Data.Colour.RGBSpace.HSL:hsl from colour-2.3.3, D

Percentage Accurate: 99.5% → 99.8%
Time: 10.6s
Alternatives: 15
Speedup: 1.2×

Specification

?
\[\begin{array}{l} \\ x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \end{array} \]
(FPCore (x y z)
 :precision binary64
 (+ x (* (* (- y x) 6.0) (- (/ 2.0 3.0) z))))
double code(double x, double y, double z) {
	return x + (((y - x) * 6.0) * ((2.0 / 3.0) - z));
}
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 - x) * 6.0d0) * ((2.0d0 / 3.0d0) - z))
end function
public static double code(double x, double y, double z) {
	return x + (((y - x) * 6.0) * ((2.0 / 3.0) - z));
}
def code(x, y, z):
	return x + (((y - x) * 6.0) * ((2.0 / 3.0) - z))
function code(x, y, z)
	return Float64(x + Float64(Float64(Float64(y - x) * 6.0) * Float64(Float64(2.0 / 3.0) - z)))
end
function tmp = code(x, y, z)
	tmp = x + (((y - x) * 6.0) * ((2.0 / 3.0) - z));
end
code[x_, y_, z_] := N[(x + N[(N[(N[(y - x), $MachinePrecision] * 6.0), $MachinePrecision] * N[(N[(2.0 / 3.0), $MachinePrecision] - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right)
\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 15 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: 99.5% accurate, 1.0× speedup?

\[\begin{array}{l} \\ x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \end{array} \]
(FPCore (x y z)
 :precision binary64
 (+ x (* (* (- y x) 6.0) (- (/ 2.0 3.0) z))))
double code(double x, double y, double z) {
	return x + (((y - x) * 6.0) * ((2.0 / 3.0) - z));
}
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 - x) * 6.0d0) * ((2.0d0 / 3.0d0) - z))
end function
public static double code(double x, double y, double z) {
	return x + (((y - x) * 6.0) * ((2.0 / 3.0) - z));
}
def code(x, y, z):
	return x + (((y - x) * 6.0) * ((2.0 / 3.0) - z))
function code(x, y, z)
	return Float64(x + Float64(Float64(Float64(y - x) * 6.0) * Float64(Float64(2.0 / 3.0) - z)))
end
function tmp = code(x, y, z)
	tmp = x + (((y - x) * 6.0) * ((2.0 / 3.0) - z));
end
code[x_, y_, z_] := N[(x + N[(N[(N[(y - x), $MachinePrecision] * 6.0), $MachinePrecision] * N[(N[(2.0 / 3.0), $MachinePrecision] - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right)
\end{array}

Alternative 1: 99.8% accurate, 0.1× speedup?

\[\begin{array}{l} \\ \mathsf{fma}\left(y - x, 4 + z \cdot -6, x\right) \end{array} \]
(FPCore (x y z) :precision binary64 (fma (- y x) (+ 4.0 (* z -6.0)) x))
double code(double x, double y, double z) {
	return fma((y - x), (4.0 + (z * -6.0)), x);
}
function code(x, y, z)
	return fma(Float64(y - x), Float64(4.0 + Float64(z * -6.0)), x)
end
code[x_, y_, z_] := N[(N[(y - x), $MachinePrecision] * N[(4.0 + N[(z * -6.0), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision]
\begin{array}{l}

\\
\mathsf{fma}\left(y - x, 4 + z \cdot -6, x\right)
\end{array}
Derivation
  1. Initial program 99.6%

    \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
  2. Step-by-step derivation
    1. +-commutative99.6%

      \[\leadsto \color{blue}{\left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) + x} \]
    2. associate-*l*99.8%

      \[\leadsto \color{blue}{\left(y - x\right) \cdot \left(6 \cdot \left(\frac{2}{3} - z\right)\right)} + x \]
    3. fma-define99.8%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y - x, 6 \cdot \left(\frac{2}{3} - z\right), x\right)} \]
    4. sub-neg99.8%

      \[\leadsto \mathsf{fma}\left(y - x, 6 \cdot \color{blue}{\left(\frac{2}{3} + \left(-z\right)\right)}, x\right) \]
    5. distribute-rgt-in99.8%

      \[\leadsto \mathsf{fma}\left(y - x, \color{blue}{\frac{2}{3} \cdot 6 + \left(-z\right) \cdot 6}, x\right) \]
    6. metadata-eval99.8%

      \[\leadsto \mathsf{fma}\left(y - x, \color{blue}{0.6666666666666666} \cdot 6 + \left(-z\right) \cdot 6, x\right) \]
    7. metadata-eval99.8%

      \[\leadsto \mathsf{fma}\left(y - x, \color{blue}{4} + \left(-z\right) \cdot 6, x\right) \]
    8. distribute-lft-neg-out99.8%

      \[\leadsto \mathsf{fma}\left(y - x, 4 + \color{blue}{\left(-z \cdot 6\right)}, x\right) \]
    9. distribute-rgt-neg-in99.8%

      \[\leadsto \mathsf{fma}\left(y - x, 4 + \color{blue}{z \cdot \left(-6\right)}, x\right) \]
    10. metadata-eval99.8%

      \[\leadsto \mathsf{fma}\left(y - x, 4 + z \cdot \color{blue}{-6}, x\right) \]
  3. Simplified99.8%

    \[\leadsto \color{blue}{\mathsf{fma}\left(y - x, 4 + z \cdot -6, x\right)} \]
  4. Add Preprocessing
  5. Final simplification99.8%

    \[\leadsto \mathsf{fma}\left(y - x, 4 + z \cdot -6, x\right) \]
  6. Add Preprocessing

Alternative 2: 50.7% accurate, 0.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := -6 \cdot \left(y \cdot z\right)\\ \mathbf{if}\;z \leq -1.15 \cdot 10^{+215}:\\ \;\;\;\;6 \cdot \left(x \cdot z\right)\\ \mathbf{elif}\;z \leq -1.08 \cdot 10^{-26}:\\ \;\;\;\;t\_0\\ \mathbf{elif}\;z \leq -1.82 \cdot 10^{-181}:\\ \;\;\;\;y \cdot 4\\ \mathbf{elif}\;z \leq 7.2 \cdot 10^{-144}:\\ \;\;\;\;x \cdot -3\\ \mathbf{elif}\;z \leq 1.9 \cdot 10^{-77}:\\ \;\;\;\;y \cdot 4\\ \mathbf{elif}\;z \leq 0.6:\\ \;\;\;\;x \cdot -3\\ \mathbf{else}:\\ \;\;\;\;t\_0\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (let* ((t_0 (* -6.0 (* y z))))
   (if (<= z -1.15e+215)
     (* 6.0 (* x z))
     (if (<= z -1.08e-26)
       t_0
       (if (<= z -1.82e-181)
         (* y 4.0)
         (if (<= z 7.2e-144)
           (* x -3.0)
           (if (<= z 1.9e-77) (* y 4.0) (if (<= z 0.6) (* x -3.0) t_0))))))))
double code(double x, double y, double z) {
	double t_0 = -6.0 * (y * z);
	double tmp;
	if (z <= -1.15e+215) {
		tmp = 6.0 * (x * z);
	} else if (z <= -1.08e-26) {
		tmp = t_0;
	} else if (z <= -1.82e-181) {
		tmp = y * 4.0;
	} else if (z <= 7.2e-144) {
		tmp = x * -3.0;
	} else if (z <= 1.9e-77) {
		tmp = y * 4.0;
	} else if (z <= 0.6) {
		tmp = x * -3.0;
	} else {
		tmp = t_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 = (-6.0d0) * (y * z)
    if (z <= (-1.15d+215)) then
        tmp = 6.0d0 * (x * z)
    else if (z <= (-1.08d-26)) then
        tmp = t_0
    else if (z <= (-1.82d-181)) then
        tmp = y * 4.0d0
    else if (z <= 7.2d-144) then
        tmp = x * (-3.0d0)
    else if (z <= 1.9d-77) then
        tmp = y * 4.0d0
    else if (z <= 0.6d0) then
        tmp = x * (-3.0d0)
    else
        tmp = t_0
    end if
    code = tmp
end function
public static double code(double x, double y, double z) {
	double t_0 = -6.0 * (y * z);
	double tmp;
	if (z <= -1.15e+215) {
		tmp = 6.0 * (x * z);
	} else if (z <= -1.08e-26) {
		tmp = t_0;
	} else if (z <= -1.82e-181) {
		tmp = y * 4.0;
	} else if (z <= 7.2e-144) {
		tmp = x * -3.0;
	} else if (z <= 1.9e-77) {
		tmp = y * 4.0;
	} else if (z <= 0.6) {
		tmp = x * -3.0;
	} else {
		tmp = t_0;
	}
	return tmp;
}
def code(x, y, z):
	t_0 = -6.0 * (y * z)
	tmp = 0
	if z <= -1.15e+215:
		tmp = 6.0 * (x * z)
	elif z <= -1.08e-26:
		tmp = t_0
	elif z <= -1.82e-181:
		tmp = y * 4.0
	elif z <= 7.2e-144:
		tmp = x * -3.0
	elif z <= 1.9e-77:
		tmp = y * 4.0
	elif z <= 0.6:
		tmp = x * -3.0
	else:
		tmp = t_0
	return tmp
function code(x, y, z)
	t_0 = Float64(-6.0 * Float64(y * z))
	tmp = 0.0
	if (z <= -1.15e+215)
		tmp = Float64(6.0 * Float64(x * z));
	elseif (z <= -1.08e-26)
		tmp = t_0;
	elseif (z <= -1.82e-181)
		tmp = Float64(y * 4.0);
	elseif (z <= 7.2e-144)
		tmp = Float64(x * -3.0);
	elseif (z <= 1.9e-77)
		tmp = Float64(y * 4.0);
	elseif (z <= 0.6)
		tmp = Float64(x * -3.0);
	else
		tmp = t_0;
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	t_0 = -6.0 * (y * z);
	tmp = 0.0;
	if (z <= -1.15e+215)
		tmp = 6.0 * (x * z);
	elseif (z <= -1.08e-26)
		tmp = t_0;
	elseif (z <= -1.82e-181)
		tmp = y * 4.0;
	elseif (z <= 7.2e-144)
		tmp = x * -3.0;
	elseif (z <= 1.9e-77)
		tmp = y * 4.0;
	elseif (z <= 0.6)
		tmp = x * -3.0;
	else
		tmp = t_0;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := Block[{t$95$0 = N[(-6.0 * N[(y * z), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[z, -1.15e+215], N[(6.0 * N[(x * z), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, -1.08e-26], t$95$0, If[LessEqual[z, -1.82e-181], N[(y * 4.0), $MachinePrecision], If[LessEqual[z, 7.2e-144], N[(x * -3.0), $MachinePrecision], If[LessEqual[z, 1.9e-77], N[(y * 4.0), $MachinePrecision], If[LessEqual[z, 0.6], N[(x * -3.0), $MachinePrecision], t$95$0]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := -6 \cdot \left(y \cdot z\right)\\
\mathbf{if}\;z \leq -1.15 \cdot 10^{+215}:\\
\;\;\;\;6 \cdot \left(x \cdot z\right)\\

\mathbf{elif}\;z \leq -1.08 \cdot 10^{-26}:\\
\;\;\;\;t\_0\\

\mathbf{elif}\;z \leq -1.82 \cdot 10^{-181}:\\
\;\;\;\;y \cdot 4\\

\mathbf{elif}\;z \leq 7.2 \cdot 10^{-144}:\\
\;\;\;\;x \cdot -3\\

\mathbf{elif}\;z \leq 1.9 \cdot 10^{-77}:\\
\;\;\;\;y \cdot 4\\

\mathbf{elif}\;z \leq 0.6:\\
\;\;\;\;x \cdot -3\\

\mathbf{else}:\\
\;\;\;\;t\_0\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if z < -1.1500000000000001e215

    1. Initial program 100.0%

      \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
    2. Step-by-step derivation
      1. metadata-eval100.0%

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified100.0%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in z around inf 100.0%

      \[\leadsto \color{blue}{z \cdot \left(-6 \cdot \left(y - x\right) + \left(4 \cdot \frac{y - x}{z} + \frac{x}{z}\right)\right)} \]
    6. Taylor expanded in x around inf 67.3%

      \[\leadsto z \cdot \color{blue}{\left(x \cdot \left(6 - 3 \cdot \frac{1}{z}\right)\right)} \]
    7. Step-by-step derivation
      1. associate-*r/67.3%

        \[\leadsto z \cdot \left(x \cdot \left(6 - \color{blue}{\frac{3 \cdot 1}{z}}\right)\right) \]
      2. metadata-eval67.3%

        \[\leadsto z \cdot \left(x \cdot \left(6 - \frac{\color{blue}{3}}{z}\right)\right) \]
    8. Simplified67.3%

      \[\leadsto z \cdot \color{blue}{\left(x \cdot \left(6 - \frac{3}{z}\right)\right)} \]
    9. Taylor expanded in z around inf 67.2%

      \[\leadsto \color{blue}{6 \cdot \left(x \cdot z\right)} \]

    if -1.1500000000000001e215 < z < -1.07999999999999996e-26 or 0.599999999999999978 < z

    1. Initial program 99.7%

      \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
    2. Step-by-step derivation
      1. metadata-eval99.7%

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified99.7%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 99.7%

      \[\leadsto x + \color{blue}{\left(-6 \cdot \left(z \cdot \left(y - x\right)\right) + 4 \cdot \left(y - x\right)\right)} \]
    6. Taylor expanded in z around inf 94.2%

      \[\leadsto \color{blue}{-6 \cdot \left(z \cdot \left(y - x\right)\right)} \]
    7. Taylor expanded in y around inf 61.0%

      \[\leadsto \color{blue}{-6 \cdot \left(y \cdot z\right)} \]
    8. Step-by-step derivation
      1. *-commutative61.0%

        \[\leadsto -6 \cdot \color{blue}{\left(z \cdot y\right)} \]
    9. Simplified61.0%

      \[\leadsto \color{blue}{-6 \cdot \left(z \cdot y\right)} \]

    if -1.07999999999999996e-26 < z < -1.8199999999999999e-181 or 7.2000000000000001e-144 < z < 1.8999999999999999e-77

    1. Initial program 99.4%

      \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
    2. Step-by-step derivation
      1. metadata-eval99.4%

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified99.4%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in z around inf 70.9%

      \[\leadsto \color{blue}{z \cdot \left(-6 \cdot \left(y - x\right) + \left(4 \cdot \frac{y - x}{z} + \frac{x}{z}\right)\right)} \]
    6. Taylor expanded in y around inf 50.2%

      \[\leadsto z \cdot \left(-6 \cdot \left(y - x\right) + \color{blue}{4 \cdot \frac{y}{z}}\right) \]
    7. Taylor expanded in z around 0 73.6%

      \[\leadsto \color{blue}{4 \cdot y} \]
    8. Step-by-step derivation
      1. *-commutative73.6%

        \[\leadsto \color{blue}{y \cdot 4} \]
    9. Simplified73.6%

      \[\leadsto \color{blue}{y \cdot 4} \]

    if -1.8199999999999999e-181 < z < 7.2000000000000001e-144 or 1.8999999999999999e-77 < z < 0.599999999999999978

