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%%
%% Ein Beispiel der DANTE-Edition
%%
%% 1. Auflage
%%
%% Beispiel 09-08-32 auf Seite 486.
%%
%% Copyright (C) 2011 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{190.324pt}
\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}
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