2-ancestry mixing, zero discriminant

Percentage Accurate: 76.3% → 98.7%
Time: 4.0s
Alternatives: 5
Speedup: 1.0×

Specification

?
\[\begin{array}{l} \\ \sqrt[3]{\frac{g}{2 \cdot a}} \end{array} \]
(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:

Local Percentage Accuracy vs ?

The average percentage accuracy by input value. Horizontal axis shows value of an input variable; the variable is choosen in the title. Vertical axis is accuracy; higher is better. Red represent the original program, while blue represents Herbie's suggestion. These can be toggled with buttons below the plot. The line is an average while dots represent individual samples.

Accuracy vs Speed?

Herbie found 5 alternatives:

AlternativeAccuracySpeedup
The accuracy (vertical axis) and speed (horizontal axis) of each alternatives. Up and to the right is better. The red square shows the initial program, and each blue circle shows an alternative.The line shows the best available speed-accuracy tradeoffs.

Initial Program: 76.3% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \sqrt[3]{\frac{g}{2 \cdot a}} \end{array} \]
(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}

Alternative 1: 98.7% accurate, 0.5× speedup?

\[\begin{array}{l} \\ \frac{\sqrt[3]{\frac{-0.5}{a}}}{\sqrt[3]{\frac{-1}{g}}} \end{array} \]
(FPCore (g a) :precision binary64 (/ (cbrt (/ -0.5 a)) (cbrt (/ -1.0 g))))
double code(double g, double a) {
	return cbrt((-0.5 / a)) / cbrt((-1.0 / g));
}
public static double code(double g, double a) {
	return Math.cbrt((-0.5 / a)) / Math.cbrt((-1.0 / g));
}
function code(g, a)
	return Float64(cbrt(Float64(-0.5 / a)) / cbrt(Float64(-1.0 / g)))
end
code[g_, a_] := N[(N[Power[N[(-0.5 / a), $MachinePrecision], 1/3], $MachinePrecision] / N[Power[N[(-1.0 / g), $MachinePrecision], 1/3], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\frac{\sqrt[3]{\frac{-0.5}{a}}}{\sqrt[3]{\frac{-1}{g}}}
\end{array}
Derivation
  1. Initial program 77.8%

    \[\sqrt[3]{\frac{g}{2 \cdot a}} \]
  2. Add Preprocessing
  3. Step-by-step derivation
    1. lift-cbrt.f64N/A

      \[\leadsto \color{blue}{\sqrt[3]{\frac{g}{2 \cdot a}}} \]
    2. lift-/.f64N/A

      \[\leadsto \sqrt[3]{\color{blue}{\frac{g}{2 \cdot a}}} \]
    3. frac-2negN/A

      \[\leadsto \sqrt[3]{\color{blue}{\frac{\mathsf{neg}\left(g\right)}{\mathsf{neg}\left(2 \cdot a\right)}}} \]
    4. cbrt-divN/A

      \[\leadsto \color{blue}{\frac{\sqrt[3]{\mathsf{neg}\left(g\right)}}{\sqrt[3]{\mathsf{neg}\left(2 \cdot a\right)}}} \]
    5. neg-mul-1N/A

      \[\leadsto \frac{\sqrt[3]{\mathsf{neg}\left(g\right)}}{\sqrt[3]{\color{blue}{-1 \cdot \left(2 \cdot a\right)}}} \]
    6. cbrt-prodN/A

      \[\leadsto \frac{\sqrt[3]{\mathsf{neg}\left(g\right)}}{\color{blue}{\sqrt[3]{-1} \cdot \sqrt[3]{2 \cdot a}}} \]
    7. pow1/3N/A

      \[\leadsto \frac{\sqrt[3]{\mathsf{neg}\left(g\right)}}{\color{blue}{{-1}^{\frac{1}{3}}} \cdot \sqrt[3]{2 \cdot a}} \]
    8. associate-/r*N/A

      \[\leadsto \color{blue}{\frac{\frac{\sqrt[3]{\mathsf{neg}\left(g\right)}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}}} \]
    9. lower-/.f64N/A

      \[\leadsto \color{blue}{\frac{\frac{\sqrt[3]{\mathsf{neg}\left(g\right)}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}}} \]
    10. pow1/3N/A

      \[\leadsto \frac{\frac{\color{blue}{{\left(\mathsf{neg}\left(g\right)\right)}^{\frac{1}{3}}}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    11. sqr-powN/A

      \[\leadsto \frac{\frac{\color{blue}{{\left(\mathsf{neg}\left(g\right)\right)}^{\left(\frac{\frac{1}{3}}{2}\right)} \cdot {\left(\mathsf{neg}\left(g\right)\right)}^{\left(\frac{\frac{1}{3}}{2}\right)}}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    12. pow-prod-downN/A

      \[\leadsto \frac{\frac{\color{blue}{{\left(\left(\mathsf{neg}\left(g\right)\right) \cdot \left(\mathsf{neg}\left(g\right)\right)\right)}^{\left(\frac{\frac{1}{3}}{2}\right)}}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    13. sqr-negN/A

      \[\leadsto \frac{\frac{{\color{blue}{\left(\left(\mathsf{neg}\left(\left(\mathsf{neg}\left(g\right)\right)\right)\right) \cdot \left(\mathsf{neg}\left(\left(\mathsf{neg}\left(g\right)\right)\right)\right)\right)}}^{\left(\frac{\frac{1}{3}}{2}\right)}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    14. remove-double-negN/A

      \[\leadsto \frac{\frac{{\left(\color{blue}{g} \cdot \left(\mathsf{neg}\left(\left(\mathsf{neg}\left(g\right)\right)\right)\right)\right)}^{\left(\frac{\frac{1}{3}}{2}\right)}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    15. remove-double-negN/A

