matrixProduct(A,B):
|  Input  n×n matrices A, B
|  Output n×n matrix A·B
|
|  for all i=1..n do                     2n+1
|  |  for all j=1..n do                  n(2n+1)
|  |  |  C[i,j]=0                        n2
|  |  |  for all k=1..n do               n2(2n+1)
|  |  |     C[i,j]=C[i,j]+A[i,k]·B[k,j]  n3·4
|  |  |  end for
|  |  end for
|  end for
|  return C                              1
                                         ------------
                                 Total   6n3+4n2+3n+2