The Nineteenth Byte

Sp3000

6:00 PM

... Regex SE was closed as a dupe of SO?

BrainSteel

I, for one, have no interest in being that personal in this chat room.

Optimizer

But I thought this chat room was personal

Sp3000

(I didn't realise you could close as dupe on Area 51)

Geobits

@Sp3000 I can see that. If you consider it a "language", then it's no different than closing a python.se.

Sp3000

But there's Mathematica SE?

orlp

6:02 PM

@Optimizer I thought this chat room was for personnel

BrainSteel

@Sp3000 Well, are there really that many questions about regex that it necessitates another site? Honest question, I don't really know.

Geobits

@Sp3000 I don't necessarily agree with that, either ;)

aditsu

sounds like you'd downvote it

Sp3000

Hmm sounds to me like they wanted to consolidate the Mathematica across Math SE, SO and other

Doorknob

@AlexA. this is true

Alex A.

6:06 PM

Yeah, where did we go recently? Was it Vietnam?

Geobits

Wait, when did your avatar revert?

Alex A.

@Geobits When you didn't expect it

Geobits

Nobody expects the gamma transposition.

Alex A.

@BrainSteel Buzzkill

Sun's curious identity

In combinatorics, Sun's curious identity is the following identity involving binomial coefficients, first established by Zhi-Wei Sun in 2002: After Sun's publication of this identity, five other proofs were obtained by various mathematicians: they are Panholzer and Prodinger's proof via generating functions, Merlini and Sprugnoli's proof using Riordan arrays, Ekhad and Mohammed's proof by the WZ method, Chu and Claudio's proof with the help of Jensen's formula, and Callan's combinatorial proof involving dominos and colorings. An application of the identity was given by Sun in a recent paper. ...

^ just because

Sp3000

btw still waiting for the golfing language submission to smash all in this question

Doorknob

6:09 PM

@BrainSteel No, but I know that @Rainbolt lives in at least the same state as me. :P

Alex A.

I don't know any other users that live in Washington. I'm all alone in the great north woods.

Doorknob

@hichris123 "Are you saying that it's possible for a site to stay in beta forever?" Yes. — Ana ♦ Jun 1 at 18:55

Alex A.

@Doorknob Oh man, now we'll never move to gamma. :/

Geobits

Probably for the better. The theme they have for gamma really burns the eyes.

BrainSteel

@AlexA. What, buzzkill?! To be fair, I don't care what my best friends' girlfriends look like either :P

aditsu

6:16 PM

@Geobits reminds me of what-if.xkcd.com/73

Beta Decay

@Doorknob Can't we at least change the theme while we're in Beta? The current theme is just horrible

orlp

@aditsu omg

TIL what-if images have hovertext

now I have to read them all again

Doorknob

@BetaDecay The design team at SE is a bit overloaded (that's the main reason meta.stackexchange.com/q/260754/180276 became a thing). So, unlikely, at least in the near future.

aditsu

@orlp haha I noticed some time ago, but the oldest ones are pointless

orlp

@BetaDecay I don't mind it

to be honest, the beta theme is one of the most neutral and pleasant themes on stackexchange to me

most of the actual themed websites are a worse experience for me

Beta Decay

6:21 PM

@orlp Well on mobile it's really raw

orlp

the only real feature I'd like on codegolf is latex

7

@BetaDecay and how does reskinning help with that?

Beta Decay

@orlp Hopefully, the theme should look cleaner

BrainSteel

@orlp LaTeX that doesn't coincidentally break anything else, specifically :D

orlp

@BetaDecay reskinning will not change how the website looks and feels on mobile

or at least, it shouldn't

Doorknob

Mobile theme is the same everywhere.

Why don't you use the Android or iOS app?

Beta Decay

6:23 PM

@Doorknob I do, but for somethings I have to switch to the mobile site

orlp

@Doorknob A while back I gave you guys a possible fix for the latex bug, is there any follow up on that?

Beta Decay

I'm getting mixed up with the mobile site and chat :P

Alex A.

Chat needs its own app.

Doorknob

@orlp I'd have to check with a dev at SE for that (I'll do that when I get home; I'm on mobile right now).

orlp

@Doorknob basically the solution is very simple

@Doorknob right now you guys skin everything with mathjax

aditsu

6:25 PM

I find the android app really terrible

orlp

@Doorknob all you'd need to do is loop over all hN and p elements to skin

Beta Decay

@AlexA. ChatSEy is pretty much that

orlp

and ignore all other elements

Alex A.

