n阶 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
RI值 | 0.52 | 0.89 | 1.12 | 1.26 | 1.36 | 1.41 | 1.46 | 1.49 | 1.52 | 1.54 | 1.56 | 1.58 | 1.59 | 1.5943 |
n阶 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 |
RI值 | 1.606 | 1.613 | 1.621 | 1.629 | 1.636 | 1.640 | 1.646 | 1.649 | 1.656 | 1.659 | 1.663 | 1.667 | 1.669 | 1.672 |