      \[\leadsto \frac{\frac{{\left(g \cdot \color{blue}{g}\right)}^{\left(\frac{\frac{1}{3}}{2}\right)}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    16. pow-prod-downN/A

      \[\leadsto \frac{\frac{\color{blue}{{g}^{\left(\frac{\frac{1}{3}}{2}\right)} \cdot {g}^{\left(\frac{\frac{1}{3}}{2}\right)}}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    17. sqr-powN/A

      \[\leadsto \frac{\frac{\color{blue}{{g}^{\frac{1}{3}}}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    18. pow1/3N/A

      \[\leadsto \frac{\frac{\color{blue}{\sqrt[3]{g}}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    19. lower-/.f64N/A

      \[\leadsto \frac{\color{blue}{\frac{\sqrt[3]{g}}{{-1}^{\frac{1}{3}}}}}{\sqrt[3]{2 \cdot a}} \]
    20. lower-cbrt.f64N/A

      \[\leadsto \frac{\frac{\color{blue}{\sqrt[3]{g}}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    21. pow1/3N/A

      \[\leadsto \frac{\frac{\sqrt[3]{g}}{\color{blue}{\sqrt[3]{-1}}}}{\sqrt[3]{2 \cdot a}} \]
    22. lower-cbrt.f64N/A

      \[\leadsto \frac{\frac{\sqrt[3]{g}}{\color{blue}{\sqrt[3]{-1}}}}{\sqrt[3]{2 \cdot a}} \]
    23. lower-cbrt.f641.7

      \[\leadsto \frac{\frac{\sqrt[3]{g}}{\sqrt[3]{-1}}}{\color{blue}{\sqrt[3]{2 \cdot a}}} \]
    24. remove-double-divN/A

      \[\leadsto \frac{\frac{\sqrt[3]{g}}{\sqrt[3]{-1}}}{\sqrt[3]{\color{blue}{\frac{1}{\frac{1}{2 \cdot a}}}}} \]
  4. Applied rewrites98.8%

    \[\leadsto \color{blue}{\frac{\frac{\sqrt[3]{g}}{\sqrt[3]{-1}}}{\sqrt[3]{-2 \cdot a}}} \]
  5. Step-by-step derivation
    1. lift-/.f64N/A

      \[\leadsto \color{blue}{\frac{\frac{\sqrt[3]{g}}{\sqrt[3]{-1}}}{\sqrt[3]{-2 \cdot a}}} \]
    2. lift-/.f64N/A

      \[\leadsto \frac{\color{blue}{\frac{\sqrt[3]{g}}{\sqrt[3]{-1}}}}{\sqrt[3]{-2 \cdot a}} \]
    3. clear-numN/A

      \[\leadsto \frac{\color{blue}{\frac{1}{\frac{\sqrt[3]{-1}}{\sqrt[3]{g}}}}}{\sqrt[3]{-2 \cdot a}} \]
    4. associate-/r*N/A

      \[\leadsto \color{blue}{\frac{1}{\frac{\sqrt[3]{-1}}{\sqrt[3]{g}} \cdot \sqrt[3]{-2 \cdot a}}} \]
    5. associate-/l/N/A

      \[\leadsto \color{blue}{\frac{\frac{1}{\sqrt[3]{-2 \cdot a}}}{\frac{\sqrt[3]{-1}}{\sqrt[3]{g}}}} \]
    6. lower-/.f64N/A

      \[\leadsto \color{blue}{\frac{\frac{1}{\sqrt[3]{-2 \cdot a}}}{\frac{\sqrt[3]{-1}}{\sqrt[3]{g}}}} \]
    7. metadata-evalN/A

      \[\leadsto \frac{\frac{\color{blue}{\sqrt[3]{1}}}{\sqrt[3]{-2 \cdot a}}}{\frac{\sqrt[3]{-1}}{\sqrt[3]{g}}} \]
    8. lift-cbrt.f64N/A

      \[\leadsto \frac{\frac{\sqrt[3]{1}}{\color{blue}{\sqrt[3]{-2 \cdot a}}}}{\frac{\sqrt[3]{-1}}{\sqrt[3]{g}}} \]
    9. lift-*.f64N/A

      \[\leadsto \frac{\frac{\sqrt[3]{1}}{\sqrt[3]{\color{blue}{-2 \cdot a}}}}{\frac{\sqrt[3]{-1}}{\sqrt[3]{g}}} \]
    10. *-commutativeN/A

      \[\leadsto \frac{\frac{\sqrt[3]{1}}{\sqrt[3]{\color{blue}{a \cdot -2}}}}{\frac{\sqrt[3]{-1}}{\sqrt[3]{g}}} \]
    11. metadata-evalN/A

      \[\leadsto \frac{\frac{\sqrt[3]{1}}{\sqrt[3]{a \cdot \color{blue}{\frac{1}{\frac{-1}{2}}}}}}{\frac{\sqrt[3]{-1}}{\sqrt[3]{g}}} \]
    12. div-invN/A

      \[\leadsto \frac{\frac{\sqrt[3]{1}}{\sqrt[3]{\color{blue}{\frac{a}{\frac{-1}{2}}}}}}{\frac{\sqrt[3]{-1}}{\sqrt[3]{g}}} \]
    13. cbrt-divN/A

      \[\leadsto \frac{\color{blue}{\sqrt[3]{\frac{1}{\frac{a}{\frac{-1}{2}}}}}}{\frac{\sqrt[3]{-1}}{\sqrt[3]{g}}} \]
    14. clear-numN/A

