modulus (3may18)

git-svn-id: svn://tug.org/texlive/trunk@47599 c570f23f-e606-0410-a88d-b1316a301751

10 files changed, 769 insertions, 1 deletions

diff --git a/Master/texmf-dist/doc/generic/modulus/CHANGES b/Master/texmf-dist/doc/generic/modulus/CHANGES
new file mode 100644
index 00000000000..c89d5a58dc6
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/modulus/CHANGES
@@ -0,0 +1 @@
+2 May 1202 (2 May 2018):  Initial release.
diff --git a/Master/texmf-dist/doc/generic/modulus/README b/Master/texmf-dist/doc/generic/modulus/README
new file mode 100644
index 00000000000..3e76a5ac15e
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/modulus/README
@@ -0,0 +1,27 @@
++AMDG
+
+This document is copyright 2018 by Donald P. Goodman, and is
+released publicly under the LaTeX Project Public License.  The
+distribution and modification of this work is constrained by the
+conditions of that license.  See
+	http://www.latex-project.org/lppl.txt
+for the text of the license.  This document is released
+under version 1.3 of that license, and this work may be distributed
+or modified under the terms of that license or, at your option, any
+later version.
+
+This work has the LPPL maintenance status 'maintained'.
+
+The Current Maintainer of this work is Donald P. Goodman
+(dgoodmaniii@gmail.com).
+
+This work consists of the files modulus.ins and
+modulus.dtx, along with derived files modulus.sty and
+modulus.pdf.
+
+The modulus package provides non-destructive, TeX-primitive
+macros for assigning the modulus and quotient of division
+operations to counters.
+
+This package should run properly on any properly running LaTeX
+system.
diff --git a/Master/texmf-dist/doc/generic/modulus/lppl.txt b/Master/texmf-dist/doc/generic/modulus/lppl.txt
new file mode 100644
index 00000000000..22443139013
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/modulus/lppl.txt
@@ -0,0 +1,416 @@
+The LaTeX Project Public License
+=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
+
+LPPL Version 1.3c  2008-05-04
+
+Copyright 1999 2002-2008 LaTeX3 Project
+    Everyone is allowed to distribute verbatim copies of this
+    license document, but modification of it is not allowed.
+
+
+PREAMBLE
+========
+
+The LaTeX Project Public License (LPPL) is the primary license under
+which the LaTeX kernel and the base LaTeX packages are distributed.
+
+You may use this license for any work of which you hold the copyright
+and which you wish to distribute.  This license may be particularly
+suitable if your work is TeX-related (such as a LaTeX package), but 
+it is written in such a way that you can use it even if your work is 
+unrelated to TeX.
+
+The section `WHETHER AND HOW TO DISTRIBUTE WORKS UNDER THIS LICENSE',
+below, gives instructions, examples, and recommendations for authors
+who are considering distributing their works under this license.
+
+This license gives conditions under which a work may be distributed
+and modified, as well as conditions under which modified versions of
+that work may be distributed.
+
+We, the LaTeX3 Project, believe that the conditions below give you
+the freedom to make and distribute modified versions of your work
+that conform with whatever technical specifications you wish while
+maintaining the availability, integrity, and reliability of
+that work.  If you do not see how to achieve your goal while
+meeting these conditions, then read the document `cfgguide.tex'
+and `modguide.tex' in the base LaTeX distribution for suggestions.
+
+
+DEFINITIONS
+===========
+
+In this license document the following terms are used:
+
+   `Work'
+    Any work being distributed under this License.
+    
+   `Derived Work'
+    Any work that under any applicable law is derived from the Work.
+
+   `Modification' 
+    Any procedure that produces a Derived Work under any applicable
+    law -- for example, the production of a file containing an
+    original file associated with the Work or a significant portion of
+    such a file, either verbatim or with modifications and/or
+    translated into another language.
+
+   `Modify'
+    To apply any procedure that produces a Derived Work under any
+    applicable law.
+    
+   `Distribution'
+    Making copies of the Work available from one person to another, in
+    whole or in part.  Distribution includes (but is not limited to)
+    making any electronic components of the Work accessible by
+    file transfer protocols such as FTP or HTTP or by shared file
+    systems such as Sun's Network File System (NFS).
