4 ms·

> I skipped to i and j, but I am certain there are mathematicians out there who find that confusing, too. IME it's pretty standard in most of mathematics to us

> I skipped to i and j, but I am certain there are mathematicians out there who find that confusing, too. IME it's pretty standard in most of mathematics to use "i" and "j" as index variables when e.g. doing sums and products over indices/sets. (Though I suppose you could be talking about the use of i, j, k as axes?)

krylon 9y ago
I think in Quaternions, i, j, and k are the non-real components.
- lomnakkus 9y ago
  Good point, I'd missed that one! :) What does one for index variables in that notation? Or is the main point of q notation that you don't need index variables? ;)