sinh r − 1 ( x ) ⋅ 180 π = sinh d − 1 ( x ) {\displaystyle \sinh _{r}^{-1}(x)\cdot {\frac {180}{\pi }}=\sinh _{d}^{-1}(x)}
Example: sinh d − 1 ( 0.75 ) ≈ 39.71440802747728681136215778124 {\displaystyle \sinh _{d}^{-1}(0.75)\approx 39.71440802747728681136215778124}
cosh r − 1 ( x ) ⋅ 180 π = cosh d − 1 ( x ) {\displaystyle \cosh _{r}^{-1}(x)\cdot {\frac {180}{\pi }}=\cosh _{d}^{-1}(x)}
Example: cosh d − 1 ( 0.75 ) ≈ 751.85603876207549021319455979494 {\displaystyle \cosh _{d}^{-1}(0.75)\approx 751.85603876207549021319455979494}
Example: tanh d − 1 ( 0.75 ) ≈ 71.972254550406086233234774472826 {\displaystyle \tanh _{d}^{-1}(0.75)\approx 71.972254550406086233234774472826}
