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