The Nineteenth Byte

emanresu A

00:27

Can someone explain codegolf.stackexchange.com/tools/post-feedback/… to me?

What's the difference between votes and 'feedback'?

hyper-neutrino

feedback is when low rep people try to vote

i think

lyxal

What's the point of feedback if you never get to see it

emanresu A

@hyper-neutrino ... why???

hyper-neutrino

wdym why

emanresu A

What's the point of recording new users attempting to vote? A user with <15 rep probably won't try to vote in the first place.

And if they do, it's almost certainly going to be an upvote instead of a downvote

hyper-neutrino

00:41

well i wouldn't say 69% is "almost certainly"

Redwolf Programs

YT with the unbiased polls again

emanresu A

00:58

@hyper-neutrino I forgot about assoc bonus users

OldSandboxPosts

Sandbox posts last active a week ago: Newton Polynomial

lyxal

because I love using donuts to calculate areas under curves

emanresu A

No, Homer Simpson's rule is that integration is painful.

lyxal

d'oh! I knew i got it wrong

emanresu A

Relevant xkcd

hyper-neutrino

01:10

actually relevant xkcd that isn't an overused joke

emanresu A

Ik, look at the edit history

Why do you think it's the right number?

New Posts

0

Q: Is it a prefix normal word?

Prefix normal words arise in the context of binary jumbled pattern matching. A binary word \$w\$ consisting of \$0\$s and \$1\$s is said to be prefix normal * if, among all of its substrings, none contains more \$1\$s than the prefix of \$w\$ of the same length does. In other words, if \$w\$ cont...

lyxal

Because the second derivative just doesn't exist

emanresu A

...

lyxal

it just can't be calculated

it definitely isn't option A

because option A totally isn't the correct answer which I totally didn't put

emanresu A

01:22

I warn you now, trigonometric substitution will destroy your mind

lyxal

not up to that yet

emanresu A

That's why I'm warning you now

DLosc

@emanresuA But if you survive the experience, you will become enlightened. ^_^

Trig substitution is highly counterintuitive at first, and it often doesn't work, but when it does work it's magic.

rak1507

it's not that counterintuitive is it? it's just like regular substitution

DLosc

The counterintuitive part is that you start out integrating an expression that has nothing to do with trig functions.

rak1507

01:34

fair enough

I mean, it depends, a classic trig sub is something like sqrt(4-x^2) which obviously is related to trig functions being the graph of a circle

DLosc

It wasn't obvious to me when I first encountered the concept.

Mainly, I think, because differentiating the same function just requires use of the chain rule + power rule.

So it's easy to look at it as "oh, this is a modified polynomial, it should be easy"

And then the way to integrate it it something wildly different

rak1507

if you didn't know trig sub and you were asked to find the integral of some trig sub questions you'd do it geometrically probably, so while the trig sub method isn't obvious, the connection can be

thejonymyster

02:14

@EphraimRuttenberg i wish itd show a picture of the move

Redwolf Programs

03:14

Ooh, just remembered a very poor design choice I made when making Ash

When an array was cast to a number it'd take the sum, which I think is perfectly sensible. But addition didn't vectorize by default. So adding 2 + [1, 2] would give you 5

hyper-neutrino

yeah that's very cursed

emanresu A

03:49

^

Redwolf Programs

You're so good at reviewing you deleted it with your mind

3

PyGamer0

@RedwolfPrograms i have ideas for some sort of trains to dinoux, idk if they are necessary at all lol

Redwolf Programs

Trains as in tacit-y stuff?

PyGamer0

yes

Redwolf Programs

If you're already using stack-based or prfix/postfix, I'd recommend sticking with those

PyGamer0

03:59

makes no sense right?

@RedwolfPrograms has anyone tried stack-based + tacit?

