Determining if a set of coordinates are within the same area

Posted by Dat on Stack Overflow See other posts from Stack Overflow or by Dat
Published on 2010-06-02T17:15:23Z Indexed on 2010/06/02 17:24 UTC
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c#

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coordinates

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cluster

When I say coordinates I mean latitude and longitude coordinates of earth. I want to determine if a set of coordinates are within the same area (my cutoff is 200 miles). I've been googling "cluster alorithm" but I'm uncertain which would work best for me.

Thanks

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