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From: owner-fractint-digest@lists.xmission.com (fractint-digest)
To: fractint-digest@lists.xmission.com
Subject: fractint-digest V1 #124
Reply-To: fractint-digest
Sender: owner-fractint-digest@lists.xmission.com
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Precedence: bulk
fractint-digest Saturday, March 7 1998 Volume 01 : Number 124
----------------------------------------------------------------------
Date: Fri, 6 Mar 1998 17:27:08 EST
From: Nature102 <Nature102@aol.com>
Subject: Re: (fractint) Out of my depth
In a message dated 98-03-06 16:50:06 EST, elmont@cdsnet.net writes:
<< Joined the listserver about ten days ago and have been reading all
the messages that are being sent out. WOW!!! Am I over my head. >>
Trust me, you're not the only one. :-P
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------------------------------
Date: Fri, 6 Mar 1998 17:33:06 EST
From: HWeber8606 <HWeber8606@aol.com>
Subject: Re: (fractint) February's pars
Hi Les,
I have the same problem as Bob. My AOL-browser refuse to d/l your 02.98 par-
collection and your frm-file. What have you done in an other way than
before?Please post it to my compuserve adress. Thanks.
Cheers --Jo--
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------------------------------
Date: Fri, 06 Mar 1998 14:54:48 PST
From: NOEL_GIFFIN <noel@triumf.ca>
Subject: Re: (fractint) February's pars
HWeber8606 <HWeber8606@aol.com> wrote:
> Hi Les,
>
> I have the same problem as Bob. My AOL-browser refuse to d/l your 02.98
> par-
> collection and your frm-file. What have you done in an other way than
> before?Please post it to my compuserve adress. Thanks.
I've loaded the available parameter collections from Les's webpage
onto the Spanky database. You may (or may not) find that you can
download from there if you have problems with Les's site. I think
Les's webpage should be everyones first choice for downloading these
formulae. He is after all, the one doing all the work, and his site
will always be more up-to-date.
I will keep them there if this is alright with Les and as
long as everyone acknowledges him as the person who has done the
great job compiling them.
You can find them for now at:
http://spanky.triumf.ca/pub/fractals/params/
and put the formula file in
http://spanky.triumf.ca/pub/fractals/formulas/FML_FRM.ZIP
Cheers,
Noel Giffin
P.S.
Let me know if this is okay with you Les.
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------------------------------
Date: Fri, 6 Mar 1998 16:23:30 -0700
From: Ray Montgomery <elmont@cdsnet.net>
Subject: (fractint) Continuation
But not long, I promise. (I feel that I almost know most of you who
are posting because I downloaded so many of the 'Gallery'-combi-bios-&-images.)
The final 'gist' of my posting is, - it takes a special type of
person who can put up with teaching a 'kindergartner' of 'first-grader' -
"Shoe?" "Yes, you're right, shoe!" But if anybody out there has the
patience to put up with it, I'd like to start asking some very basic and
fundamental questions. I promise they will be spaced appropriately far
apart. But, I would beg anyone who would be willing to answer to phrase the
answer so that an 'Old-man' kindergartner' would be able to understand.
There! I've done it. Dared to step into the room with the big-boys!
Mercy! Mercy!! Mercy!!! Bob Carr has been gracious enough to reply
already and I am already so grateful.
Thanks
Ray Montgomery
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------------------------------
Date: Fri, 6 Mar 1998 19:54:44 -0500
From: "Peter Gavin" <pgavin@mindspring.com>
Subject: Re: (fractint) Fractais in Brazil
What about English to English? :)
[snip]
>Now if they just had C++ to English, Advanced Math to English, or even
>better:
>English to Fractint frm, English to Fractint par, English to Fractint map
Pete
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------------------------------
Date: Fri, 6 Mar 1998 19:56:39 -0500
From: "Peter Gavin" <pgavin@mindspring.com>
Subject: Re: (fractint) Fractais in ????
Sounds like something from Star Wars.... hmmm... :)
- -----Original Message-----
From: Jason Hine <tumnus@together.net>
To: fractint@lists.xmission.com <fractint@lists.xmission.com>
Date: Thursday, March 05, 1998 6:56 AM
Subject: Re: (fractint) Fractais in ????
>Gedeon asks:
>>Kivancsi vagyok, hogy vannak e magyarok?
>
>Hmmm... from somewhere on the greater Asian continent? This is definitely
>tougher than Spanish to guess at!
>Jason
>
>
>-
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------------------------------
Date: Fri, 6 Mar 1998 20:09:34 -0500
From: "Peter Gavin" <pgavin@mindspring.com>
Subject: Re: (fractint) Fractint as prototype society
><< - what's happening to Fractint now? Has it reached perfection? :) >>
>
> Nope. Not until it can calculate images at zoom levels of 10^(10^12) in
five
>seconds and generate realtime 3-D walkthroughs of fractal worlds. :-P
>
On an 8086 with only 1K of Ram and no HD, one 5.25" floppy drive, and a
monochrome monitor.
Oh, yeah, in 32-bit True color.
Pete
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------------------------------
Date: Fri, 6 Mar 1998 19:15:50 -0600 (CST)
From: pjcarlsn@ix.netcom.com (Paul and/or Joyce Carlson)
Subject: (fractint) Texture and Inflation Formula
This formula and pars explore four areas of the classic
Mandelbrot set using a rendering method that creates, in
pars mndatm01, 03 and 04, images with a nice "texture"
that almost make you want to run your fingers over them.
Par mndatm02 creates an image that looks inflated (makes
you want to stick a pin in it).
Paul Carlson
frm:Mand_Atan_Mset {; Copyright (c) Paul W. Carlson, 1998
w = z = iter = range_num = bailout = 0
c = pixel
num_ranges = real(p2)
colors_in_range = imag(p2)
:
prev_w = w
w = w * w + c
IF (abs(real(w)) > p1)
bailout = 1
angle = abs(atan((imag(w)-imag(prev_w))/(real(w)-real(prev_w))))
index = 2 * colors_in_range * angle / pi
z = index + range_num * colors_in_range + 1
ENDIF
range_num = range_num + 1
IF (range_num == num_ranges)
range_num = 0
ENDIF
iter = iter + 1
z = z - iter
bailout == 0
}
mndatm01 {; Copyright (c) Paul W. Carlson, 1998
; Nice texture.
reset=1960 type=formula formulafile=mndatan.frm
formulaname=Mand_Atan_Mset passes=t
center-mag=-0.81638668446488240/+0.19987647824278850/306\
89.28/1/-170 params=1.5/0/2/125
float=y maxiter=2000 inside=253 outside=summ
colors=000zqa<123>WRFz88<123>O00000<3>000
}
mndatm02 {; Copyright (c) Paul W. Carlson, 1998
; The "inflated" look.
reset=1960 type=formula formulafile=mndatan.frm
formulaname=Mand_Atan_Mset passes=t
center-mag=+0.30078202224390480/+0.02039060482684493/2638\
81.6/1/3.199 params=0.8/0/2/125
float=y maxiter=2000 inside=253 outside=summ
colors=000zqa<123>WRFz88<123>O00000<3>000
}
mndatm03 { ; Copyright (c) Paul W. Carlson, 1998
; Another nice texture.
reset=1960 type=formula formulafile=mndatan.frm
formulaname=Mand_Atan_Mset passes=t
center-mag=-1.27902461721017400/+0.07031146780659604/2318\
6.32/1/156.5 params=1.5/0/2/125
float=y maxiter=2000 inside=253 outside=summ
colors=000zqa<123>WRFz88<123>O00000<3>000
}
mndatm04 { ; Copyright (c) Paul W. Carlson, 1998
; Still another nice texture.
reset=1960 type=formula formulafile=mndatan.frm
formulaname=Mand_Atan_Mset passes=t
corners=-1.429323736733/-1.4293206462961/0.001621210035598\
3/0.001622949268712/-1.4293234590076/0.0016208397351079
params=2/0/2/125 float=y maxiter=2000 inside=253 outside=summ
colors=000zqa<123>WRFz88<123>O00000<3>000
}
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------------------------------
Date: Fri, 6 Mar 1998 20:17:00 EST
From: Nature102 <Nature102@aol.com>
Subject: Re: (fractint) Fractint as prototype society
In a message dated 98-03-06 20:11:43 EST, pgavin@mindspring.com writes:
<< ><< - what's happening to Fractint now? Has it reached perfection? :) >>
>
> Nope. Not until it can calculate images at zoom levels of 10^(10^12) in
five
>seconds and generate realtime 3-D walkthroughs of fractal worlds. :-P
>
On an 8086 with only 1K of Ram and no HD, one 5.25" floppy drive, and a
monochrome monitor.
