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

Percentage Accurate: 99.5% → 99.8%
Time: 15.5s
Alternatives: 16
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 16 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 99.5%

    \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
  2. Step-by-step derivation
    1. +-commutative99.5%

      \[\leadsto \color{blue}{\left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) + x} \]
    2. associate-*l*99.7%

      \[\leadsto \color{blue}{\left(y - x\right) \cdot \left(6 \cdot \left(\frac{2}{3} - z\right)\right)} + x \]
    3. fma-define99.7%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y - x, 6 \cdot \left(\frac{2}{3} - z\right), x\right)} \]
    4. sub-neg99.7%

      \[\leadsto \mathsf{fma}\left(y - x, 6 \cdot \color{blue}{\left(\frac{2}{3} + \left(-z\right)\right)}, x\right) \]
    5. distribute-rgt-in99.7%

      \[\leadsto \mathsf{fma}\left(y - x, \color{blue}{\frac{2}{3} \cdot 6 + \left(-z\right) \cdot 6}, x\right) \]
    6. metadata-eval99.7%

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

      \[\leadsto \mathsf{fma}\left(y - x, \color{blue}{4} + \left(-z\right) \cdot 6, x\right) \]
    8. distribute-lft-neg-out99.7%

      \[\leadsto \mathsf{fma}\left(y - x, 4 + \color{blue}{\left(-z \cdot 6\right)}, x\right) \]
    9. distribute-rgt-neg-in99.7%

      \[\leadsto \mathsf{fma}\left(y - x, 4 + \color{blue}{z \cdot \left(-6\right)}, x\right) \]
    10. metadata-eval99.7%

      \[\leadsto \mathsf{fma}\left(y - x, 4 + z \cdot \color{blue}{-6}, x\right) \]
  3. Simplified99.7%

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

Alternative 2: 99.7% accurate, 0.1× speedup?

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

\\
\mathsf{fma}\left(y - x, 6 \cdot \left(0.6666666666666666 - z\right), x\right)
\end{array}
Derivation
  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. +-commutative99.5%

      \[\leadsto \color{blue}{\left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) + x} \]
    2. associate-*l*99.7%

      \[\leadsto \color{blue}{\left(y - x\right) \cdot \left(6 \cdot \left(\frac{2}{3} - z\right)\right)} + x \]
    3. fma-define99.7%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y - x, 6 \cdot \left(\frac{2}{3} - z\right), x\right)} \]
    4. metadata-eval99.7%

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

    \[\leadsto \color{blue}{\mathsf{fma}\left(y - x, 6 \cdot \left(0.6666666666666666 - z\right), x\right)} \]
  4. Add Preprocessing
  5. Add Preprocessing

Alternative 3: 50.6% accurate, 0.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := z \cdot \left(y \cdot -6\right)\\ \mathbf{if}\;z \leq -4.8 \cdot 10^{+158}:\\ \;\;\;\;-6 \cdot \left(y \cdot z\right)\\ \mathbf{elif}\;z \leq -2.7 \cdot 10^{+34}:\\ \;\;\;\;6 \cdot \left(x \cdot z\right)\\ \mathbf{elif}\;z \leq -17:\\ \;\;\;\;t\_0\\ \mathbf{elif}\;z \leq -4.9 \cdot 10^{-186}:\\ \;\;\;\;x \cdot -3\\ \mathbf{elif}\;z \leq 7.5 \cdot 10^{-215}:\\ \;\;\;\;y \cdot 4\\ \mathbf{elif}\;z \leq 0.5:\\ \;\;\;\;x \cdot -3\\ \mathbf{elif}\;z \leq 2.55 \cdot 10^{+118}:\\ \;\;\;\;x \cdot \left(z \cdot 6\right)\\ \mathbf{else}:\\ \;\;\;\;t\_0\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (let* ((t_0 (* z (* y -6.0))))
   (if (<= z -4.8e+158)
     (* -6.0 (* y z))
     (if (<= z -2.7e+34)
       (* 6.0 (* x z))
       (if (<= z -17.0)
         t_0
         (if (<= z -4.9e-186)
           (* x -3.0)
           (if (<= z 7.5e-215)
             (* y 4.0)
             (if (<= z 0.5)
               (* x -3.0)
               (if (<= z 2.55e+118) (* x (* z 6.0)) t_0)))))))))
double code(double x, double y, double z) {
	double t_0 = z * (y * -6.0);
	double tmp;
	if (z <= -4.8e+158) {
		tmp = -6.0 * (y * z);
	} else if (z <= -2.7e+34) {
		tmp = 6.0 * (x * z);
	} else if (z <= -17.0) {
		tmp = t_0;
	} else if (z <= -4.9e-186) {
		tmp = x * -3.0;
	} else if (z <= 7.5e-215) {
		tmp = y * 4.0;
	} else if (z <= 0.5) {
		tmp = x * -3.0;
	} else if (z <= 2.55e+118) {
		tmp = x * (z * 6.0);
	} 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 = z * (y * (-6.0d0))
    if (z <= (-4.8d+158)) then
        tmp = (-6.0d0) * (y * z)
    else if (z <= (-2.7d+34)) then
        tmp = 6.0d0 * (x * z)
    else if (z <= (-17.0d0)) then
        tmp = t_0
    else if (z <= (-4.9d-186)) then
        tmp = x * (-3.0d0)
    else if (z <= 7.5d-215) then
        tmp = y * 4.0d0
    else if (z <= 0.5d0) then
        tmp = x * (-3.0d0)
    else if (z <= 2.55d+118) then
        tmp = x * (z * 6.0d0)
    else
        tmp = t_0
    end if
    code = tmp
end function
public static double code(double x, double y, double z) {
	double t_0 = z * (y * -6.0);
	double tmp;
	if (z <= -4.8e+158) {
		tmp = -6.0 * (y * z);
	} else if (z <= -2.7e+34) {
		tmp = 6.0 * (x * z);
	} else if (z <= -17.0) {
		tmp = t_0;
	} else if (z <= -4.9e-186) {
		tmp = x * -3.0;
	} else if (z <= 7.5e-215) {
		tmp = y * 4.0;
	} else if (z <= 0.5) {
		tmp = x * -3.0;
	} else if (z <= 2.55e+118) {
		tmp = x * (z * 6.0);
	} else {
		tmp = t_0;
	}
	return tmp;
}
def code(x, y, z):
	t_0 = z * (y * -6.0)
	tmp = 0
	if z <= -4.8e+158:
		tmp = -6.0 * (y * z)
	elif z <= -2.7e+34:
		tmp = 6.0 * (x * z)
	elif z <= -17.0:
		tmp = t_0
	elif z <= -4.9e-186:
		tmp = x * -3.0
	elif z <= 7.5e-215:
		tmp = y * 4.0
	elif z <= 0.5:
		tmp = x * -3.0
	elif z <= 2.55e+118:
		tmp = x * (z * 6.0)
	else:
		tmp = t_0
	return tmp
function code(x, y, z)
	t_0 = Float64(z * Float64(y * -6.0))
	tmp = 0.0
	if (z <= -4.8e+158)
		tmp = Float64(-6.0 * Float64(y * z));
	elseif (z <= -2.7e+34)
		tmp = Float64(6.0 * Float64(x * z));
	elseif (z <= -17.0)
		tmp = t_0;
	elseif (z <= -4.9e-186)
		tmp = Float64(x * -3.0);
	elseif (z <= 7.5e-215)
		tmp = Float64(y * 4.0);
	elseif (z <= 0.5)
		tmp = Float64(x * -3.0);
	elseif (z <= 2.55e+118)
		tmp = Float64(x * Float64(z * 6.0));
	else
		tmp = t_0;
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	t_0 = z * (y * -6.0);
	tmp = 0.0;
	if (z <= -4.8e+158)
		tmp = -6.0 * (y * z);
	elseif (z <= -2.7e+34)
		tmp = 6.0 * (x * z);
	elseif (z <= -17.0)
		tmp = t_0;
	elseif (z <= -4.9e-186)
		tmp = x * -3.0;
	elseif (z <= 7.5e-215)
		tmp = y * 4.0;
	elseif (z <= 0.5)
		tmp = x * -3.0;
	elseif (z <= 2.55e+118)
		tmp = x * (z * 6.0);
	else
		tmp = t_0;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := Block[{t$95$0 = N[(z * N[(y * -6.0), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[z, -4.8e+158], N[(-6.0 * N[(y * z), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, -2.7e+34], N[(6.0 * N[(x * z), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, -17.0], t$95$0, If[LessEqual[z, -4.9e-186], N[(x * -3.0), $MachinePrecision], If[LessEqual[z, 7.5e-215], N[(y * 4.0), $MachinePrecision], If[LessEqual[z, 0.5], N[(x * -3.0), $MachinePrecision], If[LessEqual[z, 2.55e+118], N[(x * N[(z * 6.0), $MachinePrecision]), $MachinePrecision], t$95$0]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := z \cdot \left(y \cdot -6\right)\\
\mathbf{if}\;z \leq -4.8 \cdot 10^{+158}:\\
\;\;\;\;-6 \cdot \left(y \cdot z\right)\\

\mathbf{elif}\;z \leq -2.7 \cdot 10^{+34}:\\
\;\;\;\;6 \cdot \left(x \cdot z\right)\\

\mathbf{elif}\;z \leq -17:\\
\;\;\;\;t\_0\\

\mathbf{elif}\;z \leq -4.9 \cdot 10^{-186}:\\
\;\;\;\;x \cdot -3\\

\mathbf{elif}\;z \leq 7.5 \cdot 10^{-215}:\\
\;\;\;\;y \cdot 4\\

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

\mathbf{elif}\;z \leq 2.55 \cdot 10^{+118}:\\
\;\;\;\;x \cdot \left(z \cdot 6\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 6 regimes
  2. if z < -4.80000000000000016e158

    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 y around inf 63.3%

      \[\leadsto x + \color{blue}{6 \cdot \left(y \cdot \left(0.6666666666666666 - z\right)\right)} \]
    6. Taylor expanded in z around inf 63.3%

      \[\leadsto x + \color{blue}{-6 \cdot \left(y \cdot z\right)} \]
    7. Taylor expanded in x around 0 63.4%

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

    if -4.80000000000000016e158 < z < -2.7e34

    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 x around inf 75.2%

      \[\leadsto \color{blue}{x \cdot \left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
    6. Step-by-step derivation
      1. +-commutative75.2%

        \[\leadsto x \cdot \color{blue}{\left(-6 \cdot \left(0.6666666666666666 - z\right) + 1\right)} \]
      2. sub-neg75.2%

        \[\leadsto x \cdot \left(-6 \cdot \color{blue}{\left(0.6666666666666666 + \left(-z\right)\right)} + 1\right) \]
      3. distribute-rgt-in75.2%

        \[\leadsto x \cdot \left(\color{blue}{\left(0.6666666666666666 \cdot -6 + \left(-z\right) \cdot -6\right)} + 1\right) \]
      4. metadata-eval75.2%

        \[\leadsto x \cdot \left(\left(\color{blue}{-4} + \left(-z\right) \cdot -6\right) + 1\right) \]
      5. neg-mul-175.2%

        \[\leadsto x \cdot \left(\left(-4 + \color{blue}{\left(-1 \cdot z\right)} \cdot -6\right) + 1\right) \]
      6. associate-*r*75.2%

        \[\leadsto x \cdot \left(\left(-4 + \color{blue}{-1 \cdot \left(z \cdot -6\right)}\right) + 1\right) \]
      7. *-commutative75.2%

        \[\leadsto x \cdot \left(\left(-4 + -1 \cdot \color{blue}{\left(-6 \cdot z\right)}\right) + 1\right) \]
      8. metadata-eval75.2%

        \[\leadsto x \cdot \left(\left(\color{blue}{-1 \cdot 4} + -1 \cdot \left(-6 \cdot z\right)\right) + 1\right) \]
      9. distribute-lft-in75.2%

        \[\leadsto x \cdot \left(\color{blue}{-1 \cdot \left(4 + -6 \cdot z\right)} + 1\right) \]
      10. +-commutative75.2%

        \[\leadsto x \cdot \color{blue}{\left(1 + -1 \cdot \left(4 + -6 \cdot z\right)\right)} \]
      11. distribute-lft-in75.2%

        \[\leadsto x \cdot \left(1 + \color{blue}{\left(-1 \cdot 4 + -1 \cdot \left(-6 \cdot z\right)\right)}\right) \]
      12. metadata-eval75.2%

        \[\leadsto x \cdot \left(1 + \left(\color{blue}{-4} + -1 \cdot \left(-6 \cdot z\right)\right)\right) \]
      13. associate-+r+75.2%

        \[\leadsto x \cdot \color{blue}{\left(\left(1 + -4\right) + -1 \cdot \left(-6 \cdot z\right)\right)} \]
      14. metadata-eval75.2%

        \[\leadsto x \cdot \left(\color{blue}{-3} + -1 \cdot \left(-6 \cdot z\right)\right) \]
      15. associate-*r*75.2%

        \[\leadsto x \cdot \left(-3 + \color{blue}{\left(-1 \cdot -6\right) \cdot z}\right) \]
      16. metadata-eval75.2%

        \[\leadsto x \cdot \left(-3 + \color{blue}{6} \cdot z\right) \]
      17. *-commutative75.2%

        \[\leadsto x \cdot \left(-3 + \color{blue}{z \cdot 6}\right) \]
    7. Simplified75.2%

      \[\leadsto \color{blue}{x \cdot \left(-3 + z \cdot 6\right)} \]
    8. Taylor expanded in z around inf 75.3%

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

    if -2.7e34 < z < -17 or 2.55000000000000001e118 < 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 y around inf 83.7%

      \[\leadsto \color{blue}{y \cdot \left(-6 \cdot \frac{x \cdot \left(0.6666666666666666 - z\right)}{y} + \left(6 \cdot \left(0.6666666666666666 - z\right) + \frac{x}{y}\right)\right)} \]
    6. Taylor expanded in x around 0 67.4%

      \[\leadsto y \cdot \color{blue}{\left(6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
    7. Taylor expanded in z around inf 65.7%

      \[\leadsto \color{blue}{-6 \cdot \left(y \cdot z\right)} \]
    8. Step-by-step derivation
      1. associate-*r*65.7%

        \[\leadsto \color{blue}{\left(-6 \cdot y\right) \cdot z} \]
    9. Simplified65.7%

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

    if -17 < z < -4.8999999999999996e-186 or 7.49999999999999986e-215 < 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 63.2%

      \[\leadsto \color{blue}{x \cdot \left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
    6. Step-by-step derivation
      1. +-commutative63.2%

        \[\leadsto x \cdot \color{blue}{\left(-6 \cdot \left(0.6666666666666666 - z\right) + 1\right)} \]
      2. sub-neg63.2%

        \[\leadsto x \cdot \left(-6 \cdot \color{blue}{\left(0.6666666666666666 + \left(-z\right)\right)} + 1\right) \]
      3. distribute-rgt-in63.3%

        \[\leadsto x \cdot \left(\color{blue}{\left(0.6666666666666666 \cdot -6 + \left(-z\right) \cdot -6\right)} + 1\right) \]
      4. metadata-eval63.3%

        \[\leadsto x \cdot \left(\left(\color{blue}{-4} + \left(-z\right) \cdot -6\right) + 1\right) \]
      5. neg-mul-163.3%

        \[\leadsto x \cdot \left(\left(-4 + \color{blue}{\left(-1 \cdot z\right)} \cdot -6\right) + 1\right) \]
      6. associate-*r*63.3%

        \[\leadsto x \cdot \left(\left(-4 + \color{blue}{-1 \cdot \left(z \cdot -6\right)}\right) + 1\right) \]
      7. *-commutative63.3%

        \[\leadsto x \cdot \left(\left(-4 + -1 \cdot \color{blue}{\left(-6 \cdot z\right)}\right) + 1\right) \]
      8. metadata-eval63.3%

        \[\leadsto x \cdot \left(\left(\color{blue}{-1 \cdot 4} + -1 \cdot \left(-6 \cdot z\right)\right) + 1\right) \]
      9. distribute-lft-in63.3%

        \[\leadsto x \cdot \left(\color{blue}{-1 \cdot \left(4 + -6 \cdot z\right)} + 1\right) \]
      10. +-commutative63.3%

        \[\leadsto x \cdot \color{blue}{\left(1 + -1 \cdot \left(4 + -6 \cdot z\right)\right)} \]
      11. distribute-lft-in63.3%

        \[\leadsto x \cdot \left(1 + \color{blue}{\left(-1 \cdot 4 + -1 \cdot \left(-6 \cdot z\right)\right)}\right) \]
      12. metadata-eval63.3%

        \[\leadsto x \cdot \left(1 + \left(\color{blue}{-4} + -1 \cdot \left(-6 \cdot z\right)\right)\right) \]
      13. associate-+r+63.3%

        \[\leadsto x \cdot \color{blue}{\left(\left(1 + -4\right) + -1 \cdot \left(-6 \cdot z\right)\right)} \]
      14. metadata-eval63.3%

