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

Percentage Accurate: 70.3% → 96.3%
Time: 12.4s
Alternatives: 12
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 12 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: 70.3% 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: 96.3% accurate, 0.3× speedup?

\[\begin{array}{l} [x, y, z] = \mathsf{sort}([x, y, z])\\ \\ \begin{array}{l} \mathbf{if}\;y \leq -3.5 \cdot 10^{+39}:\\ \;\;\;\;2 \cdot {\left(e^{0.25 \cdot \left(\log \left(\left(-z\right) - x\right) - \log \left(\frac{-1}{y}\right)\right)}\right)}^{2}\\ \mathbf{elif}\;y \leq -1.1 \cdot 10^{-191}:\\ \;\;\;\;2 \cdot \sqrt{y \cdot x + x \cdot z}\\ \mathbf{elif}\;y \leq 9.2 \cdot 10^{-306}:\\ \;\;\;\;2 \cdot {\left(e^{0.25 \cdot \left(\log \left(\left(-z\right) - y\right) - \log \left(\frac{-1}{x}\right)\right)}\right)}^{2}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \left(\sqrt{y + x} \cdot \sqrt{z}\right)\\ \end{array} \end{array} \]
NOTE: x, y, and z should be sorted in increasing order before calling this function.
(FPCore (x y z)
 :precision binary64
 (if (<= y -3.5e+39)
   (* 2.0 (pow (exp (* 0.25 (- (log (- (- z) x)) (log (/ -1.0 y))))) 2.0))
   (if (<= y -1.1e-191)
     (* 2.0 (sqrt (+ (* y x) (* x z))))
     (if (<= y 9.2e-306)
       (* 2.0 (pow (exp (* 0.25 (- (log (- (- z) y)) (log (/ -1.0 x))))) 2.0))
       (* 2.0 (* (sqrt (+ y x)) (sqrt z)))))))
assert(x < y && y < z);
double code(double x, double y, double z) {
	double tmp;
	if (y <= -3.5e+39) {
		tmp = 2.0 * pow(exp((0.25 * (log((-z - x)) - log((-1.0 / y))))), 2.0);
	} else if (y <= -1.1e-191) {
		tmp = 2.0 * sqrt(((y * x) + (x * z)));
	} else if (y <= 9.2e-306) {
		tmp = 2.0 * pow(exp((0.25 * (log((-z - y)) - log((-1.0 / x))))), 2.0);
	} else {
		tmp = 2.0 * (sqrt((y + x)) * sqrt(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 <= (-3.5d+39)) then
        tmp = 2.0d0 * (exp((0.25d0 * (log((-z - x)) - log(((-1.0d0) / y))))) ** 2.0d0)
    else if (y <= (-1.1d-191)) then
        tmp = 2.0d0 * sqrt(((y * x) + (x * z)))
    else if (y <= 9.2d-306) then
        tmp = 2.0d0 * (exp((0.25d0 * (log((-z - y)) - log(((-1.0d0) / x))))) ** 2.0d0)
    else
        tmp = 2.0d0 * (sqrt((y + x)) * sqrt(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 <= -3.5e+39) {
		tmp = 2.0 * Math.pow(Math.exp((0.25 * (Math.log((-z - x)) - Math.log((-1.0 / y))))), 2.0);
	} else if (y <= -1.1e-191) {
		tmp = 2.0 * Math.sqrt(((y * x) + (x * z)));
	} else if (y <= 9.2e-306) {
		tmp = 2.0 * Math.pow(Math.exp((0.25 * (Math.log((-z - y)) - Math.log((-1.0 / x))))), 2.0);
	} else {
		tmp = 2.0 * (Math.sqrt((y + x)) * Math.sqrt(z));
	}
	return tmp;
}
[x, y, z] = sort([x, y, z])
def code(x, y, z):
	tmp = 0
	if y <= -3.5e+39:
		tmp = 2.0 * math.pow(math.exp((0.25 * (math.log((-z - x)) - math.log((-1.0 / y))))), 2.0)
	elif y <= -1.1e-191:
		tmp = 2.0 * math.sqrt(((y * x) + (x * z)))
	elif y <= 9.2e-306:
		tmp = 2.0 * math.pow(math.exp((0.25 * (math.log((-z - y)) - math.log((-1.0 / x))))), 2.0)
	else:
		tmp = 2.0 * (math.sqrt((y + x)) * math.sqrt(z))
	return tmp
x, y, z = sort([x, y, z])
function code(x, y, z)
	tmp = 0.0
	if (y <= -3.5e+39)
		tmp = Float64(2.0 * (exp(Float64(0.25 * Float64(log(Float64(Float64(-z) - x)) - log(Float64(-1.0 / y))))) ^ 2.0));
	elseif (y <= -1.1e-191)
		tmp = Float64(2.0 * sqrt(Float64(Float64(y * x) + Float64(x * z))));
	elseif (y <= 9.2e-306)
		tmp = Float64(2.0 * (exp(Float64(0.25 * Float64(log(Float64(Float64(-z) - y)) - log(Float64(-1.0 / x))))) ^ 2.0));
	else
		tmp = Float64(2.0 * Float64(sqrt(Float64(y + x)) * sqrt(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 <= -3.5e+39)
		tmp = 2.0 * (exp((0.25 * (log((-z - x)) - log((-1.0 / y))))) ^ 2.0);
	elseif (y <= -1.1e-191)
		tmp = 2.0 * sqrt(((y * x) + (x * z)));
	elseif (y <= 9.2e-306)
		tmp = 2.0 * (exp((0.25 * (log((-z - y)) - log((-1.0 / x))))) ^ 2.0);
	else
		tmp = 2.0 * (sqrt((y + x)) * sqrt(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, -3.5e+39], N[(2.0 * N[Power[N[Exp[N[(0.25 * N[(N[Log[N[((-z) - x), $MachinePrecision]], $MachinePrecision] - N[Log[N[(-1.0 / y), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision], If[LessEqual[y, -1.1e-191], N[(2.0 * N[Sqrt[N[(N[(y * x), $MachinePrecision] + N[(x * z), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 9.2e-306], N[(2.0 * N[Power[N[Exp[N[(0.25 * N[(N[Log[N[((-z) - y), $MachinePrecision]], $MachinePrecision] - N[Log[N[(-1.0 / x), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision], N[(2.0 * N[(N[Sqrt[N[(y + x), $MachinePrecision]], $MachinePrecision] * N[Sqrt[z], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}
[x, y, z] = \mathsf{sort}([x, y, z])\\
\\
\begin{array}{l}
\mathbf{if}\;y \leq -3.5 \cdot 10^{+39}:\\
\;\;\;\;2 \cdot {\left(e^{0.25 \cdot \left(\log \left(\left(-z\right) - x\right) - \log \left(\frac{-1}{y}\right)\right)}\right)}^{2}\\

\mathbf{elif}\;y \leq -1.1 \cdot 10^{-191}:\\
\;\;\;\;2 \cdot \sqrt{y \cdot x + x \cdot z}\\

\mathbf{elif}\;y \leq 9.2 \cdot 10^{-306}:\\
\;\;\;\;2 \cdot {\left(e^{0.25 \cdot \left(\log \left(\left(-z\right) - y\right) - \log \left(\frac{-1}{x}\right)\right)}\right)}^{2}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if y < -3.5000000000000002e39

    1. Initial program 62.7%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. associate-+l+62.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y + \left(x \cdot z + y \cdot z\right)}} \]
      2. distribute-rgt-out62.7%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(x + y\right)}} \]
      3. +-commutative62.7%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + z \cdot \color{blue}{\left(y + x\right)}} \]
    3. Simplified62.7%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Step-by-step derivation
      1. distribute-rgt-in62.7%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{\left(y \cdot z + x \cdot z\right)}} \]
      2. associate-+r+62.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(x \cdot y + y \cdot z\right) + x \cdot z}} \]
      3. *-commutative62.7%

        \[\leadsto 2 \cdot \sqrt{\left(\color{blue}{y \cdot x} + y \cdot z\right) + x \cdot z} \]
      4. distribute-lft-in62.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot \left(x + z\right)} + x \cdot z} \]
      5. +-commutative62.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot z + y \cdot \left(x + z\right)}} \]
      6. fma-udef62.9%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)}} \]
      7. add-sqr-sqrt62.4%

        \[\leadsto 2 \cdot \color{blue}{\left(\sqrt{\sqrt{\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)}} \cdot \sqrt{\sqrt{\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)}}\right)} \]
      8. pow262.4%

        \[\leadsto 2 \cdot \color{blue}{{\left(\sqrt{\sqrt{\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)}}\right)}^{2}} \]
      9. pow1/262.8%

        \[\leadsto 2 \cdot {\left(\sqrt{\color{blue}{{\left(\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)\right)}^{0.5}}}\right)}^{2} \]
      10. sqrt-pow162.8%

        \[\leadsto 2 \cdot {\color{blue}{\left({\left(\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)\right)}^{\left(\frac{0.5}{2}\right)}\right)}}^{2} \]
      11. fma-udef62.3%

        \[\leadsto 2 \cdot {\left({\color{blue}{\left(x \cdot z + y \cdot \left(x + z\right)\right)}}^{\left(\frac{0.5}{2}\right)}\right)}^{2} \]
      12. +-commutative62.3%

        \[\leadsto 2 \cdot {\left({\color{blue}{\left(y \cdot \left(x + z\right) + x \cdot z\right)}}^{\left(\frac{0.5}{2}\right)}\right)}^{2} \]
      13. fma-def62.8%

        \[\leadsto 2 \cdot {\left({\color{blue}{\left(\mathsf{fma}\left(y, x + z, x \cdot z\right)\right)}}^{\left(\frac{0.5}{2}\right)}\right)}^{2} \]
      14. metadata-eval62.8%

        \[\leadsto 2 \cdot {\left({\left(\mathsf{fma}\left(y, x + z, x \cdot z\right)\right)}^{\color{blue}{0.25}}\right)}^{2} \]
    5. Applied egg-rr62.8%

      \[\leadsto 2 \cdot \color{blue}{{\left({\left(\mathsf{fma}\left(y, x + z, x \cdot z\right)\right)}^{0.25}\right)}^{2}} \]
    6. Taylor expanded in y around -inf 82.7%

