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I wonder if Jim Muth would be willing to do a "Fractal of the Month"?
by Harold Lane 11 Aug '22

11 Aug '22

I wonder if Jim Muth would be willing to do a "Fractal of the Month"? I was really happy when he made this post (a year and a half ago) : ---------------- JIm Muth speaking. (FOTD) Is anyone still there? I'm alive and well and recovering from fractal burnout. by Jim Muth Or maybe I should be asking if I'm still subscribed I'm again finding unexpected images in unlikely formulas. Maybe I'll soon be thinking of getting the Fractal of the Day started again. Jim Muth --------------- I was able to do a search - just now -- for: Muth at: https://mailman.xmission.com/hyperkitty/list/fractint@mailman.xmission.com/l atest?count=200&page=1 to find his above post. Note: To view posts, I only click on (at the bottom of the page) : - the "page number digits" in the "Older" "Newer" area, (the server response is a little slow; be patient), and - "# of posts per page" choice, and - the Search window (at the top of page). I've avoided clicking on the dates at the left edge of the page after initial poor results when trying that. The transferred Fractint "/hyperkitty/"archive appears complete -- I was able to look at 20-year-old posts. I just tested -- you can still post to the [Fractint] list by emailing to: fractint(a)mailman.xmission.com and it appears that no account or login is necessary. My old, carefully saved, login was not recognized when I tried it quite some time ago. - Hal Lane ######################## # hallane(a)earthlink.net ########################

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Test post
by Harold Lane 11 Aug '22

11 Aug '22

This is only a test post. - Hal Lane ######################## # hallane(a)earthlink.net ########################

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Music fractals with Fractint
by Jonathan Osuch 16 Apr '22

16 Apr '22

Folks, I've been working on emulating the PC speaker with the SDL version and noticed that even though the documentation and prompts state that the orbit delay time is in milli-seconds, it is actually in tenths of a milli-second. Changing this will obviously throw off the timing of previously generated PAR files. I would prefer to not change the behaviour. Will need to change the docs. Any thoughts on this? Jonathan

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Re: Help! text file avalanche!
by Jonathan Osuch 12 Apr '22

12 Apr '22

Bill, > Although I was sort of responsible for the ORBITSAVE=sound feature, I > haven't used it for years - since I was using it to be transformed into > midi files in the late 90's or early 2000's. Anyway, I was checking today > to see if it (fractint v 20.04.14) operated as expected, using DOSBox. It > seems to work fine - once I was able to locate where the txt file was > saved. However, I can't remember how to turn off the ORBITSAVE=sound from > the command line - even restarting via <ins> doesn't clear it from writing > the txt file. I shut down DOSBox and restarted it and fractint, then > generated the default mandelbrot. No sound parameters were invoked at all, > but still the SOUNDxxx.txt file was produced...empty, but still being made. How did you turn orbitsave=sound on? Put it in sstools.ini? Otherwise, shutting down DOSBox and restarting should have worked. > Can you refresh my memory as to how to turn this off? Do we need a command > line such as ORBITSAVE=off? I'm really not keen on generating a new .txt > file every time I use fractint<g>. Well, that's ugly. Ideally, you should be able to press <G> to bring up the prompt screen and then enter orbitsave=no to turn it off. However, the original orbitsave function was to cause IFS and LORENZ types to output an acrospin file. The orbitsave=sound feature commandeered the variable and provided no way to turn it off. I will fix it in the SDL version. Jonathan

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Re: Music fractals with Fractint
by Harold Lane 10 Apr '22

10 Apr '22

Jonathan, My knee jerk response is to say to duplicate the Fractint's behavior in your SDL version, so existing files work correctly, but update the Fractint docs, as you suggested. And perhaps include a comment in the Fractint docs where the change/correction to them is made, adding something like, "The docs have always included an incorrect description, but now correctly describe Fractint's behavior. No changes to the behavior of Fractint have been made. Older files play correctly in both Fractint and FractSDL." (or something similar.) I'm a little tired right now, but wanted to reply -- is the above reasonable? Thanks for continuing your work on the SDL version of Fractint, Jonathan! - Hal Lane ######################## # hallane(a)earthlink.net ######################## -----Original Message----- From: Jonathan Osuch <osuchj(a)mediacombb.net> Sent: Sunday, April 10, 2022 8:57 AM To: Fractint and General Fractals Discussion <fractint(a)mailman.xmission.com> Subject: [Fractint] Music fractals with Fractint Folks, I've been working on emulating the PC speaker with the SDL version and noticed that even though the documentation and prompts state that the orbit delay time is in milli-seconds, it is actually in tenths of a milli-second. Changing this will obviously throw off the timing of previously generated PAR files. I would prefer to not change the behaviour. Will need to change the docs. Any thoughts on this? Jonathan _______________________________________________ Fractint mailing list -- fractint(a)mailman.xmission.com To unsubscribe send an email to fractint-leave(a)mailman.xmission.com

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Fracton 3D
by Mike Frazier 16 Dec '21

