Fourier series, from the heat equation epicycles.
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12 minutes of pure Fourier series animations: https://youtu.be/-qgreAUpPwM
Some viewers made apps that create circle animations for your own drawing. Check them out!
Thanks to Stuart@Biocinematics for the one-line sketch of Fourier via twitter. As it happens, he also has an educational YouTube channel:
Small correction: at 9:33, all the exponents should have a pi^2 in them.
If you’re looking for more Fourier Series content online, including code to play with to create this kind of animation yourself, check out these…
Source: https://www.youtube.com/watch?v=r6sGWTCMz2k… Read more...