I found the 3Blue1Brown explanation to be more intuitive to understand, but this article has more practical examples/details. Here's the 3Blue1Brown explanatio

I found the 3Blue1Brown explanation to be more intuitive to understand, but this article has more practical examples/details. Here's the 3Blue1Brown explanation: https://www.youtube.com/watch?v=spUNpyF58BY https://www.youtube.com/watch?v=spUNpyF58BY https://www.3blue1brown.com/lessons/fourier-transforms https://www.3blue1brown.com/lessons/fourier-transforms