The Nineteenth Byte

Kenny Lau

02:00

golfed

quartata

@KennyLau jelly.tryitonline.net/#code=w4ZGeuG5qg&input=&args=NzI

@CᴏɴᴏʀO'Bʀɪᴇɴ jsoftware.com/help/user/call_procedure.htm

Kenny Lau

@quartata the z is bugged

quartata

What's going wrong?

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@quartata .-.

Downgoat

@quartata making C calls doesn't make a language practical for real use

Kenny Lau

02:01

@quartata I suspect it returned a generator (in python jargon)

quartata

@KennyLau Ah, gotcha.

@Downgoat (joke)

Eᴀsᴛᴇʀʟʏ Iʀᴋ

@Quill the chat viewer for the terminal

quartata

But J can be used for practical programming if you're really really good

Downgoat

@quartata Oh :|

Kenny Lau

@quartata here

def zip_ragged(array):
	return listify(map(lambda t: filter(None.__ne__, t), itertools.zip_longest(*map(iterable, array))))

Cᴏɴᴏʀ O'Bʀɪᴇɴ

02:02

BAI

Kenny Lau

bye

How to make a tacit verb in J?

quartata

@KennyLau =:

Quill

@EᴀsᴛᴇʀʟʏIʀᴋ Oh, uh, I've made improvements on the chat engine, but I haven't fixed the Input yet, I gotta change prompt to readline

Kenny Lau

@quartata I remember something like 13:0

=: is assign

quartata

Right.

verb =: ( ... )

Dennis

02:06

You don't need the parens.

quartata

I didn't know he was golfing

I find it easier to read with the parens

Kenny Lau

I meant convert non-tacit to tacit

I remember something like 13:0

Dennis

@quartata Ṫ is executed with argument 72, because z forks.

Kenny Lau

@Dennis Why does ({./:~#~@]~) x work but not ({./:~#~]~) x? (The difference is @)

quartata

@Dennis oh right oops

Kenny Lau

02:12

@Dennis They're all monads, right?

Eᴀsᴛᴇʀʟʏ Iʀᴋ

@Quill okay.

And multiple commands...

El'endia Starman

@orlp Awesome. :D

Dennis

@KennyLau J's verbs don't have fixed arities. They're used as monads or dyads depending on where they occur in the train.

Kenny Lau

How would those be interpreted?

quartata

I need to use $ then right

Kenny Lau

02:15

@Dennis Also, please see this.

Dennis

@KennyLau As a fork followed by a hook.

Kenny Lau

I see

orlp

@El'endiaStarman you know what's awesomer?

Dennis

@KennyLau I can't see those characters on my phone.

orlp

@El'endiaStarman that graph is 1/H(p) where H(p) is the binary entropy function

El'endia Starman

02:16

Huh, cool.

Kenny Lau

@Dennis Then just see the chat history without clicking any links

orlp

@El'endiaStarman it makes a lot of sense when you think about it

the binary entropy function tells you basically how much information you'll get out of a comparison on average

so if the pivot (the thing you're constantly comparing with) lies at 30% percentile...

Dennis

@KennyLau I can't see them on TIO, but I copied them here. That works exactly as expected. What do you think z does?

Kenny Lau

Well, transpose?

Dennis

Yes, but it's dyadic transpose, and the right arg is a filler for non-rectangular arrays.

Kenny Lau

02:19

dyadic transpose?!

quartata

Wait, I thought it was monadic

Kenny Lau

oh... sorry

The monadic transpose is Z (capital Z)

Dennis

@KennyLau jelly.tryitonline.net/…

@quartata Uppercase letters are monadic, lowercase letters dyadic.

orlp

mfw people are discussing APL- like languages (J, Jelly, APL, K, etc)

quartata

@Dennis Oh I never noticed that pattern. Dur.

