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45 lines
951 B
Markdown
45 lines
951 B
Markdown
# Function gamma
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Compute the gamma function of a value using Lanczos approximation for
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small values, and an extended Stirling approximation for large values.
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For matrices, the function is evaluated element wise.
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## Syntax
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```js
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math.gamma(n)
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```
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### Parameters
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Parameter | Type | Description
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--------- | ---- | -----------
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`n` | Number | Array | Matrix | Boolean | null | A real or complex number
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### Returns
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Type | Description
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---- | -----------
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Number | Array | Matrix | The gamma of `n`
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## Examples
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```js
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math.gamma(5); // returns 24
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math.gamma(-0.5); // returns -3.5449077018110335
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math.gamma(math.i); // returns -0.15494982830180973 - 0.49801566811835596i
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```
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## See also
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[combinations](combinations.md),
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[factorial](factorial.md),
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[permutations](permutations.md)
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