+
+   `Compiled Work'
+    A version of the Work that has been processed into a form where it
+    is directly usable on a computer system.  This processing may
+    include using installation facilities provided by the Work,
+    transformations of the Work, copying of components of the Work, or
+    other activities.  Note that modification of any installation
+    facilities provided by the Work constitutes modification of the Work.
+
+   `Current Maintainer'
+    A person or persons nominated as such within the Work.  If there is
+    no such explicit nomination then it is the `Copyright Holder' under
+    any applicable law.
+
+   `Base Interpreter' 
+    A program or process that is normally needed for running or
+    interpreting a part or the whole of the Work.    
+
+    A Base Interpreter may depend on external components but these
+    are not considered part of the Base Interpreter provided that each
+    external component clearly identifies itself whenever it is used
+    interactively.  Unless explicitly specified when applying the
+    license to the Work, the only applicable Base Interpreter is a
+    `LaTeX-Format' or in the case of files belonging to the 
+    `LaTeX-format' a program implementing the `TeX language'.
+
+
+
+CONDITIONS ON DISTRIBUTION AND MODIFICATION
+===========================================
+
+1.  Activities other than distribution and/or modification of the Work
+are not covered by this license; they are outside its scope.  In
+particular, the act of running the Work is not restricted and no
+requirements are made concerning any offers of support for the Work.
+
+2.  You may distribute a complete, unmodified copy of the Work as you
+received it.  Distribution of only part of the Work is considered
+modification of the Work, and no right to distribute such a Derived
+Work may be assumed under the terms of this clause.
+
+3.  You may distribute a Compiled Work that has been generated from a
+complete, unmodified copy of the Work as distributed under Clause 2
+above, as long as that Compiled Work is distributed in such a way that
+the recipients may install the Compiled Work on their system exactly
+as it would have been installed if they generated a Compiled Work
+directly from the Work.
+
+4.  If you are the Current Maintainer of the Work, you may, without
+restriction, modify the Work, thus creating a Derived Work.  You may
+also distribute the Derived Work without restriction, including
+Compiled Works generated from the Derived Work.  Derived Works
+distributed in this manner by the Current Maintainer are considered to
+be updated versions of the Work.
+
+5.  If you are not the Current Maintainer of the Work, you may modify
+your copy of the Work, thus creating a Derived Work based on the Work,
+and compile this Derived Work, thus creating a Compiled Work based on
+the Derived Work.
+
+6.  If you are not the Current Maintainer of the Work, you may
+distribute a Derived Work provided the following conditions are met
+for every component of the Work unless that component clearly states
+in the copyright notice that it is exempt from that condition.  Only
+the Current Maintainer is allowed to add such statements of exemption 
+to a component of the Work. 
+
+  a. If a component of this Derived Work can be a direct replacement
+     for a component of the Work when that component is used with the
+     Base Interpreter, then, wherever this component of the Work
+     identifies itself to the user when used interactively with that
+     Base Interpreter, the replacement component of this Derived Work
+     clearly and unambiguously identifies itself as a modified version
+     of this component to the user when used interactively with that
+     Base Interpreter.
+     
+  b. Every component of the Derived Work contains prominent notices
+     detailing the nature of the changes to that component, or a
+     prominent reference to another file that is distributed as part
+     of the Derived Work and that contains a complete and accurate log
+     of the changes.
+  
+  c. No information in the Derived Work implies that any persons,
+     including (but not limited to) the authors of the original version
+     of the Work, provide any support, including (but not limited to)
+     the reporting and handling of errors, to recipients of the
+     Derived Work unless those persons have stated explicitly that
+     they do provide such support for the Derived Work.
+
+  d. You distribute at least one of the following with the Derived Work:
+
+       1. A complete, unmodified copy of the Work; 
+          if your distribution of a modified component is made by
+          offering access to copy the modified component from a
+          designated place, then offering equivalent access to copy
+          the Work from the same or some similar place meets this
+          condition, even though third parties are not compelled to
+          copy the Work along with the modified component;
+
+       2. Information that is sufficient to obtain a complete,
+          unmodified copy of the Work.
