I disagree. Scalar and vector extensions are so old hat to you that you have forgotten just what a marvel they are.
I have been working with Ken's 1962 book "A Programming Language". There, it's only multiplication that has the scalar extension. And in example after example, I find myself urging, "Use scalar extension, Ken." (I say it with almost 50 years of hindsight, said hindsight provided by the same Ken.) e.g. http://www.jsoftware.com/papers/APL.htm , Section 1.9, 2nd paragraph: v = (2∊) |0 ⍳1(n) . With scalar extension for |, the expression simplifies to v = 2 |0 ⍳1(n) So my suggestion to Bob is, use a few demonstrations of scalar and vector extension, including some of the more unusual functions. ----- Original Message ----- From: "Sherlock, Ric" <r.g.sherl...@massey.ac.nz> Date: Sunday, February 7, 2010 12:15 Subject: Re: [Jprogramming] The Accessible Dictionary To: Programming forum <programming@jsoftware.com> > Yes, looks great, as well as instructive. I like the way you > draw the viewer's attention from one part of the screen to another. > > I agree with Tom that repeating all the steps of this animation > for other verbs seems like overkill. I wonder it perhaps this > one could become an example of argument extension - perhaps with > an additional "scene" or two using a rank 3 array to show how it > is all about extending the 'items'. > > > From: Tom Arneson > > > > I like it, and believe some music would be a good addition. > Just a few > > of > > these could be used as samples, that is there would be no need to > > repeat for > > other dyadic verbs with the same behavior. > > > > -----Original Message----- > > From: programming-boun...@jsoftware.com > > [mailto:programming-boun...@jsoftware.com] On Behalf Of bob > therriault> Sent: Sunday, February 07, 2010 10:15 > > To: Programming forum > > Subject: Re: [Jprogramming] The Accessible Dictionary > > > > Thanks for the sustained effort Ian et al, > > > > Speaking of content rich. Here is a test for animating the + (plus) > > verb > > with a variety of arguments. There is no audio (yet!) as this > needs to > > be > > timed carefully and requires the animation to be locked down. > > > > I welcome comments, this is a first pass. > > > > + (plus) animation > > http://www.youtube.com/watch?v=Mfvs8o5kmyg > > > > Cheers, bob > > > > On -Feb7-2010, at -Feb7-201012:50 AM, Ian Clark wrote: > > > > > > As we compose these content-rich pages, the requirements for the > > > template will gradually emerge. But no sweat if we don't get > it right > > > first time. So I suggest we just go ahead. Now! ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
