[pstricks] Arrow in the middle of a Bezier curve

[mathias legrand]

>    Hi
>
> I need to put an arrow in the meddle of a Bezier curve. Is there an easy
> way to do it?


sure, page 92 of the pstricks-add user guide:

\begin{pspicture}(4,3)
\psset{arrowscale=2}
\psbezier[ArrowInside=->](0,0)(2,3)(3,0)(4,2)
\end{pspicture}