The Nineteenth Byte

12:07 AM

how do you get a formula for this? i.imgur.com/XYgxN7D.png

that's the abacaba pattern

0s:  1 121 1213121 121312141213121 1213121412131215121312141213121

somebody

yeah

Thomas Kwa

@somebody For the binary search question?

I can't think of anything shorter than on the answers already there.

Doorknob

a_1 = "1"
a_n = a_n-1 + n + a_n-1

somebody

wait what?

Doorknob

12:12 AM

$user image$

where a₀ is the empty string

shoot I messed that up

somebody

yeah

Thomas Kwa

@somebody Concatenation, not addition.

Doorknob

imagine the -1 with the n :P

somebody

oh

orlp

wtf

my chat bugged out

oh well, I'm back

58 1073741822
59 120

Thomas Kwa

12:14 AM

@Doorknob Do you know a better character than * for this?

somebody

Π?

Adnan

@orlp I'm guessing that for n=60 the outcome is 2147483646

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

How many buildings can I see? I'm at position (0, 0) of an infinite city, which is perfectly divided into blocks centered at each lattice point, some of which contain buildings. A building at a certain point (x, y) takes up the entire square from (x-.5, y-.5) to (x+.5, y+.5), inclusive. A build...

Adnan

But I'm not sure about that

orlp

who wants to have a bit of fun?

somebody

12:18 AM

me?

depending on what you mean by fun

orlp

python3 -m pip install --user pyglet

curl -s https://gist.githubusercontent.com/orlp/f32d158130259cbae0b0/raw/af4eb41c03d42a1‌964e621890884d1455ef7866f/gistfile1.txt | python3

enjoy

press -/+ as well

somebody

invalid syntax at doctype html?

orlp

hrm, for some reason when I copy paste the command from the chat it screws with the url

somebody

'Not Found' when opened

orlp

gist.githubusercontent.com/orlp/f32d158130259cbae0b0/raw/…

https://gist.githubusercontent.com/orlp/f32d158130259cbae0b0/raw/af4eb41c03d42a‌1964e621890884d1455ef7866f/gistfile1.txt

those two

should be identical

why does the chat botch the latter link?

@somebody oh well, use the blue link that I just wrote - that should work

somebody

12:22 AM

does it show the result?

orlp

curl -s -L https://goo.gl/Fa0XX4 | python3

there, that should also work

@somebody it opens an opengl application running an animation :)

did you do python3 -m pip install --user pyglet ?

somebody

yeah

but it doesn't show result? :(

Downgoat

I'm making a golfing language, name suggestions?

somebody

what kind of golfing language?

Downgoat

@somebody just a general purpose golfing language, it's syntax is mostly digits...

undergroundmonorail

12:25 AM

Call it "Perl (+1 for -p)"

It's the best name and I want someone to use it

Adnan

@Downgoat Figura?

orlp

@somebody I don't know, works here

quartata

@AlexA. What's the status on cs? I'm on mobile so can't see steam group chat

somebody

i know

Downgoat

@Adnan hm... that's a good name

somebody

12:29 AM

mostly digits? can you give an example program?

or maybe how it works

Downgoat

@somebody 71631 would be an example of a program

orlp

@Doorknob you here?

undergroundmonorail

Call it 24601

Cyoce

shit

was only 5 kills away from 40 bomb :(

Downgoat

@undergroundmonorail I don't think very many people will get the reference

somebody

12:37 AM

@Downgoat how short will it be?

comparable to Pyth/CJam/Jelly/MATL?

Downgoat

@somebody very short. Programs will be (hopefully) only arounds 5 characters

somebody

maybe you could call it Decimate?

Downgoat

@somebody that's good too...

somebody

you could (maybe) start a thread or something?

orlp

what about Putt?

somebody

12:41 AM

maybe Digital? Myriad (for 10000)?

Luis Mendo

@Dennis Whenever you can please give MATL a pull

Downgoat

strawpoll.me/6800938

Luis Mendo

@Downgoat only around 5 characters with only digits??

Downgoat

@LuisMendo hopefully

Luis Mendo

:-)

somebody

12:45 AM

@Downgoat meaning it's shorter than Jelly with 25x fewer chars?

