%% 
%%  Ein Beispiel der DANTE-Edition
%%  
%%  7. Auflage
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%%  Beispiel 05-01-1 auf Seite 64.
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%%  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{145.16928pt}
\setlength\parindent{0pt}
%StartShownPreambleCommands
\usepackage{pstricks}  
%StopShownPreambleCommands
\begin{document}
\begin{pspicture}[showgrid=true](3,3)
 \psline[linewidth=3pt,linecolor=blue](3;50)(0,0)(3;10)
 \psarc[arcsep=3pt,linecolor=red]{->}{2.5}{10}{50}
 \pscircle(3;80){0.25} \psarc[arcsepA=3pt,arcsepB=0.25cm,
     linecolor=red]{->}{3}{10}{80}
\end{pspicture}
\end{document}