\frac{4}{\left(\left(3 \cdot \pi\right) \cdot \left(1 - v \cdot v\right)\right) \cdot \sqrt{2 - 6 \cdot \left(v \cdot v\right)}}\sqrt[3]{\frac{\frac{\frac{{4}^{3}}{{3}^{3}}}{{\pi}^{3} \cdot {\left(1 - v \cdot v\right)}^{3}}}{{\left(\sqrt{2 - 6 \cdot \left(v \cdot v\right)}\right)}^{3}}}double f(double v) {
double r136140 = 4.0;
double r136141 = 3.0;
double r136142 = atan2(1.0, 0.0);
double r136143 = r136141 * r136142;
double r136144 = 1.0;
double r136145 = v;
double r136146 = r136145 * r136145;
double r136147 = r136144 - r136146;
double r136148 = r136143 * r136147;
double r136149 = 2.0;
double r136150 = 6.0;
double r136151 = r136150 * r136146;
double r136152 = r136149 - r136151;
double r136153 = sqrt(r136152);
double r136154 = r136148 * r136153;
double r136155 = r136140 / r136154;
return r136155;
}
double f(double v) {
double r136156 = 4.0;
double r136157 = 3.0;
double r136158 = pow(r136156, r136157);
double r136159 = 3.0;
double r136160 = pow(r136159, r136157);
double r136161 = r136158 / r136160;
double r136162 = atan2(1.0, 0.0);
double r136163 = pow(r136162, r136157);
double r136164 = 1.0;
double r136165 = v;
double r136166 = r136165 * r136165;
double r136167 = r136164 - r136166;
double r136168 = pow(r136167, r136157);
double r136169 = r136163 * r136168;
double r136170 = r136161 / r136169;
double r136171 = 2.0;
double r136172 = 6.0;
double r136173 = r136172 * r136166;
double r136174 = r136171 - r136173;
double r136175 = sqrt(r136174);
double r136176 = pow(r136175, r136157);
double r136177 = r136170 / r136176;
double r136178 = cbrt(r136177);
return r136178;
}



Bits error versus v
Results
Initial program 1.0
rmApplied add-cbrt-cube1.0
Applied add-cbrt-cube1.0
Applied add-cbrt-cube1.6
Applied add-cbrt-cube1.6
Applied cbrt-unprod1.0
Applied cbrt-unprod1.0
Applied cbrt-unprod1.0
Applied add-cbrt-cube1.0
Applied cbrt-undiv0.0
Simplified0.0
Final simplification0.0
herbie shell --seed 2019199
(FPCore (v)
:name "Falkner and Boettcher, Equation (22+)"
(/ 4.0 (* (* (* 3.0 PI) (- 1.0 (* v v))) (sqrt (- 2.0 (* 6.0 (* v v)))))))