      \[\leadsto \frac{\sqrt[3]{\color{blue}{\frac{\frac{-1}{2}}{a}}}}{\frac{\sqrt[3]{-1}}{\sqrt[3]{g}}} \]
    15. lift-/.f64N/A

      \[\leadsto \frac{\sqrt[3]{\color{blue}{\frac{\frac{-1}{2}}{a}}}}{\frac{\sqrt[3]{-1}}{\sqrt[3]{g}}} \]
    16. lower-cbrt.f64N/A

      \[\leadsto \frac{\color{blue}{\sqrt[3]{\frac{\frac{-1}{2}}{a}}}}{\frac{\sqrt[3]{-1}}{\sqrt[3]{g}}} \]
    17. lift-cbrt.f64N/A

      \[\leadsto \frac{\sqrt[3]{\frac{\frac{-1}{2}}{a}}}{\frac{\color{blue}{\sqrt[3]{-1}}}{\sqrt[3]{g}}} \]
    18. lift-cbrt.f64N/A

      \[\leadsto \frac{\sqrt[3]{\frac{\frac{-1}{2}}{a}}}{\frac{\sqrt[3]{-1}}{\color{blue}{\sqrt[3]{g}}}} \]
    19. cbrt-undivN/A

      \[\leadsto \frac{\sqrt[3]{\frac{\frac{-1}{2}}{a}}}{\color{blue}{\sqrt[3]{\frac{-1}{g}}}} \]
    20. lower-cbrt.f64N/A

      \[\leadsto \frac{\sqrt[3]{\frac{\frac{-1}{2}}{a}}}{\color{blue}{\sqrt[3]{\frac{-1}{g}}}} \]
    21. lower-/.f6498.8

      \[\leadsto \frac{\sqrt[3]{\frac{-0.5}{a}}}{\sqrt[3]{\color{blue}{\frac{-1}{g}}}} \]
  6. Applied rewrites98.8%

    \[\leadsto \color{blue}{\frac{\sqrt[3]{\frac{-0.5}{a}}}{\sqrt[3]{\frac{-1}{g}}}} \]
  7. Add Preprocessing

Alternative 2: 98.7% accurate, 0.5× speedup?

\[\begin{array}{l} \\ \frac{\sqrt[3]{g}}{\sqrt[3]{2 \cdot a}} \end{array} \]
(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}
Derivation
  1. Initial program 77.8%

    \[\sqrt[3]{\frac{g}{2 \cdot a}} \]
  2. Add Preprocessing
  3. Step-by-step derivation
    1. lift-cbrt.f64N/A

      \[\leadsto \color{blue}{\sqrt[3]{\frac{g}{2 \cdot a}}} \]
    2. lift-/.f64N/A

      \[\leadsto \sqrt[3]{\color{blue}{\frac{g}{2 \cdot a}}} \]
    3. frac-2negN/A

      \[\leadsto \sqrt[3]{\color{blue}{\frac{\mathsf{neg}\left(g\right)}{\mathsf{neg}\left(2 \cdot a\right)}}} \]
    4. cbrt-divN/A

      \[\leadsto \color{blue}{\frac{\sqrt[3]{\mathsf{neg}\left(g\right)}}{\sqrt[3]{\mathsf{neg}\left(2 \cdot a\right)}}} \]
    5. neg-mul-1N/A

      \[\leadsto \frac{\sqrt[3]{\mathsf{neg}\left(g\right)}}{\sqrt[3]{\color{blue}{-1 \cdot \left(2 \cdot a\right)}}} \]
    6. cbrt-prodN/A

      \[\leadsto \frac{\sqrt[3]{\mathsf{neg}\left(g\right)}}{\color{blue}{\sqrt[3]{-1} \cdot \sqrt[3]{2 \cdot a}}} \]
    7. pow1/3N/A

      \[\leadsto \frac{\sqrt[3]{\mathsf{neg}\left(g\right)}}{\color{blue}{{-1}^{\frac{1}{3}}} \cdot \sqrt[3]{2 \cdot a}} \]
    8. associate-/r*N/A

      \[\leadsto \color{blue}{\frac{\frac{\sqrt[3]{\mathsf{neg}\left(g\right)}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}}} \]
    9. lower-/.f64N/A

      \[\leadsto \color{blue}{\frac{\frac{\sqrt[3]{\mathsf{neg}\left(g\right)}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}}} \]
    10. pow1/3N/A

      \[\leadsto \frac{\frac{\color{blue}{{\left(\mathsf{neg}\left(g\right)\right)}^{\frac{1}{3}}}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    11. sqr-powN/A

      \[\leadsto \frac{\frac{\color{blue}{{\left(\mathsf{neg}\left(g\right)\right)}^{\left(\frac{\frac{1}{3}}{2}\right)} \cdot {\left(\mathsf{neg}\left(g\right)\right)}^{\left(\frac{\frac{1}{3}}{2}\right)}}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    12. pow-prod-downN/A

      \[\leadsto \frac{\frac{\color{blue}{{\left(\left(\mathsf{neg}\left(g\right)\right) \cdot \left(\mathsf{neg}\left(g\right)\right)\right)}^{\left(\frac{\frac{1}{3}}{2}\right)}}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    13. sqr-negN/A

      \[\leadsto \frac{\frac{{\color{blue}{\left(\left(\mathsf{neg}\left(\left(\mathsf{neg}\left(g\right)\right)\right)\right) \cdot \left(\mathsf{neg}\left(\left(\mathsf{neg}\left(g\right)\right)\right)\right)\right)}}^{\left(\frac{\frac{1}{3}}{2}\right)}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    14. remove-double-negN/A

