*sigma_result = sigma;
}
-static void compute_new_rating(double mu1, double sigma1, double mu2, double sigma2, int score1, int score2, double *mu, double *sigma, double *probability)
+void compute_new_rating(double mu1, double sigma1, double mu2, double sigma2, int score1, int score2, double *mu, double *sigma, double *probability)
{
vector<pair<double, double> > curve;