Hi everyone, There is a new extended, large animation for Plus (+) at:http: //www.jsoftware.com/jwiki/Vocabulary/plus It is a bit longer than the previous ones, but I think it covers a great deal of information targeted at the level of a newcomer. Let me know what you think. I think there will also be a much shorter reference version, for those that don't need the extended version.
Cheers, bob On -Mar21-2010, at -Mar21-20107:18 AM, bob therriault wrote: > 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 ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
