NAG Library Manual, Mark 29
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