Diagrams.TwoD.Apollonian:descartes from diagrams-contrib-1.3.0.5

Percentage Accurate: 70.4% → 94.5%
Time: 17.6s
Alternatives: 11
Speedup: 1.0×

Specification

?
\[\begin{array}{l} \\ 2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (* 2.0 (sqrt (+ (+ (* x y) (* x z)) (* y z)))))
double code(double x, double y, double z) {
	return 2.0 * sqrt((((x * y) + (x * z)) + (y * z)));
}
real(8) function code(x, y, z)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    code = 2.0d0 * sqrt((((x * y) + (x * z)) + (y * z)))
end function
public static double code(double x, double y, double z) {
	return 2.0 * Math.sqrt((((x * y) + (x * z)) + (y * z)));
}
def code(x, y, z):
	return 2.0 * math.sqrt((((x * y) + (x * z)) + (y * z)))
function code(x, y, z)
	return Float64(2.0 * sqrt(Float64(Float64(Float64(x * y) + Float64(x * z)) + Float64(y * z))))
end
function tmp = code(x, y, z)
	tmp = 2.0 * sqrt((((x * y) + (x * z)) + (y * z)));
end
code[x_, y_, z_] := N[(2.0 * N[Sqrt[N[(N[(N[(x * y), $MachinePrecision] + N[(x * z), $MachinePrecision]), $MachinePrecision] + N[(y * z), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z}
\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 11 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: 70.4% accurate, 1.0× speedup?

\[\begin{array}{l} \\ 2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (* 2.0 (sqrt (+ (+ (* x y) (* x z)) (* y z)))))
double code(double x, double y, double z) {
	return 2.0 * sqrt((((x * y) + (x * z)) + (y * z)));
}
real(8) function code(x, y, z)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    code = 2.0d0 * sqrt((((x * y) + (x * z)) + (y * z)))
end function
public static double code(double x, double y, double z) {
	return 2.0 * Math.sqrt((((x * y) + (x * z)) + (y * z)));
}
def code(x, y, z):
	return 2.0 * math.sqrt((((x * y) + (x * z)) + (y * z)))
function code(x, y, z)
	return Float64(2.0 * sqrt(Float64(Float64(Float64(x * y) + Float64(x * z)) + Float64(y * z))))
end
function tmp = code(x, y, z)
	tmp = 2.0 * sqrt((((x * y) + (x * z)) + (y * z)));
end
code[x_, y_, z_] := N[(2.0 * N[Sqrt[N[(N[(N[(x * y), $MachinePrecision] + N[(x * z), $MachinePrecision]), $MachinePrecision] + N[(y * z), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z}
\end{array}

Alternative 1: 94.5% accurate, 0.3× speedup?

\[\begin{array}{l} [x, y, z] = \mathsf{sort}([x, y, z])\\ \\ \begin{array}{l} t_0 := 2 \cdot {\left(e^{0.25 \cdot \left(\log \left(\left(-y\right) - z\right) - \log \left(\frac{-1}{x}\right)\right)}\right)}^{2}\\ t_1 := z \cdot \left(y + x\right)\\ \mathbf{if}\;y \leq -1.02 \cdot 10^{+79}:\\ \;\;\;\;t\_0\\ \mathbf{elif}\;y \leq -6.4 \cdot 10^{-193}:\\ \;\;\;\;2 \cdot \sqrt{\mathsf{fma}\left(x, y, t\_1\right)}\\ \mathbf{elif}\;y \leq 3.3 \cdot 10^{-267}:\\ \;\;\;\;t\_0\\ \mathbf{elif}\;y \leq 8.5 \cdot 10^{-255}:\\ \;\;\;\;2 \cdot \left(\sqrt{z} \cdot \sqrt{y}\right)\\ \mathbf{elif}\;y \leq 130000000000:\\ \;\;\;\;2 \cdot \sqrt{t\_1}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \left(z \cdot \mathsf{fma}\left(0.5, y \cdot \left(x \cdot \sqrt{\frac{\frac{1}{{z}^{3}}}{y + x}}\right), \sqrt{\frac{y + x}{z}}\right)\right)\\ \end{array} \end{array} \]
NOTE: x, y, and z should be sorted in increasing order before calling this function.
(FPCore (x y z)
 :precision binary64
 (let* ((t_0
         (*
          2.0
          (pow (exp (* 0.25 (- (log (- (- y) z)) (log (/ -1.0 x))))) 2.0)))
        (t_1 (* z (+ y x))))
   (if (<= y -1.02e+79)
     t_0
     (if (<= y -6.4e-193)
       (* 2.0 (sqrt (fma x y t_1)))
       (if (<= y 3.3e-267)
         t_0
         (if (<= y 8.5e-255)
           (* 2.0 (* (sqrt z) (sqrt y)))
           (if (<= y 130000000000.0)
             (* 2.0 (sqrt t_1))
             (*
              2.0
              (*
               z
               (fma
                0.5
                (* y (* x (sqrt (/ (/ 1.0 (pow z 3.0)) (+ y x)))))
                (sqrt (/ (+ y x) z))))))))))))
assert(x < y && y < z);
double code(double x, double y, double z) {
	double t_0 = 2.0 * pow(exp((0.25 * (log((-y - z)) - log((-1.0 / x))))), 2.0);
	double t_1 = z * (y + x);
	double tmp;
	if (y <= -1.02e+79) {
		tmp = t_0;
	} else if (y <= -6.4e-193) {
		tmp = 2.0 * sqrt(fma(x, y, t_1));
	} else if (y <= 3.3e-267) {
		tmp = t_0;
	} else if (y <= 8.5e-255) {
		tmp = 2.0 * (sqrt(z) * sqrt(y));
	} else if (y <= 130000000000.0) {
		tmp = 2.0 * sqrt(t_1);
	} else {
		tmp = 2.0 * (z * fma(0.5, (y * (x * sqrt(((1.0 / pow(z, 3.0)) / (y + x))))), sqrt(((y + x) / z))));
	}
	return tmp;
}
x, y, z = sort([x, y, z])
function code(x, y, z)
	t_0 = Float64(2.0 * (exp(Float64(0.25 * Float64(log(Float64(Float64(-y) - z)) - log(Float64(-1.0 / x))))) ^ 2.0))
	t_1 = Float64(z * Float64(y + x))
	tmp = 0.0
	if (y <= -1.02e+79)
		tmp = t_0;
	elseif (y <= -6.4e-193)
		tmp = Float64(2.0 * sqrt(fma(x, y, t_1)));
	elseif (y <= 3.3e-267)
		tmp = t_0;
	elseif (y <= 8.5e-255)
		tmp = Float64(2.0 * Float64(sqrt(z) * sqrt(y)));
	elseif (y <= 130000000000.0)
		tmp = Float64(2.0 * sqrt(t_1));
	else
		tmp = Float64(2.0 * Float64(z * fma(0.5, Float64(y * Float64(x * sqrt(Float64(Float64(1.0 / (z ^ 3.0)) / Float64(y + x))))), sqrt(Float64(Float64(y + x) / z)))));
	end
	return tmp
end
NOTE: x, y, and z should be sorted in increasing order before calling this function.
code[x_, y_, z_] := Block[{t$95$0 = N[(2.0 * N[Power[N[Exp[N[(0.25 * N[(N[Log[N[((-y) - z), $MachinePrecision]], $MachinePrecision] - N[Log[N[(-1.0 / x), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]}, Block[{t$95$1 = N[(z * N[(y + x), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[y, -1.02e+79], t$95$0, If[LessEqual[y, -6.4e-193], N[(2.0 * N[Sqrt[N[(x * y + t$95$1), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 3.3e-267], t$95$0, If[LessEqual[y, 8.5e-255], N[(2.0 * N[(N[Sqrt[z], $MachinePrecision] * N[Sqrt[y], $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 130000000000.0], N[(2.0 * N[Sqrt[t$95$1], $MachinePrecision]), $MachinePrecision], N[(2.0 * N[(z * N[(0.5 * N[(y * N[(x * N[Sqrt[N[(N[(1.0 / N[Power[z, 3.0], $MachinePrecision]), $MachinePrecision] / N[(y + x), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[Sqrt[N[(N[(y + x), $MachinePrecision] / z), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]]]]]
\begin{array}{l}
[x, y, z] = \mathsf{sort}([x, y, z])\\
\\
\begin{array}{l}
t_0 := 2 \cdot {\left(e^{0.25 \cdot \left(\log \left(\left(-y\right) - z\right) - \log \left(\frac{-1}{x}\right)\right)}\right)}^{2}\\
t_1 := z \cdot \left(y + x\right)\\
\mathbf{if}\;y \leq -1.02 \cdot 10^{+79}:\\
\;\;\;\;t\_0\\

\mathbf{elif}\;y \leq -6.4 \cdot 10^{-193}:\\
\;\;\;\;2 \cdot \sqrt{\mathsf{fma}\left(x, y, t\_1\right)}\\

\mathbf{elif}\;y \leq 3.3 \cdot 10^{-267}:\\
\;\;\;\;t\_0\\

\mathbf{elif}\;y \leq 8.5 \cdot 10^{-255}:\\
\;\;\;\;2 \cdot \left(\sqrt{z} \cdot \sqrt{y}\right)\\

\mathbf{elif}\;y \leq 130000000000:\\
\;\;\;\;2 \cdot \sqrt{t\_1}\\

\mathbf{else}:\\
\;\;\;\;2 \cdot \left(z \cdot \mathsf{fma}\left(0.5, y \cdot \left(x \cdot \sqrt{\frac{\frac{1}{{z}^{3}}}{y + x}}\right), \sqrt{\frac{y + x}{z}}\right)\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 5 regimes
  2. if y < -1.02000000000000006e79 or -6.40000000000000011e-193 < y < 3.30000000000000004e-267

    1. Initial program 68.7%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. +-commutative68.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(x \cdot z + x \cdot y\right)} + y \cdot z} \]
      2. associate-+r+68.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot z + \left(x \cdot y + y \cdot z\right)}} \]
      3. *-commutative68.7%

        \[\leadsto 2 \cdot \sqrt{x \cdot z + \left(\color{blue}{y \cdot x} + y \cdot z\right)} \]
      4. +-commutative68.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(y \cdot x + y \cdot z\right) + x \cdot z}} \]
      5. associate-+l+68.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot x + \left(y \cdot z + x \cdot z\right)}} \]
      6. *-commutative68.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y} + \left(y \cdot z + x \cdot z\right)} \]
      7. distribute-rgt-in68.7%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(y + x\right)}} \]
    3. Simplified68.7%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Add Preprocessing
    5. Step-by-step derivation
      1. +-commutative68.7%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + z \cdot \color{blue}{\left(x + y\right)}} \]
      2. distribute-rgt-in68.7%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{\left(x \cdot z + y \cdot z\right)}} \]
      3. associate-+l+68.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(x \cdot y + x \cdot z\right) + y \cdot z}} \]
      4. +-commutative68.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(x \cdot z + x \cdot y\right)} + y \cdot z} \]
      5. associate-+r+68.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot z + \left(x \cdot y + y \cdot z\right)}} \]
      6. *-commutative68.7%

        \[\leadsto 2 \cdot \sqrt{x \cdot z + \left(\color{blue}{y \cdot x} + y \cdot z\right)} \]
      7. distribute-lft-in68.7%

        \[\leadsto 2 \cdot \sqrt{x \cdot z + \color{blue}{y \cdot \left(x + z\right)}} \]
      8. fma-undefine69.1%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)}} \]
      9. add-sqr-sqrt68.6%

        \[\leadsto 2 \cdot \color{blue}{\left(\sqrt{\sqrt{\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)}} \cdot \sqrt{\sqrt{\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)}}\right)} \]
      10. pow268.6%

        \[\leadsto 2 \cdot \color{blue}{{\left(\sqrt{\sqrt{\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)}}\right)}^{2}} \]
    6. Applied egg-rr68.6%

      \[\leadsto 2 \cdot \color{blue}{{\left({\left(\mathsf{fma}\left(x, y, z \cdot \left(x + y\right)\right)\right)}^{0.25}\right)}^{2}} \]
    7. Taylor expanded in x around -inf 54.2%

      \[\leadsto 2 \cdot {\color{blue}{\left(e^{0.25 \cdot \left(\log \left(-1 \cdot y + -1 \cdot z\right) + -1 \cdot \log \left(\frac{-1}{x}\right)\right)}\right)}}^{2} \]

    if -1.02000000000000006e79 < y < -6.40000000000000011e-193

    1. Initial program 84.2%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. associate-+l+84.2%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y + \left(x \cdot z + y \cdot z\right)}} \]
      2. *-commutative84.2%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot x} + \left(x \cdot z + y \cdot z\right)} \]
      3. *-commutative84.2%

        \[\leadsto 2 \cdot \sqrt{y \cdot x + \left(\color{blue}{z \cdot x} + y \cdot z\right)} \]
      4. *-commutative84.2%

