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+%%
+%% Ein Beispiel der DANTE-Edition
+%%
+%% 2. Auflage
+%%
+%% Beispiel 09-08-32 auf Seite 461.
+%%
+%% Copyright (C) 2016 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{193.16928pt}
+\AtBeginDocument{\setlength\parindent{0pt}}
+%StartShownPreambleCommands
+\usepackage{gauss}
+\makeatletter\def\g@post{$}\makeatother
+%StopShownPreambleCommands
+\begin{document}
+$\begin{gmatrix}[b]
+ 1 & 2 & -3\\ 0.1 & 0.2 & -1\\
+ -0.5 &-1 & \frac{3}{2}
+\rowops\mult{0}{\cdot(-0.1)}
+\add{0}{1}\swap{1}{2}
+\end{gmatrix}$\\[2ex]
+$\begin{gmatrix}[b]
+ 1 & 2 & -3\\ -0.5 &-1 & \frac{3}{2}\\
+ 0 & 0 & -0.7
+\rowops\mult{0}{\cdot0.5}\add{0}{1}
+\end{gmatrix}$
+\end{document}