« first day (2013 days earlier)      last day (2844 days later) » 

12:01 PM
@MᴀʀsUʟᴛᴏʀ I thought about that, but both z and zz correspond to 0 if interpreted as binary.
 
sandboxing this challenge now!
 
Ooooh wait...you can start at 2 and lop off the first character at the end.
 
Gotta go now, but that might be good enough to get a golfier way.
 
12:03 PM
why @flawr
 
@flawr y u do dis ;_;
 
@flawr wat srsly do you have a feed for plane crashes or something
 
hello
 
let's say I look at the uneven primes modulo 4
then they're all either 1 or 3
now I define a real number as an infinite binary number
 
12:05 PM
> gets value at index of A on number grid. Stores in A.
a is a float, does that mean that the memory should index on floats ಠ_ಠ
 
0.a1 a2 a3 a4 a5.... where a_n is 0 if the nth odd prime modulo 4 is 1, and 1 if the nth odd prime modulo 4 is 3
what does this real number look like in decimal?
the first few digits in binary are 0.10110....
 
Sandboxed
0
A: Sandbox for Proposed Challenges

Destructible WatermelonGolf an InterpretMe interpreter (in any language other than InterpretMe) This is a very simple challenge. An InterpretMe interpreter takes input, and runs an InterpretMe interpreter (which takes new input) as many times as "*" occurs in input. Note that the program does not necessarily have to ...

I included language other than interpret me because you know
 
0
A: Sandbox for Proposed Challenges

Sean BeanAlphabet Circle This post got very negative feedback, so it's apparent that it needs tweaking in the sandbox before I attempt to repost it on PCG With all the new alphabet xxx challenges, I've decided I'll give my own challenge. Input An Integer, (or your languages equivalent) r, such that 0 <

for this guy the Except Jelly is a joke ಠ_ಠ
 
I'm wondering if I should have sandboxed it?
 
@orlp For me it looks like around 0.7004001379657977
 
12:21 PM
i dun get interpret me
 
I have an unsolved comment on the "Peter Piper and the Peck of Pickled Peppers" challenge :(
I wish the words didn't come in the same chunks. The substrings "Peter Piper picked" and "peck of pickled peppers" are most of the text, and the rest has little structure: X a Y. A Y X. If X a Y, Where's the Y X? Is there another tongue-twister where the words are permuted more? — xnor Jul 27 at 1:21
 
Can some1 explain interpretme
 
@betseg just read the description of what an interpretme interpreter does
 
@DestructibleWatermelon i dun understand
 
1
A: Sandbox for Proposed Challenges

Destructible WatermelonGolf an InterpretMe interpreter (in any language other than InterpretMe) This is a very simple challenge. An InterpretMe interpreter takes input, and runs an InterpretMe interpreter (which takes new input) as many times as "*" occurs in input. Note that the program does not necessarily have to ...

 
12:24 PM
* runs an interpret me interpreter
or emulates one
example of an iterative implentation
i=1
while i:i+=sum(x=='*'for x in input())-1
 
@MᴀʀsUʟᴛᴏʀ same for mew
 
I think I can golf this more:
wait no I can't in the way I thought
 
edited the esolang page
 
Y randall haz no xkcd yet
 
@xkcd y u do dis ;_;
 
12:37 PM
All the nerds around globe R w8in
 
@betseg xkcd.com
latest comic: xkcd.com/1714
 
today is wednesday and there should be a new comic
 
@MartinEnder you're welcome! I apparently made it too hard, as I'm still waiting for answers
 
the title text is so true
 
Erm...
 
12:42 PM
?
 
> DO NOT MERGE
Merged
 
1:07 PM
@NathanMerrill it's definitely in risk of going unanswered before it's too late for HNQ ;) ... I've started on something but it still probably take a couple of days.
 
@TùxCräftîñg I was not the one to do that!
 
@MᴀʀsUʟᴛᴏʀ Not really one that I follow regularly, but there are quite a few (e.g. aviation-safety.net).
I just like plane and plane-related stuff. (e.g. the euclidean plane, the projective plane e.t.c)
 
-__________-
 
1:12 PM
Ever been on Aviation SE?
 
