I passed a class on linear algebra, and I think most of it made sense to me at the time. I can't remember anything of it now, except "Abelian" was a funny soun

I passed a class on linear algebra, and I think most of it made sense to me at the time. I can't remember anything of it now, except "Abelian" was a funny sounding word that was used a lot. I clicked around on this thing. I didn't find it illuminating at all.