Well it defined it in Windows 7 version of J, but couldn't access it.
(152{a.)=: i.3 3
(152{a.)
�
names 0
aspect filler filter_size g gussian kernel_size
m n r2 rho zks �
�
|spelling error
| �
| ^
It showed up as a b
Oh yes! This was in JQT 802.
On Fri, Sep 12, 2014 at 8:09 PM, Raul Miller wrote:
> I was using jqt 802 on desktop.
>
> FYI,
>
> --
> Raul
>
>
> On Fri, Sep 12, 2014 at 9:09 PM, bill lam wrote:
> > J implementation only allows 7 bit ascii alphabets for name. This is
> > relaxed in the unofficial
Rotate (Left/Up)
On Thu, Sep 25, 2014 at 4:21 PM, Henry Rich wrote:
> Funny, but 'rotate up' feels like 'rotate toward higher numbers' to me, i.
> e. rotate right.
>
> Henry Rich
>
> On 9/25/2014 6:16 PM, Raul Miller wrote:
>
>> Would "Rotate Up" work for you?
>>
>> Thanks,
>>
>> --
I checked IF64 on my phone and its value was zero. Help says that _3(3!:4)
only is valid for J64
On Tue, Oct 7, 2014 at 6:00 AM, Joe Bogner wrote:
> I have a android app that is logging sensor data to a text file using
> java's DataInputStream.writeLong[1]. It is logging a timestamp each
> time
>
> The simplest change would be to have some mechanism to convert it on J32,
> but it would need to be fairly performant as the file may easily have 1M+
> values.
>
>
>
> On Tue, Oct 7, 2014 at 9:34 AM, Don Guinn wrote:
>
> > I checked IF64 on my phone and its value w
I don't know if my phone is 32 or 64 bit. But J is 32 bit.
On Oct 7, 2014 8:32 AM, "Don Guinn" wrote:
> I took your numbers and did
>
>256#.0 0 1 72 224 139 75 119
> 1412516498295
>
> on my laptop and phone and got the same answer. But it was an integer
Select menu, Tools, Package Manager to install the addons which includes
plot tools.
On Thu, Oct 16, 2014 at 9:49 AM, Jerrold wrote:
> As a relatively user of J, I have concentrated on my Windows desktop
> system. Having had some success on Windows, I have been trying to load it
> on my androi
Menu/Edit/Session Font
On Sun, Oct 19, 2014 at 12:20 AM, Chris Wright
wrote:
> Hi
>
> Is there a way to change the session for for the jq
>
> --
> A/Prof Chris Wright
> MBBS, FRACP, FCICM, GradDipiSc(Physics)
> Academic Coordinator, Years III - V Central MBBS
> Intensive Care Specialist
> Facult
The actions of the bin s are still vague to me as to how and when widgets
stretch or not. As I understand, bin h and bin v create bins or rectangular
boxes in which other widgets can be placed either horizontally or
vertically. The "s" parameter can modify how widgets within a bin are
placed. But "
0 : 0
> pc B0HS1 closeok; pn B0HS1;
> bin h;
> bin h;
> cc b00 button;cn B00;
> cc b01 button;cn B01;
> bin z;
> bin h;
> cc b10 button;cn B10;
> bin s0;
> cc b11 button;cn B11;
> bin z;
> bin z;
> pmove 600 100 _1 _1;
> pshow;
> )
>
>
only stretch out horizontally. So their behaviour
> in bins depends on whether the bins are horizontal or vertical. If the
> enclosing "bin h" is changed to "bin v", then the behaviour again seems
> correct.
>
> On Tue, Oct 21, 2014 at 2:53 PM, Don Guinn wrote:
>
uttons are not greedy and there is no spacer inside the
> bin, therefore this bin will not participate in sharing the extra space.
>
> what you said:
> But "s" should not affect how widgets outside the containing bin
> are placed, other than changing the size of the bin.
