ConwayLife.com - A community for Conway's Game of Life and related cellular automata
Home  •  LifeWiki  •  Forums  •  Download Golly

Things You've Been Doing Other Than CGoL

A forum where anything goes. Introduce yourselves to other members of the forums, discuss how your name evolves when written out in the Game of Life, or just tell us how you found it. This is the forum for "non-academic" content.

Re: Things You've Been Doing Other Than CGoL

Postby gameoflifemaniac » May 11th, 2017, 9:58 am

I actually didn't lose my stats!
EDIT: And not banned!
Last edited by gameoflifemaniac on May 13th, 2017, 3:46 am, edited 1 time in total.
gameoflifemaniac
 
Posts: 137
Joined: January 22nd, 2017, 11:17 am
Location: Somewhere between Venus and Mars

Re: Things You've Been Doing Other Than CGoL

Postby Mr. Missed Her » May 12th, 2017, 8:35 pm

I downloaded this wonderful program called Space Engine. It's interesting (since astronomy/astrophysics in general are interesting), and you can have fun flying spaceships around. Now I just need to learn how to avoid crashing into planets so much. (It turns out "autopilot" is really just "automatic crashing into selected object.")

I wonder if autopilot even attempts to reach the future position of the planet, instead of just going straight towards the object and then having to keep readjusting to keep heading straight towards it.

Edit:
spaceship yay.png
'Bout 5 G's of acceleration, or 0 with the other (retro) engines turned on too.
spaceship yay.png (75.58 KiB) Viewed 239 times
There is life on Mars. We put it there with not-completely-sterilized rovers.
And, for that matter, the Moon, Jupiter, Titan, and 67P/Churyumov–Gerasimenko.
User avatar
Mr. Missed Her
 
Posts: 90
Joined: December 7th, 2016, 12:27 pm
Location: Somewhere within [time in years since this was entered] light-years of you.

Re: Things You've Been Doing Other Than CGoL

Postby drc » May 14th, 2017, 11:28 pm

Got one of my friends to be my pondlife apgsearch slave :P . They can search 5x faster than I can.
EDIT: Actually it's something like 10x but I can't accurately measure
Last edited by drc on May 14th, 2017, 11:34 pm, edited 1 time in total.
pondlife=salad+butterfly
User avatar
drc
 
Posts: 1074
Joined: December 3rd, 2015, 4:11 pm
Location: creating useless things in OCA

Re: Things You've Been Doing Other Than CGoL

Postby Saka » May 14th, 2017, 11:31 pm

drc wrote:Got one of my friends to be my pondlife apgsearch slave :P . They can search 5x faster than I can.

:lol: I have never done something like that before! How cruel! :lol:
I also got my friends interested in CA once. He played around in the Star Wars rule and found a cool ship. If you download my files on the Star Wars thread you can find it. (Hint: His name is Myles)
Nice waterbear you got there. Would be a shame if this rake shot it down from the other side of the universe.
User avatar
Saka
 
Posts: 1167
Joined: June 19th, 2015, 8:50 pm
Location: Who Cares?

Re: Things You've Been Doing Other Than CGoL

Postby drc » May 14th, 2017, 11:36 pm

Saka wrote: :lol: I have never done something like that before! How cruel! :lol:
I also got my friends interested in CA once. He played around in the Star Wars rule and found a cool ship. If you download my files on the Star Wars thread you can find it. (Hint: His name is Myles)

Well that is very nice, here's to hoping something doesn't screw up with catagolue, since my friend is asleep.

EDIT: I'm also trying to teach him about the general CGoL-sphere, it's coming along a bit slowly. Anybody have good beginner guides?"
pondlife=salad+butterfly
User avatar
drc
 
Posts: 1074
Joined: December 3rd, 2015, 4:11 pm
Location: creating useless things in OCA

Re: Things You've Been Doing Other Than CGoL

Postby muzik » May 17th, 2017, 7:13 pm

Been thinking about geometry lately.

Since you can create a great dodecahedron from 12 intersecting pentagons, is there such thing as a "great cube"? This would consist of 6 squares, linked together to form a shape like some sort of excavated octahedron (sharing the same vertex and edge arrangement just like the great dodecahedron does the icosahedron). It probably wouldn't be very regular though since the squares would be directly overlapping each other.
Last edited by muzik on May 18th, 2017, 6:52 pm, edited 1 time in total.
Image This jump is annoying. Let's fix it.

Turn all the reds, green!
muzik
 
Posts: 1616
Joined: January 28th, 2016, 2:47 pm
Location: Scotland

Re: Things You've Been Doing Other Than CGoL

Postby gameoflifeboy » May 17th, 2017, 7:48 pm

muzik wrote:Been thinking about geometry lately.

Still nice you can create a great dodecahedron from 12 intersecting pentagons, is there such thing as a "great cube"? This would consist of 6 squares, linked together to form a shape like some sort of excavated octahedron (sharing the same vertex and edge arrangement just like the great dodecahedron does the icosahedron).


Yes, you can create something like this. It wouldn't be a true polyhedron, though, as the squares would come in three overlapping sets of two. It is a degenerate polyhedron, but it still fulfills the basic rule that two faces meet at an edge. In fact, it is a compound of three square dihedra.

