#include <iostream>
#include <iomanip>
#include <math.h>
using namespace std;
int main()
{
double root2 = sqrt( 2.0 );
int places;
cout << setiosflags( ios::fixed)
<< "Square root of 2 with precisions 0-9.\n"
<< "Precision set by the "
<< "precision member function:" << endl;
for ( places = 0; places <= 9; places++ ) {
cout.precision( places );
cout << root2 << '\n';
}
cout << "\nPrecision set by the "
<< "setprecision manipulator:\n";
for ( places = 0; places <= 9; places++ )
cout << setprecision( places ) << root2 << '\n';
return 0;
}
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