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In mathematics, and, in particular, in graph theory, a rooted graph is a graph in which one vertex has been distinguished as the root. [ 1 ] [ 2 ] Both directed and undirected versions of rooted graphs have been studied, and there are also variant definitions that allow multiple roots.
A graph is d-regular when all of its vertices have degree d. A regular graph is a graph that is d-regular for some d. regular tournament A regular tournament is a tournament where in-degree equals out-degree for all vertices. reverse See transpose. root 1. A designated vertex in a graph, particularly in directed trees and rooted graphs. 2.
Meaning Origin language and etymology Example(s) quadr(i)-four Latin quattuor: quadriceps: radi-radiation Latin radiō, I radiate, emit beams; from radius, ray of light, spoke of a wheel radiowave: radic-referring to the beginning, or the root, of a structure, usually a nerve or a vein Latin rādīx, root radiculopathy: re-again, back Latin re ...
The following is an alphabetical list of Greek and Latin roots, stems, and prefixes commonly used in the English language from P to Z. See also the lists from A to G and from H to O.
Cacography: poor handwriting [see graph] Centr Center Centerpiece: an ornamental object used in a central position, esp. on the center of a dining-room table Chrom Color: Polychrome: having many colors [see poly] Chron Time: Chronological: being in time order Cycl Circle
A graph with three vertices and three edges. A graph (sometimes called an undirected graph to distinguish it from a directed graph, or a simple graph to distinguish it from a multigraph) [4] [5] is a pair G = (V, E), where V is a set whose elements are called vertices (singular: vertex), and E is a set of unordered pairs {,} of vertices, whose elements are called edges (sometimes links or lines).
The English language uses many Greek and Latin roots, stems, and prefixes.These roots are listed alphabetically on three pages: Greek and Latin roots from A to G; Greek and Latin roots from H to O
Root Meaning in English Origin language Etymology (root origin) English examples ob-, o-, oc-, of-, og-, op-, os-[1]against: Latin: ob: obduracy, obdurate, obduration ...