Inverse Hyperbolic Functions
The Inverse of the Hyperbolic Functions, denoted 
, 
,
, 
, 
, and 
.
References
Spanier, J. and Oldham, K. B. ``The Inverse Hyperbolic Functions.'' Ch. 31 in An Atlas of Functions. Washington, DC: Hemisphere, pp. 285-293, 1987.
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