[pstricks] PSTricks symbolic or numeric?

[John Frampton]

> 
> In my research group, our physicist uses Mathematica and
> describes it as symbolic math.  Our engineer uses Matlab
> and describes it as numeric.  Does PSTricks fall toward
> either of these category descriptions?

Neither.  Mathematica and Matlab are built to do mathematical 
computations.  PSTricks is built to create and display graphical
representions, not to do the computations that produce them.