nag_dgb_norm (f16rbc) Example Program Data
  6 4 2 1             :Values of m, n, kl, ku
   1.0  1.0
   2.0  2.0  2.0
   3.0  3.0  3.0  3.0
        4.0  4.0  4.0
             5.0  5.0
                  6.0 : the end of matrix A