%% 
%%  A DANTE-Edition example
%% 
%%  Example 15-01-80 on page 197.
%% 
%%  Copyright (C) 2011 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[]{article}
\pagestyle{empty}
\setlength\textwidth{201.70511pt}
\setlength\parindent{0pt}

\usepackage{pst-plot}

\begin{document}
\begin{pspicture}(-7,-1.5)(7,1.5)
  \psaxes[trigLabels,xunit=\psPi]{->}(0,0)(-2.2,-1.5)(2.2,1.5)
  \psplot[linewidth=1.5pt,plotpoints=1000]{-7}{7}{x dup add RadtoDeg sin}
\end{pspicture}

\medskip
\begin{pspicture}(-7,-1.5)(7,1.5)
  \psaxes[trigLabels,trigLabelBase=2,dx=\psPiH,
    xunit=\psPi]{->}(0,0)(-2.2,-1.5)(2.2,1.5)
  \psplot[linewidth=1.5pt,plotpoints=1000]{-7}{7}{x dup mul RadtoDeg sin}
\end{pspicture}
\end{document}
