2-ancestry mixing, positive discriminant

Percentage Accurate: 44.1% → 95.7%
Time: 15.6s
Alternatives: 7
Speedup: 2.6×

Specification

?
\[\begin{array}{l} \\ \begin{array}{l} t_0 := \frac{1}{2 \cdot a}\\ t_1 := \sqrt{g \cdot g - h \cdot h}\\ \sqrt[3]{t\_0 \cdot \left(\left(-g\right) + t\_1\right)} + \sqrt[3]{t\_0 \cdot \left(\left(-g\right) - t\_1\right)} \end{array} \end{array} \]
(FPCore (g h a)
 :precision binary64
 (let* ((t_0 (/ 1.0 (* 2.0 a))) (t_1 (sqrt (- (* g g) (* h h)))))
   (+ (cbrt (* t_0 (+ (- g) t_1))) (cbrt (* t_0 (- (- g) t_1))))))
double code(double g, double h, double a) {
	double t_0 = 1.0 / (2.0 * a);
	double t_1 = sqrt(((g * g) - (h * h)));
	return cbrt((t_0 * (-g + t_1))) + cbrt((t_0 * (-g - t_1)));
}
public static double code(double g, double h, double a) {
	double t_0 = 1.0 / (2.0 * a);
	double t_1 = Math.sqrt(((g * g) - (h * h)));
	return Math.cbrt((t_0 * (-g + t_1))) + Math.cbrt((t_0 * (-g - t_1)));
}
function code(g, h, a)
	t_0 = Float64(1.0 / Float64(2.0 * a))
	t_1 = sqrt(Float64(Float64(g * g) - Float64(h * h)))
	return Float64(cbrt(Float64(t_0 * Float64(Float64(-g) + t_1))) + cbrt(Float64(t_0 * Float64(Float64(-g) - t_1))))
end
code[g_, h_, a_] := Block[{t$95$0 = N[(1.0 / N[(2.0 * a), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$1 = N[Sqrt[N[(N[(g * g), $MachinePrecision] - N[(h * h), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]}, N[(N[Power[N[(t$95$0 * N[((-g) + t$95$1), $MachinePrecision]), $MachinePrecision], 1/3], $MachinePrecision] + N[Power[N[(t$95$0 * N[((-g) - t$95$1), $MachinePrecision]), $MachinePrecision], 1/3], $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := \frac{1}{2 \cdot a}\\
t_1 := \sqrt{g \cdot g - h \cdot h}\\
\sqrt[3]{t\_0 \cdot \left(\left(-g\right) + t\_1\right)} + \sqrt[3]{t\_0 \cdot \left(\left(-g\right) - t\_1\right)}
\end{array}
\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 7 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: 44.1% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := \frac{1}{2 \cdot a}\\ t_1 := \sqrt{g \cdot g - h \cdot h}\\ \sqrt[3]{t\_0 \cdot \left(\left(-g\right) + t\_1\right)} + \sqrt[3]{t\_0 \cdot \left(\left(-g\right) - t\_1\right)} \end{array} \end{array} \]
(FPCore (g h a)
 :precision binary64
 (let* ((t_0 (/ 1.0 (* 2.0 a))) (t_1 (sqrt (- (* g g) (* h h)))))
   (+ (cbrt (* t_0 (+ (- g) t_1))) (cbrt (* t_0 (- (- g) t_1))))))
double code(double g, double h, double a) {
	double t_0 = 1.0 / (2.0 * a);
	double t_1 = sqrt(((g * g) - (h * h)));
	return cbrt((t_0 * (-g + t_1))) + cbrt((t_0 * (-g - t_1)));
}
public static double code(double g, double h, double a) {
	double t_0 = 1.0 / (2.0 * a);
	double t_1 = Math.sqrt(((g * g) - (h * h)));
	return Math.cbrt((t_0 * (-g + t_1))) + Math.cbrt((t_0 * (-g - t_1)));
}
function code(g, h, a)
	t_0 = Float64(1.0 / Float64(2.0 * a))
	t_1 = sqrt(Float64(Float64(g * g) - Float64(h * h)))
	return Float64(cbrt(Float64(t_0 * Float64(Float64(-g) + t_1))) + cbrt(Float64(t_0 * Float64(Float64(-g) - t_1))))
end
code[g_, h_, a_] := Block[{t$95$0 = N[(1.0 / N[(2.0 * a), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$1 = N[Sqrt[N[(N[(g * g), $MachinePrecision] - N[(h * h), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]}, N[(N[Power[N[(t$95$0 * N[((-g) + t$95$1), $MachinePrecision]), $MachinePrecision], 1/3], $MachinePrecision] + N[Power[N[(t$95$0 * N[((-g) - t$95$1), $MachinePrecision]), $MachinePrecision], 1/3], $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := \frac{1}{2 \cdot a}\\
t_1 := \sqrt{g \cdot g - h \cdot h}\\
\sqrt[3]{t\_0 \cdot \left(\left(-g\right) + t\_1\right)} + \sqrt[3]{t\_0 \cdot \left(\left(-g\right) - t\_1\right)}
\end{array}
\end{array}

Alternative 1: 95.7% accurate, 1.4× speedup?

