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+%%
+%% Ein Beispiel der DANTE-Edition
+%%
+%% 7. Auflage
+%%
+%% Beispiel 35-00-42 auf Seite 836.
+%%
+%% Copyright (C) 2016 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{pst-3dplot}
+\def\drawCircles{%
+ \parametricplotThreeD[xPlotpoints=100](80,360)(0,360){%
+ /k 2 def /k2 4 def
+ t cos k mul 3 u sin k mul add mul
+ t sin k mul 3 u sin k mul add mul
+ u cos k2 mul
+ }
+ \parametricplotThreeD[yPlotpoints=75](0,360)(80,360){%
+ /k 2 def /k2 4 def
+ u cos k mul 3 t sin k mul add mul
+ u sin k mul 3 t sin k mul add mul
+ t cos k2 mul
+ }
+ \parametricplotThreeD[yPlotpoints=2,linecolor=red,linewidth=2pt](0,360)(80,360){%
+ /k 2 def /k2 4 def
+ u cos k mul 3 t sin k mul add mul
+ u sin k mul 3 t sin k mul add mul
+ t cos k2 mul
+ }}
+
+%StopShownPreambleCommands
+\begin{document}
+\psset{unit=0.6}
+\begin{pspicture}(-5,-5.5)(5,6)
+ \psset{Beta=20,Alpha=50,linewidth=0.1pt,linecolor=cyan}
+ \drawCircles
+\end{pspicture}
+\end{document}