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Math Help - Rotation in 3d

  1. #1
    Newbie
    Joined
    Feb 2011
    Posts
    6

    Rotation in 3d

    I have a question that's puzzled me for some time. Can anyone explain?
    Will the normalized vector(1,1,1) and the vector(1,0,0) that's been rotated around the y-axis pi/4 rad and then pi/4 rad around it's own x-axis have the same value in it's x, y and z components?
    (That is if you rotate in the right directions though I don't know which they are)
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  2. #2
    Junior Member
    Joined
    Nov 2008
    Posts
    55

    Re: Rotation in 3d

    no it won't. draw a figure and you'll see:

    rotating it around the y axis pi/4 rad will result in x = sin(pi/4), y = 0, z = sin(pi/4).
    thereafter rotating it around the x-axis will result in x = sin(pi/4), y = sin^2(pi/4), z = sin^2(pi/4).
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