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%%
%% This is file `exercise.sty' generated
%% on <1991/12/4> with the docstrip utility (v1.1l test).
%%
%% The original source file was `exercise.doc'.
%%
%%
%% Copyright (C) 1991 by Anselm Lingnau. All rights reserved.
%%
%% IMPORTANT NOTICE:
%%
%% You are not allowed to change this file. You may however copy this file
%% to a different name and then change this copy.
%%
%% You are allowed to distribute this file under the condition that it is
%% distributed together with all files mentioned in the appropriate README
%% file. If you received only some of these files from someone, complain!
%%
%% You are NOT ALLOWED to distribute this file alone. You are NOT ALLOWED
%% to take money for the distribution or use of this file (or a changed
%% version) except for some nominal charge for copying etc.
%%
%% Error Reports in case of UNCHANGED versions to
%%
%% Anselm Lingnau
%% Buchenweg 1
%% D-6239 Eppstein 2
%% Federal Republic of Germany
%% Internet: <lingnau@informatik.uni-frankfurt.de>
%%
\def\fileversion{v1.0c}
\def\filedate{91/10/08}
\def\docdate{91/10/08}
%% \CheckSum{139}
%% \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 \~}
%%
%% Style-option `exercise' to use with LaTeX v2.09
%% Copyright (C) 1991 by Anselm Lingnau, all rights reserved.
\@ifundefined{exercise}{}{\endinput}
\wlog{Style-Option: `exercise'
\fileversion \space <\filedate> (AL)}
\wlog{English Documentation
\@spaces \@spaces \space <\docdate> (AL)}
\newcounter{exercise}
\newif\if@exnofixed
\def\numberexercises#1{%
\if@exnofixed\@warning{Exercise numbering already fixed}
\else\@addtoreset{exercise}{#1}%
\renewcommand{\theexercise}{\csname
the#1\endcsname--\arabic{exercise}}\fi
\@exnofixedtrue}
\def\exercisehead#1#2{\def\exercise@head{#1{\theexercise}#2}}
\exercisehead{\bf}{}
\def\exenvname{exercise}
\def\exercise{\medbreak\@exnofixedtrue
\refstepcounter{exercise}\trivlist\item[]{\exercise@head}}
\def\endexercise{\endtrivlist}
\def\answer{%
\ifx\@currenvir\exenvname\let\next\@answer
\else\let\next\@answererr\fi\next}
\def\@answererr{\errhelp{There may be no unmatched `\begin' between
the^^J`\begin{exercise}' and `\answer'.}%
\errmessage{LaTeX error: Wrong \string\answer\space (current
environment is `\@currenvir')}%
\edef\@tempa{{\@currenvir}} \expandafter\end\@tempa \answer}
\def\@answer{%
\immediate\write\ans{\string\ansno{\theexercise}}
\let\do\@makeother\dospecials \catcode`\^^M\active
\let\verbatim@processline=\answer@processline
\verbatim@start}
\def\answer@processline{\immediate\write\ans{\the\verbatim@line}}
\def\exercisetitle{Exercises}
\@ifundefined{chapter}{\let\exsection\subsection}%
{\let\exsection\section}
\newenvironment{exercises}{\exsection*{\exercisetitle}}{}
\newwrite\ans
\immediate\openout\ans=\jobname.ans
\typeout{Writing answers to \jobname.ans.}
\def\listanswers{\immediate\closeout\ans \input\jobname.ans\relax}
\def\ansno#1{\par{\def\theexercise{#1}\exercise@head}}
\endinput
%%
%% End of file `exercise.sty'.
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