| E05JEF | Set a single optional parameter for E05JBF from an ‘ON’/‘OFF’-valued character argument |
| E05JJF | Get the setting of an ‘ON’/‘OFF’-valued character optional parameter of E05JBF |
| M01CCF | Sort a vector, character data |
| M01DCF | Rank a vector, character data |
| M01ECF | Rearrange a vector according to given ranks, character data |
| X05ABF | Convert array of integers representing date and time to character string |
| X05ACF | Compare two character strings representing date and time |