//#(compile) c++; compiler:g132; options:-O3 -std=c++23; libs:-
// https://godbolt.org/z/qx8h7a4j9
#include <iostream>
#include <iomanip> // fixed, setprecision
using std::cout; // abbreviated cout
int main() {
cout << std::setprecision(2) << std::fixed; // two decimal places
cout << "1/4: " << 0.25 << "\n"; // comma notation for double
// output: 1/4: 0.25
cout << "2/4: " << 0.5 << "\n";
// Output: 2/4: 0.50
cout << "3/4: " << 0.75 << "\n";
// Output: 3/4: 0.75
cout << "4/4: " << 1 << " or " << 1.0 << "\n"; // (ERR) recognizes 1 as int
// Output 4/4: 1 or 1.00
cout << "1e0: " << 1e0 << "\n"; // scientific notation
// output: 1e0: 1.00
cout << "0x10.1p0: " << 0x10.1p0 << "\n"; // hexadecimal notation
// output: 0x10.1p0: 16.06
}