        \[\leadsto 2 \cdot \sqrt{y \cdot x + \left(z \cdot x + \color{blue}{z \cdot y}\right)} \]
      5. +-commutative84.2%

        \[\leadsto 2 \cdot \sqrt{y \cdot x + \color{blue}{\left(z \cdot y + z \cdot x\right)}} \]
      6. +-commutative84.2%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(z \cdot y + z \cdot x\right) + y \cdot x}} \]
      7. associate-+l+84.2%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{z \cdot y + \left(z \cdot x + y \cdot x\right)}} \]
      8. *-commutative84.2%

        \[\leadsto 2 \cdot \sqrt{z \cdot y + \left(\color{blue}{x \cdot z} + y \cdot x\right)} \]
      9. *-commutative84.2%

        \[\leadsto 2 \cdot \sqrt{z \cdot y + \left(x \cdot z + \color{blue}{x \cdot y}\right)} \]
      10. +-commutative84.2%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(x \cdot z + x \cdot y\right) + z \cdot y}} \]
      11. +-commutative84.2%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{z \cdot y + \left(x \cdot z + x \cdot y\right)}} \]
      12. *-commutative84.2%

        \[\leadsto 2 \cdot \sqrt{z \cdot y + \left(\color{blue}{z \cdot x} + x \cdot y\right)} \]
      13. *-commutative84.2%

        \[\leadsto 2 \cdot \sqrt{z \cdot y + \left(z \cdot x + \color{blue}{y \cdot x}\right)} \]
      14. associate-+l+84.2%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(z \cdot y + z \cdot x\right) + y \cdot x}} \]
      15. +-commutative84.2%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot x + \left(z \cdot y + z \cdot x\right)}} \]
      16. *-commutative84.2%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y} + \left(z \cdot y + z \cdot x\right)} \]
      17. fma-define84.2%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\mathsf{fma}\left(x, y, z \cdot y + z \cdot x\right)}} \]
    3. Simplified84.2%

      \[\leadsto \color{blue}{2 \cdot \sqrt{\mathsf{fma}\left(x, y, z \cdot \left(x + y\right)\right)}} \]
    4. Add Preprocessing

    if 3.30000000000000004e-267 < y < 8.49999999999999982e-255

    1. Initial program 100.0%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Add Preprocessing
    3. Step-by-step derivation
      1. distribute-lft-out100.0%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot \left(y + z\right)} + y \cdot z} \]
      2. *-commutative100.0%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(y + z\right) \cdot x} + y \cdot z} \]
    4. Applied egg-rr100.0%

      \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(y + z\right) \cdot x} + y \cdot z} \]
    5. Taylor expanded in x around 0 3.7%

      \[\leadsto 2 \cdot \color{blue}{\sqrt{y \cdot z}} \]
    6. Step-by-step derivation
      1. *-commutative3.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{z \cdot y}} \]
    7. Simplified3.7%

      \[\leadsto 2 \cdot \color{blue}{\sqrt{z \cdot y}} \]
    8. Step-by-step derivation
      1. sqrt-prod3.8%

        \[\leadsto 2 \cdot \color{blue}{\left(\sqrt{z} \cdot \sqrt{y}\right)} \]
    9. Applied egg-rr3.8%

      \[\leadsto 2 \cdot \color{blue}{\left(\sqrt{z} \cdot \sqrt{y}\right)} \]

    if 8.49999999999999982e-255 < y < 1.3e11

    1. Initial program 89.4%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. +-commutative89.4%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(x \cdot z + x \cdot y\right)} + y \cdot z} \]
      2. associate-+r+89.4%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot z + \left(x \cdot y + y \cdot z\right)}} \]
      3. *-commutative89.4%

        \[\leadsto 2 \cdot \sqrt{x \cdot z + \left(\color{blue}{y \cdot x} + y \cdot z\right)} \]
      4. +-commutative89.4%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(y \cdot x + y \cdot z\right) + x \cdot z}} \]
      5. associate-+l+89.4%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot x + \left(y \cdot z + x \cdot z\right)}} \]
      6. *-commutative89.4%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y} + \left(y \cdot z + x \cdot z\right)} \]
      7. distribute-rgt-in89.4%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(y + x\right)}} \]
    3. Simplified89.4%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around inf 56.6%

      \[\leadsto 2 \cdot \color{blue}{\sqrt{z \cdot \left(x + y\right)}} \]
    6. Step-by-step derivation
      1. +-commutative56.6%

        \[\leadsto 2 \cdot \sqrt{z \cdot \color{blue}{\left(y + x\right)}} \]
    7. Simplified56.6%

      \[\leadsto 2 \cdot \color{blue}{\sqrt{z \cdot \left(y + x\right)}} \]

    if 1.3e11 < y

    1. Initial program 45.6%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. +-commutative45.6%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(x \cdot z + x \cdot y\right)} + y \cdot z} \]
      2. associate-+r+45.6%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot z + \left(x \cdot y + y \cdot z\right)}} \]
      3. *-commutative45.6%

        \[\leadsto 2 \cdot \sqrt{x \cdot z + \left(\color{blue}{y \cdot x} + y \cdot z\right)} \]
      4. +-commutative45.6%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(y \cdot x + y \cdot z\right) + x \cdot z}} \]
      5. associate-+l+45.6%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot x + \left(y \cdot z + x \cdot z\right)}} \]
      6. *-commutative45.6%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y} + \left(y \cdot z + x \cdot z\right)} \]
      7. distribute-rgt-in45.8%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(y + x\right)}} \]
    3. Simplified45.8%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around inf 22.3%

      \[\leadsto 2 \cdot \color{blue}{\left(z \cdot \left(\sqrt{\frac{x + y}{z}} + 0.5 \cdot \left(\left(x \cdot y\right) \cdot \sqrt{\frac{1}{{z}^{3} \cdot \left(x + y\right)}}\right)\right)\right)} \]
    6. Step-by-step derivation
      1. +-commutative22.3%

        \[\leadsto 2 \cdot \left(z \cdot \color{blue}{\left(0.5 \cdot \left(\left(x \cdot y\right) \cdot \sqrt{\frac{1}{{z}^{3} \cdot \left(x + y\right)}}\right) + \sqrt{\frac{x + y}{z}}\right)}\right) \]
      2. fma-define22.3%

        \[\leadsto 2 \cdot \left(z \cdot \color{blue}{\mathsf{fma}\left(0.5, \left(x \cdot y\right) \cdot \sqrt{\frac{1}{{z}^{3} \cdot \left(x + y\right)}}, \sqrt{\frac{x + y}{z}}\right)}\right) \]
      3. *-commutative22.3%

        \[\leadsto 2 \cdot \left(z \cdot \mathsf{fma}\left(0.5, \color{blue}{\left(y \cdot x\right)} \cdot \sqrt{\frac{1}{{z}^{3} \cdot \left(x + y\right)}}, \sqrt{\frac{x + y}{z}}\right)\right) \]
      4. associate-*l*28.2%

        \[\leadsto 2 \cdot \left(z \cdot \mathsf{fma}\left(0.5, \color{blue}{y \cdot \left(x \cdot \sqrt{\frac{1}{{z}^{3} \cdot \left(x + y\right)}}\right)}, \sqrt{\frac{x + y}{z}}\right)\right) \]
      5. associate-/r*28.2%

        \[\leadsto 2 \cdot \left(z \cdot \mathsf{fma}\left(0.5, y \cdot \left(x \cdot \sqrt{\color{blue}{\frac{\frac{1}{{z}^{3}}}{x + y}}}\right), \sqrt{\frac{x + y}{z}}\right)\right) \]
      6. +-commutative28.2%

        \[\leadsto 2 \cdot \left(z \cdot \mathsf{fma}\left(0.5, y \cdot \left(x \cdot \sqrt{\frac{\frac{1}{{z}^{3}}}{\color{blue}{y + x}}}\right), \sqrt{\frac{x + y}{z}}\right)\right) \]
      7. +-commutative28.2%

        \[\leadsto 2 \cdot \left(z \cdot \mathsf{fma}\left(0.5, y \cdot \left(x \cdot \sqrt{\frac{\frac{1}{{z}^{3}}}{y + x}}\right), \sqrt{\frac{\color{blue}{y + x}}{z}}\right)\right) \]
    7. Simplified28.2%

      \[\leadsto 2 \cdot \color{blue}{\left(z \cdot \mathsf{fma}\left(0.5, y \cdot \left(x \cdot \sqrt{\frac{\frac{1}{{z}^{3}}}{y + x}}\right), \sqrt{\frac{y + x}{z}}\right)\right)} \]
  3. Recombined 5 regimes into one program.
  4. Final simplification55.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1.02 \cdot 10^{+79}:\\ \;\;\;\;2 \cdot {\left(e^{0.25 \cdot \left(\log \left(\left(-y\right) - z\right) - \log \left(\frac{-1}{x}\right)\right)}\right)}^{2}\\ \mathbf{elif}\;y \leq -6.4 \cdot 10^{-193}:\\ \;\;\;\;2 \cdot \sqrt{\mathsf{fma}\left(x, y, z \cdot \left(y + x\right)\right)}\\ \mathbf{elif}\;y \leq 3.3 \cdot 10^{-267}:\\ \;\;\;\;2 \cdot {\left(e^{0.25 \cdot \left(\log \left(\left(-y\right) - z\right) - \log \left(\frac{-1}{x}\right)\right)}\right)}^{2}\\ \mathbf{elif}\;y \leq 8.5 \cdot 10^{-255}:\\ \;\;\;\;2 \cdot \left(\sqrt{z} \cdot \sqrt{y}\right)\\ \mathbf{elif}\;y \leq 130000000000:\\ \;\;\;\;2 \cdot \sqrt{z \cdot \left(y + x\right)}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \left(z \cdot \mathsf{fma}\left(0.5, y \cdot \left(x \cdot \sqrt{\frac{\frac{1}{{z}^{3}}}{y + x}}\right), \sqrt{\frac{y + x}{z}}\right)\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 2: 94.0% accurate, 0.3× speedup?

\[\begin{array}{l} [x, y, z] = \mathsf{sort}([x, y, z])\\ \\ \begin{array}{l} t_0 := 2 \cdot {\left(e^{0.25 \cdot \left(\log \left(\left(-y\right) - z\right) - \log \left(\frac{-1}{x}\right)\right)}\right)}^{2}\\ t_1 := z \cdot \left(y + x\right)\\ \mathbf{if}\;y \leq -1.02 \cdot 10^{+79}:\\ \;\;\;\;t\_0\\ \mathbf{elif}\;y \leq -6.4 \cdot 10^{-193}:\\ \;\;\;\;2 \cdot \sqrt{\mathsf{fma}\left(x, y, t\_1\right)}\\ \mathbf{elif}\;y \leq 2.2 \cdot 10^{-267}:\\ \;\;\;\;t\_0\\ \mathbf{elif}\;y \leq 8.5 \cdot 10^{-255}:\\ \;\;\;\;2 \cdot \left(\sqrt{z} \cdot \sqrt{y}\right)\\ \mathbf{elif}\;y \leq 1.65 \cdot 10^{+45}:\\ \;\;\;\;2 \cdot \sqrt{t\_1}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \left(z \cdot \left(\sqrt{\frac{y + x}{z}} + 0.5 \cdot \left(y \cdot \sqrt{\frac{x}{{z}^{3}}}\right)\right)\right)\\ \end{array} \end{array} \]
NOTE: x, y, and z should be sorted in increasing order before calling this function.
(FPCore (x y z)
 :precision binary64
 (let* ((t_0
         (*
          2.0
          (pow (exp (* 0.25 (- (log (- (- y) z)) (log (/ -1.0 x))))) 2.0)))
        (t_1 (* z (+ y x))))
   (if (<= y -1.02e+79)
     t_0
     (if (<= y -6.4e-193)
       (* 2.0 (sqrt (fma x y t_1)))
       (if (<= y 2.2e-267)
         t_0
         (if (<= y 8.5e-255)
           (* 2.0 (* (sqrt z) (sqrt y)))
           (if (<= y 1.65e+45)
             (* 2.0 (sqrt t_1))
             (*
              2.0
              (*
               z
               (+
                (sqrt (/ (+ y x) z))
                (* 0.5 (* y (sqrt (/ x (pow z 3.0)))))))))))))))
assert(x < y && y < z);
double code(double x, double y, double z) {
	double t_0 = 2.0 * pow(exp((0.25 * (log((-y - z)) - log((-1.0 / x))))), 2.0);
	double t_1 = z * (y + x);
	double tmp;
	if (y <= -1.02e+79) {
		tmp = t_0;
	} else if (y <= -6.4e-193) {
		tmp = 2.0 * sqrt(fma(x, y, t_1));
	} else if (y <= 2.2e-267) {
		tmp = t_0;
	} else if (y <= 8.5e-255) {
		tmp = 2.0 * (sqrt(z) * sqrt(y));
	} else if (y <= 1.65e+45) {
		tmp = 2.0 * sqrt(t_1);
	} else {
		tmp = 2.0 * (z * (sqrt(((y + x) / z)) + (0.5 * (y * sqrt((x / pow(z, 3.0)))))));
	}
	return tmp;
}
x, y, z = sort([x, y, z])
function code(x, y, z)
	t_0 = Float64(2.0 * (exp(Float64(0.25 * Float64(log(Float64(Float64(-y) - z)) - log(Float64(-1.0 / x))))) ^ 2.0))
	t_1 = Float64(z * Float64(y + x))
	tmp = 0.0
	if (y <= -1.02e+79)
		tmp = t_0;
	elseif (y <= -6.4e-193)
		tmp = Float64(2.0 * sqrt(fma(x, y, t_1)));
	elseif (y <= 2.2e-267)
		tmp = t_0;
	elseif (y <= 8.5e-255)
		tmp = Float64(2.0 * Float64(sqrt(z) * sqrt(y)));
	elseif (y <= 1.65e+45)
		tmp = Float64(2.0 * sqrt(t_1));
	else
		tmp = Float64(2.0 * Float64(z * Float64(sqrt(Float64(Float64(y + x) / z)) + Float64(0.5 * Float64(y * sqrt(Float64(x / (z ^ 3.0))))))));
	end
	return tmp
end
NOTE: x, y, and z should be sorted in increasing order before calling this function.
code[x_, y_, z_] := Block[{t$95$0 = N[(2.0 * N[Power[N[Exp[N[(0.25 * N[(N[Log[N[((-y) - z), $MachinePrecision]], $MachinePrecision] - N[Log[N[(-1.0 / x), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]}, Block[{t$95$1 = N[(z * N[(y + x), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[y, -1.02e+79], t$95$0, If[LessEqual[y, -6.4e-193], N[(2.0 * N[Sqrt[N[(x * y + t$95$1), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 2.2e-267], t$95$0, If[LessEqual[y, 8.5e-255], N[(2.0 * N[(N[Sqrt[z], $MachinePrecision] * N[Sqrt[y], $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 1.65e+45], N[(2.0 * N[Sqrt[t$95$1], $MachinePrecision]), $MachinePrecision], N[(2.0 * N[(z * N[(N[Sqrt[N[(N[(y + x), $MachinePrecision] / z), $MachinePrecision]], $MachinePrecision] + N[(0.5 * N[(y * N[Sqrt[N[(x / N[Power[z, 3.0], $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]]]]]
\begin{array}{l}
[x, y, z] = \mathsf{sort}([x, y, z])\\
\\
\begin{array}{l}
t_0 := 2 \cdot {\left(e^{0.25 \cdot \left(\log \left(\left(-y\right) - z\right) - \log \left(\frac{-1}{x}\right)\right)}\right)}^{2}\\
t_1 := z \cdot \left(y + x\right)\\
\mathbf{if}\;y \leq -1.02 \cdot 10^{+79}:\\
\;\;\;\;t\_0\\

\mathbf{elif}\;y \leq -6.4 \cdot 10^{-193}:\\
\;\;\;\;2 \cdot \sqrt{\mathsf{fma}\left(x, y, t\_1\right)}\\

\mathbf{elif}\;y \leq 2.2 \cdot 10^{-267}:\\
\;\;\;\;t\_0\\

\mathbf{elif}\;y \leq 8.5 \cdot 10^{-255}:\\
\;\;\;\;2 \cdot \left(\sqrt{z} \cdot \sqrt{y}\right)\\

\mathbf{elif}\;y \leq 1.65 \cdot 10^{+45}:\\
\;\;\;\;2 \cdot \sqrt{t\_1}\\

\mathbf{else}:\\
\;\;\;\;2 \cdot \left(z \cdot \left(\sqrt{\frac{y + x}{z}} + 0.5 \cdot \left(y \cdot \sqrt{\frac{x}{{z}^{3}}}\right)\right)\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 5 regimes
  2. if y < -1.02000000000000006e79 or -6.40000000000000011e-193 < y < 2.19999999999999988e-267

    1. Initial program 68.7%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. +-commutative68.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(x \cdot z + x \cdot y\right)} + y \cdot z} \]
      2. associate-+r+68.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot z + \left(x \cdot y + y \cdot z\right)}} \]
      3. *-commutative68.7%

        \[\leadsto 2 \cdot \sqrt{x \cdot z + \left(\color{blue}{y \cdot x} + y \cdot z\right)} \]
      4. +-commutative68.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(y \cdot x + y \cdot z\right) + x \cdot z}} \]
      5. associate-+l+68.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot x + \left(y \cdot z + x \cdot z\right)}} \]
      6. *-commutative68.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y} + \left(y \cdot z + x \cdot z\right)} \]
      7. distribute-rgt-in68.7%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(y + x\right)}} \]
    3. Simplified68.7%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Add Preprocessing
    5. Step-by-step derivation
      1. +-commutative68.7%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + z \cdot \color{blue}{\left(x + y\right)}} \]
      2. distribute-rgt-in68.7%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{\left(x \cdot z + y \cdot z\right)}} \]
      3. associate-+l+68.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(x \cdot y + x \cdot z\right) + y \cdot z}} \]
      4. +-commutative68.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(x \cdot z + x \cdot y\right)} + y \cdot z} \]
      5. associate-+r+68.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot z + \left(x \cdot y + y \cdot z\right)}} \]
      6. *-commutative68.7%

        \[\leadsto 2 \cdot \sqrt{x \cdot z + \left(\color{blue}{y \cdot x} + y \cdot z\right)} \]
      7. distribute-lft-in68.7%

        \[\leadsto 2 \cdot \sqrt{x \cdot z + \color{blue}{y \cdot \left(x + z\right)}} \]
      8. fma-undefine69.1%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)}} \]
      9. add-sqr-sqrt68.6%

        \[\leadsto 2 \cdot \color{blue}{\left(\sqrt{\sqrt{\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)}} \cdot \sqrt{\sqrt{\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)}}\right)} \]
      10. pow268.6%

        \[\leadsto 2 \cdot \color{blue}{{\left(\sqrt{\sqrt{\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)}}\right)}^{2}} \]
    6. Applied egg-rr68.6%

      \[\leadsto 2 \cdot \color{blue}{{\left({\left(\mathsf{fma}\left(x, y, z \cdot \left(x + y\right)\right)\right)}^{0.25}\right)}^{2}} \]
    7. Taylor expanded in x around -inf 54.2%

      \[\leadsto 2 \cdot {\color{blue}{\left(e^{0.25 \cdot \left(\log \left(-1 \cdot y + -1 \cdot z\right) + -1 \cdot \log \left(\frac{-1}{x}\right)\right)}\right)}}^{2} \]

    if -1.02000000000000006e79 < y < -6.40000000000000011e-193

    1. Initial program 84.2%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. associate-+l+84.2%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y + \left(x \cdot z + y \cdot z\right)}} \]
      2. *-commutative84.2%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot x} + \left(x \cdot z + y \cdot z\right)} \]
      3. *-commutative84.2%

        \[\leadsto 2 \cdot \sqrt{y \cdot x + \left(\color{blue}{z \cdot x} + y \cdot z\right)} \]
      4. *-commutative84.2%

        \[\leadsto 2 \cdot \sqrt{y \cdot x + \left(z \cdot x + \color{blue}{z \cdot y}\right)} \]
      5. +-commutative84.2%

        \[\leadsto 2 \cdot \sqrt{y \cdot x + \color{blue}{\left(z \cdot y + z \cdot x\right)}} \]
      6. +-commutative84.2%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(z \cdot y + z \cdot x\right) + y \cdot x}} \]
      7. associate-+l+84.2%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{z \cdot y + \left(z \cdot x + y \cdot x\right)}} \]
      8. *-commutative84.2%

        \[\leadsto 2 \cdot \sqrt{z \cdot y + \left(\color{blue}{x \cdot z} + y \cdot x\right)} \]
      9. *-commutative84.2%

        \[\leadsto 2 \cdot \sqrt{z \cdot y + \left(x \cdot z + \color{blue}{x \cdot y}\right)} \]
      10. +-commutative84.2%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(x \cdot z + x \cdot y\right) + z \cdot y}} \]
      11. +-commutative84.2%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{z \cdot y + \left(x \cdot z + x \cdot y\right)}} \]
      12. *-commutative84.2%

        \[\leadsto 2 \cdot \sqrt{z \cdot y + \left(\color{blue}{z \cdot x} + x \cdot y\right)} \]
      13. *-commutative84.2%

        \[\leadsto 2 \cdot \sqrt{z \cdot y + \left(z \cdot x + \color{blue}{y \cdot x}\right)} \]
      14. associate-+l+84.2%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(z \cdot y + z \cdot x\right) + y \cdot x}} \]
      15. +-commutative84.2%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot x + \left(z \cdot y + z \cdot x\right)}} \]
      16. *-commutative84.2%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y} + \left(z \cdot y + z \cdot x\right)} \]
      17. fma-define84.2%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\mathsf{fma}\left(x, y, z \cdot y + z \cdot x\right)}} \]
    3. Simplified84.2%

      \[\leadsto \color{blue}{2 \cdot \sqrt{\mathsf{fma}\left(x, y, z \cdot \left(x + y\right)\right)}} \]
    4. Add Preprocessing

    if 2.19999999999999988e-267 < y < 8.49999999999999982e-255

    1. Initial program 100.0%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Add Preprocessing
    3. Step-by-step derivation
      1. distribute-lft-out100.0%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot \left(y + z\right)} + y \cdot z} \]
      2. *-commutative100.0%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(y + z\right) \cdot x} + y \cdot z} \]
    4. Applied egg-rr100.0%

      \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(y + z\right) \cdot x} + y \cdot z} \]
    5. Taylor expanded in x around 0 3.7%

      \[\leadsto 2 \cdot \color{blue}{\sqrt{y \cdot z}} \]
    6. Step-by-step derivation
      1. *-commutative3.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{z \cdot y}} \]
    7. Simplified3.7%

      \[\leadsto 2 \cdot \color{blue}{\sqrt{z \cdot y}} \]
    8. Step-by-step derivation
      1. sqrt-prod3.8%

        \[\leadsto 2 \cdot \color{blue}{\left(\sqrt{z} \cdot \sqrt{y}\right)} \]
    9. Applied egg-rr3.8%

      \[\leadsto 2 \cdot \color{blue}{\left(\sqrt{z} \cdot \sqrt{y}\right)} \]

    if 8.49999999999999982e-255 < y < 1.65e45

    1. Initial program 90.6%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. +-commutative90.6%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(x \cdot z + x \cdot y\right)} + y \cdot z} \]
      2. associate-+r+90.6%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot z + \left(x \cdot y + y \cdot z\right)}} \]
      3. *-commutative90.6%

        \[\leadsto 2 \cdot \sqrt{x \cdot z + \left(\color{blue}{y \cdot x} + y \cdot z\right)} \]
      4. +-commutative90.6%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(y \cdot x + y \cdot z\right) + x \cdot z}} \]
      5. associate-+l+90.6%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot x + \left(y \cdot z + x \cdot z\right)}} \]
      6. *-commutative90.6%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y} + \left(y \cdot z + x \cdot z\right)} \]
      7. distribute-rgt-in90.6%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(y + x\right)}} \]
    3. Simplified90.6%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around inf 52.3%

      \[\leadsto 2 \cdot \color{blue}{\sqrt{z \cdot \left(x + y\right)}} \]
    6. Step-by-step derivation
      1. +-commutative52.3%

        \[\leadsto 2 \cdot \sqrt{z \cdot \color{blue}{\left(y + x\right)}} \]
    7. Simplified52.3%

      \[\leadsto 2 \cdot \color{blue}{\sqrt{z \cdot \left(y + x\right)}} \]

    if 1.65e45 < y

    1. Initial program 38.8%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. +-commutative38.8%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(x \cdot z + x \cdot y\right)} + y \cdot z} \]
      2. associate-+r+38.8%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot z + \left(x \cdot y + y \cdot z\right)}} \]
      3. *-commutative38.8%

        \[\leadsto 2 \cdot \sqrt{x \cdot z + \left(\color{blue}{y \cdot x} + y \cdot z\right)} \]
      4. +-commutative38.8%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(y \cdot x + y \cdot z\right) + x \cdot z}} \]
      5. associate-+l+38.8%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot x + \left(y \cdot z + x \cdot z\right)}} \]
      6. *-commutative38.8%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y} + \left(y \cdot z + x \cdot z\right)} \]
      7. distribute-rgt-in39.0%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(y + x\right)}} \]
    3. Simplified39.0%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around inf 24.6%

      \[\leadsto 2 \cdot \color{blue}{\left(z \cdot \left(\sqrt{\frac{x + y}{z}} + 0.5 \cdot \left(\left(x \cdot y\right) \cdot \sqrt{\frac{1}{{z}^{3} \cdot \left(x + y\right)}}\right)\right)\right)} \]
    6. Step-by-step derivation
      1. +-commutative24.6%

