How to rotate a vector by a quaternion?

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  1. A rotation through an angle of θ around the axis defined by a unit vector. can be represented by a quaternion. (...) find it strange to add a number to a vector,
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  2. How do you rotate a vector by a quaternion? Apologies for this very simple question, but I just can't find the operation in the Unity scripting reference.
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  7. Quaternion to rotate vector - posted in Math and Physics: I am trying to rotate a vector by a quaternion directly, using as few ops as possible. Therefore I am not
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