Pi
Robert P. Munafo, 2002 May 7.
The constant, 3.1415926535897932... It shows up in a few places in the Mandelbrot set, perhaps most surprising is its relation to the dwell bands in cusps, (this is described in the entry R2.C(1/2)).
From the Mandelbrot Set Glossary and Encyclopedia, by Robert Munafo. Mu-ency index
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