It finally occurred to me, months after the "rank with cyclic gerund" discussions, that J already has a cyclic gerund definition, in u;.3
However, testing it, I get a nonce error for the gerund case: (,.1 1) <;.3] i.4 ┌─┬─┬─┬─┐ │0│1│2│3│ └─┴─┴─┴─┘ (,.1 1) +:`-:;.3] i.4 |nonce error We even have the obvious simplification for the non-gerund case: 1 <;.3] i.4 ┌─┬─┬─┬─┐ │0│1│2│3│ └─┴─┴─┴─┘ I've not investigated the source code yet, behind that nonce error, I'm just leaving this here to give me a chance of remembering it, later. FYI, -- Raul ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
