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单词 de Moivre's theorem
释义

de Moivre's theorem

/də ˈmwɑːvr(ə) /
noun Mathematics
A theorem which states that (cos θ + i sin θ)n = cos nθ + i sin nθ, where i is the square root of −1.The de Moivre's theorem is used very often in electrical engineering and physics to determine things like the phase shifts of alternating currents.

Origin

Early 18th century: named after Abraham de Moivre (1667–1754), French-born mathematician, fellow of the Royal Society.

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更新时间:2024/11/10 14:02:54