+
+7.  If you are not the Current Maintainer of the Work, you may
+distribute a Compiled Work generated from a Derived Work, as long as
+the Derived Work is distributed to all recipients of the Compiled
+Work, and as long as the conditions of Clause 6, above, are met with
+regard to the Derived Work.
+
+8.  The conditions above are not intended to prohibit, and hence do not
+apply to, the modification, by any method, of any component so that it
+becomes identical to an updated version of that component of the Work as
+it is distributed by the Current Maintainer under Clause 4, above.
+
+9.  Distribution of the Work or any Derived Work in an alternative
+format, where the Work or that Derived Work (in whole or in part) is
+then produced by applying some process to that format, does not relax or
+nullify any sections of this license as they pertain to the results of
+applying that process.
+     
+10. a. A Derived Work may be distributed under a different license
+       provided that license itself honors the conditions listed in
+       Clause 6 above, in regard to the Work, though it does not have
+       to honor the rest of the conditions in this license.
+      
+    b. If a Derived Work is distributed under a different license, that
+       Derived Work must provide sufficient documentation as part of
+       itself to allow each recipient of that Derived Work to honor the 
+       restrictions in Clause 6 above, concerning changes from the Work.
+
+11. This license places no restrictions on works that are unrelated to
+the Work, nor does this license place any restrictions on aggregating
+such works with the Work by any means.
+
+12.  Nothing in this license is intended to, or may be used to, prevent
+complete compliance by all parties with all applicable laws.
+
+
+NO WARRANTY
+===========
+
+There is no warranty for the Work.  Except when otherwise stated in
+writing, the Copyright Holder provides the Work `as is', without
+warranty of any kind, either expressed or implied, including, but not
+limited to, the implied warranties of merchantability and fitness for a
+particular purpose.  The entire risk as to the quality and performance
+of the Work is with you.  Should the Work prove defective, you assume
+the cost of all necessary servicing, repair, or correction.
+
+In no event unless required by applicable law or agreed to in writing
+will The Copyright Holder, or any author named in the components of the
+Work, or any other party who may distribute and/or modify the Work as
+permitted above, be liable to you for damages, including any general,
+special, incidental or consequential damages arising out of any use of
+the Work or out of inability to use the Work (including, but not limited
+to, loss of data, data being rendered inaccurate, or losses sustained by
+anyone as a result of any failure of the Work to operate with any other
+programs), even if the Copyright Holder or said author or said other
+party has been advised of the possibility of such damages.
+
+
+MAINTENANCE OF THE WORK
+=======================
+
+The Work has the status `author-maintained' if the Copyright Holder
+explicitly and prominently states near the primary copyright notice in
+the Work that the Work can only be maintained by the Copyright Holder
+or simply that it is `author-maintained'.
+
+The Work has the status `maintained' if there is a Current Maintainer
+who has indicated in the Work that they are willing to receive error
+reports for the Work (for example, by supplying a valid e-mail
+address). It is not required for the Current Maintainer to acknowledge
+or act upon these error reports.
+
+The Work changes from status `maintained' to `unmaintained' if there
+is no Current Maintainer, or the person stated to be Current
+Maintainer of the work cannot be reached through the indicated means
+of communication for a period of six months, and there are no other
+significant signs of active maintenance.
+
+You can become the Current Maintainer of the Work by agreement with
+any existing Current Maintainer to take over this role.
+
+If the Work is unmaintained, you can become the Current Maintainer of
+the Work through the following steps:
+
+ 1.  Make a reasonable attempt to trace the Current Maintainer (and
+     the Copyright Holder, if the two differ) through the means of
+     an Internet or similar search.
+
+ 2.  If this search is successful, then enquire whether the Work
+     is still maintained.
+
+  a. If it is being maintained, then ask the Current Maintainer
+     to update their communication data within one month.
+     
+  b. If the search is unsuccessful or no action to resume active
+     maintenance is taken by the Current Maintainer, then announce
+     within the pertinent community your intention to take over
+     maintenance.  (If the Work is a LaTeX work, this could be
+     done, for example, by posting to comp.text.tex.)
+
+ 3a. If the Current Maintainer is reachable and agrees to pass
+     maintenance of the Work to you, then this takes effect
+     immediately upon announcement.
