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 Author Topic: Interpolations in Buddhabrot  (Read 2101 times) Description: 0 Members and 1 Guest are viewing this topic.
woronoi
Alien

Posts: 32

 « on: June 17, 2016, 08:35:49 PM »

Is it possible to interpolate points in the trajectories of Buddhabrot?

I tried linear, bicubic and cosine interpolations but got strange results

 « Last Edit: June 17, 2016, 08:58:09 PM by woronoi » Logged
claude
Fractal Bachius

Posts: 563

 « Reply #1 on: June 17, 2016, 09:16:58 PM »

Is it possible to interpolate points in the trajectories of Buddhabrot?

iIf you draw a little square in the C-plane completely outside the Mandelbrot-set, the corresponding iterations in the Z-plane will be a little square jumping around, getting bigger and more distorted.  But if the square contains any points inside the Mandelbrot set, eventually the Z-plane square will surround the origin and get folded over itself at the next iteration.  So, in the former case you could interpolate across the square in the Z-plane, but because the Mandelbrot set boundary is so intricate, you need to pick smaller and smaller squares for it to work as you approach the boundary, so there's not much to gain from interpolation in the long run.
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ker2x
Fractal Molossus

Posts: 795

 « Reply #2 on: September 16, 2016, 01:32:44 PM »

i tried everything i could imagine a few years ago and couldn't get any nice result.
Did you find something since you opened this topic ?
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often times... there are other approaches which are kinda crappy until you put them in the context of parallel machines
(en) http://www.blog-gpgpu.com/ , (fr) http://www.keru.org/ ,
Chillheimer
Global Moderator
Fractal Schemer

Posts: 972

Just another fractal being floating by..

 « Reply #3 on: October 31, 2016, 09:31:20 PM »

maybe this is obvious to mathematicians specialists, but it was new to me so:
wow! I just realize that what you call "strange results" is actually exactly what is happening: we see the jumpin of trajectories between the different period bulbs as depicted here:
https://de.wikipedia.org/wiki/Mandelbrot-Menge#Galerie_der_Iteration
As your starting value escape it jumps from bulb to bulb, your interpolation shows exactly that.

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woronoi
Alien

Posts: 32

 « Reply #4 on: November 07, 2016, 09:40:52 AM »

Thanks, guys. That's exactly what I wanted to hear.
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