Word Meaning 実数
じっすう
jissuu
実数 is read as じっすう (jissuu) and means real number.
Meaning
English
- real number
- actual number (as opposed to a speculative number)
- true number
Reading
Kana
じっすう
Romaji
jissuu
Stroke Sequence
2 Characters • 21 Total StrokesStudy Signals and Categories
Related Vocabulary
Max. 12Example Sentences
5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.
任意の実数xに対して2次不等式 x² + kx − 3k > 0 が成り立つような定数kの値の範囲を求めよ。
Determine the range of values of the constant k to which the quadratic inequality x² + kx - 3k > 0 holds for any real value of x.