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Right, now that I can count properly (6 dof in symmetric matrices = 1+5), I realise that first order series represents a shift in the centre while second order gives the ellipsoid shapes.
Thanks for fixing up my thinking!
Tom_Drummond /
npub1g4…htq97
2025-04-09 23:01:33
in reply to nevent1q…wv4v
Author Public Key
npub1g4ss3v8573z4aus0ytsq3ewah9cphk5p48ffnfz5hp8htsc9ndjqphtq97Published at
2025-04-09 23:01:33Event JSON
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