The Math.exp()
function returns ex
, where x
is the argument, and e
is Euler's number (also known as Napier's constant), the base of the natural logarithms.
Math.exp(x)
x
A number representing ex
, where e
is Euler's number and x
is the argument.
Because exp()
is a static method of Math
, you always use it as Math.exp()
, rather than as a method of a Math
object you created (Math
is not a constructor).
Math.exp()
Math.exp(-1); // 0.36787944117144233 Math.exp(0); // 1 Math.exp(1); // 2.718281828459045
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.exp' in that specification. | Standard | |
ECMAScript 2015 (6th Edition, ECMA-262) The definition of 'Math.exp' in that specification. | Standard | |
ECMAScript Latest Draft (ECMA-262) The definition of 'Math.exp' in that specification. | Draft |
Desktop | ||||||
---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
Basic support | Yes | Yes | 1 | Yes | Yes | Yes |
Mobile | |||||||
---|---|---|---|---|---|---|---|
Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
Basic support | Yes | Yes | Yes | 4 | Yes | Yes | Yes |
Server | |
---|---|
Node.js | |
Basic support | Yes |
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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/exp