        \[\leadsto x \cdot \left(\color{blue}{-3} + -1 \cdot \left(-6 \cdot z\right)\right) \]
      15. associate-*r*63.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{\left(-1 \cdot -6\right) \cdot z}\right) \]
      16. metadata-eval63.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{6} \cdot z\right) \]
      17. *-commutative63.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{z \cdot 6}\right) \]
    7. Simplified63.3%

      \[\leadsto \color{blue}{x \cdot \left(-3 + z \cdot 6\right)} \]
    8. Taylor expanded in z around 0 59.4%

      \[\leadsto \color{blue}{-3 \cdot x} \]
    9. Step-by-step derivation
      1. *-commutative59.4%

        \[\leadsto \color{blue}{x \cdot -3} \]
    10. Simplified59.4%

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

    if -4.8999999999999996e-186 < z < 7.49999999999999986e-215

    1. Initial program 99.2%

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

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified99.2%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 90.5%

      \[\leadsto \color{blue}{y \cdot \left(-6 \cdot \frac{x \cdot \left(0.6666666666666666 - z\right)}{y} + \left(6 \cdot \left(0.6666666666666666 - z\right) + \frac{x}{y}\right)\right)} \]
    6. Taylor expanded in x around 0 66.5%

      \[\leadsto y \cdot \color{blue}{\left(6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
    7. Taylor expanded in z around 0 66.5%

      \[\leadsto \color{blue}{4 \cdot y} \]
    8. Step-by-step derivation
      1. *-commutative66.5%

        \[\leadsto \color{blue}{y \cdot 4} \]
    9. Simplified66.5%

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

    if 0.5 < z < 2.55000000000000001e118

    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 63.5%

      \[\leadsto \color{blue}{x \cdot \left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
    6. Step-by-step derivation
      1. +-commutative63.5%

        \[\leadsto x \cdot \color{blue}{\left(-6 \cdot \left(0.6666666666666666 - z\right) + 1\right)} \]
      2. sub-neg63.5%

        \[\leadsto x \cdot \left(-6 \cdot \color{blue}{\left(0.6666666666666666 + \left(-z\right)\right)} + 1\right) \]
      3. distribute-rgt-in63.4%

        \[\leadsto x \cdot \left(\color{blue}{\left(0.6666666666666666 \cdot -6 + \left(-z\right) \cdot -6\right)} + 1\right) \]
      4. metadata-eval63.4%

        \[\leadsto x \cdot \left(\left(\color{blue}{-4} + \left(-z\right) \cdot -6\right) + 1\right) \]
      5. neg-mul-163.4%

        \[\leadsto x \cdot \left(\left(-4 + \color{blue}{\left(-1 \cdot z\right)} \cdot -6\right) + 1\right) \]
      6. associate-*r*63.4%

        \[\leadsto x \cdot \left(\left(-4 + \color{blue}{-1 \cdot \left(z \cdot -6\right)}\right) + 1\right) \]
      7. *-commutative63.4%

        \[\leadsto x \cdot \left(\left(-4 + -1 \cdot \color{blue}{\left(-6 \cdot z\right)}\right) + 1\right) \]
      8. metadata-eval63.4%

        \[\leadsto x \cdot \left(\left(\color{blue}{-1 \cdot 4} + -1 \cdot \left(-6 \cdot z\right)\right) + 1\right) \]
      9. distribute-lft-in63.4%

        \[\leadsto x \cdot \left(\color{blue}{-1 \cdot \left(4 + -6 \cdot z\right)} + 1\right) \]
      10. +-commutative63.4%

        \[\leadsto x \cdot \color{blue}{\left(1 + -1 \cdot \left(4 + -6 \cdot z\right)\right)} \]
      11. distribute-lft-in63.4%

        \[\leadsto x \cdot \left(1 + \color{blue}{\left(-1 \cdot 4 + -1 \cdot \left(-6 \cdot z\right)\right)}\right) \]
      12. metadata-eval63.4%

        \[\leadsto x \cdot \left(1 + \left(\color{blue}{-4} + -1 \cdot \left(-6 \cdot z\right)\right)\right) \]
      13. associate-+r+63.4%

        \[\leadsto x \cdot \color{blue}{\left(\left(1 + -4\right) + -1 \cdot \left(-6 \cdot z\right)\right)} \]
      14. metadata-eval63.4%

        \[\leadsto x \cdot \left(\color{blue}{-3} + -1 \cdot \left(-6 \cdot z\right)\right) \]
      15. associate-*r*63.4%

        \[\leadsto x \cdot \left(-3 + \color{blue}{\left(-1 \cdot -6\right) \cdot z}\right) \]
      16. metadata-eval63.4%

        \[\leadsto x \cdot \left(-3 + \color{blue}{6} \cdot z\right) \]
      17. *-commutative63.4%

        \[\leadsto x \cdot \left(-3 + \color{blue}{z \cdot 6}\right) \]
    7. Simplified63.4%

      \[\leadsto \color{blue}{x \cdot \left(-3 + z \cdot 6\right)} \]
    8. Taylor expanded in z around inf 57.2%

      \[\leadsto \color{blue}{6 \cdot \left(x \cdot z\right)} \]
    9. Step-by-step derivation
      1. associate-*r*57.1%

        \[\leadsto \color{blue}{\left(6 \cdot x\right) \cdot z} \]
      2. *-commutative57.1%

        \[\leadsto \color{blue}{\left(x \cdot 6\right)} \cdot z \]
      3. associate-*r*57.2%

        \[\leadsto \color{blue}{x \cdot \left(6 \cdot z\right)} \]
    10. Simplified57.2%

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

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -4.8 \cdot 10^{+158}:\\ \;\;\;\;-6 \cdot \left(y \cdot z\right)\\ \mathbf{elif}\;z \leq -2.7 \cdot 10^{+34}:\\ \;\;\;\;6 \cdot \left(x \cdot z\right)\\ \mathbf{elif}\;z \leq -17:\\ \;\;\;\;z \cdot \left(y \cdot -6\right)\\ \mathbf{elif}\;z \leq -4.9 \cdot 10^{-186}:\\ \;\;\;\;x \cdot -3\\ \mathbf{elif}\;z \leq 7.5 \cdot 10^{-215}:\\ \;\;\;\;y \cdot 4\\ \mathbf{elif}\;z \leq 0.5:\\ \;\;\;\;x \cdot -3\\ \mathbf{elif}\;z \leq 2.55 \cdot 10^{+118}:\\ \;\;\;\;x \cdot \left(z \cdot 6\right)\\ \mathbf{else}:\\ \;\;\;\;z \cdot \left(y \cdot -6\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 4: 50.6% accurate, 0.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := -6 \cdot \left(y \cdot z\right)\\ \mathbf{if}\;z \leq -3.5 \cdot 10^{+160}:\\ \;\;\;\;t\_0\\ \mathbf{elif}\;z \leq -2.05 \cdot 10^{+34}:\\ \;\;\;\;6 \cdot \left(x \cdot z\right)\\ \mathbf{elif}\;z \leq -18:\\ \;\;\;\;y \cdot \left(z \cdot -6\right)\\ \mathbf{elif}\;z \leq -1.55 \cdot 10^{-186}:\\ \;\;\;\;x \cdot -3\\ \mathbf{elif}\;z \leq 1.35 \cdot 10^{-214}:\\ \;\;\;\;y \cdot 4\\ \mathbf{elif}\;z \leq 0.5:\\ \;\;\;\;x \cdot -3\\ \mathbf{elif}\;z \leq 2.7 \cdot 10^{+118}:\\ \;\;\;\;x \cdot \left(z \cdot 6\right)\\ \mathbf{else}:\\ \;\;\;\;t\_0\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (let* ((t_0 (* -6.0 (* y z))))
   (if (<= z -3.5e+160)
     t_0
     (if (<= z -2.05e+34)
       (* 6.0 (* x z))
       (if (<= z -18.0)
         (* y (* z -6.0))
         (if (<= z -1.55e-186)
           (* x -3.0)
           (if (<= z 1.35e-214)
             (* y 4.0)
             (if (<= z 0.5)
               (* x -3.0)
               (if (<= z 2.7e+118) (* x (* z 6.0)) t_0)))))))))
double code(double x, double y, double z) {
	double t_0 = -6.0 * (y * z);
	double tmp;
	if (z <= -3.5e+160) {
		tmp = t_0;
	} else if (z <= -2.05e+34) {
		tmp = 6.0 * (x * z);
	} else if (z <= -18.0) {
		tmp = y * (z * -6.0);
	} else if (z <= -1.55e-186) {
		tmp = x * -3.0;
	} else if (z <= 1.35e-214) {
		tmp = y * 4.0;
	} else if (z <= 0.5) {
		tmp = x * -3.0;
	} else if (z <= 2.7e+118) {
		tmp = x * (z * 6.0);
	} 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 <= (-3.5d+160)) then
        tmp = t_0
    else if (z <= (-2.05d+34)) then
        tmp = 6.0d0 * (x * z)
    else if (z <= (-18.0d0)) then
        tmp = y * (z * (-6.0d0))
    else if (z <= (-1.55d-186)) then
        tmp = x * (-3.0d0)
    else if (z <= 1.35d-214) then
        tmp = y * 4.0d0
    else if (z <= 0.5d0) then
        tmp = x * (-3.0d0)
    else if (z <= 2.7d+118) then
        tmp = x * (z * 6.0d0)
    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 <= -3.5e+160) {
		tmp = t_0;
	} else if (z <= -2.05e+34) {
		tmp = 6.0 * (x * z);
	} else if (z <= -18.0) {
		tmp = y * (z * -6.0);
	} else if (z <= -1.55e-186) {
		tmp = x * -3.0;
	} else if (z <= 1.35e-214) {
		tmp = y * 4.0;
	} else if (z <= 0.5) {
		tmp = x * -3.0;
	} else if (z <= 2.7e+118) {
		tmp = x * (z * 6.0);
	} else {
		tmp = t_0;
	}
	return tmp;
}
def code(x, y, z):
	t_0 = -6.0 * (y * z)
	tmp = 0
	if z <= -3.5e+160:
		tmp = t_0
	elif z <= -2.05e+34:
		tmp = 6.0 * (x * z)
	elif z <= -18.0:
		tmp = y * (z * -6.0)
	elif z <= -1.55e-186:
		tmp = x * -3.0
	elif z <= 1.35e-214:
		tmp = y * 4.0
	elif z <= 0.5:
		tmp = x * -3.0
	elif z <= 2.7e+118:
		tmp = x * (z * 6.0)
	else:
		tmp = t_0
	return tmp
function code(x, y, z)
	t_0 = Float64(-6.0 * Float64(y * z))
	tmp = 0.0
	if (z <= -3.5e+160)
		tmp = t_0;
	elseif (z <= -2.05e+34)
		tmp = Float64(6.0 * Float64(x * z));
	elseif (z <= -18.0)
		tmp = Float64(y * Float64(z * -6.0));
	elseif (z <= -1.55e-186)
		tmp = Float64(x * -3.0);
	elseif (z <= 1.35e-214)
		tmp = Float64(y * 4.0);
	elseif (z <= 0.5)
		tmp = Float64(x * -3.0);
	elseif (z <= 2.7e+118)
		tmp = Float64(x * Float64(z * 6.0));
	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 <= -3.5e+160)
		tmp = t_0;
	elseif (z <= -2.05e+34)
		tmp = 6.0 * (x * z);
	elseif (z <= -18.0)
		tmp = y * (z * -6.0);
	elseif (z <= -1.55e-186)
		tmp = x * -3.0;
	elseif (z <= 1.35e-214)
		tmp = y * 4.0;
	elseif (z <= 0.5)
		tmp = x * -3.0;
	elseif (z <= 2.7e+118)
		tmp = x * (z * 6.0);
	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, -3.5e+160], t$95$0, If[LessEqual[z, -2.05e+34], N[(6.0 * N[(x * z), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, -18.0], N[(y * N[(z * -6.0), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, -1.55e-186], N[(x * -3.0), $MachinePrecision], If[LessEqual[z, 1.35e-214], N[(y * 4.0), $MachinePrecision], If[LessEqual[z, 0.5], N[(x * -3.0), $MachinePrecision], If[LessEqual[z, 2.7e+118], N[(x * N[(z * 6.0), $MachinePrecision]), $MachinePrecision], t$95$0]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := -6 \cdot \left(y \cdot z\right)\\
\mathbf{if}\;z \leq -3.5 \cdot 10^{+160}:\\
\;\;\;\;t\_0\\

\mathbf{elif}\;z \leq -2.05 \cdot 10^{+34}:\\
\;\;\;\;6 \cdot \left(x \cdot z\right)\\

\mathbf{elif}\;z \leq -18:\\
\;\;\;\;y \cdot \left(z \cdot -6\right)\\

\mathbf{elif}\;z \leq -1.55 \cdot 10^{-186}:\\
\;\;\;\;x \cdot -3\\

\mathbf{elif}\;z \leq 1.35 \cdot 10^{-214}:\\
\;\;\;\;y \cdot 4\\

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

\mathbf{elif}\;z \leq 2.7 \cdot 10^{+118}:\\
\;\;\;\;x \cdot \left(z \cdot 6\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 6 regimes
  2. if z < -3.50000000000000026e160 or 2.7e118 < z

    1. Initial program 99.9%

      \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
    2. Step-by-step derivation
      1. metadata-eval99.9%

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified99.9%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 64.2%

      \[\leadsto x + \color{blue}{6 \cdot \left(y \cdot \left(0.6666666666666666 - z\right)\right)} \]
    6. Taylor expanded in z around inf 64.2%

      \[\leadsto x + \color{blue}{-6 \cdot \left(y \cdot z\right)} \]
    7. Taylor expanded in x around 0 63.9%

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

    if -3.50000000000000026e160 < z < -2.0499999999999999e34

    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 x around inf 75.2%

      \[\leadsto \color{blue}{x \cdot \left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
    6. Step-by-step derivation
      1. +-commutative75.2%

        \[\leadsto x \cdot \color{blue}{\left(-6 \cdot \left(0.6666666666666666 - z\right) + 1\right)} \]
      2. sub-neg75.2%

        \[\leadsto x \cdot \left(-6 \cdot \color{blue}{\left(0.6666666666666666 + \left(-z\right)\right)} + 1\right) \]
      3. distribute-rgt-in75.2%

        \[\leadsto x \cdot \left(\color{blue}{\left(0.6666666666666666 \cdot -6 + \left(-z\right) \cdot -6\right)} + 1\right) \]
      4. metadata-eval75.2%

        \[\leadsto x \cdot \left(\left(\color{blue}{-4} + \left(-z\right) \cdot -6\right) + 1\right) \]
      5. neg-mul-175.2%

        \[\leadsto x \cdot \left(\left(-4 + \color{blue}{\left(-1 \cdot z\right)} \cdot -6\right) + 1\right) \]
      6. associate-*r*75.2%

        \[\leadsto x \cdot \left(\left(-4 + \color{blue}{-1 \cdot \left(z \cdot -6\right)}\right) + 1\right) \]
      7. *-commutative75.2%

        \[\leadsto x \cdot \left(\left(-4 + -1 \cdot \color{blue}{\left(-6 \cdot z\right)}\right) + 1\right) \]
      8. metadata-eval75.2%

        \[\leadsto x \cdot \left(\left(\color{blue}{-1 \cdot 4} + -1 \cdot \left(-6 \cdot z\right)\right) + 1\right) \]
      9. distribute-lft-in75.2%

        \[\leadsto x \cdot \left(\color{blue}{-1 \cdot \left(4 + -6 \cdot z\right)} + 1\right) \]
      10. +-commutative75.2%

        \[\leadsto x \cdot \color{blue}{\left(1 + -1 \cdot \left(4 + -6 \cdot z\right)\right)} \]
      11. distribute-lft-in75.2%

        \[\leadsto x \cdot \left(1 + \color{blue}{\left(-1 \cdot 4 + -1 \cdot \left(-6 \cdot z\right)\right)}\right) \]
      12. metadata-eval75.2%

        \[\leadsto x \cdot \left(1 + \left(\color{blue}{-4} + -1 \cdot \left(-6 \cdot z\right)\right)\right) \]
      13. associate-+r+75.2%

        \[\leadsto x \cdot \color{blue}{\left(\left(1 + -4\right) + -1 \cdot \left(-6 \cdot z\right)\right)} \]
      14. metadata-eval75.2%

        \[\leadsto x \cdot \left(\color{blue}{-3} + -1 \cdot \left(-6 \cdot z\right)\right) \]
      15. associate-*r*75.2%

        \[\leadsto x \cdot \left(-3 + \color{blue}{\left(-1 \cdot -6\right) \cdot z}\right) \]
      16. metadata-eval75.2%

        \[\leadsto x \cdot \left(-3 + \color{blue}{6} \cdot z\right) \]
      17. *-commutative75.2%

        \[\leadsto x \cdot \left(-3 + \color{blue}{z \cdot 6}\right) \]
    7. Simplified75.2%

      \[\leadsto \color{blue}{x \cdot \left(-3 + z \cdot 6\right)} \]
    8. Taylor expanded in z around inf 75.3%

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

    if -2.0499999999999999e34 < z < -18

    1. Initial program 99.3%

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

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

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 78.0%

      \[\leadsto x + \color{blue}{6 \cdot \left(y \cdot \left(0.6666666666666666 - z\right)\right)} \]
    6. Taylor expanded in z around inf 69.5%

      \[\leadsto x + \color{blue}{-6 \cdot \left(y \cdot z\right)} \]
    7. Taylor expanded in x around 0 70.0%

      \[\leadsto \color{blue}{-6 \cdot \left(y \cdot z\right)} \]
    8. Step-by-step derivation
      1. associate-*r*70.2%

        \[\leadsto \color{blue}{\left(-6 \cdot y\right) \cdot z} \]
      2. *-commutative70.2%

        \[\leadsto \color{blue}{\left(y \cdot -6\right)} \cdot z \]
      3. associate-*r*70.0%

        \[\leadsto \color{blue}{y \cdot \left(-6 \cdot z\right)} \]
    9. Simplified70.0%

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

    if -18 < z < -1.55000000000000005e-186 or 1.35e-214 < 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 63.2%

      \[\leadsto \color{blue}{x \cdot \left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
    6. Step-by-step derivation
      1. +-commutative63.2%

        \[\leadsto x \cdot \color{blue}{\left(-6 \cdot \left(0.6666666666666666 - z\right) + 1\right)} \]
      2. sub-neg63.2%

        \[\leadsto x \cdot \left(-6 \cdot \color{blue}{\left(0.6666666666666666 + \left(-z\right)\right)} + 1\right) \]
      3. distribute-rgt-in63.3%

        \[\leadsto x \cdot \left(\color{blue}{\left(0.6666666666666666 \cdot -6 + \left(-z\right) \cdot -6\right)} + 1\right) \]
      4. metadata-eval63.3%

        \[\leadsto x \cdot \left(\left(\color{blue}{-4} + \left(-z\right) \cdot -6\right) + 1\right) \]
      5. neg-mul-163.3%

        \[\leadsto x \cdot \left(\left(-4 + \color{blue}{\left(-1 \cdot z\right)} \cdot -6\right) + 1\right) \]
      6. associate-*r*63.3%

        \[\leadsto x \cdot \left(\left(-4 + \color{blue}{-1 \cdot \left(z \cdot -6\right)}\right) + 1\right) \]
      7. *-commutative63.3%

        \[\leadsto x \cdot \left(\left(-4 + -1 \cdot \color{blue}{\left(-6 \cdot z\right)}\right) + 1\right) \]
      8. metadata-eval63.3%

        \[\leadsto x \cdot \left(\left(\color{blue}{-1 \cdot 4} + -1 \cdot \left(-6 \cdot z\right)\right) + 1\right) \]
      9. distribute-lft-in63.3%

        \[\leadsto x \cdot \left(\color{blue}{-1 \cdot \left(4 + -6 \cdot z\right)} + 1\right) \]
      10. +-commutative63.3%

        \[\leadsto x \cdot \color{blue}{\left(1 + -1 \cdot \left(4 + -6 \cdot z\right)\right)} \]
      11. distribute-lft-in63.3%

        \[\leadsto x \cdot \left(1 + \color{blue}{\left(-1 \cdot 4 + -1 \cdot \left(-6 \cdot z\right)\right)}\right) \]
      12. metadata-eval63.3%

        \[\leadsto x \cdot \left(1 + \left(\color{blue}{-4} + -1 \cdot \left(-6 \cdot z\right)\right)\right) \]
      13. associate-+r+63.3%

        \[\leadsto x \cdot \color{blue}{\left(\left(1 + -4\right) + -1 \cdot \left(-6 \cdot z\right)\right)} \]
      14. metadata-eval63.3%

        \[\leadsto x \cdot \left(\color{blue}{-3} + -1 \cdot \left(-6 \cdot z\right)\right) \]
      15. associate-*r*63.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{\left(-1 \cdot -6\right) \cdot z}\right) \]
      16. metadata-eval63.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{6} \cdot z\right) \]
      17. *-commutative63.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{z \cdot 6}\right) \]
    7. Simplified63.3%

      \[\leadsto \color{blue}{x \cdot \left(-3 + z \cdot 6\right)} \]
    8. Taylor expanded in z around 0 59.4%

      \[\leadsto \color{blue}{-3 \cdot x} \]
    9. Step-by-step derivation
      1. *-commutative59.4%

        \[\leadsto \color{blue}{x \cdot -3} \]
    10. Simplified59.4%

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

    if -1.55000000000000005e-186 < z < 1.35e-214

    1. Initial program 99.2%

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

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified99.2%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 90.5%

      \[\leadsto \color{blue}{y \cdot \left(-6 \cdot \frac{x \cdot \left(0.6666666666666666 - z\right)}{y} + \left(6 \cdot \left(0.6666666666666666 - z\right) + \frac{x}{y}\right)\right)} \]
    6. Taylor expanded in x around 0 66.5%

      \[\leadsto y \cdot \color{blue}{\left(6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
    7. Taylor expanded in z around 0 66.5%

      \[\leadsto \color{blue}{4 \cdot y} \]
    8. Step-by-step derivation
      1. *-commutative66.5%

        \[\leadsto \color{blue}{y \cdot 4} \]
    9. Simplified66.5%

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

    if 0.5 < z < 2.7e118

    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 63.5%

      \[\leadsto \color{blue}{x \cdot \left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
    6. Step-by-step derivation
      1. +-commutative63.5%

        \[\leadsto x \cdot \color{blue}{\left(-6 \cdot \left(0.6666666666666666 - z\right) + 1\right)} \]
      2. sub-neg63.5%

        \[\leadsto x \cdot \left(-6 \cdot \color{blue}{\left(0.6666666666666666 + \left(-z\right)\right)} + 1\right) \]
      3. distribute-rgt-in63.4%

        \[\leadsto x \cdot \left(\color{blue}{\left(0.6666666666666666 \cdot -6 + \left(-z\right) \cdot -6\right)} + 1\right) \]
      4. metadata-eval63.4%

        \[\leadsto x \cdot \left(\left(\color{blue}{-4} + \left(-z\right) \cdot -6\right) + 1\right) \]
      5. neg-mul-163.4%

        \[\leadsto x \cdot \left(\left(-4 + \color{blue}{\left(-1 \cdot z\right)} \cdot -6\right) + 1\right) \]
      6. associate-*r*63.4%

        \[\leadsto x \cdot \left(\left(-4 + \color{blue}{-1 \cdot \left(z \cdot -6\right)}\right) + 1\right) \]
      7. *-commutative63.4%

        \[\leadsto x \cdot \left(\left(-4 + -1 \cdot \color{blue}{\left(-6 \cdot z\right)}\right) + 1\right) \]
      8. metadata-eval63.4%

        \[\leadsto x \cdot \left(\left(\color{blue}{-1 \cdot 4} + -1 \cdot \left(-6 \cdot z\right)\right) + 1\right) \]
      9. distribute-lft-in63.4%

        \[\leadsto x \cdot \left(\color{blue}{-1 \cdot \left(4 + -6 \cdot z\right)} + 1\right) \]
      10. +-commutative63.4%

        \[\leadsto x \cdot \color{blue}{\left(1 + -1 \cdot \left(4 + -6 \cdot z\right)\right)} \]
      11. distribute-lft-in63.4%

        \[\leadsto x \cdot \left(1 + \color{blue}{\left(-1 \cdot 4 + -1 \cdot \left(-6 \cdot z\right)\right)}\right) \]
      12. metadata-eval63.4%

        \[\leadsto x \cdot \left(1 + \left(\color{blue}{-4} + -1 \cdot \left(-6 \cdot z\right)\right)\right) \]
      13. associate-+r+63.4%

        \[\leadsto x \cdot \color{blue}{\left(\left(1 + -4\right) + -1 \cdot \left(-6 \cdot z\right)\right)} \]
      14. metadata-eval63.4%

        \[\leadsto x \cdot \left(\color{blue}{-3} + -1 \cdot \left(-6 \cdot z\right)\right) \]
      15. associate-*r*63.4%

        \[\leadsto x \cdot \left(-3 + \color{blue}{\left(-1 \cdot -6\right) \cdot z}\right) \]
      16. metadata-eval63.4%

        \[\leadsto x \cdot \left(-3 + \color{blue}{6} \cdot z\right) \]
      17. *-commutative63.4%

        \[\leadsto x \cdot \left(-3 + \color{blue}{z \cdot 6}\right) \]
    7. Simplified63.4%

      \[\leadsto \color{blue}{x \cdot \left(-3 + z \cdot 6\right)} \]
    8. Taylor expanded in z around inf 57.2%

      \[\leadsto \color{blue}{6 \cdot \left(x \cdot z\right)} \]
    9. Step-by-step derivation
      1. associate-*r*57.1%

        \[\leadsto \color{blue}{\left(6 \cdot x\right) \cdot z} \]
      2. *-commutative57.1%

        \[\leadsto \color{blue}{\left(x \cdot 6\right)} \cdot z \]
      3. associate-*r*57.2%

        \[\leadsto \color{blue}{x \cdot \left(6 \cdot z\right)} \]
    10. Simplified57.2%

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

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -3.5 \cdot 10^{+160}:\\ \;\;\;\;-6 \cdot \left(y \cdot z\right)\\ \mathbf{elif}\;z \leq -2.05 \cdot 10^{+34}:\\ \;\;\;\;6 \cdot \left(x \cdot z\right)\\ \mathbf{elif}\;z \leq -18:\\ \;\;\;\;y \cdot \left(z \cdot -6\right)\\ \mathbf{elif}\;z \leq -1.55 \cdot 10^{-186}:\\ \;\;\;\;x \cdot -3\\ \mathbf{elif}\;z \leq 1.35 \cdot 10^{-214}:\\ \;\;\;\;y \cdot 4\\ \mathbf{elif}\;z \leq 0.5:\\ \;\;\;\;x \cdot -3\\ \mathbf{elif}\;z \leq 2.7 \cdot 10^{+118}:\\ \;\;\;\;x \cdot \left(z \cdot 6\right)\\ \mathbf{else}:\\ \;\;\;\;-6 \cdot \left(y \cdot z\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 5: 50.4% accurate, 0.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := -6 \cdot \left(y \cdot z\right)\\ \mathbf{if}\;z \leq -9.5 \cdot 10^{+165}:\\ \;\;\;\;t\_0\\ \mathbf{elif}\;z \leq -6 \cdot 10^{+33}:\\ \;\;\;\;6 \cdot \left(x \cdot z\right)\\ \mathbf{elif}\;z \leq -22.5:\\ \;\;\;\;t\_0\\ \mathbf{elif}\;z \leq -1.75 \cdot 10^{-185}:\\ \;\;\;\;x \cdot -3\\ \mathbf{elif}\;z \leq 2.2 \cdot 10^{-215}:\\ \;\;\;\;y \cdot 4\\ \mathbf{elif}\;z \leq 0.5:\\ \;\;\;\;x \cdot -3\\ \mathbf{elif}\;z \leq 2.55 \cdot 10^{+118}:\\ \;\;\;\;x \cdot \left(z \cdot 6\right)\\ \mathbf{else}:\\ \;\;\;\;t\_0\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (let* ((t_0 (* -6.0 (* y z))))
   (if (<= z -9.5e+165)
     t_0
     (if (<= z -6e+33)
       (* 6.0 (* x z))
       (if (<= z -22.5)
         t_0
         (if (<= z -1.75e-185)
           (* x -3.0)
           (if (<= z 2.2e-215)
             (* y 4.0)
             (if (<= z 0.5)
               (* x -3.0)
               (if (<= z 2.55e+118) (* x (* z 6.0)) t_0)))))))))
double code(double x, double y, double z) {
	double t_0 = -6.0 * (y * z);
	double tmp;
	if (z <= -9.5e+165) {
		tmp = t_0;
	} else if (z <= -6e+33) {
		tmp = 6.0 * (x * z);
	} else if (z <= -22.5) {
		tmp = t_0;
	} else if (z <= -1.75e-185) {
		tmp = x * -3.0;
	} else if (z <= 2.2e-215) {
		tmp = y * 4.0;
	} else if (z <= 0.5) {
		tmp = x * -3.0;
	} else if (z <= 2.55e+118) {
		tmp = x * (z * 6.0);
	} 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 <= (-9.5d+165)) then
        tmp = t_0
    else if (z <= (-6d+33)) then
        tmp = 6.0d0 * (x * z)
    else if (z <= (-22.5d0)) then
        tmp = t_0
    else if (z <= (-1.75d-185)) then
        tmp = x * (-3.0d0)
    else if (z <= 2.2d-215) then
        tmp = y * 4.0d0
    else if (z <= 0.5d0) then
        tmp = x * (-3.0d0)
    else if (z <= 2.55d+118) then
        tmp = x * (z * 6.0d0)
    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 <= -9.5e+165) {
		tmp = t_0;
	} else if (z <= -6e+33) {
		tmp = 6.0 * (x * z);
	} else if (z <= -22.5) {
		tmp = t_0;
	} else if (z <= -1.75e-185) {
		tmp = x * -3.0;
	} else if (z <= 2.2e-215) {
		tmp = y * 4.0;
	} else if (z <= 0.5) {
		tmp = x * -3.0;
	} else if (z <= 2.55e+118) {
		tmp = x * (z * 6.0);
	} else {
		tmp = t_0;
	}
	return tmp;
}
def code(x, y, z):
	t_0 = -6.0 * (y * z)
	tmp = 0
	if z <= -9.5e+165:
		tmp = t_0
	elif z <= -6e+33:
		tmp = 6.0 * (x * z)
	elif z <= -22.5:
		tmp = t_0
	elif z <= -1.75e-185:
		tmp = x * -3.0
	elif z <= 2.2e-215:
		tmp = y * 4.0
	elif z <= 0.5:
		tmp = x * -3.0
	elif z <= 2.55e+118:
		tmp = x * (z * 6.0)
	else:
		tmp = t_0
	return tmp
function code(x, y, z)
	t_0 = Float64(-6.0 * Float64(y * z))
	tmp = 0.0
	if (z <= -9.5e+165)
		tmp = t_0;
	elseif (z <= -6e+33)
		tmp = Float64(6.0 * Float64(x * z));
	elseif (z <= -22.5)
		tmp = t_0;
	elseif (z <= -1.75e-185)
		tmp = Float64(x * -3.0);
	elseif (z <= 2.2e-215)
		tmp = Float64(y * 4.0);
	elseif (z <= 0.5)
		tmp = Float64(x * -3.0);
	elseif (z <= 2.55e+118)
		tmp = Float64(x * Float64(z * 6.0));
	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 <= -9.5e+165)
		tmp = t_0;
	elseif (z <= -6e+33)
		tmp = 6.0 * (x * z);
	elseif (z <= -22.5)
		tmp = t_0;
	elseif (z <= -1.75e-185)
		tmp = x * -3.0;
	elseif (z <= 2.2e-215)
		tmp = y * 4.0;
	elseif (z <= 0.5)
		tmp = x * -3.0;
	elseif (z <= 2.55e+118)
		tmp = x * (z * 6.0);
	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, -9.5e+165], t$95$0, If[LessEqual[z, -6e+33], N[(6.0 * N[(x * z), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, -22.5], t$95$0, If[LessEqual[z, -1.75e-185], N[(x * -3.0), $MachinePrecision], If[LessEqual[z, 2.2e-215], N[(y * 4.0), $MachinePrecision], If[LessEqual[z, 0.5], N[(x * -3.0), $MachinePrecision], If[LessEqual[z, 2.55e+118], N[(x * N[(z * 6.0), $MachinePrecision]), $MachinePrecision], t$95$0]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := -6 \cdot \left(y \cdot z\right)\\
\mathbf{if}\;z \leq -9.5 \cdot 10^{+165}:\\
\;\;\;\;t\_0\\

\mathbf{elif}\;z \leq -6 \cdot 10^{+33}:\\
\;\;\;\;6 \cdot \left(x \cdot z\right)\\

\mathbf{elif}\;z \leq -22.5:\\
\;\;\;\;t\_0\\

\mathbf{elif}\;z \leq -1.75 \cdot 10^{-185}:\\
\;\;\;\;x \cdot -3\\

\mathbf{elif}\;z \leq 2.2 \cdot 10^{-215}:\\
\;\;\;\;y \cdot 4\\

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

\mathbf{elif}\;z \leq 2.55 \cdot 10^{+118}:\\
\;\;\;\;x \cdot \left(z \cdot 6\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 5 regimes
  2. if z < -9.50000000000000017e165 or -5.99999999999999967e33 < z < -22.5 or 2.55000000000000001e118 < 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 y around inf 65.9%

      \[\leadsto x + \color{blue}{6 \cdot \left(y \cdot \left(0.6666666666666666 - z\right)\right)} \]
    6. Taylor expanded in z around inf 64.9%

      \[\leadsto x + \color{blue}{-6 \cdot \left(y \cdot z\right)} \]
    7. Taylor expanded in x around 0 64.7%

