I learned from Ken Iverson's "complete tensor" example in the dictionary entry for C. http://www.jsoftware.com/help/dictionary/dccapdot.htm
----- Original Message ----- From: ramacd <[EMAIL PROTECTED]> Date: Tuesday, January 30, 2007 11:05 am Subject: Re: [Jprogramming] matrix to coordinates > 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 > seemsfitting 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 ~:? > ----- 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