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

\\
\frac{\sqrt[3]{-g}}{\sqrt[3]{a}}
\end{array}
Derivation
  1. Initial program 40.5%

    \[\sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) - \sqrt{g \cdot g - h \cdot h}\right)} \]
  2. Add Preprocessing
  3. Taylor expanded in g around inf

    \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(\mathsf{neg}\left(g\right)\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\color{blue}{-1 \cdot \frac{g}{a}}} \]
  4. Step-by-step derivation
    1. mul-1-negN/A

      \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(\mathsf{neg}\left(g\right)\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\color{blue}{\mathsf{neg}\left(\frac{g}{a}\right)}} \]
    2. distribute-neg-frac2N/A

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

      \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(\mathsf{neg}\left(g\right)\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\color{blue}{\frac{g}{\mathsf{neg}\left(a\right)}}} \]
    4. lower-neg.f6427.6

      \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\frac{g}{\color{blue}{-a}}} \]
  5. Simplified27.6%

    \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\color{blue}{\frac{g}{-a}}} \]
  6. Taylor expanded in g around inf

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

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

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

      \[\leadsto \sqrt[3]{\color{blue}{\frac{g}{a}}} \cdot \sqrt[3]{-1} \]
    4. lower-cbrt.f6471.8

      \[\leadsto \sqrt[3]{\frac{g}{a}} \cdot \color{blue}{\sqrt[3]{-1}} \]
  8. Simplified71.8%

    \[\leadsto \color{blue}{\sqrt[3]{\frac{g}{a}} \cdot \sqrt[3]{-1}} \]
  9. Step-by-step derivation
    1. cbrt-divN/A

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

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

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

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

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

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

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

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

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

      \[\leadsto \frac{\color{blue}{\sqrt[3]{\mathsf{neg}\left(g\right)}}}{\sqrt[3]{a}} \]
    11. lower-cbrt.f6495.3

      \[\leadsto \frac{\sqrt[3]{-g}}{\color{blue}{\sqrt[3]{a}}} \]
  10. Applied egg-rr95.3%

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

Alternative 2: 81.6% accurate, 1.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\frac{1}{a \cdot 2} \leq 5 \cdot 10^{-286}:\\ \;\;\;\;\frac{1}{\sqrt[3]{-\frac{a}{g}}}\\ \mathbf{else}:\\ \;\;\;\;\sqrt[3]{-g} \cdot {a}^{-0.3333333333333333}\\ \end{array} \end{array} \]
(FPCore (g h a)
 :precision binary64
 (if (<= (/ 1.0 (* a 2.0)) 5e-286)
   (/ 1.0 (cbrt (- (/ a g))))
   (* (cbrt (- g)) (pow a -0.3333333333333333))))
double code(double g, double h, double a) {
	double tmp;
	if ((1.0 / (a * 2.0)) <= 5e-286) {
		tmp = 1.0 / cbrt(-(a / g));
	} else {
		tmp = cbrt(-g) * pow(a, -0.3333333333333333);
	}
	return tmp;
}
public static double code(double g, double h, double a) {
	double tmp;
	if ((1.0 / (a * 2.0)) <= 5e-286) {
		tmp = 1.0 / Math.cbrt(-(a / g));
	} else {
		tmp = Math.cbrt(-g) * Math.pow(a, -0.3333333333333333);
	}
	return tmp;
}
function code(g, h, a)
	tmp = 0.0
	if (Float64(1.0 / Float64(a * 2.0)) <= 5e-286)
		tmp = Float64(1.0 / cbrt(Float64(-Float64(a / g))));
	else
		tmp = Float64(cbrt(Float64(-g)) * (a ^ -0.3333333333333333));
	end
	return tmp
end
code[g_, h_, a_] := If[LessEqual[N[(1.0 / N[(a * 2.0), $MachinePrecision]), $MachinePrecision], 5e-286], N[(1.0 / N[Power[(-N[(a / g), $MachinePrecision]), 1/3], $MachinePrecision]), $MachinePrecision], N[(N[Power[(-g), 1/3], $MachinePrecision] * N[Power[a, -0.3333333333333333], $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;\frac{1}{a \cdot 2} \leq 5 \cdot 10^{-286}:\\
\;\;\;\;\frac{1}{\sqrt[3]{-\frac{a}{g}}}\\

