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 r581207 = x;
        double r581208 = y;
        double r581209 = r581208 * r581208;
        double r581210 = z;
        double r581211 = r581210 * r581210;
        double r581212 = r581209 - r581211;
        double r581213 = sqrt(r581212);
        double r581214 = r581207 * r581213;
        return r581214;
}