In APL i. 10 (using i. for iota) gives 1 2 3 … In J i. 10 gives 0 1 2 …
APL’s choice of counting origin 1 is one issue - In J 2 +/\ >:i. 10 3 5 7 9 11 13 15 17 19 The J Dictionary is a good reference. > On 2014 Oct 27, at 19:59 , Chris Wright <[email protected]> wrote: > > in apl (using i. for iota) > > 2+/i.10 > > gives pair wise additions > > 3 5 7 9 11 13 15 17 19 > > but j gives: > > 2 3 4 5 6 7 8 9 10 11 > > is there an n-wise reduction idiom or glyph for j? > > cheers and thanks > > Chris ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
