Last Updated
：2026/01/08
複素数
Hiragana
ふくそすう
Noun
Japanese Meaning
複素数とは、実数と虚数からなる数の拡張概念で、a + bi（a, b は実数、i は虚数単位）という形で表される数のこと。 / 2次元平面上の点として表現できる数で、実数を横軸、虚数を縦軸にとった複素平面上の位置で表される数。 / 電気工学や波動解析などで、振幅や位相を同時に扱うために用いられる数学的対象。
Easy Japanese Meaning
ふつうのかずと、べつのぶぶんをあわせたかず。ふたつのぶぶんがある。
Chinese (Simplified) Meaning
复数（数学） / 由实部和虚部组成的数 / 形如 a+bi 的数
Chinese (Traditional) Meaning
複數 / 由實部與虛部組成的數 / 形如 a+bi 的數
Korean Meaning
실수부와 허수부로 이루어진 수 / 허수 단위 i를 사용해 표현되는 수 / 복소평면의 점을 나타내는 수
Indonesian
bilangan kompleks / bilangan dengan bagian real dan imajiner
Vietnamese Meaning
số phức / số gồm phần thực và phần ảo / số dạng a + bi với a, b là số thực
Tagalog Meaning
kompleks na bilang / kompleks na numero / bilang na may tunay at imahinaryong bahagi
Sense（1）
a complex number
（ canonical ）
（ romanization ）
（ hiragana ）
Quizzes for review
See correct answer
A complex number is a combination of a real number and an imaginary number.
A complex number is a combination of a real number and an imaginary number.
See correct answer
複素数は実数と虚数の組み合わせです。
Japanese - English
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