Tree

Bol

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. In mathematics, more specifically graph theory, a tree is a graph in which any two vertices are connected by exactly one simple path. In other words, any connected graph without cycles is a tree. A forest is a disjoint union of trees. The various kinds of trees used as data structures in computer science are not really trees in this sense, but rather, types of ordered directed trees; see below.A "graph" in this context refers to a collection of vertices or 'nodes' and a collection of edges that connect pairs of vertices. A graph may be undirected, meaning that there is no distinction between the two vertices associated with each edge, or its edges may be directed from one vertex to another; see graph (mathematics) for more detailed definitions and for other variations in the types of graphs that are commonly considered.

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Pagina's: 132, Paperback, Betascript Publishers