The Nineteenth Byte

totallyhuman

20:10

I wish I could downstar messages...

trichoplax

Would we have a left starboard for the disliked messages, or just prevent them showing on the current starboard until they have a positive score?

totallyhuman

that'd be too many sidebars

but perhaps they can act like downvoted answers on SE

trichoplax

→ 6 messages moved to Trash

totallyhuman

is there any way to truly delete messages?

Poke

make a userscript to add a downstar board

x.x

trichoplax

20:14

@totallyhuman Only on special occasions

totallyhuman

ah

trichoplax

Yes but only if absolutely necessary

totallyhuman

wouldn't you find the downstar board to be one too many starboards?

trichoplax

We'd have to call it the port, which would get confusing

totallyhuman

the starboard already takes up a significant amount of space

New Sandboxed Posts

20:20

2

A: Sandbox for Proposed Challenges

I'm thinking of posting the below two challenges, but fear that they are too close to Convert to and from the factorial number system. However, mine do not involve detection of conversion direction, but do involve larger numbers by using letters. Please comment or vote to indicate if I should pos...

Poke

@totallyhuman at which resolution are you viewing it

totallyhuman

1366x768

betseg

its 28%

why such specific number

Poke

chat is 70% and they probably wanted some padding or something

Christopher

In Chat poll: How much weight do you think that basket would hold before breaking?

@ATaco downstar userscript pls

@Poke Pinged ataco

betseg

20:37

@Christopher 3 gr

Christopher

@betseg grams?

Pls be serious

I want to actually know

betseg

only one way to actually learn ;)

Christopher

@betseg I already know the answer I want to know what others think

betseg

oh

i'd say 15 kg

Christopher

That is a metal basket

Meant for heavy duty work

betseg

20:39

25?

Christopher

Actually rly close

48 lbs

But it should be ~200lbs

Well 100-200

betseg

how does it feel to be in one of the 3 countries that doesnt use the metric system

trichoplax

@betseg Sounds perfect to me

Christopher

@betseg Honestly? Pretty great

totallyhuman

ew

betseg

20:42

Christopher

Metric is hard

trichoplax

@betseg That's not what I was replying to and you know it :P

betseg

thats why i grabbed and posted it

trichoplax

I'm not sure I've ever been to a country that doesn't use the metric system

Christopher

@trichoplax That makes me sad

trichoplax

20:44

I have no idea why

betseg

1 km is 1000 m. how many ft is a mi?

Christopher

5280

Poke

5280

aw i lose

Christopher

Yes! I am king Ninja

mbomb007

I've been really busy lately and haven't been able to golf. :/

trichoplax

20:45

I was brought up counting in base 10 so it seems natural to me.

Christopher

You must star everything I say

(don't do that)

mbomb007

I'm just popping in to say "hi"

@trichoplax so... which base? :P

trichoplax

:P

Christopher

Base two I think

Mayube

@Christopher Do you not know factors of 10?

betseg

20:46

1 l is 1000 ml. how many tsp is a gal

trichoplax

10 has different factors in different bases

Poke

12 has more factors than 10 which makes it easier to split up

theoretically why it was chosen

betseg

we have 10 fingers

Christopher

@Mayube 1 2 3 5 7 11 13 17 19

betseg

(easily accesable ones)

Mayube

20:47

@Christopher 1 isn't prime

Christopher

@betseg wait you have unaccesable fingers?

@Mayube Yeah whatever that is what you think

totallyhuman

I finally finished integer base conversion

and now ,,, is 1 byte bigger of jelly

betseg

@Christopher i cant easily access my toes, i wear socks and shoes

Christopher

@betseg Toes are not fingers

totallyhuman

1

A: Is it a Harshad Number?

,,,, 5 bytes :↔b%¬ Gah, it took me way too long to implement base conversion. Explanation Take input 10, 27 for example. :↔b%¬ input reversed by command line args [10, 27] : duplicate [10, 27, 27] ↔ reverse the stack ...

Christopher

20:48

They are appendages

trichoplax

@Mayube You didn't specify prime factors :P

Mayube

@trichoplax he posted the first 8 primes, and 1

trichoplax

@Mayube But was claiming they are the factors of 10...

