mathjs/docs/reference/functions/setDifference.md

Function setDifference

Create the difference of two (multi)sets: every element of set1, that is not the element of set2. Multi-dimension arrays will be converted to single-dimension arrays before the operation.

Syntax

math.setDifference(set1, set2)

Parameters

Parameter	Type	Description
a1	Array | Matrix	A (multi)set
a2	Array | Matrix	A (multi)set

Returns

Type	Description
Array | Matrix	The difference of two (multi)sets

Examples

math.setDifference([1, 2, 3, 4], [3, 4, 5, 6]);            // returns [1, 2]
math.setDifference([[1, 2], [3, 4]], [[3, 4], [5, 6]]);    // returns [1, 2]

See also

setUnion, setIntersect, setSymDifference