See also http://www.jsoftware.com/jwiki/Essays/Under
----- Original Message ----- From: Roger Hui <[email protected]> Date: Monday, December 29, 2008 16:29 Subject: Re: [Jprogramming] How to use ": in boxed conversion? To: Programming forum <[email protected]> > I'm sure there's some APL history here: why is this primitive called > "under"? The definition tells what it does, but what's it good for? > That is, how (and for what purposes) is "under" used practically? > Besides you all, who in the world would ever think of such an > inversionof verbs? I mean, it's sort of a "do it" and then > "undo it" again after a key verb. http://keiapl.org/anec/#under0 ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