ATaco

I just repcapped on WorldBuilding hlep.

trichoplax

I agree highly composite numbers make excellent bases. This is why I like base 2

Mayube

20:50

@trichoplax which to my knowledge they aren't in any base

trichoplax

@Mayube I agree :)

Mayube

because regardless of base, 19 > 10

Christopher

CMC given a list of ints (no internet) give the next number in the sequence

There may be more than one answer

Mayube

Braingolf, 1 byte: 1

Christopher

You may assume > 5 ints

trichoplax

20:51

> There may be infinitely many valid answers

Christopher

@Mayube Wait wat

gtg dota match

Mayube

@Christopher As tricho rightly pointed out, no matter what ints you passed me, theoretically there exists some generator with which the next number in the sequence is 1, therefore 1 is always a correct answer

totallyhuman

o.o you can call trichoplax tricho?

tricho the turtle is an amazing name

trichoplax

I've been called both "trich" and "tricho" in here occasionally

And "Terry" on another site, for reasons which elude me

Phoenix

@Christopher I think this works best as a popcon

totallyhuman

20:56

ok so

in ,,,, b converts integers to a different base

Mayube

@Phoenix As we discussed earlier regarding popcons, what would you fill this blank with? "Upvote the answer that is the most ___"?

totallyhuman

but should it give the array of digits or should it give the sum

because jelly just returns the list

Phoenix

@Mayube Upvote the answer which is most able to predict what the "intended" sequence was.

totallyhuman

but ,,, returns the sum of the list

Phoenix

Like, if the input is 1,2,3,4,5 then it should upvote 6

totallyhuman

20:58

test battery?

Phoenix

BTW, I am 99% sure I remember reading about a mathematica builtin that attempts to guess sequence continuations.

totallyhuman

of course

Phoenix

@totallyhuman I don't think it works well as a test battery because for many initial values it's just as likely to be one sequence as another.

New Main Posts

0

Q: Multiply a string and a number!

There was a challenge up a while ago about multiplying strings. It showed us how we can multiply not only numbers, but also strings. However, we still can't multiply a number and a string properly. There has been one attempt, to do so but this is obviously wrong. We need to fix that! Your Ta...

Phoenix

Is 1 1 2 3 the fibonacci sequence or is it 1 1 2 3 4 5 6 7 ...

@totallyhuman SequencePredict documentation

Peter Taylor

21:05

12

Q: Predict next number from a series

Which methods I can use to predict next number from a series of numbers ? I know the min & max possible number in advance.

sequences-and-series pattern-recognition

github.com/pjt33/oeis-superseeker/blob/master/superhelp.txt

Hah. Another project from my list of barely started projects.

Phoenix

@PeterTaylor Does it support Mathematica's SequencePredict?

Peter Taylor

21:21

Look at the "Introduced in" date on the doc page you linked, and at the last commit date on the project I linked (which actually was last modified about 5 years before that...)

totallyhuman

TFW your interpreter shorts on non numerical command line arguments

DJMcMayhem

@NewMainPosts At first I was super excited to do this in V and brain-flak, but then I wrote it in V and it's the worst answer I've ever written and I started doing it in brain-flak and I realized it's nearly impossible. Ugh

Downgoat

21:40

~~it begins >:)~~

2

Downgoat

22:24

@Christopher silence does not need to always be filled

8

Peter Taylor

I'm surprised that my game show question has gone 24 hours and only has answers in Python and Haskell.

Where are the Jellyites?

Zacharý

Is this allοwed? (οmicrοn instead οf o) since if not pointed out, no one will notice?

New Main Posts

0

Q: Repeated Consecutive Digital Product Sum Convergence

Given a positive integer n (Example: n=1234444999) Separate into consecutive digit runs: [1, 2, 3, 4444, 999] Take the digital product of each run. [1, 2, 3, 4*4*4*4, 9*9*9] = [1, 2, 3, 256, 729] Sum it... 991 Repeat until this converges to a single number: 1234444999 991 82 10 1 Re...

code-golf sequence convergence

Downgoat

Topic Change: have we had a grammar parsing challenge before?

I have one in sandbox I want to post but I'm 70% sure I've seen a related challenge

Zacharý

@Downgoat RESPONSE: Perl6 win ...

Peter Taylor

22:29

3

Q: Shortest parser for a left-recursive grammar

Write the shortest parser for the grammar: M -> M + n | n Output must be some representation of a structured value representing the concrete syntax tree produced by the input n+n+n. The code to produce the textual output from the structured value is not necessary. The code to read/validate in...

code-golf parsing

HyperNeutrino

lol my computer is unable to shut down without holding down the power button

Peter Taylor

And then see its related questions

Downgoat

@Zacharý It could probably sanely write a find+replace to a PCRE CFG.

