Try draw your own shape! (desktop only)
This is a famous example of the Fourier transform, which allows us to decompose signals (in this case a drawing) into its various frequencies. Isn't it satisfying?
During February 2023, I was invited to be a guest speaker for the Fort Richmond Collegiate in Canada, where I covered some elementary olympiad math. For me, chatting to like-minded math enthusiasts and sharing math knowledge was a deeply enriching experience.