What are the functions for finding roots in javascript?

Function for finding roots in JavaScript: 1. sqrt() function, syntax "Math.sqrt(x)", which can calculate the square root of the number x; 2. pow() function, syntax "Math.pow( x,(1/y))", can calculate the y-th root of the number x.

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

javascript root finding

1. Use the sqrt() function

sqrt() method Returns the square root of a number.

Syntax:

Math.sqrt(x)

Example:

var x=9;
console.log(Math.sqrt(x));

Output result:

2. Use the pow() function

Math.pow(x,y)can raise the y power of x. When y is a decimal (1/y), it can be used for root calculation.

function f(x,y){
	y=1/y;
	console.log(Math.pow(x,y));
}
f(4,2);
f(125,3);
f(81,4);

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