@aditsu That's too bad! I love the iOS app.

Doorknob

27

Q: ChatSEy - An Android App for SE Chat

Screenshot About Completely overhauled styles, including default and dark themes Reply to, star and flag messages Slide-out Sidebar for easy menu/star list access Tweaks to make typing easier (including Return -> Send, @username completion) The app works by injecting extra CSS and JS i...

Don't use it, but I hear it's pretty good.

@aditsu why? I use it all the time.

BrainSteel

6:26 PM

@aditsu Yeah, I haven't had good luck with the Android app either. Recently it's been having fights with my phone.

Beta Decay

It's bad for the sandbox, because you cannot set how to sort answers

aditsu

@Doorknob lots of bugs... flickering answers, huge white spaces, wrongly transparent areas; also no ordering of answers

Geobits

Yea, the android app is doing weird thing with notifications for me right now. ChatSEy is nice for chat, though.

Alex A.

My phone is "old" at this point, but the Sandbox crashes the app. :/

Geobits

I wonder if it still force closes when I click code blocks?

BrainSteel

6:27 PM

Right now I just use the mobile site instead of the app. I really hope the app improves over time, since it's a great idea.

Alex A.

Now I know what I must do: iOS chat app.

Beta Decay

Is there a place on SE which concerns the apps?

Martin Büttner

@Geobits well better than the mobile site at least...

Alex A.

@BetaDecay Something like StackApps?

aditsu

@BetaDecay apparently you can report stuff on meta

Doorknob

6:30 PM

Yeah, Meta Stack Exchange.

Alex A.

Yes, Meta.SE for the apps created by SE.

StackApps for community-written apps.

@BetaDecay ^

Geobits

@MartinBüttner Yea... that's pretty much what I meant. Editing your messages is a pain, and it can't be a "default" for chat notifications. But anything is better than the mobile site for chat.

aditsu

I use the desktop site if I want to chat on mobile :p

orlp

I'm thinking of buying a raspberry pi and hacking it into a MIDI sequencer / synth

Alex A.

I just don't chat on mobile.

orlp

6:32 PM

by soldering on the gpio

aditsu

but I seldom want to

Beta Decay

@AlexA. I do pretty much all of my SE stuff on mobile, so I have no choice :P

get a laptop :p

get a raspberry pi

Get an implant.

6:34 PM

Get a smoothie.

Work from home

I wish

Pet a dog.

I'll try all of them now

aditsu

you guys are weird when you're hungry, get a Snickers

3

Alex A.

6:34 PM

@trichoplax Do you?

trichoplax

Nope

Beta Decay

@trichoplax I don't work :P

Geobits

I worked from home for about a year, it was fan-fucking-tastic.

Alex A.

@Geobits Why'd you stop?

Geobits

Was a contract job, and the work was done.

Beta Decay

6:36 PM

He found Stack Exchange and lost all productivity

Alex A.

@BetaDecay How do you pay for things?

Beta Decay

@AlexA. I have parents :p

Geobits

@BetaDecay Hey now, I didn't lose all productivity until I found the meta side.

Alex A.

Chat was the final nail in the productivity coffin for me.

2

aditsu

abandon all work, ye who enter here

14

Alex A.

6:39 PM

@aditsu That should be this room's official description.

Beta Decay

@Doorknob ↑

Rainbolt

I've been following since the calculus puns started and somehow have been able to continue working (well.... until now)

Geobits

You hadn't fully entered the fray. Let's talk about tips :P

Optimizer

or underhanded

Dennis

@Doorknob Got a few quirks, but it's so much better than chatting with a mobile browser. Thanks for the tip!

Alex A.

6:40 PM

tips puns

Beta Decay

Or flags

Optimizer

maybe overhanded will have a much deeper impact

Geobits

NewMainPosts: List of links to all tip questions

Optimizer

tips on writing the most overhanded answers in an underhanded manner to a question about flags

Alex A.

tips for putting your life back together after discovering SE.

Beta Decay

6:42 PM

Tips on writing questions about tips on writing the most overhanded answers in an underhanded manner to a question about flags

Rainbolt

Let's rename Lifehacks SE to Lifetips

Then move our tips there

Geobits

Or burn it with fire ;)

Alex A.

tips arson

Rainbolt

@Geobits You winked because you really want to burn it with something other than fire?

Geobits

No, I just have a nervous tick. Thanks for point;)ing it out.

