Reply To: quadrupole operator homepage › Forums › axial symmetry › quadrupole operator › Reply To: quadrupole operator March 13, 2021 at 2:00 pm #3697 Score: 0 Art WillemsParticipant Pardon me, when I said determinant, I meant trace. In the trace we can shift the terms around, so we can see this as a way of mirroring.