2nπ±π6,n∈Z2 n \pi \pm \frac{\pi}{6}, n \in \mathbb{Z}2nπ±6π,n∈Z
2nπ±π3,n∈Z2 \mathrm{n} \pi \pm \frac{\pi}{3}, \mathrm{n} \in \mathbb{Z}2nπ±3π,n∈Z
2nπ±2π3,n∈Z2 \mathrm{n} \pi \pm \frac{2 \pi}{3}, \mathrm{n} \in \mathbb{Z}2nπ±32π,n∈Z
2nπ±5π6,n∈Z2 \mathrm{n} \pi \pm \frac{5 \pi}{6}, \mathrm{n} \in \mathbb{Z}2nπ±65π,n∈Z
