nag_kelvin_bei (s19abc) Example Program Results
     x           y
   1.000e-01   2.500e-03
   1.000e+00   2.496e-01
   2.500e+00   1.457e+00
   5.000e+00   1.160e-01
   1.000e+01   5.637e+01
   1.500e+01  -2.953e+03
  -1.000e+00   2.496e-01