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 r475888 = x;
        double r475889 = y;
        double r475890 = r475889 * r475889;
        double r475891 = z;
        double r475892 = r475891 * r475891;
        double r475893 = r475890 - r475892;
        double r475894 = sqrt(r475893);
        double r475895 = r475888 * r475894;
        return r475895;
}