Redwolf Programs

Probably not, because that wouldn't really make sense

The whole point of tacit is that it doesn't need variables or a stack to hold the arguments

hyper-neutrino

stack based is a subset of tacit lol

but train-y tacit-y stuff like the functional APL/J/K/Jelly system, that doesn't go well with stack-based like redwolf said

Redwolf Programs

Sort of, although I'd consider postfix to be tacut and stack based a way to implement postfix

Although that's a really pointless distinction

hyper-neutrino

that's... fair enough although i don't like associating stack-based with postfix either LOL

Redwolf Programs

I could see the fancier tacit-like structures being used in a stack based language to compose operators in some way, but it'd be really weird

Like you'd have a chain of links, and each link would take its arguments from the stack

But the links themselves would be tacit (using tacit here to mean APL/J/K style tacit, obviously)

PyGamer0

04:05

i will just embed jelly then ˙ᓀ˙

lyxal

04:46

I have an idea of how you'd merge stack and tacit, but I have no idea if it's actually useful/good for saving bytes

Just have a transformer that collects elements until the end of a chain is reached (what delimits the end of a chain is up to you to determine)

(transformer is just what I call postfix operators)

hyper-neutrino

anyfix had a cursed method of keeping a stack of both values and functions so if you did 1 2 + it would push 1 and 2 and then add them, if you did 1 + 2 it would push 1, push the +, and then when it processed 2 it would find + and use the 1 to push 3, and if you did + 1 2 it would push the + and then 1 and then process 2 and add them

not quite tacit-stack combination like you're suggesting but it reminded me of that

emanresu A

05:58

@RedwolfPrograms :P that's what happens if you leave GRT for ann your

Why did everyone star chat.stackexchange.com/transcript/message/59377561#59377561?

PyGamer0

06:58

CMQ: What do you think ⍨ does in dinoux??

pxeger

swap two items

PyGamer0

did you guess?

pxeger

I read that in your docs page a while ago lol

but it makes sense IMO

PyGamer0

i knewitlol

lyxal

@emanresuA because people star anything lol

Heck, they might even star this message that I wrote by hand

" But lyxal...how do you write messages by hand?"

Using modern technology Tm

Admittedly, there's a few flaws

Like not recognising Unicode

But it mostly works (except for the hand cramps ofc)

New Posts

07:14

0

Q: Lottery Ticket Problem

Write a program that will accept 5 positive numbers from the user between [0,9] inclusive for a lottery ticket. Implement error checking to ensure the numbers are between the specified range. If any input is outside of the range immediately exit from the program notifying the user there was an in...

programming-puzzle functional-programming

lyxal

@NewPosts it'd be cool if this was an original question. But alas, it isn't

Very sad

emanresu A

08:04

@lyxal How'd ya find that?

-14

A: Ignore chat pings found in links

Here is a probable solution to your feature-request Instead of completely disabling the stealth-ping feature on chat, the users should have the ability to choose whether or not they want the stealth-ping to affect them or not. This means that all stealth-pings will appear to users (you can see w...

...

Stealth pings are a bug, not a feature. — Dennis Nov 29 '15 at 19:46

Hm, a new random thing has made it onto the search results for 'lyxal'.

lyxal

@emanresuA copy and paste text into search bar ez

emanresu A

Also a square bagel???

Idk even what that is

lyxal

08:28

lol

Neil

09:31

CMC: Richard is raising money for charity. Their current total is $1051, of which he has raised $43. How much more money does he need to raise to reach 5% of the total? Write your answer as a full program or function that takes the values 1051, 43 and .05 as inputs. Please round output up to the next whole dollar.

emanresu A

This sounds like a homework problem

Anush

then we should do it quickly!

there might be a deadline :)

PyGamer0

@Anush óòf

Anush

09:55

:)

PyGamer0

CMC: Given x,y coordinates of 3 points (a,b,c) on a 2d plane (assuming they lie on any quadrant), find a point d such that the distance(a,d)=distance(b,d)=distance(c,d).

emanresu A

So basiically, find the center of the circumscribed circle?

PyGamer0

@emanresuA yes

Anush

10:11

CMQ given two sets of points, one lying on one straight line and another lying on another straight line, can we find the two lines?

pxeger

depends how many points you've got

Anush

10:29

@pxeger let's say 10 in each set

so 20 in total

are you thinking brute force?

pxeger

it is possible to construct a set of points for which that is impossible

in fact, that's impossible for almost all sets of points

Anush

@pxeger impossible in what sense? Clearly you can split the combined set in all possible ways and try to draw two straight lines for each split

that works but is very slow

CMC make sets of 2d points at integer coordinates so that there is a straight line through the points in each set. Each set should have three points and no two straight lines should be parallel.

your code should in theory produce these sets forever

pxeger

10:45

@Anush well you just choose 20 points that aren't on a line

or do we assume they're already on a line

Anush

12:59

@pxeger yes you should assume that

user

@lyxal Are tgese screenshots a ploy to get tnb to help you with quizzes?

