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+Plotting the roots of polynomials with integer coefficients in the complex
+plane gives interesting pictures.
+At http://www.math.ucr.edu/home/baez/roots/, some interesting sets of
+polynomials are shown, and these are implemented in this program.
+It might, however, also contain code for other things.
+
+It is also a proof that one doesn't need 4 days of CPU time to compute a nice
+picture.