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Math.acos()

Baseline Widely available

This feature is well established and works across many devices and browser versions. Its been available across browsers since 2015 ..

Math.acos() ( ),

x[-1;1],Math.acos(x)=arccos(x)= y[0;], cos(y)=x\forall x \in [{-1};1],;\mathtt{\operatorname{Math.acos}(x)} = \arccos(x) = \text{ } ; y \in [0; \pi] , \text{, } ; \cos(y) = x

In this article

Math.acos(x)

x

.

Math.acos() 0 x, -1 1. NaN, x .

acos() Math, Math.acos(), Math ( Math ).

: Math.acos()

js
Math.acos(-2); // NaN
Math.acos(-1); // 3.141592653589793
Math.acos(0); // 1.5707963267948966
Math.acos(0.5); // 1.0471975511965979
Math.acos(1); // 0
Math.acos(2); // NaN

, -1 1, Math.acos() NaN.

Specification
ECMAScript 2027 LanguageSpecification
# sec-math.acos

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  2. Math
    1. Math.abs()
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    3. Math.acosh()
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    7. Math.atan2()
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