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Math.sqrt Function (JavaScript)

Returns the square root of a number.

Math.sqrt(number) 

The required number argument is a numeric expression.

If number is negative, the return value is NaN.

Supported in the following document modes: Quirks, Internet Explorer 6 standards, Internet Explorer 7 standards, Internet Explorer 8 standards, Internet Explorer 9 standards. See Version Information.

Applies To: Math Object (JavaScript)

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