      \[\leadsto \frac{\frac{{\left(\color{blue}{g} \cdot \left(\mathsf{neg}\left(\left(\mathsf{neg}\left(g\right)\right)\right)\right)\right)}^{\left(\frac{\frac{1}{3}}{2}\right)}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    15. remove-double-negN/A

      \[\leadsto \frac{\frac{{\left(g \cdot \color{blue}{g}\right)}^{\left(\frac{\frac{1}{3}}{2}\right)}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    16. pow-prod-downN/A

      \[\leadsto \frac{\frac{\color{blue}{{g}^{\left(\frac{\frac{1}{3}}{2}\right)} \cdot {g}^{\left(\frac{\frac{1}{3}}{2}\right)}}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    17. sqr-powN/A

      \[\leadsto \frac{\frac{\color{blue}{{g}^{\frac{1}{3}}}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    18. pow1/3N/A

      \[\leadsto \frac{\frac{\color{blue}{\sqrt[3]{g}}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    19. lower-/.f64N/A

      \[\leadsto \frac{\color{blue}{\frac{\sqrt[3]{g}}{{-1}^{\frac{1}{3}}}}}{\sqrt[3]{2 \cdot a}} \]
    20. lower-cbrt.f64N/A

      \[\leadsto \frac{\frac{\color{blue}{\sqrt[3]{g}}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    21. pow1/3N/A

      \[\leadsto \frac{\frac{\sqrt[3]{g}}{\color{blue}{\sqrt[3]{-1}}}}{\sqrt[3]{2 \cdot a}} \]
    22. lower-cbrt.f64N/A

      \[\leadsto \frac{\frac{\sqrt[3]{g}}{\color{blue}{\sqrt[3]{-1}}}}{\sqrt[3]{2 \cdot a}} \]
    23. lower-cbrt.f641.7

      \[\leadsto \frac{\frac{\sqrt[3]{g}}{\sqrt[3]{-1}}}{\color{blue}{\sqrt[3]{2 \cdot a}}} \]
    24. remove-double-divN/A

      \[\leadsto \frac{\frac{\sqrt[3]{g}}{\sqrt[3]{-1}}}{\sqrt[3]{\color{blue}{\frac{1}{\frac{1}{2 \cdot a}}}}} \]
  4. Applied rewrites98.8%

    \[\leadsto \color{blue}{\frac{\frac{\sqrt[3]{g}}{\sqrt[3]{-1}}}{\sqrt[3]{-2 \cdot a}}} \]
  5. Step-by-step derivation
    1. lift-/.f64N/A

      \[\leadsto \color{blue}{\frac{\frac{\sqrt[3]{g}}{\sqrt[3]{-1}}}{\sqrt[3]{-2 \cdot a}}} \]
    2. lift-/.f64N/A

      \[\leadsto \frac{\color{blue}{\frac{\sqrt[3]{g}}{\sqrt[3]{-1}}}}{\sqrt[3]{-2 \cdot a}} \]
    3. associate-/l/N/A

      \[\leadsto \color{blue}{\frac{\sqrt[3]{g}}{\sqrt[3]{-2 \cdot a} \cdot \sqrt[3]{-1}}} \]
    4. lower-/.f64N/A

      \[\leadsto \color{blue}{\frac{\sqrt[3]{g}}{\sqrt[3]{-2 \cdot a} \cdot \sqrt[3]{-1}}} \]
    5. *-commutativeN/A

      \[\leadsto \frac{\sqrt[3]{g}}{\color{blue}{\sqrt[3]{-1} \cdot \sqrt[3]{-2 \cdot a}}} \]
    6. lift-cbrt.f64N/A

      \[\leadsto \frac{\sqrt[3]{g}}{\color{blue}{\sqrt[3]{-1}} \cdot \sqrt[3]{-2 \cdot a}} \]
    7. lift-cbrt.f64N/A

      \[\leadsto \frac{\sqrt[3]{g}}{\sqrt[3]{-1} \cdot \color{blue}{\sqrt[3]{-2 \cdot a}}} \]
    8. cbrt-prodN/A

      \[\leadsto \frac{\sqrt[3]{g}}{\color{blue}{\sqrt[3]{-1 \cdot \left(-2 \cdot a\right)}}} \]
    9. neg-mul-1N/A

      \[\leadsto \frac{\sqrt[3]{g}}{\sqrt[3]{\color{blue}{\mathsf{neg}\left(-2 \cdot a\right)}}} \]
    10. lower-cbrt.f64N/A

      \[\leadsto \frac{\sqrt[3]{g}}{\color{blue}{\sqrt[3]{\mathsf{neg}\left(-2 \cdot a\right)}}} \]
    11. lift-*.f64N/A

      \[\leadsto \frac{\sqrt[3]{g}}{\sqrt[3]{\mathsf{neg}\left(\color{blue}{-2 \cdot a}\right)}} \]
    12. distribute-lft-neg-inN/A

      \[\leadsto \frac{\sqrt[3]{g}}{\sqrt[3]{\color{blue}{\left(\mathsf{neg}\left(-2\right)\right) \cdot a}}} \]
    13. metadata-evalN/A

      \[\leadsto \frac{\sqrt[3]{g}}{\sqrt[3]{\color{blue}{2} \cdot a}} \]
    14. lower-*.f6498.8

      \[\leadsto \frac{\sqrt[3]{g}}{\sqrt[3]{\color{blue}{2 \cdot a}}} \]
  6. Applied rewrites98.8%

    \[\leadsto \color{blue}{\frac{\sqrt[3]{g}}{\sqrt[3]{2 \cdot a}}} \]
  7. Add Preprocessing

Alternative 3: 98.7% accurate, 0.5× speedup?