+     
+  b. If the Current Maintainer is not reachable and the Copyright
+     Holder agrees that maintenance of the Work be passed to you,
+     then this takes effect immediately upon announcement.  
+    
+ 4.  If you make an `intention announcement' as described in 2b. above
+     and after three months your intention is challenged neither by
+     the Current Maintainer nor by the Copyright Holder nor by other
+     people, then you may arrange for the Work to be changed so as
+     to name you as the (new) Current Maintainer.
+     
+ 5.  If the previously unreachable Current Maintainer becomes
+     reachable once more within three months of a change completed
+     under the terms of 3b) or 4), then that Current Maintainer must
+     become or remain the Current Maintainer upon request provided
+     they then update their communication data within one month.
+
+A change in the Current Maintainer does not, of itself, alter the fact
+that the Work is distributed under the LPPL license.
+
+If you become the Current Maintainer of the Work, you should
+immediately provide, within the Work, a prominent and unambiguous
+statement of your status as Current Maintainer.  You should also
+announce your new status to the same pertinent community as
+in 2b) above.
+
+
+WHETHER AND HOW TO DISTRIBUTE WORKS UNDER THIS LICENSE
+======================================================
+
+This section contains important instructions, examples, and
+recommendations for authors who are considering distributing their
+works under this license.  These authors are addressed as `you' in
+this section.
+
+Choosing This License or Another License
+----------------------------------------
+
+If for any part of your work you want or need to use *distribution*
+conditions that differ significantly from those in this license, then
+do not refer to this license anywhere in your work but, instead,
+distribute your work under a different license.  You may use the text
+of this license as a model for your own license, but your license
+should not refer to the LPPL or otherwise give the impression that
+your work is distributed under the LPPL.
+
+The document `modguide.tex' in the base LaTeX distribution explains
+the motivation behind the conditions of this license.  It explains,
+for example, why distributing LaTeX under the GNU General Public
+License (GPL) was considered inappropriate.  Even if your work is
+unrelated to LaTeX, the discussion in `modguide.tex' may still be
+relevant, and authors intending to distribute their works under any
+license are encouraged to read it.
+
+A Recommendation on Modification Without Distribution
+-----------------------------------------------------
+
+It is wise never to modify a component of the Work, even for your own
+personal use, without also meeting the above conditions for
+distributing the modified component.  While you might intend that such
+modifications will never be distributed, often this will happen by
+accident -- you may forget that you have modified that component; or
+it may not occur to you when allowing others to access the modified
+version that you are thus distributing it and violating the conditions
+of this license in ways that could have legal implications and, worse,
+cause problems for the community.  It is therefore usually in your
+best interest to keep your copy of the Work identical with the public
+one.  Many works provide ways to control the behavior of that work
+without altering any of its licensed components.
+
+How to Use This License
+-----------------------
+
+To use this license, place in each of the components of your work both
+an explicit copyright notice including your name and the year the work
+was authored and/or last substantially modified.  Include also a
+statement that the distribution and/or modification of that
+component is constrained by the conditions in this license.
+
+Here is an example of such a notice and statement:
+
+  %% pig.dtx
+  %% Copyright 2005 M. Y. Name
+  %
+  % This work 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 2005/12/01 or later.
+  %
+  % This work has the LPPL maintenance status `maintained'.
+  % 
+  % The Current Maintainer of this work is M. Y. Name.
+  %
+  % This work consists of the files pig.dtx and pig.ins
+  % and the derived file pig.sty.
+
+Given such a notice and statement in a file, the conditions
+given in this license document would apply, with the `Work' referring
+to the three files `pig.dtx', `pig.ins', and `pig.sty' (the last being
+generated from `pig.dtx' using `pig.ins'), the `Base Interpreter'
+referring to any `LaTeX-Format', and both `Copyright Holder' and
+`Current Maintainer' referring to the person `M. Y. Name'.
+
+If you do not want the Maintenance section of LPPL to apply to your
+Work, change `maintained' above into `author-maintained'.  
+However, we recommend that you use `maintained', as the Maintenance
+section was added in order to ensure that your Work remains useful to
+the community even when you can no longer maintain and support it
+yourself.
