\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 r146794 = a;
double r146795 = b;
double r146796 = r146794 + r146795;
double r146797 = c;
double r146798 = r146796 + r146797;
double r146799 = 2.0;
double r146800 = r146798 / r146799;
double r146801 = r146800 - r146794;
double r146802 = r146800 * r146801;
double r146803 = r146800 - r146795;
double r146804 = r146802 * r146803;
double r146805 = r146800 - r146797;
double r146806 = r146804 * r146805;
double r146807 = sqrt(r146806);
return r146807;
}