Oh, yeah, in 32-bit True color. >>
And it has to be able to do it in a Win95/NT DOS box! :-P ::Looks at the
Stone Soup Group:: Well, guys, get on it! :-P
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------------------------------
Date: Sat, 07 Mar 1998 12:53:33 +1100
From: Andrew Plukss <A.Plukss@bom.gov.au>
Subject: Re: (fractint) Fractais in ????
Peter Gavin wrote:
>
> Sounds like something from Star Wars.... hmmm... :)
>
> -----Original Message-----
> From: Jason Hine <tumnus@together.net>
> To: fractint@lists.xmission.com <fractint@lists.xmission.com>
> Date: Thursday, March 05, 1998 6:56 AM
The fractint newgroup generates a lot of mail and threads such this, in
my opinion, are just unnecessary clutter. Please have consideration for
those with limited email access.
Andrew Plukss
> Subject: Re: (fractint) Fractais in ????
>
> >Gedeon asks:
> >>Kivancsi vagyok, hogy vannak e magyarok?
> >
> >Hmmm... from somewhere on the greater Asian continent? This is definitely
> >tougher than Spanish to guess at!
> >Jason
> >
> >
> >-
>
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------------------------------
Date: Fri, 06 Mar 1998 20:10:55 -0600
From: Carolyn <car34slmo@worldnet.att.net>
Subject: (fractint) Out of my depth
These two messages have been such an encouragement to me. I thought I
was out here all alone just reading and never understanding but enjoying
the results of other's work.
Nature102 wrote:
> In a message dated 98-03-06 16:50:06 EST, elmont@cdsnet.net writes:
>
> << Joined the listserver about ten days ago and have been reading all
> the messages that are being sent out. WOW!!! Am I over my head. >>
>
> Trust me, you're not the only one. :-P
>
- --
Carolyn
car34slmo@worldnet.att.net
Jesus is the Light of the world, the Bread of life and the Salvation of
your soul.
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------------------------------
Date: Fri, 06 Mar 1998 18:42:57 -0800
From: Wizzle <wizzle@cci-internet.com>
Subject: Re: (fractint) Out of my depth
Carolyn...
Welcome!!! Many of the things posted to the list I don't have a clue about
either. I'm part of the "pretty picture" contingent. But I do have a web
page with lots of VERY basic information. The info that got me going was
Linda Allison's lessons....you will find the link at
http://wizzle.simplenet.com/fractals/fractalintro.htm
I'm going to re-organize my hints and lessons, including a section for the
q&a postings from this list, this week end (she says...sure!!! maybe). I
think Fractint is wonderfully documented, but examples helped me at first
soooooo much.....and that is where a web page can fill a gap. Besides, we
all learn in different ways.
Anyone else with lessons type pages posted...please email me the url
wizzle@cci-internet.com
ciao
Angela aka wizzle
At 08:10 PM 3/6/98 -0600, you wrote:
> These two messages have been such an encouragement to me. I thought I
>was out here all alone just reading and never understanding but enjoying
>the results of other's work.
>
>
>Nature102 wrote:
>
>> In a message dated 98-03-06 16:50:06 EST, elmont@cdsnet.net writes:
>>
>> << Joined the listserver about ten days ago and have been reading all
>> the messages that are being sent out. WOW!!! Am I over my head. >>
>>
>> Trust me, you're not the only one. :-P
>>
>
>--
>Carolyn
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------------------------------
Date: Fri, 06 Mar 1998 19:40:11 -0800
From: Wizzle <wizzle@cci-internet.com>
Subject: Re: (fractint) gravijul-a1
>comment { 3/6/1998 Mark "Bud" Christenson
>
>Okay, here's my first effort.
>
Yup yup...works great!!! Another gravijul winner. In thanks, I've modified
your sil&gld map in the second par by replacing the red with teal.....
wizgravi1 { ; wizzle from a Bud Christensen formula 3/6/98
reset=1960 type=formula formulafile=*.frm
formulaname=gravijul-a1 function=asin/atanh/atan
center-mag=0.0103628/0.0154305/0.2575853/1/-19.999
params=1.1/0/0/0.93/0.966/2.2 float=y inside=111 outside=real
decomp=256
colors=000000000<5>D67F79H8AKACLBD<32>xxkzzmyyl<25>KC2IA0G90<5>000<5>336\
000437<21>JGTKHUKHT<8>ECKDBICAHBAGB9FA8E<12>111000000000<3>000<2>A05D06F\
27<5>REITGKVILWJM<12>tggviixkkzmmyllwjj<22>I2AG08C06<2>000<2>000000123<1\
8>SpwUszTqw<16>234000000<2>000 cyclerange=0/255
}
wizgravi2 { ; wizzle 3/6/98 from Bud's new formula
; and a gift of teal for bud's fav map too!! budteal.map
reset=1960 type=formula formulafile=*.frm
formulaname=gravijul-a1 function=sqr/atanh/asinh
center-mag=0.0103628/0.0154305/0.5488324/1.3333/-19.999
params=1.1/0/0/0.93/0.966/2.2 float=y inside=111 outside=real
decomp=256 viewwindows=1/1/yes/0/0
colors=MJB<20>zsX<31>000<3>800<2>2770AA0CC<5>0PP0RR0SS<14>0rr<13>0``0__0\
YY0WW<10>0CC0AA077044000<8>FFFHHHJJJLLLMMMOOO<17>sss<30>222000012<30>0kz\
<30>022000221<8>KIA cyclerange=0/255
}
Hint for anyone else....bud's map will look great with endless variations
if you leave the silver and gold as is and fiddle with the other two
colors....try purple and green....magenta....oooooooorange......browns...go
for it!!! Just remember to find the darkest versions of the other colors
and replace them....then find the lightest versions and replace
them.......use the old = and voila!!! new map. Bud's map has black (r0,
g0, b0) in strategic places.....don't cross those boundaries.
Have fun!!
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------------------------------
Date: Fri, 6 Mar 1998 22:35:54 -0700
From: Ray Montgomery <elmont@cdsnet.net>
Subject: (fractint) .par & .frm files
Hi Linda
Just left your Gumbycat page and down-loaded the .par and .frm
instructions. Had to. Otherwise too much for old brain to remember. It
was an enormous help, but brought two questions to mind. (Far more than
two, but two is all that I can handle right now.) In order to save the two
files, do I have to type them all into a directory - or is there a way to
use the existing typed paragraphs? Second question; can I down-load the
color-map instructions - and if so will the B.G. black come out all black,
or will there be some kind of transformation that I know naught of?
Enormous help, in that all of a sudden I realize just what the two
phrases refer to, and ALMOST how to use them.
Thanks a lot. A whole bunch of fractals worth.
Ray Montgomery
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------------------------------
Date: Sat, 7 Mar 1998 01:25:28 -0500
From: "Philip DiGiorgi" <phild@iinc.com>
Subject: (fractint) Gravijul Mania
My first post to the list, and I've really been enjoying all the great
images you folks are posting.
And here's just what everyone needs..., yet another variation of the
Gravijul formula. Will post some more pars in another message.
--Phil D.
