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 r23968589 = x;
        double r23968590 = y;
        double r23968591 = r23968590 * r23968590;
        double r23968592 = z;
        double r23968593 = r23968592 * r23968592;
        double r23968594 = r23968591 - r23968593;
        double r23968595 = sqrt(r23968594);
        double r23968596 = r23968589 * r23968595;
        return r23968596;
}