David Ward Lambert pointed out the known pitfall that occurs using : 13 :
Would these examples help in correcting the problem? why=: 13 :'y+y' NB. wrong why + why 3 3 why=: 13 :'y-y' NB. right why -~ why 3 0 why=: 13 :'y*y' NB. wrong why * why 3 1 why=: 13 :'y%y' NB. right why %~ why 3 1 why=: 13 :'y+y+y' NB. wrong why ] + + why 3 6 why=: 13 :'y-y-y' NB. right why ] - -~ why 3 3 why=: 13 :'y*y*y' NB. wrong why ] * * why 3 3 why=: 13 :'y%y%y' NB. right why ] % %~ why 3 3 Linda ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
