%% 
%%  Ein Beispiel der DANTE-Edition
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%%  7. Auflage
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%%  Beispiel 35-00-68 auf Seite 845.
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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.
%% 
%% 
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% Show page(s) 1
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\documentclass[]{exaarticle}
\pagestyle{empty}
\setlength\textwidth{352.81416pt}
\setlength\parindent{0pt}
%StartShownPreambleCommands
\usepackage{pstricks,pst-plot}
%StopShownPreambleCommands
\begin{document}
\psset{xunit=0.025cm}
\begin{pspicture}(-30,-2)(425,2)
\psaxes[Dx=30]{->}(0,0)(0,-2)(420,2)
\uput[0](420,0){$\alpha$}\uput[180](0,2.2){$f(\alpha)$}
\psplot[linewidth=2pt,linecolor=green,linestyle=dotted]{0}{390}{x sin}
\psplot[linewidth=1pt,linecolor=blue,linestyle=dashed]{0}{390}{x 2 mul 30 sub sin neg}
\psplot[linewidth=1pt,linecolor=red]{0}{390}{x 2 mul 30 sub sin neg x sin add}
\end{pspicture}
\end{document}