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50 lines
1.3 KiB
Markdown
50 lines
1.3 KiB
Markdown
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layout: default
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---
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<!-- Note: This file is automatically generated from source code comments. Changes made in this file will be overridden. -->
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<h1 id="function-bellnumbers">Function bellNumbers <a href="#function-bellnumbers" title="Permalink">#</a></h1>
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The Bell Numbers count the number of partitions of a set. A partition is a pairwise disjoint subset of S whose union is S.
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bellNumbers only takes integer arguments.
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The following condition must be enforced: n >= 0
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<h2 id="syntax">Syntax <a href="#syntax" title="Permalink">#</a></h2>
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```js
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math.bellNumbers(n)
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```
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<h3 id="parameters">Parameters <a href="#parameters" title="Permalink">#</a></h3>
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Parameter | Type | Description
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--------- | ---- | -----------
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`n` | Number | BigNumber | Total number of objects in the set
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<h3 id="returns">Returns <a href="#returns" title="Permalink">#</a></h3>
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Type | Description
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---- | -----------
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Number | BigNumber | B(n)
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<h3 id="throws">Throws <a href="#throws" title="Permalink">#</a></h3>
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Type | Description
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---- | -----------
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<h2 id="examples">Examples <a href="#examples" title="Permalink">#</a></h2>
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```js
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math.bellNumbers(3) // returns 5
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math.bellNumbers(8) // returns 4140
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```
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<h2 id="see-also">See also <a href="#see-also" title="Permalink">#</a></h2>
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[stirlingS2](stirlingS2.html)
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