Graphics.Rendering.Plot.Render.Plot.Legend:renderLegendInside from plot-0.2.3.4

Percentage Accurate: 99.9% → 100.0%
Time: 6.7s
Alternatives: 9
Speedup: 1.2×

Specification

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

\\
\left(\left(\left(\left(x + y\right) + y\right) + x\right) + z\right) + x
\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 9 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: 99.9% accurate, 1.0× speedup?

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

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

Alternative 1: 100.0% accurate, 0.1× speedup?

\[\begin{array}{l} \\ z - \mathsf{fma}\left(x, -3, y \cdot -2\right) \end{array} \]
(FPCore (x y z) :precision binary64 (- z (fma x -3.0 (* y -2.0))))
double code(double x, double y, double z) {
	return z - fma(x, -3.0, (y * -2.0));
}
function code(x, y, z)
	return Float64(z - fma(x, -3.0, Float64(y * -2.0)))
end
code[x_, y_, z_] := N[(z - N[(x * -3.0 + N[(y * -2.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
z - \mathsf{fma}\left(x, -3, y \cdot -2\right)
\end{array}
Derivation
  1. Initial program 99.9%

    \[\left(\left(\left(\left(x + y\right) + y\right) + x\right) + z\right) + x \]
  2. Step-by-step derivation
    1. +-commutative99.9%

      \[\leadsto \color{blue}{\left(z + \left(\left(\left(x + y\right) + y\right) + x\right)\right)} + x \]
    2. associate-+l+99.9%

      \[\leadsto \color{blue}{z + \left(\left(\left(\left(x + y\right) + y\right) + x\right) + x\right)} \]
    3. remove-double-neg99.9%

      \[\leadsto z + \color{blue}{\left(-\left(-\left(\left(\left(\left(x + y\right) + y\right) + x\right) + x\right)\right)\right)} \]
    4. unsub-neg99.9%

      \[\leadsto \color{blue}{z - \left(-\left(\left(\left(\left(x + y\right) + y\right) + x\right) + x\right)\right)} \]
    5. +-commutative99.9%

      \[\leadsto z - \left(-\color{blue}{\left(x + \left(\left(\left(x + y\right) + y\right) + x\right)\right)}\right) \]
    6. +-commutative99.9%

      \[\leadsto z - \left(-\left(x + \color{blue}{\left(x + \left(\left(x + y\right) + y\right)\right)}\right)\right) \]
    7. associate-+l+99.9%

      \[\leadsto z - \left(-\left(x + \left(x + \color{blue}{\left(x + \left(y + y\right)\right)}\right)\right)\right) \]
    8. associate-+r+99.9%

      \[\leadsto z - \left(-\left(x + \color{blue}{\left(\left(x + x\right) + \left(y + y\right)\right)}\right)\right) \]
    9. associate-+r+99.9%

      \[\leadsto z - \left(-\color{blue}{\left(\left(x + \left(x + x\right)\right) + \left(y + y\right)\right)}\right) \]
    10. distribute-neg-in99.9%

      \[\leadsto z - \color{blue}{\left(\left(-\left(x + \left(x + x\right)\right)\right) + \left(-\left(y + y\right)\right)\right)} \]
    11. distribute-neg-out99.9%

      \[\leadsto z - \left(\color{blue}{\left(\left(-x\right) + \left(-\left(x + x\right)\right)\right)} + \left(-\left(y + y\right)\right)\right) \]
    12. distribute-neg-out99.9%

      \[\leadsto z - \left(\left(\left(-x\right) + \left(-\left(x + x\right)\right)\right) + \color{blue}{\left(\left(-y\right) + \left(-y\right)\right)}\right) \]
    13. neg-mul-199.9%

      \[\leadsto z - \left(\left(\color{blue}{-1 \cdot x} + \left(-\left(x + x\right)\right)\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
    14. count-299.9%

      \[\leadsto z - \left(\left(-1 \cdot x + \left(-\color{blue}{2 \cdot x}\right)\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
    15. distribute-lft-neg-in99.9%

      \[\leadsto z - \left(\left(-1 \cdot x + \color{blue}{\left(-2\right) \cdot x}\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
    16. metadata-eval99.9%

      \[\leadsto z - \left(\left(-1 \cdot x + \color{blue}{-2} \cdot x\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
    17. metadata-eval99.9%

      \[\leadsto z - \left(\left(-1 \cdot x + \color{blue}{\left(-1 + -1\right)} \cdot x\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
    18. distribute-rgt-out99.9%

      \[\leadsto z - \left(\color{blue}{x \cdot \left(-1 + \left(-1 + -1\right)\right)} + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
    19. fma-def99.9%

      \[\leadsto z - \color{blue}{\mathsf{fma}\left(x, -1 + \left(-1 + -1\right), \left(-y\right) + \left(-y\right)\right)} \]
  3. Simplified99.9%

    \[\leadsto \color{blue}{z - \mathsf{fma}\left(x, -3, y \cdot -2\right)} \]
  4. Add Preprocessing
  5. Final simplification99.9%

    \[\leadsto z - \mathsf{fma}\left(x, -3, y \cdot -2\right) \]
  6. Add Preprocessing

Alternative 2: 52.1% accurate, 0.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -1.35 \cdot 10^{+96}:\\ \;\;\;\;z\\ \mathbf{elif}\;z \leq -6 \cdot 10^{-91}:\\ \;\;\;\;y \cdot 2\\ \mathbf{elif}\;z \leq 9.5 \cdot 10^{-257}:\\ \;\;\;\;x \cdot 3\\ \mathbf{elif}\;z \leq 2.15 \cdot 10^{-127}:\\ \;\;\;\;y \cdot 2\\ \mathbf{elif}\;z \leq 1.15 \cdot 10^{+44}:\\ \;\;\;\;x \cdot 3\\ \mathbf{else}:\\ \;\;\;\;z\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (if (<= z -1.35e+96)
   z
   (if (<= z -6e-91)
     (* y 2.0)
     (if (<= z 9.5e-257)
       (* x 3.0)
       (if (<= z 2.15e-127) (* y 2.0) (if (<= z 1.15e+44) (* x 3.0) z))))))
double code(double x, double y, double z) {
	double tmp;
	if (z <= -1.35e+96) {
		tmp = z;
	} else if (z <= -6e-91) {
		tmp = y * 2.0;
	} else if (z <= 9.5e-257) {
		tmp = x * 3.0;
	} else if (z <= 2.15e-127) {
		tmp = y * 2.0;
	} else if (z <= 1.15e+44) {
		tmp = x * 3.0;
	} else {
		tmp = z;
	}
	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) :: tmp
    if (z <= (-1.35d+96)) then
        tmp = z
    else if (z <= (-6d-91)) then
        tmp = y * 2.0d0
    else if (z <= 9.5d-257) then
        tmp = x * 3.0d0
    else if (z <= 2.15d-127) then
        tmp = y * 2.0d0
    else if (z <= 1.15d+44) then
        tmp = x * 3.0d0
    else
        tmp = z
    end if
    code = tmp
end function
public static double code(double x, double y, double z) {
	double tmp;
	if (z <= -1.35e+96) {
		tmp = z;
	} else if (z <= -6e-91) {
		tmp = y * 2.0;
	} else if (z <= 9.5e-257) {
		tmp = x * 3.0;
	} else if (z <= 2.15e-127) {
		tmp = y * 2.0;
	} else if (z <= 1.15e+44) {
		tmp = x * 3.0;
	} else {
		tmp = z;
	}
	return tmp;
}
def code(x, y, z):
	tmp = 0
	if z <= -1.35e+96:
		tmp = z
	elif z <= -6e-91:
		tmp = y * 2.0
	elif z <= 9.5e-257:
		tmp = x * 3.0
	elif z <= 2.15e-127:
		tmp = y * 2.0
	elif z <= 1.15e+44:
		tmp = x * 3.0
	else:
		tmp = z
	return tmp
function code(x, y, z)
	tmp = 0.0
	if (z <= -1.35e+96)
		tmp = z;
	elseif (z <= -6e-91)
		tmp = Float64(y * 2.0);
	elseif (z <= 9.5e-257)
		tmp = Float64(x * 3.0);
	elseif (z <= 2.15e-127)
		tmp = Float64(y * 2.0);
	elseif (z <= 1.15e+44)
		tmp = Float64(x * 3.0);
	else
		tmp = z;
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	tmp = 0.0;
	if (z <= -1.35e+96)
		tmp = z;
	elseif (z <= -6e-91)
		tmp = y * 2.0;
	elseif (z <= 9.5e-257)
		tmp = x * 3.0;
	elseif (z <= 2.15e-127)
		tmp = y * 2.0;
	elseif (z <= 1.15e+44)
		tmp = x * 3.0;
	else
		tmp = z;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := If[LessEqual[z, -1.35e+96], z, If[LessEqual[z, -6e-91], N[(y * 2.0), $MachinePrecision], If[LessEqual[z, 9.5e-257], N[(x * 3.0), $MachinePrecision], If[LessEqual[z, 2.15e-127], N[(y * 2.0), $MachinePrecision], If[LessEqual[z, 1.15e+44], N[(x * 3.0), $MachinePrecision], z]]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -1.35 \cdot 10^{+96}:\\
\;\;\;\;z\\

