we have shroedinger's differential equation, heisenberg's matrix mechanics, dirac's formalism, and feynman sum over histories stuff.(adsbygoogle = window.adsbygoogle || []).push({});

now i may be wrong and and i really don't know anything but i think that these are all equivalent and some even the same thing. but if im going to learn QM for keeps, which is the most useful formalism? i see the point in wasting time learning one and then relearning how to do the same thing a different way. i think i might as well learn the best and just use that. any dissenting opinions on my aforementioned opinion appreciated. thx.

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# Most useful QM formalism?

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