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

    if -9.50000000000000017e165 < z < -5.99999999999999967e33

    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 x around inf 75.2%

      \[\leadsto \color{blue}{x \cdot \left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
    6. Step-by-step derivation
      1. +-commutative75.2%

        \[\leadsto x \cdot \color{blue}{\left(-6 \cdot \left(0.6666666666666666 - z\right) + 1\right)} \]
      2. sub-neg75.2%

        \[\leadsto x \cdot \left(-6 \cdot \color{blue}{\left(0.6666666666666666 + \left(-z\right)\right)} + 1\right) \]
      3. distribute-rgt-in75.2%

        \[\leadsto x \cdot \left(\color{blue}{\left(0.6666666666666666 \cdot -6 + \left(-z\right) \cdot -6\right)} + 1\right) \]
      4. metadata-eval75.2%

        \[\leadsto x \cdot \left(\left(\color{blue}{-4} + \left(-z\right) \cdot -6\right) + 1\right) \]
      5. neg-mul-175.2%

        \[\leadsto x \cdot \left(\left(-4 + \color{blue}{\left(-1 \cdot z\right)} \cdot -6\right) + 1\right) \]
      6. associate-*r*75.2%

        \[\leadsto x \cdot \left(\left(-4 + \color{blue}{-1 \cdot \left(z \cdot -6\right)}\right) + 1\right) \]
      7. *-commutative75.2%

        \[\leadsto x \cdot \left(\left(-4 + -1 \cdot \color{blue}{\left(-6 \cdot z\right)}\right) + 1\right) \]
      8. metadata-eval75.2%

        \[\leadsto x \cdot \left(\left(\color{blue}{-1 \cdot 4} + -1 \cdot \left(-6 \cdot z\right)\right) + 1\right) \]
      9. distribute-lft-in75.2%

        \[\leadsto x \cdot \left(\color{blue}{-1 \cdot \left(4 + -6 \cdot z\right)} + 1\right) \]
      10. +-commutative75.2%

        \[\leadsto x \cdot \color{blue}{\left(1 + -1 \cdot \left(4 + -6 \cdot z\right)\right)} \]
      11. distribute-lft-in75.2%

        \[\leadsto x \cdot \left(1 + \color{blue}{\left(-1 \cdot 4 + -1 \cdot \left(-6 \cdot z\right)\right)}\right) \]
      12. metadata-eval75.2%

        \[\leadsto x \cdot \left(1 + \left(\color{blue}{-4} + -1 \cdot \left(-6 \cdot z\right)\right)\right) \]
      13. associate-+r+75.2%

        \[\leadsto x \cdot \color{blue}{\left(\left(1 + -4\right) + -1 \cdot \left(-6 \cdot z\right)\right)} \]
      14. metadata-eval75.2%

        \[\leadsto x \cdot \left(\color{blue}{-3} + -1 \cdot \left(-6 \cdot z\right)\right) \]
      15. associate-*r*75.2%

        \[\leadsto x \cdot \left(-3 + \color{blue}{\left(-1 \cdot -6\right) \cdot z}\right) \]
      16. metadata-eval75.2%

        \[\leadsto x \cdot \left(-3 + \color{blue}{6} \cdot z\right) \]
      17. *-commutative75.2%

        \[\leadsto x \cdot \left(-3 + \color{blue}{z \cdot 6}\right) \]
    7. Simplified75.2%

      \[\leadsto \color{blue}{x \cdot \left(-3 + z \cdot 6\right)} \]
    8. Taylor expanded in z around inf 75.3%

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

    if -22.5 < z < -1.7499999999999999e-185 or 2.19999999999999996e-215 < 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 63.2%

      \[\leadsto \color{blue}{x \cdot \left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
    6. Step-by-step derivation
      1. +-commutative63.2%

        \[\leadsto x \cdot \color{blue}{\left(-6 \cdot \left(0.6666666666666666 - z\right) + 1\right)} \]
      2. sub-neg63.2%

        \[\leadsto x \cdot \left(-6 \cdot \color{blue}{\left(0.6666666666666666 + \left(-z\right)\right)} + 1\right) \]
      3. distribute-rgt-in63.3%

        \[\leadsto x \cdot \left(\color{blue}{\left(0.6666666666666666 \cdot -6 + \left(-z\right) \cdot -6\right)} + 1\right) \]
      4. metadata-eval63.3%

        \[\leadsto x \cdot \left(\left(\color{blue}{-4} + \left(-z\right) \cdot -6\right) + 1\right) \]
      5. neg-mul-163.3%

        \[\leadsto x \cdot \left(\left(-4 + \color{blue}{\left(-1 \cdot z\right)} \cdot -6\right) + 1\right) \]
      6. associate-*r*63.3%

        \[\leadsto x \cdot \left(\left(-4 + \color{blue}{-1 \cdot \left(z \cdot -6\right)}\right) + 1\right) \]
      7. *-commutative63.3%

        \[\leadsto x \cdot \left(\left(-4 + -1 \cdot \color{blue}{\left(-6 \cdot z\right)}\right) + 1\right) \]
      8. metadata-eval63.3%

        \[\leadsto x \cdot \left(\left(\color{blue}{-1 \cdot 4} + -1 \cdot \left(-6 \cdot z\right)\right) + 1\right) \]
      9. distribute-lft-in63.3%

        \[\leadsto x \cdot \left(\color{blue}{-1 \cdot \left(4 + -6 \cdot z\right)} + 1\right) \]
      10. +-commutative63.3%

        \[\leadsto x \cdot \color{blue}{\left(1 + -1 \cdot \left(4 + -6 \cdot z\right)\right)} \]
      11. distribute-lft-in63.3%

        \[\leadsto x \cdot \left(1 + \color{blue}{\left(-1 \cdot 4 + -1 \cdot \left(-6 \cdot z\right)\right)}\right) \]
      12. metadata-eval63.3%

        \[\leadsto x \cdot \left(1 + \left(\color{blue}{-4} + -1 \cdot \left(-6 \cdot z\right)\right)\right) \]
      13. associate-+r+63.3%

        \[\leadsto x \cdot \color{blue}{\left(\left(1 + -4\right) + -1 \cdot \left(-6 \cdot z\right)\right)} \]
      14. metadata-eval63.3%

        \[\leadsto x \cdot \left(\color{blue}{-3} + -1 \cdot \left(-6 \cdot z\right)\right) \]
      15. associate-*r*63.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{\left(-1 \cdot -6\right) \cdot z}\right) \]
      16. metadata-eval63.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{6} \cdot z\right) \]
      17. *-commutative63.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{z \cdot 6}\right) \]
    7. Simplified63.3%

      \[\leadsto \color{blue}{x \cdot \left(-3 + z \cdot 6\right)} \]
    8. Taylor expanded in z around 0 59.4%

      \[\leadsto \color{blue}{-3 \cdot x} \]
    9. Step-by-step derivation
      1. *-commutative59.4%

        \[\leadsto \color{blue}{x \cdot -3} \]
    10. Simplified59.4%

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

    if -1.7499999999999999e-185 < z < 2.19999999999999996e-215

    1. Initial program 99.2%

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

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified99.2%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 90.5%

      \[\leadsto \color{blue}{y \cdot \left(-6 \cdot \frac{x \cdot \left(0.6666666666666666 - z\right)}{y} + \left(6 \cdot \left(0.6666666666666666 - z\right) + \frac{x}{y}\right)\right)} \]
    6. Taylor expanded in x around 0 66.5%

      \[\leadsto y \cdot \color{blue}{\left(6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
    7. Taylor expanded in z around 0 66.5%

      \[\leadsto \color{blue}{4 \cdot y} \]
    8. Step-by-step derivation
      1. *-commutative66.5%

        \[\leadsto \color{blue}{y \cdot 4} \]
    9. Simplified66.5%

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

    if 0.5 < z < 2.55000000000000001e118

    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 63.5%

      \[\leadsto \color{blue}{x \cdot \left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
    6. Step-by-step derivation
      1. +-commutative63.5%

        \[\leadsto x \cdot \color{blue}{\left(-6 \cdot \left(0.6666666666666666 - z\right) + 1\right)} \]
      2. sub-neg63.5%

        \[\leadsto x \cdot \left(-6 \cdot \color{blue}{\left(0.6666666666666666 + \left(-z\right)\right)} + 1\right) \]
      3. distribute-rgt-in63.4%

        \[\leadsto x \cdot \left(\color{blue}{\left(0.6666666666666666 \cdot -6 + \left(-z\right) \cdot -6\right)} + 1\right) \]
      4. metadata-eval63.4%

        \[\leadsto x \cdot \left(\left(\color{blue}{-4} + \left(-z\right) \cdot -6\right) + 1\right) \]
      5. neg-mul-163.4%

        \[\leadsto x \cdot \left(\left(-4 + \color{blue}{\left(-1 \cdot z\right)} \cdot -6\right) + 1\right) \]
      6. associate-*r*63.4%

        \[\leadsto x \cdot \left(\left(-4 + \color{blue}{-1 \cdot \left(z \cdot -6\right)}\right) + 1\right) \]
      7. *-commutative63.4%

        \[\leadsto x \cdot \left(\left(-4 + -1 \cdot \color{blue}{\left(-6 \cdot z\right)}\right) + 1\right) \]
      8. metadata-eval63.4%

        \[\leadsto x \cdot \left(\left(\color{blue}{-1 \cdot 4} + -1 \cdot \left(-6 \cdot z\right)\right) + 1\right) \]
      9. distribute-lft-in63.4%

        \[\leadsto x \cdot \left(\color{blue}{-1 \cdot \left(4 + -6 \cdot z\right)} + 1\right) \]
      10. +-commutative63.4%

        \[\leadsto x \cdot \color{blue}{\left(1 + -1 \cdot \left(4 + -6 \cdot z\right)\right)} \]
      11. distribute-lft-in63.4%

        \[\leadsto x \cdot \left(1 + \color{blue}{\left(-1 \cdot 4 + -1 \cdot \left(-6 \cdot z\right)\right)}\right) \]
      12. metadata-eval63.4%

        \[\leadsto x \cdot \left(1 + \left(\color{blue}{-4} + -1 \cdot \left(-6 \cdot z\right)\right)\right) \]
      13. associate-+r+63.4%

        \[\leadsto x \cdot \color{blue}{\left(\left(1 + -4\right) + -1 \cdot \left(-6 \cdot z\right)\right)} \]
      14. metadata-eval63.4%

        \[\leadsto x \cdot \left(\color{blue}{-3} + -1 \cdot \left(-6 \cdot z\right)\right) \]
      15. associate-*r*63.4%

        \[\leadsto x \cdot \left(-3 + \color{blue}{\left(-1 \cdot -6\right) \cdot z}\right) \]
      16. metadata-eval63.4%

        \[\leadsto x \cdot \left(-3 + \color{blue}{6} \cdot z\right) \]
      17. *-commutative63.4%

        \[\leadsto x \cdot \left(-3 + \color{blue}{z \cdot 6}\right) \]
    7. Simplified63.4%

      \[\leadsto \color{blue}{x \cdot \left(-3 + z \cdot 6\right)} \]
    8. Taylor expanded in z around inf 57.2%

      \[\leadsto \color{blue}{6 \cdot \left(x \cdot z\right)} \]
    9. Step-by-step derivation
      1. associate-*r*57.1%

        \[\leadsto \color{blue}{\left(6 \cdot x\right) \cdot z} \]
      2. *-commutative57.1%

        \[\leadsto \color{blue}{\left(x \cdot 6\right)} \cdot z \]
      3. associate-*r*57.2%

        \[\leadsto \color{blue}{x \cdot \left(6 \cdot z\right)} \]
    10. Simplified57.2%

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

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -9.5 \cdot 10^{+165}:\\ \;\;\;\;-6 \cdot \left(y \cdot z\right)\\ \mathbf{elif}\;z \leq -6 \cdot 10^{+33}:\\ \;\;\;\;6 \cdot \left(x \cdot z\right)\\ \mathbf{elif}\;z \leq -22.5:\\ \;\;\;\;-6 \cdot \left(y \cdot z\right)\\ \mathbf{elif}\;z \leq -1.75 \cdot 10^{-185}:\\ \;\;\;\;x \cdot -3\\ \mathbf{elif}\;z \leq 2.2 \cdot 10^{-215}:\\ \;\;\;\;y \cdot 4\\ \mathbf{elif}\;z \leq 0.5:\\ \;\;\;\;x \cdot -3\\ \mathbf{elif}\;z \leq 2.55 \cdot 10^{+118}:\\ \;\;\;\;x \cdot \left(z \cdot 6\right)\\ \mathbf{else}:\\ \;\;\;\;-6 \cdot \left(y \cdot z\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 6: 50.6% accurate, 0.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := -6 \cdot \left(y \cdot z\right)\\ t_1 := 6 \cdot \left(x \cdot z\right)\\ \mathbf{if}\;z \leq -2.7 \cdot 10^{+160}:\\ \;\;\;\;t\_0\\ \mathbf{elif}\;z \leq -6.1 \cdot 10^{+35}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq -17:\\ \;\;\;\;t\_0\\ \mathbf{elif}\;z \leq -8.5 \cdot 10^{-186}:\\ \;\;\;\;x \cdot -3\\ \mathbf{elif}\;z \leq 10^{-214}:\\ \;\;\;\;y \cdot 4\\ \mathbf{elif}\;z \leq 0.5:\\ \;\;\;\;x \cdot -3\\ \mathbf{elif}\;z \leq 2.6 \cdot 10^{+118}:\\ \;\;\;\;t\_1\\ \mathbf{else}:\\ \;\;\;\;t\_0\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (let* ((t_0 (* -6.0 (* y z))) (t_1 (* 6.0 (* x z))))
   (if (<= z -2.7e+160)
     t_0
     (if (<= z -6.1e+35)
       t_1
       (if (<= z -17.0)
         t_0
         (if (<= z -8.5e-186)
           (* x -3.0)
           (if (<= z 1e-214)
             (* y 4.0)
             (if (<= z 0.5) (* x -3.0) (if (<= z 2.6e+118) t_1 t_0)))))))))
double code(double x, double y, double z) {
	double t_0 = -6.0 * (y * z);
	double t_1 = 6.0 * (x * z);
	double tmp;
	if (z <= -2.7e+160) {
		tmp = t_0;
	} else if (z <= -6.1e+35) {
		tmp = t_1;
	} else if (z <= -17.0) {
		tmp = t_0;
	} else if (z <= -8.5e-186) {
		tmp = x * -3.0;
	} else if (z <= 1e-214) {
		tmp = y * 4.0;
	} else if (z <= 0.5) {
		tmp = x * -3.0;
	} else if (z <= 2.6e+118) {
		tmp = t_1;
	} 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) :: t_1
    real(8) :: tmp
    t_0 = (-6.0d0) * (y * z)
    t_1 = 6.0d0 * (x * z)
    if (z <= (-2.7d+160)) then
        tmp = t_0
    else if (z <= (-6.1d+35)) then
        tmp = t_1
    else if (z <= (-17.0d0)) then
        tmp = t_0
    else if (z <= (-8.5d-186)) then
        tmp = x * (-3.0d0)
    else if (z <= 1d-214) then
        tmp = y * 4.0d0
    else if (z <= 0.5d0) then
        tmp = x * (-3.0d0)
    else if (z <= 2.6d+118) then
        tmp = t_1
    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 t_1 = 6.0 * (x * z);
	double tmp;
	if (z <= -2.7e+160) {
		tmp = t_0;
	} else if (z <= -6.1e+35) {
		tmp = t_1;
	} else if (z <= -17.0) {
		tmp = t_0;
	} else if (z <= -8.5e-186) {
		tmp = x * -3.0;
	} else if (z <= 1e-214) {
		tmp = y * 4.0;
	} else if (z <= 0.5) {
		tmp = x * -3.0;
	} else if (z <= 2.6e+118) {
		tmp = t_1;
	} else {
		tmp = t_0;
	}
	return tmp;
}
def code(x, y, z):
	t_0 = -6.0 * (y * z)
	t_1 = 6.0 * (x * z)
	tmp = 0
	if z <= -2.7e+160:
		tmp = t_0
	elif z <= -6.1e+35:
		tmp = t_1
	elif z <= -17.0:
		tmp = t_0
	elif z <= -8.5e-186:
		tmp = x * -3.0
	elif z <= 1e-214:
		tmp = y * 4.0
	elif z <= 0.5:
		tmp = x * -3.0
	elif z <= 2.6e+118:
		tmp = t_1
	else:
		tmp = t_0
	return tmp
function code(x, y, z)
	t_0 = Float64(-6.0 * Float64(y * z))
	t_1 = Float64(6.0 * Float64(x * z))
	tmp = 0.0
	if (z <= -2.7e+160)
		tmp = t_0;
	elseif (z <= -6.1e+35)
		tmp = t_1;
	elseif (z <= -17.0)
		tmp = t_0;
	elseif (z <= -8.5e-186)
		tmp = Float64(x * -3.0);
	elseif (z <= 1e-214)
		tmp = Float64(y * 4.0);
	elseif (z <= 0.5)
		tmp = Float64(x * -3.0);
	elseif (z <= 2.6e+118)
		tmp = t_1;
	else
		tmp = t_0;
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	t_0 = -6.0 * (y * z);
	t_1 = 6.0 * (x * z);
	tmp = 0.0;
	if (z <= -2.7e+160)
		tmp = t_0;
	elseif (z <= -6.1e+35)
		tmp = t_1;
	elseif (z <= -17.0)
		tmp = t_0;
	elseif (z <= -8.5e-186)
		tmp = x * -3.0;
	elseif (z <= 1e-214)
		tmp = y * 4.0;
	elseif (z <= 0.5)
		tmp = x * -3.0;
	elseif (z <= 2.6e+118)
		tmp = t_1;
	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]}, Block[{t$95$1 = N[(6.0 * N[(x * z), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[z, -2.7e+160], t$95$0, If[LessEqual[z, -6.1e+35], t$95$1, If[LessEqual[z, -17.0], t$95$0, If[LessEqual[z, -8.5e-186], N[(x * -3.0), $MachinePrecision], If[LessEqual[z, 1e-214], N[(y * 4.0), $MachinePrecision], If[LessEqual[z, 0.5], N[(x * -3.0), $MachinePrecision], If[LessEqual[z, 2.6e+118], t$95$1, t$95$0]]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := -6 \cdot \left(y \cdot z\right)\\
t_1 := 6 \cdot \left(x \cdot z\right)\\
\mathbf{if}\;z \leq -2.7 \cdot 10^{+160}:\\
\;\;\;\;t\_0\\

