u/Beneficial-Peak-6765

I've heard physicist David Tong claim that when physicists discovered quantum mechanics initially, they did not know of matrices. This seems pretty incredible to me, as matrices were known by mathematicians for a long time before that. Also, there are things like the inertia tensor, which is described using a matrix (in his book). It just seems very strange if that were true.

https://youtu.be/8RcA2BignDU?si=N1YSDN8TjFg-G92k&t=889

u/Beneficial-Peak-6765 — 8 days ago
▲ 158 r/math

I am thinking about an area that only a few people know. An area with no Wikipedia article and is very obscure. Obviously it would probably be the case that anyone who sees this post would not know it well. But, maybe they have heard of it or know someone who works in it.

reddit.com
u/Beneficial-Peak-6765 — 18 days ago