<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 10-02-1 on page 200.
%% 
%%  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{375.57637pt}
\AtBeginDocument{\setlength\parindent{0pt}}
\setcounter{equation}{0}
\renewcommand\theequation{10.\arabic{equation}}
\StartShownPreambleCommands

\StopShownPreambleCommands
\begin{document}
\begin{equation}\addtolength{\arraycolsep}{-3pt}
I(z)=\delta_{0}\left\{\begin{array}{lcrcl}
 D+z &amp; \quad &amp; -D &amp; \le z\le &amp; -p\\
 D-\frac{1}{2}\left(p-\frac{z^{2}}{p}\right)
     &amp; \quad &amp; -p &amp; \le z\le &amp; \phantom{-}p\\
 D-z &amp; \quad &amp; p &amp; \le z\le &amp; \phantom{-}D
\end{array}\right.
\end{equation}
\end{document}
</pre></body></html>