С днём Пи (14 марта, 3/14)!
https://youtu.be/d-o3eB9sfls?si=hJrUVLxXrgUiUfIu
Post #4464
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YouTube Why is pi here? And why is it squared? A geometric answer to the Basel problem A most beautiful proof of the Basel problem, using light. Help fund future projects: https://www.patreon.com/3blue1brown An equally valuable form of support is to simply share some of the videos. Special thanks to these supporters: http://3b1b.co/basel-thanks…