-0.3 0.0 0.3 0.5 0.8 1.1 1.4 1.6 1.9 2.2 2.4 2.7 3.0 -0.3 0.0 0.3 0.5 0.8 1.1 1.4 0.0 0.3 0.5 0.8 1.1 1.4 x y z
| ―
↺
↕ ↔
i