nag_specfun_kelvin_ker_vector (s19aqc) Example Program Results x f ivalid 1.000e-01 2.420e+00 0 1.000e+00 2.867e-01 0 2.500e+00 -6.969e-02 0 5.000e+00 -1.151e-02 0 1.000e+01 1.295e-04 0 1.500e+01 -1.514e-08 0