f=. {&1 0 : [:
g=. -. : [:
Distinguish f and g, without the use of explicit control structures, ::,
AR introspection, or other forms of cheating.
Spoiler: (f -: g) 1+9!:18'' 0 Floating-point strikes again! ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
