#include <iostream>
#include <iomanip>
using namespace std;

int main()
{
  double h = 6.62606957E-34; // Planck's constant in J*s
  cout << "h = " << h << endl;
  cout << "Setting precision to 4 digits after the decimal" << endl;
  cout << setprecision(4);
  cout << "h = " << h << endl;
  cout << "Print h (right-aligned) in a field 12 spaces long" << endl;
  cout << "h = " << setw(12) << h << endl;
  cout << "Note: setprecision() affects future numbers sent to cout" << endl;
  cout << " but setw() only affects the very next thing sent to cout" << endl;
}