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Description of  Felicitous Geometric Algebra: Carefully demystifying Euler's Identity

Well-dimensioned numbers vanquish the mystery of imaginary ones, like so: Various kinds have just the right elbow room to perform various kinds of dimensioned quarter turns. Two quarter turns is a half turn, direction reversal, multiplication by -1. That doesn't seem mysterious, does it? That is just a peek at the astonishing expressiveness of well-dimensioned numbers.. Read more