Lost : Plot_Demo

[Cousin Stanley]

Several months ago someone here mentioned 
a small and simple plot demo .... 

I think it was around the Oct./Nov. 2003 time-frame,
but I'm not sure about that .... 

And, I think the demo was in one of standard Python directories,
maybe .... 

    /Scripts
    /Tools/Scripts

The demo put up a small window 
that provided a text entry field
at the bottom where the user 
could enter an expression that would
be eval__uated, scaled, and plotted .... 

The initial expression that was evaluated
when the demo was first loaded was something
like .... 

  y = sin( 3*x ) + cos( 2*x )

I don't remember if the original query
was someone looking for a plot solution,
or in the context of the __evils__ of eval ....

I've Googled this NewsGroup and almost worn out
the  FIND  button in Windows trying to find it again ....

I have several plot package options available,
but would like to find  __that__  particular demo again ....

Any clues ????

-- 
Cousin Stanley
Human Being
Phoenix, Arizona