\mathbf{elif}\;z \leq -6 \cdot 10^{-91}:\\
\;\;\;\;y \cdot 2\\

\mathbf{elif}\;z \leq 9.5 \cdot 10^{-257}:\\
\;\;\;\;x \cdot 3\\

\mathbf{elif}\;z \leq 2.15 \cdot 10^{-127}:\\
\;\;\;\;y \cdot 2\\

\mathbf{elif}\;z \leq 1.15 \cdot 10^{+44}:\\
\;\;\;\;x \cdot 3\\

\mathbf{else}:\\
\;\;\;\;z\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if z < -1.35000000000000011e96 or 1.15000000000000002e44 < z

    1. Initial program 99.9%

      \[\left(\left(\left(\left(x + y\right) + y\right) + x\right) + z\right) + x \]
    2. Step-by-step derivation
      1. associate-+l+99.9%

        \[\leadsto \color{blue}{\left(\left(\left(x + y\right) + y\right) + x\right) + \left(z + x\right)} \]
      2. associate-+l+99.9%

        \[\leadsto \color{blue}{\left(\left(x + y\right) + \left(y + x\right)\right)} + \left(z + x\right) \]
      3. +-commutative99.9%

        \[\leadsto \left(\color{blue}{\left(y + x\right)} + \left(y + x\right)\right) + \left(z + x\right) \]
      4. count-299.9%

        \[\leadsto \color{blue}{2 \cdot \left(y + x\right)} + \left(z + x\right) \]
      5. +-commutative99.9%

        \[\leadsto 2 \cdot \color{blue}{\left(x + y\right)} + \left(z + x\right) \]
      6. +-commutative99.9%

        \[\leadsto 2 \cdot \left(x + y\right) + \color{blue}{\left(x + z\right)} \]
    3. Simplified99.9%

      \[\leadsto \color{blue}{2 \cdot \left(x + y\right) + \left(x + z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in z around inf 74.5%

      \[\leadsto \color{blue}{z} \]

    if -1.35000000000000011e96 < z < -6.0000000000000004e-91 or 9.49999999999999941e-257 < z < 2.14999999999999992e-127

    1. Initial program 99.9%

      \[\left(\left(\left(\left(x + y\right) + y\right) + x\right) + z\right) + x \]
    2. Step-by-step derivation
      1. associate-+l+99.9%

        \[\leadsto \color{blue}{\left(\left(\left(x + y\right) + y\right) + x\right) + \left(z + x\right)} \]
      2. associate-+l+99.9%

        \[\leadsto \color{blue}{\left(\left(x + y\right) + \left(y + x\right)\right)} + \left(z + x\right) \]
      3. +-commutative99.9%

        \[\leadsto \left(\color{blue}{\left(y + x\right)} + \left(y + x\right)\right) + \left(z + x\right) \]
      4. count-299.9%

        \[\leadsto \color{blue}{2 \cdot \left(y + x\right)} + \left(z + x\right) \]
      5. +-commutative99.9%

        \[\leadsto 2 \cdot \color{blue}{\left(x + y\right)} + \left(z + x\right) \]
      6. +-commutative99.9%

        \[\leadsto 2 \cdot \left(x + y\right) + \color{blue}{\left(x + z\right)} \]
    3. Simplified99.9%

      \[\leadsto \color{blue}{2 \cdot \left(x + y\right) + \left(x + z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 56.5%

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

    if -6.0000000000000004e-91 < z < 9.49999999999999941e-257 or 2.14999999999999992e-127 < z < 1.15000000000000002e44

    1. Initial program 99.9%

      \[\left(\left(\left(\left(x + y\right) + y\right) + x\right) + z\right) + x \]
    2. Step-by-step derivation
      1. associate-+l+99.9%

        \[\leadsto \color{blue}{\left(\left(\left(x + y\right) + y\right) + x\right) + \left(z + x\right)} \]
      2. associate-+l+99.9%

        \[\leadsto \color{blue}{\left(\left(x + y\right) + \left(y + x\right)\right)} + \left(z + x\right) \]
      3. +-commutative99.9%

        \[\leadsto \left(\color{blue}{\left(y + x\right)} + \left(y + x\right)\right) + \left(z + x\right) \]
      4. count-299.9%

        \[\leadsto \color{blue}{2 \cdot \left(y + x\right)} + \left(z + x\right) \]
      5. +-commutative99.9%

        \[\leadsto 2 \cdot \color{blue}{\left(x + y\right)} + \left(z + x\right) \]
      6. +-commutative99.9%

        \[\leadsto 2 \cdot \left(x + y\right) + \color{blue}{\left(x + z\right)} \]
    3. Simplified99.9%

      \[\leadsto \color{blue}{2 \cdot \left(x + y\right) + \left(x + z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 59.0%

      \[\leadsto \color{blue}{3 \cdot x} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification64.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -1.35 \cdot 10^{+96}:\\ \;\;\;\;z\\ \mathbf{elif}\;z \leq -6 \cdot 10^{-91}:\\ \;\;\;\;y \cdot 2\\ \mathbf{elif}\;z \leq 9.5 \cdot 10^{-257}:\\ \;\;\;\;x \cdot 3\\ \mathbf{elif}\;z \leq 2.15 \cdot 10^{-127}:\\ \;\;\;\;y \cdot 2\\ \mathbf{elif}\;z \leq 1.15 \cdot 10^{+44}:\\ \;\;\;\;x \cdot 3\\ \mathbf{else}:\\ \;\;\;\;z\\ \end{array} \]
  5. Add Preprocessing

Alternative 3: 79.0% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -2.5 \cdot 10^{+94} \lor \neg \left(y \leq 9 \cdot 10^{+203}\right):\\ \;\;\;\;y \cdot 2\\ \mathbf{else}:\\ \;\;\;\;z - x \cdot -3\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (if (or (<= y -2.5e+94) (not (<= y 9e+203))) (* y 2.0) (- z (* x -3.0))))
double code(double x, double y, double z) {
	double tmp;
	if ((y <= -2.5e+94) || !(y <= 9e+203)) {
		tmp = y * 2.0;
	} else {
		tmp = z - (x * -3.0);
	}
	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) :: tmp
    if ((y <= (-2.5d+94)) .or. (.not. (y <= 9d+203))) then
        tmp = y * 2.0d0
    else
        tmp = z - (x * (-3.0d0))
    end if
    code = tmp
end function
public static double code(double x, double y, double z) {
	double tmp;
	if ((y <= -2.5e+94) || !(y <= 9e+203)) {
		tmp = y * 2.0;
	} else {
		tmp = z - (x * -3.0);
	}
	return tmp;
}
def code(x, y, z):
	tmp = 0
	if (y <= -2.5e+94) or not (y <= 9e+203):
		tmp = y * 2.0
	else:
		tmp = z - (x * -3.0)
	return tmp
function code(x, y, z)
	tmp = 0.0
	if ((y <= -2.5e+94) || !(y <= 9e+203))
		tmp = Float64(y * 2.0);
	else
		tmp = Float64(z - Float64(x * -3.0));
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	tmp = 0.0;
	if ((y <= -2.5e+94) || ~((y <= 9e+203)))
		tmp = y * 2.0;
	else
		tmp = z - (x * -3.0);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := If[Or[LessEqual[y, -2.5e+94], N[Not[LessEqual[y, 9e+203]], $MachinePrecision]], N[(y * 2.0), $MachinePrecision], N[(z - N[(x * -3.0), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -2.5 \cdot 10^{+94} \lor \neg \left(y \leq 9 \cdot 10^{+203}\right):\\
\;\;\;\;y \cdot 2\\

\mathbf{else}:\\
\;\;\;\;z - x \cdot -3\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -2.50000000000000005e94 or 9.0000000000000006e203 < y

