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I have a question about $4D$ rotation:
I programmed a little $4D$ game and I used the classical hyper-sphere coordinates, to rotate a vector.

It works, but it has some problems:
(just for clarity I take the cartesian coordinates, translate in hypersphere coordinates, add the angle I wish than translate back to cartesian)
This procedure causes jumble locks and approximation errors.

I'm asking you if it is possible like in $3D$ to have quaterinions to manage the rotations?

I'll prefer not to use rotation matrix, which has other problems:

Thanks in advance for the help!
If you want to have a look at the game:
http://www.youtube.com/watch?v=8IUnqm8j4BE
http://www.youtube.com/watch?v=NaeqUp3jbls

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    I was going to ask this same question mysef, but my previous questions were quoted as references! I am using 4x4 matrix for rotations, but I was looking for something less resource intensive, like quaternions...2011-11-22

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