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Descriptor in English: Fractals
Descriptor in Spanish: Fractales
Descriptor in Portuguese: Fractais
Descriptor in French: Fractales
Entry term(s): Fractal
Tree number(s): E05.599.125
G17.290
Scope note: Patterns (real or mathematical) which look similar at different scales, for example the network of airways in the lung which shows similar branching patterns at progressively higher magnifications. Natural fractals are self-similar across a finite range of scales while mathematical fractals are the same across an infinite range. Many natural, including biological, structures are fractal (or fractal-like). Fractals are related to "chaos" (see NONLINEAR DYNAMICS) in that chaotic processes can produce fractal structures in nature, and appropriate representations of chaotic processes usually reveal self-similarity over time.
Annotation: patterns which look similar at different magnifications; used in math & theoret models
Allowable Qualifiers: HI history
History Note: 94
See also the descriptors: Nonlinear Dynamics MeSH
DeCS UI: 31461
Descriptor UI: D017709
Date Established: 1994/01/01
Date of Entry: 1992/12/28
Revision Date: 2008/07/08
Fractals - Preferred
Concept UI M0026775
Scope note Patterns (real or mathematical) which look similar at different scales, for example the network of airways in the lung which shows similar branching patterns at progressively higher magnifications. Natural fractals are self-similar across a finite range of scales while mathematical fractals are the same across an infinite range. Many natural, including biological, structures are fractal (or fractal-like). Fractals are related to "chaos" (see NONLINEAR DYNAMICS) in that chaotic processes can produce fractal structures in nature, and appropriate representations of chaotic processes usually reveal self-similarity over time.
Preferred term Fractals
Entry term(s) Fractal



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