\mathbf{elif}\;z \leq -6.1 \cdot 10^{+35}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;z \leq -17:\\
\;\;\;\;t\_0\\

\mathbf{elif}\;z \leq -8.5 \cdot 10^{-186}:\\
\;\;\;\;x \cdot -3\\

\mathbf{elif}\;z \leq 10^{-214}:\\
\;\;\;\;y \cdot 4\\

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

\mathbf{elif}\;z \leq 2.6 \cdot 10^{+118}:\\
\;\;\;\;t\_1\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if z < -2.7e160 or -6.09999999999999977e35 < z < -17 or 2.60000000000000016e118 < 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 y around inf 65.9%

      \[\leadsto x + \color{blue}{6 \cdot \left(y \cdot \left(0.6666666666666666 - z\right)\right)} \]
    6. Taylor expanded in z around inf 64.9%

      \[\leadsto x + \color{blue}{-6 \cdot \left(y \cdot z\right)} \]
    7. Taylor expanded in x around 0 64.7%

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

    if -2.7e160 < z < -6.09999999999999977e35 or 0.5 < z < 2.60000000000000016e118

    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 68.0%

      \[\leadsto \color{blue}{x \cdot \left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
    6. Step-by-step derivation
      1. +-commutative68.0%

        \[\leadsto x \cdot \color{blue}{\left(-6 \cdot \left(0.6666666666666666 - z\right) + 1\right)} \]
      2. sub-neg68.0%

        \[\leadsto x \cdot \left(-6 \cdot \color{blue}{\left(0.6666666666666666 + \left(-z\right)\right)} + 1\right) \]
      3. distribute-rgt-in67.9%

        \[\leadsto x \cdot \left(\color{blue}{\left(0.6666666666666666 \cdot -6 + \left(-z\right) \cdot -6\right)} + 1\right) \]
      4. metadata-eval67.9%

        \[\leadsto x \cdot \left(\left(\color{blue}{-4} + \left(-z\right) \cdot -6\right) + 1\right) \]
      5. neg-mul-167.9%

        \[\leadsto x \cdot \left(\left(-4 + \color{blue}{\left(-1 \cdot z\right)} \cdot -6\right) + 1\right) \]
      6. associate-*r*67.9%

        \[\leadsto x \cdot \left(\left(-4 + \color{blue}{-1 \cdot \left(z \cdot -6\right)}\right) + 1\right) \]
      7. *-commutative67.9%

        \[\leadsto x \cdot \left(\left(-4 + -1 \cdot \color{blue}{\left(-6 \cdot z\right)}\right) + 1\right) \]
      8. metadata-eval67.9%

        \[\leadsto x \cdot \left(\left(\color{blue}{-1 \cdot 4} + -1 \cdot \left(-6 \cdot z\right)\right) + 1\right) \]
      9. distribute-lft-in67.9%

        \[\leadsto x \cdot \left(\color{blue}{-1 \cdot \left(4 + -6 \cdot z\right)} + 1\right) \]
      10. +-commutative67.9%

        \[\leadsto x \cdot \color{blue}{\left(1 + -1 \cdot \left(4 + -6 \cdot z\right)\right)} \]
      11. distribute-lft-in67.9%

        \[\leadsto x \cdot \left(1 + \color{blue}{\left(-1 \cdot 4 + -1 \cdot \left(-6 \cdot z\right)\right)}\right) \]
      12. metadata-eval67.9%

        \[\leadsto x \cdot \left(1 + \left(\color{blue}{-4} + -1 \cdot \left(-6 \cdot z\right)\right)\right) \]
      13. associate-+r+67.9%

        \[\leadsto x \cdot \color{blue}{\left(\left(1 + -4\right) + -1 \cdot \left(-6 \cdot z\right)\right)} \]
      14. metadata-eval67.9%

        \[\leadsto x \cdot \left(\color{blue}{-3} + -1 \cdot \left(-6 \cdot z\right)\right) \]
      15. associate-*r*67.9%

        \[\leadsto x \cdot \left(-3 + \color{blue}{\left(-1 \cdot -6\right) \cdot z}\right) \]
      16. metadata-eval67.9%

        \[\leadsto x \cdot \left(-3 + \color{blue}{6} \cdot z\right) \]
      17. *-commutative67.9%

        \[\leadsto x \cdot \left(-3 + \color{blue}{z \cdot 6}\right) \]
    7. Simplified67.9%

      \[\leadsto \color{blue}{x \cdot \left(-3 + z \cdot 6\right)} \]
    8. Taylor expanded in z around inf 64.2%

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

    if -17 < z < -8.4999999999999994e-186 or 9.99999999999999913e-215 < 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 63.2%

      \[\leadsto \color{blue}{x \cdot \left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
    6. Step-by-step derivation
      1. +-commutative63.2%

        \[\leadsto x \cdot \color{blue}{\left(-6 \cdot \left(0.6666666666666666 - z\right) + 1\right)} \]
      2. sub-neg63.2%

        \[\leadsto x \cdot \left(-6 \cdot \color{blue}{\left(0.6666666666666666 + \left(-z\right)\right)} + 1\right) \]
      3. distribute-rgt-in63.3%

        \[\leadsto x \cdot \left(\color{blue}{\left(0.6666666666666666 \cdot -6 + \left(-z\right) \cdot -6\right)} + 1\right) \]
      4. metadata-eval63.3%

        \[\leadsto x \cdot \left(\left(\color{blue}{-4} + \left(-z\right) \cdot -6\right) + 1\right) \]
      5. neg-mul-163.3%

        \[\leadsto x \cdot \left(\left(-4 + \color{blue}{\left(-1 \cdot z\right)} \cdot -6\right) + 1\right) \]
      6. associate-*r*63.3%

        \[\leadsto x \cdot \left(\left(-4 + \color{blue}{-1 \cdot \left(z \cdot -6\right)}\right) + 1\right) \]
      7. *-commutative63.3%

        \[\leadsto x \cdot \left(\left(-4 + -1 \cdot \color{blue}{\left(-6 \cdot z\right)}\right) + 1\right) \]
      8. metadata-eval63.3%

        \[\leadsto x \cdot \left(\left(\color{blue}{-1 \cdot 4} + -1 \cdot \left(-6 \cdot z\right)\right) + 1\right) \]
      9. distribute-lft-in63.3%

        \[\leadsto x \cdot \left(\color{blue}{-1 \cdot \left(4 + -6 \cdot z\right)} + 1\right) \]
      10. +-commutative63.3%

        \[\leadsto x \cdot \color{blue}{\left(1 + -1 \cdot \left(4 + -6 \cdot z\right)\right)} \]
      11. distribute-lft-in63.3%

        \[\leadsto x \cdot \left(1 + \color{blue}{\left(-1 \cdot 4 + -1 \cdot \left(-6 \cdot z\right)\right)}\right) \]
      12. metadata-eval63.3%

        \[\leadsto x \cdot \left(1 + \left(\color{blue}{-4} + -1 \cdot \left(-6 \cdot z\right)\right)\right) \]
      13. associate-+r+63.3%

        \[\leadsto x \cdot \color{blue}{\left(\left(1 + -4\right) + -1 \cdot \left(-6 \cdot z\right)\right)} \]
      14. metadata-eval63.3%

        \[\leadsto x \cdot \left(\color{blue}{-3} + -1 \cdot \left(-6 \cdot z\right)\right) \]
      15. associate-*r*63.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{\left(-1 \cdot -6\right) \cdot z}\right) \]
      16. metadata-eval63.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{6} \cdot z\right) \]
      17. *-commutative63.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{z \cdot 6}\right) \]
    7. Simplified63.3%

      \[\leadsto \color{blue}{x \cdot \left(-3 + z \cdot 6\right)} \]
    8. Taylor expanded in z around 0 59.4%

      \[\leadsto \color{blue}{-3 \cdot x} \]
    9. Step-by-step derivation
      1. *-commutative59.4%

        \[\leadsto \color{blue}{x \cdot -3} \]
    10. Simplified59.4%

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

    if -8.4999999999999994e-186 < z < 9.99999999999999913e-215

    1. Initial program 99.2%

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

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified99.2%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 90.5%

      \[\leadsto \color{blue}{y \cdot \left(-6 \cdot \frac{x \cdot \left(0.6666666666666666 - z\right)}{y} + \left(6 \cdot \left(0.6666666666666666 - z\right) + \frac{x}{y}\right)\right)} \]
    6. Taylor expanded in x around 0 66.5%

      \[\leadsto y \cdot \color{blue}{\left(6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
    7. Taylor expanded in z around 0 66.5%

      \[\leadsto \color{blue}{4 \cdot y} \]
    8. Step-by-step derivation
      1. *-commutative66.5%

        \[\leadsto \color{blue}{y \cdot 4} \]
    9. Simplified66.5%

      \[\leadsto \color{blue}{y \cdot 4} \]
  3. Recombined 4 regimes into one program.
  4. Add Preprocessing

Alternative 7: 50.6% accurate, 0.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := -6 \cdot \left(y \cdot z\right)\\ \mathbf{if}\;z \leq -17.5:\\ \;\;\;\;t\_0\\ \mathbf{elif}\;z \leq -1.8 \cdot 10^{-184}:\\ \;\;\;\;x \cdot -3\\ \mathbf{elif}\;z \leq 3.3 \cdot 10^{-214}:\\ \;\;\;\;y \cdot 4\\ \mathbf{elif}\;z \leq 0.65:\\ \;\;\;\;x \cdot -3\\ \mathbf{else}:\\ \;\;\;\;t\_0\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (let* ((t_0 (* -6.0 (* y z))))
   (if (<= z -17.5)
     t_0
     (if (<= z -1.8e-184)
       (* x -3.0)
       (if (<= z 3.3e-214) (* y 4.0) (if (<= z 0.65) (* x -3.0) t_0))))))
double code(double x, double y, double z) {
	double t_0 = -6.0 * (y * z);
	double tmp;
	if (z <= -17.5) {
		tmp = t_0;
	} else if (z <= -1.8e-184) {
		tmp = x * -3.0;
	} else if (z <= 3.3e-214) {
		tmp = y * 4.0;
	} else if (z <= 0.65) {
		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 <= (-17.5d0)) then
        tmp = t_0
    else if (z <= (-1.8d-184)) then
        tmp = x * (-3.0d0)
    else if (z <= 3.3d-214) then
        tmp = y * 4.0d0
    else if (z <= 0.65d0) 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 <= -17.5) {
		tmp = t_0;
	} else if (z <= -1.8e-184) {
		tmp = x * -3.0;
	} else if (z <= 3.3e-214) {
		tmp = y * 4.0;
	} else if (z <= 0.65) {
		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 <= -17.5:
		tmp = t_0
	elif z <= -1.8e-184:
		tmp = x * -3.0
	elif z <= 3.3e-214:
		tmp = y * 4.0
	elif z <= 0.65:
		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 <= -17.5)
		tmp = t_0;
	elseif (z <= -1.8e-184)
		tmp = Float64(x * -3.0);
	elseif (z <= 3.3e-214)
		tmp = Float64(y * 4.0);
	elseif (z <= 0.65)
		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 <= -17.5)
		tmp = t_0;
	elseif (z <= -1.8e-184)
		tmp = x * -3.0;
	elseif (z <= 3.3e-214)
		tmp = y * 4.0;
	elseif (z <= 0.65)
		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, -17.5], t$95$0, If[LessEqual[z, -1.8e-184], N[(x * -3.0), $MachinePrecision], If[LessEqual[z, 3.3e-214], N[(y * 4.0), $MachinePrecision], If[LessEqual[z, 0.65], 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 -17.5:\\
\;\;\;\;t\_0\\

\mathbf{elif}\;z \leq -1.8 \cdot 10^{-184}:\\
\;\;\;\;x \cdot -3\\

\mathbf{elif}\;z \leq 3.3 \cdot 10^{-214}:\\
\;\;\;\;y \cdot 4\\

\mathbf{elif}\;z \leq 0.65:\\
\;\;\;\;x \cdot -3\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if z < -17.5 or 0.650000000000000022 < z

    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 y around inf 53.8%

      \[\leadsto x + \color{blue}{6 \cdot \left(y \cdot \left(0.6666666666666666 - z\right)\right)} \]
    6. Taylor expanded in z around inf 52.3%

      \[\leadsto x + \color{blue}{-6 \cdot \left(y \cdot z\right)} \]
    7. Taylor expanded in x around 0 51.6%

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

    if -17.5 < z < -1.8000000000000001e-184 or 3.2999999999999998e-214 < z < 0.650000000000000022

    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 63.2%

      \[\leadsto \color{blue}{x \cdot \left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
    6. Step-by-step derivation
      1. +-commutative63.2%

        \[\leadsto x \cdot \color{blue}{\left(-6 \cdot \left(0.6666666666666666 - z\right) + 1\right)} \]
      2. sub-neg63.2%

        \[\leadsto x \cdot \left(-6 \cdot \color{blue}{\left(0.6666666666666666 + \left(-z\right)\right)} + 1\right) \]
      3. distribute-rgt-in63.3%

        \[\leadsto x \cdot \left(\color{blue}{\left(0.6666666666666666 \cdot -6 + \left(-z\right) \cdot -6\right)} + 1\right) \]
      4. metadata-eval63.3%

        \[\leadsto x \cdot \left(\left(\color{blue}{-4} + \left(-z\right) \cdot -6\right) + 1\right) \]
      5. neg-mul-163.3%

        \[\leadsto x \cdot \left(\left(-4 + \color{blue}{\left(-1 \cdot z\right)} \cdot -6\right) + 1\right) \]
      6. associate-*r*63.3%

        \[\leadsto x \cdot \left(\left(-4 + \color{blue}{-1 \cdot \left(z \cdot -6\right)}\right) + 1\right) \]
      7. *-commutative63.3%

        \[\leadsto x \cdot \left(\left(-4 + -1 \cdot \color{blue}{\left(-6 \cdot z\right)}\right) + 1\right) \]
      8. metadata-eval63.3%

        \[\leadsto x \cdot \left(\left(\color{blue}{-1 \cdot 4} + -1 \cdot \left(-6 \cdot z\right)\right) + 1\right) \]
      9. distribute-lft-in63.3%

        \[\leadsto x \cdot \left(\color{blue}{-1 \cdot \left(4 + -6 \cdot z\right)} + 1\right) \]
      10. +-commutative63.3%

        \[\leadsto x \cdot \color{blue}{\left(1 + -1 \cdot \left(4 + -6 \cdot z\right)\right)} \]
      11. distribute-lft-in63.3%

        \[\leadsto x \cdot \left(1 + \color{blue}{\left(-1 \cdot 4 + -1 \cdot \left(-6 \cdot z\right)\right)}\right) \]
      12. metadata-eval63.3%

        \[\leadsto x \cdot \left(1 + \left(\color{blue}{-4} + -1 \cdot \left(-6 \cdot z\right)\right)\right) \]
      13. associate-+r+63.3%

        \[\leadsto x \cdot \color{blue}{\left(\left(1 + -4\right) + -1 \cdot \left(-6 \cdot z\right)\right)} \]
      14. metadata-eval63.3%

        \[\leadsto x \cdot \left(\color{blue}{-3} + -1 \cdot \left(-6 \cdot z\right)\right) \]
      15. associate-*r*63.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{\left(-1 \cdot -6\right) \cdot z}\right) \]
      16. metadata-eval63.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{6} \cdot z\right) \]
      17. *-commutative63.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{z \cdot 6}\right) \]
    7. Simplified63.3%

      \[\leadsto \color{blue}{x \cdot \left(-3 + z \cdot 6\right)} \]
    8. Taylor expanded in z around 0 59.4%

      \[\leadsto \color{blue}{-3 \cdot x} \]
    9. Step-by-step derivation
      1. *-commutative59.4%

        \[\leadsto \color{blue}{x \cdot -3} \]
    10. Simplified59.4%

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

    if -1.8000000000000001e-184 < z < 3.2999999999999998e-214

    1. Initial program 99.2%

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

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified99.2%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 90.5%

      \[\leadsto \color{blue}{y \cdot \left(-6 \cdot \frac{x \cdot \left(0.6666666666666666 - z\right)}{y} + \left(6 \cdot \left(0.6666666666666666 - z\right) + \frac{x}{y}\right)\right)} \]
    6. Taylor expanded in x around 0 66.5%

      \[\leadsto y \cdot \color{blue}{\left(6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
    7. Taylor expanded in z around 0 66.5%

      \[\leadsto \color{blue}{4 \cdot y} \]
    8. Step-by-step derivation
      1. *-commutative66.5%

        \[\leadsto \color{blue}{y \cdot 4} \]
    9. Simplified66.5%

      \[\leadsto \color{blue}{y \cdot 4} \]
  3. Recombined 3 regimes into one program.
  4. Add Preprocessing