    1. Initial program 99.4%

      \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
    2. Step-by-step derivation
      1. metadata-eval99.4%

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified99.4%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 60.3%

      \[\leadsto \color{blue}{x \cdot \left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
    6. Step-by-step derivation
      1. +-commutative60.3%

        \[\leadsto x \cdot \color{blue}{\left(-6 \cdot \left(0.6666666666666666 - z\right) + 1\right)} \]
      2. +-commutative60.3%

        \[\leadsto x \cdot \color{blue}{\left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
      3. sub-neg60.3%

        \[\leadsto x \cdot \left(1 + -6 \cdot \color{blue}{\left(0.6666666666666666 + \left(-z\right)\right)}\right) \]
      4. distribute-rgt-in60.3%

        \[\leadsto x \cdot \left(1 + \color{blue}{\left(0.6666666666666666 \cdot -6 + \left(-z\right) \cdot -6\right)}\right) \]
      5. metadata-eval60.3%

        \[\leadsto x \cdot \left(1 + \left(\color{blue}{-4} + \left(-z\right) \cdot -6\right)\right) \]
      6. neg-mul-160.3%

        \[\leadsto x \cdot \left(1 + \left(-4 + \color{blue}{\left(-1 \cdot z\right)} \cdot -6\right)\right) \]
      7. associate-*r*60.3%

        \[\leadsto x \cdot \left(1 + \left(-4 + \color{blue}{-1 \cdot \left(z \cdot -6\right)}\right)\right) \]
      8. *-commutative60.3%

        \[\leadsto x \cdot \left(1 + \left(-4 + -1 \cdot \color{blue}{\left(-6 \cdot z\right)}\right)\right) \]
      9. associate-+r+60.3%

        \[\leadsto x \cdot \color{blue}{\left(\left(1 + -4\right) + -1 \cdot \left(-6 \cdot z\right)\right)} \]
      10. metadata-eval60.3%

        \[\leadsto x \cdot \left(\color{blue}{-3} + -1 \cdot \left(-6 \cdot z\right)\right) \]
      11. associate-*r*60.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{\left(-1 \cdot -6\right) \cdot z}\right) \]
      12. metadata-eval60.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{6} \cdot z\right) \]
      13. *-commutative60.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{z \cdot 6}\right) \]
    7. Simplified60.3%

      \[\leadsto \color{blue}{x \cdot \left(-3 + z \cdot 6\right)} \]
    8. Taylor expanded in z around 0 60.3%

      \[\leadsto \color{blue}{-3 \cdot x} \]
    9. Step-by-step derivation
      1. *-commutative60.3%

        \[\leadsto \color{blue}{x \cdot -3} \]
    10. Simplified60.3%

      \[\leadsto \color{blue}{x \cdot -3} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification63.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -1.15 \cdot 10^{+215}:\\ \;\;\;\;6 \cdot \left(x \cdot z\right)\\ \mathbf{elif}\;z \leq -1.08 \cdot 10^{-26}:\\ \;\;\;\;-6 \cdot \left(y \cdot z\right)\\ \mathbf{elif}\;z \leq -1.82 \cdot 10^{-181}:\\ \;\;\;\;y \cdot 4\\ \mathbf{elif}\;z \leq 7.2 \cdot 10^{-144}:\\ \;\;\;\;x \cdot -3\\ \mathbf{elif}\;z \leq 1.9 \cdot 10^{-77}:\\ \;\;\;\;y \cdot 4\\ \mathbf{elif}\;z \leq 0.6:\\ \;\;\;\;x \cdot -3\\ \mathbf{else}:\\ \;\;\;\;-6 \cdot \left(y \cdot z\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 3: 50.6% accurate, 0.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -3.2 \cdot 10^{+216}:\\ \;\;\;\;6 \cdot \left(x \cdot z\right)\\ \mathbf{elif}\;z \leq -1.08 \cdot 10^{-26}:\\ \;\;\;\;y \cdot \left(z \cdot -6\right)\\ \mathbf{elif}\;z \leq -3 \cdot 10^{-181}:\\ \;\;\;\;y \cdot 4\\ \mathbf{elif}\;z \leq 3.1 \cdot 10^{-144}:\\ \;\;\;\;x \cdot -3\\ \mathbf{elif}\;z \leq 6.6 \cdot 10^{-79}:\\ \;\;\;\;y \cdot 4\\ \mathbf{elif}\;z \leq 0.68:\\ \;\;\;\;x \cdot -3\\ \mathbf{else}:\\ \;\;\;\;-6 \cdot \left(y \cdot z\right)\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (if (<= z -3.2e+216)
   (* 6.0 (* x z))
   (if (<= z -1.08e-26)
     (* y (* z -6.0))
     (if (<= z -3e-181)
       (* y 4.0)
       (if (<= z 3.1e-144)
         (* x -3.0)
         (if (<= z 6.6e-79)
           (* y 4.0)
           (if (<= z 0.68) (* x -3.0) (* -6.0 (* y z)))))))))
double code(double x, double y, double z) {
	double tmp;
	if (z <= -3.2e+216) {
		tmp = 6.0 * (x * z);
	} else if (z <= -1.08e-26) {
		tmp = y * (z * -6.0);
	} else if (z <= -3e-181) {
		tmp = y * 4.0;
	} else if (z <= 3.1e-144) {
		tmp = x * -3.0;
	} else if (z <= 6.6e-79) {
		tmp = y * 4.0;
	} else if (z <= 0.68) {
		tmp = x * -3.0;
	} else {
		tmp = -6.0 * (y * 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 <= (-3.2d+216)) then
        tmp = 6.0d0 * (x * z)
    else if (z <= (-1.08d-26)) then
        tmp = y * (z * (-6.0d0))
    else if (z <= (-3d-181)) then
        tmp = y * 4.0d0
    else if (z <= 3.1d-144) then
        tmp = x * (-3.0d0)
    else if (z <= 6.6d-79) then
        tmp = y * 4.0d0
    else if (z <= 0.68d0) then
        tmp = x * (-3.0d0)
    else
        tmp = (-6.0d0) * (y * z)
    end if
    code = tmp
end function
public static double code(double x, double y, double z) {
	double tmp;
	if (z <= -3.2e+216) {
		tmp = 6.0 * (x * z);
	} else if (z <= -1.08e-26) {
		tmp = y * (z * -6.0);
	} else if (z <= -3e-181) {
		tmp = y * 4.0;
	} else if (z <= 3.1e-144) {
		tmp = x * -3.0;
	} else if (z <= 6.6e-79) {
		tmp = y * 4.0;
	} else if (z <= 0.68) {
		tmp = x * -3.0;
	} else {
		tmp = -6.0 * (y * z);
	}
	return tmp;
}
def code(x, y, z):
	tmp = 0
	if z <= -3.2e+216:
		tmp = 6.0 * (x * z)
	elif z <= -1.08e-26:
		tmp = y * (z * -6.0)
	elif z <= -3e-181:
		tmp = y * 4.0
	elif z <= 3.1e-144:
		tmp = x * -3.0
	elif z <= 6.6e-79:
		tmp = y * 4.0
	elif z <= 0.68:
		tmp = x * -3.0
	else:
		tmp = -6.0 * (y * z)
	return tmp
function code(x, y, z)
	tmp = 0.0
	if (z <= -3.2e+216)
		tmp = Float64(6.0 * Float64(x * z));
	elseif (z <= -1.08e-26)
		tmp = Float64(y * Float64(z * -6.0));
	elseif (z <= -3e-181)
		tmp = Float64(y * 4.0);
	elseif (z <= 3.1e-144)
		tmp = Float64(x * -3.0);
	elseif (z <= 6.6e-79)
		tmp = Float64(y * 4.0);
	elseif (z <= 0.68)
		tmp = Float64(x * -3.0);
	else
		tmp = Float64(-6.0 * Float64(y * z));
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	tmp = 0.0;
	if (z <= -3.2e+216)
		tmp = 6.0 * (x * z);
	elseif (z <= -1.08e-26)
		tmp = y * (z * -6.0);
	elseif (z <= -3e-181)
		tmp = y * 4.0;
	elseif (z <= 3.1e-144)
		tmp = x * -3.0;
	elseif (z <= 6.6e-79)
		tmp = y * 4.0;
	elseif (z <= 0.68)
		tmp = x * -3.0;
	else
		tmp = -6.0 * (y * z);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := If[LessEqual[z, -3.2e+216], N[(6.0 * N[(x * z), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, -1.08e-26], N[(y * N[(z * -6.0), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, -3e-181], N[(y * 4.0), $MachinePrecision], If[LessEqual[z, 3.1e-144], N[(x * -3.0), $MachinePrecision], If[LessEqual[z, 6.6e-79], N[(y * 4.0), $MachinePrecision], If[LessEqual[z, 0.68], N[(x * -3.0), $MachinePrecision], N[(-6.0 * N[(y * z), $MachinePrecision]), $MachinePrecision]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -3.2 \cdot 10^{+216}:\\
\;\;\;\;6 \cdot \left(x \cdot z\right)\\

\mathbf{elif}\;z \leq -1.08 \cdot 10^{-26}:\\
\;\;\;\;y \cdot \left(z \cdot -6\right)\\

\mathbf{elif}\;z \leq -3 \cdot 10^{-181}:\\
\;\;\;\;y \cdot 4\\

\mathbf{elif}\;z \leq 3.1 \cdot 10^{-144}:\\
\;\;\;\;x \cdot -3\\

\mathbf{elif}\;z \leq 6.6 \cdot 10^{-79}:\\
\;\;\;\;y \cdot 4\\

\mathbf{elif}\;z \leq 0.68:\\
\;\;\;\;x \cdot -3\\

\mathbf{else}:\\
\;\;\;\;-6 \cdot \left(y \cdot z\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 5 regimes
  2. if z < -3.1999999999999997e216

    1. Initial program 100.0%

      \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
    2. Step-by-step derivation
      1. metadata-eval100.0%

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified100.0%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in z around inf 100.0%

      \[\leadsto \color{blue}{z \cdot \left(-6 \cdot \left(y - x\right) + \left(4 \cdot \frac{y - x}{z} + \frac{x}{z}\right)\right)} \]
    6. Taylor expanded in x around inf 67.3%

      \[\leadsto z \cdot \color{blue}{\left(x \cdot \left(6 - 3 \cdot \frac{1}{z}\right)\right)} \]
    7. Step-by-step derivation
      1. associate-*r/67.3%

        \[\leadsto z \cdot \left(x \cdot \left(6 - \color{blue}{\frac{3 \cdot 1}{z}}\right)\right) \]
      2. metadata-eval67.3%

        \[\leadsto z \cdot \left(x \cdot \left(6 - \frac{\color{blue}{3}}{z}\right)\right) \]
    8. Simplified67.3%

      \[\leadsto z \cdot \color{blue}{\left(x \cdot \left(6 - \frac{3}{z}\right)\right)} \]
    9. Taylor expanded in z around inf 67.2%

      \[\leadsto \color{blue}{6 \cdot \left(x \cdot z\right)} \]

    if -3.1999999999999997e216 < z < -1.07999999999999996e-26

    1. Initial program 99.6%

      \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
    2. Step-by-step derivation
      1. metadata-eval99.6%

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified99.6%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 99.7%

      \[\leadsto x + \color{blue}{\left(-6 \cdot \left(z \cdot \left(y - x\right)\right) + 4 \cdot \left(y - x\right)\right)} \]
    6. Taylor expanded in z around inf 91.2%

      \[\leadsto \color{blue}{-6 \cdot \left(z \cdot \left(y - x\right)\right)} \]
    7. Taylor expanded in y around inf 53.7%

      \[\leadsto \color{blue}{-6 \cdot \left(y \cdot z\right)} \]
    8. Step-by-step derivation
      1. *-commutative53.7%

        \[\leadsto -6 \cdot \color{blue}{\left(z \cdot y\right)} \]
      2. associate-*r*53.8%

        \[\leadsto \color{blue}{\left(-6 \cdot z\right) \cdot y} \]
      3. *-commutative53.8%

        \[\leadsto \color{blue}{\left(z \cdot -6\right)} \cdot y \]
      4. associate-*r*53.8%

        \[\leadsto \color{blue}{z \cdot \left(-6 \cdot y\right)} \]
    9. Simplified53.8%

      \[\leadsto \color{blue}{z \cdot \left(-6 \cdot y\right)} \]
    10. Taylor expanded in z around 0 53.7%

      \[\leadsto \color{blue}{-6 \cdot \left(y \cdot z\right)} \]
    11. Step-by-step derivation
      1. associate-*r*53.8%

        \[\leadsto \color{blue}{\left(-6 \cdot y\right) \cdot z} \]
      2. *-commutative53.8%

        \[\leadsto \color{blue}{\left(y \cdot -6\right)} \cdot z \]
      3. associate-*r*53.8%

        \[\leadsto \color{blue}{y \cdot \left(-6 \cdot z\right)} \]
    12. Simplified53.8%

      \[\leadsto \color{blue}{y \cdot \left(-6 \cdot z\right)} \]

    if -1.07999999999999996e-26 < z < -2.99999999999999974e-181 or 3.1000000000000001e-144 < z < 6.5999999999999996e-79

    1. Initial program 99.4%

      \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
    2. Step-by-step derivation
      1. metadata-eval99.4%

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified99.4%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in z around inf 70.9%

      \[\leadsto \color{blue}{z \cdot \left(-6 \cdot \left(y - x\right) + \left(4 \cdot \frac{y - x}{z} + \frac{x}{z}\right)\right)} \]
    6. Taylor expanded in y around inf 50.2%

      \[\leadsto z \cdot \left(-6 \cdot \left(y - x\right) + \color{blue}{4 \cdot \frac{y}{z}}\right) \]
    7. Taylor expanded in z around 0 73.6%

      \[\leadsto \color{blue}{4 \cdot y} \]
    8. Step-by-step derivation
      1. *-commutative73.6%

        \[\leadsto \color{blue}{y \cdot 4} \]
    9. Simplified73.6%

      \[\leadsto \color{blue}{y \cdot 4} \]

    if -2.99999999999999974e-181 < z < 3.1000000000000001e-144 or 6.5999999999999996e-79 < z < 0.680000000000000049

    1. Initial program 99.4%

      \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
    2. Step-by-step derivation
      1. metadata-eval99.4%

