Cannot sample enough valid points. (more)

\[x \cdot \sqrt{y \cdot y - z \cdot z}\]
x \cdot \sqrt{y \cdot y - z \cdot z}
double f(double x, double y, double z) {
        double r672597 = x;
        double r672598 = y;
        double r672599 = r672598 * r672598;
        double r672600 = z;
        double r672601 = r672600 * r672600;
        double r672602 = r672599 - r672601;
        double r672603 = sqrt(r672602);
        double r672604 = r672597 * r672603;
        return r672604;
}