Re: [Jgeneral] Not J but Rosetta and ...

2023-11-22 Thread 'Michael Day' via General
Sorry, Raul, I'd forgotten about "chat!" The site seems to be up and going again. Thanks, Mike On 22/11/2023 14:52, Raul Miller wrote: This rosettacode thing is probably a chat forum issue rather than a general forum issue. That said, rosettacode has migrated to a different hosting service

Re: [Jgeneral] Fractals, Visualization and J - command failed: psel

2023-05-22 Thread 'Michael Day' via General
Yes, the example works for me, too, in J9.5 beta under Windows 11. I see that dwin.ijs starts with coinsert 'jgl2 fvj4' require 'trig gl2' coclass 'fvj4' I've never got the hang of "require" ! In the installation on this laptop,  which, like Raul's,  has all addons installed, there are 4

Re: [Jgeneral] Fwd: jios 903.2 released

2023-04-23 Thread 'Michael Day' via General
Sorry,  I should have posted the previous msg from my tiscali account.  I don't often use the gmail account for public use. Mike On 23/04/2023 14:04, Mike Day wrote: So if I wish to be sure of a clean reinstallation, may I assume that it is sufficient to save only my folders "user" and

Re: [Jgeneral] Rosetta Code: Levenshtein Distance

2022-11-24 Thread 'Michael Day' via General
I've just gone and had another look.  I checked and found that &.(-)  DOES have an effect. My nearly final version had   (<.>:) /\.  as the essential step.  I couldn't see why your levdist outperformed this,  until I removed the >: So I've cribbed your device and used this inessential (or

[Jgeneral] Rosetta Code: Levenshtein Distance

2022-11-15 Thread 'Michael Day' via General
Not sure if this is General or Programming - sorry if wrong. The J entry for this Rosetta Code "task",  at https://rosettacode.org/wiki/Levenshtein_distance#J offers 2 J functions; the first,  "levenshtein",  is a "literal transcription of the Wikipedia implementation", to be found at

Re: [Jgeneral] J903 crash

2022-11-10 Thread 'Michael Day' via General
Thanks,  Bill,  but please bear in mind that users can't update their iPad/iPhone releases of J in the same way as with versions of J9.03 & J9.04 for Windows/Linux/etc;  there's no option for PacMan. As my earlier message on this topic reveals,  Ian Clark has used J903 beta-k for his "JIOS"

Re: [Jgeneral] excessive time to extract the first element

2022-10-09 Thread 'Michael Day' via General
I don't know about the time for {.a,  but this modification helps a bit earlier on in the brute force process:    all=: {{ A#~x=".@>A=.   ~.   ,arith^:5 ":each y}} Putting in a few diagnostics,  I found in one run:    task '' terms: 4 7 7 8 9 10 target: 315 ┌─┬──┬──┐ │size

Re: [Jgeneral] i. into the middle of an array.

2022-08-30 Thread 'Michael Day' via General
Pascal Jasmin's findxth benefits greatly from this tweak: findxtha =: 4 : 0 'x m' =. xm x NB. m is sorted list of find indexes. x is match value. if. 0 = #m do. m =. 0 end. acc  =. i.0 oset =. 0 for_i. i. >./ m do. idx =. x i.~ oset }. y   NB. WAS idx =. x i.~ y if. idx = oset -~ # y do. acc

Re: [Jgeneral] Crash in J903

2022-04-01 Thread 'Michael Day' via General
I tried it on the iPad running J701 - but with greatly reduced array-size,  as it tends to crash just because of shortage of memory -  it's ok with both:    $each A;B +-+---+ |3 8 4|3 8| +-+---+    $result =. A  i."1 0  B        NB. Works OK 3 8    $result =. A  i."1    B       

Re: [Jgeneral] problem with web/gethttp

2022-03-31 Thread 'Michael Day' via General
e. Cheers, Mike Sent from my iPad On 30 Mar 2022, at 18:23, Raul Miller wrote: On Wed, Mar 30, 2022 at 9:05 AM 'Michael Day' via General wrote: #q=:gethttp 'https://code2.jsoftware.com/' 715 0 ... So a different result, but perhaps not what's expected. Is something still amiss,

Re: [Jgeneral] problem with web/gethttp

2022-03-30 Thread 'Michael Day' via General
FWIW,  since I don't really know this stuff,  I've retried <<     load'web/gethttp' #q=:gethttp 'https://code2.jsoftware.com/' >> a)  Without changing anything my end: << #q=:gethttp 'https://code2.jsoftware.com/' 715    100{.q curl: (60) SSL certificate problem: certificate has

