ed GUI code circa J 4.01.
>
> https://code.jsoftware.com/wiki/NYCJUG/2020-12-08#Learning_and_Teaching_J
> <https://code.jsoftware.com/wiki/NYCJUG/2020-12-08#Learning_and_Teaching_J>
——
Murray Eisenbergmur...@math.umass.edu
<mailto:mur...@math
ipts in
addons.
Where is it defined, and where is it documented?
——
Murray Eisenbergmur...@math.umass.edu
<mailto:mur...@math.umass.edu>
Professor Emeritus
Mathematics & Statistics Dept
Cheers, bob
>
>> On May 28, 2019, at 5:46 PM, Murray Eisenberg > <mailto:mur...@math.umass.edu>> wrote:
>>
>> I just used the Package Manager to update and stil find no such lab.
>>
>>> On27 May 2019 11:01:03 -0700, "'robert therriault&#x
sing jal in the IDE
> menu, specifically the lab files.
>
> Then you should see 'Video - The Head Monadic Verb - {.y' within the core
> group of labs. Listed alphabetically, it is at the bottom of the list.
——
Murray Eisenbergmur...@math.um
error: View_qtvideo_
| wd'set ',(>VM {'xs';'s';'sm';'m'),' value 1;’
——
Murray Eisenbergmur...@math.umass.edu
Professor Emeritus
Mathematic
ommercial/2019-01-22T16:42:49
Library: 8.07.22
Qt IDE: 1.7.9/5.9.7
Platform: Darwin 64
… I did execute “install ‘full’” and updated all packages, but then in jqt I
hit this error:
load 'graphics/graphviz'
graphview ‘'
interface error: spawn_jtask_
| x=. spawn
able graphviz obtainable via MacPorts?
——
Murray Eisenbergmur...@math.umass.edu
Mathematics & Statistics Dept.
Lederle Graduate Research Tower phone 240 246-7240 (H)
University of Massachusetts
710 North Pleasant Stree
, introduced in J807, base library 9.7.15, for installing
directly from github, does not seem applicable, as the files obtained from
graphviz.zip do not contain the requisite manifest.ijs.
——
Murray Eisenbergmur...@math.umass.edu
<mailto:mur...@math.umass.
ose J's delights to wider audiences.
>
> Have a look:
>
> https://github.com/bakerjd99/jod/blob/master/jodnotebooks/JOD%20Labs%20in%20Jupyter.ipynb
>
> https://github.com/bakerjd99/jod/blob/master/jodnotebooks/JOD%20Introduction%20Lab.ipynb
>
> https://github.com/bakerjd9
start using this as your base J
> system as appropriate, Your feedback is welcome and important.
——
Murray Eisenbergmur...@math.umass.edu
Mathematics & Statistics Dept.
Lederle Graduate Research Tower phone 240 246-7240 (H)
Univers
ng the “Try Restarting Now” button just results in
the same dead kernel situation.
What’s wrong?
——
Murray Eisenbergmur...@math.umass.edu
Mathematics & Statistics Dept.
Lederle Graduate Research Tower phone 240 246-7240 (H)
University of Mas
<https://brilliant.org/wiki/what-is-0-0/>
——
Murray Eisenbergmur...@math.umass.edu
Mathematics & Statistics Dept.
Lederle Graduate Research Tower phone 240 246-7240 (H)
University of Massachusetts
710 North Pleasa
rval, the 1st and
3rd thirds of that interval, and the 1st, 3rd, 7th and 9th ninths of that
interval. (I cannot include graphics here, but the output is show in my post
at
https://mathematica.stackexchange.com/questions/161024/extract-cell-indicators-from-meshregion/161098#161098
.)
——
Mur
ou mean by "an object is string"?
>
> This might do it:
> isString=: ' '= 1{.0{.,
>
> But note that this approach ignores the number of dimensions of the
> value (and don't get me started on "objects").
——
Murray Eisenberg
e
> '/users/murray/j64-806-user/jpp/jpp_test.ijs does not exist. You
> should be able to test that in finder (since that's an osx file naming
> pattern).
>
> Also, the right argument to timespacex needs to be quoted. (And, you
> should not have a : in that partic
Further, if now in the same jqt session to use menu command Tools > Package
Manager, I get error:
| runpacman_jpacman_ 0
|file name error: script
| 0!:0 y[4!:55<'y'
|value error: runpacman_jpacman_
| runpacman_jpacman_ 0
What’s wrong?
> On 2 Sep2017, at 4:53 P
ro is pretty neat. Runs a section of code in a file.
