#jlang — Public Fediverse posts

fast Burrows-Wheeler transform and inverese in #jlang

https://github.com/vmchale/burrows-wheeler/blob/504845dfdb9edd6fe782566de71c0caa991e579d/bw.ijs

This is how to call #lapack in #jlang

A mathematics problem

How many 3-digit numbers are there where the sum of the cube of each digit of
the number is equal to the number itself?

Thinking about this (from a book of recreational maths problems) gave
me the excuse to brush up on some #jlang programming.

NB. Determine all the 3-digit numbers whose digits' cubes sum to the number

a =: 100+ i. 900 NB. All 3-digit numbers
fmt2=: 8!:2 NB. External function that turns numbers to strings
d =: fmt2 each a NB. Turn a to a collection of boxed strings
e =: ;"1 <each;d NB. Separate out each integer of each number
f =: (;"1) ". each e NB. Get rid of the boxes and convert back to numbers
g =: (+/"1) 3(^"0)~ f NB. Sum the cubes of the digits
(I. g=a){a NB. List numbers for which the sum of the cubes of the
NB. digits equals the number

I know that someone who is better at J than me could do this more
elegantly. If you are one of those people, I'd love to see your
answer.

If you are just curious, the answers are
153 370 371 407

Finally I'm able to save myself from unit conversion hell #jlang

Make an #IXML grammar for #jlang so I can make a #literateprogramming tool.
https://gist.github.com/LdBeth/8277950958b964d0778d70ffd3d998de

Tried to implement a matlab function in #jlang and it is a success.

lol, solved #vividstasis puzzle using #Jlang

#rythmgame

lol, solved #vividstasis puzzle using #Jlang

#rythmgame

Time based One Time Password in #Jlang

https://github.com/LdBeth/swift-totp/blob/main/hmac.ijs

#arrayprogramming #apljk

Time based One Time Password in #Jlang

https://github.com/LdBeth/swift-totp/blob/main/hmac.ijs

#arrayprogramming #apljk

I just noticed the "Best Seller" sticker on my second hand copy of Alan Holt's Network Performance Analysis Using the J programming language. 😂 I love it but somehow I doubt the sticker #apljk #jlang

Why J? (The programming language) https://code.jsoftware.com/wiki/Essays/WhyJ
#jlang #apljk

I discovered the ArrayCast #podcast this week and have enjoyed it tremendously.

https://www.arraycast.com/

Fun content for #programming #language nerds; positive and constructive perspectives; and soothingly orderly conversations where folks don’t interrupt each other 😌

#apl #jlang #klang #forth #ArrayProgramming

@Gboeer @okflo #jlang is so good when you get used to it though :)

I just completed "Rucksack Reorganization" - Day 3 - Advent of Code 2022 #AdventOfCode https://adventofcode.com/2022/day/3

https://github.com/AshyIsMe/adventofcode/blob/main/adventofcode2022.ijs
#jlang #apljk

I had a go at explaining forks, hooks and cap in J:
https://gist.github.com/AshyIsMe/12449fb69ad23b5d74d8989b293fe09d
#jlang #apljk

@isaac_flath nice!
I'm doing it in J here:
https://github.com/AshyIsMe/adventofcode/blob/main/adventofcode2022.ijs

#jlang #apljk #adventofcode

#adventofcode is on! Of course day 1 is a single line of J. #jlang #apljk

Well, I think it's time to re-watch Tracy Harms' J Programming Language talk again:
https://youtu.be/RWYkx6-L04Q
#jlang #apljk #array

This is a great read about j https://zserge.com/posts/j/
#jlang #apljk

@jdarnold Same except I was using #jlang. I've been playing code.golf with J since then so hopefully should do better at the advent this year

A nice blog entry illustrating the power of the APL programming language by
unpacking a 1-line program of Conway's Game of Life

https://wordsandbuttons.online/apl_deserves_its_renaissance_too.html

But while they say in that article that APL deserves a renaissance as Lisp had
with clojure, it already has had its renaissance in the form of the language J,
which was also designed by Kenneth Iverson (and Roger Hui at the time and others
since), has all the expressiveness of APL but uses the ASCII character set.
It's also open-source. You can download it and access more information at
https://www.jsoftware.com if you are interested. #jlang

#introduction time!

I enjoy #programming #languages esp. #clojure & #FunctionalProgramming in #lisp. I follow #zig and cyclically use #FactorLang #JLang #dart #ruby #TLAPlus. Also #LaTeX and am a wannabe #typography nerd.

I love #linguistics speak #russian & have studied #french #latin #greek #arabic and many more.

I spend hours a week singing in #byzantine #chant and making #piano & #woodwind #music

I'm a #husband #father & #orthodox #christian #priest but here focus on the above topics.

@viznut Take a look at #apl or #jlang. For the latter, most commands are 1-2 ascii characters long and are more symbolic than words, although the description of how they function is quite grammatical (nouns, verbs, adverbs etc).

@codesections Not #APL but I learn & write #J ( #Jlang)
It's tacit way of writing code + the plethora of built-in math, array and various utilities make math very fun-.

Compared to APL it restricts itself to easily accesible ASCII so it's very easy to write code (no special character issue).

At the very least it should be a fun learning experience. If you are still wondering get started now!
Good Luck!