Attractive movies from a decorative pov. Smart FX. But I can't follow what's going on. I thought i knew how Plus worked with vectors -- but that still doesn't help me understand movies 2 and 3. Shouldn't it be working the other way round?
Maybe Plus is the wrong example to illustrate helpful teaching principles. Too facile? Doesn't bode well for more complicated primitives. But I'm not the one to judge. You should disregard whatever anybody says who already knows how Plus works. People are demonstrably bad at introspecting their own dawning awareness, let alone other people's. And we haven't even begun to consider variations in cognitive style. Can we find some representative novices who actually don't know how (vector) Plus works, and see if it "enhances their understanding" -- however that's to be measured? Some serious experimental design required here. As Groucho Marx said: "go out and get me a four-year-old!" BTW YouTube has suddenly sprouted unhelpful functionality. After running the example the window clutters with irrelevant junk, which is not a reassuring sight. Not your fault Bob -- and I can't see what you can do about it. Ian On Fri, Mar 5, 2010 at 5:57 PM, bob therriault <[email protected]> wrote: > Hey everybody, > > I've posted three versions of the Plus (+) animation on the Jwiki here: > http://www.jsoftware.com/jwiki/Vocabulary/plus > These incorporate previous suggestions of including J code, colliding 3d > matrix planes (with explosions!) and 2d rearrangements. I have my preference, > but I would love to have feedback from a wider sample. > > Cheers, bob > > On -Feb23-2010, at -Feb23-20105:22 PM, 0j1 wrote: > >> You could show the J code using variables such as x and y, and display the >> values of x and y graphically without showing how they were created. >> >> bob therriault wrote: >>> Hi Skip, >>> The challenge I faced with showing the J code for these reference videos was >>> how to create a matrix without introducing either the Shape ($) or Integer >>> (i.) verbs into the explanation (which increases both the duration and the >>> cognitive loading). For the tutorial approach, I think the 'coding window' >>> is >>> essential, but not so much for the reference. Any ideas on how I can get the >>> 'code' back into the reference video efficiently would be welcome. >>> Cheers, bob >> >> ---------------------------------------------------------------------- >> 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
