Re: [Phys-L] closed vectors

[Horst Wahl <wahl@hep.fsu.edu>]

It would be helpful to have the precise wording of the question.
One possible interpretation could be whether taking the cross product of 
any two of them
results in  a vector which is within the subspace spanned by the unit 
vectors

--
------------------------------
 Horst D. Wahl
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 wahl@hep.fsu.edu
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On 10/8/2014 13:15, frank cange wrote:
> Paul:  I think closed vectors refer to vectors that inside a closed surface.Frank Cange
>
> > From: plulai@stanthony.k12.mn.us
> > To: Phys-L@Phys-L.org
> > Date: Mon, 6 Oct 2014 18:32:34 +0000
> > Subject: [Phys-L] closed vectors
> >
> > Hello.
> > I am working through some problems and came upon a question I need some help with.
> > I have some basic unit vectors and I am asked if the set of unit vectors are closed when crossed.
> > It's been a while.
> >  From what I recall, closed simply means the vectors would create an enclosed shape.
> > - is this a correct interpretation?
> > - if not, could you clarify?
> >
> > I have no recollection of why this knowledge would be helpful for dot or cross products. Since it was asked, I imagine I am missing something.
> > - what am I missing (I assume quite a bit here)?
> >
> > Thanks for any insight you can provide.
> > Have a good one.
> > Paul.
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