Calculates the arcsine of a number.
ASin ( expression )
expression | Any value between -1 and 1 (inclusive). |
ASin(x) is mathematically defined only for -1 < x < 1, so ASin() tends to return -1.#IND for other values of x.
#include <MsgBoxConstants.au3>
Example()
Func Example()
; Assign a Local variable the arcSine of 0.5.
Local $fArcSin1 = ASin(0.5)
; Display the result.
MsgBox($MB_SYSTEMMODAL, "", $fArcSin1 & " rad.")
; Assign a Local constant variable the approximate PI number.
Local Const $PI = 3.141592653589793
; Assign a Local variable the formula to switch from radian to degree (equals to one radian in degree).
Local $fRadToDeg = 180 / $PI
; Assign a Local variable a number in degree.
Local $fArcSin2 = $fRadToDeg * ASin(1)
; Display the result.
MsgBox($MB_SYSTEMMODAL, "", $fArcSin2 & " deg.")
EndFunc ;==>Example