Demo of integer math vs. double math

truncation.cpp

#include <iostream>
using namespace std;
int main(){

  int half = 3/2;
	cout << half << endl; //Prints 1 because int's throw away the decimal

	double intMath= 3 / 2;
	cout<<intMath<<endl; //Prints 1, not what we expected

	double doubleMath = 3 / 2.0; //Notice that we wrote 2.0, not 2
	cout <<doubleMath <<endl; // Prints 1.5

	return 0;

}