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twodimensional second order polynomial parameter estimation http://forum.alglib.net/viewtopic.php?f=2&t=2227 
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Author:  fdesmedt [ Thu Jan 22, 2015 9:50 am ] 
Post subject:  twodimensional second order polynomial parameter estimation 
Hi, I'm just beginning to work with ALGLIB and have some difficulties to implement a curvefitting solution. I have a set of 3D point (X,Y,H), where X and Y are pixel coordinates and H is a value, and I want to fit a curve/plane so I can determine for each (X,Y) pair the Hvalue. Experiencebased I know the function to describe this relation is f(x,y) = A + Bx + C y + D x^2 + Exy + F y^2. What I want to receive is the values of A,B,C,D,E and F (all constants). Can anybody help to setup the code to perform such a task (if possible) with ALGLIB. I have looked into many examples and comments, but seem not capable of finding how to perform this. Thanks in advance. 
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