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 r541297 = x;
        double r541298 = y;
        double r541299 = r541298 * r541298;
        double r541300 = z;
        double r541301 = r541300 * r541300;
        double r541302 = r541299 - r541301;
        double r541303 = sqrt(r541302);
        double r541304 = r541297 * r541303;
        return r541304;
}