\mathbf{else}:\\
\;\;\;\;\sqrt[3]{-g} \cdot {a}^{-0.3333333333333333}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (/.f64 #s(literal 1 binary64) (*.f64 #s(literal 2 binary64) a)) < 5.00000000000000037e-286

    1. Initial program 42.7%

      \[\sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) - \sqrt{g \cdot g - h \cdot h}\right)} \]
    2. Add Preprocessing
    3. Taylor expanded in g around inf

      \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(\mathsf{neg}\left(g\right)\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\color{blue}{-1 \cdot \frac{g}{a}}} \]
    4. Step-by-step derivation
      1. mul-1-negN/A

        \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(\mathsf{neg}\left(g\right)\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\color{blue}{\mathsf{neg}\left(\frac{g}{a}\right)}} \]
      2. distribute-neg-frac2N/A

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

        \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(\mathsf{neg}\left(g\right)\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\color{blue}{\frac{g}{\mathsf{neg}\left(a\right)}}} \]
      4. lower-neg.f6427.1

        \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\frac{g}{\color{blue}{-a}}} \]
    5. Simplified27.1%

      \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\color{blue}{\frac{g}{-a}}} \]
    6. Taylor expanded in g around inf

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

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

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

        \[\leadsto \sqrt[3]{\color{blue}{\frac{g}{a}}} \cdot \sqrt[3]{-1} \]
      4. lower-cbrt.f6472.1

        \[\leadsto \sqrt[3]{\frac{g}{a}} \cdot \color{blue}{\sqrt[3]{-1}} \]
    8. Simplified72.1%

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

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

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

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

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

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

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

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

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

        \[\leadsto \sqrt[3]{\mathsf{neg}\left(\color{blue}{\frac{g}{a}}\right)} \]
      10. distribute-frac-neg2N/A

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

        \[\leadsto \sqrt[3]{\frac{g}{\color{blue}{\mathsf{neg}\left(a\right)}}} \]
      12. clear-numN/A

        \[\leadsto \sqrt[3]{\color{blue}{\frac{1}{\frac{\mathsf{neg}\left(a\right)}{g}}}} \]
      13. clear-numN/A

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

        \[\leadsto \color{blue}{\frac{\sqrt[3]{1}}{\sqrt[3]{\frac{\frac{\mathsf{neg}\left(a\right)}{g}}{1}}}} \]
      15. metadata-evalN/A

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

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

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

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

        \[\leadsto \frac{1}{\sqrt[3]{\frac{\frac{\color{blue}{\mathsf{neg}\left(a\right)}}{g}}{1}}} \]
      20. distribute-frac-negN/A

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

        \[\leadsto \frac{1}{\sqrt[3]{\frac{\color{blue}{\mathsf{neg}\left(\frac{a}{g}\right)}}{1}}} \]
      22. lower-/.f6472.5

        \[\leadsto \frac{1}{\sqrt[3]{\frac{-\color{blue}{\frac{a}{g}}}{1}}} \]
    10. Applied egg-rr72.5%

      \[\leadsto \color{blue}{\frac{1}{\sqrt[3]{\frac{-\frac{a}{g}}{1}}}} \]

    if 5.00000000000000037e-286 < (/.f64 #s(literal 1 binary64) (*.f64 #s(literal 2 binary64) a))

    1. Initial program 38.1%

      \[\sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) - \sqrt{g \cdot g - h \cdot h}\right)} \]
    2. Add Preprocessing
    3. Taylor expanded in g around inf

      \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(\mathsf{neg}\left(g\right)\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\color{blue}{-1 \cdot \frac{g}{a}}} \]
    4. Step-by-step derivation
      1. mul-1-negN/A

        \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(\mathsf{neg}\left(g\right)\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\color{blue}{\mathsf{neg}\left(\frac{g}{a}\right)}} \]
      2. distribute-neg-frac2N/A

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

        \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(\mathsf{neg}\left(g\right)\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\color{blue}{\frac{g}{\mathsf{neg}\left(a\right)}}} \]
      4. lower-neg.f6428.2

        \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\frac{g}{\color{blue}{-a}}} \]
    5. Simplified28.2%

      \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\color{blue}{\frac{g}{-a}}} \]
    6. Taylor expanded in g around inf

