nag_dgemm (f16yac) Example Program Data
  3 2 3                :Values of m, n, k
  Nag_NoTrans          : transa
  Nag_NoTrans          : transb
  1.5  1.0             : alpha, beta
  1.0  2.0  3.0
  3.0  4.0  5.0
  5.0  6.0 -1.0        :End of matrix A
  1.0  2.0
 -2.0  1.0
  3.0 -1.0             :End of matrix B
 -2.0  1.0
  1.0  3.0
  2.0 -1.0             :End of matrix C