The Math.LN2
property represents the natural logarithm of 2, approximately 0.693:
Property attributes of Math.LN2 |
|
---|---|
Writable | no |
Enumerable | no |
Configurable | no |
Description
Because LN2
is a static property of Math
, you always use it as Math.LN2
, rather than as a property of a Math
object you created (Math
is not a constructor).
Examples
Using Math.LN2
The following function returns the natural log of 2:
function getNatLog2() { return Math.LN2; } getNatLog2(); // 0.6931471805599453
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.LN2' in that specification. |
Standard | |
ECMAScript 2015 (6th Edition, ECMA-262) The definition of 'Math.LN2' in that specification. |
Standard | |
ECMAScript 2017 Draft (ECMA-262) The definition of 'Math.LN2' 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) |