Re: [Jgeneral] problem with web/gethttp

2022-03-29 Thread 'Michael Day' via General
I think I misunderstood the nature of Raul's problem.  Apologies, Mike On 29/03/2022 14:52, 'Michael Day' via General wrote: And yet this works on this laptop running Windows 11:    #qqq =. gethttp 'https://code2.jsoftware.com/' 715    qqq curl performs SSL certificate verification by default

Re: [Jgeneral] problem with web/gethttp

2022-03-29 Thread 'Michael Day' via General
And yet this works on this laptop running Windows 11:    #qqq =. gethttp 'https://code2.jsoftware.com/' 715    qqq curl performs SSL certificate verification by default, using a "bundle"  of Certificate Authority (CA) public keys (CA certs). If the default  bundle file isn't adequate, you can

Re: [Jgeneral] J903 on Pixel 6 Pro (Android)

2022-02-22 Thread 'Michael Day' via General
Tue, 22 Feb 2022 at 18:44, 'Michael Day' via General < gene...@jsoftware.com> wrote: Somewhat off topic - how do we update the app to 22-02-20 - or is it not necessary if the J engine is J901 beta-k? I'm loth to uninstall/reinstall & lose the stuff I set up last Autumn/Fall. This is on

Re: [Jgeneral] J903 on Pixel 6 Pro (Android)

2022-02-22 Thread 'Michael Day' via General
Somewhat off topic - how do we update the app to 22-02-20 - or is it not necessary if the J engine is J901 beta-k?  I'm loth to uninstall/reinstall & lose the stuff I set up last Autumn/Fall. This is on my wife's more up-to-date iPad running iOS 14.7.1.  (I've got an Android phone, but it's

[Jgeneral] Forum availability

2022-02-15 Thread 'Michael Day' via General
This should be under Chat, perhaps,  but that facility appears unavailable for me... I've just sent something to the Programming Forum;  I'd sent it earlier to the Chat Forum as it's probably not of much interest for programming now.  However, it did not appear in my inbox after two attempts

Re: [Jgeneral] Bugreport

2021-12-27 Thread 'Michael Day' via General
I should have said that this was in Jconsole.  However, I get the same result in JQt, too, and also in a JHS session. Mike On 27/12/2021 15:49, 'Michael Day' via General wrote: Ditto, also Windows (10),  so,  unsurprising?: JVERSION Engine: j903/j64avx2/windows Release-a: commercial/2021-12

Re: [Jgeneral] Bugreport

2021-12-27 Thread 'Michael Day' via General
Ditto, also Windows (10),  so,  unsurprising?: JVERSION Engine: j903/j64avx2/windows Release-a: commercial/2021-12-16T15:15:09 Library: 9.03.08 Platform: Win 64 Installer: J903 install InstallPath: c:/d/j903 Contact: www.jsoftware.com CHECKING OLD DEFINITIONS   (5 2$' ') (] (#~>:@+/) E."1)

Re: [Jgeneral] Fwd: Bug in J807/J902

2021-02-07 Thread 'Michael Day' via General
I don't think your problem was the spec of your pc,  although 8GB is pretty good. Mine, with 16GB RAM,  got stuck with taking all triples, seeming to need ~38GB, and Raul's analysis also suggests 40GB . Cheers, Mike On 07/02/2021 17:05, Francesco Pedulla' wrote: Thanks to all that

Re: [Jgeneral] Bug in J807/J902

2021-02-07 Thread 'Michael Day' via General
I see Brian Schott and RE Boss have already posted something. Sorry if this duplicates. Please note, first, that your output might not be quite right, as, for example.  the triple 8 9 10 evaluates as 990.  There should,  I think,  be only 120 unique base-10 triple values, but your example has

Re: [Jgeneral] bug special combinations sparse matrices

2020-10-28 Thread 'Michael Day' via General
I've just checked J701 (iPad) and J807 (AMD Laptop, Windows 10) - the wrongs are right there!  (ie results as expected in both cases) Mike On 28/10/2020 08:54, Jan-Pieter Jacobs wrote: Hi, I just found a bug I'd like to report in the execution of special code relating to the number of items

Re: [Jgeneral] Error reporting

2020-10-12 Thread 'Michael Day' via General
I expect the answer depends on your setup,  but, at least in mine, in JQt under Windows 10,  I have the line numbers option set to ON.   The sequence ALT-v-n toggles that option,  ie VIEW/Toggle Line Numbers If it's still difficult to spot what's going wrong,  you can try reloading your

Re: [Jgeneral] MathJax to Plain Text!?

