nag_prob_f_vector (g01sdc) Example Program Data 1 :: ltail Nag_LowerTail :: tail 3 :: lf1 5.5 39.9 2.5 :: f 3 :: ldf1 1.5 1.0 20.25 :: df1 3 :: ldf2 25.5 1.0 1.0 :: df2