Leonhard Euler - Wikipedia
https://en.wikipedia.org/wiki/Leonhard_EulerEuler's work in this area led to the development of the prime number theorem. Number theory. Euler's interest in number theory can be traced to the influence of Christian Goldbach, his friend in the St. Petersburg Academy. Much of Euler's early work on number theory was based on the work of Pierre de Fermat.
Online calculator: Complex numbers
https://planetcalc.com/7935Using Euler's form it is simple: This formula is derived from De Moivre's formula: n-th degree root. From De Moivre's formula, n nth roots of z (the power of 1/n) are given by:, there are n roots, where k = 0..n-1 - a root integer index. The roots can be displayed on the complex plane as regular polygon vertexes.