2020-10-11 Thread 'Michael Day' via General
f the ranges of the two sequences starting with $a_0=\sqrt{\frac 1 2}$ and $a_0=-\sqrt{\frac 1 2}$. You are given $S(3) \approx 14.6461$ and $S(5) \approx 124.1056$. Find $S(25)$, rounded to 4 decimal places. I hope this helps, -- Raul On Sun, Oct 11, 2020 at 11:36 AM 'Michael

[Jgeneral] MathJax to Plain Text!?

2020-10-11 Thread 'Michael Day' via General
I wonder - how do other J-users trying to solve Project Euler problems cope with the (to me) fairly new display format,  which is apparently MathJax? Using Windows 10,  copy to get the problem statement into my J edit screen used to be adequate to get it where I need it as a set of NB. comment

Re: [Jgeneral] Bug in i.

2020-06-09 Thread 'Michael Day' via General
901 in Windows as well. On Tue, Jun 9, 2020 at 4:03 PM 'Michael Day' via General < gene...@jsoftware.com> wrote: Same in Windows (10) - unsurprisingly : JVERSION Engine: j902/j64avx2/windows Beta-a: commercial/2020-05-14T11:31:37 clang-9-0-0 Library: 9.02.03 Qt IDE: 1.8.7/5.12.7(5.1

Re: [Jgeneral] Bug in i.

2020-06-09 Thread 'Michael Day' via General
Same in Windows (10) - unsurprisingly :    JVERSION Engine: j902/j64avx2/windows Beta-a: commercial/2020-05-14T11:31:37 clang-9-0-0 Library: 9.02.03 Qt IDE: 1.8.7/5.12.7(5.12.7) Platform: Win 64 Installer: J902 install InstallPath: c:/d/j902 Contact: www.jsoftware.com Mike On 09/06/2020

Re: [Jgeneral] NYCJUG Monthly Meeting today

2020-04-14 Thread 'Michael Day' via General
That's a bit near bedtime - I might join you briefly! Mike On 14/04/2020 15:57, Devon McCormick wrote: Hi - I'm holding our monthly NYCJUG (New York City J Users Group) meeting via ezTalks. This is a new way of holding this meeting, so we'll see how well it works. Feel free to join us.

Re: [Jgeneral] error with Graphviz and/or webview in j901 under Windows

2020-03-02 Thread 'Michael Day' via General
the qt library is slim or full. On Sun, Mar 1, 2020 at 10:29 AM 'Michael Day' via General wrote: Hard to say, now, Raul - my general problem - with Graphviz and with Launchpad - seems to have somehow been of my own making. For years, I've resisted putting my user stuff into the Windows- and J

Re: [Jgeneral] error with Graphviz and/or webview in j901 under Windows

2020-03-01 Thread 'Michael Day' via General
Hard to say,  now, Raul - my general problem - with Graphviz and with Launchpad - seems to have somehow been of my own making. For years,  I've resisted putting my user stuff into the Windows- and J-Installation-preferred Users/mike_/jxxx-user folder,  and kept it in .../jxxx/user, 

Re: [Jgeneral] error with Graphviz and/or webview in j901 under Windows

2020-02-29 Thread 'Michael Day' via General
from https://www.jsoftware.com/download/j901/qtlib/ and extract it into bin. It sounds like the extract does not overwrite some files. Try deleting your J installation and install again. On Sat, Feb 29, 2020 at 8:29 AM 'Michael Day' via General wrote: Thanks, Chris. There are plenty

[Jgeneral] Launchpad curiosity

2020-02-29 Thread 'Michael Day' via General
Looking around for what might be wrong with my installation of JQt (concerning the problem running graphviz,  currently being discussed)  I noticed the JWiki page, https://code.jsoftware.com/wiki/Guides/Qt_IDE/Configure/Launch_Pad In my JQt session I tried Run/Launch Pad/qtdemo with this result:

Re: [Jgeneral] error with Graphviz and/or webview in j901 under Windows

2020-02-29 Thread 'Michael Day' via General
stall'full' but cannot save to bin? On Fri, Feb 28, 2020 at 2:56 PM 'Michael Day' via General wrote: OK, Chris - just back home from evening rehearsal ... This "log" records what I've done since then (J-wise, anyway): 0) have just closed down the one JQt session which I'd left open -

Re: [Jgeneral] error with Graphviz and/or webview in j901 under Windows

2020-02-28 Thread 'Michael Day' via General
OK, Chris  - just back home from evening rehearsal ... This "log" records what I've done since then (J-wise, anyway): 0) have just closed down the one JQt session which I'd left open - via exit'' 1) have run jconsole anew - here's a copy of the session:    JVERSION Engine: