Last Updated
：2025/12/03
principal root
Noun
Japanese Meaning
数学において、n 乗するとその数の n 次根（被根）となる複素数の中で、実部が最も大きく、実部が同じ場合には正の虚部を持つもの。
（ plural ）
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(mathematics) A complex number which, when raised to the power of n, yields the radicand of its nth degree radical, and which has the greatest real part among all such numbers, and positive imaginary part in case of equality of the real parts.
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principal root
When solving the equation zn = w in the complex plane, we typically choose the principal root to represent the value with the maximal real part.
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When solving the equation zn = w in the complex plane, we typically choose the principal root to represent the value with the maximal real part.
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