# Function setDistinct Collect the distinct elements of a multiset. A multi-dimension array will be converted to a single-dimension array before the operation. ## Syntax ```js math.setDistinct(set) ``` ### Parameters Parameter | Type | Description --------- | ---- | ----------- `a` | Array | Matrix | A multiset ### Returns Type | Description ---- | ----------- Array | Matrix | A set containing the distinc elements of the multiset ### Throws Type | Description ---- | ----------- ## Examples ```js math.setDistinct([1, 1, 1, 2, 2, 3]) // returns [1, 2, 3] ``` ## See also [setMultiplicity](setMultiplicity.md)