@FawnLocke i think both monadic and dyadic execute are talked about on the same page: help.dyalog.com/18.0/#Language/Primitive%20Functions/…

Ah, thanks for pointing that out.

Today's AoC is a fun one. pastebin.com/2zScY5iK I wonder how APLers would solve this differently.

@voidhawk If it depends on AVX, it is impossible to run under Rosetta.

It would be trivial to produce a native M1 version that all subroutines are in C. I guess it's only about how to utilize the vector instructions from Apple Silicon.

Rosetta cannot emulate AVX. It's the x86_64 binary of Dyalog APL automatically disables vector instruction support.

@LdBeth i used windows as well, but didn't make it in APL

should be portable

wohoo, new arraycast is out :)

@LdBeth I was playing with 10|10⌊ but decided to track with 0@ instead for to be honest no real reason: github.com/rikedyp/Advent-of-Code/blob/main/Y2021/Day11_2.aplf

github.com/rak1507/Advent-Of-Code-APL/blob/main/2021/… mine

@RikedyP lol very similar to mine

→ 1 mistake moved to ­Trash

@FawnLocke Yeah, people are accustomed to writing x/⍳⍴x which is optimised.

@hyper-neutrino Can you give chat.stackexchange.com/users/530767/user176905 access?

@Adám Done, sorry for the delay. I wasn't paying attention.

No worries. Thank you.

@user176905 Hi John Jacob, and welcome to the APL Orchard. You should now have write access.

Since you're new to Stack Exchange chat, consider having a look at apl.wiki/APL_Orchard#Features

@here: how do I create a 6 dimensional array where the cell value is a function of the 6 index values?

@RudiAngela sounds like a job for ⍳

Yeah, F¨⍳shape

Yep, I suspect so

So the cell value function is depends linearly on its indices. E.g. 50xi1 + 20xi2 +...

@Adám Let me try that

Ah, if there's a nice mathematical relationship, you might be able to get much better performance with F shape⊤⍳×/shape