最終更新日：2025/11/19

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A real number that can not be expressed as the quotient of two integers, an irrational number.

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irrational

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元となった辞書の項目

irrational

IPA（発音記号）

/ɪˈɹæʃ.(ə.)nəl/

名詞

A real number that can not be expressed as the quotient of two integers, an irrational number.

日本語の意味

無理数

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During the lecture, the irrational puzzled several students who were used to dealing only with rational numbers.

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講義中、無理数は有理数しか扱ったことのない何人かの学生を困らせた。

詳細

意味（1）

A real number that can not be expressed as the quotient of two integers, an irrational number.

The square root of 2, which was the first irrational to be discovered, was known to the early Pythagoreans, and ingenious methods of approximating to its value were discovered.

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詳細

irrationals

（ plural ）

詳細

irrational

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irrational

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