> Unlike ctrl-R, you don't need to be at the top level line in order to run the
> multiline group that encloses the current line.
——
Murray Eisenbergmur...@math.umass.edu
Mathematics & Statis
Where should one put which files from the jpp (J Plus Plus) distribution?
https://github.com/Pascal-J/jpp <https://github.com/Pascal-J/jpp>
And who’s the author? No namas of humans appear in the files or on the GitHub
page.
—-
Murray Eisenberg
staller should install libj.so and 9!:14 should show j64avx.
> Please try again and thanks for your patience.
——
Murray Eisenbergmur...@math.umass.edu
Mathematics & Statistics Dept.
Lederle Graduate Research Tower phone 240 24
ut I'm not clear enough with the train rules to put this all together
> on a single line.
> Any suggestions?
——
Murray Eisenbergmur...@math.umass.edu
Mathematics & Statistics Dept.
Lederle Graduate Research Tower phone 240 246-7240 (H
; or " at most" r.
> Sphere is the definition where the distance is equal to r.
>
>
> R.E. Boss
>
>
>> -Original Message-
>> From: Programming [mailto:programming-boun...@forums.jsoftware.com
>> <mailto:programming-boun...@forums.jsof
you.
>>
>> The sphere is the collection of points whose distance to the origin is
>> equal to the radius of the sphere.
>>
>> The ball or volume is comprised of the points whose distance to the origin
>> is equal or smaller than the radius of the sphere.
——
Murray
Pi^(n/2)
>> V(n) = --
>>Gamma(1+n/2)
>
> Which brings us back to the first line of the first post in this thread:
>
> sphvol=: (1p1&^%!)@-:@] * ^
>
> (The difference between sphvol and V(n) is t
P.S. If with Mathematica you do want to see decimal approximations, after the
input/output shown, do it with:
N[%] (* % is preceding output *)
{2., 3.14159, 4.18879, 4.9348, 5.26379, 5.16771, 4.72477, 4.05871, 3.29851,
2.55016}
> On 16 Aug2017, at 10:12 AM, Murray Eisenberg wr
ument is the number of dimensions.
>
> I put "n-volume" in quotes, because if the dimension is 2 (for
> example), the "n-volume" is what we call the area of the circle. (And
> if the dimension is 1 that "n-volume" is the length of a line
> segment).
t26 May 2017 16:43:57 +0800,bill lam <mailto:bbill@gmail.com>> wrote:
>
> lapack addons requires lapack binary installed on your computer.
> check manifest.ijs for instructions.
>
> also you may need to try various blas packages to see which one
> is the best
that the instructions at
http://code.jsoftware.com/wiki/System/Installation/All-in-One
<http://code.jsoftware.com/wiki/System/Installation/All-in-One> for Mac now say
to drag the j64-805 folder to /Applications.
That now nicely comports with where most Mac apps
roviding feedback will help clean things up so
> new users will have a smoother ride.
>
> See www.jsoftware.com <http://www.jsoftware.com/> and click Download.
——
Murray Eisenbergmur...@math.umass.edu
Mathematics & Statistics Dept.
tever as appropriate.
>
> On Sun, Nov 27, 2016 at 11:08 AM, Murray Eisenberg <mailto:mur...@math.umass.edu>>
> wrote:
>
>> Since jqt is not automatically installed, at least not with the .zip
>> download for macOS, it would seem to make sense to have a separate sc
for Jqt. I think when this settles down
> with the release the various launch bits from earlier releases that may or
> may not work will be dropped from the release.
>
> On Sat, Nov 26, 2016 at 3:42 PM, Murray Eisenberg <mailto:mur...@math.umass.edu>>
> wrote:
>
>>
e.com/wiki/System/Installation/QuickStartBase
> <http://code.jsoftware.com/wiki/System/Installation/QuickStartBase>
——
Murray Eisenbergmur...@math.umass.edu
Mathematics & Statistics Dept.
Lederle Graduate Research Tower phone 240 246-7240 (H)
University
er. Advancing the lab
> is all that you need to do to go through the videos for each section and they
> should play automatically. The videos are in .mp4 format and so should play
> on a variety of machines. If the videos do not playback for you, let me know
> the JVERSION you a
s (at least for this method),
>
> st&> 'fib2 475000';'fib3 475000'
>
> ?fib2 475000?1315200?43.1150201?56704874.5?
>
> ?fib3 475000?1313664?44.0851651?57913094.4?
