Why did you use (/:~ : /:) rather than just (/:~)? I'd forgotten about the monad/dyad use of (:), so it took me a little while to parse that.
Ian Clark <[email protected]> writes: > Off-the-cuff... > > a=: 10123 > b=: 32110 > c=: 32100 > -:/ /:~ :/:@":&.> a,b > 1 > -:/ /:~ :/:@":&.> a,c > 0 > > > On Thu, Sep 22, 2011 at 10:41 PM, David Vaughan > <[email protected]> wrote: >> Hi, what is the best (fastest) way to check whether a number is a >> permutation of another number? >> I've tried listing all permutations of one number and checking whether the >> other number is in the list of permutations. This seems pretty slow, so I >> was hoping for a faster method. >> >> Thanks. >> ---------------------------------------------------------------------- >> For information about J forums see http://www.jsoftware.com/forums.htm >> > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