Zacharý

I was speaking of grammar if the grammar's complex enough

Downgoat

@PeterTaylor wow OK thanks

trichoplax

22:32

→ 54 messages moved to Trash

HyperNeutrino

I changed my Python version to 3 and then the print statement in the shutdown script raised a syntax error

Downgoat

CMC: Write a program to convert a CFG (BNF or whatever you like) to a PCRE regex that does same parsing

Peter Taylor

Wow, that question has been in the sandbox for a long time

Downgoat

@HyperNeutrino your computer uses a python script for turning off? O_o

HyperNeutrino

apparently

Zacharý

22:33

'HA'*20

Peter Taylor

And I've been waiting for an answer to the question in my last comment for almost a year :P

CensoredUsername

@Downgoat parsing BNF grammars with regex is only allowed in languages where the syntax is zalgo

Zacharý

I have to ask, would one person saying 'kick me' once result in the person becoming kicked? (I wouldn't do it ... too direct)

trichoplax

@Zacharý That question strikes me as noise. I don't see why you have to ask.

Downgoat

@CensoredUsername i.e. PCRE (has unicode support)

to show pcre can do all CFG: blog.vihan.org/wrong-about-regex

Christopher

22:41

chat.stackexchange.com/rooms/62037/start-b chat.stackexchange.com/rooms/62036/start-a

I need some help. Can someone join both of those rooms?

Bug test

Mayube

@Downgoat many linux distros use python for a lot of commands, it's a very bad idea to change the default python version from 2.x to 3.x on those distros

Zacharý

I don't see why they can't just add the parens or something, not that big of a deal to add.

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

Scale my ASCII-Art Given an input string s and a number n, scale the ASCII art s by a quantity of n. Examples Input: ## $$ 2 Output: #### #### $$$$ $$$$ Input: # # # # # # # # # # 2 Output: ## ## ## ## ## ## ## ## ...

Zacharý

22:57

Hey, what's the Jelly atom to convert a string into a number?

HyperNeutrino

@Zacharý Ḍ

Zacharý

Anyone know why this isn't working?]

tio.run/##AR0A4v9qZWxsef//xZLhuZjFkmfhuIzigqz///8xMjM0NA

HyperNeutrino

i'm too lazy to open the wiki

what is ŒṘ

and what is Œg

I should memorize these :P

Zacharý

String representation, group runs of equal elements.

HyperNeutrino

ok

ATaco

23:02

DYK: Fat is really efficient as far as batteries go? More so than all commercial batteries.

totallyhuman

NIDK

CensoredUsername

@Downgoat I've actually been working on a language where most of the syntax is just combining diacretic marks. Will still take some time to develop fully, but eventually we'll be able to program in ry'leh

HyperNeutrino

oh Ḍ doesn't actually do what I thought it did

it has to be a list of digits rip

ATaco

The Major downside to making batteries out of lard is it's rather difficult to turn it to Eletrical Energy quickly.

New Meta Posts

0

Q: We're Lacking Trivial Questions

So, I've been personally noticing that the difficulty of our average challenge has seemed to progress higher and higher as I've been a member. No longer do we see alphabet challenges, nor as many OEIS challenges. I have a question for the community in regards to this progression; is this a good t...

discussion

Zacharý

23:07

NVM, I got it.
I hate how Jelly displays lists ... so so so much.

0

A: Repeated Consecutive Digital Product Sum Convergence

Jelly, 9 bytes DŒgP€SµÐL Try it online

HyperNeutrino

nice

Zacharý

I haven't golfed in Jelly in forever.

HyperNeutrino

Same

I haven't used it in a while

Zacharý

I have two Jelly solutions waiting in the wind for a challenge to arise.

HyperNeutrino

are you a registered HyperTraining student?

Zacharý

23:16

Nope. They probably wouldn't want me due to my "punny business" (please don't kick).

HyperNeutrino

><

Zacharý

What goes on in there, just a bunch of CMC's to solve in Jelly?

HyperNeutrino

not exactly that

totallyhuman

No

HyperNeutrino

we look at challenges with difficulty based on our experience level

totallyhuman

23:17

Sorta ninja'd

HyperNeutrino

and then the teachers help us solve them (if we need help :P)

Zacharý

Okay, then I'm fine without it (at least for now).

