nag_complex_bessel_k (s18dcc) Example Program Data
 0.00    ( 0.3,  0.4)    'u'
 2.30    ( 2.0,  0.0)    'u'
 2.12    (-1.0,  0.0)    'u'
 5.10    ( 3.0,  2.0)    'u'
 5.10    ( 3.0,  2.0)    's'  - Values of fnu, z and scal