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

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

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

        \[\leadsto \sqrt[3]{\color{blue}{\frac{g}{a}}} \cdot \sqrt[3]{-1} \]
      4. lower-cbrt.f6471.3

        \[\leadsto \sqrt[3]{\frac{g}{a}} \cdot \color{blue}{\sqrt[3]{-1}} \]
    8. Simplified71.3%

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

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

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

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

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

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

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

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

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

        \[\leadsto \sqrt[3]{\mathsf{neg}\left(\color{blue}{\frac{g}{a}}\right)} \]
      10. div-invN/A

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

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

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

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

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

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

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

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

        \[\leadsto \sqrt[3]{\mathsf{neg}\left(g\right)} \cdot \color{blue}{{a}^{\left(-1 \cdot \frac{1}{3}\right)}} \]
      19. metadata-evalN/A

        \[\leadsto \sqrt[3]{\mathsf{neg}\left(g\right)} \cdot {a}^{\color{blue}{\frac{-1}{3}}} \]
      20. metadata-evalN/A

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

        \[\leadsto \sqrt[3]{\mathsf{neg}\left(g\right)} \cdot \color{blue}{{a}^{\left(\mathsf{neg}\left(\frac{1}{3}\right)\right)}} \]
      22. metadata-eval89.2

        \[\leadsto \sqrt[3]{-g} \cdot {a}^{\color{blue}{-0.3333333333333333}} \]
    10. Applied egg-rr89.2%

      \[\leadsto \color{blue}{\sqrt[3]{-g} \cdot {a}^{-0.3333333333333333}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification80.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{1}{a \cdot 2} \leq 5 \cdot 10^{-286}:\\ \;\;\;\;\frac{1}{\sqrt[3]{-\frac{a}{g}}}\\ \mathbf{else}:\\ \;\;\;\;\sqrt[3]{-g} \cdot {a}^{-0.3333333333333333}\\ \end{array} \]
  5. Add Preprocessing

Alternative 3: 89.6% accurate, 1.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;a \cdot 2 \leq -1 \cdot 10^{-307}:\\ \;\;\;\;{\left(-a\right)}^{-0.3333333333333333} \cdot \sqrt[3]{g}\\ \mathbf{else}:\\ \;\;\;\;\sqrt[3]{-g} \cdot {a}^{-0.3333333333333333}\\ \end{array} \end{array} \]
(FPCore (g h a)
 :precision binary64
 (if (<= (* a 2.0) -1e-307)
   (* (pow (- a) -0.3333333333333333) (cbrt g))
   (* (cbrt (- g)) (pow a -0.3333333333333333))))
double code(double g, double h, double a) {
	double tmp;
	if ((a * 2.0) <= -1e-307) {
		tmp = pow(-a, -0.3333333333333333) * cbrt(g);
	} else {
		tmp = cbrt(-g) * pow(a, -0.3333333333333333);
	}
	return tmp;
}
public static double code(double g, double h, double a) {
	double tmp;
	if ((a * 2.0) <= -1e-307) {
		tmp = Math.pow(-a, -0.3333333333333333) * Math.cbrt(g);
	} else {
		tmp = Math.cbrt(-g) * Math.pow(a, -0.3333333333333333);
	}
	return tmp;
}
function code(g, h, a)
	tmp = 0.0
	if (Float64(a * 2.0) <= -1e-307)
		tmp = Float64((Float64(-a) ^ -0.3333333333333333) * cbrt(g));
	else
		tmp = Float64(cbrt(Float64(-g)) * (a ^ -0.3333333333333333));
	end
	return tmp
end
code[g_, h_, a_] := If[LessEqual[N[(a * 2.0), $MachinePrecision], -1e-307], N[(N[Power[(-a), -0.3333333333333333], $MachinePrecision] * N[Power[g, 1/3], $MachinePrecision]), $MachinePrecision], N[(N[Power[(-g), 1/3], $MachinePrecision] * N[Power[a, -0.3333333333333333], $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;a \cdot 2 \leq -1 \cdot 10^{-307}:\\
\;\;\;\;{\left(-a\right)}^{-0.3333333333333333} \cdot \sqrt[3]{g}\\

\mathbf{else}:\\
\;\;\;\;\sqrt[3]{-g} \cdot {a}^{-0.3333333333333333}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (*.f64 #s(literal 2 binary64) a) < -9.99999999999999909e-308

    1. Initial program 43.3%

      \[\sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) - \sqrt{g \cdot g - h \cdot h}\right)} \]
    2. Add Preprocessing
    3. Taylor expanded in g around inf

      \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(\mathsf{neg}\left(g\right)\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\color{blue}{-1 \cdot \frac{g}{a}}} \]
    4. Step-by-step derivation
      1. mul-1-negN/A

