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# a rotation matrix reprsentation?

what does the square root of a rotation matrix means geometrically?

### 2 Answers

- PeterLv 47 years agoFavorite Answer
Rotation by half the angle.

If R(theta/2) is the rotation matrix for angle theta/2, R(theta/2)*R(theta/2) is two rotations by theta/2, equivalent to a single rotation by theta which is R(theta)..

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- 3 years ago
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