A complete graph is a network in which every pair of vertices is connected by an edge.
A complete graph is a graph in which each pair of graph vertices is connected by an edge. The complete graph with n graph vertices is denoted K_n and has (n 2) = n(n - 1)/2 (the triangular numbers) undirected edges, where (n k) is a binomial coefficient. In older literature, complete graphs are sometimes called universal graphs. The complete graph K_n is also the complete n-partite graph K_(n×1) = K_(1, ..., 1_︸_n).
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