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 r678467 = x;
        double r678468 = y;
        double r678469 = r678468 * r678468;
        double r678470 = z;
        double r678471 = r678470 * r678470;
        double r678472 = r678469 - r678471;
        double r678473 = sqrt(r678472);
        double r678474 = r678467 * r678473;
        return r678474;
}