Fw: 2-D Chebyshev Polynomial Regression

["Vadim Zelenkov" <zelenkov@isir.minsk.by>]

I forward the message below from comp.soft-sys.math.mathematica which
could be interesting for OP-SF Community.

Vadim Zelenkov

-----Original Message-----
From: Chris Farr <farr@brown.edu>
Newsgroups:
Date: Tuesday, July 07, 1998 10:57 AM
Subject: 2-D Chebyshev Polynomial Regression


>Math Group,
>
>Has anyone created a function in Mathematica to approximate a
function
>of two variables using 2-D Chebyshev Polynomial Regression?
>
>That is, has someone created a Mathematica algorithm which takes as
its
>input a real valued function f(x,y) defined on [a,b] X [c,d] and
>returns a Chebyshev polynomial approximation p(x,y)?
>
>If so, I would be interested in obtaining it.
>
>Thanks,
>
>Chris Farr
>
>
>
>