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

    if -3.5000000000000002e39 < y < -1.09999999999999999e-191

    1. Initial program 92.7%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. associate-+l+92.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y + \left(x \cdot z + y \cdot z\right)}} \]
      2. distribute-rgt-out92.6%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(x + y\right)}} \]
      3. +-commutative92.6%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + z \cdot \color{blue}{\left(y + x\right)}} \]
    3. Simplified92.6%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Step-by-step derivation
      1. flip-+72.4%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + z \cdot \color{blue}{\frac{y \cdot y - x \cdot x}{y - x}}} \]
      2. associate-*r/66.3%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{\frac{z \cdot \left(y \cdot y - x \cdot x\right)}{y - x}}} \]
      3. pow266.3%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \frac{z \cdot \left(\color{blue}{{y}^{2}} - x \cdot x\right)}{y - x}} \]
      4. pow266.3%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \frac{z \cdot \left({y}^{2} - \color{blue}{{x}^{2}}\right)}{y - x}} \]
    5. Applied egg-rr66.3%

      \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{\frac{z \cdot \left({y}^{2} - {x}^{2}\right)}{y - x}}} \]
    6. Step-by-step derivation
      1. *-commutative66.3%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \frac{\color{blue}{\left({y}^{2} - {x}^{2}\right) \cdot z}}{y - x}} \]
      2. associate-/l*67.9%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{\frac{{y}^{2} - {x}^{2}}{\frac{y - x}{z}}}} \]
    7. Simplified67.9%

      \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{\frac{{y}^{2} - {x}^{2}}{\frac{y - x}{z}}}} \]
    8. Taylor expanded in y around 0 69.5%

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

    if -1.09999999999999999e-191 < y < 9.19999999999999956e-306

    1. Initial program 82.9%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. associate-+l+82.9%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y + \left(x \cdot z + y \cdot z\right)}} \]
      2. distribute-rgt-out82.9%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(x + y\right)}} \]
      3. +-commutative82.9%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + z \cdot \color{blue}{\left(y + x\right)}} \]
    3. Simplified82.9%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Step-by-step derivation
      1. distribute-rgt-in82.9%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{\left(y \cdot z + x \cdot z\right)}} \]
      2. associate-+r+82.9%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(x \cdot y + y \cdot z\right) + x \cdot z}} \]
      3. *-commutative82.9%

        \[\leadsto 2 \cdot \sqrt{\left(\color{blue}{y \cdot x} + y \cdot z\right) + x \cdot z} \]
      4. distribute-lft-in82.9%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot \left(x + z\right)} + x \cdot z} \]
      5. +-commutative82.9%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot z + y \cdot \left(x + z\right)}} \]
      6. fma-udef82.9%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)}} \]
      7. add-sqr-sqrt82.4%

        \[\leadsto 2 \cdot \color{blue}{\left(\sqrt{\sqrt{\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)}} \cdot \sqrt{\sqrt{\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)}}\right)} \]
      8. pow282.4%

        \[\leadsto 2 \cdot \color{blue}{{\left(\sqrt{\sqrt{\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)}}\right)}^{2}} \]
      9. pow1/282.4%

        \[\leadsto 2 \cdot {\left(\sqrt{\color{blue}{{\left(\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)\right)}^{0.5}}}\right)}^{2} \]
      10. sqrt-pow182.4%

        \[\leadsto 2 \cdot {\color{blue}{\left({\left(\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)\right)}^{\left(\frac{0.5}{2}\right)}\right)}}^{2} \]
      11. fma-udef82.4%

        \[\leadsto 2 \cdot {\left({\color{blue}{\left(x \cdot z + y \cdot \left(x + z\right)\right)}}^{\left(\frac{0.5}{2}\right)}\right)}^{2} \]
      12. +-commutative82.4%

        \[\leadsto 2 \cdot {\left({\color{blue}{\left(y \cdot \left(x + z\right) + x \cdot z\right)}}^{\left(\frac{0.5}{2}\right)}\right)}^{2} \]
      13. fma-def82.4%

        \[\leadsto 2 \cdot {\left({\color{blue}{\left(\mathsf{fma}\left(y, x + z, x \cdot z\right)\right)}}^{\left(\frac{0.5}{2}\right)}\right)}^{2} \]
      14. metadata-eval82.4%

        \[\leadsto 2 \cdot {\left({\left(\mathsf{fma}\left(y, x + z, x \cdot z\right)\right)}^{\color{blue}{0.25}}\right)}^{2} \]
    5. Applied egg-rr82.4%

      \[\leadsto 2 \cdot \color{blue}{{\left({\left(\mathsf{fma}\left(y, x + z, x \cdot z\right)\right)}^{0.25}\right)}^{2}} \]
    6. Taylor expanded in x around -inf 43.1%

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

    if 9.19999999999999956e-306 < y

    1. Initial program 69.1%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. associate-+l+69.1%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y + \left(x \cdot z + y \cdot z\right)}} \]
      2. distribute-rgt-out69.1%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(x + y\right)}} \]
      3. +-commutative69.1%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + z \cdot \color{blue}{\left(y + x\right)}} \]
    3. Simplified69.1%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Taylor expanded in z around inf 47.3%

      \[\leadsto 2 \cdot \sqrt{\color{blue}{z \cdot \left(x + y\right)}} \]
    5. Step-by-step derivation
      1. +-commutative47.3%

        \[\leadsto 2 \cdot \sqrt{z \cdot \color{blue}{\left(y + x\right)}} \]
    6. Simplified47.3%

      \[\leadsto 2 \cdot \sqrt{\color{blue}{z \cdot \left(y + x\right)}} \]
    7. Step-by-step derivation
      1. *-commutative47.3%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(y + x\right) \cdot z}} \]
      2. sqrt-prod53.0%

        \[\leadsto 2 \cdot \color{blue}{\left(\sqrt{y + x} \cdot \sqrt{z}\right)} \]
    8. Applied egg-rr53.0%

      \[\leadsto 2 \cdot \color{blue}{\left(\sqrt{y + x} \cdot \sqrt{z}\right)} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification60.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -3.5 \cdot 10^{+39}:\\ \;\;\;\;2 \cdot {\left(e^{0.25 \cdot \left(\log \left(\left(-z\right) - x\right) - \log \left(\frac{-1}{y}\right)\right)}\right)}^{2}\\ \mathbf{elif}\;y \leq -1.1 \cdot 10^{-191}:\\ \;\;\;\;2 \cdot \sqrt{y \cdot x + x \cdot z}\\ \mathbf{elif}\;y \leq 9.2 \cdot 10^{-306}:\\ \;\;\;\;2 \cdot {\left(e^{0.25 \cdot \left(\log \left(\left(-z\right) - y\right) - \log \left(\frac{-1}{x}\right)\right)}\right)}^{2}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \left(\sqrt{y + x} \cdot \sqrt{z}\right)\\ \end{array} \]

Alternative 2: 94.8% accurate, 0.3× speedup?

\[\begin{array}{l} [x, y, z] = \mathsf{sort}([x, y, z])\\ \\ \begin{array}{l} \mathbf{if}\;y \leq -7.2 \cdot 10^{+39}:\\ \;\;\;\;2 \cdot {\left(e^{0.25}\right)}^{\left(2 \cdot \left(\log \left(\left(-z\right) - y\right) - \log \left(\frac{-1}{x}\right)\right)\right)}\\ \mathbf{elif}\;y \leq 5 \cdot 10^{-297}:\\ \;\;\;\;2 \cdot \sqrt{y \cdot x + x \cdot z}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \left(\sqrt{y + x} \cdot \sqrt{z}\right)\\ \end{array} \end{array} \]
NOTE: x, y, and z should be sorted in increasing order before calling this function.
(FPCore (x y z)
 :precision binary64
 (if (<= y -7.2e+39)
   (* 2.0 (pow (exp 0.25) (* 2.0 (- (log (- (- z) y)) (log (/ -1.0 x))))))
   (if (<= y 5e-297)
     (* 2.0 (sqrt (+ (* y x) (* x z))))
     (* 2.0 (* (sqrt (+ y x)) (sqrt z))))))
assert(x < y && y < z);
double code(double x, double y, double z) {
	double tmp;
	if (y <= -7.2e+39) {
		tmp = 2.0 * pow(exp(0.25), (2.0 * (log((-z - y)) - log((-1.0 / x)))));
	} else if (y <= 5e-297) {
		tmp = 2.0 * sqrt(((y * x) + (x * z)));
	} else {
		tmp = 2.0 * (sqrt((y + x)) * sqrt(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 <= (-7.2d+39)) then
        tmp = 2.0d0 * (exp(0.25d0) ** (2.0d0 * (log((-z - y)) - log(((-1.0d0) / x)))))
    else if (y <= 5d-297) then
        tmp = 2.0d0 * sqrt(((y * x) + (x * z)))
    else
        tmp = 2.0d0 * (sqrt((y + x)) * sqrt(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 <= -7.2e+39) {
		tmp = 2.0 * Math.pow(Math.exp(0.25), (2.0 * (Math.log((-z - y)) - Math.log((-1.0 / x)))));
	} else if (y <= 5e-297) {
		tmp = 2.0 * Math.sqrt(((y * x) + (x * z)));
	} else {
		tmp = 2.0 * (Math.sqrt((y + x)) * Math.sqrt(z));
	}
	return tmp;
}
[x, y, z] = sort([x, y, z])
def code(x, y, z):
	tmp = 0
	if y <= -7.2e+39:
		tmp = 2.0 * math.pow(math.exp(0.25), (2.0 * (math.log((-z - y)) - math.log((-1.0 / x)))))
	elif y <= 5e-297:
		tmp = 2.0 * math.sqrt(((y * x) + (x * z)))
	else:
		tmp = 2.0 * (math.sqrt((y + x)) * math.sqrt(z))
	return tmp
x, y, z = sort([x, y, z])
function code(x, y, z)
	tmp = 0.0
	if (y <= -7.2e+39)
		tmp = Float64(2.0 * (exp(0.25) ^ Float64(2.0 * Float64(log(Float64(Float64(-z) - y)) - log(Float64(-1.0 / x))))));
	elseif (y <= 5e-297)
		tmp = Float64(2.0 * sqrt(Float64(Float64(y * x) + Float64(x * z))));
	else
		tmp = Float64(2.0 * Float64(sqrt(Float64(y + x)) * sqrt(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 <= -7.2e+39)
		tmp = 2.0 * (exp(0.25) ^ (2.0 * (log((-z - y)) - log((-1.0 / x)))));
	elseif (y <= 5e-297)
		tmp = 2.0 * sqrt(((y * x) + (x * z)));
	else
		tmp = 2.0 * (sqrt((y + x)) * sqrt(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, -7.2e+39], N[(2.0 * N[Power[N[Exp[0.25], $MachinePrecision], N[(2.0 * N[(N[Log[N[((-z) - y), $MachinePrecision]], $MachinePrecision] - N[Log[N[(-1.0 / x), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 5e-297], N[(2.0 * N[Sqrt[N[(N[(y * x), $MachinePrecision] + N[(x * z), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], N[(2.0 * N[(N[Sqrt[N[(y + x), $MachinePrecision]], $MachinePrecision] * N[Sqrt[z], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
[x, y, z] = \mathsf{sort}([x, y, z])\\
\\
\begin{array}{l}
\mathbf{if}\;y \leq -7.2 \cdot 10^{+39}:\\
\;\;\;\;2 \cdot {\left(e^{0.25}\right)}^{\left(2 \cdot \left(\log \left(\left(-z\right) - y\right) - \log \left(\frac{-1}{x}\right)\right)\right)}\\

