I'm not really sure if it's considered a Fourier Series, or a Fourier Transform (or if theres a difference!), but I saw a smarter every day video on it, I tried to make one myself! The angular speed controls the speed that the circle rotates at.
Took inspiration from the smarter every day video on Fourier Series. https://www.youtube.com/watch?v=ds0cmAV-Yek