        \[\leadsto 2 \cdot \left(z \cdot \left(\sqrt{\frac{\color{blue}{y + x}}{z}} + 0.5 \cdot \left(\left(x \cdot y\right) \cdot \sqrt{\frac{1}{{z}^{3} \cdot \left(x + y\right)}}\right)\right)\right) \]
      2. *-commutative24.6%

        \[\leadsto 2 \cdot \left(z \cdot \left(\sqrt{\frac{y + x}{z}} + 0.5 \cdot \left(\color{blue}{\left(y \cdot x\right)} \cdot \sqrt{\frac{1}{{z}^{3} \cdot \left(x + y\right)}}\right)\right)\right) \]
      3. associate-/r*24.6%

        \[\leadsto 2 \cdot \left(z \cdot \left(\sqrt{\frac{y + x}{z}} + 0.5 \cdot \left(\left(y \cdot x\right) \cdot \sqrt{\color{blue}{\frac{\frac{1}{{z}^{3}}}{x + y}}}\right)\right)\right) \]
      4. +-commutative24.6%

        \[\leadsto 2 \cdot \left(z \cdot \left(\sqrt{\frac{y + x}{z}} + 0.5 \cdot \left(\left(y \cdot x\right) \cdot \sqrt{\frac{\frac{1}{{z}^{3}}}{\color{blue}{y + x}}}\right)\right)\right) \]
    7. Simplified24.6%

      \[\leadsto 2 \cdot \color{blue}{\left(z \cdot \left(\sqrt{\frac{y + x}{z}} + 0.5 \cdot \left(\left(y \cdot x\right) \cdot \sqrt{\frac{\frac{1}{{z}^{3}}}{y + x}}\right)\right)\right)} \]
    8. Taylor expanded in y around 0 27.7%

      \[\leadsto 2 \cdot \left(z \cdot \left(\sqrt{\frac{y + x}{z}} + 0.5 \cdot \color{blue}{\left(\sqrt{\frac{x}{{z}^{3}}} \cdot y\right)}\right)\right) \]
  3. Recombined 5 regimes into one program.
  4. Final simplification55.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1.02 \cdot 10^{+79}:\\ \;\;\;\;2 \cdot {\left(e^{0.25 \cdot \left(\log \left(\left(-y\right) - z\right) - \log \left(\frac{-1}{x}\right)\right)}\right)}^{2}\\ \mathbf{elif}\;y \leq -6.4 \cdot 10^{-193}:\\ \;\;\;\;2 \cdot \sqrt{\mathsf{fma}\left(x, y, z \cdot \left(y + x\right)\right)}\\ \mathbf{elif}\;y \leq 2.2 \cdot 10^{-267}:\\ \;\;\;\;2 \cdot {\left(e^{0.25 \cdot \left(\log \left(\left(-y\right) - z\right) - \log \left(\frac{-1}{x}\right)\right)}\right)}^{2}\\ \mathbf{elif}\;y \leq 8.5 \cdot 10^{-255}:\\ \;\;\;\;2 \cdot \left(\sqrt{z} \cdot \sqrt{y}\right)\\ \mathbf{elif}\;y \leq 1.65 \cdot 10^{+45}:\\ \;\;\;\;2 \cdot \sqrt{z \cdot \left(y + x\right)}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \left(z \cdot \left(\sqrt{\frac{y + x}{z}} + 0.5 \cdot \left(y \cdot \sqrt{\frac{x}{{z}^{3}}}\right)\right)\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 3: 93.2% accurate, 0.3× speedup?

\[\begin{array}{l} [x, y, z] = \mathsf{sort}([x, y, z])\\ \\ \begin{array}{l} \mathbf{if}\;y \leq -1.02 \cdot 10^{+79}:\\ \;\;\;\;2 \cdot {\left(e^{0.25 \cdot \left(\log \left(-y\right) - \log \left(\frac{-1}{x}\right)\right)}\right)}^{2}\\ \mathbf{elif}\;y \leq 5.1 \cdot 10^{+47}:\\ \;\;\;\;2 \cdot \sqrt{\mathsf{fma}\left(x, y, z \cdot \left(y + x\right)\right)}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \left(z \cdot \left(\sqrt{\frac{y + x}{z}} + 0.5 \cdot \left(y \cdot \sqrt{\frac{x}{{z}^{3}}}\right)\right)\right)\\ \end{array} \end{array} \]
NOTE: x, y, and z should be sorted in increasing order before calling this function.
(FPCore (x y z)
 :precision binary64
 (if (<= y -1.02e+79)
   (* 2.0 (pow (exp (* 0.25 (- (log (- y)) (log (/ -1.0 x))))) 2.0))
   (if (<= y 5.1e+47)
     (* 2.0 (sqrt (fma x y (* z (+ y x)))))
     (*
      2.0
      (* z (+ (sqrt (/ (+ y x) z)) (* 0.5 (* y (sqrt (/ x (pow z 3.0)))))))))))
assert(x < y && y < z);
double code(double x, double y, double z) {
	double tmp;
	if (y <= -1.02e+79) {
		tmp = 2.0 * pow(exp((0.25 * (log(-y) - log((-1.0 / x))))), 2.0);
	} else if (y <= 5.1e+47) {
		tmp = 2.0 * sqrt(fma(x, y, (z * (y + x))));
	} else {
		tmp = 2.0 * (z * (sqrt(((y + x) / z)) + (0.5 * (y * sqrt((x / pow(z, 3.0)))))));
	}
	return tmp;
}
x, y, z = sort([x, y, z])
function code(x, y, z)
	tmp = 0.0
	if (y <= -1.02e+79)
		tmp = Float64(2.0 * (exp(Float64(0.25 * Float64(log(Float64(-y)) - log(Float64(-1.0 / x))))) ^ 2.0));
	elseif (y <= 5.1e+47)
		tmp = Float64(2.0 * sqrt(fma(x, y, Float64(z * Float64(y + x)))));
	else
		tmp = Float64(2.0 * Float64(z * Float64(sqrt(Float64(Float64(y + x) / z)) + Float64(0.5 * Float64(y * sqrt(Float64(x / (z ^ 3.0))))))));
	end
	return tmp
end
NOTE: x, y, and z should be sorted in increasing order before calling this function.
code[x_, y_, z_] := If[LessEqual[y, -1.02e+79], N[(2.0 * N[Power[N[Exp[N[(0.25 * N[(N[Log[(-y)], $MachinePrecision] - N[Log[N[(-1.0 / x), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 5.1e+47], N[(2.0 * N[Sqrt[N[(x * y + N[(z * N[(y + x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], N[(2.0 * N[(z * N[(N[Sqrt[N[(N[(y + x), $MachinePrecision] / z), $MachinePrecision]], $MachinePrecision] + N[(0.5 * N[(y * N[Sqrt[N[(x / N[Power[z, 3.0], $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
[x, y, z] = \mathsf{sort}([x, y, z])\\
\\
\begin{array}{l}
\mathbf{if}\;y \leq -1.02 \cdot 10^{+79}:\\
\;\;\;\;2 \cdot {\left(e^{0.25 \cdot \left(\log \left(-y\right) - \log \left(\frac{-1}{x}\right)\right)}\right)}^{2}\\

\mathbf{elif}\;y \leq 5.1 \cdot 10^{+47}:\\
\;\;\;\;2 \cdot \sqrt{\mathsf{fma}\left(x, y, z \cdot \left(y + x\right)\right)}\\

\mathbf{else}:\\
\;\;\;\;2 \cdot \left(z \cdot \left(\sqrt{\frac{y + x}{z}} + 0.5 \cdot \left(y \cdot \sqrt{\frac{x}{{z}^{3}}}\right)\right)\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -1.02000000000000006e79

    1. Initial program 59.4%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. +-commutative59.4%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(x \cdot z + x \cdot y\right)} + y \cdot z} \]
      2. associate-+r+59.4%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot z + \left(x \cdot y + y \cdot z\right)}} \]
      3. *-commutative59.4%

        \[\leadsto 2 \cdot \sqrt{x \cdot z + \left(\color{blue}{y \cdot x} + y \cdot z\right)} \]
      4. +-commutative59.4%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(y \cdot x + y \cdot z\right) + x \cdot z}} \]
      5. associate-+l+59.4%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot x + \left(y \cdot z + x \cdot z\right)}} \]
      6. *-commutative59.4%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y} + \left(y \cdot z + x \cdot z\right)} \]
      7. distribute-rgt-in59.4%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(y + x\right)}} \]
    3. Simplified59.4%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 37.9%

      \[\leadsto 2 \cdot \color{blue}{\sqrt{x \cdot y}} \]
    6. Step-by-step derivation
      1. *-commutative37.9%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot x}} \]
    7. Simplified37.9%

      \[\leadsto 2 \cdot \color{blue}{\sqrt{y \cdot x}} \]
    8. Step-by-step derivation
      1. add-sqr-sqrt37.7%

        \[\leadsto 2 \cdot \color{blue}{\left(\sqrt{\sqrt{y \cdot x}} \cdot \sqrt{\sqrt{y \cdot x}}\right)} \]
      2. pow237.7%

        \[\leadsto 2 \cdot \color{blue}{{\left(\sqrt{\sqrt{y \cdot x}}\right)}^{2}} \]
      3. pow1/237.7%

        \[\leadsto 2 \cdot {\left(\sqrt{\color{blue}{{\left(y \cdot x\right)}^{0.5}}}\right)}^{2} \]
      4. sqrt-pow137.7%

        \[\leadsto 2 \cdot {\color{blue}{\left({\left(y \cdot x\right)}^{\left(\frac{0.5}{2}\right)}\right)}}^{2} \]
      5. metadata-eval37.7%

        \[\leadsto 2 \cdot {\left({\left(y \cdot x\right)}^{\color{blue}{0.25}}\right)}^{2} \]
    9. Applied egg-rr37.7%

      \[\leadsto 2 \cdot \color{blue}{{\left({\left(y \cdot x\right)}^{0.25}\right)}^{2}} \]
    10. Taylor expanded in x around -inf 58.2%

      \[\leadsto 2 \cdot {\color{blue}{\left(e^{0.25 \cdot \left(\log \left(-1 \cdot y\right) + -1 \cdot \log \left(\frac{-1}{x}\right)\right)}\right)}}^{2} \]

    if -1.02000000000000006e79 < y < 5.1000000000000001e47

    1. Initial program 86.4%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. associate-+l+86.4%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y + \left(x \cdot z + y \cdot z\right)}} \]
      2. *-commutative86.4%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot x} + \left(x \cdot z + y \cdot z\right)} \]
      3. *-commutative86.4%

        \[\leadsto 2 \cdot \sqrt{y \cdot x + \left(\color{blue}{z \cdot x} + y \cdot z\right)} \]
      4. *-commutative86.4%

        \[\leadsto 2 \cdot \sqrt{y \cdot x + \left(z \cdot x + \color{blue}{z \cdot y}\right)} \]
      5. +-commutative86.4%

        \[\leadsto 2 \cdot \sqrt{y \cdot x + \color{blue}{\left(z \cdot y + z \cdot x\right)}} \]
      6. +-commutative86.4%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(z \cdot y + z \cdot x\right) + y \cdot x}} \]
      7. associate-+l+86.4%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{z \cdot y + \left(z \cdot x + y \cdot x\right)}} \]
      8. *-commutative86.4%

        \[\leadsto 2 \cdot \sqrt{z \cdot y + \left(\color{blue}{x \cdot z} + y \cdot x\right)} \]
      9. *-commutative86.4%

        \[\leadsto 2 \cdot \sqrt{z \cdot y + \left(x \cdot z + \color{blue}{x \cdot y}\right)} \]
      10. +-commutative86.4%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(x \cdot z + x \cdot y\right) + z \cdot y}} \]
      11. +-commutative86.4%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{z \cdot y + \left(x \cdot z + x \cdot y\right)}} \]
      12. *-commutative86.4%

        \[\leadsto 2 \cdot \sqrt{z \cdot y + \left(\color{blue}{z \cdot x} + x \cdot y\right)} \]
      13. *-commutative86.4%

        \[\leadsto 2 \cdot \sqrt{z \cdot y + \left(z \cdot x + \color{blue}{y \cdot x}\right)} \]
      14. associate-+l+86.4%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(z \cdot y + z \cdot x\right) + y \cdot x}} \]
      15. +-commutative86.4%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot x + \left(z \cdot y + z \cdot x\right)}} \]
      16. *-commutative86.4%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y} + \left(z \cdot y + z \cdot x\right)} \]
      17. fma-define86.4%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\mathsf{fma}\left(x, y, z \cdot y + z \cdot x\right)}} \]
    3. Simplified86.4%

      \[\leadsto \color{blue}{2 \cdot \sqrt{\mathsf{fma}\left(x, y, z \cdot \left(x + y\right)\right)}} \]
    4. Add Preprocessing

