rotate a stick continuously in as3

Code :-
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stage.addEventListener(Event.ENTER_FRAME,rotate);

function rotate (e:Event){
       var theX:int = 5//mouseX - arrow.x;
       var theY:int = 13//(mouseY - arrow.y) * -1;
       var angle = Math.atan(theY/theX)/(Math.PI/90);
       trace(angle);

     
arrow.rotation -= (angle*-1) + 90
   
}

Out put :-
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