\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 r112762 = a;
double r112763 = b;
double r112764 = r112762 + r112763;
double r112765 = c;
double r112766 = r112764 + r112765;
double r112767 = 2.0;
double r112768 = r112766 / r112767;
double r112769 = r112768 - r112762;
double r112770 = r112768 * r112769;
double r112771 = r112768 - r112763;
double r112772 = r112770 * r112771;
double r112773 = r112768 - r112765;
double r112774 = r112772 * r112773;
double r112775 = sqrt(r112774);
return r112775;
}