skmath (30dec18)

git-svn-id: svn://tug.org/texlive/trunk@49550 c570f23f-e606-0410-a88d-b1316a301751

4 files changed, 103 insertions, 10 deletions

diff --git a/Master/texmf-dist/doc/latex/skmath/README b/Master/texmf-dist/doc/latex/skmath/README
index 81a018c49c7..6c27ea912e8 100644
--- a/Master/texmf-dist/doc/latex/skmath/README
+++ b/Master/texmf-dist/doc/latex/skmath/README
@@ -1,6 +1,6 @@
 %% skmath improved math commands
 %%
-%% Copyright (C) 2012-2016 by Simon Sigurdhsson <sigurdhsson@gmail.com>
+%% Copyright (C) 2012-2019 by Simon Sigurdhsson <sigurdhsson@gmail.com>
 %%
 %% This work may be distributed and/or modified under the
 %% conditions of the LaTeX Project Public License, either version 1.3
@@ -17,7 +17,7 @@
 %% This work consists of the file skmath.tex
 %% and the derived file skmath.sty.
 
-This is version 0.4b of the skmath package, a package which provides
+This is version 0.5 of the skmath package, a package which provides
 improved and new math commands for superior typesetting with lower effort.
 
 The following files are enclosed.
diff --git a/Master/texmf-dist/doc/latex/skmath/skmath.pdf b/Master/texmf-dist/doc/latex/skmath/skmath.pdf
index e160ccde722..170c185bd5d 100644
--- a/Master/texmf-dist/doc/latex/skmath/skmath.pdf
+++ b/Master/texmf-dist/doc/latex/skmath/skmath.pdf
diff --git a/Master/texmf-dist/source/latex/skmath/skmath.tex b/Master/texmf-dist/source/latex/skmath/skmath.tex
index 83fe206908a..424e795f6b6 100644
--- a/Master/texmf-dist/source/latex/skmath/skmath.tex
+++ b/Master/texmf-dist/source/latex/skmath/skmath.tex
@@ -1,6 +1,6 @@
 %% skmath improved math commands
 %%
-%% Copyright (C) 2012-2016 by Simon Sigurdhsson <sigurdhsson@gmail.com>
+%% Copyright (C) 2012-2019 by Simon Sigurdhsson <sigurdhsson@gmail.com>
 %%
 %% This work may be distributed and/or modified under the
 %% conditions of the LaTeX Project Public License, either version 1.3
@@ -22,6 +22,7 @@
 \usepackage{csquotes}
 \ProvideDocumentCommand\d{m}{#1}
 \ProvideDocumentCommand\pd{smm}{#2#3}
+\ProvideDocumentCommand\td{mm}{#1#2}
 \ProvideDocumentCommand\abs{m}{#1}
 \ProvideDocumentCommand\norm{m}{#1}
 \ProvideDocumentCommand\abs{m}{#1}
@@ -37,6 +38,7 @@
 \ProvideDocumentCommand\C{}{}
 \ProvideDocumentCommand\ii{}{i}
 \ProvideDocumentCommand\jj{}{j}
+\ProvideDocumentCommand\ee{}{e}
 \ProvideDocumentCommand\sfrac{mm}{#1#2}
 \ProvideDocumentCommand\argmin{om}{#1}
 \ProvideDocumentCommand\argmax{om}{#1}
@@ -56,7 +58,7 @@
 % This is where the documentation begins
 \begin{document}
   % Change & version info
-  \version{0.4b}
+  \version{0.5}
   \changes{0.1}{Initial version}
   \changes{0.1c}{Moved package from \pkg{docstrip} to \pkg{skdoc}}
   \changes{0.1d}{Fixed fatal documentation and package errors}
@@ -69,6 +71,7 @@
   \changes{0.4}{Added \opt{notation} option, macros for complex numbers}
   \changes{0.4a}{Replaced deprecated/removed \pkg{expl3} constructs}
   \changes{0.4b}{Track \pkg{expl3} changes (thanks to Joseph Wright)}
+  \changes{0.5}{Added \cs{td} and \cs{ee}}
   % Don't forget to update the version number and release date of
   % the package declaration in the implementation!
 
@@ -131,6 +134,10 @@
   of the package simply results in italic characters, setting the \opt{notation}
   option to \texttt{iso} will set these upright.
 