\mathbf{elif}\;y \leq 5 \cdot 10^{-297}:\\
\;\;\;\;2 \cdot \sqrt{y \cdot x + x \cdot z}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -7.19999999999999969e39

    1. Initial program 62.7%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. associate-+l+62.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y + \left(x \cdot z + y \cdot z\right)}} \]
      2. distribute-rgt-out62.7%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(x + y\right)}} \]
      3. +-commutative62.7%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + z \cdot \color{blue}{\left(y + x\right)}} \]
    3. Simplified62.7%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Step-by-step derivation
      1. distribute-rgt-in62.7%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{\left(y \cdot z + x \cdot z\right)}} \]
      2. associate-+r+62.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(x \cdot y + y \cdot z\right) + x \cdot z}} \]
      3. *-commutative62.7%

        \[\leadsto 2 \cdot \sqrt{\left(\color{blue}{y \cdot x} + y \cdot z\right) + x \cdot z} \]
      4. distribute-lft-in62.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot \left(x + z\right)} + x \cdot z} \]
      5. +-commutative62.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot z + y \cdot \left(x + z\right)}} \]
      6. fma-udef62.9%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)}} \]
      7. add-sqr-sqrt62.4%

        \[\leadsto 2 \cdot \color{blue}{\left(\sqrt{\sqrt{\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)}} \cdot \sqrt{\sqrt{\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)}}\right)} \]
      8. pow262.4%

        \[\leadsto 2 \cdot \color{blue}{{\left(\sqrt{\sqrt{\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)}}\right)}^{2}} \]
      9. pow1/262.8%

        \[\leadsto 2 \cdot {\left(\sqrt{\color{blue}{{\left(\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)\right)}^{0.5}}}\right)}^{2} \]
      10. sqrt-pow162.8%

        \[\leadsto 2 \cdot {\color{blue}{\left({\left(\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)\right)}^{\left(\frac{0.5}{2}\right)}\right)}}^{2} \]
      11. fma-udef62.3%

        \[\leadsto 2 \cdot {\left({\color{blue}{\left(x \cdot z + y \cdot \left(x + z\right)\right)}}^{\left(\frac{0.5}{2}\right)}\right)}^{2} \]
      12. +-commutative62.3%

        \[\leadsto 2 \cdot {\left({\color{blue}{\left(y \cdot \left(x + z\right) + x \cdot z\right)}}^{\left(\frac{0.5}{2}\right)}\right)}^{2} \]
      13. fma-def62.8%

        \[\leadsto 2 \cdot {\left({\color{blue}{\left(\mathsf{fma}\left(y, x + z, x \cdot z\right)\right)}}^{\left(\frac{0.5}{2}\right)}\right)}^{2} \]
      14. metadata-eval62.8%

        \[\leadsto 2 \cdot {\left({\left(\mathsf{fma}\left(y, x + z, x \cdot z\right)\right)}^{\color{blue}{0.25}}\right)}^{2} \]
    5. Applied egg-rr62.8%

      \[\leadsto 2 \cdot \color{blue}{{\left({\left(\mathsf{fma}\left(y, x + z, x \cdot z\right)\right)}^{0.25}\right)}^{2}} \]
    6. Taylor expanded in x around -inf 48.7%

      \[\leadsto 2 \cdot \color{blue}{{\left(e^{0.25 \cdot \left(\log \left(-1 \cdot y + -1 \cdot z\right) + -1 \cdot \log \left(\frac{-1}{x}\right)\right)}\right)}^{2}} \]
    7. Step-by-step derivation
      1. unpow248.7%

        \[\leadsto 2 \cdot \color{blue}{\left(e^{0.25 \cdot \left(\log \left(-1 \cdot y + -1 \cdot z\right) + -1 \cdot \log \left(\frac{-1}{x}\right)\right)} \cdot e^{0.25 \cdot \left(\log \left(-1 \cdot y + -1 \cdot z\right) + -1 \cdot \log \left(\frac{-1}{x}\right)\right)}\right)} \]
      2. exp-prod47.6%

        \[\leadsto 2 \cdot \left(\color{blue}{{\left(e^{0.25}\right)}^{\left(\log \left(-1 \cdot y + -1 \cdot z\right) + -1 \cdot \log \left(\frac{-1}{x}\right)\right)}} \cdot e^{0.25 \cdot \left(\log \left(-1 \cdot y + -1 \cdot z\right) + -1 \cdot \log \left(\frac{-1}{x}\right)\right)}\right) \]
      3. exp-prod46.7%

        \[\leadsto 2 \cdot \left({\left(e^{0.25}\right)}^{\left(\log \left(-1 \cdot y + -1 \cdot z\right) + -1 \cdot \log \left(\frac{-1}{x}\right)\right)} \cdot \color{blue}{{\left(e^{0.25}\right)}^{\left(\log \left(-1 \cdot y + -1 \cdot z\right) + -1 \cdot \log \left(\frac{-1}{x}\right)\right)}}\right) \]
      4. pow-sqr46.7%

        \[\leadsto 2 \cdot \color{blue}{{\left(e^{0.25}\right)}^{\left(2 \cdot \left(\log \left(-1 \cdot y + -1 \cdot z\right) + -1 \cdot \log \left(\frac{-1}{x}\right)\right)\right)}} \]
      5. mul-1-neg46.7%

        \[\leadsto 2 \cdot {\left(e^{0.25}\right)}^{\left(2 \cdot \left(\log \left(-1 \cdot y + -1 \cdot z\right) + \color{blue}{\left(-\log \left(\frac{-1}{x}\right)\right)}\right)\right)} \]
      6. unsub-neg46.7%

        \[\leadsto 2 \cdot {\left(e^{0.25}\right)}^{\left(2 \cdot \color{blue}{\left(\log \left(-1 \cdot y + -1 \cdot z\right) - \log \left(\frac{-1}{x}\right)\right)}\right)} \]
      7. +-commutative46.7%

        \[\leadsto 2 \cdot {\left(e^{0.25}\right)}^{\left(2 \cdot \left(\log \color{blue}{\left(-1 \cdot z + -1 \cdot y\right)} - \log \left(\frac{-1}{x}\right)\right)\right)} \]
      8. mul-1-neg46.7%

        \[\leadsto 2 \cdot {\left(e^{0.25}\right)}^{\left(2 \cdot \left(\log \left(-1 \cdot z + \color{blue}{\left(-y\right)}\right) - \log \left(\frac{-1}{x}\right)\right)\right)} \]
      9. unsub-neg46.7%

        \[\leadsto 2 \cdot {\left(e^{0.25}\right)}^{\left(2 \cdot \left(\log \color{blue}{\left(-1 \cdot z - y\right)} - \log \left(\frac{-1}{x}\right)\right)\right)} \]
      10. neg-mul-146.7%

        \[\leadsto 2 \cdot {\left(e^{0.25}\right)}^{\left(2 \cdot \left(\log \left(\color{blue}{\left(-z\right)} - y\right) - \log \left(\frac{-1}{x}\right)\right)\right)} \]
    8. Simplified46.7%

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

    if -7.19999999999999969e39 < y < 5e-297

    1. Initial program 88.0%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. associate-+l+88.0%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y + \left(x \cdot z + y \cdot z\right)}} \]
      2. distribute-rgt-out87.9%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(x + y\right)}} \]
      3. +-commutative87.9%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + z \cdot \color{blue}{\left(y + x\right)}} \]
    3. Simplified87.9%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Step-by-step derivation
      1. flip-+66.6%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + z \cdot \color{blue}{\frac{y \cdot y - x \cdot x}{y - x}}} \]
      2. associate-*r/61.2%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{\frac{z \cdot \left(y \cdot y - x \cdot x\right)}{y - x}}} \]
      3. pow261.2%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \frac{z \cdot \left(\color{blue}{{y}^{2}} - x \cdot x\right)}{y - x}} \]
      4. pow261.2%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \frac{z \cdot \left({y}^{2} - \color{blue}{{x}^{2}}\right)}{y - x}} \]
    5. Applied egg-rr61.2%

