text: #include "DivOp.h"
  #include <iostream>
  
  using namespace std;
  
  string DivOp::GetName() const {return "/";}
  // TODO: check zero-div Exception
  double DivOp::Apply(const vector<double> &args) const {return args[1] / args[0];}
  unsigned int DivOp::GetArity() const {return 2;}
  DivOp::~DivOp() {cout << "~DivOp" << '\n';}