p for Pythagorus theorem?
Don
(apologies for the tree format -I tried to get it to look good but blew it.)
On 12/6/2015 2:36 AM, Linda A Alvord wrote:
Neat! Guess what p stands for?
ffp=: 13 : '%:+/*:x,y'
5!:4 <'ffp'
┌─ [:
├─ %:
──┤ ┌─ [:
│ ├─ / ─── +
└────┤
│ ┌─ [:
└─────┼─ *:
└─ ,
Linda
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Don Kelly
Sent: Saturday, December 5, 2015 7:23 PM
To: [email protected]
Subject: Re: [Jprogramming] My first J conjuction
how about
ff=: 13 : ' +/*:x,y'
4 ff 5
41
ff
[: +/ [: *: , 2 capped forks
5!:4< 'ff'
*┌─ [: *
**
*├─ / ─── + *
**
*──┤ *
**
*│ ┌─ [:*
**
*└─────┼─ *:*
**
*└─ , *
Don
On 12/4/2015 7:38 AM, Linda A Alvord wrote:
g looks more like forks than f:
f=: 13 :'x(*:@[ + *:@])y'
g=: 13 :'(*:x)+*:y'
(4 f 5)-:4 g 5
1
5!:4 <'f'
-- *:
-- @ -+- [
+- +
--+ -- *:
L- @ -+- ]
5!:4 <'g'
-- [:
----+- *:
│ L- [
--+- +
│ -- [:
L---+- *:
L- ]
Linda
-----Original Message-----
From: <mailto:[email protected]>
[email protected]
[ <mailto:[email protected]>
mailto:[email protected]] On Behalf Of Kip
Murray
Sent: Friday, December 4, 2015 1:20 AM
To: <mailto:[email protected]> [email protected]
Subject: Re: [Jprogramming] My first J conjuction
And you can use a fork in the definition of a conjunction:
of =: 2 : 'v@[ u v@]'
4 + of *: 5
41
On Thursday, December 3, 2015, Kip Murray <
< <mailto:[email protected]> mailto:[email protected]>
<mailto:[email protected]> [email protected]> wrote:
A fork is not a conjunction but it shows what you are doing:
4 (*:@[ + *:@]) 5
41
On Thursday, December 3, 2015, Lippu Esa <[email protected]
<javascript:_e(%7B%7D,'cvml','[email protected]');>> wrote:
It is 5:17 AM in Finland and I already have two good answers. Thank
you David and Pascal!
It seems that I haven't been using Compose either :) . But at least
I knew that this is the place to be.
Thanks again,
Esa
-----Original Message-----
From: < <mailto:[email protected]>
mailto:[email protected]>
<mailto:[email protected]>
[email protected] [mailto:
< <mailto:[email protected]>
mailto:[email protected]>
<mailto:[email protected]>
[email protected]] On Behalf Of David Lambert
Sent: perjantaina 4. joulukuuta 2015 5.14
To: programming < < <mailto:[email protected]>
mailto:[email protected]>
<mailto:[email protected]> [email protected]>
Subject: Re: [Jprogramming] My first J conjuction I expect you'll
get many of the same response. Your conjunction is fine, however
this particular case is so frequent there's a built in conjunction.
Read "but first",
x f&g y
or
x f&:g y
the difference being rank. Add but first square:
4 +&: *: 5
41
On 12/03/2015 10:05 PM,
< <mailto:[email protected]>
mailto:[email protected]>
<mailto:[email protected]>
[email protected] wrote:
Date: Fri, 4 Dec 2015 03:05:50 +0000
From: Lippu Esa< < <mailto:[email protected]> mailto:[email protected]>
<mailto:[email protected]> [email protected]> To:"
< <mailto:[email protected]> mailto:[email protected]>
<mailto:[email protected]> [email protected]"
< < <mailto:[email protected]> mailto:[email protected]>
<mailto:[email protected]> [email protected]>
Subject: [Jprogramming] My first J conjuction
Message-ID: <4C1D3F3685BCAE4699AA47F9961903BA33126CC3@VDOMES02>
Content-Type: text/plain; charset="us-ascii"
Hello everybody,
I realized with some shame that I haven't written a single J
conjunction - ever. Some adverbs, yes, but they too are newish.
I have a recurring need for sentences like (f x) g f y where verb f
is
applied to nouns x and y and dyadic verb g is then applied to the
two results.
and was thinking of something like x f c g y with c being a conjuction.
This is what was the result:
fxgfy=: 2 : 0
:
(v x) u v y
)
4 + fxgfy *: 5 NB. very simple example
4 + fxgfy *: 5
41
Is there a more natural J way to do this? What would be a good name
for
this type of conjunction or operation?
Esa
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