
(FPCore (g a) :precision binary64 (cbrt (/ g (* 2.0 a))))
double code(double g, double a) {
return cbrt((g / (2.0 * a)));
}
public static double code(double g, double a) {
return Math.cbrt((g / (2.0 * a)));
}
function code(g, a) return cbrt(Float64(g / Float64(2.0 * a))) end
code[g_, a_] := N[Power[N[(g / N[(2.0 * a), $MachinePrecision]), $MachinePrecision], 1/3], $MachinePrecision]
\begin{array}{l}
\\
\sqrt[3]{\frac{g}{2 \cdot a}}
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 12 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (g a) :precision binary64 (cbrt (/ g (* 2.0 a))))
double code(double g, double a) {
return cbrt((g / (2.0 * a)));
}
public static double code(double g, double a) {
return Math.cbrt((g / (2.0 * a)));
}
function code(g, a) return cbrt(Float64(g / Float64(2.0 * a))) end
code[g_, a_] := N[Power[N[(g / N[(2.0 * a), $MachinePrecision]), $MachinePrecision], 1/3], $MachinePrecision]
\begin{array}{l}
\\
\sqrt[3]{\frac{g}{2 \cdot a}}
\end{array}
(FPCore (g a) :precision binary64 (/ 1.0 (/ (cbrt (/ 2.0 g)) (cbrt (/ 1.0 a)))))
double code(double g, double a) {
return 1.0 / (cbrt((2.0 / g)) / cbrt((1.0 / a)));
}
public static double code(double g, double a) {
return 1.0 / (Math.cbrt((2.0 / g)) / Math.cbrt((1.0 / a)));
}
function code(g, a) return Float64(1.0 / Float64(cbrt(Float64(2.0 / g)) / cbrt(Float64(1.0 / a)))) end
code[g_, a_] := N[(1.0 / N[(N[Power[N[(2.0 / g), $MachinePrecision], 1/3], $MachinePrecision] / N[Power[N[(1.0 / a), $MachinePrecision], 1/3], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{1}{\frac{\sqrt[3]{\frac{2}{g}}}{\sqrt[3]{\frac{1}{a}}}}
\end{array}
Initial program 73.4%
clear-num73.2%
cbrt-div73.8%
metadata-eval73.8%
associate-/l*73.7%
Applied egg-rr73.7%
associate-*r/73.8%
*-commutative73.8%
associate-/l*73.8%
Simplified73.8%
cbrt-prod98.6%
clear-num98.6%
cbrt-div98.6%
metadata-eval98.6%
div-inv98.6%
metadata-eval98.6%
div-inv98.6%
add-cube-cbrt97.6%
associate-/l*97.7%
pow297.7%
Applied egg-rr97.7%
associate-*r/97.6%
unpow297.6%
rem-3cbrt-lft98.6%
Simplified98.6%
clear-num98.6%
associate-/r/98.6%
metadata-eval98.6%
metadata-eval98.6%
div-inv98.6%
cbrt-div98.6%
clear-num98.6%
/-rgt-identity98.6%
clear-num98.6%
div-inv98.7%
add-sqr-sqrt48.1%
associate-/l*48.2%
pow1/345.7%
sqrt-pow145.7%
metadata-eval45.7%
pow1/344.9%
sqrt-pow144.9%
metadata-eval44.9%
add-cbrt-cube44.9%
un-div-inv44.9%
Applied egg-rr44.9%
associate-*r/44.9%
pow-sqr44.9%
metadata-eval44.9%
unpow1/398.8%
Simplified98.8%
(FPCore (g a) :precision binary64 (* (cbrt (/ 1.0 a)) (/ 1.0 (cbrt (/ 2.0 g)))))
double code(double g, double a) {
return cbrt((1.0 / a)) * (1.0 / cbrt((2.0 / g)));
}
public static double code(double g, double a) {
return Math.cbrt((1.0 / a)) * (1.0 / Math.cbrt((2.0 / g)));
}
function code(g, a) return Float64(cbrt(Float64(1.0 / a)) * Float64(1.0 / cbrt(Float64(2.0 / g)))) end
