The Nineteenth Byte

hahahaha

Oh hey, that's our same Nathaniel, the one who did Starry Night.

Quotes pedanticism and italicizes pedantry? -1 pedant score.

Anonymous

@AlexA. Nathaniel van Gogh?

Yes

Goodbyyyyyyyyyyyye moon man

Liam

shwifty

2:04 AM

"Get Shwifty" was a jam.

Justice - Civilization (Official Video)

►

Anonymous

@AlexA. I have no idea what any of the words in your challenge mean

2

Uh, do formula...

Cameron Aavik

@Mego basically, input is a list of data that represents some value measured at a specific interval

Anonymous

I am not a stats person

Q: A Free Sample of Autocorrelation

2:14 AM

So take an array, call it x.

Have x = [-2, -1, 0, 1, 2].

Anonymous

You mean a list :P

New Main Posts

0

Consider a 1-dimensional, real-valued vector x that represents observations of some process measured at equally spaced intervals over time. We call x a time series. Let n denote the length of x and denote the arithmetic mean of x as x̄. The sample autocovariance function is defined as for al...

Say we want h = 2, so the 2-lag of x. You use [-2, -1, 0] with [0, 1, 2].

Anonymous

2lag4me

You did the correlation coefficient challenge, right?

This is similar to the correlation coefficient, but you compute it on the array with itself, shifted back by some amount.

Anonymous

2:18 AM

Ahh that makes more sense

Cameron Aavik

@AlexA. in your example, you have input as n, x. do you mean h, x?

Yes I did, thanks!

I'm trying to think of a way to do a "xuffling" challenge.

Is that like huffing paint?

like xorting, but shuffling

2:19 AM

xsnor

@PhiNotPi ( ͡+1 ͜ʖ ͡+1)

Sounds interesting

A: Sandbox for Proposed Challenges

0

Implement an SR NOR latch with Life-like rules In Conway's Game of Life, there exist meta-pixels that can have any Life-like rule. Consequently, it is possible to simulate Conway's Game of Life with itself. It is also possible to build circuit-like structures, such as wires and logic gates. For ...

Cameron Aavik

so far I have 147 bytes @AlexA.

on Python 3

@AlexA. those are getting out of hand

@El'endiaStarman I saw your wire-crossing.

2:23 AM

@AlexA., @quartata, @Geobits, see the Sandbox post above ^^^^.

@PhiNotPi :D

@Calvin'sHobbies ( ͡✋ ͜ʖ ͡✋)

@CameronAavik Nice!

New Sandboxed Posts

YAMS HAVE A FUNNY NAME

6

@NewSandboxedPosts awaits edit about cake or pickles or something

2

dang, too late

Now it's a shame that New Sandboxed Posts didn't mention anything about cake or pickles.

It doesn't quite match the dimensions I was hoping for (a square, with one connection on each side)

It's really nice that it is lagless though.

2:25 AM

@PhiNotPi Ah, you wanted it in the shape of a cross? Yeah, that's a challenge.

mbomb007

@CᴏɴᴏʀO'Bʀɪᴇɴ My internet connection was as flawless as can be. Ethernet at work.

The cross shape would allow it to be represented as a single "meta-meta tile" for the next stage of abstractions.

So far all of the other gates are square and lagless.

uh-huh

Want to make a separate chat room for discussing this?

sure

(I was expecting you to make one, but I guess I will now)

Just made one.

2:29 AM

okay

The Quest for Tetris

For discussing this: goo.gl/kuCiRF | VarLife: goo.gl/StrPLC |...

I was gonna call it "The Quest for Tetris"

I like that a lot more.

Hey guys, is the use of Lodash disallowed in JS submissions? codegolf.stackexchange.com/a/73331/41247

That depends. What is Lodash?

2:30 AM

What's the url to add a feed to a chatroom? Like for new main posts or sandbox answers? Is it just the normal page url?

A library like jQuery.

It's an external library

so yes

But what about jQuery?

@Calvin'sHobbies it's the RSS feed url

@ӍѲꝆΛҐӍΛПҒЦꝆ jQuery is disallowed too

AFAIK

I assume you're talking about this challenge in particular

2:31 AM

Yeah.

@Doorknob How do I find that?

@Calvin'sHobbies by clicking the link that says "feed"

@Doorknob Hold on, what? Since when?

