| C05ZDF | Check user's routine for calculating first derivatives of a set of nonlinear functions of several variables |
| D03RYF | Check initial grid data in D03RBF |
| E04HCF | Check user's routine for calculating first derivatives of function |
| E04HDF | Check user's routine for calculating second derivatives of function |
| E04YAF | Check user's routine for calculating Jacobian of first derivatives |
| E04YBF | Check user's routine for calculating Hessian of a sum of squares |
| E05JHF | Determine whether an optional parameter for E05JBF has been set by you or not |
| M01ZBF | Check validity of a permutation |