\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 r113017 = a;
double r113018 = b;
double r113019 = r113017 + r113018;
double r113020 = c;
double r113021 = r113019 + r113020;
double r113022 = 2.0;
double r113023 = r113021 / r113022;
double r113024 = r113023 - r113017;
double r113025 = r113023 * r113024;
double r113026 = r113023 - r113018;
double r113027 = r113025 * r113026;
double r113028 = r113023 - r113020;
double r113029 = r113027 * r113028;
double r113030 = sqrt(r113029);
return r113030;
}