<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
%%  
%%  7. Auflage
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%%  Beispiel 29-02-6 auf Seite 638.
%% 
%%  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
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\documentclass[]{exaarticle}
\pagestyle{empty}
\setlength\textwidth{169.16928pt}
\setlength\parindent{0pt}
%StartShownPreambleCommands
\usepackage{pstricks-add}
%StopShownPreambleCommands
\begin{document}
\psset{unit=0.5cm}\begin{pspicture*}(-5,-4)(5,3.5)
  \pnode(2,-2){F}\qdisk(F){1.5pt}
  \pnode(-5,5){A}\pnode(0,0){O}
  \multido{\nA=-2.4+0.4}{9}{%
    \psParallelLine[linecolor=red](O)(A)(0,\nA){9}{P1}
    \psline[linecolor=red](0,\nA)(F)
    \psRelLine[linecolor=red](0,\nA)(F){9}{P2}}
  \psline[linecolor=blue](A)(F)
  \psRelLine[linecolor=blue](A)(F){5}{END1}
  \qdisk(A){2pt}\qdisk(O){2pt}
\end{pspicture*}
\end{document}
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