks to Juergen von Haegen)}
+% \begin{macrocode}
+\addunit{\ohm}{\ensuremath{\Omega}}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{electrical conductance} siemens --- \siemens
+% \begin{macro}{\siemens}
+% \begin{macrocode}
+\addunit{\siemens}{S}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{magnetic flux, magnetic field strength} weber --- \weber
+% \begin{macro}{\weber}
+% \begin{macrocode}
+\addunit{\weber}{Wb}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{magnetic flux density} tesla --- \tesla
+% \begin{macro}{\tesla}
+% \begin{macrocode}
+\addunit{\tesla}{T}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{inductance} henry --- \henry
+% \begin{macro}{\henry}
+% \begin{macrocode}
+\addunit{\henry}{H}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{Celsius temperature} degree Celsius --- \degreecelsius \\ both
+% |\degreecelsius| and |\celsius| can be used.
+% \begin{macro}{\degreecelsius}
+% \begin{macrocode}
+\newcommand{\degreecelsius}{\protect\@inunitcommandfalse\ensuremath{\SI@fstyle{\degree\Celsius}}}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\celsius}
+% \begin{macrocode}
+\addunit{\celsius}{\degreecelsius}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{luminous flux} lumen --- \lumen
+% \begin{macro}{\lumen}
+% \begin{macrocode}
+\addunit{\lumen}{lm}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{illuminance} lux --- \lux
+% \begin{macro}{\lux}
+% \changes{v0.03 Beta 1}{1998/10/23}{\cs{lux} unit corrected: lx }
+% \begin{macrocode}
+\addunit{\lux}{lx}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{activity of a radionuclide} becquerel --- \becquerel
+% \begin{macro}{\becquerel}
+% \begin{macrocode}
+\addunit{\becquerel}{Bq}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{absorbed dose, specific energy imparted, kerma} gray --- \gray \\
+% |\gray| is defined |\AtBeginDocument|.
+% \begin{macro}{\gray}
+% \begin{macrocode}
+\AtBeginDocument{%
+\if@redefGray
+ \providecommand{\gray}{\ensuremath{\SI@fstyle{Gy}}}
+ \renewcommand{\gray}{\ensuremath{\SI@fstyle{Gy}}}
+ \typeout{Option `pstricks' provided! ^^J
+ Command \protect\gray\space redefined by SIunits package!}
+ \typeout{}
+ \else
+ \if@defGray
+ \providecommand{\Gray}{\ensuremath{\SI@fstyle{Gy}}}
+ \renewcommand{\Gray}{\ensuremath{\SI@fstyle{Gy}}}
+ \typeout{Option `Gray' provided! ^^J
+ Command \protect\Gray\space defined by SIunits package!}
+ \typeout{}
+ \else
+ \@ifundefined{gray}{%
+ \newcommand*{\gray}{\ensuremath{\SI@fstyle{Gy}}}
+ }{%
+ \PackageWarningNoLine{SIunits}{%
+ The command \protect\gray\space was already defined.\MessageBreak
+ Possibly due to the pstricks package}
+ \typeout{Hint: use option `pstricks' or `Gray' with SIunits package.}
+ \typeout{See SIunits.dvi or readme.txt section: Known problems and limitations.}
+ \typeout{}
+ } %\ifundefined{gray}
+ \fi %\if@defGray
+ \fi %\if@redefGray
+} %\AtBeginDocument
+% \changes{v0.99}{1999/09/06}{Conflict between pstricks and \cs{gray} solved}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{dose equivalent} sievert --- \sievert
+% \begin{macro}{\sievert}
+% \begin{macrocode}
+\addunit{\sievert}{Sv}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{catalytic activity} katal --- \katal
+% \begin{macro}{\katal}
+% \changes{v1.13}{2000/08/29}{unit katal with symbol \katal\ implemented}
+% \begin{macrocode}
+\addunit{\katal}{kat}
+% \end{macrocode}
+% \end{macro}
+
+% \subsubsection{The \opt{derivedinbase} mode}
+% \subsection*{Expression of derived SI units in SI base units}
+% \begin{macro}{\SIunits@opt@derivedinbase}
+% This macro provides the expression of derived SI units in SI base units.
+% These macros can be accessed by putting `base' behind the SI derived unit command,
+% e.\,g. (|\pascalbase|) to get `\pascalbase'.