If I'm not mistaken, there are jQuery submissions.

@ӍѲꝆΛҐӍΛПҒЦꝆ I don't see any reason why it would be allowed to include an external library for free

Thanks!

2:32 AM

@ӍѲꝆΛҐӍΛПҒЦꝆ On that challenge already?

@AlexA. No in general.

Oh. External libraries are fine when allowed.

When in doubt, ask for clarification from the author.

But if it requires an import, you don't get the import for free.

@AlexA. Nope not required. I got a downvote, so I assume it was wrong to use a lib.

Could be. Best to ask the OP.

If the "import" is really "include this file from the internet," then AIUI it's not allowed because that's using an external source

but I'm maybe wrong

2:35 AM

Okay I asked. I'll be concocting another solution in the meantime.

@Doorknob Is that how imports work in JavaScript? I don't script in Java so idk.

Firstly, Node has require and stuff.

Secondly, ಠ_ಠ

@AlexA. You usually need HTML to include external sources.

usually, on the web

You can "import" using JS, but that's a whole 'nother monster.

Anonymous

In somewhat-sane JS, you'd have <script src="somewhere/library.min.js"></script> in the head part of the HTML of the page. But, with pure JS, you can't directly import libraries, so for our porpoises, you can indicate the library in the header, and assume it's properly loaded

Whats the twitter account where popular ppcg questions are autotweeted?

2:39 AM

@Mego So... does that mean that using Lodash is "allowed" by default?

(and is there a meta.ppcg version?)

@Calvin'sHobbies no

@Quill Who are you replying to?

^

no

2:39 AM

@Calvin'sHobbies No, there are no meta tweets

You know you're doing a bad job when your code is twice as large as a Python answer and you're only half way done.

@Calvin'sHobbies twitter.com/StackCodeGolf

:D

thx

np bb

Your timeline is fine. No time travel agents are currently waging a war for control of your future. You're paranoid. https://t.co/kxDY2ZNIib

Tweeted by TimeTravelGuide on February 15, 2016 at 9:21 PM

2:41 AM

@phase What language?

Anonymous

@ӍѲꝆΛҐӍΛПҒЦꝆ Sure, but indicate it in the header. The downvote was probably from someone who disliked code that uses 3rd-party libs

@phase You're not doing a bad job. The important part is enjoying it. :)

@Mego It is in the header.

codegolf.stackexchange.com/a/73331/41247

Anonymous

@ӍѲꝆΛҐӍΛПҒЦꝆ Yeah, I saw. You did everything right.

Why are you using $ for the name?

Instead of, like, f or something

2:44 AM

@ThomasKwa Because why not?

@ӍѲꝆΛҐӍΛПҒЦꝆ That's a sufficient reason, I guess.

Well, the original quine framework (made by me) was called a "bling quine".

Because of the $'s.

So it just looks better?

@ThomasKwa You know you want to

@AlexA. I can't understand it.

Plus Dennis already took Jelly, and I think he'll win.

2:46 AM

What can I do to clarify?

@ThomasKwa Probably not. Some guy used 3 bytes in R: acf.

Are there any other rss-feedable PPCG related things besides main posts, featured psost, meta posts, sandbox posts, and StackCodeGolf twitter posts? (not doing loopholes tafa)

Zgarb

@AlexA. I didn't know that existed. :O

@Zgarb It does indeed. Some say it's operated by the ghost of Jeff Atwood.

(who isn't dead, by the way)

Zgarb

It's weird how it tweets Meta posts too.

@Calvin'sHobbies tags, chat messages, chat stars

user posts, user activity

2:53 AM

ah, tags!

@Zgarb It does?

Oh it does

Are theoretically incorrect answers allowed if it's (near) impossible to find incorrect inputs? http://meta.codegolf.stackexchange.com/q/8379?atw=1

Tweeted by StackCodeGolf on February 15, 2016 at 5:03 AM

Hey @Calvin'sHobbies, that Twitter account also posts meta stuff

Zgarb

@Quill Sounds deep and philosophical. Clickers will be disappointed.

We can have a feed that posts recent chat messages?