\[\begin{array}{l} \\ \sqrt[3]{\frac{0.5}{a}} \cdot \sqrt[3]{g} \end{array} \]
(FPCore (g a) :precision binary64 (* (cbrt (/ 0.5 a)) (cbrt g)))
double code(double g, double a) {
	return cbrt((0.5 / a)) * cbrt(g);
}
public static double code(double g, double a) {
	return Math.cbrt((0.5 / a)) * Math.cbrt(g);
}
function code(g, a)
	return Float64(cbrt(Float64(0.5 / a)) * cbrt(g))
end
code[g_, a_] := N[(N[Power[N[(0.5 / a), $MachinePrecision], 1/3], $MachinePrecision] * N[Power[g, 1/3], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\sqrt[3]{\frac{0.5}{a}} \cdot \sqrt[3]{g}
\end{array}
Derivation
  1. Initial program 77.8%

    \[\sqrt[3]{\frac{g}{2 \cdot a}} \]
  2. Add Preprocessing
  3. Step-by-step derivation
    1. lift-cbrt.f64N/A

      \[\leadsto \color{blue}{\sqrt[3]{\frac{g}{2 \cdot a}}} \]
    2. lift-/.f64N/A

      \[\leadsto \sqrt[3]{\color{blue}{\frac{g}{2 \cdot a}}} \]
    3. frac-2negN/A

      \[\leadsto \sqrt[3]{\color{blue}{\frac{\mathsf{neg}\left(g\right)}{\mathsf{neg}\left(2 \cdot a\right)}}} \]
    4. cbrt-divN/A

      \[\leadsto \color{blue}{\frac{\sqrt[3]{\mathsf{neg}\left(g\right)}}{\sqrt[3]{\mathsf{neg}\left(2 \cdot a\right)}}} \]
    5. neg-mul-1N/A

      \[\leadsto \frac{\sqrt[3]{\mathsf{neg}\left(g\right)}}{\sqrt[3]{\color{blue}{-1 \cdot \left(2 \cdot a\right)}}} \]
    6. cbrt-prodN/A

      \[\leadsto \frac{\sqrt[3]{\mathsf{neg}\left(g\right)}}{\color{blue}{\sqrt[3]{-1} \cdot \sqrt[3]{2 \cdot a}}} \]
    7. pow1/3N/A

      \[\leadsto \frac{\sqrt[3]{\mathsf{neg}\left(g\right)}}{\color{blue}{{-1}^{\frac{1}{3}}} \cdot \sqrt[3]{2 \cdot a}} \]
    8. associate-/r*N/A

      \[\leadsto \color{blue}{\frac{\frac{\sqrt[3]{\mathsf{neg}\left(g\right)}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}}} \]
    9. lower-/.f64N/A

      \[\leadsto \color{blue}{\frac{\frac{\sqrt[3]{\mathsf{neg}\left(g\right)}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}}} \]
    10. pow1/3N/A

      \[\leadsto \frac{\frac{\color{blue}{{\left(\mathsf{neg}\left(g\right)\right)}^{\frac{1}{3}}}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    11. sqr-powN/A

      \[\leadsto \frac{\frac{\color{blue}{{\left(\mathsf{neg}\left(g\right)\right)}^{\left(\frac{\frac{1}{3}}{2}\right)} \cdot {\left(\mathsf{neg}\left(g\right)\right)}^{\left(\frac{\frac{1}{3}}{2}\right)}}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    12. pow-prod-downN/A

      \[\leadsto \frac{\frac{\color{blue}{{\left(\left(\mathsf{neg}\left(g\right)\right) \cdot \left(\mathsf{neg}\left(g\right)\right)\right)}^{\left(\frac{\frac{1}{3}}{2}\right)}}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    13. sqr-negN/A

      \[\leadsto \frac{\frac{{\color{blue}{\left(\left(\mathsf{neg}\left(\left(\mathsf{neg}\left(g\right)\right)\right)\right) \cdot \left(\mathsf{neg}\left(\left(\mathsf{neg}\left(g\right)\right)\right)\right)\right)}}^{\left(\frac{\frac{1}{3}}{2}\right)}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    14. remove-double-negN/A

      \[\leadsto \frac{\frac{{\left(\color{blue}{g} \cdot \left(\mathsf{neg}\left(\left(\mathsf{neg}\left(g\right)\right)\right)\right)\right)}^{\left(\frac{\frac{1}{3}}{2}\right)}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    15. remove-double-negN/A

      \[\leadsto \frac{\frac{{\left(g \cdot \color{blue}{g}\right)}^{\left(\frac{\frac{1}{3}}{2}\right)}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    16. pow-prod-downN/A

      \[\leadsto \frac{\frac{\color{blue}{{g}^{\left(\frac{\frac{1}{3}}{2}\right)} \cdot {g}^{\left(\frac{\frac{1}{3}}{2}\right)}}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    17. sqr-powN/A

      \[\leadsto \frac{\frac{\color{blue}{{g}^{\frac{1}{3}}}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    18. pow1/3N/A

      \[\leadsto \frac{\frac{\color{blue}{\sqrt[3]{g}}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    19. lower-/.f64N/A

      \[\leadsto \frac{\color{blue}{\frac{\sqrt[3]{g}}{{-1}^{\frac{1}{3}}}}}{\sqrt[3]{2 \cdot a}} \]
    20. lower-cbrt.f64N/A

      \[\leadsto \frac{\frac{\color{blue}{\sqrt[3]{g}}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    21. pow1/3N/A

      \[\leadsto \frac{\frac{\sqrt[3]{g}}{\color{blue}{\sqrt[3]{-1}}}}{\sqrt[3]{2 \cdot a}} \]
    22. lower-cbrt.f64N/A

