\sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) - \sqrt{g \cdot g - h \cdot h}\right)}\begin{array}{l}
\mathbf{if}\;g \le -2.5831109636145956 \cdot 10^{-186}:\\
\;\;\;\;\frac{\sqrt[3]{1 \cdot \left(\sqrt{g \cdot g - h \cdot h} - g\right)}}{\sqrt[3]{2 \cdot a}} + \sqrt[3]{\frac{1}{2 \cdot a}} \cdot \sqrt[3]{\left(-g\right) - \left(-g\right)}\\
\mathbf{else}:\\
\;\;\;\;\sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\frac{1}{2 \cdot a}} \cdot \sqrt[3]{\left(-g\right) - g}\\
\end{array}double f(double g, double h, double a) {
double r105985 = 1.0;
double r105986 = 2.0;
double r105987 = a;
double r105988 = r105986 * r105987;
double r105989 = r105985 / r105988;
double r105990 = g;
double r105991 = -r105990;
double r105992 = r105990 * r105990;
double r105993 = h;
double r105994 = r105993 * r105993;
double r105995 = r105992 - r105994;
double r105996 = sqrt(r105995);
double r105997 = r105991 + r105996;
double r105998 = r105989 * r105997;
double r105999 = cbrt(r105998);
double r106000 = r105991 - r105996;
double r106001 = r105989 * r106000;
double r106002 = cbrt(r106001);
double r106003 = r105999 + r106002;
return r106003;
}
double f(double g, double h, double a) {
double r106004 = g;
double r106005 = -2.5831109636145956e-186;
bool r106006 = r106004 <= r106005;
double r106007 = 1.0;
double r106008 = r106004 * r106004;
double r106009 = h;
double r106010 = r106009 * r106009;
double r106011 = r106008 - r106010;
double r106012 = sqrt(r106011);
double r106013 = r106012 - r106004;
double r106014 = r106007 * r106013;
double r106015 = cbrt(r106014);
double r106016 = 2.0;
double r106017 = a;
double r106018 = r106016 * r106017;
double r106019 = cbrt(r106018);
double r106020 = r106015 / r106019;
double r106021 = r106007 / r106018;
double r106022 = cbrt(r106021);
double r106023 = -r106004;
double r106024 = r106023 - r106023;
double r106025 = cbrt(r106024);
double r106026 = r106022 * r106025;
double r106027 = r106020 + r106026;
double r106028 = r106023 + r106012;
double r106029 = r106021 * r106028;
double r106030 = cbrt(r106029);
double r106031 = r106023 - r106004;
double r106032 = cbrt(r106031);
double r106033 = r106022 * r106032;
double r106034 = r106030 + r106033;
double r106035 = r106006 ? r106027 : r106034;
return r106035;
}



Bits error versus g



Bits error versus h



Bits error versus a
Results
if g < -2.5831109636145956e-186Initial program 34.9
rmApplied cbrt-prod34.8
rmApplied associate-*l/34.8
Applied cbrt-div31.4
Simplified31.4
Taylor expanded around -inf 31.7
Simplified31.7
if -2.5831109636145956e-186 < g Initial program 36.4
rmApplied cbrt-prod33.0
Taylor expanded around inf 31.9
Final simplification31.8
herbie shell --seed 2020046
(FPCore (g h a)
:name "2-ancestry mixing, positive discriminant"
:precision binary64
(+ (cbrt (* (/ 1 (* 2 a)) (+ (- g) (sqrt (- (* g g) (* h h)))))) (cbrt (* (/ 1 (* 2 a)) (- (- g) (sqrt (- (* g g) (* h h))))))))