Returns the hyperbolic cosine of a complex number.
|inumber||The complex number.|
|* Added in Excel 2013.|
* If "inumber" is a logical value, then #VALUE is returned.
* You can use the IMSINH function to return the hyperbolic sine of a complex number.
* You can use the COMPLEX function to convert real and imaginary coefficients into a complex number.
* For the Microsoft documentation refer to support.office.com
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