      \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{\frac{z \cdot \left({y}^{2} - {x}^{2}\right)}{y - x}}} \]
    6. Step-by-step derivation
      1. *-commutative61.2%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \frac{\color{blue}{\left({y}^{2} - {x}^{2}\right) \cdot z}}{y - x}} \]
      2. associate-/l*61.7%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{\frac{{y}^{2} - {x}^{2}}{\frac{y - x}{z}}}} \]
    7. Simplified61.7%

      \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{\frac{{y}^{2} - {x}^{2}}{\frac{y - x}{z}}}} \]
    8. Taylor expanded in y around 0 69.3%

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

    if 5e-297 < y

    1. Initial program 69.6%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. associate-+l+69.6%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y + \left(x \cdot z + y \cdot z\right)}} \]
      2. distribute-rgt-out69.6%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(x + y\right)}} \]
      3. +-commutative69.6%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + z \cdot \color{blue}{\left(y + x\right)}} \]
    3. Simplified69.6%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Taylor expanded in z around inf 47.6%

      \[\leadsto 2 \cdot \sqrt{\color{blue}{z \cdot \left(x + y\right)}} \]
    5. Step-by-step derivation
      1. +-commutative47.6%

        \[\leadsto 2 \cdot \sqrt{z \cdot \color{blue}{\left(y + x\right)}} \]
    6. Simplified47.6%

      \[\leadsto 2 \cdot \sqrt{\color{blue}{z \cdot \left(y + x\right)}} \]
    7. Step-by-step derivation
      1. *-commutative47.6%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(y + x\right) \cdot z}} \]
      2. sqrt-prod52.7%

        \[\leadsto 2 \cdot \color{blue}{\left(\sqrt{y + x} \cdot \sqrt{z}\right)} \]
    8. Applied egg-rr52.7%

      \[\leadsto 2 \cdot \color{blue}{\left(\sqrt{y + x} \cdot \sqrt{z}\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification57.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -7.2 \cdot 10^{+39}:\\ \;\;\;\;2 \cdot {\left(e^{0.25}\right)}^{\left(2 \cdot \left(\log \left(\left(-z\right) - y\right) - \log \left(\frac{-1}{x}\right)\right)\right)}\\ \mathbf{elif}\;y \leq 5 \cdot 10^{-297}:\\ \;\;\;\;2 \cdot \sqrt{y \cdot x + x \cdot z}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \left(\sqrt{y + x} \cdot \sqrt{z}\right)\\ \end{array} \]

Alternative 3: 95.6% accurate, 0.3× speedup?

\[\begin{array}{l} [x, y, z] = \mathsf{sort}([x, y, z])\\ \\ \begin{array}{l} \mathbf{if}\;y \leq -4.8 \cdot 10^{+39}:\\ \;\;\;\;2 \cdot {\left(e^{0.25 \cdot \left(\log \left(\left(-z\right) - x\right) - \log \left(\frac{-1}{y}\right)\right)}\right)}^{2}\\ \mathbf{elif}\;y \leq 5 \cdot 10^{-297}:\\ \;\;\;\;2 \cdot \sqrt{y \cdot x + x \cdot z}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \left(\sqrt{y + x} \cdot \sqrt{z}\right)\\ \end{array} \end{array} \]
NOTE: x, y, and z should be sorted in increasing order before calling this function.
(FPCore (x y z)
 :precision binary64
 (if (<= y -4.8e+39)
   (* 2.0 (pow (exp (* 0.25 (- (log (- (- z) x)) (log (/ -1.0 y))))) 2.0))
   (if (<= y 5e-297)
     (* 2.0 (sqrt (+ (* y x) (* x z))))
     (* 2.0 (* (sqrt (+ y x)) (sqrt z))))))
assert(x < y && y < z);
double code(double x, double y, double z) {
	double tmp;
	if (y <= -4.8e+39) {
		tmp = 2.0 * pow(exp((0.25 * (log((-z - x)) - log((-1.0 / y))))), 2.0);
	} else if (y <= 5e-297) {
		tmp = 2.0 * sqrt(((y * x) + (x * z)));
	} else {
		tmp = 2.0 * (sqrt((y + x)) * sqrt(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 <= (-4.8d+39)) then
        tmp = 2.0d0 * (exp((0.25d0 * (log((-z - x)) - log(((-1.0d0) / y))))) ** 2.0d0)
    else if (y <= 5d-297) then
        tmp = 2.0d0 * sqrt(((y * x) + (x * z)))
    else
        tmp = 2.0d0 * (sqrt((y + x)) * sqrt(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 <= -4.8e+39) {
		tmp = 2.0 * Math.pow(Math.exp((0.25 * (Math.log((-z - x)) - Math.log((-1.0 / y))))), 2.0);
	} else if (y <= 5e-297) {
		tmp = 2.0 * Math.sqrt(((y * x) + (x * z)));
	} else {
		tmp = 2.0 * (Math.sqrt((y + x)) * Math.sqrt(z));
	}
	return tmp;
}
[x, y, z] = sort([x, y, z])
def code(x, y, z):
	tmp = 0
	if y <= -4.8e+39:
		tmp = 2.0 * math.pow(math.exp((0.25 * (math.log((-z - x)) - math.log((-1.0 / y))))), 2.0)
	elif y <= 5e-297:
		tmp = 2.0 * math.sqrt(((y * x) + (x * z)))
	else:
		tmp = 2.0 * (math.sqrt((y + x)) * math.sqrt(z))
	return tmp
x, y, z = sort([x, y, z])
function code(x, y, z)
	tmp = 0.0
	if (y <= -4.8e+39)
		tmp = Float64(2.0 * (exp(Float64(0.25 * Float64(log(Float64(Float64(-z) - x)) - log(Float64(-1.0 / y))))) ^ 2.0));
	elseif (y <= 5e-297)
		tmp = Float64(2.0 * sqrt(Float64(Float64(y * x) + Float64(x * z))));
	else
		tmp = Float64(2.0 * Float64(sqrt(Float64(y + x)) * sqrt(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 <= -4.8e+39)
		tmp = 2.0 * (exp((0.25 * (log((-z - x)) - log((-1.0 / y))))) ^ 2.0);
	elseif (y <= 5e-297)
		tmp = 2.0 * sqrt(((y * x) + (x * z)));
	else
		tmp = 2.0 * (sqrt((y + x)) * sqrt(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, -4.8e+39], N[(2.0 * N[Power[N[Exp[N[(0.25 * N[(N[Log[N[((-z) - x), $MachinePrecision]], $MachinePrecision] - N[Log[N[(-1.0 / y), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 5e-297], N[(2.0 * N[Sqrt[N[(N[(y * x), $MachinePrecision] + N[(x * z), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], N[(2.0 * N[(N[Sqrt[N[(y + x), $MachinePrecision]], $MachinePrecision] * N[Sqrt[z], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
[x, y, z] = \mathsf{sort}([x, y, z])\\
\\
\begin{array}{l}
\mathbf{if}\;y \leq -4.8 \cdot 10^{+39}:\\
\;\;\;\;2 \cdot {\left(e^{0.25 \cdot \left(\log \left(\left(-z\right) - x\right) - \log \left(\frac{-1}{y}\right)\right)}\right)}^{2}\\

\mathbf{elif}\;y \leq 5 \cdot 10^{-297}:\\
\;\;\;\;2 \cdot \sqrt{y \cdot x + x \cdot z}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -4.8000000000000002e39

    1. Initial program 62.7%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. associate-+l+62.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y + \left(x \cdot z + y \cdot z\right)}} \]
      2. distribute-rgt-out62.7%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(x + y\right)}} \]
      3. +-commutative62.7%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + z \cdot \color{blue}{\left(y + x\right)}} \]
    3. Simplified62.7%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Step-by-step derivation
      1. distribute-rgt-in62.7%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{\left(y \cdot z + x \cdot z\right)}} \]
      2. associate-+r+62.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(x \cdot y + y \cdot z\right) + x \cdot z}} \]
      3. *-commutative62.7%

        \[\leadsto 2 \cdot \sqrt{\left(\color{blue}{y \cdot x} + y \cdot z\right) + x \cdot z} \]
      4. distribute-lft-in62.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot \left(x + z\right)} + x \cdot z} \]
      5. +-commutative62.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot z + y \cdot \left(x + z\right)}} \]
      6. fma-udef62.9%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)}} \]
      7. add-sqr-sqrt62.4%

        \[\leadsto 2 \cdot \color{blue}{\left(\sqrt{\sqrt{\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)}} \cdot \sqrt{\sqrt{\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)}}\right)} \]
      8. pow262.4%

        \[\leadsto 2 \cdot \color{blue}{{\left(\sqrt{\sqrt{\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)}}\right)}^{2}} \]
      9. pow1/262.8%

        \[\leadsto 2 \cdot {\left(\sqrt{\color{blue}{{\left(\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)\right)}^{0.5}}}\right)}^{2} \]
      10. sqrt-pow162.8%

        \[\leadsto 2 \cdot {\color{blue}{\left({\left(\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)\right)}^{\left(\frac{0.5}{2}\right)}\right)}}^{2} \]
      11. fma-udef62.3%

        \[\leadsto 2 \cdot {\left({\color{blue}{\left(x \cdot z + y \cdot \left(x + z\right)\right)}}^{\left(\frac{0.5}{2}\right)}\right)}^{2} \]
      12. +-commutative62.3%

        \[\leadsto 2 \cdot {\left({\color{blue}{\left(y \cdot \left(x + z\right) + x \cdot z\right)}}^{\left(\frac{0.5}{2}\right)}\right)}^{2} \]
      13. fma-def62.8%

        \[\leadsto 2 \cdot {\left({\color{blue}{\left(\mathsf{fma}\left(y, x + z, x \cdot z\right)\right)}}^{\left(\frac{0.5}{2}\right)}\right)}^{2} \]
      14. metadata-eval62.8%

        \[\leadsto 2 \cdot {\left({\left(\mathsf{fma}\left(y, x + z, x \cdot z\right)\right)}^{\color{blue}{0.25}}\right)}^{2} \]
    5. Applied egg-rr62.8%

      \[\leadsto 2 \cdot \color{blue}{{\left({\left(\mathsf{fma}\left(y, x + z, x \cdot z\right)\right)}^{0.25}\right)}^{2}} \]
    6. Taylor expanded in y around -inf 82.7%

