Last Updated：2025/11/20

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(mathematics) Any real number that cannot be expressed as a ratio of two integers.

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irrational number

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Source Word

irrational number

Noun

(mathematics) Any real number that cannot be expressed as a ratio of two integers.

Japanese Meaning

無理数 – 整数の比（分数）として表現できない実数

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Google Translation / DeepL Translation

2の平方根が無理数であるという発見は、すべての数が整数の比として表せるというピタゴラス派の信念に挑戦しました。

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Sense（1）

(mathematics) Any real number that cannot be expressed as a ratio of two integers.

The square root of a positive integer is an irrational number unless the positive integer is a perfect square, in which case the square root will also be a positive integer.

Google Translation / DeepL Translation

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irrational numbers

（ plural ）

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irrational number

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irrational number

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