+
+Derived Works That Are Not Replacements
+---------------------------------------
+
+Several clauses of the LPPL specify means to provide reliability and
+stability for the user community. They therefore concern themselves
+with the case that a Derived Work is intended to be used as a
+(compatible or incompatible) replacement of the original Work. If
+this is not the case (e.g., if a few lines of code are reused for a
+completely different task), then clauses 6b and 6d shall not apply.
+
+
+Important Recommendations
+-------------------------
+
+ Defining What Constitutes the Work
+
+   The LPPL requires that distributions of the Work contain all the
+   files of the Work.  It is therefore important that you provide a
+   way for the licensee to determine which files constitute the Work.
+   This could, for example, be achieved by explicitly listing all the
+   files of the Work near the copyright notice of each file or by
+   using a line such as:
+
+    % This work consists of all files listed in manifest.txt.
+   
+   in that place.  In the absence of an unequivocal list it might be
+   impossible for the licensee to determine what is considered by you
+   to comprise the Work and, in such a case, the licensee would be
+   entitled to make reasonable conjectures as to which files comprise
+   the Work.
+
diff --git a/Master/texmf-dist/doc/generic/modulus/modulus.pdf b/Master/texmf-dist/doc/generic/modulus/modulus.pdf
new file mode 100644
index 00000000000..868bc578366
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/modulus/modulus.pdf
diff --git a/Master/texmf-dist/source/generic/modulus/modulus.dtx b/Master/texmf-dist/source/generic/modulus/modulus.dtx
new file mode 100644
index 00000000000..62d970c2316
--- /dev/null
+++ b/Master/texmf-dist/source/generic/modulus/modulus.dtx
@@ -0,0 +1,212 @@
+% \iffalse
+% +AMDG  This document was begun on 1 May 1202, the
+% feast of St. Joseph the Worker, and it
+% is humbly dedicated to him and to the Immaculate Heart of
+% Mary for their prayers, and to the Sacred Heart of Jesus 
+% for His mercy.
+%
+% This document is copyright 2018 by Donald P. Goodman, and is
+% released publicly under the LaTeX Project Public License.  The
+% distribution and modification of this work is constrained by the
+% conditions of that license.  See
+% 	http://www.latex-project.org/lppl.txt
+% for the text of the license.  This document is released
+% under version 1.3c of that license, and this work may be distributed
+% or modified under the terms of that license or, at your option, any
+% later version.
+% 
+% This work has the LPPL maintenance status 'maintained'.
+% 
+% The Current Maintainer of this work is Donald P. Goodman
+% (dgoodmaniii@gmail.com).
+% 
+% This work consists of modulus.dtx, modulus.ins, and
+% derived files modulus.sty and modulus.pdf.
+% \fi
+
+% \iffalse
+%<package>\NeedsTeXFormat{LaTeX2e}[1999/12/01]
+%<package>\ProvidesPackage{modulus}[2018/05/07 v1.0 Modulus/modulo operator in plain TeX]
+%<*driver>
+\documentclass{ltxdoc}
+
+\usepackage{doc}
+\usepackage{modulus}
+\usepackage{booktabs}
+
+\begin{document}
+\DocInput{modulus.dtx}
+\end{document}
+%</driver> \fi
+%
+% \title{The |modulus| Package, v1.0}
+% \author{Donald P.\ Goodman III}
+% \date{\today}
+%
+% \maketitle
+%
+% \begin{abstract}
+% \noindent
+% \TeX\ (traditional \TeX, not even $\epsilon$-\TeX) has the four
+% basic functions with |\advance|, |\multiply|, and
+% |\divide|, though these are all integer operations.  This
+% tiny package makes a modulus operator usable with \TeX\
+% (or \LaTeX, and probably most flavors).  It also provides a
+% non-destructive way of
+% getting at the integer quotient of two numbers.
+% \end{abstract}
+%
+% \tableofcontents
+%
+% \section{The Operators}
+%
+% One question immediately occurs to me:  why bother with
+% such a package, when $\epsilon$-\TeX\ already has
+% |\numexpr|, and there are so many advanced packages
+% providing real math, and even floating-point operations
+% and bignums?  The answer is twofold:  (1) an interesting
+% project, and (2) \TeX\ is the archival format, as Knuth
+% has always emphasized, and so doing things in ordinary
+% \TeX, where possible, should be preferred, to keep it
+% such.
