MATLAB Curve Fitting

I have a file that contains a matrix with 3 rows and a large number of colums called "Data02.mat". The third row is the dependent variable and the first two rows are independent.

This needs to extend the matching to include the independent variables and all their products. An analysis needs to compute the parameters for the equation below and compute the CD for its fit.

Form of A matrix:

x1	x1*x1	x1*y1	y1	y1*y1	1
x2	x2*x2	x2*y2	y2	y2*y2	1
...	...	...	...	...	...
xn	xn*xn	xn*yn	yn	yn*yn	1

zi = a * xi + b * x + c * xi * yi + d * yi + e * y + g