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified99.4%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 60.3%

      \[\leadsto \color{blue}{x \cdot \left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
    6. Step-by-step derivation
      1. +-commutative60.3%

        \[\leadsto x \cdot \color{blue}{\left(-6 \cdot \left(0.6666666666666666 - z\right) + 1\right)} \]
      2. +-commutative60.3%

        \[\leadsto x \cdot \color{blue}{\left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
      3. sub-neg60.3%

        \[\leadsto x \cdot \left(1 + -6 \cdot \color{blue}{\left(0.6666666666666666 + \left(-z\right)\right)}\right) \]
      4. distribute-rgt-in60.3%

        \[\leadsto x \cdot \left(1 + \color{blue}{\left(0.6666666666666666 \cdot -6 + \left(-z\right) \cdot -6\right)}\right) \]
      5. metadata-eval60.3%

        \[\leadsto x \cdot \left(1 + \left(\color{blue}{-4} + \left(-z\right) \cdot -6\right)\right) \]
      6. neg-mul-160.3%

        \[\leadsto x \cdot \left(1 + \left(-4 + \color{blue}{\left(-1 \cdot z\right)} \cdot -6\right)\right) \]
      7. associate-*r*60.3%

        \[\leadsto x \cdot \left(1 + \left(-4 + \color{blue}{-1 \cdot \left(z \cdot -6\right)}\right)\right) \]
      8. *-commutative60.3%

        \[\leadsto x \cdot \left(1 + \left(-4 + -1 \cdot \color{blue}{\left(-6 \cdot z\right)}\right)\right) \]
      9. associate-+r+60.3%

        \[\leadsto x \cdot \color{blue}{\left(\left(1 + -4\right) + -1 \cdot \left(-6 \cdot z\right)\right)} \]
      10. metadata-eval60.3%

        \[\leadsto x \cdot \left(\color{blue}{-3} + -1 \cdot \left(-6 \cdot z\right)\right) \]
      11. associate-*r*60.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{\left(-1 \cdot -6\right) \cdot z}\right) \]
      12. metadata-eval60.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{6} \cdot z\right) \]
      13. *-commutative60.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{z \cdot 6}\right) \]
    7. Simplified60.3%

      \[\leadsto \color{blue}{x \cdot \left(-3 + z \cdot 6\right)} \]
    8. Taylor expanded in z around 0 60.3%

      \[\leadsto \color{blue}{-3 \cdot x} \]
    9. Step-by-step derivation
      1. *-commutative60.3%

        \[\leadsto \color{blue}{x \cdot -3} \]
    10. Simplified60.3%

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

    if 0.680000000000000049 < z

    1. Initial program 99.8%

      \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
    2. Step-by-step derivation
      1. metadata-eval99.8%

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified99.8%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 99.8%

      \[\leadsto x + \color{blue}{\left(-6 \cdot \left(z \cdot \left(y - x\right)\right) + 4 \cdot \left(y - x\right)\right)} \]
    6. Taylor expanded in z around inf 96.6%

      \[\leadsto \color{blue}{-6 \cdot \left(z \cdot \left(y - x\right)\right)} \]
    7. Taylor expanded in y around inf 66.9%

      \[\leadsto \color{blue}{-6 \cdot \left(y \cdot z\right)} \]
    8. Step-by-step derivation
      1. *-commutative66.9%

        \[\leadsto -6 \cdot \color{blue}{\left(z \cdot y\right)} \]
    9. Simplified66.9%

      \[\leadsto \color{blue}{-6 \cdot \left(z \cdot y\right)} \]
  3. Recombined 5 regimes into one program.
  4. Final simplification63.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -3.2 \cdot 10^{+216}:\\ \;\;\;\;6 \cdot \left(x \cdot z\right)\\ \mathbf{elif}\;z \leq -1.08 \cdot 10^{-26}:\\ \;\;\;\;y \cdot \left(z \cdot -6\right)\\ \mathbf{elif}\;z \leq -3 \cdot 10^{-181}:\\ \;\;\;\;y \cdot 4\\ \mathbf{elif}\;z \leq 3.1 \cdot 10^{-144}:\\ \;\;\;\;x \cdot -3\\ \mathbf{elif}\;z \leq 6.6 \cdot 10^{-79}:\\ \;\;\;\;y \cdot 4\\ \mathbf{elif}\;z \leq 0.68:\\ \;\;\;\;x \cdot -3\\ \mathbf{else}:\\ \;\;\;\;-6 \cdot \left(y \cdot z\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 4: 50.7% accurate, 0.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -9 \cdot 10^{+211}:\\ \;\;\;\;6 \cdot \left(x \cdot z\right)\\ \mathbf{elif}\;z \leq -1.08 \cdot 10^{-26}:\\ \;\;\;\;z \cdot \left(y \cdot -6\right)\\ \mathbf{elif}\;z \leq -2.2 \cdot 10^{-181}:\\ \;\;\;\;y \cdot 4\\ \mathbf{elif}\;z \leq 1.16 \cdot 10^{-144}:\\ \;\;\;\;x \cdot -3\\ \mathbf{elif}\;z \leq 5.2 \cdot 10^{-78}:\\ \;\;\;\;y \cdot 4\\ \mathbf{elif}\;z \leq 0.58:\\ \;\;\;\;x \cdot -3\\ \mathbf{else}:\\ \;\;\;\;-6 \cdot \left(y \cdot z\right)\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (if (<= z -9e+211)
   (* 6.0 (* x z))
   (if (<= z -1.08e-26)
     (* z (* y -6.0))
     (if (<= z -2.2e-181)
       (* y 4.0)
       (if (<= z 1.16e-144)
         (* x -3.0)
         (if (<= z 5.2e-78)
           (* y 4.0)
           (if (<= z 0.58) (* x -3.0) (* -6.0 (* y z)))))))))
double code(double x, double y, double z) {
	double tmp;
	if (z <= -9e+211) {
		tmp = 6.0 * (x * z);
	} else if (z <= -1.08e-26) {
		tmp = z * (y * -6.0);
	} else if (z <= -2.2e-181) {
		tmp = y * 4.0;
	} else if (z <= 1.16e-144) {
		tmp = x * -3.0;
	} else if (z <= 5.2e-78) {
		tmp = y * 4.0;
	} else if (z <= 0.58) {
		tmp = x * -3.0;
	} else {
		tmp = -6.0 * (y * 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 <= (-9d+211)) then
        tmp = 6.0d0 * (x * z)
    else if (z <= (-1.08d-26)) then
        tmp = z * (y * (-6.0d0))
    else if (z <= (-2.2d-181)) then
        tmp = y * 4.0d0
    else if (z <= 1.16d-144) then
        tmp = x * (-3.0d0)
    else if (z <= 5.2d-78) then
        tmp = y * 4.0d0
    else if (z <= 0.58d0) then
        tmp = x * (-3.0d0)
    else
        tmp = (-6.0d0) * (y * z)
    end if
    code = tmp
end function
public static double code(double x, double y, double z) {
	double tmp;
	if (z <= -9e+211) {
		tmp = 6.0 * (x * z);
	} else if (z <= -1.08e-26) {
		tmp = z * (y * -6.0);
	} else if (z <= -2.2e-181) {
		tmp = y * 4.0;
	} else if (z <= 1.16e-144) {
		tmp = x * -3.0;
	} else if (z <= 5.2e-78) {
		tmp = y * 4.0;
	} else if (z <= 0.58) {
		tmp = x * -3.0;
	} else {
		tmp = -6.0 * (y * z);
	}
	return tmp;
}
def code(x, y, z):
	tmp = 0
	if z <= -9e+211:
		tmp = 6.0 * (x * z)
	elif z <= -1.08e-26:
		tmp = z * (y * -6.0)
	elif z <= -2.2e-181:
		tmp = y * 4.0
	elif z <= 1.16e-144:
		tmp = x * -3.0
	elif z <= 5.2e-78:
		tmp = y * 4.0
	elif z <= 0.58:
		tmp = x * -3.0
	else:
		tmp = -6.0 * (y * z)
	return tmp
function code(x, y, z)
	tmp = 0.0
	if (z <= -9e+211)
		tmp = Float64(6.0 * Float64(x * z));
	elseif (z <= -1.08e-26)
		tmp = Float64(z * Float64(y * -6.0));
	elseif (z <= -2.2e-181)
		tmp = Float64(y * 4.0);
	elseif (z <= 1.16e-144)
		tmp = Float64(x * -3.0);
	elseif (z <= 5.2e-78)
		tmp = Float64(y * 4.0);
	elseif (z <= 0.58)
		tmp = Float64(x * -3.0);
	else
		tmp = Float64(-6.0 * Float64(y * z));
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	tmp = 0.0;
	if (z <= -9e+211)
		tmp = 6.0 * (x * z);
	elseif (z <= -1.08e-26)
		tmp = z * (y * -6.0);
	elseif (z <= -2.2e-181)
		tmp = y * 4.0;
	elseif (z <= 1.16e-144)
		tmp = x * -3.0;
	elseif (z <= 5.2e-78)
		tmp = y * 4.0;
	elseif (z <= 0.58)
		tmp = x * -3.0;
	else
		tmp = -6.0 * (y * z);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := If[LessEqual[z, -9e+211], N[(6.0 * N[(x * z), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, -1.08e-26], N[(z * N[(y * -6.0), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, -2.2e-181], N[(y * 4.0), $MachinePrecision], If[LessEqual[z, 1.16e-144], N[(x * -3.0), $MachinePrecision], If[LessEqual[z, 5.2e-78], N[(y * 4.0), $MachinePrecision], If[LessEqual[z, 0.58], N[(x * -3.0), $MachinePrecision], N[(-6.0 * N[(y * z), $MachinePrecision]), $MachinePrecision]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -9 \cdot 10^{+211}:\\
\;\;\;\;6 \cdot \left(x \cdot z\right)\\

\mathbf{elif}\;z \leq -1.08 \cdot 10^{-26}:\\
\;\;\;\;z \cdot \left(y \cdot -6\right)\\

\mathbf{elif}\;z \leq -2.2 \cdot 10^{-181}:\\
\;\;\;\;y \cdot 4\\

\mathbf{elif}\;z \leq 1.16 \cdot 10^{-144}:\\
\;\;\;\;x \cdot -3\\

\mathbf{elif}\;z \leq 5.2 \cdot 10^{-78}:\\
\;\;\;\;y \cdot 4\\

\mathbf{elif}\;z \leq 0.58:\\
\;\;\;\;x \cdot -3\\

\mathbf{else}:\\
\;\;\;\;-6 \cdot \left(y \cdot z\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 5 regimes
  2. if z < -9e211

    1. Initial program 100.0%

      \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
    2. Step-by-step derivation
      1. metadata-eval100.0%

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified100.0%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in z around inf 100.0%

      \[\leadsto \color{blue}{z \cdot \left(-6 \cdot \left(y - x\right) + \left(4 \cdot \frac{y - x}{z} + \frac{x}{z}\right)\right)} \]
    6. Taylor expanded in x around inf 67.3%

      \[\leadsto z \cdot \color{blue}{\left(x \cdot \left(6 - 3 \cdot \frac{1}{z}\right)\right)} \]
    7. Step-by-step derivation
      1. associate-*r/67.3%

        \[\leadsto z \cdot \left(x \cdot \left(6 - \color{blue}{\frac{3 \cdot 1}{z}}\right)\right) \]
      2. metadata-eval67.3%

        \[\leadsto z \cdot \left(x \cdot \left(6 - \frac{\color{blue}{3}}{z}\right)\right) \]
    8. Simplified67.3%

      \[\leadsto z \cdot \color{blue}{\left(x \cdot \left(6 - \frac{3}{z}\right)\right)} \]
    9. Taylor expanded in z around inf 67.2%

      \[\leadsto \color{blue}{6 \cdot \left(x \cdot z\right)} \]

    if -9e211 < z < -1.07999999999999996e-26

    1. Initial program 99.6%

      \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
    2. Step-by-step derivation
      1. metadata-eval99.6%

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified99.6%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 99.7%

      \[\leadsto x + \color{blue}{\left(-6 \cdot \left(z \cdot \left(y - x\right)\right) + 4 \cdot \left(y - x\right)\right)} \]
    6. Taylor expanded in z around inf 91.2%

      \[\leadsto \color{blue}{-6 \cdot \left(z \cdot \left(y - x\right)\right)} \]
    7. Taylor expanded in y around inf 53.7%

      \[\leadsto \color{blue}{-6 \cdot \left(y \cdot z\right)} \]
    8. Step-by-step derivation
      1. *-commutative53.7%

        \[\leadsto -6 \cdot \color{blue}{\left(z \cdot y\right)} \]
      2. associate-*r*53.8%

        \[\leadsto \color{blue}{\left(-6 \cdot z\right) \cdot y} \]
      3. *-commutative53.8%

        \[\leadsto \color{blue}{\left(z \cdot -6\right)} \cdot y \]
      4. associate-*r*53.8%

        \[\leadsto \color{blue}{z \cdot \left(-6 \cdot y\right)} \]
    9. Simplified53.8%

      \[\leadsto \color{blue}{z \cdot \left(-6 \cdot y\right)} \]

    if -1.07999999999999996e-26 < z < -2.19999999999999997e-181 or 1.15999999999999994e-144 < z < 5.2000000000000002e-78

    1. Initial program 99.4%

      \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
    2. Step-by-step derivation
      1. metadata-eval99.4%

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified99.4%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in z around inf 70.9%

      \[\leadsto \color{blue}{z \cdot \left(-6 \cdot \left(y - x\right) + \left(4 \cdot \frac{y - x}{z} + \frac{x}{z}\right)\right)} \]
    6. Taylor expanded in y around inf 50.2%

      \[\leadsto z \cdot \left(-6 \cdot \left(y - x\right) + \color{blue}{4 \cdot \frac{y}{z}}\right) \]
    7. Taylor expanded in z around 0 73.6%

      \[\leadsto \color{blue}{4 \cdot y} \]
    8. Step-by-step derivation
      1. *-commutative73.6%

        \[\leadsto \color{blue}{y \cdot 4} \]
    9. Simplified73.6%

      \[\leadsto \color{blue}{y \cdot 4} \]

    if -2.19999999999999997e-181 < z < 1.15999999999999994e-144 or 5.2000000000000002e-78 < z < 0.57999999999999996

    1. Initial program 99.4%

      \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
    2. Step-by-step derivation
      1. metadata-eval99.4%

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified99.4%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 60.3%

      \[\leadsto \color{blue}{x \cdot \left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
    6. Step-by-step derivation
      1. +-commutative60.3%

        \[\leadsto x \cdot \color{blue}{\left(-6 \cdot \left(0.6666666666666666 - z\right) + 1\right)} \]
      2. +-commutative60.3%

        \[\leadsto x \cdot \color{blue}{\left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
      3. sub-neg60.3%

        \[\leadsto x \cdot \left(1 + -6 \cdot \color{blue}{\left(0.6666666666666666 + \left(-z\right)\right)}\right) \]
      4. distribute-rgt-in60.3%

        \[\leadsto x \cdot \left(1 + \color{blue}{\left(0.6666666666666666 \cdot -6 + \left(-z\right) \cdot -6\right)}\right) \]
      5. metadata-eval60.3%

        \[\leadsto x \cdot \left(1 + \left(\color{blue}{-4} + \left(-z\right) \cdot -6\right)\right) \]
      6. neg-mul-160.3%

        \[\leadsto x \cdot \left(1 + \left(-4 + \color{blue}{\left(-1 \cdot z\right)} \cdot -6\right)\right) \]
      7. associate-*r*60.3%

        \[\leadsto x \cdot \left(1 + \left(-4 + \color{blue}{-1 \cdot \left(z \cdot -6\right)}\right)\right) \]
      8. *-commutative60.3%

        \[\leadsto x \cdot \left(1 + \left(-4 + -1 \cdot \color{blue}{\left(-6 \cdot z\right)}\right)\right) \]
      9. associate-+r+60.3%

        \[\leadsto x \cdot \color{blue}{\left(\left(1 + -4\right) + -1 \cdot \left(-6 \cdot z\right)\right)} \]
      10. metadata-eval60.3%

        \[\leadsto x \cdot \left(\color{blue}{-3} + -1 \cdot \left(-6 \cdot z\right)\right) \]
      11. associate-*r*60.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{\left(-1 \cdot -6\right) \cdot z}\right) \]
      12. metadata-eval60.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{6} \cdot z\right) \]
      13. *-commutative60.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{z \cdot 6}\right) \]
    7. Simplified60.3%

      \[\leadsto \color{blue}{x \cdot \left(-3 + z \cdot 6\right)} \]
    8. Taylor expanded in z around 0 60.3%

      \[\leadsto \color{blue}{-3 \cdot x} \]
    9. Step-by-step derivation
      1. *-commutative60.3%

        \[\leadsto \color{blue}{x \cdot -3} \]
    10. Simplified60.3%

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

    if 0.57999999999999996 < z

    1. Initial program 99.8%

      \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
    2. Step-by-step derivation
      1. metadata-eval99.8%