OK I think I know how to do this right

Kenny Lau

02:25

@quartata Is your name pronounced "kwor-TEI-tuh"?

quartata

qwore-tah-tah

Kenny Lau

the stress?

quartata

stress is on the first tah I think

Kenny Lau

I see

Quill

@EᴀsᴛᴇʀʟʏIʀᴋ yeah, when I fix the input it'll fix that. I'll fix it in a few hours and ping you when I do

quartata

02:29

@Dennis Does / make the link vectorize? Like does +/ on [[2,3],4] add 2 3 and 4 or [2,3] and 4

Kenny Lau

It doesn't vectorize.

it returns [2,3] + 4

which is [6,7] (auto-mapping)

quartata

Gotcha. So I need to flatten first

Makes sense

Eᴀsᴛᴇʀʟʏ Iʀᴋ

@Quill :D

warning: I won't be on then probably.

But I'll get the message.

@KennyLau kwor-TAH-to-es

Kenny Lau

po-TAH-to

quartata

TIL about this github.com/Dyalog/MiServer

It barely looks like APL anymore

Kenny Lau

02:53

Any chat-mini challenge?

Or @quartata are you still working on the previous one?

quartata

Chat mini-challenge: output "Chat mini-challenge: " followed by 6 space-delimited randomly selected words from /usr/share/dict/words or similar equivalent

Kenny Lau

I don't even know how to access dictionary.py

present in Jelly

quartata

Could make a random base 256 number between 0 and the length of the dictionary - 1 and eval it with the compressed string delimiters around it

Oh wait there's the capitalization stuff

Kenny Lau

where's the dictionary even

quartata

I think you are using the wrong tool for the job to say the least

Kenny Lau

03:01

?

I'm using Pyth

quartata

Oh.

Just do '"/usr/share/dict/words

Kenny Lau

I didn't download Pyth

quartata

Oh well you can't use ' online

pyth doesn't have a dictionary

Kenny Lau

oh I know how to do it in jelly

Maltysen

@quartata +Njd>6.S'"/usr/share/dict/words

Sherlock9

03:08

@Dennis I have much to learn about chains. Everything after $ was confusing :$

Kenny Lau

@Sherlock9 How may I help you clear your mind?

quartata

Nice. Could you pack the file path maybe?

Maltysen

@quartata probably

Sherlock9

Nah, I just don't yet understand Jelly and J and such

Kenny Lau

@Maltysen Why don't you make a chat mini-challenge?

Sherlock9

03:10

I imagine if I took time to read the docs, I'd understand it better

Kenny Lau

@Sherlock9 How could I help you? Maybe you could give an example task and I could tell you how to do it in Jelly

Don't we all love this?

Sherlock9

QUIPUS! MWAHAHAHA

Kenny Lau

well...

Sherlock9

Actually, let me read through the Jelly docs

Kenny Lau

too complicated

Sherlock9

03:10

I'll ask if I get stuck

Kenny Lau

cool

Maltysen

@quartata ." seems to be borked with slashes

¯\_(ツ)_/¯

quartata

Huh

Kenny Lau

."/w
îíY4Ý'@ðÀ@é"

oops, too many unprintables

Maltysen

@KennyLau try running that

it gives something weird

Kenny Lau

03:15

because they're unprintables?

Maltysen

@KennyLau no, I mean copy paste the stuff from the interpreter into the code box and run it

quartata

Post a hexdump of the utf 8 version

Maltysen

it preserves the unprintables, but it doesn't work

ohhh newlines, it should be code point 13, buts its turning into 10

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

Shortest Pangrammatic Window A pangram is a sentence or excerpt which contains all twenty-six letters of the alphabet, as is demonstrated in this code golf challenge. However, a pangrammatic window is a pangram in the form of some segment of text, which may end or begin halfway through a word, f...

Kenny Lau

[46, 34, 47, 119, 13, 128, 238, 237, 89, 52, 221, 132, 39, 64, 17, 240, 25, 192, 64, 233, 34]

quartata

03:17

How did you access the dictionary?

Eᴀsᴛᴇʀʟʏ Iʀᴋ

Can somebody tell me what a spherical is in python?

I keep seeing them....

quartata

Global. You have xkcd substitutions on

Maltysen

@EᴀsᴛᴇʀʟʏIʀᴋ a what? link plz

Kenny Lau

lollllll

Eᴀsᴛᴇʀʟʏ Iʀᴋ

idk

Maltysen

03:19

XD

Eᴀsᴛᴇʀʟʏ Iʀᴋ

@Maltysen no links

wait brb finding CR link

Sherlock9

xkcd substitution on global?

