Source: cirosantilli/3x3-matrix-multiplication
= 3x3 matrix multiplication
* https://stackoverflow.com/questions/10827209/ladermans-3x3-matrix-multiplication-with-only-23-multiplications-is-it-worth-i#:~:text=Take%20the%20product%20of%20two,them%20in%20the%20right%20way.
* https://www.reddit.com/r/math/comments/p7xr66/til_that_we_dont_know_what_is_the_fastest_way_to/
* https://arxiv.org/abs/1905.10192