# cos

This topic describes the syntax and usage of the **cos **function in Zoho Creator .

## Description

The **cos **function returns a decimal specifying the cosine of an angle.

## Syntax

<number>.cos()

(or)

cos(<number>); // This format is supported only in free-flow scripting mode of script builder.

The cos function syntax has the following arguments:

Number - Required. The number (integer/decimal) that expresses an angle in radians.

## Return Value

Returns a decimal value representing the cosine of an angle.

## Example

var = cos(1.5);

(or)

var = (1.5).cos();