Oops.
I meant:
+/".,' ',.~":2^1000x
1366
However, David Lamberrt
cleaned it up even more...
+/".,.":2^1000x
1366
Skip
Skip Cave
Cave Consulting LLC
On Wed, May 28, 2014 at 2:34 PM, Kip Murray <[email protected]> wrote:
> a =. 2^1000x
> +/".,' ',.~a
> |domain error
> | +/".,' ' ,.~a
> VERSION
> 1.3 5
>
> Above run on my iPad Air
>
> On Wednesday, May 28, 2014, Skip Cave <[email protected]> wrote:
>
> > Is this terse enough for you?
> >
> > a =. 2^1000x
> > +/".,' ',.~a
> > 1366
> >
> > Skip
> >
> >
> >
> >
> >
> >
> > Skip Cave
> > Cave Consulting LLC
> >
> >
> > On Wed, May 28, 2014 at 1:02 PM, Devon McCormick <[email protected]
> <javascript:;>>
> > wrote:
> >
> > > In general, I've noticed that Haskell is often J's closest rival in
> terms
> > > of terseness. However, based on my admittedly slight acquaintance with
> > > Haskell, it does not seem as general or as well-thought-out
> notationally
> > as
> > > J is but this latter point is true of almost all other languages.
> > >
> > >
> > > On Wed, May 28, 2014 at 11:35 AM, Jon Hough <[email protected]
> <javascript:;>>
> > wrote:
> > >
> > > > Project Euler 16 is defined:
> > > > 215 = 32768 and the sum of its digits is 3 + 2 + 7 + 6 + 8 = 26.What
> is
> > > > the sum of the digits of the number 21000?
> > > > http://projecteuler.net/problem=16
> > > >
> > > >
> > > > My J solution:NB. create base
> > > > base =. 302 $ 10
> > > >
> > > > digitsum =. +/ @:(base & #:)"1@: (1000x &(^~)) digitsum 2
> > > > As a J beginner, clearly my code is not as terse or as elegant as it
> > > could
> > > > be. But browsing the solution forums I found this Haskell solution:
> > > > sum $ digits 10 $ 2^1000
> > > >
> > > > I don't know Haskell but the above code pretty much speaks for
> itself.
> > > > Clearly the solution is terse, simple and easy to
> understand.Comparing
> > > > Haskell to J, it seems one of J's strong points, terseness and rapid
> > > > program developing, doesn't hold up to Haskell so much as it does
> > against
> > > > C-style languages.
> > > > So my question is, what advantages does J hold over Haskell, in terms
> > of
> > > > speed, terseness etc?
> > > > Regards.
> > > >
> ----------------------------------------------------------------------
> > > > For information about J forums see
> http://www.jsoftware.com/forums.htm
> > > >
> > >
> > >
> > >
> > > --
> > > Devon McCormick, CFA
> > > ----------------------------------------------------------------------
> > > For information about J forums see http://www.jsoftware.com/forums.htm
> > >
> > ----------------------------------------------------------------------
> > For information about J forums see http://www.jsoftware.com/forums.htm
> >
>
>
> --
> Sent from Gmail Mobile
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
>
----------------------------------------------------------------------
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