Shrim
Reputation
Top tag
Next privilege 5 Rep.
Participate in meta
2
Impact
~2k people reached

• 0 posts edited

# 11 Actions

 Oct 30 awarded Popular Question Jul 8 answered pattern of moving electrons in wire under AC Jul 3 awarded Scholar Jul 3 accepted Rotation of parabola Jul 3 comment Rotation of parabola yea, that makes sense to me. Thanks for the help Jul 3 comment Rotation of parabola And it has to be an arbitrary axis, which makes the algebra using a rotation matrix pretty bad. Jul 3 comment Rotation of parabola ray tracing because I am changing a bunch of parameters and am trying to optimize concentration numerically. Jul 3 comment Rotation of parabola powerfromthesun.net/Book/chapter09/chapter09_files/image011.jpg The bold lines are what I want to define in matlab as a reflective surface. Only problem is parabolas have tilted axes. So I would like to rotate and then select for the lower term of the quadratic (making it a function). Jul 3 comment Rotation of parabola Thanks for the response, btw Jul 3 comment Rotation of parabola so from the rotated parameterized matrix at the end, converting this back to x and y simply gives [xcos() + ysin(), -xsin() + ycos()], which is just [x,y] rotated by theta, correct? Is there a specific way to convert this back into cartesian to be useful? Jul 3 asked Rotation of parabola