>
The whole problem can be avoided by supplying arguments that do not
generate unwanted results.
(11+i.10)-table 1+i.10
+--+-+
|- | 1 2 3 4 5 6 7 8 9 10|
+--+-+
|11|10 9 8 7 6 5 4 3 2 1|
|12|11 10 9 8 7 6 5 4 3 2|
|1
Obverse/inverse applies to the monadic use of a verb. So,
+ b._1 NB. Conjugate
+
- b._1 NB. Negation
-
* b._1 NB. Signum. Cannot undo this.
|domain error
| *b._1
% b._1 NB. Inverse
%
When applied to a dyadic use it is interpreted as the left argument bound
to the verb making a m
e!
>
> 4*inv 7
> 1.75
>4 * inv 7
> 1.75
>4%7
> 0.571429
>7%4
> 1.75
>
> 4 + inv 7
> 3
>4-7
> _3
>7-4
> 3
>
> Linda
>
> -Original Message-
> From: programming-boun...@forums.jsoftware.com
> [mailto:p
2^^4
2.72697e16
^4
54.5982
2^54.5982
2.72707e16
The second ^ raises e to 4 or 6 power. Not sure about your expressions.
On Feb 17, 2015 10:12 AM, "Fausto Saporito"
wrote:
> HI!
>
> I'm a new J user with a little experience of APL and LISP.
>
> In these days I'm playing with big numbers...
prompt should be modified to adding * to the "sm prompt" as follows:
prompt=:3 : 0
'' prompt y
:
if. IFQT do.
wd 'sm prompt *',y,x
inp=. 1!:1 ] 1
len=. #y
(len * y -: len {. inp) }. inp
else.
y 1!:2 (IFWIN+.IFJHS+.IFIOS) { 4 2
1!:1 ] 1
end.
)
Without it prompt works rather strangely
As I understand it the I7 has 4 cores and each core has a pair of local
caches. So a processor can switch back an forth between 2 threads and the
cache does not have to be rebuilt. Cache memory can cause very interesting
problems. It works very well when multiple caches map widey seperated main
mem
to the final result is always boxes, which are compatible.
>
>>:&.> 1;'a';3 NB. error in >:
> |domain error
> | >:&.>1;'a';3
>
>
>#&.> 1;'a';3 NB. no error in #
> +-+-+-+
> |1|1|1|
> +-+-+-+
>
> H
Chapter 4 Section 1 - Diagnosing Errors
The error is reported as a domain error; however, that is incorrect. The
actual error is a framing error in (>). But because the (@) bindes the (>:)
to the (>) The framing error is hidden. I would suggest changing the (>:@>)
to (>:&.>) to avoid the framing e
What about the compiler used and the compiler options specified?
On Jun 22, 2015 9:16 AM, "bill lam" wrote:
> I guess the correct email address is
>
> source@jsoftware. com
>
>
> the gpl source is ok, not sure why you got so many tests failed.
> On Jun 22, 2015 10:48 PM, "Blake McBride" wrote:
What is the problem you're trying to fix?
On Tue, Jul 7, 2015 at 11:17 AM, 'Pascal Jasmin' via Programming <
programm...@jsoftware.com> wrote:
> An interesting concept is base256 encoding that is visually useful.
>
> As a simple test
>
> u: 256 + i.8 32
>
> ĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğ
> ĠġĢģ
An excellent tool! A real opportunity to extend the lab concept.
I question the "expert code" examples being all tacit. Nowhere in the lab
is tacit explained. And the "J by Point and Click" Wiki page specifically
recommends that tacit code should not be used as it could overwhelm the
beginner. All
utta there.
>
> Henry Rich
>
> On 7/8/2015 11:52 AM, Don Guinn wrote:
>
>> An excellent tool! A real opportunity to extend the lab concept.
