NAG Library Manual, Mark 29.3
Interfaces:  FL   CL   CPP   AD 

NAG FL Interface Introduction
Example description

 S21BDF Example Program Results

     X      Y      Z      R        S21BDF

    0.50   0.50   0.50   2.00      1.1184
    0.50   0.50   1.00   2.00      0.9221
    0.50   0.50   1.50   2.00      0.8115
    0.50   1.00   1.00   2.00      0.7671
    0.50   1.00   1.50   2.00      0.6784
    0.50   1.50   1.50   2.00      0.6017
    1.00   1.00   1.00   2.00      0.6438
    1.00   1.00   1.50   2.00      0.5722
    1.00   1.50   1.50   2.00      0.5101
    1.50   1.50   1.50   2.00      0.4561