Math.LOG2E

The Math.LOG2E property represents the base 2 logarithm of e, approximately 1.442:

$$\mathtt{\mi{Math.LOG2E}} = \log_2(e) \approx 1.442$$

Description

Because LOG2E is a static property of Math, you always use it as Math.LOG2E, rather than as a property of a Math object you created (Math is not a constructor).

Examples

Using Math.LOG2E

The following function returns the base 2 logarithm of e:

function getLog2e() {
  return Math.LOG2E;
}

getLog2e(); // 1.4426950408889634

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.LOG2E' in that specification.	Standard
ECMAScript 2015 (6th Edition, ECMA-262) The definition of 'Math.LOG2E' in that specification.	Standard
ECMAScript 2017 Draft (ECMA-262) The definition of 'Math.LOG2E' in that specification.	Draft

Browser compatibility

See also

• Math.exp()
• Math.log()
• Math.log2()