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 r1379854 = x;
        double r1379855 = y;
        double r1379856 = r1379855 * r1379855;
        double r1379857 = z;
        double r1379858 = r1379857 * r1379857;
        double r1379859 = r1379856 - r1379858;
        double r1379860 = sqrt(r1379859);
        double r1379861 = r1379854 * r1379860;
        return r1379861;
}