+%
+% \begin{macrocode}
+\newcommand*\SIunits@opt@derivedinbase{%
+\typeout{Option 'derivedinbase' provided!^^J}
+\addunit{\radianbase}%
+ {\metre\usk\reciprocal\metre}
+\addunit{\steradianbase}%
+ {\squaremetre\usk\rpsquare\metre}
+\addunit{\hertzbase}%
+ {\reciprocal\second}
+\addunit{\newtonbase}%
+ {\metre\usk\kilogram\usk\second\rpsquared}
+\addunit{\pascalbase}%
+ {\reciprocal\metre\usk\kilogram\usk\second\rpsquared}
+\addunit{\joulebase}%
+ {\squaremetre\usk\kilogram\usk\second\rpsquared}
+\addunit{\wattbase}%
+ {\squaremetre\usk\kilogram\usk\rpcubic\second}
+\addunit{\coulombbase}%
+ {\ampere\usk\second}
+\addunit{\voltbase}%
+ {\squaremetre\usk\kilogram\usk\rpcubic\second\usk\reciprocal\ampere}
+\addunit{\faradbase}%
+ {\rpsquare\metre\usk\reciprocal\kilogram\usk\fourth\second\usk\ampere\squared}
+\addunit{\ohmbase}%
+ {\squaremetre\usk\kilogram\usk\rpcubic\second\usk\rpsquare\ampere}
+\addunit{\siemensbase}%
+ {\rpsquare\metre\usk\reciprocal\kilogram\usk\cubic\second\usk\ampere\squared}
+\addunit{\weberbase}%
+ {\squaremetre\usk\kilogram\usk\second\rpsquared\usk\reciprocal\ampere}
+\addunit{\teslabase}%
+ {\kilogram\usk\second\rpsquared\usk\reciprocal\ampere}
+\addunit{\henrybase}%
+ {\squaremetre\usk\kilogram\usk\second\rpsquared\usk\rpsquare\ampere}
+\addunit{\celsiusbase}%
+ {\kelvin}
+\addunit{\lumenbase}%
+ {\candela\usk\squaremetre\usk\rpsquare\metre}
+\addunit{\luxbase}%
+ {\candela\usk\squaremetre\usk\rpfourth\metre}
+\addunit{\becquerelbase}%
+ {\hertzbase}
+\addunit{\graybase}%
+ {\squaremetre\usk\second\rpsquared}
+\addunit{\sievertbase}%
+ {\graybase}
+\addunit{\katalbase}%
+ {\rp\second\usk\mole }
+}
+% \end{macrocode}
+% \end{macro}
+% \subsubsection{The \opt{derived} mode}
+% \subsection*{Expression of derived SI units in other derived SI units}
+% \begin{macro}{\SIunits@opt@derived}
+% This macro provides the expression of derived SI units in other SI derived units (if possible).
+% These macros can be accessed by putting `der' in front of the SI derived unit command,
+% e.\,g. (|\derpascal|) to get `\derpascal'.
+%
+% \begin{macrocode}
+\newcommand*\SIunits@opt@derived{%
+\addunit{\derradian}%
+ {\metre\usk\reciprocal\metre}
+\addunit{\dersteradian}%
+ {\squaremetre\usk\rpsquare\metre}
+\addunit{\derhertz}%
+ {\reciprocal\second}
+\addunit{\dernewton}%
+ {\metre\usk\kilogram\usk\second\rpsquared}
+\addunit{\derpascal}%
+ {\newton\usk\rpsquare\metre}
+\addunit{\derjoule}%
+ {\newton\usk\metre}
+\addunit{\derwatt}%
+ {\joule\usk\reciprocal\second}
+\addunit{\dercoulomb}%
+ {\ampere\usk\second}
+\addunit{\dervolt}%
+ {\watt\usk\reciprocal\ampere}
+\addunit{\derfarad}%
+ {\coulomb\usk\reciprocal\volt}
+\addunit{\derohm}%
+ {\volt\usk\reciprocal\ampere}
+\addunit{\dersiemens}%
+ {\ampere\usk\reciprocal\volt}
+\addunit{\derweber}%
+ {\squaremetre\usk\kilogram\usk\second\rpsquared\usk\reciprocal\ampere}
+\addunit{\dertesla}%
+ {\weber\usk\rpsquare\metre}
+\addunit{\derhenry}%
+ {\weber\usk\reciprocal\ampere}
+\addunit{\dercelsius}%
+ {\kelvin}
+\addunit{\derlumen}%
+ {\candela\usk\steradian}
+\addunit{\derlux}%
+ {\lumen\usk\rpsquare\metre}
+\addunit{\derbecquerel}%
+ {\derhertz}
+\addunit{\dergray}%
+ {\joule\usk\reciprocal\kilogram}
+\addunit{\dersievert}%
+ {\dergray}
+\addunit{\derkatal}%
+ {\katalbase}
+ \typeout{Option `derived' provided!}}
+% \end{macrocode}
+% \end{macro}
+% \subsection{Units that are used with the SI}
+% \paragraph{Time} minute --- \minute; hour --- \hour; day --- \dday \\ |\day| was already defined, so use |\dday|.
+% \begin{macro}{\minute}
+% \begin{macrocode}
+\addunit{\minute}{min}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\hour}
+% \begin{macrocode}
+\addunit{\hour}{h}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\dday}
+% \begin{macrocode}
+\addunit{\dday}{d}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{Plane angle} degree --- \degree; minute --- \paminute; second --- \arcsecond \\ |\minute| and |\second| were already defined.
