Returns the cosine of an angle.
Cos(number)
The number argument can be any valid numeric expression that expresses an angle in radians.
The Cos function 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 lies in the range -1 to 1.
To convert degrees to radians, multiply degrees by p/180. To convert radians to degrees, multiply radians by 180/p.
Atn Function, Derived Math Functions, Sin Function, Tan Function.
This example uses the Cos function to return the cosine of an angle.
MyAngle = 1.3 ' Define angle in radians.= 1 / Cos(MyAngle) ' Calculate secant.