"Indices less their products"

--- Oleg Kobchenko <[EMAIL PROTECTED]> wrote:

> I like the idea of dyad -. but to me a more readable
> (or, conversely, expressive) would be
> 
>    (-. [:,*/~)@(2+i.)
> 
> Relation of -. adics
> 
>    1 2 3 4 -. 2 4 6
> 1 3
>    1 2 3 4 ([ #~ [EMAIL PROTECTED]) 2 4 6
> 1 3
> 
> 
> 
> --- Henry Rich <[EMAIL PROTECTED]> wrote:
> 
> > -.~/@(|. */ >:)@:>:@:i.
> > 
> > Henry Rich 
> > 
> > > -----Original Message-----
> > > From: [EMAIL PROTECTED] 
> > > [mailto:[EMAIL PROTECTED] On Behalf Of John Randall
> > > Sent: Friday, April 04, 2008 5:44 PM
> > > To: General forum
> > > Subject: Re: [Jgeneral] How readable is J?
> > > 
> > > > Dan Bron wrote:
> > > >      (#~ ] -.@:e. [: , */~)@:(2 + i.)
> > > 
> > > If the goal were readability, I would write
> > > 
> > > (#~ (-.@:e. ,@:(*/~)))@:(2 + i.)
> > > 
> > > This consistently uses f@:g rather than mixing in [: f g, and clearly
> > > displays two hooks, one of which (#~ f) is a standard idiom.  I am
> > > also not clear on the merits of ] f g .
> 
> 
> 
>       
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