>>
>> I question the "expert code" examples being all tacit. Nowhere in the lab
>> is tacit explained. And the
t=.i.3 3
0 3 1 2{"1 t,.10 11 12
0 10 1 2
3 11 4 5
6 12 7 8
--
For information about J forums see http://www.jsoftware.com/forums.htm
Attempted to upgrade to latest. Got app not installed. This is on a Samsung
S4. Rebooted and reinstalled. Still same problem.
--
For information about J forums see http://www.jsoftware.com/forums.htm
t;bill lam" wrote:
> Did you mean qtide-x86.apk? It is intended to run a Atom based
> android devices.
>
> Пн, 20 июл 2015, Don Guinn написал(а):
> > Attempted to upgrade to latest. Got app not installed. This is on a
> Samsung
> > S4. Re
Using polynomials to solve this problem is really neat, but why does it
work? I can't find anything on the internet explaining why it works.
p._720 2 3 1
+-++
|1|_5.5j7.72981 _5.5j_7.72981 8|
+-++
p.1;-8 9 10
720 242 27 1
Obviously th
and their expansions are algebraic solutions to
> special products. All the solutions posted used one of these 2 forms.
> (your example uses the 2nd's expansion)
>
>
> - Original Message -
> From: Don Guinn
> To: Programming forum
> Cc:
> Sent: Saturd
J verbs a noun when rank is applied. I always like that expression "Any
noun can be verbed".
v=.2 1 3"_
v
+-+-+-+
|2 1 3|"|_|
+-+-+-+
v 1 2
2 1 3
v0=.2 1 3"0
v0
+-+-+-+
|2 1 3|"|0|
+-+-+-+
v0 1 2
2 1 3
2 1 3
On Sun, Aug 9, 2015 at 5:08 PM, Raul Miller wrote:
> I
Thanks. I was being a little dense in forgetting that it is solving for x,
not for all values. My thinking gets a little muddled with grandkids
around. I was just surprised at the neatness of the solution.
I played with products of consecutive numbers greater than 3 (are those
still special produc
Is it easy to make line numbers set by form or tab? I like line numbers on
the edit form but not often on the execute form.
On Fri, Aug 14, 2015 at 9:07 AM, chris burke wrote:
> There is no config for this, but I will add it to J804.
>
> On 14 August 2015 at 06:10, R.E. Boss wrote:
>
> > How ca
how them in the terminal?
>
> On 14 August 2015 at 15:12, Don Guinn wrote:
>
> > Is it easy to make line numbers set by form or tab? I like line numbers
> on
> > the edit form but not often on the execute form.
> >
> > On Fri, Aug 14, 2015 at 9:07 AM, chris burke
Selected Studio/Labs in jhs jijx tab and got the message:
No labs installed.
Do pacman labs/labs install and try again.
The labs are installed. Verified that by looking at JAL list. Also they
show and run in jqt. But why does it say to use pacman to install the labs?
It's called "JAL" in jhs and
Tried to plot the expression (1 o. 0.01*i.995) and got an error symbol in
the plot area. Found an error message in the jijx tab but it didn't display
until I pressed the enter key.
First, the limit of less than 1000 data points seems a little small, but it
seems to be more than just the number of
I was about to try to reinstall the labs when I tried running the labs
under Microsoft Edge. There the labs were found. The failure I was
experiencing earlier where the labs were not found was using Google Chrome.
This is under Windows 10. Something funny about Chrome.
JVERSION
Engine: j803/201
ine for me, indeed plot 1 o. 0.01 * i.1 works fine. Why do
> you think there is a 1000 data point limit?
>
> What is your JVERSION?
>
> On 25 August 2015 at 16:27, Don Guinn wrote:
>
> > Tried to plot the expression (1 o. 0.01*i.995) and got an error symbol in
> &
is is not an error message from the usual plot, but sounds like google
> charts. Can you give me a simple session to reproduce the error you have?
