C++ setprecision(n) only rounds up to n - 1 number after decimal point code example
Example 1: how to print a decimal number upto 6 places of decimal in c++
#include <iostream>
#include <iomanip>
int main()
{
double d = 122.345;
std::cout << std::fixed;
std::cout << std::setprecision(2);
std::cout << d;
}
Example 2: how to specify how many decimal to print out with std::cout
#include <iostream>
#include <iomanip>
int main()
{
double d = 122.345;
std::cout << std::fixed << std::setprecision(2) << d;
}