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:

$\map {\sec^{-1} } z := \set {w \in \C: \map \sec w = z}$

where $\map \sec w$ is the secant of $w$.

Also see