So what's with all the alphabet challenges lately
 
¯\_(ツ)_/¯
 
I guess it's at least something Brainfuck is good at, which is pretty rare
 
@BusinessCat to ask alphabet questions doesn't require much thinking
 
1:18 PM
0
A: Sandbox for Proposed Challenges

AdnanCan you outgolf me? cops-and-robbers Cops section Challenge Your task is to write 2 different programs that solve the same task1. One of those programs is shorter than the other. You only need to submit the longer program of the two. The other one needs to be saved in case of not being crac...

 
Also still no xkcd 1715 :|
Seriously question: does xkcd have 1713 comics? Because xkcd.com/404 doesn't exist.
 
@betseg xkcd 404 return a error 404
so yes xkcd have 1713 comics
 
But, in a sense, it's a comic
 
Did anyone ever use the OEIS superseeker?
 
1:26 PM
use what?
 
@flawr I haven't, but its a really cool concept
@TùxCräftîñg a program that tries really hard to figure out your sequence
 
@NathanMerrill Would you mind sending a sequence to superseeker for me? I always just get the helpfile back, which means it was unable to understand my request
 
1:47 PM
oh man
I have a challenge idea
but I fear it might be too complicated
but it's really cool
A hinged dissection, also known as a swing-hinged dissection or Dudeney dissection, is a kind of geometric dissection in which all of the pieces are connected into a chain by "hinged" points, such that the rearrangement from one figure to another can be carried out by swinging the chain continuously, without severing any of the connections. Typically, it is assumed that the pieces are allowed to overlap in the folding and unfolding process; this is sometimes called the "wobbly-hinged" model of hinged dissection. == History == The concept of hinged dissections was popularised by the autho...
given two polygons of equal area, return a hinged dissection that transforms one into the other
 
@orlp I also did think about this a while ago. The problems I saw were primarly the output verification. (And as you said, the algorithm itself is also not very easy)
 
@flawr sure. Any sequence, or a specific one?
 
i think i would take a long time to calculate
 
@NathanMerrill any two polygons
was my challenge idea
 
@NathanMerrill this one please 1,1,2,2,4,2,6,4,6,4,10,2,12,6,8,8,16,2
 
1:53 PM
oh
superseeker is the OEIS thing?
where it does stuff like drop terms, add +1/-1 to find sequences?
 
@orlp I don't know what it does but yes, it tries to explain the sequence with various means.
 
what is the origin of your sequence?
 
@orlp a mathy problem I'm working on=)
 
@flawr cmon
I NEED DETAILS
RAAH
 
(It's a problem from algebraic number theory, and this message is probably too short to explain.) in short: The sequence I found looks very much like the euler totient function, with a few exceptions.
And the actual computation is not quite trivial, and so far quite time consuming=)
@betseg Just interpret your number in base 9
@orlp Still need more info? It is about an invariant of the integral rings of cyclotomic number fields.
 
1:59 PM
2
A: Print a Tabula Recta!

MattBlissettEmacs, 47 bytes abcdefghijklmnopqrstuvwxyz^M ^P <F3> ^K ^K ^Y ^Y ^P ^<space> ^F ^W ^E ^Y ^A <F4> ^U 2 4 F4 Where ^P means "Control P", etc. That's 47 bytes, since the F3 and F4 keys require two ASCII bytes. After entering the starting input, it defines a keyboard macro to duplicate the line ...

emacs :3
 
@flawr 1310, pretty good one.
@TùxCräftîñg 8 megs and constantly swapping
 
@flawr I don't know what that means (I'll google), but I am familiar with the totient function
 
@TùxCräftîñg a joke about emacs...
 
I made it to 1k on SO!
 
2:02 PM
@DrGreenEggsandIronMan Congrats
 
My god. Can you live one day without spamming some utterly useless noise in the chat.
 
Jul 23 at 18:43, by Quill
Disrespecting your fellow chatters is not on. Spamming the room with noise will not be tolerated.
 
