4
I have a problem with this file tex:
\begin{document}
\begin{figure}
\begin{center}
\begin{pspicture}(0,0)(1,3.8)
\psline{-<}(0,0)(0,.2)
\psline{-}(0,.2)(0,.4)
\psline{*->}(0,.4)(0,.9)
\psline{-*}(0,.9)(0,1.4)
\psline{-<}(0,1.4)(0,2.4)
\psline{-}(0,2.4)(0,3.4)
\psline{*-}(0,3.4)(0,3.6)
\psline{>...