2:56 AM

literally all the HNQs are clickbait titles

@PhiNotPi I think it needs a keyword

@PhiNotPi Where would it post them? Back into chat?

lol

I tried to set it up so that I got messages with "code review" in them from here

Turns out you can't specify a room with chat message rss feeds

so it just looped itself, you can see that here, if you're curious: chat.stackexchange.com/transcript/message/26724000#26724000

Anonymous

What was fun was when this question was on HNQ

I made a chatroom for various PPCG feeds, just as kind of a history keeper (that won't get edits about yams...): chat.stackexchange.com/rooms/35836/…

stackoverflow.com/questions/tagged/esoteric-languages

stackoverflow.com/questions/tagged/code-golf

-13

Q: Jon Skeet easter eggs

I have heard things about Jon Skeet such as if you search for guru in google, it will ask if you meant Jon Skeet, but are there really any Easter eggs on this site related to Jon Skeet?

discussion

3:03 AM

@Quill I'd add that if there were ever going to be new ones. (Or are there often new ones that just get migrated?)

Idea: Numbers whose factorization is 2^a * b * (2a + b) should be known as Doorknob Numbers.

Where a, b, and 2a+b are all prime.

@Geobits starts golfing

I'm thinking about posting it, but it seems both simple and arbitrary. Still deciding.

Our @Doorknob is the 11th Doorknob Number (3808), unless I've gone wrong somewhere.

Q: Jon Skeet flagged low quality. How to handle this LQ post?

53

I guess it happens to the best of us: http://stackoverflow.com/review/low-quality-posts/5308506. Screenshot: That depends on what you mean by "represent". Do you just want round-tripping, or the decimal representation of the exact value? Does it have to be human readable, or could you ...

discussion low-quality-posts

2^5 * 7 * 17

3:09 AM

... interesting definition

3808 is just not very interesting :P

@Geobits have you looked at oeis.org/search?q=3808&language=english&go=Search ?

Have you tried plugging it into Wolfram Alpha?

That's how I got Calvin Numbers :P

Yea, there's a lot of sequences including it. I was originally going to do apocalyptic+evil (he's in both), but very few sequences overlap enough to be interesting.

what now?

oh yeah, those

3:11 AM

TIL I am apocalyptic and evil

you don't say?

... It's in 118 sequences in OEIS

Right. I really wanted something that specifically is not in OEIS.

hmmmm what about searching for cellular automata that contain it as the number of white cells at some step?

I would, except that I don't like CA ;)

Ahh. How about 2-tag systems?

3:15 AM

I'm not sure how to make a sequence of numbers containing 3808 from that, tbh.

I want an integer sequence specifically.

I suppose I could just forget about Doorknob and do somebody else's number instead :P

I wouldn't be offended :P

Yea. Like I said, it seems pretty arbitrary the way I had it. Your number sucks ;)

14215 is a number that cannot be written as a sum of 3 squares. <- geobits' user id btw

My number is basically awesome.

Anonymous

I'm 45941, which is 7 * 3^8 + 14, which could be generalized to a * p^(a+1) + 2a

3:20 AM

why don't you do the room number

binary numbers seem a lot easier to find a pattern for

Anonymous

Because 240 is boring

also, u+geobits' number in hex = ໋

Also, you can't have a sequence named after you if it's the room number :P

wait, my bad

forgot >1k is mostly chinese characters, it's 㞇

3:21 AM

oeis.org/A261291 wat. those aren't words

means ulcers/swollen feet apparently

don't think that's a good thing

@somebody It must be referring to Bigtoes.

Anonymous

My uid only appears in one OEIS sequence: oeis.org/A056640

also, TIL my PPCG id is 1 + a palindrome in binary

@Geobits Dk's chat id is 59776 which is interesting since it has one digit exactly one away from making it rearrangeable as a run: 567[7+1]9 -> 56789

3:24 AM

Oh that's nice :)

Still pretty arbitrary, but use it if you want :P

I probably won't tonight anyway. Need sleep at some point I guess.

it seems like Dennis number-level arbitrary

^

Too bad Marky's new brain isn't ready for prime time yet. Perplexity still at 40 :(

Does that look good?

3:28 AM

It looks pretty nice. How does it look on mobile? That's my primary use case, since the sandbox itself is absolutely unusable on mobile.

@somebody Speaking of @Dennis numbers, I didn't realize they made it to OEIS: oeis.org/A263172 :O

@Geobits Oh, there's no mobile version yet :/

@Downgoat Looks good, but the ratios seem a bit off

I might make one when I get more time though

@MichaelKlein around the sandbox post's preview?

