The Fourier series is the basis for much of digital signal processing, ... If you don’t know what we mean by that, consider a simple example. You can teach a kid that 5×3 is 15.

Reviews ordinary differential equations, including solutions by Fourier series. Physical derivation of the classical linear partial differential equations (heat, wave, and Laplace equations). Solution ...

We’ve seen many graphical and animated explainers for the Fourier series. We suppose it is because it is so much fun to create the little moving pictures, and, as a bonus, it really helps exp… ...