The bloody associativity issue is unresolved...? Of course it should be right associative. Otherwise ABx means (AB)x which is idiotic for numerical work. One

The bloody associativity issue is unresolved...? Of course it should be right associative. Otherwise ABx means (AB)x which is idiotic for numerical work. One would have to write A(Bx) to get reasonable performance which isn't far enough away from A.dot(B.dot(x)) to justify the implementation overhead. Lastly, as awful as it sounds, it is nice when awfully expensive things like 10K by 10K matmats have some visual weight. It makes people think about how they're written down.