---

{ “title”: “COS”, “language”: “en” }

Description

Calculate the cosine of the parameter

Syntax

COS(<a>)

Parameters

Parameter	Description
<a>	floating point number, the radian value of the parameter to calculate

Return Value

The cosine of the parameter <a>, expressed in radians.

Examples

select cos(1);

+---------------------+
| cos(1.0)            |
+---------------------+
| 0.54030230586813977 |
+---------------------+

select cos(0);

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

select cos(Pi());

+-----------+
| cos(pi()) |
+-----------+
|        -1 |
+-----------+