<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">%% 
%%  An UIT Edition example
%% 
%%  Example 04-01-1 on page 32.
%% 
%%  Copyright (C) 2010 Herbert Voss
%% 
%%  It 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.
%% 
%%  See http://www.latex-project.org/lppl.txt for details.
%% 
%% 
%% ==== 
% Show page(s) 1
%% 
\documentclass[]{exaarticle}
\pagestyle{empty}
\setlength\textwidth{201.70511pt}
\AtBeginDocument{\setlength\parindent{0pt}}
\setcounter{equation}{0}
\renewcommand\theequation{4.\arabic{equation}}
\StartShownPreambleCommands

\StopShownPreambleCommands
\begin{document}
\begin{equation}
\begin{array}{@{} rcl @{}}
\mathrm{right} &amp; \mathrm{centre}
  &amp; \mathrm{left} \\[10pt]
 a &amp; b &amp; c                     \\\hline
 1 &amp; 2 &amp; 3                     \\\cline{2-3}
 A &amp; \multicolumn{2}{|c|}{B C} \\\cline{2-3}
\end{array}
\end{equation}
\end{document}
</pre></body></html>