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Version: 3.27.2

Math.sqrt()

The Math.sqrt() function returns the square root of a number.

Syntax​

Math.sqrt(x)

Parameters​

  • x
    • : A number greater than or equal to 0.

Return value​

The square root of x, a nonnegative number. If x < 0, returns NaN.

Description​

Because sqrt() is a static method of Math, you always use it as Math.sqrt(), rather than as a method of a Math object you created (Math is not a constructor).