nag_log_gamma (s14abc) Example Program Results
     x           y
   1.000e+00   0.000e+00
   1.250e+00  -9.827e-02
   1.500e+00  -1.208e-01
   1.750e+00  -8.440e-02
   2.000e+00   0.000e+00
   5.000e+00   3.178e+00
   1.000e+01   1.280e+01
   2.000e+01   3.934e+01
   1.000e+03   5.905e+03