Definition:Inverse Hyperbolic Function/Also known as

Inverse Hyperbolic Function: Also known as
The inverse hyperbolic functions are also known as the area hyperbolic functions, as they can be used, among other things, for evaluating areas of regions bounded by hyperbolas.

On, the term area hyperbolic function is specifically reserved for the principal branch of those inverse hyperbolic functions which are multifunctions.

Some sources refer to them as hyperbolic arc functions, but this is strictly a misnomer, as there is nothing arc related about an inverse hyperbolic function.