De Moivre's formula I'm starting to study complex numbers, obviously we've work with De Moivre's formula. I was courious about the origin of it and i look for the original paper, I found it in the Philosophicis Transactionibus Num. 309, "De sectione Anguli", but only in latin, so some words are difficult to understand, however, on the math part I don't see where's the formula.

DeMoivre only suggested the formula in $1722$. It was Euler who proved it in $1749$. Later DeMoivre's formula was discovered not only for complex numbers, but also for quaternions.