>
> On 26 August 2015 at 06:25, Don Guinn wrote:
>
> > Sorry. Should have supplied the version. This is under Windows 10 and get
>
gt; load'pacman'
> 'update'jpkg''
> 'install'jpkg'graphics/plot'
> load'plot'
> plot 1 o. 0.01*i.1
>
>
> Ср, 26 авг 2015, Don Guinn написал(а):
> > Actually all I did was replace the 10$1000 in the input box in de
(ctrl and period)
>
> Ср, 26 авг 2015, Don Guinn написал(а):
> > I was about to try to reinstall the labs when I tried running the labs
> > under Microsoft Edge. There the labs were found. The failure I was
> > experiencing earlier where the labs were not found was using Goog
Great! It is nice to be able develop an app and run it on either jqt or jfe
without change
On Wed, Aug 26, 2015 at 4:41 PM, chris burke wrote:
> It is the same plot as in jqt, just output to a different device, so the
> usual plot docs apply.
>
> On 26 August 2015 at 15:23, Don
Looks like the dictionary entry for adverse got messed up.
http://www.jsoftware.com/help/dictionary/d312.htm
The examples are for permutation, not adverse.
--
For information about J forums see http://www.jsoftware.com/forums.htm
You're right. It just got lost in all the talk about permutations.
On Fri, Sep 4, 2015 at 9:03 AM, 'Pascal Jasmin' via Programming <
programm...@jsoftware.com> wrote:
> the example does use adverse though.
>
>
> - Original Message -
> From: Don
Just installed the Android emulator Bluestacks. Installed J on it and it
works well so far. Pretty fast compared to other Android emulators. I
selected the Windows version and am running it under Windows 10.
--
For information abou
How does this perform with small arrays?
On Sun, Sep 27, 2015 at 11:32 PM, 'Pascal Jasmin' via Programming <
programm...@jsoftware.com> wrote:
> these lists should tell you what supports double precision and what
> doesn't. For nvidia, it might only be some of the 700 series cards
>
> https://en
You could write out pertinent data to a file before ending the J session to
read back in when you run jconsole again.
On Mon, Nov 9, 2015 at 1:20 PM, Ian Clark wrote:
> > You should think of each terminal command line as simulating a separate
> run of the program you are modeling.
>
> That is my
If you want to make unique names for the monad and dyad definitions.
Shouldn't you also make it invalid to use the name for the wrong usage?
m1=: ([ + +) : [:
d1=: [: : ([ + +)
3 d1 4
10
3 m1 4
|domain error: m1
| 3 m1 4
On Wed, Nov 25, 2015 at 10:12 PM, bill lam wrote:
> A l
Just wait until we get to the year 2048.
On Dec 28, 2015 9:01 AM, "Jose Mario Quintana" <
jose.mario.quint...@gmail.com> wrote:
> Right, almost nobody writes, for example, 1023 as 1023 for obvious
> reasons although you can see irrelevant leading zeros displayed, for
> instance, by odometers.
Roll does accept floating point as long as the value is integral.
z=.16.5-3.5
3!:0 z
8
?z
9
On Mon, Jan 11, 2016 at 10:46 AM, Raul Miller wrote:
> On Mon, Jan 11, 2016 at 6:11 AM, Matthew Baulch
> wrote:
> > 2^.!21 is greater than 64 and 2^.!20 is less, so I'm guessing roll is not
> >
I tried using x: on a floating point number to see what happens. The
dictionary said that it produces a rational for floating point numbers.
Well, it is a rational, but it rounded to the nearest integer. I expected
it to give a rational with a denominator of 2. This was done on a 64 bit J.
z=.0
Replace periods with blanks then use 4!:0 to select words and eliminate
numbers and punctuation.
On Wed, Jan 27, 2016 at 5:33 AM, Henry Rich wrote:
> That's clever.
