nag_complex_airy_ai (s17dgc) Example Program Data
 Nag_Function   ( 0.3,  0.4)    Nag_UnscaleRes
 Nag_Function   ( 0.2,  0.0)    Nag_UnscaleRes
 Nag_Function   ( 1.1, -6.6)    Nag_UnscaleRes
 Nag_Function   ( 1.1, -6.6)    Nag_ScaleRes
 Nag_Deriv      (-1.0,  0.0)    Nag_UnscaleRes   - Values of deriv, z and scal