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 r522565 = x;
        double r522566 = y;
        double r522567 = r522566 * r522566;
        double r522568 = z;
        double r522569 = r522568 * r522568;
        double r522570 = r522567 - r522569;
        double r522571 = sqrt(r522570);
        double r522572 = r522565 * r522571;
        return r522572;
}