>
> Henry Rich
>
> On 1/27/2016 12:15 AM, Raul Miller wrote:
>
>> I guess I'd be inclined to do it like this:
>>
>> require'web/get
?0
0.335442
100*?0
87.2033
On Sun, Jan 31, 2016 at 8:27 PM, Linda A Alvord
wrote:
> Is there a standard way to make random trationals?
>
> Linda
>
> -Original Message-
> From: Programming [mailto:programming-boun...@forums.jsoftware.com] On
> Behalf Of Henry Rich
> Sent: Sunday,
I am attempting to read a .png file into a plot window. I entered
pd 'get png ',f
|psel : command failed: psel
: wd
| (LF,~wd ::(''"_)'qer')(13!:8)3
but got an error.
What is the format for the command? And is there an example of this
somewhere?
-
ented for that purpose.
>
>
> Пн, 01 фев 2016, Don Guinn написал(а):
> > I am attempting to read a .png file into a plot window. I entered
> >
> >pd 'get png ',f
> > |psel : command failed: psel
> > : wd
> > | (LF,~wd ::(''"_)
wever, that the page you referenced says that this requires
> media/platimg, and while
> http://code.jsoftware.com/wiki/Addons/media/platimg claims that j804
> is supported, that does not seem to be the case.
>
> --
> Raul
>
>
> On Mon, Feb 1, 2016 at 8:40 PM, Don Guinn wr
ound image, and implement that yourself (for example, replace
> white on the plot image with your background image). But it should be
> doable.
>
> --
> Raul
>
>
> On Mon, Feb 1, 2016 at 9:24 PM, Don Guinn wrote:
> > I was intending to use the picture as a background
Kind of a weird explicit version
fn=. 4 : 'x&(4 : ''((>:#y)|.x)/y'')\.y'
%`- fn 1 2 3 4 5 6 7
0.6 1.7 0.33 9 _5 _1 7
On Tue, Feb 23, 2016 at 8:51 PM, Pascal Jasmin
wrote:
> fn =: <@|.@[ (|.each@:|.@:($~ each 1 >. <:) 4 : 'x/ y' every <\.@]) ]
>
>
> %`- fn 1 2 3 4 5 6 7
> 0.6 1.
How about rounding to a rational of some precision like pi rounded to 22r7 ?
On Mar 9, 2016 8:52 AM, "Kip Murray" wrote:
> Thanks, Roger and Raul. Not understanding GCD +. I had a Rube Goldberg
> solution involving Format ": and Do ". --Kip
>
> On Wednesday, March 9, 2016, Roger Hui wrot
last search by
> something near a factor of 1000).
>
> Anyways, if you can say a bit more about what you were aiming for,
> maybe we could do a better job of getting there?
>
> Thanks,
>
> --
> Raul
>
> On Wed, Mar 9, 2016 at 11:18 AM, Don Guinn wrote:
> > Ho
When the same thing needs to be done to both the left and right arguments &
and similar conjunctions can do the job.
isRightTriangle =: =/&([:+/*:)
3 4 isRightTriangle 5
1
On Mon, Mar 28, 2016 at 2:26 PM, Adam Tornhill
wrote:
> I'm moving on to learn J and try to get some practical exerci
Perhaps defining mins as a verb would help.
mins=:4{6!:0
mins ''
56
On Sat, Apr 16, 2016 at 4:49 AM, Martin Kreuzer wrote:
> One of my teachers once told me "It's even sillier to not ask a silly
> question" ... so here I go:
>
> Extracting SystemDateTime I do get a vector like this
>]
"exit" is defined in 'system/main/stdlib.ijs' at line 226 in J804.
J provides tools for timer events (see QT Demos/timer) but these timer
events won't run until J is ready for input. So a noun like a current
minute will not update while a long running script is running. If it is
that you want a no
An example of a shared noun is in the break script. See verb break.
bin/jbreak.bat uses it to interrupt a running program. This does it at the
nuts and bolts level. The lab should give better examples, but this shows
it can be done.
