| D01ZKF | Option setting routine |
| E02ZKF | Option setting routine |
| E05JCF | Supply optional parameter values for E05JBF from external file |
| E05JDF | Set a single optional parameter for E05JBF from a character string |
| E05JEF | Set a single optional parameter for E05JBF from an ‘ON’/‘OFF’-valued character argument |
| E05JFF | Set a single optional parameter for E05JBF from an integer argument |
| E05JGF | Set a single optional parameter for E05JBF from a real argument |
| E05ZKF | Option setting routine for E05SAF, E05SBF, E05UCF and E05USF |
| G02ZKF | Option setting routine for G02QGF |
| H02CCF | Read optional parameter values for H02CBF from external file |
| H02CFF | Read optional parameter values for H02CEF from external file |
| H02CGF | Supply optional parameter values to H02CEF |