COS

Syntax

COS (Data)

Description

The COS function returns the cosine of Data, where Data represents an angle in radians.

To convert from degrees to radians, multiply by PI( ) / 180. The PI function returns the value of PI.

Example

The following examples employ the COS built-in function:

• COS(PI( ) / 3) returns 0.5 (cosine of PI / 3 radians).

• COS(PI( ) / 2) returns 0 (cosine of PI / 2 radians).

• COS(45 * PI( ) / 180) returns 0.7071067812 (cosine of 45 degrees).