MySQL - COS() Function

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The COS() function of MySQL calculates the trigonometric cosine value of numbered data.

The trigonometric cosine of an angle is defined as the ratio of the adjacent side of the said angle to the hypotenuse in a right-angled triangle.

This function accepts an integer value (in radians) as a parameter and returns the cosine value.

Syntax

Following is the syntax of MySQL COS() function −

COS(x);

Parameters

This function takes a numeric value representing an angle in radians as a parameter.

Return Value

This function returns the cosine of given angle.

Example

In the following query, we are using the COS() function to calculate the cosine of the value 8 −

SELECT COS(8) As Result;

Output

This will produce the following result −

Result
-0.14550003380861354

Example

You can also pass pi() function as a value to this function as shown below. The value of PI() function is 3.14 −

SELECT COS(PI()) As Result;

Output

The output for the query above is produced as given below −

Result
-1

Example

Following is another example of for COS() function −

SELECT COS(-16) As Result;

Output

This will produce the following result −

Result
-0.9576594803233847

Example

The following query calculates the cosine of the value 0 −

SELECT COS(0) As Result;

Output

The output for the query above is produced as given below −

Result
1