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Re: Thread for basic non-CGOL questions
Posted: April 12th, 2021, 7:15 pm
by MathAndCode
Are aircraft carriers more common in B35i6ac8S23, or is this just a fluke?
Code: Select all
x = 36, y = 12, rule = B35i6ac8/S23
14bo$13bo17bo$13b3o14bo$30b3o5$3o$2bo31bo$bo31b2o$33bobo!
Edit: I think that I see the reason. A glider that undergoes fishhook-type interaction in a specific way turns into an aircraft carrier. It looks like that reaction probably won't occur a lot besides in the context of a glider colliding with another glider or an active region.
Another edit: Maybe it's more common than I anticipated.
Code: Select all
x = 11, y = 9, rule = B35i6ac8/S23
2bo$b3o$2o5b2o$7bobo$9bo$3b2o4b2o$3bo$4b3o$6bo!
[[ STOP 15 ]]
Re: Thread for basic non-CGOL questions
Posted: April 20th, 2021, 2:43 pm
by cgoler2
What type of sawtooth is this?
Code: Select all
x = 1, y = 2, rule = MAPkindle
o$o!
Re: Thread for basic non-CGOL questions
Posted: April 23rd, 2021, 1:58 pm
by MathAndCode
How is B35i6-en8S23 explosive? B-heptomino, stairstep hexomino, bullet hexomino, T tetromino, century, R-pentomino, and wing all settle quickly, before they are likely to hit something else, and all of them except the last two die completely. Buns and pi heptominoes last for longer, but the former settles within a hundred generations, the latter settles within fifty generations, neither releases any gliders, and pi heptominos aren't as common anyway because the bullet hexomino instead evolves into what would be a traffic light predecessor in B3S23.
Re: Thread for basic non-CGOL questions
Posted: April 23rd, 2021, 5:02 pm
by cgoler2
MathAndCode wrote: April 23rd, 2021, 1:58 pm
How is B35i6-en8S23 explosive? B-heptomino, stairstep hexomino, bullet hexomino, T tetromino, century, R-pentomino, and wing all settle quickly, before they are likely to hit something else, and all of them except the last two die completely. Buns and pi heptominoes last for longer, but the former settles within a hundred generations, the latter settles within fifty generations, neither releases any gliders, and pi heptominos aren't as common anyway because the bullet hexomino instead evolves into what would be a traffic light predecessor in B3S23.
A related question: Why are figure eights so common in B35i6-en8/S23?
Re: Thread for basic non-CGOL questions
Posted: April 23rd, 2021, 5:34 pm
by MathAndCode
cgoler2 wrote: April 23rd, 2021, 5:02 pmA related question: Why are figure eights so common in B35i6-en8/S23?
As explained
here, adding B5i and B8 to B3S23 makes figure eights evolve from teardrop predecessors.
Re: Thread for basic non-CGOL questions
Posted: April 25th, 2021, 1:51 am
by Aleph
Why is (11,10)c/22 easier to find than 9c/10? Both seem to be past the 5c/6 horizon, but (11,10)c/22 is even closer to the speed limit than 9c/10.
Re: Thread for basic non-CGOL questions
Posted: April 25th, 2021, 2:54 pm
by toroidalet
I am a non-expert, but it seems to me like the reason is that the 9c/10 frontend is wide, meaning that the chance of a forward engine spontaneously clearing its debris over its whole width is lower (because there's more of it). On the other hand, an (11,10)c/22 spaceship can just use a thin and clean c/2 diagonal engine and interrupt it every 22 generations.
Re: Thread for basic non-CGOL questions
Posted: April 25th, 2021, 7:02 pm
by praosylen
wwei47 wrote: April 25th, 2021, 1:51 am
Why is (11,10)c/22 easier to find than 9c/10? Both seem to be past the 5c/6 horizon, but (11,10)c/22 is even closer to the speed limit than 9c/10.
