The APL Orchard

1:50 AM

@Lapwing482 f¨/

2:11 AM

in fact u need to have ⊃X[1] f¨ X[2] to get an array as result instead of an array enclosed

⎕←{⍵[1]+¨⍵[2]}(1 2 3 4)(5 6 7 8)

TryAPL

@LdBeth
┌─────────┐
│6 8 10 12│
└─────────┘

⎕←{⊃⍵[1]+¨⍵[2]}(1 2 3 4)(5 6 7 8)

TryAPL

@LdBeth 6 8 10 12

or you can changed the input to avoid dealing with nested array. ⎕←+⌿↑(1 2 3 4)(5 6 7 8)

TryAPL

@LdBeth 6 8 10 12

Pythonicator

2:30 AM

I do like the in built Dyalog; only problem is I need to go find what some of the symbols mean so I can put a mapping in for them so my screenreader will announce them.

The Emacs' screenreading package did read them fine though.

3 hours later…

5:24 AM

lol, today's aoc is "interpreter routine" (again), I wonder if anyone would consider their APL solution elegant enough.

2 hours later…

7:41 AM

Elegant? Nope :)

github.com/xpqz/AoC22/blob/main/day5.apl

Annoyingly iterative, but it must be, right?

Aiden Chow

7:59 AM

dang yall doing aoc on apl? how yall ranking?

RikedyP

8:35 AM

part 2 was just removing a reverse ⌽ for me

@xpqz yeah tower of hanoi, innit

Wonder what this says... jsoftware.com/papers/50/50_38.htm

github.com/rikedyp/Advent-of-Code/blob/main/Y2022/Day5.aplf

Jay Foad did a reduction, although possibly fighting the RTL github.com/jayfoad/aoc2022apl/blob/main/p5.dyalog

8:55 AM

@RikedyP He's a master of this craft.

9:44 AM

@AidenChow There is a private leaderboard for APLers, run by @rak1507

@xpqz So it cannot be listed on the wiki?

@Adám I think that's up to @rak1507 to decide.

I think the access code has been posted here in the past.

1 hour later…

11:17 AM

Golfed day5 a bit.

2 hours later…

1:12 PM

@xpqz haha I used the same [;¯2+4×⍳9]

It is just I used tradfns because I forget how the lexical variable thing works.

1:25 PM

@LdBeth Yep, nicely cryptic, and entirely non-general, like a proper AoC solution should be.

4 hours later…

rak1507

4:59 PM

@xpqz oh, sure

656501-67f7cded

Aiden Chow

@rak1507 ah thanks, im gonna join it real quick

ok cool im in

5:35 PM

Day 5 is tough. Not any idea yet how to approach this. Will give it a go tonight

6:11 PM

@Richard ⎕VFI still works!

It’s my favourite quad

you might also want⍉

I see that ⎕VFI is a safe replace of more tradition ⍎

@AidenChow You sailed right to the top of the standings!

oops, sorry

@rak1507 Do you want to add a link(? I don't know how AoC works) to apl.wiki/aoc?

6:41 PM

@LdBeth :)

my favorite quad is ⎕AV, for no reason (⎕UCS is also great though)

⎕DT

I hoped ⎕FIX would my favorite, to fix all my problems... Maybe in 19.0

Huh, how so? Wait, is this a joke?

I'm still waiting for ⎕ESP so I don't need to write actual code any more.

Oh and extending ⎕DL to negative numbers.

@Adám Yes sorry, bad ⎕joke.

6:54 PM

      ⎕JOKE
┌──────────────────────────┬─────────────────────────────────┐
│Why was the math book sad?│Because it had too many problems.│
└──────────────────────────┴─────────────────────────────────┘

@Adám that was my suggestion, yes :)

thanks for picking it up

19.0 too?

18.4.1

Is probably in the conference edition

Maybe we should add ⎕GPT?

Would be a very nice 1st April joke

GPT = Good Pasta Tonight?

7:00 PM

Haven't you heard of ChatGPT?

No. Just searched for it. Is like Eliza for the C64?

Well, it is very knowledgeable; able to give convincing nonsense answers to most any prompt. E.g. it came up with the above joke.

If you give me a prompt (in plain human English), I'll run it for you and give you back the result. And yes, it "knows" APL too. At least enough to write some very convincing-looking nonsense APL.

Who is going to be world champion footbal(soccer?)

btw. ⎕VFI is really awesome, feels like cheeting a little bit

Its answer was:
It is impossible for me to predict who will be the world champion of soccer as I am a large language model trained by OpenAI and do not have access to current information about sports events. Additionally, the FIFA World Cup, which is the most prestigious international soccer tournament, only takes place every four years, so it is not currently possible for any team to be crowned world champion. It is up to the individual teams and their players to perform at their best and earn the title of world champion through their on-field achievements.

(It has limited knowledge of world and events after 2021.)

@Richard Interesting. What were you using it for?

wow, could be our prime minister

@Adám parsing the input of day 5 AoC

1 hour later…

11Kilobytes

8:30 PM

How do you compare the runtime of complex expressions? I've defined the functions fn1 and fn2 and I want to apply them to a large array to compare them for performance. ]Runtime doesn't seem to work in the sense that ]Runtime (fn1 ?10000⍴ 5) (fn2 ?10000⍴5) say returns an error about unbalanced parens.

Put each expression in quotes ' or "

11Kilobytes

:d, thanks @Adám. I was just about to something like that.

9:12 PM

@Adám Let's ask GPT pretends to be the Dyalog 30.0 repl and program in it

oh ok no feature predicting ability, but might still able to run a meta circular simulator

looks way better than copilot from github

Can you set ⎕IO though?

Jeremy gee

there's a paper that says you will get better results from it. If you prefix your request with "let's try this step by step"

No more GPT talk. sorry. will try to stay on topic.

So, utter nonsense, but the correct result!

Jeremy gee

so much nonsense :)

9:20 PM

that did surprised me

soon we can have programming course automatically generated by machine

9:44 PM

I doubt it would make a common mistake on -/⍳6

Aiden Chow

@xpqz lol not even entirely sure if i should be on that leaderboard given that im not even using apl for aoc, im using python

im just not good enough at apl to solve the aoc problems

@LdBeth After much teaching, it finally got it:

cool, I knew it!

How stupid can you be?

10:00 PM

can it understand associveness/precedence?

*association

@LdBeth Apparently:

hahahaha

it is essentially a rewrite engine under the hood, controls by a awkward natural language interface

user

It's like talking to a child

One that's read the entirety of the internet, but still a child

10:17 PM

Children don't usually apologise that much.

user

It seems to get confused with division, even though it could divide individual numbers (I told it # was division in APL because I didn't want to copy paste the glyph)

Ugh, it finally managed to evaluate 1#2#3#4#5#6#7 after a lot of coaxing but it still can't get #/i7

Anyway, this is probably getting off topic, o/

rak1507

11:13 PM

@Adám sure, could do