Empty matrix

An empty matrix is like an empty box that we can use to put things in. Just like how we can put toys, books or other things in a box, we can put numbers, letters or other types of data in a matrix. But sometimes, we don't have anything to put in the matrix yet, so we call it an empty matrix. It's like having an empty toy box that we haven't put any toys in yet. It's important to have an empty matrix because it can help us organize information later when we do have things to put in it.