Patterns from a Simple Math Function I

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Interesting patterns can be found by composing some math functions with one of three real-valued functions and plotting the result.
Contributed by: Daniel de Souza Carvalho (March 2011)
Open content licensed under CC BY-NC-SA
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Reference: C. Getz and J. Helmstedt, Graphics with Mathematica: Fractals, Julia Sets, Patterns and Natural Forms, Amsterdam: Elsevier, 2004 p. 76.
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"Patterns from a Simple Math Function I"
http://demonstrations.wolfram.com/PatternsFromASimpleMathFunctionI/
Wolfram Demonstrations Project
Published: March 7 2011