Math.atan()
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.
概述
Math.atan()
函数返回一个数值的反正切(以弧度为单位),即:
语法
Math.atan(x)
参数
x
-
一个数值
描述
atan
返回一个 到 弧度之间的数值。
由于 atan
是 Math
的静态方法,所以应该像这样使用:Math.atan()
,而不是作为你创建的 Math
实例的方法。
示例
示例:使用 Math.atan
js
Math.atan(1); // 0.7853981633974483
Math.atan(0); // 0
规范
Specification |
---|
ECMAScript® 2025 Language Specification # sec-math.atan |
浏览器兼容性
Report problems with this compatibility data on GitHubdesktop | mobile | server | ||||||||||||
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atan |
Legend
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- Full support
- Full support
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