# COSH

The COSH function calculates the hyperbolic cosine of a given angle.

## Syntax

`COSH(angle)`

### Parameters

#### angle

The angle in radians for which the hyperbolic cosine is to be calculated. If the angle is null, the function will return null.

## Examples

```esql
ROW a=1.8
| EVAL cosh=COSH(a)
```

```esql
ROW angle=0.5
| EVAL hyperbolic_cosine = COSH(angle)
```
