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

Percentage Accurate: 78.1% → 100.0%
Time: 5.1s
Alternatives: 8
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 8 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: 78.1% 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 76.1%

    \[x + \left(1 - x\right) \cdot \left(1 - y\right) \]
  2. Step-by-step derivation
    1. +-commutative76.1%

      \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) + x} \]
    2. remove-double-neg76.1%

      \[\leadsto \left(1 - x\right) \cdot \left(1 - y\right) + \color{blue}{\left(-\left(-x\right)\right)} \]
    3. unsub-neg76.1%

      \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) - \left(-x\right)} \]
    4. sub-neg76.1%

      \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(1 + \left(-y\right)\right)} - \left(-x\right) \]
    5. +-commutative76.1%

      \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(\left(-y\right) + 1\right)} - \left(-x\right) \]
    6. distribute-rgt-in76.1%

      \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1 \cdot \left(1 - x\right)\right)} - \left(-x\right) \]
    7. *-lft-identity76.1%

      \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + \color{blue}{\left(1 - x\right)}\right) - \left(-x\right) \]
    8. associate-+r-76.1%

      \[\leadsto \color{blue}{\left(\left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - x\right)} - \left(-x\right) \]
    9. associate--l-100.0%

      \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \left(x + \left(-x\right)\right)} \]
    10. sub-neg100.0%

      \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \color{blue}{\left(x - x\right)} \]
    11. +-inverses100.0%

      \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \color{blue}{0} \]
    12. --rgt-identity100.0%

      \[\leadsto \color{blue}{\left(-y\right) \cdot \left(1 - x\right) + 1} \]
    13. +-commutative100.0%

      \[\leadsto \color{blue}{1 + \left(-y\right) \cdot \left(1 - x\right)} \]
    14. distribute-lft-neg-out100.0%

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

      \[\leadsto 1 + \color{blue}{y \cdot \left(-\left(1 - x\right)\right)} \]
    16. neg-sub0100.0%

      \[\leadsto 1 + y \cdot \color{blue}{\left(0 - \left(1 - x\right)\right)} \]
    17. associate--r-100.0%

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

      \[\leadsto 1 + y \cdot \left(\color{blue}{-1} + x\right) \]
    19. +-commutative100.0%

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

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

Alternative 2: 61.9% accurate, 0.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -9.2 \cdot 10^{+23}:\\ \;\;\;\;-y\\ \mathbf{elif}\;y \leq -1.65 \cdot 10^{-47}:\\ \;\;\;\;y \cdot x\\ \mathbf{elif}\;y \leq 27000:\\ \;\;\;\;1\\ \mathbf{elif}\;y \leq 9.5 \cdot 10^{+108}:\\ \;\;\;\;-y\\ \mathbf{else}:\\ \;\;\;\;y \cdot x\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (<= y -9.2e+23)
   (- y)
   (if (<= y -1.65e-47)
     (* y x)
     (if (<= y 27000.0) 1.0 (if (<= y 9.5e+108) (- y) (* y x))))))
double code(double x, double y) {
	double tmp;
	if (y <= -9.2e+23) {
		tmp = -y;
	} else if (y <= -1.65e-47) {
		tmp = y * x;
	} else if (y <= 27000.0) {
		tmp = 1.0;
	} else if (y <= 9.5e+108) {
		tmp = -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 (y <= (-9.2d+23)) then
        tmp = -y
    else if (y <= (-1.65d-47)) then
        tmp = y * x
    else if (y <= 27000.0d0) then
        tmp = 1.0d0
    else if (y <= 9.5d+108) then
        tmp = -y
    else
        tmp = y * x
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if (y <= -9.2e+23) {
		tmp = -y;
	} else if (y <= -1.65e-47) {
		tmp = y * x;
	} else if (y <= 27000.0) {
		tmp = 1.0;
	} else if (y <= 9.5e+108) {
		tmp = -y;
	} else {
		tmp = y * x;
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if y <= -9.2e+23:
		tmp = -y
	elif y <= -1.65e-47:
		tmp = y * x
	elif y <= 27000.0:
		tmp = 1.0
	elif y <= 9.5e+108:
		tmp = -y
	else:
		tmp = y * x
	return tmp
function code(x, y)
	tmp = 0.0
	if (y <= -9.2e+23)
		tmp = Float64(-y);
	elseif (y <= -1.65e-47)
		tmp = Float64(y * x);
	elseif (y <= 27000.0)
		tmp = 1.0;
	elseif (y <= 9.5e+108)
		tmp = Float64(-y);
	else
		tmp = Float64(y * x);
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if (y <= -9.2e+23)
		tmp = -y;
	elseif (y <= -1.65e-47)
		tmp = y * x;
	elseif (y <= 27000.0)
		tmp = 1.0;
	elseif (y <= 9.5e+108)
		tmp = -y;
	else
		tmp = y * x;
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[LessEqual[y, -9.2e+23], (-y), If[LessEqual[y, -1.65e-47], N[(y * x), $MachinePrecision], If[LessEqual[y, 27000.0], 1.0, If[LessEqual[y, 9.5e+108], (-y), N[(y * x), $MachinePrecision]]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -9.2 \cdot 10^{+23}:\\
\;\;\;\;-y\\

