Been playing around with some more maths. This app plots attractors of the Logistic Equation (with a bit of symmetry thrown in for good measure). The maths is straight forward and explained in the excellent book Symmetry in Chaos: A Search for Pattern in Mathematics, Art and Nature by Michael Field and Martin. Keys a-z have preset values for drawing images from the book. I think you'll need a fairly powerful PC to run the app.
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