[pstricks] \psxTick error

[hh]

Just to mention: pst-add has no final status. What worked once, does not 
always work again - so do not update (which you might have done).

I could not find the command psxTick in the book of Herbert Voss (5th 
edition).
hh


Date sent:	Wed, 12 Aug 2009 20:20:34 +0200
From:	Johan Ekh <ekh.johan at gmail.com>
To:	Graphics with PSTricks <pstricks at tug.org>
Subject:	[pstricks] \psxTick error
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> Hi all,
> I'm trying to use \psxTick but I get "Undefined control sequence" when I run
> LaTeX.
> Can anyone tell me what I am doing wrong?
> 
> I've included the following packages:
> 
> \usepackage{pstricks,pstricks-add,pst-math,pst-plot,pst-3dplot}
> 
> 
> This is my code:
> 
> \begin{figure}[hbt]
>   \begin{center}
>     \psset{xAxisLabel=,yAxisLabel=}
>     \begin{psgraph}[ticks=none,Dx=2,Dy=2](0,0)(-5,-5)(5,5){0.5\textwidth}{!}
>       \psxTick(1.5){$a^2$}
>       \psplot[linewidth=1.25pt,algebraic]{-4.0}{4.0}{ 3*sin(3.141592*x/8.0)
> }
>     \end{psgraph}
>   \end{center}
> \end{figure
> 
> 
> //Johan
>