Does javascript have a root function?

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Javascript has a root function. In javascript, you can use the sqrt () function to find the square root, the syntax "Math.sqrt (x)", or you can use the pow () function to open the root sign of the specified power, and the syntax "pow (xmai 1compy)" represents the root of x to the y power.

The operating environment of this tutorial: windows7 system, javascript1.8.5 version, Dell G3 computer.

Javascript has a root function.

In javascript, you can use the following functions to open the root:

Sqrt () function

Pow () function

1. Use the sqrt () function to open the root sign

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

This function does not support negative numbers and returns NaN if the parameter is less than 0.

Example:

Console.log (Math.sqrt (1)); console.log (Math.sqrt (4)); console.log (Math.sqrt (9)); console.log (Math.sqrt (64)); console.log (Math.sqrt (- 9))

1. Use the pow () function to open the root sign

Pow (xPowery) returns x to the power of y.

When the parameter y is a fraction (greater than 0, less than 1), that is to say, pow (x _ meme _ 1p _ y) can open the y-th root of x.

Example:

Console.log (Math.pow (4); console.log (Math.pow (81); console.log (256))

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