UnitVectorFromOffset:

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   Computes a unit vector offset from v2 with origin at v1.
   It creates a random coordinate system with v2-v1 as the +z axis.
   cone is the angle from +z
   clock is the angle from +x in the xy-plane. This function is useful
   for creating a set of vectors but because the orientation of x and y
   is random you cannot externally specify the clock angle definition.

   Type UnitVectorFromOffset for a demo.

   Since version 8.
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   Forms:
   u = UnitVectorFromOffset
   u = UnitVectorFromOffset( v1, v2, cone )
   u = UnitVectorFromOffset( v1, v2, cone, clock )
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   ------
   Inputs
   ------
   v1            (3,1)        Origin 
   v2            (3,1)        Vector from which the offset is calcuated
   cone          (1,1)        Cone angle of the offset
   clock         (1,1)        Clock angle of the offset

   -------
   Outputs
   -------
   u             (3,1)        Unit vector with offset

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Children:

Math: Linear/Cross
Math: Linear/Dot
Math: Linear/Unit