 So, this is the third in a series of videos that I put together to show the enhanced display that I have developed. And this one is going to talk more about shapes and specifically shapes where one of the indices is a single one because that can be difficult to see in the standard display. And as an example, we'll take a look at this variable which gives us a 2 by 3 shape, at least that's what it looks like. But even though these look identical, if I take the first item of A, I get a list of three, at least that's what it looks like. And if I do the first item of B, I get a 2 by 3 shape, at least that's what it looks like. And the problem I have with that is what I'm seeing is not really telling me the full story. So, in my enhanced display I came up with a way that I could actually get a list of more information about how I was looking at things. So let's look at A. A is expected is the shape 2 by 3 and its integers, just in case you want that extra information. If I go to B, I have a gray background, its shape is 1, 2, 3 and what the gray background means is there's some number of leading ones and why am I already only worrying about the leading ones in the shape? Well, because a 1 inside the shape, so if I say put that together, I have no problem. That looks different, 2, 1, 3, than 2, 3, 2, 3 looks more like that, 2, 1, 3 looks like that. That's the spacing anyway. Of course we can see with the gray shade that that's not 2, 3 here, it's 1, 2, 3. So as I sort of dart around here, you can see that the different shapes look different if the 1 is inside not the leading one. If I put a number of leading ones in front, I can put any number of leading ones in front and as soon as I do it I'm back to this and I can't tell the difference how many leading ones until I do a hover, but that's a lot quicker than what the standard display is because what the standard display shows me is that same, I have no idea what shape that is unless I ask it, well of course I could put a shape in front, it would give me the shape back, so something like this, so that gives me the shape right back again in the standard display. So I can get it back, but it's much easier if I just do that, it tells me there's something to watch out for, I can go back and check it. So that's the way I've dealt with the singletons and the leading and as I said before, having ones inside were bounded by non-single indices, you can see the difference immediately. That kind of shows how effective the standard display is in showing shapes in J, but I found with the leading ones I really wanted to know that at least there was a difference because there are some things, how often I've been caught by something like that where I thought I was dealing with an atom, say that, and I want that to look like an atom and I want this to look differently, it's a list. And of course if I do something as simple as add another number to it, it's pretty obvious what it is, it's a list. But as soon as I take that away in the standard display, it becomes a lot less obvious and obvious is what I want, so that's why I've developed it that way.