On Wed, Apr 27, 2016 at 4:01 PM, Raul Miller wrote:
> You might
That is a dot product, a scalar zero on the left and a matrix on the right.
If you follow the rules of a dot product the scalar zero is treated as (1
2$0) giving the result.
On Thu, May 5, 2016 at 3:54 PM, Geoff Canyon wrote:
> So there are a few learning opportunities here -- euphemism for thin
Sounds like making sure that percentages add to 100%. Why people check that
is curious.
On May 20, 2016 1:11 PM, "'Pascal Jasmin' via Programming" <
programm...@jsoftware.com> wrote:
> Do you want an almost equal number of files in each group as well?
>
> A quick approach is to randomly split the
se ideas and see how they work.
>
> Thanks for everyone's input.
>
> On Fri, May 20, 2016 at 10:27 PM, Don Guinn wrote:
>
> > Sounds like making sure that percentages add to 100%. Why people check
> that
> > is curious.
> > On May 20, 2016 1:11 PM, "&#x
I'm not sure just how = goes about comparing boxed data, but opening the
boxes can be avoided by:
*/"1 a:=a
0 1 0
On Tue, May 31, 2016 at 11:48 PM, bill lam wrote:
> step by step example.
>
>] a=. a: (<1)} <"0 i. 3 5
> +--+--+--+--+--+
> |0 |1 |2 |3 |4 |
> +--+--+--+--+--+
> | | | | |
Sorry about the sloppy message earlier. Things go wrong when hurrying to
get ready to go shopping.
My proposal: That (13!:8), instead of displaying the statement containing
the signal (13!:8) which is the statement at the top of the stack that it
display the next statement in the stack, the one us
I might add, this is simplified to show concept or what I think it should
look like. If the next to top in the stack is a definition it's name and
line number need to be adjusted also. If debug is turned on I don't know
what the best way to do this is. Whether to display the next to top or the
top
there.
>
> Thanks,
>
> --
> Raul
>
> On Thu, Jun 2, 2016 at 7:32 AM, Henry Rich wrote:
> > I have not been able to follow the debug code all the way to the end,
> but it
> > appears to me that the stack doesn't exist except when debugging is
> turned
> > o
Then it should raise an error if debug is off.
--
For information about J forums see http://www.jsoftware.com/forums.htm
Rich wrote:
> You could add that to the bug list.
>
> Henry Rich
>
> On 6/2/2016 1:46 PM, Don Guinn wrote:
>
>> Then it should raise an error if debug is off.
>> --
>> For information ab
Given a string 6 3 3. Should the result be 6 6, or should it be 12?
On Jun 7, 2016 5:02 PM, "Ric Sherlock" wrote:
> Thanks Marshall!
> I really like this solution. Very clean and concise too.
> Identify adjacent numbers, double them, compress out the even ones.
>
> My solution using rplc worked f
You are not dealing with unicode. You have UTF8.
]s=. 7 u: 'ఝ' ,'a','ఝ' NB. s is converted to unicode.
ఝaఝ
$s
3
<"0 s
+---+-+---+
|ఝ|a|ఝ|
+---+-+---+
But the display still is messed up because the display first converts the
unicode to UTF8. Then does a byte count to determine
ou have a way to take a literal array in UTF8 and box the encodings
> for each character?
> >
> > I have seen your posts in the past and they have helped as I work
> through this process. Thank you.
> >
> > One of the ways that I am looking at dealing with
Oops, I should have said I replace a.i. with 3 u: as 3 u: works just like
a.i. for literal and UTF8 but does not fail with unicode. It actually w as
one would expect.
On Jun 16, 2016 1:45 PM, "Don Guinn" wrote:
> If I have to do much processing of UTF8 I convert to unicode
Could using CTRL-SHIFT-V fix the formatting problem?
On Jun 17, 2016 12:47 PM, "Brian Schott" wrote:
> Thanks. I see.
> So your main purpose to add this spacing "color" for easier human
> readability? Right.
