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 r560589 = x;
        double r560590 = y;
        double r560591 = r560590 * r560590;
        double r560592 = z;
        double r560593 = r560592 * r560592;
        double r560594 = r560591 - r560593;
        double r560595 = sqrt(r560594);
        double r560596 = r560589 * r560595;
        return r560596;
}