    if 5.1000000000000001e47 < y

    1. Initial program 38.8%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. +-commutative38.8%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(x \cdot z + x \cdot y\right)} + y \cdot z} \]
      2. associate-+r+38.8%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot z + \left(x \cdot y + y \cdot z\right)}} \]
      3. *-commutative38.8%

        \[\leadsto 2 \cdot \sqrt{x \cdot z + \left(\color{blue}{y \cdot x} + y \cdot z\right)} \]
      4. +-commutative38.8%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(y \cdot x + y \cdot z\right) + x \cdot z}} \]
      5. associate-+l+38.8%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot x + \left(y \cdot z + x \cdot z\right)}} \]
      6. *-commutative38.8%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y} + \left(y \cdot z + x \cdot z\right)} \]
      7. distribute-rgt-in39.0%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(y + x\right)}} \]
    3. Simplified39.0%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around inf 24.6%

      \[\leadsto 2 \cdot \color{blue}{\left(z \cdot \left(\sqrt{\frac{x + y}{z}} + 0.5 \cdot \left(\left(x \cdot y\right) \cdot \sqrt{\frac{1}{{z}^{3} \cdot \left(x + y\right)}}\right)\right)\right)} \]
    6. Step-by-step derivation
      1. +-commutative24.6%

        \[\leadsto 2 \cdot \left(z \cdot \left(\sqrt{\frac{\color{blue}{y + x}}{z}} + 0.5 \cdot \left(\left(x \cdot y\right) \cdot \sqrt{\frac{1}{{z}^{3} \cdot \left(x + y\right)}}\right)\right)\right) \]
      2. *-commutative24.6%

        \[\leadsto 2 \cdot \left(z \cdot \left(\sqrt{\frac{y + x}{z}} + 0.5 \cdot \left(\color{blue}{\left(y \cdot x\right)} \cdot \sqrt{\frac{1}{{z}^{3} \cdot \left(x + y\right)}}\right)\right)\right) \]
      3. associate-/r*24.6%

        \[\leadsto 2 \cdot \left(z \cdot \left(\sqrt{\frac{y + x}{z}} + 0.5 \cdot \left(\left(y \cdot x\right) \cdot \sqrt{\color{blue}{\frac{\frac{1}{{z}^{3}}}{x + y}}}\right)\right)\right) \]
      4. +-commutative24.6%

        \[\leadsto 2 \cdot \left(z \cdot \left(\sqrt{\frac{y + x}{z}} + 0.5 \cdot \left(\left(y \cdot x\right) \cdot \sqrt{\frac{\frac{1}{{z}^{3}}}{\color{blue}{y + x}}}\right)\right)\right) \]
    7. Simplified24.6%

      \[\leadsto 2 \cdot \color{blue}{\left(z \cdot \left(\sqrt{\frac{y + x}{z}} + 0.5 \cdot \left(\left(y \cdot x\right) \cdot \sqrt{\frac{\frac{1}{{z}^{3}}}{y + x}}\right)\right)\right)} \]
    8. Taylor expanded in y around 0 27.7%

      \[\leadsto 2 \cdot \left(z \cdot \left(\sqrt{\frac{y + x}{z}} + 0.5 \cdot \color{blue}{\left(\sqrt{\frac{x}{{z}^{3}}} \cdot y\right)}\right)\right) \]
  3. Recombined 3 regimes into one program.
  4. Final simplification69.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1.02 \cdot 10^{+79}:\\ \;\;\;\;2 \cdot {\left(e^{0.25 \cdot \left(\log \left(-y\right) - \log \left(\frac{-1}{x}\right)\right)}\right)}^{2}\\ \mathbf{elif}\;y \leq 5.1 \cdot 10^{+47}:\\ \;\;\;\;2 \cdot \sqrt{\mathsf{fma}\left(x, y, z \cdot \left(y + x\right)\right)}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \left(z \cdot \left(\sqrt{\frac{y + x}{z}} + 0.5 \cdot \left(y \cdot \sqrt{\frac{x}{{z}^{3}}}\right)\right)\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 4: 83.1% accurate, 0.3× speedup?

\[\begin{array}{l} [x, y, z] = \mathsf{sort}([x, y, z])\\ \\ \begin{array}{l} \mathbf{if}\;y \leq 3.7 \cdot 10^{+46}:\\ \;\;\;\;2 \cdot \sqrt{\mathsf{fma}\left(x, z, y \cdot \left(z + x\right)\right)}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \left(z \cdot \left(\sqrt{\frac{y + x}{z}} + 0.5 \cdot \left(y \cdot \sqrt{\frac{x}{{z}^{3}}}\right)\right)\right)\\ \end{array} \end{array} \]
NOTE: x, y, and z should be sorted in increasing order before calling this function.
(FPCore (x y z)
 :precision binary64
 (if (<= y 3.7e+46)
   (* 2.0 (sqrt (fma x z (* y (+ z x)))))
   (*
    2.0
    (* z (+ (sqrt (/ (+ y x) z)) (* 0.5 (* y (sqrt (/ x (pow z 3.0))))))))))
assert(x < y && y < z);
double code(double x, double y, double z) {
	double tmp;
	if (y <= 3.7e+46) {
		tmp = 2.0 * sqrt(fma(x, z, (y * (z + x))));
	} else {
		tmp = 2.0 * (z * (sqrt(((y + x) / z)) + (0.5 * (y * sqrt((x / pow(z, 3.0)))))));
	}
	return tmp;
}
x, y, z = sort([x, y, z])
function code(x, y, z)
	tmp = 0.0
	if (y <= 3.7e+46)
		tmp = Float64(2.0 * sqrt(fma(x, z, Float64(y * Float64(z + x)))));
	else
		tmp = Float64(2.0 * Float64(z * Float64(sqrt(Float64(Float64(y + x) / z)) + Float64(0.5 * Float64(y * sqrt(Float64(x / (z ^ 3.0))))))));
	end
	return tmp
end
NOTE: x, y, and z should be sorted in increasing order before calling this function.
code[x_, y_, z_] := If[LessEqual[y, 3.7e+46], N[(2.0 * N[Sqrt[N[(x * z + N[(y * N[(z + x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], N[(2.0 * N[(z * N[(N[Sqrt[N[(N[(y + x), $MachinePrecision] / z), $MachinePrecision]], $MachinePrecision] + N[(0.5 * N[(y * N[Sqrt[N[(x / N[Power[z, 3.0], $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
[x, y, z] = \mathsf{sort}([x, y, z])\\
\\
\begin{array}{l}
\mathbf{if}\;y \leq 3.7 \cdot 10^{+46}:\\
\;\;\;\;2 \cdot \sqrt{\mathsf{fma}\left(x, z, y \cdot \left(z + x\right)\right)}\\

\mathbf{else}:\\
\;\;\;\;2 \cdot \left(z \cdot \left(\sqrt{\frac{y + x}{z}} + 0.5 \cdot \left(y \cdot \sqrt{\frac{x}{{z}^{3}}}\right)\right)\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < 3.6999999999999999e46

    1. Initial program 81.0%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. associate-+l+81.0%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y + \left(x \cdot z + y \cdot z\right)}} \]
      2. *-commutative81.0%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot x} + \left(x \cdot z + y \cdot z\right)} \]
      3. *-commutative81.0%

        \[\leadsto 2 \cdot \sqrt{y \cdot x + \left(\color{blue}{z \cdot x} + y \cdot z\right)} \]
      4. *-commutative81.0%

        \[\leadsto 2 \cdot \sqrt{y \cdot x + \left(z \cdot x + \color{blue}{z \cdot y}\right)} \]
      5. +-commutative81.0%

        \[\leadsto 2 \cdot \sqrt{y \cdot x + \color{blue}{\left(z \cdot y + z \cdot x\right)}} \]
      6. +-commutative81.0%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(z \cdot y + z \cdot x\right) + y \cdot x}} \]
      7. +-commutative81.0%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot x + \left(z \cdot y + z \cdot x\right)}} \]
      8. *-commutative81.0%

        \[\leadsto 2 \cdot \sqrt{y \cdot x + \left(\color{blue}{y \cdot z} + z \cdot x\right)} \]
      9. *-commutative81.0%

        \[\leadsto 2 \cdot \sqrt{y \cdot x + \left(y \cdot z + \color{blue}{x \cdot z}\right)} \]
      10. associate-+l+81.0%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(y \cdot x + y \cdot z\right) + x \cdot z}} \]
      11. +-commutative81.0%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot z + \left(y \cdot x + y \cdot z\right)}} \]
      12. fma-define81.1%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\mathsf{fma}\left(x, z, y \cdot x + y \cdot z\right)}} \]
      13. distribute-lft-out81.2%

        \[\leadsto 2 \cdot \sqrt{\mathsf{fma}\left(x, z, \color{blue}{y \cdot \left(x + z\right)}\right)} \]
    3. Simplified81.2%

      \[\leadsto \color{blue}{2 \cdot \sqrt{\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)}} \]
    4. Add Preprocessing

    if 3.6999999999999999e46 < y

    1. Initial program 38.8%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. +-commutative38.8%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(x \cdot z + x \cdot y\right)} + y \cdot z} \]
      2. associate-+r+38.8%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot z + \left(x \cdot y + y \cdot z\right)}} \]
      3. *-commutative38.8%

        \[\leadsto 2 \cdot \sqrt{x \cdot z + \left(\color{blue}{y \cdot x} + y \cdot z\right)} \]
      4. +-commutative38.8%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(y \cdot x + y \cdot z\right) + x \cdot z}} \]
      5. associate-+l+38.8%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot x + \left(y \cdot z + x \cdot z\right)}} \]
      6. *-commutative38.8%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y} + \left(y \cdot z + x \cdot z\right)} \]
      7. distribute-rgt-in39.0%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(y + x\right)}} \]
    3. Simplified39.0%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around inf 24.6%

      \[\leadsto 2 \cdot \color{blue}{\left(z \cdot \left(\sqrt{\frac{x + y}{z}} + 0.5 \cdot \left(\left(x \cdot y\right) \cdot \sqrt{\frac{1}{{z}^{3} \cdot \left(x + y\right)}}\right)\right)\right)} \]
    6. Step-by-step derivation
      1. +-commutative24.6%

        \[\leadsto 2 \cdot \left(z \cdot \left(\sqrt{\frac{\color{blue}{y + x}}{z}} + 0.5 \cdot \left(\left(x \cdot y\right) \cdot \sqrt{\frac{1}{{z}^{3} \cdot \left(x + y\right)}}\right)\right)\right) \]
      2. *-commutative24.6%

        \[\leadsto 2 \cdot \left(z \cdot \left(\sqrt{\frac{y + x}{z}} + 0.5 \cdot \left(\color{blue}{\left(y \cdot x\right)} \cdot \sqrt{\frac{1}{{z}^{3} \cdot \left(x + y\right)}}\right)\right)\right) \]
      3. associate-/r*24.6%

        \[\leadsto 2 \cdot \left(z \cdot \left(\sqrt{\frac{y + x}{z}} + 0.5 \cdot \left(\left(y \cdot x\right) \cdot \sqrt{\color{blue}{\frac{\frac{1}{{z}^{3}}}{x + y}}}\right)\right)\right) \]
      4. +-commutative24.6%

        \[\leadsto 2 \cdot \left(z \cdot \left(\sqrt{\frac{y + x}{z}} + 0.5 \cdot \left(\left(y \cdot x\right) \cdot \sqrt{\frac{\frac{1}{{z}^{3}}}{\color{blue}{y + x}}}\right)\right)\right) \]
    7. Simplified24.6%

      \[\leadsto 2 \cdot \color{blue}{\left(z \cdot \left(\sqrt{\frac{y + x}{z}} + 0.5 \cdot \left(\left(y \cdot x\right) \cdot \sqrt{\frac{\frac{1}{{z}^{3}}}{y + x}}\right)\right)\right)} \]
    8. Taylor expanded in y around 0 27.7%

      \[\leadsto 2 \cdot \left(z \cdot \left(\sqrt{\frac{y + x}{z}} + 0.5 \cdot \color{blue}{\left(\sqrt{\frac{x}{{z}^{3}}} \cdot y\right)}\right)\right) \]
  3. Recombined 2 regimes into one program.
  4. Final simplification69.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq 3.7 \cdot 10^{+46}:\\ \;\;\;\;2 \cdot \sqrt{\mathsf{fma}\left(x, z, y \cdot \left(z + x\right)\right)}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \left(z \cdot \left(\sqrt{\frac{y + x}{z}} + 0.5 \cdot \left(y \cdot \sqrt{\frac{x}{{z}^{3}}}\right)\right)\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 5: 83.3% accurate, 0.5× speedup?

\[\begin{array}{l} [x, y, z] = \mathsf{sort}([x, y, z])\\ \\ \begin{array}{l} \mathbf{if}\;y \leq 1.75 \cdot 10^{+20}:\\ \;\;\;\;2 \cdot \sqrt{\mathsf{fma}\left(x, z, y \cdot \left(z + x\right)\right)}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \left(\sqrt{z} \cdot \sqrt{y}\right)\\ \end{array} \end{array} \]
NOTE: x, y, and z should be sorted in increasing order before calling this function.
(FPCore (x y z)
 :precision binary64
 (if (<= y 1.75e+20)
   (* 2.0 (sqrt (fma x z (* y (+ z x)))))
   (* 2.0 (* (sqrt z) (sqrt y)))))
assert(x < y && y < z);
double code(double x, double y, double z) {
	double tmp;
	if (y <= 1.75e+20) {
		tmp = 2.0 * sqrt(fma(x, z, (y * (z + x))));
	} else {
		tmp = 2.0 * (sqrt(z) * sqrt(y));
	}
	return tmp;
}
x, y, z = sort([x, y, z])
function code(x, y, z)
	tmp = 0.0
	if (y <= 1.75e+20)
		tmp = Float64(2.0 * sqrt(fma(x, z, Float64(y * Float64(z + x)))));
	else
		tmp = Float64(2.0 * Float64(sqrt(z) * sqrt(y)));
	end
	return tmp
end
NOTE: x, y, and z should be sorted in increasing order before calling this function.
code[x_, y_, z_] := If[LessEqual[y, 1.75e+20], N[(2.0 * N[Sqrt[N[(x * z + N[(y * N[(z + x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], N[(2.0 * N[(N[Sqrt[z], $MachinePrecision] * N[Sqrt[y], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
[x, y, z] = \mathsf{sort}([x, y, z])\\
\\
\begin{array}{l}
\mathbf{if}\;y \leq 1.75 \cdot 10^{+20}:\\
\;\;\;\;2 \cdot \sqrt{\mathsf{fma}\left(x, z, y \cdot \left(z + x\right)\right)}\\

\mathbf{else}:\\
\;\;\;\;2 \cdot \left(\sqrt{z} \cdot \sqrt{y}\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < 1.75e20

    1. Initial program 80.7%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. associate-+l+80.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y + \left(x \cdot z + y \cdot z\right)}} \]
      2. *-commutative80.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot x} + \left(x \cdot z + y \cdot z\right)} \]
      3. *-commutative80.7%

        \[\leadsto 2 \cdot \sqrt{y \cdot x + \left(\color{blue}{z \cdot x} + y \cdot z\right)} \]
      4. *-commutative80.7%

        \[\leadsto 2 \cdot \sqrt{y \cdot x + \left(z \cdot x + \color{blue}{z \cdot y}\right)} \]
      5. +-commutative80.7%

        \[\leadsto 2 \cdot \sqrt{y \cdot x + \color{blue}{\left(z \cdot y + z \cdot x\right)}} \]
      6. +-commutative80.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(z \cdot y + z \cdot x\right) + y \cdot x}} \]
      7. +-commutative80.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot x + \left(z \cdot y + z \cdot x\right)}} \]
      8. *-commutative80.7%

        \[\leadsto 2 \cdot \sqrt{y \cdot x + \left(\color{blue}{y \cdot z} + z \cdot x\right)} \]
      9. *-commutative80.7%

        \[\leadsto 2 \cdot \sqrt{y \cdot x + \left(y \cdot z + \color{blue}{x \cdot z}\right)} \]
      10. associate-+l+80.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(y \cdot x + y \cdot z\right) + x \cdot z}} \]
      11. +-commutative80.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot z + \left(y \cdot x + y \cdot z\right)}} \]
      12. fma-define80.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\mathsf{fma}\left(x, z, y \cdot x + y \cdot z\right)}} \]
      13. distribute-lft-out80.8%

        \[\leadsto 2 \cdot \sqrt{\mathsf{fma}\left(x, z, \color{blue}{y \cdot \left(x + z\right)}\right)} \]
    3. Simplified80.8%

      \[\leadsto \color{blue}{2 \cdot \sqrt{\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)}} \]
    4. Add Preprocessing

    if 1.75e20 < y

    1. Initial program 42.9%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Add Preprocessing
    3. Step-by-step derivation
      1. distribute-lft-out42.9%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot \left(y + z\right)} + y \cdot z} \]
      2. *-commutative42.9%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(y + z\right) \cdot x} + y \cdot z} \]
    4. Applied egg-rr42.9%

      \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(y + z\right) \cdot x} + y \cdot z} \]
    5. Taylor expanded in x around 0 11.5%

      \[\leadsto 2 \cdot \color{blue}{\sqrt{y \cdot z}} \]
    6. Step-by-step derivation
      1. *-commutative11.5%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{z \cdot y}} \]
    7. Simplified11.5%

      \[\leadsto 2 \cdot \color{blue}{\sqrt{z \cdot y}} \]
    8. Step-by-step derivation
      1. sqrt-prod34.4%

        \[\leadsto 2 \cdot \color{blue}{\left(\sqrt{z} \cdot \sqrt{y}\right)} \]
    9. Applied egg-rr34.4%

      \[\leadsto 2 \cdot \color{blue}{\left(\sqrt{z} \cdot \sqrt{y}\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification70.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq 1.75 \cdot 10^{+20}:\\ \;\;\;\;2 \cdot \sqrt{\mathsf{fma}\left(x, z, y \cdot \left(z + x\right)\right)}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \left(\sqrt{z} \cdot \sqrt{y}\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 6: 83.2% accurate, 0.5× speedup?

\[\begin{array}{l} [x, y, z] = \mathsf{sort}([x, y, z])\\ \\ \begin{array}{l} \mathbf{if}\;y \leq 4.2 \cdot 10^{+23}:\\ \;\;\;\;2 \cdot \sqrt{x \cdot \left(y + z\right) + y \cdot z}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \left(\sqrt{z} \cdot \sqrt{y}\right)\\ \end{array} \end{array} \]
NOTE: x, y, and z should be sorted in increasing order before calling this function.
(FPCore (x y z)
 :precision binary64
 (if (<= y 4.2e+23)
   (* 2.0 (sqrt (+ (* x (+ y z)) (* y z))))
   (* 2.0 (* (sqrt z) (sqrt y)))))
assert(x < y && y < z);
double code(double x, double y, double z) {
	double tmp;
	if (y <= 4.2e+23) {
		tmp = 2.0 * sqrt(((x * (y + z)) + (y * z)));
	} else {
		tmp = 2.0 * (sqrt(z) * sqrt(y));
	}
	return tmp;
}
NOTE: x, y, and z should be sorted in increasing order before calling this function.
real(8) function code(x, y, z)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8) :: tmp
    if (y <= 4.2d+23) then
        tmp = 2.0d0 * sqrt(((x * (y + z)) + (y * z)))
    else
        tmp = 2.0d0 * (sqrt(z) * sqrt(y))
    end if
    code = tmp
end function
assert x < y && y < z;
public static double code(double x, double y, double z) {
	double tmp;
	if (y <= 4.2e+23) {
		tmp = 2.0 * Math.sqrt(((x * (y + z)) + (y * z)));
	} else {
		tmp = 2.0 * (Math.sqrt(z) * Math.sqrt(y));
	}
	return tmp;
}
[x, y, z] = sort([x, y, z])
def code(x, y, z):
	tmp = 0
	if y <= 4.2e+23:
		tmp = 2.0 * math.sqrt(((x * (y + z)) + (y * z)))
	else:
		tmp = 2.0 * (math.sqrt(z) * math.sqrt(y))
	return tmp
x, y, z = sort([x, y, z])
function code(x, y, z)
	tmp = 0.0
	if (y <= 4.2e+23)
		tmp = Float64(2.0 * sqrt(Float64(Float64(x * Float64(y + z)) + Float64(y * z))));
	else
		tmp = Float64(2.0 * Float64(sqrt(z) * sqrt(y)));
	end
	return tmp
end
x, y, z = num2cell(sort([x, y, z])){:}
function tmp_2 = code(x, y, z)
	tmp = 0.0;
	if (y <= 4.2e+23)
		tmp = 2.0 * sqrt(((x * (y + z)) + (y * z)));
	else
		tmp = 2.0 * (sqrt(z) * sqrt(y));
	end
	tmp_2 = tmp;
end
NOTE: x, y, and z should be sorted in increasing order before calling this function.
code[x_, y_, z_] := If[LessEqual[y, 4.2e+23], N[(2.0 * N[Sqrt[N[(N[(x * N[(y + z), $MachinePrecision]), $MachinePrecision] + N[(y * z), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], N[(2.0 * N[(N[Sqrt[z], $MachinePrecision] * N[Sqrt[y], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
[x, y, z] = \mathsf{sort}([x, y, z])\\
\\
\begin{array}{l}
\mathbf{if}\;y \leq 4.2 \cdot 10^{+23}:\\
\;\;\;\;2 \cdot \sqrt{x \cdot \left(y + z\right) + y \cdot z}\\

\mathbf{else}:\\
\;\;\;\;2 \cdot \left(\sqrt{z} \cdot \sqrt{y}\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < 4.2000000000000003e23

    1. Initial program 80.8%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Add Preprocessing
    3. Step-by-step derivation
      1. distribute-lft-out80.8%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot \left(y + z\right)} + y \cdot z} \]
      2. *-commutative80.8%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(y + z\right) \cdot x} + y \cdot z} \]
    4. Applied egg-rr80.8%

      \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(y + z\right) \cdot x} + y \cdot z} \]

    if 4.2000000000000003e23 < y

    1. Initial program 41.9%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Add Preprocessing
    3. Step-by-step derivation
      1. distribute-lft-out41.9%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot \left(y + z\right)} + y \cdot z} \]
      2. *-commutative41.9%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(y + z\right) \cdot x} + y \cdot z} \]
    4. Applied egg-rr41.9%

      \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(y + z\right) \cdot x} + y \cdot z} \]
    5. Taylor expanded in x around 0 11.7%

      \[\leadsto 2 \cdot \color{blue}{\sqrt{y \cdot z}} \]
    6. Step-by-step derivation
      1. *-commutative11.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{z \cdot y}} \]
    7. Simplified11.7%

      \[\leadsto 2 \cdot \color{blue}{\sqrt{z \cdot y}} \]
    8. Step-by-step derivation
      1. sqrt-prod35.0%

        \[\leadsto 2 \cdot \color{blue}{\left(\sqrt{z} \cdot \sqrt{y}\right)} \]
    9. Applied egg-rr35.0%

      \[\leadsto 2 \cdot \color{blue}{\left(\sqrt{z} \cdot \sqrt{y}\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification70.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq 4.2 \cdot 10^{+23}:\\ \;\;\;\;2 \cdot \sqrt{x \cdot \left(y + z\right) + y \cdot z}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \left(\sqrt{z} \cdot \sqrt{y}\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 7: 69.1% accurate, 1.0× speedup?

\[\begin{array}{l} [x, y, z] = \mathsf{sort}([x, y, z])\\ \\ \begin{array}{l} \mathbf{if}\;y \leq 3.3 \cdot 10^{-267}:\\ \;\;\;\;2 \cdot \sqrt{x \cdot \left(y + z\right)}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \sqrt{y \cdot z}\\ \end{array} \end{array} \]
NOTE: x, y, and z should be sorted in increasing order before calling this function.
(FPCore (x y z)
 :precision binary64
 (if (<= y 3.3e-267) (* 2.0 (sqrt (* x (+ y z)))) (* 2.0 (sqrt (* y z)))))
assert(x < y && y < z);
double code(double x, double y, double z) {
	double tmp;
	if (y <= 3.3e-267) {
		tmp = 2.0 * sqrt((x * (y + z)));
	} else {
		tmp = 2.0 * sqrt((y * z));
	}
	return tmp;
}
NOTE: x, y, and z should be sorted in increasing order before calling this function.
real(8) function code(x, y, z)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8) :: tmp
    if (y <= 3.3d-267) then
        tmp = 2.0d0 * sqrt((x * (y + z)))
    else
        tmp = 2.0d0 * sqrt((y * z))
    end if
    code = tmp
end function
assert x < y && y < z;
public static double code(double x, double y, double z) {
	double tmp;
	if (y <= 3.3e-267) {
		tmp = 2.0 * Math.sqrt((x * (y + z)));
	} else {
		tmp = 2.0 * Math.sqrt((y * z));
	}
	return tmp;
}
[x, y, z] = sort([x, y, z])
def code(x, y, z):
	tmp = 0
	if y <= 3.3e-267:
		tmp = 2.0 * math.sqrt((x * (y + z)))
	else:
		tmp = 2.0 * math.sqrt((y * z))
	return tmp
x, y, z = sort([x, y, z])
function code(x, y, z)
	tmp = 0.0
	if (y <= 3.3e-267)
		tmp = Float64(2.0 * sqrt(Float64(x * Float64(y + z))));
	else
		tmp = Float64(2.0 * sqrt(Float64(y * z)));
	end
	return tmp
end
x, y, z = num2cell(sort([x, y, z])){:}
function tmp_2 = code(x, y, z)
	tmp = 0.0;
	if (y <= 3.3e-267)
		tmp = 2.0 * sqrt((x * (y + z)));
	else
		tmp = 2.0 * sqrt((y * z));
	end
	tmp_2 = tmp;
end
NOTE: x, y, and z should be sorted in increasing order before calling this function.
code[x_, y_, z_] := If[LessEqual[y, 3.3e-267], N[(2.0 * N[Sqrt[N[(x * N[(y + z), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], N[(2.0 * N[Sqrt[N[(y * z), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
[x, y, z] = \mathsf{sort}([x, y, z])\\
\\
\begin{array}{l}
\mathbf{if}\;y \leq 3.3 \cdot 10^{-267}:\\
\;\;\;\;2 \cdot \sqrt{x \cdot \left(y + z\right)}\\

