When you perform calculations between two arrays, the calculation occurs between corresponding objects in each of the arrays. For example, here we have array X 1, 2, 3, and 4. That's a two-by-two array and another two-by-two array array Y containing 5, 6, 7, and 8. In this cell, I've created array Z, which is array X plus array Y. When I use that addition operator and create array Z and print array Z, you can see that I have 6, 8, 10, and 12. So my one in the top left has been added to the 5 in the top left of array Y to make 6. Two has been added to 6 for 8, 3 has been added to 7 for 10, and 4 has been added to 8 for 12.

If I try to perform a calculation between an array and a number, like here how I have array Z plus 10, you're gonna see that that tin is added to each object in the array.