| e04hcc | nag_opt_check_deriv Derivative checker for use with e04kbc |
| e04hdc | nag_opt_check_2nd_deriv Checks second derivatives of a user-defined function |
| e04kbc | nag_opt_bounds_deriv Bound constrained nonlinear minimization (first derivatives required) |
| e04yac | nag_opt_lsq_check_deriv Least-squares derivative checker for use with e04gbc |