      \[\leadsto \frac{\frac{\sqrt[3]{g}}{\color{blue}{\sqrt[3]{-1}}}}{\sqrt[3]{2 \cdot a}} \]
    23. lower-cbrt.f641.7

      \[\leadsto \frac{\frac{\sqrt[3]{g}}{\sqrt[3]{-1}}}{\color{blue}{\sqrt[3]{2 \cdot a}}} \]
    24. remove-double-divN/A

      \[\leadsto \frac{\frac{\sqrt[3]{g}}{\sqrt[3]{-1}}}{\sqrt[3]{\color{blue}{\frac{1}{\frac{1}{2 \cdot a}}}}} \]
  4. Applied rewrites98.8%

    \[\leadsto \color{blue}{\frac{\frac{\sqrt[3]{g}}{\sqrt[3]{-1}}}{\sqrt[3]{-2 \cdot a}}} \]
  5. Step-by-step derivation
    1. lift-/.f64N/A

      \[\leadsto \color{blue}{\frac{\frac{\sqrt[3]{g}}{\sqrt[3]{-1}}}{\sqrt[3]{-2 \cdot a}}} \]
    2. lift-/.f64N/A

      \[\leadsto \frac{\color{blue}{\frac{\sqrt[3]{g}}{\sqrt[3]{-1}}}}{\sqrt[3]{-2 \cdot a}} \]
    3. lift-cbrt.f64N/A

      \[\leadsto \frac{\frac{\color{blue}{\sqrt[3]{g}}}{\sqrt[3]{-1}}}{\sqrt[3]{-2 \cdot a}} \]
    4. lift-cbrt.f64N/A

      \[\leadsto \frac{\frac{\sqrt[3]{g}}{\color{blue}{\sqrt[3]{-1}}}}{\sqrt[3]{-2 \cdot a}} \]
    5. cbrt-undivN/A

      \[\leadsto \frac{\color{blue}{\sqrt[3]{\frac{g}{-1}}}}{\sqrt[3]{-2 \cdot a}} \]
    6. div-invN/A

      \[\leadsto \frac{\sqrt[3]{\color{blue}{g \cdot \frac{1}{-1}}}}{\sqrt[3]{-2 \cdot a}} \]
    7. metadata-evalN/A

      \[\leadsto \frac{\sqrt[3]{g \cdot \color{blue}{-1}}}{\sqrt[3]{-2 \cdot a}} \]
    8. *-commutativeN/A

      \[\leadsto \frac{\sqrt[3]{\color{blue}{-1 \cdot g}}}{\sqrt[3]{-2 \cdot a}} \]
    9. cbrt-prodN/A

      \[\leadsto \frac{\color{blue}{\sqrt[3]{-1} \cdot \sqrt[3]{g}}}{\sqrt[3]{-2 \cdot a}} \]
    10. lift-cbrt.f64N/A

      \[\leadsto \frac{\color{blue}{\sqrt[3]{-1}} \cdot \sqrt[3]{g}}{\sqrt[3]{-2 \cdot a}} \]
    11. lift-cbrt.f64N/A

      \[\leadsto \frac{\sqrt[3]{-1} \cdot \color{blue}{\sqrt[3]{g}}}{\sqrt[3]{-2 \cdot a}} \]
    12. associate-*l/N/A

      \[\leadsto \color{blue}{\frac{\sqrt[3]{-1}}{\sqrt[3]{-2 \cdot a}} \cdot \sqrt[3]{g}} \]
    13. lift-cbrt.f64N/A

      \[\leadsto \frac{\color{blue}{\sqrt[3]{-1}}}{\sqrt[3]{-2 \cdot a}} \cdot \sqrt[3]{g} \]
    14. lift-cbrt.f64N/A

      \[\leadsto \frac{\sqrt[3]{-1}}{\color{blue}{\sqrt[3]{-2 \cdot a}}} \cdot \sqrt[3]{g} \]
    15. cbrt-undivN/A

      \[\leadsto \color{blue}{\sqrt[3]{\frac{-1}{-2 \cdot a}}} \cdot \sqrt[3]{g} \]
    16. lower-*.f64N/A

      \[\leadsto \color{blue}{\sqrt[3]{\frac{-1}{-2 \cdot a}} \cdot \sqrt[3]{g}} \]
  6. Applied rewrites98.8%

    \[\leadsto \color{blue}{\sqrt[3]{\frac{0.5}{a}} \cdot \sqrt[3]{g}} \]
  7. Add Preprocessing

Alternative 4: 76.3% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \sqrt[3]{\frac{g}{2 \cdot a}} \end{array} \]
(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}
Derivation
  1. Initial program 77.8%

    \[\sqrt[3]{\frac{g}{2 \cdot a}} \]
  2. Add Preprocessing
  3. Add Preprocessing

Alternative 5: 76.3% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \sqrt[3]{\frac{0.5}{a} \cdot g} \end{array} \]
(FPCore (g a) :precision binary64 (cbrt (* (/ 0.5 a) g)))
double code(double g, double a) {
	return cbrt(((0.5 / a) * g));
}
public static double code(double g, double a) {
	return Math.cbrt(((0.5 / a) * g));
}
function code(g, a)
	return cbrt(Float64(Float64(0.5 / a) * g))
end
code[g_, a_] := N[Power[N[(N[(0.5 / a), $MachinePrecision] * g), $MachinePrecision], 1/3], $MachinePrecision]
\begin{array}{l}

