Equal arguments should give equal function values, but not here. a=.i.5 b=.a j. 0 f=. 5&| a-:b 1 (f a)-:(f b) 0
f a 0 1 2 3 4 f b 0 1 2 _2 _1 -Bo ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