It probably wouldn't be very regular though since the squares would be directly overlapping each other.


No, it would be perfectly regular. The cubic symmetry group of transformations allow any face to be mapped onto every other face in 8 ways, equal to the order of symmetry of the faces. There are also four ways to map an edge onto each other edge, and 8 ways to map each vertex of valence 4 (which is actually two coinciding vertices) onto each other vertex. This means that this is a truly regular compound, and in fact the square dihedra can be replaced by cubes (as square prisms) or even octagonal prisms and the resulting figure will still be vertex-transitive, if also coincidic.
https://catagolue.appspot.com/user/EricABQ
#C [[ THEME 6 AUTOFIT ]]
x = 37, y = 8, rule = B/S012345678
bobobo2bobobobo2bobobobobobo2bobobo$2b2o2bo2b2o2b2o3b2o4b2o2bo2b2o2bo$
4b3o8bo4b2o4b3o4b3o$7b4o25bo$11b5o$16b6o$22b7o$29b8o!
User avatar
gameoflifeboy
 
Posts: 404
Joined: January 15th, 2015, 2:08 am

Re: Things You've Been Doing Other Than CGoL

Postby muzik » May 18th, 2017, 8:31 pm

and the "great octahedron" would just be the same as the stellated octahedron/compound of two tetrahedra, right?
Image This jump is annoying. Let's fix it.

Turn all the reds, green!
muzik
 
Posts: 1616
Joined: January 28th, 2016, 2:47 pm
Location: Scotland

Re: Things You've Been Doing Other Than CGoL

Postby gameoflifemaniac » May 19th, 2017, 1:03 pm

Made a long time ago a sine calculator in GD! ID: 33013776
gameoflifemaniac
 
Posts: 137
Joined: January 22nd, 2017, 11:17 am
Location: Somewhere between Venus and Mars

Re: Things You've Been Doing Other Than CGoL

Postby Saka » May 21st, 2017, 5:30 am

I accidentally found a googlewhack when misspelling a plant species: "asplenium aleutiXXXcun" like A for Awesome said, the XXX is for preventing this page to come up.
Nice waterbear you got there. Would be a shame if this rake shot it down from the other side of the universe.
User avatar
Saka
 
Posts: 1167
Joined: June 19th, 2015, 8:50 pm
Location: Who Cares?

Re: Things You've Been Doing Other Than CGoL

Postby muzik » May 21st, 2017, 5:40 pm

Another geometry related thought: would the star polygon {4/2} be a compound of two digons, or a square stellated to infinity as in the tetrahemihexacron?
Image This jump is annoying. Let's fix it.

Turn all the reds, green!
muzik
 
Posts: 1616
Joined: January 28th, 2016, 2:47 pm
Location: Scotland

Re: Things You've Been Doing Other Than CGoL

Postby gameoflifeboy » May 22nd, 2017, 12:46 am

muzik wrote:Another geometry related thought: would the star polygon {4/2} be a compound of two digons, or a square stellated to infinity as in the tetrahemihexacron?


Under common usage, {(n*a)/(n*b)} (where n, a, b are integers, and a and b are coprime) is commonly used to represent a compound of n a/b-gons (in this case, n = 2, a = 2, and b = 1, so it is a compound of 2 digons as you said) but a more professional notation, used here uses {(n*a)/(n*b)} to represent a different shape, an {a/b}-gon that closes after reaching the starting point n times. To visualize this for {6/2}, imagine drawing a triangle but continuing past the starting point and tracing each edge again before closing. The finished figure has six edges that overlap in three pairs. {4/2} would be a similar thing, a doubly-wound digon.

So to answer your question, {4/2} technically represents neither of the things you said, but it could be used to represent the compound of two digons under a casual interpretation. Many of your questions seem to relate to how naming systems (describing similarities between shapes) should get extended to cover unconventional cases which, while a fun exercise, usually produces the best results when you open your mind to the exact algorithm the naming system uses and apply it in the most literal way possible. Sometimes there is more than one way to do this; I prefer the notation I described as "technical" because it considers the shape topologically and only makes the edges the same length as an afterthought.

About the infinite stellation, I'm not as partial to this one because it requires the definition of vertices at infinity. I'm rather uncomfortable with the duals of hemipolyhedra for the same reason. I still never really tried to visualize the tetrahemihexacron, mostly because the 6 infinite extensions that only describe 3 vertices confuse me.
https://catagolue.appspot.com/user/EricABQ
#C [[ THEME 6 AUTOFIT ]]
x = 37, y = 8, rule = B/S012345678
bobobo2bobobobo2bobobobobobo2bobobo$2b2o2bo2b2o2b2o3b2o4b2o2bo2b2o2bo$
4b3o8bo4b2o4b3o4b3o$7b4o25bo$11b5o$16b6o$22b7o$29b8o!
User avatar
gameoflifeboy
 
Posts: 404
Joined: January 15th, 2015, 2:08 am

Previous

Return to The Sandbox

Who is online

Users browsing this forum: No registered users and 1 guest