@IBAction func calculerButtonAction(_ sender: Any) {

        let coteOneValue :Float = (self.coteOneTF.text! as NSString).floatValue
        let coteTwoValue :Float = (self.coteTwoTF.text! as NSString).floatValue
        let coteThreeValue:Float = (self.coteThreeTF.text! as NSString).floatValue

         let valueOne :Float = 1/coteOneValue
         let valuetwo :Float = 1/coteTwoValue
         let valueThree :Float = 1/coteThreeValue

        let miseValue :Float  = valueOne + valuetwo + valueThree
        print(miseValue)
        let miseConstantValue : Float = 1.0
        if miseValue <= miseConstantValue {

            let alert = UIAlertController(title: "Information", message: "C' est un surebet", preferredStyle: UIAlertControllerStyle.alert)
            alert.addAction(UIAlertAction(title: "OK", style: UIAlertActionStyle.default, handler: nil))
            self.present(alert, animated: true, completion: nil)
        }
        else {

            let alert = UIAlertController(title: "Information", message: "C' est pas un surebet", preferredStyle: UIAlertControllerStyle.alert)
            alert.addAction(UIAlertAction(title: "OK", style: UIAlertActionStyle.default, handler: nil))
            self.present(alert, animated: true, completion: nil)
        }
    }