The Nineteenth Byte

flawr

16:11

@Riker best if combined

Pavel

@AdmBorkBork If I define a function foo, how do I get what's being piped into it like echo "something" | foo?

AdmBorkBork

$input

stdio in PowerShell is weird

Pavel

Thanks

@AdmBorkBork My quest fo replicate alias grep="grep --color" continues. I'm currently at function grep { $input | /usr/bin/grep $args --color }, please tell me if there's a better way.

@AdmBorkBork Wait, that doesn't work if I'm not piping anything into the function

AdmBorkBork

Yeah ... stdio in PowerShell is weird

You could try doing a param($a) instead of $input

That should work in what you're describing

Pavel

@AdmBorkBork Nope

AdmBorkBork

16:23

Then you'll need to send $a | through the pipe

Pavel

 $ function f{ param($a); $a }
 $ "foo" | f

Got nothing

AdmBorkBork

OK, last option would be to do function f($a){$a} and try that

Pavel

Neither of those read input, piped or terminal

AdmBorkBork

OK, the literal only thing left is the $args variable, where $args[0] is the first command-line argument, but that shouldn't work in this case because you're not calling it via command-line arguments.

Pavel

I think i'll just write shell scripts and put them in PATH

AdmBorkBork

16:26

You might be stuck with an if/else surrounding the $input

Pavel

Ooh, that could work.

AdmBorkBork

Like, if($input){$a=$input}else{$a='foo'}; $a|grep blah blah

Pavel

Is there a ternary operator?

AdmBorkBork

You're looking at it.

Pavel

Oh well

AdmBorkBork

16:29

yeah

Pavel

Well I GTG, cya

PowerShell needs multi-word aliases

mınxomaτ

Hm, should I get GitHub Home or GitHub Small Business with Service Pack 3.

Adám

16:50

@mınxomaτ Neither, I'd go with GitHub 365 Business Essentials.

PhiNotPi

I'm a fan of GitHub Vista

Adám

@PhiNotPi Forget GitHub Vista. The word has moved on to GitHub 10 Developer's Edition.

mınxomaτ

@PhiNotPi A version of GitHub that's really just TFS with TFVC, presented as Git through a buggy PowerShell script no one touched in 3 years.

PhiNotPi

17:05

Someone should make version-control software that doesn't actually keep track of versions, but rather takes the current code and extrapolates backwards what it thinks the prior versions looked like.

Adám

@PhiNotPi Someone should make version-control software that doesn't actually keep track of available pulls, but rather takes the current code and extrapolates forward what it thinks the next version should look like.

Downgoat

17:28

Are most people here going to prematurely migrate to GitLab/Bitbucket?

From what I can tell MS wants to add their stuff with GitHub enterprise but they're not going ti charge $10 or every file on github

DJMcMayhem

@Downgoat I'm not. I'm going to optimistically hope that nothing or very little will change, and then jump ship only if necessary.

If I end up needing to make a MS account to continue using GH, I will be rather unhappy

Mostly because I've found that everything that has any relation to an MS account is waaay too hard to work with.

Downgoat

After the new CEO, imo microsoft aquisitions haven't been the evil terrifying thing they are set out to be

@DJMcMayhem you dont use windows?

DJMcMayhem

I do, but I like to use windows 10 entirely locally e.g. no onedrive and local accounts

And I also use 7 about half the time

Leaky Nun

CMC: Print the last n digits of the 10-adic number that ends ...5781249 that squares to 1.

Erik the Outgolfer

just a small question...is it possible?

2

H.PWiz

17:38

Is the digit before 5, 7?

Adám

@H.PWiz Decadic numbers are unordered, I think.

betseg

What's a 10-adic number

H.PWiz

@Adám I shold have said digit

Adám

P-adic number

In mathematics, the p-adic number system for any prime number p extends the ordinary arithmetic of the rational numbers in a different way from the extension of the rational number system to the real and complex number systems. The extension is achieved by an alternative interpretation of the concept of "closeness" or absolute value. In particular, p-adic numbers are considered to be close when their difference is divisible by a high power of p: the higher the power, the closer they are. This property enables p-adic numbers to encode congruence information in a way that turns out to have powerful...

