# 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 | Complex | Unit | Array | Matrix | Function input ### Returns Type | Description ---- | ----------- number | Complex | Array | Matrix | Cotangent of x ### Throws Type | Description ---- | ----------- ## 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)