std::acosh

 

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Defined in header <cmath>
float       acosh( float arg );		(since C++11)
double      acosh( double arg );		(since C++11)
long double acosh( long double arg );		(since C++11)
double      acosh( Integral arg );		(since C++11)

Computes area hyperbolic cosine of arg.

Parameters

arg

-

value of a floating-point or Integral type

Return value

Inverse hyperbolic cosine of arg.

See also

asinh (C++11)	area hyperbolic sine (function)
atanh (C++11)	area hyperbolic tangent (function)
cosh	computes hyperbolic cosine (ch(x)) (function)
acosh(std::complex) (C++11)	computes area hyperbolic cosine of a complex number (function template)
C documentation for acosh

External links

Weisstein, Eric W. "Inverse Hyperbolic Cosine." From MathWorld--A Wolfram Web Resource.