NAG Library Manual, Mark 28.7
Interfaces:  FL   CL   CPP   AD 

NAG FL Interface Introduction
Example description

 S21BGF Example Program Results

     DN     PHI    DM      S21BGF

    0.10   0.52   0.25      0.5341
   -0.20   1.05   0.50      1.0778
    0.30   1.57   0.75      2.6568