x \cdot \sqrt{y \cdot y - z \cdot z}double f(double x, double y, double z) {
double r29215633 = x;
double r29215634 = y;
double r29215635 = r29215634 * r29215634;
double r29215636 = z;
double r29215637 = r29215636 * r29215636;
double r29215638 = r29215635 - r29215637;
double r29215639 = sqrt(r29215638);
double r29215640 = r29215633 * r29215639;
return r29215640;
}