code[g_, a_] := N[(N[Power[N[(1.0 / a), $MachinePrecision], 1/3], $MachinePrecision] * N[(1.0 / N[Power[N[(2.0 / g), $MachinePrecision], 1/3], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\sqrt[3]{\frac{1}{a}} \cdot \frac{1}{\sqrt[3]{\frac{2}{g}}}
\end{array}
Initial program 73.4%
pow1/337.9%
associate-/r*37.9%
div-inv37.9%
unpow-prod-down26.1%
pow1/349.7%
div-inv49.7%
metadata-eval49.7%
Applied egg-rr49.7%
unpow1/398.7%
Simplified98.7%
cbrt-div98.6%
metadata-eval98.6%
div-inv98.6%
clear-num98.6%
div-inv98.6%
metadata-eval98.6%
metadata-eval98.6%
div-inv98.6%
cbrt-div98.6%
clear-num98.6%
associate-/r*98.7%
Applied egg-rr98.7%
clear-num98.7%
associate-/r/98.7%
add-cbrt-cube98.5%
un-div-inv98.5%
frac-times98.4%
metadata-eval98.4%
associate-/r*98.4%
add-cube-cbrt98.8%
Applied egg-rr98.8%
Final simplification98.8%
(FPCore (g a) :precision binary64 (/ (cbrt (/ 1.0 a)) (cbrt (/ 2.0 g))))
double code(double g, double a) {
return cbrt((1.0 / a)) / cbrt((2.0 / g));
}
public static double code(double g, double a) {
return Math.cbrt((1.0 / a)) / Math.cbrt((2.0 / g));
}
function code(g, a) return Float64(cbrt(Float64(1.0 / a)) / cbrt(Float64(2.0 / g))) end
code[g_, a_] := N[(N[Power[N[(1.0 / a), $MachinePrecision], 1/3], $MachinePrecision] / N[Power[N[(2.0 / g), $MachinePrecision], 1/3], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{\sqrt[3]{\frac{1}{a}}}{\sqrt[3]{\frac{2}{g}}}
\end{array}
Initial program 73.4%
pow1/337.9%
associate-/r*37.9%
div-inv37.9%
unpow-prod-down26.1%
pow1/349.7%
div-inv49.7%
metadata-eval49.7%
Applied egg-rr49.7%
unpow1/398.7%
Simplified98.7%
cbrt-div98.6%
metadata-eval98.6%
div-inv98.6%
clear-num98.6%
div-inv98.6%
metadata-eval98.6%
metadata-eval98.6%
div-inv98.6%
cbrt-div98.6%
clear-num98.6%
associate-/r*98.7%
Applied egg-rr98.7%
Taylor expanded in a around 0 98.7%
(FPCore (g a) :precision binary64 (* (cbrt (/ 1.0 a)) (cbrt (* g 0.5))))
double code(double g, double a) {
return cbrt((1.0 / a)) * cbrt((g * 0.5));
}
public static double code(double g, double a) {
return Math.cbrt((1.0 / a)) * Math.cbrt((g * 0.5));
}
function code(g, a) return Float64(cbrt(Float64(1.0 / a)) * cbrt(Float64(g * 0.5))) end
code[g_, a_] := N[(N[Power[N[(1.0 / a), $MachinePrecision], 1/3], $MachinePrecision] * N[Power[N[(g * 0.5), $MachinePrecision], 1/3], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\sqrt[3]{\frac{1}{a}} \cdot \sqrt[3]{g \cdot 0.5}
\end{array}
Initial program 73.4%
pow1/337.9%
associate-/r*37.9%
div-inv37.9%
unpow-prod-down26.1%
pow1/349.7%
div-inv49.7%
metadata-eval49.7%
Applied egg-rr49.7%
unpow1/398.7%
Simplified98.7%
Final simplification98.7%
(FPCore (g a) :precision binary64 (/ (cbrt (* g 0.5)) (cbrt a)))
double code(double g, double a) {
return cbrt((g * 0.5)) / cbrt(a);
}
public static double code(double g, double a) {
return Math.cbrt((g * 0.5)) / Math.cbrt(a);
}