grav2u01 { ; t= 0:01:38.16 (c) P. DiGiorgi - Mar '98
; Generated on a K6-266 at 1600x1200
reset=1960 type=formula formulafile=grav.frm formulaname=gravijul_2u
function=cabs/acosh/abs/log passes=1
center-mag=0/4.44089e-016/0.3854591/1/180 params=0.6/0.9/1/0/0.15/1
float=y maxiter=300 inside=0 decomp=256 periodicity=0
colors=B36<10>UAHWBIYDK<24>zzz<21>000801<22>801801A44<12>Umc<5>zzz<6>Yof\
UmcSi`<10>A55812812<9>634634533<14>00000S<21>77u<7>zzz<15>55f<12>22L11K1\
1I00G00G10G000<8>000000100201<2>412513513513<13>513613824A25
cyclerange=0/255
}
grav2u02 { ; t= 0:03:10.04 (c) P. DiGiorgi - Mar '98
; Generated on a K6-266 at 1600x1200
reset=1960 type=formula formulafile=grav.frm formulaname=gravijul_2u
function=cabs/acosh/abs/log passes=1
center-mag=0/4.44089e-016/0.3854591/1/180 params=0.5/0.8/1/0/0.15/1
float=y maxiter=300 inside=0 decomp=256 periodicity=0
colors=OOO<5>000<29>000<3>C0GG0LI0P<6>e2rh2vi8r<5>nfV<3>000<21>g8D<6>zVF\
<7>jBEg8De8D<3>V69S59R59Q59P58<8>000754000EB8<6>zpa<7>A66000<5>000000200\
<20>hCEkDFmGF<4>zVF<5>kDEhAEd9D<10>000<2>000000202<20>j2y<18>000<7>zzzzz\
zzzz<8>SSS cyclerange=0/255
}
grav2u03 { ; t= 0:05:05.23 (c) P. DiGiorgi - Mar '98
; Generated on a K6-266 at 1600x1200
reset=1960 type=formula formulafile=grav.frm formulaname=gravijul_2u
function=cabs/atanh/tan/atanh passes=1
center-mag=0.345663/0.886304/2.898551/1/-90
params=0.95/0/0.03/0/0.03/2.5 float=y maxiter=300 inside=0
decomp=256 periodicity=0
colors=000823412000<2>000000202<20>j2y<18>000<7>zzzzzzzzz<15>000<29>000<\
19>zpa<4>000<21>g8D<6>zVF<7>jBEg8De8D<3>V69S59R59Q59P58<8>000<8>zpa<7>A6\
6000<5>000000200<20>hCEkDFmGF<4>zVF<5>kDEhAEd9D<7>C34
}
grav2u04 { ; t= 0:02:14.57 (c) P. DiGiorgi - Mar '98
; Generated on a K6-266 at 1600x1200
reset=1960 type=formula formulafile=grav.frm formulaname=gravijul_2u
function=exp/recip/abs/acosh passes=1 center-mag=0/0/0.6945411
params=0/1.5/-2.8/0.05/-0.077/1.9 float=y maxiter=300 inside=0
decomp=256
colors=B36CCi99g55f<10>22O22N22L11K11I00G00G10G000<8>000000100201<2>4125\
13513513<13>513613824A25D47<9>UAHWBIYDK<24>zzz<21>000801<22>801801A44<12\
>Umc<5>zzz<6>YofUmcSi`<10>A55812812<9>634634533<14>00000S<21>77u<7>zzz<6\
>bbqZZpVVoRRnNNmKKkGGj
}
grav2u05 { ; t= 0:02:13.41 (c) P. DiGiorgi - Mar '98
; Generated on a K6-266 at 1600x1200
reset=1960 type=formula formulafile=grav.frm
formulaname=gravijul_2u function=cabs/atanh/atanh/atanh passes=1
center-mag=-9.99201e-016/-8.88178e-016/1.397102/1/-90
params=0.91/0/0.05/0/0.03/2.5 float=y maxiter=300 inside=0
decomp=256 periodicity=0
colors=000B60740310001<3>00P00V00Z11c11h<3>11v12w12y<2>12y12x11v<2>11m11\
i11d00_00W<2>00E00700200B<2>I8COBCUDCZFDcIDhKDmLEpNEsOEvQExQFyRFzRFzRFyR\
FxQFvQE<2>mMEiKDdID<3>J9CD6B63B11B332<3>PHKVLPZOScSWgW_k_bobeqfgtjivmkwq\
lwtlxtlwqlvmktjirfhobel_c<2>_OTWLQQHL<3>432<31>000<15>zWF<15>000<12>`Fw<\
6>D5L000<3>000300<11>M03O04R15U16<2>Z18_18`19a1Aa1A`19`18<3>U16S15P04<2>\
F03C02801401100310<5>QG1TI1YL2<6>wa3wa3tZ3pX3lV3hS2dP2`N2YL2TI1<3>E90
}
frm:gravijul_2u { ; Variation of gravijul formula - PD 3/98
; Original formula by Mark Christenson
bailout = imag(p3), k = real(p3)
z = abs(pixel):
x = real(z), y = imag(z)
w = fn1(x) + k*y, v = fn1(y) + k*x
u = fn2(w + flip(v))
z = fn4(p1/fn3(u*u)) + p2
|z| < bailout
}
- -
- ------------------------------------------------------------
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------------------------------
Date: Sat, 7 Mar 1998 01:43:30 -0500
From: "Philip DiGiorgi" <phild@iinc.com>
Subject: (fractint) More Gravjul Mania
Here are some more pars. Many of these use an interesting striped map I've
been fooling around with.
Have fun!
--Phil
grav2u06 { ; t= 0:00:28.72 (c) P. DiGiorgi - Mar '98
; Generated on a K6-266 at 1600x1200
reset=1960 type=formula formulafile=grav.frm formulaname=gravijul_2u
function=tan/recip/sqr/acosh passes=1
center-mag=3.10862e-015/-8.88178e-016/0.2121325
params=-1.5/0.5/-2.1/0.02/-0.2/2 float=y maxiter=300 inside=0
logmode=fly decomp=256
colors=000vWEvXFwYG<14>xjdykfykgylh<12>ytwzuyzuy<2>zuyzuxztv<25>wYGvXEvW\
DuVBuUA<4>uS3uR1uQ1<5>sN0sM0rL0rK0qJ0<3>pH0pG0pF0pE0oE0<3>mB0mA0m90m90k9\
0<20>310000000<71>000000200<7>L40O50P50<13>lA0nB0nB0<13>rM0sN0sN1sO2<10>\
vVD
}
grav2u07 { ; t= 0:45:49.16 (c) P. DiGiorgi - Mar '98
; Generated on a K6-266 at 1600x1200
reset=1960 type=formula formulafile=grav.frm formulaname=gravijul_2u
function=ident/atanh/atanh/atanh passes=1
center-mag=0/0/0.5534543/1/-90 params=1/0/0.1/0/0/5 float=y
maxiter=255 inside=0 outside=summ logmode=fly periodicity=0
colors=610Z70<4>nB0<13>uVEvWFwYHwZJ<14>zuy<14>x_KwYHwXG<13>oD2nB0kB0<14>\
000<159>000300920<6>V60
}
grav2u08 { ; t= 0:00:06.48 (c) P. DiGiorgi - Mar '98
; Generated on a K6-266 at 1600x1200
reset=1960 type=formula formulafile=grav.frm formulaname=gravijul_2u
function=cabs/atanh/ident/atanh passes=1
center-mag=0.0103448/0.0199618/0.4435881/1/-90
params=0.9399999999999999/0/0.13/0.025/-0.003/3.75 float=y
maxiter=300 inside=0 outside=summ logmode=fly periodicity=0
colors=A04000JArzVFJApkJCJ6beFAJ4XaBAJ3TY89J2QV68J1MR38S48J1K522XQJ633bV\
N733h_Q744lcT844pgW855tkY955xn_955zpaA66301<19>`5Ba5Cc5Ce6Dg8DiAD<10>zVF\
<10>hAEg8Dd8C<10>000<16>_2a<3>N8mJApI9kG7e<16>000<4>bbbjjjssswwwzzzuyzmw\
z<2>lvykuyktyjsyirx<2>fnwdlwckvaiv`gu<5>QUrORqLOp<2>EGnCDmA9mAAmAAmAAm99\
l99k99i88f88d<2>66U55Q44L<3>000000fzzeyydxwbvu<2>WojTlfQiaMeWIaR<3>0J00K\
0<4>0H00G00E0<2>1A0190270250230321321zzmyylxwkwuivrgtoerlb<2>kZShUOeOK<2\
>V66W66<3>S55Q55P44N44K33<6>000
}
grav2u09 { ; t= 0:05:31.64 (c) P. DiGiorgi - Mar '98
; Generated on a K6-266 at 1600x1200
reset=1960 type=formula formulafile=grav.frm formulaname=gravijul_2u
function=cabs/ident/log/log center-mag=0/1.77636e-015/0.4656563
params=0.5/1/1.5/0/0.155/4.2 float=y maxiter=300 fillcolor=0
logmode=fly decomp=256 periodicity=0
colors=R38J4TXQJJ3RbVNJ3Ph_QJ2NlcTJ1KpgW855<7>855955B55<19>e7Cg8DhAE<10>\
zVF<10>hAEg8Dd8C<10>000<16>_2a<3>N8mJApI9kG7e<16>000<2>NNNA04VVV<2>sssww\
wzzz<2>zzzqqq<2>iiigggfff<2>aaa```___ZZZZZZQQQNMMKKJIHH<2>DCBBAAA98887<6\
>h2rwqUd2ltnT_2fpjSV2`lgQQ1VhcPL1Pe`OG1JaXMB0DYULF0IUQJJ0NQNIN0SNJHS1YJG\
FW1bFCE_1gB9Cc1l75Bh2r319321<14>321E54J65<2>T87W98YA9<6>jDClEDlED<4>zVF<\
3>rLFJApnGEJAnlFEJ9ljEDJ9jgDCJ8heCCJ8ebBBJ7c`AAJ6aY89J6_V68J5YR38J5V
cyclerange=0/255
}
frm:gravijul_2u {; Variation of gravijul formula - PD 3/98
; Original formula by Mark Christenson
bailout = imag(p3), k = real(p3)
z = abs(pixel):
x = real(z), y = imag(z)
w = fn1(x) + k*y, v = fn1(y) + k*x
u = fn2(w + flip(v))
z = fn4(p1/fn3(u*u)) + p2
|z| < bailout
}
- -
- ------------------------------------------------------------
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------------------------------
Date: Sat, 7 Mar 1998 19:33:19 +1000
From: "D&J Pitman" <djpitman@vicnet.net.au>
Subject: (fractint) another out -of -depth-er
I was so glad to read that I am not the only "Granny" on
this list. Since I saw my first fractal I have been fascinated
by the amalgamation of science and art that they represent,
the ideas of visible mathematics and colour, and that first viewing
was a long time ago. My study of maths was limited altho' science
interests me greatly so I have been very grateful to the many listers
who explain the various concepts, altho' I don't C but QB.
