nag_blast_dgbmv (f16pbc) Example Program Data
  6 4 2 1          :Values of m, n, kl, ku
  Nag_NoTrans      : trans
  1.0  2.0         : alpha, beta
  1 1              : incx, incy
  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
  1.0
  2.0
  3.0
  4.0              : the end of vector x
  -0.5
  -4.5
  -13.0
  -15.5
  -14.5
  -8.5            : the end of vector y