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified99.8%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 99.8%

      \[\leadsto x + \color{blue}{\left(-6 \cdot \left(z \cdot \left(y - x\right)\right) + 4 \cdot \left(y - x\right)\right)} \]
    6. Taylor expanded in z around inf 96.6%

      \[\leadsto \color{blue}{-6 \cdot \left(z \cdot \left(y - x\right)\right)} \]
    7. Taylor expanded in y around inf 66.9%

      \[\leadsto \color{blue}{-6 \cdot \left(y \cdot z\right)} \]
    8. Step-by-step derivation
      1. *-commutative66.9%

        \[\leadsto -6 \cdot \color{blue}{\left(z \cdot y\right)} \]
    9. Simplified66.9%

      \[\leadsto \color{blue}{-6 \cdot \left(z \cdot y\right)} \]
  3. Recombined 5 regimes into one program.
  4. Final simplification63.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -9 \cdot 10^{+211}:\\ \;\;\;\;6 \cdot \left(x \cdot z\right)\\ \mathbf{elif}\;z \leq -1.08 \cdot 10^{-26}:\\ \;\;\;\;z \cdot \left(y \cdot -6\right)\\ \mathbf{elif}\;z \leq -2.2 \cdot 10^{-181}:\\ \;\;\;\;y \cdot 4\\ \mathbf{elif}\;z \leq 1.16 \cdot 10^{-144}:\\ \;\;\;\;x \cdot -3\\ \mathbf{elif}\;z \leq 5.2 \cdot 10^{-78}:\\ \;\;\;\;y \cdot 4\\ \mathbf{elif}\;z \leq 0.58:\\ \;\;\;\;x \cdot -3\\ \mathbf{else}:\\ \;\;\;\;-6 \cdot \left(y \cdot z\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 5: 50.7% accurate, 0.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -9 \cdot 10^{+213}:\\ \;\;\;\;z \cdot \left(x \cdot 6\right)\\ \mathbf{elif}\;z \leq -1.08 \cdot 10^{-26}:\\ \;\;\;\;z \cdot \left(y \cdot -6\right)\\ \mathbf{elif}\;z \leq -2.15 \cdot 10^{-181}:\\ \;\;\;\;y \cdot 4\\ \mathbf{elif}\;z \leq 2.15 \cdot 10^{-144}:\\ \;\;\;\;x \cdot -3\\ \mathbf{elif}\;z \leq 1.7 \cdot 10^{-77}:\\ \;\;\;\;y \cdot 4\\ \mathbf{elif}\;z \leq 0.58:\\ \;\;\;\;x \cdot -3\\ \mathbf{else}:\\ \;\;\;\;-6 \cdot \left(y \cdot z\right)\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (if (<= z -9e+213)
   (* z (* x 6.0))
   (if (<= z -1.08e-26)
     (* z (* y -6.0))
     (if (<= z -2.15e-181)
       (* y 4.0)
       (if (<= z 2.15e-144)
         (* x -3.0)
         (if (<= z 1.7e-77)
           (* y 4.0)
           (if (<= z 0.58) (* x -3.0) (* -6.0 (* y z)))))))))
double code(double x, double y, double z) {
	double tmp;
	if (z <= -9e+213) {
		tmp = z * (x * 6.0);
	} else if (z <= -1.08e-26) {
		tmp = z * (y * -6.0);
	} else if (z <= -2.15e-181) {
		tmp = y * 4.0;
	} else if (z <= 2.15e-144) {
		tmp = x * -3.0;
	} else if (z <= 1.7e-77) {
		tmp = y * 4.0;
	} else if (z <= 0.58) {
		tmp = x * -3.0;
	} else {
		tmp = -6.0 * (y * 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 <= (-9d+213)) then
        tmp = z * (x * 6.0d0)
    else if (z <= (-1.08d-26)) then
        tmp = z * (y * (-6.0d0))
    else if (z <= (-2.15d-181)) then
        tmp = y * 4.0d0
    else if (z <= 2.15d-144) then
        tmp = x * (-3.0d0)
    else if (z <= 1.7d-77) then
        tmp = y * 4.0d0
    else if (z <= 0.58d0) then
        tmp = x * (-3.0d0)
    else
        tmp = (-6.0d0) * (y * z)
    end if
    code = tmp
end function
public static double code(double x, double y, double z) {
	double tmp;
	if (z <= -9e+213) {
		tmp = z * (x * 6.0);
	} else if (z <= -1.08e-26) {
		tmp = z * (y * -6.0);
	} else if (z <= -2.15e-181) {
		tmp = y * 4.0;
	} else if (z <= 2.15e-144) {
		tmp = x * -3.0;
	} else if (z <= 1.7e-77) {
		tmp = y * 4.0;
	} else if (z <= 0.58) {
		tmp = x * -3.0;
	} else {
		tmp = -6.0 * (y * z);
	}
	return tmp;
}
def code(x, y, z):
	tmp = 0
	if z <= -9e+213:
		tmp = z * (x * 6.0)
	elif z <= -1.08e-26:
		tmp = z * (y * -6.0)
	elif z <= -2.15e-181:
		tmp = y * 4.0
	elif z <= 2.15e-144:
		tmp = x * -3.0
	elif z <= 1.7e-77:
		tmp = y * 4.0
	elif z <= 0.58:
		tmp = x * -3.0
	else:
		tmp = -6.0 * (y * z)
	return tmp
function code(x, y, z)
	tmp = 0.0
	if (z <= -9e+213)
		tmp = Float64(z * Float64(x * 6.0));
	elseif (z <= -1.08e-26)
		tmp = Float64(z * Float64(y * -6.0));
	elseif (z <= -2.15e-181)
		tmp = Float64(y * 4.0);
	elseif (z <= 2.15e-144)
		tmp = Float64(x * -3.0);
	elseif (z <= 1.7e-77)
		tmp = Float64(y * 4.0);
	elseif (z <= 0.58)
		tmp = Float64(x * -3.0);
	else
		tmp = Float64(-6.0 * Float64(y * z));
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	tmp = 0.0;
	if (z <= -9e+213)
		tmp = z * (x * 6.0);
	elseif (z <= -1.08e-26)
		tmp = z * (y * -6.0);
	elseif (z <= -2.15e-181)
		tmp = y * 4.0;
	elseif (z <= 2.15e-144)
		tmp = x * -3.0;
	elseif (z <= 1.7e-77)
		tmp = y * 4.0;
	elseif (z <= 0.58)
		tmp = x * -3.0;
	else
		tmp = -6.0 * (y * z);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := If[LessEqual[z, -9e+213], N[(z * N[(x * 6.0), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, -1.08e-26], N[(z * N[(y * -6.0), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, -2.15e-181], N[(y * 4.0), $MachinePrecision], If[LessEqual[z, 2.15e-144], N[(x * -3.0), $MachinePrecision], If[LessEqual[z, 1.7e-77], N[(y * 4.0), $MachinePrecision], If[LessEqual[z, 0.58], N[(x * -3.0), $MachinePrecision], N[(-6.0 * N[(y * z), $MachinePrecision]), $MachinePrecision]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -9 \cdot 10^{+213}:\\
\;\;\;\;z \cdot \left(x \cdot 6\right)\\

\mathbf{elif}\;z \leq -1.08 \cdot 10^{-26}:\\
\;\;\;\;z \cdot \left(y \cdot -6\right)\\

\mathbf{elif}\;z \leq -2.15 \cdot 10^{-181}:\\
\;\;\;\;y \cdot 4\\

\mathbf{elif}\;z \leq 2.15 \cdot 10^{-144}:\\
\;\;\;\;x \cdot -3\\

\mathbf{elif}\;z \leq 1.7 \cdot 10^{-77}:\\
\;\;\;\;y \cdot 4\\

\mathbf{elif}\;z \leq 0.58:\\
\;\;\;\;x \cdot -3\\

\mathbf{else}:\\
\;\;\;\;-6 \cdot \left(y \cdot z\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 5 regimes
  2. if z < -9.0000000000000003e213

    1. Initial program 100.0%

      \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
    2. Step-by-step derivation
      1. metadata-eval100.0%

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified100.0%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in z around inf 100.0%

      \[\leadsto \color{blue}{z \cdot \left(-6 \cdot \left(y - x\right) + \left(4 \cdot \frac{y - x}{z} + \frac{x}{z}\right)\right)} \]
    6. Taylor expanded in x around inf 67.3%

      \[\leadsto z \cdot \color{blue}{\left(x \cdot \left(6 - 3 \cdot \frac{1}{z}\right)\right)} \]
    7. Step-by-step derivation
      1. associate-*r/67.3%

        \[\leadsto z \cdot \left(x \cdot \left(6 - \color{blue}{\frac{3 \cdot 1}{z}}\right)\right) \]
      2. metadata-eval67.3%

        \[\leadsto z \cdot \left(x \cdot \left(6 - \frac{\color{blue}{3}}{z}\right)\right) \]
    8. Simplified67.3%

      \[\leadsto z \cdot \color{blue}{\left(x \cdot \left(6 - \frac{3}{z}\right)\right)} \]
    9. Taylor expanded in z around inf 67.2%

      \[\leadsto \color{blue}{6 \cdot \left(x \cdot z\right)} \]
    10. Step-by-step derivation
      1. associate-*r*67.3%

        \[\leadsto \color{blue}{\left(6 \cdot x\right) \cdot z} \]
    11. Simplified67.3%

      \[\leadsto \color{blue}{\left(6 \cdot x\right) \cdot z} \]

    if -9.0000000000000003e213 < z < -1.07999999999999996e-26

    1. Initial program 99.6%

      \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
    2. Step-by-step derivation
      1. metadata-eval99.6%

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified99.6%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 99.7%

      \[\leadsto x + \color{blue}{\left(-6 \cdot \left(z \cdot \left(y - x\right)\right) + 4 \cdot \left(y - x\right)\right)} \]
    6. Taylor expanded in z around inf 91.2%

      \[\leadsto \color{blue}{-6 \cdot \left(z \cdot \left(y - x\right)\right)} \]
    7. Taylor expanded in y around inf 53.7%

      \[\leadsto \color{blue}{-6 \cdot \left(y \cdot z\right)} \]
    8. Step-by-step derivation
      1. *-commutative53.7%

        \[\leadsto -6 \cdot \color{blue}{\left(z \cdot y\right)} \]
      2. associate-*r*53.8%

        \[\leadsto \color{blue}{\left(-6 \cdot z\right) \cdot y} \]
      3. *-commutative53.8%

        \[\leadsto \color{blue}{\left(z \cdot -6\right)} \cdot y \]
      4. associate-*r*53.8%

        \[\leadsto \color{blue}{z \cdot \left(-6 \cdot y\right)} \]
    9. Simplified53.8%

      \[\leadsto \color{blue}{z \cdot \left(-6 \cdot y\right)} \]

    if -1.07999999999999996e-26 < z < -2.15e-181 or 2.14999999999999995e-144 < z < 1.69999999999999991e-77

    1. Initial program 99.4%

      \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
    2. Step-by-step derivation
      1. metadata-eval99.4%

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified99.4%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in z around inf 70.9%

      \[\leadsto \color{blue}{z \cdot \left(-6 \cdot \left(y - x\right) + \left(4 \cdot \frac{y - x}{z} + \frac{x}{z}\right)\right)} \]
    6. Taylor expanded in y around inf 50.2%

      \[\leadsto z \cdot \left(-6 \cdot \left(y - x\right) + \color{blue}{4 \cdot \frac{y}{z}}\right) \]
    7. Taylor expanded in z around 0 73.6%

      \[\leadsto \color{blue}{4 \cdot y} \]
    8. Step-by-step derivation
      1. *-commutative73.6%

        \[\leadsto \color{blue}{y \cdot 4} \]
    9. Simplified73.6%

      \[\leadsto \color{blue}{y \cdot 4} \]

    if -2.15e-181 < z < 2.14999999999999995e-144 or 1.69999999999999991e-77 < z < 0.57999999999999996

    1. Initial program 99.4%

      \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
    2. Step-by-step derivation
      1. metadata-eval99.4%

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified99.4%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 60.3%

      \[\leadsto \color{blue}{x \cdot \left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
    6. Step-by-step derivation
      1. +-commutative60.3%

        \[\leadsto x \cdot \color{blue}{\left(-6 \cdot \left(0.6666666666666666 - z\right) + 1\right)} \]
      2. +-commutative60.3%

        \[\leadsto x \cdot \color{blue}{\left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
      3. sub-neg60.3%

        \[\leadsto x \cdot \left(1 + -6 \cdot \color{blue}{\left(0.6666666666666666 + \left(-z\right)\right)}\right) \]
      4. distribute-rgt-in60.3%

        \[\leadsto x \cdot \left(1 + \color{blue}{\left(0.6666666666666666 \cdot -6 + \left(-z\right) \cdot -6\right)}\right) \]
      5. metadata-eval60.3%

        \[\leadsto x \cdot \left(1 + \left(\color{blue}{-4} + \left(-z\right) \cdot -6\right)\right) \]
      6. neg-mul-160.3%

        \[\leadsto x \cdot \left(1 + \left(-4 + \color{blue}{\left(-1 \cdot z\right)} \cdot -6\right)\right) \]
      7. associate-*r*60.3%

        \[\leadsto x \cdot \left(1 + \left(-4 + \color{blue}{-1 \cdot \left(z \cdot -6\right)}\right)\right) \]
      8. *-commutative60.3%

        \[\leadsto x \cdot \left(1 + \left(-4 + -1 \cdot \color{blue}{\left(-6 \cdot z\right)}\right)\right) \]
      9. associate-+r+60.3%

        \[\leadsto x \cdot \color{blue}{\left(\left(1 + -4\right) + -1 \cdot \left(-6 \cdot z\right)\right)} \]
      10. metadata-eval60.3%

        \[\leadsto x \cdot \left(\color{blue}{-3} + -1 \cdot \left(-6 \cdot z\right)\right) \]
      11. associate-*r*60.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{\left(-1 \cdot -6\right) \cdot z}\right) \]
      12. metadata-eval60.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{6} \cdot z\right) \]
      13. *-commutative60.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{z \cdot 6}\right) \]
    7. Simplified60.3%

      \[\leadsto \color{blue}{x \cdot \left(-3 + z \cdot 6\right)} \]
    8. Taylor expanded in z around 0 60.3%

      \[\leadsto \color{blue}{-3 \cdot x} \]
    9. Step-by-step derivation
      1. *-commutative60.3%

        \[\leadsto \color{blue}{x \cdot -3} \]
    10. Simplified60.3%

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

    if 0.57999999999999996 < z

    1. Initial program 99.8%

      \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
    2. Step-by-step derivation
      1. metadata-eval99.8%