    1. Initial program 99.9%

      \[\left(\left(\left(\left(x + y\right) + y\right) + x\right) + z\right) + x \]
    2. Step-by-step derivation
      1. associate-+l+99.9%

        \[\leadsto \color{blue}{\left(\left(\left(x + y\right) + y\right) + x\right) + \left(z + x\right)} \]
      2. associate-+l+99.9%

        \[\leadsto \color{blue}{\left(\left(x + y\right) + \left(y + x\right)\right)} + \left(z + x\right) \]
      3. +-commutative99.9%

        \[\leadsto \left(\color{blue}{\left(y + x\right)} + \left(y + x\right)\right) + \left(z + x\right) \]
      4. count-299.9%

        \[\leadsto \color{blue}{2 \cdot \left(y + x\right)} + \left(z + x\right) \]
      5. +-commutative99.9%

        \[\leadsto 2 \cdot \color{blue}{\left(x + y\right)} + \left(z + x\right) \]
      6. +-commutative99.9%

        \[\leadsto 2 \cdot \left(x + y\right) + \color{blue}{\left(x + z\right)} \]
    3. Simplified99.9%

      \[\leadsto \color{blue}{2 \cdot \left(x + y\right) + \left(x + z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 84.5%

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

    if -2.50000000000000005e94 < y < 9.0000000000000006e203

    1. Initial program 99.9%

      \[\left(\left(\left(\left(x + y\right) + y\right) + x\right) + z\right) + x \]
    2. Step-by-step derivation
      1. +-commutative99.9%

        \[\leadsto \color{blue}{\left(z + \left(\left(\left(x + y\right) + y\right) + x\right)\right)} + x \]
      2. associate-+l+99.9%

        \[\leadsto \color{blue}{z + \left(\left(\left(\left(x + y\right) + y\right) + x\right) + x\right)} \]
      3. remove-double-neg99.9%

        \[\leadsto z + \color{blue}{\left(-\left(-\left(\left(\left(\left(x + y\right) + y\right) + x\right) + x\right)\right)\right)} \]
      4. unsub-neg99.9%

        \[\leadsto \color{blue}{z - \left(-\left(\left(\left(\left(x + y\right) + y\right) + x\right) + x\right)\right)} \]
      5. +-commutative99.9%

        \[\leadsto z - \left(-\color{blue}{\left(x + \left(\left(\left(x + y\right) + y\right) + x\right)\right)}\right) \]
      6. +-commutative99.9%

        \[\leadsto z - \left(-\left(x + \color{blue}{\left(x + \left(\left(x + y\right) + y\right)\right)}\right)\right) \]
      7. associate-+l+99.9%

        \[\leadsto z - \left(-\left(x + \left(x + \color{blue}{\left(x + \left(y + y\right)\right)}\right)\right)\right) \]
      8. associate-+r+99.9%

        \[\leadsto z - \left(-\left(x + \color{blue}{\left(\left(x + x\right) + \left(y + y\right)\right)}\right)\right) \]
      9. associate-+r+99.9%

        \[\leadsto z - \left(-\color{blue}{\left(\left(x + \left(x + x\right)\right) + \left(y + y\right)\right)}\right) \]
      10. distribute-neg-in99.9%

        \[\leadsto z - \color{blue}{\left(\left(-\left(x + \left(x + x\right)\right)\right) + \left(-\left(y + y\right)\right)\right)} \]
      11. distribute-neg-out99.9%

        \[\leadsto z - \left(\color{blue}{\left(\left(-x\right) + \left(-\left(x + x\right)\right)\right)} + \left(-\left(y + y\right)\right)\right) \]
      12. distribute-neg-out99.9%

        \[\leadsto z - \left(\left(\left(-x\right) + \left(-\left(x + x\right)\right)\right) + \color{blue}{\left(\left(-y\right) + \left(-y\right)\right)}\right) \]
      13. neg-mul-199.9%

        \[\leadsto z - \left(\left(\color{blue}{-1 \cdot x} + \left(-\left(x + x\right)\right)\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      14. count-299.9%

        \[\leadsto z - \left(\left(-1 \cdot x + \left(-\color{blue}{2 \cdot x}\right)\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      15. distribute-lft-neg-in99.9%

        \[\leadsto z - \left(\left(-1 \cdot x + \color{blue}{\left(-2\right) \cdot x}\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      16. metadata-eval99.9%

        \[\leadsto z - \left(\left(-1 \cdot x + \color{blue}{-2} \cdot x\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      17. metadata-eval99.9%

        \[\leadsto z - \left(\left(-1 \cdot x + \color{blue}{\left(-1 + -1\right)} \cdot x\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      18. distribute-rgt-out99.9%

        \[\leadsto z - \left(\color{blue}{x \cdot \left(-1 + \left(-1 + -1\right)\right)} + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      19. fma-def99.9%

        \[\leadsto z - \color{blue}{\mathsf{fma}\left(x, -1 + \left(-1 + -1\right), \left(-y\right) + \left(-y\right)\right)} \]
    3. Simplified99.9%

      \[\leadsto \color{blue}{z - \mathsf{fma}\left(x, -3, y \cdot -2\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around 0 83.2%

      \[\leadsto \color{blue}{z - -3 \cdot x} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification83.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -2.5 \cdot 10^{+94} \lor \neg \left(y \leq 9 \cdot 10^{+203}\right):\\ \;\;\;\;y \cdot 2\\ \mathbf{else}:\\ \;\;\;\;z - x \cdot -3\\ \end{array} \]
  5. Add Preprocessing

Alternative 4: 85.0% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -760000 \lor \neg \left(y \leq 0.0066\right):\\ \;\;\;\;z - y \cdot -2\\ \mathbf{else}:\\ \;\;\;\;z - x \cdot -3\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (if (or (<= y -760000.0) (not (<= y 0.0066)))
   (- z (* y -2.0))
   (- z (* x -3.0))))
double code(double x, double y, double z) {
	double tmp;
	if ((y <= -760000.0) || !(y <= 0.0066)) {
		tmp = z - (y * -2.0);
	} else {
		tmp = z - (x * -3.0);
	}
	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) :: tmp
    if ((y <= (-760000.0d0)) .or. (.not. (y <= 0.0066d0))) then
        tmp = z - (y * (-2.0d0))
    else
        tmp = z - (x * (-3.0d0))
    end if
    code = tmp
end function
public static double code(double x, double y, double z) {
	double tmp;
	if ((y <= -760000.0) || !(y <= 0.0066)) {
		tmp = z - (y * -2.0);
	} else {
		tmp = z - (x * -3.0);
	}
	return tmp;
}
def code(x, y, z):
	tmp = 0
	if (y <= -760000.0) or not (y <= 0.0066):
		tmp = z - (y * -2.0)
	else:
		tmp = z - (x * -3.0)
	return tmp
function code(x, y, z)
	tmp = 0.0
	if ((y <= -760000.0) || !(y <= 0.0066))
		tmp = Float64(z - Float64(y * -2.0));
	else
		tmp = Float64(z - Float64(x * -3.0));
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	tmp = 0.0;
	if ((y <= -760000.0) || ~((y <= 0.0066)))
		tmp = z - (y * -2.0);
	else
		tmp = z - (x * -3.0);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := If[Or[LessEqual[y, -760000.0], N[Not[LessEqual[y, 0.0066]], $MachinePrecision]], N[(z - N[(y * -2.0), $MachinePrecision]), $MachinePrecision], N[(z - N[(x * -3.0), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -760000 \lor \neg \left(y \leq 0.0066\right):\\
\;\;\;\;z - y \cdot -2\\

\mathbf{else}:\\
\;\;\;\;z - x \cdot -3\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -7.6e5 or 0.0066 < y