Because (11,10)c/22 is only close to the
vacuum speed limit, whereas 9c/10o is close to the
information speed limit. So for 9c/10o there's no way for information to catch up to a lightspeed engine and stop it for a generation, whereas information can catch up to a c/2d engine easily for (11,10)c/22. Accordingly, it's really hard to convince a leading edge to advance non-permanently at lightspeed for 9 generations without getting any information to tell it to do that from behind...
Re: Thread for basic non-CGOL questions
Posted: April 25th, 2021, 9:08 pm
by Aleph
Why are so many ships that are past the 5c/6 horizon short wide ships?
Re: Thread for basic non-CGOL questions
Posted: April 26th, 2021, 9:09 am
by DanWilson
Is there a lt on the Forum thread with a Introductionion of yourself?
Re: Thread for basic non-CGOL questions
Posted: April 26th, 2021, 9:12 am
by Aleph
DanWilson wrote: April 26th, 2021, 9:09 am
Is there a lt on the Forum thread with a Introductionion of yourself?
viewtopic.php?f=12&t=530
Re: Thread for basic non-CGOL questions
Posted: April 26th, 2021, 9:15 am
by cgoler2
DanWilson wrote: April 26th, 2021, 9:09 am
Is there a lt on the Forum thread with a Introductionion of yourself?
That doesn't relate to other cellular automata.
Re: Thread for basic non-CGOL questions
Posted: April 27th, 2021, 12:14 am
by Aleph
A for awesome wrote: April 25th, 2021, 7:02 pmAccordingly, it's really hard to convince a leading edge to advance non-permanently at lightspeed for 9 generations without getting any information to tell it to do that from behind...
Does this count?
Also, we've already got past that leading edge problem. Why is the rest so hard? (Not as in difficult to extend, but seemingly impossible to extend)
EDIT: Is there a 6c/7 with this frontend? This returns UNSAT in less than 3 seconds on my computer.
Code: Select all
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0 0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 0 0
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0 * * * * * * * * * * * * * * * * * 0
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0 * * * * * * * * * * * * * * * * * 0
0 * * * * * * * * * * * * * * * * * 0
0 * * * * * * * * * * * * * * * * * 0
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0 * * * * * * * * * * * * * * * * * 0
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0 * * * * * * * * * * * * * * * * * 0
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0 * * * * * * * * * * * * * * * * * 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Edit 2: Any tips for finding (n-1)c/n ships? 6c/7 usually takes less than 10 seconds to find a ship, 7c/8 over 3 hours to find a ship, and 8c/9 returns UNSAT in seconds.
Re: Thread for basic non-CGOL questions
Posted: May 28th, 2021, 2:16 pm
by ihatecorderships
What's the period of this oscillator?
Code: Select all
x = 6, y = 85, rule = B2ek3i4a/S23
2bobo$2b3o4$2o$o3b2o$bo3bo$o3bo$bo3bo$o3bo$bo3bo$o3bo$bo3bo$o3bo$bo3bo
$o3bo$bo3bo$o3bo$bo3bo$o3bo$bo3bo$o3bo$bo3bo$o3bo$bo3bo$o3bo$bo3bo$o3b
o$bo3bo$o3bo$bo3bo$o3bo$bo3bo$o3bo$bo3bo$o3bo$bo3bo$o3bo$bo3bo$o3bo$bo
3bo$o3bo$bo3bo$o3bo$bo3bo$o3bo$bo3bo$o3bo$bo3bo$o3bo$bo3bo$o3bo$bo3bo$
o3bo$bo3bo$o3bo$bo3bo$o3bo$bo3bo$o3bo$bo3bo$o3bo$bo3bo$o3bo$bo3bo$o3bo
$bo3bo$o3bo$bo3bo$o3bo$bo3bo$o3bo$bo3bo$o3bo$bo3bo$o3bo$bo3bo$o3bo$bo
3bo$o3bo$bo3bo$o3bo$bo3bo$2o2b2o!