\mathbf{else}:\\
\;\;\;\;2 \cdot \sqrt{y \cdot z}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < 3.30000000000000004e-267

    1. Initial program 76.2%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. +-commutative76.2%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(x \cdot z + x \cdot y\right)} + y \cdot z} \]
      2. associate-+r+76.2%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot z + \left(x \cdot y + y \cdot z\right)}} \]
      3. *-commutative76.2%

        \[\leadsto 2 \cdot \sqrt{x \cdot z + \left(\color{blue}{y \cdot x} + y \cdot z\right)} \]
      4. +-commutative76.2%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(y \cdot x + y \cdot z\right) + x \cdot z}} \]
      5. associate-+l+76.2%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot x + \left(y \cdot z + x \cdot z\right)}} \]
      6. *-commutative76.2%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y} + \left(y \cdot z + x \cdot z\right)} \]
      7. distribute-rgt-in76.2%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(y + x\right)}} \]
    3. Simplified76.2%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 56.8%

      \[\leadsto 2 \cdot \color{blue}{\sqrt{x \cdot \left(y + z\right)}} \]

    if 3.30000000000000004e-267 < y

    1. Initial program 67.1%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. +-commutative67.1%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(x \cdot z + x \cdot y\right)} + y \cdot z} \]
      2. associate-+r+67.1%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot z + \left(x \cdot y + y \cdot z\right)}} \]
      3. *-commutative67.1%

        \[\leadsto 2 \cdot \sqrt{x \cdot z + \left(\color{blue}{y \cdot x} + y \cdot z\right)} \]
      4. +-commutative67.1%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(y \cdot x + y \cdot z\right) + x \cdot z}} \]
      5. associate-+l+67.1%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot x + \left(y \cdot z + x \cdot z\right)}} \]
      6. *-commutative67.1%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y} + \left(y \cdot z + x \cdot z\right)} \]
      7. distribute-rgt-in67.2%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(y + x\right)}} \]
    3. Simplified67.2%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around 0 15.4%

      \[\leadsto 2 \cdot \color{blue}{\sqrt{y \cdot z}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification37.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq 3.3 \cdot 10^{-267}:\\ \;\;\;\;2 \cdot \sqrt{x \cdot \left(y + z\right)}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \sqrt{y \cdot z}\\ \end{array} \]
  5. Add Preprocessing

Alternative 8: 70.2% accurate, 1.0× speedup?

\[\begin{array}{l} [x, y, z] = \mathsf{sort}([x, y, z])\\ \\ \begin{array}{l} \mathbf{if}\;y \leq -2 \cdot 10^{-261}:\\ \;\;\;\;2 \cdot \sqrt{x \cdot \left(y + z\right)}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \sqrt{z \cdot \left(y + x\right)}\\ \end{array} \end{array} \]
NOTE: x, y, and z should be sorted in increasing order before calling this function.
(FPCore (x y z)
 :precision binary64
 (if (<= y -2e-261) (* 2.0 (sqrt (* x (+ y z)))) (* 2.0 (sqrt (* z (+ y x))))))
assert(x < y && y < z);
double code(double x, double y, double z) {
	double tmp;
	if (y <= -2e-261) {
		tmp = 2.0 * sqrt((x * (y + z)));
	} else {
		tmp = 2.0 * sqrt((z * (y + x)));
	}
	return tmp;
}
NOTE: x, y, and z should be sorted in increasing order before calling this function.
real(8) function code(x, y, z)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8) :: tmp
    if (y <= (-2d-261)) then
        tmp = 2.0d0 * sqrt((x * (y + z)))
    else
        tmp = 2.0d0 * sqrt((z * (y + x)))
    end if
    code = tmp
end function
assert x < y && y < z;
public static double code(double x, double y, double z) {
	double tmp;
	if (y <= -2e-261) {
		tmp = 2.0 * Math.sqrt((x * (y + z)));
	} else {
		tmp = 2.0 * Math.sqrt((z * (y + x)));
	}
	return tmp;
}
[x, y, z] = sort([x, y, z])
def code(x, y, z):
	tmp = 0
	if y <= -2e-261:
		tmp = 2.0 * math.sqrt((x * (y + z)))
	else:
		tmp = 2.0 * math.sqrt((z * (y + x)))
	return tmp
x, y, z = sort([x, y, z])
function code(x, y, z)
	tmp = 0.0
	if (y <= -2e-261)
		tmp = Float64(2.0 * sqrt(Float64(x * Float64(y + z))));
	else
		tmp = Float64(2.0 * sqrt(Float64(z * Float64(y + x))));
	end
	return tmp
end
x, y, z = num2cell(sort([x, y, z])){:}
function tmp_2 = code(x, y, z)
	tmp = 0.0;
	if (y <= -2e-261)
		tmp = 2.0 * sqrt((x * (y + z)));
	else
		tmp = 2.0 * sqrt((z * (y + x)));
	end
	tmp_2 = tmp;
end
NOTE: x, y, and z should be sorted in increasing order before calling this function.
code[x_, y_, z_] := If[LessEqual[y, -2e-261], N[(2.0 * N[Sqrt[N[(x * N[(y + z), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], N[(2.0 * N[Sqrt[N[(z * N[(y + x), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
[x, y, z] = \mathsf{sort}([x, y, z])\\
\\
\begin{array}{l}
\mathbf{if}\;y \leq -2 \cdot 10^{-261}:\\
\;\;\;\;2 \cdot \sqrt{x \cdot \left(y + z\right)}\\

\mathbf{else}:\\
\;\;\;\;2 \cdot \sqrt{z \cdot \left(y + x\right)}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -1.99999999999999997e-261

    1. Initial program 75.8%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. +-commutative75.8%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(x \cdot z + x \cdot y\right)} + y \cdot z} \]
      2. associate-+r+75.8%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot z + \left(x \cdot y + y \cdot z\right)}} \]
      3. *-commutative75.8%

        \[\leadsto 2 \cdot \sqrt{x \cdot z + \left(\color{blue}{y \cdot x} + y \cdot z\right)} \]
      4. +-commutative75.8%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(y \cdot x + y \cdot z\right) + x \cdot z}} \]
      5. associate-+l+75.8%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot x + \left(y \cdot z + x \cdot z\right)}} \]
      6. *-commutative75.8%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y} + \left(y \cdot z + x \cdot z\right)} \]
      7. distribute-rgt-in75.8%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(y + x\right)}} \]
    3. Simplified75.8%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 54.2%

      \[\leadsto 2 \cdot \color{blue}{\sqrt{x \cdot \left(y + z\right)}} \]

    if -1.99999999999999997e-261 < y

    1. Initial program 68.5%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. +-commutative68.5%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(x \cdot z + x \cdot y\right)} + y \cdot z} \]
      2. associate-+r+68.5%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot z + \left(x \cdot y + y \cdot z\right)}} \]
      3. *-commutative68.5%

        \[\leadsto 2 \cdot \sqrt{x \cdot z + \left(\color{blue}{y \cdot x} + y \cdot z\right)} \]
      4. +-commutative68.5%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(y \cdot x + y \cdot z\right) + x \cdot z}} \]
      5. associate-+l+68.5%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot x + \left(y \cdot z + x \cdot z\right)}} \]
      6. *-commutative68.5%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y} + \left(y \cdot z + x \cdot z\right)} \]
      7. distribute-rgt-in68.6%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(y + x\right)}} \]
    3. Simplified68.6%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around inf 39.6%

      \[\leadsto 2 \cdot \color{blue}{\sqrt{z \cdot \left(x + y\right)}} \]
    6. Step-by-step derivation
      1. +-commutative39.6%

        \[\leadsto 2 \cdot \sqrt{z \cdot \color{blue}{\left(y + x\right)}} \]
    7. Simplified39.6%

      \[\leadsto 2 \cdot \color{blue}{\sqrt{z \cdot \left(y + x\right)}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification46.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -2 \cdot 10^{-261}:\\ \;\;\;\;2 \cdot \sqrt{x \cdot \left(y + z\right)}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \sqrt{z \cdot \left(y + x\right)}\\ \end{array} \]
  5. Add Preprocessing

Alternative 9: 70.4% accurate, 1.0× speedup?

\[\begin{array}{l} [x, y, z] = \mathsf{sort}([x, y, z])\\ \\ 2 \cdot \sqrt{z \cdot \left(y + x\right) + y \cdot x} \end{array} \]
NOTE: x, y, and z should be sorted in increasing order before calling this function.
(FPCore (x y z) :precision binary64 (* 2.0 (sqrt (+ (* z (+ y x)) (* y x)))))
assert(x < y && y < z);
double code(double x, double y, double z) {
	return 2.0 * sqrt(((z * (y + x)) + (y * x)));
}
NOTE: x, y, and z should be sorted in increasing order before calling this function.
real(8) function code(x, y, z)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    code = 2.0d0 * sqrt(((z * (y + x)) + (y * x)))
end function
assert x < y && y < z;
public static double code(double x, double y, double z) {
	return 2.0 * Math.sqrt(((z * (y + x)) + (y * x)));
}
[x, y, z] = sort([x, y, z])
def code(x, y, z):
	return 2.0 * math.sqrt(((z * (y + x)) + (y * x)))
x, y, z = sort([x, y, z])
function code(x, y, z)
	return Float64(2.0 * sqrt(Float64(Float64(z * Float64(y + x)) + Float64(y * x))))
end
x, y, z = num2cell(sort([x, y, z])){:}
function tmp = code(x, y, z)
	tmp = 2.0 * sqrt(((z * (y + x)) + (y * x)));
end
NOTE: x, y, and z should be sorted in increasing order before calling this function.
code[x_, y_, z_] := N[(2.0 * N[Sqrt[N[(N[(z * N[(y + x), $MachinePrecision]), $MachinePrecision] + N[(y * x), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
[x, y, z] = \mathsf{sort}([x, y, z])\\
\\
2 \cdot \sqrt{z \cdot \left(y + x\right) + y \cdot x}
\end{array}
Derivation
  1. Initial program 72.0%

    \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
  2. Step-by-step derivation
    1. +-commutative72.0%

      \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(x \cdot z + x \cdot y\right)} + y \cdot z} \]
    2. associate-+r+72.0%

      \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot z + \left(x \cdot y + y \cdot z\right)}} \]
    3. *-commutative72.0%

      \[\leadsto 2 \cdot \sqrt{x \cdot z + \left(\color{blue}{y \cdot x} + y \cdot z\right)} \]
    4. +-commutative72.0%

      \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(y \cdot x + y \cdot z\right) + x \cdot z}} \]
    5. associate-+l+72.0%

      \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot x + \left(y \cdot z + x \cdot z\right)}} \]
    6. *-commutative72.0%

      \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y} + \left(y \cdot z + x \cdot z\right)} \]
    7. distribute-rgt-in72.0%

      \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(y + x\right)}} \]
  3. Simplified72.0%

    \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
  4. Add Preprocessing
  5. Final simplification72.0%

    \[\leadsto 2 \cdot \sqrt{z \cdot \left(y + x\right) + y \cdot x} \]
  6. Add Preprocessing

Alternative 10: 67.8% accurate, 1.0× speedup?

