! xmin xmax n ! 0.0 0.5 1 0.5 1.0 0 1.0 1.5 3 1.5 2.0 4 2.0 2.5 6 2.5 3.0 3 3.0 3.5 3 3.5 4.0 4 4.0 4.5 5 4.5 5.0 7 5.0 5.5 4 5.5 6.0 5 6.0 6.5 2 6.5 7.0 0 7.0 7.5 1 7.5 8.0 0 8.0 8.5 0 8.5 9.0 1 9.0 9.5 0 9.5 10.0 0