Gieseking constant
From specialfunctionswiki
The Gieseking constant $G$ is given by $$G=\displaystyle\int_0^{\frac{2\pi}{3}} \log \left(2 \cos \left(\dfrac{x}{2} \right) \right) \mathrm{d}x.$$
The Gieseking constant $G$ is given by $$G=\displaystyle\int_0^{\frac{2\pi}{3}} \log \left(2 \cos \left(\dfrac{x}{2} \right) \right) \mathrm{d}x.$$
