The Inverse Hyperbolic Cosine Function: acosh
Keywords: the inverse hyperbolic cosine function: acosh syntax description x y cppad_use_cplusplus_2011 true false example

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The Inverse Hyperbolic Cosine Function: acosh
Syntax
`y = acosh(x)`
Description
The inverse hyperbolic cosine function is defined by `x == cosh(y)` .
x, y
See the possible types for a unary standard math function.
CPPAD_USE_CPLUSPLUS_2011
true
If this preprocessor symbol is true (`1`), and `x` is an AD type, this is an atomic operation .
false
If this preprocessor symbol is false (`0`), CppAD uses the representation acosh ( x ) = log (x + x 2 - 1 ) to compute this function.
Example
The file acosh.cpp contains an example and test of this function. It returns true if it succeeds and false otherwise.

Input File: cppad/local/acosh.hpp