Recent content by modafroman

Well then I'm lost as to what else it could be. None of my notes say anything differently than what I have done (in post 3, I see now what I did in the OP is crazy wrong :p)(even tho the example given uses polar co-ordinates)... The only other thing I can find after some googling is this page...

I was reading my notes and there was a similar question where he used dS, but I think that was just because it was in polar co-ords, which confused me. I think I ended up getting it out, where I did: int int T(u,v) du dv => int 0->2pi int 0->2pi 1 + b^2 sin^2 (v) du dv where T(u,v) was...

Homework Statement A torus is a surface obtained by rotating a circle about a straight line. (It looks like a doughnut.) If the z-axis is the axis of rotation and the circle has radius b, centre (0, a, 0) with a > b, and lies in y − z plane, the torus obtained has the parametric form r(u, v) =...