Thanks to you others who got me out of lurkdom
Cheers ,Pat.
- -
- ------------------------------------------------------------
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------------------------------
Date: Sat, 7 Mar 1998 07:59:18 -0500
From: Les St Clair <Les_StClair@compuserve.com>
Subject: Re: (fractint) February's pars
Hi Noel,
>>I've loaded the available parameter collections from Les's webpage
onto the Spanky database.<<
>> P.S. Let me know if this is okay with you Les. <<
That's fine by me, placing them on Spanky is an excellent idea. The reaso=
n
for doing the compilations is just to keep these fine postings for
posterity (of course, if I get new visitors to my fractal pages that's go=
od
too! :)
- - Les
- -
- ------------------------------------------------------------
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------------------------------
Date: Sat, 7 Mar 1998 08:45:06 EST
From: Bill at NY <BillatNY@aol.com>
Subject: (fractint) Fractint Tutorial
There seems to be a surprising number of people who subcribe to this
newsletter who are very new to fractals and Fractint. At my website's Links
page, I have a step-by-step tutorial that can be downloaded that can help get
any beginner started with Fractint. Please stop by and check it out. No Math
Required!
http://members.aol.com/billatny/links.htm
Bill
- -
- ------------------------------------------------------------
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------------------------------
Date: Sat, 07 Mar 1998 13:02:16 -0600
From: Bob Margolis <rttyman@wwa.com>
Subject: (fractint) Fractal Formulas
Hi Team Fractals:
Recently I downloaded an important fractal technical/reference paper
from the Internet that was chock full of formulas and other reference
material. I've excised all but the formulas that one can use in Fractint
(and other fractal programs) formula writing. If you're interested in
downloading the entire paper--it's 23 pages of 8.5 x 11-inch paper--surf
over to http://www.lifesmith.com/technical.html#anchor254229 .
Happy formula writing!
Bob Margolis
============================================================
Important Formulae for Complex Numbers
1) z = x + iy where x = Real part of z and y = Imaginary part of z
2) c = a + ib where a = Real part of c and b = Imaginary part of c
3) z = re^iq = (sqrt(x^2 + y^2)) (cos q + i sin q)
where q = arctan (y / x), r = sqrt(x^2 + y^2) and "sqrt" means square
root
4) z^n = r^n*e^inq = (sqrt(x^2 + y^2))^n (cos nq + i sin nq) ; r and q
as
above
5) sqrt(z) = (sqrt(r)sqrt(e^iq)) = (sqrt(sqrt(x^2 + y^2))) [cos (.5
arctan
(y / x))
+ i sin (arctan (y / x))]
6) ln z = ln[sqrt(x^2 + y^2)] + i arctan (y / x)
7) e^z = e^x(cos y + i sin y)
8) sin z = sin x cosh y + i cos x sinh y = -i sinh iz = (e^iz - e^-iz) /
2i
9) cos z = cos x cosh y - i sin x sinh y = cosh iz = (e^iz + e^-iz) / 2
10) sinh z = - i sinh iz = (e^z - e^-z) / 2
11) cosh z = cos iz = (e^z + e^-z) / 2
12) sin^2(z) + cos^2(z) = 1
13) cosh^2(z) - sinh^2(z) = 1
14) tan z = (sin 2x + i sinh 2y) / (cos 2x + cosh 2y)
15) cot z = (sin 2x - i sinh 2y) / (cosh 2y - cos 2x)
16) nth root of z = [nth root of (x^2 + y^2)](cos (q / n) + i sin (q /
n))
17) Newton's Method z(n+1) = z(n) - [f(z(n)) / f '(z(n))]
18) Henon Attractor: (for z(n) = x(n) + iy(n)) , x(n+1) = ax(n) + y(n)
and
y(n+1)= bx(n)
19) Halley Map: z(n+1) = z(n) - L[(2f(z(n))f '(z(n))) / (2(f '(z(n)))^2
- -
f' '(z(n))f(z(n)))]
20) Lorenz Attractor: dx / dt = a(y - x) dy / dt = x(r - z) - y dz / dt
=
xy - bz
Complex Equations Researched
Here are the equations that we have used during the past nine years to
generate well over 300,000 Mandelbrot and Julia sets. We have over 3
terabytes of fractal data! Feel free to continue to delve into them
using
whatever software (your own or canned) you have available. Because I
wrote
my own code in C language and a complex math library was not available,
I
had to resolve each of these equations into real, f(x), and imaginary,
f(y), parts. Many, many long (but fun) hours doing just the basic
algebra
were spent in order to bring you the majestic beauty of these incredible
forms.
1--F(Z) = Z^2 + C
2--F(Z) = Z^3 + C
3--F(Z) = (Z^2 + C) / (Z - C)
4--F(Z) = Z^2 - Z + C
5--F(Z) = Z^3 - Z^2 + Z + C
6--F(Z) = (1 + C)Z - CZ^2
7--F(Z) = Z^3 / (1 + CZ^2)
8--F(Z) = (Z - 1)(Z + .5)(Z^2 - 1) + C
9--F(Z) = (Z^2 + 1 + C) / (Z^2 - 1 - C)
10--F(Z) = Z^1.5 + C
11--F(Z) = exp(Z)-C
12--F(Z) = Z - 1 + Cexp(-Z)
13--F(Z) = CZ - 1 + Cexp(-Z)
14--F(Z) = (4Z^5 + C)/5Z^4
15--F(Z) = (6Z^7 + C)/7Z^6
16--F(Z) = Z^2 * exp(-Z) + C
17--F(Z) = Z^2 * Z^(-2) + C
18--F(Z) = Z * exp(-Z) + C
19--F(Z) = C * exp(-Z) + Z^2
20--F(Z) = Z^3 + Z + C
21--F(Z) = Z^4 + Z + C
