# How to Use IMCOSH function in Google Sheets in 2020?

IMCOSH functionThe IMCOSH function returns the hyperbolic cosine of the given complex number. For example, a given complex number “x+yi” returns “cosh(x+yi).”

Parts of an IMCOSH formula

IMCOSH(number)

Part
Description
Notes

number
The complex number for which you want the hyperbolic cosine.
This can be either the result of the COMPLEX function, a real number interpreted as a complex number with imaginary parts equal to 0, or a string in the format “x+yi” where x and y are numeric.

Sample formulas

IMCOSH(COMPLEX(4, 6))

IMCOSH(4)

IMCOSH(“2+3i”)

Notes

The IMCOSH function returns an error if the given number isn’t a valid complex number.

Examples

A
B

1
Formula
Result

2
=IMCOSH(COMPLEX(4, 1))
14.7547011704838+22.963673499193i

3
=IMCOSH(3.5)
16.5728246710573

4
=IMCOSH(“3+2i”)
-4.18962569096881+9.10922789375534i

Related function

COMPLEX: The COMPLEX function creates a complex number, given real and imaginary coefficients.

IMCOS: The IMCOS function returns the cosine of the given complex number.

IMSINH: The IMSINH function returns the hyperbolic sine of the given complex number.