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%%
%% The LaTeX Graphics Companion, 2ed (first printing May 2007)
%%
%% Example 5-12-16 on page 276.
%%
%% 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{183.83385pt}
\AtBeginDocument{%
\renewcommand*\pshlabel[1]{\small#1}
\renewcommand*\psvlabel[1]{\small#1}}
\StartShownPreambleCommands
\usepackage{pstricks}
\usepackage{pst-plot}
\StopShownPreambleCommands
\begin{document}
\begin{pspicture}(-2,-0.5)(2,5.5)
\begin{psclip}{%
\pscustom[linestyle=none]{%
\psplot{-2}{2}{x dup mul 1 add}}
\pscustom[linestyle=none]{%
\psplot{2}{-2}{x dup mul neg 5 add}}}
\psframe*[linecolor=lightgray](-2,0)(2,5)
\end{psclip}% <- % is important here
\psaxes{->}(0,0)(-2,-0.5)(2,5.5)
\psplot{-2}{2}{x dup mul 1 add}
\psplot{2}{-2}{x dup mul neg 5 add}
\uput[-90](2,0){x} \uput[0](0,5.5){y}
\end{pspicture}
\end{document}
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