#include <iostream>
#include <iomanip>

const float x = 123.456123456789012345;

main () {
   
   cout << "The number is ";
   cout << x << endl;;

   cout << "With a setw of 2,8,10 " << endl;
   cout   << " 2 " << setw(2)  <<  x << endl;
   cout   << " 8 " << setw(8)  <<  x << endl;
   cout   << "10 " << setw(10) <<  x << endl;

   cout << endl;

   cout << "Setprecision(2) and with a setw of 2,4 " << endl;

   cout << setprecision(2);
   cout  << " 2 "  << setw(2) <<   x << endl;
   cout  << " 4 "  <<  setw(10) <<   x << endl;

   cout.setf(ios::fixed, ios::floatfield);
   cout.setf(ios::showpoint);

   cout << endl;
   cout << "Setprecision(2) and with a setw of 2,4, after showpoint " << endl;
   cout  << " 2 "  << setw(2) <<   x << endl;
   cout  << " 4 "  <<  setw(10) <<   x << endl;

   cout << endl << "Setprecision(5) no setw" << endl;
   cout << setprecision(5);
   cout  <<   x << endl;


   cout << endl << "Setprecision(10) no  setw " << endl;
   cout << setprecision(10);
   cout  <<   x << endl;
}