JavaScript Math.expm1()
Examples
let x = Math.expm1(3);
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let a = Math.exp(1);
let b = Math.exp(-1);
let c = Math.exp(5);
let d = Math.exp(10);
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Description
The expm1() method returns the value of Ex minus 1, where
E is Euler's number (approximately 2.7183) and x is the number passed to it.
This method is more accurate than using Math.exp() and subtracting 1.
JavaScript Logarthmic Functions:
The Math.log() MethodThe Math.log2() Method
The Math.log10() Method
The Math.log1p() Method
Logarthmic Properies:
The Math.LN2 PropertyThe Math.LN10 Property
The Math.LOG2E Property
The Math.LOG10E Property
Exponential Functions:
The Math.E Property (Euler's Number)The Math.exp() Method
The Math.expm1() Method
Syntax
Math.expm1(x)
Parameters
| Parameter | Description |
| x | Required. A number. |
Return Value
| Type | Description |
| Number | Ex minus 1 |
Browser Support
Math.expm1() is an ECMAScript6 (ES6) feature.
ES6 (JavaScript 2015) is supported in all modern browsers since June 2017:
| Chrome 51 | Edge 15 | Firefox 54 | Safari 10 | Opera 38 |
| May 2016 | Apr 2017 | Jun 2017 | Sep 2016 | Jun 2016 |
Math.expm1() is not supported in Internet Explorer.
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