\mathbf{elif}\;y \leq -1.65 \cdot 10^{-47}:\\
\;\;\;\;y \cdot x\\

\mathbf{elif}\;y \leq 27000:\\
\;\;\;\;1\\

\mathbf{elif}\;y \leq 9.5 \cdot 10^{+108}:\\
\;\;\;\;-y\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -9.2000000000000002e23 or 27000 < y < 9.50000000000000097e108

    1. Initial program 99.9%

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

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) + x} \]
      2. remove-double-neg99.9%

        \[\leadsto \left(1 - x\right) \cdot \left(1 - y\right) + \color{blue}{\left(-\left(-x\right)\right)} \]
      3. unsub-neg99.9%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) - \left(-x\right)} \]
      4. sub-neg99.9%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(1 + \left(-y\right)\right)} - \left(-x\right) \]
      5. +-commutative99.9%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(\left(-y\right) + 1\right)} - \left(-x\right) \]
      6. distribute-rgt-in100.0%

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1 \cdot \left(1 - x\right)\right)} - \left(-x\right) \]
      7. *-lft-identity100.0%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + \color{blue}{\left(1 - x\right)}\right) - \left(-x\right) \]
      8. associate-+r-100.0%

        \[\leadsto \color{blue}{\left(\left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - x\right)} - \left(-x\right) \]
      9. associate--l-100.0%

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \left(x + \left(-x\right)\right)} \]
      10. sub-neg100.0%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \color{blue}{\left(x - x\right)} \]
      11. +-inverses100.0%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \color{blue}{0} \]
      12. --rgt-identity100.0%

        \[\leadsto \color{blue}{\left(-y\right) \cdot \left(1 - x\right) + 1} \]
      13. +-commutative100.0%

        \[\leadsto \color{blue}{1 + \left(-y\right) \cdot \left(1 - x\right)} \]
      14. distribute-lft-neg-out100.0%

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

        \[\leadsto 1 + \color{blue}{y \cdot \left(-\left(1 - x\right)\right)} \]
      16. neg-sub0100.0%

        \[\leadsto 1 + y \cdot \color{blue}{\left(0 - \left(1 - x\right)\right)} \]
      17. associate--r-100.0%

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

        \[\leadsto 1 + y \cdot \left(\color{blue}{-1} + x\right) \]
      19. +-commutative100.0%

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

      \[\leadsto \color{blue}{1 + y \cdot \left(x + -1\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 100.0%

      \[\leadsto \color{blue}{y \cdot \left(\left(x + \frac{1}{y}\right) - 1\right)} \]
    6. Taylor expanded in y around inf 99.0%

      \[\leadsto y \cdot \color{blue}{\left(x - 1\right)} \]
    7. Taylor expanded in x around 0 66.0%

      \[\leadsto \color{blue}{-1 \cdot y} \]
    8. Step-by-step derivation
      1. neg-mul-166.0%

        \[\leadsto \color{blue}{-y} \]
    9. Simplified66.0%

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

    if -9.2000000000000002e23 < y < -1.65000000000000002e-47 or 9.50000000000000097e108 < y

