JavaScript Arithmetic (Math) Exponentiation (Math.pow() or **)
Example
Exponentiation makes the second operand the power of the first operand (ab).
var a = 2,
b = 3,
c = Math.pow(a, b);
c will now be 8
6
Stage 3 ES2016 (ECMAScript 7) Proposal:
let a = 2,
b = 3,
c = a ** b;
c will now be 8
Use Math.pow to find the nth root of a number.
Finding the nth roots is the inverse of raising to the nth power. For example 2 to the power of 5 is 32. The 5th root of 32 is 2.
Math.pow(v, 1 / n); // where v is any positive real number
// and n is any positive integer
var a = 16;
var b = Math.pow(a, 1 / 2); // return the square root of 16 = 4
var c = Math.pow(a, 1 / 3); // return the cubed root of 16 = 2.5198420997897464
var d = Math.pow(a, 1 / 4); // return the 4th root of 16 = 2
