Yeah, unless your verb is expensive it's not worthwhile to avoid the duplication.
Henry Rich On 11/4/2011 10:10 PM, David Vaughan wrote: > 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 > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
