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Matrix multiplication is noncommutative too. What made quaternions so particularly painful?
by nileshtrivedi 9y ago
Matrix multiplication is noncommutative too. What made quaternions so particularly painful?
- qubex 9y agoThey’re not particularly more painful than matrices (indeed you can represent quaterions as matrices, beyond their ”traditional” representation of a tuple of a scalar and a 3-vector), but there’s no point going through the pain since there’s alternative formulations of Maxwell’s laws (in terms of vectors) that are commutative and get you out of the pickle (at the expense of going from two to four equations).