Optimizer

6:44 PM

no, because he wants to dampen it with fire

@Geobits *tic

@Geobits tic

@Geobits tic*

q tips

Gotta get in there quick. Time's ticcing

Beta Decay

6:45 PM

tips spelling tic

Optimizer

tics spelling

Geobits

You guys are all confused. I'm talking about the bloodsucking bug.

Alex A.

@aditsu haha just got that

Geobits

He gets nervous and bites near my eye sometimes, causing me to wink.

Beta Decay

wretches

Rainbolt

6:46 PM

^

^

v

wrenches

LOL

We were close to doing the Konami Code >:(

orlp

6:47 PM

> We bundle a little square of blue gel with the Pi NoIR, which you can use with the Pi NoIR to monitor the health of green plants. The Pi NoIR is very popular among wildlife hobbyists: with a few infra-red LEDs, you can monitor what nocturnal animals are doing in your garden without disturbing them.

TIL the Pi is used for growing weed

Rainbolt

@Geobits ∨*

Geobits

I can only assume that means you think I didn't mean to type a v?

Alex A.

@orlp Raspberry Pi v420, codename "Blaze It"

Rainbolt

@Geobits You didn't type "v?"

Geobits

Now I'm just confused.

aditsu

6:50 PM

^

v

>

<

A

B

6:51 PM

Enter

select

∀

\-/

∀∀∀∀∀∀∀rgh!!

Alt+F4

6:52 PM

ᔭℲ+ʇʃ∀

Beta Decay

What the hell just happened to my browser?

It just...Closed suddenly

Geobits

Umm

Rainbolt

Did Chrome turn Green then Yellow then Red over the past few weeks?

trichoplax

@BetaDecay Are you typing everything you read???

Beta Decay

@trichoplax I'm terrible at multitasking :)

Geobits

6:53 PM

@Rainbolt Not that I know of.

trichoplax

@Rainbolt Does it fall once it gets ripe?

orlp

I can't contain this feeling hnnnng

Geobits

Cat gifs: the new rickroll

Dennis

@orlp No flaws in your math, but I'm not sure what your point is.

Beta Decay

Catrolling

orlp

6:55 PM

@Dennis Just to give other people an idea of the size of the numbers, and their difference. No point other than curiosity :)

Alex A.

2

Rainbolt

Catrolling?

orlp

@Dennis bonus points if you'll post (49^49)!

Beta Decay

You guys are so fast :D

Rainbolt

Google cat rolling gif... About 1,640,000 results (0.33 seconds)

Beta Decay

6:57 PM

That's proof. Cats are the most intelligent species to be so prolific on the internet

Rainbolt

Which is incredible when I consider the fact that I spent my last two days making a query faster so that it can handle 2 million rows

My idea for the magic square was to grab all 49c7 that sum correctly, then find 7 groups of 7 that don't overlap, then try arranging them. Then I realized that probably isn't appropriate for golf and felt like too much work anyway.

Alex A.

@aditsu Maru is my spirit animal.

Beta Decay

Cat In A Shark Costume Chases A Duck While Riding A Roomba

►

aditsu

6:59 PM

@AlexA. so the bird avatar is just a cover?

Alex A.

@aditsu Perhaps I should rephrase. Maru caught and killed my spirit animal and left it on my doorstep as a gift.

Cats.

D:

Alright, my screen has burned a big enough hole in my retina, so I'll sine out

Alex A.

Uh okay. Byte.

trichoplax

7:05 PM

Are we still on calculus??

Doorknob

room topic changed to The Nineteenth Byte: General discussion for codegolf.stackexchange.com | abandon all work, ye who enter here —aditsu (no tags)

@AlexA. it is done

aditsu

\o/

@trichoplax that's afFermative

orlp

Does evil exist, and if so, can one detect and measure it?

Geobits

We should rent some billboards along the highway and put up some of our optimization challenges.

Take our nerd sniping level up a bit.

trichoplax

@orlp Is this an idea for a question...? :)

aditsu

7:15 PM

there's definitely 1 or 2 SE sites that will accept it

trichoplax

I was thinking more of a challenge...

Doorknob

Philosophy?

aditsu

also puzzling, maybe skeptics :p

Doorknob

If you post that on Puzzling I'll delete your Puzzling account :P

and I doubt Skeptics would be happy with it either

Optimizer

please post it

Alex A.

7:20 PM

@Doorknob :D :D :D

trichoplax

"Does evil exist, and can it be harnessed to power a Raspberry Pi?"

aditsu

workplace :)

@Doorknob come on, measuring evil is a great puzzle

ah, another one: scifi and fantasy

Alex A.

