nag_prob_gamma_vector (g01sfc) Example Program Data 1 :: ltail Nag_LowerTail :: tail 4 :: lg 15.5 0.5 10.0 5.0 :: g 4 :: la 4.0 4.0 1.0 2.0 :: a 4 :: lb 2.0 1.0 2.0 2.0 :: b