+`*`!`-/1 2 3 4 5
_1
   +`*`!`-/5 4 3 2 1
5

2012/1/3 Linda Alvord <lindaalv...@verizon.net>

> Here is another  WOW !
>
>   f=: 13 :'x*y'
>   f
> *
>   f/1 2 3 4 5 6 7
> 5040
>   */1 2 3 4 5 6 7
> 5040
>   !7
> 5040
>
> Sometimes the little surprises are amazing.
>
> Now how about Fibonacci ----
>
> Linda
>
>
> -----Original Message-----
> From: programming-boun...@jsoftware.com [mailto:
> programming-boun...@jsoftware.com] On Behalf Of Björn Helgason
> Sent: Tuesday, January 03, 2012 5:50 AM
> To: Programming forum
> Subject: Re: [Jprogramming] Binary representation without #: or #.
>
>    f/ 5 4 3 2 1
> x
> 2
> y
> 1
> x
> 3
> y
> 2
> x
> 4
> y
> 6
> x
> 5
> y
> 24
> 120
>
> 2012/1/2 Kip Murray <k...@math.uh.edu>
>
> > Linda, Björn has a wonderful answer for your problem as I understood it.
> >  Here is another example.  Suppose
> >
> >    f =: 4 : 'x * y'
> >
> > Then f/ 5 4 3 2 1 is 5 f 4 f 3 f 2 f 1 so
> >
> >
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
>
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
>



-- 
Björn Helgason, Verkfræðingur
Fornustekkum II
781 Hornafirði,
t-póst: gos...@gmail.com
gsm: +3546985532
twitter: @flugfiskur
http://groups.google.com/group/J-Programming


Tæknikunnátta höndlar hið flókna, sköpunargáfa er meistari einfaldleikans

góður kennari getur stigið á tær án þess að glansinn fari af skónum
          /|_      .-----------------------------------.
         ,'  .\  /  | Með léttri lund verður        |
     ,--'    _,'   | Dagurinn í dag                     |
    /       /       | Enn betri en gærdagurinn  |
   (   -.  |        `-----------------------------------'
   |     ) |         (\_ _/)
  (`-.  '--.)       (='.'=)   ♖♘♗♕♔♙
   `. )----'        (")_(") ☃☠
----------------------------------------------------------------------
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