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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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 JT Posts: 1,434 Registered: 4/7/12
Re: What does one call vector geometry without a coordinate system?
Posted: Sep 1, 2013 7:22 AM

Den lördagen den 31:e augusti 2013 kl. 01:30:23 UTC+2 skrev lite.o...@gmail.com:
> I remember in grade school (grade 8 or 9ish) we did geometry with vectors as a tool but without any coordinate system.
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> We often picked a random point and called it O, then proved things like if M was midpoint between two points A, B, then:
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> OM = 1/2 * (OA + OB)
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> A lot of stuff was proven with just points and vectors from points to other points (with the fact OX = -XO used heavily).
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> What's the name of this geometry? I'm thinking of looking this stuff up again.

I think this going somewhere there numbers not have an magnitude, but guess what it is wrong an offset is an magnitude.