Luis Mendo

Why Figura?

somebody

Adnan's suggestion

also, why not?

Adnan

@LuisMendo I thought it was number in Latin

But I don't know if that is true

Downgoat

@somebody yeah, the goal of the language is to have a smarter interpreter so the interpreter can "figure out" what the source code wants to do

somebody

@Adnan nope, shape in latin, figure in spanish

Luis Mendo

12:47 AM

Oh, I see. Not sure about Latin. But in Spanish "Figura" means something else ("figure" as in picture, not as in digit)

Dennis

@LuisMendo Pulled.

Luis Mendo

@Dennis Your promptness amazes me. Thanks!!

Adnan

@somebody Yeah, I translated from Dutch, and that probably gives me a lot of trouble :p

El'endia Starman

@orlp Insane difference in magnitude.

somebody

how is Putt winning? D:

orlp

12:49 AM

@Adnan correct

60 2147483646
61 124
62 126
63 1
64 126
65 124

Thomas Kwa

@Downgoat Let me guess, you're conserving entropy by being some of the way to enumerating all possible likely programs?

somebody

even Ace/Albatross/Eagle is better: en.wikipedia.org/wiki/Glossary_of_golf

Downgoat

Can someone link to the "requirements for a language" meta post, I can't find it

orlp

@El'endiaStarman even bigger difference in magnitude

@El'endiaStarman did you try out my animation?

Quill

@Downgoat why isn't your mom on this list? oh, right, golfing languages.

El'endia Starman

12:51 AM

I wonder when the next oddball will be...

@orlp Mmm? Where?

somebody

40

A: What are programming languages?

My previous answer was criticised for not drawing a line in a sand, so following some discussion on chat I propose a line. Executive Summary A purported programming language should be accepted as such if and only if it is capable of addition of natural numbers and primality testing of natural n...

El'endia Starman

Oh, was that the code you posted earlier?

somebody

@Downgoat

orlp

python3 -m pip install --user pyglet
curl -s -L goo.gl/Fa0XX4 | python3

Downgoat

@somebody :D thanks

orlp

12:53 AM

@El'endiaStarman run those two lines and enjoy (you can press +/-)

somebody

@El'endiaStarman note: that's just an animation

El'endia Starman

I can't understand a word but I love it.

Immediate Music - Leuchte Auf Mein Stern Borussia (BVB Hymn - Epic Version)

►

@orlp zomg :D

Huh, look at the animation for n=19. Makes me think it should have the same period as n=15.

Downgoat

Anyone know why this doesn't work? The if statement seems to be erroring...

somebody

what error?

El'endia Starman

No, of course it doesn't. n=15 kills every pattern.

orlp

1:05 AM

@El'endiaStarman n = 15 dies out for me

Downgoat

@somebody nevermind, it was indentation

VoteToClose

@Downgoat Move the else statement back a bit. ;P

somebody

for the else?

El'endia Starman

Yeah, still, n=19 looks like it's a superset of a smaller pattern.

Downgoat

weird, my interpreter is auto-indenting the else: to that position, am I doing something wrong?

El'endia Starman

1:05 AM

2 hours ago, by orlp

orlp

@El'endiaStarman gist.githubusercontent.com/orlp/ad7551fbcadc774734fe/raw/…

those are all the numbers I have so far

El'endia Starman

awesome :D

I shall be submitting this to the OEIS.

VoteToClose

@El'endiaStarman Waddat?

El'endia Starman

1

A: Sandbox for Proposed Challenges

Electrons bouncing in a wire Imagine a "wire" that has n spaces. Imagine further that there are "electrons" in that wire. These electrons only live for one unit of time. Any spaces in the wire that are adjacent to exactly one electron become an electron. In Game of Life terminology, this is B1/S...

@orlp Speaking of which, it's fun to watch any single starting seed die out on n=63. :P

link

Better.

VoteToClose

Lel.

Alex A.

1:14 AM

@El'endiaStarman \o/

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@Mego Say operator [ begins capturing an array, and ] ends it. Is that still a literal?

