[pstricks] Arithmetic overflow in pstricks-add

[Herbert Voss]

Christoph Bersch wrote:

> when compiling the following document, I get the error
> 
> ! Arithmetic overflow.
> <recently read> \pst at cntg

As mentioned in the documentation (!) it is sometimes
difficult to handle the values, because TeX has no
floating point values:

\documentclass{article}
\usepackage{filecontents}
\usepackage{pstricks-add}

\begin{document}
\begin{filecontents}{fft.dat}
0.000000 27161.972486
0.049991 0.000696
\end{filecontents}
\readdata{\data}{fft.dat}
\pstScalePoints(100,1){}{log}
\begin{psgraph}[arrows=->,Dx=0.01,dx=\psxunit,ylogBase=10,Oy=-5](0,-5.0)(0,-5.0)(5,4.5){12cm}{6cm}
   \listplot[linecolor=red]{\data}
\end{psgraph}
\end{document}


Herbert