MySQL COS() Function

In MySQL, the COS() function returns the cosine of the specified number.

`COS()` Syntax

Here is the syntax of MySQL COS() function:

COS(number)

Parameters

number: Required. An angle, in radians.

Return value

In MySQL, the COS() function returns the cosine of the specified number.

If the parameter number is NULL, the COS() function will return NULL.

`COS()` Examples

SELECT
    COS(2.5),
    COS(0.2),
    COS(-0.5),
    COS(-0.2),
    COS(0),
    COS(PI()),
    COS(NULL)\G

output

*************************** 1\. row ***************************
 COS(2.5): -0.8011436155469337
 COS(0.2): 0.9800665778412416
COS(-0.5): 0.8775825618903728
COS(-0.2): 0.9800665778412416
   COS(0): 1
COS(PI()): -1
COS(NULL): NULL

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