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Math.tanh()

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since ⁨2015年7月⁩.

Math.tanh() は静的メソッドで、数値のハイパーボリックタンジェントを返します。

𝙼𝚊𝚝𝚑.𝚝𝚊𝚗𝚑 (𝚡) = tanh (x) = \frac{sinh (x)}{cosh (x)} = \frac{e^{x} - e^{- x}}{e^{x} + e^{- x}} = \frac{e^{2 x} - 1}{e^{2 x} + 1}

試してみましょう

console.log(Math.tanh(-1));
// 予想される結果: -0.7615941559557649
console.log(Math.tanh(0));
// 予想される結果: 0
console.log(Math.tanh(Infinity));
// 予想される結果: 1
console.log(Math.tanh(1));
// 予想される結果: 0.7615941559557649

構文

Math.tanh(x)

引数

x: 数値です。

Math.tanh(-Infinity); // -1
Math.tanh(-0); // -0
Math.tanh(0); // 0
Math.tanh(1); // 0.7615941559557649
Math.tanh(Infinity); // 1

仕様書

Specification
ECMAScript® 2026 Language Specification # sec-math.tanh

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This page was last modified on ⁨2025年10月2日⁩ by MDN contributors.

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Math.tanh()

試してみましょう

構文

引数

返値

解説

例

Math.tanh() の使用

仕様書

ブラウザーの互換性

関連情報

Help improve MDN