EuclidianDistance =: |@- (0 j. 0) EuclidianDistance (5 j. 4) 6.40312
TimeToSeconds =: _ 60 60 #. ] TimeToSeconds 12 10 4 43804 I also like nubcount from the 'misc' library nubcount=: ~. ;"_1 #/.~ nubcount 10 40 10 10 20 30 40 ┌──┬─┐ │10│3│ ├──┼─┤ │40│2│ ├──┼─┤ │20│1│ ├──┼─┤ │30│1│ └──┴─┘ And sort sort=: /:~ : /: Martin Pelletier ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
