nag_specfun_jacellip_complex (s21cbc) Example Program Results
          z                    ak2
 ( -2.0000,  3.0000)           0.25

         sn                     cn                     dn
 ( -1.5865,  0.2456)    (  0.3125,  1.2468)    ( -0.6395, -0.1523)