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 r608569 = x;
        double r608570 = y;
        double r608571 = r608570 * r608570;
        double r608572 = z;
        double r608573 = r608572 * r608572;
        double r608574 = r608571 - r608573;
        double r608575 = sqrt(r608574);
        double r608576 = r608569 * r608575;
        return r608576;
}