虚数

意味Nghĩa

1. danh từmathematics

   1.imaginary number

例文Câu ví dụ · Tatoeba

• 𝑥² = −1 となる数(かず) 𝑥（実数(じっすう)ではない）を sqrt(−1) または i と記し(しるし)て虚数(きょすう)単位(たんい)と言う(いう)。

  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.