Math.asinh()
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The Math.asinh() static method returns the inverse hyperbolic sine of a number. That is,
Try it
console.log(Math.asinh(1));
// Expected output: 0.881373587019543
console.log(Math.asinh(0));
// Expected output: 0
console.log(Math.asinh(-1));
// Expected output: -0.881373587019543
console.log(Math.asinh(2));
// Expected output: 1.4436354751788103
Syntax
js
Math.asinh(x)
Parameters
x-
A number.
Return value
The inverse hyperbolic sine of x.
Description
Because asinh() is a static method of Math, you always use it as Math.asinh(), rather than as a method of a Math object you created (Math is not a constructor).
Examples
Using Math.asinh()
js
Math.asinh(-Infinity); // -Infinity
Math.asinh(-1); // -0.881373587019543
Math.asinh(-0); // -0
Math.asinh(0); // 0
Math.asinh(1); // 0.881373587019543
Math.asinh(Infinity); // Infinity
Specifications
| Specification |
|---|
| ECMAScript® 2026 Language Specification # sec-math.asinh |
Browser compatibility
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