Oops, Linear algebra. Is that really necessary? Or, is this coming down 'hard'? I guess so. In a dispute, if someone cannot swim invite them into the water strategy. It is much more difficult to meet issues on common ground. A bit frustrating for you considering the relevance of eigenvalues in dealing with fields and particles in space.It gets quite complex but that is my answer to your question !
Nice if a further explanation could be given. It is a discussion, not a gladiator arena - or maybe I am wrong.
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