MATLAB: How do you create a matrix Aij where each value is determined by a formula

Question

Eg: Aij = (-1)^i+j

Where i and j are the row and column indexes respectively.

So a 2 dimensional matrix, A, would be:

A = 
   1  -1
  -1   1

Answer 1

[I,J] = ndgrid(1:2,1:2);
(-1).^(I+J)