Vercosine
From specialfunctionswiki
The vercosine function $\mathrm{vercos} \colon \mathbb{C} \rightarrow \mathbb{C}$ is defined by $$\mathrm{vercos}(z)=1+\cos(z),$$ where $\cos$ denotes cosine.
The vercosine function $\mathrm{vercos} \colon \mathbb{C} \rightarrow \mathbb{C}$ is defined by $$\mathrm{vercos}(z)=1+\cos(z),$$ where $\cos$ denotes cosine.
