What is Strahler number?
[[File:Flussordnung (Strahler).svg|thumb|right|350px|{{center|Diagram and demonstration}}]] In [[mathematics]], the '''Strahler number''' or '''Horton–Strahler''' number of any [[tree]] [[shape]] [[measure]]s its [[complexity]].<ref>''Artificial Intelligence Research and Development'', eds. Cecilio Angulo; Lluís Godo (Amsterdam; Washington, DC: IOS Press, 2007.), p. 21</ref> It can be applied to any tree shape including real trees, [[lung]]s, [[human]] [[Interpersonal relationship|relationships]] and [[blood]] flow systems. These numbers allow these shapes to be handled in [[Programming language|computer programming languages]]. These [[number]]s were created to study the flow of [[liquid]]s by [[Robert E. Horton]] and [[Arthur Newell Strahler]]. == References == {{reflist}} [[Category:Graph theory]] {{math-stub}}