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%%
%% Ein Beispiel der DANTE-Edition
%%
%%
%% 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{166.324pt}
\setlength\parindent{0pt}
\StartShownPreambleCommands
\usepackage{pstricks-add}
\StopShownPreambleCommands
\begin{document}
\psset{unit=0.5cm}
\begin{pspicture}(-5,-4)(5,5)
\psaxes[dx=2,dy=2,Dx=2,Dy=2]{->}(0,0)(-5,-4)(5,5)
\psline[linecolor=red](-5,-1)(5,5)
\psline[linecolor=blue](-5,4)(5,-4)
\qdisk(-5,-1){3pt}\uput[-90](-5,-1){A}
\qdisk(5,5){3pt} \uput[-90](5,5){B}
\qdisk(-5,4){3pt} \uput[-90](-5,4){C}
\qdisk(5,-4){3pt} \uput[-90](5,-4){D}
\psIntersectionPoint(-5,-1)(5,5)(-5,4)(5,-4){P}
\qdisk(P){2pt} \uput{0.3}[90](P){P}
\psline[linestyle=dashed](P|0,0)(P)(0,0|P)
\end{pspicture}
\end{document}
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