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+%%
+%% The LaTeX Graphics Companion, 2ed (first printing May 2007)
+%%
+%% Example 5-4-2 on page 224.
+%%
+%% 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{135.83385pt}
+\AtBeginDocument{%
+\renewcommand\pshlabel[1]{\small$#1$}
+\renewcommand\psvlabel[1]{\small$#1$}}
+\StartShownPreambleCommands
+\usepackage{pstricks,pst-plot}
+\StopShownPreambleCommands
+\begin{document}
+\psset{xunit=1.5,plotpoints=200,plotstyle=dots}
+\begin{pspicture}(-1.1,-3.25)(1.5,2.6)
+ \psaxes[Dx=0.5]{->}(0,0)(-1,-3.25)(1.5,2.5)
+ \uput[-90](1.5,0){$x$}
+ \uput[0](0,2.5){$y$}
+ \rput[l](0.2,2){$\mathbf{f(x)=\arccos x}$}
+ \psset{yunit=1.5,xunit=0.666667,swapaxes=true}
+ \pstVerb{/rad {180 3.141592654 div mul} def}
+ \psplot[linecolor=blue]{-3.141592654}{0}{x rad cos}
+ \psplot[plotstyle=dots,plotpoints=10]%
+ {0}{1.570796327}{x rad cos}
+\end{pspicture}
+\end{document}