[pstricks] Graphing function containing a parameter

[Herbert Voss]

Herbert Voss wrote:
> Jean-Claude Dehaes wrote:
> 
>> I tried the code and it works except if I use the latest version of 
>> pstricks-add. Then I get the message
>>
>>  
>>  Package xkeyval Error: `hatchwidthinc' undefined in families 
>> `,pstricks-add'
> 
> 
> you need the pstricks.tex _and_ pstricks.pro from
> http://perce.de/LateX/pstricks/
> 
> then it should work, hopefully ...

hopefully not ... :-( I forgot to change some option names in
the latest pstricks-add.tex
Take the one (v2.63) from http://perce.de/LaTeX/pstricks-add

Herbert