function code(g, a) return Float64(cbrt(Float64(g * 0.5)) / cbrt(a)) end
code[g_, a_] := N[(N[Power[N[(g * 0.5), $MachinePrecision], 1/3], $MachinePrecision] / N[Power[a, 1/3], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{\sqrt[3]{g \cdot 0.5}}{\sqrt[3]{a}}
\end{array}
Initial program 73.4%
associate-/r*73.4%
cbrt-div98.6%
div-inv98.6%
metadata-eval98.6%
Applied egg-rr98.6%
(FPCore (g a) :precision binary64 (/ (cbrt g) (cbrt (* 2.0 a))))
double code(double g, double a) {
return cbrt(g) / cbrt((2.0 * a));
}
public static double code(double g, double a) {
return Math.cbrt(g) / Math.cbrt((2.0 * a));
}
function code(g, a) return Float64(cbrt(g) / cbrt(Float64(2.0 * a))) end
code[g_, a_] := N[(N[Power[g, 1/3], $MachinePrecision] / N[Power[N[(2.0 * a), $MachinePrecision], 1/3], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{\sqrt[3]{g}}{\sqrt[3]{2 \cdot a}}
\end{array}
Initial program 73.4%
cbrt-div98.6%
clear-num98.6%
Applied egg-rr98.6%
associate-/r/98.6%
associate-*l/98.6%
*-lft-identity98.6%
*-commutative98.6%
Simplified98.6%
Final simplification98.6%
(FPCore (g a) :precision binary64 (* (cbrt g) (cbrt (/ 0.5 a))))
double code(double g, double a) {
return cbrt(g) * cbrt((0.5 / a));
}
public static double code(double g, double a) {
return Math.cbrt(g) * Math.cbrt((0.5 / a));
}
function code(g, a) return Float64(cbrt(g) * cbrt(Float64(0.5 / a))) end
code[g_, a_] := N[(N[Power[g, 1/3], $MachinePrecision] * N[Power[N[(0.5 / a), $MachinePrecision], 1/3], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\sqrt[3]{g} \cdot \sqrt[3]{\frac{0.5}{a}}
\end{array}
Initial program 73.4%
pow1/337.9%
clear-num37.8%
associate-/r/37.9%
unpow-prod-down26.1%
pow1/344.9%
associate-/r*44.9%
metadata-eval44.9%
pow1/398.6%
Applied egg-rr98.6%
Final simplification98.6%
(FPCore (g a) :precision binary64 (/ 1.0 (cbrt (/ (* 2.0 a) g))))
double code(double g, double a) {
return 1.0 / cbrt(((2.0 * a) / g));
}
public static double code(double g, double a) {
return 1.0 / Math.cbrt(((2.0 * a) / g));
}
function code(g, a) return Float64(1.0 / cbrt(Float64(Float64(2.0 * a) / g))) end
code[g_, a_] := N[(1.0 / N[Power[N[(N[(2.0 * a), $MachinePrecision] / g), $MachinePrecision], 1/3], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{1}{\sqrt[3]{\frac{2 \cdot a}{g}}}
\end{array}
Initial program 73.4%
clear-num73.2%
cbrt-div73.8%
metadata-eval73.8%
associate-/l*73.7%
Applied egg-rr73.7%
associate-*r/73.8%
*-commutative73.8%
associate-/l*73.8%
Simplified73.8%
associate-*r/73.8%
Applied egg-rr73.8%
Final simplification73.8%
(FPCore (g a) :precision binary64 (/ 1.0 (cbrt (* (/ 2.0 g) a))))
double code(double g, double a) {
return 1.0 / cbrt(((2.0 / g) * a));
}
public static double code(double g, double a) {
return 1.0 / Math.cbrt(((2.0 / g) * a));
}
function code(g, a) return Float64(1.0 / cbrt(Float64(Float64(2.0 / g) * a))) end
