[Jprogramming] Tacit adverb definitions?

[Oleg Kobchenko]

Very creative! Is there a precedent of such
use of $: and : ?
 
Other possibilities
 
   + (1 $:  ] : ) 2    NB. m&v
3
   - (3 $:~ ] : ) 2   NB. u&n
_1


----- Original Message ----
From: Dan Bron <jf at dbron.net>
To: Programming forum <programming at jsoftware.com>
Sent: Thursday, July 6, 2006 2:22:19 PM
Subject: RE: [Jprogramming] Tacit adverb definitions?


>   o =: 1 : '{.u{:'
> Is there a corresponding tacit definition?

Thinking about it more, I would write this as:

       o =. {. $: {: : 

Which is tacit and superior to  1 : '{. u {:'  :

       2 + o 3
    5
       + o 2 3
    5

But if you can ensure that you're never called dyadically, and that monadic arguments are of length  2  , then write:

       o =. /     NB.  :)
   

-Dan
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