mirror of
https://github.com/josdejong/mathjs.git
synced 2025-12-08 19:46:04 +00:00
42 lines
868 B
Markdown
42 lines
868 B
Markdown
<!-- Note: This file is automatically generated from source code comments. Changes made in this file will be overridden. -->
|
|
|
|
# Function setSize
|
|
|
|
Count the number of elements of a (multi)set. When a second parameter is 'true', count only the unique values.
|
|
A multi-dimension array will be converted to a single-dimension array before the operation.
|
|
|
|
|
|
## Syntax
|
|
|
|
```js
|
|
math.setSize(set)
|
|
math.setSize(set, unique)
|
|
```
|
|
|
|
### Parameters
|
|
|
|
Parameter | Type | Description
|
|
--------- | ---- | -----------
|
|
`a` | Array | Matrix | A multiset
|
|
|
|
### Returns
|
|
|
|
Type | Description
|
|
---- | -----------
|
|
number | The number of elements of the (multi)set
|
|
|
|
|
|
## Examples
|
|
|
|
```js
|
|
math.setSize([1, 2, 2, 4]); // returns 4
|
|
math.setSize([1, 2, 2, 4], true); // returns 3
|
|
```
|
|
|
|
|
|
## See also
|
|
|
|
[setUnion](setUnion.md),
|
|
[setIntersect](setIntersect.md),
|
|
[setDifference](setDifference.md)
|