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()
靜態方法回傳數字的反雙曲正弦值。也就是說,
嘗試一下
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
語法
js
Math.asinh(x)
參數
x
-
一個數字。
回傳值
x
的反雙曲正弦值。
描述
由於 asinh()
是 Math
的靜態方法,你必須使用 Math.asinh()
來呼叫它,而非呼叫你建立的 Math
物件的方法(Math
並非建構子)。
範例
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
規範
Specification |
---|
ECMAScript® 2025 Language Specification # sec-math.asinh |
瀏覽器相容性
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asinh |
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- Full support
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