\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 r136499 = a;
double r136500 = b;
double r136501 = r136499 + r136500;
double r136502 = c;
double r136503 = r136501 + r136502;
double r136504 = 2.0;
double r136505 = r136503 / r136504;
double r136506 = r136505 - r136499;
double r136507 = r136505 * r136506;
double r136508 = r136505 - r136500;
double r136509 = r136507 * r136508;
double r136510 = r136505 - r136502;
double r136511 = r136509 * r136510;
double r136512 = sqrt(r136511);
return r136512;
}