%% 
%%  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{190.324pt}
\setlength\parindent{0pt}
\StartShownPreambleCommands
\usepackage{pst-plot}
\StopShownPreambleCommands
\begin{document}
\psset{plotpoints=200,unit=0.3,labelFontSize=\scriptstyle}
\begin{pspicture}(-8.5,-8.5)(9,9)% Ulrich Dirr
  \psaxes[Dx=2,dx=2,Dy=2,dy=2,labelsep=.75mm,%
    arrowlength=1.75,ticksize=2pt,linewidth=0.17mm]%
      {->}(0,0)(-8.5,-8.5)(9,9)
  \rput[Br](9,-.7){$x$} \rput[tr](-.3,9){$y$} \rput[Br](-.3,-.7){$0$}

  \psset{linewidth=.35mm,plotstyle=curve,polarplot}
  \psplot[linecolor=blue]{0}{720}{8 2.5 x mul sin mul}
\end{pspicture}
\end{document}