Math.asinh()

Math.asinh() 静态方法返回数字的反双曲正弦值。那是，

¥The Math.asinh() static method returns the inverse hyperbolic sine of a number. That is,

𝙼𝚊𝚝𝚑.𝚊𝚜𝚒𝚗𝚑 ( 𝚡 ) = arsinh ( x ) = the unique  y  such that  sinh ( y ) = x = ln ( x + x 2 + 1 ) \begin{aligned}\mathtt{\operatorname{Math.asinh}(x)} &= \operatorname{arsinh}(x) = \text{the unique } y \text{ such that } \sinh(y) = x \&= \ln\left(x + \sqrt{x^2 + 1}\right)\end{aligned}

Try it

语法

¥Syntax

js
Math.asinh(x)

参数

¥Parameters

x

一个号码。

返回值

¥Return value

x 的反双曲正弦。

¥The inverse hyperbolic sine of x.

描述

¥Description

因为 asinh() 是 Math 的静态方法，所以你始终将其用作 Math.asinh()，而不是用作你创建的 Math 对象的方法（Math 不是构造函数）。

¥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).

示例

¥Examples

使用 Math.asinh()

¥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

规范

Specification
ECMAScript Language Specification
# sec-math.asinh

¥Specifications

浏览器兼容性

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¥Browser compatibility

也可以看看

¥See also