## COT Trigonometric Cotangent Function

Section: Mathematical Functions

### Usage

Computes the`cot`

function for its argument. The general
syntax for its use is
y = cot(x)

where `x`

is an `n`

-dimensional array of numerical type.
Integer types are promoted to the `double`

type prior to
calculation of the `cot`

function. Output `y`

is of the
same size and type as the input `x`

, (unless `x`

is an
integer, in which case `y`

is a `double`

type).

### Function Internals

Mathematically, the`cot`

function is defined for all
arguments `x`

as

For complex valued arguments `z`

, the cotangent is computed via

### Example

The following piece of code plots the real-valued`cot(x)`

function over the interval `[-1,1]`

:
--> t = linspace(-1,1); --> plot(t,cot(t))