Helmholtz equation

The Helmholtz equation is a mathematical formula that describes how waves, such as sound or electromagnetic waves, behave in different environments. It helps scientists and engineers understand how these waves propagate, especially in situations with specific boundary conditions, like inside a room or around obstacles. Essentially, the equation relates the spatial distribution of the wave's amplitude to its frequency, enabling predictions about how waves will travel and interact with their surroundings. This is important in fields like acoustics, optics, and electromagnetic theory.