Hm, seems that was actually slightly slower than using / . On 5 Nov 2011, at 01:59, Kip Murray wrote:
> Here is an example (u is +) > > ]a =: >: i. 5 > 1 2 3 4 5 > a +&.> <\. a > +---------+-------+-----+---+--+ > |2 3 4 5 6|4 5 6 7|6 7 8|8 9|10| > +---------+-------+-----+---+--+ > a +/ a > 2 3 4 5 6 > 3 4 5 6 7 > 4 5 6 7 8 > 5 6 7 8 9 > 6 7 8 9 10 > > > On 11/4/2011 8:27 PM, David Vaughan wrote: >> I have a dyadic verb which is applied on the same boxed list using x u/ y >> (where x=y), but this is inefficient because I only want to consider >> distinct pairs once. How can I do this? >> >> 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