22--F(Z) = Z^4 + CZ^2 + C
23--F(Z) = Z^2sin(Re Z) + CZcos(Im Z) + C
24--F(Z) = 2^Z * CZ^2
25--F(Z) = Z^5 - Z^3 + Z + C
26--F(Z) = (Z^2 + C)^2 + Z + C
27--F(Z) = (Z + sin(Z))^2 + C
28--F(Z) = Cexp(Z)
29--F(Z) = Z^2 + C^3
30--F(Z) = Cexp(CZ)
31--F(Z) = Z^2cos(ReZ)+CZsin(ImZ)+C
32--F(Z) = CZ^2 + ZC^2
33--F(Z) = exp(cos(CZ))
34--F(Z) =(1 + Jo(Re Z))^2 + (Jo(Im Z) + C)^2 (Here Jo represents the
Bessel function)
35--F(Z) = C(sin Z + cos Z)
36--F(Z) = Z^(-.5) + C
37--F(Z) = CZ(1 - Z)
38--F(Z) = C^2Z(1 - Z)
39--F(Z) = ((Z^2+C)^2)/(Z-C)
40--F(Z) = (Z + sin Z)^2 + Z^-.5 + C
41--F(Z) = C*(sin Z + cos Z)*(Z^3+Z+C)
42--F(Z) = Cexp(Z) * exp(cosCZ)
43--F(Z) = (Z^3+Z+C)*C*(sinZ + cosZ)
44--F(Z) = ((1+C)Z-CZ^2)*((Z+sinZ)^2+C)
45--F(Z) = Z^2 + Z^1.5 + C
46--F(Z) = Z^2 + ZexpZ + C
47--F(Z) = (Z+sinZ)^2+Cexp(-Z)+Z^2+C
48--F(Z) = ((Z^3)/(1+CZ^2))+expZ-C
49--F(Z) = (Z^2*sin(ReZ) + CZ(ImZ) + (Z^2*cos(ReZ)+CZsin(ImZ)+C
50--F(Z) = (Z+sinZ)^2+Cexp(Z)+C
51-- F(Z) = Z^2 + 1/Z + C
52-- F(Z) = (Z^3 + C) / Z
53-- F(Z) = (Z^3 + C) / Z^2
54-- F(Z) = ((Z+1)^2 + C) / Z
55-- F(Z) = (Z + C)^2 + (Z + C)*
56-- F(Z) = (Z + C)^3 - (Z + C)^2
57-- F(Z) = (Z^3 - Z^2)^2 + C
58-- F(Z) = (Z^2 - Z)^2 + C
59-- F(Z) = (Z + ln Z)^2 + C
60-- F(Z) = (Z - sqrt(Z))^2 + C
61-- F(Z) = (Z + sqrt(Z))^2 + C
62-- F(Z) = Z^2exp(Z) - Zexp(Z) + C
63-- F(Z) = (exp(CZ) + C)^2
64-- F(Z) = Z * exp(Re Z/Im Z) + C
65-- F(Z) = exp(X^2*Y^2) + Im Z + C
66-- F(Z) = exp(Re Z)*(X-a) + exp(Im Z)*(Y-b)i
67-- F(Z) = X^2*exp(Y+b) + iaexp(Y+b)
68-- F(Z) = (a-X^2+Y^2)exp(b+X^2-Y^2) + i(b+X^2-Y^2)exp(a-X^2+Y^2)
69-- F(Z) = [(2X-Y^2+a)/(2X^2+Y-b)] + i[(2X^2+Y-a)/(2X-Y^2+b)]
70-- F(Z) = [(X^2+Y^2+a)/cos(X^2+Y^2)] + i[(X^2+Y^2+b)/sin(X^2+Y^2)]
71-- F(Z) = Z^5 + C
72-- F(Z) = Z^6 + C
73-- F(Z) = Z^7 + C
74-- F(Z) = (3Z^4 + C) / 4Z^3
75-- F(Z) = (2Z^3 + C) / 3Z^2
76-- F(Z) = Z^5 + CZ^3 + C
77-- F(Z) = Z^6 + CZ^4 + CZ^2 + C
78-- F(Z) = Z^8 + C
79-- F(Z) = Z^9 + C
80-- F(Z) = Z^8 + CZ^4 + CZ^2 + C
81-- F(Z) = Z^9 - CZ^6 + CZ^3 + C
82-- F(Z) = (Z^4 + C) / (Z - C)
83-- F(Z) = (Z^3 + Z + C) / (Z^2 - Z - C)
84-- F(Z) = (Z^3 + Z + C) / (Z - C)
85-- F(Z) = (Z^3 + Z + C) / Z
86-- X = X^2+XY+A ; Y = Y^2-XY+B
87-- X = X^3-(X^2)Y+XY^2-XY+A; Y = Y^3-XY^2+(X^2)Y+XY+B
88-- X = (X^2)sin Y + A ; Y = (Y^2)cos X + B
89-- X = X^4-3X^3+3X^2(Y^2)+A ; Y = Y^4+3XY^3-3X^2(Y^2)
90-- X = X^2(1+exp(-Y))+A ; Y = Y^2(1+exp(-X)+B
91-- F(Z) = C(Z^2 + 1)^2 / Z(Z^2 -1)
92-- F(Z) = CZ^2
93-- F(Z) = CZ^3
94-- F(Z) = CZ^4
95-- F(Z) = C*cos Z
96-- F(Z) = C*sin Z
97-- F(Z) = CZ*ln Z
98-- F(Z) = C*tan Z
99-- F(Z) = C*exp(CZ) / (exp(C) - 1)
100-- F(Z) = C*exp(Z)*sqrt(Z) /n
101 -- F(Z) = (Z^2(1+Z^2))/(Z+C)
102 -- F(Z) = Z(1+Z^2)/(Z+C)
103 -- F(Z) = (Z^5+C)/(Z^3+Z^2+Z+1)
104 -- F(Z) = (Z^3+C)/3Z^2
105 -- F(Z) = (Z^3+Z^2+Z+C)/(Z-C)
106 -- F(Z) = exp(Z^2+C)
107 -- F(Z) = Z^2*exp(Z^2)+C
108 -- F(Z) = exp(Z^2)/(Z+C)
109 -- F(Z) = (Z+exp(Z))^2+C
110 -- F(Z) = (Z^2+C)^2-exp(Z)+C
111 -- F(Z) = (1+iC)sin(Z)
112 -- F(Z) = (1+iC)cos(Z)
113 -- F(Z) = Z*tan(ln Z)+C
114 -- F(Z) = sqrt(Z^4+1)+C
115 -- F(Z) = sqrt(Z^4+C)
116 -- F(Z) = C^Z
117 -- F(Z) = C*arctan(Z)
118 -- F(Z) = (ZlnZ)/exp(C)
119 -- F(Z) = exp(Z)/lnZ+C
120 -- F(Z) = sqrt(Z^3+C)
121 -- F(Z) = sqrt(Z^3+1)+C
122 -- F(Z) = cubrt(Z^6+1)+C
123 -- F(Z) = (Z+exp(Z)+ln Z)^2+C
124 -- F(Z) = (Z^2+C+1)^2 / (2Z+C+2)^2
125 -- F(Z) = Z ^ 10 + C
126 -- F(Z) = Z ^ 11 + C
127 -- F(Z) = Z ^ 12 + C
128 -- F(Z) = Z^12 - Z^11 - Z^10 + C
129 -- F(Z) = Z ^ 13 + C
130 -- F(Z) = Z ^ 14 + C
131 -- F(Z) = Z ^ 15 + C
132 -- F(Z) = Z ^ 16 + C
133 -- F(Z) = Z ^ 17 + C
134 -- F(Z) = Z ^ 18 + C
135 -- F(Z) = Z ^ 19 + C
136 -- F(Z) = Z ^ 20 + C
137 -- F(Z) = Z ^ 21 + C
138 -- F(Z) = Z ^ 22 + C
139 -- F(Z) = Z ^ 23 + C
140 -- F(Z) = Z ^ 24 + C
141 -- F(Z) = Z ^ 25 + C
142 -- F(Z) = Z ^ 26 + C
143 -- F(Z) = Z ^ 27 + C
144 -- F(Z) = Z ^ 28 + C
145 -- F(Z) = Z ^ 29 + C
146 -- F(Z) = Z^30 + C
147 -- X=X^2+Y+A+X^2/Y ;Y=Y^2+X+B+Y^2/X
148 -- X=X^3+Y^2-X+A ;Y=Y^3-X^2+Y+B
149 -- X=X^2+2XY-Y+A ;Y=Y^2-2XY+X+B
150 -- X=X^3+AX^2+BY ;Y=Y^3+BY^2+AX
151 -- X=2X^2-3ABY+A ;Y=3Y^2+2ABX-B
152 -- X=X^4lnX+Y^2sinY+A; Y=Y^4lnY+X^2cosX+B
153 -- X=sqr(ln(X^2))+YsinX+A; Y=sqr(ln(Y^2))-XcosY+B
154 -- X=.5(X^2-Y^2)+.5(X+Y)+A; Y=.5(Y^2-X^2)-.5(X+Y)+B
155 -- X=sqr(X^3)+sqr(Y^3)+A; Y=sqr(Y^3)-sqr(X^3)+B
156 -- X=Y/sqrX+X/sqrY+A; Y=XsqrY+YsqrX+B
157 -- F(Z) = Z^30 - 30Z^29 - 870Z^28 + C
158 -- F(Z) = Z^27 - 27Z^26 - 702Z^25 + C
159 -- F(Z) = Z^24 - 24Z^23 - 552Z^22 + C
160 -- F(Z) = Z^21 - 21Z^20 - 420Z^19 + C
161 -- F(Z) = Z^18 - 18Z^17 - 306Z^16 + C
162 -- F(Z) = Z^15 - 15Z^14 - 210Z^13 + C
163 -- F(Z) = Z^30 - 30Z^29 - 870Z^28 + Z^27 - 27Z^26 - 702Z^25 + C
164 -- F(Z) = Z^27 - 27Z^26 - 702Z^25 + Z^24 - 24Z^23 - 552Z^22 + C
