NAG Library Manual, Mark 27.2
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