%%
%% This is file `subeqnarray.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% subeqnarray.dtx  (with options: `package')
%% 
%% Copyright (C) 1999-2024 Johannes Braams. All rights reserved.
%% 
%% This file was generated from file(s) of the subeqnarray package.
%% ----------------------------------------------------------------
%% 
%% It may be distributed and/or modified under the
%% conditions of the LaTeX Project Public License, either version 1.3c
%% 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 1.3c or later is part of all distributions of LaTeX
%% version 2008 or later.
%% 
%% This work has the LPPL maintenance status "maintained".
%% 
%% The Current Maintainer of this work is Johannes Braams.
%% 
%% This file may only be distributed together with a copy of the
%% subeqnarray package. You may however distribute the subeqnarray
%% package without such generated files.
%% 
%% The list of all files belonging to the subeqnarray package is
%% given in the file `manifest.txt.
%% 
%% The list of derived (unpacked) files belonging to the distribution
%% and covered by LPPL is defined by the unpacking scripts (with
%% extension .ins) which are part of the distribution.
%%
%% Error reports please to: J. Braams
%%                          TeXniek
%%                  Email:  texniek at texniek.nl
\NeedsTeXFormat{LaTeX2e}[1998/06/01]
\ProvidesPackage{subeqnarray}
              [2024/07/20 v2.1e subeqnarray package]
\newcounter{subequation}[equation]
\def\thesubequation{\theequation\alph{subequation}}
\DeclareOption{leqno}{%
  \def\@subeqnnum{\hbox to .01\p@{}\rlap{\reset@font\rmfamily
        \hskip -\displaywidth(\thesubequation)}}}
\DeclareOption{reqno}{%
  \def\@subeqnnum{{\reset@font\rmfamily (\thesubequation)}}}
\DeclareOption{fleqn}{%
  \def\subeqn@start{%
    \tabskip\mathindent
    \abovedisplayskip\topsep
    \ifvmode\advance\abovedisplayskip\partopsep\fi
    \belowdisplayskip\abovedisplayskip
    \belowdisplayshortskip\abovedisplayskip
    \abovedisplayshortskip\abovedisplayskip
    $$\everycr{}\halign to \linewidth}}% $$
\DeclareOption{deqn}{%
  \def\subeqn@start{%
    \tabskip\@centering
    $$\everycr{}\halign to \displaywidth}}% $$
\DeclareOption*{\OptionNotUsed}
\ExecuteOptions{reqno,deqn}
\ProcessOptions
\newcommand\slabel[1]{%
  \@bsphack
  \if@filesw
    {\let\thepage\relax
     \def\protect{\noexpand\noexpand\noexpand}%
     \edef\@tempa{\write\@auxout{\string
        \newlabel{#1}{{\thesubequation}{\thepage}}}}%
     \expandafter}\@tempa
     \if@nobreak \ifvmode\nobreak\fi\fi
  \fi\@esphack}
\newenvironment{subeqnarray}%
   {\stepcounter{equation}%
    \def\@currentlabel{\p@equation\theequation}%
    \global\c@subequation\@ne
    \global\@eqnswtrue\m@th
    \global\@eqcnt\z@\let\\\@subeqncr
    \subeqn@start
     \bgroup\hskip\@centering
      $\displaystyle\tabskip\z@skip{##}$\@eqnsel
      &\global\@eqcnt\@ne \hskip \tw@\arraycolsep \hfil${##}$\hfil
      &\global\@eqcnt\tw@ \hskip \tw@\arraycolsep
         $\displaystyle{##}$\hfil \tabskip\@centering
      &\global\@eqcnt\thr@@
         \hbox to\z@\bgroup\hss##\egroup\tabskip\z@skip\cr}
   {\@@subeqncr\egroup $$\global\@ignoretrue}
\def\@subeqncr{{\ifnum0=`}\fi\@ifstar{\global\@eqpen\@M
    \@ysubeqncr}{\global\@eqpen\interdisplaylinepenalty \@ysubeqncr}}
\def\@ysubeqncr{\@ifnextchar [{\@xsubeqncr}{\@xsubeqncr[\z@skip]}}
\def\@xsubeqncr[#1]{\ifnum0=`{\fi}\@@subeqncr
   \noalign{\penalty\@eqpen\vskip\jot\vskip #1\relax}}
\def\@@subeqncr{\let\@tempa\relax
    \ifcase\@eqcnt \def\@tempa{& & &}\or \def\@tempa{& &}
      \or \def\@tempa{&}\else
       \let\@tempa\@empty
       \@latexerr{Too many columns in subeqnarray environment}\@ehc\fi
     \@tempa \if@eqnsw\@subeqnnum\refstepcounter{subequation}\fi
     \global\@eqnswtrue\global\@eqcnt\z@\cr}
\newenvironment{subeqnarray*}%
  {\def\@subeqncr{\nonumber\@ssubeqncr}\subeqnarray}
  {\global\advance\c@equation\m@ne\nonumber\endsubeqnarray}
\let\@ssubeqncr\@subeqncr
\endinput
%%
%% End of file `subeqnarray.sty'.