On Fri, Apr 4, 2008 at 2:36 PM, Dan Bron <[EMAIL PROTECTED]> wrote:
> > I think that i.&.(p:inv)@+&2 would perform
> > this same operation more efficiently.
>
> It would, but then p. essentially says "primes", and would be no
> better a litmus test of J's obscurity than asking (as an exaggerated
> example) "what does + mean?".
After some thought on this subject, I am not sure if I care
about this issue (that p. does not have a built-in parallel
in other languages such as Java or SQL).
Readable J requires the reader be comfortable using
J's dictionary.
Also, I would argue that people with no access to J's
dictionary and interpreter do not understand what +
means.
Consider, for example:
2+3 4
or
2+3 4+5 6 7,:8 9
--
Raul
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