Around 1707, de Moivre discovered a connection between complex numbers and trigonometry. With the help of de Moivre’s formula, not only can multiple-angle identities be derived, but certain cubic equations can also be solved.

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Abraham de Moivre—A Brilliant Frenchman in English Exile

  • Heinz Klaus Strick

摘要

Around 1707, de Moivre discovered a connection between complex numbers and trigonometry. With the help of de Moivre’s formula, not only can multiple-angle identities be derived, but certain cubic equations can also be solved.