CAS: 0/0 is undefined, however 1/0 is infinite?

[Tim Wessman]

It's not returning infinity, both are returning "complex infinity" which is a different concept entirely and the most correct thing that could be returned.

Home, which is numeric only and where students should be until they get into specifically looking at CAS type operations just reports an error. The point is that the teacher can choose when and if to talk about the more correct and complex mathematical part.