I have a nice 3-D n-th order surface polynomial fitter in BASIC.
Please, oh please, does anyone have surface-fitting software in C or
C++.  Translations from the Stone Age are not my strong suit, and I would
like to directly incorporate the algorithm into my C/C++ software.

 If you are interested in data modeling, give me a ring.

     Randy Phillips (phillij@iia.org)
     Research and Development
     Data Measurement Corporation