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01:10:03 <esolangs> [[Ternary]] M https://esolangs.org/w/index.php?diff=104672&oldid=50898 * PythonshellDebugwindow * (+63) /* External resources */ Categories
01:24:07 <int-e> Bonfire Peaks has a free demo on steam... been playing it. As far as I can make out, it has 28 levels, one of which is impossible ;-) (well, I haven't solved it yet)
01:29:42 <shachaf> Hmm, I haven't played it since I got back home, but I think I had 28 solved levels.
01:30:22 <shachaf> I didn't really get stuck, though, I don't think I even looked at all the reachable levels.
01:30:36 <shachaf> Which one is impossible?
01:30:43 <shachaf> I think I'd just gotten to the water area.
01:32:32 <int-e> Crate Expectations, https://int-e.eu/~bf3/tmp/ce.jpg ...I suppose I'll figure it out eventually.
01:34:27 <int-e> does the full game do anything interesting with the decorations, like the car fairly early on?
01:50:46 <shachaf> I'm not sure, I don't think I've done much more than you!
01:52:27 <int-e> the water
01:52:39 <int-e> oops. the demo ends at a bridge near a waterfall
01:53:33 <int-e> and probably misses some harder to reach areas before that. (I've identified one overworld puzzle but it just leads to some suspiciously empty blocks)
01:55:13 <int-e> empty blocks... and area, cf. https://int-e.eu/~bf3/tmp/space.jpg
02:18:56 <int-e> Okay, I figured it out... easy in retrospect.
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04:01:11 <zzo38> Why was my computer making noise? It seems to be something in the back of the computer. It was making a lot of noise so I cleaned it, and then it was making less noise for a few minutes except some clicking, and now it is making more noise again. The temperature is less than it was before I cleaned it, though.
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13:34:37 <esolangs> [[Alphaton]] https://esolangs.org/w/index.php?diff=104673&oldid=104320 * ColonelMatthew97 * (+130)
13:37:21 <esolangs> [[Alphaton]] https://esolangs.org/w/index.php?diff=104674&oldid=104673 * ColonelMatthew97 * (+24)
13:37:40 <esolangs> [[Alphaton]] https://esolangs.org/w/index.php?diff=104675&oldid=104674 * ColonelMatthew97 * (-2)
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15:46:50 <esolangs> [[Special:Log/newusers]] create * Fasolcabra * New user account
15:49:54 <esolangs> [[Esolang:Introduce yourself]] M https://esolangs.org/w/index.php?diff=104676&oldid=104633 * Fasolcabra * (+224) /* Introductions */
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16:08:47 <esolangs> [[Special:Log/newusers]] create * Asdfqwerguy * New user account
16:09:14 <esolangs> [[Pythile]] N https://esolangs.org/w/index.php?oldid=104677 * Someone668 * (+284) Created page with "'''Pythile''' is a esoteric programming language that is a mix of [https://en.wikipedia.org/wiki/Python_(programming_language) Python] and a [https://en.wikipedia.org/wiki/File_system file system]. There is no compiler for the language and it has no real purpose. PLE
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20:36:25 <b_jonas> `olist 1270
20:36:27 <HackEso> olist <https://www.giantitp.com/comics/oots1270.html>: shachaf oerjan Sgeo FireFly boily nortti b_jonas
20:36:44 <int-e> `unlist
20:36:44 <HackEso> unlist? No such file or directory
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23:29:22 <shachaf> Huh, wait a minute. You can do n+p linear codes where n+p is bigger than the number of points in your field?
23:32:17 <int-e> BCH codes over GF(2^m) are linear codes over GF(2)
23:33:05 <int-e> or is that wrong?
23:33:16 <int-e> nah, that's right
23:33:34 <shachaf> Hmm, so there's certainly an upper bound to the number of parity shards you can generate, right?
23:33:51 <shachaf> If you have a systematic code and your shards are one bit each, then you can only generate one parity shard.
23:34:02 <int-e> also, replication is a linear code
23:34:44 <shachaf> That's true. I guess I mean if you have more than one data shard.
23:35:01 <shachaf> There's no n+2 code (linear or otherwise) where your shards are single bits.
23:36:06 <int-e> heck, padding with 0s is a linear code.
23:36:17 <int-e> it won't do you any good for error detection or correction
23:36:41 <shachaf> Yes, I mean an erasure code where any subset of n shards will let you recover the data.
23:38:23 <shachaf> But I'm still confused.
23:38:47 <shachaf> Maybe because I was thinking in terms of fitting a polynomial?
23:39:12 <int-e> So, we're talking about nk + 2k, k being the shard size? And we're asking how big k has to be?
23:39:18 <shachaf> I have a linear 3+3 erasure code over GF(4), i.e. a 6x3 matrix where every subset of 3 rows is invertible.
23:40:07 <int-e> For a BCH code you clearly need 2^k >= n+2 here.
23:40:10 <shachaf> (And where the first 3 rows are the identity matrix, i.e. it's systematic.)
23:41:13 <int-e> Hmm, never mind the identity matrix for now.
23:41:24 <shachaf> Right, that bit isn't critical.
23:41:47 <shachaf> The point is that any choice of 3 rows is linearly independent.
23:47:50 <int-e> So divorcing this from the field... we can replace the field elements by kxk matrices? So encoding becomes multiplication by a matrix with nx(n+2) block of size kxk?
23:49:17 <int-e> Not sure whether that view is any help at all.
23:54:01 <int-e> Oh, however... the existence of an 1+2 code (trivial as that may be) shows that BCH codes do not tell the full story.
23:55:54 <shachaf> Do BCH codes give you an n+1 code for any n?
23:56:33 <int-e> They don't do that either.
23:57:13 <shachaf> Right.
23:59:00 <int-e> I guess "nk + 2k" is bad notation for denoting sharding... maybe a better notation would be (n + 2)k. The point is... we're picking subsets from whole shards.
23:59:07 <int-e> s/from/of/
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