nag_struve_i0ml0 (s18gcc) Example Program Results
     x        I0(x)-L0(x)
   5.000e-01   7.362e-01
   1.000e+00   5.558e-01
   3.000e+00   2.321e-01
   6.000e+00   1.100e-01
   8.000e+00   8.108e-02
   1.000e+01   6.438e-02
   1.000e+02   6.367e-03