I've always liked these (originally from a paper by Perlis and Rugaber on APL idioms):
TranX +. +./ .*.~ TranClo TranX^:_ (The argument should be a square boolean matrix). On 2020.03.14 12:19:30, you, the extraordinary 'PMA' via Chat, spake thus: > > So I want to ask, could y'all suggest a list > of maybe a dozen favorite J one-liners, that > I could send too? > > (Somewhere, I've still got one for APL from > eons ago.) -- Nollaig MacKenzie pgp key C6E9845A ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
