\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 r8047 = a;
double r8048 = b;
double r8049 = r8047 + r8048;
double r8050 = c;
double r8051 = r8049 + r8050;
double r8052 = 2.0;
double r8053 = r8051 / r8052;
double r8054 = r8053 - r8047;
double r8055 = r8053 * r8054;
double r8056 = r8053 - r8048;
double r8057 = r8055 * r8056;
double r8058 = r8053 - r8050;
double r8059 = r8057 * r8058;
double r8060 = sqrt(r8059);
return r8060;
}