COSH

Description

Returns the hyperbolic cosine of x.

Syntax

COSH(<x>)

Parameters

Parameter	Description
<x>	The value for which the hyperbolic cosine is to be calculated

Return Value

The hyperbolic cosine of parameter x

Special Cases

• When x is NaN, returns NaN
• When x is positive infinity, returns Infinity
• When x is negative infinity, returns Infinity
• When x is NULL, returns NULL

Examples

select cosh(0);

+-------------------------+
| cosh(cast(0 as DOUBLE)) |
+-------------------------+
|                     1.0 |
+-------------------------+

select cosh(1);

+-------------------------+
| cosh(cast(1 as DOUBLE)) |
+-------------------------+
|       1.543080634815244 |
+-------------------------+

select cosh(-1);

+--------------------------+
| cosh(cast(-1 as DOUBLE)) |
+--------------------------+
|        1.543080634815244 |
+--------------------------+

select cosh(cast('nan' as double));

+-----------------------------+
| cosh(cast('nan' AS DOUBLE)) |
+-----------------------------+
| NaN                         |
+-----------------------------+

select cosh(cast('inf' as double));

+-----------------------------+
| cosh(cast('inf' AS DOUBLE)) |
+-----------------------------+
| Infinity                    |
+-----------------------------+

select cosh(cast('-inf' as double));

+------------------------------+
| cosh(cast('-inf' AS DOUBLE)) |
+------------------------------+
| Infinity                     |
+------------------------------+