setprecision function in c++ code example
Example 1: set precision in c++
#include <iostream>
#include <iomanip>
int main () {
double f =3.14159;
std::cout << std::setprecision(5) << f << '\n';
std::cout << std::setprecision(9) << f << '\n';
std::cout << std::fixed;
std::cout << std::setprecision(5) << f << '\n';
std::cout << std::setprecision(9) << f << '\n';
return 0;
}
Example 2: setprecision in c++
#include<iomanip>
#include <iostream>
using namespace std;
int main()
{
int num = 45;
cout << "it is: " << fixed << setprecision(2) << num << " the end"<< endl;
return 0;
}
Example 3: set precision with fixed c++
int x = 109887;
cout << fixed << setprecision(3) << x;