My university math teacher always told me (in a thick Russian accent) that when you take an infinite series time expansion and express it over a finite period of time in the frequency domain, ...

The FFT is an algorithm that reduces the calculation time of the DFT (Discrete Fourier Transform), an analysis tool that lets you view acquired time domain (amplitude vs. time) data in the frequency ...

One such example is the application of the Fourier transform, which transforms a data set from the time domain into the frequency domain. Yet what is this frequency domain really? After enticing ...