i fixed matrix multiplication notation, you can thank me later 😎😎

@acegikmo your "t"s are on the bottom and "b"s on the left

s/b/l/g
s/t/b/g

@dpwiz yeah?

@acegikmo so the l's would be on the left and b's on the bottom.

also, s/a/x/, so x's would be on a row/column intersections

@dpwiz what do you mean by s and x?

@acegikmo 's are just plural suffix.

x are variables in the middle matrix, that are now a