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 r32588401 = x;
        double r32588402 = y;
        double r32588403 = r32588402 * r32588402;
        double r32588404 = z;
        double r32588405 = r32588404 * r32588404;
        double r32588406 = r32588403 - r32588405;
        double r32588407 = sqrt(r32588406);
        double r32588408 = r32588401 * r32588407;
        return r32588408;
}