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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{190.324pt}
\setlength\parindent{0pt}
\StartShownPreambleCommands
\usepackage{pstricks-add}
\StopShownPreambleCommands
\begin{document}
\psset{unit=5,method=rk4,algebraic=true,whichabs=0,whichord=1,plotpoints=500,
linewidth=1pt}
\begin{pspicture}(-1.2,-0.2)(1.2,0.2)
\psgrid[subgriddiv=5,subgridcolor=black!10,gridlabels=7pt](-1.2,-0.2)(1.2,0.2)
\psplotDiffEqn[linecolor=red]{0}{12}{0 0 0 0}{%
y[2]|y[3]|2*Pi*y[3]|4*cos(0.2*Pi*x)-2*Pi*y[2]}
\end{pspicture}
\end{document}
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