Math.cosh()

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.cosh() 函数返回数值的双曲余弦函数,可用 constant e 表示:

Math.cosh(x)=ex+e-x2\mathtt{\operatorname{Math.cosh(x)}} = \frac{e^x + e^{-x}}{2}

语法

Math.cosh(x)

参数

x

数值。

描述

由于 cosh() 是 Math 的静态函数,只需通过 Math.cosh() 调用,而不用通过创建 Math 对象来调用。

示例

使用 Math.cosh()

js
Math.cosh(0); // 1
Math.cosh(1); // 1.5430806348152437
Math.cosh(-1); // 1.5430806348152437

规范

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

浏览器兼容性

Report problems with this compatibility data on GitHub
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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
cosh

Legend

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Full support
Full support

参见