# IMCOSH

Formulas / IMCOSH
Return the cosine of a complex number.
`IMCOSH(inumber)`
• inumber - required, a complex number in the text format x+yi or x+yj

## Examples

• `=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.

## Summary

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.

What is the IMCOSH function?
The IMCOSH function is a mathematical function that calculates the hyperbolic cosine of a complex number.
What type of argument is required for the IMCOSH function?
The IMCOSH function requires a complex number argument.
What format should the argument be in?
The complex number argument should not be in the x+yi or x+yj text format.
What is the inumber argument?
The inumber argument is also a complex number.
What happens if the inumber argument is a logical value?
The IMCOSH function will return an error value if the inumber argument is a logical value.