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 r708733 = x;
        double r708734 = y;
        double r708735 = r708734 * r708734;
        double r708736 = z;
        double r708737 = r708736 * r708736;
        double r708738 = r708735 - r708737;
        double r708739 = sqrt(r708738);
        double r708740 = r708733 * r708739;
        return r708740;
}