Re: [Jprogramming] Definition of whitespace in x".y (Numbers)

2022-09-29 Thread Raul Miller
LF ends a sentence and is not recognized as a valid part of a sentence. Conceptually, this might be thought of as linguistic "space" set aside for potential future enhancement (though that sort of thing needs *very* careful consideration). -- Raul On Fri, Sep 30, 2022 at 1:54 AM Razetime wrote

[Jprogramming] Definition of whitespace in x".y (Numbers)

2022-09-29 Thread Razetime
NuVoc indicates that numbers are separated by whitespace, but it seems that ". does not recognize them as such. why? _".'1',LF,'2' _ _".'1',LF,'2' _ -- For information about J forums see http://www.jsoftware.com/forums.htm

Re: [Jprogramming] math/calculus hooks and under

2022-09-29 Thread Raul Miller
On Fri, Sep 30, 2022 at 12:52 AM Henry Rich wrote: > I thought there was a rudimantary D.-replacement in the addon > but my memory may be faulty. Your memory is fine, mine... not so much. Thanks, -- Raul -- For information abo

Re: [Jprogramming] math/calculus hooks and under

2022-09-29 Thread Elijah Stone
J already shares some of mathematica's strengths (interactivity, integrated visualisation, data analysis). And I think a high quality symbolic manipulator is well within reach. But https://reference.wolfram.com/language/tutorial/SomeNotesOnInternalImplementation.html gives some idea of its sh

Re: [Jprogramming] math/calculus hooks and under

2022-09-29 Thread Elijah Stone
I see, thanks. Comments indicate deriv is d. and pderiv is D.; I haven't looked too closely yet. Early macsyma would be great; like I said, I don't think mathematica is remotely viable. I tried to provide a roadmap to get there because, from what I can tell, the calculus addon is not even cl

Re: [Jprogramming] math/calculus hooks and under

2022-09-29 Thread Henry Rich
The implementation of D. was buggy.  I hope we can do better with the addon.  I thought there was a rudimantary D.-replacement in the addon but my memory may be faulty. With enough Jers contributing maybe this could be a competitor to Mathematica.  Time will tell. Henry Rich On 9/30/2022

Re: [Jprogramming] math/calculus hooks and under

2022-09-29 Thread Raul Miller
Yes, rank 0 a valid assumption. Sort of: J used to have two derivative words, d. (rank 0) and D. (jacobian). As near as I can tell, the library only replaces d. and does not yet provide a D. implementation. That said... I would not think of this as a mathematica competitor -- more like an early

Re: [Jprogramming] math/calculus hooks and under

2022-09-29 Thread Elijah Stone
I have no control over the calculus addon, but I mark the equivalent treatment of &. and &.: and therefore would like to ask a clarifying question. Is it assumed that all verbs to be derived are applied monadically at rank 0? I can imagine an implementation of multivariate calculus would be in

[Jprogramming] math/calculus hooks and under

2022-09-29 Thread Jan-Pieter Jacobs
Hi folks, Mostly as a heads-up: I just submitted a pull-request for the math/calculus addon which adds hooks, under, NVV forks and fixes some bugs. You can find it here: https://github.com/jsoftware/math_calculus/pull/9 . Any comments are highly appreciated! My main motivation for messing around