[pstricks] a problem with \psplotDiffEqn

Herbert Voss LaTeX at zedat.fu-berlin.de
Thu Mar 15 06:58:19 CET 2007


Andrzej J. Maciejewski schrieb:
> in your example arrows=-> makes arrows, i.e.,
> \psplotDiffEqn[ArrowInside=->]{0}{8}{4}{\Func}
> does not give any arrows (at least in on my computer)
> I generate many points  solving given equation. Having a curve along
> them I
> like to put few arrows on it. In a meantime I have checked that
> ArrowInside
> works for psline but \pscurve[ArrowInside=->](0,0)(4,2)(3,1) does not
> give
> arrows on curve.  Does it mean that
> ArrowInside shoud be used only with \psline?

Andrzej,
attached the png, what I get with this example:

\documentclass{article}
\usepackage{pstricks-add}
\begin{document}
%
\def\Func{ neg }
%
\psset{method=rk4,plotpoints=10,linecolor=blue,linewidth=0.5pt}
\begin{pspicture}[showgrid=true](0,-0.5)(8,4)
\psplotDiffEqn[arrows=->,ArrowInside=->,arrowscale=2]{0}{8}{4}{\Func}
\end{pspicture}

\end{document}


Herbert
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