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Rotating vector x around vector z

  1. Aug 12, 2003 #1


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    Is this how it should be done (rotating vector x around vector z for alpha degrees):
    assumes |x|*|z|<>0
    assumes |x|<>0
  2. jcsd
  3. Aug 12, 2003 #2


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    actually y=croos_vector(z,(x-xonz))/|x-xonz|^2
  4. Aug 12, 2003 #3
    Not quite. I should say:

    answer = xonz + y cos [alpha] + z/|z| X y sin [alpha].

    Where X means vector product. And y = x - xonz.

    Note: There should be a simpler form to this. Try yourself, please!
    Last edited: Aug 12, 2003
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