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 r400062 = x;
        double r400063 = y;
        double r400064 = r400063 * r400063;
        double r400065 = z;
        double r400066 = r400065 * r400065;
        double r400067 = r400064 - r400066;
        double r400068 = sqrt(r400067);
        double r400069 = r400062 * r400068;
        return r400069;
}