1. Definition
A stratified sampler takes two parameter \(N\) and \(M\). Given a rectangle to be sampled, it subdivides this rectangle into \(N \times M\) subrectangles of equal size. The sampler then returns the center point of each of these rectangles.

2. Comparison
n = 1 |
n = 2 |
n = 3 |
n = 4 |