On 01-06-13 13:48, Olivier N. wrote:
First, I understand I was unclear when stating my own goal: I try to create a closed form solution, without the use of any +/ summation and the likes.
correct!, telz isn't.
Here's an algebraic solution: telz=: 3 :0 zx=. <.-:y zm=. 1+<.y%3 +/>.-:(1&{-y-+/) (,:<:)zm+i.1+zx-zm )It seems that your solution does not respect the "zmax < -:y" asked by the OP. Eg. triangle-count(6) should be zero.
correct again! -- Met vriendelijke groet, @@i = Arie Groeneveld ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
