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Re:How Quaternions encode rotations: derivation and sample code by jerf on Wednesday September 07, 2016 @11:06AM (#12443992)
"Continuous growth in a circle" may indeed be a personal visualization, but "complex numbers are deeply connected to rotation" is a mainstream point of view in mathematics.
Re:How Quaternions encode rotations: derivation and sample code by jordigh on Wednesday September 07, 2016 @11:22AM (#12444126)
Sure, complex multiplication is rotation, no problem with that part. To multiply two complex numbers you add their angles and multiply their lengths.