16 Dec '21

There is a new version of Fracton that supports 3D fractals. It also still supports FractInt parameter files. A new triplex compiler makes entering equations for 3D fractals as simple and concise as it was for 2D. Fracton then makes a 3D model with triangles. You compose the scene by moving the camera and adjusting lighting in real time. Once you are satisfied with the scene, Fracton can make a high quality ray traced image or a movie. Fracton is free and is available on the Mac App Store. https://apps.apple.com/app/id1589677006 -- Mike Frazier www.fracton.org

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3 and 4 dimensional Julia/Mandebrot sets using quaternions
by David W. Jones 16 Dec '21

16 Dec '21

From: Quaternion - Wikipedia https://en.m.wikipedia.org/wiki/Quaternion#Functions_of_a_quaternion_variab… Image: https://en.m.wikipedia.org/wiki/File:Quaternion_Julia_x%3D-0,75_y%3D-0,14.j… Image is a cross-section of a 4-dimensional fractal. --- David W. Jones gnome(a)hawaii.rr.com authenticity, honesty, community http://dancingtreefrog.com Sent from my Android device with F/LOSS K-9 Mail.

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Complex Collatz Fractal
by Mike Frazier 14 Dec '21

14 Dec '21

Here is another version of the Collatz fractal using complex numbers. I found some images on this link and a simpler formula than the one on Wikipedia (both give the same image though): https://yozh.org/2012/01/12/the_collatz_fractal/ Here is the PAR: Collatz2 { ; Exported from Fracton. reset=2004 type=formula formulafile=fracton.frm formulaname=F_20211202_1537 passes=1 float=y center-mag=0/0/0.3809523857142857/1/0/0 params=0/0/0/0/0/0/0/0/0/0 maxiter=1000 inside=1 proximity=0 colors=000FLQQvgz`6`KP1vWH1zpVDeg86Zw`_w4hpK7pGHze\ pdkSSP8ZQj5HMDPjRg`CG6RtBZ8Re_jOCrWSUAGRKbetEe`DdF\ NJPhm_f9XSn`ehRV5g1WdcfHO8ryINGfDR1hE3KpG`ZfoqpnKT\ gXD_0ys7ZP7EnbS2ssyO`uCz4UuAhCWvvB0NGZiXnWL3rhl`_p\ PGVG5Jn0HGN6IIuCEqxRMQSCrHziJSMy08YJZ_P_tu94idZBBY\ 9`5LYhHYmTYxL`T7k79IqpR9PhG3aZNgK`AHRbjerpMRLhZ4gH\ GTNl57UigYV_NE_affhn7joo05yIDWQxEVQfnGkqH5WJxmSLeS\ GVqzJUC9c3VfVyEGlC89cyabbd2h27zwDE5sywwkQ_dX2cN5TH\ EaYzfzaLb2wnTxxtZ5VRh1HFzfcrbkiEwdrvs30wtYJqjkBgeR\ YFMzpH2XRBqWAdkU5q1a8pAciLP2n9U0ni3gZjR63cp2YXjXcu\ FN2GtWNpuz08b51LU6dWv9esETy5fPzO81_Ef0sZaDIoT7vba6\ 3JT8uBZPmwvucYcFKbGfUHhlLkvlFAp`Xd5E2KHsb3Z76m5ad9\ WonMODBkdxjdyNYtzIfgfQKdDErbFehLRN7gcV30pjDqCFOGXs\ 7J1x2KCeVZCvNXDz8oN3VzOQQa3v4jAJ2dPuB0U4XFVrJv954o\ PlI_oSCoY7ODXVhrm8RvcIYP2rwYdhgNQyWtKXMVzRuLNAtf5w\ heuN6l6JUDLdJeyUSRdZjg9Uy } frm:F_20211202_1537 { ; Collatz fractal z=pixel: ; Wikipedia formula commented out but gives same result ;cz = cos(z * pi / 2); ;sz = sin(z * pi / 2); ;z = (z / 2) * cz * cz + sz * sz * (3 * z + 1); z=(2+7*z-(2+5*z)*cos(pi*z))/4, |z|<100 } -- Mike Frazier www.fracton.org

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YouTube video: "How Imaginary Numbers Were Invented":
by Harold Lane 13 Dec '21

13 Dec '21

I just "chanced across" this YouTube video (it was "suggested" to me) -- meaning YouTube owner, Google, "knows" of my interest in fractals and imaginary numbers: "How Imaginary Numbers Were Invented": I enjoyed the clear steps shown in the video -- traveling thru historical mathematics -- that led to these special numbers that we enjoy the visual results of so much. I have a storage shed where I keep my imaginary numbers, but I don't ever let anyone see them... https://www.youtube.com/watch?v=cUzklzVXJwo - Hal Lane ######################## # hallane(a)earthlink.net ########################

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Possible to make a Collatz fractal in Fractint?
by David W. Jones 02 Dec '21

02 Dec '21

Just wondering. https://en.m.wikipedia.org/wiki/Collatz_conjecture --- David W. Jones gnome(a)hawaii.rr.com authenticity, honesty, community http://dancingtreefrog.com Sent from my Android device with F/LOSS K-9 Mail.

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