#include <iostream>
#include <iomanip>
#include <cmath>
#include <thread>

using namespace std;

double dA50 = 8.0;
double dAto95 = 3.0;
double dAlpha = 1.0;

double getResult(int param) {
    double dRet = 0.0;
    double dTemp = (dA50-param)/dAto95;
    dRet  = dAlpha/(1.0+pow(19.0,dTemp));
    return dRet;
}

int main() {
    cout << std::setprecision(20);

    cout << "Local = " << getResult(1) << endl;
    cout << "Local = " << getResult(1) << endl;

    std::thread nt([](){
        cout << "Thread = " << getResult(1) << endl;
        cout << "Thread = " << getResult(1) << endl;
    });

    nt.join();

    return 0;
}