             }
         }
         
-        print("should change")
-        
         return true
     }
     
     func textViewDidChange(_ textView:UITextView)
     {
         textToPolynomial()
-        
-        print("did change")
     }
 }

        }
        
        let numberDouble:Double = number as Double
        controller.polynomial?.coefficientDividend = numberDouble
        controller.polynomial?.coefficientDivisor = 1
    }

        let dividend:Double = polynomial.coefficientDividend
        let divisor:Double = polynomial.coefficientDivisor
        let coefficient:Double = dividend / divisor
        let coefficentNumber:NSNumber = NSNumber(value:coefficient)
        
        guard
        
