\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 r60600 = a;
double r60601 = b;
double r60602 = r60600 + r60601;
double r60603 = c;
double r60604 = r60602 + r60603;
double r60605 = 2.0;
double r60606 = r60604 / r60605;
double r60607 = r60606 - r60600;
double r60608 = r60606 * r60607;
double r60609 = r60606 - r60601;
double r60610 = r60608 * r60609;
double r60611 = r60606 - r60603;
double r60612 = r60610 * r60611;
double r60613 = sqrt(r60612);
return r60613;
}