Ok, I was wrong about it not being flat, but due to lack of support from my experience it is usually not used to represent grids in a simulation, as dealing wit

Ok, I was wrong about it not being flat, but due to lack of support from my experience it is usually not used to represent grids in a simulation, as dealing with it tends to involve loops, which may or may not be optimised away. In Fortran multidim arrays are supported so much that they are used everywhere. Even debuggers allow you to display arbitrary slices of multidim arrays in local scope.