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twizzler

Is there an intuitive way to visualize quaternions? It seems like it would be hard to do.

JavaSwing

This definition seems contradictory, as you could say i, j, and k all = sqrt(-1), but then ijk would be -sqrt(-1). How is this resolved?

dushuren

What does ijk equals to -1?

keliu

For the three imaginary parts: ij = k, jk = i and ki = j holds. (Just multiply ijk=-1 by some combinations of i, j and k.)