Recent content by big-ted

Argh! Vela had it right. I'd forgotten the constant when I completed the squares! If you guys hadn't already replied I'd go ahead and delete the thread. I guess instead my humiliation is engraved in html for all to see!Thanks for your help!

Homework Statement I have a charged particle in a 1D harmonic oscillator, on which an externally applied electric field acts, such that the Hamiltonian can be written: \frac{p^2}{2m}+\frac{kx^2}{2}-qEx The problem asks to first find the first (trivial) and second order corrections to...

Whoops, that was just a mistake in my copying code over to the forum. I had it as CrossProduct. Still no dice. I managed to do what I needed to do by specifying all the components explicitly. Ie: x = {1,0,0}; etc. It seems there should be a better way of doing this though, else what would even...

Hi all, I'm trying to do some vector analysis in Mathematica 6. I have the vector analysis package loaded via: << VectorAnalysis` I'm working in the default cartesian coordinate system, but just to be on the safe side I have set: SetCoordinates[Cartesian] The grad operator seems to work ok...