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 r724419 = x;
        double r724420 = y;
        double r724421 = r724420 * r724420;
        double r724422 = z;
        double r724423 = r724422 * r724422;
        double r724424 = r724421 - r724423;
        double r724425 = sqrt(r724424);
        double r724426 = r724419 * r724425;
        return r724426;
}