class PrecisionOp : public Op{
        public:
                int decPlaces; //variable determines how many decimal places the precision will be set to
                double number;

                PrecisionOp(int decPlaces, double value) : decPlaces(decPlaces), Op(value){}

                string stringify(){//functions turns value into a string then returns it
                        stringstream sstream;
                        sstream << fixed << setprecision(decPlaces) << Op::value;
                        return sstream.str();   //might need to do to_string
                }
};