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Fractals. Laura Wierschke Libby Welton. History of Fractals: Julia Sets. Gaston Julia (1873-1978): French mathematician who worked with fractals Made fractals that were named after him called the Julia Sets Two types Connected sets Cantor sets Had disadvantage to Mandelbrot
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Fractals Laura Wierschke Libby Welton
History of Fractals: Julia Sets • Gaston Julia (1873-1978): French mathematician who worked with fractals • Made fractals that were named after him called the Julia Sets • Two types • Connected sets • Cantor sets • Had disadvantage to Mandelbrot • No computers
Benoit Mandelbrot (1924-present): Polish mathematician who studied fractals Able to use computers Found a simpler equation to the Julia sets that included all Julia Sets These sets called Mandelbrot sets Julian and Mandelbrot worked with non-Euclidean geometry Made fractals that could easily represent things like snowflakes and coastlines- something not easily done with Euclidean geometry Mandelbrot Sets
Self-similar figure that repeats over and over in infinite iterations Iteration: Every time the pattern is repeated Axiom: Beginning of fractal Recursion: the rule at which the fractal is repeated Magnifying a fractal will give a smaller, but similar fractal Graphed on complex number plane X-axis is real numbers Y-axis is complex numbers What is a Fractal?
Snowflake Fern Maple Leaf Coastlines Silhouette of tree FRACTALS IN NATURE Iterated Function System Fractals (IFS) Fern Koch’s Snowflake Maple Leaf
Works Cited • Apollonian Gasket. May 31, 2009. Mathworld Team. June 2, 2009. mathworld.wolfram.com/ApollonianGasket.html • Chalk River Graphics. Castle One. 2008. June 2, 2009 http://www.fractalpalace.com/Details-CK1.php • Chalk River Graphics. Centipedius Kleinianus I. 2008. June 2, 2009 http://www.fractalpalace.com/Details-CK1.php • Chalk River Graphics. Eggs Hyperbolic .2008. June 2, 2009. http://www.fractalpalace.com/Details-EH.php • Chalk River Graphics. Hyperbolic Tessallation I. 2008. June 2, 2009. http://www.fractalpalace.com/Details-HT1.php • Chalk River Graphics. Pizza Bug .2008. June 2, 2009. http://www.fractalpalace.com/Details-EH.php • Circle and Sphere Inversion Fractals. June 2, 2009 http://www.hiddendimension.com/CircleInversionFractals.html • “Convergant Fractals.” Mathematics of Convergent Fractals . June 2, 2009 http://www.hiddendimension.com/Convergent_Fractals_Main.html • "Fractal Mathematics Main page." Hidden Dimension Galleries. 03 June 2009 <http://www.hiddendimension.com/Mathematics_Main.html>. • "Fractals: An Introductory Lesson." Arcytech Main Page. 03 June 2009 <http://www.arcytech.org/java/fractals/>. • “JuliaBrot, Quaternion and Hypercomplex Fractals.”Mathematics of JuliaBrot, Quaternion and Hypercomplex Fractals. June 2, 2009http://www.hiddendimension.com/JuliaBrot_Fractals_Main.html • “Kleinian Group.” Kleinian Group Fractals. June 2, 2009. http://www.hiddendimension.com/KleinianGroup_Fractals_Main.html • L-System Fractals. August 27, 2008. Soltutorial. June 2, 2009. sol.gfxile.net/lsys.html • McWorter, William. Fractint L-System True Fractals. January 1997. June 2, 2009. http://spanky.triumf.ca/www/FractInt/LSYS/truefractal.html • Morrison, Andy. June 2, 2009 http://www.dannyburk.com/red_maple_leaf_4x5.htm • Seirpinski. Seirpinski’s Triangle. November 27, 1995. Chaos. June 2, 2009. www.zeuscat.com/andrew/chaos/sierpinski.html • Strange Attractors. 2009. Fractal Science Kit. June 2, 2009 www.fractalsciencekit.com/types/orbital.htm • Thelin, Johan. Attracting Fractals. June 2, 2009http://www.thelins.se/johan/2008/07/attracting-fractals.html • Vepstas, Linas . The Mandelbrot Set as a Modular Form. 30 May 2005. June 2, 2009linas.org/math/dedekind/dedekind.html