+% \begin{macro}{\degree}
+% \changes{v0.99}{1999/11/05}{\cs{arcsecond} and \cs{arcminute} added.}
+% \begin{macrocode}
+\addunit{\degree}{\no@qsk\ensuremath{^{\circ}}}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\paminute}
+% \begin{macrocode}
+\addunit{\paminute}{\no@qsk\ensuremath{'}}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\arcminute}
+% \begin{macrocode}
+\addunit{\arcminute}{\no@qsk\ensuremath{'}}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\pasecond}
+% \begin{macrocode}
+\addunit{\pasecond}{\no@qsk\ensuremath{''}}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\arcsecond}
+% \begin{macrocode}
+\addunit{\arcsecond}{\no@qsk\ensuremath{''}}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{Mass} metric ton or tonne --- \ton
+% \begin{macro}{\ton}
+% \begin{macrocode}
+\addunit{\ton}{t}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\tonne}
+% \begin{macrocode}
+\addunit{\tonne}{t}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{Volume} litre --- \litre; liter --- \liter
+% \begin{macro}{\liter}
+% \begin{macrocode}
+\addunit{\liter}{L}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\litre}
+% \begin{macrocode}
+\addunit{\litre}{l}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\neper}
+% \begin{macrocode}
+\addunit{\neper}{Np}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\bel}
+% \begin{macrocode}
+\addunit{\bel}{B}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{Radioactivity} curie --- \curie
+% \begin{macro}{\curie}
+% \begin{macrocode}
+\addunit{\curie}{Ci}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{Absorbed dose} rad --- \rad \\ When there is risk of confusion with the symbol for radian (\radian), \arad\ may be used as the symbol for rad.
+% \begin{macro}{\rad}
+% \begin{macrocode}
+\addunit{\rad}{rad}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\arad}
+% \begin{macrocode}
+\addunit{\arad}{rd}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{Dose equivalent} rem --- \rem
+% \begin{macro}{\rem}
+% \begin{macrocode}
+\addunit{\rem}{rem}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{Exposure roentgen} roentgen--- \roentgen
+% \begin{macro}{\roentgen}
+% \begin{macrocode}
+\addunit{\roentgen}{R}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{Energy} electronvolt --- \electronvolt
+% \begin{macro}{\electronvolt}
+%\changes{v1.35}{2007/11/23}{Improved appearance}
+% \begin{macrocode}
+\addunit{\electronvolt}{e\kern-0.05ex\volt}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{Unified atomic mass unit} atomic mass --- \atomicmass
+% \begin{macro}{\atomicmass}
+% \begin{macro}{\atomicmassunit}
+%\changes{v1.35}{2007/11/23}{New unit}
+% \begin{macro}{\dalton}
+%\changes{v1.35}{2007/11/23}{New unit}
+% \begin{macrocode}
+\addunit{\atomicmass}{u}
+\addunit{\atomicmassunit}{u}
+\addunit{\dalton}{Da}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \paragraph{Area} are --- \are; hectare --- \hectare; barn --- \barn
+% \begin{macro}{\are}
+% \begin{macrocode}
+\addunit{\are}{a}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\hectare}
+% \begin{macrocode}
+\addunit{\hectare}{\hecto\are}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\barn}
+% \begin{macrocode}
+\addunit{\barn}{b}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{Pressure} bar --- \bbar
+% \begin{macro}{\bbar}
+% \begin{macrocode}
+\addunit{\bbar}{bar}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{Acceleration} gal --- \gal
+% \begin{macro}{\gal}
+% \begin{macrocode}
+\addunit{\gal}{Gal}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{Length} \aa ngstr\"{o}m --- \angstrom
+% \changes{v0.02 Beta 7}{1998/10/01}{\cs{angstrom} changed; thanks to Lutz Schwalowsky}
+% \begin{macro}{\angstrom}
+% \begin{macrocode}
+\addunit{\angstrom}{\mbox{{\AA}}}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{Rotational frequency} revolutions per minute --- \rperminute; revolutions per second --- \rpersecond
