ELI5: Explain Like I'm 5

Density (polytope)

Hey kiddo, do you know what density means? It means how many things are packed into a certain amount of space. For example, if we put 10 toys in a small box, that box would have a higher density compared to a bigger box that also had 10 toys in it.

When we talk about a polytope, we're talking about a shape with many sides like a cube or a pyramid. Now, the density of a polytope is a little trickier. You see, we can't just count how many toys are in the box because the polytope can be any size. So instead, we use a fancy math idea called volume.

Volume is how much space something takes up. If we have a big cube, it takes up more space than a small cube, so it has a higher volume. When it comes to polytopes, we use volume to figure out the density.

The density of a polytope depends on two things, how much space it takes up (its volume) and how many sides it has (its dimension). The more sides it has, the more packed it is and the higher its density.

So, imagine a giant cube and a tiny pyramid both with the same number of sides. The pyramid might be very small, but it has to fit all its shapes into a tiny space, so its density is higher than the giant cube even though they have the same number of sides.

So, in summary, density is how many things are packed into a certain amount of space, and for a polytope shape, we use volume and dimension to figure out how packed it is. The more sides it has, the higher its density.