I won't write the whole thing(unless asked for from you guys), but I just want to ask where did cotQ come from in canonical transformation.(adsbygoogle = window.adsbygoogle || []).push({});

For instance, F(q,Q) = 1/2p[itex]_{(q,Q)}[/itex]q => [itex]\partial[/itex]F/[itex]\partial[/itex]q=1/2p+1/2*[itex]\partial[/itex]p/[itex]\partial[/itex]q=1/2(p+qcotQ)=p.

What is this? How did the last things come from??

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# Where did cotQ come from?

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