👉 In physics, a fluxion is a mathematical object that describes the rate of change of a vector field. Fluxions are also known as scalar fields or vector potentials. They are used in electromagnetism to describe how electric and magnetic fields interact with each other. Fluxions can be defined either as a real-valued function on an open set E, where E is a subset of the complex plane C, or as a continuous mapping from R^n to R^m (where m > n