With $

   4 4 $   ,&]/  i. 4 4 3
 0  1  2
 3  4  5
 6  7  8
 9 10 11

12 13 14
15 16 17
18 19 20
21 22 23

24 25 26
27 28 29
30 31 32
33 34 35

36 37 38
39 40 41
42 43 44
45 46 47


Henry Rich

> -----Original Message-----
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of David 
> Vincent-Jones
> Sent: Sunday, April 08, 2007 8:43 PM
> To: 'Programming forum'
> Subject: RE: [Jprogramming] Singleton Reduction
> 
> How would one reverse that reduction?
> 
> $ ,&]/  i. 4 4 3
> 16 3
> 
> Assuming one knew the original form, from 16 3 back to 4 4 3
> 
> 
> -----Original Message-----
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Dan Bron
> Sent: Sunday, April 08, 2007 16:40
> To: 'Programming forum'
> Subject: RE: [Jprogramming] Singleton Reduction
> 
> 
> Leigh wrote:
> 
> >  I've noticed that with a rank adverb (i.e., ,"_1 / ) your prefered
> >  solution works.
> 
> Raul countered:
> >     $,/"_1]i. 1 2 3
> >  1 6
> 
> Ok then:
> 
>          $ ,&]/  i. 1 2 3
>       2 3
> 
> 
>          $  ,&]/  1$'a'
> 
>          
> By definition,   ,&]/   and  ,/   can't differ;  but since  
> ,&]/  isn't supported by special code, it doesn't suffer from the bug
> indicated by Roger.  OTOH, since it isn't supported by 
> special code, it is not as efficient as  ,/  .  But it's 
> nearly as terse, equally understandable, and is, until the 
> next release, more reliable than its optimized counterpart.
> 
> -Dan
> 
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