Alternative 8: 55.7% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -6.5 \cdot 10^{-11}:\\ \;\;\;\;6 \cdot \left(x \cdot z\right)\\ \mathbf{elif}\;x \leq 3.9 \cdot 10^{-33}:\\ \;\;\;\;6 \cdot \left(y \cdot \left(0.6666666666666666 - z\right)\right)\\ \mathbf{elif}\;x \leq 1.05 \cdot 10^{+83}:\\ \;\;\;\;x \cdot \left(z \cdot 6\right)\\ \mathbf{else}:\\ \;\;\;\;x \cdot -3\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (if (<= x -6.5e-11)
   (* 6.0 (* x z))
   (if (<= x 3.9e-33)
     (* 6.0 (* y (- 0.6666666666666666 z)))
     (if (<= x 1.05e+83) (* x (* z 6.0)) (* x -3.0)))))
double code(double x, double y, double z) {
	double tmp;
	if (x <= -6.5e-11) {
		tmp = 6.0 * (x * z);
	} else if (x <= 3.9e-33) {
		tmp = 6.0 * (y * (0.6666666666666666 - z));
	} else if (x <= 1.05e+83) {
		tmp = x * (z * 6.0);
	} else {
		tmp = x * -3.0;
	}
	return tmp;
}
real(8) function code(x, y, z)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8) :: tmp
    if (x <= (-6.5d-11)) then
        tmp = 6.0d0 * (x * z)
    else if (x <= 3.9d-33) then
        tmp = 6.0d0 * (y * (0.6666666666666666d0 - z))
    else if (x <= 1.05d+83) then
        tmp = x * (z * 6.0d0)
    else
        tmp = x * (-3.0d0)
    end if
    code = tmp
end function
public static double code(double x, double y, double z) {
	double tmp;
	if (x <= -6.5e-11) {
		tmp = 6.0 * (x * z);
	} else if (x <= 3.9e-33) {
		tmp = 6.0 * (y * (0.6666666666666666 - z));
	} else if (x <= 1.05e+83) {
		tmp = x * (z * 6.0);
	} else {
		tmp = x * -3.0;
	}
	return tmp;
}
def code(x, y, z):
	tmp = 0
	if x <= -6.5e-11:
		tmp = 6.0 * (x * z)
	elif x <= 3.9e-33:
		tmp = 6.0 * (y * (0.6666666666666666 - z))
	elif x <= 1.05e+83:
		tmp = x * (z * 6.0)
	else:
		tmp = x * -3.0
	return tmp
function code(x, y, z)
	tmp = 0.0
	if (x <= -6.5e-11)
		tmp = Float64(6.0 * Float64(x * z));
	elseif (x <= 3.9e-33)
		tmp = Float64(6.0 * Float64(y * Float64(0.6666666666666666 - z)));
	elseif (x <= 1.05e+83)
		tmp = Float64(x * Float64(z * 6.0));
	else
		tmp = Float64(x * -3.0);
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	tmp = 0.0;
	if (x <= -6.5e-11)
		tmp = 6.0 * (x * z);
	elseif (x <= 3.9e-33)
		tmp = 6.0 * (y * (0.6666666666666666 - z));
	elseif (x <= 1.05e+83)
		tmp = x * (z * 6.0);
	else
		tmp = x * -3.0;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := If[LessEqual[x, -6.5e-11], N[(6.0 * N[(x * z), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 3.9e-33], N[(6.0 * N[(y * N[(0.6666666666666666 - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 1.05e+83], N[(x * N[(z * 6.0), $MachinePrecision]), $MachinePrecision], N[(x * -3.0), $MachinePrecision]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq -6.5 \cdot 10^{-11}:\\
\;\;\;\;6 \cdot \left(x \cdot z\right)\\

\mathbf{elif}\;x \leq 3.9 \cdot 10^{-33}:\\
\;\;\;\;6 \cdot \left(y \cdot \left(0.6666666666666666 - z\right)\right)\\

\mathbf{elif}\;x \leq 1.05 \cdot 10^{+83}:\\
\;\;\;\;x \cdot \left(z \cdot 6\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if x < -6.49999999999999953e-11

    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 x around inf 74.3%

      \[\leadsto \color{blue}{x \cdot \left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
    6. Step-by-step derivation
      1. +-commutative74.3%

        \[\leadsto x \cdot \color{blue}{\left(-6 \cdot \left(0.6666666666666666 - z\right) + 1\right)} \]
      2. sub-neg74.3%

        \[\leadsto x \cdot \left(-6 \cdot \color{blue}{\left(0.6666666666666666 + \left(-z\right)\right)} + 1\right) \]
      3. distribute-rgt-in74.3%

        \[\leadsto x \cdot \left(\color{blue}{\left(0.6666666666666666 \cdot -6 + \left(-z\right) \cdot -6\right)} + 1\right) \]
      4. metadata-eval74.3%

        \[\leadsto x \cdot \left(\left(\color{blue}{-4} + \left(-z\right) \cdot -6\right) + 1\right) \]
      5. neg-mul-174.3%

        \[\leadsto x \cdot \left(\left(-4 + \color{blue}{\left(-1 \cdot z\right)} \cdot -6\right) + 1\right) \]
      6. associate-*r*74.3%

        \[\leadsto x \cdot \left(\left(-4 + \color{blue}{-1 \cdot \left(z \cdot -6\right)}\right) + 1\right) \]
      7. *-commutative74.3%

        \[\leadsto x \cdot \left(\left(-4 + -1 \cdot \color{blue}{\left(-6 \cdot z\right)}\right) + 1\right) \]
      8. metadata-eval74.3%

        \[\leadsto x \cdot \left(\left(\color{blue}{-1 \cdot 4} + -1 \cdot \left(-6 \cdot z\right)\right) + 1\right) \]
      9. distribute-lft-in74.3%

        \[\leadsto x \cdot \left(\color{blue}{-1 \cdot \left(4 + -6 \cdot z\right)} + 1\right) \]
      10. +-commutative74.3%

        \[\leadsto x \cdot \color{blue}{\left(1 + -1 \cdot \left(4 + -6 \cdot z\right)\right)} \]
      11. distribute-lft-in74.3%

        \[\leadsto x \cdot \left(1 + \color{blue}{\left(-1 \cdot 4 + -1 \cdot \left(-6 \cdot z\right)\right)}\right) \]
      12. metadata-eval74.3%

        \[\leadsto x \cdot \left(1 + \left(\color{blue}{-4} + -1 \cdot \left(-6 \cdot z\right)\right)\right) \]
      13. associate-+r+74.3%

        \[\leadsto x \cdot \color{blue}{\left(\left(1 + -4\right) + -1 \cdot \left(-6 \cdot z\right)\right)} \]
      14. metadata-eval74.3%

        \[\leadsto x \cdot \left(\color{blue}{-3} + -1 \cdot \left(-6 \cdot z\right)\right) \]
      15. associate-*r*74.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{\left(-1 \cdot -6\right) \cdot z}\right) \]
      16. metadata-eval74.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{6} \cdot z\right) \]
      17. *-commutative74.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{z \cdot 6}\right) \]
    7. Simplified74.3%

      \[\leadsto \color{blue}{x \cdot \left(-3 + z \cdot 6\right)} \]
    8. Taylor expanded in z around inf 46.8%

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

    if -6.49999999999999953e-11 < x < 3.89999999999999974e-33

    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 y around inf 98.8%

      \[\leadsto \color{blue}{y \cdot \left(-6 \cdot \frac{x \cdot \left(0.6666666666666666 - z\right)}{y} + \left(6 \cdot \left(0.6666666666666666 - z\right) + \frac{x}{y}\right)\right)} \]
    6. Step-by-step derivation
      1. associate-*r/98.8%

        \[\leadsto y \cdot \left(\color{blue}{\frac{-6 \cdot \left(x \cdot \left(0.6666666666666666 - z\right)\right)}{y}} + \left(6 \cdot \left(0.6666666666666666 - z\right) + \frac{x}{y}\right)\right) \]
      2. clear-num98.8%

        \[\leadsto y \cdot \left(\color{blue}{\frac{1}{\frac{y}{-6 \cdot \left(x \cdot \left(0.6666666666666666 - z\right)\right)}}} + \left(6 \cdot \left(0.6666666666666666 - z\right) + \frac{x}{y}\right)\right) \]
    7. Applied egg-rr98.8%

      \[\leadsto y \cdot \left(\color{blue}{\frac{1}{\frac{y}{-6 \cdot \left(x \cdot \left(0.6666666666666666 - z\right)\right)}}} + \left(6 \cdot \left(0.6666666666666666 - z\right) + \frac{x}{y}\right)\right) \]
    8. Taylor expanded in y around inf 75.8%

      \[\leadsto \color{blue}{6 \cdot \left(y \cdot \left(0.6666666666666666 - z\right)\right)} \]

    if 3.89999999999999974e-33 < x < 1.05000000000000001e83

    1. Initial program 99.2%

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

        \[\leadsto x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\color{blue}{0.6666666666666666} - z\right) \]
    3. Simplified99.2%

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 78.7%

      \[\leadsto \color{blue}{x \cdot \left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
    6. Step-by-step derivation
      1. +-commutative78.7%

        \[\leadsto x \cdot \color{blue}{\left(-6 \cdot \left(0.6666666666666666 - z\right) + 1\right)} \]
      2. sub-neg78.7%

        \[\leadsto x \cdot \left(-6 \cdot \color{blue}{\left(0.6666666666666666 + \left(-z\right)\right)} + 1\right) \]
      3. distribute-rgt-in78.6%

        \[\leadsto x \cdot \left(\color{blue}{\left(0.6666666666666666 \cdot -6 + \left(-z\right) \cdot -6\right)} + 1\right) \]
      4. metadata-eval78.6%

        \[\leadsto x \cdot \left(\left(\color{blue}{-4} + \left(-z\right) \cdot -6\right) + 1\right) \]
      5. neg-mul-178.6%

        \[\leadsto x \cdot \left(\left(-4 + \color{blue}{\left(-1 \cdot z\right)} \cdot -6\right) + 1\right) \]
      6. associate-*r*78.6%

        \[\leadsto x \cdot \left(\left(-4 + \color{blue}{-1 \cdot \left(z \cdot -6\right)}\right) + 1\right) \]
      7. *-commutative78.6%

        \[\leadsto x \cdot \left(\left(-4 + -1 \cdot \color{blue}{\left(-6 \cdot z\right)}\right) + 1\right) \]
      8. metadata-eval78.6%

        \[\leadsto x \cdot \left(\left(\color{blue}{-1 \cdot 4} + -1 \cdot \left(-6 \cdot z\right)\right) + 1\right) \]
      9. distribute-lft-in78.6%

        \[\leadsto x \cdot \left(\color{blue}{-1 \cdot \left(4 + -6 \cdot z\right)} + 1\right) \]
      10. +-commutative78.6%

        \[\leadsto x \cdot \color{blue}{\left(1 + -1 \cdot \left(4 + -6 \cdot z\right)\right)} \]
      11. distribute-lft-in78.6%

        \[\leadsto x \cdot \left(1 + \color{blue}{\left(-1 \cdot 4 + -1 \cdot \left(-6 \cdot z\right)\right)}\right) \]
      12. metadata-eval78.6%

        \[\leadsto x \cdot \left(1 + \left(\color{blue}{-4} + -1 \cdot \left(-6 \cdot z\right)\right)\right) \]
      13. associate-+r+78.6%

        \[\leadsto x \cdot \color{blue}{\left(\left(1 + -4\right) + -1 \cdot \left(-6 \cdot z\right)\right)} \]
      14. metadata-eval78.6%

        \[\leadsto x \cdot \left(\color{blue}{-3} + -1 \cdot \left(-6 \cdot z\right)\right) \]
      15. associate-*r*78.6%

        \[\leadsto x \cdot \left(-3 + \color{blue}{\left(-1 \cdot -6\right) \cdot z}\right) \]
      16. metadata-eval78.6%

        \[\leadsto x \cdot \left(-3 + \color{blue}{6} \cdot z\right) \]
      17. *-commutative78.6%

        \[\leadsto x \cdot \left(-3 + \color{blue}{z \cdot 6}\right) \]
    7. Simplified78.6%

      \[\leadsto \color{blue}{x \cdot \left(-3 + z \cdot 6\right)} \]
    8. Taylor expanded in z around inf 53.8%

      \[\leadsto \color{blue}{6 \cdot \left(x \cdot z\right)} \]
    9. Step-by-step derivation
      1. associate-*r*53.7%

        \[\leadsto \color{blue}{\left(6 \cdot x\right) \cdot z} \]
      2. *-commutative53.7%

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

        \[\leadsto \color{blue}{x \cdot \left(6 \cdot z\right)} \]
    10. Simplified53.8%

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

    if 1.05000000000000001e83 < x

    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 x around inf 88.4%

      \[\leadsto \color{blue}{x \cdot \left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
    6. Step-by-step derivation
      1. +-commutative88.4%

        \[\leadsto x \cdot \color{blue}{\left(-6 \cdot \left(0.6666666666666666 - z\right) + 1\right)} \]
      2. sub-neg88.4%

        \[\leadsto x \cdot \left(-6 \cdot \color{blue}{\left(0.6666666666666666 + \left(-z\right)\right)} + 1\right) \]
      3. distribute-rgt-in88.5%

        \[\leadsto x \cdot \left(\color{blue}{\left(0.6666666666666666 \cdot -6 + \left(-z\right) \cdot -6\right)} + 1\right) \]
      4. metadata-eval88.5%

        \[\leadsto x \cdot \left(\left(\color{blue}{-4} + \left(-z\right) \cdot -6\right) + 1\right) \]
      5. neg-mul-188.5%

        \[\leadsto x \cdot \left(\left(-4 + \color{blue}{\left(-1 \cdot z\right)} \cdot -6\right) + 1\right) \]
      6. associate-*r*88.5%

        \[\leadsto x \cdot \left(\left(-4 + \color{blue}{-1 \cdot \left(z \cdot -6\right)}\right) + 1\right) \]
      7. *-commutative88.5%

        \[\leadsto x \cdot \left(\left(-4 + -1 \cdot \color{blue}{\left(-6 \cdot z\right)}\right) + 1\right) \]
      8. metadata-eval88.5%

        \[\leadsto x \cdot \left(\left(\color{blue}{-1 \cdot 4} + -1 \cdot \left(-6 \cdot z\right)\right) + 1\right) \]
      9. distribute-lft-in88.5%

        \[\leadsto x \cdot \left(\color{blue}{-1 \cdot \left(4 + -6 \cdot z\right)} + 1\right) \]
      10. +-commutative88.5%

        \[\leadsto x \cdot \color{blue}{\left(1 + -1 \cdot \left(4 + -6 \cdot z\right)\right)} \]
      11. distribute-lft-in88.5%

        \[\leadsto x \cdot \left(1 + \color{blue}{\left(-1 \cdot 4 + -1 \cdot \left(-6 \cdot z\right)\right)}\right) \]
      12. metadata-eval88.5%

        \[\leadsto x \cdot \left(1 + \left(\color{blue}{-4} + -1 \cdot \left(-6 \cdot z\right)\right)\right) \]
      13. associate-+r+88.5%

        \[\leadsto x \cdot \color{blue}{\left(\left(1 + -4\right) + -1 \cdot \left(-6 \cdot z\right)\right)} \]
      14. metadata-eval88.5%

        \[\leadsto x \cdot \left(\color{blue}{-3} + -1 \cdot \left(-6 \cdot z\right)\right) \]
      15. associate-*r*88.5%

        \[\leadsto x \cdot \left(-3 + \color{blue}{\left(-1 \cdot -6\right) \cdot z}\right) \]
      16. metadata-eval88.5%

        \[\leadsto x \cdot \left(-3 + \color{blue}{6} \cdot z\right) \]
      17. *-commutative88.5%

        \[\leadsto x \cdot \left(-3 + \color{blue}{z \cdot 6}\right) \]
    7. Simplified88.5%

      \[\leadsto \color{blue}{x \cdot \left(-3 + z \cdot 6\right)} \]
    8. Taylor expanded in z around 0 51.1%

      \[\leadsto \color{blue}{-3 \cdot x} \]
    9. Step-by-step derivation
      1. *-commutative51.1%

        \[\leadsto \color{blue}{x \cdot -3} \]
    10. Simplified51.1%

      \[\leadsto \color{blue}{x \cdot -3} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification62.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -6.5 \cdot 10^{-11}:\\ \;\;\;\;6 \cdot \left(x \cdot z\right)\\ \mathbf{elif}\;x \leq 3.9 \cdot 10^{-33}:\\ \;\;\;\;6 \cdot \left(y \cdot \left(0.6666666666666666 - z\right)\right)\\ \mathbf{elif}\;x \leq 1.05 \cdot 10^{+83}:\\ \;\;\;\;x \cdot \left(z \cdot 6\right)\\ \mathbf{else}:\\ \;\;\;\;x \cdot -3\\ \end{array} \]
  5. Add Preprocessing

