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Edited the examples section to make it clear that the z-rotation matrix works for any angle while the example with 16.26 degrees is just one possibility. Also made sure to use the correct symbol for approximation. |
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In Lie group terms, this means that the [[Lie algebra]] of an orthogonal matrix group consists of [[skew-symmetric matrix|skew-symmetric matrices]]. Going the other direction, the [[matrix exponential]] of any skew-symmetric matrix is an orthogonal matrix (in fact, special orthogonal).
For example, the three-dimensional object physics
:<math>
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