Inverse hyperbolic secant : Representations through equivalent functions (subsection 27/02/09/29)

ArcSech

$Mathematica Notation$

Involving sech^-1(2^1/2/(1-(1+z²)^1/2)^1/2)

Involving sech^-1(2^1/2/(1-(1+z²)^1/2)^1/2) and cosh^-1(i z)

Involving sech^-1(2^1/2/(1-(1-z²)^1/2)^1/2) and cosh^-1(z)