Re: Thread for basic non-CGOL questions
Posted: May 29th, 2021, 5:39 pm
by toroidalet
The period of that oscillator is 2,147,483,646 (2^31-2), so you would've had to run oscar.lua for quite a while to find it. Fortunately, this is a well-studied type of oscillator and so the solution can be found in one of 2 ways:
Big lookup table (lazy way):
A while ago, someone at Wolfram evaluated the periods of this type of oscillator on a
toroidal grid (people suspect that some numbers may be small by various prime factors) (see
here for the document and some commentary). Take the length of the replicator region (in this case, 76 cells), then add one and double it. The number under that index in the table will be the period due to math reasons.
(basically, if you look at the replicator strip as a circle, the initial cell and the one opposite it will never be occupied because symmetry means that if live cells are next to them, then both of those live cells will be on, so it effectively splits into 2 bounded replicator strips)
Using modulo arithmetic (less lazy way):
Over a decade ago, conwaylife.com's own Nathaniel wrote a
paper in which he proved (section 5) that for these types of oscillators, the period is equal to
2*((2^k)-1) where k is the smallest number such that
2^k mod (length+1) is ±1 (he says 2n+1 but the length of each replicator unit is 2 so length 2n means n replicator units).
Note: those oscillators may look very different, but their outer edges simulate the same cellular automaton and both families have the same periods. I hope this was helpful.
Re: Thread for basic non-CGOL questions
Posted: May 31st, 2021, 9:24 pm
by LaundryPizza03
I can't determine if this was discovered by Josh Ball or Apple Bottom, but it was known no later than January 2016. Was it discovered by someone else before that?
Code: Select all
x = 6, y = 5, rule = B358/S3567
b4o$6o$2b2o$b4o$bo2bo!
This object works from B3aeijn5-eij/S3-c5eijnq6ac7 to B2ikn34-arw56en7c8/S01e2ein34cejkwy567, including the OT rules B35/S3567 - B358/S03567.
Re: Thread for basic non-CGOL questions
Posted: June 19th, 2021, 11:09 pm
by yujh
Again, how can I read this skew gutter soup?
Code: Select all
x = 16, y = 16, rule = B3-kq4z5e7c8/S2-ci3-a4ciq5ek6eik7
oobbboobbooobbob$
booooobbobboboob$
bbobobbbbbbboooo$
bbbooobbbboobbbb$
oboboooobobbbobb$
oobobobobbooobob$
bobobbobbbobobob$
oooboobbbboooobo$
bobbboooobbboobb$
oobboboobobbboob$
obobboooboboobbb$
bobobboboboooobo$
obbobbbbbbbooobb$
bbooobbbbbobbobo$
oooobooobbobobbo$
oboobbboboobbboo!
Re: Thread for basic non-CGOL questions
Posted: June 19th, 2021, 11:41 pm
by FWKnightship
yujh wrote: June 19th, 2021, 11:09 pm
Again, how can I read this skew gutter soup?
Code: Select all
x = 16, y = 16, rule = B3-kq4z5e7c8/S2-ci3-a4ciq5ek6eik7
oobbboobbooobbob$
booooobbobboboob$
bbobobbbbbbboooo$
bbbooobbbboobbbb$
oboboooobobbbobb$
oobobobobbooobob$
bobobbobbbobobob$
oooboobbbboooobo$
bobbboooobbboobb$
oobboboobobbboob$
obobboooboboobbb$
bobobboboboooobo$
obbobbbbbbbooobb$
bbooobbbbbobbobo$
oooobooobbobobbo$
oboobbboboobbboo!
Code: Select all
x = 115, y = 17, rule = 012345678//3
98.2A3.2A2.3A2.A$2A3.2A2.3A2.A21.2A3.2A2.3A2.AB16.2A3.2A2.3A2.A16.5A
2.A2.A.A2.A$.5A2.A2.A.2A22.5A2.A2.A.A2B17.5A2.A2.A.A18.A.A7.A2.A$2.A.
