> What is interesting is what we can do with them. Yes, that was my point, that what you can do with quats is a strict subset of what you can do with 4x4 mats.

> What is interesting is what we can do with them. Yes, that was my point, that what you can do with quats is a strict subset of what you can do with 4x4 mats. Not sure what you thought I meant. > quaternions make a lot of things possible that are intractable Such as?