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

    if -4.8000000000000002e39 < y < 5e-297

    1. Initial program 88.0%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. associate-+l+88.0%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y + \left(x \cdot z + y \cdot z\right)}} \]
      2. distribute-rgt-out87.9%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(x + y\right)}} \]
      3. +-commutative87.9%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + z \cdot \color{blue}{\left(y + x\right)}} \]
    3. Simplified87.9%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Step-by-step derivation
      1. flip-+66.6%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + z \cdot \color{blue}{\frac{y \cdot y - x \cdot x}{y - x}}} \]
      2. associate-*r/61.2%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{\frac{z \cdot \left(y \cdot y - x \cdot x\right)}{y - x}}} \]
      3. pow261.2%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \frac{z \cdot \left(\color{blue}{{y}^{2}} - x \cdot x\right)}{y - x}} \]
      4. pow261.2%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \frac{z \cdot \left({y}^{2} - \color{blue}{{x}^{2}}\right)}{y - x}} \]
    5. Applied egg-rr61.2%

      \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{\frac{z \cdot \left({y}^{2} - {x}^{2}\right)}{y - x}}} \]
    6. Step-by-step derivation
      1. *-commutative61.2%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \frac{\color{blue}{\left({y}^{2} - {x}^{2}\right) \cdot z}}{y - x}} \]
      2. associate-/l*61.7%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{\frac{{y}^{2} - {x}^{2}}{\frac{y - x}{z}}}} \]
    7. Simplified61.7%

      \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{\frac{{y}^{2} - {x}^{2}}{\frac{y - x}{z}}}} \]
    8. Taylor expanded in y around 0 69.3%

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

    if 5e-297 < y

    1. Initial program 69.6%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. associate-+l+69.6%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y + \left(x \cdot z + y \cdot z\right)}} \]
      2. distribute-rgt-out69.6%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(x + y\right)}} \]
      3. +-commutative69.6%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + z \cdot \color{blue}{\left(y + x\right)}} \]
    3. Simplified69.6%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Taylor expanded in z around inf 47.6%

      \[\leadsto 2 \cdot \sqrt{\color{blue}{z \cdot \left(x + y\right)}} \]
    5. Step-by-step derivation
      1. +-commutative47.6%

        \[\leadsto 2 \cdot \sqrt{z \cdot \color{blue}{\left(y + x\right)}} \]
    6. Simplified47.6%

      \[\leadsto 2 \cdot \sqrt{\color{blue}{z \cdot \left(y + x\right)}} \]
    7. Step-by-step derivation
      1. *-commutative47.6%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(y + x\right) \cdot z}} \]
      2. sqrt-prod52.7%

        \[\leadsto 2 \cdot \color{blue}{\left(\sqrt{y + x} \cdot \sqrt{z}\right)} \]
    8. Applied egg-rr52.7%

      \[\leadsto 2 \cdot \color{blue}{\left(\sqrt{y + x} \cdot \sqrt{z}\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification63.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -4.8 \cdot 10^{+39}:\\ \;\;\;\;2 \cdot {\left(e^{0.25 \cdot \left(\log \left(\left(-z\right) - x\right) - \log \left(\frac{-1}{y}\right)\right)}\right)}^{2}\\ \mathbf{elif}\;y \leq 5 \cdot 10^{-297}:\\ \;\;\;\;2 \cdot \sqrt{y \cdot x + x \cdot z}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \left(\sqrt{y + x} \cdot \sqrt{z}\right)\\ \end{array} \]

Alternative 4: 85.0% accurate, 0.5× speedup?

\[\begin{array}{l} [x, y, z] = \mathsf{sort}([x, y, z])\\ \\ \begin{array}{l} \mathbf{if}\;y \leq 5 \cdot 10^{-297}:\\ \;\;\;\;2 \cdot \sqrt{\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \left(\sqrt{y + x} \cdot \sqrt{z}\right)\\ \end{array} \end{array} \]
NOTE: x, y, and z should be sorted in increasing order before calling this function.
(FPCore (x y z)
 :precision binary64
 (if (<= y 5e-297)
   (* 2.0 (sqrt (fma x z (* y (+ x z)))))
   (* 2.0 (* (sqrt (+ y x)) (sqrt z)))))
assert(x < y && y < z);
double code(double x, double y, double z) {
	double tmp;
	if (y <= 5e-297) {
		tmp = 2.0 * sqrt(fma(x, z, (y * (x + z))));
	} else {
		tmp = 2.0 * (sqrt((y + x)) * sqrt(z));
	}
	return tmp;
}
x, y, z = sort([x, y, z])
function code(x, y, z)
	tmp = 0.0
	if (y <= 5e-297)
		tmp = Float64(2.0 * sqrt(fma(x, z, Float64(y * Float64(x + z)))));
	else
		tmp = Float64(2.0 * Float64(sqrt(Float64(y + x)) * sqrt(z)));
	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, 5e-297], N[(2.0 * N[Sqrt[N[(x * z + N[(y * N[(x + z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], N[(2.0 * N[(N[Sqrt[N[(y + x), $MachinePrecision]], $MachinePrecision] * N[Sqrt[z], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
[x, y, z] = \mathsf{sort}([x, y, z])\\
\\
\begin{array}{l}
\mathbf{if}\;y \leq 5 \cdot 10^{-297}:\\
\;\;\;\;2 \cdot \sqrt{\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < 5e-297

    1. Initial program 79.1%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. associate-+l+79.1%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y + \left(x \cdot z + y \cdot z\right)}} \]
      2. *-commutative79.1%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot x} + \left(x \cdot z + y \cdot z\right)} \]
      3. *-commutative79.1%

        \[\leadsto 2 \cdot \sqrt{y \cdot x + \left(\color{blue}{z \cdot x} + y \cdot z\right)} \]
      4. *-commutative79.1%

        \[\leadsto 2 \cdot \sqrt{y \cdot x + \left(z \cdot x + \color{blue}{z \cdot y}\right)} \]
      5. +-commutative79.1%

        \[\leadsto 2 \cdot \sqrt{y \cdot x + \color{blue}{\left(z \cdot y + z \cdot x\right)}} \]
      6. +-commutative79.1%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(z \cdot y + z \cdot x\right) + y \cdot x}} \]
      7. +-commutative79.1%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot x + \left(z \cdot y + z \cdot x\right)}} \]
      8. *-commutative79.1%

        \[\leadsto 2 \cdot \sqrt{y \cdot x + \left(\color{blue}{y \cdot z} + z \cdot x\right)} \]
      9. *-commutative79.1%

        \[\leadsto 2 \cdot \sqrt{y \cdot x + \left(y \cdot z + \color{blue}{x \cdot z}\right)} \]
      10. associate-+l+79.1%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(y \cdot x + y \cdot z\right) + x \cdot z}} \]
      11. +-commutative79.1%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot z + \left(y \cdot x + y \cdot z\right)}} \]
      12. fma-def79.1%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\mathsf{fma}\left(x, z, y \cdot x + y \cdot z\right)}} \]
      13. distribute-lft-out79.2%

        \[\leadsto 2 \cdot \sqrt{\mathsf{fma}\left(x, z, \color{blue}{y \cdot \left(x + z\right)}\right)} \]
    3. Simplified79.2%

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

    if 5e-297 < y

    1. Initial program 69.6%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. associate-+l+69.6%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y + \left(x \cdot z + y \cdot z\right)}} \]
      2. distribute-rgt-out69.6%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(x + y\right)}} \]
      3. +-commutative69.6%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + z \cdot \color{blue}{\left(y + x\right)}} \]
    3. Simplified69.6%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Taylor expanded in z around inf 47.6%

      \[\leadsto 2 \cdot \sqrt{\color{blue}{z \cdot \left(x + y\right)}} \]
    5. Step-by-step derivation
      1. +-commutative47.6%

        \[\leadsto 2 \cdot \sqrt{z \cdot \color{blue}{\left(y + x\right)}} \]
    6. Simplified47.6%

      \[\leadsto 2 \cdot \sqrt{\color{blue}{z \cdot \left(y + x\right)}} \]
    7. Step-by-step derivation
      1. *-commutative47.6%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(y + x\right) \cdot z}} \]
      2. sqrt-prod52.7%

        \[\leadsto 2 \cdot \color{blue}{\left(\sqrt{y + x} \cdot \sqrt{z}\right)} \]
    8. Applied egg-rr52.7%

      \[\leadsto 2 \cdot \color{blue}{\left(\sqrt{y + x} \cdot \sqrt{z}\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification66.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq 5 \cdot 10^{-297}:\\ \;\;\;\;2 \cdot \sqrt{\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \left(\sqrt{y + x} \cdot \sqrt{z}\right)\\ \end{array} \]

Alternative 5: 85.0% accurate, 0.5× speedup?

