COS function

COS is a trigonometric function that returns the cosine of a number. The return value is in radians and is between -1 and 1, inclusive.

Syntax

COS(double_precision)

Arguments

Return type

The COS function returns a DOUBLE PRECISION number.

Examples

To return the cosine of 0, use the following example.

SELECT COS(0);

+-----+
| cos |
+-----+
|   1 |
+-----+

To return the cosine of pi, use the following example.

SELECT COS(PI());

+-----+
| cos |
+-----+
|  -1 |
+-----+