Inverse hyperbolic functions

Mathematical functions

In mathematics, the inverse hyperbolic functions are inverses of the hyperbolic functions, analogous to the inverse circular functions. There are six in common use: inverse hyperbolic sine, inverse hyperbolic cosine, inverse hyperbolic tangent, inverse hyperbolic cosecant, inverse hyperbolic secant, and inverse hyperbolic cotangent. They are commonly denoted by the symbols for the hyperbolic functions, prefixed with arc- or ar- or with a superscript − 1 {\displaystyle {-1}} (for example arcsinh, arsinh, or sinh − 1 {\displaystyle \sinh ^{-1}}).

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