Graphics.Rendering.Chart.Plot.Vectors:renderPlotVectors from Chart-1.5.3

Percentage Accurate: 77.9% → 100.0%
Time: 6.7s
Alternatives: 6
Speedup: 1.3×

Specification

?
\[\begin{array}{l} \\ x + \left(1 - x\right) \cdot \left(1 - y\right) \end{array} \]
(FPCore (x y) :precision binary64 (+ x (* (- 1.0 x) (- 1.0 y))))
double code(double x, double y) {
	return x + ((1.0 - x) * (1.0 - y));
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = x + ((1.0d0 - x) * (1.0d0 - y))
end function
public static double code(double x, double y) {
	return x + ((1.0 - x) * (1.0 - y));
}
def code(x, y):
	return x + ((1.0 - x) * (1.0 - y))
function code(x, y)
	return Float64(x + Float64(Float64(1.0 - x) * Float64(1.0 - y)))
end
function tmp = code(x, y)
	tmp = x + ((1.0 - x) * (1.0 - y));
end
code[x_, y_] := N[(x + N[(N[(1.0 - x), $MachinePrecision] * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
x + \left(1 - x\right) \cdot \left(1 - 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 6 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: 77.9% accurate, 1.0× speedup?

\[\begin{array}{l} \\ x + \left(1 - x\right) \cdot \left(1 - y\right) \end{array} \]
(FPCore (x y) :precision binary64 (+ x (* (- 1.0 x) (- 1.0 y))))
double code(double x, double y) {
	return x + ((1.0 - x) * (1.0 - y));
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = x + ((1.0d0 - x) * (1.0d0 - y))
end function
public static double code(double x, double y) {
	return x + ((1.0 - x) * (1.0 - y));
}
def code(x, y):
	return x + ((1.0 - x) * (1.0 - y))
function code(x, y)
	return Float64(x + Float64(Float64(1.0 - x) * Float64(1.0 - y)))
end
function tmp = code(x, y)
	tmp = x + ((1.0 - x) * (1.0 - y));
end
code[x_, y_] := N[(x + N[(N[(1.0 - x), $MachinePrecision] * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
x + \left(1 - x\right) \cdot \left(1 - y\right)
\end{array}

Alternative 1: 100.0% accurate, 1.3× speedup?

\[\begin{array}{l} \\ 1 + y \cdot \left(x + -1\right) \end{array} \]
(FPCore (x y) :precision binary64 (+ 1.0 (* y (+ x -1.0))))
double code(double x, double y) {
	return 1.0 + (y * (x + -1.0));
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = 1.0d0 + (y * (x + (-1.0d0)))
end function
public static double code(double x, double y) {
	return 1.0 + (y * (x + -1.0));
}
def code(x, y):
	return 1.0 + (y * (x + -1.0))
function code(x, y)
	return Float64(1.0 + Float64(y * Float64(x + -1.0)))
end
function tmp = code(x, y)
	tmp = 1.0 + (y * (x + -1.0));
end
code[x_, y_] := N[(1.0 + N[(y * N[(x + -1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
1 + y \cdot \left(x + -1\right)
\end{array}
Derivation
  1. Initial program 74.1%

    \[x + \left(1 - x\right) \cdot \left(1 - y\right) \]
  2. Step-by-step derivation
    1. sub-negN/A

      \[\leadsto x + \left(1 - x\right) \cdot \left(1 + \color{blue}{\left(\mathsf{neg}\left(y\right)\right)}\right) \]
    2. distribute-rgt-inN/A

      \[\leadsto x + \left(1 \cdot \left(1 - x\right) + \color{blue}{\left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)}\right) \]
    3. sub-negN/A

      \[\leadsto x + \left(1 \cdot \left(1 + \left(\mathsf{neg}\left(x\right)\right)\right) + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
    4. +-commutativeN/A

      \[\leadsto x + \left(1 \cdot \left(\left(\mathsf{neg}\left(x\right)\right) + 1\right) + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
    5. distribute-lft-inN/A

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

      \[\leadsto x + \left(\left(1 \cdot \left(\mathsf{neg}\left(x\right)\right) + 1\right) + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
    7. associate-+l+N/A

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

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

      \[\leadsto \left(x + \left(\mathsf{neg}\left(x\right)\right)\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
    10. neg-mul-1N/A

      \[\leadsto \left(x + -1 \cdot x\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
    11. distribute-rgt1-inN/A

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

      \[\leadsto 0 \cdot x + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
    13. metadata-evalN/A

      \[\leadsto \left(0 \cdot -1\right) \cdot x + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
    14. associate-*r*N/A

      \[\leadsto 0 \cdot \left(-1 \cdot x\right) + \left(\color{blue}{1} + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
    15. neg-mul-1N/A

      \[\leadsto 0 \cdot \left(\mathsf{neg}\left(x\right)\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
    16. *-lft-identityN/A

      \[\leadsto 0 \cdot \left(1 \cdot \left(\mathsf{neg}\left(x\right)\right)\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
    17. mul0-lftN/A

      \[\leadsto 0 + \left(\color{blue}{1} + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
    18. +-lft-identityN/A

      \[\leadsto 1 + \color{blue}{\left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)} \]
    19. +-lowering-+.f64N/A

      \[\leadsto \mathsf{+.f64}\left(1, \color{blue}{\left(\left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right)}\right) \]
    20. *-commutativeN/A

      \[\leadsto \mathsf{+.f64}\left(1, \left(\left(1 - x\right) \cdot \color{blue}{\left(\mathsf{neg}\left(y\right)\right)}\right)\right) \]
    21. neg-mul-1N/A

      \[\leadsto \mathsf{+.f64}\left(1, \left(\left(1 - x\right) \cdot \left(-1 \cdot \color{blue}{y}\right)\right)\right) \]
    22. associate-*r*N/A

      \[\leadsto \mathsf{+.f64}\left(1, \left(\left(\left(1 - x\right) \cdot -1\right) \cdot \color{blue}{y}\right)\right) \]
    23. *-commutativeN/A

      \[\leadsto \mathsf{+.f64}\left(1, \left(y \cdot \color{blue}{\left(\left(1 - x\right) \cdot -1\right)}\right)\right) \]
    24. *-lowering-*.f64N/A

      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \color{blue}{\left(\left(1 - x\right) \cdot -1\right)}\right)\right) \]
  3. Simplified100.0%

    \[\leadsto \color{blue}{1 + y \cdot \left(x + -1\right)} \]
  4. Add Preprocessing
  5. Add Preprocessing

Alternative 2: 98.5% accurate, 0.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := y \cdot \left(x + -1\right)\\ \mathbf{if}\;1 - y \leq -2 \cdot 10^{+14}:\\ \;\;\;\;t\_0\\ \mathbf{elif}\;1 - y \leq 1.00005:\\ \;\;\;\;1 + y \cdot x\\ \mathbf{else}:\\ \;\;\;\;t\_0\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (let* ((t_0 (* y (+ x -1.0))))
   (if (<= (- 1.0 y) -2e+14)
     t_0
     (if (<= (- 1.0 y) 1.00005) (+ 1.0 (* y x)) t_0))))
double code(double x, double y) {
	double t_0 = y * (x + -1.0);
	double tmp;
	if ((1.0 - y) <= -2e+14) {
		tmp = t_0;
	} else if ((1.0 - y) <= 1.00005) {
		tmp = 1.0 + (y * x);
	} else {
		tmp = t_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 = y * (x + (-1.0d0))
    if ((1.0d0 - y) <= (-2d+14)) then
        tmp = t_0
    else if ((1.0d0 - y) <= 1.00005d0) then
        tmp = 1.0d0 + (y * x)
    else
        tmp = t_0
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double t_0 = y * (x + -1.0);
	double tmp;
	if ((1.0 - y) <= -2e+14) {
		tmp = t_0;
	} else if ((1.0 - y) <= 1.00005) {
		tmp = 1.0 + (y * x);
	} else {
		tmp = t_0;
	}
	return tmp;
}
def code(x, y):
	t_0 = y * (x + -1.0)
	tmp = 0
	if (1.0 - y) <= -2e+14:
		tmp = t_0
	elif (1.0 - y) <= 1.00005:
		tmp = 1.0 + (y * x)
	else:
		tmp = t_0
	return tmp
function code(x, y)
	t_0 = Float64(y * Float64(x + -1.0))
	tmp = 0.0
	if (Float64(1.0 - y) <= -2e+14)
		tmp = t_0;
	elseif (Float64(1.0 - y) <= 1.00005)
		tmp = Float64(1.0 + Float64(y * x));
	else
		tmp = t_0;
	end
	return tmp
end
function tmp_2 = code(x, y)
	t_0 = y * (x + -1.0);
	tmp = 0.0;
	if ((1.0 - y) <= -2e+14)
		tmp = t_0;
	elseif ((1.0 - y) <= 1.00005)
		tmp = 1.0 + (y * x);
	else
		tmp = t_0;
	end
	tmp_2 = tmp;
end
code[x_, y_] := Block[{t$95$0 = N[(y * N[(x + -1.0), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[N[(1.0 - y), $MachinePrecision], -2e+14], t$95$0, If[LessEqual[N[(1.0 - y), $MachinePrecision], 1.00005], N[(1.0 + N[(y * x), $MachinePrecision]), $MachinePrecision], t$95$0]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := y \cdot \left(x + -1\right)\\
\mathbf{if}\;1 - y \leq -2 \cdot 10^{+14}:\\
\;\;\;\;t\_0\\

\mathbf{elif}\;1 - y \leq 1.00005:\\
\;\;\;\;1 + y \cdot x\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (-.f64 #s(literal 1 binary64) y) < -2e14 or 1.00005000000000011 < (-.f64 #s(literal 1 binary64) y)

    1. Initial program 99.8%

      \[x + \left(1 - x\right) \cdot \left(1 - y\right) \]
    2. Step-by-step derivation
      1. sub-negN/A

        \[\leadsto x + \left(1 - x\right) \cdot \left(1 + \color{blue}{\left(\mathsf{neg}\left(y\right)\right)}\right) \]
      2. distribute-rgt-inN/A

        \[\leadsto x + \left(1 \cdot \left(1 - x\right) + \color{blue}{\left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)}\right) \]
      3. sub-negN/A

        \[\leadsto x + \left(1 \cdot \left(1 + \left(\mathsf{neg}\left(x\right)\right)\right) + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      4. +-commutativeN/A

        \[\leadsto x + \left(1 \cdot \left(\left(\mathsf{neg}\left(x\right)\right) + 1\right) + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      5. distribute-lft-inN/A

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

        \[\leadsto x + \left(\left(1 \cdot \left(\mathsf{neg}\left(x\right)\right) + 1\right) + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      7. associate-+l+N/A

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

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

        \[\leadsto \left(x + \left(\mathsf{neg}\left(x\right)\right)\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      10. neg-mul-1N/A

        \[\leadsto \left(x + -1 \cdot x\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      11. distribute-rgt1-inN/A

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

        \[\leadsto 0 \cdot x + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      13. metadata-evalN/A

        \[\leadsto \left(0 \cdot -1\right) \cdot x + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      14. associate-*r*N/A

        \[\leadsto 0 \cdot \left(-1 \cdot x\right) + \left(\color{blue}{1} + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      15. neg-mul-1N/A

        \[\leadsto 0 \cdot \left(\mathsf{neg}\left(x\right)\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      16. *-lft-identityN/A

        \[\leadsto 0 \cdot \left(1 \cdot \left(\mathsf{neg}\left(x\right)\right)\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      17. mul0-lftN/A

        \[\leadsto 0 + \left(\color{blue}{1} + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      18. +-lft-identityN/A

        \[\leadsto 1 + \color{blue}{\left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)} \]
      19. +-lowering-+.f64N/A

        \[\leadsto \mathsf{+.f64}\left(1, \color{blue}{\left(\left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right)}\right) \]
      20. *-commutativeN/A

        \[\leadsto \mathsf{+.f64}\left(1, \left(\left(1 - x\right) \cdot \color{blue}{\left(\mathsf{neg}\left(y\right)\right)}\right)\right) \]
      21. neg-mul-1N/A

        \[\leadsto \mathsf{+.f64}\left(1, \left(\left(1 - x\right) \cdot \left(-1 \cdot \color{blue}{y}\right)\right)\right) \]
      22. associate-*r*N/A

        \[\leadsto \mathsf{+.f64}\left(1, \left(\left(\left(1 - x\right) \cdot -1\right) \cdot \color{blue}{y}\right)\right) \]
      23. *-commutativeN/A

        \[\leadsto \mathsf{+.f64}\left(1, \left(y \cdot \color{blue}{\left(\left(1 - x\right) \cdot -1\right)}\right)\right) \]
      24. *-lowering-*.f64N/A

        \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \color{blue}{\left(\left(1 - x\right) \cdot -1\right)}\right)\right) \]
    3. Simplified100.0%

      \[\leadsto \color{blue}{1 + y \cdot \left(x + -1\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf

      \[\leadsto \color{blue}{y \cdot \left(x - 1\right)} \]
    6. Step-by-step derivation
      1. *-lowering-*.f64N/A

        \[\leadsto \mathsf{*.f64}\left(y, \color{blue}{\left(x - 1\right)}\right) \]
      2. sub-negN/A

        \[\leadsto \mathsf{*.f64}\left(y, \left(x + \color{blue}{\left(\mathsf{neg}\left(1\right)\right)}\right)\right) \]
      3. metadata-evalN/A

        \[\leadsto \mathsf{*.f64}\left(y, \left(x + -1\right)\right) \]
      4. +-lowering-+.f6499.2%

        \[\leadsto \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(x, \color{blue}{-1}\right)\right) \]
    7. Simplified99.2%

      \[\leadsto \color{blue}{y \cdot \left(x + -1\right)} \]

    if -2e14 < (-.f64 #s(literal 1 binary64) y) < 1.00005000000000011

    1. Initial program 52.7%

      \[x + \left(1 - x\right) \cdot \left(1 - y\right) \]
    2. Step-by-step derivation
      1. sub-negN/A

        \[\leadsto x + \left(1 - x\right) \cdot \left(1 + \color{blue}{\left(\mathsf{neg}\left(y\right)\right)}\right) \]
      2. distribute-rgt-inN/A

        \[\leadsto x + \left(1 \cdot \left(1 - x\right) + \color{blue}{\left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)}\right) \]
      3. sub-negN/A

        \[\leadsto x + \left(1 \cdot \left(1 + \left(\mathsf{neg}\left(x\right)\right)\right) + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      4. +-commutativeN/A

        \[\leadsto x + \left(1 \cdot \left(\left(\mathsf{neg}\left(x\right)\right) + 1\right) + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      5. distribute-lft-inN/A

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

        \[\leadsto x + \left(\left(1 \cdot \left(\mathsf{neg}\left(x\right)\right) + 1\right) + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      7. associate-+l+N/A

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

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

        \[\leadsto \left(x + \left(\mathsf{neg}\left(x\right)\right)\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      10. neg-mul-1N/A

        \[\leadsto \left(x + -1 \cdot x\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      11. distribute-rgt1-inN/A

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

        \[\leadsto 0 \cdot x + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      13. metadata-evalN/A

        \[\leadsto \left(0 \cdot -1\right) \cdot x + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      14. associate-*r*N/A

        \[\leadsto 0 \cdot \left(-1 \cdot x\right) + \left(\color{blue}{1} + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      15. neg-mul-1N/A

        \[\leadsto 0 \cdot \left(\mathsf{neg}\left(x\right)\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      16. *-lft-identityN/A

        \[\leadsto 0 \cdot \left(1 \cdot \left(\mathsf{neg}\left(x\right)\right)\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      17. mul0-lftN/A

        \[\leadsto 0 + \left(\color{blue}{1} + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      18. +-lft-identityN/A

        \[\leadsto 1 + \color{blue}{\left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)} \]
      19. +-lowering-+.f64N/A

        \[\leadsto \mathsf{+.f64}\left(1, \color{blue}{\left(\left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right)}\right) \]
      20. *-commutativeN/A

        \[\leadsto \mathsf{+.f64}\left(1, \left(\left(1 - x\right) \cdot \color{blue}{\left(\mathsf{neg}\left(y\right)\right)}\right)\right) \]
      21. neg-mul-1N/A

        \[\leadsto \mathsf{+.f64}\left(1, \left(\left(1 - x\right) \cdot \left(-1 \cdot \color{blue}{y}\right)\right)\right) \]
      22. associate-*r*N/A

        \[\leadsto \mathsf{+.f64}\left(1, \left(\left(\left(1 - x\right) \cdot -1\right) \cdot \color{blue}{y}\right)\right) \]
      23. *-commutativeN/A

        \[\leadsto \mathsf{+.f64}\left(1, \left(y \cdot \color{blue}{\left(\left(1 - x\right) \cdot -1\right)}\right)\right) \]
      24. *-lowering-*.f64N/A

        \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \color{blue}{\left(\left(1 - x\right) \cdot -1\right)}\right)\right) \]
    3. Simplified100.0%

      \[\leadsto \color{blue}{1 + y \cdot \left(x + -1\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf

      \[\leadsto \mathsf{+.f64}\left(1, \color{blue}{\left(x \cdot y\right)}\right) \]
    6. Step-by-step derivation
      1. *-commutativeN/A

        \[\leadsto \mathsf{+.f64}\left(1, \left(y \cdot \color{blue}{x}\right)\right) \]
      2. *-lowering-*.f6499.4%

        \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \color{blue}{x}\right)\right) \]
    7. Simplified99.4%

      \[\leadsto 1 + \color{blue}{y \cdot x} \]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 3: 85.6% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := y \cdot \left(x + -1\right)\\ \mathbf{if}\;y \leq -3.3 \cdot 10^{-81}:\\ \;\;\;\;t\_0\\ \mathbf{elif}\;y \leq 1.22 \cdot 10^{-51}:\\ \;\;\;\;1\\ \mathbf{else}:\\ \;\;\;\;t\_0\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (let* ((t_0 (* y (+ x -1.0))))
   (if (<= y -3.3e-81) t_0 (if (<= y 1.22e-51) 1.0 t_0))))
double code(double x, double y) {
	double t_0 = y * (x + -1.0);
	double tmp;
	if (y <= -3.3e-81) {
		tmp = t_0;
	} else if (y <= 1.22e-51) {
		tmp = 1.0;
	} else {
		tmp = t_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 = y * (x + (-1.0d0))
    if (y <= (-3.3d-81)) then
        tmp = t_0
    else if (y <= 1.22d-51) then
        tmp = 1.0d0
    else
        tmp = t_0
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double t_0 = y * (x + -1.0);
	double tmp;
	if (y <= -3.3e-81) {
		tmp = t_0;
	} else if (y <= 1.22e-51) {
		tmp = 1.0;
	} else {
		tmp = t_0;
	}
	return tmp;
}
def code(x, y):
	t_0 = y * (x + -1.0)
	tmp = 0
	if y <= -3.3e-81:
		tmp = t_0
	elif y <= 1.22e-51:
		tmp = 1.0
	else:
		tmp = t_0
	return tmp
function code(x, y)
	t_0 = Float64(y * Float64(x + -1.0))
	tmp = 0.0
	if (y <= -3.3e-81)
		tmp = t_0;
	elseif (y <= 1.22e-51)
		tmp = 1.0;
	else
		tmp = t_0;
	end
	return tmp
end
function tmp_2 = code(x, y)
	t_0 = y * (x + -1.0);
	tmp = 0.0;
	if (y <= -3.3e-81)
		tmp = t_0;
	elseif (y <= 1.22e-51)
		tmp = 1.0;
	else
		tmp = t_0;
	end
	tmp_2 = tmp;
end
code[x_, y_] := Block[{t$95$0 = N[(y * N[(x + -1.0), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[y, -3.3e-81], t$95$0, If[LessEqual[y, 1.22e-51], 1.0, t$95$0]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := y \cdot \left(x + -1\right)\\
\mathbf{if}\;y \leq -3.3 \cdot 10^{-81}:\\
\;\;\;\;t\_0\\

\mathbf{elif}\;y \leq 1.22 \cdot 10^{-51}:\\
\;\;\;\;1\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -3.29999999999999987e-81 or 1.21999999999999998e-51 < y

    1. Initial program 88.0%

      \[x + \left(1 - x\right) \cdot \left(1 - y\right) \]
    2. Step-by-step derivation
      1. sub-negN/A

        \[\leadsto x + \left(1 - x\right) \cdot \left(1 + \color{blue}{\left(\mathsf{neg}\left(y\right)\right)}\right) \]
      2. distribute-rgt-inN/A

        \[\leadsto x + \left(1 \cdot \left(1 - x\right) + \color{blue}{\left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)}\right) \]
      3. sub-negN/A

        \[\leadsto x + \left(1 \cdot \left(1 + \left(\mathsf{neg}\left(x\right)\right)\right) + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      4. +-commutativeN/A

        \[\leadsto x + \left(1 \cdot \left(\left(\mathsf{neg}\left(x\right)\right) + 1\right) + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      5. distribute-lft-inN/A

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

        \[\leadsto x + \left(\left(1 \cdot \left(\mathsf{neg}\left(x\right)\right) + 1\right) + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      7. associate-+l+N/A

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

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

        \[\leadsto \left(x + \left(\mathsf{neg}\left(x\right)\right)\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      10. neg-mul-1N/A

        \[\leadsto \left(x + -1 \cdot x\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      11. distribute-rgt1-inN/A

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

        \[\leadsto 0 \cdot x + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      13. metadata-evalN/A

        \[\leadsto \left(0 \cdot -1\right) \cdot x + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      14. associate-*r*N/A

        \[\leadsto 0 \cdot \left(-1 \cdot x\right) + \left(\color{blue}{1} + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      15. neg-mul-1N/A

        \[\leadsto 0 \cdot \left(\mathsf{neg}\left(x\right)\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      16. *-lft-identityN/A

        \[\leadsto 0 \cdot \left(1 \cdot \left(\mathsf{neg}\left(x\right)\right)\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      17. mul0-lftN/A

        \[\leadsto 0 + \left(\color{blue}{1} + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      18. +-lft-identityN/A

        \[\leadsto 1 + \color{blue}{\left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)} \]
      19. +-lowering-+.f64N/A

        \[\leadsto \mathsf{+.f64}\left(1, \color{blue}{\left(\left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right)}\right) \]
      20. *-commutativeN/A

        \[\leadsto \mathsf{+.f64}\left(1, \left(\left(1 - x\right) \cdot \color{blue}{\left(\mathsf{neg}\left(y\right)\right)}\right)\right) \]
      21. neg-mul-1N/A

        \[\leadsto \mathsf{+.f64}\left(1, \left(\left(1 - x\right) \cdot \left(-1 \cdot \color{blue}{y}\right)\right)\right) \]
      22. associate-*r*N/A

        \[\leadsto \mathsf{+.f64}\left(1, \left(\left(\left(1 - x\right) \cdot -1\right) \cdot \color{blue}{y}\right)\right) \]
      23. *-commutativeN/A

        \[\leadsto \mathsf{+.f64}\left(1, \left(y \cdot \color{blue}{\left(\left(1 - x\right) \cdot -1\right)}\right)\right) \]
      24. *-lowering-*.f64N/A

        \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \color{blue}{\left(\left(1 - x\right) \cdot -1\right)}\right)\right) \]
    3. Simplified100.0%

      \[\leadsto \color{blue}{1 + y \cdot \left(x + -1\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf

      \[\leadsto \color{blue}{y \cdot \left(x - 1\right)} \]
    6. Step-by-step derivation
      1. *-lowering-*.f64N/A

        \[\leadsto \mathsf{*.f64}\left(y, \color{blue}{\left(x - 1\right)}\right) \]
      2. sub-negN/A

        \[\leadsto \mathsf{*.f64}\left(y, \left(x + \color{blue}{\left(\mathsf{neg}\left(1\right)\right)}\right)\right) \]
      3. metadata-evalN/A

        \[\leadsto \mathsf{*.f64}\left(y, \left(x + -1\right)\right) \]
      4. +-lowering-+.f6488.6%

        \[\leadsto \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(x, \color{blue}{-1}\right)\right) \]
    7. Simplified88.6%

      \[\leadsto \color{blue}{y \cdot \left(x + -1\right)} \]

    if -3.29999999999999987e-81 < y < 1.21999999999999998e-51

    1. Initial program 52.0%

      \[x + \left(1 - x\right) \cdot \left(1 - y\right) \]
    2. Step-by-step derivation
      1. sub-negN/A

        \[\leadsto x + \left(1 - x\right) \cdot \left(1 + \color{blue}{\left(\mathsf{neg}\left(y\right)\right)}\right) \]
      2. distribute-rgt-inN/A

        \[\leadsto x + \left(1 \cdot \left(1 - x\right) + \color{blue}{\left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)}\right) \]
      3. sub-negN/A

        \[\leadsto x + \left(1 \cdot \left(1 + \left(\mathsf{neg}\left(x\right)\right)\right) + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      4. +-commutativeN/A

        \[\leadsto x + \left(1 \cdot \left(\left(\mathsf{neg}\left(x\right)\right) + 1\right) + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      5. distribute-lft-inN/A

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

        \[\leadsto x + \left(\left(1 \cdot \left(\mathsf{neg}\left(x\right)\right) + 1\right) + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      7. associate-+l+N/A

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

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

        \[\leadsto \left(x + \left(\mathsf{neg}\left(x\right)\right)\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      10. neg-mul-1N/A

        \[\leadsto \left(x + -1 \cdot x\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      11. distribute-rgt1-inN/A

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

        \[\leadsto 0 \cdot x + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      13. metadata-evalN/A

        \[\leadsto \left(0 \cdot -1\right) \cdot x + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      14. associate-*r*N/A

        \[\leadsto 0 \cdot \left(-1 \cdot x\right) + \left(\color{blue}{1} + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      15. neg-mul-1N/A

        \[\leadsto 0 \cdot \left(\mathsf{neg}\left(x\right)\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      16. *-lft-identityN/A

        \[\leadsto 0 \cdot \left(1 \cdot \left(\mathsf{neg}\left(x\right)\right)\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      17. mul0-lftN/A

        \[\leadsto 0 + \left(\color{blue}{1} + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
      18. +-lft-identityN/A

        \[\leadsto 1 + \color{blue}{\left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)} \]
      19. +-lowering-+.f64N/A

        \[\leadsto \mathsf{+.f64}\left(1, \color{blue}{\left(\left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right)}\right) \]
      20. *-commutativeN/A

        \[\leadsto \mathsf{+.f64}\left(1, \left(\left(1 - x\right) \cdot \color{blue}{\left(\mathsf{neg}\left(y\right)\right)}\right)\right) \]
      21. neg-mul-1N/A

        \[\leadsto \mathsf{+.f64}\left(1, \left(\left(1 - x\right) \cdot \left(-1 \cdot \color{blue}{y}\right)\right)\right) \]
      22. associate-*r*N/A

        \[\leadsto \mathsf{+.f64}\left(1, \left(\left(\left(1 - x\right) \cdot -1\right) \cdot \color{blue}{y}\right)\right) \]
      23. *-commutativeN/A

        \[\leadsto \mathsf{+.f64}\left(1, \left(y \cdot \color{blue}{\left(\left(1 - x\right) \cdot -1\right)}\right)\right) \]
      24. *-lowering-*.f64N/A

        \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \color{blue}{\left(\left(1 - x\right) \cdot -1\right)}\right)\right) \]
    3. Simplified100.0%

      \[\leadsto \color{blue}{1 + y \cdot \left(x + -1\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around 0

      \[\leadsto \color{blue}{1} \]
    6. Step-by-step derivation
      1. Simplified84.3%

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

    Alternative 4: 86.9% accurate, 0.7× speedup?

    \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -15000000000:\\ \;\;\;\;y \cdot x\\ \mathbf{elif}\;x \leq 2.05 \cdot 10^{+37}:\\ \;\;\;\;1 - y\\ \mathbf{else}:\\ \;\;\;\;y \cdot x\\ \end{array} \end{array} \]
    (FPCore (x y)
     :precision binary64
     (if (<= x -15000000000.0) (* y x) (if (<= x 2.05e+37) (- 1.0 y) (* y x))))
    double code(double x, double y) {
    	double tmp;
    	if (x <= -15000000000.0) {
    		tmp = y * x;
    	} else if (x <= 2.05e+37) {
    		tmp = 1.0 - y;
    	} else {
    		tmp = y * x;
    	}
    	return tmp;
    }
    
    real(8) function code(x, y)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        real(8) :: tmp
        if (x <= (-15000000000.0d0)) then
            tmp = y * x
        else if (x <= 2.05d+37) then
            tmp = 1.0d0 - y
        else
            tmp = y * x
        end if
        code = tmp
    end function
    
    public static double code(double x, double y) {
    	double tmp;
    	if (x <= -15000000000.0) {
    		tmp = y * x;
    	} else if (x <= 2.05e+37) {
    		tmp = 1.0 - y;
    	} else {
    		tmp = y * x;
    	}
    	return tmp;
    }
    
    def code(x, y):
    	tmp = 0
    	if x <= -15000000000.0:
    		tmp = y * x
    	elif x <= 2.05e+37:
    		tmp = 1.0 - y
    	else:
    		tmp = y * x
    	return tmp
    
    function code(x, y)
    	tmp = 0.0
    	if (x <= -15000000000.0)
    		tmp = Float64(y * x);
    	elseif (x <= 2.05e+37)
    		tmp = Float64(1.0 - y);
    	else
    		tmp = Float64(y * x);
    	end
    	return tmp
    end
    
    function tmp_2 = code(x, y)
    	tmp = 0.0;
    	if (x <= -15000000000.0)
    		tmp = y * x;
    	elseif (x <= 2.05e+37)
    		tmp = 1.0 - y;
    	else
    		tmp = y * x;
    	end
    	tmp_2 = tmp;
    end
    
    code[x_, y_] := If[LessEqual[x, -15000000000.0], N[(y * x), $MachinePrecision], If[LessEqual[x, 2.05e+37], N[(1.0 - y), $MachinePrecision], N[(y * x), $MachinePrecision]]]
    
    \begin{array}{l}
    
    \\
    \begin{array}{l}
    \mathbf{if}\;x \leq -15000000000:\\
    \;\;\;\;y \cdot x\\
    
    \mathbf{elif}\;x \leq 2.05 \cdot 10^{+37}:\\
    \;\;\;\;1 - y\\
    
    \mathbf{else}:\\
    \;\;\;\;y \cdot x\\
    
    
    \end{array}
    \end{array}
    
    Derivation
    1. Split input into 2 regimes
    2. if x < -1.5e10 or 2.0499999999999999e37 < x

      1. Initial program 50.0%

        \[x + \left(1 - x\right) \cdot \left(1 - y\right) \]
      2. Step-by-step derivation
        1. sub-negN/A

          \[\leadsto x + \left(1 - x\right) \cdot \left(1 + \color{blue}{\left(\mathsf{neg}\left(y\right)\right)}\right) \]
        2. distribute-rgt-inN/A

          \[\leadsto x + \left(1 \cdot \left(1 - x\right) + \color{blue}{\left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)}\right) \]
        3. sub-negN/A

          \[\leadsto x + \left(1 \cdot \left(1 + \left(\mathsf{neg}\left(x\right)\right)\right) + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        4. +-commutativeN/A

          \[\leadsto x + \left(1 \cdot \left(\left(\mathsf{neg}\left(x\right)\right) + 1\right) + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        5. distribute-lft-inN/A

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

          \[\leadsto x + \left(\left(1 \cdot \left(\mathsf{neg}\left(x\right)\right) + 1\right) + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        7. associate-+l+N/A

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

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

          \[\leadsto \left(x + \left(\mathsf{neg}\left(x\right)\right)\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        10. neg-mul-1N/A

          \[\leadsto \left(x + -1 \cdot x\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        11. distribute-rgt1-inN/A

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

          \[\leadsto 0 \cdot x + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        13. metadata-evalN/A

          \[\leadsto \left(0 \cdot -1\right) \cdot x + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        14. associate-*r*N/A

          \[\leadsto 0 \cdot \left(-1 \cdot x\right) + \left(\color{blue}{1} + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        15. neg-mul-1N/A

          \[\leadsto 0 \cdot \left(\mathsf{neg}\left(x\right)\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        16. *-lft-identityN/A

          \[\leadsto 0 \cdot \left(1 \cdot \left(\mathsf{neg}\left(x\right)\right)\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        17. mul0-lftN/A

          \[\leadsto 0 + \left(\color{blue}{1} + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        18. +-lft-identityN/A

          \[\leadsto 1 + \color{blue}{\left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)} \]
        19. +-lowering-+.f64N/A

          \[\leadsto \mathsf{+.f64}\left(1, \color{blue}{\left(\left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right)}\right) \]
        20. *-commutativeN/A

          \[\leadsto \mathsf{+.f64}\left(1, \left(\left(1 - x\right) \cdot \color{blue}{\left(\mathsf{neg}\left(y\right)\right)}\right)\right) \]
        21. neg-mul-1N/A

          \[\leadsto \mathsf{+.f64}\left(1, \left(\left(1 - x\right) \cdot \left(-1 \cdot \color{blue}{y}\right)\right)\right) \]
        22. associate-*r*N/A

          \[\leadsto \mathsf{+.f64}\left(1, \left(\left(\left(1 - x\right) \cdot -1\right) \cdot \color{blue}{y}\right)\right) \]
        23. *-commutativeN/A

          \[\leadsto \mathsf{+.f64}\left(1, \left(y \cdot \color{blue}{\left(\left(1 - x\right) \cdot -1\right)}\right)\right) \]
        24. *-lowering-*.f64N/A

          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \color{blue}{\left(\left(1 - x\right) \cdot -1\right)}\right)\right) \]
      3. Simplified100.0%

        \[\leadsto \color{blue}{1 + y \cdot \left(x + -1\right)} \]
      4. Add Preprocessing
      5. Taylor expanded in x around inf

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

          \[\leadsto y \cdot \color{blue}{x} \]
        2. *-lowering-*.f6475.7%

          \[\leadsto \mathsf{*.f64}\left(y, \color{blue}{x}\right) \]
      7. Simplified75.7%

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

      if -1.5e10 < x < 2.0499999999999999e37

      1. Initial program 97.0%

        \[x + \left(1 - x\right) \cdot \left(1 - y\right) \]
      2. Step-by-step derivation
        1. sub-negN/A

          \[\leadsto x + \left(1 - x\right) \cdot \left(1 + \color{blue}{\left(\mathsf{neg}\left(y\right)\right)}\right) \]
        2. distribute-rgt-inN/A

          \[\leadsto x + \left(1 \cdot \left(1 - x\right) + \color{blue}{\left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)}\right) \]
        3. sub-negN/A

          \[\leadsto x + \left(1 \cdot \left(1 + \left(\mathsf{neg}\left(x\right)\right)\right) + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        4. +-commutativeN/A

          \[\leadsto x + \left(1 \cdot \left(\left(\mathsf{neg}\left(x\right)\right) + 1\right) + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        5. distribute-lft-inN/A

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

          \[\leadsto x + \left(\left(1 \cdot \left(\mathsf{neg}\left(x\right)\right) + 1\right) + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        7. associate-+l+N/A

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

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

          \[\leadsto \left(x + \left(\mathsf{neg}\left(x\right)\right)\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        10. neg-mul-1N/A

          \[\leadsto \left(x + -1 \cdot x\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        11. distribute-rgt1-inN/A

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

          \[\leadsto 0 \cdot x + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        13. metadata-evalN/A

          \[\leadsto \left(0 \cdot -1\right) \cdot x + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        14. associate-*r*N/A

          \[\leadsto 0 \cdot \left(-1 \cdot x\right) + \left(\color{blue}{1} + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        15. neg-mul-1N/A

          \[\leadsto 0 \cdot \left(\mathsf{neg}\left(x\right)\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        16. *-lft-identityN/A

          \[\leadsto 0 \cdot \left(1 \cdot \left(\mathsf{neg}\left(x\right)\right)\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        17. mul0-lftN/A

          \[\leadsto 0 + \left(\color{blue}{1} + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        18. +-lft-identityN/A

          \[\leadsto 1 + \color{blue}{\left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)} \]
        19. +-lowering-+.f64N/A

          \[\leadsto \mathsf{+.f64}\left(1, \color{blue}{\left(\left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right)}\right) \]
        20. *-commutativeN/A

          \[\leadsto \mathsf{+.f64}\left(1, \left(\left(1 - x\right) \cdot \color{blue}{\left(\mathsf{neg}\left(y\right)\right)}\right)\right) \]
        21. neg-mul-1N/A

          \[\leadsto \mathsf{+.f64}\left(1, \left(\left(1 - x\right) \cdot \left(-1 \cdot \color{blue}{y}\right)\right)\right) \]
        22. associate-*r*N/A

          \[\leadsto \mathsf{+.f64}\left(1, \left(\left(\left(1 - x\right) \cdot -1\right) \cdot \color{blue}{y}\right)\right) \]
        23. *-commutativeN/A

          \[\leadsto \mathsf{+.f64}\left(1, \left(y \cdot \color{blue}{\left(\left(1 - x\right) \cdot -1\right)}\right)\right) \]
        24. *-lowering-*.f64N/A

          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \color{blue}{\left(\left(1 - x\right) \cdot -1\right)}\right)\right) \]
      3. Simplified100.0%

        \[\leadsto \color{blue}{1 + y \cdot \left(x + -1\right)} \]
      4. Add Preprocessing
      5. Taylor expanded in x around 0

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

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

          \[\leadsto 1 - \color{blue}{y} \]
        3. --lowering--.f6495.9%

          \[\leadsto \mathsf{\_.f64}\left(1, \color{blue}{y}\right) \]
      7. Simplified95.9%

        \[\leadsto \color{blue}{1 - y} \]
    3. Recombined 2 regimes into one program.
    4. Add Preprocessing

    Alternative 5: 62.6% accurate, 0.7× speedup?

    \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -1.2 \cdot 10^{-11}:\\ \;\;\;\;y \cdot x\\ \mathbf{elif}\;y \leq 2.35 \cdot 10^{-48}:\\ \;\;\;\;1\\ \mathbf{else}:\\ \;\;\;\;y \cdot x\\ \end{array} \end{array} \]
    (FPCore (x y)
     :precision binary64
     (if (<= y -1.2e-11) (* y x) (if (<= y 2.35e-48) 1.0 (* y x))))
    double code(double x, double y) {
    	double tmp;
    	if (y <= -1.2e-11) {
    		tmp = y * x;
    	} else if (y <= 2.35e-48) {
    		tmp = 1.0;
    	} else {
    		tmp = y * x;
    	}
    	return tmp;
    }
    
    real(8) function code(x, y)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        real(8) :: tmp
        if (y <= (-1.2d-11)) then
            tmp = y * x
        else if (y <= 2.35d-48) then
            tmp = 1.0d0
        else
            tmp = y * x
        end if
        code = tmp
    end function
    
    public static double code(double x, double y) {
    	double tmp;
    	if (y <= -1.2e-11) {
    		tmp = y * x;
    	} else if (y <= 2.35e-48) {
    		tmp = 1.0;
    	} else {
    		tmp = y * x;
    	}
    	return tmp;
    }
    
    def code(x, y):
    	tmp = 0
    	if y <= -1.2e-11:
    		tmp = y * x
    	elif y <= 2.35e-48:
    		tmp = 1.0
    	else:
    		tmp = y * x
    	return tmp
    
    function code(x, y)
    	tmp = 0.0
    	if (y <= -1.2e-11)
    		tmp = Float64(y * x);
    	elseif (y <= 2.35e-48)
    		tmp = 1.0;
    	else
    		tmp = Float64(y * x);
    	end
    	return tmp
    end
    
    function tmp_2 = code(x, y)
    	tmp = 0.0;
    	if (y <= -1.2e-11)
    		tmp = y * x;
    	elseif (y <= 2.35e-48)
    		tmp = 1.0;
    	else
    		tmp = y * x;
    	end
    	tmp_2 = tmp;
    end
    
    code[x_, y_] := If[LessEqual[y, -1.2e-11], N[(y * x), $MachinePrecision], If[LessEqual[y, 2.35e-48], 1.0, N[(y * x), $MachinePrecision]]]
    
    \begin{array}{l}
    
    \\
    \begin{array}{l}
    \mathbf{if}\;y \leq -1.2 \cdot 10^{-11}:\\
    \;\;\;\;y \cdot x\\
    
    \mathbf{elif}\;y \leq 2.35 \cdot 10^{-48}:\\
    \;\;\;\;1\\
    
    \mathbf{else}:\\
    \;\;\;\;y \cdot x\\
    
    
    \end{array}
    \end{array}
    
    Derivation
    1. Split input into 2 regimes
    2. if y < -1.2000000000000001e-11 or 2.3499999999999999e-48 < y

      1. Initial program 96.0%

        \[x + \left(1 - x\right) \cdot \left(1 - y\right) \]
      2. Step-by-step derivation
        1. sub-negN/A

          \[\leadsto x + \left(1 - x\right) \cdot \left(1 + \color{blue}{\left(\mathsf{neg}\left(y\right)\right)}\right) \]
        2. distribute-rgt-inN/A

          \[\leadsto x + \left(1 \cdot \left(1 - x\right) + \color{blue}{\left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)}\right) \]
        3. sub-negN/A

          \[\leadsto x + \left(1 \cdot \left(1 + \left(\mathsf{neg}\left(x\right)\right)\right) + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        4. +-commutativeN/A

          \[\leadsto x + \left(1 \cdot \left(\left(\mathsf{neg}\left(x\right)\right) + 1\right) + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        5. distribute-lft-inN/A

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

          \[\leadsto x + \left(\left(1 \cdot \left(\mathsf{neg}\left(x\right)\right) + 1\right) + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        7. associate-+l+N/A

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

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

          \[\leadsto \left(x + \left(\mathsf{neg}\left(x\right)\right)\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        10. neg-mul-1N/A

          \[\leadsto \left(x + -1 \cdot x\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        11. distribute-rgt1-inN/A

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

          \[\leadsto 0 \cdot x + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        13. metadata-evalN/A

          \[\leadsto \left(0 \cdot -1\right) \cdot x + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        14. associate-*r*N/A

          \[\leadsto 0 \cdot \left(-1 \cdot x\right) + \left(\color{blue}{1} + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        15. neg-mul-1N/A

          \[\leadsto 0 \cdot \left(\mathsf{neg}\left(x\right)\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        16. *-lft-identityN/A

          \[\leadsto 0 \cdot \left(1 \cdot \left(\mathsf{neg}\left(x\right)\right)\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        17. mul0-lftN/A

          \[\leadsto 0 + \left(\color{blue}{1} + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        18. +-lft-identityN/A

          \[\leadsto 1 + \color{blue}{\left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)} \]
        19. +-lowering-+.f64N/A

          \[\leadsto \mathsf{+.f64}\left(1, \color{blue}{\left(\left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right)}\right) \]
        20. *-commutativeN/A

          \[\leadsto \mathsf{+.f64}\left(1, \left(\left(1 - x\right) \cdot \color{blue}{\left(\mathsf{neg}\left(y\right)\right)}\right)\right) \]
        21. neg-mul-1N/A

          \[\leadsto \mathsf{+.f64}\left(1, \left(\left(1 - x\right) \cdot \left(-1 \cdot \color{blue}{y}\right)\right)\right) \]
        22. associate-*r*N/A

          \[\leadsto \mathsf{+.f64}\left(1, \left(\left(\left(1 - x\right) \cdot -1\right) \cdot \color{blue}{y}\right)\right) \]
        23. *-commutativeN/A

          \[\leadsto \mathsf{+.f64}\left(1, \left(y \cdot \color{blue}{\left(\left(1 - x\right) \cdot -1\right)}\right)\right) \]
        24. *-lowering-*.f64N/A

          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \color{blue}{\left(\left(1 - x\right) \cdot -1\right)}\right)\right) \]
      3. Simplified100.0%

        \[\leadsto \color{blue}{1 + y \cdot \left(x + -1\right)} \]
      4. Add Preprocessing
      5. Taylor expanded in x around inf

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

          \[\leadsto y \cdot \color{blue}{x} \]
        2. *-lowering-*.f6454.9%

          \[\leadsto \mathsf{*.f64}\left(y, \color{blue}{x}\right) \]
      7. Simplified54.9%

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

      if -1.2000000000000001e-11 < y < 2.3499999999999999e-48

      1. Initial program 51.8%

        \[x + \left(1 - x\right) \cdot \left(1 - y\right) \]
      2. Step-by-step derivation
        1. sub-negN/A

          \[\leadsto x + \left(1 - x\right) \cdot \left(1 + \color{blue}{\left(\mathsf{neg}\left(y\right)\right)}\right) \]
        2. distribute-rgt-inN/A

          \[\leadsto x + \left(1 \cdot \left(1 - x\right) + \color{blue}{\left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)}\right) \]
        3. sub-negN/A

          \[\leadsto x + \left(1 \cdot \left(1 + \left(\mathsf{neg}\left(x\right)\right)\right) + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        4. +-commutativeN/A

          \[\leadsto x + \left(1 \cdot \left(\left(\mathsf{neg}\left(x\right)\right) + 1\right) + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        5. distribute-lft-inN/A

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

          \[\leadsto x + \left(\left(1 \cdot \left(\mathsf{neg}\left(x\right)\right) + 1\right) + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        7. associate-+l+N/A

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

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

          \[\leadsto \left(x + \left(\mathsf{neg}\left(x\right)\right)\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        10. neg-mul-1N/A

          \[\leadsto \left(x + -1 \cdot x\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        11. distribute-rgt1-inN/A

