nag_polygamma_deriv (s14adc) Example Program Results
        x        w(0,x)        w(1,x)        w(2,x)        w(3,x)
   1.0000e-01    1.0424e+01    1.0143e+02    1.0009e+03    1.0001e+04
   5.0000e-01    1.9635e+00    4.9348e+00    8.4144e+00    1.6235e+01
   3.6000e+00   -1.1357e+00    3.1988e-01    5.0750e-02    1.0653e-02
   8.0000e+00   -2.0156e+00    1.3314e-01    8.8498e-03    7.8321e-04