Internal and external rays of Mandelbrot set

internal ray of main cardioid ( period 1 hyperbolic component) of angle 1/3: 
starts from center of main cardioid c=0
ends in the root point of period 3 component
which is the landing point of external rays of angles 1/7 and 2/7

images made with Mandel - program for DOS by Wolf Jung, version 3.5
Probably mathemathically most advanced program for drawing mandel / Fatou / Julia sets

1< enter > ; q = 2 ; e = 0/1 < enter > ; F9 ; < end >
changed to grayscale,increased color depth to 24 bit, resized and converted to jpg using IrfanView
internal ray is made with my program on the bitmap created in Jung program

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Autor: Adam Majewski adammaj1-at-o2-dot--pl

Feel free to e-mail me. (:-))