[vorbis-dev] Dot Product

[programmer_ted]

Yep, I know they're the same but I was posting that in case it was helpful 
in some way.  The "I like yours a lot more though" was just saying that his 
way of calculating it was a whole lot more simple :D

At 07:15 AM 2/19/2004, you wrote:

<p>>On Wed, 18 Feb 2004, programmer_ted wrote:
>
> > I think the formal definition for the dot product is
> >
> > vector X . vector Y = |X||Y| cos theta
> >
> > where |X| is the norm of X and theta is the angle between the two vectors
> > are put tail to tail.  I like yours a lot more though.
>
>That method and the other way [ (a,b,c) . (x,y,z) = ax+by+cz ] are
>actually the same thing.  At least in your standard euclidian space.
>If you want to get overly picky I think that the said otherway is a touch
>more formal, if only because I always see the norm defined by the inner
>product.
>
>                                         -Pat
>
>p.s. I reserve the right to be wrong.
>
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