| g05ccc | Initialise random number generating [<rout>][</rout>]s to give non-repeatable sequence |
| g05kbc | Initialise seeds of a given generator for random number generating [<rout>][</rout>]s (that pass seeds explicitly) to give a repeatable sequence |
| g05kcc | Initialise seeds of a given generator for random number generating [<rout>][</rout>]s (that pass seeds expicitly) to give non-repeatable sequence |
| h02xxc | Initialise option structure to null values |