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified99.8%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 99.8%

      \[\leadsto x + \color{blue}{\left(-6 \cdot \left(z \cdot \left(y - x\right)\right) + 4 \cdot \left(y - x\right)\right)} \]
    6. Taylor expanded in z around inf 96.6%

      \[\leadsto \color{blue}{-6 \cdot \left(z \cdot \left(y - x\right)\right)} \]
    7. Taylor expanded in y around inf 66.9%

      \[\leadsto \color{blue}{-6 \cdot \left(y \cdot z\right)} \]
    8. Step-by-step derivation
      1. *-commutative66.9%

        \[\leadsto -6 \cdot \color{blue}{\left(z \cdot y\right)} \]
    9. Simplified66.9%

      \[\leadsto \color{blue}{-6 \cdot \left(z \cdot y\right)} \]
  3. Recombined 5 regimes into one program.
  4. Final simplification63.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -9 \cdot 10^{+213}:\\ \;\;\;\;z \cdot \left(x \cdot 6\right)\\ \mathbf{elif}\;z \leq -1.08 \cdot 10^{-26}:\\ \;\;\;\;z \cdot \left(y \cdot -6\right)\\ \mathbf{elif}\;z \leq -2.15 \cdot 10^{-181}:\\ \;\;\;\;y \cdot 4\\ \mathbf{elif}\;z \leq 2.15 \cdot 10^{-144}:\\ \;\;\;\;x \cdot -3\\ \mathbf{elif}\;z \leq 1.7 \cdot 10^{-77}:\\ \;\;\;\;y \cdot 4\\ \mathbf{elif}\;z \leq 0.58:\\ \;\;\;\;x \cdot -3\\ \mathbf{else}:\\ \;\;\;\;-6 \cdot \left(y \cdot z\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 6: 73.2% accurate, 0.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := -6 \cdot \left(\left(y - x\right) \cdot z\right)\\ \mathbf{if}\;z \leq -1.08 \cdot 10^{-26}:\\ \;\;\;\;t\_0\\ \mathbf{elif}\;z \leq -2.05 \cdot 10^{-181}:\\ \;\;\;\;y \cdot 4\\ \mathbf{elif}\;z \leq 4.1 \cdot 10^{-144}:\\ \;\;\;\;x \cdot -3\\ \mathbf{elif}\;z \leq 9.2 \cdot 10^{-79}:\\ \;\;\;\;y \cdot 4\\ \mathbf{elif}\;z \leq 0.5:\\ \;\;\;\;x \cdot -3\\ \mathbf{else}:\\ \;\;\;\;t\_0\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (let* ((t_0 (* -6.0 (* (- y x) z))))
   (if (<= z -1.08e-26)
     t_0
     (if (<= z -2.05e-181)
       (* y 4.0)
       (if (<= z 4.1e-144)
         (* x -3.0)
         (if (<= z 9.2e-79) (* y 4.0) (if (<= z 0.5) (* x -3.0) t_0)))))))
double code(double x, double y, double z) {
	double t_0 = -6.0 * ((y - x) * z);
	double tmp;
	if (z <= -1.08e-26) {
		tmp = t_0;
	} else if (z <= -2.05e-181) {
		tmp = y * 4.0;
	} else if (z <= 4.1e-144) {
		tmp = x * -3.0;
	} else if (z <= 9.2e-79) {
		tmp = y * 4.0;
	} else if (z <= 0.5) {
		tmp = x * -3.0;
	} else {
		tmp = t_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 = (-6.0d0) * ((y - x) * z)
    if (z <= (-1.08d-26)) then
        tmp = t_0
    else if (z <= (-2.05d-181)) then
        tmp = y * 4.0d0
    else if (z <= 4.1d-144) then
        tmp = x * (-3.0d0)
    else if (z <= 9.2d-79) then
        tmp = y * 4.0d0
    else if (z <= 0.5d0) then
        tmp = x * (-3.0d0)
    else
        tmp = t_0
    end if
    code = tmp
end function
public static double code(double x, double y, double z) {
	double t_0 = -6.0 * ((y - x) * z);
	double tmp;
	if (z <= -1.08e-26) {
		tmp = t_0;
	} else if (z <= -2.05e-181) {
		tmp = y * 4.0;
	} else if (z <= 4.1e-144) {
		tmp = x * -3.0;
	} else if (z <= 9.2e-79) {
		tmp = y * 4.0;
	} else if (z <= 0.5) {
		tmp = x * -3.0;
	} else {
		tmp = t_0;
	}
	return tmp;
}
def code(x, y, z):
	t_0 = -6.0 * ((y - x) * z)
	tmp = 0
	if z <= -1.08e-26:
		tmp = t_0
	elif z <= -2.05e-181:
		tmp = y * 4.0
	elif z <= 4.1e-144:
		tmp = x * -3.0
	elif z <= 9.2e-79:
		tmp = y * 4.0
	elif z <= 0.5:
		tmp = x * -3.0
	else:
		tmp = t_0
	return tmp
function code(x, y, z)
	t_0 = Float64(-6.0 * Float64(Float64(y - x) * z))
	tmp = 0.0
	if (z <= -1.08e-26)
		tmp = t_0;
	elseif (z <= -2.05e-181)
		tmp = Float64(y * 4.0);
	elseif (z <= 4.1e-144)
		tmp = Float64(x * -3.0);
	elseif (z <= 9.2e-79)
		tmp = Float64(y * 4.0);
	elseif (z <= 0.5)
		tmp = Float64(x * -3.0);
	else
		tmp = t_0;
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	t_0 = -6.0 * ((y - x) * z);
	tmp = 0.0;
	if (z <= -1.08e-26)
		tmp = t_0;
	elseif (z <= -2.05e-181)
		tmp = y * 4.0;
	elseif (z <= 4.1e-144)
		tmp = x * -3.0;
	elseif (z <= 9.2e-79)
		tmp = y * 4.0;
	elseif (z <= 0.5)
		tmp = x * -3.0;
	else
		tmp = t_0;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := Block[{t$95$0 = N[(-6.0 * N[(N[(y - x), $MachinePrecision] * z), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[z, -1.08e-26], t$95$0, If[LessEqual[z, -2.05e-181], N[(y * 4.0), $MachinePrecision], If[LessEqual[z, 4.1e-144], N[(x * -3.0), $MachinePrecision], If[LessEqual[z, 9.2e-79], N[(y * 4.0), $MachinePrecision], If[LessEqual[z, 0.5], N[(x * -3.0), $MachinePrecision], t$95$0]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := -6 \cdot \left(\left(y - x\right) \cdot z\right)\\
\mathbf{if}\;z \leq -1.08 \cdot 10^{-26}:\\
\;\;\;\;t\_0\\

\mathbf{elif}\;z \leq -2.05 \cdot 10^{-181}:\\
\;\;\;\;y \cdot 4\\

\mathbf{elif}\;z \leq 4.1 \cdot 10^{-144}:\\
\;\;\;\;x \cdot -3\\

\mathbf{elif}\;z \leq 9.2 \cdot 10^{-79}:\\
\;\;\;\;y \cdot 4\\

\mathbf{elif}\;z \leq 0.5:\\
\;\;\;\;x \cdot -3\\

\mathbf{else}:\\
\;\;\;\;t\_0\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if z < -1.07999999999999996e-26 or 0.5 < z

    1. Initial program 99.7%

      \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
    2. Step-by-step derivation
      1. metadata-eval99.7%

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified99.7%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 99.8%

      \[\leadsto x + \color{blue}{\left(-6 \cdot \left(z \cdot \left(y - x\right)\right) + 4 \cdot \left(y - x\right)\right)} \]
    6. Taylor expanded in z around inf 94.8%

      \[\leadsto \color{blue}{-6 \cdot \left(z \cdot \left(y - x\right)\right)} \]

    if -1.07999999999999996e-26 < z < -2.0500000000000001e-181 or 4.1e-144 < z < 9.20000000000000047e-79

    1. Initial program 99.4%

      \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
    2. Step-by-step derivation
      1. metadata-eval99.4%

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified99.4%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in z around inf 70.9%

      \[\leadsto \color{blue}{z \cdot \left(-6 \cdot \left(y - x\right) + \left(4 \cdot \frac{y - x}{z} + \frac{x}{z}\right)\right)} \]
    6. Taylor expanded in y around inf 50.2%

      \[\leadsto z \cdot \left(-6 \cdot \left(y - x\right) + \color{blue}{4 \cdot \frac{y}{z}}\right) \]
    7. Taylor expanded in z around 0 73.6%

      \[\leadsto \color{blue}{4 \cdot y} \]
    8. Step-by-step derivation
      1. *-commutative73.6%

        \[\leadsto \color{blue}{y \cdot 4} \]
    9. Simplified73.6%

      \[\leadsto \color{blue}{y \cdot 4} \]

    if -2.0500000000000001e-181 < z < 4.1e-144 or 9.20000000000000047e-79 < z < 0.5

    1. Initial program 99.4%

      \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
    2. Step-by-step derivation
      1. metadata-eval99.4%

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified99.4%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 60.3%

      \[\leadsto \color{blue}{x \cdot \left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
    6. Step-by-step derivation
      1. +-commutative60.3%

        \[\leadsto x \cdot \color{blue}{\left(-6 \cdot \left(0.6666666666666666 - z\right) + 1\right)} \]
      2. +-commutative60.3%

        \[\leadsto x \cdot \color{blue}{\left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
      3. sub-neg60.3%

        \[\leadsto x \cdot \left(1 + -6 \cdot \color{blue}{\left(0.6666666666666666 + \left(-z\right)\right)}\right) \]
      4. distribute-rgt-in60.3%

        \[\leadsto x \cdot \left(1 + \color{blue}{\left(0.6666666666666666 \cdot -6 + \left(-z\right) \cdot -6\right)}\right) \]
      5. metadata-eval60.3%

        \[\leadsto x \cdot \left(1 + \left(\color{blue}{-4} + \left(-z\right) \cdot -6\right)\right) \]
      6. neg-mul-160.3%

        \[\leadsto x \cdot \left(1 + \left(-4 + \color{blue}{\left(-1 \cdot z\right)} \cdot -6\right)\right) \]
      7. associate-*r*60.3%

        \[\leadsto x \cdot \left(1 + \left(-4 + \color{blue}{-1 \cdot \left(z \cdot -6\right)}\right)\right) \]
      8. *-commutative60.3%

        \[\leadsto x \cdot \left(1 + \left(-4 + -1 \cdot \color{blue}{\left(-6 \cdot z\right)}\right)\right) \]
      9. associate-+r+60.3%

        \[\leadsto x \cdot \color{blue}{\left(\left(1 + -4\right) + -1 \cdot \left(-6 \cdot z\right)\right)} \]
      10. metadata-eval60.3%

        \[\leadsto x \cdot \left(\color{blue}{-3} + -1 \cdot \left(-6 \cdot z\right)\right) \]
      11. associate-*r*60.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{\left(-1 \cdot -6\right) \cdot z}\right) \]
      12. metadata-eval60.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{6} \cdot z\right) \]
      13. *-commutative60.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{z \cdot 6}\right) \]
    7. Simplified60.3%

      \[\leadsto \color{blue}{x \cdot \left(-3 + z \cdot 6\right)} \]
    8. Taylor expanded in z around 0 60.3%

      \[\leadsto \color{blue}{-3 \cdot x} \]
    9. Step-by-step derivation
      1. *-commutative60.3%

        \[\leadsto \color{blue}{x \cdot -3} \]
    10. Simplified60.3%

      \[\leadsto \color{blue}{x \cdot -3} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification80.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -1.08 \cdot 10^{-26}:\\ \;\;\;\;-6 \cdot \left(\left(y - x\right) \cdot z\right)\\ \mathbf{elif}\;z \leq -2.05 \cdot 10^{-181}:\\ \;\;\;\;y \cdot 4\\ \mathbf{elif}\;z \leq 4.1 \cdot 10^{-144}:\\ \;\;\;\;x \cdot -3\\ \mathbf{elif}\;z \leq 9.2 \cdot 10^{-79}:\\ \;\;\;\;y \cdot 4\\ \mathbf{elif}\;z \leq 0.5:\\ \;\;\;\;x \cdot -3\\ \mathbf{else}:\\ \;\;\;\;-6 \cdot \left(\left(y - x\right) \cdot z\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 7: 73.6% accurate, 0.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := x \cdot \left(-3 + z \cdot 6\right)\\ t_1 := -6 \cdot \left(\left(y - x\right) \cdot z\right)\\ \mathbf{if}\;z \leq -1.08 \cdot 10^{-26}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq -1.82 \cdot 10^{-181}:\\ \;\;\;\;y \cdot 4\\ \mathbf{elif}\;z \leq 1.06 \cdot 10^{-144}:\\ \;\;\;\;t\_0\\ \mathbf{elif}\;z \leq 1.45 \cdot 10^{-77}:\\ \;\;\;\;y \cdot 4\\ \mathbf{elif}\;z \leq 27000:\\ \;\;\;\;t\_0\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (let* ((t_0 (* x (+ -3.0 (* z 6.0)))) (t_1 (* -6.0 (* (- y x) z))))
   (if (<= z -1.08e-26)
     t_1
     (if (<= z -1.82e-181)
       (* y 4.0)
       (if (<= z 1.06e-144)
         t_0
         (if (<= z 1.45e-77) (* y 4.0) (if (<= z 27000.0) t_0 t_1)))))))
double code(double x, double y, double z) {
	double t_0 = x * (-3.0 + (z * 6.0));
	double t_1 = -6.0 * ((y - x) * z);
	double tmp;
	if (z <= -1.08e-26) {
		tmp = t_1;
	} else if (z <= -1.82e-181) {
		tmp = y * 4.0;
	} else if (z <= 1.06e-144) {
		tmp = t_0;
	} else if (z <= 1.45e-77) {
		tmp = y * 4.0;
	} else if (z <= 27000.0) {
		tmp = t_0;
	} else {
		tmp = t_1;
	}
	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) :: t_1
    real(8) :: tmp
    t_0 = x * ((-3.0d0) + (z * 6.0d0))
    t_1 = (-6.0d0) * ((y - x) * z)
    if (z <= (-1.08d-26)) then
        tmp = t_1
    else if (z <= (-1.82d-181)) then
        tmp = y * 4.0d0
    else if (z <= 1.06d-144) then
        tmp = t_0
    else if (z <= 1.45d-77) then
        tmp = y * 4.0d0
    else if (z <= 27000.0d0) then
        tmp = t_0
    else
        tmp = t_1
    end if
    code = tmp
end function
public static double code(double x, double y, double z) {
	double t_0 = x * (-3.0 + (z * 6.0));
	double t_1 = -6.0 * ((y - x) * z);
	double tmp;
	if (z <= -1.08e-26) {
		tmp = t_1;
	} else if (z <= -1.82e-181) {
		tmp = y * 4.0;
	} else if (z <= 1.06e-144) {
		tmp = t_0;
	} else if (z <= 1.45e-77) {
		tmp = y * 4.0;
	} else if (z <= 27000.0) {
		tmp = t_0;
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z):
	t_0 = x * (-3.0 + (z * 6.0))
	t_1 = -6.0 * ((y - x) * z)
	tmp = 0
	if z <= -1.08e-26:
		tmp = t_1
	elif z <= -1.82e-181:
		tmp = y * 4.0
	elif z <= 1.06e-144:
		tmp = t_0
	elif z <= 1.45e-77:
		tmp = y * 4.0
	elif z <= 27000.0:
		tmp = t_0
	else:
		tmp = t_1
	return tmp
function code(x, y, z)
	t_0 = Float64(x * Float64(-3.0 + Float64(z * 6.0)))
	t_1 = Float64(-6.0 * Float64(Float64(y - x) * z))
	tmp = 0.0
	if (z <= -1.08e-26)
		tmp = t_1;
	elseif (z <= -1.82e-181)
		tmp = Float64(y * 4.0);
	elseif (z <= 1.06e-144)
		tmp = t_0;
	elseif (z <= 1.45e-77)
		tmp = Float64(y * 4.0);
	elseif (z <= 27000.0)
		tmp = t_0;
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	t_0 = x * (-3.0 + (z * 6.0));
	t_1 = -6.0 * ((y - x) * z);
	tmp = 0.0;
	if (z <= -1.08e-26)
		tmp = t_1;
	elseif (z <= -1.82e-181)
		tmp = y * 4.0;
	elseif (z <= 1.06e-144)
		tmp = t_0;
	elseif (z <= 1.45e-77)
		tmp = y * 4.0;
	elseif (z <= 27000.0)
		tmp = t_0;
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := Block[{t$95$0 = N[(x * N[(-3.0 + N[(z * 6.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$1 = N[(-6.0 * N[(N[(y - x), $MachinePrecision] * z), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[z, -1.08e-26], t$95$1, If[LessEqual[z, -1.82e-181], N[(y * 4.0), $MachinePrecision], If[LessEqual[z, 1.06e-144], t$95$0, If[LessEqual[z, 1.45e-77], N[(y * 4.0), $MachinePrecision], If[LessEqual[z, 27000.0], t$95$0, t$95$1]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := x \cdot \left(-3 + z \cdot 6\right)\\
t_1 := -6 \cdot \left(\left(y - x\right) \cdot z\right)\\
\mathbf{if}\;z \leq -1.08 \cdot 10^{-26}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;z \leq -1.82 \cdot 10^{-181}:\\
\;\;\;\;y \cdot 4\\

