Computes the inverse hyperbolic cosine of a specified value (x), where x is in radians.

If x is not complex and is less than 1, the result is not a number (NaN).

## x

An input to this operation.

This input supports scalar numbers, arrays or clusters of numbers, and arrays of clusters of numbers.

Data Type Changes on FPGA

## arccosh

Result of the operation.

This output assumes the same numeric representation as x.