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 r28445117 = x;
        double r28445118 = y;
        double r28445119 = r28445118 * r28445118;
        double r28445120 = z;
        double r28445121 = r28445120 * r28445120;
        double r28445122 = r28445119 - r28445121;
        double r28445123 = sqrt(r28445122);
        double r28445124 = r28445117 * r28445123;
        return r28445124;
}