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Julia and Mandelbrot Sets
David E. Joyce
August, 1994. Last updated May, 2003.
Function Iteration and Julia Sets
Gaston Julia studied the iteration of polynomials and rational functions in the early twentieth century. If f(x) is a function, various behaviors can arise when f is iterated. Let's take, for example, the function
f(x) = x2 – 0.75.
We will iterate this function when initially applied to an initial value of x, say x = a0. Let a1 denote the first iterate f(a0), let ...
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