@El'endiaStarman nope. the all alive one was especially boring ;)

El'endia Starman

haha :P

Cᴏɴᴏʀ O'Bʀɪᴇɴ

having horizontal torodial on is interesting

El'endia Starman

Huh, didn't think to investigate that.

Now that I've tried a few, I conclude they're nowhere near as interesting as the non-toroidal version. :P

That said, there might be a worthy sequence too.

Cᴏɴᴏʀ O'Bʀɪᴇɴ

Yeah, they all have a similarly short lifespan

El'endia Starman

1:24 AM

Short period, rather.

And if it were unbounded, that wouldn't be terribly interesting because that's equivalent to the CA that produces Sierpinski's triangle.

Rule 90

Cᴏɴᴏʀ O'Bʀɪᴇɴ

Ah, right

I added a ggg to it and it was very interesting, though it didn't last long.

....ggg?

Gosper Glider Gun

ah

The permalink is too long ._.

El'endia Starman

1:29 AM

hehe, use goo.gl

Cᴏɴᴏʀ O'Bʀɪᴇɴ

You need to make a more efficient permalink syntax...

El'endia Starman

The permalink has (almost) all of the information on the page.

Cᴏɴᴏʀ O'Bʀɪᴇɴ

goo.gl/WEgtRN

GamrCorps

I honesty cried a little when I saw the 10 questions per day. That was awkward. That says something about my obsession with this site...

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@El'endiaStarman Still, I feel like it could be shorter

El'endia Starman

1:30 AM

@CᴏɴᴏʀO'Bʀɪᴇɴ Hahaha, destroyed the glider gun. :P

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@GamrCorps I get you :)

@El'endiaStarman yup!

Add a live cell translate function please

quartata

@AlexA. So is the CS thing happening or not happening

El'endia Starman

How do you mean?

Cᴏɴᴏʀ O'Bʀɪᴇɴ

Specify the vertices of a box, and a translate factor (x,y) to shift the area of live cells.

El'endia Starman

ah

Cᴏɴᴏʀ O'Bʀɪᴇɴ

1:32 AM

I don't like manually moving the gun :P

El'endia Starman

Honestly, I'd like to be done with this project.

Cᴏɴᴏʀ O'Bʀɪᴇɴ

oh

El'endia Starman

Like, stop working on it. The render-to-gif feature was the last one I really wanted to put in.

Cᴏɴᴏʀ O'Bʀɪᴇɴ

You don't have to, I'll just end up writing an extension for it ^_^

El'endia Starman

:)

Feel free. :)

Cᴏɴᴏʀ O'Bʀɪᴇɴ

1:33 AM

\o/

quartata

Is the code for it in GitHub?

Cᴏɴᴏʀ O'Bʀɪᴇɴ

^ ?

El'endia Starman

@quartata Hmm. I don't think so.

Lemme make a repo real quick.

Cᴏɴᴏʀ O'Bʀɪᴇɴ

\\\\\o/////

El'endia Starman

All you need is the HTML and JavaScript, right?

The render-to-gif button wouldn't work though.

Or rather, I can just take it out once it's on GitHub.

Cᴏɴᴏʀ O'Bʀɪᴇɴ

1:35 AM

Yup, really just the javascript stuff.

Alex A.

@quartata Happening?

quartata

Did you get the router stuff working?

If not we can try on an empty pub

Alex A.

I'm still confused on what router stuff I need to get working.

El'endia Starman

@CᴏɴᴏʀO'Bʀɪᴇɴ @quartata github.com/elendiastarman/variations-of-life

quartata

@El'endiaStarman @Cyoce @Quill @Roujo @quintopia

@AlexA. You need to figure out how to configure your router's firewall thing

Or whatever your gateway's firewall is

Alex A.

1:42 AM

It has a firewall I think

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@El'endiaStarman thanks!

quartata

@AlexA. k

Looks like we don't have quite enough people with CSS yet.

We'll have to throw in some bots.

Alex A.

( ͡° ͜ʖ ͡°)

Downgoat

Does python have something like JavaScript's parseInt?

El'endia Starman

int()

somebody

1:45 AM

@quartata what?

quartata

We're organizing a Counter-Strike game.

somebody

oh

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@El'endiaStarman THE jQUERY BURNS MY EYES

quartata

But we don't have 10 players I don't think so we'll need to have some bots.

