Re: Do Data Models Need to built on a Mathematical Concept?
Date: 3 May 2003 12:28:11 -0700
Message-ID: <4b45d3ad.0305031128.6a32a3d9_at_posting.google.com>
>>>You need to learn is that a graph is equivalent to a binary
relation,
It depends on your definition of a graph vs my definition of a binary
relation. I define a binary relation as any two things that have
something in common.
According to http://people.hofstra.edu/geotrans/eng/ch2en/meth2en/ch2m1en.html
A graph is a symbolic representation of a network.
If you say that a graph can consist of as few as 2 nodes and one must
be able to go from one to the other AND vise versa, then they are the
same and you are correct.
>> A graph is not equivalent to a binary relation.
>> A graph is composed of binary relations.
> ...non-sense..
What is your definition of a graph?
> you consider any two pair of objects connected by a pointer
> or 2 pointers for that matter as a "relation".
I consider any two things/objects/entities/records "connected" by pointers/ids/etc to be an implementation of a binary relation. Do you agree or disagree? Received on Sat May 03 2003 - 21:28:11 CEST