Not DCT, but this website [1] has been on my TODO list for awhile. It explains DFT using interactive visualizations. [1] https://jackschaedler.github.io/circle

Not DCT, but this website [1] has been on my TODO list for awhile. It explains DFT using interactive visualizations. [1] https://jackschaedler.github.io/circles-sines-signals/index.html https://jackschaedler.github.io/circles-sines-signals/index....