nag_lapacklin_dptrfs (f07jhc) Example Program Data
  5     2                     : n and nrhs
  4.0  10.0  29.0  25.0   5.0 : diagonal d
 -2.0  -6.0  15.0   8.0       : super-diagonal e
  6.0  10.0
  9.0   4.0
  2.0   9.0
 14.0  65.0
  7.0  23.0                   : matrix b