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\documentclass[a4paper]{jsarticle}
\usepackage[nohyperref]{doc}% doc v3
\usepackage{delarray}
\usepackage{plextdelarray}
\GetFileInfo{plextdelarray.sty}
\title{Package \textsf{plextdelarray} \fileversion}
\author{Hironobu Yamashita}
\date{\filedate}
\begin{document}

\maketitle

Package \textsf{delarray}, included in \textsf{latex-tools} bundle, is
incompatible with \textsf{plext} package for p\LaTeX.
The package \textsf{plextarray} resolves this incompatibility,
and enables coexistence of both extensions provided by \textsf{plext}
and \textsf{delarray}. If you are not familiar with Japanese p\LaTeX\
and \textsf{plext} package, please find the documentation of
\textsf{plextarray} for brief explanation.

This package is part of \textsf{platex-tools} bundle:
\begin{verbatim}
  https://github.com/aminophen/platex-tools
\end{verbatim}

The rest of this document is written in Japanese, and includes some
examples of usage.

\bigskip

\textsf{latex-tools}ãƒãƒ³ãƒ‰ãƒ«ã«å«ã¾ã‚Œã‚‹\textsf{delarray}ãƒ‘ãƒƒã‚±ãƒ¼ã‚¸ã¯ã€
p\LaTeX ã®æ‹¡å¼µãƒ‘ãƒƒã‚±ãƒ¼ã‚¸ã§ã‚ã‚‹\textsf{plext}ãƒ‘ãƒƒã‚±ãƒ¼ã‚¸ã¨äº’æ›æ€§ãŒã‚ã‚Šã¾ã›ã‚“ã€‚
ã“ã®\textsf{plextdelarray}ãƒ‘ãƒƒã‚±ãƒ¼ã‚¸ã¯ã€\textsf{plext}ãƒ‘ãƒƒã‚±ãƒ¼ã‚¸ã®çµ„æ–¹å‘
ã‚ªãƒ—ã‚·ãƒ§ãƒ³æ‹¡å¼µã¨\textsf{delarray}ãƒ‘ãƒƒã‚±ãƒ¼ã‚¸ã®æ‹¡å¼µã®ä¸¡æ–¹ã‚’ã€Œä¸€å¿œä½¿ãˆã‚‹ã€çŠ¶æ…‹
ã«ã™ã‚‹ã‚‚ã®ã§ã™ã€‚ãŸã&nbsp;ã—ã€\textsf{plext}ã®å†…éƒ¨å®Ÿè£…ã®éƒ½åˆä¸Šã€\textsf{delarray}ã¨
å®Œå…¨ã«åŒã˜çµæžœã«ãªã‚‰ãªã„å&nbsp;´åˆãŒã‚ã‚‹ã‹ã‚‚ã—ã‚Œã¾ã›ã‚“\footnote{æœ¬ãƒ‘ãƒƒã‚±ãƒ¼ã‚¸ã¯
ã€Œ\textsf{delarray}ã‚’èª­ã¿è¾¼ã‚“ã&nbsp;ã&nbsp;ã‘ã§\textsf{plext}ã®éƒ¨åˆ†çš„ãªç¸¦æ›¸ãæ©Ÿèƒ½ãŒ
ã™ã¹ã¦ä½¿ãˆãªããªã£ã¦ã—ã¾ã£ã¦å›°ã£ãŸã€ã¨ã„ã†å&nbsp;´åˆã®ã€ã‚ãã¾ã§éžå¸¸æ‰‹æ®µã¨ã„ã†
ç¨‹åº¦ã«ã¨ã‚‰ãˆã¦ãã&nbsp;ã•ã„ã€‚}ã€‚

\section{ä½¿ã„ã‹ãŸ}

\textsf{plext}ã¨\textsf{delarray}ã‚’å…±å­˜ã•ã›ãŸã„ã¨ãã«ã€ãƒ—ãƒªã‚¢ãƒ³ãƒ–ãƒ«ã«
\verb+\usepackage{plextdelarray}+ã¨æ›¸ãã¾ã™ã€‚æ—¢ã«ã„ãšã‚Œã‹ã®ãƒ‘ãƒƒã‚±ãƒ¼ã‚¸ãŒ
èª­ã¿è¾¼ã¾ã‚Œã¦ã„ã¦ã‚‚å•é¡Œã‚ã‚Šã¾ã›ã‚“ã€‚ã¾ãŸã€\textsf{plextdelarray}ãƒ‘ãƒƒã‚±ãƒ¼ã‚¸ã‚’
èª­ã¿è¾¼ã‚ã°ã€\textsf{plext}ã¨\textsf{delarray}ã‚‚è‡ªå‹•çš„ã«èª­ã¿è¾¼ã¾ã‚Œã¾ã™ã€‚
ã¾ãŸã€\textsf{plextarray}ãƒ‘ãƒƒã‚±ãƒ¼ã‚¸ã‚‚èª­ã¿è¾¼ã¿ã¾ã™ã€‚