How do you turn on/off xkcd substitutions?

Eᴀsᴛᴇʀʟʏ Iʀᴋ

shit

>_>

@Sherlock9 thank you.

Sherlock9

Thank quartata. They pointed it out first

I was just asking a follow-up question haha

Kenny Lau

chat mini-challenge: all substrings without built-in

4 bytes in Pyth

Sp3000

03:29

That'd depend a lot as to what counts as a builtin

Maltysen

@KennyLau s{./

^ uses partition built in

Sherlock9

Yeesh. 53 bytes in Ruby ->s{(1..s.size).map{|a|(0..s.size-a).map{|i|s[i,a]}}}

Kenny Lau

@Maltysen

> ./ <seq> Partition. Return all divisions of A into disjoint substrings.

Sp3000

> That'd depend a lot as to what counts as a builtin

Kenny Lau

well, alright

my solution was }#Qy

@Sherlock9 Does Ruby really need that much?

Sherlock9

03:35

There's probably a golfier way and I just don't know it

zyabin101

Hello

Kenny Lau

hi

is there any way to recursively do this?

Sp3000

Yes, but it just might not be golfier

Kenny Lau

I'm still interested

Sherlock9

Working on it

Kenny Lau

03:45

nice

Sherlock9

Recursively doing what usually requires a nested loop is a pain

Kenny Lau

this may help:

nCr = (n-1)C(r-1) + (n-1)Cr

Sherlock9

You want all substrings? Not just every consecutive substring?

"qwerty" -> [["q", "w", "e", "r", "t", "y"], ["qw", "we", "er", "rt", "ty"], ["qwe", "wer", "ert", "rty"], ["qwer", "wert", "erty"], ["qwert", "werty"], ["qwerty"]]

Kenny Lau

what is the difference?

Sherlock9

"qwerty" -> [["q", "w", "e", "r", "t", "y"], ["qw", "we", "er", "rt", "ty", "qe", "qr", "qt", "qy", "wr", "wt", "wy", "et, "ey"], etc.]

Kenny Lau

03:50

oh, all consecutive substring

those are subsequences

Sherlock9

Ah, thanks

>>> f=lambda s,a=1:s and a<=len(s)and f(s[1:],a)|{s[:a]}|f(s,a+1)or set()
>>> f("qwerty")
{'er', 'w', 'qwe', 'e', 'qwerty', 'qwert', 't', 'rt', 'qw', 'ty', 'wert', 'q', 'werty', 'erty', 'we', 'y', 'ert', 'wer', 'rty', 'r', 'qwer'}

67 bytes starting at lambda :/

Maltysen

@Sherlock9 replace ` set()` with {""}

Sherlock9

@Maltysen 65 bytes, thanks: lambda s,a=1:s and a<=len(s)and f(s[1:],a)|{s[:a]}|f(s,a+1)or{""}

Kenny Lau

thanks

all_substrings(a) = map(lambda b:a[0]+b,all_substrings(a[1:]))+all_prefix(a[1:])

would this work?

f=lambda s:s and f(s[:-1])+[s] or[]
g=lambda s:s and map(lambda b:s[0]+b,f(s[1:]))+g(s[1:])or[]

Sherlock9

04:13

Oops, for recursive that should be f=lambda s,a=1:s and a<=len(s)and f(s[1:],a)|{s[:a]}|f(s,a+1)or{""} for 67 bytes

And for Ruby at 89 bytes g=->s,a=1{s=s.chars;s[0]&&s[a-1]?((g[s[1,s.size]*'',a]+[s[0,a]*'']+g[s*'',a+1])‌.uniq):[]}

Kenny Lau

nice

challenge: multiplication in Retina

New Main Posts

0

Q: Needs more jQuery!

Inspired by this site, this question could potentially be a doozie. People on StackOverflow often overuse jQuery as an answer. Therefore, we need a way to recognize programmatically if a code snippet uses jQuery. Given a string (which may or may not contain new lines,) of valid Javascript, dete...

Geobits

04:31

... hmm

Alex A.

... hmm

Maltysen

hmm?

Quill

... hmm

Geobits

Wow, I'm such a trend-setter. First people start face chains, now this.

