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Summary
DescriptionLimb and hyperbolic Julia set for rotation number 13 over 34.png
English: Program Mandel by Wolf Jung - screen shot showing parameter plane ( left with wake /limb of Mandelbrot set) and dynamic plane ( right with Julia set and external rays) for combinatorial rotation number = 13/34
run program Mandel. Now you are on parameter plane with cursor in the point c=0. The function is complex quadratic polynomial
go to the bifurcation point on the boundary of period 1 component ( main cardioid) with combinatorial rotation number = 13/34 ( use main menu/Points/Bifurcate or key c) See function int mndlbrot::bifurcate from mndlbrot.cpp. Now you are in the root point c :
c = -0.392571548476155 +0.585781365897037 i period = 10000
Period = 10 000 means that period was not detected ( see function ???? )
zoom in into parameter plane around above root point c. After zooming in for a few times, you will see smooth bands instead of fractal trees. Then increase the maximal number of iterations with the key n. ( maximal Nmax=65 000) When you see large rectangular pixels, the limit of possible magnifications is reached.
draw the wake for combinatorial rotation number = 13/34 ( using key w or main Manu/Rays/Angles of the wake ) See function ???
The 13/34-wake of the main cardioid is
bounded by the parameter rays with the angles
4985538889/17179869183 or p0100101001001010010100100101001001 and
4985538890/17179869183 or p0100101001001010010100100101001010 .
Do you want to draw the rays and to shift c
to the center of the satellite component?
Copy angle of first ray , here 4985538889/17179869183.
Now you are in the center of period 34 component :
c = -0.392958628058490 +0.586546408285511 i period = 34
go to the dynamic plane ( F2 key, or click on right window )
increase the maximal number of iterations with the key n. ( maximal Nmax=65 000). Redrawind now take some time so please wait !
draw external rays landing on alfa fixed point = orbit portrait ( key O or Main Many/Rays/Orbit portrait, Paste here angle of first ray that land on the root point )
go to the alfa fixed point ( key x or Main Manu/Points/ find end enter 1 ) See function int mndlbrot::find from mndlbrot.cpp
Theory
See demo 4 page 8 from program Mandel. Try a simple example like 3/7 by hand.
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