DeMoivre's theorem

noun

De·​Moi·​vre's theorem di-ˈmȯi-vərz-  -ˈmwäv(-rə)z- 

: a theorem of complex numbers: the nth power of a complex number has for its absolute value and its argument respectively the nth power of the absolute value and n times the argument of the complex number

Word History

Etymology

Abraham De Moivre †1754 French mathematician

First Known Use

1796, in the meaning defined above