Relearning Matrices as Linear Functions
Many of us have probably encountered matrices at some point in math. They’re these tables with seemingly byzantine rules for combining them. Take the first element of the first row, first element of the first column, multiply them together, then add, then spin three times fast… And this is to say nothing for the rules of inverting.
Source: Relearning Matrices as Linear Functions by Dhruv Parthasarathy.