| $-method | Class "CallbackFunction" acting as an event handler or callback function. |
| CallbackFunction-class | Class "CallbackFunction" acting as an event handler or callback function. |
| CombinationGeneratorCallback-class | A callback type for processing combinations |
| combinations | Combinations of r items from n |
| names-method | Class "CallbackFunction" acting as an event handler or callback function. |
| permutations | Enumerate all possible permutations of n items |