AClassicalCaseOfConfusion
Reputation
Next privilege 50 Rep.
Comment everywhere
 Oct 23 answered Find total energy and momentum of an moving electron in a rest frame Oct 23 revised Can I find a potential function in the usual way if the central field contains $t$ in its magnitude? According to comment, the equation should've been for the force F not U. Oct 23 suggested approved edit on Can I find a potential function in the usual way if the central field contains $t$ in its magnitude? Oct 22 comment How do I integrate $\frac{1}{\Psi}\frac{\partial \Psi}{\partial x} = Cx$ Look, I'm not sure this is going to be helpful for anyone to read. Neither of us disagree about the definitions of partial derivatives, nor about the solution to the problem. I only posted as I felt that your first post may have said something unclear. The edit you made to your answer is sufficient to point out the assumption in your first proof, and to avoid any misinterpretation. I'd like to leave it at that. Oct 22 comment How do I integrate $\frac{1}{\Psi}\frac{\partial \Psi}{\partial x} = Cx$ It's clear that you know how to do this problem; I wasn't trying to put that in doubt. However, I disagree with the statement I quoted, and again with "treating it as ordinary is fine as there is no explicit reason not to". The explicit reason is that it is not the same operator. Making incorrect statements only leaves the possibility of confusion for those less familiar with this kind of material. Oct 18 awarded Teacher Oct 18 answered How do I integrate $\frac{1}{\Psi}\frac{\partial \Psi}{\partial x} = Cx$ Oct 15 comment Does air resistance ever slow a particle down to zero velocity? No problem. It's not just $\alpha<0$ though! For example, try $\alpha=\frac{1}{2}$. Oct 14 awarded Editor Oct 14 revised Does air resistance ever slow a particle down to zero velocity? Comment on units. Oct 14 answered Does air resistance ever slow a particle down to zero velocity? Sep 21 awarded Student Sep 21 comment Classical scalar field correlation function Maybe I'm being foolish, but surely your answer only works in a quantum field theory. I was under the impression that Strassler was talking about an analogous quantity in classical field theory. Sep 21 asked Classical scalar field correlation function