Suddenly HN has decided that they're not visual learners anymore. Too bad, Keenan Crane from CMU has the best video course series on Discrete Differential Geometry:
https://www.youtube.com/playlist?list=PL9_jI1bdZmz0hIrNCMQW1...
https://www.youtube.com/playlist?list=PL9_jI1bdZmz0hIrNCMQW1...
I'd go further and say that mathematical and physics notation is beautiful unto itself. The evolution of symbols used to transmit abstraction is incredible. They are way of exploring patterns which can then be refined and layered using proven notational magic. So cool.