@Calvin'sHobbies it took like 4 months iirc

3:29 AM

@Downgoat I thought about doing an Android native app for it some time ago, but lazy happened.

@Geobits isn't a pinned website good enough?

@Downgoat It took me a moment to tell what was going on. I looked to the left column first, which I believe is supposed to be more of a sidebar?

@somebody If it's done well, sure. I'm better with Android than I am with web, though :P

Anonymous

@somebody The sandbox is pretty unusable on mobile

@Downgoat the button grouping is a bit weird, you could colour the two columns separately

3:31 AM

@MichaelKlein yeah, I'm trying to fit a lot of information, so it will look pretty bad (in terms of spacing)

@Downgoat I think this is really, really nice.

@Mego I mean make @Downgoat 's idea responsive, then get Android users to pin that (if possible)

@Downgoat How about rule of thirds?

Sp3000

Apparently my user ID is part of a sexy prime quadruple: p+6 such that p, p+6, p+12 and p+18 are all prime

Good to know

@MichaelKlein no idea what that is

3:32 AM

imo a popup is for only a little bit of content, you should make it jump to full screen and make use of the space more

@somebody Right right. I'm not going to do it now that this exists. I meant a year or so ago.

@Downgoat I found it in photography: en.wikipedia.org/wiki/Rule_of_thirds It's a rule of thumb for design (If you look, it pops up a lot in certain movies, ads etc)

huh, I'll try to do something with that but then again, I'm not good at layout

@Sp3000 obligatory ( ͡° ͜ʖ ͡°)

@Geobits 3808 is a number such that f(x) = x - (largest fibonacci number < x) takes 240 steps to reach 1.

3:35 AM

o_O wow

@Downgoat That's the point, thirds are simple. So the left could be 1/3, right 2/3. upper 1/3 etc

3808 is a number x such that x = 3808

:O

hmm I'm tempted to put a bounty on Grocery Store Micromanagement but I'm not sure if it'll attract much attention.

@MichaelKlein and 240 is TNB's room number :o

3:36 AM

"thirds are simple" reminds me of old "create a 3-column layout" interview questions :/

@AlexA. chat.stackexchange.com/…

hahaha

chat.stackexchange.com/…

@Calvin's Hobbies Also a constructible polygon number, not sum of 3 squares, idoneal, etc. Plenty to work with

chat.stackexchange.com/…

> 1435 messages found

3:38 AM

Nov 5 '15 at 4:47, by Alex A.

( ͠ಠ ͟ʖ ͠ಠ)

Apparently I have said :P in 3833 messages

@Doorknob 29 pages of Alex sticking his tongue out at virtual strangers...

I'm only at 1200 or so :P

That is 9.51% of all of my messages... >_>

918 here

3:40 AM

@Doorknob That almost rivals Marky ;P

68 -> 918... big jump ;)

Guessing he added CR chat stuff?

I'm guessing so. I can't imagine he's at 918 in here already.

You taught your son to speak using Code Review chat? For shame.

@Geobits He has 1.9k messages in here overall

3:41 AM

14 pages of me sticking my tongue out

@Doorknob Yea, I meant tongues.

I know, was just providing some perspective :P

... and there's another one

@AlexA. Huh? No, was talking about Quill adding his CR tongues.

Also I have 23k messages posted what is wrong with me

@Geobits Oh, okay good.

3:42 AM

Marky will never be subject to monking if I can help it :P

@quartata where does findng this numberr

29 for me

@Geobits He's too busy _UNKing to start monking.

room info tab

@quartata You passed me recently :o I need to start talking more.

3:43 AM

it appears I'm third overall (second to Alex and Martin)

So I have the most messages of any non mod.

@AlexA. hover over the room name when you click your profile in the sidebar

41465

I wonder who has the highest ratio of # of message about challenges or golfing or ppcg management (i.e. stuff on topic) / total # of messages

Definitely not me

@quartata Well now I definitely have to take back that title ;)

3:45 AM

Probably Sp

Not Dennis?

@Geobits just you try

o

k

@Calvin'sHobbies Nah. Sp is almost always on topic. Same with xnor.

