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 r28550628 = x;
        double r28550629 = y;
        double r28550630 = r28550629 * r28550629;
        double r28550631 = z;
        double r28550632 = r28550631 * r28550631;
        double r28550633 = r28550630 - r28550632;
        double r28550634 = sqrt(r28550633);
        double r28550635 = r28550628 * r28550634;
        return r28550635;
}