| E04HCF | Check user's for calculating first derivatives of function |
| E04HDF | Check user's for calculating second derivatives of function |
| E04YAF | Check user's for calculating Jacobian of first derivatives |
| E04YBF | Check user's for calculating Hessian of a sum of squares |
| E04ZCF/E04ZCA | Check user's s for calculating first derivatives of function and constraints |