+% \begin{macro}{\rperminute}
+% \begin{macrocode}
+\addunit{\rperminute}{r\per\minute}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\rpersecond}
+% \begin{macrocode}
+\addunit{\rpersecond}{r\per\second}
+% \end{macrocode}
+% \end{macro}
+%
+% \subsection{SI units with compound names}
+% \paragraph{Area} square metre --- \squaremetre
+% \begin{macro}{\squaremetre}
+% \begin{macrocode}
+\addunit{\squaremetre}{\SI@square\metre}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{Volume} cubic metre --- \cubicmetre
+% \begin{macro}{\cubicmetre}
+% \begin{macrocode}
+\addunit{\cubicmetre}{\cubic\metre}
+% \end{macrocode}
+% \end{macro}
+% \subsection{Various ready-to-use units}
+% These units are provided for the ease of the users of the \pkgname{SIunits}\ package. Normally, two
+% forms of the units are provided, e.\,g. |\graypersecond| and |\graypersecondnp|. The
+% |command|\textsf{np} form uses negative powers instead of /: `\graypersecond' and
+% `\graypersecondnp'.\\
+% \changes{v0.02 Beta 3}{1998/09/11}{\cs{pH} command removed (not in SI)}
+% \paragraph{absorbed dose rate}
+% \begin{macrocode}
+\addunit{\graypersecond}{\gray\per\second}
+\addunit{\graypersecondnp}{\gray\usk\reciprocal\second}
+% \end{macrocode}
+% \end{macro}
+% \paragraph{acceleration}
+% \begin{macrocode}
+\addunit{\metrepersquaresecond}{\metre\per\second\squared}
+\addunit{\metrepersquaresecondnp}{\metre\usk\second\rpsquared}
+% \end{macrocode}
+% \paragraph{activation energy, molar energy}
+% \begin{macrocode}
+\addunit{\joulepermole}{\joule\per\mole}
+\addunit{\joulepermolenp}{\joule\usk\reciprocal\mole}
+% \end{macrocode}
+% \paragraph{amount-of-substance concentration}
+% \begin{macrocode}
+\addunit{\molepercubicmetre}{\mole\per\cubic\metre}
+\addunit{\molepercubicmetrenp}{\mole\usk\rpcubic\metre}
+% \end{macrocode}
+% \paragraph{angular acceleration}
+% \begin{macrocode}
+\addunit{\radianpersquaresecond}{\radian\per\second\squared}
+\addunit{\radianpersquaresecondnp}{\radian\usk\second\rpsquared}
+% \end{macrocode}
+% \paragraph{angular momentum}
+% \begin{macrocode}
+\addunit{\kilogramsquaremetrepersecond}{\kilogram\usk\squaremetre\per\second}
+\addunit{\kilogramsquaremetrepersecondnp}{\kilogram\usk\squaremetre\usk\reciprocal\second}
+% \end{macrocode}
+% \paragraph{angular velocity}
+% \begin{macrocode}
+\addunit{\radianpersecond}{\radian\per\second}
+\addunit{\radianpersecondnp}{\radian\usk\reciprocal\second}
+% \end{macrocode}
+% \paragraph{area per unit volume}
+% \begin{macrocode}
+\addunit{\squaremetrepercubicmetre}{\squaremetre\per\cubic\metre}
+\addunit{\squaremetrepercubicmetrenp}{\squaremetre\usk\rpcubic\metre}
+% \end{macrocode}
+% \paragraph{catalytic (activity) concentration}
+% \changes{v1.13}{2000/08/29}{catalytic concentration added}
+% \begin{macrocode}
+\addunit{\katalpercubicmetre}{\katal\per\cubic\metre}
+\addunit{\katalpercubicmetrenp}{\katal\usk\rpcubic\metre}
+% \end{macrocode}
+% \paragraph{charge per mole}
+% \begin{macrocode}
+\addunit{\coulombpermol}{\coulomb\per\mole}
+\addunit{\coulombpermolnp}{\coulomb\usk\reciprocal\mole}
+% \end{macrocode}
+% \paragraph{current density}
+% \begin{macrocode}
+\addunit{\amperepersquaremetre}{\ampere\per\squaremetre}
+\addunit{\amperepersquaremetrenp}{\ampere\usk\rpsquare\metre}
+% \end{macrocode}
+% \paragraph{density}
+% \begin{macrocode}
+\addunit{\kilogrampercubicmetre}{\kilogram\per\cubic\metre}
+\addunit{\kilogrampercubicmetrenp}{\kilogram\usk\rpcubic\metre}
+% \end{macrocode}
+% \paragraph{dynamic fluidity (1/viscosity)}
+% \begin{macrocode}
+\addunit{\squaremetrepernewtonsecond}{\squaremetre\per\newton\usk\second}
+\addunit{\squaremetrepernewtonsecondnp}{\squaremetre\usk\reciprocal\newton\usk\reciprocal\second}
+% \end{macrocode}
+% \paragraph{dynamic viscosity}
+% \begin{macrocode}
+\addunit{\pascalsecond}{\pascal\usk\second}
+% \end{macrocode}