+%
+% The core of the package is \DescribeMacro{\modulo}|\modulo|:
+%
+% \begin{center}
+% \cmd{\modulo} \marg{dividend} \marg{divisor}
+% \end{center}
+%
+% Running this will assign the remainder of the integer
+% division of \textit{dividend} and \textit{divisor} to the
+% counter \DescribeMacro{\remainder}|\remainder|.  The
+% values of \textit{dividend} and \textit{divisor} will not
+% be changed, if they are changeable (e.g., if they are
+% counters).
+%
+% Note that the package works with plain \TeX\ counters,
+% \emph{not} \LaTeX-style counters created and set with
+% |\newcounter{counter}| and friends.  If you try to
+% use it with |\thecounter| or |\value{counter}| in the 
+% \LaTeX\ style, it will not work.  Fortunately, plain-\TeX\
+% counters are perfectly usable within \LaTeX.
+%
+% We can use the macro as such:
+%
+% \begin{quote}
+% |\modulo{\the\dividend}{\the\divisor}\the\remainder|
+% \end{quote}
+%
+% This will execute the macro and print the resulting
+% remainder.  We can also use simple number tokens in the
+% same way:
+%
+% \begin{quote}
+% |\modulo{8}{3}\the\remainder|: \modulo{8}{3}\the\remainder
+% \end{quote}
+%
+% In the table above, the divisor is always the
+% value of a counter |\testdivisor|, which is 4; the
+% dividend is the value of a counter |\testdividend|, which
+% is reset as indicated in each line.  We then do the
+% modulus operation and print the value of |\remainder| in
+% the ``Modulus'' column.  We then reprint the values of
+% |\testdividend| and |\testdivisor|, to show that we have
+% not altered them by taking the remainder.
+%
+% \newcount\testdivisor\testdivisor=4
+% \newcount\testdividend
+%
+% \begin{table}[t]
+% \centering
+% \begin{tabular}{ccccc}
+% \toprule
+% Dividend & Divisor & Modulus & Dividend & Divisor \\
+% \midrule
+% \global\testdividend=1\leavevmode\the\testdividend & \the\testdivisor &
+%		\modulo{\the\testdividend}{\the\testdivisor}\the\remainder &
+%		\the\testdividend & \the\testdivisor \\
+% \global\testdividend=2\leavevmode\the\testdividend & \the\testdivisor &
+%		\modulo{\the\testdividend}{\the\testdivisor}\the\remainder &
+%		\the\testdividend & \the\testdivisor \\
+% \global\testdividend=3\leavevmode\the\testdividend & \the\testdivisor &
+%		\modulo{\the\testdividend}{\the\testdivisor}\the\remainder &
+%		\the\testdividend & \the\testdivisor \\
+% \global\testdividend=4\leavevmode\the\testdividend & \the\testdivisor &
+%		\modulo{\the\testdividend}{\the\testdivisor}\the\remainder &
+%		\the\testdividend & \the\testdivisor \\
+% \global\testdividend=5\leavevmode\the\testdividend & \the\testdivisor &
+%		\modulo{\the\testdividend}{\the\testdivisor}\the\remainder &
+%		\the\testdividend & \the\testdivisor \\
+% \global\testdividend=6\leavevmode\the\testdividend & \the\testdivisor &
+%		\modulo{\the\testdividend}{\the\testdivisor}\the\remainder &
+%		\the\testdividend & \the\testdivisor \\
+% \global\testdividend=7\leavevmode\the\testdividend & \the\testdivisor &
+%		\modulo{\the\testdividend}{\the\testdivisor}\the\remainder &
+%		\the\testdividend & \the\testdivisor \\
+% \global\testdividend=8\leavevmode\the\testdividend & \the\testdivisor &
+%		\modulo{\the\testdividend}{\the\testdivisor}\the\remainder &
+%		\the\testdividend & \the\testdivisor \\
+% \global\testdividend=9\leavevmode\the\testdividend & \the\testdivisor &
+%		\modulo{\the\testdividend}{\the\testdivisor}\the\remainder &
+%		\the\testdividend & \the\testdivisor \\
+% \bottomrule
+% \end{tabular}
+% \caption{A few example modulos, dividend and divisor both
+% before and after the operation.}
+% \label{tab:ex}
+% \end{table}
+%
+% Plain \TeX\ can also very simply take the integer quotient
+% of a counter, with the |\divide| operator, like so:
+%
+% \begin{quote}
+% |\divide\thiscounter by4|
+% \end{quote}
+%
+% However, this destroys the original value of
+% |\thiscounter| (or whatever else one is dividing).  The
+% |modulus| package therefore also provides another macro,
+% \DescribeMacro{\quotient}|\quotient|, which
+% non-destructively takes the integer quotient of two
+% numbers and stores it in the counter
+% \DescribeMacro{\intquotient}|\intquotient|:
+%
+% \begin{quote}
+% |\quotient{365}{4}\leavevmode\the\intquotient|: \quotient{365}{4}\leavevmode\the\intquotient\\
+% |\modulo{365}{4}\leavevmode\the\remainder|: \modulo{365}{4}\leavevmode\the\remainder
+% \end{quote}
+%
+% Note that if |\the\thecounter| doesn't print as expected,
+% it may be because you're still in vertical mode (the
+% |\the| operator only works in horizontal mode), so try
+% |\leavevmode| before printing the counter.