Neil

13:38

if someone has since deleted the comment you're trying to @ reply to, do they get notified or not?

user

I think it's just a plain @asdf then instead of pointing to that comment

pxeger

@Neil yes

in fact, I can still see the content of the messages in my SE inbox, even though they were deleted

user

15:13

@emanresuA 1. Make userscript to help out 2. Fail 3. ??? 4. Crippling loss

user

15:41

Apparently, I lost 8 reputation because a user was removed. Wonder how that happened

hyper-neutrino

my guess is that you got 8 reputation from that user and then they were removed so you lost that 8 reputation (:P)

user

Damn, never thought of that. Thanks, hyper-neutrino, you're being helpful as always! ಠ_ಠ

Oh I'm dumb they probably upvoted and downvoted me

hyper-neutrino

oh wait i thought that was obvious ಠ_ಠ mb

user

Aug 27 at 22:00, by user

i dum

^ Only obvious if not dum :P

Interesting, searching for dumb and dum return different results, so it looks like chat tries to match whole words instead of only looking at substrings

That might explain why searching for stuff like e doesn't work

Someone really needs to fix chat's search feature :|

hyper-neutrino

16:07

Someone really needs to fix chat---'s search feature--- :|

exhibit A: ^

user

lol

Anush

Now we have Lean, could we have Isabelle soon?

hyper-neutrino

like you mean for lotm or what

Anush

Yes

Lotm I mean

hyper-neutrino

well you can propose it if you want lol

Anush

16:19

Lol because no one would accept it?

user

~~And make sure to create lots of sockpuppets to upvote~~

@Anush Then I guess we wouldn't have Isabelle soon ¯\_(⍨)_/¯

Anush

@user I used to love sock puppets! Don't diss them

user

Sorry, I meant alt accounts

hyper-neutrino

well the whole point in LotM is that people need to approve of it and vote for it so you can propose any language you want (well within reason) but I can't say if it'll be voted for :P i've never heard of it myself

user

^ You never know, Isabelle may become really popular

hyper-neutrino

16:21

well i also can't say that it won't be voted for :P

user

Just propose it and let the people decide. CGCC is a participatory democracy, your comrades know best :P

@hyper-neutrino Sure, but you miss 100% of the shots you don't take

Huỳnh Trần Khanh

ah Isabelle. I've heard good things about Isabelle. i heard that its proof automation capabilities are really good and even better than lean. too bad, I can't find a way to learn about it

user

You also miss 100% of the shots you do take if you're as bad as me, but that's a different story :P

hyper-neutrino

@user well I did say that Anush could propose it if they want to potentially see it as an LotM :P

Huỳnh Trần Khanh

interactive theorem provers are so poorly documented, unfortunately

hyper-neutrino

16:23

people can't vote for a post that doesn't exist

user

@HuỳnhTrầnKhanh Then peer pressure Anush into proposing it for LotM and making you learn!

Huỳnh Trần Khanh

lol

user

@hyper-neutrino What, that isn't a mod power? smh

@HuỳnhTrầnKhanh They're pretty niche. Lean's docs aren't terrible though

Huỳnh Trần Khanh

yeah

user

I hate it so much when something only has binaries for Mac and Linux but not Windows :(

pxeger

16:32

I love it so much when something only has binaries for open-source kernels and not malware developed in Redmond :)

user

>:(

> Mac

> open-source kernels

pxeger

github.com/apple/darwin-xnu

user

Huh

It's quite a stretch to call Windows "malware" just because it's not open-source, though. It's a perfectly fine OS

pxeger

it is installed on my hardware where I don't want it to be

(but yes, I was being facetious)

user

Aren't there laptops that come with Arch installed? (assuming that's what you want)

pxeger

16:37

I mean you can just buy laptops without storage builtin

they necessarily don't have Windows pre-installed

user

That too

No need to buy laptops with Windows preinstalled (although it's probably easier to find such a laptop)

I wonder if you can get HP to remove Windows and charge you less for it. Probably not

Huỳnh Trần Khanh

16:50

actually if you buy laptops in bulk you can ask the manufacturer to install a custom operating system or provision certain software or whatever... isn't this common practice in large companies?

pxeger

yeah probably

I don't think that would work very well for just me to buy just one laptop with just arch linux on it lol

Huỳnh Trần Khanh

lol

user

17:56

@pxeger Then buy 100 and sell 99 of them :P

Sandbox Posts

18:27

0

A: Sandbox for Proposed Challenges

Play RPS with 3 bits of memory king-of-the-hillrestricted-memory This is a rough draft for now, the specifics, presentation and title will probably be adjusted In this game you will be building bots to play rock paper scissors against each other. Of course rock paper scissors is not a very inter...

