x \cdot \sqrt{y \cdot y - z \cdot z}double f(double x, double y, double z) {
double r29019411 = x;
double r29019412 = y;
double r29019413 = r29019412 * r29019412;
double r29019414 = z;
double r29019415 = r29019414 * r29019414;
double r29019416 = r29019413 - r29019415;
double r29019417 = sqrt(r29019416);
double r29019418 = r29019411 * r29019417;
return r29019418;
}