nag_lapacklin_dgbequ (f07bfc) Example Program Data
  4          1          2                     : n, kl and ku
 -2.30e-01   2.54e+00  -3.66e-10
 -6.98e+10   2.46e+10  -2.73e+00  -2.13e+10
             2.56e+00   2.46e-10   4.07e+00
                       -4.78e-10  -3.82e+00   : matrix A