\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 r134079 = a;
double r134080 = b;
double r134081 = r134079 + r134080;
double r134082 = c;
double r134083 = r134081 + r134082;
double r134084 = 2.0;
double r134085 = r134083 / r134084;
double r134086 = r134085 - r134079;
double r134087 = r134085 * r134086;
double r134088 = r134085 - r134080;
double r134089 = r134087 * r134088;
double r134090 = r134085 - r134082;
double r134091 = r134089 * r134090;
double r134092 = sqrt(r134091);
return r134092;
}