Fatalize

05:08

@AlexA. There's probably something I wouldn't mind eating, yes ( ͡° ͜ʖ ͡°)

Alex A.

05:22

@Fatalize ಠ_ಠ

Fatalize

honhon

Alex A.

What is a honhon?

Fatalize

Hon hon hon

►

(no one laughs like that)

Alex A.

They don't? :(

Fatalize

no

Alex A.

05:24

There goes everything I thought I knew about the French

Fatalize

we don't even know that they think we laugh like that

Alex A.

Wait, what

The French don't know that people think the French laugh like that?

Fatalize

Yes

Alex A.

o_O How?

Fatalize

Outside of people like me that know this dank meme

because we don't know it

no one laughs like that

it's just not a thing here

Alex A.

05:29

How disappointing

2

Maltysen

^

Geobits

Next you're going to tell us that kids don't start smoking at age three :/

Fatalize

huh no not three

it's bad but not that bad

13/14 some kids do though

Alex A.

How old do kids start drinking wine and eating stinky cheese?

Fatalize

looks at @EᴀsᴛᴇʀʟʏIʀᴋ

cheese, I guess 5/6

wine it depends on the family, some give you a taste before 10

but really getting served, probably more around 16

Sp3000

05:32

@KennyLau github.com/mbuettner/retina/wiki/Tutorial:-Unary-arithmetic

Alex A.

People here drink at 16, it's just not strictly legal :P

>_>

Kenny Lau

@Sp3000 Thanks.

Fatalize

it's not illegal here

selling alcohol to minors is

Alex A.

What's a minor there?

Fatalize

18

Alex A.

05:33

Oh, okay

So you can drink wine and stuff but you can't pay for it?

under 18

Geobits

Man, I wish I could drink without paying for it :/

Fatalize

yes

kinda

Alex A.

What a magical place

Fatalize

it's probably not 100% legal but no one cares that you give alcohol to your son at a christmas party

cops would laugh

Anonymous

Apparently my latest Actually answer looks enough like gibberish to trigger the human verification

Fatalize

05:35

@Geobits we told you to stop drinking ಠ_ಠ

Geobits

There was no "we", it was just you. If you recall, I responded with a "no".

Alex A.

No, we told him to stop smoking

Anonymous

Drinking is fun

Fatalize

Alcohol is bad ಠ_ಠ

Alex A.

You don't drink?

Geobits

05:36

In excess, yes it is.

Fatalize

never have

not a single drop

Anonymous

My gf and I have started a weekly ritual: we watch bad horror/sci-fi movies on Friday night and drink to get through them

Anonymous

I made myself a very potent Long Island... The movie got really enjoyable about halfway through (the cup, not the movie).

Geobits

I had a couple drinks earlier, but nothing serious :)

Alex A.

I drink often but never enough to get drunk

I dislike being drunk

Fatalize

05:37

maybe you would be right more often if you were

Anonymous

I've never gotten fully drunk. I always stop before I get that far, because it's much more fun to just be mentally lubricated while still coherent and aware of my surroundings.

Anonymous

Also I'm a heavyweight when it comes to alcohol, so getting drunk is expensive

Fatalize

"mentally lubricated" ( ͡° ͜ʖ ͡°)

Alex A.

XD

Anonymous

I stay right at the top of the Ballmer peak :P

Alex A.

05:39

@Fatalize If you don't mind me asking, do you abstain from alcohol, tobacco, etc. for religious reasons?

Fatalize

I weigh 55kg and have never drank alcohol, one glass would probably destroy me

Anonymous

Climbing the Ballmer peak is the closest I'll ever get to mountain climbing

Fatalize

@AlexA. Certainly not, I despise religion

I abstain from it for personal reasons

Geobits

I have gotten very drunk. Trust me when I say you're not missing much.

Sherlock9

Dang, which message do I star, the original "mentally lubricated" or the lenny face? I want to star responsibly

Anonymous

05:39

I weigh about double. It takes 2-3 drinks for me to start feeling it.

Alex A.

@Fatalize Oh right, I forgot who I was talking to. We were talking about Necrophagist et al. the other day. ;P

Fatalize

I'm the one that caused the shitstorm the other day

I should stop speaking about religion

:p

Kenny Lau

@AlexA. Why do we need religion to realize that alcohol and tobacco are bad for our health?