Alternative 9: 97.6% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -0.66 \lor \neg \left(z \leq 0.65\right):\\ \;\;\;\;x + -6 \cdot \left(\left(y - x\right) \cdot z\right)\\ \mathbf{else}:\\ \;\;\;\;x + \left(y - x\right) \cdot 4\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (if (or (<= z -0.66) (not (<= z 0.65)))
   (+ x (* -6.0 (* (- y x) z)))
   (+ x (* (- y x) 4.0))))
double code(double x, double y, double z) {
	double tmp;
	if ((z <= -0.66) || !(z <= 0.65)) {
		tmp = x + (-6.0 * ((y - x) * z));
	} else {
		tmp = x + ((y - x) * 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 ((z <= (-0.66d0)) .or. (.not. (z <= 0.65d0))) then
        tmp = x + ((-6.0d0) * ((y - x) * z))
    else
        tmp = x + ((y - x) * 4.0d0)
    end if
    code = tmp
end function
public static double code(double x, double y, double z) {
	double tmp;
	if ((z <= -0.66) || !(z <= 0.65)) {
		tmp = x + (-6.0 * ((y - x) * z));
	} else {
		tmp = x + ((y - x) * 4.0);
	}
	return tmp;
}
def code(x, y, z):
	tmp = 0
	if (z <= -0.66) or not (z <= 0.65):
		tmp = x + (-6.0 * ((y - x) * z))
	else:
		tmp = x + ((y - x) * 4.0)
	return tmp
function code(x, y, z)
	tmp = 0.0
	if ((z <= -0.66) || !(z <= 0.65))
		tmp = Float64(x + Float64(-6.0 * Float64(Float64(y - x) * z)));
	else
		tmp = Float64(x + Float64(Float64(y - x) * 4.0));
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	tmp = 0.0;
	if ((z <= -0.66) || ~((z <= 0.65)))
		tmp = x + (-6.0 * ((y - x) * z));
	else
		tmp = x + ((y - x) * 4.0);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := If[Or[LessEqual[z, -0.66], N[Not[LessEqual[z, 0.65]], $MachinePrecision]], N[(x + N[(-6.0 * N[(N[(y - x), $MachinePrecision] * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + N[(N[(y - x), $MachinePrecision] * 4.0), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -0.66 \lor \neg \left(z \leq 0.65\right):\\
\;\;\;\;x + -6 \cdot \left(\left(y - x\right) \cdot z\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -0.660000000000000031 or 0.650000000000000022 < z

    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 96.1%

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

    if -0.660000000000000031 < z < 0.650000000000000022

    1. Initial program 99.3%

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

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

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 97.4%

      \[\leadsto x + \color{blue}{4 \cdot \left(y - x\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification96.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -0.66 \lor \neg \left(z \leq 0.65\right):\\ \;\;\;\;x + -6 \cdot \left(\left(y - x\right) \cdot z\right)\\ \mathbf{else}:\\ \;\;\;\;x + \left(y - x\right) \cdot 4\\ \end{array} \]
  5. Add Preprocessing

Alternative 10: 97.6% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -0.56 \lor \neg \left(z \leq 0.68\right):\\ \;\;\;\;z \cdot \left(y \cdot -6 + x \cdot 6\right)\\ \mathbf{else}:\\ \;\;\;\;x + \left(y - x\right) \cdot 4\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (if (or (<= z -0.56) (not (<= z 0.68)))
   (* z (+ (* y -6.0) (* x 6.0)))
   (+ x (* (- y x) 4.0))))
double code(double x, double y, double z) {
	double tmp;
	if ((z <= -0.56) || !(z <= 0.68)) {
		tmp = z * ((y * -6.0) + (x * 6.0));
	} else {
		tmp = x + ((y - x) * 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 ((z <= (-0.56d0)) .or. (.not. (z <= 0.68d0))) then
        tmp = z * ((y * (-6.0d0)) + (x * 6.0d0))
    else
        tmp = x + ((y - x) * 4.0d0)
    end if
    code = tmp
end function
public static double code(double x, double y, double z) {
	double tmp;
	if ((z <= -0.56) || !(z <= 0.68)) {
		tmp = z * ((y * -6.0) + (x * 6.0));
	} else {
		tmp = x + ((y - x) * 4.0);
	}
	return tmp;
}
def code(x, y, z):
	tmp = 0
	if (z <= -0.56) or not (z <= 0.68):
		tmp = z * ((y * -6.0) + (x * 6.0))
	else:
		tmp = x + ((y - x) * 4.0)
	return tmp
function code(x, y, z)
	tmp = 0.0
	if ((z <= -0.56) || !(z <= 0.68))
		tmp = Float64(z * Float64(Float64(y * -6.0) + Float64(x * 6.0)));
	else
		tmp = Float64(x + Float64(Float64(y - x) * 4.0));
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	tmp = 0.0;
	if ((z <= -0.56) || ~((z <= 0.68)))
		tmp = z * ((y * -6.0) + (x * 6.0));
	else
		tmp = x + ((y - x) * 4.0);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := If[Or[LessEqual[z, -0.56], N[Not[LessEqual[z, 0.68]], $MachinePrecision]], N[(z * N[(N[(y * -6.0), $MachinePrecision] + N[(x * 6.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + N[(N[(y - x), $MachinePrecision] * 4.0), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -0.56 \lor \neg \left(z \leq 0.68\right):\\
\;\;\;\;z \cdot \left(y \cdot -6 + x \cdot 6\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -0.56000000000000005 or 0.680000000000000049 < z

    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 0 95.9%

      \[\leadsto \color{blue}{6 \cdot \left(y \cdot \left(0.6666666666666666 - z\right)\right) + x \cdot \left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
    6. Step-by-step derivation
      1. fma-define95.9%

        \[\leadsto \color{blue}{\mathsf{fma}\left(6, y \cdot \left(0.6666666666666666 - z\right), x \cdot \left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)\right)} \]
      2. *-commutative95.9%

        \[\leadsto \mathsf{fma}\left(6, \color{blue}{\left(0.6666666666666666 - z\right) \cdot y}, x \cdot \left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)\right) \]
      3. +-commutative95.9%

        \[\leadsto \mathsf{fma}\left(6, \left(0.6666666666666666 - z\right) \cdot y, x \cdot \color{blue}{\left(-6 \cdot \left(0.6666666666666666 - z\right) + 1\right)}\right) \]
    7. Simplified95.9%

      \[\leadsto \color{blue}{\mathsf{fma}\left(6, \left(0.6666666666666666 - z\right) \cdot y, x \cdot \left(-6 \cdot \left(0.6666666666666666 - z\right) + 1\right)\right)} \]
    8. Taylor expanded in z around inf 96.1%

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

    if -0.56000000000000005 < z < 0.680000000000000049

    1. Initial program 99.3%

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

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

      \[\leadsto \color{blue}{x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(0.6666666666666666 - z\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 97.4%

      \[\leadsto x + \color{blue}{4 \cdot \left(y - x\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification96.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -0.56 \lor \neg \left(z \leq 0.68\right):\\ \;\;\;\;z \cdot \left(y \cdot -6 + x \cdot 6\right)\\ \mathbf{else}:\\ \;\;\;\;x + \left(y - x\right) \cdot 4\\ \end{array} \]
  5. Add Preprocessing

Alternative 11: 75.5% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -7.5 \cdot 10^{-41} \lor \neg \left(x \leq 3.75 \cdot 10^{-34}\right):\\ \;\;\;\;x \cdot \left(-3 + z \cdot 6\right)\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(6 \cdot \left(0.6666666666666666 - z\right)\right)\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (if (or (<= x -7.5e-41) (not (<= x 3.75e-34)))
   (* x (+ -3.0 (* z 6.0)))
   (* y (* 6.0 (- 0.6666666666666666 z)))))
double code(double x, double y, double z) {
	double tmp;
	if ((x <= -7.5e-41) || !(x <= 3.75e-34)) {
		tmp = x * (-3.0 + (z * 6.0));
	} else {
		tmp = y * (6.0 * (0.6666666666666666 - 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 ((x <= (-7.5d-41)) .or. (.not. (x <= 3.75d-34))) then
        tmp = x * ((-3.0d0) + (z * 6.0d0))
    else
        tmp = y * (6.0d0 * (0.6666666666666666d0 - z))
    end if
    code = tmp
end function
public static double code(double x, double y, double z) {
	double tmp;
	if ((x <= -7.5e-41) || !(x <= 3.75e-34)) {
		tmp = x * (-3.0 + (z * 6.0));
	} else {
		tmp = y * (6.0 * (0.6666666666666666 - z));
	}
	return tmp;
}
def code(x, y, z):
	tmp = 0
	if (x <= -7.5e-41) or not (x <= 3.75e-34):
		tmp = x * (-3.0 + (z * 6.0))
	else:
		tmp = y * (6.0 * (0.6666666666666666 - z))
	return tmp
function code(x, y, z)
	tmp = 0.0
	if ((x <= -7.5e-41) || !(x <= 3.75e-34))
		tmp = Float64(x * Float64(-3.0 + Float64(z * 6.0)));
	else
		tmp = Float64(y * Float64(6.0 * Float64(0.6666666666666666 - z)));
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	tmp = 0.0;
	if ((x <= -7.5e-41) || ~((x <= 3.75e-34)))
		tmp = x * (-3.0 + (z * 6.0));
	else
		tmp = y * (6.0 * (0.6666666666666666 - z));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := If[Or[LessEqual[x, -7.5e-41], N[Not[LessEqual[x, 3.75e-34]], $MachinePrecision]], N[(x * N[(-3.0 + N[(z * 6.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(y * N[(6.0 * N[(0.6666666666666666 - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq -7.5 \cdot 10^{-41} \lor \neg \left(x \leq 3.75 \cdot 10^{-34}\right):\\
\;\;\;\;x \cdot \left(-3 + z \cdot 6\right)\\

\mathbf{else}:\\
\;\;\;\;y \cdot \left(6 \cdot \left(0.6666666666666666 - z\right)\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < -7.50000000000000049e-41 or 3.7500000000000002e-34 < x

    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 x around inf 79.1%

      \[\leadsto \color{blue}{x \cdot \left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
    6. Step-by-step derivation
      1. +-commutative79.1%

        \[\leadsto x \cdot \color{blue}{\left(-6 \cdot \left(0.6666666666666666 - z\right) + 1\right)} \]
      2. sub-neg79.1%

        \[\leadsto x \cdot \left(-6 \cdot \color{blue}{\left(0.6666666666666666 + \left(-z\right)\right)} + 1\right) \]
      3. distribute-rgt-in79.1%

        \[\leadsto x \cdot \left(\color{blue}{\left(0.6666666666666666 \cdot -6 + \left(-z\right) \cdot -6\right)} + 1\right) \]
      4. metadata-eval79.1%

        \[\leadsto x \cdot \left(\left(\color{blue}{-4} + \left(-z\right) \cdot -6\right) + 1\right) \]
      5. neg-mul-179.1%

        \[\leadsto x \cdot \left(\left(-4 + \color{blue}{\left(-1 \cdot z\right)} \cdot -6\right) + 1\right) \]
      6. associate-*r*79.1%

        \[\leadsto x \cdot \left(\left(-4 + \color{blue}{-1 \cdot \left(z \cdot -6\right)}\right) + 1\right) \]
      7. *-commutative79.1%

        \[\leadsto x \cdot \left(\left(-4 + -1 \cdot \color{blue}{\left(-6 \cdot z\right)}\right) + 1\right) \]
      8. metadata-eval79.1%

        \[\leadsto x \cdot \left(\left(\color{blue}{-1 \cdot 4} + -1 \cdot \left(-6 \cdot z\right)\right) + 1\right) \]
      9. distribute-lft-in79.1%

        \[\leadsto x \cdot \left(\color{blue}{-1 \cdot \left(4 + -6 \cdot z\right)} + 1\right) \]
      10. +-commutative79.1%

        \[\leadsto x \cdot \color{blue}{\left(1 + -1 \cdot \left(4 + -6 \cdot z\right)\right)} \]
      11. distribute-lft-in79.1%

        \[\leadsto x \cdot \left(1 + \color{blue}{\left(-1 \cdot 4 + -1 \cdot \left(-6 \cdot z\right)\right)}\right) \]
      12. metadata-eval79.1%

        \[\leadsto x \cdot \left(1 + \left(\color{blue}{-4} + -1 \cdot \left(-6 \cdot z\right)\right)\right) \]
      13. associate-+r+79.1%

        \[\leadsto x \cdot \color{blue}{\left(\left(1 + -4\right) + -1 \cdot \left(-6 \cdot z\right)\right)} \]
      14. metadata-eval79.1%

        \[\leadsto x \cdot \left(\color{blue}{-3} + -1 \cdot \left(-6 \cdot z\right)\right) \]
      15. associate-*r*79.1%

        \[\leadsto x \cdot \left(-3 + \color{blue}{\left(-1 \cdot -6\right) \cdot z}\right) \]
      16. metadata-eval79.1%

        \[\leadsto x \cdot \left(-3 + \color{blue}{6} \cdot z\right) \]
      17. *-commutative79.1%

        \[\leadsto x \cdot \left(-3 + \color{blue}{z \cdot 6}\right) \]
    7. Simplified79.1%

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

    if -7.50000000000000049e-41 < x < 3.7500000000000002e-34

    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 y around inf 98.8%

      \[\leadsto \color{blue}{y \cdot \left(-6 \cdot \frac{x \cdot \left(0.6666666666666666 - z\right)}{y} + \left(6 \cdot \left(0.6666666666666666 - z\right) + \frac{x}{y}\right)\right)} \]
    6. Taylor expanded in x around 0 78.1%

      \[\leadsto y \cdot \color{blue}{\left(6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification78.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -7.5 \cdot 10^{-41} \lor \neg \left(x \leq 3.75 \cdot 10^{-34}\right):\\ \;\;\;\;x \cdot \left(-3 + z \cdot 6\right)\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(6 \cdot \left(0.6666666666666666 - z\right)\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 12: 75.4% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -1.45 \cdot 10^{-40} \lor \neg \left(x \leq 3.15 \cdot 10^{-35}\right):\\ \;\;\;\;x \cdot \left(-3 + z \cdot 6\right)\\ \mathbf{else}:\\ \;\;\;\;6 \cdot \left(y \cdot \left(0.6666666666666666 - z\right)\right)\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (if (or (<= x -1.45e-40) (not (<= x 3.15e-35)))
   (* x (+ -3.0 (* z 6.0)))
   (* 6.0 (* y (- 0.6666666666666666 z)))))
double code(double x, double y, double z) {
	double tmp;
	if ((x <= -1.45e-40) || !(x <= 3.15e-35)) {
		tmp = x * (-3.0 + (z * 6.0));
	} else {
		tmp = 6.0 * (y * (0.6666666666666666 - 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 ((x <= (-1.45d-40)) .or. (.not. (x <= 3.15d-35))) then
        tmp = x * ((-3.0d0) + (z * 6.0d0))
    else
        tmp = 6.0d0 * (y * (0.6666666666666666d0 - z))
    end if
    code = tmp
end function
public static double code(double x, double y, double z) {
	double tmp;
	if ((x <= -1.45e-40) || !(x <= 3.15e-35)) {
		tmp = x * (-3.0 + (z * 6.0));
	} else {
		tmp = 6.0 * (y * (0.6666666666666666 - z));
	}
	return tmp;
}
def code(x, y, z):
	tmp = 0
	if (x <= -1.45e-40) or not (x <= 3.15e-35):
		tmp = x * (-3.0 + (z * 6.0))
	else:
		tmp = 6.0 * (y * (0.6666666666666666 - z))
	return tmp
function code(x, y, z)
	tmp = 0.0
	if ((x <= -1.45e-40) || !(x <= 3.15e-35))
		tmp = Float64(x * Float64(-3.0 + Float64(z * 6.0)));
	else
		tmp = Float64(6.0 * Float64(y * Float64(0.6666666666666666 - z)));
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	tmp = 0.0;
	if ((x <= -1.45e-40) || ~((x <= 3.15e-35)))
		tmp = x * (-3.0 + (z * 6.0));
	else
		tmp = 6.0 * (y * (0.6666666666666666 - z));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := If[Or[LessEqual[x, -1.45e-40], N[Not[LessEqual[x, 3.15e-35]], $MachinePrecision]], N[(x * N[(-3.0 + N[(z * 6.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(6.0 * N[(y * N[(0.6666666666666666 - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq -1.45 \cdot 10^{-40} \lor \neg \left(x \leq 3.15 \cdot 10^{-35}\right):\\
\;\;\;\;x \cdot \left(-3 + z \cdot 6\right)\\