\\
\sqrt[3]{\frac{0.5}{a} \cdot g}
\end{array}
Derivation
  1. Initial program 77.8%

    \[\sqrt[3]{\frac{g}{2 \cdot a}} \]
  2. Add Preprocessing
  3. Step-by-step derivation
    1. lift-cbrt.f64N/A

      \[\leadsto \color{blue}{\sqrt[3]{\frac{g}{2 \cdot a}}} \]
    2. lift-/.f64N/A

      \[\leadsto \sqrt[3]{\color{blue}{\frac{g}{2 \cdot a}}} \]
    3. frac-2negN/A

      \[\leadsto \sqrt[3]{\color{blue}{\frac{\mathsf{neg}\left(g\right)}{\mathsf{neg}\left(2 \cdot a\right)}}} \]
    4. cbrt-divN/A

      \[\leadsto \color{blue}{\frac{\sqrt[3]{\mathsf{neg}\left(g\right)}}{\sqrt[3]{\mathsf{neg}\left(2 \cdot a\right)}}} \]
    5. neg-mul-1N/A

      \[\leadsto \frac{\sqrt[3]{\mathsf{neg}\left(g\right)}}{\sqrt[3]{\color{blue}{-1 \cdot \left(2 \cdot a\right)}}} \]
    6. cbrt-prodN/A

      \[\leadsto \frac{\sqrt[3]{\mathsf{neg}\left(g\right)}}{\color{blue}{\sqrt[3]{-1} \cdot \sqrt[3]{2 \cdot a}}} \]
    7. pow1/3N/A

      \[\leadsto \frac{\sqrt[3]{\mathsf{neg}\left(g\right)}}{\color{blue}{{-1}^{\frac{1}{3}}} \cdot \sqrt[3]{2 \cdot a}} \]
    8. associate-/r*N/A

      \[\leadsto \color{blue}{\frac{\frac{\sqrt[3]{\mathsf{neg}\left(g\right)}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}}} \]
    9. lower-/.f64N/A

      \[\leadsto \color{blue}{\frac{\frac{\sqrt[3]{\mathsf{neg}\left(g\right)}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}}} \]
    10. pow1/3N/A

      \[\leadsto \frac{\frac{\color{blue}{{\left(\mathsf{neg}\left(g\right)\right)}^{\frac{1}{3}}}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    11. sqr-powN/A

      \[\leadsto \frac{\frac{\color{blue}{{\left(\mathsf{neg}\left(g\right)\right)}^{\left(\frac{\frac{1}{3}}{2}\right)} \cdot {\left(\mathsf{neg}\left(g\right)\right)}^{\left(\frac{\frac{1}{3}}{2}\right)}}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    12. pow-prod-downN/A

      \[\leadsto \frac{\frac{\color{blue}{{\left(\left(\mathsf{neg}\left(g\right)\right) \cdot \left(\mathsf{neg}\left(g\right)\right)\right)}^{\left(\frac{\frac{1}{3}}{2}\right)}}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    13. sqr-negN/A

      \[\leadsto \frac{\frac{{\color{blue}{\left(\left(\mathsf{neg}\left(\left(\mathsf{neg}\left(g\right)\right)\right)\right) \cdot \left(\mathsf{neg}\left(\left(\mathsf{neg}\left(g\right)\right)\right)\right)\right)}}^{\left(\frac{\frac{1}{3}}{2}\right)}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    14. remove-double-negN/A

      \[\leadsto \frac{\frac{{\left(\color{blue}{g} \cdot \left(\mathsf{neg}\left(\left(\mathsf{neg}\left(g\right)\right)\right)\right)\right)}^{\left(\frac{\frac{1}{3}}{2}\right)}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    15. remove-double-negN/A

      \[\leadsto \frac{\frac{{\left(g \cdot \color{blue}{g}\right)}^{\left(\frac{\frac{1}{3}}{2}\right)}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    16. pow-prod-downN/A

      \[\leadsto \frac{\frac{\color{blue}{{g}^{\left(\frac{\frac{1}{3}}{2}\right)} \cdot {g}^{\left(\frac{\frac{1}{3}}{2}\right)}}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    17. sqr-powN/A

      \[\leadsto \frac{\frac{\color{blue}{{g}^{\frac{1}{3}}}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    18. pow1/3N/A

      \[\leadsto \frac{\frac{\color{blue}{\sqrt[3]{g}}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    19. lower-/.f64N/A

      \[\leadsto \frac{\color{blue}{\frac{\sqrt[3]{g}}{{-1}^{\frac{1}{3}}}}}{\sqrt[3]{2 \cdot a}} \]
    20. lower-cbrt.f64N/A

      \[\leadsto \frac{\frac{\color{blue}{\sqrt[3]{g}}}{{-1}^{\frac{1}{3}}}}{\sqrt[3]{2 \cdot a}} \]
    21. pow1/3N/A

      \[\leadsto \frac{\frac{\sqrt[3]{g}}{\color{blue}{\sqrt[3]{-1}}}}{\sqrt[3]{2 \cdot a}} \]
    22. lower-cbrt.f64N/A

      \[\leadsto \frac{\frac{\sqrt[3]{g}}{\color{blue}{\sqrt[3]{-1}}}}{\sqrt[3]{2 \cdot a}} \]
    23. lower-cbrt.f641.7

      \[\leadsto \frac{\frac{\sqrt[3]{g}}{\sqrt[3]{-1}}}{\color{blue}{\sqrt[3]{2 \cdot a}}} \]
    24. remove-double-divN/A

      \[\leadsto \frac{\frac{\sqrt[3]{g}}{\sqrt[3]{-1}}}{\sqrt[3]{\color{blue}{\frac{1}{\frac{1}{2 \cdot a}}}}} \]
  4. Applied rewrites98.8%

    \[\leadsto \color{blue}{\frac{\frac{\sqrt[3]{g}}{\sqrt[3]{-1}}}{\sqrt[3]{-2 \cdot a}}} \]
  5. Step-by-step derivation
    1. lift-/.f64N/A

