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for 3 quaternions q,r,s; `q**r**s` is one the other is `s**(r**q)` got it. It is just reversing those terms...
Doesn't that then require they also have an account?
An easy way to do that is to add this to the notebook and evaluate it once. SetOptions[EvaluationNotebook[], AutoGeneratedPackage -> Automatic] Set the cells of functions you want to export as `Initialization` cells. With that setup,...
Oh I see it now, there is a 'r' referenced internally (again) with another thing I get it. that's not even itself used except when I was trying to debug...