Erik the Outgolfer

the comma unfortunately makes this specific question rather confusing...

like, "Is 7 the digit before 5?" or "What is the digit before '57'?"?

H.PWiz

17:42

Sorry, Is 7 the digit before 5?

Leaky Nun

@H.PWiz no

I think of 10-adic numbers being integers that go infinitely to the left

H.PWiz

@LeakyNun Is it 2 then?

Leaky Nun

just like how the real numbers are numbers that go infinitely to the right

@H.PWiz yes

AdmBorkBork

@DJMcMayhem You're missing out on a good chunk of Windows 10 features. Synchronized non-local document storage, profile migration to a new computer, etc.

Leaky Nun

@EriktheOutgolfer yes

DJMcMayhem

17:57

@AdmBorkBork So Google Drive? :P

Cows quack

@Adám it says r=p/q × 10^d and q is coprime to p, later down it takes p/q to be 1 to get other numbers, if p/q is 1 wouldn't they not be coprime to each other?

DJMcMayhem

Although Profile Migration sounds nice, the thought of having an OS tied to non-local accounts just sounds gross to me

Adám

@AdmBorkBork What if I only ever use a single computer?

AdmBorkBork

@Adám You'll still benefit from one account if you have an Xbox or Windows Phone (I know, I know), thanks to UWP games and apps. Additionally, you (afaik) can't use Cortana without a Microsoft account. If you have a family with kids, there's a lot of parental controls that require a Microsoft account.

DJMcMayhem

Actually, that last point drives me crazy. Trying to help my parents set up parental controls for my siblings was a nightmare.

Erik the Outgolfer

18:03

> Additionally, you (afaik) can't use Cortana without a Microsoft account [or while being in Greece].

dzaima

@AdmBorkBork so all I had to do to get rid of cortana was delete my microsoft account? o.O

Adám

@AdmBorkBork If I had an Xbox or Windows Phone I wouldn't be just using one computer, would I now? Funny enough, my only other electronic main device is also a Microsoft product, but afaik it doesn't support the concept of user profiles. I've eradicated Cortana from Windows 10 as much as I could.

AdmBorkBork

What's wrong with Cortana? I always hear people complaining about it, but never anything specific. People don't seem to have the same problems with Siri or Hey Google.

Erik the Outgolfer

> – Hey Cort, hey Anna! – I'm listening.

dzaima

@AdmBorkBork I use neither of those two either.

FreezePhoenix

18:06

@EriktheOutgolfer LOL

Adám

@AdmBorkBork My main problem with Cortana is that it found its way into my Windows computer. Owning no Apple or Android devices, I have much less of a problem with Siri and OK Google.

Erik the Outgolfer

> – OK, Google it is! – listening

@AdmBorkBork maybe because of upgrading to Windows 10, and people might not like sudden changes on their taskbars

Leaky Nun

@Cowsquack 1 and 1 are coprime

Cows quack

:/

DJMcMayhem

@AdmBorkBork Siri or Google are fine for phones. But I never wanted something similar on my desktop because I use my desktop for different reasons then I use phone.

Adám

18:09

> – I looked for it on Wikipedia, but didn't find anything. – OK, Google it! – listening

Erik the Outgolfer

> – Wow... I've never been here before, this is eerie. – *pling*
[From a vlog] – And, today, a surprise! I'm hosting a guest. Come in, Alexa!!! – *starts spying*

dzaima

@AdmBorkBork it's just an annoying thing that just gets in my way. Personally I don't see any use of it since I don't have a mic ever plugged in my computer so its a completely pointless use of flashy animations (and the taskbar icon suddenly changed from the search icon that aligned with Search Everything beautifully to an ugly circle...)