HyperNeutrino

for example in the beginning you mostly just learn the foundations like how atoms chain together and how quicks kinda work (you look more at that in lvls 1-2 I think)

obviously you use syntax stuff throughout but that's easier to understand

then lvl 3 is like more complex stuff, using more quicks

Zacharý

I just guess how Jelly works and then go from there.

HyperNeutrino

and lvl 4 is mostly doing everything with a bit (or a lot if you're me :P) of guidance from EtO and LN

I don't know what lvl 5 is

nobody is lvl 5

Zacharý

23:19

If nobody is lvl 5, how does one know it exists?

(maybe they become one with dennis ... lol)

HyperNeutrino

Because it's in the JHTSC

@Zacharý no he's level ∞

totallyhuman

No actually he's level 1

HyperNeutrino

?

Zacharý

O_o

totallyhuman

> Dennis has to be a student too, because, well, if he just knows Jelly the best he isn't afraid of proving it, is he?

Zacharý

23:22

In that case it should be assumed he's lvl 5 if he's also a student.

totallyhuman

Nope

Level 1, no discrimination ;)

HyperNeutrino

he has never been in the JHT room before

totallyhuman

> that doesn't mean he'll not quickly escalate to level 5 where he will be able to be promoted to a teacher at his own discretion :P

Zacharý

Can anything be golfed off of this solution? codegolf.stackexchange.com/questions/101550/…

It was one of my first answers in Jelly (heck, it might have even been the first) and the only challenge I've won.

ATaco

For reasons I need a list of ~10,000 sentences and the emotion each one most strongly potrays.

Zacharý

23:38

{⍵,'ಠ_ಠ'}¨(10K sentences)

Business Cat

For a natural language processor? :P

Zacharý

(AKA, every sentence with the look of disapproval)

ATaco

@BusinessCat Yep.

Zacharý

A search through SE chats should be sufficient enough. (I don't have a clue how to make one)

Business Cat

Well, I can't say I have a list of 10,000 sentences and the emotion each one most strongly portrays.

ATaco

23:41

curses

trichoplax

→ 5 messages moved to Trash

totallyhuman

ncurses

Zacharý

^ ... is horrible to have D interface to ...

Destructible Lemon

I need blockdrawing characters

Zacharý

⎕AV my friend, ⎕AV.

Destructible Lemon

23:48

?

totallyhuman

apl

Zacharý

⎕AV for some reason has box-drawing chars.
That's stupid.

ATaco

I realized a bug in my session code for a-ta.co that kept sessions that weren't logged in active forever rather than for an hour like they were supposed to.

I expected +undefined to cast to 0, but apparently it just casts to NaN

totallyhuman

hah

Zacharý

@ATaco Th-th-that's JS folks!

totallyhuman

23:51

you've been hit by, you've been struck by, javascript's weird typing

Zacharý

[]+[]

ATaco

just because it's falsey, doesn't mean it will cast to a falsey value

Business Cat

Truthy values can cast to falsy ones too

totallyhuman

taco, are you okay? so, taco, are you okay

Zacharý

Just give up on understanding in JS typing ... you'll get lost fast.

Business Cat

23:53

Ahhh, the wonders of JS

totallyhuman

new request: somebody translate smooth criminal for javascript typing

ATaco

>> +false
<< 0
>> +null
<< 0
>> +undefined
<< NaN

JS why

Business Cat

At least it isn't PHP

Zacharý

Or perl.

PHP ternaries though, WTF?

Business Cat

I love how in PHP they made . be the concatenation operator... but then "string".5 is a syntax error because it parses .5 as a number

Destructible Lemon

23:57

I'm hardcoding the box drawing characters...

Business Cat

Truly a wonderful design

Destructible Lemon

into a string

Zacharý

PHP and JavaScript are alike in syntax
and the amount of f***ed up they are.

Destructible Lemon

I think you mean in semantics

ATaco

Lua has similar problems.

Destructible Lemon

23:58

there's nothing wrong with the syntax [] + []

or anything else

its the result thats messed up

Zacharý

Well ... PHP does have one f***ed up syntax bit ...
those damn ternaries.

ATaco

print(13.." and a half") errors, even though it's unambiguous that you don't want a broken decimal point after your number.

Business Cat

What's wrong with the ternaries?

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