-0.4 -0.3 -0.2 0.0 0.1 0.2 0.4 0.5 0.6 0.7 0.9 1.0 1.1 -0.1 0.0 0.1 0.3 0.4 0.5 0.6 0.8 0.9 1.0 1.2 1.3 1.4 0.0 0.1 x y z
| ―
↺
↕ ↔
i