# Math.pow()

The `Math.pow()` function returns the `base` to the `exponent` power, that is, `baseexponent`.

## Syntax

``Math.pow(base, exponent)``

### Parameters

`base`
The base number.
`exponent`
The exponent used to raise the `base`.

### Return value

A number representing the given base taken to the power of the given exponent.

## Description

Because `pow()` is a static method of `Math`, you always use it as `Math.pow()`, rather than as a method of a `Math` object you created (`Math` has no constructor).

## Examples

### Using `Math.pow()`

```// simple
Math.pow(7, 2);    // 49
Math.pow(7, 3);    // 343
Math.pow(2, 10);   // 1024
// fractional exponents
Math.pow(4, 0.5);  // 2 (square root of 4)
Math.pow(8, 1/3);  // 2 (cube root of 8)
Math.pow(2, 0.5);  // 1.4142135623730951 (square root of 2)
Math.pow(2, 1/3);  // 1.2599210498948732 (cube root of 2)
// signed exponents
Math.pow(7, -2);   // 0.02040816326530612 (1/49)
Math.pow(8, -1/3); // 0.5
// signed bases
Math.pow(-7, 2);   // 49 (squares are positive)
Math.pow(-7, 3);   // -343 (cubes can be negative)
Math.pow(-7, 0.5); // NaN (negative numbers don't have a real square root)
// due to "even" and "odd" roots laying close to each other,
// and limits in the floating number precision,
// negative bases with fractional exponents always return NaN
Math.pow(-7, 1/3); // NaN
```

## Specifications

Specification Status Comment
ECMAScript 1st Edition (ECMA-262) Standard Initial definition. Implemented in JavaScript 1.0.
ECMAScript 5.1 (ECMA-262)
The definition of 'Math.pow' in that specification.
Standard
ECMAScript 2015 (6th Edition, ECMA-262)
The definition of 'Math.pow' in that specification.
Standard
ECMAScript 2017 Draft (ECMA-262)
The definition of 'Math.pow' in that specification.
Draft

## Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support (Yes) (Yes) (Yes) (Yes) (Yes)
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support (Yes) (Yes) (Yes) (Yes) (Yes) (Yes)