Sandbox Posts

19:24

0

A: Sandbox for Proposed Challenges

Integer points on Hyperspheres Given two non-negative integers \$r\$ and \$d\$, write a program that will output the number of integer points that lie on all hyperspheres of dimension \$d\$ or lower with radius \$r\$ or lower. For example, given \$r = 5, d = 2\$, the program would do something li...

user

I don't use it... Google Drive is good enough for me for archives and I store 100% of my code in my computer as simple fies, and my IDE has somewhat of a "git commit". I do have git just in case. — Shambhav Gautam May 1 at 5:11

:o This person (or should I say git?) uses Google Drive as a replacement for git

pxeger

"I do have git just in case" ?!

git isn't a backup system!

Unrelated String

21:26

there is an absolutely disturbing number of people who simply refuse to use version control
by which i mean at least two

there's a friend-of-a-friend who intermittently develops some kind of game where he just posts zip files with version numbers in a discord channel which is also used for some kind of primitive bug reporting

user

21:39

Wait really? Did you suggest using git+Github?

Unrelated String

22:01

yep

i can't even remember why he refused to

and i think he even collaborates on it with some other people who... i don't even know what they do

i don't think it's some kind of synchronous method like atom teletype
i think they literally just take the version he publishes, mess with it, then email the result back
????????????????????????????????

hyper-neutrino

and here i thought my dev practices were cursed

Unrelated String

lol

lyxal

22:34

@user well if they were, you'd need a time machine to actually tell me the answer, because I posted those after i submitted the quiz

user

I probably can't even solve the rest of the quiz let alone build a time machine :P

@UnrelatedString Anything but Floobits

Apr 4 at 21:35, by Original Original Original VI

It gets even worse when you're trying to edit something with someone else at the same time, so you upload your repository to Floobits and then you need to pull from GitHub and Floobits every time you do something and then push to both places each time and when you have a merge you find the latest version in both places and copy it to a separate folder and manually edit in the changes and then commit and then realize it doesn't work and then you throw the laptop out the window and follow it down

lyxal

@user stoopid, those were the last questions in each quiz, meaning there was no rest of the quiz. Now go build that time machine

Unrelated String

22:50

oh no

user

@lyxal If I'm stoopid, how do you expect me to build a time machine?

Checkmate :P

I'm back! Unfortunately, past lyxal was a weirdo who, for some reason, just could not comprehend someone popping into existence and immediately trying to take his laptop away from him smh

Kept screaming stuff like "wtf are you doing here," "No, not my beloved plates!," and "2+2=4, not 5, you idiot"

Do people not get visits from time travelers too often in Australia?

lyxal

@user not that I know of

user

23:12

Well I'll just blame your overreaction on that then ¯\_(ツ)_/¯

Long story short, I was unable to help you because past you refused to give me the password to your laptop so I could enter in the answers and then called the police on me

You do still owe me a $10 cancellation fee and a $3 inconvenience fee

lyxal

@user cancellation?

user

Your past self cancelled our agreement

lyxal

Oh

Do you accept kromer?

user

Kroner?

lyxal

Kromer

user

23:19

No

lyxal

@AaroneousMiller help me explain kromer transmission

user

I love how this CreepyCodeCollection repository includes a link to CGCC and Anarchy Golf

New Posts

23:35

0

Q: Create the edge of a square near the rays with CSS

I'm not good at CSS, but I think this problem is a little challenging even for some people with more experience. I imagined a geometric figure, a square, but with the edge a little different from the usual one, I thought about the presence of edges near the rays. Maybe if you think like that it c...

geometry css

Adám

@user 0/10 – no APLs or golfing languages.

user

23:52

Those are implicit in the CGCC link

Besides, I thought you'd be happy that APL was mentioned as a "creepy" language :P

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