165 -- F(Z) = Z^24 - 24Z^23 - 552Z^22 + Z^21 - 21Z^20 - 420Z^19 + C
166 -- F(Z) = Z^21 - 21Z^20 - 420Z^19 + Z^18 - 18Z^17 - 306Z^16 + C
167 -- F(Z) = Z^18 - 18Z^17 - 306Z^16 + Z^15 - 15Z^14 - 210Z^13 + C
168 -- F(Z) = Z^30 - 30Z^29 - 870Z^28 + Z^27 - 27Z^26 - 702Z^25 + Z^24 -
24Z^23 -
552Z^22 + C
169 -- F(Z) = Z^27 - 27Z^26 - 702Z^25 + Z^24 - 24Z^23 - 552Z^22 + Z^21 -
21Z^20 -
420Z^19 + C
170 -- F(Z) = Z^24 - 24Z^23 - 552Z^22 + Z^21 - 21Z^20 - 420Z^19 + Z^18 -
18Z^17 -
306Z^16 + C
171 -- F(Z) = Z^21 - 21Z^20 - 420Z^19 + Z^18 - 18Z^17 - 306Z^16 + Z^15 -
15Z^14 -
210Z^13 + C
172 -- F(Z) = Z^30 - Z^29 + Z^28 - Z^27 + Z^26 - Z^25 + C
173 -- F(Z) = Z^24 - Z^23 + Z^22 - Z^21 + Z^20 - Z^19 + C
174 -- F(Z) = Z^18 - Z^17 + Z^16 - Z^15 + Z^14 - Z^13 + C
175 -- F(Z) = Z^15sinX - Z^14cosY - Z^13tanX + C
176 -- F(Z) = Z^12cosX - Z^11sinY - Z^10tanY + C
177 -- F(Z) = Z^15sinA - Z^14cosB - Z^13tanX - Z^12tanY + C
178 -- F(Z) = Z^12cosA - Z^11sinB - Z^10tanY - Z^9tanX + C
179 -- F(Z) = Z^30sinX - 30Z^29cosY + C
180 -- F(Z) = Z^28cosX - 28Z^27sinY + C
181 -- F(Z) = (Z^3+3Z(C-1)+(C-1)(C-2))^2
182 -- F(Z) = (3Z^2+3Z(C-2)+C^2-3C+3)^2
183 -- F(Z) = (Z^3+3Z(C-1)+(C-1)(C-2))^2 / (3Z^2+3Z(C-2)+C^2-3C+3)^2
184 -- F(Z) = Z ^ pi + C
185 -- F(Z) = pi ^ Z + C
186 -- F(Z) = Z ^ 4 + C
187 -- F(Z) = Z ^ pi + pi ^ C
188 -- F(Z) = C * Z ^ pi
189 -- F(Z) = Z ^ pi - Z ^ 3 + C
190 -- F(Z) = Z ^ pi - Z ^ 2 + C
191 -- F(Z) = Z ^ 2.5 + C
192 -- F(Z) = (5Z^6 + C)/6Z^5
193 -- F(Z) = Z ^ e + C
194 -- F(Z) = Z ^ (C * e)
195 -- F(Z) = (Z ^ e) ^ C
196 -- F(Z) = C * Z ^ e
197 -- F(Z) = Z ^ (pi * e)
198 -- F(Z) = Z * (C ^ e)
199 -- F(Z) = cbrt(Z ^ 7 + 1) + C
200 -- F(Z) = Z ^ 4.669 + C
201 -- F(Z) = (Z ^ 8 + 1) ^ 1/4 + C
202 -- F(Z) = (Z ^ 9 + 1) ^ 1/4 + C
203 -- F(Z) = ((Z ^ 2 * (ReZ - (ImZ)^2))/(1 - Z)) + C
204 -- F(Z) = (Z ^ 10 + C) ^ 1/4
205 -- F(Z) = (Z ^ 10 + 1) ^ 1/4 + C
206 -- F(Z) = (Z ^ 11 + C) ^ 1/4
207 -- F(Z) = (Z ^ 11 + 1) ^ 1/4 + C
208 -- F(Z) = (Z ^ 12 + C) ^ 1/4
209 -- F(Z) = (Z ^ 12 + 1) ^ 1/4 + C
210 -- F(Z) = YZ^2sinX - XZcosY + C
211 -- F(Z) = XZ^3cosY + YZ^2sinX + C
212 -- F(Z) = Z^4 - Z^2cosX + YsinY + C
213 -- F(Z) = XYZ^2 + C
214 -- F(Z) = Z^2 + X^2*Y^2 + C
215 -- F(Z) = Z^3 + X^2sinY + Y^2cosX + C
216 -- F(Z) = (Z ^ 13 + C) ^ 1/6
217 -- F(Z) = (Z ^ 5 + C) ^ 1/3
218 -- F(Z) = (Z ^ 4 + C) ^ 1/sin X
219 -- F(Z) = Z ^ 2 + iZ ^ 2 + C
220 -- F(Z) = Z ^ 3 + iZ ^ 3 + C
221 -- F(Z) = Z ^ 4 + iZ ^ 2 + C
222 -- F(Z) = (Z ^ 4 / Z + 1) + C
223 -- F(Z) = (Z ^ 6 / Z + 1) + C
224 -- F(Z) = (Z ^ 4 / Z + i) + C
225 -- F(Z) = (Z ^ 6 / Z + i) + C
226 -- F(Z) = (Z ^ 2 / (lnZ)^2) + C
227 -- F(Z) = (Z ^ 2 / (ln(Z^2)) + C
228 -- F(Z) = (Z ^ 3 / (lnZ)^3) + C
229 -- F(Z) = (Z ^ 3 / (ln(Z^3)) + C
230 -- F(Z) = (Z ^ 4 / (lnZ)^4) + C
231 -- F(Z) = (Z ^ 4 / (ln(Z^4)) + C
232 -- F(Z) = Z ^ 2 + Z / ln Z + C
233 -- F(Z) = Z ^ 2 + ln Z / Z + C
234 -- F(Z) = Z ^ 6 + Z ^ 4 + Z ^ 2 + C
235 -- F(Z) = Z ^ 6 - Z ^ 4 - Z ^ 2 + C
236 -- F(Z) = Z ^ (1/Z) + C
237 -- F(Z) = Z ^ 2 + sin Z / Z + C
238 -- F(Z) = Z ^ 2 + Z / sin Z + C
239 -- F(Z) = Z ^ iZ + C
240 -- F(Z) = Z ^ 2 * exp(X) + C
241 -- F(Z) = Z ^ 2 * exp(X ^ 2) + C
242 -- F(Z) = Z ^ 3 * exp(X) + Z ^ 2 * exp(Y) + C
243 -- F(Z) = exp(Z ^ Z) + C
244 -- F(Z) = (Z ^ 3) / (Z + 1) + C
245 -- F(Z) = Z ^ 2 / C
246 -- F(Z) = (Z ^ 4 + 1) / (Z + C)
247 -- F(Z) = (Z ^ 4 + C) / (Z ^ 2 + 1)
248 -- F(Z) = (Z ^ 4 + C) / (1 - Z ^ 2)
249 -- F(Z) = Z ^ 2 * exp(Z) / (Z + C)
250 -- F(Z) = Z ^ 2 - exp(Z) + sin(Z) + C
251 -- F(Z) = (Z ^ 4) / (Z ^ 2 + C)
252 -- F(Z) = Z ^ 2 + sqrt(Z ^ 2 + C)
253 -- F(X) = X^2 - Y^2 + XsinY + A; F(Y) = Y^2 - B
254 -- F(X) = X^2 + atan(Y/X) + A; F(Y) = Y^2 - A
255 -- F(X) = 1 - X - Y^2 + A; F(Y) = 1 - Y + X^2 + B
256 -- F(X) = exp(sqrt(X)) - exp(sqrt(Y)) + A; F(Y) = exp(XlnY) + B
257 -- F(Z) = C ^ 2 * ln(Z ^ 2)
258 -- F(Z) = Z ^ 2 ln(C)
259 -- F(Z) = Z ^ 2 ln(C) + C
260 -- F(Z) = Z ^ 2 ln(Z + C)
261 -- F(Z) = Z ^ -2 + C
262 -- F(Z) = ((X^2 + Y^2 + A) / (X^2 - Y^2)) + i[((X^2 - Y^2 - B) /
(X^2 +
Y^2))]
263 -- F(Z) = (X^3 - iY + C) / (X + Y + 1)
264 -- F(Z) = [(X^2 + A^2) / Y] + i[(Y^2 + B^2) / X]
265 -- F(Z) = [(X^3 + X^2 + X + A) / (Y^3 - Y^2 - Y - 1)] + i[(Y^3 + Y^2
+
Y + B) /
(X^3 - X^2 - X - 1)]
266 -- F(Z) = [(X^4 - Y^2) / (X + Y + A)] + i[(X^2 + Y^4) / (X - Y - B)]
267 -- F(Z) = C ^ 3 / Z ^ 2
268 -- F(Z) = [Z^(1/2) / Z^(1/3)] + C
269 -- F(Z) = (Z ^ 2 + C) / (1 - C)
270 -- F(Z) = (exp(Z ^ 4)/ Z ^ 4) + C
271 -- F(Z) = (Z ^ 6 + 1) ^ (1/5) + C
272 -- F(Z) = Z ^ 2 + CZ + C * sin Y - Z * cos X + C
273 -- F(Z) = Z ^ 6 - Z ^ 5 - Z ^ 4 - Z ^ 3 - Z ^ 2 - Z + C
274 -- F(Z) = Z ^ 2 * (sin C / C)
275 -- F(Z) = exp(- Z ^ 2 / 2) + C
276 -- F(Z) = (Z ^ 3 + 3 * Z - 1) / (2 - Z)
277 -- F(Z) = Z ^ 3 * sin C + Z ^ 2 * cos C + XY + C