Geobits

How did I miss a religion shitstorm? Dammit...

Anonymous

Alcohol and tobacco, along with many other things, are bad for your health in excess

Sherlock9

05:41

I'm quite glad to miss a religion shitstorm. I have contradictory views in my head and I'd got too much other stuff to do to bother sorting out the cognitive dissonance

Anonymous

They're just special because the excess level is very low for them

zyabin101

@Fatalize S**tstorm?

Fatalize

@AlexA. I have this poster over my bed ( ͡° ͜ʖ ͡°) (jk I certainly don't)

Sherlock9

There's code to golf, dammit!

Alex A.

@KennyLau What Mego said. The people I know that are vehemently opposed to both are very religious people so I wondered if there was a correlation.

@Fatalize Oh god is that Varg Vikernes??

Fatalize

05:43

It is

Alex A.

Dude's insane!!

Fatalize

He lives in France now, for some reason

Alex A.

Is he not still wanted for murder?

Fatalize

A very aryan country... oh wait it never has been

zyabin101

@Sherlock9 Then golf this code, dammit!

Fatalize

05:43

No he served his 20 some years

Anonymous

I don't smoke. I am of the opinion that smoking is a very bad thing to do to one's body. My friends know that I hold this opinion, and that I would support anyone who was trying to quit smoking, but I don't chastise people who smoke.

Alex A.

Only 20 years for multiple homocides? o_O

Quill

@AlexA. same ( ͡° ͜ʖ ͡°)

Fatalize

He only killed one guy

Alex A.

Oh

Fatalize

05:44

(and burnt some churches but I think he wasn't convicted for that)

Quill

that was an interesting conversation to catch up on

Geobits

@Mego Stop being so sensible.

Fatalize

@Quill reported for underage drinking

Alex A.

I could have sworn he killed more than one person

Anonymous

I drink, but not very much. I only have a significant amount of alcohol about once per week, if that. Like smoking, I believe excessive drinking is a bad thing to do to yourself, and I support people who want to kick the habit, but I'm also not going to try to make people stop drinking.

Fatalize

05:45

If you report someone for underage drinking do the cops come and detain them?

Sherlock9

@Mego I used to chastise, realized first that it wasn't doing anything useful, then later that I was being an asshole

Maltysen

@Fatalize @Quill is underage?

Alex A.

@Fatalize Only if you have evidence

zyabin101

in Three Word Chat, May 10 at 0:52, by A Nerd - I

Hello there @NewMainPosts

Sherlock9

Occasionally having breathing trouble puts you off smoking fast

Quill

05:46

@Fatalize no

Fatalize

@Maltysen don't know but his message makes it seem like he did drink alcohol underaged ( ͡° ͜ʖ ͡°)

Anonymous

Partly because I am very against trying to force my views upon others, and partly because I know that the only way someone will quit any vice/habit is if they make the decision themselves, rather than the decision being forced upon them by those around them.

Quill

It's not underage to drink alcohol as long as a parent buys it for you or something

zyabin101

Hello @NewSandboxedPosts :P

Quill

Something about not being a public place and the property owner being okay with it

Or at least that's for Australia

Fatalize

05:47

oh

Geobits

@Mego That's really really true, too. I've had several people try to get me to quit in the past, and it always leads to bad feelings, whether that's right or wrong.

Fatalize

wait you're australian that doesn't count then

Quill

@Fatalize ;-;

Alex A.

TIL Fatalize hates everyone

Fatalize

not everyone, remember ( ͡° ͜ʖ ͡°)

zyabin101

05:48

( ͡° ͜ʖ ͡°)

Alex A.

Everyone but a particular vegan... and not me ;-;

Quill

Most of my friends are of age but I'm not.... ;-; so I just don't buy it

Geobits

It's the same way in some states here. Parents can buy alcohol for their kids in quite a few. They just can't be drunk in public or anything.

Fatalize

No one likes you @AlexA.

Alex A.

:(

Fatalize

05:48

hides from the banhammer

Anonymous

Underage drinking laws/regulations/enforcement vary by locale. In Texas (where I live), it's acceptable for minors to drink so long as 1) it's not in public, 2) they don't go in public while inebriated, and 3) they don't purchase it. It's technically illegal even with those provisions, but it's not enforced.

