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 r554811 = x;
        double r554812 = y;
        double r554813 = r554812 * r554812;
        double r554814 = z;
        double r554815 = r554814 * r554814;
        double r554816 = r554813 - r554815;
        double r554817 = sqrt(r554816);
        double r554818 = r554811 * r554817;
        return r554818;
}