ä»¥ä¸‹ã«ä¾‹ã‚’ç¤ºã—ã¾ã™ã€‚å·¦å´ãŒ\textsf{delarray}ã®æ©Ÿèƒ½ã§å·¦å³æ‹¬å¼§ã‚’ä»˜ã‘ãŸã‚‚ã®ã€
å³å´ãŒé€šå¸¸ã®\textsf{array}ã®æ©Ÿèƒ½ã§å·¦å³æ‹¬å¼§ã‚’ä»˜ã‘ãŸã‚‚ã®ã§ã™ã€‚
ç‰¹ã«\verb+[t]+ã¨\verb+[b]+ã¯ã€\textsf{delarray}ãªã—ã§ã¯å®Ÿç¾ã§ããªã„
ã‚ˆã†ã§ã™ï¼ˆä¾‹ã¯\textsf{delarray}ã®ãƒ‰ã‚­ãƒ¥ãƒ¡ãƒ³ãƒˆã‚’å°‘ã—æ”¹å¤‰ï¼‰ã€‚

\bigskip
\begin{minipage}{0.5\linewidth}
\begin{verbatim}
  \documentclass{jsarticle}
  %\usepackage{plext}
  %\usepackage{delarray}
  \usepackage{plextdelarray}
  \begin{document}
  \[
    \begin{array}[t]\{{c}\}
      3 \\ 4 \\ 5  \end{array}
    \begin{array}[c]\{{c}\}
      2 \\ 3 \\ 4  \end{array}
    \begin{array}[b]\{{c}\}
      1 \\ 2 \\ 3  \end{array}
  \]
  \[
    \left\{  \begin{array}[t]{c}
      3 \\ 4 \\ 5  \end{array}  \right\}
    \left\{  \begin{array}[c]{c}
      2 \\ 3 \\ 4  \end{array}  \right\}
    \left\{  \begin{array}[b]{c}
      1 \\ 2 \\ 3  \end{array}  \right\}
  \]
  \end{document}
\end{verbatim}
\end{minipage}
\begin{minipage}{0.4\linewidth}
\mbox{}\\[10ex]
  \[
    \begin{array}[t]\{{c}\}
      3 \\ 4 \\ 5  \end{array}
    \begin{array}[c]\{{c}\}
      2 \\ 3 \\ 4  \end{array}
    \begin{array}[b]\{{c}\}
      1 \\ 2 \\ 3  \end{array}
  \]
\\[5ex]
  \[
    \left\{  \begin{array}[t]{c}
      3 \\ 4 \\ 5  \end{array}  \right\}
    \left\{  \begin{array}[c]{c}
      2 \\ 3 \\ 4  \end{array}  \right\}
    \left\{  \begin{array}[b]{c}
      1 \\ 2 \\ 3  \end{array}  \right\}
  \]
\end{minipage}
\bigskip

\textsf{plext}ã¨\textsf{delarray}ã®ä¸¡æ–¹ã®æ‹¡å¼µã‚’åŒã˜ç®‡æ‰€ã§ä½¿ç”¨ã™ã‚‹ã“ã¨ã‚‚
ã§ããªãã¯ã‚ã‚Šã¾ã›ã‚“ãŒã€å½¹ã«ç«‹ã¤çŠ¶æ³ã¯å°‘ãªã„ã¨æ€ã„ã¾ã™ã€‚

\bigskip
\begin{minipage}{0.5\linewidth}
\begin{verbatim}
  \documentclass{jsarticle}
  %\usepackage{plext}
  %\usepackage{delarray}
  \usepackage{plextdelarray}
  \begin{document}
  \[
    \begin{array}&lt;t&gt;[t]\{{c}\}
      3 \\ 4 \\ 5  \end{array}
    \begin{array}&lt;t&gt;[c]\{{c}\}
      2 \\ 3 \\ 4  \end{array}
    \begin{array}&lt;t&gt;[b]\{{c}\}
      1 \\ 2 \\ 3  \end{array}
  \]
  \[
  \newcolumntype{L}{&gt;{$}l&lt;{$}}
  f(x)=
    \begin{array}&lt;t&gt;\{{lL}.
      0 &amp; if $x=0$ \\
      \sin(x)/x &amp; otherwise
    \end{array}
  \]
  \end{document}
\end{verbatim}
\end{minipage}
\begin{minipage}{0.4\linewidth}
\mbox{}\\[12ex]
  \[
    \begin{array}&lt;t&gt;[t]\{{c}\}
      3 \\ 4 \\ 5  \end{array}
    \begin{array}&lt;t&gt;[c]\{{c}\}
      2 \\ 3 \\ 4  \end{array}
    \begin{array}&lt;t&gt;[b]\{{c}\}
      1 \\ 2 \\ 3  \end{array}
  \]
\\[6ex]
  \[
  \newcolumntype{L}{&gt;{$}l&lt;{$}}
  f(x)=
    \begin{array}&lt;t&gt;\{{lL}.
      0 &amp; if $x=0$ \\
      \sin(x)/x &amp; otherwise
    \end{array}
  \]
\end{minipage}

\end{document}
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