Geobits

That's not true. Everyone likes Alexa.

Quill

We can be drunk in public as long as we don't have the alcohol on us. The same as being high, IIRC

Anonymous

I like Alex. He's a swell bird.

zyabin101

@Fatalize struck by banhammer

Fatalize

05:49

@Mego "In Texas (where I live)" insert joke on Texas here

zyabin101

ohai @RenderSettings

Anonymous

:P

Quill

@Fatalize Alex and I will always have a special bond because he is a bird (with feathers) and I am a Quill (made of a feather)

Anonymous

Not every law on the books is enforced. There's whole websites dedicated to silly, antiquated laws that are technically still on the books, but aren't enforced because they're unenforceable/unconstitutional.

Anonymous

dumblaws.com

Anonymous

05:51

It's exactly what it says on the tin

Quill

Hon hon hon la baguette

►

Fatalize

@Mego why am I not surprised

Maltysen

New Jersey:

> It is illegal to wear a bullet-proof vest while committing a murder.

Geobits

What the hell am I watching??

Anonymous

@Fatalize That one is a holdover from when Texas was a sovereign nation, iirc. It's obviously unenforceable due to unconstitutionality.

Fatalize

05:52

> It is illegal to milk another person’s cow.

Well damn ( ͡° ͜ʖ ͡°)

Quill

> Taxi cabs are required to carry a bale of hay in the trunk.

Alex A.

> The harassing of Bigfoot, Sasquatch or other undiscovered subspecies is a felony punishable by a fine and/or imprisonment.

Quill

> Under Australian Communications Authority (ACA) regulations, a modem can’t pick up on the first ring.

All these years I thought people just didn't want to talk to me.... oh wait it doesn't say 14th ring

Fatalize

lmao the first one for France

> In ads for products that contain salt or sugar, it’s mandatory to include that you should exercise and eat at least 5 fruits and vegetables a day

do people really think it's weird???

Geobits

It is weird, so yes.

Quill

05:55

> Since 1313, MPs are not allowed to don armor in Parliament.

Fatalize

It worked though, everyone knows that motto of eating 5 fruits and vegetables per day

Geobits

Having to include obvious warnings or advice on labels for what should be common sense is weird, no matter how noble.

Quill

> Excluding Sundays, it is perfectly legal to shoot a Scotsman with a bow and arrow.

Anonymous

And now the inebriation has faded to a headache. Urge to make a gin and tonic rising...

Quill

uh wat

Anonymous

05:55

@Quill Ireland?

Geobits

@Mego Ugh. All I have in the house is clear bacardi and no mixer. You have at it.

Quill

@Mego UK

> It is legal for a male to urinate in public, as long it is on the rear wheel of his motor vehicle and his right hand is on the vehicle.

Anonymous

@Geobits Today was payday for both me and my gf. We celebrated by going out to eat for the first time this month and restocking our liquor cabinet.

Fatalize

Groundskeeper Willie: Damn those Scots

►

Anonymous

@Quill Well that just seems sensible.

Quill

05:56

@Mego Oooh, what'd you have for dinner

Anonymous

@Quill Italian s

Geobits

@Mego Nice. What on earth are you doing in here? Enjoy the evening :)

Fatalize

@Mego "eat for the first time this month"

Anonymous

@Geobits It's 1 AM. She's already unconscious. I'm still awake because I'm a night owl.

Fatalize

you're resilient

Quill

05:57

dumblaws.com/laws/international/korea-south

Geobits

@Mego Ha, fair enough.

Anonymous

@Fatalize "going out to eat for the first time this month"

Anonymous

Quoting works better with context

Geobits

@QPaysTaxes quarter

Quill

@QPaysTaxes IndecisiveError

Anonymous

05:58

@QPaysTaxes Warning

Anonymous

Now I'm just reading SE and Reddit while petting my cat

Kenny Lau

@QPaysTaxes I think I've seen such a thing before... it's on the tip of my tongue.

Alex A.

Exception?

In between warning and fatal

Fatalize

non-lethal error

Geobits

debug, info, warning, crippling, fatal

Fatalize

05:59

debilitating

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