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2
3# Function setDifference
4
5Create the difference of two (multi)sets: every element of set1, that is not the element of set2.
6Multi-dimension arrays will be converted to single-dimension arrays before the operation.
7
8
9## Syntax
10
11```js
12math.setDifference(set1, set2)
13```
14
15### Parameters
16
17Parameter | Type | Description
18--------- | ---- | -----------
19`a1` | Array &#124; Matrix | A (multi)set
20`a2` | Array &#124; Matrix | A (multi)set
21
22### Returns
23
24Type | Description
25---- | -----------
26Array &#124; Matrix | The difference of two (multi)sets
27
28
29## Examples
30
31```js
32math.setDifference([1, 2, 3, 4], [3, 4, 5, 6]) // returns [1, 2]
33math.setDifference([[1, 2], [3, 4]], [[3, 4], [5, 6]]) // returns [1, 2]
34```
35
36
37## See also
38
39[setUnion](setUnion.md),
40[setIntersect](setIntersect.md),
41[setSymDifference](setSymDifference.md)