      \[\leadsto \color{blue}{\frac{\frac{\sqrt[3]{g}}{\sqrt[3]{-1}}}{\sqrt[3]{-2 \cdot a}}} \]
    2. div-invN/A

      \[\leadsto \color{blue}{\frac{\sqrt[3]{g}}{\sqrt[3]{-1}} \cdot \frac{1}{\sqrt[3]{-2 \cdot a}}} \]
    3. lift-/.f64N/A

      \[\leadsto \color{blue}{\frac{\sqrt[3]{g}}{\sqrt[3]{-1}}} \cdot \frac{1}{\sqrt[3]{-2 \cdot a}} \]
    4. lift-cbrt.f64N/A

      \[\leadsto \frac{\color{blue}{\sqrt[3]{g}}}{\sqrt[3]{-1}} \cdot \frac{1}{\sqrt[3]{-2 \cdot a}} \]
    5. lift-cbrt.f64N/A

      \[\leadsto \frac{\sqrt[3]{g}}{\color{blue}{\sqrt[3]{-1}}} \cdot \frac{1}{\sqrt[3]{-2 \cdot a}} \]
    6. cbrt-undivN/A

      \[\leadsto \color{blue}{\sqrt[3]{\frac{g}{-1}}} \cdot \frac{1}{\sqrt[3]{-2 \cdot a}} \]
    7. div-invN/A

      \[\leadsto \sqrt[3]{\color{blue}{g \cdot \frac{1}{-1}}} \cdot \frac{1}{\sqrt[3]{-2 \cdot a}} \]
    8. metadata-evalN/A

      \[\leadsto \sqrt[3]{g \cdot \color{blue}{-1}} \cdot \frac{1}{\sqrt[3]{-2 \cdot a}} \]
    9. *-commutativeN/A

      \[\leadsto \sqrt[3]{\color{blue}{-1 \cdot g}} \cdot \frac{1}{\sqrt[3]{-2 \cdot a}} \]
    10. neg-mul-1N/A

      \[\leadsto \sqrt[3]{\color{blue}{\mathsf{neg}\left(g\right)}} \cdot \frac{1}{\sqrt[3]{-2 \cdot a}} \]
    11. lift-neg.f64N/A

      \[\leadsto \sqrt[3]{\color{blue}{-g}} \cdot \frac{1}{\sqrt[3]{-2 \cdot a}} \]
    12. metadata-evalN/A

      \[\leadsto \sqrt[3]{-g} \cdot \frac{\color{blue}{\sqrt[3]{1}}}{\sqrt[3]{-2 \cdot a}} \]
    13. lift-cbrt.f64N/A

      \[\leadsto \sqrt[3]{-g} \cdot \frac{\sqrt[3]{1}}{\color{blue}{\sqrt[3]{-2 \cdot a}}} \]
    14. lift-*.f64N/A

      \[\leadsto \sqrt[3]{-g} \cdot \frac{\sqrt[3]{1}}{\sqrt[3]{\color{blue}{-2 \cdot a}}} \]
    15. *-commutativeN/A

      \[\leadsto \sqrt[3]{-g} \cdot \frac{\sqrt[3]{1}}{\sqrt[3]{\color{blue}{a \cdot -2}}} \]
    16. metadata-evalN/A

      \[\leadsto \sqrt[3]{-g} \cdot \frac{\sqrt[3]{1}}{\sqrt[3]{a \cdot \color{blue}{\frac{1}{\frac{-1}{2}}}}} \]
    17. div-invN/A

      \[\leadsto \sqrt[3]{-g} \cdot \frac{\sqrt[3]{1}}{\sqrt[3]{\color{blue}{\frac{a}{\frac{-1}{2}}}}} \]
    18. cbrt-divN/A

      \[\leadsto \sqrt[3]{-g} \cdot \color{blue}{\sqrt[3]{\frac{1}{\frac{a}{\frac{-1}{2}}}}} \]
    19. clear-numN/A

      \[\leadsto \sqrt[3]{-g} \cdot \sqrt[3]{\color{blue}{\frac{\frac{-1}{2}}{a}}} \]
    20. lift-/.f64N/A

      \[\leadsto \sqrt[3]{-g} \cdot \sqrt[3]{\color{blue}{\frac{\frac{-1}{2}}{a}}} \]
    21. cbrt-prodN/A

      \[\leadsto \color{blue}{\sqrt[3]{\left(-g\right) \cdot \frac{\frac{-1}{2}}{a}}} \]
    22. *-commutativeN/A

      \[\leadsto \sqrt[3]{\color{blue}{\frac{\frac{-1}{2}}{a} \cdot \left(-g\right)}} \]
    23. lift-*.f64N/A

      \[\leadsto \sqrt[3]{\color{blue}{\frac{\frac{-1}{2}}{a} \cdot \left(-g\right)}} \]
    24. lift-cbrt.f6477.7

      \[\leadsto \color{blue}{\sqrt[3]{\frac{-0.5}{a} \cdot \left(-g\right)}} \]
    25. lift-*.f64N/A

      \[\leadsto \sqrt[3]{\color{blue}{\frac{\frac{-1}{2}}{a} \cdot \left(-g\right)}} \]
  6. Applied rewrites77.7%

    \[\leadsto \color{blue}{\sqrt[3]{\frac{0.5}{a} \cdot g}} \]
  7. Add Preprocessing

Reproduce

?
herbie shell --seed 2024324 
(FPCore (g a)
  :name "2-ancestry mixing, zero discriminant"
  :precision binary64
  (cbrt (/ g (* 2.0 a))))