+%
+% \section{Implementation}
+%
+% Not much to this one.  We define our counter to hold the
+% eventual modulus:
+%    \begin{macrocode}
+\newcount\remainder%
+%    \end{macrocode}
+% Then we define the macro which will assign the modulus to
+% that counter:
+%    \begin{macrocode}
+\def\modulo#1#2{%
+	\remainder=#1%
+	\divide\remainder by#2%
+	\multiply\remainder by#2%
+	\multiply\remainder by-1%
+	\advance\remainder by#1\relax%
+}%
+%    \end{macrocode}
+% Then, for good measure, we also have a macro which will
+% non-destructively take the integer quotient of a division, and
+% store it in the counter |\intquotient|:
+%    \begin{macrocode}
+\newcount\intquotient%
+\def\quotient#1#2{%
+	\intquotient=#1%
+	\divide\intquotient by#2%
+}%
+%    \end{macrocode}
+% Happy \TeX{}ing!
diff --git a/Master/texmf-dist/source/generic/modulus/modulus.ins b/Master/texmf-dist/source/generic/modulus/modulus.ins
new file mode 100644
index 00000000000..223fc5e85c8
--- /dev/null
+++ b/Master/texmf-dist/source/generic/modulus/modulus.ins
@@ -0,0 +1,65 @@
+% +AMDG
+% This document was begun on 12 Apr 1202, the feast of St.
+% Justin Martyr, and it is humbly dedicated to him and to
+% the Immaculate Heart of Mary, for their prayers, and to
+% the Sacred Heart of Jesus, for His mercy.
+%
+% This document is copyright 2018 by Donald P. Goodman, and is
+% released publicly under the LaTeX Project Public License.  The
+% distribution and modification of this work is constrained by the
+% conditions of that license.  See
+% 	http://www.latex-project.org/lppl.txt
+% for the text of the license.  This document is released
+% under version 1.3c of that license, and this work may be distributed
+% or modified under the terms of that license or, at your option, any
+% later version.
+% 
+% This work has the LPPL maintenance status 'maintained'.
+% 
+% The Current Maintainer of this work is Donald P. Goodman
+% (dgoodmaniii@gmail.com).
+% 
+% This work consists of modulus.dtx, modulus.ins, and
+% derived files modulus.sty and modulus.pdf.
+
+\input docstrip.tex
+
+\preamble
+This is a generated file.
+
+This document is copyright 2018 by Donald P. Goodman, and is
+released publicly under the LaTeX Project Public License.  The
+distribution and modification of this work is constrained by the
+conditions of that license.  See
+	http://www.latex-project.org/lppl.txt
+for the text of the license.  This document is released
+under version 1.3 of that license, and this work may be distributed
+or modified under the terms of that license or, at your option, any
+later version.
+
+This work has the LPPL maintenance status 'maintained'.
+
+The Current Maintainer of this work is Donald P. Goodman
+(dgoodmaniii@gmail.com).
+
+This work consists of modulus.dtx, modulus.ins, and
+derived files modulus.sty and modulus.pdf.