+% \paragraph{electric charge density}
+% \begin{macrocode}
+\addunit{\coulombpercubicmetre}{\coulomb\per\cubic\metre}
+\addunit{\coulombpercubicmetrenp}{\coulomb\usk\rpcubic\metre}
+% \end{macrocode}
+% \paragraph{electric dipole moment}
+% \begin{macrocode}
+\addunit{\amperemetresecond}{\ampere\usk\metre\usk\second}
+% \end{macrocode}
+% \paragraph{electric field strength}
+% \begin{macrocode}
+\addunit{\voltpermetre}{\volt\per\metre}
+\addunit{\voltpermetrenp}{\volt\usk\reciprocal\metre}
+% \end{macrocode}
+% \paragraph{electric flux density}
+% \begin{macrocode}
+\addunit{\coulombpersquaremetre}{\coulomb\per\squaremetre}
+\addunit{\coulombpersquaremetrenp}{\coulomb\usk\rpsquare\metre}
+% \end{macrocode}
+% \paragraph{electrical permittivity}
+% \begin{macrocode}
+\addunit{\faradpermetre}{\farad\per\metre}
+\addunit{\faradpermetrenp}{\farad\usk\reciprocal\metre}
+% \end{macrocode}
+% \paragraph{electrical resistivity}
+% \begin{macrocode}
+\addunit{\ohmmetre}{\ohm\usk\metre}
+% \end{macrocode}
+% \paragraph{energy}
+% \begin{macrocode}
+\addunit{\kilowatthour}{\kilo\watt\hour}
+% \end{macrocode}
+% \paragraph{energy flux}
+% \begin{macrocode}
+\addunit{\wattpersquaremetre}{\watt\per\squaremetre}
+\addunit{\wattpersquaremetrenp}{\watt\usk\rpsquare\metre}
+% \end{macrocode}
+% \paragraph{energy per unit area}
+% \begin{macrocode}
+\addunit{\joulepersquaremetre}{\joule\per\squaremetre}
+\addunit{\joulepersquaremetrenp}{\joule\usk\rpsquare\metre}
+% \end{macrocode}
+% \paragraph{force (body)}
+% \begin{macrocode}
+\addunit{\newtonpercubicmetre}{\newton\per\cubic\metre}
+\addunit{\newtonpercubicmetrenp}{\newton\usk\rpcubic\metre}
+% \end{macrocode}
+% \paragraph{force per unit mass}
+% \begin{macrocode}
+\addunit{\newtonperkilogram}{\newton\per\kilogram}
+\addunit{\newtonperkilogramnp}{\newton\usk\reciprocal\kilogram}
+% \end{macrocode}
+% \paragraph{heat capacity, entropy}
+% \begin{macrocode}
+\addunit{\jouleperkelvin}{\joule\per\kelvin}
+\addunit{\jouleperkelvinnp}{\joule\usk\reciprocal\kelvin}
+% \end{macrocode}
+% \paragraph{heat of combustion, fusion or vaporisation}
+% \begin{macrocode}
+\addunit{\jouleperkilogram}{\joule\per\kilogram}
+\addunit{\jouleperkilogramnp}{\joule\usk\reciprocal\kilogram}
+% \end{macrocode}
+% \paragraph{intensity of ionising radiation}
+% \begin{macrocode}
+\addunit{\coulombperkilogram}{\coulomb\per\kilogram}
+\addunit{\coulombperkilogramnp}{\coulomb\usk\reciprocal\kilogram}
+% \end{macrocode}
+% \paragraph{kinematic viscosity}
+% \begin{macrocode}
+\addunit{\squaremetrepersecond}{\squaremetre\per\second}
+\addunit{\squaremetrepersecondnp}{\squaremetre\usk\reciprocal\second}
+% \end{macrocode}
+% \paragraph{kinematic energy of turbulence}
+% \begin{macrocode}
+\addunit{\squaremetrepersquaresecond}{\squaremetre\per\second\squared}
+\addunit{\squaremetrepersquaresecondnp}{\squaremetre\usk\second\rpsquared}
+% \end{macrocode}
+% \paragraph{linear momentum}
+% \begin{macrocode}
+\addunit{\kilogrammetrepersecond}{\kilogram\usk\metre\per\second}
+\addunit{\kilogrammetrepersecondnp}{\kilogram\usk\metre\usk\reciprocal\second}
+% \end{macrocode}
+% \paragraph{luminance}
+% \begin{macrocode}
+\addunit{\candelapersquaremetre}{\candela\per\squaremetre}
+\addunit{\candelapersquaremetrenp}{\candela\usk\rpsquare\metre}
+% \end{macrocode}
+% \paragraph{magnetic field strength}
+% \begin{macrocode}
+\addunit{\amperepermetre}{\ampere\per\metre}
+\addunit{\amperepermetrenp}{\ampere\usk\reciprocal\metre}
+% \end{macrocode}
+% \paragraph{magnetic moment}
+% \begin{macrocode}
+\addunit{\joulepertesla}{\joule\per\tesla}
+\addunit{\jouleperteslanp}{\joule\usk\reciprocal\tesla}
+% \end{macrocode}
+% \paragraph{magnetic permeability}
+% \begin{macrocode}
+\addunit{\henrypermetre}{\henry\per\metre}
+\addunit{\henrypermetrenp}{\henry\usk\reciprocal\metre}
+% \end{macrocode}
+% \paragraph{mass flow rate}
+% \begin{macrocode}
+\addunit{\kilogrampersecond}{\kilogram\per\second}