\mathbf{elif}\;z \leq 1.06 \cdot 10^{-144}:\\
\;\;\;\;t\_0\\

\mathbf{elif}\;z \leq 1.45 \cdot 10^{-77}:\\
\;\;\;\;y \cdot 4\\

\mathbf{elif}\;z \leq 27000:\\
\;\;\;\;t\_0\\

\mathbf{else}:\\
\;\;\;\;t\_1\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if z < -1.07999999999999996e-26 or 27000 < z

    1. Initial program 99.7%

      \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
    2. Step-by-step derivation
      1. metadata-eval99.7%

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified99.7%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 99.8%

      \[\leadsto x + \color{blue}{\left(-6 \cdot \left(z \cdot \left(y - x\right)\right) + 4 \cdot \left(y - x\right)\right)} \]
    6. Taylor expanded in z around inf 95.8%

      \[\leadsto \color{blue}{-6 \cdot \left(z \cdot \left(y - x\right)\right)} \]

    if -1.07999999999999996e-26 < z < -1.8199999999999999e-181 or 1.06e-144 < z < 1.4499999999999999e-77

    1. Initial program 99.4%

      \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
    2. Step-by-step derivation
      1. metadata-eval99.4%

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified99.4%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in z around inf 70.9%

      \[\leadsto \color{blue}{z \cdot \left(-6 \cdot \left(y - x\right) + \left(4 \cdot \frac{y - x}{z} + \frac{x}{z}\right)\right)} \]
    6. Taylor expanded in y around inf 50.2%

      \[\leadsto z \cdot \left(-6 \cdot \left(y - x\right) + \color{blue}{4 \cdot \frac{y}{z}}\right) \]
    7. Taylor expanded in z around 0 73.6%

      \[\leadsto \color{blue}{4 \cdot y} \]
    8. Step-by-step derivation
      1. *-commutative73.6%

        \[\leadsto \color{blue}{y \cdot 4} \]
    9. Simplified73.6%

      \[\leadsto \color{blue}{y \cdot 4} \]

    if -1.8199999999999999e-181 < z < 1.06e-144 or 1.4499999999999999e-77 < z < 27000

    1. Initial program 99.4%

      \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
    2. Step-by-step derivation
      1. metadata-eval99.4%

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified99.4%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 60.1%

      \[\leadsto \color{blue}{x \cdot \left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
    6. Step-by-step derivation
      1. +-commutative60.1%

        \[\leadsto x \cdot \color{blue}{\left(-6 \cdot \left(0.6666666666666666 - z\right) + 1\right)} \]
      2. +-commutative60.1%

        \[\leadsto x \cdot \color{blue}{\left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
      3. sub-neg60.1%

        \[\leadsto x \cdot \left(1 + -6 \cdot \color{blue}{\left(0.6666666666666666 + \left(-z\right)\right)}\right) \]
      4. distribute-rgt-in60.1%

        \[\leadsto x \cdot \left(1 + \color{blue}{\left(0.6666666666666666 \cdot -6 + \left(-z\right) \cdot -6\right)}\right) \]
      5. metadata-eval60.1%

        \[\leadsto x \cdot \left(1 + \left(\color{blue}{-4} + \left(-z\right) \cdot -6\right)\right) \]
      6. neg-mul-160.1%

        \[\leadsto x \cdot \left(1 + \left(-4 + \color{blue}{\left(-1 \cdot z\right)} \cdot -6\right)\right) \]
      7. associate-*r*60.1%

        \[\leadsto x \cdot \left(1 + \left(-4 + \color{blue}{-1 \cdot \left(z \cdot -6\right)}\right)\right) \]
      8. *-commutative60.1%

        \[\leadsto x \cdot \left(1 + \left(-4 + -1 \cdot \color{blue}{\left(-6 \cdot z\right)}\right)\right) \]
      9. associate-+r+60.1%

        \[\leadsto x \cdot \color{blue}{\left(\left(1 + -4\right) + -1 \cdot \left(-6 \cdot z\right)\right)} \]
      10. metadata-eval60.1%

        \[\leadsto x \cdot \left(\color{blue}{-3} + -1 \cdot \left(-6 \cdot z\right)\right) \]
      11. associate-*r*60.1%

        \[\leadsto x \cdot \left(-3 + \color{blue}{\left(-1 \cdot -6\right) \cdot z}\right) \]
      12. metadata-eval60.1%

        \[\leadsto x \cdot \left(-3 + \color{blue}{6} \cdot z\right) \]
      13. *-commutative60.1%

        \[\leadsto x \cdot \left(-3 + \color{blue}{z \cdot 6}\right) \]
    7. Simplified60.1%

      \[\leadsto \color{blue}{x \cdot \left(-3 + z \cdot 6\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification80.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -1.08 \cdot 10^{-26}:\\ \;\;\;\;-6 \cdot \left(\left(y - x\right) \cdot z\right)\\ \mathbf{elif}\;z \leq -1.82 \cdot 10^{-181}:\\ \;\;\;\;y \cdot 4\\ \mathbf{elif}\;z \leq 1.06 \cdot 10^{-144}:\\ \;\;\;\;x \cdot \left(-3 + z \cdot 6\right)\\ \mathbf{elif}\;z \leq 1.45 \cdot 10^{-77}:\\ \;\;\;\;y \cdot 4\\ \mathbf{elif}\;z \leq 27000:\\ \;\;\;\;x \cdot \left(-3 + z \cdot 6\right)\\ \mathbf{else}:\\ \;\;\;\;-6 \cdot \left(\left(y - x\right) \cdot z\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 8: 51.1% accurate, 0.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := -6 \cdot \left(y \cdot z\right)\\ \mathbf{if}\;z \leq -1.08 \cdot 10^{-26}:\\ \;\;\;\;t\_0\\ \mathbf{elif}\;z \leq -2.6 \cdot 10^{-181}:\\ \;\;\;\;y \cdot 4\\ \mathbf{elif}\;z \leq 1.06 \cdot 10^{-144}:\\ \;\;\;\;x \cdot -3\\ \mathbf{elif}\;z \leq 5 \cdot 10^{-79}:\\ \;\;\;\;y \cdot 4\\ \mathbf{elif}\;z \leq 0.5:\\ \;\;\;\;x \cdot -3\\ \mathbf{else}:\\ \;\;\;\;t\_0\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (let* ((t_0 (* -6.0 (* y z))))
   (if (<= z -1.08e-26)
     t_0
     (if (<= z -2.6e-181)
       (* y 4.0)
       (if (<= z 1.06e-144)
         (* x -3.0)
         (if (<= z 5e-79) (* y 4.0) (if (<= z 0.5) (* x -3.0) t_0)))))))
double code(double x, double y, double z) {
	double t_0 = -6.0 * (y * z);
	double tmp;
	if (z <= -1.08e-26) {
		tmp = t_0;
	} else if (z <= -2.6e-181) {
		tmp = y * 4.0;
	} else if (z <= 1.06e-144) {
		tmp = x * -3.0;
	} else if (z <= 5e-79) {
		tmp = y * 4.0;
	} else if (z <= 0.5) {
		tmp = x * -3.0;
	} else {
		tmp = t_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 = (-6.0d0) * (y * z)
    if (z <= (-1.08d-26)) then
        tmp = t_0
    else if (z <= (-2.6d-181)) then
        tmp = y * 4.0d0
    else if (z <= 1.06d-144) then
        tmp = x * (-3.0d0)
    else if (z <= 5d-79) then
        tmp = y * 4.0d0
    else if (z <= 0.5d0) then
        tmp = x * (-3.0d0)
    else
        tmp = t_0
    end if
    code = tmp
end function
public static double code(double x, double y, double z) {
	double t_0 = -6.0 * (y * z);
	double tmp;
	if (z <= -1.08e-26) {
		tmp = t_0;
	} else if (z <= -2.6e-181) {
		tmp = y * 4.0;
	} else if (z <= 1.06e-144) {
		tmp = x * -3.0;
	} else if (z <= 5e-79) {
		tmp = y * 4.0;
	} else if (z <= 0.5) {
		tmp = x * -3.0;
	} else {
		tmp = t_0;
	}
	return tmp;
}
def code(x, y, z):
	t_0 = -6.0 * (y * z)
	tmp = 0
	if z <= -1.08e-26:
		tmp = t_0
	elif z <= -2.6e-181:
		tmp = y * 4.0
	elif z <= 1.06e-144:
		tmp = x * -3.0
	elif z <= 5e-79:
		tmp = y * 4.0
	elif z <= 0.5:
		tmp = x * -3.0
	else:
		tmp = t_0
	return tmp
function code(x, y, z)
	t_0 = Float64(-6.0 * Float64(y * z))
	tmp = 0.0
	if (z <= -1.08e-26)
		tmp = t_0;
	elseif (z <= -2.6e-181)
		tmp = Float64(y * 4.0);
	elseif (z <= 1.06e-144)
		tmp = Float64(x * -3.0);
	elseif (z <= 5e-79)
		tmp = Float64(y * 4.0);
	elseif (z <= 0.5)
		tmp = Float64(x * -3.0);
	else
		tmp = t_0;
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	t_0 = -6.0 * (y * z);
	tmp = 0.0;
	if (z <= -1.08e-26)
		tmp = t_0;
	elseif (z <= -2.6e-181)
		tmp = y * 4.0;
	elseif (z <= 1.06e-144)
		tmp = x * -3.0;
	elseif (z <= 5e-79)
		tmp = y * 4.0;
	elseif (z <= 0.5)
		tmp = x * -3.0;
	else
		tmp = t_0;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := Block[{t$95$0 = N[(-6.0 * N[(y * z), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[z, -1.08e-26], t$95$0, If[LessEqual[z, -2.6e-181], N[(y * 4.0), $MachinePrecision], If[LessEqual[z, 1.06e-144], N[(x * -3.0), $MachinePrecision], If[LessEqual[z, 5e-79], N[(y * 4.0), $MachinePrecision], If[LessEqual[z, 0.5], N[(x * -3.0), $MachinePrecision], t$95$0]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := -6 \cdot \left(y \cdot z\right)\\
\mathbf{if}\;z \leq -1.08 \cdot 10^{-26}:\\
\;\;\;\;t\_0\\

\mathbf{elif}\;z \leq -2.6 \cdot 10^{-181}:\\
\;\;\;\;y \cdot 4\\

\mathbf{elif}\;z \leq 1.06 \cdot 10^{-144}:\\
\;\;\;\;x \cdot -3\\

\mathbf{elif}\;z \leq 5 \cdot 10^{-79}:\\
\;\;\;\;y \cdot 4\\

\mathbf{elif}\;z \leq 0.5:\\
\;\;\;\;x \cdot -3\\

\mathbf{else}:\\
\;\;\;\;t\_0\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if z < -1.07999999999999996e-26 or 0.5 < z

    1. Initial program 99.7%

      \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
    2. Step-by-step derivation
      1. metadata-eval99.7%

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified99.7%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 99.8%

      \[\leadsto x + \color{blue}{\left(-6 \cdot \left(z \cdot \left(y - x\right)\right) + 4 \cdot \left(y - x\right)\right)} \]
    6. Taylor expanded in z around inf 94.8%

      \[\leadsto \color{blue}{-6 \cdot \left(z \cdot \left(y - x\right)\right)} \]
    7. Taylor expanded in y around inf 58.0%

      \[\leadsto \color{blue}{-6 \cdot \left(y \cdot z\right)} \]
    8. Step-by-step derivation
      1. *-commutative58.0%

        \[\leadsto -6 \cdot \color{blue}{\left(z \cdot y\right)} \]
    9. Simplified58.0%

      \[\leadsto \color{blue}{-6 \cdot \left(z \cdot y\right)} \]

    if -1.07999999999999996e-26 < z < -2.59999999999999999e-181 or 1.06e-144 < z < 4.99999999999999999e-79

    1. Initial program 99.4%

      \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
    2. Step-by-step derivation
      1. metadata-eval99.4%

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified99.4%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in z around inf 70.9%

      \[\leadsto \color{blue}{z \cdot \left(-6 \cdot \left(y - x\right) + \left(4 \cdot \frac{y - x}{z} + \frac{x}{z}\right)\right)} \]
    6. Taylor expanded in y around inf 50.2%

      \[\leadsto z \cdot \left(-6 \cdot \left(y - x\right) + \color{blue}{4 \cdot \frac{y}{z}}\right) \]
    7. Taylor expanded in z around 0 73.6%

      \[\leadsto \color{blue}{4 \cdot y} \]
    8. Step-by-step derivation
      1. *-commutative73.6%

        \[\leadsto \color{blue}{y \cdot 4} \]
    9. Simplified73.6%

      \[\leadsto \color{blue}{y \cdot 4} \]

    if -2.59999999999999999e-181 < z < 1.06e-144 or 4.99999999999999999e-79 < z < 0.5

    1. Initial program 99.4%

      \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
    2. Step-by-step derivation
      1. metadata-eval99.4%

