
(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 9 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 (* (cbrt (* g 0.5)) (cbrt (/ 1.0 a))))
double code(double g, double a) {
return cbrt((g * 0.5)) * cbrt((1.0 / a));
}
public static double code(double g, double a) {
return Math.cbrt((g * 0.5)) * Math.cbrt((1.0 / a));
}
function code(g, a) return Float64(cbrt(Float64(g * 0.5)) * cbrt(Float64(1.0 / a))) end
code[g_, a_] := N[(N[Power[N[(g * 0.5), $MachinePrecision], 1/3], $MachinePrecision] * N[Power[N[(1.0 / a), $MachinePrecision], 1/3], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\sqrt[3]{g \cdot 0.5} \cdot \sqrt[3]{\frac{1}{a}}
\end{array}
Initial program 73.5%
pow1/333.2%
associate-/r*33.2%
div-inv33.2%
unpow-prod-down24.0%
pow1/350.7%
div-inv50.7%
metadata-eval50.7%
Applied egg-rr50.7%
unpow1/398.7%
Simplified98.7%
(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 73.5%
associate-/r*73.5%
cbrt-div98.7%
div-inv98.7%
metadata-eval98.7%
Applied egg-rr98.7%
(FPCore (g a) :precision binary64 (/ (cbrt g) (cbrt (* a 2.0))))
double code(double g, double a) {
return cbrt(g) / cbrt((a * 2.0));
}
public static double code(double g, double a) {
return Math.cbrt(g) / Math.cbrt((a * 2.0));
}
function code(g, a) return Float64(cbrt(g) / cbrt(Float64(a * 2.0))) end
code[g_, a_] := N[(N[Power[g, 1/3], $MachinePrecision] / N[Power[N[(a * 2.0), $MachinePrecision], 1/3], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{\sqrt[3]{g}}{\sqrt[3]{a \cdot 2}}
\end{array}
Initial program 73.5%
cbrt-div98.7%
clear-num98.7%
Applied egg-rr98.7%
associate-/r/98.6%
associate-*l/98.7%
*-lft-identity98.7%
*-commutative98.7%
Simplified98.7%
(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 73.5%
pow1/333.2%
clear-num32.7%
associate-/r/33.2%
unpow-prod-down24.0%
pow1/345.7%
associate-/r*45.7%
metadata-eval45.7%
pow1/398.5%
Applied egg-rr98.5%
Final simplification98.5%
(FPCore (g a) :precision binary64 (/ 1.0 (cbrt (/ a (* g 0.5)))))
double code(double g, double a) {
return 1.0 / cbrt((a / (g * 0.5)));
}
public static double code(double g, double a) {
return 1.0 / Math.cbrt((a / (g * 0.5)));
}
function code(g, a) return Float64(1.0 / cbrt(Float64(a / Float64(g * 0.5)))) end
code[g_, a_] := N[(1.0 / N[Power[N[(a / N[(g * 0.5), $MachinePrecision]), $MachinePrecision], 1/3], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{1}{\sqrt[3]{\frac{a}{g \cdot 0.5}}}
\end{array}
Initial program 73.5%
associate-/r*73.5%
cbrt-div98.7%
div-inv98.7%
metadata-eval98.7%
Applied egg-rr98.7%
clear-num98.6%
div-inv98.6%
metadata-eval98.6%
metadata-eval98.6%
div-inv98.6%
cbrt-div98.6%
clear-num98.6%
cbrt-div98.3%
associate-/l*98.2%
cbrt-prod98.7%
frac-2neg98.7%
metadata-eval98.7%
div-inv98.7%
cbrt-prod98.2%
associate-/l*98.3%
cbrt-div98.6%
clear-num98.6%
cbrt-div98.6%
Applied egg-rr74.7%
mul-1-neg74.7%
distribute-frac-neg274.7%
remove-double-neg74.7%
Simplified74.7%
(FPCore (g a) :precision binary64 (/ 1.0 (cbrt (* a (/ 2.0 g)))))
double code(double g, double a) {
return 1.0 / cbrt((a * (2.0 / g)));
}
public static double code(double g, double a) {
return 1.0 / Math.cbrt((a * (2.0 / g)));
}
function code(g, a) return Float64(1.0 / cbrt(Float64(a * Float64(2.0 / g)))) end
code[g_, a_] := N[(1.0 / N[Power[N[(a * N[(2.0 / g), $MachinePrecision]), $MachinePrecision], 1/3], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{1}{\sqrt[3]{a \cdot \frac{2}{g}}}
\end{array}
Initial program 73.5%
clear-num72.9%
cbrt-div74.7%
metadata-eval74.7%
associate-/l*74.6%
Applied egg-rr74.6%
associate-*r/74.7%
*-commutative74.7%
associate-/l*74.7%
Simplified74.7%
(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 73.5%
clear-num72.9%
cbrt-div74.7%
metadata-eval74.7%
associate-/l*74.6%
Applied egg-rr74.6%
(FPCore (g a) :precision binary64 (cbrt (/ g (* a 2.0))))
double code(double g, double a) {
return cbrt((g / (a * 2.0)));
}
public static double code(double g, double a) {
return Math.cbrt((g / (a * 2.0)));
}
function code(g, a) return cbrt(Float64(g / Float64(a * 2.0))) end
code[g_, a_] := N[Power[N[(g / N[(a * 2.0), $MachinePrecision]), $MachinePrecision], 1/3], $MachinePrecision]
\begin{array}{l}
\\
\sqrt[3]{\frac{g}{a \cdot 2}}
\end{array}
Initial program 73.5%
Final simplification73.5%
(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 73.5%
clear-num72.9%
associate-/r/73.5%
associate-/r*73.5%
metadata-eval73.5%
Applied egg-rr73.5%
Final simplification73.5%
herbie shell --seed 2024150
(FPCore (g a)
:name "2-ancestry mixing, zero discriminant"
:precision binary64
(cbrt (/ g (* 2.0 a))))