HackerTube / Video
Visualizing the 4d numbers Quaternions
3Blue1Brown
3Blue1Brown builds visual intuition for quaternions, showing how to think about this four-dimensional number system using stereographic projection and rotations in 3D space. It is part one of a two-part series with an interactive companion site.
HN commenters recommend it as the best visual explanation of quaternions and a good way to visualize higher dimensions.
7 Hacker News mentions · 2018–2023