Returns the tangent of a number.

## Syntax

```
Math.tan(
radians
)
```

## Remarks

The required `radians`

argument is a numeric expression that contains an angle measured in radians.

The return value is the tangent of the numeric argument of `radians`

.

## Requirements

Supported in the following document modes: Quirks, Internet Explorer 6 standards, Internet Explorer 7 standards, Internet Explorer 8 standards, Internet Explorer 9 standards, Internet Explorer 10 standards, Internet Explorer 11 standards. Also supported in Store apps (Windows 8 and Windows Phone 8.1). See Version Information.

**Applies To**: Math Object

## See Also

Math.acos Function

Math.asin Function

Math.atan Function

Math.atan2 Function

Math.cos Function

Math.sin Function