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%%
%% A DANTE-Edition example
%%
%% Example 10-04-3 on page 116.
%%
%% 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{177.70511pt}
\setlength\parindent{0pt}
\usepackage{pstricks,pst-plot}
\begin{document}
\begin{pspicture}(-2,-0.5)(2,5.5)
\psclip{%
\pscustom[linestyle=none]{%
\psplot{-2}{2}{x dup mul 1 add}}
\pscustom[linestyle=none]{%
\psplot{2}{-2}{x dup mul neg 5 add}}%
}% end of \psclip
\psframe*[linecolor=lightgray](-2,0)(2,5)
\endpsclip
\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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