We don't quite understand what you mean by "empty spaces at the back of the polar array". Hopefully the following helps: When creating/editing an array, you can change the "Between" variable to reduce the space between objects in the array. You can also move your object closer to the "focal point" of the array, and once you finish creating the array, you can Explode it and delete the objects that overlap each other near the focal point.
how do i get rid of the empty spaces at the back of the polar array? I'm going for uniform auditorium seats
We don't quite understand what you mean by "empty spaces at the back of the polar array". Hopefully the following helps:
When creating/editing an array, you can change the "Between" variable to reduce the space between objects in the array. You can also move your object closer to the "focal point" of the array, and once you finish creating the array, you can Explode it and delete the objects that overlap each other near the focal point.