I don't know what's going on so I'll also list SE sites

Academia

Stack Overflow

StackApps

aditsu

@AlexA. we're thinking where to post orlp's question

Geobits

I think it might fit on Digital Signal Processing. Or at least the second part.

aditsu

7:24 PM

good point

or electrical engineering

Geobits

@Doorknob Speaking of puzzling, why do people edit numbers into Mathjax in the title? I don't mean math, but just numbers. Example: puzzling.stackexchange.com/questions/18745/…

Alex A.

Aw, the Dennis who posted that isn't our Dennis

he's a phony!

.PHONY: dennis

sudo make dennis

7:29 PM

i just discovered this chat

Dennis

make: *** No rule to make target 'dennis'. Stop.

Geobits

ahem case

@Oberon Welcome. Be prepared to not be as productive as you were.

Oberon

not like I ever was

Geobits

Ah, well then no worries.

Vioz-

Perfect fit!

Optimizer

7:37 PM

Pietu1998

still hasn't understood nobody golfs in this room damn I can't get PYth's fancy right-map stuff working.

aditsu

Geobits

Oh cool, it's one of those images that looks like something else upside down. What's that called again?

Dennis

@Pietu1998 What did you try?

aditsu

it doesn't really look like anything

Pietu1998

7:42 PM

@Dennis I basically just can't figure out how all the "modifier" operators are used.

Optimizer

Pietu1998

Every time I think they would help, they just end up not working.

Dennis

@Pietu1998 R is used as <binary operator>R<right argument><list of left arguments>. For example, -R2Q subtracts 2 from all elements in Q. (permalink)

orlp

@trichoplax no, it's a reference to rick and morty

Geobits

@aditsu I know, but you can say that about almost any line/shade drawing like that and find people willing to twist their head around to see it. Works better in person I guess.

Pietu1998

7:46 PM

@Dennis Thanks.

Vioz-

Dennis, the ~~CJam~~ Pyth master

aditsu

@Vioz- try triple dashes

Vioz-

:D

Anybody here a watch person?

Geobits

I like people-watching, if that counts. Probably not.

Vioz-

:P

You have no interest in time-telling wrist garments?

Geobits

7:52 PM

No. I wore a watch growing up, until about 25 or so. Haven't seen the need for one in years, with all the time-telling devices around.

I do still have a nice watch I'll wear when dressing more formally, though.

Vioz-

Fair enough. Which one?

Geobits

Hmm, I don't wear it very often, don't know the brand/model off-hand. Tungsten, with a black face. Heavy as hell :P

Vioz-

Square face?

And yeah, that would be very heave to wear :P

Geobits

More of a squoval.

Vioz-

More or less round? :P

Geobits

8:02 PM

More

A bit fatter along the face part

Vioz-

Any chance it's a more vintage watch? Not a lot of companies do tungsten watches anymore

Geobits

I wouldn't call 8-10 years old "vintage", but it's not brand new :P

aditsu

@Vioz- did you miss the clock/watch discussion? :p

btw, I wear a watch but not at home

Vioz-

Well then, you appear to have a fairly unique purchase Geobits :P

@aditsu I must have missed it :( What do you wear?

Geobits

It looks a bit like this, but more squared, black face, and not Movado :P

Hotlinking denied...

aditsu

8:05 PM

my watch says "IBM"

Vioz-

Is it a WatchPad? Those are pretty cool :)

New Main Posts

-4

Q: Fix the grammar in a string

Your program, function, whatever will take input of a string (or closest equivalent) and output a string with grammar fixed. See below. Rules Try to fix as many grammar rules as possible, subtract 5 from your score for each rule you implement. You must provide documentation of your grammar rul...

code-golf string natural-language

aditsu

don't know what that is, but I can take a picture of it :p

Vioz-

Picture please! :P I like seeing new pieces

Doorknob

@Geobits That's puzzling.

Vioz-

8:11 PM

Geo, do you know if it's tungsten or tungsten carbide? If it's the former then you've got a sweet piece.

aditsu

Geobits

@Vioz- Tungsten carbide. I like the feel/look of it better.

Vioz-

Fair enough. Still cool! Just, don't drop it :P

Geobits

Are you kidding? I've beaten this thing to hell, with no sign of wear.

