It never occured to me they were using machines for this, but of course they are:

One thought on “Fascinating

  1. Spectral decomposition actually predates quantum mechanics, it was Heisenberg and esp. Born, who introduced the already well-known methods of matrix algebra into QM, also too, Hamilton in the previous century had already named ‘characteristic vector’ in English, which was translated into ‘eigenvektor’, and subsequently re-translated into English as eignvector.
    R. A. Fisher also used matrix methods (trait-trait correlation matrix) in population genetics years before QM.

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