DJMcMayhem

For example, I mainly use google assistant for 1) Reminders, 2) If I need to call or text someone but I can't really type it out since I'm driving or using my hands for something else. 2 has no relation to desktop computers whatsoever, and if I used cortana for reminders, I wouldn't see the reminder when it mattered since I'm not looking at my PC as often as my phone

dzaima

@AdmBorkBork also, people will just complain by default about things that are forced on them

Adám

@AdmBorkBork I think the others at my office would be upset if I started to give voice commands to my PC.

AdmBorkBork

18:12

@DJMcMayhem See, if you had a Windows Phone, it'd show up. :p

@dzaima I think you've hit the nail on the head with that one.

dzaima

@AdmBorkBork also that my native language isn't english so it'd be kinda weird for me to be randomly shouting english things (not even talking with someone, just instructions)

Adám

@DJMcMayhem 1) I use my phone (which doesn't have Cortana) or the company shared calendar for reminders, 2) I don't drive.

Erik the Outgolfer

@Adám oh, is that really the main issue at hand? you know, you're talking to a computer

DJMcMayhem

@Adám You don't drive? Why not?

Adám

@DJMcMayhem Because it is illegal for me to drive.

Erik the Outgolfer

18:14

no driver's license...?

AdmBorkBork

@Adám Relevant link

Adám

@EriktheOutgolfer Correct.

Poke

@Adám is there rationale for that decision

Adám

@Poke Why should I bother getting a drivers license if I don't drive?

Erik the Outgolfer

I think he just hasn't bothered...awful ninja

Poke

18:16

You said you don't drive because you don't have a license... You can't then also say that you don't have a license because you don't drive

Erik the Outgolfer

(btw that's not really the connotation being illegal for you to drive implies)

Adám

@Poke I'm joking.

Erik the Outgolfer

I think Adám is an avid lover of cycling, and he's used to the tough winters of the UK

(maybe that's how he keeps fit)

Adám

The real reason is that when I went to high school and my class mates got licenses, I was too young. Then I moved to the US where everyone my age already got a license long ago. I've mostly lived in places with good or adequate public transit and cycling conditions, and I'm used to using it as we mostly didn't have a car when I grew up.

DJMcMayhem

I've never lived in a place with good public transit, so the idea of not having a license is so foreign to me

Erik the Outgolfer

18:21

@Adám "your class mates got licenses"? wow, that must have been real bad luck, like, them being stuck in a class for years

Adám

Also, when I went to rabbinical school, and some of my fellow students took lessons, I pointed out that my rabbi had successfully raised and married off all of his twelve children without him or his wife ever driving. (Not a religious thing; most people around me did drive.)

@EriktheOutgolfer ?

DJMcMayhem

@Adám Are you a rabbi?

Erik the Outgolfer

@Adám how did you manage to be underage when your class mates were already able to get licenses?

AdmBorkBork

I have a friend who doesn't have a license; she's in her early 30s and does the same thing -- public transit or cycling or walking.

Adám

@DJMcMayhem I have a BA in Rabbinical Studies. I don't have Smicha.

@EriktheOutgolfer Started 1 year earlier + skipped 2 grades.

Erik the Outgolfer

18:24

@Adám ok o_o how did you even manage that

Adám

@EriktheOutgolfer When I went to University, I had problems with some forms because they were not designed to require parents' signature :-)

DJMcMayhem

I had a similar experience. I was homeschooled, so I started taking community college classes when I was 16.

The first math-class I took in my life was pre-calc

Erik the Outgolfer

@Adám and your parents were like "how do I give consent now‽", given that you were legally unable to make a binding signature...

Adám

@EriktheOutgolfer Starting early, I guess I just, you know, did. And then they didn't learn anything in 0th grade (Danish school is 0-indexes) so I switched to 1st grade in a different school. Then I was homeschooled for a while, and when re-joining normal school (8th grade) they gave me 9th (the final) grade's final exam to make sure I would fail so that they could assess what I didn't know. But I passed, and they told my father they couldn't teach me anything; that I should go straight to high-school.