Vioz-

@Geobits You must've gotten a good piece then. Tungsten carbide is notorious for being easy to mess up and make very brittle

Lots of people get screwed over by lower-end tungsten carbide rings and watches that shatter easily

Geobits

8:15 PM

Oh, well it wasn't a crazy cheap or expensive one. I wanna say the $200 range. Not bad for what it is.

Vioz-

Hey, if it's held up this long, it was a good buy!

aditsu

so I guess mine is nothing special, just branded IBM :p

Vioz-

@aditsu Very special! Never seen anything like it..

I also can't find a single piece of information on it anywhere

aditsu

I mean.. it's not an expensive kind of watch and doesn't have amazing features

Vioz-

Do you know if it's quartz or automatic?

Geobits

8:21 PM

When I wore a watch daily, it was a very cheap one. My nice one is just for dressing up :)

aditsu

well, it's battery-powered

Vioz-

So it's a quartz :)

Should have figured that, automatic chronos are not cheap :P

Doorknob

@Geobits Hope you don't mind that I edited your comment; just cleaning up the mess that was that question. (It received two offensive flags in a very short period of time.)

Geobits

Wow, really? I didn't think people were normally all that offended when you say nazis do bad things. Oh well, I'll just delete it since xnor's covers that point well anyway.

Oh, wait, you meant the Q or my comment got flagged?

Doorknob

No, the question. (Sorry, that was a bit ambiguous)

Geobits

8:27 PM

K, that makes more sense :D

New Main Posts

1

Q: Rise, sequence, rise

We have a rising sequence of non-negative integers, like: 12 11 10 Wait! This sequence isn't rising, is it? Well, the numbers are written in different bases. The least possible base is 2, the biggest is 10. The task is to guess bases each number is written, so that: the sequence is rising, ...

code-golf

Vioz-

8:54 PM

Congrats to @MartinBüttner for hitting the big 50k :)

10

aditsu

wuuut!! ^

how is that even possible?

Lembik

what happened to latex on codegolf?

it was here, then it went

is it coming back?

aditsu

it's hot, it melted

Lembik

any python gurus in?

I have two commands I want to run in parallel

print h.omega()
print g.alpha()

it's as simple as that

is there an easy way to do this in python?

aditsu

based on a quick SO search, it seems that you can't easily run things really in parallel with the standard interpreter, you can use a different interpreter (and use threads) or a multiprocessing library

orlp

9:09 PM

@Lembik Python doesn't have true parallelism

@Lembik what are you really trying to accomplish?

why do you want two things to execute at the same time?

Lembik

@orlp bpaste.net/show/3328c5a99f8e I have 8 cores so I would like h.omega() and g.alpha() to happen in parallel

as they are slow

orlp

@Lembik docs.python.org/3/library/multiprocessing.html

Lembik

nothing fancier than that. They both just return an interger

integer

I was just reading that

it seems designed for something much more general that what I am trying to do

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

Golf these arrays Your task is to output these 128 arrays: http://pastebin.com/UeBMJfv7 Gzip base64: (too long, will be added if I'll post this question). Rules You don't have to output them all. And you can output the arrays in any order. But the order of items in the arrays must be kept as...

Pietu1998

‍

2

aditsu

9:16 PM

@Lembik just use java, it's easier :)

and probably faster too

orlp

@Lembik you can use p.map, no?

Lembik

@aditsu Thanks :)

@orlp maybe... :)

orlp

@Lembik it's right there in the examples

one of the first

Martin Büttner

@Vioz- thanks :) ... although I feel like we can celebrate that again tomorrow, because those last 5 upvotes will probably be reverted :P

Lembik

@orlp print(p.map(f, [1, 2, 3])) you mean?

orlp

9:20 PM

@Lembik yes

@Lembik hint: call = lambda f: f()

[h.omega, g.alpha]

Martin Büttner

17

Q: Do we really want LaTeX/MathJax (right now)?

Update: The decision has been made to deactivate MathJax on main for now (it's still active on meta to play around with). This does not reflect the current votes, as these changed significantly after the decision was made. We've had MathJax support for 3 days now. While it makes our maths chal...

discussion status-completed latex

Lembik

ah nice

thanks @orlp

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

Largest permutation order code-golf Find the largest order of any permutation on n elements (Landau's g(n) OEIS A000793). Input is the positive integer n, output is a positive integer. Fewest bytes wins. Since the order of a permutation is the LCM of its cycle lengths, this equals the largest L...

orlp

haha

I got a visual pattern

BrainSteel

9:44 PM

@Pietu1998 Yup, that sounds like PPCG chat ;)

Transcript for