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+%%
+%% A DANTE-Edition example
+%%
+%% Example 23-05-17 on page 367.
+%%
+%% 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{201.70511pt}
+\setlength\parindent{0pt}
+\def\func{ x 3 exp x y 4 exp mul add x 5 div sub 10 mul
+ 2.729 x dup mul y dup mul add neg exp mul
+ 2.729 x 1.225 sub dup mul y dup mul add neg exp add }
+
+\usepackage{pstricks,pst-3dplot}
+
+\begin{document}
+\begin{pspicture}(-6,-3)(6,4) \psset{Beta=15}
+ \psplotThreeD[plotstyle=line,drawStyle=xLines,yPlotpoints=50,xPlotpoints=50,
+ linewidth=0.2pt](-4,4)(-4,4){\func}
+ \pstThreeDCoor[xMax=5,yMax=5,zMax=3.5]
+\end{pspicture}
+\end{document}