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Joshua Y
, …
Henry Rich
5
6:21 AM
Limit error on trig Circle functions
Thanks for the info Cliff (and Henry). I figured it would be an accuracy thing, as the only result I
unread,
Limit error on trig Circle functions
Thanks for the info Cliff (and Henry). I figured it would be an accuracy thing, as the only result I
6:21 AM
Henry Rich
,
Devon McCormick
3
Jan 14
Re: [Jforum] Problem with dictionary
Your factors are boxed, so your valuetype must be also. In the first version tree maps don't do
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Re: [Jforum] Problem with dictionary
Your factors are boxed, so your valuetype must be also. In the first version tree maps don't do
Jan 14
Joshua Y
, …
Henry Rich
3
Jan 14
Odd result with verb display Foreign (9!:2)
Fixed for next beta, thanks. I continually have to wring space out of the main control block, and I
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Odd result with verb display Foreign (9!:2)
Fixed for next beta, thanks. I continually have to wring space out of the main control block, and I
Jan 14
Devon McCormick
,
Marcin Żołek
3
Jan 14
Problem with dictionary addon
Great to see dictionaries featured in NYCJUG! Regarding the first issue, the verbs put, get, has, and
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Problem with dictionary addon
Great to see dictionaries featured in NYCJUG! Regarding the first issue, the verbs put, get, has, and
Jan 14
Pawel Jakubas
, …
Clifford Reiter
4
Jan 13
modular arithmetics for big numbers
thanks! indeed, floating type number sneaked in in one place. cheers, Pawel poniedziałek, 12 stycznia
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modular arithmetics for big numbers
thanks! indeed, floating type number sneaked in in one place. cheers, Pawel poniedziałek, 12 stycznia
Jan 13
Eric Iverson
, …
Pascal Jasmin
8
Jan 10
j9.7.0-beta8 available
correction to previous O definition O =. 2 : 'm , ''_'' , (>n) , ''_
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j9.7.0-beta8 available
correction to previous O definition O =. 2 : 'm , ''_'' , (>n) , ''_
Jan 10
Tom Arneson
,
bill lam
2
12/16/25
J android startup file
in the config folder jpath '~config' On Tue, Dec 16, 2025 at 5:43 AM Tom Arneson <tom@
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J android startup file
in the config folder jpath '~config' On Tue, Dec 16, 2025 at 5:43 AM Tom Arneson <tom@
12/16/25
John Dixon
, …
Henry Rich
8
12/15/25
integer overflow in J
In 32-bit J, integers are signed 32-bit. In 64-bit J, they are signed 64-bit. Henry Rich On 12/12/
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integer overflow in J
In 32-bit J, integers are signed 32-bit. In 64-bit J, they are signed 64-bit. Henry Rich On 12/12/
12/15/25
Tom Arneson
12/15/25
adding startup to J android
what folder should startup.ijs be placed it so ir runs on start up?
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adding startup to J android
what folder should startup.ijs be placed it so ir runs on start up?
12/15/25
Ak
,
Marcin Żołek
2
12/13/25
Syntax documentation: any_name ( vs. any_name(
Thanks for the report. Highlighting any_name( doesn't describe any relevant J syntax, so it is
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Syntax documentation: any_name ( vs. any_name(
Thanks for the report. Highlighting any_name( doesn't describe any relevant J syntax, so it is
12/13/25
Skip Cave
12/9/25
J Dynamic Functional Programming meetup
What happened to the J Dynamic Functional Programming meetup today (Tues Dec 9 - 2nd Tuesday)? I
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J Dynamic Functional Programming meetup
What happened to the J Dynamic Functional Programming meetup today (Tues Dec 9 - 2nd Tuesday)? I
12/9/25
Raul Miller
,
chris burke
3
12/8/25
Windows "Security"
The "keep the download" issue is independent of mcafee. The mcafee issue kicks in whenever
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Windows "Security"
The "keep the download" issue is independent of mcafee. The mcafee issue kicks in whenever
12/8/25
David Lambert
,
Henry Rich
2
12/4/25
Is system error truly the intent?
Fixed for next beta. Henry Rich On 12/2/2025 10:35 PM, David Lambert wrote: > I mistakenly used `:
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Is system error truly the intent?
Fixed for next beta. Henry Rich On 12/2/2025 10:35 PM, David Lambert wrote: > I mistakenly used `:
12/4/25
Thomas McGuire
, …
Pascal Jasmin
16
11/26/25
testing LLM code generation
The terseness of J, and terseness of its parsing rules and mathematical notation, makes it an ideal
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testing LLM code generation
The terseness of J, and terseness of its parsing rules and mathematical notation, makes it an ideal
11/26/25
Eric John Sargeant
11/25/25
j9.7 jpkg install
This "https://curl.se/docs/sslserts.html" as seen with 'install'jpkg'*' is
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j9.7 jpkg install
This "https://curl.se/docs/sslserts.html" as seen with 'install'jpkg'*' is
11/25/25
John Dixon
, …
Skip Cave
3
11/13/25
Did anyone know David Keith?
