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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{pst-plot,multido}\SpecialCoor
\StopShownPreambleCommands
\begin{document}
\newcommand\drawseg[2]{%
\pscustom[linecolor=red]{%
\translate(#1,#2) \rotate{(#2,#1)} % Vector in direction of field at x=#1,y=#2
\psline(-.25,0)(.25,0)}}
\psscalebox{0.7}{%
\begin{pspicture}(-5,-5)(5.5,5.5) \psset{arrows=->,arrowscale=1.5}
\psaxes[linestyle=dashed,linewidth=0.1pt,arrowscale=3](0,0)(-5,-5)(5.5,5.5)
\multido{\n=-5+1}{11}{\multido{\N=-5+1}{11}{%
\ifnum\N=0\relax \ifnum\n=0\relax \else\drawseg{\n}{\N}\fi
\else\drawseg{\n}{\N}\fi}}
\end{pspicture}}
\end{document}
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