278 -- F(Z) = (Z ^ 2 + 1) ^ 2 / (Z + C) ^ 2
279 -- F(Z) = (Z ^ 2 + C + 1) ^ 2 / (Z - C - 1) ^ 2
280 -- F(Z) = Z ^ 4 * sin Y + Z ^ 2 * cos X + XY + C
281 -- F(Z) = Z * cos (XY) + C
282 -- F(Z) = Z ^ 2 * cos (X ^ 2 + Y ^ 2) + C
283 -- F(Z) = Z ^ (2 + ln C)
284 -- F(Z) = Z ^ (9/7) + C
285 -- F(Z) = Z ^ 5 * (1 - Z - (Z + C) ^ 2) + C
286 -- F(Z) = Z ^ 6 + Z ^ 5 + C
287 -- F(Z) = Z ^ 6 + Z ^ 4 + C
288 -- F(Z) = Z ^ 6 + Z ^ 3 + C
289 -- F(Z) = Z ^ 6 + Z ^ 2 + C
290 -- F(Z) = Z ^ 6 + Z + C
291 -- F(Z) = Z ^ 2 + cos Z + C
292 -- F(Z) = Z ^ 2 + cos 2Z + C
293 -- F(Z) = Z ^ 2 + cos 3Z + C
294 -- F(Z) = Z ^ 2 + cos 4Z + C
295 -- F(Z) = Z ^ 2 + cos 5Z + C
296 -- F(Z) = (Z ^ 7 + C) / Z ^ 5
297 -- F(Z) = (Z ^ 7 + C) / Z ^ 4
298 -- F(Z) = (Z ^ 7 + C) / Z ^ 3
299 -- F(Z) = (Z ^ 7 + C) / Z ^ 2
300 -- F(Z) = (Z ^ 7 + C) / Z
301 -- F(Z) = Z ^ 3 - Z ^ 2 - Z + C
302 -- F(Z) = Z ^ 4 - Z ^ 3 - Z ^ 2 + C
303 -- F(Z) = Z ^ 5 - Z ^ 4 - Z ^ 3 + C
304 -- F(Z) = Z ^ 6 - Z ^ 5 - Z ^ 4 + C
305 -- F(Z) = Z ^ 7 - Z ^ 6 - Z ^ 5 + C
306 -- F(Z) = Z ^ 2 * (cos(Z)) ^ 2 + C
307 -- F(Z) = Z ^ 2 * (cos(XY)) ^ 2 + C
308 -- F(Z) = Z ^ 4 * (sin(Z)) ^ 2 + C
309 -- F(Z) = Z ^ 3 * (sin(XY)) ^ 2 + C
310 -- F(Z) = Z ^ 3 * (cos(Z)*sin(Z)) + C
311 -- F(Z) = (Z ^ 2 / sin(Z)) + C
312 -- F(Z) = (Z ^ 4 / cos(Z)) + C
313 -- F(Z) = (Z ^ 6 + C) / (sin(Z) * cos(Z))
314 -- F(Z) = (Z ^ 3 + Z ^ 2 + Z + C) / (Z + cos(Z)
315 -- F(Z) = (Z ^ 2 * ln Z + Z + C) / (sin(Z)) ^ 2
316 -- F(Z) = Z ^ 4 + (cos X) ^ 2 + (sin Y) ^ 2 + C
317 -- F(Z) = Z ^ 3 + cos X * sin Y + C
318 -- F(Z) = Z ^ 4 + Z + cos C
319 -- F(Z) = Z ^ 2 + Z + tan C
320 -- F(Z) = Z ^ 3 + Z ^ 2 + exp(1 + sin X) + C
321 -- F(Z) = sqrt(Z ^ 4 + cos(theta) + C); theta = arctan (Im Z / Re Z)
322 -- F(Z) = sqrt(Z ^ 5 + Z ^ 3 + Z + C)
323 -- F(Z) = sqrt(Z ^ 4 + Z ^ 3 + Z ^ 2 + Z + C)
324 -- F(Z) = sqrt(Z ^ 6 - Z ^ 3 + C)
325 -- F(Z) = sqrt(ln (Z ^ 2) + Z ^ 2 * ln Z + C)
326 -- F(Z) = cos((Z ^ 2 + C) / XY)
327 -- F(Z) = cos((Z ^ 3 + C) / XY)
328 -- F(Z) = cos((Z ^ 4 + C) / XY)
329 -- F(Z) = ((Z ^ 4 + C) / XY) + cos((Z ^ 3 + C) / XY)
330 -- F(Z) = cos((Z ^ 4 + C) / XY) + cos((Z ^ 3 + C) / XY) + cos((Z ^ 2
+
C) / XY)
331 -- F(Z) = Z ^ 3/2 + Z ^ 4/3 + C
332 -- F(Z) = Z ^ 4/3 + Z ^ 5/4 + C
333 -- F(Z) = Z ^ 5/4 + Z ^ 6/5 + C
334 -- F(Z) = Z ^ 5/2 + Z ^ 7/3 + C
335 -- F(Z) = Z ^ (pi/e) ^ 2 + C
336 -- F(Z) = Y * sin X * cos Y * exp(-X) + C
337 -- F(Z) = Z ^ 2 * cos X * cos Y * exp(-Y) + C
338 -- F(Z) = XYZ * sin X * sin Y * exp(Z) + C
339 -- F(Z) = Z ^ 3 + X ^ 2 * Y ^ 2 * cos X * sin Y + C
340 -- F(Z) = Z ^ 2 + X ^ 2 * sin Y + Y ^ 2 * cos X + C
341 -- F(Z) = 1 / Z + 1 / Z ^ 2 + C
342 -- F(Z) = Z ^ 2 / Z' + Z ^ 3 / Z' ^ 2 + C
343 -- F(Z) = Z ^ 3 / C' + Z ^ 2 + C
344 -- F(Z) = Z ^ 2 + Z' ^ 2 + C
345 -- F(Z) = Z ^ 3 + Z ^ 2 * Z' + Z * Z' ^ 2 + Z' ^ 3 + C
346 -- F(Z) = Z ^ 4 - Z ^ 3 * Z' + Z ^ 2 - Z' + C
347 -- F(Z) = Z ^ 5 - C * Z ^ 3 - C' * Z ^ 2 + Z' + C
348 -- F(Z) = Z ^ 4 * Z' ^ 2 - Z ^ 3 * Z' + C
349 -- F(Z) = Z ^ 6 + Z' ^ 5 + Z ^ 4 + Z' ^ 3 + Z ^ 2 + Z' + C
350 -- F(Z) = Z ^ 4 + Z ^ 2 / Z' + Z' ^ 3 / Z ^ 2 + C
351 -- F(Z) = arcsin(ln(Z)) + C
352 -- F(Z) = arctan(ln(Z)) + C
353 -- F(Z) = (arcsin(ln(Z))) ^ 2 + C
354 -- F(Z) = e ^ (1 + cos(ln(Z))) + C
355 -- F(Z) = e ^ (2 - e ^ cos(Z)) + C
356 -- F(Z) = XY * Z^2 - X^2 * YZ + X * Y ^ 2 * Z ^ 3 + C
357 -- F(Z) = X ^ 3 * Y ^ 4 + X ^ 2 * Z ^ 5 + C
358 -- F(Z) = XY^2Z^3 - X^3Y^2Z + X^2Y^2Z^2 + C
359 -- F(Z) = Z ^ 4 - X ^ 2 * cos(Y) + Y * sin(X) + C
360 -- F(Z) = Z ^ 3 - Y ^ 2 * cos(XY) - X ^ 2 * sin(X) - Y * cos(Y) + C
361 -- F(Z) = (Z ^ 3 + C) / (Z ^ 3 - C)
362 -- F(Z) = (Z ^ 3 + C ^ 2 + 1) / (Z ^ 3 - C ^ 2 - 1)
363 -- F(Z) = (Z ^ 3 + Z + C) / (Z ^ 3 - Z - 1)
364 -- F(Z) = (Z ^ 2 - Z ^ 3 + 1) / (Z ^ 4 + C)
365 -- F(Z) = (Z ^ 4 + C) / (4Z ^ 3 + 1)
366 -- F(Z) = (Z ^ C) / (Z + 1)
367 -- F(Z) = (Z ^ (1 + C)) / (1 + C)
368 -- F(Z) = (2 ^ Z) / C
369 -- F(Z) = 2 ^ Z + C
370 -- F(Z) = 2 ^ Z + (2 ^ Z) / C + C
371 -- F(Z) = XYZ ^ 2 - X ^ 2YZ + C
372 -- F(Z) = X ^ 4 * Y ^ 3 * Z ^ 2 + C
373 -- F(Z) = X^3*Y^3*Z^3 - X^2*Y^2*Z^2 + XYZ + C
374 -- F(Z) = XY^2Z + X^2YZ^4 + C
375 -- F(Z) = Z^2*sqrt(XY) + XY^2Z^4*sqrt(XY) + C
376 -- F(Z) = Z ^ (2XY) + C
377 -- F(Z) = X ^ (2YZ) + C
378 -- F(Z) = Y ^ (Z^2) + X + C
379 -- F(Z) = X ^ (2YZ) + Z ^ (2XY) + C
380 -- F(Z) = (XY) ^ (Z - C)
381 -- F(Z) = Z ^ 2C + C
382 -- F(Z) = Z ^ 2 + C ^ 2Z + C
383 -- F(Z) = X^Y + Z^X + Y^Z + C
384 -- F(Z) = Z ^ 2 + A ^ X + B ^ Y + C
385 -- F(Z) = Z ^ 3 + X ^ (AB) + Y ^ C
386 -- F(Z) = Z ^ 9 - Z ^ 8 - Z ^ 7 + C
387 -- F(Z) = Z^9 - 9Z^8 - 8Z^7 + C
388 -- F(Z) = Z^9 - 9Z^8 - 8Z^7 - 7Z^6 - 6Z^5 - 5Z^4 + C
389 -- F(Z) = Z^9 - 9Z^8 - 8Z^7 - 7Z^6 - 6Z^5 - 5Z^4 - 4Z^3 - 3Z^2 - 2Z
+C
390 -- F(Z) = Z^9 + C^9
391 -- F(Z) = Z^3 + Z^2 + CsinX + C
