Joey; I'm inclined to put this in the "so obvious in retrospect" category: The machinery that coord uses is essentially what monadic $. uses. It seems fitting that the implementor of $. (at least, I'm presuming so) would make the connection.
BTW, do you have a URL reference for this most efficient ~:? ------------------------------------------------------------------------ |\/| Randy A MacDonald | APL: If you can say it, it's done.. (ram) |/\| [EMAIL PROTECTED] | |\ | | The only real problem with APL is that BSc(Math) UNBF'83 | it is "still ahead of its time." Sapere Aude | - Morten Kromberg Natural Born APL'er | Demo website: http://156.34.82.188/ -----------------------------------------------------(INTP)----{ gnat }- ----- Original Message ----- From: "Joey K Tuttle" <[EMAIL PROTECTED]> To: "Programming forum" <[email protected]> Sent: Tuesday, January 30, 2007 1:37 PM Subject: Re: [Jprogramming] matrix to coordinates > At 09:03 -0800 2007/01/30, Roger Hui wrote: > > > > J6.02x J6.01c > >f M 0.530783 1.00664e8 0.524774 1.00664e8 > >g M 0.637148 1.21485e8 0.658235 1.21533e8 > >h M 0.274866 7.54994e7 0.847815 2.43272e8 > ^^^^^^^^^^^^^^^^^^ > As Jeff Shallit once said to me (about the > most efficient phrase for ~: in APL), "That's > cheating!" (or maybe he said "not fair" :) > > But nice! > > - joey > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
