Category:Definitions/Inverse Secant

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This category contains definitions related to Inverse Secant.
Related results can be found in Category:Inverse Secant.

Let $z \in \C_{\ne 0}$ be a non-zero complex number.

The inverse secant of $z$ is the multifunction defined as:

$\sec^{-1} \left({z}\right) := \left\{{w \in \C: \sec \left({w}\right) = z}\right\}$

where $\sec \left({w}\right)$ is the secant of $w$.

Also see