Quanta Magazine on X: "The textbook method for multiplying two-by-two matrices requires 8 multiplications, plus some additions. Generally, this way of multiplying two n-by-n matrices together requires n³ multiplications along the way.
latex matrices
How to align matrices like this : r/LaTeX
Tutorial on How to Write Vectors and Matrices in LaTeX - YouTube
Converting R matrix into LaTeX matrix in the math or equation environment - Stack Overflow