        \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(\mathsf{neg}\left(g\right)\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\color{blue}{\mathsf{neg}\left(\frac{g}{a}\right)}} \]
      2. distribute-neg-frac2N/A

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

        \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(\mathsf{neg}\left(g\right)\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\color{blue}{\frac{g}{\mathsf{neg}\left(a\right)}}} \]
      4. lower-neg.f6427.2

        \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\frac{g}{\color{blue}{-a}}} \]
    5. Simplified27.2%

      \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\color{blue}{\frac{g}{-a}}} \]
    6. Taylor expanded in g around inf

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

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

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

        \[\leadsto \sqrt[3]{\color{blue}{\frac{g}{a}}} \cdot \sqrt[3]{-1} \]
      4. lower-cbrt.f6471.5

        \[\leadsto \sqrt[3]{\frac{g}{a}} \cdot \color{blue}{\sqrt[3]{-1}} \]
    8. Simplified71.5%

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

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

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

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

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

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

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

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

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

        \[\leadsto \sqrt[3]{\mathsf{neg}\left(\color{blue}{\frac{g}{a}}\right)} \]
      10. distribute-frac-neg2N/A

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

        \[\leadsto \sqrt[3]{\frac{g}{\color{blue}{\mathsf{neg}\left(a\right)}}} \]
      12. clear-numN/A

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

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

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

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

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

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

        \[\leadsto \color{blue}{{\left(\mathsf{neg}\left(a\right)\right)}^{\left(-1 \cdot \frac{1}{3}\right)}} \cdot \sqrt[3]{g} \]
      19. metadata-evalN/A

        \[\leadsto {\left(\mathsf{neg}\left(a\right)\right)}^{\color{blue}{\frac{-1}{3}}} \cdot \sqrt[3]{g} \]
      20. metadata-evalN/A

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

        \[\leadsto \color{blue}{{\left(\mathsf{neg}\left(a\right)\right)}^{\left(\mathsf{neg}\left(\frac{1}{3}\right)\right)}} \cdot \sqrt[3]{g} \]
      22. metadata-evalN/A

        \[\leadsto {\left(\mathsf{neg}\left(a\right)\right)}^{\color{blue}{\frac{-1}{3}}} \cdot \sqrt[3]{g} \]
      23. lower-cbrt.f6489.8

        \[\leadsto {\left(-a\right)}^{-0.3333333333333333} \cdot \color{blue}{\sqrt[3]{g}} \]
    10. Applied egg-rr89.8%

      \[\leadsto \color{blue}{{\left(-a\right)}^{-0.3333333333333333} \cdot \sqrt[3]{g}} \]

    if -9.99999999999999909e-308 < (*.f64 #s(literal 2 binary64) a)

    1. Initial program 37.6%

      \[\sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) - \sqrt{g \cdot g - h \cdot h}\right)} \]
    2. Add Preprocessing
    3. Taylor expanded in g around inf

      \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(\mathsf{neg}\left(g\right)\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\color{blue}{-1 \cdot \frac{g}{a}}} \]
    4. Step-by-step derivation
      1. mul-1-negN/A

        \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(\mathsf{neg}\left(g\right)\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\color{blue}{\mathsf{neg}\left(\frac{g}{a}\right)}} \]
      2. distribute-neg-frac2N/A

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

        \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(\mathsf{neg}\left(g\right)\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\color{blue}{\frac{g}{\mathsf{neg}\left(a\right)}}} \]
      4. lower-neg.f6428.0

        \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\frac{g}{\color{blue}{-a}}} \]
    5. Simplified28.0%

      \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\color{blue}{\frac{g}{-a}}} \]
    6. Taylor expanded in g around inf

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

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

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

        \[\leadsto \sqrt[3]{\color{blue}{\frac{g}{a}}} \cdot \sqrt[3]{-1} \]
      4. lower-cbrt.f6472.0

        \[\leadsto \sqrt[3]{\frac{g}{a}} \cdot \color{blue}{\sqrt[3]{-1}} \]
    8. Simplified72.0%

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

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

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

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

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

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

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

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

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

        \[\leadsto \sqrt[3]{\mathsf{neg}\left(\color{blue}{\frac{g}{a}}\right)} \]
      10. div-invN/A

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

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

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

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

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

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

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

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

        \[\leadsto \sqrt[3]{\mathsf{neg}\left(g\right)} \cdot \color{blue}{{a}^{\left(-1 \cdot \frac{1}{3}\right)}} \]
      19. metadata-evalN/A

        \[\leadsto \sqrt[3]{\mathsf{neg}\left(g\right)} \cdot {a}^{\color{blue}{\frac{-1}{3}}} \]
      20. metadata-evalN/A

