\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 r60239 = a;
double r60240 = b;
double r60241 = r60239 + r60240;
double r60242 = c;
double r60243 = r60241 + r60242;
double r60244 = 2.0;
double r60245 = r60243 / r60244;
double r60246 = r60245 - r60239;
double r60247 = r60245 * r60246;
double r60248 = r60245 - r60240;
double r60249 = r60247 * r60248;
double r60250 = r60245 - r60242;
double r60251 = r60249 * r60250;
double r60252 = sqrt(r60251);
return r60252;
}