Cos Function

Definition:
Returns the cosine of an angle.

Syntax:
Cos (angle)

Syntax Description

angle Any valid numeric expression (expressed in radians).

Details:
The Cos function determines the cosine of an angle. That means it takes an angle and returns the ratio of two sides of a right triangle. The ratio is the length of the side adjacent to the angle, divided by the length of the hypotenuse. The result is in the range of -1 to 1.

Note: If the angle is expressed in degrees, it must first be converted to radians using the following formula: Degrees * Pi/180. Pi is approximately 3.141593.