Cᴏɴᴏʀ O'Bʀɪᴇɴ

ALMOST AS MUCH AS TNR

El'endia Starman

1:45 AM

@CᴏɴᴏʀO'Bʀɪᴇɴ I was wondering how long it would take for you to say something like that... :P

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@El'endiaStarman I was working on object-ing my extension until just now :P

VoteToClose

@CᴏɴᴏʀO'Bʀɪᴇɴ I like how you still lowercased the j.

Quill

@Downgoat use a unary or Number instead of parseInt

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@VoteToClose I am better than jQuery and respect its initial capitalization. o^o

Quill

@quartata thou summonist me?

quartata

1:47 AM

ye prepare yourself

El'endia Starman

*preparest

@VoteToClose Good spot. :P

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@El'endiaStarman

sowee

El'endia Starman

@quartata I'll be on in a bit. Gonna finish this OEIS submission.

@CᴏɴᴏʀO'Bʀɪᴇɴ Yeah, haven't implemented that.

Cᴏɴᴏʀ O'Bʀɪᴇɴ

okai I'll work on it then

El'endia Starman

Not sure if I will, though I kinda want to.

Quill

1:49 AM

I literally just went out (lennyface)

Liam

I'll get on csgo if you need another person, but I suck

quartata

This is CS:S

Liam

let me see if I have that

oh wait I have to reboot on windows....

orlp

@El'endiaStarman glslsandbox.com/e#20527.10

Cᴏɴᴏʀ O'Bʀɪᴇɴ

hardcore forking:

orlp

1:50 AM

when sierpinski meets floating point

quartata

haha

El'endia Starman

@orlp woooooaaaaahhhh....

Quill

@CᴏɴᴏʀO'Bʀɪᴇɴ character

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@Quill ?

Quill

You mean the J, not the Q

Downgoat

1:52 AM

What's the shortest way to chunk a string in python?

Quill

@Downgoat chunk?

orlp

@El'endiaStarman glslsandbox.com/e#30800.0

try changing P and Q

Downgoat

@Quill split a string into (1-N) sized pieces

Cᴏɴᴏʀ O'Bʀɪᴇɴ

I'm happy that there are generous, professional programmers on this website, whose aim is to help others. Instead of poking fun at the askers, or looking for their ponies. Thanks Jon. — Delphi.Boy Sep 6 '13 at 13:22

i cri 10/10

@Quill *initial uncapitalization then

El'endia Starman

@orlp I love it.

somebody

1:55 AM

D: cjam uses mercurial

El'endia Starman

@Downgoat I think this will work (untested): [s[i:i+k] for i in range(0,len(s),k)]

Downgoat

@El'endiaStarman sweet, thanks!

orlp

@El'endiaStarman but seriously

mess around with P and Q

El'endia Starman

I am.

Woah, check out P=1 and Q=50.

Quill

@CᴏɴᴏʀO'Bʀɪᴇɴ it's okay, buddy <3

VoteToClose

1:59 AM

RDFTD

[Dubstep] - Tut Tut Child - Fell Down (feat. Holly Drummond) [Monstercat LP Release]

►

orlp

@El'endiaStarman it's modular floating point sierpinski :)

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@Quill <3 my first mention on twitter.

Maybe I should get twitter ¯\_(ツ)_/¯

orlp

plus something weird with Q

El'endia Starman

@orlp I really wish I had a lot more screen space.

Geobits

Get moar screens

Alex A.

2:00 AM

All the screens

VoteToClose

^

El'endia Starman

Moved the tab to the second monitor. :P

orlp

P = 0.95, Q = 400

can you even triforce?

Quill

@CᴏɴᴏʀO'Bʀɪᴇɴ it's good, there's lots of may mays on there

@orlp /\/\

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@Quill "may mays"? o-o

orlp

2:01 AM

@El'endiaStarman look at the top left

@El'endiaStarman you see "2" right next to "hide code"?

put that to 1

New Meta Posts

0

Q: How to score adding a Perl library on the command line?