> --
> For informatio
v=:3 : 'y,.<"0-~/"1".&>0 2{"1 y'
v E
++---++-+
|1809|Philip St. George Cooke|1895|86 |
++---++-+
|1836|Flora Cooke Stuart |1923|87 |
++---++-+
|1833|Jeb Stuart |1864|31 |
+---
t; One of the ways that I am looking at dealing with the width issue is to
> have the character display display in a smaller font so that some of the
> unicode display width issues can be resolved.
>
> Cheers, bob
>
> > On Jun 16, 2016, at 11:25 AM, Don Guinn wrote:
> >
&g
^/__ q:4200
8 3 25 7
On Mon, Jul 4, 2016 at 3:48 PM, Ric Sherlock wrote:
> How's this?
>*//.~ q: 4200
> 8 3 25 7
>
> On Tue, Jul 5, 2016 at 9:46 AM, Kip Murray wrote:
>
> > Consider
> >
> > q: 4200
> > 2 2 2 3 5 5 7
> >
> > How would you "reduce" this to 8 3 25 7 ?
> > Write the
Problem with literal2 with reshape ($).
Below is from Android but fails in Windows as well.
z=. 8 u: 16b1f600
z
😀
3$z
😊 3 !:3 z
|spelling error
| 😊 3 !:3 z
| ^
3!:3 z
e100
0200
0400
0100
0400
f09f9880
3!:3 ]3$z
e100
0200
0300
0100
How about brute force?
zigzag=:[:,./[:((5 4$' ')(0 0;2 0;4 0;2 2)}~])"1[:]_4,\]
zigzag 'PAYPALISHIRING'
P A H N
A P L S I I G
Y I R
On Tue, Sep 27, 2016 at 1:27 PM, Henry Rich wrote:
>zzc =: (#@] $ ((] , -) i.)@<:@[) ;@:(3 zzc 'PAYPALISHIRING'
> PAHNAPLSIIGYIR
>
> Henr
Scalar languages have a need for non-mutable arrays. Array languages do
not. As Bill said, all arrays in J are non-mutable. But names are not. As I
understand it, the in-place operations are allowed only for actions that
cannot fail part-way through leaving an array half-modified.
On Sun, Oct 2, 2
d and memory location
are synonymous. So the issue of non-mutable arrays and non-mutable names
are synonymous. In J they are not.
On Oct 2, 2016 8:29 AM, "Raul Miller" wrote:
> I don't think that scalar languages vs. array languages is the issue, here.
>
> Thanks,
>
&
ou work with unnamed memory.
>
> Thanks,
>
> --
> Raul
>
>
> On Sun, Oct 2, 2016 at 12:45 PM, Don Guinn wrote:
> >
> >
> > No it's not, but scalar thinking lets people get sloppy on keeping
> > dependencies well defined. Thinking in arrays forces on
assert. can only be used in an explicit definition.
On Oct 4, 2016 3:59 PM, "Michael Berry" wrote:
> It certainly does! I had no idea there were so many debugging facilities.
>
> On Tue, Oct 4, 2016 at 5:49 PM, Raul Miller wrote:
>
> > assert is based on 13!:8 http://www.jsoftware.com/help/
>
It is allowed for monadic ".
".48 9 57{a.NB. 9 is TAB
0 9
TAB is supposed to be white space.
On Wed, Oct 12, 2016 at 2:24 PM, Xiao-Yong Jin
wrote:
>_".48 9 57{a.NB. 9 is TAB
> _
>_".48 32 57{a. NB. 32 is SPC
> 0 9
>
> -
ist, & noticed that this has not been
> reported. The bug list is at
>
> http://code.jsoftware.com/wiki/System/Interpreter/Bugs/Errors
>
> This is the list I work from. If you want to get something fixed, write
> up a failing testcase and put it there.
