too easy
*//.~q: 4200
8 3 25 7
R.E. Boss
> -Original Message-
> From: Programming [mailto:programming-boun...@forums.jsoftware.com]
> On Behalf Of Kip Murray
> Sent: maandag 4 juli 2016 23:46
> To: programm...@jsoftware.com
> Subject: [Jprogramming] An easy
Notice my specification had (q:) "outside". Ric's brilliant solution meets
my specification. --Kip
On Tuesday, July 5, 2016, Martin Kreuzer wrote:
> Bill - Thanks; that's quite a shortcut -- my negligence: wasn't aware (q:)
> had also a dyadic use ...
>
> The closest I could get toward that ve
Bill - Thanks; that's quite a shortcut -- my
negligence: wasn't aware (q:) had also a dyadic use ...
The closest I could get toward that verb would now be
red=. [: ^/ __ & q:
red 4200
8 3 25 7
(didn't manage to keep (q:) "outside" ...)
-M
At 2016-07-05 11:10, you wrote:
q: in ^/__ q:
q: in ^/__ q:4200 is dyad
executed as
^/ ( __ q: 4200 )
Вт, 05 июл 2016, Martin Kreuzer написал(а):
> Please be patient while I elaborate;
>
> Ric -
> -
> Looking at your solution, I first read up on "Key" (x u /.. y) and came up
> with this example:
>
>2 3 2 3 3 (2&|)/. 9 5 7 6 4
>
Please be patient while I elaborate;
Ric -
-
Looking at your solution, I first read up on "Key" (x u /.. y) and
came up with this example:
2 3 2 3 3 (2&|)/. 9 5 7 6 4
1 1 0
1 0 0
which I interpreted as
* group the list on the left (2 2) (3 3 3), then
* partition the list on the right a
^/__ 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
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 verb red:
>
> red q: 4200
> 8 3 25 7
>
> --Kip Murray
>
>
>
> --
> Sent from Gmail Mobile
> ---
Consider
q: 4200
2 2 2 3 5 5 7
How would you "reduce" this to 8 3 25 7 ?
Write the verb red:
red q: 4200
8 3 25 7
--Kip Murray
--
Sent from Gmail Mobile
--
For information about J forums see http://www.jsoftware
I had thought the notion I had for pnm:
(}: (^ * ^~) }.)@(p:@x:@i.)
would be slower than prh:
2 */@(^ |.)\ p:@x:@i.
But they turn out not very different:
(100) 6!:2 'prh 40'
0.00277307
(100) 6!:2 'pnm 40'
0.00263127
9!:14 ''
j701/2011-01-10/11:25 build: Feb
there is also:
2 (^~ * ^)/\ p: i.6x
72 30375 1313046875 38532504363714053 61870237399093306018139447
which has a winking cat power :P
From: Roger Hui
To: Programming forum
Sent: Friday, October 17, 2014 7:49 PM
Subject: Re: [Jprogramming] An easy one
2 */@(^|.)\ p: i.6x
72 30375 1313046875 38532504363714053 61870237399093306018139447
On Fri, Oct 17, 2014 at 4:30 PM, Kip Murray wrote:
> 72 30375 1313046875
>
> The first of these numbers is (2^3) * (3^2) , the second is (3^5) * (5^3),
> and the third is (5^7) * (7^5) . You see the pattern
If one can take 2 3 5 and 3 5 7 as given, this might do:
*/2 3 5x (^ ,: ^~) 3 5 7x
If it was "do this for the first N primes", it would be
a little more complicated.
On 2014.10.17 18:30:14, you,
the extraordinary Kip Murray, spake thus:
>
> 72 30375 1313046875
>
> The first of these number
72 30375 1313046875
The first of these numbers is (2^3) * (3^2) , the second is (3^5) * (5^3),
and the third is (5^7) * (7^5) . You see the pattern involving successive
primes.
Write a J expression to produce the above list. --Kip Murray
--
Sent from Gmail Mobile
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