nag_bessel_i_nu (s18eec) Example Program Results
  x      nu        y
 3.9     -3    9.5207e+00
 1.4     -2    1.4504e+00
 8.2     -1    5.1349e+02
 6.7      1    1.2714e+02
 0.5      2    5.8799e-01
 2.3      3    2.3687e+00