A7.4A22.A.A7.A3B18.A.A7.A20.3A4.2A2.A$3.3A4.2A27.3A4.2A4B19.3A4.2A18.
A.A.4A.A3.A.2A$A.A.4A.A3.A22.A.A.4A.A.5B16.A.A.4A.A12.B7.2A.A.A.A5.A
2.A$2A.A.A.A2.3A.A8.B12.2A.A.A.A2.6B8.B7.2A.A.A.A15.B7.A.A2.A5.A3.A$.
A.A2.A3.A.A.A9.B12.A.A2.A2.7B9.B7.A.A2.A12.6B5.3A.2A9.A$3A.2A4.4A.A4.
6B10.3A.2A2.8B5.6B5.3A.2A17.B7.A3.2A4.2A$.A3.4A3.2A10.B12.A3.2A9B9.B
7.A3.2A15.B7.2A2.A3.A.A.A3.A$2A2.A.2A.A3.2A8.B12.2A2.A.10B8.B7.2A2.A
25.A.A5.2A.3A.2A$A.A2.3A.A.2A23.A.A2.11B16.A.A28.A.A3.A.A2.4A$.A.A2.A
.A.4A.A21.A.A12B17.A.A26.A4.A4.2A.A.A$A2.A7.3A22.A2.13B16.A35.A2.A2.A
.2A$2.3A5.A2.A.A22.14B46.A4.A.5A3.2A$4A.3A2.A.A2.A20.A15B16.A31.A.A.
2A.A.2A3.A$A.2A3.A.2A3.2A20.16B!
Code: Select all
x = 17, y = 16, rule = B3-kq4z5e7c8/S2-ci3-a4ciq5ek6eik7
2o3b2o2b3o2bo$b5o2bo2bobo2bo$2bobo7bo2bo$3b3o4b2o2bo$obob4obo3bob2o$2o
bobobo5bo2bo$bobo2bo5bo3bo$3ob2o9bo$bo3b2o4b2o$2o2bo3bobobo3bo$obo5b2o
b3ob2o$bobo3bobo2b4o$o4bo4b2obobo$6bo2bo2bob2o$o4bob5o3b2o$2bobob2obob
2o3bo!
Re: Thread for basic non-CGOL questions
Posted: June 25th, 2021, 3:04 am
by ColorfulGabrielsp138
Re: Thread for basic non-CGOL questions
Posted: June 25th, 2021, 3:33 am
by yujh
Re: Thread for basic non-CGOL questions
Posted: June 25th, 2021, 3:57 am
by ColorfulGabrielsp138
yujh wrote: June 25th, 2021, 3:33 am
Yes but the output, no
And can it be made into a Rule 110 unit cell?
Re: Thread for basic non-CGOL questions
Posted: June 28th, 2021, 5:39 pm
by breaker's glider gun
How do I make a rule? Like, I know you can just set the birth and death conditions, but I want to make "trolllife."
the states are as follows:
0, dead
1, Normal life live cell.
2, Life live cell that makes birthed cells in range 5 instead birth as it.
(and yes I have a troll planned)
Re: Thread for basic non-CGOL questions
Posted: June 28th, 2021, 7:07 pm
by yujh
breaker's glider gun wrote: June 28th, 2021, 5:39 pm
2, Life live cell that makes birthed cells in range 5 instead birth as it.
Not possible yet.
Re: Thread for basic non-CGOL questions
Posted: June 28th, 2021, 9:23 pm
by Aleph
Does the no spaceships with S0123 in totalistic rules thing apply to B2 rules?
Re: Thread for basic non-CGOL questions
Posted: June 28th, 2021, 10:46 pm
by breaker's glider gun
yujh wrote: June 28th, 2021, 7:07 pm
breaker's glider gun wrote: June 28th, 2021, 5:39 pm
2, Life live cell that makes birthed cells in range 5 instead birth as it.
Not possible yet.
I wanted to make a blinker that mysteriosly dissapears after some time - a cell type two glider (pure black) flies nearby.