48 lines
817 B
Markdown
48 lines
817 B
Markdown
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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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# Function acosh
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Calculate the hyperbolic arccos of a value,
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defined as `acosh(x) = ln(sqrt(x^2 - 1) + x)`.
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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.acosh(x)
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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 | Complex | Unit | Array | Matrix | Function input
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### Returns
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Type | Description
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---- | -----------
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number | Complex | Array | Matrix | Hyperbolic arccosine of x
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### Throws
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Type | Description
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---- | -----------
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## Examples
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```js
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math.acosh(1.5) // returns 0.9624236501192069
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```
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## See also
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[cosh](cosh.md),
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[asinh](asinh.md),
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[atanh](atanh.md)
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