+  \DescribeMacro\ee
+  This command typesets Euler's number \(\ee = \sum_{n=0}^\infty\frac{1}{n!}\).
+  The style is affected by the \opt{notation} option in the same way as \Macro\exp.
+
   \DescribeMacro\norm{<expression>}
   \DescribeMacro\abs{<expression>}
   The commands \Macro\norm and \Macro\abs, quite expectedly, typeset
@@ -169,6 +176,15 @@
   supports superscripts to denote the number of derivatives, and the
   sum of the variables is automatically calculated.
 
+  \DescribeMacro\td{<function>}{<var>}
+  This macro typesets a total derivative. Unlike \Macro\pd, this macro does
+  not have a starred variant, and only typesets full fractions:
+\begin{example}
+\begin{equation*}
+  \td{f}{x^m}
+\end{equation*}
+\end{example}
+
   \DescribeMacro\E{<expression>}
   The command \Macro\E typesets the expectation of a random variable.
 \begin{example}
@@ -232,7 +248,7 @@
 
   \DescribeMacro\exp*{<expression>}
   The exponential, \Macro\exp, is redefined to typeset its argument as a
-  superscript of \(e\) in some display styles, and as an argument of
+  superscript of \(\ee\) in some display styles, and as an argument of
   \(\mathrm{exp}\) otherwise:
   \begin{equation*}
     \exp{\sqrt{2}\exp{x}}
@@ -303,7 +319,7 @@
 \begin{MacroCode}{package}
 \RequirePackage{expl3,l3keys2e,xparse}
 \ProvidesExplPackage{skmath}
-    {2017/01/08}{0.4b}{improved math commands}
+    {2018/12/29}{0.5}{improved math commands}
 \PassOptionsToPackage{intlimits,sumlimits,namelimits}{amsmath}
 \RequirePackage{amssymb,mathtools,xfrac}
 \end{MacroCode}
@@ -324,6 +340,9 @@ First, some placeholders to detect failures.
 \cs_gset_nopar:Npn\__skmath_imaginary_unit:n#1{
   \msg_critical:nnn{skmath}{undefined-macro}{\__skmath_imaginary_unit:n}
 }
+\cs_gset_nopar:Npn\__skmath_total_derivative_d:{
+  \msg_critical:nnn{skmath}{undefined-macro}{\__skmath_total_derivative_d:n}
+}
 \end{MacroCode}
 Then, the key-value options.
 \begin{MacroCode}{package}
@@ -349,6 +368,10 @@ Then, the key-value options.
   imaginary-unit / slanted .code:n = { \cs_gset_nopar:Npn\__skmath_imaginary_unit:n##1{{##1}} },
   complex-part-symbols .bool_set_inverse:N = \g__skmath_iso_complex_parts_bool,
   complex-part-symbols .value_required:n = true,
+  total-derivative-d .choice:,
+  total-derivative-d .value_required:n = true,
+  total-derivative-d / upright .code:n = { \cs_gset_nopar:Npn\__skmath_total_derivative_d:{{\operator@font d}} },
+  total-derivative-d / slanted .code:n = { \cs_gset_nopar:Npn\__skmath_total_derivative_d:{{d}} },
 }
 \end{MacroCode}
 
@@ -366,6 +389,7 @@ We also declare the \enquote{public} options.
     natural-log = upright,
     imaginary-unit = upright,
     complex-part-symbols = false,
+    total-derivative-d = upright,
   },
   notation / german .meta:nn = {skmath / internal}{
     integral-d = upright,
@@ -373,6 +397,7 @@ We also declare the \enquote{public} options.
     natural-log = slanted, %???
     imaginary-unit = slanted, %???
     complex-part-symbols = true, %???
+    total-derivative-d = upright, %???
   },
   notation / english .meta:nn = {skmath / internal}{
     integral-d = slanted,
@@ -380,6 +405,7 @@ We also declare the \enquote{public} options.
     natural-log = slanted, %???
     imaginary-unit = slanted, %???
     complex-part-symbols = true, %???
+    total-derivative-d = slanted, %???
   },
   notation / legacy .meta:nn = {skmath / internal}{
     integral-d = upright,
@@ -387,6 +413,7 @@ We also declare the \enquote{public} options.
     natural-log = slanted,
     imaginary-unit = slanted,
     complex-part-symbols = true,
+    total-derivative-d = slanted,
   },
   % Possibly more style sets... ?
   notation .initial:n = legacy, % Or is it? Perhaps a legacy option is required.
@@ -696,6 +723,11 @@ We optionally load \pkg{isomath}, depending on notation style.
 }
 \end{MacroCode}
   \end{macro}
+  \begin{macro}{\ee}
+    \begin{MacroCode}{package}
+    \DeclareDocumentCommand\ee{}{\ensuremath{\__skmath_natural_log_e:}}
+    \end{MacroCode}
+  \end{macro}
   \begin{macro}{\exp}
   \changes{0.1b}{Moved to \textsf{xparse} command definition}
   \changes{0.3a}{Added starred variant}
@@ -778,7 +810,7 @@ We optionally load \pkg{isomath}, depending on notation style.
 \end{MacroCode}
   \end{macro}
 
