Just for fun. (under) is the equivalent of (&.:). Set it to the rank of the right verb to match (&.). But is it any faster?
under=:2 : 0 vi=.13 : ((v b._1),' y') (([:vi[:u v) : ([:vi([:v[)u[:v])) f. ) f=:+ under ^. 3 f 4 12 c=:(# under >)"> c ;:'This is a test' +-+-+-+-+ |4|2|1|4| +-+-+-+-+ f +----------------+-+------------------------------+ |+--+-+---------+|:|+--+-+-----------------------+| ||[:|^|+--+-+--+|| ||[:|^|+---------+-+---------+|| || | ||[:|+|^.||| || | ||+--+--+-+|+|+--+--+-+||| || | |+--+-+--+|| || | |||[:|^.|[|| ||[:|^.|]|||| |+--+-+---------+| || | ||+--+--+-+| |+--+--+-+||| | | || | |+---------+-+---------+|| | | |+--+-+-----------------------+| +----------------+-+------------------------------+ ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
