Thanks Brian, that is great feedback. It was the true intent and you are right that I should mention it.
Also, the reason that the atom example has only a blue border is that the shape of an atom is empty, whereas the solid blue indicate the shape of the items. The blue border differentiates it from the list of length 1 which would be a solid blue background. The challenge that I face is that I don't want to get too far into the weeds when I am explaining something like Behead. That was one of the reasons that I made up an Items video, as it explains the concepts that are foundational to the explanation of verbs that operate on items. Your third point is actually why I included the empty examples. Often they are mentioned only in passing, when I think that the difference between items that are empty and no items is a foundational concept. If your confusion is a result of not being clear on the distinction, then I am okay with that if it leads to understanding. If the presentation confuses the issue further, then I have work to do. I am going to take another look at that at those empty examples. I did think about the further explanation of i. 0 2 and i. 2 0, but again that would bring a whole other verb into the discussion and I thought it better to just have s20 and s02 be what they are because I don't think for these purposes that it matters how they came to be that way. Just my thoughts. Any responses/disagreements would be welcome, as that is how these videos will improve. The nice thing about making these videos into labs is that I can address some of this in the examples and the text surrounding the video. I hope to have the Behead lab up later today and I will certainly think about your points as I develop it. Of course, if the confusion is deep enough then the solution is to redo the video! Cheers, bob > On Jun 2, 2019, at 8:21 AM, Brian Schott <[email protected]> wrote: > > Bob, > > I think I noticed a pattern where each "item" in each example has a > separate blue background. > If that is the true intent, > a) you might mention it > b) in the first "atom" example, the item has a blue border, only. > c) I get a little confused after that with s20 and s02, maybe because I > have difficulty understanding the difference between empty items and > non-existent items. It's especially important for the backgrounds and > borders to be consistent. (It might even be helpful to make clear that s20 > and s02 are i. 2 0 and i. 0 2, if that is correct.) > > Very nice examples. > > On Sat, Jun 1, 2019 at 5:43 PM 'robert therriault' via Programming < > [email protected]> wrote: > >> I just posted a new video on the Behead Monadic Verb. It is along the >> lines of the last one (Head Monadic Verb) and I will be putting up some >> labs pased on it in the next day or two. >> >> Any suggestions and/or comments are welcome. >> >> https://youtu.be/7T53JdaE0HY >> >> Cheers, bob >> ---------------------------------------------------------------------- >> For information about J forums see http://www.jsoftware.com/forums.htm >> > > > -- > (B=) <-----my sig > Brian Schott > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