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

        \[\leadsto \sqrt[3]{\mathsf{neg}\left(g\right)} \cdot \color{blue}{{a}^{\left(\mathsf{neg}\left(\frac{1}{3}\right)\right)}} \]
      22. metadata-eval89.1

        \[\leadsto \sqrt[3]{-g} \cdot {a}^{\color{blue}{-0.3333333333333333}} \]
    10. Applied egg-rr89.1%

      \[\leadsto \color{blue}{\sqrt[3]{-g} \cdot {a}^{-0.3333333333333333}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification89.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;a \cdot 2 \leq -1 \cdot 10^{-307}:\\ \;\;\;\;{\left(-a\right)}^{-0.3333333333333333} \cdot \sqrt[3]{g}\\ \mathbf{else}:\\ \;\;\;\;\sqrt[3]{-g} \cdot {a}^{-0.3333333333333333}\\ \end{array} \]
  5. Add Preprocessing

Alternative 4: 74.1% accurate, 2.4× speedup?

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

\\
\frac{1}{\sqrt[3]{-\frac{a}{g}}}
\end{array}
Derivation
  1. Initial program 40.5%

    \[\sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) - \sqrt{g \cdot g - h \cdot h}\right)} \]
  2. Add Preprocessing
  3. Taylor expanded in g around inf

    \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(\mathsf{neg}\left(g\right)\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\color{blue}{-1 \cdot \frac{g}{a}}} \]
  4. Step-by-step derivation
    1. mul-1-negN/A

      \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(\mathsf{neg}\left(g\right)\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\color{blue}{\mathsf{neg}\left(\frac{g}{a}\right)}} \]
    2. distribute-neg-frac2N/A

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

      \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(\mathsf{neg}\left(g\right)\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\color{blue}{\frac{g}{\mathsf{neg}\left(a\right)}}} \]
    4. lower-neg.f6427.6

      \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\frac{g}{\color{blue}{-a}}} \]
  5. Simplified27.6%

    \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\color{blue}{\frac{g}{-a}}} \]
  6. Taylor expanded in g around inf

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

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

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

      \[\leadsto \sqrt[3]{\color{blue}{\frac{g}{a}}} \cdot \sqrt[3]{-1} \]
    4. lower-cbrt.f6471.8

      \[\leadsto \sqrt[3]{\frac{g}{a}} \cdot \color{blue}{\sqrt[3]{-1}} \]
  8. Simplified71.8%

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

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

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

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

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

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

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

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

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

      \[\leadsto \sqrt[3]{\mathsf{neg}\left(\color{blue}{\frac{g}{a}}\right)} \]
    10. distribute-frac-neg2N/A

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

      \[\leadsto \sqrt[3]{\frac{g}{\color{blue}{\mathsf{neg}\left(a\right)}}} \]
    12. clear-numN/A

      \[\leadsto \sqrt[3]{\color{blue}{\frac{1}{\frac{\mathsf{neg}\left(a\right)}{g}}}} \]
    13. clear-numN/A

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

      \[\leadsto \color{blue}{\frac{\sqrt[3]{1}}{\sqrt[3]{\frac{\frac{\mathsf{neg}\left(a\right)}{g}}{1}}}} \]
    15. metadata-evalN/A

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

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

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

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

      \[\leadsto \frac{1}{\sqrt[3]{\frac{\frac{\color{blue}{\mathsf{neg}\left(a\right)}}{g}}{1}}} \]
    20. distribute-frac-negN/A

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

      \[\leadsto \frac{1}{\sqrt[3]{\frac{\color{blue}{\mathsf{neg}\left(\frac{a}{g}\right)}}{1}}} \]
    22. lower-/.f6472.4

      \[\leadsto \frac{1}{\sqrt[3]{\frac{-\color{blue}{\frac{a}{g}}}{1}}} \]
  10. Applied egg-rr72.4%

    \[\leadsto \color{blue}{\frac{1}{\sqrt[3]{\frac{-\frac{a}{g}}{1}}}} \]
  11. Final simplification72.4%

    \[\leadsto \frac{1}{\sqrt[3]{-\frac{a}{g}}} \]
  12. Add Preprocessing

Alternative 5: 73.2% accurate, 2.6× speedup?