-  We introduce a couple of helper macros for the \cs{pd} macro backend.
+  We introduce a couple of helper macros for \cs{pd} and \cs{td}.
   \begin{macro*}{\__skmath_if_numerical_p:n}
   \begin{macro*}{\__skmath_if_numerical:nT}
   \begin{macro*}{\__skmath_if_numerical:nF}
@@ -926,8 +958,26 @@ We optionally load \pkg{isomath}, depending on notation style.
 }
 \end{MacroCode}
   \end{macro*}
+  \begin{macro*}{\__skmath_td_fraction:nn}[2]
+    {Tokens representing a mathematical function}
+    {A single variable, possibly with a superscript}
+\begin{MacroCode}{package}
+\cs_new_nopar:Npn\__skmath_td_fraction:nn#1#2{
+  \frac{
+    \__skmath_total_derivative_d:
+    \__skmath_pd_if_vars_sum_above_one:nT{#2}{
+      \c_math_superscript_token{\__skmath_pd_vars_sum:n{#2}}
+    }
+    {#1}
+  }{
+    \__skmath_total_derivative_d:
+    #2
+  }
+}
+\end{MacroCode}
+  \end{macro*}
 
-  Definition of \cs{bar}, \cs{pd} and \cs{d} is deferred until after all
+  Definition of \cs{bar}, \cs{pd}, \cs{td} and \cs{d} is deferred until after all
   packages are loaded to avoid collisions with other packages.
 \begin{MacroCode}{package}
 \AtBeginDocument{%
@@ -959,6 +1009,19 @@ We optionally load \pkg{isomath}, depending on notation style.
 \end{MacroCode}
   \end{macro}
 
+  We also have the total derivative macro,
+  \begin{macro}{\td}[2]
+    {Tokens representing a mathematical function}
+    {A single variable, possibly with a superscript}
+\begin{MacroCode}{package}
+\DeclareDocumentCommand\td{mm}{
+  \ensuremath{
+    \__skmath_td_fraction:nn{#1}{#2}
+  }
+}
+\end{MacroCode}
+  \end{macro}
+
   We introduce a command to typeset the differential part
   of integrals, shamefully stolen from an answer on \TeX.SE.
   \begin{macro}{\d}
diff --git a/Master/texmf-dist/tex/latex/skmath/skmath.sty b/Master/texmf-dist/tex/latex/skmath/skmath.sty
index 57a8fd6c3b7..e856f324f67 100644
--- a/Master/texmf-dist/tex/latex/skmath/skmath.sty
+++ b/Master/texmf-dist/tex/latex/skmath/skmath.sty
@@ -1,7 +1,7 @@
 %% This is file `skmath.sty', generated from `skmath.tex' (key `package').
 %% skmath improved math commands
 %%
-%% Copyright (C) 2012-2016 by Simon Sigurdhsson <sigurdhsson@gmail.com>
+%% Copyright (C) 2012-2019 by Simon Sigurdhsson <sigurdhsson@gmail.com>
 %%
 %% This work may be distributed and/or modified under the
 %% conditions of the LaTeX Project Public License, either version 1.3
@@ -20,7 +20,7 @@
 