+\addunit{\kilogrampersecondnp}{\kilogram\usk\reciprocal\second}
+% \end{macrocode}
+% \paragraph{mass flux}
+% \begin{macrocode}
+\addunit{\kilogrampersquaremetresecond}{\kilogram\per\squaremetre\usk\second}
+\addunit{\kilogrampersquaremetresecondnp}{\kilogram\usk\rpsquare\metre\usk\reciprocal\second}
+% \end{macrocode}
+% \paragraph{mass per unit area}
+% \begin{macrocode}
+\addunit{\kilogrampersquaremetre}{\kilogram\per\squaremetre}
+\addunit{\kilogrampersquaremetrenp}{\kilogram\usk\rpsquare\metre}
+% \end{macrocode}
+% \paragraph{mass per unit length}
+% \begin{macrocode}
+\addunit{\kilogrampermetre}{\kilogram\per\metre}
+\addunit{\kilogrampermetrenp}{\kilogram\usk\reciprocal\metre}
+% \end{macrocode}
+% \paragraph{molar heat capacity, molar entropy}
+% \begin{macrocode}
+\addunit{\joulepermolekelvin}{\joule\per\mole\usk\kelvin}
+\addunit{\joulepermolekelvinnp}{\joule\usk\reciprocal\mole\usk\reciprocal\kelvin}
+% \end{macrocode}
+% \paragraph{molecular weight}
+% \begin{macrocode}
+\addunit{\kilogramperkilomole}{\kilogram\per\kilo\mole}
+\addunit{\kilogramperkilomolenp}{\kilogram\usk\kilo\reciprocal\mole}
+% \end{macrocode}
+% \paragraph{moment of inertia}
+% \begin{macrocode}
+\addunit{\kilogramsquaremetre}{\kilogram\usk\squaremetre}
+\addunit{\kilogramsquaremetrenp}{\kilogramsquaremetre}
+% \end{macrocode}
+% \paragraph{momentum flow rate}
+% \begin{macrocode}
+\addunit{\kilogrammetrepersquaresecond}{\kilogram\usk\metre\per\second\squared}
+\addunit{\kilogrammetrepersquaresecondnp}{\kilogram\usk\metre\usk\second\rpsquared}
+% \end{macrocode}
+% \paragraph{momentum flux}
+% \begin{macrocode}
+\addunit{\newtonpersquaremetre}{\newton\per\squaremetre}
+\addunit{\newtonpersquaremetrenp}{\newton\usk\rpsquare\metre}
+% \end{macrocode}
+% \paragraph{photon emission rate}
+% \begin{macrocode}
+\addunit{\persquaremetresecond}{1\per\squaremetre\usk\second}
+\addunit{\persquaremetresecondnp}{\rpsquare\metre\usk\reciprocal\second}
+% \end{macrocode}
+% \paragraph{power per unit mass}
+% \begin{macrocode}
+\addunit{\wattperkilogram}{\watt\per\kilogram}
+\addunit{\wattperkilogramnp}{\watt\usk\reciprocal\kilogram}
+% \end{macrocode}
+% \paragraph{power per unit volume}
+% \begin{macrocode}
+\addunit{\wattpercubicmetre}{\watt\per\cubic\metre}
+\addunit{\wattpercubicmetrenp}{\watt\usk\rpcubic\metre}
+% \end{macrocode}
+% \paragraph{radiance}
+% \begin{macrocode}
+\addunit{\wattpersquaremetresteradian}{\watt\per\squaremetre\usk\steradian}
+\addunit{\wattpersquaremetresteradiannp}{\watt\usk\rpsquare\metre\usk\rp\steradian}
+% \end{macrocode}
+% \paragraph{specific heat capacity}
+% \begin{macrocode}
+\addunit{\jouleperkilogramkelvin}{\joule\per\kilogram\usk\kelvin}
+\addunit{\jouleperkilogramkelvinnp}{\joule\usk\reciprocal\kilogram\usk\reciprocal\kelvin}
+% \end{macrocode}
+% \paragraph{specific surface}
+% \begin{macrocode}
+\addunit{\squaremetreperkilogram}{\squaremetre\per\kilogram}
+\addunit{\rpsquaremetreperkilogram}{\squaremetre\usk\reciprocal\kilogram}
+% \end{macrocode}
+% \paragraph{specific volume}
+% \begin{macrocode}
+\addunit{\cubicmetreperkilogram}{\cubic\metre\per\kilogram}
+\addunit{\rpcubicmetreperkilogram}{\cubic\metre\usk\reciprocal\kilogram}
+% \end{macrocode}
+% \paragraph{surface tension}
+% \begin{macrocode}
+\addunit{\newtonpermetre}{\newton\per\metre}
+\addunit{\newtonpermetrenp}{\newton\usk\reciprocal\metre}
+% \end{macrocode}
+% \paragraph{derived SI unit: \degreecelsius}
+% \begin{macrocode}
+\addunit{\Celsius}{\ensuremath{\SI@fstyle{C}}}
+% \end{macrocode}
+% \paragraph{thermal conductivity}
+% \begin{macrocode}
+\addunit{\wattpermetrekelvin}{\watt\per\metre\usk\kelvin}
+\addunit{\wattpermetrekelvinnp}{\watt\usk\reciprocal\metre\usk\reciprocal\kelvin}
+% \end{macrocode}
+% \paragraph{torque}
+% \begin{macrocode}
+\addunit{\newtonmetre}{\newton\usk\metre} \addunit{\newtonmetrenp}{\newtonmetre}
+% \end{macrocode}
