#include <iostream.h> // The C++ input and output definitions.
#include <iomanip.h> // The C++ input and output manipulator definitions.

void main(void)
{

  cout << "pi = " << setprecision(2) << 3.141593 << endl;

  cout << "10 pi = " << 31.41593 << endl;
  cout << "100 pi = " << 314.1593 << endl;
  cout << "1000 pi = " << 3141.593 << endl;
  cout << "10000 pi = " << 31415.93 << endl;
  cout << "100000 pi = " << 314159.3 << endl;
  cout << "1000000 pi = " << 3141593. << endl;
  cout << "10000000 pi = " << 31415930. << endl;


  cout << "pi = " << setiosflags(ios::fixed) << 3.141593 << endl;

  cout << "10 pi = " << 31.41593 << endl;
  cout << "100 pi = " << 314.1593 << endl;
  cout << "1000 pi = " << 3141.593 << endl;
  cout << "10000 pi = " << 31415.93 << endl;
  cout << "100000 pi = " << 314159.3 << endl;
  cout << "1000000 pi = " << 3141593. << endl;
  cout << "10000000 pi = " << 31415930. << endl;
}