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%%
%% A DANTE-Edition example
%%
%% Example 36-00-5 on page 770.
%%
%% 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{375.57637pt}
\setlength\parindent{0pt}
\usepackage{pst-math,pstricks-add}
\makeatletter
\def\psGaussFill{\pst@object{psGaussFill}}
\def\psGaussFill@i(#1,#2)(#3,#4)#5#6{{%
\pst@killglue
\use@par
\pscustom[linestyle=none,opacity=0.5,strokeopacity=0.5]{%
\psline(#4,0)(#3,0)
\psplot[liftpen=1]{#3}{#4}{x #5 #6 GAUSS}%
}%
\psplot[fillstyle=none]{#1}{#2}{x #5 #6 GAUSS}%
}\ignorespaces}
\makeatother
\begin{document}
\psset{yunit=7.5cm, xunit=2cm}
\begin{pspicture}(-4,-0.06)(4,0.6)
\psaxes[dy=0.2,Dy=0.2,linewidth=0.5pt]{->}(0,0)(-3.5,-0.1)(3.5,0.5)
\psset{fillstyle=solid,plotpoints=100,linewidth=1pt}
\psGaussFill[fillcolor=red](-3,3)(-2,-1.25){0}{0.9}
\psGaussFill[fillcolor=blue](-3,3)(.5,1.5){0.5}{0.9}
\psGaussFill[fillcolor=red,linestyle=none](-3,-1)(-2,-1.25){0}{0.9}
\end{pspicture}
\end{document}
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