[Jprogramming] tacit programming

[Björn Helgason]

That is not giving the correct answer 43 for the first 15 primes

   (10 +/@:#: p:@:i.) 15
68
([: +/ [: > [: ".&.> [: [ [: {.&.> [: [ [: ":&.>@p: i.) 15
43



2010/11/16 Dan Bron <j at bron.us>

> Björn wrote:
> > The objective is to get the first number from a list of primes.
> >
> > Is there a better way of getting the first number from a list of numbers
> > putting them each in a box than making it first a character and the
> taking
> > the first of each element making it a number and summing up the resulting
> > list?
>
> I've always preferred to ask for digits directly (numerically), rather than
> projecting into the string domain and returning to the numeric domain:
>
>        10 +/@:#: p:@:i.
>
> -Dan
>
>
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
>



-- 
Björn Helgason, Verkfræðingur
Fornustekkum II
781 Hornafirði,
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