nag_struve_l1 (s18gbc) Example Program Results
     x        Struve L1(x)
   5.000e-01   5.394e-02
  -1.000e+00   2.268e-01
   3.000e+00   3.397e+00
  -6.000e+00   6.073e+01
   8.000e+00   3.992e+02
  -1.000e+01   2.670e+03