Classic Iterated Function Systems

Larry Riddle, Agnes Scott College
Table of Fractals

Sierpinski Gasket

Sierpinski Carpet

Sierpinski Pentagon

Heighway Dragon

Levy
Dragon

McWorter Pentigree

Pythagorean
Tree

Symmetric
Binary Trees

Koch Curve

Koch Snowflake

Larry Riddle
Department of Mathematics
Agnes Scott College

Fractals

One of the most common ways of generating fractals is as the fixed attractor set of an iterated function system. In these pages we investigate several of the classic iterated functions systems and their associated fractals. Each IFS consists of affine transformations involving rotations, scalings, and translations. For each example we give, where applicable,

If you want to experiment with drawing any of these fractals, or you want to draw your own, see my IFS Construction Kit (for Windows) which you may download and use for free. You can also view a gallery of images constructed with the IFS Construction Kit.

Read a Fractal Poem by Theoni Pappas.

[Note: This site uses Javascript. It also uses MathJax (which requires Javascript) to display mathematical expressions. There will be a slight delay as fonts are loaded and the expressions are typeset.]