Cows quack

@LeakyNun I'm confused on how fractions with non-terminating expansions are converted into 10-adic ones

Leaky Nun

18:29

@Cowsquack "1/3" really means "x such that 3x=1"

"-1" really means "x such that x+1=0"

here we find that -1 = ...99999

Adám

@EriktheOutgolfer I don't remember what happened (it was half my life-time ago). I was Sweden's youngest high-school graduate.

Leaky Nun

so -1/3 = ...33333

so 1/3 = ...66667

New Main Posts

-1

Q: Remainders in javascript

guys, I'm new to programming languages and I was trying to explore Mathematical Operations in Javascript and when I try to find the remainder of 21 divided by 7, then the output it gives is 5. So please help me with that, or where I may be going wrong? //Remainder in Mathematical Operations...

Cows quack

ah that makes sense

thanks leaky

Adám

@NewMainPosts You should really check if a question has been closed before posting.

DJMcMayhem

18:35

Unfortunately that's not really possible since it's a feed rather than a bot

But I think posting closed challenges is still valuable. More eyes in case something was closed that shouldn't be

Cows quack

@LeakyNun so there are multiple roots of 1?

Leaky Nun

@Cowsquack 4 of them

Cows quack

o_O

Adám

18:58

Show me the bottom left corner of your screen after pressing the ⊞ button, and I'll tell you who you are:

Erik the Outgolfer

@Adám hmm... gets suspicious

Adám

@EriktheOutgolfer What? It's real, I assure you.

DJMcMayhem

I don't know why a lot of those actually come up. I never use wordpad, and I rarely use the 3 above it

I think my taskbar says a lot more about me

Erik the Outgolfer

have you ever used anything besides the first 5 entries? :P

that might explain the fact that they're still there from when you installed Windows

DJMcMayhem

First 5 from which direction?

Erik the Outgolfer

19:09

up...

AdmBorkBork

@Adám Pressing the Windows button brings up the fullscreen app launcher for me, since I'm on 8.1 here at work

DJMcMayhem

I use all of them but wordpad

Erik the Outgolfer

@Adám can you accept a Windows 10-style start menu?

Adám

@AdmBorkBork @EriktheOutgolfer I didn't say the start menu. It says something, right?

AdmBorkBork

True enough

Erik the Outgolfer

19:10

@Adám um, you did say the "bottom-left corner"...

8.1's app launcher is full-screen

AdmBorkBork

But I could've snipped just the bottom-left corner

Adám

@EriktheOutgolfer Which may show (part of) a start menu, a start screen, a macOS dock, some Linux desktop…

@AdmBorkBork That's what I did. My start menu is much bigger. Nothing secret really:

Erik the Outgolfer

thing is, I don't think mine is ever constant for a long time

Anush

hi

Adám

Erik the Outgolfer

19:14

that APL2 in there though...

Adám

@EriktheOutgolfer Sometimes I need to see what APL2 does. Or J or K or NARS2000.

Erik the Outgolfer

@Adám just being jealous of your ability to have it there

J. Sallé

@Adám prnt.sc/jqt7yo

Adám

@EriktheOutgolfer Nah, it is nothing special. Not jealous about What's right below RIDE4?

J. Sallé

This is a recently formatted company PC. I've never used anything in that menu, only the stuff that's open on the taskbar.

AdmBorkBork

19:17

Pretty boring

I've never customized it

Adám

@AdmBorkBork Clearly not, which says a whole lot.

AdmBorkBork

Now, the "right-click on the start button" menu, I use that quite a bit

Pavel

@Adám Which Windows is that

Adám

@Pavel 10.

Pavel

Mm

Erik the Outgolfer

19:20

yes, that's clearly Adm's behind

AdmBorkBork

DOSbox, eh?

