%% 
%%  The LaTeX Graphics Companion, 2ed (first printing May 2007)
%% 
%%  Example 6-1-28 on page 323.
%% 
%%  Copyright (C) 2007 Michel Goossens, Frank Mittelbach, Denis Roegel, Sebastian Rahtz, Herbert Vo\ss 
%% 
%%  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.
%% 

\documentclass{ttctexa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{207.83385pt}
\StartShownPreambleCommands
\usepackage{pstricks,pst-plot,ifthen,calc}
\newcounter{temp}
\renewcommand\pshlabel[1]{\small%
  \ifthenelse{\isodd{#1}}{$\frac{#1}{2}\pi$}
             {\setcounter{temp}{#1/2}$\thetemp\pi$}}
\StopShownPreambleCommands
\begin{document}
\begin{pspicture}(-0.5,-1.25)(10,1.25)
  \psaxes[xunit=1.570796327,showorigin=false]{->}(0,0)(-0.5,-1.25)(6.4,1.25)
  \psplot[linecolor=blue,linewidth=1.5pt]{0}{9.424777961}{x RadtoDeg sin}
\end{pspicture}
\end{document}