files/en-us/web/javascript/reference/global_objects/math/ln2/index.md

metadata

title: Math.LN2
short-title: LN2
slug: Web/JavaScript/Reference/Global_Objects/Math/LN2
page-type: javascript-static-data-property
browser-compat: javascript.builtins.Math.LN2
sidebar: jsref

The Math.LN2 static data property represents the natural logarithm of 2, approximately 0.693:

{{InteractiveExample("JavaScript Demo: Math.LN2", "shorter")}}

function getNatLog2() {
  return Math.LN2;
}

console.log(getNatLog2());
// Expected output: 0.6931471805599453

Value

$$\mathrm{𝙼𝚊𝚝𝚑.𝙻𝙽𝟸}=ln(2)\approx 0.693\backslash mathtt\{Math.LN2\}\; =\; \backslash ln(2)\; \backslash approx\; 0.693$$

{{js_property_attributes(0, 0, 0)}}

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

{{Specifications}}

Browser compatibility

{{Compat}}

See also

• {{jsxref("Math.exp()")}}
• {{jsxref("Math.log()")}}
• {{jsxref("Math.log2()")}}