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55 lines
1.5 KiB
Markdown
55 lines
1.5 KiB
Markdown
<!-- Note: This file is automatically generated from source code comments. Changes made in this file will be overridden. -->
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# Function cbrt
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Calculate the cubic root of a value.
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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.cbrt(x)
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math.cbrt(x, allRoots)
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```
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### Parameters
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Parameter | Type | Description
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--------- | ---- | -----------
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`x` | number | BigNumber | Complex | Unit | Array | Matrix | Value for which to calculate the cubic root.
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`allRoots` | boolean | Optional, false by default. Only applicable when `x` is a number or complex number. If true, all complex roots are returned, if false (default) the principal root is returned.
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### Returns
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Type | Description
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---- | -----------
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number | BigNumber | Complex | Unit | Array | Matrix | Returns the cubic root of `x`
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## Examples
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```js
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math.cbrt(27); // returns 3
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math.cube(3); // returns 27
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math.cbrt(-64); // returns -4
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math.cbrt(math.unit('27 m^3')); // returns Unit 3 m
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math.cbrt([27, 64, 125]); // returns [3, 4, 5]
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var x = math.complex('8i');
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math.cbrt(x); // returns Complex 1.7320508075689 + i
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math.cbrt(x, true); // returns Matrix [
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// 1.7320508075689 + i
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// -1.7320508075689 + i
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// -2i
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// ]
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```
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## See also
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[square](square.md),
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[sqrt](sqrt.md),
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[cube](cube.md)
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