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 r685205 = x;
        double r685206 = y;
        double r685207 = r685206 * r685206;
        double r685208 = z;
        double r685209 = r685208 * r685208;
        double r685210 = r685207 - r685209;
        double r685211 = sqrt(r685210);
        double r685212 = r685205 * r685211;
        return r685212;
}