@TùxCräftîñg Yes. Especially you! Why do you keep doing this, if there's even a pinned message for that problem.
2
 
@orlp Not really, but it is an algebraic topic, so groupspop up everywhere.
 
@flawr en.wikipedia.org/wiki/Cyclotomic_field mentions Euler's totient (phi) function
 
2:09 PM
@orlp Yes, I know. The integral ring of the n-th cyclotomic number field seen as a Z-module has a basis of length phi(n)
So it is pretty natural for phi(n) to pop up, but the interesting thing here that this sequence is (so far) quite close to phi(n) but not exactly.
 
@flawr sent
 
@NathanMerrill thank you=)
 
@flawr I'm a bit confused though
from what I've read cyclotomic fields are an extension of the rationals by adding complex roots of unity
 
Exactly=)
 
@flawr but if you then look at integral rings inside them, how is that different from just the integers?
 
2:13 PM
Can we not use derogatory language please?
29 messages moved to Trash
 
Good thing I'm not angered.
 
Bah. I'm on my phone, and it automatically added a subject
 
Because I was away playing The Powder Toy / eating ice cream at the time. :3
 
My computer is updating
 
@orlp The integers of a algebraic number field are defined as the members of the field that have a monic minimal polynomial in Z[X]
And they form a ring, so this is just a generalization of the notion of integers Z in the ring Q to the integral ring inside Q(a) for some algebraic number a
 
2:16 PM
@flawr what is Z[X]? the polynomials with integer coefficients?
 
@orlp Exactly!
 
(sorry that's not really a googlable term, just had to guess)
 
@orlp Well if you're interested, I really recommend looking into algebraic number theory, it is a very nice topic!
 
I'm.. sort of interested but I'm repeatedly hit in the head by terminology
 
Well it always depends on the background, some abstract algebra, linear algebra and group theory is certainly helpful
 
2:19 PM
I'm lacking all three ;)
 
@orlp definition of those integers en.wikipedia.org/wiki/…
If you ever have any questions about it, feel free to ask=)
 
my only exposure to group theory is though finite fields in cryptography
and some in some encoding theory
 
@flawr my first email was to the wrong address, but I haven't gotten a reply yet to my second, which is promising
 
@NathanMerrill Cool, again thank you very much, I just didn't get it to work!
 
@flawr generally my interest fades when stepping beyond the bounds of the discrete into the real :)
 
2:22 PM
Were you sending it comma delimited?
It has to be space
 
@orlp dirty analysis right? I know
 
@flawr one day I should really look into fourier analysis, as it bridges the gap
 
@NathanMerrill Oh sorry, but yes, I did send it with spaces
 
Huh, dunno
 
@orlp Or Complex analysis, also a very nice subject, pops up again everywhere in number theory!
 
2:23 PM
but cryptography, most algorithms operating on integers and lists, coding theory, etc, etc all interest me a lot, but a lot of maths doesn't really (geometry, analysis, etc)
@flawr given that I generally feel more at home in computer science than maths :)
so you kind of baited me in with the totient function :P
 
ven
@DrGreenEggsandIronMan \o/
 
this is amazing to me
there are various amounts of ways of placing n circles in the plane that are inherently different
think venn diagrams
but circles can have different sizes
given those restrictions we only know how many different ways there are for 4 circles
5 is unknown
all arrangements for 4: oeis.org/A250001/a250001_1.pdf
 
ven
My diagrams best diagrams
 
2:42 PM
@orlp I'm confused. are circles being placed at integer locations? Two circles have an infinite number of ways of overlapping each other
oh, nevermind, I should have looked at the image
 
The Nineteenth Byte log, day 20160803: A homosexual person was suspended for being a homophobe.
 
I'm not sure I agree with some peoples' definition of spam in chat
I also think moving messages to the Trash is silly unless it's a lot of pictures or long messages
Why does there have to be drama?
 
Bothering and annoying other people is not on. If you have a problem following common sense, decency and respect for other chatters, then you're welcome to leave.
 
