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[-] Zehzin@lemmy.world 189 points 2 years ago* (last edited 2 years ago)

You got nothing on the 17 square packing

[-] OrnateLuna 22 points 2 years ago
[-] Enkers@sh.itjust.works 72 points 2 years ago* (last edited 2 years ago)

This is the most efficient (known) packing of 17 unit squares inside a square. If you're asking why it's like that, that's above my math proficiency level.

https://en.wikipedia.org/wiki/Square_packing

See also: https://kingbird.myphotos.cc/packing/squares_in_squares.html

[-] Colonel_Panic_@lemm.ee 9 points 2 years ago

It's like that because the universe wants us to suffer.

[-] MisterFrog@lemmy.world 3 points 2 years ago

If God was real / or is real and cared, we would have a perfect 336 day year.

[-] Colonel_Panic_@lemm.ee 1 points 2 years ago

If God was real the boxes would all fit in a nice grid for any square container. But the OP already has the conclusion for that one.

[-] tooLikeTheNope@lemmy.ml 8 points 2 years ago

Thanks I've lost 30 sanity points now, and I'm now sure with a number of squares sufficently high s is gonna equal to cthulu.

[-] Artyom@lemm.ee 33 points 2 years ago

We've figured out optimal packing methods for any number of squares inside a big square. When a number is below and near a square number like 15, you just leave an empty box, but when it's far from the next square number, you'll be able to pack them more efficiently than just leaving empty squares around. Turns out this kind of stuff is hilariously hard to prove that it's the most efficient method.

[-] jordanlund@lemmy.world 40 points 2 years ago
[-] Zagorath@aussie.zone 53 points 2 years ago

This is about the most efficient way to pack that number of circles. By looking at the bottom row of the 49, you can see that it's slightly less wide than 7 diameters, because it has 5 circles at the very bottom (taking up 5 diameters of width), but two are slightly raised, which also means they're slightly inward.

[-] hsdkfr734r@feddit.nl 34 points 2 years ago* (last edited 2 years ago)

How?

Yes, if you push the circles down a bit, it forms a 7 by 7 matrix. But if pushing the circles into a square matrix is not allowed: how?

Edit: I get it now. It is about (efficient) packing not about counting. I also get the 4th panel now...

[-] magic_lobster_party@kbin.run 65 points 2 years ago

7 by 7 matrix isnโ€™t the optimal packing. The square shown is slightly smaller than 7 by 7.

[-] hsdkfr734r@feddit.nl 8 points 2 years ago* (last edited 2 years ago)

Thanks. I thought it was about counting. It all makes a lot more sense now. (And it also doesn't.)

[-] mexicancartel@lemmy.dbzer0.com 8 points 2 years ago* (last edited 2 years ago)

Yeah it can fit almost 7 in a line in the last panel so theese definitely aren't the same squares(or circles)

[-] apotheotic@beehaw.org 20 points 2 years ago* (last edited 2 years ago)

These are optimal packings of n circles in a square container of the smallest size that will contain them

[-] mexicancartel@lemmy.dbzer0.com 9 points 2 years ago

So it is fitting the 49 in smallest square and not fitting as many circles as possible in given square? Okay that makes sense

[-] apotheotic@beehaw.org 7 points 2 years ago
[-] datelmd5sum@lemmy.world 30 points 2 years ago* (last edited 2 years ago)

I mean it makes sense when you think about how the circles arrange in an infinte square and e.g. 4r square. There has to be some fuckery between the perfect packing and the small square packing. You can see a triangle of almost perfect packing in the middle of the 49 circle square, surrounded by fault lines in the structure and then some more good packing, and garbage in the bottom.

slightly related Steve Mould video

[-] Maggoty@lemmy.world 3 points 2 years ago

Or, they could do 6x8 with one obviously extra at the end. But this is a funny not a rational thing.

[-] helpImTrappedOnline@lemmy.world 9 points 2 years ago

Should have used hexagons

[-] sabreW4K3@lazysoci.al 8 points 2 years ago
[-] Tolookah@discuss.tchncs.de 76 points 2 years ago

Science is applied math, engineering is applied science, manufacturing is applied engineering, etc. it's math all the way down.

[-] zarlin@lemmy.world 41 points 2 years ago
[-] fossilesque@mander.xyz 20 points 2 years ago* (last edited 2 years ago)

Math and philosophy are basically interchangeable here. I know there's a maths version I saved somewhere. ๐Ÿ˜…

[-] OrnateLuna 2 points 2 years ago

I mean without philosophy there is no math

[-] fossilesque@mander.xyz 2 points 2 years ago
[-] OrnateLuna 1 points 2 years ago
[-] Natanael@slrpnk.net 1 points 2 years ago* (last edited 2 years ago)

Math and formal logic are effectively equivalent and philosophy without conditional logic is useless. Scientifically useful philosophy is just "explorative logic" or something like it

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[-] barsoap@lemm.ee 1 points 2 years ago

Without computation there's neither which is why CS always wins.

[-] ogeist@lemmy.world 33 points 2 years ago

always_has_been.jpg

[-] smeg@feddit.uk 7 points 2 years ago

We've got !mathmemes@lemmy.blahaj.zone for maths but it's a bit quiet compared to here

[-] sabreW4K3@lazysoci.al 3 points 2 years ago

Quality over quantity! ๐Ÿ˜‰

[-] JimSamtanko@lemm.ee 3 points 2 years ago

I think you forgot the /s

[-] Tlaloc_Temporal@lemmy.ca 3 points 2 years ago

The study and discovery of mathematics is, yes.

[-] _different_username@lemmy.world 7 points 2 years ago
[-] veganpizza69@lemmy.world 6 points 2 years ago* (last edited 2 years ago)

This is the kind of stuff the timber mafia needs to know so that they can efficiently pack trees and send them to IKEA.

this post was submitted on 26 Jun 2024
585 points (100.0% liked)

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