Hello There

I have two existing vectors. I wish to construct a third vector which is in the same plane as the existing 2 vectors, and makes a specific angle with one of them. What method could I use to do this?

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- Jul 20th 2012, 01:20 PMmephamahNeed help constructing a vector
Hello There

I have two existing vectors. I wish to construct a third vector which is in the same plane as the existing 2 vectors, and makes a specific angle with one of them. What method could I use to do this? - Jul 20th 2012, 02:30 PMa tutorRe: Need help constructing a vector
If we call your two vectors

**u**and**v**then the vector you want will be**u**+ a**v**with a chosen to achieve the required angle. You can use the scalar product**u**. (**u**+ a**v**) to help you.