🚀 go-pugleaf

I'm looking for software for a researcher here that will do 3-dimensional curve
(surface) fitting on grids of data where z = f(x,y).  At the very least it 
should do linear, log, exp, and polynomial fits.  Basically we need to give
it a grid of data and get a z = f(x,y) function that reasonably describes
the surface.

Fitting user defined functions like KaleidaGraph does for 2 dimensions would 
be a major plus.  Handling 4 or 5 dimensions would be even nicer but not as 
necessary.

I have experiemented with using KaleidaGraph to fit slices of z vs. x,
holding y constant, to get sets of coefficients and then fitting to y vs.
each set of coefficients.  This gives a final equation after massive
substitution.  The results form that are reasonable but it is a tedious process
even for a few slices with just a couple coefficients.

Does Mathematica even do this?

Please e-mail and I'll summarize to the net.

Thanks and Happy New Year!
	Mark Milbourne
	
	Reply to address in header above or to milbouma%esvax@dupont.com.

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