Updates:
Status: Fixed
Cc: [email protected]
Comment #4 on issue 2838 by [email protected]: Move KroneckerDelta out of
the quantum module
http://code.google.com/p/sympy/issues/detail?id=2838
See https://github.com/sympy/sympy/pull/741. There were actually three
duplicate KroneckerDelta classes, one in the quantum module, one in
secondquant, and one in the functions module (this was called Dij). They
were all merged into one KroneckerDelta in the functions module, and a lot
of things cleaned up (like the printers).
One thing that was not fixed, is that it has both _dagger_ and
_eval_dagger. Are these both necessary? I have no idea what a dagger even
is :)
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