<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">%% 
%%  Ein Beispiel der DANTE-Edition
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%%  1. Auflage
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%%  Beispiel 09-07-8 auf Seite 444.
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%%  Copyright (C) 2011 Herbert Voss
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%%  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.
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\documentclass[leqno]{exaarticle}
\pagestyle{empty}
\setlength\textwidth{352.81416pt}
\AtBeginDocument{\setlength\parindent{0pt}}
\setcounter{equation}{30}
\renewcommand\theequation{9.\arabic{equation}}
\StartShownPreambleCommands
\usepackage{amsmath}
\StopShownPreambleCommands
\begin{document}
\begin{alignat}{2}
y      &amp;= d              &amp; z &amp;= 1                    \\ % &lt;=== 3 mal &amp;
y      &amp;= cx+d           &amp; z &amp;= x+1         \nonumber\\
y_{12} &amp;= bx^2+cx+d      &amp; z &amp;= x^2+x+1     \nonumber\\
y(x)   &amp;= ax^3+bx^2+cx+d &amp; z &amp;= x^3+x^2+x+1
\end{alignat}
\end{document}
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