@Razetime I agree, though maybe "Humour" in general, which includes jokes, puns, anecdotes, memes etc. Feel free to create one. All the APL/apple puns should at least be listed, and dyalog.com/blog/2015/12/apl-puns should be among the external links.
They won't actually be learning APL, just seeing that there's a fairly simple mapping between the numpy code and the APL. And there is a much better 'signal to noise' ratio in the APL.
@user There is regular office automation via COM/OLE which require MS Windows, and there are a couple of new tools that are cross-platform but still relatively untested, such as github.com/the-carlisle-group/APL2XL
If you are under Windows, take a look at the LoadXL and SaveXL functions in the loaddata workspace (which also contains functions for XML, CSV and SQL).
On Windows, going to Options → Configure → Windows gives me the possibility to alter some widths and heights.
I thought the width of the "Edit Windows" referred to the window that pops open on the right of the interpreter when I type )ed name, but turns out I was wrong.
@RGS No, we don't officially support sharing schemes. Maybe I should create a tool to make sharing schemes more seamless. ]copyreg already allows you to export any particular thing you want, but it is a bit complex for sucha task, and doesn't handle import.
@RGS The "Edit Windows" only affects windows which aren't "docked" into the session. The "docked" width is saved as part of the session's GUI configuration. This can be saved with "Session->Save" from the session menu. This will also save (amongst other things) the position and size of the session window.
@KamilaSzewczyk In Dyalog APL, the HttpCommand tool can be used for this. Do you have a client-side certificate or just want to access a server which uses HTTPS.
There are a couple ways. One is called HttpCommand that you can access using `]load HttpCommand z←HttpCommand.Get someURL β z.Data will contain the payload of the response HttpCommand.Documentation β will display the documentation`
@KamilaSzewczyk The second is to just call curl (assuming it's available) via βSH
@KamilaSzewczyk If you're using HTTPS (but using an anonymous certificate), then HttpCommand will handle it for you (just make sure your URL begins with https://). If you need to pass a specific certificate, that can be done as well. Let me know and I can walk you through it if it's not clear in the documentation.
@KamilaSzewczyk The additional context helps. We use HttpCommand all the time in client applications. And in that case you'll want to use other elements in the result of HttpCommand.
Ah, OK: completely agree. Shelling out is not nice if you can avoid it, so we would definitely recommend using HttpCommand. But some people are already experienced with curl, so it is worth mentioning.
@KamilaSzewczyk I would only shell out using curl for very simple things. HttpCommand gives you the response in a form that's much easier to manipulate in APL.
to me
main = do
line <- getLine
putStrLn $ "you entered " ++ line
is either the same or better than
main = getLine >>= (\line -> putStrLn $ "you entered " ++ line)
@Wezl I don't know, do notation for Maybes etc. seems pretty commonplace and not fitting into the same rhetoric as "functional core, imperative shell" - "minimize effectful code". But perhaps I'm conflating imperative and effectful here.
@RGS what sortve performance are you seeing outve ANNAPL?
I wrote a neural net proof-of-concept in gnu apl a while back and the reason i dropped it was because of math performance and the numbers seemed... off.
<moon-child> probably. I think some people were doing nn in q and had some success. Dyalog probably not as fast, but close enough where it counts. (Though q has single-precision floats and dyalog doesn't, which works against you)
@RGS well, currently ive been working on the erlang-bqn vm, (mostly figuring out perf issues so i can get a working prototype). and i want to use that to do some "control plane" application development/experiments. other ideas would be writing a low level bqn vm that could run compute or memory intensive workloads that could communicate w/ erlang-bqn as an erlang dist most likely.
I was thinking about what conor hoekstra mentioned in the BAA meeting and realised that monadic , is the same as β,/β£β‘ I think, so that is a connection between the monadic and dyadic purposes of ,
why there is a windows/microsoft sign on the dyalog keyboard? it could be a dyalog ~~cube~~ "white D and two brown irregular shapes on a three-tone orange hexagonal background."β
@rak1507 while pointers (or equivalent) are necessary to pass-by-reference, pointers being involved doesn't immediately imply that the object's pass-by-reference
<moon-child> @Marshall raku effectively lets you do pass-by-reference or pass-by-value on a parameter-to-parameter basis. (Of course, raku also has every other feature, so perhaps that's unsurprising)
The term "pass by reference" has somehow become entrenched; people assume it must mean something useful so they use it to mean "pass a reference". This tends to prevent people from actually figuring out what's going on.
@rak1507 No, if you pass a pointer by reference, you could change the reference, which changes the pointer that the caller is using, or change the pointer's referent, which changes the underlying value without changing the caller's pointer. So there are two levels of indirection.
but if the only distinction between passing by value and by reference is if you mutate/access what the passed in argument refers to, isn't passing a namespace passing it by reference rather than by a pointer value like dzaima said?
@Marshall strictly speaking you're right, pass-by-reference β reference semantics, but wasn't there some trick with which a namespace (or a property thereof?) can turn into an arbitrary object later?
@rak1507 Pass by reference is a mechanism for argument passing. With pass by value, the arguments are copied from the caller's variable slots (or the stack) to the callee's argument variable slots. With pass by reference, the caller gets access to the callee's variable slots, and doesn't have its own slots for those variables. Pass by reference allows mutability, but many things that allow mutability aren't pass by reference.
@ngn That only changes what is displayed (and returned by β). It doesn't actually change anything inherent. You can change a namespace into a "GUI" object using βWC, thoughβ¦
@ngn Yeah, I guess that is kind of a form of pass-by-reference. I was about to ask Marshall how APL could have abandoned it before it '70s, but maybe indeed APL didn't really.
Did original APL\360 allow localising names in the header?
