Mysql Cos Function

MySQL: COS Function

This tutorial explains how to use the MySQL COS function with syntax and examples.


The MySQL COS function returns the cosine of a number.


The syntax for the COS function in MySQL is:

COS( number )

Parameters or Arguments


The value used to calculate the cosine. It is expressed in radians.

Applies To

The COS function can be used in the following versions of MySQL:

  • MySQL 5.7, MySQL 5.6, MySQL 5.5, MySQL 5.1, MySQL 5.0, MySQL 4.1, MySQL 4.0, MySQL 3.23


Let's look at some MySQL COS function examples and explore how to use the COS function in MySQL.

For example:

mysql> SELECT COS(2);
Output: -0.4161468365471424

mysql> SELECT COS(PI());
Output: -1

mysql> SELECT COS(-0.9);
Output: 0.6216099682706644