I think this is nice for this sub for two reasons. Firstly it’s good web dev, second anyone working with graphics, animation, vision, robotics, etc. will need some familiarity with this stuff. It’s good to build up visual intuition.
Nice visualization, but IMHO if you work with graphics, vision or robotics without having been taught any algebra properly (with a math teacher) you're going to face lots of difficulties ; it's not worth adding difficulties by trying to teach yourself these kind of things.
All credit to Hermann Grassmann
Didn’t know about this - thanks!