English Dictionary

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.

日本語の意味

数学において、実数とは収束する有理数列の極限値を表す数であり、その極限は有理数である場合も無理数である場合も含む。 / 数学の連続体を構成する数全体、つまり有理数と無理数の双方を含む数の集合。

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.

有理数の収束列の極限が無理数であっても、その極限は実数と見なされ、数直線の一部として扱われます。

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.

意味（2）

(computing) A floating-point number.

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

real numbers （ plural ）