# Cos Function

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.

## Syntax:

`Abs (Number)`

दोगुना

## पैरामीटर

Number: Numeric expression that specifies an angle in radians that you want to calculate the cosine for.

डिग्री को रेडियन में बदलने के लिए, डिग्री को pi/180 से गुणा करें. रेडियन को डिग्री में बदलने के लिए, रेडियन को 180/pi से गुणा करें.

Pi is here the fixed circle constant with the rounded value 3.14159...

## Error codes:

5 Invalid procedure call

## उदाहरण:

`' The following example allows for a right-angled triangle the input of`

`' 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`