acosh() [5/10]

double stan::math::acosh ( double  x )

inline

Return the inverse hyperbolic cosine of the specified value.

Returns nan for nan argument.

Parameters

[in]

x

Argument.

Returns

Inverse hyperbolic cosine of the argument.

Exceptions

std::domain_error

If argument is less than 1.

Definition at line 26 of file acosh.hpp.