NAG Library Manual, Mark 30.3
Interfaces:  FL   CL   CPP   AD 

NAG FL Interface Introduction
Example description

 S21BBF Example Program Results

     X      Y      Z        S21BBF

    0.50   1.00   1.50      1.0281
    1.00   1.50   2.00      0.8260
    1.50   2.00   2.50      0.7116