Problem 486. Surface Fit z(x,y)

 x = [ 0  0  1  1  2  2  3  3]
 y = [ 0  1  0  1  0  1  0  1]
 z = [-4 -1 -3 -2  0 -1  5  2]

 z = x.^2-2*x.*y+3*y.^2-4 

 c = [cxx cxy cyy c00] = [1 -2 3 -4]

Solution Comments

Problem Recent Solvers46

Suggested Problems

• Distance walked 3D

  288 Solvers

• Fizz Buzz

  112 Solvers

• Project Euler: Problem 2, Sum of even Fibonacci

  2836 Solvers

• Return elements unique to either input

  808 Solvers

• Given a matrix, swap the 2nd & 3rd columns

  1264 Solvers

More from this Author99

• Multiply to the limit?

  40 Solvers

• Create One Large Eye of size N x N Quickly?

  95 Solvers

• Simple spirometer - find your lung capacity from the number and size of soap bubbles in one breath

  43 Solvers

• How to add?

  156 Solvers

• Multiply a column by a row

  824 Solvers