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検索結果- 英語 - 多言語

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cardinal number

名詞

A number used to denote quantity; a counting number; a cardinal. / (mathematics) A generalized kind of number used to denote the size of a set, including infinite sets.

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関連語

plural

rational number

名詞

(mathematics) A number that can be expressed as the ratio of two integers.

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関連語

plural

atomic number

名詞

(physics, chemistry) The number of protons in an atom. Symbol: Z

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関連語

plural

imaginary number

名詞
狭義 広義

(complex analysis, strict sense) A number of the form bi, where b is any real number and i denotes the imaginary unit.

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関連語

plural

real number

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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関連語

plural

perfect number

名詞

(number theory) A number that is the sum of all of its divisors except itself.

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関連語

plural

ordinal number

名詞

(grammar) A word that expresses the relative position of an item in a sequence. / (arithmetic) A natural number used to denote position in a sequence.

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関連語

plural

phone number

名詞
口語

(colloquial) A telephone number.

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関連語

plural

number theory

名詞
不可算名詞

(mathematics) The branch of pure mathematics concerned with the properties of integers.

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number

IPA(発音記号)
動詞
他動詞 自動詞

(transitive) To label (items) with numbers; to assign numbers to (items). / (intransitive) To total or count; to amount to.

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関連語

present singular third-person

participle present

participle past

past

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