[OS X TeX] TKZplot2d for tikz/pgf problem.

Alain Matthes alain.matthes at mac.com
Mon May 14 07:36:34 EDT 2007

Le 14 mai 07 à 09:32, Frank STENGEL a écrit :

>> This compiles fine as shown but doesn't work when the commented  
>> lines are uncommented (as they are in the original example in the  
>> documentation). When these lines are uncommented, I get the errors  
>> below. I suspect the problem is with the "exp(1)" expression but  
>> don't understand why this evidently worked as documented but  
>> doesn't work for me.
> I looked at tkz-plot2d.sty and found your problem stems from the  
> fact that the 1/exp(1) is not evaluated, but used as if it were a  
> floating point number. If I replace line 162 of tkz-plot2d.sty  
> (inside \tkz at fctpt's definition) by
> \FPeval\x{#2}%
> then everything works fine. One should look if some of the other  
> \FPset shouldn't be changed to \FPeval
> -- 

Sorry but this morning in Paris it was early and I was not well awaked

I have a problem with this macro ;  in a previous version it was
FPeval\x{#2} but i found some examples
  with a problem if i use FPeval\x{#2} ....

  and I make a change \FPset\x{#2} for FPeval\x{#2}

  if you keep \FPset\x{#2} it's impossible
  to use tkzfctpt[type=$\bullet$](1/(exp(1)),\tkzfcta){A}

so you  need to write



With 1/exp(1) an evaluation is necessary so if you want
to make evaluation, you can used  Peval\x{#2} like this :

%<–––––––––––––––––––––––––– point d'une courbe  
\newcommand*{\tkzfctpt}[1][]{\tkz at fctpt[#1]}%

\def\tkz at fctpt[#1](#2,#3)#4{
\tkz at pt[#1](\x,\y){#4}
If you have some problem with other examples, tell me...

I need to see all the examples  ... to decide what I make...
It's fine to keep the possibilty of the evaluation but only if
  if find a solution for all the examples.

And I need to make an other documentation...

Greetings Alain Matthes
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