Thanks Harvey, Something had bothered me about moving the right argument over the left, but I couldn't put my finger on it. The data/control relationship between x and y may have been part of it. I would guess that this would mean the moving the right argument in the 'reverse' cases of Divide (%), Minus (-), Sort (/:)(\:) etc. There are so many useful ideas that turn up as we stumble along this road!
Cheers, bob On -Mar20-2010, at -Mar20-20109:20 PM, PackRat wrote: > bob therriault wrote: >> I have a few questions about the covering the numbers. Does it make >> a difference to you which argument is placed on top when the scalar >> arguments are superimposed? > > Well, when I was first starting to learn J here, I was under the > impression from various posts on the Programming Forum that "y" (the > right argument) was USUALLY (not always!) the main data that was > operated upon (or controlled) by "x" (the left argument). (I may be > all wet with this understanding, but I interpreted that to be what the > experts and gurus here indicated--and that's what I shared with others > as I tried to proselytize J before I retired from librarianship.) > > So, *if* one set of data should remain stationary while the other > moves, it makes sense to me that the righthand data should remain > stationary and that the lefthand data should move (or go on top of the > righthand data). This would be especially useful, I think, with > primitives like # (copy), using a boolean left argument and a literal > (or numeric) right argument. > >> I am also considering dissolving in the result as the numbers collide >> (with a glow to indicate the operation). > > That's essentially what I've been thinking of suggesting (you beat me > to it!) and seems very effective to me as a former teacher and somewhat > J newbie! > > Harvey > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