+% \paragraph{turbulence energy dissipation rate}
+% \begin{macrocode}
+\addunit{\squaremetrepercubicsecond}{\squaremetre\per\cubic\second}
+\addunit{\squaremetrepercubicsecondnp}{\squaremetre\usk\rpcubic\second}
+% \end{macrocode}
+% \paragraph{velocity}
+% \begin{macrocode}
+\addunit{\metrepersecond}{\metre\per\second}
+\addunit{\metrepersecondnp}{\metre\usk\reciprocal\second}
+% \end{macrocode}
+% \paragraph{volumetric calorific value}
+% \begin{macrocode}
+\addunit{\joulepercubicmetre}{\joule\per\cubicmetre}
+\addunit{\joulepercubicmetrenp}{\joule\usk\rpcubic\metre}
+% \end{macrocode}
+% \paragraph{volumetric coefficient of expansion}
+% \begin{macrocode}
+\addunit{\kilogrampercubicmetrecoulomb}{\kilogram\per\cubic\metre\usk\coulomb}
+\addunit{\kilogrampercubicmetrecoulombnp}{\kilogram\usk\rpcubic\metre\usk\reciprocal\coulomb}
+% \end{macrocode}
+% \paragraph{volumetric flow rate}
+% \begin{macrocode}
+\addunit{\cubicmetrepersecond}{\cubicmetre\per\second}
+\addunit{\rpcubicmetrepersecond}{\cubicmetre\usk\reciprocal\second}
+% \end{macrocode}
+% \paragraph{volumetric mass flow rate}
+% \begin{macrocode}
+\addunit{\kilogrampersecondcubicmetre}{\kilogram\per\second\usk\cubicmetre}
+\addunit{\kilogrampersecondcubicmetrenp}{\kilogram\usk\reciprocal\second\usk\rpcubic\metre}
+% \end{macrocode}
+
+% \subsection{Option handling}
+% \changes{v0.99}{1999/07/23}{LaTeX2e option handling implemented.}
+% \DescribeMacro{Options}
+% \subsubsection{\opt{cdot} option}
+% \begin{macrocode}
+\DeclareOption{cdot}{\@cdot{Option `cdot' provided!}}
+% \end{macrocode}
+% \subsubsection{\opt{thickspace} option}
+% \begin{macrocode}
+\DeclareOption{thickspace}{\@thickspace{Option `thickspace' provided!}}
+% \end{macrocode}
+% \subsubsection{\opt{mediumspace} option}
+% \begin{macrocode}
+\DeclareOption{mediumspace}{\@mediumspace{Option `mediumspace' provided!}}
+% \end{macrocode}
+% \subsubsection{\opt{thinspace} option}
+% \begin{macrocode}
+\DeclareOption{thinspace}{\@thinspace{Option `thinspace' provided!}}
+% \end{macrocode}
+% \subsubsection{\opt{thickqspace} option}
+% \begin{macrocode}
+\DeclareOption{thickqspace}{\@thickqspace{Option `thickqspace' provided!}}
+% \end{macrocode}
+% \subsubsection{\opt{mediumqspace} option}
+% \begin{macrocode}
+\DeclareOption{mediumqspace}{\@mediumqspace{Option `mediumqspace' provided!}}
+% \end{macrocode}
+% \subsubsection{\opt{thinqspace} option}
+% \begin{macrocode}
+\DeclareOption{thinqspace}{\@thinqspace{Option `thinqspace' provided!}}
+% \end{macrocode}
+% \subsubsection{\opt{textstyle} option}
+% Typeset units in text style.
+% \begin{macrocode}
+\DeclareOption{textstyle}{\renewcommand\SI@fstyle[1]{\@text{\protect#1}}%
+\@textstyletrue%
+\typeout{Option `textstyle' provided!}}
+% \end{macrocode}
+% \subsection{compatibility options}
+% \begin{macrocode}
+\DeclareOption{amssymb}{\@redefsquaretrue%
+\typeout{Option `amssymb' provided!}}
+\DeclareOption{squaren}{\@defsquarentrue%
+\typeout{Option `squaren' provided!}}
+\DeclareOption{pstricks}{\@redefGraytrue%
+\typeout{Option `pstricks' provided!}}
+\DeclareOption{Gray}{\@defGraytrue%
+\typeout{Option `Gray' provided!}}
+\DeclareOption{italian}{\@defitaliantrue%
+\typeout{Option `italian' provided!}}
+% \end{macrocode}
+% \changes{v1.30}{2002/08/01}{option \opt{italian} added}
+% \subsection{Miscellaneous options}
+% \begin{macrocode}
+\DeclareOption{binary}{\@optionbinarytrue }
+\AtEndOfPackage{\if@optionbinary\RequirePackage{binary}\fi}
+\DeclareOption{derivedinbase}{\SIunits@opt@derivedinbase}
+\DeclareOption{derived}{\SIunits@opt@derived}
+\DeclareOption{noams}{\@optionNoAMStrue%
+\typeout{Option `noams' provided!}}
+% \end{macrocode}
+% \subsection{Unknown options}
+% \begin{macrocode}
+\DeclareOption*{\PackageWarningNoLine{SIunits}{What is `\CurrentOption'?}}
+% \end{macrocode}
+% \subsection{The \pkgname{SIunits}\texttt{.cfg} file}
+% Load the |SIunits.cfg| file.
