Definition:Inverse Cosecant/Complex/Arccosecant

Definition
The principal branch of the complex inverse cosecant function is defined as:
 * $\operatorname{arccsc} \left({z}\right) = \dfrac 1 i \ln \left({\dfrac {i + \sqrt{z^2 - 1} } z}\right)$

Also see

 * Derivation of Complex Arccosecant from Inverse Cosecant Multifunction