mathjs/docs/reference/functions/bellNumbers.md
2015-05-31 14:29:42 +02:00

778 B

Function bellNumbers

The Bell Numbers count the number of partitions of a set. A partition is a pairwise disjoint subset of S whose union is S. bellNumbers only takes integer arguments. The following condition must be enforced: n >= 0

Syntax

math.bellNumbers(n)

Parameters

Parameter Type Description
n Number | BigNumber Total number of objects in the set

Returns

Type Description
Number | BigNumber B(n)

Examples

math.bellNumbers(3); // returns 5;
math.bellNumbers(8); // returns 4140;

See also

stirlingS2