+% \changes{v0.03 Beta 5}{1998/12/11}{Load optional configuration file `SIunits.cfg'}
+% \begin{macrocode}
+\InputIfFileExists{SIunits.cfg}{}%
+{\PackageWarningNoLine{SIunits}{You have no `SIunits.cfg' file installed.
+\MessageBreak I will assume you are using `thickspace' and `thickqspace'}
+\ExecuteOptions{thickspace,thickqspace}}
+\ProcessOptions\relax
+%</package>
+% \end{macrocode}
+% \section{The \texttt{binary.sty} style for binary prefixes and (non-SI) units}
+% \begin{macrocode}
+%<*binary>
+\AtBeginDocument{%
+\addprefix{\kibi}{Ki} \newcommand{\kibid}{\power{2}{10}}
+\addprefix{\mebi}{Mi} \newcommand{\mebid}{\power{2}{20}}
+\addprefix{\gibi}{Gi} \newcommand{\gibid}{\power{2}{30}}
+\addprefix{\tebi}{Ti} \newcommand{\tebid}{\power{2}{40}}
+\addprefix{\pebi}{Pi} \newcommand{\pebid}{\power{2}{50}}
+\addprefix{\exbi}{Ei} \newcommand{\exbid}{\power{2}{60}}
+
+\addunit{\bit}{bit}
+\addunit{\byte}{B}%
+} %\AtBeginDocument
+%</binary>
+% \end{macrocode}
+% \changes{v1.13}{2000/08/29}{Index and change history generation error fixed}
+% \changes{v1.29}{2002/08/01}{Index and change history generation errors fixed}
+%
+% \Finale
+\endinput
diff --git a/macros/latex/contrib/SIunits/SIunits.ins b/macros/latex/contrib/SIunits/SIunits.ins
new file mode 100644
index 0000000000..765f406c8f
--- /dev/null
+++ b/macros/latex/contrib/SIunits/SIunits.ins
@@ -0,0 +1,74 @@
+%% LaTeX2e file `SIunits.ins'
+%% generated by the `filecontents' environment
+%% from source `SIunits' on 2007/11/24.
+%%
+%% Note: This package is now maintained by Joseph Wright
+%% (joseph.wright@morningstar2.co.uk)
+%% Copyright 2007 Joseph Wright
+%% ---------------------------------------------------------------------
+%%
+%% SIunits.ins will generate the fast loadable files SIunits.sty and
+%% binary.sty, the documentation driver SIunits.drv and the configura-
+%% tion file SIunits.cfg from the package file SIunits.dtx when run
+%% through LaTeX or TeX.
+%%
+%% Copyright (C) 2001 Marcel Heldoorn
+%%
+%% This program may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%% http://www.latex-project.org/lppl.txt
+%% and version 1.3 or later is part of all distributions of LaTeX
+%% version 2003/12/01 or later.
+%%
+%% NOTE:
+%% The LPPL about .ins files:
+%% - Files with extension `.ins' (installation files): these files may
+%% not be modified at all because they contain the legal notices
+%% that are placed in the generated files.
+%%
+%% --------------- start of docstrip commands ------------------
+%%
+\def\batchfile{SIunits.ins}
+\input docstrip.tex
+\keepsilent
+\preamble
+
+Copyright (c) 1998-2002 Marcel Heldoorn <m.heldoorn@webschool.nl>.
+
+This program may be distributed and/or modified under the conditions of the LaTeX Project
+Public License, either version 1.3 of this license or (at your option) any later version.
+The latest version of this license is in http://www.latex-project.org/lppl.txt and
+version 1.3a or later is part of all distributions of LaTeX version 2003/12/01 or later.
+
+For error reports in case of UNCHANGED versions see the readme.txt file.
+
+Please do not request updates from me directly. Distribution is done through the
+Comprehensive TeX Archive Network (CTAN).
+
+\endpreamble
+\postamble
+
+ Source: $Id: SIunits.dtx,v 1.33 2002/08/01 11:20:00 root Exp root $
+\endpostamble
+\generate{\file{SIunits.sty}{\from{SIunits.dtx}{package}}}
+\generate{\file{binary.sty}{\from{SIunits.dtx}{binary}}}
+\nopreamble
+\generate{\file{SIunits.cfg}{\from{SIunits.dtx}{config}}}
+\generate{\file{SIunits.drv}{\from{SIunits.dtx}{driver}}}
+ \Msg{************************************************************}
+ \Msg{}
+ \Msg{ To finish the installation you have to move the file}
+ \Msg{ `SIunits.sty' (and optionally the file `SIunits.cfg')}
+ \Msg{ into a directory searched by LaTeX.}
+ \Msg{}
+ \Msg{ To type-set the documentation, run the file `SIunits.drv'}
+ \Msg{ through LaTeX.}
+ \Msg{ Process SIunits.idx file by:}
+ \Msg{ \space\space\space\space makeindex -s gind.ist SIunits}
+ \Msg{ Process SIunits.glo file by:}
+ \Msg{ \space\space\space\space makeindex -s gglo.ist -o SIunits.gls SIunits.glo}
+ \Msg{}
+ \Msg{************************************************************}
+\endbatchfile
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