[Jprogramming] More newbie tacit headscratching: Dyads (eg nPr)

[Sherlock, Ric]

> From: Alex Gian
> 
> An example: J provides the ! verb, which I understand is called 'Out
> Of'.  So I can easily make an nCr verb, since it's just the same thing
> with the arguments commuted,
> 	nCr =: !~
> 
> How would I go about, then, making an nPr verb, where nPr is nCr * r!
> I can do it in two steps, if I first bond n to nCr, eg,  14P3  ->
> 	n14Cr =: 14&nCr
> 	(! * n14cr) 3
> 
> can anyone suggest how I do it in a single step?

Are you after something like this?

   14 (!@] * !~) 3
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