\sqrt{\left(\left(\frac{\left(a + b\right) + c}{2} \cdot \left(\frac{\left(a + b\right) + c}{2} - a\right)\right) \cdot \left(\frac{\left(a + b\right) + c}{2} - b\right)\right) \cdot \left(\frac{\left(a + b\right) + c}{2} - c\right)}double f(double a, double b, double c) {
double r93849 = a;
double r93850 = b;
double r93851 = r93849 + r93850;
double r93852 = c;
double r93853 = r93851 + r93852;
double r93854 = 2.0;
double r93855 = r93853 / r93854;
double r93856 = r93855 - r93849;
double r93857 = r93855 * r93856;
double r93858 = r93855 - r93850;
double r93859 = r93857 * r93858;
double r93860 = r93855 - r93852;
double r93861 = r93859 * r93860;
double r93862 = sqrt(r93861);
return r93862;
}