    1. Initial program 99.9%

      \[\left(\left(\left(\left(x + y\right) + y\right) + x\right) + z\right) + x \]
    2. Step-by-step derivation
      1. +-commutative99.9%

        \[\leadsto \color{blue}{\left(z + \left(\left(\left(x + y\right) + y\right) + x\right)\right)} + x \]
      2. associate-+l+99.9%

        \[\leadsto \color{blue}{z + \left(\left(\left(\left(x + y\right) + y\right) + x\right) + x\right)} \]
      3. remove-double-neg99.9%

        \[\leadsto z + \color{blue}{\left(-\left(-\left(\left(\left(\left(x + y\right) + y\right) + x\right) + x\right)\right)\right)} \]
      4. unsub-neg99.9%

        \[\leadsto \color{blue}{z - \left(-\left(\left(\left(\left(x + y\right) + y\right) + x\right) + x\right)\right)} \]
      5. +-commutative99.9%

        \[\leadsto z - \left(-\color{blue}{\left(x + \left(\left(\left(x + y\right) + y\right) + x\right)\right)}\right) \]
      6. +-commutative99.9%

        \[\leadsto z - \left(-\left(x + \color{blue}{\left(x + \left(\left(x + y\right) + y\right)\right)}\right)\right) \]
      7. associate-+l+99.9%

        \[\leadsto z - \left(-\left(x + \left(x + \color{blue}{\left(x + \left(y + y\right)\right)}\right)\right)\right) \]
      8. associate-+r+99.9%

        \[\leadsto z - \left(-\left(x + \color{blue}{\left(\left(x + x\right) + \left(y + y\right)\right)}\right)\right) \]
      9. associate-+r+100.0%

        \[\leadsto z - \left(-\color{blue}{\left(\left(x + \left(x + x\right)\right) + \left(y + y\right)\right)}\right) \]
      10. distribute-neg-in100.0%

        \[\leadsto z - \color{blue}{\left(\left(-\left(x + \left(x + x\right)\right)\right) + \left(-\left(y + y\right)\right)\right)} \]
      11. distribute-neg-out100.0%

        \[\leadsto z - \left(\color{blue}{\left(\left(-x\right) + \left(-\left(x + x\right)\right)\right)} + \left(-\left(y + y\right)\right)\right) \]
      12. distribute-neg-out100.0%

        \[\leadsto z - \left(\left(\left(-x\right) + \left(-\left(x + x\right)\right)\right) + \color{blue}{\left(\left(-y\right) + \left(-y\right)\right)}\right) \]
      13. neg-mul-1100.0%

        \[\leadsto z - \left(\left(\color{blue}{-1 \cdot x} + \left(-\left(x + x\right)\right)\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      14. count-2100.0%

        \[\leadsto z - \left(\left(-1 \cdot x + \left(-\color{blue}{2 \cdot x}\right)\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      15. distribute-lft-neg-in100.0%

        \[\leadsto z - \left(\left(-1 \cdot x + \color{blue}{\left(-2\right) \cdot x}\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      16. metadata-eval100.0%

        \[\leadsto z - \left(\left(-1 \cdot x + \color{blue}{-2} \cdot x\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      17. metadata-eval100.0%

        \[\leadsto z - \left(\left(-1 \cdot x + \color{blue}{\left(-1 + -1\right)} \cdot x\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      18. distribute-rgt-out100.0%

        \[\leadsto z - \left(\color{blue}{x \cdot \left(-1 + \left(-1 + -1\right)\right)} + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      19. fma-def100.0%

        \[\leadsto z - \color{blue}{\mathsf{fma}\left(x, -1 + \left(-1 + -1\right), \left(-y\right) + \left(-y\right)\right)} \]
    3. Simplified100.0%

      \[\leadsto \color{blue}{z - \mathsf{fma}\left(x, -3, y \cdot -2\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in x around 0 80.4%

      \[\leadsto \color{blue}{z - -2 \cdot y} \]

    if -7.6e5 < y < 0.0066

    1. Initial program 99.9%

      \[\left(\left(\left(\left(x + y\right) + y\right) + x\right) + z\right) + x \]
    2. Step-by-step derivation
      1. +-commutative99.9%

        \[\leadsto \color{blue}{\left(z + \left(\left(\left(x + y\right) + y\right) + x\right)\right)} + x \]
      2. associate-+l+99.9%

        \[\leadsto \color{blue}{z + \left(\left(\left(\left(x + y\right) + y\right) + x\right) + x\right)} \]
      3. remove-double-neg99.9%

        \[\leadsto z + \color{blue}{\left(-\left(-\left(\left(\left(\left(x + y\right) + y\right) + x\right) + x\right)\right)\right)} \]
      4. unsub-neg99.9%

        \[\leadsto \color{blue}{z - \left(-\left(\left(\left(\left(x + y\right) + y\right) + x\right) + x\right)\right)} \]
      5. +-commutative99.9%

        \[\leadsto z - \left(-\color{blue}{\left(x + \left(\left(\left(x + y\right) + y\right) + x\right)\right)}\right) \]
      6. +-commutative99.9%

        \[\leadsto z - \left(-\left(x + \color{blue}{\left(x + \left(\left(x + y\right) + y\right)\right)}\right)\right) \]
      7. associate-+l+99.9%

        \[\leadsto z - \left(-\left(x + \left(x + \color{blue}{\left(x + \left(y + y\right)\right)}\right)\right)\right) \]
      8. associate-+r+99.9%

        \[\leadsto z - \left(-\left(x + \color{blue}{\left(\left(x + x\right) + \left(y + y\right)\right)}\right)\right) \]
      9. associate-+r+99.9%

        \[\leadsto z - \left(-\color{blue}{\left(\left(x + \left(x + x\right)\right) + \left(y + y\right)\right)}\right) \]
      10. distribute-neg-in99.9%

        \[\leadsto z - \color{blue}{\left(\left(-\left(x + \left(x + x\right)\right)\right) + \left(-\left(y + y\right)\right)\right)} \]
      11. distribute-neg-out99.9%

        \[\leadsto z - \left(\color{blue}{\left(\left(-x\right) + \left(-\left(x + x\right)\right)\right)} + \left(-\left(y + y\right)\right)\right) \]
      12. distribute-neg-out99.9%

        \[\leadsto z - \left(\left(\left(-x\right) + \left(-\left(x + x\right)\right)\right) + \color{blue}{\left(\left(-y\right) + \left(-y\right)\right)}\right) \]
      13. neg-mul-199.9%

        \[\leadsto z - \left(\left(\color{blue}{-1 \cdot x} + \left(-\left(x + x\right)\right)\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      14. count-299.9%

        \[\leadsto z - \left(\left(-1 \cdot x + \left(-\color{blue}{2 \cdot x}\right)\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      15. distribute-lft-neg-in99.9%

        \[\leadsto z - \left(\left(-1 \cdot x + \color{blue}{\left(-2\right) \cdot x}\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      16. metadata-eval99.9%

        \[\leadsto z - \left(\left(-1 \cdot x + \color{blue}{-2} \cdot x\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      17. metadata-eval99.9%

        \[\leadsto z - \left(\left(-1 \cdot x + \color{blue}{\left(-1 + -1\right)} \cdot x\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      18. distribute-rgt-out99.9%

        \[\leadsto z - \left(\color{blue}{x \cdot \left(-1 + \left(-1 + -1\right)\right)} + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      19. fma-def99.9%

        \[\leadsto z - \color{blue}{\mathsf{fma}\left(x, -1 + \left(-1 + -1\right), \left(-y\right) + \left(-y\right)\right)} \]
    3. Simplified99.9%

      \[\leadsto \color{blue}{z - \mathsf{fma}\left(x, -3, y \cdot -2\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around 0 93.9%

      \[\leadsto \color{blue}{z - -3 \cdot x} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification88.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -760000 \lor \neg \left(y \leq 0.0066\right):\\ \;\;\;\;z - y \cdot -2\\ \mathbf{else}:\\ \;\;\;\;z - x \cdot -3\\ \end{array} \]
  5. Add Preprocessing

