acosh

acosh(x)

Compute the inverse hyperbolic cosine of x

Examples

Calculate the inverse hyperbolic cosine of a real number:
```
julia> acosh(1)
0.0
```
This example calculates the inverse hyperbolic cosine of 1.
Handle complex numbers:
```
julia> acosh(1 + im)
0.0 + 1.5707963267948966im
```
The acosh function can handle complex numbers as well. Here, it computes the inverse hyperbolic cosine of 1 + im and returns a complex result.
Calculate acosh for negative real numbers:
```
julia> acosh(-2)
1.3169578969248166 + 3.141592653589793im
```
The acosh function can handle negative real numbers. It computes the inverse hyperbolic cosine of -2 and returns a complex result.

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