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

\\
-\sqrt[3]{\frac{g}{a}}
\end{array}
Derivation
  1. Initial program 40.5%

    \[\sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) - \sqrt{g \cdot g - h \cdot h}\right)} \]
  2. Add Preprocessing
  3. Taylor expanded in g around inf

    \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(\mathsf{neg}\left(g\right)\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\color{blue}{-1 \cdot \frac{g}{a}}} \]
  4. Step-by-step derivation
    1. mul-1-negN/A

      \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(\mathsf{neg}\left(g\right)\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\color{blue}{\mathsf{neg}\left(\frac{g}{a}\right)}} \]
    2. distribute-neg-frac2N/A

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

      \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(\mathsf{neg}\left(g\right)\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\color{blue}{\frac{g}{\mathsf{neg}\left(a\right)}}} \]
    4. lower-neg.f6427.6

      \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\frac{g}{\color{blue}{-a}}} \]
  5. Simplified27.6%

    \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\color{blue}{\frac{g}{-a}}} \]
  6. Taylor expanded in g around inf

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

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

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

      \[\leadsto \sqrt[3]{\color{blue}{\frac{g}{a}}} \cdot \sqrt[3]{-1} \]
    4. lower-cbrt.f6471.8

      \[\leadsto \sqrt[3]{\frac{g}{a}} \cdot \color{blue}{\sqrt[3]{-1}} \]
  8. Simplified71.8%

    \[\leadsto \color{blue}{\sqrt[3]{\frac{g}{a}} \cdot \sqrt[3]{-1}} \]
  9. Taylor expanded in a around -inf

    \[\leadsto \color{blue}{\sqrt[3]{\frac{g}{a}} \cdot {\left(\sqrt[3]{-1}\right)}^{3}} \]
  10. Step-by-step derivation
    1. rem-cube-cbrtN/A

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

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

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

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

      \[\leadsto \mathsf{neg}\left(\color{blue}{\sqrt[3]{\frac{g}{a}}}\right) \]
    6. lower-/.f6471.8

      \[\leadsto -\sqrt[3]{\color{blue}{\frac{g}{a}}} \]
  11. Simplified71.8%

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

Alternative 6: 1.2% accurate, 2.7× speedup?

\[\begin{array}{l} \\ {\left(\frac{g}{a}\right)}^{0.3333333333333333} \end{array} \]
(FPCore (g h a) :precision binary64 (pow (/ g a) 0.3333333333333333))
double code(double g, double h, double a) {
	return pow((g / a), 0.3333333333333333);
}
real(8) function code(g, h, a)
    real(8), intent (in) :: g
    real(8), intent (in) :: h
    real(8), intent (in) :: a
    code = (g / a) ** 0.3333333333333333d0
end function
public static double code(double g, double h, double a) {
	return Math.pow((g / a), 0.3333333333333333);
}
def code(g, h, a):
	return math.pow((g / a), 0.3333333333333333)
function code(g, h, a)
	return Float64(g / a) ^ 0.3333333333333333
end
function tmp = code(g, h, a)
	tmp = (g / a) ^ 0.3333333333333333;
end
code[g_, h_, a_] := N[Power[N[(g / a), $MachinePrecision], 0.3333333333333333], $MachinePrecision]
\begin{array}{l}

\\
{\left(\frac{g}{a}\right)}^{0.3333333333333333}
\end{array}
Derivation
  1. Initial program 40.5%

    \[\sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) - \sqrt{g \cdot g - h \cdot h}\right)} \]
  2. Add Preprocessing
  3. Taylor expanded in g around inf

    \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(\mathsf{neg}\left(g\right)\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\color{blue}{-1 \cdot \frac{g}{a}}} \]
  4. Step-by-step derivation
    1. mul-1-negN/A

      \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(\mathsf{neg}\left(g\right)\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\color{blue}{\mathsf{neg}\left(\frac{g}{a}\right)}} \]
    2. distribute-neg-frac2N/A

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

      \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(\mathsf{neg}\left(g\right)\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\color{blue}{\frac{g}{\mathsf{neg}\left(a\right)}}} \]
    4. lower-neg.f6427.6

      \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\frac{g}{\color{blue}{-a}}} \]
  5. Simplified27.6%

    \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\color{blue}{\frac{g}{-a}}} \]
  6. Taylor expanded in g around inf

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

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

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

      \[\leadsto \sqrt[3]{\color{blue}{\frac{g}{a}}} \cdot \sqrt[3]{-1} \]
    4. lower-cbrt.f6471.8

      \[\leadsto \sqrt[3]{\frac{g}{a}} \cdot \color{blue}{\sqrt[3]{-1}} \]
  8. Simplified71.8%

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

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

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

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

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

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

      \[\leadsto {\left(\mathsf{neg}\left(\color{blue}{\frac{g}{a}}\right)\right)}^{\frac{1}{3}} \]
    7. distribute-frac-neg2N/A

