Question

How to make cout not use scientific notation in C++

Answer 1

#include <iostream>

int main() {
    float f = 16204000.95;

    std::cout << f << "\n";
    std::cout << std::fixed << f << "\n";

    return 0;
}


 
 
 
 
/*
run:
 
1.6204e+07
16204001.000000

*/

 

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Answer 2

#include <iostream>
#include <iomanip>
#include <locale>

int main() {
    float f = 16204000.95;
    
    std::cout.imbue(std::locale(""));
 
    std::cout << f << "\n";
    std::cout << std::fixed << std::setprecision(2) << f << "\n";
    
    f = 16204000.35;
    std::cout << std::fixed << std::setprecision(2) << f << "\n";

    return 0;
}


 
 
 
 
/*
run:
 
1.6204e+07
16,204,001.00
16,204,000.00

*/

 

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