\[\begin{array}{l} [x, y, z] = \mathsf{sort}([x, y, z])\\ \\ \begin{array}{l} \mathbf{if}\;y \leq 5 \cdot 10^{-297}:\\ \;\;\;\;2 \cdot \sqrt{x \cdot \left(y + z\right)}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \left(\sqrt{y + x} \cdot \sqrt{z}\right)\\ \end{array} \end{array} \]
NOTE: x, y, and z should be sorted in increasing order before calling this function.
(FPCore (x y z)
 :precision binary64
 (if (<= y 5e-297)
   (* 2.0 (sqrt (* x (+ y z))))
   (* 2.0 (* (sqrt (+ y x)) (sqrt z)))))
assert(x < y && y < z);
double code(double x, double y, double z) {
	double tmp;
	if (y <= 5e-297) {
		tmp = 2.0 * sqrt((x * (y + z)));
	} else {
		tmp = 2.0 * (sqrt((y + x)) * sqrt(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 <= 5d-297) then
        tmp = 2.0d0 * sqrt((x * (y + z)))
    else
        tmp = 2.0d0 * (sqrt((y + x)) * sqrt(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 <= 5e-297) {
		tmp = 2.0 * Math.sqrt((x * (y + z)));
	} else {
		tmp = 2.0 * (Math.sqrt((y + x)) * Math.sqrt(z));
	}
	return tmp;
}
[x, y, z] = sort([x, y, z])
def code(x, y, z):
	tmp = 0
	if y <= 5e-297:
		tmp = 2.0 * math.sqrt((x * (y + z)))
	else:
		tmp = 2.0 * (math.sqrt((y + x)) * math.sqrt(z))
	return tmp
x, y, z = sort([x, y, z])
function code(x, y, z)
	tmp = 0.0
	if (y <= 5e-297)
		tmp = Float64(2.0 * sqrt(Float64(x * Float64(y + z))));
	else
		tmp = Float64(2.0 * Float64(sqrt(Float64(y + x)) * sqrt(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 <= 5e-297)
		tmp = 2.0 * sqrt((x * (y + z)));
	else
		tmp = 2.0 * (sqrt((y + x)) * sqrt(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, 5e-297], N[(2.0 * N[Sqrt[N[(x * N[(y + z), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], N[(2.0 * N[(N[Sqrt[N[(y + x), $MachinePrecision]], $MachinePrecision] * N[Sqrt[z], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
[x, y, z] = \mathsf{sort}([x, y, z])\\
\\
\begin{array}{l}
\mathbf{if}\;y \leq 5 \cdot 10^{-297}:\\
\;\;\;\;2 \cdot \sqrt{x \cdot \left(y + z\right)}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < 5e-297

    1. Initial program 79.1%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. associate-+l+79.1%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y + \left(x \cdot z + y \cdot z\right)}} \]
      2. distribute-rgt-out79.1%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(x + y\right)}} \]
      3. +-commutative79.1%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + z \cdot \color{blue}{\left(y + x\right)}} \]
    3. Simplified79.1%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Taylor expanded in x around inf 58.9%

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

    if 5e-297 < y

    1. Initial program 69.6%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. associate-+l+69.6%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y + \left(x \cdot z + y \cdot z\right)}} \]
      2. distribute-rgt-out69.6%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(x + y\right)}} \]
      3. +-commutative69.6%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + z \cdot \color{blue}{\left(y + x\right)}} \]
    3. Simplified69.6%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Taylor expanded in z around inf 47.6%

      \[\leadsto 2 \cdot \sqrt{\color{blue}{z \cdot \left(x + y\right)}} \]
    5. Step-by-step derivation
      1. +-commutative47.6%

        \[\leadsto 2 \cdot \sqrt{z \cdot \color{blue}{\left(y + x\right)}} \]
    6. Simplified47.6%

      \[\leadsto 2 \cdot \sqrt{\color{blue}{z \cdot \left(y + x\right)}} \]
    7. Step-by-step derivation
      1. *-commutative47.6%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(y + x\right) \cdot z}} \]
      2. sqrt-prod52.7%

        \[\leadsto 2 \cdot \color{blue}{\left(\sqrt{y + x} \cdot \sqrt{z}\right)} \]
    8. Applied egg-rr52.7%

      \[\leadsto 2 \cdot \color{blue}{\left(\sqrt{y + x} \cdot \sqrt{z}\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification55.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq 5 \cdot 10^{-297}:\\ \;\;\;\;2 \cdot \sqrt{x \cdot \left(y + z\right)}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \left(\sqrt{y + x} \cdot \sqrt{z}\right)\\ \end{array} \]

Alternative 6: 83.3% accurate, 0.5× speedup?

\[\begin{array}{l} [x, y, z] = \mathsf{sort}([x, y, z])\\ \\ \begin{array}{l} \mathbf{if}\;y \leq 5 \cdot 10^{-297}:\\ \;\;\;\;2 \cdot \sqrt{x \cdot \left(y + z\right)}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \left(\sqrt{z} \cdot \sqrt{y}\right)\\ \end{array} \end{array} \]
NOTE: x, y, and z should be sorted in increasing order before calling this function.
(FPCore (x y z)
 :precision binary64
 (if (<= y 5e-297) (* 2.0 (sqrt (* x (+ 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 <= 5e-297) {
		tmp = 2.0 * sqrt((x * (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 <= 5d-297) then
        tmp = 2.0d0 * sqrt((x * (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 <= 5e-297) {
		tmp = 2.0 * Math.sqrt((x * (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 <= 5e-297:
		tmp = 2.0 * math.sqrt((x * (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 <= 5e-297)
		tmp = Float64(2.0 * sqrt(Float64(x * 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 <= 5e-297)
		tmp = 2.0 * sqrt((x * (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, 5e-297], N[(2.0 * N[Sqrt[N[(x * 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 5 \cdot 10^{-297}:\\
\;\;\;\;2 \cdot \sqrt{x \cdot \left(y + z\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 < 5e-297

    1. Initial program 79.1%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. associate-+l+79.1%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y + \left(x \cdot z + y \cdot z\right)}} \]
      2. distribute-rgt-out79.1%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(x + y\right)}} \]
      3. +-commutative79.1%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + z \cdot \color{blue}{\left(y + x\right)}} \]
    3. Simplified79.1%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Taylor expanded in x around inf 58.9%

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

    if 5e-297 < y

    1. Initial program 69.6%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. associate-+l+69.6%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y + \left(x \cdot z + y \cdot z\right)}} \]
      2. distribute-rgt-out69.6%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(x + y\right)}} \]
      3. +-commutative69.6%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + z \cdot \color{blue}{\left(y + x\right)}} \]
    3. Simplified69.6%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Step-by-step derivation
      1. distribute-rgt-in69.6%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{\left(y \cdot z + x \cdot z\right)}} \]
      2. associate-+r+69.6%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(x \cdot y + y \cdot z\right) + x \cdot z}} \]
      3. *-commutative69.6%

        \[\leadsto 2 \cdot \sqrt{\left(\color{blue}{y \cdot x} + y \cdot z\right) + x \cdot z} \]
      4. distribute-lft-in69.6%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot \left(x + z\right)} + x \cdot z} \]
      5. +-commutative69.6%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot z + y \cdot \left(x + z\right)}} \]
      6. fma-udef69.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)}} \]
      7. add-sqr-sqrt69.2%

        \[\leadsto 2 \cdot \color{blue}{\left(\sqrt{\sqrt{\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)}} \cdot \sqrt{\sqrt{\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)}}\right)} \]
      8. pow269.2%

        \[\leadsto 2 \cdot \color{blue}{{\left(\sqrt{\sqrt{\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)}}\right)}^{2}} \]
      9. pow1/269.2%

        \[\leadsto 2 \cdot {\left(\sqrt{\color{blue}{{\left(\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)\right)}^{0.5}}}\right)}^{2} \]
      10. sqrt-pow169.3%

        \[\leadsto 2 \cdot {\color{blue}{\left({\left(\mathsf{fma}\left(x, z, y \cdot \left(x + z\right)\right)\right)}^{\left(\frac{0.5}{2}\right)}\right)}}^{2} \]
      11. fma-udef69.1%

        \[\leadsto 2 \cdot {\left({\color{blue}{\left(x \cdot z + y \cdot \left(x + z\right)\right)}}^{\left(\frac{0.5}{2}\right)}\right)}^{2} \]
      12. +-commutative69.1%

        \[\leadsto 2 \cdot {\left({\color{blue}{\left(y \cdot \left(x + z\right) + x \cdot z\right)}}^{\left(\frac{0.5}{2}\right)}\right)}^{2} \]
      13. fma-def69.3%

        \[\leadsto 2 \cdot {\left({\color{blue}{\left(\mathsf{fma}\left(y, x + z, x \cdot z\right)\right)}}^{\left(\frac{0.5}{2}\right)}\right)}^{2} \]
      14. metadata-eval69.3%

        \[\leadsto 2 \cdot {\left({\left(\mathsf{fma}\left(y, x + z, x \cdot z\right)\right)}^{\color{blue}{0.25}}\right)}^{2} \]
    5. Applied egg-rr69.3%

      \[\leadsto 2 \cdot \color{blue}{{\left({\left(\mathsf{fma}\left(y, x + z, x \cdot z\right)\right)}^{0.25}\right)}^{2}} \]
    6. Taylor expanded in x around 0 26.4%

      \[\leadsto 2 \cdot \color{blue}{\sqrt{y \cdot z}} \]
    7. Step-by-step derivation
      1. *-commutative26.4%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{z \cdot y}} \]
    8. Simplified26.4%

      \[\leadsto 2 \cdot \color{blue}{\sqrt{z \cdot y}} \]
    9. Step-by-step derivation
      1. sqrt-prod36.8%

        \[\leadsto 2 \cdot \color{blue}{\left(\sqrt{z} \cdot \sqrt{y}\right)} \]
    10. Applied egg-rr36.8%

      \[\leadsto 2 \cdot \color{blue}{\left(\sqrt{z} \cdot \sqrt{y}\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification48.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq 5 \cdot 10^{-297}:\\ \;\;\;\;2 \cdot \sqrt{x \cdot \left(y + z\right)}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \left(\sqrt{z} \cdot \sqrt{y}\right)\\ \end{array} \]

Alternative 7: 83.2% accurate, 1.0× speedup?

