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

• Count from 0 to N^M in base N.

  240 Solvers

• Convert Hard Drive marketing sizes to actual data sizes

  69 Solvers

• Back to basics 22 - Rotate a matrix

  937 Solvers

• Is the Point in a Triangle?

  1716 Solvers

• Generate a string like abbcccddddeeeee

  275 Solvers

More from this Author99

• Person of interest?

  73 Solvers

• convert?

  43 Solvers

• Check if sorted

  4494 Solvers

• Have you seen any Spindromes recently?

  19 Solvers

• drowsy?

  51 Solvers