\[\begin{array}{l} [x, y, z] = \mathsf{sort}([x, y, z])\\ \\ \begin{array}{l} \mathbf{if}\;y \leq 2.4 \cdot 10^{-262}:\\ \;\;\;\;2 \cdot \sqrt{y \cdot x}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \sqrt{y \cdot z}\\ \end{array} \end{array} \]
NOTE: x, y, and z should be sorted in increasing order before calling this function.
(FPCore (x y z)
 :precision binary64
 (if (<= y 2.4e-262) (* 2.0 (sqrt (* y x))) (* 2.0 (sqrt (* y z)))))
assert(x < y && y < z);
double code(double x, double y, double z) {
	double tmp;
	if (y <= 2.4e-262) {
		tmp = 2.0 * sqrt((y * x));
	} else {
		tmp = 2.0 * sqrt((y * z));
	}
	return tmp;
}
NOTE: x, y, and z should be sorted in increasing order before calling this function.
real(8) function code(x, y, z)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8) :: tmp
    if (y <= 2.4d-262) then
        tmp = 2.0d0 * sqrt((y * x))
    else
        tmp = 2.0d0 * sqrt((y * z))
    end if
    code = tmp
end function
assert x < y && y < z;
public static double code(double x, double y, double z) {
	double tmp;
	if (y <= 2.4e-262) {
		tmp = 2.0 * Math.sqrt((y * x));
	} else {
		tmp = 2.0 * Math.sqrt((y * z));
	}
	return tmp;
}
[x, y, z] = sort([x, y, z])
def code(x, y, z):
	tmp = 0
	if y <= 2.4e-262:
		tmp = 2.0 * math.sqrt((y * x))
	else:
		tmp = 2.0 * math.sqrt((y * z))
	return tmp
x, y, z = sort([x, y, z])
function code(x, y, z)
	tmp = 0.0
	if (y <= 2.4e-262)
		tmp = Float64(2.0 * sqrt(Float64(y * x)));
	else
		tmp = Float64(2.0 * sqrt(Float64(y * z)));
	end
	return tmp
end
x, y, z = num2cell(sort([x, y, z])){:}
function tmp_2 = code(x, y, z)
	tmp = 0.0;
	if (y <= 2.4e-262)
		tmp = 2.0 * sqrt((y * x));
	else
		tmp = 2.0 * sqrt((y * z));
	end
	tmp_2 = tmp;
end
NOTE: x, y, and z should be sorted in increasing order before calling this function.
code[x_, y_, z_] := If[LessEqual[y, 2.4e-262], N[(2.0 * N[Sqrt[N[(y * x), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], N[(2.0 * N[Sqrt[N[(y * z), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
[x, y, z] = \mathsf{sort}([x, y, z])\\
\\
\begin{array}{l}
\mathbf{if}\;y \leq 2.4 \cdot 10^{-262}:\\
\;\;\;\;2 \cdot \sqrt{y \cdot x}\\

\mathbf{else}:\\
\;\;\;\;2 \cdot \sqrt{y \cdot z}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < 2.4e-262

    1. Initial program 76.2%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. +-commutative76.2%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(x \cdot z + x \cdot y\right)} + y \cdot z} \]
      2. associate-+r+76.2%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot z + \left(x \cdot y + y \cdot z\right)}} \]
      3. *-commutative76.2%

        \[\leadsto 2 \cdot \sqrt{x \cdot z + \left(\color{blue}{y \cdot x} + y \cdot z\right)} \]
      4. +-commutative76.2%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(y \cdot x + y \cdot z\right) + x \cdot z}} \]
      5. associate-+l+76.2%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot x + \left(y \cdot z + x \cdot z\right)}} \]
      6. *-commutative76.2%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y} + \left(y \cdot z + x \cdot z\right)} \]
      7. distribute-rgt-in76.2%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(y + x\right)}} \]
    3. Simplified76.2%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 32.5%

      \[\leadsto 2 \cdot \color{blue}{\sqrt{x \cdot y}} \]
    6. Step-by-step derivation
      1. *-commutative32.5%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot x}} \]
    7. Simplified32.5%

      \[\leadsto 2 \cdot \color{blue}{\sqrt{y \cdot x}} \]

    if 2.4e-262 < y

    1. Initial program 67.1%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. +-commutative67.1%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(x \cdot z + x \cdot y\right)} + y \cdot z} \]
      2. associate-+r+67.1%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot z + \left(x \cdot y + y \cdot z\right)}} \]
      3. *-commutative67.1%

        \[\leadsto 2 \cdot \sqrt{x \cdot z + \left(\color{blue}{y \cdot x} + y \cdot z\right)} \]
      4. +-commutative67.1%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(y \cdot x + y \cdot z\right) + x \cdot z}} \]
      5. associate-+l+67.1%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot x + \left(y \cdot z + x \cdot z\right)}} \]
      6. *-commutative67.1%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y} + \left(y \cdot z + x \cdot z\right)} \]
      7. distribute-rgt-in67.2%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(y + x\right)}} \]
    3. Simplified67.2%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around 0 15.4%

      \[\leadsto 2 \cdot \color{blue}{\sqrt{y \cdot z}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification24.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq 2.4 \cdot 10^{-262}:\\ \;\;\;\;2 \cdot \sqrt{y \cdot x}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \sqrt{y \cdot z}\\ \end{array} \]
  5. Add Preprocessing

Alternative 11: 34.8% accurate, 1.1× speedup?

\[\begin{array}{l} [x, y, z] = \mathsf{sort}([x, y, z])\\ \\ 2 \cdot \sqrt{y \cdot x} \end{array} \]
NOTE: x, y, and z should be sorted in increasing order before calling this function.
(FPCore (x y z) :precision binary64 (* 2.0 (sqrt (* y x))))
assert(x < y && y < z);
double code(double x, double y, double z) {
	return 2.0 * sqrt((y * x));
}
NOTE: x, y, and z should be sorted in increasing order before calling this function.
real(8) function code(x, y, z)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    code = 2.0d0 * sqrt((y * x))
end function
assert x < y && y < z;
public static double code(double x, double y, double z) {
	return 2.0 * Math.sqrt((y * x));
}
[x, y, z] = sort([x, y, z])
def code(x, y, z):
	return 2.0 * math.sqrt((y * x))
x, y, z = sort([x, y, z])
function code(x, y, z)
	return Float64(2.0 * sqrt(Float64(y * x)))
end
x, y, z = num2cell(sort([x, y, z])){:}
function tmp = code(x, y, z)
	tmp = 2.0 * sqrt((y * x));
end
NOTE: x, y, and z should be sorted in increasing order before calling this function.
code[x_, y_, z_] := N[(2.0 * N[Sqrt[N[(y * x), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
[x, y, z] = \mathsf{sort}([x, y, z])\\
\\
2 \cdot \sqrt{y \cdot x}
\end{array}
Derivation
  1. Initial program 72.0%

    \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
  2. Step-by-step derivation
    1. +-commutative72.0%

      \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(x \cdot z + x \cdot y\right)} + y \cdot z} \]
    2. associate-+r+72.0%

      \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot z + \left(x \cdot y + y \cdot z\right)}} \]
    3. *-commutative72.0%

      \[\leadsto 2 \cdot \sqrt{x \cdot z + \left(\color{blue}{y \cdot x} + y \cdot z\right)} \]
    4. +-commutative72.0%

      \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(y \cdot x + y \cdot z\right) + x \cdot z}} \]
    5. associate-+l+72.0%

      \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot x + \left(y \cdot z + x \cdot z\right)}} \]
    6. *-commutative72.0%

      \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y} + \left(y \cdot z + x \cdot z\right)} \]
    7. distribute-rgt-in72.0%

      \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(y + x\right)}} \]
  3. Simplified72.0%

    \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
  4. Add Preprocessing
  5. Taylor expanded in z around 0 33.8%

    \[\leadsto 2 \cdot \color{blue}{\sqrt{x \cdot y}} \]
  6. Step-by-step derivation
    1. *-commutative33.8%

      \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot x}} \]
  7. Simplified33.8%

    \[\leadsto 2 \cdot \color{blue}{\sqrt{y \cdot x}} \]
  8. Final simplification33.8%

    \[\leadsto 2 \cdot \sqrt{y \cdot x} \]
  9. Add Preprocessing

Developer target: 82.8% accurate, 0.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := 0.25 \cdot \left(\left({y}^{-0.75} \cdot \left({z}^{-0.75} \cdot x\right)\right) \cdot \left(y + z\right)\right) + {z}^{0.25} \cdot {y}^{0.25}\\ \mathbf{if}\;z < 7.636950090573675 \cdot 10^{+176}:\\ \;\;\;\;2 \cdot \sqrt{\left(x + y\right) \cdot z + x \cdot y}\\ \mathbf{else}:\\ \;\;\;\;\left(t\_0 \cdot t\_0\right) \cdot 2\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (let* ((t_0
         (+
          (* 0.25 (* (* (pow y -0.75) (* (pow z -0.75) x)) (+ y z)))
          (* (pow z 0.25) (pow y 0.25)))))
   (if (< z 7.636950090573675e+176)
     (* 2.0 (sqrt (+ (* (+ x y) z) (* x y))))
     (* (* t_0 t_0) 2.0))))
double code(double x, double y, double z) {
	double t_0 = (0.25 * ((pow(y, -0.75) * (pow(z, -0.75) * x)) * (y + z))) + (pow(z, 0.25) * pow(y, 0.25));
	double tmp;
	if (z < 7.636950090573675e+176) {
		tmp = 2.0 * sqrt((((x + y) * z) + (x * y)));
	} else {
		tmp = (t_0 * t_0) * 2.0;
	}
	return tmp;
}
real(8) function code(x, y, z)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8) :: t_0
    real(8) :: tmp
    t_0 = (0.25d0 * (((y ** (-0.75d0)) * ((z ** (-0.75d0)) * x)) * (y + z))) + ((z ** 0.25d0) * (y ** 0.25d0))
    if (z < 7.636950090573675d+176) then
        tmp = 2.0d0 * sqrt((((x + y) * z) + (x * y)))
    else
        tmp = (t_0 * t_0) * 2.0d0
    end if
    code = tmp
end function
public static double code(double x, double y, double z) {
	double t_0 = (0.25 * ((Math.pow(y, -0.75) * (Math.pow(z, -0.75) * x)) * (y + z))) + (Math.pow(z, 0.25) * Math.pow(y, 0.25));
	double tmp;
	if (z < 7.636950090573675e+176) {
		tmp = 2.0 * Math.sqrt((((x + y) * z) + (x * y)));
	} else {
		tmp = (t_0 * t_0) * 2.0;
	}
	return tmp;
}
def code(x, y, z):
	t_0 = (0.25 * ((math.pow(y, -0.75) * (math.pow(z, -0.75) * x)) * (y + z))) + (math.pow(z, 0.25) * math.pow(y, 0.25))
	tmp = 0
	if z < 7.636950090573675e+176:
		tmp = 2.0 * math.sqrt((((x + y) * z) + (x * y)))
	else:
		tmp = (t_0 * t_0) * 2.0
	return tmp
function code(x, y, z)
	t_0 = Float64(Float64(0.25 * Float64(Float64((y ^ -0.75) * Float64((z ^ -0.75) * x)) * Float64(y + z))) + Float64((z ^ 0.25) * (y ^ 0.25)))
	tmp = 0.0
	if (z < 7.636950090573675e+176)
		tmp = Float64(2.0 * sqrt(Float64(Float64(Float64(x + y) * z) + Float64(x * y))));
	else
		tmp = Float64(Float64(t_0 * t_0) * 2.0);
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	t_0 = (0.25 * (((y ^ -0.75) * ((z ^ -0.75) * x)) * (y + z))) + ((z ^ 0.25) * (y ^ 0.25));
	tmp = 0.0;
	if (z < 7.636950090573675e+176)
		tmp = 2.0 * sqrt((((x + y) * z) + (x * y)));
	else
		tmp = (t_0 * t_0) * 2.0;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := Block[{t$95$0 = N[(N[(0.25 * N[(N[(N[Power[y, -0.75], $MachinePrecision] * N[(N[Power[z, -0.75], $MachinePrecision] * x), $MachinePrecision]), $MachinePrecision] * N[(y + z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(N[Power[z, 0.25], $MachinePrecision] * N[Power[y, 0.25], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[Less[z, 7.636950090573675e+176], N[(2.0 * N[Sqrt[N[(N[(N[(x + y), $MachinePrecision] * z), $MachinePrecision] + N[(x * y), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], N[(N[(t$95$0 * t$95$0), $MachinePrecision] * 2.0), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := 0.25 \cdot \left(\left({y}^{-0.75} \cdot \left({z}^{-0.75} \cdot x\right)\right) \cdot \left(y + z\right)\right) + {z}^{0.25} \cdot {y}^{0.25}\\
\mathbf{if}\;z < 7.636950090573675 \cdot 10^{+176}:\\
\;\;\;\;2 \cdot \sqrt{\left(x + y\right) \cdot z + x \cdot y}\\

\mathbf{else}:\\
\;\;\;\;\left(t\_0 \cdot t\_0\right) \cdot 2\\


\end{array}
\end{array}

Reproduce

?
herbie shell --seed 2024060 
(FPCore (x y z)
  :name "Diagrams.TwoD.Apollonian:descartes from diagrams-contrib-1.3.0.5"
  :precision binary64

  :alt
  (if (< z 7.636950090573675e+176) (* 2.0 (sqrt (+ (* (+ x y) z) (* x y)))) (* (* (+ (* 0.25 (* (* (pow y -0.75) (* (pow z -0.75) x)) (+ y z))) (* (pow z 0.25) (pow y 0.25))) (+ (* 0.25 (* (* (pow y -0.75) (* (pow z -0.75) x)) (+ y z))) (* (pow z 0.25) (pow y 0.25)))) 2.0))

  (* 2.0 (sqrt (+ (+ (* x y) (* x z)) (* y z)))))