Element-wise multiplication and division: .*, ./

If A and B are two matrices of the same size, then A .* B and A ./ B are the matrices of the same size, whose entries are the products/quotients of the corresponding entries of A and B. For example
   A = [1, 2, 3, 4, 5];
   A .* A
       1   4   9  16  25
   A = [1, 2; 3, 4];
   B = [1, 1; 2, 2];
   A .* B
       1     2
       6     8
   A ./ B
             2
      1.5    2



oz 2009-12-22