real number

英語（米国） (en-US) 英語（イギリス） (en-GB)

名詞

(mathematics) The limit of a convergent sequence of rational numbers, whether the limit is a rational number such as 2, -5, or 2/7 or whether the limit is an irrational number such as the square root of two or the circumference of the circle whose radius is one.

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Even if the limit of a convergent sequence of rational numbers is irrational, we regard that limit as a real number and treat it as part of the number line.

詳細

意味（1）

(mathematics) The limit of a convergent sequence of rational numbers, whether the limit is a rational number such as 2, -5, or 2/7 or whether the limit is an irrational number such as the square root of two or the circumference of the circle whose radius is one.

Every integer is a real number, but not vice versa.

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意味（2）

(computing) A floating-point number.

Even if you pass sqrt an integer, it returns a real number.

詳細

real numbers （ plural ）