[pstricks] plotting in polar coordinates

Etienne Marache e.marache at wanadoo.fr
Sat Jun 18 17:46:05 CEST 2005


\documentclass{article}
\usepackage{pst-plot}

\begin{document}
\newcommand{\rau}{2 t mul cos 3 mul sqrt}
\psset{unit=2cm}
\begin{pspicture}(-3,-3)(3,3)
 \parametricplot{-45}{45}{\rau\space dup t
      cos mul exch 
      t sin mul} 
\parametricplot{-45}{45}{\rau\space neg dup t
      cos mul exch 
      t sin mul} 
\end{pspicture}
\end{document}




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