\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 r110621 = a;
double r110622 = b;
double r110623 = r110621 + r110622;
double r110624 = c;
double r110625 = r110623 + r110624;
double r110626 = 2.0;
double r110627 = r110625 / r110626;
double r110628 = r110627 - r110621;
double r110629 = r110627 * r110628;
double r110630 = r110627 - r110622;
double r110631 = r110629 * r110630;
double r110632 = r110627 - r110624;
double r110633 = r110631 * r110632;
double r110634 = sqrt(r110633);
return r110634;
}