> ???
t; No background sound ;-)
>>
>> https://youtu.be/O2mPbE9YGls?list=PLLcTTp6EQ_egylIerYEjCBbEVhnPzSdXP
——
Murray Eisenbergmur...@math.umass.edu
Mathematics & Statistics Dept.
Lederle Graduate Research Tower phone 240 246-7240 (H)
On 22 Nov 2014 11:33:15 -0500, Raul Miller wrote:
>
> Does http://www.jsoftware.com/docs/help602/user/scriptdoc.htm help?
>
> (You might also have to use j602 to get it to work properly. There's a
> lot of work to be done for j803.)
>
> Thanks,
>
> --
> Raul
to:programming-boun...@forums.jsoftware.com] On Behalf Of Murray
> Eisenberg
> Sent: Friday, November 21, 2014 08:32
> To: programm...@jsoftware.com
> Subject: [Jprogramming] Where is scriptdoc / scripdoc?
>
> I seem to recall a verb named either scriptdoc or scripdoc, in some
>
cfarlane.net/pandoc/)
>
> -Original Message-
> From: programming-boun...@forums.jsoftware.com
> [mailto:programming-boun...@forums.jsoftware.com] On Behalf Of Murray
> Eisenberg
> Sent: Friday, November 21, 2014 08:32
> To: programm...@jsoftware.com
> Subject: [Jprogramm
Files (in jqt), but alas that didn't give me a
>>> choice to search in the system or add ons directories -- just Demos,
>>> Projects, or User.
>>
>> Find in Files lets you search through any of your Folders. You can define
>> additional Folders in Edit|Co
ch in the system or add ons directories -- just Demos, Projects, or User.
——
Murray Eisenberg mur...@math.umass.edu
Mathematics & Statistics Dept.
Lederle Graduate Research Tower phone 240 246-7240 (H)
University of Massachusetts
710 North Pleasa
so cool".
(2) Finding all partitions of a given integer n into exactly k distinct
positive integers -- Don Baronet's article, "A tool of thought".
If so, would you be willing to share?
I ask because I'm a bit rusty with J, and have no access to any modern APL
interpreter
ng to rely upon the mailing
list)?
On 6 Aug 2014 14:06:22 -0700, "'Pascal Jasmin' via Programming"
wrote:
> load 'debug/dissect'
>
> will work from console and files. ?I think similar statements work for all
> items under /addons
>
>
>
quot;System ~install" line so I can search
> everything in the J installation.
>
> ?Also, dissect is under ?addons/debug/dissect
>
>
> On Wed, Aug 6, 2014 at 2:22 PM, Murray Eisenberg
> wrote:
>
>> Now just how do you recommend that one determine what file
t informative display using
> gl2 graphics. It is described at
>
> www.jsoftware.com/jwiki/Vocabulary/Dissect
>
> I think it could answer a lot of the language questions posed here.
——
Murray Eisenbergmur...@math.umass.edu
Mathematics & St
on
>> Chome/Win 8.1
>>
>> The codemirror editor always comes up in a small font. When you adjust the
>> editor font and then switch to another J tab the session font is way to
>> large.
>>
>> If it's possible to start the editor with the same f
> 5. iX section has info on iPhone/iPad/... client support
> 6. server busy - event ignored for new request when waiting for response
> 7. Config section expanded and an easier way to run a server
> configured for port etc.
> 8. codemirror 4.2
> 9. IE 11 HTML 5 support a
Sorry for misinformation. The Qt binaries are being installed in j64-802/bin,
but the Qt libraries are not being installed in j64-802. With 801, I see in
j64-801 a subfolder Qt which, in turn, has subfolders Frameworks and plugins.
On May 20, 2014, at 11:25 AM, Murray Eisenberg wrote
be a short beta. We'd appreciate feedback, either to the beta
> forum or if specifically on Qt, to the qt mailbox group.
>
——
Murray Eisenbergmur...@math.umass.edu
Mathematics & Statistics Dept.
Lederle Graduate Research Tower phone 24
/www.jsoftware.com/jwiki/System/
> ReleaseNotes/J802.
>
> Install the beta from http://www.jsoftware.com/download/j802/install.
>
> This should be a short beta. We'd appreciate feedback, either to the beta
> forum or if specifically on Qt, to the qt mailbox group.
e, right over the phone.
>
> -Dan
>
>
> [1] Code Review StackExchange question
>"Array whose values are the product of every other integer":
>
> http://codereview.stackexchange.com/questions/45498/array-whose-values-are-the-product-of-every-other-intege
01 on my MacBook. ... Noticed that the
> readme file said I had the J801 Beta. Depending on where I go to find the
> release notes I get either J801 or J701, which is disconcerting....
——
Murray Eisenberg mur...@math.umass.edu
Mathematics & Statistics Dept.
Leder
>
> 2 zeta 2e5
> 1.64493
> 3 zeta 1e5
> 1.20206
>
> this also works for non-integer arguments:
>
> 3.5 zeta 1e5
> 1.12673
> 3.5j0.5 zeta 1e5
> 1.11256j_0.053509
>
> Cheers,
> -Dan
>
> On 9 Mar 2014, at 11:54, Aai wrote:
>
>>
sum all
>
> I tested it
> 2 zeta >: i.100
> 1.63498
> This seems about right (should be about pi*pi/6) . . .
——
Murray Eisenbergmur...@math.umass.edu
Mathematics & Statistics Dept.
Lederle Graduate Research Tower
hould probably hit some of the existing
> documentation?
>
> For a promotional video we should instead, I think, focus more on issues of
> appeal than issues of satisfaction.
>
> But of course, there's plenty of space on youtube for satisfaction based
> videos, also.
>
er than what's on the video. But we quibble.
>
> 10&#.^:_1 ]!100x
> 9 3 3 2 6 2 1 5 4 4 3 9 4 4 1 5 2 6 8 1 6 9 9 2 3 8 8 5 6 2 6 6 7 0 0 4 9 0
> ...
> "."0": !100x
> 9 3 3 2 6 2 1 5 4 4 3 9 4 4 1 5 2 6 8 1 6 9 9 2 3 8 8 5 6 2 6 6 7 0 0 4 9 0
>
Saurer wrote:
>
>> ...My two cents (or 15 minutes) to show what J can do.
>>
>> Feedback is welcome.
>>
>> <https://www.youtube.com/watch?v=VSJpJt3c11c>
>> https://www.youtube.com/watch?v=VSJpJt3c11c
——
Murray Eisenbergmur...@math.
ic tables don't match, is it because of small differences? If the
> contents of two text files don't match, which lines are in one but not the
> other?
>
> I think the richness of the relations between the J characters outweighs
> the aesthetic advantage of the APL cha
h?v=bmiq47E5N-w and
> - Here is a Kona's "wow" factor:
> http://www.youtube.com/watch?v=WBXsCeW9qfc(we could do the same with
> the latest websockets implementation fairly
> easily I think) . . .
——
Murray Eisenberg mur...@math.umass.edu
Mathematics &
ar videos on J, but somehow we need to make it
> obvious and logical as to what to do. His video was neat, but could I do it
> as quickly and easily as he did it without putting in hours, possibly days
> learning their system? I doubt it.
>
>
> On Fri, Feb 14, 2014 at 7:17 PM, M
thing meaningful and get a pretty display in
> under 5 minutes. Ideally it should be a YouTube video, with an
> accompanying Lab so the interested user can reproduce the results.
——
Murray Eisenbergmur...@math.umass.edu
Mathematics & Statistics Dept.
;
> On Wed, Feb 12, 2014 at 11:52 PM, Murray Eisenberg
> wrote:
>> To repeat essentially the same questions I asked a couple days ago after
>> j801 release was announced and (yes, after emptying the browser cache)
>> downloaded j801_mac64.dmg and installed from there:
>
th in the About J window and by evaluating JVERSION in
jqt801.
By the way, what/where, in fact is the "engine" -- in which file? I presume
it's (in) one of the files in j64-801/bin.
——
Murray Eisenberg mur...@math.umass.edu
Mathematics & Statistics Dept.
mentation of standard library of J8 is now available as a
> chapter of the J User manual,
>
> * http://www.jsoftware.com/help/user/library.htm
>
> which is also part of the docs/help addons.
——
Murray Eisenbergmur...@math.umass.edu
Mathematics &
r jqt801.app,
I didn't need to unlock the preferences again.
On 10 Feb 2014 19:39:13 -0500, Eric Iverson wrote:
> J801 has been released, and can be downloaded from
> http://www.jsoftware.com/download/j801.
——
Murray Eisenbergmur...@math.umass.edu
Math
Engine information correct??
On 10 Feb 2014 19:39:13 -0500, Eric Iverson wrote:
>
> J801 has been released, and can be downloaded from
> http://www.jsoftware.com/download/j801.
——
Murray Eisenbergmur...@math.umass.edu
Mathematics & Statistics Dept.
unctionality embedded in the browser javascript. It
> works well in the latest versions of Firefox and Chrome. Not sure
> about Safari
>
> Prgramming opengl in javascript is straightforward and works well.
