Oracle COS() Function

The Oracle (PL/SQL) COS() function returns trigonometric cosine of an angle (angle should be in radians).

Syntax

COS(x)

Parameters

`x`	`Required.` Specify the angle in radian.

Return Value

Returns the trigonometric cosine of an angle.

Example 1:

The example below shows the usage of COS() function.

COS(0)
Result: 1

COS(1)
Result: .5403023058681397174009366074429766037354

COS(-1)
Result: .5403023058681397174009366074429766037354

COS(2)
Result: -.41614683654714238699756822950076218977

COS(-2)
Result: -.41614683654714238699756822950076218977

Example 2:

Consider a database table called Sample with the following records:

Data	x
Data 1	-10
Data 2	-5
Data 3	0
Data 4	5
Data 5	10

The statement given below can be used to calculate the trigonometric cosine value of column x.

SELECT Sample.*, 
COS(x) AS COS_Value 
FROM Sample;

This will produce the result as shown below:

Data	x	COS_Value
Data 1	-10	-.83907152907645245225886394782406483451
Data 2	-5	.2836621854632262644666391715135573083265
Data 3	0	1
Data 4	5	.2836621854632262644666391715135573083265
Data 5	10	-.83907152907645245225886394782406483451

❮ Oracle Functions