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 r1366392 = x;
        double r1366393 = y;
        double r1366394 = r1366393 * r1366393;
        double r1366395 = z;
        double r1366396 = r1366395 * r1366395;
        double r1366397 = r1366394 - r1366396;
        double r1366398 = sqrt(r1366397);
        double r1366399 = r1366392 * r1366398;
        return r1366399;
}