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Subject: "A geometry problem"     Previous Topic | Next Topic
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Sprit's
guest
Apr-29-02, 02:43 PM (EST)
 
"A geometry problem"
 
   I am having trouble figuring out how to disprove that the following matrix has a euclidian representation.


|x| |x| | |x| | |x| | |
|x| | |x| | |x| | |x| |
|x| | | |x| | |x| | |x|
| |x|x| | | | |x|x| | |
| |x| |x| |x| | | | |x|
| |x| | |x| |x| | |x| |
| | |x|x|x| | | | | | |
| | | | | |x|x|x| | | |
| | | | | | | | |x|x|x|

The rule is as following:
The matrix rows represent points, the matrix columns represent lines, the x'es show where a point lies on a line. No four points are collinear.

I hope this problem finds you entertained.
Thank you for your time.


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alexb
Charter Member
720 posts
May-01-02, 00:45 AM (EST)
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1. "RE: A geometry problem"
In response to message #0
 
   What is the euclidean representation?


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jrr7
guest
May-03-02, 04:26 PM (EST)
 
2. "RE: A geometry problem"
In response to message #1
 
   I searched on google.com and it appears to have something to do with projective geometry, but I can't understand what's being said.


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