nag_complex_airy_bi (s17dhc) Example Program Data
 'f'   ( 0.3,  0.4)    'u'
 'f'   ( 0.2,  0.0)    'u'
 'f'   ( 1.1, -6.6)    'u'
 'f'   ( 1.1, -6.6)    's'
 'd'   (-1.0,  0.0)    'u'   - Values of deriv, z and scal