%% 
%%  Ein Beispiel der DANTE-Edition
%% 
%% 
%%  Copyright (C) 2010 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[]{exaarticle}
\pagestyle{empty}
\setlength\textwidth{352.81416pt}
\setlength\parindent{0pt}
\StartShownPreambleCommands
\usepackage{pstricks,pst-solides3d}
\StopShownPreambleCommands
\begin{document}
\begin{pspicture}(-2,-3)(3,3)
\psset{unit=0.4}
\psset{lightsrc=30 30 25}
\psset{viewpoint=50 40 30 rtp2xyz,Decran=50}
\psSurface[ngrid=.25 .25,incolor=white,axesboxed,inouthue=0 1](-4,-4)(4,4){%
   x dup mul y dup mul 3 mul sub x mul 32 div}
\end{pspicture}
\end{document}