/text/sbasic/shared/03080102.xhp Sun Microsystems, Inc. converted from old format - fpe

Cos function Cos Function [Runtime] Calculates the cosine of an angle. The angle is specified in radians. The result lies between -1 and 1.

Using the angle Alpha, the Cos-Function calculates the ratio of the length of the side that is adjacent to the angle, divided by the length of the hypotenuse in a right-angled triangle. Cos(Alpha) = Adjacent/Hypotenuse Syntax: Cos (Number) Return value: Double Parameters: Number: Numeric expression that specifies an angle in radians that you want to calculate the cosine for. To convert degrees to radians, multiply degrees by pi/180. To convert radians to degrees, multiply radians by 180/pi. degree=(radian*180)/pi radian=(degree*pi)/180 Pi is here the fixed circle constant with the rounded value 3.14159... Example: REM The following example allows for a right-angled triangle the input of REM secant and angle (in degrees) and calculates the length of the hypotenuse: Sub ExampleCosinus REM rounded Pi = 3.14159 Dim d1 as Double, dAngle as Double d1 = InputBox$ (""Enter the length of the adjacent side: ","Adjacent") dAngle = InputBox$ ("Enter the angle Alpha (in degrees): ","Alpha") Print "The length of the hypothenuse is"; (d1 / cos (dAngle * Pi / 180)) End Sub