Obituary of David Keith: https://www.theglobeandmail.com/canada/article-david-keith-obituary-tech-
unread,
Did anyone know David Keith?
Obituary of David Keith: https://www.theglobeandmail.com/canada/article-david-keith-obituary-tech-
11/13/25
bobtherriault
, …
Raul Miller
10
11/12/25
The new ArrayCast episode is out.
After reading the transcript for this podcast, and spending a few days thinking about it (or, at
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The new ArrayCast episode is out.
After reading the transcript for this podcast, and spending a few days thinking about it (or, at
11/12/25
Eric John Sargeant
,
Leopold
2
11/12/25
keyword inconsistencies
Keywords are part of a language. Your example does not contain any. All of J's keywords can be
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keyword inconsistencies
Keywords are part of a language. Your example does not contain any. All of J's keywords can be
11/12/25
Skip Cave
, …
Devon McCormick
3
11/12/25
J Dynamic Functional Programming Monthly Meetup
Yes - thanks, Tom. You are exactly correct. I am in Spain now, returning soon. I sent out a notice to
unread,
J Dynamic Functional Programming Monthly Meetup
Yes - thanks, Tom. You are exactly correct. I am in Spain now, returning soon. I sent out a notice to
11/12/25
Leopold Perné
,
bill lam
2
11/8/25
android version and download page
It is a wiki, you can edit it by yourself. Please request wiki edit permission if needed. On Sun, Nov
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android version and download page
It is a wiki, you can edit it by yourself. Please request wiki edit permission if needed. On Sun, Nov
11/8/25
Remington Furman
11/7/25
Quadrature oscillators
I had fun investigating quadrature oscillators using J and the plot library. A quadrature oscillator
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Quadrature oscillators
I had fun investigating quadrature oscillators using J and the plot library. A quadrature oscillator
11/7/25
田天宇
, …
Arnab Chakraborty
3
11/5/25
[Jforum]Unicode varibles name
Right. Even J must have some sanity! Thanks and regards, Arnab On Mon, Nov 3, 2025 at 3:06 PM Henry
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[Jforum]Unicode varibles name
Right. Even J must have some sanity! Thanks and regards, Arnab On Mon, Nov 3, 2025 at 3:06 PM Henry
11/5/25
jaco erasmus
, …
More Rice
9
11/4/25
Beginner question: Importing CSV
Thank you! Using load'csv' worked! So I can do basic stats now. I guess the next step will be
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Beginner question: Importing CSV
Thank you! Using load'csv' worked! So I can do basic stats now. I guess the next step will be
11/4/25
Brian Schott
, …
Joshua Y
18
11/3/25
crossword puzzle creation
My quick-fix would be something like this cw =. (* ,:@":@{. ])&.> n =. (>: i. +/ , sp)
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crossword puzzle creation
My quick-fix would be something like this cw =. (* ,:@":@{. ])&.> n =. (>: i. +/ , sp)
11/3/25
Eric Iverson
11/2/25
j guest server
The j guest server has been updated to the latest JHS. The try: dissect '1+=/i.3' man'
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j guest server
The j guest server has been updated to the latest JHS. The try: dissect '1+=/i.3' man'
11/2/25
Eric Iverson
10/30/25
JHS update available
JHS has been updated. Please get the new version with pacman and try out the new stuff. The dissect
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JHS update available
JHS has been updated. Please get the new version with pacman and try out the new stuff. The dissect
10/30/25
robert therriault
10/25/25
A repeat of the 1982 interview with Dr. Ken Iverson on the ArrayCast
In 1982, journalist Whitney Smith sat down and talked to Dr. Ken Iverson about a variety of topics.
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A repeat of the 1982 interview with Dr. Ken Iverson on the ArrayCast
In 1982, journalist Whitney Smith sat down and talked to Dr. Ken Iverson about a variety of topics.
10/25/25
Ak
, …
bill lam
7
10/23/25
Reading large dimension PNGs Error: Qt cannot read PNG file
Thank you Bill. This works. Ak -------- Original message -------- From: bill lam <bbill.lam@gmail.
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Reading large dimension PNGs Error: Qt cannot read PNG file
Thank you Bill. This works. Ak -------- Original message -------- From: bill lam <bbill.lam@gmail.
10/23/25
Daniikk1012
, …
chris burke
8
10/19/25
A Rubik's cube notation interpreter with conditionals and macros
Thanks for the feedback! I have already included roboks.ijs in the project, but it only loads the
unread,
A Rubik's cube notation interpreter with conditionals and macros
Thanks for the feedback! I have already included roboks.ijs in the project, but it only loads the
10/19/25
Pascal Jasmin
, …
Ak
20
10/19/25
is there a need for byte integer data type?
I see. If I am correctly understanding the Techniques section, the method designs in some failure
unread,
is there a need for byte integer data type?
I see. If I am correctly understanding the Techniques section, the method designs in some failure
10/19/25