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified99.4%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 60.3%

      \[\leadsto \color{blue}{x \cdot \left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
    6. Step-by-step derivation
      1. +-commutative60.3%

        \[\leadsto x \cdot \color{blue}{\left(-6 \cdot \left(0.6666666666666666 - z\right) + 1\right)} \]
      2. +-commutative60.3%

        \[\leadsto x \cdot \color{blue}{\left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
      3. sub-neg60.3%

        \[\leadsto x \cdot \left(1 + -6 \cdot \color{blue}{\left(0.6666666666666666 + \left(-z\right)\right)}\right) \]
      4. distribute-rgt-in60.3%

        \[\leadsto x \cdot \left(1 + \color{blue}{\left(0.6666666666666666 \cdot -6 + \left(-z\right) \cdot -6\right)}\right) \]
      5. metadata-eval60.3%

        \[\leadsto x \cdot \left(1 + \left(\color{blue}{-4} + \left(-z\right) \cdot -6\right)\right) \]
      6. neg-mul-160.3%

        \[\leadsto x \cdot \left(1 + \left(-4 + \color{blue}{\left(-1 \cdot z\right)} \cdot -6\right)\right) \]
      7. associate-*r*60.3%

        \[\leadsto x \cdot \left(1 + \left(-4 + \color{blue}{-1 \cdot \left(z \cdot -6\right)}\right)\right) \]
      8. *-commutative60.3%

        \[\leadsto x \cdot \left(1 + \left(-4 + -1 \cdot \color{blue}{\left(-6 \cdot z\right)}\right)\right) \]
      9. associate-+r+60.3%

        \[\leadsto x \cdot \color{blue}{\left(\left(1 + -4\right) + -1 \cdot \left(-6 \cdot z\right)\right)} \]
      10. metadata-eval60.3%

        \[\leadsto x \cdot \left(\color{blue}{-3} + -1 \cdot \left(-6 \cdot z\right)\right) \]
      11. associate-*r*60.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{\left(-1 \cdot -6\right) \cdot z}\right) \]
      12. metadata-eval60.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{6} \cdot z\right) \]
      13. *-commutative60.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{z \cdot 6}\right) \]
    7. Simplified60.3%

      \[\leadsto \color{blue}{x \cdot \left(-3 + z \cdot 6\right)} \]
    8. Taylor expanded in z around 0 60.3%

      \[\leadsto \color{blue}{-3 \cdot x} \]
    9. Step-by-step derivation
      1. *-commutative60.3%

        \[\leadsto \color{blue}{x \cdot -3} \]
    10. Simplified60.3%

      \[\leadsto \color{blue}{x \cdot -3} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification61.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -1.08 \cdot 10^{-26}:\\ \;\;\;\;-6 \cdot \left(y \cdot z\right)\\ \mathbf{elif}\;z \leq -2.6 \cdot 10^{-181}:\\ \;\;\;\;y \cdot 4\\ \mathbf{elif}\;z \leq 1.06 \cdot 10^{-144}:\\ \;\;\;\;x \cdot -3\\ \mathbf{elif}\;z \leq 5 \cdot 10^{-79}:\\ \;\;\;\;y \cdot 4\\ \mathbf{elif}\;z \leq 0.5:\\ \;\;\;\;x \cdot -3\\ \mathbf{else}:\\ \;\;\;\;-6 \cdot \left(y \cdot z\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 9: 76.2% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -36000000000 \lor \neg \left(x \leq 1.45 \cdot 10^{+41}\right):\\ \;\;\;\;x \cdot \left(-3 + z \cdot 6\right)\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(4 + z \cdot -6\right)\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (if (or (<= x -36000000000.0) (not (<= x 1.45e+41)))
   (* x (+ -3.0 (* z 6.0)))
   (* y (+ 4.0 (* z -6.0)))))
double code(double x, double y, double z) {
	double tmp;
	if ((x <= -36000000000.0) || !(x <= 1.45e+41)) {
		tmp = x * (-3.0 + (z * 6.0));
	} else {
		tmp = y * (4.0 + (z * -6.0));
	}
	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 ((x <= (-36000000000.0d0)) .or. (.not. (x <= 1.45d+41))) then
        tmp = x * ((-3.0d0) + (z * 6.0d0))
    else
        tmp = y * (4.0d0 + (z * (-6.0d0)))
    end if
    code = tmp
end function
public static double code(double x, double y, double z) {
	double tmp;
	if ((x <= -36000000000.0) || !(x <= 1.45e+41)) {
		tmp = x * (-3.0 + (z * 6.0));
	} else {
		tmp = y * (4.0 + (z * -6.0));
	}
	return tmp;
}
def code(x, y, z):
	tmp = 0
	if (x <= -36000000000.0) or not (x <= 1.45e+41):
		tmp = x * (-3.0 + (z * 6.0))
	else:
		tmp = y * (4.0 + (z * -6.0))
	return tmp
function code(x, y, z)
	tmp = 0.0
	if ((x <= -36000000000.0) || !(x <= 1.45e+41))
		tmp = Float64(x * Float64(-3.0 + Float64(z * 6.0)));
	else
		tmp = Float64(y * Float64(4.0 + Float64(z * -6.0)));
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	tmp = 0.0;
	if ((x <= -36000000000.0) || ~((x <= 1.45e+41)))
		tmp = x * (-3.0 + (z * 6.0));
	else
		tmp = y * (4.0 + (z * -6.0));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := If[Or[LessEqual[x, -36000000000.0], N[Not[LessEqual[x, 1.45e+41]], $MachinePrecision]], N[(x * N[(-3.0 + N[(z * 6.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(y * N[(4.0 + N[(z * -6.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq -36000000000 \lor \neg \left(x \leq 1.45 \cdot 10^{+41}\right):\\
\;\;\;\;x \cdot \left(-3 + z \cdot 6\right)\\

\mathbf{else}:\\
\;\;\;\;y \cdot \left(4 + z \cdot -6\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < -3.6e10 or 1.44999999999999994e41 < x

    1. Initial program 99.6%

      \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
    2. Step-by-step derivation
      1. metadata-eval99.6%

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified99.6%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 80.6%

      \[\leadsto \color{blue}{x \cdot \left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
    6. Step-by-step derivation
      1. +-commutative80.6%

        \[\leadsto x \cdot \color{blue}{\left(-6 \cdot \left(0.6666666666666666 - z\right) + 1\right)} \]
      2. +-commutative80.6%

        \[\leadsto x \cdot \color{blue}{\left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
      3. sub-neg80.6%

        \[\leadsto x \cdot \left(1 + -6 \cdot \color{blue}{\left(0.6666666666666666 + \left(-z\right)\right)}\right) \]
      4. distribute-rgt-in80.6%

        \[\leadsto x \cdot \left(1 + \color{blue}{\left(0.6666666666666666 \cdot -6 + \left(-z\right) \cdot -6\right)}\right) \]
      5. metadata-eval80.6%

        \[\leadsto x \cdot \left(1 + \left(\color{blue}{-4} + \left(-z\right) \cdot -6\right)\right) \]
      6. neg-mul-180.6%

        \[\leadsto x \cdot \left(1 + \left(-4 + \color{blue}{\left(-1 \cdot z\right)} \cdot -6\right)\right) \]
      7. associate-*r*80.6%

        \[\leadsto x \cdot \left(1 + \left(-4 + \color{blue}{-1 \cdot \left(z \cdot -6\right)}\right)\right) \]
      8. *-commutative80.6%

        \[\leadsto x \cdot \left(1 + \left(-4 + -1 \cdot \color{blue}{\left(-6 \cdot z\right)}\right)\right) \]
      9. associate-+r+80.6%

        \[\leadsto x \cdot \color{blue}{\left(\left(1 + -4\right) + -1 \cdot \left(-6 \cdot z\right)\right)} \]
      10. metadata-eval80.6%

        \[\leadsto x \cdot \left(\color{blue}{-3} + -1 \cdot \left(-6 \cdot z\right)\right) \]
      11. associate-*r*80.6%

        \[\leadsto x \cdot \left(-3 + \color{blue}{\left(-1 \cdot -6\right) \cdot z}\right) \]
      12. metadata-eval80.6%

        \[\leadsto x \cdot \left(-3 + \color{blue}{6} \cdot z\right) \]
      13. *-commutative80.6%

        \[\leadsto x \cdot \left(-3 + \color{blue}{z \cdot 6}\right) \]
    7. Simplified80.6%

      \[\leadsto \color{blue}{x \cdot \left(-3 + z \cdot 6\right)} \]

    if -3.6e10 < x < 1.44999999999999994e41

    1. Initial program 99.6%

      \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
    2. Step-by-step derivation
      1. +-commutative99.6%

        \[\leadsto \color{blue}{\left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) + x} \]
      2. associate-*l*99.8%

        \[\leadsto \color{blue}{\left(y - x\right) \cdot \left(6 \cdot \left(\frac{2}{3} - z\right)\right)} + x \]
      3. fma-define99.8%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y - x, 6 \cdot \left(\frac{2}{3} - z\right), x\right)} \]
      4. sub-neg99.8%

        \[\leadsto \mathsf{fma}\left(y - x, 6 \cdot \color{blue}{\left(\frac{2}{3} + \left(-z\right)\right)}, x\right) \]
      5. distribute-rgt-in99.8%

        \[\leadsto \mathsf{fma}\left(y - x, \color{blue}{\frac{2}{3} \cdot 6 + \left(-z\right) \cdot 6}, x\right) \]
      6. metadata-eval99.8%

        \[\leadsto \mathsf{fma}\left(y - x, \color{blue}{0.6666666666666666} \cdot 6 + \left(-z\right) \cdot 6, x\right) \]
      7. metadata-eval99.8%

        \[\leadsto \mathsf{fma}\left(y - x, \color{blue}{4} + \left(-z\right) \cdot 6, x\right) \]
      8. distribute-lft-neg-out99.8%

        \[\leadsto \mathsf{fma}\left(y - x, 4 + \color{blue}{\left(-z \cdot 6\right)}, x\right) \]
      9. distribute-rgt-neg-in99.8%

        \[\leadsto \mathsf{fma}\left(y - x, 4 + \color{blue}{z \cdot \left(-6\right)}, x\right) \]
      10. metadata-eval99.8%

        \[\leadsto \mathsf{fma}\left(y - x, 4 + z \cdot \color{blue}{-6}, x\right) \]
    3. Simplified99.8%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y - x, 4 + z \cdot -6, x\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 75.5%

      \[\leadsto \color{blue}{y \cdot \left(4 + -6 \cdot z\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification77.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -36000000000 \lor \neg \left(x \leq 1.45 \cdot 10^{+41}\right):\\ \;\;\;\;x \cdot \left(-3 + z \cdot 6\right)\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(4 + z \cdot -6\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 10: 97.7% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -0.6:\\ \;\;\;\;-6 \cdot \left(\left(y - x\right) \cdot z\right)\\ \mathbf{elif}\;z \leq 0.64:\\ \;\;\;\;x + \left(y - x\right) \cdot 4\\ \mathbf{else}:\\ \;\;\;\;z \cdot \left(\left(y - x\right) \cdot -6\right)\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (if (<= z -0.6)
   (* -6.0 (* (- y x) z))
   (if (<= z 0.64) (+ x (* (- y x) 4.0)) (* z (* (- y x) -6.0)))))
double code(double x, double y, double z) {
	double tmp;
	if (z <= -0.6) {
		tmp = -6.0 * ((y - x) * z);
	} else if (z <= 0.64) {
		tmp = x + ((y - x) * 4.0);
	} else {
		tmp = z * ((y - x) * -6.0);
	}
	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 (z <= (-0.6d0)) then
        tmp = (-6.0d0) * ((y - x) * z)
    else if (z <= 0.64d0) then
        tmp = x + ((y - x) * 4.0d0)
    else
        tmp = z * ((y - x) * (-6.0d0))
    end if
    code = tmp
end function
public static double code(double x, double y, double z) {
	double tmp;
	if (z <= -0.6) {
		tmp = -6.0 * ((y - x) * z);
	} else if (z <= 0.64) {
		tmp = x + ((y - x) * 4.0);
	} else {
		tmp = z * ((y - x) * -6.0);
	}
	return tmp;
}
def code(x, y, z):
	tmp = 0
	if z <= -0.6:
		tmp = -6.0 * ((y - x) * z)
	elif z <= 0.64:
		tmp = x + ((y - x) * 4.0)
	else:
		tmp = z * ((y - x) * -6.0)
	return tmp
function code(x, y, z)
	tmp = 0.0
	if (z <= -0.6)
		tmp = Float64(-6.0 * Float64(Float64(y - x) * z));
	elseif (z <= 0.64)
		tmp = Float64(x + Float64(Float64(y - x) * 4.0));
	else
		tmp = Float64(z * Float64(Float64(y - x) * -6.0));
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	tmp = 0.0;
	if (z <= -0.6)
		tmp = -6.0 * ((y - x) * z);
	elseif (z <= 0.64)
		tmp = x + ((y - x) * 4.0);
	else
		tmp = z * ((y - x) * -6.0);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := If[LessEqual[z, -0.6], N[(-6.0 * N[(N[(y - x), $MachinePrecision] * z), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, 0.64], N[(x + N[(N[(y - x), $MachinePrecision] * 4.0), $MachinePrecision]), $MachinePrecision], N[(z * N[(N[(y - x), $MachinePrecision] * -6.0), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -0.6:\\
\;\;\;\;-6 \cdot \left(\left(y - x\right) \cdot z\right)\\

\mathbf{elif}\;z \leq 0.64:\\
\;\;\;\;x + \left(y - x\right) \cdot 4\\

\mathbf{else}:\\
\;\;\;\;z \cdot \left(\left(y - x\right) \cdot -6\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if z < -0.599999999999999978

    1. Initial program 99.7%

      \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
    2. Step-by-step derivation
      1. metadata-eval99.7%

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified99.7%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 99.7%

      \[\leadsto x + \color{blue}{\left(-6 \cdot \left(z \cdot \left(y - x\right)\right) + 4 \cdot \left(y - x\right)\right)} \]
    6. Taylor expanded in z around inf 95.8%

      \[\leadsto \color{blue}{-6 \cdot \left(z \cdot \left(y - x\right)\right)} \]

    if -0.599999999999999978 < z < 0.640000000000000013

    1. Initial program 99.4%

      \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
    2. Step-by-step derivation
      1. metadata-eval99.4%

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified99.4%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 98.8%

      \[\leadsto x + \color{blue}{4 \cdot \left(y - x\right)} \]

    if 0.640000000000000013 < z

    1. Initial program 99.8%

      \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
    2. Step-by-step derivation
      1. metadata-eval99.8%