code[g_, a_] := N[(1.0 / N[Power[N[(N[(2.0 / g), $MachinePrecision] * a), $MachinePrecision], 1/3], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{1}{\sqrt[3]{\frac{2}{g} \cdot a}}
\end{array}
Initial program 73.4%
clear-num73.2%
cbrt-div73.8%
metadata-eval73.8%
associate-/l*73.7%
Applied egg-rr73.7%
associate-*r/73.8%
*-commutative73.8%
associate-/l*73.8%
Simplified73.8%
Final simplification73.8%
(FPCore (g a) :precision binary64 (/ 1.0 (cbrt (* 2.0 (/ a g)))))
double code(double g, double a) {
return 1.0 / cbrt((2.0 * (a / g)));
}
public static double code(double g, double a) {
return 1.0 / Math.cbrt((2.0 * (a / g)));
}
function code(g, a) return Float64(1.0 / cbrt(Float64(2.0 * Float64(a / g)))) end
code[g_, a_] := N[(1.0 / N[Power[N[(2.0 * N[(a / g), $MachinePrecision]), $MachinePrecision], 1/3], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{1}{\sqrt[3]{2 \cdot \frac{a}{g}}}
\end{array}
Initial program 73.4%
clear-num73.2%
cbrt-div73.8%
metadata-eval73.8%
associate-/l*73.7%
Applied egg-rr73.7%
(FPCore (g a) :precision binary64 (cbrt (/ (/ 1.0 a) (/ 2.0 g))))
double code(double g, double a) {
return cbrt(((1.0 / a) / (2.0 / g)));
}
public static double code(double g, double a) {
return Math.cbrt(((1.0 / a) / (2.0 / g)));
}
function code(g, a) return cbrt(Float64(Float64(1.0 / a) / Float64(2.0 / g))) end
code[g_, a_] := N[Power[N[(N[(1.0 / a), $MachinePrecision] / N[(2.0 / g), $MachinePrecision]), $MachinePrecision], 1/3], $MachinePrecision]
\begin{array}{l}
\\
\sqrt[3]{\frac{\frac{1}{a}}{\frac{2}{g}}}
\end{array}
Initial program 73.4%
pow1/337.9%
associate-/r*37.9%
div-inv37.9%
unpow-prod-down26.1%
pow1/349.7%
div-inv49.7%
metadata-eval49.7%
Applied egg-rr49.7%
unpow1/398.7%
Simplified98.7%
cbrt-div98.6%
metadata-eval98.6%
div-inv98.6%
clear-num98.6%
div-inv98.6%
metadata-eval98.6%
metadata-eval98.6%
div-inv98.6%
cbrt-div98.6%
clear-num98.6%
associate-/r*98.7%
Applied egg-rr98.7%
add-cbrt-cube98.5%
cbrt-undiv73.2%
un-div-inv73.2%
frac-times73.2%
metadata-eval73.2%
associate-/r*73.3%
add-cube-cbrt73.4%
Applied egg-rr73.4%
(FPCore (g a) :precision binary64 (cbrt (* g (/ 0.5 a))))
double code(double g, double a) {
return cbrt((g * (0.5 / a)));
}
public static double code(double g, double a) {
return Math.cbrt((g * (0.5 / a)));
}
function code(g, a) return cbrt(Float64(g * Float64(0.5 / a))) end
code[g_, a_] := N[Power[N[(g * N[(0.5 / a), $MachinePrecision]), $MachinePrecision], 1/3], $MachinePrecision]
\begin{array}{l}
\\
\sqrt[3]{g \cdot \frac{0.5}{a}}
\end{array}
Initial program 73.4%
add-log-exp9.8%
*-un-lft-identity9.8%
log-prod9.8%
metadata-eval9.8%
add-log-exp73.4%
div-inv73.4%
associate-/r*73.4%
metadata-eval73.4%
Applied egg-rr73.4%
+-lft-identity73.4%
Simplified73.4%
herbie shell --seed 2024093
(FPCore (g a)
:name "2-ancestry mixing, zero discriminant"
:precision binary64
(cbrt (/ g (* 2.0 a))))