Pavel

Erik the Outgolfer

QBasic is language of the month ;)

Adám

@Pavel With StartIsBack (I highly recommend) and some tweaking to get proper window chrome.

Pavel

I basically don't use my "start" menu

Erik the Outgolfer

19:22

you're not using Windows, are you?

Pavel

No

Adám

@Pavel KDE?

Pavel

@Adám Yeah. All the customization options in the world, of which I use exactly three.

Mouse cursor, desktop background, and what's pinned to my taskbar

betseg

i installed a menu extension to gnome just for this

Adám

@betseg Wait, that's cheating ;-) The actual bottom left corner is the give away, menu or not.

Pavel

19:33

GNOME3 by default does a more Windows-8 kind of thing

betseg

@Adám better? :P

im using windows 100%

Adám

@betseg :-P

betseg

actual bottom left after presing the "super" button as it's called in linux

Erik the Outgolfer

is that really from a screen...

Pavel

@betseg Is that default GNOME

betseg

19:41

my wallpaper

Pavel

I mean, you don't use a taskbar extension?

betseg

oh i do and it looks like that:

imgur.com/a/dmj0XIo first is when a window is open (soft hide), second is when desktop is open or a window isn't blocking it

like macos

Pavel

KDE was the correct choice

betseg

plasma* smh cant even settle on a name /s

New Main Posts

20:39

0

Q: Reduce using the lowest value

The challenge Create a function which takes an array of numbers and reduce each element with the lowest element in the array. After using the lowest value, It can not be used again. numbers can be positive, negative, decimal and natural numbers Test Cases [6, 4, 7, 8, 9, 2, 1, 4] => [5, 2, ...

code-golf number

Laikoni

Erik the Outgolfer

you have the taskbar to the left?

Laikoni

@Laikoni Not that interesting if your taskbar is on the left :P

Adám

@Laikoni Sure it is. I think it says a lot.

Laikoni

@EriktheOutgolfer Yes, vertical screen space is more valuable than horizontal.

Erik the Outgolfer

20:47

@Laikoni Adám can apparently infer stuff from Adm not having customized his (workplace's) W8.1 app launcher, so yours must be a whole empire of stuff he can infer...

the thing is, how can Adám actually "see" through the bottom-left corner though

betseg

no super button on my phone, is this enough?

Erik the Outgolfer

also, that moment where the sandbox is secretly featured

New Sandboxed Posts

21:11

0

A: Sandbox for Proposed Challenges

Find the Number With the Highest Sum of Neighbors The Challenge Given a grid of numbers (10 <= N <= 99) Return number with the highest sum of the four numbers adjacent to it; that is the numbers above, below, right, and left of the number, but not itself. The number itself does not count, o...

Zacharý

22:02

Ugh, I just realized I have no idea how I'm going to accomplish A[1]←2 in RAD. Does anyone have an idea? I think I have a hack that might work.

ngn

@Zacharý transform the AST into A←2@1⊢A

Zacharý

I think that might work, albeit with hacky hacky things for A[1;2]←1

ngn

22:27

@Zacharý have you done A+←B yet?

Zacharý

I'm planning somewhat ahead. No, I haven't done variables yet (thus, no assignment nor modified assignment).

I'm making sure syntactic elements like [;], and operators work in my current setup.

Segment<type=N code=1;2 value=(Segment<type=N code=1 value=1>, Segment<type=N code=2 value=2>)>

I should probably make a better output scheme for Segment though

ngn

@Zacharý is that str() of your ast?

Zacharý

Both str and repr.

ngn

I think the parser lib was overkill, APL is not that complicated syntactically

Leaky Nun

5 hours ago, by Leaky Nun

CMC: Print the last n digits of the 10-adic number that ends ...5781249 that squares to 1.

