I would write it from right to left: s=:2 e=:5 i=:0.25 s + i * i. 1 + (e-s) % i
x=:2 5 y=:i --/x 3 y%~--/x 12 (0{x)+y*i.>:y%~--/x 2 2.25 2.5 2.75 3 3.25 3.5 3.75 4 4.25 4.5 4.75 5 f=: 13 :'(0{x)+y*i.>:y%~--/x' 2 5 f 0.25 2 2.25 2.5 2.75 3 3.25 3.5 3.75 4 4.25 4.5 4.75 5 f (0 { [) + ] * [: i. [: >: ] %~ [: - [: -/ [ Notice that it cleaned up my act a little. So, what would the optimal code look like? Linda -----Original Message----- From: programming-boun...@forums.jsoftware.com [mailto:programming-boun...@forums.jsoftware.com] On Behalf Of Skip Cave Sent: Thursday, August 23, 2012 5:08 AM To: programm...@jsoftware.com Subject: [Jprogramming] Generating a sequence I would like to generate a vector sequence of numbers starting from s and going to e, with increment i here is an explicit function for that: s + i * i. 1 + (e-s) % i s =. 2 e =. 5 i =. 0.25 s + i * i. 1 +(e-s) % i 2 2.25 2.5 2.75 3 3.25 3.5 3.75 4 4.25 4.5 4.75 5 what would the tacit form of the sequence verb look like, if we defined the dyadic verb seq thus: (s,e) seq i -- Skip Cave Cave Consulting LLC ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm