Data.Colour.RGB:hslsv from colour-2.3.3, C

Percentage Accurate: 100.0% → 100.0%
Time: 6.5s
Alternatives: 9
Speedup: 1.0×

Specification

?
\[\begin{array}{l} \\ \frac{x - y}{2 - \left(x + y\right)} \end{array} \]
(FPCore (x y) :precision binary64 (/ (- x y) (- 2.0 (+ x y))))
double code(double x, double y) {
	return (x - y) / (2.0 - (x + y));
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = (x - y) / (2.0d0 - (x + y))
end function
public static double code(double x, double y) {
	return (x - y) / (2.0 - (x + y));
}
def code(x, y):
	return (x - y) / (2.0 - (x + y))
function code(x, y)
	return Float64(Float64(x - y) / Float64(2.0 - Float64(x + y)))
end
function tmp = code(x, y)
	tmp = (x - y) / (2.0 - (x + y));
end
code[x_, y_] := N[(N[(x - y), $MachinePrecision] / N[(2.0 - N[(x + y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\frac{x - y}{2 - \left(x + y\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 9 alternatives:

AlternativeAccuracySpeedup
The accuracy (vertical axis) and speed (horizontal axis) of each alternatives. Up and to the right is better. The red square shows the initial program, and each blue circle shows an alternative.The line shows the best available speed-accuracy tradeoffs.

Initial Program: 100.0% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \frac{x - y}{2 - \left(x + y\right)} \end{array} \]
(FPCore (x y) :precision binary64 (/ (- x y) (- 2.0 (+ x y))))
double code(double x, double y) {
	return (x - y) / (2.0 - (x + y));
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = (x - y) / (2.0d0 - (x + y))
end function
public static double code(double x, double y) {
	return (x - y) / (2.0 - (x + y));
}
def code(x, y):
	return (x - y) / (2.0 - (x + y))
function code(x, y)
	return Float64(Float64(x - y) / Float64(2.0 - Float64(x + y)))
end
function tmp = code(x, y)
	tmp = (x - y) / (2.0 - (x + y));
end
code[x_, y_] := N[(N[(x - y), $MachinePrecision] / N[(2.0 - N[(x + y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\frac{x - y}{2 - \left(x + y\right)}
\end{array}

Alternative 1: 100.0% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \frac{x - y}{2 - \left(x + y\right)} \end{array} \]
(FPCore (x y) :precision binary64 (/ (- x y) (- 2.0 (+ x y))))
double code(double x, double y) {
	return (x - y) / (2.0 - (x + y));
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = (x - y) / (2.0d0 - (x + y))
end function
public static double code(double x, double y) {
	return (x - y) / (2.0 - (x + y));
}
def code(x, y):
	return (x - y) / (2.0 - (x + y))
function code(x, y)
	return Float64(Float64(x - y) / Float64(2.0 - Float64(x + y)))
end
function tmp = code(x, y)
	tmp = (x - y) / (2.0 - (x + y));
end
code[x_, y_] := N[(N[(x - y), $MachinePrecision] / N[(2.0 - N[(x + y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\frac{x - y}{2 - \left(x + y\right)}
\end{array}
Derivation
  1. Initial program 100.0%

    \[\frac{x - y}{2 - \left(x + y\right)} \]
  2. Add Preprocessing
  3. Add Preprocessing

Alternative 2: 98.0% accurate, 0.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := \frac{x - y}{2 - \left(x + y\right)}\\ \mathbf{if}\;t\_0 \leq -4 \cdot 10^{-16}:\\ \;\;\;\;\frac{x}{2 - x}\\ \mathbf{elif}\;t\_0 \leq 2 \cdot 10^{-10}:\\ \;\;\;\;\left(x - y\right) \cdot 0.5\\ \mathbf{else}:\\ \;\;\;\;\frac{y}{y + -2}\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (let* ((t_0 (/ (- x y) (- 2.0 (+ x y)))))
   (if (<= t_0 -4e-16)
     (/ x (- 2.0 x))
     (if (<= t_0 2e-10) (* (- x y) 0.5) (/ y (+ y -2.0))))))
double code(double x, double y) {
	double t_0 = (x - y) / (2.0 - (x + y));
	double tmp;
	if (t_0 <= -4e-16) {
		tmp = x / (2.0 - x);
	} else if (t_0 <= 2e-10) {
		tmp = (x - y) * 0.5;
	} else {
		tmp = y / (y + -2.0);
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: t_0
    real(8) :: tmp
    t_0 = (x - y) / (2.0d0 - (x + y))
    if (t_0 <= (-4d-16)) then
        tmp = x / (2.0d0 - x)
    else if (t_0 <= 2d-10) then
        tmp = (x - y) * 0.5d0
    else
        tmp = y / (y + (-2.0d0))
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double t_0 = (x - y) / (2.0 - (x + y));
	double tmp;
	if (t_0 <= -4e-16) {
		tmp = x / (2.0 - x);
	} else if (t_0 <= 2e-10) {
		tmp = (x - y) * 0.5;
	} else {
		tmp = y / (y + -2.0);
	}
	return tmp;
}
def code(x, y):
	t_0 = (x - y) / (2.0 - (x + y))
	tmp = 0
	if t_0 <= -4e-16:
		tmp = x / (2.0 - x)
	elif t_0 <= 2e-10:
		tmp = (x - y) * 0.5
	else:
		tmp = y / (y + -2.0)
	return tmp
function code(x, y)
	t_0 = Float64(Float64(x - y) / Float64(2.0 - Float64(x + y)))
	tmp = 0.0
	if (t_0 <= -4e-16)
		tmp = Float64(x / Float64(2.0 - x));
	elseif (t_0 <= 2e-10)
		tmp = Float64(Float64(x - y) * 0.5);
	else
		tmp = Float64(y / Float64(y + -2.0));
	end
	return tmp
end
function tmp_2 = code(x, y)
	t_0 = (x - y) / (2.0 - (x + y));
	tmp = 0.0;
	if (t_0 <= -4e-16)
		tmp = x / (2.0 - x);
	elseif (t_0 <= 2e-10)
		tmp = (x - y) * 0.5;
	else
		tmp = y / (y + -2.0);
	end
	tmp_2 = tmp;
end
code[x_, y_] := Block[{t$95$0 = N[(N[(x - y), $MachinePrecision] / N[(2.0 - N[(x + y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$0, -4e-16], N[(x / N[(2.0 - x), $MachinePrecision]), $MachinePrecision], If[LessEqual[t$95$0, 2e-10], N[(N[(x - y), $MachinePrecision] * 0.5), $MachinePrecision], N[(y / N[(y + -2.0), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := \frac{x - y}{2 - \left(x + y\right)}\\
\mathbf{if}\;t\_0 \leq -4 \cdot 10^{-16}:\\
\;\;\;\;\frac{x}{2 - x}\\

\mathbf{elif}\;t\_0 \leq 2 \cdot 10^{-10}:\\
\;\;\;\;\left(x - y\right) \cdot 0.5\\

\mathbf{else}:\\
\;\;\;\;\frac{y}{y + -2}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if (/.f64 (-.f64 x y) (-.f64 #s(literal 2 binary64) (+.f64 x y))) < -3.9999999999999999e-16

    1. Initial program 100.0%

      \[\frac{x - y}{2 - \left(x + y\right)} \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0

      \[\leadsto \color{blue}{\frac{x}{2 - x}} \]
    4. Step-by-step derivation
      1. lower-/.f64N/A

        \[\leadsto \color{blue}{\frac{x}{2 - x}} \]
      2. lower--.f6497.3

        \[\leadsto \frac{x}{\color{blue}{2 - x}} \]
    5. Simplified97.3%

      \[\leadsto \color{blue}{\frac{x}{2 - x}} \]

    if -3.9999999999999999e-16 < (/.f64 (-.f64 x y) (-.f64 #s(literal 2 binary64) (+.f64 x y))) < 2.00000000000000007e-10

    1. Initial program 100.0%

      \[\frac{x - y}{2 - \left(x + y\right)} \]
    2. Add Preprocessing
    3. Taylor expanded in x around 0

      \[\leadsto \frac{x - y}{\color{blue}{2 - y}} \]
    4. Step-by-step derivation
      1. lower--.f6499.5

        \[\leadsto \frac{x - y}{\color{blue}{2 - y}} \]
    5. Simplified99.5%

      \[\leadsto \frac{x - y}{\color{blue}{2 - y}} \]
    6. Taylor expanded in y around 0

      \[\leadsto \frac{x - y}{\color{blue}{2}} \]
    7. Step-by-step derivation
      1. Simplified99.2%

        \[\leadsto \frac{x - y}{\color{blue}{2}} \]
      2. Step-by-step derivation
        1. lift--.f64N/A

          \[\leadsto \frac{\color{blue}{x - y}}{2} \]
        2. div-invN/A

          \[\leadsto \color{blue}{\left(x - y\right) \cdot \frac{1}{2}} \]
        3. metadata-evalN/A

          \[\leadsto \left(x - y\right) \cdot \color{blue}{\frac{1}{2}} \]
        4. lower-*.f6499.2

          \[\leadsto \color{blue}{\left(x - y\right) \cdot 0.5} \]
      3. Applied egg-rr99.2%

        \[\leadsto \color{blue}{\left(x - y\right) \cdot 0.5} \]

      if 2.00000000000000007e-10 < (/.f64 (-.f64 x y) (-.f64 #s(literal 2 binary64) (+.f64 x y)))

      1. Initial program 100.0%

        \[\frac{x - y}{2 - \left(x + y\right)} \]
      2. Add Preprocessing
      3. Taylor expanded in x around 0

        \[\leadsto \color{blue}{-1 \cdot \frac{y}{2 - y}} \]
      4. Step-by-step derivation
        1. mul-1-negN/A

          \[\leadsto \color{blue}{\mathsf{neg}\left(\frac{y}{2 - y}\right)} \]
        2. distribute-neg-frac2N/A

          \[\leadsto \color{blue}{\frac{y}{\mathsf{neg}\left(\left(2 - y\right)\right)}} \]
        3. mul-1-negN/A

          \[\leadsto \frac{y}{\color{blue}{-1 \cdot \left(2 - y\right)}} \]
        4. lower-/.f64N/A

          \[\leadsto \color{blue}{\frac{y}{-1 \cdot \left(2 - y\right)}} \]
        5. mul-1-negN/A

          \[\leadsto \frac{y}{\color{blue}{\mathsf{neg}\left(\left(2 - y\right)\right)}} \]
        6. sub-negN/A

          \[\leadsto \frac{y}{\mathsf{neg}\left(\color{blue}{\left(2 + \left(\mathsf{neg}\left(y\right)\right)\right)}\right)} \]
        7. +-commutativeN/A

          \[\leadsto \frac{y}{\mathsf{neg}\left(\color{blue}{\left(\left(\mathsf{neg}\left(y\right)\right) + 2\right)}\right)} \]
        8. distribute-neg-inN/A

          \[\leadsto \frac{y}{\color{blue}{\left(\mathsf{neg}\left(\left(\mathsf{neg}\left(y\right)\right)\right)\right) + \left(\mathsf{neg}\left(2\right)\right)}} \]
        9. mul-1-negN/A

          \[\leadsto \frac{y}{\color{blue}{-1 \cdot \left(\mathsf{neg}\left(y\right)\right)} + \left(\mathsf{neg}\left(2\right)\right)} \]
        10. mul-1-negN/A

          \[\leadsto \frac{y}{-1 \cdot \color{blue}{\left(-1 \cdot y\right)} + \left(\mathsf{neg}\left(2\right)\right)} \]
        11. associate-*r*N/A

          \[\leadsto \frac{y}{\color{blue}{\left(-1 \cdot -1\right) \cdot y} + \left(\mathsf{neg}\left(2\right)\right)} \]
        12. metadata-evalN/A

          \[\leadsto \frac{y}{\color{blue}{1} \cdot y + \left(\mathsf{neg}\left(2\right)\right)} \]
        13. *-lft-identityN/A

          \[\leadsto \frac{y}{\color{blue}{y} + \left(\mathsf{neg}\left(2\right)\right)} \]
        14. lower-+.f64N/A

          \[\leadsto \frac{y}{\color{blue}{y + \left(\mathsf{neg}\left(2\right)\right)}} \]
        15. metadata-eval99.8

          \[\leadsto \frac{y}{y + \color{blue}{-2}} \]
      5. Simplified99.8%

        \[\leadsto \color{blue}{\frac{y}{y + -2}} \]
    8. Recombined 3 regimes into one program.
    9. Add Preprocessing

    Alternative 3: 97.2% accurate, 0.3× speedup?

    \[\begin{array}{l} \\ \begin{array}{l} t_0 := \frac{x - y}{2 - \left(x + y\right)}\\ \mathbf{if}\;t\_0 \leq -4 \cdot 10^{-16}:\\ \;\;\;\;\frac{x}{2 - x}\\ \mathbf{elif}\;t\_0 \leq 2 \cdot 10^{-10}:\\ \;\;\;\;\left(x - y\right) \cdot 0.5\\ \mathbf{else}:\\ \;\;\;\;1 - \frac{x}{y}\\ \end{array} \end{array} \]
    (FPCore (x y)
     :precision binary64
     (let* ((t_0 (/ (- x y) (- 2.0 (+ x y)))))
       (if (<= t_0 -4e-16)
         (/ x (- 2.0 x))
         (if (<= t_0 2e-10) (* (- x y) 0.5) (- 1.0 (/ x y))))))
    double code(double x, double y) {
    	double t_0 = (x - y) / (2.0 - (x + y));
    	double tmp;
    	if (t_0 <= -4e-16) {
    		tmp = x / (2.0 - x);
    	} else if (t_0 <= 2e-10) {
    		tmp = (x - y) * 0.5;
    	} else {
    		tmp = 1.0 - (x / y);
    	}
    	return tmp;
    }
    
    real(8) function code(x, y)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        real(8) :: t_0
        real(8) :: tmp
        t_0 = (x - y) / (2.0d0 - (x + y))
        if (t_0 <= (-4d-16)) then
            tmp = x / (2.0d0 - x)
        else if (t_0 <= 2d-10) then
            tmp = (x - y) * 0.5d0
        else
            tmp = 1.0d0 - (x / y)
        end if
        code = tmp
    end function
    
    public static double code(double x, double y) {
    	double t_0 = (x - y) / (2.0 - (x + y));
    	double tmp;
    	if (t_0 <= -4e-16) {
    		tmp = x / (2.0 - x);
    	} else if (t_0 <= 2e-10) {
    		tmp = (x - y) * 0.5;
    	} else {
    		tmp = 1.0 - (x / y);
    	}
    	return tmp;
    }
    
    def code(x, y):
    	t_0 = (x - y) / (2.0 - (x + y))
    	tmp = 0
    	if t_0 <= -4e-16:
    		tmp = x / (2.0 - x)
    	elif t_0 <= 2e-10:
    		tmp = (x - y) * 0.5
    	else:
    		tmp = 1.0 - (x / y)
    	return tmp
    
    function code(x, y)
    	t_0 = Float64(Float64(x - y) / Float64(2.0 - Float64(x + y)))
    	tmp = 0.0
    	if (t_0 <= -4e-16)
    		tmp = Float64(x / Float64(2.0 - x));
    	elseif (t_0 <= 2e-10)
    		tmp = Float64(Float64(x - y) * 0.5);
    	else
    		tmp = Float64(1.0 - Float64(x / y));
    	end
    	return tmp
    end
    
    function tmp_2 = code(x, y)
    	t_0 = (x - y) / (2.0 - (x + y));
    	tmp = 0.0;
    	if (t_0 <= -4e-16)
    		tmp = x / (2.0 - x);
    	elseif (t_0 <= 2e-10)
    		tmp = (x - y) * 0.5;
    	else
    		tmp = 1.0 - (x / y);
    	end
    	tmp_2 = tmp;
    end
    
    code[x_, y_] := Block[{t$95$0 = N[(N[(x - y), $MachinePrecision] / N[(2.0 - N[(x + y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$0, -4e-16], N[(x / N[(2.0 - x), $MachinePrecision]), $MachinePrecision], If[LessEqual[t$95$0, 2e-10], N[(N[(x - y), $MachinePrecision] * 0.5), $MachinePrecision], N[(1.0 - N[(x / y), $MachinePrecision]), $MachinePrecision]]]]
    
    \begin{array}{l}
    
    \\
    \begin{array}{l}
    t_0 := \frac{x - y}{2 - \left(x + y\right)}\\
    \mathbf{if}\;t\_0 \leq -4 \cdot 10^{-16}:\\
    \;\;\;\;\frac{x}{2 - x}\\
    
    \mathbf{elif}\;t\_0 \leq 2 \cdot 10^{-10}:\\
    \;\;\;\;\left(x - y\right) \cdot 0.5\\
    
    \mathbf{else}:\\
    \;\;\;\;1 - \frac{x}{y}\\
    
    
    \end{array}
    \end{array}
    
    Derivation
    1. Split input into 3 regimes
    2. if (/.f64 (-.f64 x y) (-.f64 #s(literal 2 binary64) (+.f64 x y))) < -3.9999999999999999e-16

      1. Initial program 100.0%

        \[\frac{x - y}{2 - \left(x + y\right)} \]
      2. Add Preprocessing
      3. Taylor expanded in y around 0

        \[\leadsto \color{blue}{\frac{x}{2 - x}} \]
      4. Step-by-step derivation
        1. lower-/.f64N/A

          \[\leadsto \color{blue}{\frac{x}{2 - x}} \]
        2. lower--.f6497.3

          \[\leadsto \frac{x}{\color{blue}{2 - x}} \]
      5. Simplified97.3%

        \[\leadsto \color{blue}{\frac{x}{2 - x}} \]

      if -3.9999999999999999e-16 < (/.f64 (-.f64 x y) (-.f64 #s(literal 2 binary64) (+.f64 x y))) < 2.00000000000000007e-10

      1. Initial program 100.0%

        \[\frac{x - y}{2 - \left(x + y\right)} \]
      2. Add Preprocessing
      3. Taylor expanded in x around 0

        \[\leadsto \frac{x - y}{\color{blue}{2 - y}} \]
      4. Step-by-step derivation
        1. lower--.f6499.5

          \[\leadsto \frac{x - y}{\color{blue}{2 - y}} \]
      5. Simplified99.5%

        \[\leadsto \frac{x - y}{\color{blue}{2 - y}} \]
      6. Taylor expanded in y around 0

        \[\leadsto \frac{x - y}{\color{blue}{2}} \]
      7. Step-by-step derivation
        1. Simplified99.2%

          \[\leadsto \frac{x - y}{\color{blue}{2}} \]
        2. Step-by-step derivation
          1. lift--.f64N/A

            \[\leadsto \frac{\color{blue}{x - y}}{2} \]
          2. div-invN/A

            \[\leadsto \color{blue}{\left(x - y\right) \cdot \frac{1}{2}} \]
          3. metadata-evalN/A

            \[\leadsto \left(x - y\right) \cdot \color{blue}{\frac{1}{2}} \]
          4. lower-*.f6499.2

            \[\leadsto \color{blue}{\left(x - y\right) \cdot 0.5} \]
        3. Applied egg-rr99.2%

          \[\leadsto \color{blue}{\left(x - y\right) \cdot 0.5} \]

        if 2.00000000000000007e-10 < (/.f64 (-.f64 x y) (-.f64 #s(literal 2 binary64) (+.f64 x y)))

        1. Initial program 100.0%

          \[\frac{x - y}{2 - \left(x + y\right)} \]
        2. Add Preprocessing
        3. Taylor expanded in y around inf

          \[\leadsto \frac{x - y}{\color{blue}{-1 \cdot y}} \]
        4. Step-by-step derivation
          1. mul-1-negN/A

            \[\leadsto \frac{x - y}{\color{blue}{\mathsf{neg}\left(y\right)}} \]
          2. lower-neg.f6498.6

            \[\leadsto \frac{x - y}{\color{blue}{-y}} \]
        5. Simplified98.6%

          \[\leadsto \frac{x - y}{\color{blue}{-y}} \]
        6. Taylor expanded in x around 0

          \[\leadsto \color{blue}{1 + -1 \cdot \frac{x}{y}} \]
        7. Step-by-step derivation
          1. mul-1-negN/A

            \[\leadsto 1 + \color{blue}{\left(\mathsf{neg}\left(\frac{x}{y}\right)\right)} \]
          2. unsub-negN/A

            \[\leadsto \color{blue}{1 - \frac{x}{y}} \]
          3. lower--.f64N/A

            \[\leadsto \color{blue}{1 - \frac{x}{y}} \]
          4. lower-/.f6498.6

            \[\leadsto 1 - \color{blue}{\frac{x}{y}} \]
        8. Simplified98.6%

          \[\leadsto \color{blue}{1 - \frac{x}{y}} \]
      8. Recombined 3 regimes into one program.
      9. Add Preprocessing

      Alternative 4: 96.7% accurate, 0.3× speedup?

      \[\begin{array}{l} \\ \begin{array}{l} t_0 := \frac{x - y}{2 - \left(x + y\right)}\\ \mathbf{if}\;t\_0 \leq -0.5:\\ \;\;\;\;-1\\ \mathbf{elif}\;t\_0 \leq 2 \cdot 10^{-10}:\\ \;\;\;\;\left(x - y\right) \cdot 0.5\\ \mathbf{else}:\\ \;\;\;\;1 - \frac{x}{y}\\ \end{array} \end{array} \]
      (FPCore (x y)
       :precision binary64
       (let* ((t_0 (/ (- x y) (- 2.0 (+ x y)))))
         (if (<= t_0 -0.5)
           -1.0
           (if (<= t_0 2e-10) (* (- x y) 0.5) (- 1.0 (/ x y))))))
      double code(double x, double y) {
      	double t_0 = (x - y) / (2.0 - (x + y));
      	double tmp;
      	if (t_0 <= -0.5) {
      		tmp = -1.0;
      	} else if (t_0 <= 2e-10) {
      		tmp = (x - y) * 0.5;
      	} else {
      		tmp = 1.0 - (x / y);
      	}
      	return tmp;
      }
      
      real(8) function code(x, y)
          real(8), intent (in) :: x
          real(8), intent (in) :: y
          real(8) :: t_0
          real(8) :: tmp
          t_0 = (x - y) / (2.0d0 - (x + y))
          if (t_0 <= (-0.5d0)) then
              tmp = -1.0d0
          else if (t_0 <= 2d-10) then
              tmp = (x - y) * 0.5d0
          else
              tmp = 1.0d0 - (x / y)
          end if
          code = tmp
      end function
      
      public static double code(double x, double y) {
      	double t_0 = (x - y) / (2.0 - (x + y));
      	double tmp;
      	if (t_0 <= -0.5) {
      		tmp = -1.0;
      	} else if (t_0 <= 2e-10) {
      		tmp = (x - y) * 0.5;
      	} else {
      		tmp = 1.0 - (x / y);
      	}
      	return tmp;
      }
      
      def code(x, y):
      	t_0 = (x - y) / (2.0 - (x + y))
      	tmp = 0
      	if t_0 <= -0.5:
      		tmp = -1.0
      	elif t_0 <= 2e-10:
      		tmp = (x - y) * 0.5
      	else:
      		tmp = 1.0 - (x / y)
      	return tmp
      
      function code(x, y)
      	t_0 = Float64(Float64(x - y) / Float64(2.0 - Float64(x + y)))
      	tmp = 0.0
      	if (t_0 <= -0.5)
      		tmp = -1.0;
      	elseif (t_0 <= 2e-10)
      		tmp = Float64(Float64(x - y) * 0.5);
      	else
      		tmp = Float64(1.0 - Float64(x / y));
      	end
      	return tmp
      end
      
      function tmp_2 = code(x, y)
      	t_0 = (x - y) / (2.0 - (x + y));
      	tmp = 0.0;
      	if (t_0 <= -0.5)
      		tmp = -1.0;
      	elseif (t_0 <= 2e-10)
      		tmp = (x - y) * 0.5;
      	else
      		tmp = 1.0 - (x / y);
      	end
      	tmp_2 = tmp;
      end
      
      code[x_, y_] := Block[{t$95$0 = N[(N[(x - y), $MachinePrecision] / N[(2.0 - N[(x + y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$0, -0.5], -1.0, If[LessEqual[t$95$0, 2e-10], N[(N[(x - y), $MachinePrecision] * 0.5), $MachinePrecision], N[(1.0 - N[(x / y), $MachinePrecision]), $MachinePrecision]]]]
      
      \begin{array}{l}
      
      \\
      \begin{array}{l}
      t_0 := \frac{x - y}{2 - \left(x + y\right)}\\
      \mathbf{if}\;t\_0 \leq -0.5:\\
      \;\;\;\;-1\\
      
      \mathbf{elif}\;t\_0 \leq 2 \cdot 10^{-10}:\\
      \;\;\;\;\left(x - y\right) \cdot 0.5\\
      
      \mathbf{else}:\\
      \;\;\;\;1 - \frac{x}{y}\\
      
      
      \end{array}
      \end{array}
      
      Derivation
      1. Split input into 3 regimes
      2. if (/.f64 (-.f64 x y) (-.f64 #s(literal 2 binary64) (+.f64 x y))) < -0.5

        1. Initial program 100.0%

          \[\frac{x - y}{2 - \left(x + y\right)} \]
        2. Add Preprocessing
        3. Taylor expanded in x around inf

          \[\leadsto \color{blue}{-1} \]
        4. Step-by-step derivation
          1. Simplified97.4%

            \[\leadsto \color{blue}{-1} \]

          if -0.5 < (/.f64 (-.f64 x y) (-.f64 #s(literal 2 binary64) (+.f64 x y))) < 2.00000000000000007e-10

          1. Initial program 100.0%

            \[\frac{x - y}{2 - \left(x + y\right)} \]
          2. Add Preprocessing
          3. Taylor expanded in x around 0

            \[\leadsto \frac{x - y}{\color{blue}{2 - y}} \]
          4. Step-by-step derivation
            1. lower--.f6498.5

              \[\leadsto \frac{x - y}{\color{blue}{2 - y}} \]
          5. Simplified98.5%

            \[\leadsto \frac{x - y}{\color{blue}{2 - y}} \]
          6. Taylor expanded in y around 0

            \[\leadsto \frac{x - y}{\color{blue}{2}} \]
          7. Step-by-step derivation
            1. Simplified97.7%

              \[\leadsto \frac{x - y}{\color{blue}{2}} \]
            2. Step-by-step derivation
              1. lift--.f64N/A

                \[\leadsto \frac{\color{blue}{x - y}}{2} \]
              2. div-invN/A

                \[\leadsto \color{blue}{\left(x - y\right) \cdot \frac{1}{2}} \]
              3. metadata-evalN/A

                \[\leadsto \left(x - y\right) \cdot \color{blue}{\frac{1}{2}} \]
              4. lower-*.f6497.7

                \[\leadsto \color{blue}{\left(x - y\right) \cdot 0.5} \]
            3. Applied egg-rr97.7%

              \[\leadsto \color{blue}{\left(x - y\right) \cdot 0.5} \]

            if 2.00000000000000007e-10 < (/.f64 (-.f64 x y) (-.f64 #s(literal 2 binary64) (+.f64 x y)))

            1. Initial program 100.0%

              \[\frac{x - y}{2 - \left(x + y\right)} \]
            2. Add Preprocessing
            3. Taylor expanded in y around inf

              \[\leadsto \frac{x - y}{\color{blue}{-1 \cdot y}} \]
            4. Step-by-step derivation
              1. mul-1-negN/A

                \[\leadsto \frac{x - y}{\color{blue}{\mathsf{neg}\left(y\right)}} \]
              2. lower-neg.f6498.6

                \[\leadsto \frac{x - y}{\color{blue}{-y}} \]
            5. Simplified98.6%

              \[\leadsto \frac{x - y}{\color{blue}{-y}} \]
            6. Taylor expanded in x around 0

              \[\leadsto \color{blue}{1 + -1 \cdot \frac{x}{y}} \]
            7. Step-by-step derivation
              1. mul-1-negN/A

                \[\leadsto 1 + \color{blue}{\left(\mathsf{neg}\left(\frac{x}{y}\right)\right)} \]
              2. unsub-negN/A

                \[\leadsto \color{blue}{1 - \frac{x}{y}} \]
              3. lower--.f64N/A

                \[\leadsto \color{blue}{1 - \frac{x}{y}} \]
              4. lower-/.f6498.6

                \[\leadsto 1 - \color{blue}{\frac{x}{y}} \]
            8. Simplified98.6%

              \[\leadsto \color{blue}{1 - \frac{x}{y}} \]
          8. Recombined 3 regimes into one program.
          9. Add Preprocessing

          Alternative 5: 96.7% accurate, 0.3× speedup?

          \[\begin{array}{l} \\ \begin{array}{l} t_0 := \frac{x - y}{2 - \left(x + y\right)}\\ \mathbf{if}\;t\_0 \leq -0.5:\\ \;\;\;\;-1\\ \mathbf{elif}\;t\_0 \leq 2 \cdot 10^{-10}:\\ \;\;\;\;\left(x - y\right) \cdot 0.5\\ \mathbf{else}:\\ \;\;\;\;1\\ \end{array} \end{array} \]
          (FPCore (x y)
           :precision binary64
           (let* ((t_0 (/ (- x y) (- 2.0 (+ x y)))))
             (if (<= t_0 -0.5) -1.0 (if (<= t_0 2e-10) (* (- x y) 0.5) 1.0))))
          double code(double x, double y) {
          	double t_0 = (x - y) / (2.0 - (x + y));
          	double tmp;
          	if (t_0 <= -0.5) {
          		tmp = -1.0;
          	} else if (t_0 <= 2e-10) {
          		tmp = (x - y) * 0.5;
          	} else {
          		tmp = 1.0;
          	}
          	return tmp;
          }
          
          real(8) function code(x, y)
              real(8), intent (in) :: x
              real(8), intent (in) :: y
              real(8) :: t_0
              real(8) :: tmp
              t_0 = (x - y) / (2.0d0 - (x + y))
              if (t_0 <= (-0.5d0)) then
                  tmp = -1.0d0
              else if (t_0 <= 2d-10) then
                  tmp = (x - y) * 0.5d0
              else
                  tmp = 1.0d0
              end if
              code = tmp
          end function
          
          public static double code(double x, double y) {
          	double t_0 = (x - y) / (2.0 - (x + y));
          	double tmp;
          	if (t_0 <= -0.5) {
          		tmp = -1.0;
          	} else if (t_0 <= 2e-10) {
          		tmp = (x - y) * 0.5;
          	} else {
          		tmp = 1.0;
          	}
          	return tmp;
          }
          
          def code(x, y):
          	t_0 = (x - y) / (2.0 - (x + y))
          	tmp = 0
          	if t_0 <= -0.5:
          		tmp = -1.0
          	elif t_0 <= 2e-10:
          		tmp = (x - y) * 0.5
          	else:
          		tmp = 1.0
          	return tmp
          
          function code(x, y)
          	t_0 = Float64(Float64(x - y) / Float64(2.0 - Float64(x + y)))
          	tmp = 0.0
          	if (t_0 <= -0.5)
          		tmp = -1.0;
          	elseif (t_0 <= 2e-10)
          		tmp = Float64(Float64(x - y) * 0.5);
          	else
          		tmp = 1.0;
          	end
          	return tmp
          end
          
          function tmp_2 = code(x, y)
          	t_0 = (x - y) / (2.0 - (x + y));
          	tmp = 0.0;
          	if (t_0 <= -0.5)
          		tmp = -1.0;
          	elseif (t_0 <= 2e-10)
          		tmp = (x - y) * 0.5;
          	else
          		tmp = 1.0;
          	end
          	tmp_2 = tmp;
          end
          
          code[x_, y_] := Block[{t$95$0 = N[(N[(x - y), $MachinePrecision] / N[(2.0 - N[(x + y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$0, -0.5], -1.0, If[LessEqual[t$95$0, 2e-10], N[(N[(x - y), $MachinePrecision] * 0.5), $MachinePrecision], 1.0]]]
          
          \begin{array}{l}
          
          \\
          \begin{array}{l}
          t_0 := \frac{x - y}{2 - \left(x + y\right)}\\
          \mathbf{if}\;t\_0 \leq -0.5:\\
          \;\;\;\;-1\\
          
          \mathbf{elif}\;t\_0 \leq 2 \cdot 10^{-10}:\\
          \;\;\;\;\left(x - y\right) \cdot 0.5\\
          
          \mathbf{else}:\\
          \;\;\;\;1\\
          
          
          \end{array}
          \end{array}
          
          Derivation
          1. Split input into 3 regimes
          2. if (/.f64 (-.f64 x y) (-.f64 #s(literal 2 binary64) (+.f64 x y))) < -0.5

            1. Initial program 100.0%

              \[\frac{x - y}{2 - \left(x + y\right)} \]
            2. Add Preprocessing
            3. Taylor expanded in x around inf

              \[\leadsto \color{blue}{-1} \]
            4. Step-by-step derivation
              1. Simplified97.4%

                \[\leadsto \color{blue}{-1} \]

              if -0.5 < (/.f64 (-.f64 x y) (-.f64 #s(literal 2 binary64) (+.f64 x y))) < 2.00000000000000007e-10

              1. Initial program 100.0%

                \[\frac{x - y}{2 - \left(x + y\right)} \]
              2. Add Preprocessing
              3. Taylor expanded in x around 0

                \[\leadsto \frac{x - y}{\color{blue}{2 - y}} \]
              4. Step-by-step derivation
                1. lower--.f6498.5

                  \[\leadsto \frac{x - y}{\color{blue}{2 - y}} \]
              5. Simplified98.5%

                \[\leadsto \frac{x - y}{\color{blue}{2 - y}} \]
              6. Taylor expanded in y around 0

                \[\leadsto \frac{x - y}{\color{blue}{2}} \]
              7. Step-by-step derivation
                1. Simplified97.7%

                  \[\leadsto \frac{x - y}{\color{blue}{2}} \]
                2. Step-by-step derivation
                  1. lift--.f64N/A

                    \[\leadsto \frac{\color{blue}{x - y}}{2} \]
                  2. div-invN/A

                    \[\leadsto \color{blue}{\left(x - y\right) \cdot \frac{1}{2}} \]
                  3. metadata-evalN/A

                    \[\leadsto \left(x - y\right) \cdot \color{blue}{\frac{1}{2}} \]
                  4. lower-*.f6497.7

                    \[\leadsto \color{blue}{\left(x - y\right) \cdot 0.5} \]
                3. Applied egg-rr97.7%

                  \[\leadsto \color{blue}{\left(x - y\right) \cdot 0.5} \]

                if 2.00000000000000007e-10 < (/.f64 (-.f64 x y) (-.f64 #s(literal 2 binary64) (+.f64 x y)))

                1. Initial program 100.0%

                  \[\frac{x - y}{2 - \left(x + y\right)} \]
                2. Add Preprocessing
                3. Taylor expanded in y around inf

                  \[\leadsto \color{blue}{1} \]
                4. Step-by-step derivation
                  1. Simplified98.6%

                    \[\leadsto \color{blue}{1} \]
                5. Recombined 3 regimes into one program.
                6. Add Preprocessing

                Alternative 6: 84.8% accurate, 0.4× speedup?

                \[\begin{array}{l} \\ \begin{array}{l} t_0 := \frac{x - y}{2 - \left(x + y\right)}\\ \mathbf{if}\;t\_0 \leq -1 \cdot 10^{-8}:\\ \;\;\;\;-1\\ \mathbf{elif}\;t\_0 \leq 2 \cdot 10^{-10}:\\ \;\;\;\;x \cdot 0.5\\ \mathbf{else}:\\ \;\;\;\;1\\ \end{array} \end{array} \]
                (FPCore (x y)
                 :precision binary64
                 (let* ((t_0 (/ (- x y) (- 2.0 (+ x y)))))
                   (if (<= t_0 -1e-8) -1.0 (if (<= t_0 2e-10) (* x 0.5) 1.0))))
                double code(double x, double y) {
                	double t_0 = (x - y) / (2.0 - (x + y));
                	double tmp;
                	if (t_0 <= -1e-8) {
                		tmp = -1.0;
                	} else if (t_0 <= 2e-10) {
                		tmp = x * 0.5;
                	} else {
                		tmp = 1.0;
                	}
                	return tmp;
                }
                
                real(8) function code(x, y)
                    real(8), intent (in) :: x
                    real(8), intent (in) :: y
                    real(8) :: t_0
                    real(8) :: tmp
                    t_0 = (x - y) / (2.0d0 - (x + y))
                    if (t_0 <= (-1d-8)) then
                        tmp = -1.0d0
                    else if (t_0 <= 2d-10) then
                        tmp = x * 0.5d0
                    else
                        tmp = 1.0d0
                    end if
                    code = tmp
                end function
                
                public static double code(double x, double y) {
                	double t_0 = (x - y) / (2.0 - (x + y));
                	double tmp;
                	if (t_0 <= -1e-8) {
                		tmp = -1.0;
                	} else if (t_0 <= 2e-10) {
                		tmp = x * 0.5;
                	} else {
                		tmp = 1.0;
                	}
                	return tmp;
                }
                
                def code(x, y):
                	t_0 = (x - y) / (2.0 - (x + y))
                	tmp = 0
                	if t_0 <= -1e-8:
                		tmp = -1.0
                	elif t_0 <= 2e-10:
                		tmp = x * 0.5
                	else:
                		tmp = 1.0
                	return tmp
                
                function code(x, y)
                	t_0 = Float64(Float64(x - y) / Float64(2.0 - Float64(x + y)))
                	tmp = 0.0
                	if (t_0 <= -1e-8)
                		tmp = -1.0;
                	elseif (t_0 <= 2e-10)
                		tmp = Float64(x * 0.5);
                	else
                		tmp = 1.0;
                	end
                	return tmp
                end
                
                function tmp_2 = code(x, y)
                	t_0 = (x - y) / (2.0 - (x + y));
                	tmp = 0.0;
                	if (t_0 <= -1e-8)
                		tmp = -1.0;
                	elseif (t_0 <= 2e-10)
                		tmp = x * 0.5;
                	else
                		tmp = 1.0;
                	end
                	tmp_2 = tmp;
                end
                
                code[x_, y_] := Block[{t$95$0 = N[(N[(x - y), $MachinePrecision] / N[(2.0 - N[(x + y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$0, -1e-8], -1.0, If[LessEqual[t$95$0, 2e-10], N[(x * 0.5), $MachinePrecision], 1.0]]]
                
                \begin{array}{l}
                
                \\
                \begin{array}{l}
                t_0 := \frac{x - y}{2 - \left(x + y\right)}\\
                \mathbf{if}\;t\_0 \leq -1 \cdot 10^{-8}:\\
                \;\;\;\;-1\\
                
                \mathbf{elif}\;t\_0 \leq 2 \cdot 10^{-10}:\\
                \;\;\;\;x \cdot 0.5\\
                
                \mathbf{else}:\\
                \;\;\;\;1\\
                
                
                \end{array}
                \end{array}
                
                Derivation
                1. Split input into 3 regimes
                2. if (/.f64 (-.f64 x y) (-.f64 #s(literal 2 binary64) (+.f64 x y))) < -1e-8

                  1. Initial program 100.0%

                    \[\frac{x - y}{2 - \left(x + y\right)} \]
                  2. Add Preprocessing
                  3. Taylor expanded in x around inf

                    \[\leadsto \color{blue}{-1} \]
                  4. Step-by-step derivation
                    1. Simplified96.5%

                      \[\leadsto \color{blue}{-1} \]

                    if -1e-8 < (/.f64 (-.f64 x y) (-.f64 #s(literal 2 binary64) (+.f64 x y))) < 2.00000000000000007e-10

                    1. Initial program 100.0%

                      \[\frac{x - y}{2 - \left(x + y\right)} \]
                    2. Add Preprocessing
                    3. Taylor expanded in y around 0

                      \[\leadsto \color{blue}{\frac{x}{2 - x}} \]
                    4. Step-by-step derivation
                      1. lower-/.f64N/A

                        \[\leadsto \color{blue}{\frac{x}{2 - x}} \]
                      2. lower--.f6457.1

                        \[\leadsto \frac{x}{\color{blue}{2 - x}} \]
                    5. Simplified57.1%

                      \[\leadsto \color{blue}{\frac{x}{2 - x}} \]
                    6. Taylor expanded in x around 0

                      \[\leadsto \color{blue}{\frac{1}{2} \cdot x} \]
                    7. Step-by-step derivation
                      1. *-commutativeN/A

                        \[\leadsto \color{blue}{x \cdot \frac{1}{2}} \]
                      2. lower-*.f6455.6

                        \[\leadsto \color{blue}{x \cdot 0.5} \]
                    8. Simplified55.6%

                      \[\leadsto \color{blue}{x \cdot 0.5} \]

                    if 2.00000000000000007e-10 < (/.f64 (-.f64 x y) (-.f64 #s(literal 2 binary64) (+.f64 x y)))

                    1. Initial program 100.0%

                      \[\frac{x - y}{2 - \left(x + y\right)} \]
                    2. Add Preprocessing
                    3. Taylor expanded in y around inf

                      \[\leadsto \color{blue}{1} \]
                    4. Step-by-step derivation
                      1. Simplified98.6%

                        \[\leadsto \color{blue}{1} \]
                    5. Recombined 3 regimes into one program.
                    6. Add Preprocessing

                    Alternative 7: 98.4% accurate, 0.5× speedup?

                    \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\frac{x - y}{2 - \left(x + y\right)} \leq -0.5:\\ \;\;\;\;\frac{x}{2 - x}\\ \mathbf{else}:\\ \;\;\;\;\frac{x - y}{2 - y}\\ \end{array} \end{array} \]
                    (FPCore (x y)
                     :precision binary64
                     (if (<= (/ (- x y) (- 2.0 (+ x y))) -0.5)
                       (/ x (- 2.0 x))
                       (/ (- x y) (- 2.0 y))))
                    double code(double x, double y) {
                    	double tmp;
                    	if (((x - y) / (2.0 - (x + y))) <= -0.5) {
                    		tmp = x / (2.0 - x);
                    	} else {
                    		tmp = (x - y) / (2.0 - y);
                    	}
                    	return tmp;
                    }
                    
                    real(8) function code(x, y)
                        real(8), intent (in) :: x
                        real(8), intent (in) :: y
                        real(8) :: tmp
                        if (((x - y) / (2.0d0 - (x + y))) <= (-0.5d0)) then
                            tmp = x / (2.0d0 - x)
                        else
                            tmp = (x - y) / (2.0d0 - y)
                        end if
                        code = tmp
                    end function
                    
                    public static double code(double x, double y) {
                    	double tmp;
                    	if (((x - y) / (2.0 - (x + y))) <= -0.5) {
                    		tmp = x / (2.0 - x);
                    	} else {
                    		tmp = (x - y) / (2.0 - y);
                    	}
                    	return tmp;
                    }
                    
                    def code(x, y):
                    	tmp = 0
                    	if ((x - y) / (2.0 - (x + y))) <= -0.5:
                    		tmp = x / (2.0 - x)
                    	else:
                    		tmp = (x - y) / (2.0 - y)
                    	return tmp
                    
                    function code(x, y)
                    	tmp = 0.0
                    	if (Float64(Float64(x - y) / Float64(2.0 - Float64(x + y))) <= -0.5)
                    		tmp = Float64(x / Float64(2.0 - x));
                    	else
                    		tmp = Float64(Float64(x - y) / Float64(2.0 - y));
                    	end
                    	return tmp
                    end
                    
                    function tmp_2 = code(x, y)
                    	tmp = 0.0;
                    	if (((x - y) / (2.0 - (x + y))) <= -0.5)
                    		tmp = x / (2.0 - x);
                    	else
                    		tmp = (x - y) / (2.0 - y);
                    	end
                    	tmp_2 = tmp;
                    end
                    
                    code[x_, y_] := If[LessEqual[N[(N[(x - y), $MachinePrecision] / N[(2.0 - N[(x + y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], -0.5], N[(x / N[(2.0 - x), $MachinePrecision]), $MachinePrecision], N[(N[(x - y), $MachinePrecision] / N[(2.0 - y), $MachinePrecision]), $MachinePrecision]]
                    
                    \begin{array}{l}
                    
                    \\
                    \begin{array}{l}
                    \mathbf{if}\;\frac{x - y}{2 - \left(x + y\right)} \leq -0.5:\\
                    \;\;\;\;\frac{x}{2 - x}\\
                    
                    \mathbf{else}:\\
                    \;\;\;\;\frac{x - y}{2 - y}\\
                    
                    
                    \end{array}
                    \end{array}
                    
                    Derivation
                    1. Split input into 2 regimes
                    2. if (/.f64 (-.f64 x y) (-.f64 #s(literal 2 binary64) (+.f64 x y))) < -0.5

                      1. Initial program 100.0%

                        \[\frac{x - y}{2 - \left(x + y\right)} \]
                      2. Add Preprocessing
                      3. Taylor expanded in y around 0

                        \[\leadsto \color{blue}{\frac{x}{2 - x}} \]
                      4. Step-by-step derivation
                        1. lower-/.f64N/A

                          \[\leadsto \color{blue}{\frac{x}{2 - x}} \]
                        2. lower--.f6498.3

                          \[\leadsto \frac{x}{\color{blue}{2 - x}} \]
                      5. Simplified98.3%

                        \[\leadsto \color{blue}{\frac{x}{2 - x}} \]

                      if -0.5 < (/.f64 (-.f64 x y) (-.f64 #s(literal 2 binary64) (+.f64 x y)))

                      1. Initial program 100.0%

                        \[\frac{x - y}{2 - \left(x + y\right)} \]
                      2. Add Preprocessing
                      3. Taylor expanded in x around 0

                        \[\leadsto \frac{x - y}{\color{blue}{2 - y}} \]
                      4. Step-by-step derivation
                        1. lower--.f6499.3

                          \[\leadsto \frac{x - y}{\color{blue}{2 - y}} \]
                      5. Simplified99.3%

                        \[\leadsto \frac{x - y}{\color{blue}{2 - y}} \]
                    3. Recombined 2 regimes into one program.
                    4. Add Preprocessing

                    Alternative 8: 74.2% accurate, 0.8× speedup?

