Tree structure: Difference between revisions

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Revision as of 23:31, 19 September 2021

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[[File:Binary tree structure.svg|300px|thumb|A tree structure showing the possible hierarchical organization of an encyclopedia]]

[[File:ENC SYSTEME FIGURE.jpeg|300px|thumb|The original [[Encyclopédie]] used a tree diagram to show the way in which its subjects were ordered.]]

A '''tree structure''' or, '''tree diagram,''', or '''tree model''' is a way of representing the [[hierarchy|hierarchical]] nature of a [[structure]] in a graphical form. It is named a "tree structure" because the classic [[#Representing trees|representation]] resembles a [[tree]], even thoughalthough the chart is generally upside down compared to a biological tree, with the "stem" at the top and the "leaves" at the bottom.

A tree structure is conceptual, and appears in several forms. For a discussion of tree structures in specific fields, see [[Tree (data structure)]] for computer science:; insofar as it relates to graph theory, see [[tree (graph theory)]], or also [[tree (set theory)]]. Other related articles are listed below.

==Terminology and properties==