実数
じっすう
jissuu
thông dụng
Âm Hán-Việt: THỰC SỐ
意味Nghĩa
- danh từmathematics
1.real number
- danh từ
2.actual number (as opposed to a speculative number); true number
例文Câu ví dụ · Tatoeba
- これは実数ですか？
Is this a real number?
- これって、実数なの？
Is this a real number?
- 実数の集合は加法について閉じている。
The set of real numbers is closed under addition.
- 𝑥² = −1 となる数 𝑥（実数ではない）を sqrt(−1) または i と記して虚数単位と言う。
When x² = −1, the number x (which is not a real number) is written as "sqrt(−1)" or "i", and is called the imaginary unit.