[pstricks] using postscript calc for length but not angle

[Herbert Voss]

Am 17.04.2011 19:54, schrieb Jon Joseph:
> All:  I would like to set a pnode at \sqrt{3} and 30 degrees and let postscript make the square root calculation for me.  I'm looking for
> \pnode(1.732;30) but replace 1.732 with !3 sqrt.  How do I do this without pnode thinking I want the cartesian point \pnode(1.732, 30)?  Thanks, Jon.

\documentclass{minimal}
\usepackage{pst-node} \SpecialCoor
\begin{document}

\psset{unit=2}
\begin{pspicture}(2,2)\psgrid
\end{pspicture}

\pnode(! 3 sqrt 30 PtoC){A}\psdot(A)

\end{document}

Herbert