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\documentclass[DIV=7, pagesize=auto]{scrartcl}
\usepackage{fixltx2e}
\usepackage{etex}
\usepackage{lmodern}
\usepackage[T1]{fontenc}
\usepackage{textcomp}
\usepackage{microtype}
\usepackage[unicode=true]{hyperref}
\newcommand*{\pkg}[1]{\textsf{#1}}
\newcommand*{\cs}[1]{\texttt{\textbackslash#1}}
\makeatletter
\newcommand*{\cmd}[1]{\cs{\expandafter\@gobble\string#1}}
\makeatother
\newcommand*{\meta}[1]{\textlangle\textsl{#1}\textrangle}
\newcommand*{\marg}[1]{\texttt{\{}\meta{#1}\texttt{\}}}
\newcommand*{\oarg}[1]{\texttt{[}\meta{#1}\texttt{]}}
\newcommand*{\ml}[1]{\leavevmode\marginline{\small#1}\ignorespaces}
\reversemarginpar
\addtokomafont{title}{\rmfamily}
\title{The \pkg{chngcntr} package\thanks{This manual corresponds to \pkg{chngcntr}~v1.0a, dated~2009/09/02.}}
\author{Author: Peter Wilson\and Maintainer: Will Robertson}
\date{2009/09/02}
\begin{document}
\maketitle
\section{Usage}
In \LaTeX, a new counter called, say `\meta{ctr}', is created by the command
\cmd{\newcounter}\marg{ctr}\oarg{within}. If the optional \meta{within} argument is given
the the counter `\meta{ctr}' is reset to zero each time the counter `\meta{within}'
changes. The command \cmd{\the\meta{ctr}} typesets the value of the counter \meta{ctr}.
This is automatically defined by \cmd{\newcounter} and is initialised
to typeset arabic numerals.
\ml{\cmd{\counterwithin}\\\cmd{\counterwithin*}}
It is sometimes desireable to change a counter that has been defined
by \cmd{\newcounter}\marg{ctr} to act as though it had been defined as
\cmd{\newcounter}\marg{ctr}\oarg{within}. The package provides the command
\cmd{\counterwithin}\marg{ctr}\marg{within} that accomplishes this. By default,
it also redefines the \cmd{\the\meta{ctr}} command so that it typesets values
in the style \texttt{\cmd{\the\meta{within}}.\cmd{\arabic}\marg{ctr}}. The starred version of the
command suppresses the redefinition of \cmd{\the\meta{ctr}}
(e.\,g., \cmd{\counter\-within*}\verb+{ctr}{within}+).
\ml{\cmd{\counterwithout}\\\cmd{\counterwithout*}}
Likewise, the command \cmd{\counterwithout}\marg{ctr}\marg{within} changes a
counter that has been created by \cmd{\newcounter}\marg{ctr}\oarg{within} to act
as though it had been created by \cmd{\newcounter}\marg{ctr}. By default it
also redefines the \cmd{\the\meta{ctr}} command so that it just typesets an arabic
numeral. The starred version of the command suppresses the redefinition
of \cmd{\the\meta{ctr}}.
Any number of \cmd{\counterwithin}\marg{ctr}\marg{\ldots} and \cmd{\counterwith\-out}\marg{ctr}\marg{\ldots}
commands can be issued for a given counter, \meta{ctr}, if you wish to toggle
between the two styles. The current value of \meta{ctr} is unaffected by
\cmd{\counterwithin} and \cmd{\counterwithout}. If you want to change the value
after one of these commands, use \cmd{\set\-counter}\marg{ctr}\marg{\ldots}, and to change
the typeseting style use \cmd{\renew\-command}\texttt{\{}\cmd{\the\meta{ctr}}\texttt{\}}\marg{\ldots}.
\section{Change History:}
\begin{tabular}{@{}l@{ -- }l@{}}
v1.0a & New maintainer (Will Robertson)
\end{tabular}
\end{document}
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