# COS

## Content

This function returns the cosine of the specified angle.

## Syntax

`COS(angle)`

## Arguments

This function can take any real number as an argument. The *angle* argument is the angle in radians for which you want the cosine.

## Remarks

If the angle is in degrees, multiply it by PI/180 to convert it to radians.

## Data Types

Accepts numeric data. Returns numeric data.

## Examples

`COS(B2)`

`COS(R1C3)`

`COS(45\*PI()/180)` gives the result 0.7071067812

`COS(RADIANS(30))`