#include <iostream>
#include <iomanip>
#include <math.h>

int main(int argc, char const *argv[])
{
    double hnu = 4.138e-10; // ergs
    double A = 2.20e-6;
    double alpha = 7.10e3;
    double EinK =  29168;

    for (double logT = -10; logT <= 10; logT = logT + 0.0625) {
        double T = pow(10,logT);
        double cooling = hnu * A * pow(T,-0.5) * exp(-1*EinK/T);

        std::cout << std::setprecision(4) << std::fixed
            << std::scientific 
            << std::setw(10) << T << '\t'
            << std::setw(10) << cooling << '\n';
    }


    return 0;
}