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.

Math.asinh() 返回一个数值的反双曲正弦值,即:

Math.asinh(x)=arsinh(x)= the unique ysuch thatsinh(y)=x\mathtt{\operatorname{Math.asinh}(x)} = \operatorname{arsinh}(x) = \text{ the unique } ; y ; \text{such that} ; \sinh(y) = x

尝试一下

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

语法

Math.asinh(x)

参数

x

一个数值。

返回值

返回指定数值的反双曲正弦值。

描述

由于 asinh()Math 的静态方法,所以应该像这样使用:Math.asinh(),而不是作为你创建的 Math 实例的方法(Math 不是一个构造函数)。

示例

使用 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

规范

Specification
ECMAScript® 2025 Language Specification
# sec-math.asinh

浏览器兼容性

Report problems with this compatibility data on GitHub
desktopmobileserver
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
Deno
Node.js
asinh

Legend

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Full support
Full support

参见