392 -- F(Z) = Z^4 + X^2 - Y^2 - C^2*cosZ + C + A
393 -- F(Z) = Z^5 + Im(Z^4 + Z^3 + Z^2) + CZRe(Z^2 + C) + C
394 -- F(Z) = Z^3 + Z^2*cosY + ZsinX + C
395 -- F(Z) = Z^4 + (Z^2 / sinY) + (CZ^3 / cosX) + C
396 -- F(Z) = (Z + ln Z)^4 + C
397 -- F(Z) = Z + (ln Z)^4 + C
398 -- F(Z) = Z^2 + (ln Z)^3 + C
399 -- F(Z) = Z^3 + (ln Z)^2 + C
400 -- F(Z) = (ln Z)^2 + C^2 + C
Lissajous Figures
A 3-D Lissajous figure is created using three parametric equations, one
each for the x, y, and z coordinates. These equations are functions of
sin
and cos, so they are periodic, with the actual period depending on what
values you enter. The values you input in these functions are: a, b, and
exponents x, y, and z. The value of t, the parametric "time" parameter,
ranges from 0 to the number of spheres plotted minus one. Thanks to
Aaron
C. Caba for the info.
We used five different sets of equations. Here they are:
Set 1)
x = r * (sin(a*t) * (cos(b*t)^x))
y = r * (sin(a*t) * (sin(b*t)^y))
z = r * (cos(a*t)^z)
Set 2)
x = r * (sin(a*t) * (cos(b*t)^x))
y = r * (cos(a*t) * (cos(b*t)^y))
z = r * (sin(a*t)^z)
Set 3)
x = r * (sin(a*t) * (sin(b*t)^x))
y = r * (sin(a*t) * (cos(b*t)^y))
z = r * (sin(a*t)^z);
Set 4)
x = r/4 * (a * sin(2*(t-pi/13))^x)
y = r/4 * (-b * cos(t)^y)
z = r * (sin(a*t)^z)
Set 5)
x = r * (sin(a*t) * (cos(a*t)^x))
y = r * (sin(b*t) * (sin(b*t)^y))
z = r * (sin(t)^z)
Spherical Harmonics
Spherical harmonics are expressions in three-dimensional spherical
coordinates which are primarily used to describe the theoretical hybrid
electron orbital shapes in molecules. The three coordinates are r (for
radius), theta (degrees in the traditional x-y plane), and phi (degrees
in
the y-z plane). You may also recognize this way of laying out spatial
coordinates from Star Trek's "210 mark 45" designation for navigation as
the degrees in theta and phi. As with the rectangular coordinates, x, y,
and z, we can describe any point in three dimensional space using such a
coordinate system. All types of scientists use spherical and cylindrical
(rho, theta, and z) coordinate systems to analyze various physical
phenomena.
Here are a few of the examples we have used to produce our mathematical
"flying saucers:"
r = (cos (theta))^2 + (cos(2 * theta))^4 + sin(4 * phi)
r = (cos(12 * theta))^5 + (cos(8 * theta))^3 + cos(6 * theta)
r = 2 * (cos(6 * theta))^6 - 4 * (cos(4 * theta))^4 - 2 * (cos(2
* theta))^2
rho = (sin(theta))^4 + (sin(2 * theta))^2 + e ^ (1 - sin(z))
rho = 4 * (cos(4 * theta))^4 - 2 * (cos(2 * theta))^2 + (1 + cos
(z))^2
You can experiment with an infinite number of possibilities. You will
soon
discover what each coefficient, exponent, and function does to the
overall
shape of the object. Happy Hunting!
Affine Transformations
(Due to the limitations of web publishing, our notation of matrices,
symbols, subscripts etc. will be clumsily laid out...please bear with
us...as our tools improve, so will our presentation.)
As given by Barnsley in "Fractals Everywhere," an affine transformation
is
a manipulation of a geometric set of points (here x1 and x2, or just x)
using matrices and column vectors such that:
w(x1,x2) = (ax1 + bx2 + e , cx1 + dx2 + f)
A general affine two-dimensional transformation, is given by:
w(x) = Ax + t
where A is a 2 x 2 real matrix and t is the column vector:
A =
(a b)
(c d)
t =
(e)
(f)
In graphic terms, the A matrix transforms x by a linear transformation,
which deforms space relative to the origin (involving rotation and
rescaling), whereas the t vector merely translates (moves) the points
once
the deformation is complete.
The matrix A can always be written as:
A =
(r1 cos g -r2 cos h)
(r1 sin g r2 sin h)
where r1 and r2 are scaling factors and g and h are rotation angles.
Barnsley continues in his book to describe Iterated Function Systems, a
way
of describing objects created by affine transformations. Using the
letters
w, a, b, c, d, e, and f as defined above, he offers a typical a typical
fern designation in tidier "IFS code:"
IFS code for a Fern (Barnsley)
w a b c d e f p
1 0 0 0 .16 0 0 .01
2 .85 .04 -.04 .85 0 1.6 .85
3 .2 -.26 .23 .22 0 1.6 .07
4 -.15 .28 .26 .24 0 .44 .07
Notice he provides a number p which corresponds to the probability that
each of the four "w" transformations will be used given each point
(x1,x2) that is to be manipulated. All of the p's must add up to one.
Because of this probability factor, each time you generate a fern, it
will be a slightly different fern. Thus we are not producing a
"deterministic fractal," as are Mandelbrot and Julia sets (which are
exactly reproducible), but more of a "random iteration" fractal.
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