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 r677775 = x;
        double r677776 = y;
        double r677777 = r677776 * r677776;
        double r677778 = z;
        double r677779 = r677778 * r677778;
        double r677780 = r677777 - r677779;
        double r677781 = sqrt(r677780);
        double r677782 = r677775 * r677781;
        return r677782;
}