mathjs/docs/reference/functions/stirlingS2.md
2015-05-04 14:13:58 -04:00

838 B

Function stirlingS2

Calculate the Stirling number of the second kind for partitioning a set of n elements into k nonempty sets.

Syntax

math.stirlingS2(n, k)

Parameters

Parameter Type Description
n Number | BigNumber Function input
k Number | BigNumber Function input

Returns

Type Description
Number | BigNumber The number of ways to partition a set of n elements into k nonempty sets.

Examples

math.stirlingS2(5, 2);           // returns Number 15
math.stirlingS2(math.bignumber(10), math.bignumber(4)); // returns Number 34105

See also

combinations.js