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

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

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

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

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

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

      \[\leadsto {\left(\frac{g}{\color{blue}{\mathsf{neg}\left(a\right)}} \cdot \frac{g}{\mathsf{neg}\left(a\right)}\right)}^{\left(\frac{\frac{1}{3}}{2}\right)} \]
    14. distribute-frac-neg2N/A

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

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

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

      \[\leadsto {\left(\left(\mathsf{neg}\left(\frac{g}{a}\right)\right) \cdot \frac{g}{\color{blue}{\mathsf{neg}\left(a\right)}}\right)}^{\left(\frac{\frac{1}{3}}{2}\right)} \]
    18. distribute-frac-neg2N/A

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

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

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

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

      \[\leadsto \color{blue}{{\left(\frac{g}{a}\right)}^{\frac{1}{3}}} \]
    23. lower-pow.f641.4

      \[\leadsto \color{blue}{{\left(\frac{g}{a}\right)}^{0.3333333333333333}} \]
  10. Applied egg-rr1.4%

    \[\leadsto \color{blue}{{\left(\frac{g}{a}\right)}^{0.3333333333333333}} \]
  11. Add Preprocessing

Alternative 7: 1.4% accurate, 2.7× speedup?

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

\\
\sqrt[3]{\frac{g}{a}}
\end{array}
Derivation
  1. Initial program 40.5%

    \[\sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) - \sqrt{g \cdot g - h \cdot h}\right)} \]
  2. Add Preprocessing
  3. Taylor expanded in g around inf

    \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(\mathsf{neg}\left(g\right)\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\color{blue}{-1 \cdot \frac{g}{a}}} \]
  4. Step-by-step derivation
    1. mul-1-negN/A

      \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(\mathsf{neg}\left(g\right)\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\color{blue}{\mathsf{neg}\left(\frac{g}{a}\right)}} \]
    2. distribute-neg-frac2N/A

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

      \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(\mathsf{neg}\left(g\right)\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\color{blue}{\frac{g}{\mathsf{neg}\left(a\right)}}} \]
    4. lower-neg.f6427.6

      \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\frac{g}{\color{blue}{-a}}} \]
  5. Simplified27.6%

    \[\leadsto \sqrt[3]{\frac{1}{2 \cdot a} \cdot \left(\left(-g\right) + \sqrt{g \cdot g - h \cdot h}\right)} + \sqrt[3]{\color{blue}{\frac{g}{-a}}} \]
  6. Taylor expanded in g around inf

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

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

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

      \[\leadsto \sqrt[3]{\color{blue}{\frac{g}{a}}} \cdot \sqrt[3]{-1} \]
    4. lower-cbrt.f6471.8

      \[\leadsto \sqrt[3]{\frac{g}{a}} \cdot \color{blue}{\sqrt[3]{-1}} \]
  8. Simplified71.8%

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

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

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

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

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

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

      \[\leadsto {\left(\mathsf{neg}\left(\color{blue}{\frac{g}{a}}\right)\right)}^{\frac{1}{3}} \]
    7. distribute-frac-neg2N/A

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

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

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

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

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

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

      \[\leadsto {\left(\frac{g}{\color{blue}{\mathsf{neg}\left(a\right)}} \cdot \frac{g}{\mathsf{neg}\left(a\right)}\right)}^{\left(\frac{\frac{1}{3}}{2}\right)} \]
    14. distribute-frac-neg2N/A

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

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

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

      \[\leadsto {\left(\left(\mathsf{neg}\left(\frac{g}{a}\right)\right) \cdot \frac{g}{\color{blue}{\mathsf{neg}\left(a\right)}}\right)}^{\left(\frac{\frac{1}{3}}{2}\right)} \]
    18. distribute-frac-neg2N/A

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

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

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

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

      \[\leadsto \color{blue}{{\left(\frac{g}{a}\right)}^{\frac{1}{3}}} \]
    23. pow1/3N/A

      \[\leadsto \color{blue}{\sqrt[3]{\frac{g}{a}}} \]
    24. lift-cbrt.f641.4

      \[\leadsto \color{blue}{\sqrt[3]{\frac{g}{a}}} \]
  10. Applied egg-rr1.4%

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

Reproduce

?
herbie shell --seed 2024210 
(FPCore (g h a)
  :name "2-ancestry mixing, positive discriminant"
  :precision binary64
  (+ (cbrt (* (/ 1.0 (* 2.0 a)) (+ (- g) (sqrt (- (* g g) (* h h)))))) (cbrt (* (/ 1.0 (* 2.0 a)) (- (- g) (sqrt (- (* g g) (* h h))))))))