from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any space whose elements are points, and between any two of which a non-negative real number can be defined as the distance between the points; an example is Euclidean space
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a set of points such that for every pair of points there is a nonnegative real number called their distance that is symmetric and satisfies the triangle inequality
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