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Math.SQRT2

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.SQRT2 は静的データプロパティで、2 の平方根、約 1.414 を表します。

試してみましょう

function getRoot2() {
  return Math.SQRT2;
}
console.log(getRoot2());
// 予想される結果: 1.4142135623730951

値

𝙼𝚊𝚝𝚑.𝚂𝚀𝚁𝚃𝟸 = \sqrt{2} \approx 1.414

`Math.SQRT2` のプロパティ属性
書込可能	不可
列挙可能	不可
設定可能	不可

function getRoot2() {
  return Math.SQRT2;
}
getRoot2(); // 1.4142135623730951

仕様書

Specification
ECMAScript® 2026 Language Specification # sec-math.sqrt2

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

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Math.SQRT2

試してみましょう

値

解説

例

Math.SQRT2 の使用

仕様書

ブラウザーの互換性

関連情報

Help improve MDN