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

          \[\leadsto 0 \cdot x + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        13. metadata-evalN/A

          \[\leadsto \left(0 \cdot -1\right) \cdot x + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        14. associate-*r*N/A

          \[\leadsto 0 \cdot \left(-1 \cdot x\right) + \left(\color{blue}{1} + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        15. neg-mul-1N/A

          \[\leadsto 0 \cdot \left(\mathsf{neg}\left(x\right)\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        16. *-lft-identityN/A

          \[\leadsto 0 \cdot \left(1 \cdot \left(\mathsf{neg}\left(x\right)\right)\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        17. mul0-lftN/A

          \[\leadsto 0 + \left(\color{blue}{1} + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        18. +-lft-identityN/A

          \[\leadsto 1 + \color{blue}{\left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)} \]
        19. +-lowering-+.f64N/A

          \[\leadsto \mathsf{+.f64}\left(1, \color{blue}{\left(\left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right)}\right) \]
        20. *-commutativeN/A

          \[\leadsto \mathsf{+.f64}\left(1, \left(\left(1 - x\right) \cdot \color{blue}{\left(\mathsf{neg}\left(y\right)\right)}\right)\right) \]
        21. neg-mul-1N/A

          \[\leadsto \mathsf{+.f64}\left(1, \left(\left(1 - x\right) \cdot \left(-1 \cdot \color{blue}{y}\right)\right)\right) \]
        22. associate-*r*N/A

          \[\leadsto \mathsf{+.f64}\left(1, \left(\left(\left(1 - x\right) \cdot -1\right) \cdot \color{blue}{y}\right)\right) \]
        23. *-commutativeN/A

          \[\leadsto \mathsf{+.f64}\left(1, \left(y \cdot \color{blue}{\left(\left(1 - x\right) \cdot -1\right)}\right)\right) \]
        24. *-lowering-*.f64N/A

          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \color{blue}{\left(\left(1 - x\right) \cdot -1\right)}\right)\right) \]
      3. Simplified100.0%

        \[\leadsto \color{blue}{1 + y \cdot \left(x + -1\right)} \]
      4. Add Preprocessing
      5. Taylor expanded in y around 0

        \[\leadsto \color{blue}{1} \]
      6. Step-by-step derivation
        1. Simplified77.1%

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

      Alternative 6: 38.9% accurate, 9.0× 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 74.1%

        \[x + \left(1 - x\right) \cdot \left(1 - y\right) \]
      2. Step-by-step derivation
        1. sub-negN/A

          \[\leadsto x + \left(1 - x\right) \cdot \left(1 + \color{blue}{\left(\mathsf{neg}\left(y\right)\right)}\right) \]
        2. distribute-rgt-inN/A

          \[\leadsto x + \left(1 \cdot \left(1 - x\right) + \color{blue}{\left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)}\right) \]
        3. sub-negN/A

          \[\leadsto x + \left(1 \cdot \left(1 + \left(\mathsf{neg}\left(x\right)\right)\right) + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        4. +-commutativeN/A

          \[\leadsto x + \left(1 \cdot \left(\left(\mathsf{neg}\left(x\right)\right) + 1\right) + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        5. distribute-lft-inN/A

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

          \[\leadsto x + \left(\left(1 \cdot \left(\mathsf{neg}\left(x\right)\right) + 1\right) + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        7. associate-+l+N/A

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

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

          \[\leadsto \left(x + \left(\mathsf{neg}\left(x\right)\right)\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        10. neg-mul-1N/A

          \[\leadsto \left(x + -1 \cdot x\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        11. distribute-rgt1-inN/A

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

          \[\leadsto 0 \cdot x + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        13. metadata-evalN/A

          \[\leadsto \left(0 \cdot -1\right) \cdot x + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        14. associate-*r*N/A

          \[\leadsto 0 \cdot \left(-1 \cdot x\right) + \left(\color{blue}{1} + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        15. neg-mul-1N/A

          \[\leadsto 0 \cdot \left(\mathsf{neg}\left(x\right)\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        16. *-lft-identityN/A

          \[\leadsto 0 \cdot \left(1 \cdot \left(\mathsf{neg}\left(x\right)\right)\right) + \left(1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        17. mul0-lftN/A

          \[\leadsto 0 + \left(\color{blue}{1} + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right) \]
        18. +-lft-identityN/A

          \[\leadsto 1 + \color{blue}{\left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)} \]
        19. +-lowering-+.f64N/A

          \[\leadsto \mathsf{+.f64}\left(1, \color{blue}{\left(\left(\mathsf{neg}\left(y\right)\right) \cdot \left(1 - x\right)\right)}\right) \]
        20. *-commutativeN/A

          \[\leadsto \mathsf{+.f64}\left(1, \left(\left(1 - x\right) \cdot \color{blue}{\left(\mathsf{neg}\left(y\right)\right)}\right)\right) \]
        21. neg-mul-1N/A

          \[\leadsto \mathsf{+.f64}\left(1, \left(\left(1 - x\right) \cdot \left(-1 \cdot \color{blue}{y}\right)\right)\right) \]
        22. associate-*r*N/A

          \[\leadsto \mathsf{+.f64}\left(1, \left(\left(\left(1 - x\right) \cdot -1\right) \cdot \color{blue}{y}\right)\right) \]
        23. *-commutativeN/A

          \[\leadsto \mathsf{+.f64}\left(1, \left(y \cdot \color{blue}{\left(\left(1 - x\right) \cdot -1\right)}\right)\right) \]
        24. *-lowering-*.f64N/A

          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \color{blue}{\left(\left(1 - x\right) \cdot -1\right)}\right)\right) \]
      3. Simplified100.0%

        \[\leadsto \color{blue}{1 + y \cdot \left(x + -1\right)} \]
      4. Add Preprocessing
      5. Taylor expanded in y around 0

        \[\leadsto \color{blue}{1} \]
      6. Step-by-step derivation
        1. Simplified40.9%

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

        Developer Target 1: 100.0% accurate, 1.3× speedup?

        \[\begin{array}{l} \\ y \cdot x - \left(y - 1\right) \end{array} \]
        (FPCore (x y) :precision binary64 (- (* y x) (- y 1.0)))
        double code(double x, double y) {
        	return (y * x) - (y - 1.0);
        }
        
        real(8) function code(x, y)
            real(8), intent (in) :: x
            real(8), intent (in) :: y
            code = (y * x) - (y - 1.0d0)
        end function
        
        public static double code(double x, double y) {
        	return (y * x) - (y - 1.0);
        }
        
        def code(x, y):
        	return (y * x) - (y - 1.0)
        
        function code(x, y)
        	return Float64(Float64(y * x) - Float64(y - 1.0))
        end
        
        function tmp = code(x, y)
        	tmp = (y * x) - (y - 1.0);
        end
        
        code[x_, y_] := N[(N[(y * x), $MachinePrecision] - N[(y - 1.0), $MachinePrecision]), $MachinePrecision]
        
        \begin{array}{l}
        
        \\
        y \cdot x - \left(y - 1\right)
        \end{array}
        

        Reproduce

        ?
        herbie shell --seed 2024161 
        (FPCore (x y)
          :name "Graphics.Rendering.Chart.Plot.Vectors:renderPlotVectors from Chart-1.5.3"
          :precision binary64
        
          :alt
          (! :herbie-platform default (- (* y x) (- y 1)))
        
          (+ x (* (- 1.0 x) (- 1.0 y))))