Haversine
From specialfunctionswiki
The haversine function $\mathrm{haversin} \colon \mathbb{C} \rightarrow \mathbb{C}$ is defined by $$\mathrm{haversin}(z)=\dfrac{1-\cos(z)}{2},$$ where $\cos$ denotes cosine.
Properties
References
- 1964: Milton Abramowitz and Irene A. Stegun: Handbook of mathematical functions ... (previous) ... (next): $4.3.147$