>
> Henry Rich
&
Well, I wouldn't really consider it a bug, but normally given the same
argument, a function returns the same result no matter how many times you
run it. So when J evaluates a tacit expression it evaluates everything it
can when defined. So the (? bind 3) is evaluated and is replaced with the
consta
I think that in mathematics it's called a "pure function" which ? is not. j
assumes functions (verbs etc.) to be "pure functions".
On Thu, Nov 3, 2016 at 7:54 AM, Don Guinn wrote:
> Well, I wouldn't really consider it a bug, but normally given the same
> a
J has a verb "member" (e.) which gives true for if the item of the left
argument is an item in the right argument.
1 3 2 5 6 e. 4 2 1 3
1 1 1 0 0
Is that what you are looking for?
On Tue, Dec 6, 2016 at 5:11 AM, 'Jon Hough' via Programming <
programm...@jsoftware.com> wrote:
> Hi, Welcome to
Tried binding list1 to e. to see what the time would be. This could make a
difference where list1 doesn't change.
10 (6!:2) 'list2 e. list1'
0.0343888
e2=:e.&list1
10 (6!:2) 'e2 list2'
0.0160254
On Tue, Dec 6, 2016 at 2:29 PM, Ric Sherlock wrote:
>list1=: (i. 10e6)
>
>list2=: (
I just installed J in the default "Program Files". When I start jqt.exe I
get a security message asking if I really want to run it. jconsole.exe
works with no message. I am running Windows 10 The message is - "Notify me
when apps try to make changes to my computer (default)" I really don't
think on
Try running jqt as administrator.
On Tue, Dec 20, 2016 at 6:52 AM, 'Bo Jacoby' via Programming <
programm...@jsoftware.com> wrote:
> I get the message: "Unable to run Package Manager, as you do not have
> access to the installation folder."
>
> Den 12:31 tirsdag den 20. december 2016 skrev 'B
I'm a little confused as to where this is going. If the number of "("
equals the number of ")" does that mean that they are matched? Not
necessarily. The running sum of "(" minus ")" should never be negative.
What about a parin being inside a quoted string? Then there is the more
general problem wh
I'm not really sure how to interpret your second example either. But (0
1"1) is a verb, where (0 1) is a noun. The dictionary doesn't say what
happens if the selection for amend is a verb.
On Tue, Dec 27, 2016 at 10:26 AM, David Koppenhoefer <
david.koppenhoe...@iconmobile.com> wrote:
> Hi,
>
> I
ware.com/wiki/Vocabulary/curlyrtu#dyadic
>
> Henry Rich
>
>
> On 12/27/2016 12:41 PM, Don Guinn wrote:
>
>> I'm not really sure how to interpret your second example either. But (0
>> 1"1) is a verb, where (0 1) is a noun. The dictionary doesn't say what
>&g
Just played with the original expression a little and got:
2 4 (0 2"_)}3 2$0
2 0
4 0
0 0
2 4 (0 3"_)}3 2$0
2 0
0 4
0 0
2 4 (0 4"_)}3 2$0
2 0
0 0
4 0
2 4 (0 5"_)}3 2$0
2 0
0 0
0 4
2 4 (0 6"_)}3 2$0
|index error
| 2 4(0 6"_)}3 2$0
2 4 (0 _1"_)}3 2$0
2 0
0 0
0 4
On Tue, Dec 2
gt; 0 1
>
> 2 3
>
> 4 5
>
> Is it possible that x u}y is an artifact from that era?
>
>
>
>
> On 12/27/2016 3:06 PM, Don Guinn wrote:
>
>> Just played with the original expression a little and got:
>>
>> 2 4 (0 2"_)}3 2$0
>> 2 0
>
Obverse (:.) allows one to define an obverse to a user defined verb.
On Fri, Dec 30, 2016 at 7:08 AM, Adam Tornhill
wrote:
> After a few months off I'm back working through some problems in the
> Daylog APL challenge as a way of learning J. One problem is to shorten a
> message yet retain most r
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