Math.sqrt Function (JavaScript)

Returns the square root of a number.

Syntax


Math.sqrt(  
number  
)   

Remarks

The required number argument is a numeric expression.

If number is negative, the return value is NaN.

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 Constants