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 r439949 = x;
        double r439950 = y;
        double r439951 = r439950 * r439950;
        double r439952 = z;
        double r439953 = r439952 * r439952;
        double r439954 = r439951 - r439953;
        double r439955 = sqrt(r439954);
        double r439956 = r439949 * r439955;
        return r439956;
}