I know the Perl -p flag is counted as one byte. I've just added the Perl bignum library to my answer to make it shorter. I'm using it like this: perl -p -Mbignum filename.pl. How many bytes does it count as?

El'endia Starman

OOH.

Oh that's wonderful.

Quill

@CᴏɴᴏʀO'Bʀɪᴇɴ knowyourmeme.com/memes/maymay

Sp3000

@Downgoat meta.codegolf.stackexchange.com/a/1085/21487

Might be of interest to you

orlp

Cᴏɴᴏʀ O'Bʀɪᴇɴ

2:03 AM

@Quill oh, lol

orlp

wait what

that's a downscale

sec...

Downgoat

@Sp3000 ?

Sp3000

Just pre-emptively, in case your golfing language is what I think it is

Downgoat

oh

Does it count if the interpreter does it?

quartata

OK so we've found the CS:S pub server that we'll use (I think). 74.91.113.212:27015

@Quill @quintopia @El'endiaStarman @Roujo @Cyoce

orlp

2:06 AM

ugh whatever

my machine is not co-operating

quartata

You can join by typing connect 74.91.113.212:27015 in your console or hitting join game on my thingy

Cᴏɴᴏʀ O'Bʀɪᴇɴ

orlp

are you guys golfing CS:S?

Cᴏɴᴏʀ O'Bʀɪᴇɴ

(And any suggestions on the post?)

Quill

Could someone clue me in on how you could accidentally write an algorithm that selects the first folder in / and deletes it?

Tweeted by SwiftOnSecurity on February 12, 2016 at 9:26 PM

Sp3000

2:08 AM

@Downgoat Even if it doesn't (I'd argue it would), it would still be invalid since the dependency that allows it to solve the problem wouldn't have existed before the challenge was posted

Downgoat

@Sp3000 What if the dependency does exist before the challenge was posted?

Sp3000

Hard to tell what you mean without knowing how your interpreter works exactly

Downgoat

@Sp3000 My first idea was doing an OEIS lookup

Cᴏɴᴏʀ O'Bʀɪᴇɴ

0

Q: Optimal compression for a large base 10 number contained in a string

I am writing compression and decompression functions for strings containing base 10 digits. I figure that, since it is a mere 10 characters being acted upon, that there exists a much smaller string that can represent large strings. The compressed result is encoded in ISO-8859-7, so I can use 256 ...

javascript string algorithm compression

Geobits

Javascript doesn't have any bignum library you can use for manipulation?

somebody

2:15 AM

finally done: https://github.com/somebody1234/Digital-Golf-Course
i've probably left out half though

@Geobits github.com/jtobey/javascript-bignum ?

Downgoat

@Geobits I've made a very fast one but it's incomplete

Alex A.

@quartata

Geobits

For the record, I'm asking for Conor, not myself >_>

quartata

restart css I guess

El'endia Starman

@AlexA. You stare long enough into the abyss...it stares back.

Alex A.

2:20 AM

... O_O

Sp3000

@Downgoat Hmm not what I thought you were doing, that makes things a bit tricky to answer. Personally I'd still argue that it outsources the real answer, but I'll have a think about it and get back to you later.

Calvin's Hobbies

Marky lives in southern Germany

4 mins ago, 3 minutes total – 21 messages, 2 users, 0 stars

Bookmarked 24 secs ago by Calvin's Hobbies

3

(cc @MartinBüttner)

Geobits

I blame Martin's 40k+ chat messages for that :D

Let me guess, he's from Germany but lives in the UK, right?

New Meta Posts

2:49 AM

0

Q: What can we do with "too old to migrate" questions that belong on meta?

I was looking for a specific post I'd seen before on golfing tips: Tips for golfing in Perl? I eventually found it on codegolf, not meta.codegolf where it obviously belongs. Yet, apparently it is too old to migrate to meta.codegolf. I have read the reason for this on meta but I disagree that it'...

discussion support migration

Eridan

It irks me how Java lets infinity exist as a double and not as an integer, yet it's still possible to create an integer that when you subtract from it it's still the same thing, and if you want to print the value of the integer "infinity" conditionally you need approximately large more bytes and it's really ungh

2

Java irks me