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 r32239131 = x;
        double r32239132 = y;
        double r32239133 = r32239132 * r32239132;
        double r32239134 = z;
        double r32239135 = r32239134 * r32239134;
        double r32239136 = r32239133 - r32239135;
        double r32239137 = sqrt(r32239136);
        double r32239138 = r32239131 * r32239137;
        return r32239138;
}