/ / / ___ \ \ / / ___ \ \\
| | | \/ 6 | | | | \/ 6 | ||
Or|And|x <= atan|----------------|, 0 < x|, And|x <= - atan|----------------| + 2*pi, pi < x||
| | | _____________| | | | _____________| ||
| | | / ____ | | | | / ____ | ||
\ \ \\/ -3 + \/ 73 / / \ \\/ -3 + \/ 73 / //
$$\left(x \leq \operatorname{atan}{\left(\frac{\sqrt{6}}{\sqrt{-3 + \sqrt{73}}} \right)} \wedge 0 < x\right) \vee \left(x \leq - \operatorname{atan}{\left(\frac{\sqrt{6}}{\sqrt{-3 + \sqrt{73}}} \right)} + 2 \pi \wedge \pi < x\right)$$
((0 < x)∧(x <= atan(sqrt(6)/sqrt(-3 + sqrt(73)))))∨((pi < x)∧(x <= -atan(sqrt(6)/sqrt(-3 + sqrt(73))) + 2*pi))
/ ___ \ / ___ \
| \/ 6 | | \/ 6 |
(0, atan|----------------|] U (pi, - atan|----------------| + 2*pi]
| _____________| | _____________|
| / ____ | | / ____ |
\\/ -3 + \/ 73 / \\/ -3 + \/ 73 /
$$x\ in\ \left(0, \operatorname{atan}{\left(\frac{\sqrt{6}}{\sqrt{-3 + \sqrt{73}}} \right)}\right] \cup \left(\pi, - \operatorname{atan}{\left(\frac{\sqrt{6}}{\sqrt{-3 + \sqrt{73}}} \right)} + 2 \pi\right]$$
x in Union(Interval.Lopen(0, atan(sqrt(6)/sqrt(-3 + sqrt(73)))), Interval.Lopen(pi, -atan(sqrt(6)/sqrt(-3 + sqrt(73))) + 2*pi))