# ACOT

**The ACOT function returns the arccotangent of a number.**

This function takes a single [Number](../../variable-data-types/the-number-variable-data-type) as input. It outputs that Number's inverse cotangent in radians.

#### Declaration

```javascript
ACOT(number) -> arccotangent
```

&#x20;

#### Parameters

**number** (required, type: _Number_) The number to calculate the arccotangent of.

#### Return Values

**arccotangent** (type: _number_) The arccotangent of the given number, in radians.&#x20;

#### Examples

The following example returns the arccotangent of 0.5. This is given as a numerical estimation of the angle in radians:

```javascript
ACOT(0.5) -> 1.1071487177940904
```

To calculate the arctangent in degrees, the ACIT function must be used in tandem with the [DEGREES](degrees) function, such as in the following example:

```javascript
DEGREES(ACOT(0.5)) -> 63.43494882292201
```