Alternative 5: 84.9% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -1.25 \cdot 10^{-31}:\\ \;\;\;\;x + 2 \cdot \left(x + y\right)\\ \mathbf{elif}\;y \leq 0.0085:\\ \;\;\;\;z - x \cdot -3\\ \mathbf{else}:\\ \;\;\;\;z - y \cdot -2\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (if (<= y -1.25e-31)
   (+ x (* 2.0 (+ x y)))
   (if (<= y 0.0085) (- z (* x -3.0)) (- z (* y -2.0)))))
double code(double x, double y, double z) {
	double tmp;
	if (y <= -1.25e-31) {
		tmp = x + (2.0 * (x + y));
	} else if (y <= 0.0085) {
		tmp = z - (x * -3.0);
	} else {
		tmp = z - (y * -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) :: tmp
    if (y <= (-1.25d-31)) then
        tmp = x + (2.0d0 * (x + y))
    else if (y <= 0.0085d0) then
        tmp = z - (x * (-3.0d0))
    else
        tmp = z - (y * (-2.0d0))
    end if
    code = tmp
end function
public static double code(double x, double y, double z) {
	double tmp;
	if (y <= -1.25e-31) {
		tmp = x + (2.0 * (x + y));
	} else if (y <= 0.0085) {
		tmp = z - (x * -3.0);
	} else {
		tmp = z - (y * -2.0);
	}
	return tmp;
}
def code(x, y, z):
	tmp = 0
	if y <= -1.25e-31:
		tmp = x + (2.0 * (x + y))
	elif y <= 0.0085:
		tmp = z - (x * -3.0)
	else:
		tmp = z - (y * -2.0)
	return tmp
function code(x, y, z)
	tmp = 0.0
	if (y <= -1.25e-31)
		tmp = Float64(x + Float64(2.0 * Float64(x + y)));
	elseif (y <= 0.0085)
		tmp = Float64(z - Float64(x * -3.0));
	else
		tmp = Float64(z - Float64(y * -2.0));
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	tmp = 0.0;
	if (y <= -1.25e-31)
		tmp = x + (2.0 * (x + y));
	elseif (y <= 0.0085)
		tmp = z - (x * -3.0);
	else
		tmp = z - (y * -2.0);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := If[LessEqual[y, -1.25e-31], N[(x + N[(2.0 * N[(x + y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 0.0085], N[(z - N[(x * -3.0), $MachinePrecision]), $MachinePrecision], N[(z - N[(y * -2.0), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -1.25 \cdot 10^{-31}:\\
\;\;\;\;x + 2 \cdot \left(x + y\right)\\

\mathbf{elif}\;y \leq 0.0085:\\
\;\;\;\;z - x \cdot -3\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -1.25e-31

    1. Initial program 99.9%

      \[\left(\left(\left(\left(x + y\right) + y\right) + x\right) + z\right) + x \]
    2. Step-by-step derivation
      1. associate-+l+99.9%

        \[\leadsto \color{blue}{\left(\left(\left(x + y\right) + y\right) + x\right) + \left(z + x\right)} \]
      2. associate-+l+99.9%

        \[\leadsto \color{blue}{\left(\left(x + y\right) + \left(y + x\right)\right)} + \left(z + x\right) \]
      3. +-commutative99.9%

        \[\leadsto \left(\color{blue}{\left(y + x\right)} + \left(y + x\right)\right) + \left(z + x\right) \]
      4. count-299.9%

        \[\leadsto \color{blue}{2 \cdot \left(y + x\right)} + \left(z + x\right) \]
      5. +-commutative99.9%

        \[\leadsto 2 \cdot \color{blue}{\left(x + y\right)} + \left(z + x\right) \]
      6. +-commutative99.9%

        \[\leadsto 2 \cdot \left(x + y\right) + \color{blue}{\left(x + z\right)} \]
    3. Simplified99.9%

      \[\leadsto \color{blue}{2 \cdot \left(x + y\right) + \left(x + z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 90.3%

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

    if -1.25e-31 < y < 0.0085000000000000006

    1. Initial program 99.9%

      \[\left(\left(\left(\left(x + y\right) + y\right) + x\right) + z\right) + x \]
    2. Step-by-step derivation
      1. +-commutative99.9%

        \[\leadsto \color{blue}{\left(z + \left(\left(\left(x + y\right) + y\right) + x\right)\right)} + x \]
      2. associate-+l+99.9%

        \[\leadsto \color{blue}{z + \left(\left(\left(\left(x + y\right) + y\right) + x\right) + x\right)} \]
      3. remove-double-neg99.9%

        \[\leadsto z + \color{blue}{\left(-\left(-\left(\left(\left(\left(x + y\right) + y\right) + x\right) + x\right)\right)\right)} \]
      4. unsub-neg99.9%

        \[\leadsto \color{blue}{z - \left(-\left(\left(\left(\left(x + y\right) + y\right) + x\right) + x\right)\right)} \]
      5. +-commutative99.9%

        \[\leadsto z - \left(-\color{blue}{\left(x + \left(\left(\left(x + y\right) + y\right) + x\right)\right)}\right) \]
      6. +-commutative99.9%

        \[\leadsto z - \left(-\left(x + \color{blue}{\left(x + \left(\left(x + y\right) + y\right)\right)}\right)\right) \]
      7. associate-+l+99.9%

        \[\leadsto z - \left(-\left(x + \left(x + \color{blue}{\left(x + \left(y + y\right)\right)}\right)\right)\right) \]
      8. associate-+r+99.9%

        \[\leadsto z - \left(-\left(x + \color{blue}{\left(\left(x + x\right) + \left(y + y\right)\right)}\right)\right) \]
      9. associate-+r+99.9%

        \[\leadsto z - \left(-\color{blue}{\left(\left(x + \left(x + x\right)\right) + \left(y + y\right)\right)}\right) \]
      10. distribute-neg-in99.9%

        \[\leadsto z - \color{blue}{\left(\left(-\left(x + \left(x + x\right)\right)\right) + \left(-\left(y + y\right)\right)\right)} \]
      11. distribute-neg-out99.9%

        \[\leadsto z - \left(\color{blue}{\left(\left(-x\right) + \left(-\left(x + x\right)\right)\right)} + \left(-\left(y + y\right)\right)\right) \]
      12. distribute-neg-out99.9%

        \[\leadsto z - \left(\left(\left(-x\right) + \left(-\left(x + x\right)\right)\right) + \color{blue}{\left(\left(-y\right) + \left(-y\right)\right)}\right) \]
      13. neg-mul-199.9%

        \[\leadsto z - \left(\left(\color{blue}{-1 \cdot x} + \left(-\left(x + x\right)\right)\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      14. count-299.9%

        \[\leadsto z - \left(\left(-1 \cdot x + \left(-\color{blue}{2 \cdot x}\right)\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      15. distribute-lft-neg-in99.9%

        \[\leadsto z - \left(\left(-1 \cdot x + \color{blue}{\left(-2\right) \cdot x}\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      16. metadata-eval99.9%

        \[\leadsto z - \left(\left(-1 \cdot x + \color{blue}{-2} \cdot x\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      17. metadata-eval99.9%

        \[\leadsto z - \left(\left(-1 \cdot x + \color{blue}{\left(-1 + -1\right)} \cdot x\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      18. distribute-rgt-out99.9%

        \[\leadsto z - \left(\color{blue}{x \cdot \left(-1 + \left(-1 + -1\right)\right)} + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      19. fma-def99.9%

        \[\leadsto z - \color{blue}{\mathsf{fma}\left(x, -1 + \left(-1 + -1\right), \left(-y\right) + \left(-y\right)\right)} \]
    3. Simplified99.9%

      \[\leadsto \color{blue}{z - \mathsf{fma}\left(x, -3, y \cdot -2\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around 0 94.4%

      \[\leadsto \color{blue}{z - -3 \cdot x} \]

    if 0.0085000000000000006 < y

    1. Initial program 100.0%

      \[\left(\left(\left(\left(x + y\right) + y\right) + x\right) + z\right) + x \]
    2. Step-by-step derivation
      1. +-commutative100.0%

        \[\leadsto \color{blue}{\left(z + \left(\left(\left(x + y\right) + y\right) + x\right)\right)} + x \]
      2. associate-+l+100.0%

        \[\leadsto \color{blue}{z + \left(\left(\left(\left(x + y\right) + y\right) + x\right) + x\right)} \]
      3. remove-double-neg100.0%

        \[\leadsto z + \color{blue}{\left(-\left(-\left(\left(\left(\left(x + y\right) + y\right) + x\right) + x\right)\right)\right)} \]
      4. unsub-neg100.0%

