Vertex (geometry)

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Revision as of 04:09, 31 October 2007 by imported>Aleksander Stos (expand + old fashioned categs.)
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In geometry, a vertex (plural vertices) is a special point located at the intersection of two or more lines, generally in an angle, polygon or polyhedron. Vertices appear also in graph theory as basic elements of a graph. In this context vertices are often called nodes.