>
>
> Get the latest version of JHS and try:
&g
ht the animations were appealing when they first appeared. No
> feedback yet on whether they actually help people? -- I'll have to rely on
> you and others to collect that info from genuine novices.. .
>
——
Murray Eisenberg mur...@math.umass.edu
Mathemati
ou know just what they'll
> think.
>
> I've a lot more confidence now, writing an article for MagPi using J.
——
Murray Eisenbergmur...@math.umass.edu
Mathematics & Statistics Dept.
Lederle Graduate Research Tower phone 240 246-7
ger than
> the code itself,
> but the time needed to read it would not.
——
Murray Eisenberg mur...@math.umass.edu
Mathematics & Statistics Dept.
Lederle Graduate Research Tower phone 240 246-7240 (H)
University of Massachusetts
710 North Pl
to tell the user how to exit. Making a research project out of the first
>>> obvious desire is an unnecessary impediment to a language acquision.
>>>
>>> Additionally, since I discovered 'exit', a comprehensive dictionary of
>>> pre-defined verbs would
r purchase? Or,
>>> perhaps I should spend more time with the list above. . .
——
Murray Eisenbergmur...@math.umass.edu
Mathematics & Statistics Dept.
Lederle Graduate Research Tower phone 240 246-7240 (H)
University of Massachusetts
One Laptop Per Child. Since there has been no
> action on getting J packaged for Linux, I conclude that it is not
> possible to make any of that happen.
---
Murray Eisenbergmur...@math.umass.edu
Mathematics & Statistics Dept.
Lederle Graduate Re
open -a "Google Chrome" http://127.0.0.1:65001/jijx) &
> /Applications/j64-801/bin/jconsole ~addons/ide/jhs/core.ijs -js "
> init_jhs_'' "
>
> iMi7:~ jkt$ jhs8 &
> [1] 23263
> iMi7:~ jkt$
> J HTTP Server - init OK
>
> Requ
server when I start the machine and leave it
> running. Then it is always there when I want it from a browser.
>
> On Tue, Sep 24, 2013 at 4:41 PM, Murray Eisenberg
> wrote:
>> I just downloaded and installed the latest 64-bit J801, and the JAL, on my
>> Mac under
I just downloaded and installed the latest 64-bit J801, and the JAL, on my Mac
under OS X 10.8.5.
What do I do to get JHS to work? When I click the jhs801.app icon, nothing
seems to happen -- no browser window opens.
(The J801 console itself, and jqt801.app work just fine.)
---
Murray
)=fd fwrite p
> end.
> end.
> case. do.
> assert 0['unsupported feature'
> end.
> r
> )
> *** jt.ijs - end
>
> *** iosx.ijs - start
> echox_z_=: 3 : 0
> a=. 9!:36''
> 9!:37[4$0,1000+#y
> echo y
> 9!:37 a
> i. 0 0
> )
>
&g
a big difference
> in calculating the path for a rocket to Mars or farther. But for something
> like oil reserves in the ground we are lucky if even the first significant
> digit is correct.
---
Murray Eisenbergmur...@math.umass.edu
Mathematics &a
e reference material to
> WIKI and keep just examples in the lab. One of these days.
>
>
> On Mon, May 27, 2013 at 8:47 AM, Murray Eisenberg
> wrote:
>
>>
>> On 26 May 2013 15:32:47 -0600, Don Guinn wrote:
>>
>> That does it; thanks!
>>
&g
23:01:09 +0800, bill lam wrote:
> context sensitive help (ctrl-F1) on fread should open files.ijs
>
> Either I or you mis-remember or forget, this should have been
> asked by you and answered by me in J forum.
>
> ??, 27 ??? 2013, Murray Eisenberg ?(?):
>>
&
~ is mused as part of the
argument to jpath. But why can't/shouldn't J allow ~ as part of a file path if
jpath is not being used?
---
Murray Eisenberg mur...@math.umass.edu
Mathematics & Statistics Dept.
Lederle Graduate Research Towerphone 41
xt=./:~text
>
> text=.text,&.>LF
>
> (;text) fwrite x
>
> )
>
>
> The 'b' option means box each line.
>
>
> y is file to read,
>
> x is file to write sorted.
>
>
> If you are dealing with windows and need CRLF as a line sep
infile.txt
load 'text'
cuttext t
| value error: cuttext
What happened there?
[Hope this is not too basic for this forum (as compared with
gene...@forums.jsoftware.com).]
---
Murray Eisenbergmur...@math.umass.edu
Mathematics & Statistic
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