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<font face="Myriad Pro">Dear Carsten,<br>
</font><br>
<blockquote cite="mid:4BF8DBE0.5040600@wh10.tu-dresden.de" type="cite">$f(x)=-\frac{\ln(x)\times360}{\ln(10)}$
$D_f=[0..10]\subset\mathbf{N}$
<br>
<br>
<br>
%% /lograd \i\space ln -360 mul 10 ln div def
<br>
</blockquote>
\pstVerb{%<br>
/lograd \i\space ln 360 mul 10 ln div neg def<br>
}<br>
<br>
for your function.<br>
<br>
Note: A logarithmic function is not defined for \i=0 -- however you
start with \i=0...<br>
<blockquote cite="mid:4BF8DBE0.5040600@wh10.tu-dresden.de" type="cite"><br>
Even a "simple number" isnt doing it and throwing "! Bad number:
`logradÂŽ."
<br>
</blockquote>
Try out the following:<br>
<br>
%%%%%%%%<br>
\documentclass{article}<br>
\usepackage{pstricks,multido}<br>
\SpecialCoor<br>
\begin{document}<br>
\multido{\i=1+1}{10}{%<br>
\pstVerb{%<br>
/lograd \i\space ln 360 mul 10 ln div neg def<br>
}<br>
\psline(!4.9 lograd sin mul 4.9 lograd cos mul)(!5.2 lograd sin mul 5.2
lograd cos mul)<br>
}<br>
\end{document} <br>
%%%%%%%%<br>
<br>
Hope this helps.<br>
<br>
Regards, <br>
Juergen<br>
<pre class="moz-signature" cols="65">--
Jürgen Gilg
Austr. 59
70376 Stuttgart
-------------------------------------
Tel 0711.59 27 88
e-Mail <a class="moz-txt-link-abbreviated" href="mailto:gilg@acrotex.net">gilg@acrotex.net</a>
</pre>
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