@Poke i clicked on "inappropriate", and it directed me to my "👬 unicode is gay" message
 
never heard "not on" used that way, i thought it was a typo for "not ok"
 
2:51 PM
It's not like people are nonsensically spamming. They were having a conversation. If it's bothering you, you can ask them to move to a private room.
 
"conversation"
2
 
Plastering the chat room with Unicode emojis is not a conversation.
 
I don't think that the 6 or so messages constitutes "plastering"
 
@betseg I'm really confused. Who got suspended?
 
@DrGreenEggsandIronMan me
 
2:53 PM
I'm mostly a lurker in this room and I have rarely seen what I would consider spam
I agreed with the 30 someodd pokemon pictures being moved a couple weeks ago
filled up multiple window-heights worth of chat history
 
@betseg oh. I thought it was tux who said "unicode is gay". I missed the flags.
 
6 emoji messages is a bit ridiculous in my opinion especially because emoji are supposed to be used to represent thoughts/feelings/emotion would could substitute/supplement chat
 
@Poke There were ~30 of them. It's not like this is the first time.
 
I wish there was a way to handle flags on mobile.
 
You got suspended because a message got flagged and validated as inappropriate
 
2:56 PM
29 messages were moved
not all 29 contained emojis
 
@Poke yes, that is definitely what was happening there
@EᴀsᴛᴇʀʟʏIʀᴋ This is not true
 
they probably decided just to nuke the whole conversation
@Doorknob sorry, TIL
 
i don't think there was value in nuking that conversation
 
@betseg Your message didn't include the emoji. When users handle flags, they only see that message.
@Poke I don't think there was value in having that conversation.
 
Which IMO is kinda dumb ^^
 
2:57 PM
@DrGreenEggsandIronMan Nice! I hit 1500 yesterday.
 
@Doorknob I won't disagree but I see people complain about more that just this specific conversation
@Dennis This is a chatroom, man. This is for general discussion
Not trying to burn bridges here. Just stating my opinion
 
> This site is an extension of The Stack Exchange Network, so discussion should more or less revolve around the same topics you'd find at The Stack Exchange Network — but in an interactive, less strictly Q&A focused way. Do have fun, but please keep it professional and always be respectful of your fellow community members.
 
30 emojis in a row is not what I'd call "a discussion"
 
@Poke Emoji != Conversation
 
burning bridges sounds like fun. where are these bridges
 
2:59 PM
It is not for general discussion. If that's what you want, go to IRC or Slack.
 
@Poke General discussion for codegolf.stackexchange.com. Yes, we get a bit off topic from time to time, but there's a limit.
 
out of curiosity, do chat guidelines originate from the community?
 
@DrGreenEggsandIronMan It wasn't 30 in a row. that's just how many messages were removed from the chat's history
 
@MitchSchwartz London Bridge (is falling down)
 
@MitchSchwartz There's a chatroom called "the bridge". I bet they would know.
 
3:00 PM
Spam is different from off-topic conversation. That's my point
 
@Poke Go look at the messages. They're useless.
 
@NathanMerrill I don't think that's an answerable question by a yes or no, I suppose a better answer is: It's Complicated
 
nice free association keep it up
 
@Poke But off-topic conversation is also trash-worthy. It doesn't have to be spam to get deleted.
 
@mbomb007 and I feel like it could have been handled more appropriately by asking them to move to a different room
 
3:01 PM
woah, two messages got mixed there
 
I feel that integrity of chat history is more important than removing off-topic conversation
unless it is actually spam
 
@Quill If the community were to come up with a rule that we want enforced in chat, are mods then obligated to enforce that rule (like the are on the main site)?
 
@Poke Disagree. If it's not useful for this room, it should be cleaned. Aka, moved to the trash, so we don't have to look at it.
 
i think most people disagree then
 
(maybe obligated is too hard of a word)
 
3:02 PM
well I humbly disagree as it's not a hard line what is and is not useful for the room
 
@Poke Chat history for moved messages are kept in the Trash room. So that's not an issue.
 
