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 r577011 = x;
        double r577012 = y;
        double r577013 = r577012 * r577012;
        double r577014 = z;
        double r577015 = r577014 * r577014;
        double r577016 = r577013 - r577015;
        double r577017 = sqrt(r577016);
        double r577018 = r577011 * r577017;
        return r577018;
}