                    \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\frac{x - y}{2 - \left(x + y\right)} \leq -2 \cdot 10^{-310}:\\ \;\;\;\;-1\\ \mathbf{else}:\\ \;\;\;\;1\\ \end{array} \end{array} \]
                    (FPCore (x y)
                     :precision binary64
                     (if (<= (/ (- x y) (- 2.0 (+ x y))) -2e-310) -1.0 1.0))
                    double code(double x, double y) {
                    	double tmp;
                    	if (((x - y) / (2.0 - (x + y))) <= -2e-310) {
                    		tmp = -1.0;
                    	} else {
                    		tmp = 1.0;
                    	}
                    	return tmp;
                    }
                    
                    real(8) function code(x, y)
                        real(8), intent (in) :: x
                        real(8), intent (in) :: y
                        real(8) :: tmp
                        if (((x - y) / (2.0d0 - (x + y))) <= (-2d-310)) then
                            tmp = -1.0d0
                        else
                            tmp = 1.0d0
                        end if
                        code = tmp
                    end function
                    
                    public static double code(double x, double y) {
                    	double tmp;
                    	if (((x - y) / (2.0 - (x + y))) <= -2e-310) {
                    		tmp = -1.0;
                    	} else {
                    		tmp = 1.0;
                    	}
                    	return tmp;
                    }
                    
                    def code(x, y):
                    	tmp = 0
                    	if ((x - y) / (2.0 - (x + y))) <= -2e-310:
                    		tmp = -1.0
                    	else:
                    		tmp = 1.0
                    	return tmp
                    
                    function code(x, y)
                    	tmp = 0.0
                    	if (Float64(Float64(x - y) / Float64(2.0 - Float64(x + y))) <= -2e-310)
                    		tmp = -1.0;
                    	else
                    		tmp = 1.0;
                    	end
                    	return tmp
                    end
                    
                    function tmp_2 = code(x, y)
                    	tmp = 0.0;
                    	if (((x - y) / (2.0 - (x + y))) <= -2e-310)
                    		tmp = -1.0;
                    	else
                    		tmp = 1.0;
                    	end
                    	tmp_2 = tmp;
                    end
                    
                    code[x_, y_] := If[LessEqual[N[(N[(x - y), $MachinePrecision] / N[(2.0 - N[(x + y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], -2e-310], -1.0, 1.0]
                    
                    \begin{array}{l}
                    
                    \\
                    \begin{array}{l}
                    \mathbf{if}\;\frac{x - y}{2 - \left(x + y\right)} \leq -2 \cdot 10^{-310}:\\
                    \;\;\;\;-1\\
                    
                    \mathbf{else}:\\
                    \;\;\;\;1\\
                    
                    
                    \end{array}
                    \end{array}
                    
                    Derivation
                    1. Split input into 2 regimes
                    2. if (/.f64 (-.f64 x y) (-.f64 #s(literal 2 binary64) (+.f64 x y))) < -1.999999999999994e-310

                      1. Initial program 100.0%

                        \[\frac{x - y}{2 - \left(x + y\right)} \]
                      2. Add Preprocessing
                      3. Taylor expanded in x around inf

                        \[\leadsto \color{blue}{-1} \]
                      4. Step-by-step derivation
                        1. Simplified71.6%

                          \[\leadsto \color{blue}{-1} \]

                        if -1.999999999999994e-310 < (/.f64 (-.f64 x y) (-.f64 #s(literal 2 binary64) (+.f64 x y)))

                        1. Initial program 100.0%

                          \[\frac{x - y}{2 - \left(x + y\right)} \]
                        2. Add Preprocessing
                        3. Taylor expanded in y around inf

                          \[\leadsto \color{blue}{1} \]
                        4. Step-by-step derivation
                          1. Simplified76.4%

                            \[\leadsto \color{blue}{1} \]
                        5. Recombined 2 regimes into one program.
                        6. Add Preprocessing

                        Alternative 9: 38.2% accurate, 21.0× speedup?

                        \[\begin{array}{l} \\ -1 \end{array} \]
                        (FPCore (x y) :precision binary64 -1.0)
                        double code(double x, double y) {
                        	return -1.0;
                        }
                        
                        real(8) function code(x, y)
                            real(8), intent (in) :: x
                            real(8), intent (in) :: y
                            code = -1.0d0
                        end function
                        
                        public static double code(double x, double y) {
                        	return -1.0;
                        }
                        
                        def code(x, y):
                        	return -1.0
                        
                        function code(x, y)
                        	return -1.0
                        end
                        
                        function tmp = code(x, y)
                        	tmp = -1.0;
                        end
                        
                        code[x_, y_] := -1.0
                        
                        \begin{array}{l}
                        
                        \\
                        -1
                        \end{array}
                        
                        Derivation
                        1. Initial program 100.0%

                          \[\frac{x - y}{2 - \left(x + y\right)} \]
                        2. Add Preprocessing
                        3. Taylor expanded in x around inf

                          \[\leadsto \color{blue}{-1} \]
                        4. Step-by-step derivation
                          1. Simplified36.3%

                            \[\leadsto \color{blue}{-1} \]
                          2. Add Preprocessing

                          Developer Target 1: 100.0% accurate, 0.6× speedup?

                          \[\begin{array}{l} \\ \begin{array}{l} t_0 := 2 - \left(x + y\right)\\ \frac{x}{t\_0} - \frac{y}{t\_0} \end{array} \end{array} \]
                          (FPCore (x y)
                           :precision binary64
                           (let* ((t_0 (- 2.0 (+ x y)))) (- (/ x t_0) (/ y t_0))))
                          double code(double x, double y) {
                          	double t_0 = 2.0 - (x + y);
                          	return (x / t_0) - (y / t_0);
                          }
                          
                          real(8) function code(x, y)
                              real(8), intent (in) :: x
                              real(8), intent (in) :: y
                              real(8) :: t_0
                              t_0 = 2.0d0 - (x + y)
                              code = (x / t_0) - (y / t_0)
                          end function
                          
                          public static double code(double x, double y) {
                          	double t_0 = 2.0 - (x + y);
                          	return (x / t_0) - (y / t_0);
                          }
                          
                          def code(x, y):
                          	t_0 = 2.0 - (x + y)
                          	return (x / t_0) - (y / t_0)
                          
                          function code(x, y)
                          	t_0 = Float64(2.0 - Float64(x + y))
                          	return Float64(Float64(x / t_0) - Float64(y / t_0))
                          end
                          
                          function tmp = code(x, y)
                          	t_0 = 2.0 - (x + y);
                          	tmp = (x / t_0) - (y / t_0);
                          end
                          
                          code[x_, y_] := Block[{t$95$0 = N[(2.0 - N[(x + y), $MachinePrecision]), $MachinePrecision]}, N[(N[(x / t$95$0), $MachinePrecision] - N[(y / t$95$0), $MachinePrecision]), $MachinePrecision]]
                          
                          \begin{array}{l}
                          
                          \\
                          \begin{array}{l}
                          t_0 := 2 - \left(x + y\right)\\
                          \frac{x}{t\_0} - \frac{y}{t\_0}
                          \end{array}
                          \end{array}
                          

                          Reproduce

                          ?
                          herbie shell --seed 2024207 
                          (FPCore (x y)
                            :name "Data.Colour.RGB:hslsv from colour-2.3.3, C"
                            :precision binary64
                          
                            :alt
                            (! :herbie-platform default (- (/ x (- 2 (+ x y))) (/ y (- 2 (+ x y)))))
                          
                            (/ (- x y) (- 2.0 (+ x y))))