 \RequirePackage{expl3,l3keys2e,xparse}
 \ProvidesExplPackage{skmath}
-    {2017/01/08}{0.4b}{improved math commands}
+    {2018/12/29}{0.5}{improved math commands}
 \PassOptionsToPackage{intlimits,sumlimits,namelimits}{amsmath}
 \RequirePackage{amssymb,mathtools,xfrac}
 \msg_new:nnnn{skmath}{undefined-macro}{The~macro~`\token_to_str:N#1'~was~undefined!}
@@ -36,6 +36,9 @@
 \cs_gset_nopar:Npn\__skmath_imaginary_unit:n#1{
   \msg_critical:nnn{skmath}{undefined-macro}{\__skmath_imaginary_unit:n}
 }
+\cs_gset_nopar:Npn\__skmath_total_derivative_d:{
+  \msg_critical:nnn{skmath}{undefined-macro}{\__skmath_total_derivative_d:n}
+}
 \keys_define:nn{skmath / internal}{
   % More on this:
   % * http://en.wikipedia.org/wiki/Typographical_conventions_in_mathematical_formulae
@@ -58,6 +61,10 @@
   imaginary-unit / slanted .code:n = { \cs_gset_nopar:Npn\__skmath_imaginary_unit:n##1{{##1}} },
   complex-part-symbols .bool_set_inverse:N = \g__skmath_iso_complex_parts_bool,
   complex-part-symbols .value_required:n = true,
+  total-derivative-d .choice:,
+  total-derivative-d .value_required:n = true,
+  total-derivative-d / upright .code:n = { \cs_gset_nopar:Npn\__skmath_total_derivative_d:{{\operator@font d}} },
+  total-derivative-d / slanted .code:n = { \cs_gset_nopar:Npn\__skmath_total_derivative_d:{{d}} },
 }
 \keys_define:nn{skmath}{
   commonsets .bool_set:N = \g__skmath_define_common_sets_bool,
@@ -71,6 +78,7 @@
     natural-log = upright,
     imaginary-unit = upright,
     complex-part-symbols = false,
+    total-derivative-d = upright,
   },
   notation / german .meta:nn = {skmath / internal}{
     integral-d = upright,
@@ -78,6 +86,7 @@
     natural-log = slanted, %???
     imaginary-unit = slanted, %???
     complex-part-symbols = true, %???
+    total-derivative-d = upright, %???
   },
   notation / english .meta:nn = {skmath / internal}{
     integral-d = slanted,
@@ -85,6 +94,7 @@
     natural-log = slanted, %???
     imaginary-unit = slanted, %???
     complex-part-symbols = true, %???
+    total-derivative-d = slanted, %???
   },
   notation / legacy .meta:nn = {skmath / internal}{
     integral-d = upright,
@@ -92,6 +102,7 @@
     natural-log = slanted,
     imaginary-unit = slanted,
     complex-part-symbols = true,
+    total-derivative-d = slanted,
   },
   % Possibly more style sets... ?
   notation .initial:n = legacy, % Or is it? Perhaps a legacy option is required.
@@ -231,6 +242,8 @@
     {\ensuremath{\__skmath_log:\__skmath_parens:n{#2}}}
     {\ensuremath{\__skmath_log:\c_math_subscript_token{#1}\__skmath_parens:n{#2}}}%
 }
+    \DeclareDocumentCommand\ee{}{\ensuremath{\__skmath_natural_log_e:}}
+    
 \RenewDocumentCommand\exp{sm}{\ensuremath{
   \IfBooleanTF{#1}{
     \__skmath_exp:\__skmath_parens:n{#2}
@@ -369,6 +382,18 @@
     \__skmath_pd_subscript_vars:n{#2}
   }
 }
+\cs_new_nopar:Npn\__skmath_td_fraction:nn#1#2{
+  \frac{
+    \__skmath_total_derivative_d:
+    \__skmath_pd_if_vars_sum_above_one:nT{#2}{
+      \c_math_superscript_token{\__skmath_pd_vars_sum:n{#2}}
+    }
+    {#1}
+  }{
+    \__skmath_total_derivative_d:
+    #2
+  }
+}
 \AtBeginDocument{%
 \DeclareDocumentCommand\bar{m}{%
     \ensuremath{\mkern 1.5mu\overline{\mkern-1.5mu{#1}\mkern-1.5mu}\mkern 1.5mu}}
@@ -379,6 +404,11 @@
       {\__skmath_pd_fraction:nn{#2}{#3}}
   }
 }
+\DeclareDocumentCommand\td{mm}{
+  \ensuremath{
+    \__skmath_td_fraction:nn{#1}{#2}
+  }
+}
 \DeclareDocumentCommand\d{m}{\ensuremath{\,\__skmath_integral_d: #1%
                               \peek_meaning_ignore_spaces:NT\d{\!}}}
 }