\mathbf{else}:\\
\;\;\;\;6 \cdot \left(y \cdot \left(0.6666666666666666 - z\right)\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < -1.4499999999999999e-40 or 3.15000000000000023e-35 < x

    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 x around inf 79.1%

      \[\leadsto \color{blue}{x \cdot \left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
    6. Step-by-step derivation
      1. +-commutative79.1%

        \[\leadsto x \cdot \color{blue}{\left(-6 \cdot \left(0.6666666666666666 - z\right) + 1\right)} \]
      2. sub-neg79.1%

        \[\leadsto x \cdot \left(-6 \cdot \color{blue}{\left(0.6666666666666666 + \left(-z\right)\right)} + 1\right) \]
      3. distribute-rgt-in79.1%

        \[\leadsto x \cdot \left(\color{blue}{\left(0.6666666666666666 \cdot -6 + \left(-z\right) \cdot -6\right)} + 1\right) \]
      4. metadata-eval79.1%

        \[\leadsto x \cdot \left(\left(\color{blue}{-4} + \left(-z\right) \cdot -6\right) + 1\right) \]
      5. neg-mul-179.1%

        \[\leadsto x \cdot \left(\left(-4 + \color{blue}{\left(-1 \cdot z\right)} \cdot -6\right) + 1\right) \]
      6. associate-*r*79.1%

        \[\leadsto x \cdot \left(\left(-4 + \color{blue}{-1 \cdot \left(z \cdot -6\right)}\right) + 1\right) \]
      7. *-commutative79.1%

        \[\leadsto x \cdot \left(\left(-4 + -1 \cdot \color{blue}{\left(-6 \cdot z\right)}\right) + 1\right) \]
      8. metadata-eval79.1%

        \[\leadsto x \cdot \left(\left(\color{blue}{-1 \cdot 4} + -1 \cdot \left(-6 \cdot z\right)\right) + 1\right) \]
      9. distribute-lft-in79.1%

        \[\leadsto x \cdot \left(\color{blue}{-1 \cdot \left(4 + -6 \cdot z\right)} + 1\right) \]
      10. +-commutative79.1%

        \[\leadsto x \cdot \color{blue}{\left(1 + -1 \cdot \left(4 + -6 \cdot z\right)\right)} \]
      11. distribute-lft-in79.1%

        \[\leadsto x \cdot \left(1 + \color{blue}{\left(-1 \cdot 4 + -1 \cdot \left(-6 \cdot z\right)\right)}\right) \]
      12. metadata-eval79.1%

        \[\leadsto x \cdot \left(1 + \left(\color{blue}{-4} + -1 \cdot \left(-6 \cdot z\right)\right)\right) \]
      13. associate-+r+79.1%

        \[\leadsto x \cdot \color{blue}{\left(\left(1 + -4\right) + -1 \cdot \left(-6 \cdot z\right)\right)} \]
      14. metadata-eval79.1%

        \[\leadsto x \cdot \left(\color{blue}{-3} + -1 \cdot \left(-6 \cdot z\right)\right) \]
      15. associate-*r*79.1%

        \[\leadsto x \cdot \left(-3 + \color{blue}{\left(-1 \cdot -6\right) \cdot z}\right) \]
      16. metadata-eval79.1%

        \[\leadsto x \cdot \left(-3 + \color{blue}{6} \cdot z\right) \]
      17. *-commutative79.1%

        \[\leadsto x \cdot \left(-3 + \color{blue}{z \cdot 6}\right) \]
    7. Simplified79.1%

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

    if -1.4499999999999999e-40 < x < 3.15000000000000023e-35

    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 y around inf 98.8%

      \[\leadsto \color{blue}{y \cdot \left(-6 \cdot \frac{x \cdot \left(0.6666666666666666 - z\right)}{y} + \left(6 \cdot \left(0.6666666666666666 - z\right) + \frac{x}{y}\right)\right)} \]
    6. Step-by-step derivation
      1. associate-*r/98.8%

        \[\leadsto y \cdot \left(\color{blue}{\frac{-6 \cdot \left(x \cdot \left(0.6666666666666666 - z\right)\right)}{y}} + \left(6 \cdot \left(0.6666666666666666 - z\right) + \frac{x}{y}\right)\right) \]
      2. clear-num98.7%

        \[\leadsto y \cdot \left(\color{blue}{\frac{1}{\frac{y}{-6 \cdot \left(x \cdot \left(0.6666666666666666 - z\right)\right)}}} + \left(6 \cdot \left(0.6666666666666666 - z\right) + \frac{x}{y}\right)\right) \]
    7. Applied egg-rr98.7%

      \[\leadsto y \cdot \left(\color{blue}{\frac{1}{\frac{y}{-6 \cdot \left(x \cdot \left(0.6666666666666666 - z\right)\right)}}} + \left(6 \cdot \left(0.6666666666666666 - z\right) + \frac{x}{y}\right)\right) \]
    8. Taylor expanded in y around inf 78.1%

      \[\leadsto \color{blue}{6 \cdot \left(y \cdot \left(0.6666666666666666 - z\right)\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification78.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -1.45 \cdot 10^{-40} \lor \neg \left(x \leq 3.15 \cdot 10^{-35}\right):\\ \;\;\;\;x \cdot \left(-3 + z \cdot 6\right)\\ \mathbf{else}:\\ \;\;\;\;6 \cdot \left(y \cdot \left(0.6666666666666666 - z\right)\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 13: 37.0% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -1.2 \cdot 10^{+42} \lor \neg \left(x \leq 25000000000\right):\\ \;\;\;\;x \cdot -3\\ \mathbf{else}:\\ \;\;\;\;y \cdot 4\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (if (or (<= x -1.2e+42) (not (<= x 25000000000.0))) (* x -3.0) (* y 4.0)))
double code(double x, double y, double z) {
	double tmp;
	if ((x <= -1.2e+42) || !(x <= 25000000000.0)) {
		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 <= (-1.2d+42)) .or. (.not. (x <= 25000000000.0d0))) 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 <= -1.2e+42) || !(x <= 25000000000.0)) {
		tmp = x * -3.0;
	} else {
		tmp = y * 4.0;
	}
	return tmp;
}
def code(x, y, z):
	tmp = 0
	if (x <= -1.2e+42) or not (x <= 25000000000.0):
		tmp = x * -3.0
	else:
		tmp = y * 4.0
	return tmp
function code(x, y, z)
	tmp = 0.0
	if ((x <= -1.2e+42) || !(x <= 25000000000.0))
		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 <= -1.2e+42) || ~((x <= 25000000000.0)))
		tmp = x * -3.0;
	else
		tmp = y * 4.0;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := If[Or[LessEqual[x, -1.2e+42], N[Not[LessEqual[x, 25000000000.0]], $MachinePrecision]], N[(x * -3.0), $MachinePrecision], N[(y * 4.0), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq -1.2 \cdot 10^{+42} \lor \neg \left(x \leq 25000000000\right):\\
\;\;\;\;x \cdot -3\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < -1.1999999999999999e42 or 2.5e10 < x

    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 x around inf 81.3%

      \[\leadsto \color{blue}{x \cdot \left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
    6. Step-by-step derivation
      1. +-commutative81.3%

        \[\leadsto x \cdot \color{blue}{\left(-6 \cdot \left(0.6666666666666666 - z\right) + 1\right)} \]
      2. sub-neg81.3%

        \[\leadsto x \cdot \left(-6 \cdot \color{blue}{\left(0.6666666666666666 + \left(-z\right)\right)} + 1\right) \]
      3. distribute-rgt-in81.3%

        \[\leadsto x \cdot \left(\color{blue}{\left(0.6666666666666666 \cdot -6 + \left(-z\right) \cdot -6\right)} + 1\right) \]
      4. metadata-eval81.3%

        \[\leadsto x \cdot \left(\left(\color{blue}{-4} + \left(-z\right) \cdot -6\right) + 1\right) \]
      5. neg-mul-181.3%

        \[\leadsto x \cdot \left(\left(-4 + \color{blue}{\left(-1 \cdot z\right)} \cdot -6\right) + 1\right) \]
      6. associate-*r*81.3%

        \[\leadsto x \cdot \left(\left(-4 + \color{blue}{-1 \cdot \left(z \cdot -6\right)}\right) + 1\right) \]
      7. *-commutative81.3%

        \[\leadsto x \cdot \left(\left(-4 + -1 \cdot \color{blue}{\left(-6 \cdot z\right)}\right) + 1\right) \]
      8. metadata-eval81.3%

        \[\leadsto x \cdot \left(\left(\color{blue}{-1 \cdot 4} + -1 \cdot \left(-6 \cdot z\right)\right) + 1\right) \]
      9. distribute-lft-in81.3%

        \[\leadsto x \cdot \left(\color{blue}{-1 \cdot \left(4 + -6 \cdot z\right)} + 1\right) \]
      10. +-commutative81.3%

        \[\leadsto x \cdot \color{blue}{\left(1 + -1 \cdot \left(4 + -6 \cdot z\right)\right)} \]
      11. distribute-lft-in81.3%

        \[\leadsto x \cdot \left(1 + \color{blue}{\left(-1 \cdot 4 + -1 \cdot \left(-6 \cdot z\right)\right)}\right) \]
      12. metadata-eval81.3%

        \[\leadsto x \cdot \left(1 + \left(\color{blue}{-4} + -1 \cdot \left(-6 \cdot z\right)\right)\right) \]
      13. associate-+r+81.3%

        \[\leadsto x \cdot \color{blue}{\left(\left(1 + -4\right) + -1 \cdot \left(-6 \cdot z\right)\right)} \]
      14. metadata-eval81.3%

        \[\leadsto x \cdot \left(\color{blue}{-3} + -1 \cdot \left(-6 \cdot z\right)\right) \]
      15. associate-*r*81.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{\left(-1 \cdot -6\right) \cdot z}\right) \]
      16. metadata-eval81.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{6} \cdot z\right) \]
      17. *-commutative81.3%

        \[\leadsto x \cdot \left(-3 + \color{blue}{z \cdot 6}\right) \]
    7. Simplified81.3%

      \[\leadsto \color{blue}{x \cdot \left(-3 + z \cdot 6\right)} \]
    8. Taylor expanded in z around 0 41.3%

      \[\leadsto \color{blue}{-3 \cdot x} \]
    9. Step-by-step derivation
      1. *-commutative41.3%

        \[\leadsto \color{blue}{x \cdot -3} \]
    10. Simplified41.3%

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

    if -1.1999999999999999e42 < x < 2.5e10

    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 y around inf 97.5%

      \[\leadsto \color{blue}{y \cdot \left(-6 \cdot \frac{x \cdot \left(0.6666666666666666 - z\right)}{y} + \left(6 \cdot \left(0.6666666666666666 - z\right) + \frac{x}{y}\right)\right)} \]
    6. Taylor expanded in x around 0 70.2%

      \[\leadsto y \cdot \color{blue}{\left(6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
    7. Taylor expanded in z around 0 34.0%

      \[\leadsto \color{blue}{4 \cdot y} \]
    8. Step-by-step derivation
      1. *-commutative34.0%

        \[\leadsto \color{blue}{y \cdot 4} \]
    9. Simplified34.0%

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

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -1.2 \cdot 10^{+42} \lor \neg \left(x \leq 25000000000\right):\\ \;\;\;\;x \cdot -3\\ \mathbf{else}:\\ \;\;\;\;y \cdot 4\\ \end{array} \]
  5. Add Preprocessing

Alternative 14: 99.5% accurate, 1.2× speedup?

\[\begin{array}{l} \\ x + \left(0.6666666666666666 - z\right) \cdot \left(\left(y - x\right) \cdot 6\right) \end{array} \]
(FPCore (x y z)
 :precision binary64
 (+ x (* (- 0.6666666666666666 z) (* (- y x) 6.0))))
double code(double x, double y, double z) {
	return x + ((0.6666666666666666 - z) * ((y - x) * 6.0));
}
real(8) function code(x, y, z)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    code = x + ((0.6666666666666666d0 - z) * ((y - x) * 6.0d0))
end function
public static double code(double x, double y, double z) {
	return x + ((0.6666666666666666 - z) * ((y - x) * 6.0));
}
def code(x, y, z):
	return x + ((0.6666666666666666 - z) * ((y - x) * 6.0))
function code(x, y, z)
	return Float64(x + Float64(Float64(0.6666666666666666 - z) * Float64(Float64(y - x) * 6.0)))
end
function tmp = code(x, y, z)
	tmp = x + ((0.6666666666666666 - z) * ((y - x) * 6.0));
end
code[x_, y_, z_] := N[(x + N[(N[(0.6666666666666666 - z), $MachinePrecision] * N[(N[(y - x), $MachinePrecision] * 6.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
x + \left(0.6666666666666666 - z\right) \cdot \left(\left(y - x\right) \cdot 6\right)
\end{array}
Derivation
  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. Final simplification99.5%

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

Alternative 15: 25.8% 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 99.5%

    \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
  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 x around inf 53.9%

    \[\leadsto \color{blue}{x \cdot \left(1 + -6 \cdot \left(0.6666666666666666 - z\right)\right)} \]
  6. Step-by-step derivation
    1. +-commutative53.9%

      \[\leadsto x \cdot \color{blue}{\left(-6 \cdot \left(0.6666666666666666 - z\right) + 1\right)} \]
    2. sub-neg53.9%

      \[\leadsto x \cdot \left(-6 \cdot \color{blue}{\left(0.6666666666666666 + \left(-z\right)\right)} + 1\right) \]
    3. distribute-rgt-in53.9%

      \[\leadsto x \cdot \left(\color{blue}{\left(0.6666666666666666 \cdot -6 + \left(-z\right) \cdot -6\right)} + 1\right) \]
    4. metadata-eval53.9%

      \[\leadsto x \cdot \left(\left(\color{blue}{-4} + \left(-z\right) \cdot -6\right) + 1\right) \]
    5. neg-mul-153.9%

      \[\leadsto x \cdot \left(\left(-4 + \color{blue}{\left(-1 \cdot z\right)} \cdot -6\right) + 1\right) \]
    6. associate-*r*53.9%

      \[\leadsto x \cdot \left(\left(-4 + \color{blue}{-1 \cdot \left(z \cdot -6\right)}\right) + 1\right) \]
    7. *-commutative53.9%

      \[\leadsto x \cdot \left(\left(-4 + -1 \cdot \color{blue}{\left(-6 \cdot z\right)}\right) + 1\right) \]
    8. metadata-eval53.9%

      \[\leadsto x \cdot \left(\left(\color{blue}{-1 \cdot 4} + -1 \cdot \left(-6 \cdot z\right)\right) + 1\right) \]
    9. distribute-lft-in53.9%

      \[\leadsto x \cdot \left(\color{blue}{-1 \cdot \left(4 + -6 \cdot z\right)} + 1\right) \]
    10. +-commutative53.9%

      \[\leadsto x \cdot \color{blue}{\left(1 + -1 \cdot \left(4 + -6 \cdot z\right)\right)} \]
    11. distribute-lft-in53.9%

      \[\leadsto x \cdot \left(1 + \color{blue}{\left(-1 \cdot 4 + -1 \cdot \left(-6 \cdot z\right)\right)}\right) \]
    12. metadata-eval53.9%

      \[\leadsto x \cdot \left(1 + \left(\color{blue}{-4} + -1 \cdot \left(-6 \cdot z\right)\right)\right) \]
    13. associate-+r+54.0%

      \[\leadsto x \cdot \color{blue}{\left(\left(1 + -4\right) + -1 \cdot \left(-6 \cdot z\right)\right)} \]
    14. metadata-eval54.0%

      \[\leadsto x \cdot \left(\color{blue}{-3} + -1 \cdot \left(-6 \cdot z\right)\right) \]
    15. associate-*r*54.0%

      \[\leadsto x \cdot \left(-3 + \color{blue}{\left(-1 \cdot -6\right) \cdot z}\right) \]
    16. metadata-eval54.0%

      \[\leadsto x \cdot \left(-3 + \color{blue}{6} \cdot z\right) \]
    17. *-commutative54.0%

      \[\leadsto x \cdot \left(-3 + \color{blue}{z \cdot 6}\right) \]
  7. Simplified54.0%

    \[\leadsto \color{blue}{x \cdot \left(-3 + z \cdot 6\right)} \]
  8. Taylor expanded in z around 0 27.3%

    \[\leadsto \color{blue}{-3 \cdot x} \]
  9. Step-by-step derivation
    1. *-commutative27.3%

      \[\leadsto \color{blue}{x \cdot -3} \]
  10. Simplified27.3%

    \[\leadsto \color{blue}{x \cdot -3} \]
  11. Add Preprocessing

Alternative 16: 2.7% 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 99.5%

    \[x + \left(\left(y - x\right) \cdot 6\right) \cdot \left(\frac{2}{3} - z\right) \]
  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 y around inf 49.2%

    \[\leadsto x + \color{blue}{6 \cdot \left(y \cdot \left(0.6666666666666666 - z\right)\right)} \]
  6. Taylor expanded in x around inf 2.8%

    \[\leadsto \color{blue}{x} \]
  7. Add Preprocessing

Reproduce

?
herbie shell --seed 2024139 
(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))))