Function Reference


Cos

Calculates the cosine of a number.

Cos ( expression )

Parameters

expression Value in radians.

Return Value

Returns the trigonometric cosine of the number.

Remarks

1° = pi / 180 radians.

Related

ACos(), ASin(), ATan(), Sin(), Tan()

Example

#include <MsgBoxConstants.au3>

Example()

Func Example()
    ; Assign a Local constant variable the approximate PI number.
    Local Const $PI = 3.141592653589793

    ; Assign a Local variable the cosine of PI / 4 (equals to Sqrt(2) / 2).
    Local $fCos1 = Cos($PI / 4)

    ; Display the result.
    MsgBox($MB_SYSTEMMODAL, "", $fCos1)

    ; Assign a Local variable the formula to switch from radian to degree (equals to one degree in radian).
    Local $fDegToRad = $PI / 180

    ; Assign a Local variable the cosine of 90 degrees (firstly converted to radians).
    Local $fCos2 = Cos(90 * $fDegToRad)

    ; Display the result.
    MsgBox($MB_SYSTEMMODAL, "", $fCos2)
EndFunc   ;==>Example