| 1. | A vector is called a unit vector if ? } }.
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| 2. | The time-derivatives of these unit vectors are found next.
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| 3. | Where the are the orthogonal unit vectors pointing in the coordinate directions.
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| 4. | The converse is true for the dot product of two unit vectors.
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| 5. | A versor can be defined as the quotient of two unit vectors.
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| 6. | Similarly unit vectors can be used to simplify the calculations.
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| 7. | The unit vector basis of is not weakly Cauchy.
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| 8. | Simply convert them all to unit vectors then use Rodrigues'rotation formula.
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| 9. | The first two numbers come from the unit vector that specifies a rotation axis.
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| 10. | Unit vectors may be used to represent the axes of a Cartesian coordinate system.
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