principal root
Any of several electrical or mechanical devices that limit an operation to a single cycle.
Third-person singular simple present indicative form of drop out
plural of frappe
(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.
複素平面で方程式 z^n = w を解くとき、通常、n 乗すると被根になる複素数のうち実部が最も大きい（実部が等しい場合は虚部が正の）ものを値として選びます。
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DiQt
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