Return the cosine of a complex number.

`IMCOSH(inumber)`

- inumber - required, a complex number in the text format x+yi or x+yj

`=IMCOSH( 0.5 )`

The IMCOSH function computes the complex hyperbolic cosine of a complex number, and the result is 1.12762596520638.

`=IMCOSH( A3 )`

The IMCOSH function can also be used to calculate the complex hyperbolic cosine of a cell reference, and the result is 2-i.

The IMCOSH function is a mathematical tool used to calculate the hyperbolic cosine of a given complex number. It requires a complex number as its argument to return the result.

- The IMCOSH function syntax is IMCOSH(number) and the inumber argument is required and must be a complex number.
- The IMCOSH function returns an error value if the number is a logical value.
- The IMCOSH function is useful for calculating the hyperbolic cosine of a complex number.

The IMCOSH function is a mathematical function that calculates the hyperbolic cosine of a complex number.

The IMCOSH function requires a complex number argument.

The complex number argument should not be in the x+yi or x+yj text format.

The inumber argument is also a complex number.

The IMCOSH function will return an error value if the inumber argument is a logical value.

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