+\endpreamble
+
+\keepsilent
+\generate{\file{modulus.sty}{\from{modulus.dtx}{package}}}
+
+\Msg{******************************************************}
+\Msg{*}
+\Msg{* To finish the installation you have to move the}
+\Msg{* following file into a directory searched by TeX:}
+\Msg{*}
+\Msg{* \space\space modulus.sty}
+\Msg{*}
+\Msg{* To produce the documentation run the file modulus.dtx}
+\Msg{* through LaTeX.}
+\Msg{*}
+\Msg{* Happy TeXing!}
+\Msg{******************************************************}
+
+\endbatchfile
diff --git a/Master/texmf-dist/tex/generic/modulus/modulus.sty b/Master/texmf-dist/tex/generic/modulus/modulus.sty
new file mode 100644
index 00000000000..92aff90297a
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/modulus/modulus.sty
@@ -0,0 +1,45 @@
+%%
+%% This is file `modulus.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% modulus.dtx  (with options: `package')
+%% This is a generated file.
+%% 
+%% This document is copyright 2018 by Donald P. Goodman, and is
+%% released publicly under the LaTeX Project Public License.  The
+%% distribution and modification of this work is constrained by the
+%% conditions of that license.  See
+%% http://www.latex-project.org/lppl.txt
+%% for the text of the license.  This document is released
+%% under version 1.3 of that license, and this work may be distributed
+%% or modified under the terms of that license or, at your option, any
+%% later version.
+%% 
+%% This work has the LPPL maintenance status 'maintained'.
+%% 
+%% The Current Maintainer of this work is Donald P. Goodman
+%% (dgoodmaniii@gmail.com).
+%% 
+%% This work consists of modulus.dtx, modulus.ins, and
+%% derived files modulus.sty and modulus.pdf.
+
+\NeedsTeXFormat{LaTeX2e}[1999/12/01]
+\ProvidesPackage{modulus}[2018/05/07 v1.0 Modulus/modulo operator in plain TeX]
+\newcount\remainder%
+\def\modulo#1#2{%
+\remainder=#1%
+\divide\remainder by#2%
+\multiply\remainder by#2%
+\multiply\remainder by-1%
+\advance\remainder by#1\relax%
+}%
+\newcount\intquotient%
+\def\quotient#1#2{%
+\intquotient=#1%
+\divide\intquotient by#2%
+}%
+\endinput
+%%
+%% End of file `modulus.sty'.
diff --git a/Master/tlpkg/bin/tlpkg-ctan-check b/Master/tlpkg/bin/tlpkg-ctan-check
index f3983cd7b96..5246474e17f 100755
--- a/Master/tlpkg/bin/tlpkg-ctan-check
+++ b/Master/tlpkg/bin/tlpkg-ctan-check
@@ -434,7 +434,8 @@ my @TLP_working = qw(
     minted mintspirit minutes missaali
     mkgrkindex mkjobtexmf mkpattern mkpic
     mla-paper mlist mmap mnotes mnras mnsymbol
-    moderncv modernposter moderntimeline modiagram modref modroman modular
+    moderncv modernposter moderntimeline modiagram
+    modref modroman modular modulus
     mongolian-babel montserrat
     monofill montex moodle
     moreenum morefloats morehype moresize
diff --git a/Master/tlpkg/tlpsrc/collection-plaingeneric.tlpsrc b/Master/tlpkg/tlpsrc/collection-plaingeneric.tlpsrc
index c9ef3355ec2..d234e7b0a79 100644
--- a/Master/tlpkg/tlpsrc/collection-plaingeneric.tlpsrc
+++ b/Master/tlpkg/tlpsrc/collection-plaingeneric.tlpsrc
@@ -56,6 +56,7 @@ depend mathdots
 depend metatex
 depend midnight
 depend mkpattern
+depend modulus
 depend multido
 depend navigator
 depend newsletr
diff --git a/Master/tlpkg/tlpsrc/modulus.tlpsrc b/Master/tlpkg/tlpsrc/modulus.tlpsrc
new file mode 100644
index 00000000000..e69de29bb2d
--- /dev/null
+++ b/Master/tlpkg/tlpsrc/modulus.tlpsrc