\[\begin{array}{l} [x, y, z] = \mathsf{sort}([x, y, z])\\ \\ \begin{array}{l} \mathbf{if}\;y \leq -1 \cdot 10^{-299}:\\ \;\;\;\;2 \cdot \sqrt{x \cdot \left(y + z\right)}\\ \mathbf{elif}\;y \leq 440000:\\ \;\;\;\;2 \cdot \sqrt{z \cdot \left(y + x\right)}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \frac{y}{\sqrt{\frac{y - x}{z}}}\\ \end{array} \end{array} \]
NOTE: x, y, and z should be sorted in increasing order before calling this function.
(FPCore (x y z)
 :precision binary64
 (if (<= y -1e-299)
   (* 2.0 (sqrt (* x (+ y z))))
   (if (<= y 440000.0)
     (* 2.0 (sqrt (* z (+ y x))))
     (* 2.0 (/ y (sqrt (/ (- y x) z)))))))
assert(x < y && y < z);
double code(double x, double y, double z) {
	double tmp;
	if (y <= -1e-299) {
		tmp = 2.0 * sqrt((x * (y + z)));
	} else if (y <= 440000.0) {
		tmp = 2.0 * sqrt((z * (y + x)));
	} else {
		tmp = 2.0 * (y / sqrt(((y - x) / 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 <= (-1d-299)) then
        tmp = 2.0d0 * sqrt((x * (y + z)))
    else if (y <= 440000.0d0) then
        tmp = 2.0d0 * sqrt((z * (y + x)))
    else
        tmp = 2.0d0 * (y / sqrt(((y - x) / 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 <= -1e-299) {
		tmp = 2.0 * Math.sqrt((x * (y + z)));
	} else if (y <= 440000.0) {
		tmp = 2.0 * Math.sqrt((z * (y + x)));
	} else {
		tmp = 2.0 * (y / Math.sqrt(((y - x) / z)));
	}
	return tmp;
}
[x, y, z] = sort([x, y, z])
def code(x, y, z):
	tmp = 0
	if y <= -1e-299:
		tmp = 2.0 * math.sqrt((x * (y + z)))
	elif y <= 440000.0:
		tmp = 2.0 * math.sqrt((z * (y + x)))
	else:
		tmp = 2.0 * (y / math.sqrt(((y - x) / z)))
	return tmp
x, y, z = sort([x, y, z])
function code(x, y, z)
	tmp = 0.0
	if (y <= -1e-299)
		tmp = Float64(2.0 * sqrt(Float64(x * Float64(y + z))));
	elseif (y <= 440000.0)
		tmp = Float64(2.0 * sqrt(Float64(z * Float64(y + x))));
	else
		tmp = Float64(2.0 * Float64(y / sqrt(Float64(Float64(y - x) / 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 <= -1e-299)
		tmp = 2.0 * sqrt((x * (y + z)));
	elseif (y <= 440000.0)
		tmp = 2.0 * sqrt((z * (y + x)));
	else
		tmp = 2.0 * (y / sqrt(((y - x) / 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, -1e-299], N[(2.0 * N[Sqrt[N[(x * N[(y + z), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 440000.0], N[(2.0 * N[Sqrt[N[(z * N[(y + x), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], N[(2.0 * N[(y / N[Sqrt[N[(N[(y - x), $MachinePrecision] / z), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
[x, y, z] = \mathsf{sort}([x, y, z])\\
\\
\begin{array}{l}
\mathbf{if}\;y \leq -1 \cdot 10^{-299}:\\
\;\;\;\;2 \cdot \sqrt{x \cdot \left(y + z\right)}\\

\mathbf{elif}\;y \leq 440000:\\
\;\;\;\;2 \cdot \sqrt{z \cdot \left(y + x\right)}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -9.99999999999999992e-300

    1. Initial program 79.3%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. associate-+l+79.3%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y + \left(x \cdot z + y \cdot z\right)}} \]
      2. distribute-rgt-out79.3%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(x + y\right)}} \]
      3. +-commutative79.3%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + z \cdot \color{blue}{\left(y + x\right)}} \]
    3. Simplified79.3%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Taylor expanded in x around inf 58.7%

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

    if -9.99999999999999992e-300 < y < 4.4e5

    1. Initial program 79.5%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. associate-+l+79.5%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y + \left(x \cdot z + y \cdot z\right)}} \]
      2. distribute-rgt-out79.5%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(x + y\right)}} \]
      3. +-commutative79.5%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + z \cdot \color{blue}{\left(y + x\right)}} \]
    3. Simplified79.5%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Taylor expanded in z around inf 65.5%

      \[\leadsto 2 \cdot \sqrt{\color{blue}{z \cdot \left(x + y\right)}} \]
    5. Step-by-step derivation
      1. +-commutative65.5%

        \[\leadsto 2 \cdot \sqrt{z \cdot \color{blue}{\left(y + x\right)}} \]
    6. Simplified65.5%

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

    if 4.4e5 < y

    1. Initial program 59.3%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. associate-+l+59.3%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y + \left(x \cdot z + y \cdot z\right)}} \]
      2. distribute-rgt-out59.4%

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

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

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Taylor expanded in z around inf 30.2%

      \[\leadsto 2 \cdot \sqrt{\color{blue}{z \cdot \left(x + y\right)}} \]
    5. Step-by-step derivation
      1. +-commutative30.2%

        \[\leadsto 2 \cdot \sqrt{z \cdot \color{blue}{\left(y + x\right)}} \]
    6. Simplified30.2%

      \[\leadsto 2 \cdot \sqrt{\color{blue}{z \cdot \left(y + x\right)}} \]
    7. Step-by-step derivation
      1. *-commutative30.2%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(y + x\right) \cdot z}} \]
      2. flip-+22.9%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\frac{y \cdot y - x \cdot x}{y - x}} \cdot z} \]
      3. unpow222.9%

        \[\leadsto 2 \cdot \sqrt{\frac{\color{blue}{{y}^{2}} - x \cdot x}{y - x} \cdot z} \]
      4. unpow222.9%

        \[\leadsto 2 \cdot \sqrt{\frac{{y}^{2} - \color{blue}{{x}^{2}}}{y - x} \cdot z} \]
      5. associate-/r/22.5%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\frac{{y}^{2} - {x}^{2}}{\frac{y - x}{z}}}} \]
      6. sqrt-div23.6%

        \[\leadsto 2 \cdot \color{blue}{\frac{\sqrt{{y}^{2} - {x}^{2}}}{\sqrt{\frac{y - x}{z}}}} \]
    8. Applied egg-rr23.6%

      \[\leadsto 2 \cdot \color{blue}{\frac{\sqrt{{y}^{2} - {x}^{2}}}{\sqrt{\frac{y - x}{z}}}} \]
    9. Taylor expanded in y around inf 45.4%

      \[\leadsto 2 \cdot \frac{\color{blue}{y}}{\sqrt{\frac{y - x}{z}}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification57.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1 \cdot 10^{-299}:\\ \;\;\;\;2 \cdot \sqrt{x \cdot \left(y + z\right)}\\ \mathbf{elif}\;y \leq 440000:\\ \;\;\;\;2 \cdot \sqrt{z \cdot \left(y + x\right)}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \frac{y}{\sqrt{\frac{y - x}{z}}}\\ \end{array} \]

Alternative 8: 83.2% accurate, 1.0× speedup?

\[\begin{array}{l} [x, y, z] = \mathsf{sort}([x, y, z])\\ \\ \begin{array}{l} \mathbf{if}\;y \leq 1120000:\\ \;\;\;\;2 \cdot \sqrt{y \cdot x + z \cdot \left(y + x\right)}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \frac{y}{\sqrt{\frac{y - x}{z}}}\\ \end{array} \end{array} \]
NOTE: x, y, and z should be sorted in increasing order before calling this function.
(FPCore (x y z)
 :precision binary64
 (if (<= y 1120000.0)
   (* 2.0 (sqrt (+ (* y x) (* z (+ y x)))))
   (* 2.0 (/ y (sqrt (/ (- y x) z))))))
assert(x < y && y < z);
double code(double x, double y, double z) {
	double tmp;
	if (y <= 1120000.0) {
		tmp = 2.0 * sqrt(((y * x) + (z * (y + x))));
	} else {
		tmp = 2.0 * (y / sqrt(((y - x) / 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 <= 1120000.0d0) then
        tmp = 2.0d0 * sqrt(((y * x) + (z * (y + x))))
    else
        tmp = 2.0d0 * (y / sqrt(((y - x) / 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 <= 1120000.0) {
		tmp = 2.0 * Math.sqrt(((y * x) + (z * (y + x))));
	} else {
		tmp = 2.0 * (y / Math.sqrt(((y - x) / z)));
	}
	return tmp;
}
[x, y, z] = sort([x, y, z])
def code(x, y, z):
	tmp = 0
	if y <= 1120000.0:
		tmp = 2.0 * math.sqrt(((y * x) + (z * (y + x))))
	else:
		tmp = 2.0 * (y / math.sqrt(((y - x) / z)))
	return tmp
x, y, z = sort([x, y, z])
function code(x, y, z)
	tmp = 0.0
	if (y <= 1120000.0)
		tmp = Float64(2.0 * sqrt(Float64(Float64(y * x) + Float64(z * Float64(y + x)))));
	else
		tmp = Float64(2.0 * Float64(y / sqrt(Float64(Float64(y - x) / 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 <= 1120000.0)
		tmp = 2.0 * sqrt(((y * x) + (z * (y + x))));
	else
		tmp = 2.0 * (y / sqrt(((y - x) / 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, 1120000.0], N[(2.0 * N[Sqrt[N[(N[(y * x), $MachinePrecision] + N[(z * N[(y + x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], N[(2.0 * N[(y / N[Sqrt[N[(N[(y - x), $MachinePrecision] / z), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
[x, y, z] = \mathsf{sort}([x, y, z])\\
\\
\begin{array}{l}
\mathbf{if}\;y \leq 1120000:\\
\;\;\;\;2 \cdot \sqrt{y \cdot x + z \cdot \left(y + x\right)}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < 1.12e6

    1. Initial program 79.4%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. associate-+l+79.4%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y + \left(x \cdot z + y \cdot z\right)}} \]
      2. distribute-rgt-out79.4%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(x + y\right)}} \]
      3. +-commutative79.4%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + z \cdot \color{blue}{\left(y + x\right)}} \]
    3. Simplified79.4%

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

    if 1.12e6 < y

    1. Initial program 59.3%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. associate-+l+59.3%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y + \left(x \cdot z + y \cdot z\right)}} \]
      2. distribute-rgt-out59.4%