@AlexA. or xnor/zgarb? hmm

3:46 AM

Martin for sure

Maybe

idk, @Martin goofs off, doesn't he?

someone distract me from doing work pls

Martin now, maybe. He used to be more off-topic.

At least that I've seen.

@phase helo frend i have quetsion.

3:47 AM

@Sp3000 @MartinBüttner Say something off topic. The more off topic it is is how we can decide

@AlexA. wut is ur qeusion m9

@phase wet is you're favorate vegatab

rootabag obvsly

groos

@AlexA. i don lik vegtabs at al

3:48 AM

wet

no lik vegtabs

wht you are eat then ?

i had sum bens 4 dinr n day wer nesty

Q: Output the given English pronoun table

So things kind of regressed here

New Main Posts

0

Output the following table of English pronouns exactly, in as few bytes as possible. Code rules The code will take no input The table is tab-delimited Each line begins with a single tab \t if there is no row heading Each line ends in a single newline \n (not \r\n), including the last line Ther...

code-golf kolmogorov-complexity

3:49 AM

bnes are gooood

Anonymous

Sorry to interrupt this wonderful conversation, but incoming sandbox post

i are eatn al d ota fud tabls

blame @AlexA.

for wet

nuthn u gud

3:50 AM

@phase bens r legume silly

Anonymous

Nevermind we don't need to re-elect Alex

3

when the sound your printer makes when it turns on syncs with your music

good call

._.

Anonymous

We can probably do ok with 3 mods

3:51 AM

alec il relct u frind

Anonymous

And this chatroom might be more readable

Speaking of weird chats stats, it looks like 4.01% of my messages have been starred at least once.

5

I was just trying to help my good friend @phase out by distracting him from his work.

or we take calvin as a new mod @mego

Anonymous

@Geobits I'm not sure what you expected

3:52 AM

Who would you elect instead? No one else is competent.

@AlexA. and from proper english as well, it seems

@AlexA. And I think you broke my printer. It no werk.

Anonymous

@quartata 3 mods :P

@Mego I'm not either tbh. Just curious.

@Mego My chat behavior hasn't changed since I became a mod. :P

@Quill Naturally.

3:52 AM

na we need 4

4-1

@Quill Only if I get Alex's old mod crown

@phase That one I know was Quill.

Anonymous

@AlexA. Well maybe that's a sign that people made a mistake :P (I'm joking about all this btw, you're fantastic)

@Calvin'sHobbies I've never had a crown.

3:53 AM

@AlexA. how did you catch me

I say we should have 13 mods. Because reasons.

@Mego ;_; <3

Anonymous

@Calvin'sHobbies You'll probably want to wash it first. Thoroughly.

@Calvin'sHobbies So we'll say "Calvin is wrong" instead?

@AlexA. Well, Doorknob hoarded it I hear

Anonymous

3:53 AM

Nooo we need 18 mods so we can make a mod-only room called "The Nineteenth Mod"

@Calvin'sHobbies So Knobbles has 2 crowns? Dam Son.

Anonymous

> Knobbles

Doorknobs have two ends

Not always

There are doors that only open from one side

Anonymous

> Knobbles

3:54 AM

Each side is a single knob anyway I think.

@Mego Better than Knobless I'd say.

Anonymous

Clearly his name is Dork Noob

ಠ_ಠ

Anonymous

Welcome back Noobles

Knobbles, Knobber, The Knob, xD00RxKn0bx420x

Dronk Boo

3:56 AM

@Mego You're setting yourself up for a trout smack there, Mego

Sp3000

@Calvin'sHobbies Surely I've been offtopic a fair amount, right? Maybe

Seems like it (no offence :P)

Perhaps, but I still suspect that your on-topic proportion is one of the highest in the room.

A: Sandbox for Proposed Challenges

Yea, "a fair amount" is relative in here.

New Sandboxed Posts

0

Holy Numbers In many fonts (specifically in the Consolas font), 5 out of the 10 decimal digits have "holes" in them. We will call these holy digits: 46890 The 5 unholy digits are thus: 12357 An integer may thus be classified as "holy" if it only contains holy digits, and "unholy" otherwise...

3:57 AM

@AlexA. Actually, someone like TanMath might technically have the highest...

@Calvin'sHobbies It's funny you say that, I was actually just thinking that.

Sp3000

By that metric, Lembik surely? :P