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# Function cot

Calculate the cotangent of a value. Defined as `cot(x) = 1 / tan(x)`.

For matrices, the function is evaluated element wise.


## Syntax

```js
math.cot(x)
```

### Parameters

Parameter | Type | Description
--------- | ---- | -----------
`x` | number &#124; Complex &#124; Unit &#124; Array &#124; Matrix | Function input

### Returns

Type | Description
---- | -----------
number &#124; Complex &#124; Array &#124; Matrix | Cotangent of x


## Examples

```js
math.cot(2)      // returns number -0.45765755436028577
1 / math.tan(2)  // returns number -0.45765755436028577
```


## See also

[tan](tan.md),
[sec](sec.md),
[csc](csc.md)