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

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

        \[\leadsto z - \left(-\left(x + \color{blue}{\left(x + \left(\left(x + y\right) + y\right)\right)}\right)\right) \]
      7. associate-+l+100.0%

        \[\leadsto z - \left(-\left(x + \left(x + \color{blue}{\left(x + \left(y + y\right)\right)}\right)\right)\right) \]
      8. associate-+r+100.0%

        \[\leadsto z - \left(-\left(x + \color{blue}{\left(\left(x + x\right) + \left(y + y\right)\right)}\right)\right) \]
      9. associate-+r+99.9%

        \[\leadsto z - \left(-\color{blue}{\left(\left(x + \left(x + x\right)\right) + \left(y + y\right)\right)}\right) \]
      10. distribute-neg-in99.9%

        \[\leadsto z - \color{blue}{\left(\left(-\left(x + \left(x + x\right)\right)\right) + \left(-\left(y + y\right)\right)\right)} \]
      11. distribute-neg-out99.9%

        \[\leadsto z - \left(\color{blue}{\left(\left(-x\right) + \left(-\left(x + x\right)\right)\right)} + \left(-\left(y + y\right)\right)\right) \]
      12. distribute-neg-out99.9%

        \[\leadsto z - \left(\left(\left(-x\right) + \left(-\left(x + x\right)\right)\right) + \color{blue}{\left(\left(-y\right) + \left(-y\right)\right)}\right) \]
      13. neg-mul-199.9%

        \[\leadsto z - \left(\left(\color{blue}{-1 \cdot x} + \left(-\left(x + x\right)\right)\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      14. count-299.9%

        \[\leadsto z - \left(\left(-1 \cdot x + \left(-\color{blue}{2 \cdot x}\right)\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      15. distribute-lft-neg-in99.9%

        \[\leadsto z - \left(\left(-1 \cdot x + \color{blue}{\left(-2\right) \cdot x}\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      16. metadata-eval99.9%

        \[\leadsto z - \left(\left(-1 \cdot x + \color{blue}{-2} \cdot x\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      17. metadata-eval99.9%

        \[\leadsto z - \left(\left(-1 \cdot x + \color{blue}{\left(-1 + -1\right)} \cdot x\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      18. distribute-rgt-out99.9%

        \[\leadsto z - \left(\color{blue}{x \cdot \left(-1 + \left(-1 + -1\right)\right)} + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      19. fma-def100.0%

        \[\leadsto z - \color{blue}{\mathsf{fma}\left(x, -1 + \left(-1 + -1\right), \left(-y\right) + \left(-y\right)\right)} \]
    3. Simplified100.0%

      \[\leadsto \color{blue}{z - \mathsf{fma}\left(x, -3, y \cdot -2\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in x around 0 79.5%

      \[\leadsto \color{blue}{z - -2 \cdot y} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification90.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1.25 \cdot 10^{-31}:\\ \;\;\;\;x + 2 \cdot \left(x + y\right)\\ \mathbf{elif}\;y \leq 0.0085:\\ \;\;\;\;z - x \cdot -3\\ \mathbf{else}:\\ \;\;\;\;z - y \cdot -2\\ \end{array} \]
  5. Add Preprocessing

Alternative 6: 84.9% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -7.7 \cdot 10^{-31}:\\ \;\;\;\;x \cdot 3 - y \cdot -2\\ \mathbf{elif}\;y \leq 0.0085:\\ \;\;\;\;z - x \cdot -3\\ \mathbf{else}:\\ \;\;\;\;z - y \cdot -2\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (if (<= y -7.7e-31)
   (- (* x 3.0) (* y -2.0))
   (if (<= y 0.0085) (- z (* x -3.0)) (- z (* y -2.0)))))
double code(double x, double y, double z) {
	double tmp;
	if (y <= -7.7e-31) {
		tmp = (x * 3.0) - (y * -2.0);
	} else if (y <= 0.0085) {
		tmp = z - (x * -3.0);
	} else {
		tmp = z - (y * -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) :: tmp
    if (y <= (-7.7d-31)) then
        tmp = (x * 3.0d0) - (y * (-2.0d0))
    else if (y <= 0.0085d0) then
        tmp = z - (x * (-3.0d0))
    else
        tmp = z - (y * (-2.0d0))
    end if
    code = tmp
end function
public static double code(double x, double y, double z) {
	double tmp;
	if (y <= -7.7e-31) {
		tmp = (x * 3.0) - (y * -2.0);
	} else if (y <= 0.0085) {
		tmp = z - (x * -3.0);
	} else {
		tmp = z - (y * -2.0);
	}
	return tmp;
}
def code(x, y, z):
	tmp = 0
	if y <= -7.7e-31:
		tmp = (x * 3.0) - (y * -2.0)
	elif y <= 0.0085:
		tmp = z - (x * -3.0)
	else:
		tmp = z - (y * -2.0)
	return tmp
function code(x, y, z)
	tmp = 0.0
	if (y <= -7.7e-31)
		tmp = Float64(Float64(x * 3.0) - Float64(y * -2.0));
	elseif (y <= 0.0085)
		tmp = Float64(z - Float64(x * -3.0));
	else
		tmp = Float64(z - Float64(y * -2.0));
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	tmp = 0.0;
	if (y <= -7.7e-31)
		tmp = (x * 3.0) - (y * -2.0);
	elseif (y <= 0.0085)
		tmp = z - (x * -3.0);
	else
		tmp = z - (y * -2.0);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := If[LessEqual[y, -7.7e-31], N[(N[(x * 3.0), $MachinePrecision] - N[(y * -2.0), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 0.0085], N[(z - N[(x * -3.0), $MachinePrecision]), $MachinePrecision], N[(z - N[(y * -2.0), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -7.7 \cdot 10^{-31}:\\
\;\;\;\;x \cdot 3 - y \cdot -2\\

\mathbf{elif}\;y \leq 0.0085:\\
\;\;\;\;z - x \cdot -3\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -7.70000000000000012e-31

    1. Initial program 99.9%

      \[\left(\left(\left(\left(x + y\right) + y\right) + x\right) + z\right) + x \]
    2. Step-by-step derivation
      1. +-commutative99.9%

        \[\leadsto \color{blue}{\left(z + \left(\left(\left(x + y\right) + y\right) + x\right)\right)} + x \]
      2. associate-+l+99.9%

        \[\leadsto \color{blue}{z + \left(\left(\left(\left(x + y\right) + y\right) + x\right) + x\right)} \]
      3. remove-double-neg99.9%

        \[\leadsto z + \color{blue}{\left(-\left(-\left(\left(\left(\left(x + y\right) + y\right) + x\right) + x\right)\right)\right)} \]
      4. unsub-neg99.9%

        \[\leadsto \color{blue}{z - \left(-\left(\left(\left(\left(x + y\right) + y\right) + x\right) + x\right)\right)} \]
      5. +-commutative99.9%

        \[\leadsto z - \left(-\color{blue}{\left(x + \left(\left(\left(x + y\right) + y\right) + x\right)\right)}\right) \]
      6. +-commutative99.9%

        \[\leadsto z - \left(-\left(x + \color{blue}{\left(x + \left(\left(x + y\right) + y\right)\right)}\right)\right) \]
      7. associate-+l+99.9%

        \[\leadsto z - \left(-\left(x + \left(x + \color{blue}{\left(x + \left(y + y\right)\right)}\right)\right)\right) \]
      8. associate-+r+99.9%

        \[\leadsto z - \left(-\left(x + \color{blue}{\left(\left(x + x\right) + \left(y + y\right)\right)}\right)\right) \]
      9. associate-+r+99.9%

        \[\leadsto z - \left(-\color{blue}{\left(\left(x + \left(x + x\right)\right) + \left(y + y\right)\right)}\right) \]
      10. distribute-neg-in99.9%

        \[\leadsto z - \color{blue}{\left(\left(-\left(x + \left(x + x\right)\right)\right) + \left(-\left(y + y\right)\right)\right)} \]
      11. distribute-neg-out99.9%

        \[\leadsto z - \left(\color{blue}{\left(\left(-x\right) + \left(-\left(x + x\right)\right)\right)} + \left(-\left(y + y\right)\right)\right) \]
      12. distribute-neg-out99.9%

        \[\leadsto z - \left(\left(\left(-x\right) + \left(-\left(x + x\right)\right)\right) + \color{blue}{\left(\left(-y\right) + \left(-y\right)\right)}\right) \]
      13. neg-mul-199.9%

        \[\leadsto z - \left(\left(\color{blue}{-1 \cdot x} + \left(-\left(x + x\right)\right)\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      14. count-299.9%

        \[\leadsto z - \left(\left(-1 \cdot x + \left(-\color{blue}{2 \cdot x}\right)\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      15. distribute-lft-neg-in99.9%

        \[\leadsto z - \left(\left(-1 \cdot x + \color{blue}{\left(-2\right) \cdot x}\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      16. metadata-eval99.9%

        \[\leadsto z - \left(\left(-1 \cdot x + \color{blue}{-2} \cdot x\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      17. metadata-eval99.9%

        \[\leadsto z - \left(\left(-1 \cdot x + \color{blue}{\left(-1 + -1\right)} \cdot x\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      18. distribute-rgt-out99.9%

        \[\leadsto z - \left(\color{blue}{x \cdot \left(-1 + \left(-1 + -1\right)\right)} + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      19. fma-def99.9%

