Pickover stalk

Pickover stalk

Pickover stalks are certain kinds of details to be found empirically in the Mandelbrot set, in the study of fractal geometry. [Peter J. Bentley and David W. Corne (2001). "Creative Evolutionary Systems". Morgan Kaufmann. p. 354.] They are so named after the researcher Clifford Pickover, whose "epsilon cross" method was instrumental in their discovery.

Cliff Pickover hit on the novel concept of looking to see how closely the orbits of interior points come to the x and y axes. In these pictures, the closer that the point approaches, the higher up the color scale, with red denoting the closest approach. The logarithm of the distance is taken to accentuate the details. Linas Vepstas (1997). [http://linas.org/art-gallery/mandel/mandel.html "Interior Sketchbook Diary"] . Retrieved 8 July 2008.]

Biomorphs

Biomorphs are cross-shaped orbit traps, composed of Pickover Stalks, as suggested by Clifford Pickover. [Paul Nylander. [http://nylander.wordpress.com/2005/02/ Mandelbrot Set Biomorph] . feb 2005. Retrieved 8 July 2008.] End 1980s Pickover developed biological feedback organisms that are similar to Julia sets and the fractal Mandelbrot set. [Edward Rietman (1994). "Genesis Redux: Experiments Creating Artificial Life". Windcrest/McGraw-Hill. p. 154.] In summary, Pickover has described an algorithm that can be used for the creation of diverse and complicated forms resembling invertebrate organisms. The shapes are complicated and difficult to predict before actually experimenting with the mappings. He hoped these techniques will encourage you to explore further and discover new forms, by accident, that are on the edge of science and art. Clifford A. Pickover (1991) [http://www.ylem.org/Journal/1999NovDec-clr.pdf "Accident, Evolution, and Art"] . YLEN NEWSLETTER number. 12 volume 19 Nov/Dec. 1999.]

Pickover has developed an algorithm (which uses neither random perturbations nor natural laws) to create very complicated forms resembling invertebrate organisms. The iteration, or recursion, of mathematical transformations is used to generate biological morphologies. He called them "biomorphs." At the same time he coined "biomorph" for these patterns, the famous evolutionary biologist Richard Dawkins used the word to refer to his own set of biological shapes that were arrived at by a very different procedure. More rigorously, my "biomorphs" encompass the class of organismic mor phologies created by small changes to traditional conver gence tests in the field of "Julia set" theory.

Pickover's biomorphs show a self-similarity at different scales and illustrate a significant feature of feedback in dynamical systems. Real systems, such as human beings and mountain ranges, also show self-similarity at different scales. [Quantum Holistic Health Centre Limited (2005) [http://www.qxci.com.hk/news.asp?Screen=1440&SupMenuID=0&MenuID=1871&SelectedID=4&Langid=207 The theory of Trivector System] . Last modified on 9-7-2008. Retrieved 8 July 2008.] A 2-dimensional parametric 0L system can “looks” like Pickover's biomorphs. [Alfonso Ortega, Marina de la Cruz, and Manuel Alfonseca (2002). "Parametric 2-dimensional L systems and recursive fractal
]

References

Further reading

* Clifford Pickover (1987). "Biomorphs: Computer Displays of Biological Forms Generated from Mathematical Feedback Loops", In: "Computer Graphics Forum". v.5 n.4, p.313-316.
* Richard Dawkins (1995). "Blind Watchmaker Biomorphs". In: Clifford A. Pickover (ed.). "The Pattern Book: Fractals, Art, and Nature". World Scientific. pp.9-11.


Wikimedia Foundation. 2010.

Игры ⚽ Нужно сделать НИР?

Look at other dictionaries:

  • Stalk — can mean: * loosely, a plant stem, or any structure resembling a plant stem ** more precisely, in botany, the filament of a stamen, pedicel, peduncle, petiole, scape, caudicle or stipe (botany) ** in mycology, a stipe (mycology) is the stem or… …   Wikipedia

  • Mandelbrot set — Initial image of a Mandelbrot set zoom sequence with a continuously coloured environment …   Wikipedia

  • List of mathematics articles (P) — NOTOC P P = NP problem P adic analysis P adic number P adic order P compact group P group P² irreducible P Laplacian P matrix P rep P value P vector P y method Pacific Journal of Mathematics Package merge algorithm Packed storage matrix Packing… …   Wikipedia

  • Stalking (disambiguation) — Stalking (meaning following or hunting ) can refer to several different things:General* Stalking, a legal term for repeated harassment and/or obsessive following of a person * Hunting of animals, where stalking is a method of pursuing prey by… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”