@mbomb007 but as I read the scrollback the only indication that messages were moved is after the conversation was already over a lot of the time
 
@Poke Maybe not, but go and look at those moved messages. They are objectively not useful for this room.
 
@NathanMerrill I think it depends on the rule. If the rule was "all messages shall contain avacados", I don't think they would enforce it.
 
right, but the community wouldn't make that rule in the first place
 
3:04 PM
@NathanMerrill I guess I have the same answer, "it's complicated". we try our best to stick with "popular consensus + be nice policy". Site policies aren't usually as conflicting as chat policies
 
if we did, we'd all have a really good reason
 
Messages that are entirely Unicode symbols are spam. Messages that are sentences about how ridiculous some Unicode symbols are aren't really spam.
 
@NathanMerrill Yeah, avacados are gross.
2
 
Not particularly useful, but not spam
 
I just don't recall all this drama over people "spamming" a few months ago. Seems some people have gotten a bit sensitive to it lately
I could be wrong
 
3:05 PM
@Poke its likely my fault. I made a meta post :)
but that said, @El'endiaStarman was finding some data that the level of spam has gone down over the past couple of months
(where are you at on that?)
 
@MartinEnder Thanks, this is exactly what caused the problem. It's fixed in GitHub now.
@Dennis Could you pull Jellyfish?
 
@Poke Site improvement is always welcome, hence why we're improving TNB by lowering the amount of spam and off-topic content that is allowed/tolerated.
 
@Zgarb thanks :)
 
@Poke You are. It has been mentioned multiple times by many people now that the spam almost exclusively originates from a very specific set of people. These people have been increasing their noise level constantly over the past few weeks.
 
@Zgarb Done.
@Adnan Done.
 
3:09 PM
Thanks!
 
@Zgarb is there an operator to turn a binary f into a unary f(a,a)?
 
@MartinEnder Yes, & should do that.
 
for those that know syntax of functional languages, how do they represent currying?
(and uncurrying, for that matter)
 
Depends on the language.
 
right, I'm just looking for examples
 
3:14 PM
@Zgarb oh that's what you mean by "swap arity"
 
Haskell has automatic currying, so f x y is the same as (f x) y
In J, to curry a binary function f with value x, you do f&x or x&f, depending on which argument you want to fix.
 
wait, I'm confused. Lets say I want to curry multiply (which takes two arguments)
lets say, with the value of 3
how would you return a function that multiplies any value of 3
 
@Zgarb jellyfish.tryitonline.net/… primality test by Wilson's theorem. I wonder though if there's a way to use less of that annoying whitespace.
 
@NathanMerrill In Haskell, that would be (*3), because * is an infix operator. If it was a function mult, you'd just do mult 3.
In J, you do *&3.
 
ok, and what if you wanted to curry the last argument?
or a middle argument?
 
3:19 PM
Well (*3) curries the second argument, and (3*) the first. For J, they are *&3 and 3&*. If you want to curry the third argument, you need to use a lambda of something in Haskell: \x y -> f x y z. In J, all functions take at most 2 arguments so that's not an issue.
 
@Zgarb and if * was a function mult?
 
@NathanMerrill Then mult 3 curries the first argument. For the second, you either use a lambda, or convert the function to infix form by (`mult` 3).
 
ok, thank you!
 
No probs. Are you using this for something?
 
language design :)
oh, one other question. If I wanted to take a 1 argument function and turn it into a 0-argument function
 
3:23 PM
@NathanMerrill There are no 0-argument functions in Haskell or J.
 
ah, interesting
 
@MartinEnder Nice! I wonder if you could replace the &* by unary * after MODing by the input.
 
I'm not making a purely functional languages, but functional programming will be highly supported (and will provide a bunch of benefits)
 
@NathanMerrill You said it didn't work, right?
 
@flawr hmm...I never got a response
 
3:26 PM
@Zgarb I think that doesn't work for input 1?
 
@MartinEnder Yeah, and it also fails for 4...
 