        \[\leadsto z - \color{blue}{\mathsf{fma}\left(x, -1 + \left(-1 + -1\right), \left(-y\right) + \left(-y\right)\right)} \]
    3. Simplified99.9%

      \[\leadsto \color{blue}{z - \mathsf{fma}\left(x, -3, y \cdot -2\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in x around 0 99.9%

      \[\leadsto \color{blue}{\left(z + 3 \cdot x\right) - -2 \cdot y} \]
    6. Taylor expanded in z around 0 90.3%

      \[\leadsto \color{blue}{3 \cdot x} - -2 \cdot y \]

    if -7.70000000000000012e-31 < y < 0.0085000000000000006

    1. Initial program 99.9%

      \[\left(\left(\left(\left(x + y\right) + y\right) + x\right) + z\right) + x \]
    2. Step-by-step derivation
      1. +-commutative99.9%

        \[\leadsto \color{blue}{\left(z + \left(\left(\left(x + y\right) + y\right) + x\right)\right)} + x \]
      2. associate-+l+99.9%

        \[\leadsto \color{blue}{z + \left(\left(\left(\left(x + y\right) + y\right) + x\right) + x\right)} \]
      3. remove-double-neg99.9%

        \[\leadsto z + \color{blue}{\left(-\left(-\left(\left(\left(\left(x + y\right) + y\right) + x\right) + x\right)\right)\right)} \]
      4. unsub-neg99.9%

        \[\leadsto \color{blue}{z - \left(-\left(\left(\left(\left(x + y\right) + y\right) + x\right) + x\right)\right)} \]
      5. +-commutative99.9%

        \[\leadsto z - \left(-\color{blue}{\left(x + \left(\left(\left(x + y\right) + y\right) + x\right)\right)}\right) \]
      6. +-commutative99.9%

        \[\leadsto z - \left(-\left(x + \color{blue}{\left(x + \left(\left(x + y\right) + y\right)\right)}\right)\right) \]
      7. associate-+l+99.9%

        \[\leadsto z - \left(-\left(x + \left(x + \color{blue}{\left(x + \left(y + y\right)\right)}\right)\right)\right) \]
      8. associate-+r+99.9%

        \[\leadsto z - \left(-\left(x + \color{blue}{\left(\left(x + x\right) + \left(y + y\right)\right)}\right)\right) \]
      9. associate-+r+99.9%

        \[\leadsto z - \left(-\color{blue}{\left(\left(x + \left(x + x\right)\right) + \left(y + y\right)\right)}\right) \]
      10. distribute-neg-in99.9%

        \[\leadsto z - \color{blue}{\left(\left(-\left(x + \left(x + x\right)\right)\right) + \left(-\left(y + y\right)\right)\right)} \]
      11. distribute-neg-out99.9%

        \[\leadsto z - \left(\color{blue}{\left(\left(-x\right) + \left(-\left(x + x\right)\right)\right)} + \left(-\left(y + y\right)\right)\right) \]
      12. distribute-neg-out99.9%

        \[\leadsto z - \left(\left(\left(-x\right) + \left(-\left(x + x\right)\right)\right) + \color{blue}{\left(\left(-y\right) + \left(-y\right)\right)}\right) \]
      13. neg-mul-199.9%

        \[\leadsto z - \left(\left(\color{blue}{-1 \cdot x} + \left(-\left(x + x\right)\right)\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      14. count-299.9%

        \[\leadsto z - \left(\left(-1 \cdot x + \left(-\color{blue}{2 \cdot x}\right)\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      15. distribute-lft-neg-in99.9%

        \[\leadsto z - \left(\left(-1 \cdot x + \color{blue}{\left(-2\right) \cdot x}\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      16. metadata-eval99.9%

        \[\leadsto z - \left(\left(-1 \cdot x + \color{blue}{-2} \cdot x\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      17. metadata-eval99.9%

        \[\leadsto z - \left(\left(-1 \cdot x + \color{blue}{\left(-1 + -1\right)} \cdot x\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      18. distribute-rgt-out99.9%

        \[\leadsto z - \left(\color{blue}{x \cdot \left(-1 + \left(-1 + -1\right)\right)} + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      19. fma-def99.9%

        \[\leadsto z - \color{blue}{\mathsf{fma}\left(x, -1 + \left(-1 + -1\right), \left(-y\right) + \left(-y\right)\right)} \]
    3. Simplified99.9%

      \[\leadsto \color{blue}{z - \mathsf{fma}\left(x, -3, y \cdot -2\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around 0 94.4%

      \[\leadsto \color{blue}{z - -3 \cdot x} \]

    if 0.0085000000000000006 < y

    1. Initial program 100.0%

      \[\left(\left(\left(\left(x + y\right) + y\right) + x\right) + z\right) + x \]
    2. Step-by-step derivation
      1. +-commutative100.0%

        \[\leadsto \color{blue}{\left(z + \left(\left(\left(x + y\right) + y\right) + x\right)\right)} + x \]
      2. associate-+l+100.0%

        \[\leadsto \color{blue}{z + \left(\left(\left(\left(x + y\right) + y\right) + x\right) + x\right)} \]
      3. remove-double-neg100.0%

        \[\leadsto z + \color{blue}{\left(-\left(-\left(\left(\left(\left(x + y\right) + y\right) + x\right) + x\right)\right)\right)} \]
      4. unsub-neg100.0%

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

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

        \[\leadsto z - \left(-\left(x + \color{blue}{\left(x + \left(\left(x + y\right) + y\right)\right)}\right)\right) \]
      7. associate-+l+100.0%

        \[\leadsto z - \left(-\left(x + \left(x + \color{blue}{\left(x + \left(y + y\right)\right)}\right)\right)\right) \]
      8. associate-+r+100.0%

        \[\leadsto z - \left(-\left(x + \color{blue}{\left(\left(x + x\right) + \left(y + y\right)\right)}\right)\right) \]
      9. associate-+r+99.9%

        \[\leadsto z - \left(-\color{blue}{\left(\left(x + \left(x + x\right)\right) + \left(y + y\right)\right)}\right) \]
      10. distribute-neg-in99.9%

        \[\leadsto z - \color{blue}{\left(\left(-\left(x + \left(x + x\right)\right)\right) + \left(-\left(y + y\right)\right)\right)} \]
      11. distribute-neg-out99.9%

        \[\leadsto z - \left(\color{blue}{\left(\left(-x\right) + \left(-\left(x + x\right)\right)\right)} + \left(-\left(y + y\right)\right)\right) \]
      12. distribute-neg-out99.9%

        \[\leadsto z - \left(\left(\left(-x\right) + \left(-\left(x + x\right)\right)\right) + \color{blue}{\left(\left(-y\right) + \left(-y\right)\right)}\right) \]
      13. neg-mul-199.9%

        \[\leadsto z - \left(\left(\color{blue}{-1 \cdot x} + \left(-\left(x + x\right)\right)\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      14. count-299.9%

        \[\leadsto z - \left(\left(-1 \cdot x + \left(-\color{blue}{2 \cdot x}\right)\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      15. distribute-lft-neg-in99.9%

        \[\leadsto z - \left(\left(-1 \cdot x + \color{blue}{\left(-2\right) \cdot x}\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      16. metadata-eval99.9%

        \[\leadsto z - \left(\left(-1 \cdot x + \color{blue}{-2} \cdot x\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      17. metadata-eval99.9%

        \[\leadsto z - \left(\left(-1 \cdot x + \color{blue}{\left(-1 + -1\right)} \cdot x\right) + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      18. distribute-rgt-out99.9%

        \[\leadsto z - \left(\color{blue}{x \cdot \left(-1 + \left(-1 + -1\right)\right)} + \left(\left(-y\right) + \left(-y\right)\right)\right) \]
      19. fma-def100.0%

        \[\leadsto z - \color{blue}{\mathsf{fma}\left(x, -1 + \left(-1 + -1\right), \left(-y\right) + \left(-y\right)\right)} \]
    3. Simplified100.0%

      \[\leadsto \color{blue}{z - \mathsf{fma}\left(x, -3, y \cdot -2\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in x around 0 79.5%

      \[\leadsto \color{blue}{z - -2 \cdot y} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification90.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -7.7 \cdot 10^{-31}:\\ \;\;\;\;x \cdot 3 - y \cdot -2\\ \mathbf{elif}\;y \leq 0.0085:\\ \;\;\;\;z - x \cdot -3\\ \mathbf{else}:\\ \;\;\;\;z - y \cdot -2\\ \end{array} \]
  5. Add Preprocessing

