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seen Aug 23 '13 at 0:35

Aug
22
comment Arbitrarily using Sin and Cos as eigenfunctions of a Hamiltonian?
Hey is there any way to view old answers that have been deleted? I came back here to check something in the other method and someone seems to have deleted it again!
Aug
13
comment Arbitrarily using Sin and Cos as eigenfunctions of a Hamiltonian?
I don't think there's any harm in leaving up alternate answers - might help if it's easier for someone who thinks differently.
Aug
13
comment Arbitrarily using Sin and Cos as eigenfunctions of a Hamiltonian?
Thanks for the comments, that definitely helps. As a matter of interest, what happened to the other answer? Did someone take it down?
Aug
13
comment Arbitrarily using Sin and Cos as eigenfunctions of a Hamiltonian?
Thanks, can you explain why all of the orthonormal bases have this property or point me to some reference? Also, how would I systematically determine $\theta$?
May
1
comment A specific problem in changing the order of integrals.
Hey, loving the Iverson bracket notation, thanks.
May
1
comment A specific problem in changing the order of integrals.
Sorry I looked at it again, I see what you mean - I should really think before commenting!
May
1
comment A specific problem in changing the order of integrals.
I'm sorry, but I'm not quite sure how we can assume that the domain is initially a right triangle?