Make Math Work
Cosine
Usage:Cosine Angle
 Cos Angle

The Cosine command returns the mathematical cosine of the entered Angle. Angle is expressed in radians.

In a right triangle the cosine is the ratio of adjacent leg/hypotenuse .

PI is available as a constant for example, the cosine of PI/4 can be computed by Cosine PI/4.

To compute the sine of an angle measured in degrees use the function DegToRad which will convert degrees into radians. For example, try Cosine DegToRad(90)

Examples:
Cosine_1.5708 >d4 returns 1.0000.
Cosine_PI/2 returns 1.
Cosine_acos(.7) returns .7.
 Try It   
 Enter an angle in radians: