👉 Biharmonic is a term used in mathematics to describe the relationship between two periodic functions. It refers to the property of a function that allows it to be represented as a superposition of sine waves or other periodic functions, such as a square wave or an idealized sinusoidal signal. In mathematical terms, biharmonic means that the sum of the squares of the amplitude and phase shift of the two periodic functions is equal to zero. This property can be useful in analyzing the behavior of signals over