Alternative 7: 52.1% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -31 \lor \neg \left(y \leq 1.5 \cdot 10^{-61}\right):\\ \;\;\;\;y \cdot 2\\ \mathbf{else}:\\ \;\;\;\;z\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (if (or (<= y -31.0) (not (<= y 1.5e-61))) (* y 2.0) z))
double code(double x, double y, double z) {
	double tmp;
	if ((y <= -31.0) || !(y <= 1.5e-61)) {
		tmp = y * 2.0;
	} else {
		tmp = z;
	}
	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) :: tmp
    if ((y <= (-31.0d0)) .or. (.not. (y <= 1.5d-61))) then
        tmp = y * 2.0d0
    else
        tmp = z
    end if
    code = tmp
end function
public static double code(double x, double y, double z) {
	double tmp;
	if ((y <= -31.0) || !(y <= 1.5e-61)) {
		tmp = y * 2.0;
	} else {
		tmp = z;
	}
	return tmp;
}
def code(x, y, z):
	tmp = 0
	if (y <= -31.0) or not (y <= 1.5e-61):
		tmp = y * 2.0
	else:
		tmp = z
	return tmp
function code(x, y, z)
	tmp = 0.0
	if ((y <= -31.0) || !(y <= 1.5e-61))
		tmp = Float64(y * 2.0);
	else
		tmp = z;
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	tmp = 0.0;
	if ((y <= -31.0) || ~((y <= 1.5e-61)))
		tmp = y * 2.0;
	else
		tmp = z;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := If[Or[LessEqual[y, -31.0], N[Not[LessEqual[y, 1.5e-61]], $MachinePrecision]], N[(y * 2.0), $MachinePrecision], z]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -31 \lor \neg \left(y \leq 1.5 \cdot 10^{-61}\right):\\
\;\;\;\;y \cdot 2\\

\mathbf{else}:\\
\;\;\;\;z\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -31 or 1.50000000000000006e-61 < y

    1. Initial program 99.9%

      \[\left(\left(\left(\left(x + y\right) + y\right) + x\right) + z\right) + x \]
    2. Step-by-step derivation
      1. associate-+l+99.9%

        \[\leadsto \color{blue}{\left(\left(\left(x + y\right) + y\right) + x\right) + \left(z + x\right)} \]
      2. associate-+l+99.9%

        \[\leadsto \color{blue}{\left(\left(x + y\right) + \left(y + x\right)\right)} + \left(z + x\right) \]
      3. +-commutative99.9%

        \[\leadsto \left(\color{blue}{\left(y + x\right)} + \left(y + x\right)\right) + \left(z + x\right) \]
      4. count-299.9%

        \[\leadsto \color{blue}{2 \cdot \left(y + x\right)} + \left(z + x\right) \]
      5. +-commutative99.9%

        \[\leadsto 2 \cdot \color{blue}{\left(x + y\right)} + \left(z + x\right) \]
      6. +-commutative99.9%

        \[\leadsto 2 \cdot \left(x + y\right) + \color{blue}{\left(x + z\right)} \]
    3. Simplified99.9%

      \[\leadsto \color{blue}{2 \cdot \left(x + y\right) + \left(x + z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 61.9%

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

    if -31 < y < 1.50000000000000006e-61

    1. Initial program 99.9%

      \[\left(\left(\left(\left(x + y\right) + y\right) + x\right) + z\right) + x \]
    2. Step-by-step derivation
      1. associate-+l+99.9%

        \[\leadsto \color{blue}{\left(\left(\left(x + y\right) + y\right) + x\right) + \left(z + x\right)} \]
      2. associate-+l+99.9%

        \[\leadsto \color{blue}{\left(\left(x + y\right) + \left(y + x\right)\right)} + \left(z + x\right) \]
      3. +-commutative99.9%

        \[\leadsto \left(\color{blue}{\left(y + x\right)} + \left(y + x\right)\right) + \left(z + x\right) \]
      4. count-299.9%

        \[\leadsto \color{blue}{2 \cdot \left(y + x\right)} + \left(z + x\right) \]
      5. +-commutative99.9%

        \[\leadsto 2 \cdot \color{blue}{\left(x + y\right)} + \left(z + x\right) \]
      6. +-commutative99.9%

        \[\leadsto 2 \cdot \left(x + y\right) + \color{blue}{\left(x + z\right)} \]
    3. Simplified99.9%

      \[\leadsto \color{blue}{2 \cdot \left(x + y\right) + \left(x + z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in z around inf 51.0%

      \[\leadsto \color{blue}{z} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification56.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -31 \lor \neg \left(y \leq 1.5 \cdot 10^{-61}\right):\\ \;\;\;\;y \cdot 2\\ \mathbf{else}:\\ \;\;\;\;z\\ \end{array} \]
  5. Add Preprocessing

Alternative 8: 99.9% accurate, 1.2× speedup?

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

\\
2 \cdot \left(x + y\right) + \left(z + x\right)
\end{array}
Derivation
  1. Initial program 99.9%

    \[\left(\left(\left(\left(x + y\right) + y\right) + x\right) + z\right) + x \]
  2. Step-by-step derivation
    1. associate-+l+99.9%

      \[\leadsto \color{blue}{\left(\left(\left(x + y\right) + y\right) + x\right) + \left(z + x\right)} \]
    2. associate-+l+99.9%

      \[\leadsto \color{blue}{\left(\left(x + y\right) + \left(y + x\right)\right)} + \left(z + x\right) \]
    3. +-commutative99.9%

      \[\leadsto \left(\color{blue}{\left(y + x\right)} + \left(y + x\right)\right) + \left(z + x\right) \]
    4. count-299.9%

      \[\leadsto \color{blue}{2 \cdot \left(y + x\right)} + \left(z + x\right) \]
    5. +-commutative99.9%

      \[\leadsto 2 \cdot \color{blue}{\left(x + y\right)} + \left(z + x\right) \]
    6. +-commutative99.9%

      \[\leadsto 2 \cdot \left(x + y\right) + \color{blue}{\left(x + z\right)} \]
  3. Simplified99.9%

    \[\leadsto \color{blue}{2 \cdot \left(x + y\right) + \left(x + z\right)} \]
  4. Add Preprocessing
  5. Final simplification99.9%

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

Alternative 9: 34.2% accurate, 11.0× speedup?

\[\begin{array}{l} \\ z \end{array} \]
(FPCore (x y z) :precision binary64 z)
double code(double x, double y, double z) {
	return z;
}
real(8) function code(x, y, z)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    code = z
end function
public static double code(double x, double y, double z) {
	return z;
}
def code(x, y, z):
	return z
function code(x, y, z)
	return z
end
function tmp = code(x, y, z)
	tmp = z;
end
code[x_, y_, z_] := z
\begin{array}{l}

\\
z
\end{array}
Derivation
  1. Initial program 99.9%

    \[\left(\left(\left(\left(x + y\right) + y\right) + x\right) + z\right) + x \]
  2. Step-by-step derivation
    1. associate-+l+99.9%

      \[\leadsto \color{blue}{\left(\left(\left(x + y\right) + y\right) + x\right) + \left(z + x\right)} \]
    2. associate-+l+99.9%

      \[\leadsto \color{blue}{\left(\left(x + y\right) + \left(y + x\right)\right)} + \left(z + x\right) \]
    3. +-commutative99.9%

      \[\leadsto \left(\color{blue}{\left(y + x\right)} + \left(y + x\right)\right) + \left(z + x\right) \]
    4. count-299.9%

      \[\leadsto \color{blue}{2 \cdot \left(y + x\right)} + \left(z + x\right) \]
    5. +-commutative99.9%

      \[\leadsto 2 \cdot \color{blue}{\left(x + y\right)} + \left(z + x\right) \]
    6. +-commutative99.9%

      \[\leadsto 2 \cdot \left(x + y\right) + \color{blue}{\left(x + z\right)} \]
  3. Simplified99.9%

    \[\leadsto \color{blue}{2 \cdot \left(x + y\right) + \left(x + z\right)} \]
  4. Add Preprocessing
  5. Taylor expanded in z around inf 35.6%

    \[\leadsto \color{blue}{z} \]
  6. Final simplification35.6%

    \[\leadsto z \]
  7. Add Preprocessing

Reproduce

?
herbie shell --seed 2024019 
(FPCore (x y z)
  :name "Graphics.Rendering.Plot.Render.Plot.Legend:renderLegendInside from plot-0.2.3.4"
  :precision binary64
  (+ (+ (+ (+ (+ x y) y) x) z) x))