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Topic: What does one call vector geometry without a coordinate system?
Replies: 32   Last Post: Sep 9, 2013 4:45 PM

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 William Elliot Posts: 2,637 Registered: 1/8/12
Re: What does one call vector geometry without a coordinate system?
Posted: Aug 30, 2013 10:25 PM
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On Sat, 31 Aug 2013, Sam Sung wrote:
> On Fri, 30 Aug 2013 16:30:23 -0700 (PDT), lite.on.beta@gmail.com wrote:
>

> > I remember in grade school (grade 8 or 9ish) we did geometry with vectors as a tool but without any coordinate system.
> >
> > We often picked a random point and called it O, then proved things like if
> > M was midpoint between two points A, B, then:
> >
> > OM = 1/2 * (OA + OB)
> >
> > A lot of stuff was proven with just points and vectors from points to
> > other points (with the fact OX = -XO used heavily).
> >
> > What's the name of this geometry? I'm thinking of looking this stuff up
> > again.

>
> They called it be topology...
>

That's wrong. It's a vector space.

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