\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 r116633 = a;
double r116634 = b;
double r116635 = r116633 + r116634;
double r116636 = c;
double r116637 = r116635 + r116636;
double r116638 = 2.0;
double r116639 = r116637 / r116638;
double r116640 = r116639 - r116633;
double r116641 = r116639 * r116640;
double r116642 = r116639 - r116634;
double r116643 = r116641 * r116642;
double r116644 = r116639 - r116636;
double r116645 = r116643 * r116644;
double r116646 = sqrt(r116645);
return r116646;
}