# COSH function: Description, Usage, Syntax, Examples and Explanation

## What is COSH function in Excel?

COSH function is one of the Maths and Trig functions in Microsoft Excel that returns the hyperbolic cosine of a number.

## Syntax of COSH function

COSH(number)

The COSH function syntax has the following arguments:

**Number:**Any real number for which you want to find the hyperbolic cosine.

## COSH formula explanation

The formula for the hyperbolic cosine is:

## Example of COSH function

Steps to follow:

1. Open a new Excel worksheet.

2. Copy data in the following table below and paste it in cell A1

Note: For formulas to show results, select them, press F2 key on your keyboard and then press Enter.

You can adjust the column widths to see all the data, if need be.

Formula |
Description |
Result |

=COSH(4) | Hyperbolic cosine of 4 | 27.308233 |

=COSH(EXP(1)) | Hyperbolic cosine of the base of the natural logarithm. | 7.6101251 |