Last Updated
：2026/01/08
対数
Hiragana
たいすう
Noun
Japanese Meaning
数学において、ある数を底として別の数を表す際に用いられる指数の値。特に、指数関数の逆関数として定義される関数や、その結果として得られる値。 / 数量の増減や比率を扱いやすくするために、元の数値を対数変換した値。 / 音響、地震、化学濃度など、非常に大きな範囲に渡る物理量を扱う際に用いられる尺度（デシベルなど）で用いられる数学的概念。
Easy Japanese Meaning
もとの数をきめて、何回かけてその数になるかをあらわす数。
Chinese (Simplified) Meaning
对数 / 指数的逆运算 / 某一底数下的幂指数
Chinese (Traditional) Meaning
冪運算的反運算 / 在給定底數下，表示某數之指數的數值 / 記作 log 的數學函數
Korean Meaning
(수학) 어떤 밑을 몇 제곱해야 주어진 수가 되는지 나타내는 지수. / 로그(=대수).
Indonesian
logaritma / nilai pangkat yang diperlukan agar suatu basis menghasilkan bilangan tertentu
Vietnamese Meaning
logarit / số mũ mà cơ số phải nâng lên để được một số đã cho
Tagalog Meaning
logaritmo (sa matematika) / eksponente na kailangan sa isang base upang makuha ang isang bilang
Sense（1）
(mathematics) logarithm
（ canonical ）
（ romanization ）
（ kyūjitai ）
（ hiragana ）
Quizzes for review
See correct answer
対数
See correct answer
Calculating logarithms is an important part of mathematics.
Calculating logarithms is an important part of mathematics.
See correct answer
対数の計算は数学の重要な部分です。
Japanese - English
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