\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 r106730 = a;
double r106731 = b;
double r106732 = r106730 + r106731;
double r106733 = c;
double r106734 = r106732 + r106733;
double r106735 = 2.0;
double r106736 = r106734 / r106735;
double r106737 = r106736 - r106730;
double r106738 = r106736 * r106737;
double r106739 = r106736 - r106731;
double r106740 = r106738 * r106739;
double r106741 = r106736 - r106733;
double r106742 = r106740 * r106741;
double r106743 = sqrt(r106742);
return r106743;
}