D04BAF Example Program Results
Find the derivatives of the polygamma (psi) function
using function values generated by S14AEF.
Demonstrate the effect of successively reducing HBASE.
Derivative (1) calculated using S14AEF : 4.0153E+02
Derivative and error estimates for derivative (1)
hbase DER(1) EREST(1)
2.5000E-03 4.0204E+02 1.4E+02
2.5000E-04 4.0153E+02 5.0E-11
2.5000E-05 4.0153E+02 2.2E-10
2.5000E-06 4.0153E+02 1.2E-09
Derivative (2) calculated using S14AEF : -1.6002E+04
Derivative and error estimates for derivative (2)
hbase DER(2) EREST(2)
2.5000E-03 -1.6022E+04 5.6E+03
2.5000E-04 -1.6002E+04 1.3E-07
2.5000E-05 -1.6002E+04 6.1E-06
2.5000E-06 -1.6002E+04 9.6E-04
Derivative (3) calculated using S14AEF : 9.6001E+05
Derivative and error estimates for derivative (3)
hbase DER(3) EREST(3)
2.5000E-03 9.1465E+05 -7.4E+06
2.5000E-04 9.6001E+05 2.4E-04
2.5000E-05 9.6001E+05 4.2E-02
2.5000E-06 9.6001E+05 6.0E+01