Thank you for encouraging me to understand the clever Binet's formula and ([: +/\ |.)^:(<12) 0 1 Fibonacci sequencers.
Here, the shapes match: ($|i.6);$|.i.6 (check out that dollar sign!) The values do not: |. i. 6 NB. reversed 5 4 3 2 1 0 | i. 6 NB. absolute value 0 1 2 3 4 5 Date: Tue, 4 Dec 2018 09:59:13 +0000 From: Linda Alvord <lindaalvor...@outlook.com> To: "programm...@jsoftware.com" <programm...@jsoftware.com> Subject: Re: [Jprogramming] Revisisting the Y combinator Message-ID: < bn6pr06mb31378b76771cacdb0478f58db5...@bn6pr06mb3137.namprd06.prod.outlook.com > Content-Type: text/plain; charset="utf-8" Mike, All I did was apply [:+/\ to two things that were identical. And got different answers. ($|i.6);$|.i.6 ┌─┬─┐ │6│6│ └─┴─┘ ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm