nag_cumul_normal (s15abc) Example Program Results x y -2.000e+01 2.754e-89 -1.000e+00 1.587e-01 0.000e+00 5.000e-01 1.000e+00 8.413e-01 2.000e+00 9.772e-01 2.000e+01 1.000e+00