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

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

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Taylor expanded in z around inf 30.2%

      \[\leadsto 2 \cdot \sqrt{\color{blue}{z \cdot \left(x + y\right)}} \]
    5. Step-by-step derivation
      1. +-commutative30.2%

        \[\leadsto 2 \cdot \sqrt{z \cdot \color{blue}{\left(y + x\right)}} \]
    6. Simplified30.2%

      \[\leadsto 2 \cdot \sqrt{\color{blue}{z \cdot \left(y + x\right)}} \]
    7. Step-by-step derivation
      1. *-commutative30.2%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\left(y + x\right) \cdot z}} \]
      2. flip-+22.9%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\frac{y \cdot y - x \cdot x}{y - x}} \cdot z} \]
      3. unpow222.9%

        \[\leadsto 2 \cdot \sqrt{\frac{\color{blue}{{y}^{2}} - x \cdot x}{y - x} \cdot z} \]
      4. unpow222.9%

        \[\leadsto 2 \cdot \sqrt{\frac{{y}^{2} - \color{blue}{{x}^{2}}}{y - x} \cdot z} \]
      5. associate-/r/22.5%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{\frac{{y}^{2} - {x}^{2}}{\frac{y - x}{z}}}} \]
      6. sqrt-div23.6%

        \[\leadsto 2 \cdot \color{blue}{\frac{\sqrt{{y}^{2} - {x}^{2}}}{\sqrt{\frac{y - x}{z}}}} \]
    8. Applied egg-rr23.6%

      \[\leadsto 2 \cdot \color{blue}{\frac{\sqrt{{y}^{2} - {x}^{2}}}{\sqrt{\frac{y - x}{z}}}} \]
    9. Taylor expanded in y around inf 45.4%

      \[\leadsto 2 \cdot \frac{\color{blue}{y}}{\sqrt{\frac{y - x}{z}}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification71.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq 1120000:\\ \;\;\;\;2 \cdot \sqrt{y \cdot x + z \cdot \left(y + x\right)}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \frac{y}{\sqrt{\frac{y - x}{z}}}\\ \end{array} \]

Alternative 9: 69.1% accurate, 1.0× speedup?

\[\begin{array}{l} [x, y, z] = \mathsf{sort}([x, y, z])\\ \\ \begin{array}{l} \mathbf{if}\;y \leq 5 \cdot 10^{-297}:\\ \;\;\;\;2 \cdot \sqrt{x \cdot \left(y + z\right)}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \sqrt{y \cdot z}\\ \end{array} \end{array} \]
NOTE: x, y, and z should be sorted in increasing order before calling this function.
(FPCore (x y z)
 :precision binary64
 (if (<= y 5e-297) (* 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 <= 5e-297) {
		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 <= 5d-297) 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 <= 5e-297) {
		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 <= 5e-297:
		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 <= 5e-297)
		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 <= 5e-297)
		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, 5e-297], 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 5 \cdot 10^{-297}:\\
\;\;\;\;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 < 5e-297

    1. Initial program 79.1%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. associate-+l+79.1%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y + \left(x \cdot z + y \cdot z\right)}} \]
      2. distribute-rgt-out79.1%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(x + y\right)}} \]
      3. +-commutative79.1%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + z \cdot \color{blue}{\left(y + x\right)}} \]
    3. Simplified79.1%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Taylor expanded in x around inf 58.9%

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

    if 5e-297 < y

    1. Initial program 69.6%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. associate-+l+69.6%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y + \left(x \cdot z + y \cdot z\right)}} \]
      2. distribute-rgt-out69.6%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(x + y\right)}} \]
      3. +-commutative69.6%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + z \cdot \color{blue}{\left(y + x\right)}} \]
    3. Simplified69.6%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Taylor expanded in x around 0 26.4%

      \[\leadsto 2 \cdot \color{blue}{\sqrt{y \cdot z}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification43.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq 5 \cdot 10^{-297}:\\ \;\;\;\;2 \cdot \sqrt{x \cdot \left(y + z\right)}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \sqrt{y \cdot z}\\ \end{array} \]

Alternative 10: 70.4% accurate, 1.0× speedup?

\[\begin{array}{l} [x, y, z] = \mathsf{sort}([x, y, z])\\ \\ \begin{array}{l} \mathbf{if}\;y \leq -1 \cdot 10^{-299}:\\ \;\;\;\;2 \cdot \sqrt{x \cdot \left(y + z\right)}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \sqrt{z \cdot \left(y + x\right)}\\ \end{array} \end{array} \]
NOTE: x, y, and z should be sorted in increasing order before calling this function.
(FPCore (x y z)
 :precision binary64
 (if (<= y -1e-299) (* 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 <= -1e-299) {
		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 <= (-1d-299)) 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 <= -1e-299) {
		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 <= -1e-299:
		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 <= -1e-299)
		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 <= -1e-299)
		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, -1e-299], 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 -1 \cdot 10^{-299}:\\
\;\;\;\;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 < -9.99999999999999992e-300

    1. Initial program 79.3%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. associate-+l+79.3%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y + \left(x \cdot z + y \cdot z\right)}} \]
      2. distribute-rgt-out79.3%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(x + y\right)}} \]
      3. +-commutative79.3%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + z \cdot \color{blue}{\left(y + x\right)}} \]
    3. Simplified79.3%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Taylor expanded in x around inf 58.7%

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

    if -9.99999999999999992e-300 < y

    1. Initial program 69.6%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. associate-+l+69.6%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y + \left(x \cdot z + y \cdot z\right)}} \]
      2. distribute-rgt-out69.6%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(x + y\right)}} \]
      3. +-commutative69.6%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + z \cdot \color{blue}{\left(y + x\right)}} \]
    3. Simplified69.6%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Taylor expanded in z around inf 48.1%

      \[\leadsto 2 \cdot \sqrt{\color{blue}{z \cdot \left(x + y\right)}} \]
    5. Step-by-step derivation
      1. +-commutative48.1%

        \[\leadsto 2 \cdot \sqrt{z \cdot \color{blue}{\left(y + x\right)}} \]
    6. Simplified48.1%

      \[\leadsto 2 \cdot \sqrt{\color{blue}{z \cdot \left(y + x\right)}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification53.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1 \cdot 10^{-299}:\\ \;\;\;\;2 \cdot \sqrt{x \cdot \left(y + z\right)}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \sqrt{z \cdot \left(y + x\right)}\\ \end{array} \]

Alternative 11: 68.1% accurate, 1.1× speedup?

\[\begin{array}{l} [x, y, z] = \mathsf{sort}([x, y, z])\\ \\ \begin{array}{l} \mathbf{if}\;y \leq -2 \cdot 10^{-310}:\\ \;\;\;\;2 \cdot \sqrt{y \cdot x}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \sqrt{y \cdot z}\\ \end{array} \end{array} \]
NOTE: x, y, and z should be sorted in increasing order before calling this function.
(FPCore (x y z)
 :precision binary64
 (if (<= y -2e-310) (* 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 <= -2e-310) {
		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 <= (-2d-310)) 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 <= -2e-310) {
		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 <= -2e-310:
		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 <= -2e-310)
		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 <= -2e-310)
		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, -2e-310], 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 \cdot 10^{-310}:\\
\;\;\;\;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 < -1.999999999999994e-310

    1. Initial program 79.7%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. associate-+l+79.7%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y + \left(x \cdot z + y \cdot z\right)}} \]
      2. distribute-rgt-out79.6%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(x + y\right)}} \]
      3. +-commutative79.6%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + z \cdot \color{blue}{\left(y + x\right)}} \]
    3. Simplified79.6%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Taylor expanded in z around 0 29.3%

      \[\leadsto 2 \cdot \color{blue}{\sqrt{x \cdot y}} \]
    5. Step-by-step derivation
      1. *-commutative29.3%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot x}} \]
    6. Simplified29.3%

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

    if -1.999999999999994e-310 < y

    1. Initial program 69.1%

      \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
    2. Step-by-step derivation
      1. associate-+l+69.1%

        \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y + \left(x \cdot z + y \cdot z\right)}} \]
      2. distribute-rgt-out69.1%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(x + y\right)}} \]
      3. +-commutative69.1%

        \[\leadsto 2 \cdot \sqrt{x \cdot y + z \cdot \color{blue}{\left(y + x\right)}} \]
    3. Simplified69.1%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
    4. Taylor expanded in x around 0 26.2%

      \[\leadsto 2 \cdot \color{blue}{\sqrt{y \cdot z}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification27.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -2 \cdot 10^{-310}:\\ \;\;\;\;2 \cdot \sqrt{y \cdot x}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \sqrt{y \cdot z}\\ \end{array} \]

Alternative 12: 36.0% 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 74.4%

    \[2 \cdot \sqrt{\left(x \cdot y + x \cdot z\right) + y \cdot z} \]
  2. Step-by-step derivation
    1. associate-+l+74.4%

      \[\leadsto 2 \cdot \sqrt{\color{blue}{x \cdot y + \left(x \cdot z + y \cdot z\right)}} \]
    2. distribute-rgt-out74.5%

      \[\leadsto 2 \cdot \sqrt{x \cdot y + \color{blue}{z \cdot \left(x + y\right)}} \]
    3. +-commutative74.5%

      \[\leadsto 2 \cdot \sqrt{x \cdot y + z \cdot \color{blue}{\left(y + x\right)}} \]
  3. Simplified74.5%

    \[\leadsto \color{blue}{2 \cdot \sqrt{x \cdot y + z \cdot \left(y + x\right)}} \]
  4. Taylor expanded in z around 0 27.2%

    \[\leadsto 2 \cdot \color{blue}{\sqrt{x \cdot y}} \]
  5. Step-by-step derivation
    1. *-commutative27.2%

      \[\leadsto 2 \cdot \sqrt{\color{blue}{y \cdot x}} \]
  6. Simplified27.2%

    \[\leadsto 2 \cdot \color{blue}{\sqrt{y \cdot x}} \]
  7. Final simplification27.2%

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

Developer target: 82.4% 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 2023332 
(FPCore (x y z)
  :name "Diagrams.TwoD.Apollonian:descartes from diagrams-contrib-1.3.0.5"
  :precision binary64

  :herbie-target
  (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)))))