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graph

graph figure that shows relationships between quantities. The graph of a function y = f ( x ) is the set of points with coordinates [ x, f ( x )] in the xy -plane, when x and y are numbers. A similar definition can be given for functions involving more general kinds of variables. In mathematics interest is almost exclusively in line graphs and what these reveal about the functions they represent. Statistics makes extensive use of both line graphs and bar graphs, in which the lengths of the various bars show the quantities to be compared. Graph is also a mathematical term used in combinatorics to designate a geometric object consisting of vertices and edges (joining pairs of vertices). Such objects have been studied considerably in recent years because of the applicability to such diverse fields as computer networks, game theory, and social psychology.

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The Concise Oxford Dictionary of English Etymology | 1996 | | Â© The Concise Oxford Dictionary of English Etymology 1996, originally published by Oxford University Press 1996. (Hide copyright information) Copyright

graph XIX. orig. (chem.) short for GRAPHIC formula, in which lines are used to indicate the connections of elements; hence in math.

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T. F. HOAD. "graph." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. 17 Dec. 2009 <http://www.encyclopedia.com>.

T. F. HOAD. "graph." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. (December 17, 2009). http://www.encyclopedia.com/doc/1O27-graph.html

T. F. HOAD. "graph." The Concise Oxford Dictionary of English Etymology. 1996. Retrieved December 17, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O27-graph.html

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