3:36 PM
halp vim dont support Rust
 
@NathanMerrill When I sent it from my e-mail program, I always got the help file, now I had the idea to try it directly fromt he browser interface, and I also didn't get a response so far. But hope dies last=)
 
I'm guessing that its working on the problem (or its in the queue)
 
@xkcd yay \o/
 
@Zgarb I tried avoiding the need for E by creating a unary function with a hook and &, but it ended up longer due to the need for all that composition: jellyfish.tryitonline.net/…
 
3:40 PM
@NathanMerrill Let's see=)
 
@MartinEnder Yeah, I thought it would.
 
Oh BTW @TùxCräftîñg console vim does support unicode pretty well. If it's not working, there's probably some way to fix it.
 
or switch to gvim
 
Now I'm curious: what is the usual cost and cleanup of fresh air?
 
@NathanMerrill I've got an answer, yay!
 
3:42 PM
but with gvim i dont have a terminal at the right of the editor :/
 
@flawr anything?
 
@BusinessCat I think the cost and cleanup is referring to creating a hole in the wall.
 
I use gvim on windows, console on linux. What os are you on?
 
@DrGreenEggsandIronMan windows
 
bash is installing...
 
3:43 PM
@NathanMerrill Nothing useful for me which is on the one hand bad, but on the other hand it might suggest that I'm on something new-ish.
 
Oh, that explains it. Console vim sucks in windows.
 
That's a perfectly logical way to get fresh air
 
You could try git bash, which might be better, or you could try gui neovim (which has a terminal built in)
But I will warm you, neovim is a pain in the ass on windows.
 
...or windows linux subsystem :)
 
@NathanMerrill Thanks again fro your help. If you're interested here is what it answered
 
3:45 PM
@NathanMerrill Do you like the WSL? For some reason I never felt comfortable in it.
 
@DrGreenEggsandIronMan I'm in the middle of installation, I can't say
@flawr there's a whole lot to parse there
 
Oh, nice! Let me know what you think of it
 
er, why are certain folders green?
the color scheme is terrible
 
halp windows sucks
 
3:49 PM
@DrGreenEggsandIronMan have you tried apt-get?
ah, nevermind, I was just getting a warning, not an error
 
This is the number of spam/noise messages per user that have been manually moved to trash by a moderator. This excludes messages posted in, but not moved to trash as well as non-spam messages that got lost.
 
i was using MSYS's bash >_>
switching to the git one fixed unicode
 
CMC: Given a single line string, put a box around it. For example, the string "hello world" should output this
 
rld |
---------------
<troll>your code dont work well</troll>
 
@DrGreenEggsandIronMan there seems to be a lot of delay :/ I have a fairly large repo, which takes 5-10 seconds to git status, but I'm hitting about 60 seconds on ubuntu
 
3:52 PM
@TùxCräftîñg it's not code, it's example output.
 
@DrGreenEggsandIronMan Related.
 
@TùxCräftîñg actually, now that I think about it, I get why it does that, haha.
 
the signal to noise ratio in this chat is like 100000:1 what's all this fuss
 
3:54 PM
0
A: Sandbox for Proposed Challenges

BlueConvert index to hexagonal coordinates In Martin Ender's language Hexagony, the inputted program in stripped of whitespace, padded with no-ops until is becomes a Centered Hexagonal Number, then assigned axial coordinates. Your job is to, given the size of the hexagon and an index, return the ax...

 
🏁 🍇 😀 🔤Hello, World!🔤 🍉 <-- Emojicode
 
@betseg if i get vundle working i will create a interpreter
but i need the specs
 
V, 13 bytes: ys$ |3ÄÒ-jjÒ-
It should be 12. jj should be G
 
$ git clone github.com/VundleVim/Vundle.vim.git ~/.vim/bundle/Vundle.vim
bash: git: command not found
 
I guess that's a bug.
 
3:58 PM
@TùxCräftîñg maybe the project helps github.com/emojicode/emojicode
 
ah cool
> Emojicode is an open source, high-level, multi-paradigm programming language consisting of emojis.
ah
wtf
 

« first day (2013 days earlier)      last day (2844 days later) »