Does javascript have a root function?

Javascript has a root function. In JavaScript, you can use the sqrt() function to find the square root, the syntax is "Math.sqrt(x)"; you can also use the pow() function to find the root of a specified power, the syntax is "pow(x,1/y) ”, which means opening the y-th root of x.

The operating environment of this tutorial: windows7 system, javascript version 1.8.5, Dell G3 computer.

Javascript has a root function.

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

• sqrt() function

• pow() function

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

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

This function does not support negative numbers. If the parameter is less than 0, it returns NaN.

Example:

<script>
	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));
</script>

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

pow(x,y) can return x raised to the y power.

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

Example:

<script>
	console.log(Math.pow(4,1/2));
	console.log(Math.pow(81,1/4));
	console.log(Math.pow(256,1/4));
</script>

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