Zacharý

22:47

Don't forget, RAD ≠ APL. 0xAB.E^fJ0b1101.1E1101 is a thing

@ngn That has nothing to do with the parser lib, actually. That's the result of hand coded-stuff.

@ngn The parser lib only handles tokenization and evaluation of literals. Everything else is hand-coded. I probably could of done that by hand, but too late now.

ngn

@Zacharý my favourite way to represent an AST is [type,child0,child1,...]

Zacharý

@ngn I did some weird stuff. I based all of my parsing on string rewriting rules, like "NFN -> N"

ngn

@LeakyNun would this work? guess a digit "d" and check if d5781249^2 has more trailing zeroes, then repeat

Leaky Nun

@ngn close

ngn

trailing zeroes, except for the 1 at the end...

Leaky Nun

22:55

still, close

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

Reverse Engineering RNG (Rough Draft) cops-and-robbers Robbers Write a black-box random number generator program which takes a seed as input and generates and prints random numbers forever. (It can be fed into head or terminated early) Your program must generate 32-bit integers (signed or u...

Zacharý

23:18

Indexing is done.

ASCII-only

@Zacharý why would this be so hard

(In Python this is easy. I just override __setitem__ and voila

Zacharý

@ASCII-only The hack will be making a variable class that gets "devariabled" once it needs to be, and overriding __setitem__ will be part of it.

Doing dfns is going to be a major pain

ASCII-only

@Zacharý Charcoal's one of these for ages

@Zacharý (overriding __getitem__ is obviously the other part of it)

Zacharý

1;2 (used for indexing) is represented by (1,2). RAD is basically a massive (but functioning) hack

ASCII-only

@Zacharý how is this a hack

@Zacharý also you're supposed to be using a slice object

Zacharý

23:25

1;2; => (1, (2, None))

@ASCII-only I don't think slice'll work

ASCII-only

@Zacharý :| linked list

@Zacharý what kind of mysterious hack are you doing that will make it not work

Zacharý

@ASCII-only A[1 5 2] gives (A[1])(A[5])(A[2])

RAD is most like APL/J/K.

ngn

@Zacharý what will be the value of B after A←B←1 2 ⋄ A[1]←3?

Zacharý

@ngn 1 2

RAD successfully parsed and evaluated (still sucky display mechanism) (ι5 5)[1 3;3 1]

@ngn What does K do?

ngn

@Zacharý afaik, all of apl/j/k do the same thing - B is 1 2

ASCII-only

23:32

@Zacharý then pass a list in that case...

Zacharý

@ASCII-only ._. Python doesn't like that

ASCII-only

@Zacharý and why not

@Zacharý myInstance[[1, 2, 3]]

Zacharý

I misunderstood

ngn

The arrays in APL and k (and probably J) have refcounting, so they know when they can do the operation in-place and when they should copy

Neil

my start menu doesn't show my most used apps, it shows two apps that I happened to need recently and nothing else

Zacharý

23:34

A[1 2 3] is done using a list, but A[1;2;3] is done using tuples and recursive calls to Index

ASCII-only

@Neil I think you broke Windows

@Zacharý :|||||||||||| A[1;2;3] should definitely be a slice object... it'll make your life infinitely easier

Zacharý

@ASCII-only ... that evaluates as A[1][2][3]. RAD doesn't have any rank concept.

ASCII-only

@Zacharý ah.

@Adám :O what start menu is this

nvm, found it

Zacharý

23:49

Once one bug is done, another pops up. Seems to be pretty common

ASCII-only

@Zacharý :|

Zacharý

:|

ngn

@Zacharý you need tests :)

Zacharý

@ngn I am testing along the way.

¨ is giving me problems.

ngn

@Zacharý manually?

Zacharý

23:54

@ngn Yeah ...

ngn

@Zacharý no, you need automated tests that can be run with a single keystroke

Zacharý

It's been working for me so far.

ngn

@Zacharý tests are important because after complexity inevitably accumulates, they give you confidence to refactor

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