👉 Flotorial, also known as a spherical harmonic function, is a series of complex numbers that represents a set of functions. These functions can be used to describe various phenomena in physics and engineering, including sound waves, electromagnetic fields, and even the Earth's surface. The definition of a flotorial involves summing up a sequence of complex numbers, where each term in the sequence is a spherical harmonic function. The first few terms of this series are known as fundamental harmonics, which can be