nag_lapacklin_zptsv (f07jnc) Example Program Data
    4             1                                      : n, nrhs
   16.0          41.0          46.0          21.0        : diagonal d
 ( 16.0, 16.0) ( 18.0, -9.0) (  1.0, -4.0)               : sub-diagonal e
 ( 64.0, 16.0) ( 93.0, 62.0) ( 78.0,-80.0) ( 14.0,-27.0) : vector b