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified99.8%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 99.8%

      \[\leadsto x + \color{blue}{\left(-6 \cdot \left(z \cdot \left(y - x\right)\right) + 4 \cdot \left(y - x\right)\right)} \]
    6. Taylor expanded in z around inf 96.6%

      \[\leadsto \color{blue}{-6 \cdot \left(z \cdot \left(y - x\right)\right)} \]
    7. Step-by-step derivation
      1. *-commutative96.6%

        \[\leadsto -6 \cdot \color{blue}{\left(\left(y - x\right) \cdot z\right)} \]
      2. associate-*l*96.6%

        \[\leadsto \color{blue}{\left(-6 \cdot \left(y - x\right)\right) \cdot z} \]
      3. *-commutative96.6%

        \[\leadsto \color{blue}{z \cdot \left(-6 \cdot \left(y - x\right)\right)} \]
    8. Simplified96.6%

      \[\leadsto \color{blue}{z \cdot \left(-6 \cdot \left(y - x\right)\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification97.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -0.6:\\ \;\;\;\;-6 \cdot \left(\left(y - x\right) \cdot z\right)\\ \mathbf{elif}\;z \leq 0.64:\\ \;\;\;\;x + \left(y - x\right) \cdot 4\\ \mathbf{else}:\\ \;\;\;\;z \cdot \left(\left(y - x\right) \cdot -6\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 11: 99.7% accurate, 0.9× speedup?

\[\begin{array}{l} \\ x + \left(-6 \cdot \left(\left(y - x\right) \cdot z\right) + \left(y - x\right) \cdot 4\right) \end{array} \]
(FPCore (x y z)
 :precision binary64
 (+ x (+ (* -6.0 (* (- y x) z)) (* (- y x) 4.0))))
double code(double x, double y, double z) {
	return x + ((-6.0 * ((y - x) * z)) + ((y - x) * 4.0));
}
real(8) function code(x, y, z)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    code = x + (((-6.0d0) * ((y - x) * z)) + ((y - x) * 4.0d0))
end function
public static double code(double x, double y, double z) {
	return x + ((-6.0 * ((y - x) * z)) + ((y - x) * 4.0));
}
def code(x, y, z):
	return x + ((-6.0 * ((y - x) * z)) + ((y - x) * 4.0))
function code(x, y, z)
	return Float64(x + Float64(Float64(-6.0 * Float64(Float64(y - x) * z)) + Float64(Float64(y - x) * 4.0)))
end
function tmp = code(x, y, z)
	tmp = x + ((-6.0 * ((y - x) * z)) + ((y - x) * 4.0));
end
code[x_, y_, z_] := N[(x + N[(N[(-6.0 * N[(N[(y - x), $MachinePrecision] * z), $MachinePrecision]), $MachinePrecision] + N[(N[(y - x), $MachinePrecision] * 4.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
x + \left(-6 \cdot \left(\left(y - x\right) \cdot z\right) + \left(y - x\right) \cdot 4\right)
\end{array}
Derivation
  1. Initial program 99.6%

    \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
  2. Step-by-step derivation
    1. metadata-eval99.6%

      \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
  3. Simplified99.6%

    \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
  4. Add Preprocessing
  5. Taylor expanded in z around 0 99.8%

    \[\leadsto x + \color{blue}{\left(-6 \cdot \left(z \cdot \left(y - x\right)\right) + 4 \cdot \left(y - x\right)\right)} \]
  6. Final simplification99.8%

    \[\leadsto x + \left(-6 \cdot \left(\left(y - x\right) \cdot z\right) + \left(y - x\right) \cdot 4\right) \]
  7. Add Preprocessing

Alternative 12: 38.4% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -1.8 \cdot 10^{-72} \lor \neg \left(x \leq 4.5 \cdot 10^{+41}\right):\\ \;\;\;\;x \cdot -3\\ \mathbf{else}:\\ \;\;\;\;y \cdot 4\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (if (or (<= x -1.8e-72) (not (<= x 4.5e+41))) (* x -3.0) (* y 4.0)))
double code(double x, double y, double z) {
	double tmp;
	if ((x <= -1.8e-72) || !(x <= 4.5e+41)) {
		tmp = x * -3.0;
	} else {
		tmp = y * 4.0;
	}
	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 ((x <= (-1.8d-72)) .or. (.not. (x <= 4.5d+41))) then
        tmp = x * (-3.0d0)
    else
        tmp = y * 4.0d0
    end if
    code = tmp
end function
public static double code(double x, double y, double z) {
	double tmp;
	if ((x <= -1.8e-72) || !(x <= 4.5e+41)) {
		tmp = x * -3.0;
	} else {
		tmp = y * 4.0;
	}
	return tmp;
}
def code(x, y, z):
	tmp = 0
	if (x <= -1.8e-72) or not (x <= 4.5e+41):
		tmp = x * -3.0
	else:
		tmp = y * 4.0
	return tmp
function code(x, y, z)
	tmp = 0.0
	if ((x <= -1.8e-72) || !(x <= 4.5e+41))
		tmp = Float64(x * -3.0);
	else
		tmp = Float64(y * 4.0);
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	tmp = 0.0;
	if ((x <= -1.8e-72) || ~((x <= 4.5e+41)))
		tmp = x * -3.0;
	else
		tmp = y * 4.0;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := If[Or[LessEqual[x, -1.8e-72], N[Not[LessEqual[x, 4.5e+41]], $MachinePrecision]], N[(x * -3.0), $MachinePrecision], N[(y * 4.0), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq -1.8 \cdot 10^{-72} \lor \neg \left(x \leq 4.5 \cdot 10^{+41}\right):\\
\;\;\;\;x \cdot -3\\

\mathbf{else}:\\
\;\;\;\;y \cdot 4\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < -1.8e-72 or 4.5000000000000001e41 < x

    1. Initial program 99.6%

      \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
    2. Step-by-step derivation
      1. metadata-eval99.6%

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified99.6%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 77.0%

      \[\leadsto \color{blue}{x \cdot \left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
    6. Step-by-step derivation
      1. +-commutative77.0%

        \[\leadsto x \cdot \color{blue}{\left(-6 \cdot \left(0.6666666666666666 - z\right) + 1\right)} \]
      2. +-commutative77.0%

        \[\leadsto x \cdot \color{blue}{\left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
      3. sub-neg77.0%

        \[\leadsto x \cdot \left(1 + -6 \cdot \color{blue}{\left(0.6666666666666666 + \left(-z\right)\right)}\right) \]
      4. distribute-rgt-in77.0%

        \[\leadsto x \cdot \left(1 + \color{blue}{\left(0.6666666666666666 \cdot -6 + \left(-z\right) \cdot -6\right)}\right) \]
      5. metadata-eval77.0%

        \[\leadsto x \cdot \left(1 + \left(\color{blue}{-4} + \left(-z\right) \cdot -6\right)\right) \]
      6. neg-mul-177.0%

        \[\leadsto x \cdot \left(1 + \left(-4 + \color{blue}{\left(-1 \cdot z\right)} \cdot -6\right)\right) \]
      7. associate-*r*77.0%

        \[\leadsto x \cdot \left(1 + \left(-4 + \color{blue}{-1 \cdot \left(z \cdot -6\right)}\right)\right) \]
      8. *-commutative77.0%

        \[\leadsto x \cdot \left(1 + \left(-4 + -1 \cdot \color{blue}{\left(-6 \cdot z\right)}\right)\right) \]
      9. associate-+r+77.0%

        \[\leadsto x \cdot \color{blue}{\left(\left(1 + -4\right) + -1 \cdot \left(-6 \cdot z\right)\right)} \]
      10. metadata-eval77.0%

        \[\leadsto x \cdot \left(\color{blue}{-3} + -1 \cdot \left(-6 \cdot z\right)\right) \]
      11. associate-*r*77.0%

        \[\leadsto x \cdot \left(-3 + \color{blue}{\left(-1 \cdot -6\right) \cdot z}\right) \]
      12. metadata-eval77.0%

        \[\leadsto x \cdot \left(-3 + \color{blue}{6} \cdot z\right) \]
      13. *-commutative77.0%

        \[\leadsto x \cdot \left(-3 + \color{blue}{z \cdot 6}\right) \]
    7. Simplified77.0%

      \[\leadsto \color{blue}{x \cdot \left(-3 + z \cdot 6\right)} \]
    8. Taylor expanded in z around 0 46.0%

      \[\leadsto \color{blue}{-3 \cdot x} \]
    9. Step-by-step derivation
      1. *-commutative46.0%

        \[\leadsto \color{blue}{x \cdot -3} \]
    10. Simplified46.0%

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

    if -1.8e-72 < x < 4.5000000000000001e41

    1. Initial program 99.5%

      \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
    2. Step-by-step derivation
      1. metadata-eval99.5%

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified99.5%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in z around inf 89.5%

      \[\leadsto \color{blue}{z \cdot \left(-6 \cdot \left(y - x\right) + \left(4 \cdot \frac{y - x}{z} + \frac{x}{z}\right)\right)} \]
    6. Taylor expanded in y around inf 78.7%

      \[\leadsto z \cdot \left(-6 \cdot \left(y - x\right) + \color{blue}{4 \cdot \frac{y}{z}}\right) \]
    7. Taylor expanded in z around 0 35.0%

      \[\leadsto \color{blue}{4 \cdot y} \]
    8. Step-by-step derivation
      1. *-commutative35.0%

        \[\leadsto \color{blue}{y \cdot 4} \]
    9. Simplified35.0%

      \[\leadsto \color{blue}{y \cdot 4} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification39.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -1.8 \cdot 10^{-72} \lor \neg \left(x \leq 4.5 \cdot 10^{+41}\right):\\ \;\;\;\;x \cdot -3\\ \mathbf{else}:\\ \;\;\;\;y \cdot 4\\ \end{array} \]
  5. Add Preprocessing

Alternative 13: 99.5% accurate, 1.2× speedup?

\[\begin{array}{l} \\ x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right) \end{array} \]
(FPCore (x y z)
 :precision binary64
 (+ x (* (* (- y x) 6.0) (- 0.6666666666666666 z))))
double code(double x, double y, double z) {
	return x + (((y - x) * 6.0) * (0.6666666666666666 - z));
}
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 - x) * 6.0d0) * (0.6666666666666666d0 - z))
end function
public static double code(double x, double y, double z) {
	return x + (((y - x) * 6.0) * (0.6666666666666666 - z));
}
def code(x, y, z):
	return x + (((y - x) * 6.0) * (0.6666666666666666 - z))
function code(x, y, z)
	return Float64(x + Float64(Float64(Float64(y - x) * 6.0) * Float64(0.6666666666666666 - z)))
end
function tmp = code(x, y, z)
	tmp = x + (((y - x) * 6.0) * (0.6666666666666666 - z));
end
code[x_, y_, z_] := N[(x + N[(N[(N[(y - x), $MachinePrecision] * 6.0), $MachinePrecision] * N[(0.6666666666666666 - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)
\end{array}
Derivation
  1. Initial program 99.6%

    \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
  2. Step-by-step derivation
    1. metadata-eval99.6%

      \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
  3. Simplified99.6%

    \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
  4. Add Preprocessing
  5. Final simplification99.6%

    \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right) \]
  6. Add Preprocessing

Alternative 14: 26.5% accurate, 4.3× speedup?

\[\begin{array}{l} \\ x \cdot -3 \end{array} \]
(FPCore (x y z) :precision binary64 (* x -3.0))
double code(double x, double y, double z) {
	return x * -3.0;
}
real(8) function code(x, y, z)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    code = x * (-3.0d0)
end function
public static double code(double x, double y, double z) {
	return x * -3.0;
}
def code(x, y, z):
	return x * -3.0
function code(x, y, z)
	return Float64(x * -3.0)
end
function tmp = code(x, y, z)
	tmp = x * -3.0;
end
code[x_, y_, z_] := N[(x * -3.0), $MachinePrecision]
\begin{array}{l}

\\
x \cdot -3
\end{array}
Derivation
  1. Initial program 99.6%

    \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
  2. Step-by-step derivation
    1. metadata-eval99.6%

      \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
  3. Simplified99.6%

    \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
  4. Add Preprocessing
  5. Taylor expanded in x around inf 46.3%

    \[\leadsto \color{blue}{x \cdot \left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
  6. Step-by-step derivation
    1. +-commutative46.3%

      \[\leadsto x \cdot \color{blue}{\left(-6 \cdot \left(0.6666666666666666 - z\right) + 1\right)} \]
    2. +-commutative46.3%

      \[\leadsto x \cdot \color{blue}{\left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
    3. sub-neg46.3%

      \[\leadsto x \cdot \left(1 + -6 \cdot \color{blue}{\left(0.6666666666666666 + \left(-z\right)\right)}\right) \]
    4. distribute-rgt-in46.3%

      \[\leadsto x \cdot \left(1 + \color{blue}{\left(0.6666666666666666 \cdot -6 + \left(-z\right) \cdot -6\right)}\right) \]
    5. metadata-eval46.3%

      \[\leadsto x \cdot \left(1 + \left(\color{blue}{-4} + \left(-z\right) \cdot -6\right)\right) \]
    6. neg-mul-146.3%

      \[\leadsto x \cdot \left(1 + \left(-4 + \color{blue}{\left(-1 \cdot z\right)} \cdot -6\right)\right) \]
    7. associate-*r*46.3%

      \[\leadsto x \cdot \left(1 + \left(-4 + \color{blue}{-1 \cdot \left(z \cdot -6\right)}\right)\right) \]
    8. *-commutative46.3%

      \[\leadsto x \cdot \left(1 + \left(-4 + -1 \cdot \color{blue}{\left(-6 \cdot z\right)}\right)\right) \]
    9. associate-+r+46.3%

      \[\leadsto x \cdot \color{blue}{\left(\left(1 + -4\right) + -1 \cdot \left(-6 \cdot z\right)\right)} \]
    10. metadata-eval46.3%

      \[\leadsto x \cdot \left(\color{blue}{-3} + -1 \cdot \left(-6 \cdot z\right)\right) \]
    11. associate-*r*46.3%

      \[\leadsto x \cdot \left(-3 + \color{blue}{\left(-1 \cdot -6\right) \cdot z}\right) \]
    12. metadata-eval46.3%

      \[\leadsto x \cdot \left(-3 + \color{blue}{6} \cdot z\right) \]
    13. *-commutative46.3%

      \[\leadsto x \cdot \left(-3 + \color{blue}{z \cdot 6}\right) \]
  7. Simplified46.3%

    \[\leadsto \color{blue}{x \cdot \left(-3 + z \cdot 6\right)} \]
  8. Taylor expanded in z around 0 26.4%

    \[\leadsto \color{blue}{-3 \cdot x} \]
  9. Step-by-step derivation
    1. *-commutative26.4%

      \[\leadsto \color{blue}{x \cdot -3} \]
  10. Simplified26.4%

    \[\leadsto \color{blue}{x \cdot -3} \]
  11. Final simplification26.4%

    \[\leadsto x \cdot -3 \]
  12. Add Preprocessing

Alternative 15: 2.6% accurate, 13.0× speedup?

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

\\
x
\end{array}
Derivation
  1. Initial program 99.6%

    \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
  2. Step-by-step derivation
    1. metadata-eval99.6%

      \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
  3. Simplified99.6%

    \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
  4. Add Preprocessing
  5. Taylor expanded in z around inf 50.1%

    \[\leadsto x + \color{blue}{-6 \cdot \left(z \cdot \left(y - x\right)\right)} \]
  6. Taylor expanded in z around 0 2.5%

    \[\leadsto \color{blue}{x} \]
  7. Final simplification2.5%

    \[\leadsto x \]
  8. Add Preprocessing

Reproduce

?
herbie shell --seed 2024130 
(FPCore (x y z)
  :name "Data.Colour.RGBSpace.HSL:hsl from colour-2.3.3, D"
  :precision binary64
  (+ x (* (* (- y x) 6.0) (- (/ 2.0 3.0) z))))