[pstricks] computed coordinates

[Herbert Voss]

Am 28.03.2010 15:30, schrieb Zbigniew Nitecki:
> I want to draw a series of concentric ellipses with successively larger axes.  The following
> 
> 			\begin{pspicture}(-3,-2.5)(3,3)
> 				\multido{\rc=0+0.5}{9}{\psellipse[linecolor=green](\rc,\rc\space 2 div)}
> 			\end{pspicture}

for PostScript notation:

\multido{\rc=0+0.5}{9}{\psellipse[linecolor=green](! \rc\space dup 2 div)}

without a comma and an enanbled \SpecialCoor

Herbert