SQL COS Function

COS returns the cosine in radians of the specified angle.

COS, along with SIN and TAN, is one of the primary trigonometric functions.

Example

#

This example returns the cosine of the specified angle measured in radians.

SELECT COS(0) AS '0 degrees',
       COS(PI()/3) AS '60 degrees',
       COS(PI()) AS '180 degrees'
Result:  1 record
0 degrees 60 degrees 180 degrees
1 .5 -1

Note: PI is a function that returns the value of π (3.14).


Syntax

Syntax of the COS function.

COS(angle)

angle -- a number representing an angle in radians.


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