    1. Initial program 86.4%

      \[x + \left(1 - x\right) \cdot \left(1 - y\right) \]
    2. Step-by-step derivation
      1. +-commutative86.4%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) + x} \]
      2. remove-double-neg86.4%

        \[\leadsto \left(1 - x\right) \cdot \left(1 - y\right) + \color{blue}{\left(-\left(-x\right)\right)} \]
      3. unsub-neg86.4%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) - \left(-x\right)} \]
      4. sub-neg86.4%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(1 + \left(-y\right)\right)} - \left(-x\right) \]
      5. +-commutative86.4%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(\left(-y\right) + 1\right)} - \left(-x\right) \]
      6. distribute-rgt-in86.4%

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1 \cdot \left(1 - x\right)\right)} - \left(-x\right) \]
      7. *-lft-identity86.4%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + \color{blue}{\left(1 - x\right)}\right) - \left(-x\right) \]
      8. associate-+r-86.4%

        \[\leadsto \color{blue}{\left(\left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - x\right)} - \left(-x\right) \]
      9. associate--l-100.0%

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \left(x + \left(-x\right)\right)} \]
      10. sub-neg100.0%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \color{blue}{\left(x - x\right)} \]
      11. +-inverses100.0%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \color{blue}{0} \]
      12. --rgt-identity100.0%

        \[\leadsto \color{blue}{\left(-y\right) \cdot \left(1 - x\right) + 1} \]
      13. +-commutative100.0%

        \[\leadsto \color{blue}{1 + \left(-y\right) \cdot \left(1 - x\right)} \]
      14. distribute-lft-neg-out100.0%

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

        \[\leadsto 1 + \color{blue}{y \cdot \left(-\left(1 - x\right)\right)} \]
      16. neg-sub0100.0%

        \[\leadsto 1 + y \cdot \color{blue}{\left(0 - \left(1 - x\right)\right)} \]
      17. associate--r-100.0%

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

        \[\leadsto 1 + y \cdot \left(\color{blue}{-1} + x\right) \]
      19. +-commutative100.0%

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

      \[\leadsto \color{blue}{1 + y \cdot \left(x + -1\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 99.9%

      \[\leadsto \color{blue}{y \cdot \left(\left(x + \frac{1}{y}\right) - 1\right)} \]
    6. Taylor expanded in x around inf 65.1%

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

    if -1.65000000000000002e-47 < y < 27000

    1. Initial program 56.8%

      \[x + \left(1 - x\right) \cdot \left(1 - y\right) \]
    2. Step-by-step derivation
      1. +-commutative56.8%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) + x} \]
      2. remove-double-neg56.8%

        \[\leadsto \left(1 - x\right) \cdot \left(1 - y\right) + \color{blue}{\left(-\left(-x\right)\right)} \]
      3. unsub-neg56.8%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) - \left(-x\right)} \]
      4. sub-neg56.8%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(1 + \left(-y\right)\right)} - \left(-x\right) \]
      5. +-commutative56.8%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(\left(-y\right) + 1\right)} - \left(-x\right) \]
      6. distribute-rgt-in56.8%

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1 \cdot \left(1 - x\right)\right)} - \left(-x\right) \]
      7. *-lft-identity56.8%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + \color{blue}{\left(1 - x\right)}\right) - \left(-x\right) \]
      8. associate-+r-56.8%

        \[\leadsto \color{blue}{\left(\left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - x\right)} - \left(-x\right) \]
      9. associate--l-100.0%

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \left(x + \left(-x\right)\right)} \]
      10. sub-neg100.0%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \color{blue}{\left(x - x\right)} \]
      11. +-inverses100.0%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \color{blue}{0} \]
      12. --rgt-identity100.0%

        \[\leadsto \color{blue}{\left(-y\right) \cdot \left(1 - x\right) + 1} \]
      13. +-commutative100.0%

        \[\leadsto \color{blue}{1 + \left(-y\right) \cdot \left(1 - x\right)} \]
      14. distribute-lft-neg-out100.0%

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

        \[\leadsto 1 + \color{blue}{y \cdot \left(-\left(1 - x\right)\right)} \]
      16. neg-sub0100.0%

        \[\leadsto 1 + y \cdot \color{blue}{\left(0 - \left(1 - x\right)\right)} \]
      17. associate--r-100.0%

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

        \[\leadsto 1 + y \cdot \left(\color{blue}{-1} + x\right) \]
      19. +-commutative100.0%

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

      \[\leadsto \color{blue}{1 + y \cdot \left(x + -1\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around 0 77.5%

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

Alternative 3: 97.7% accurate, 0.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -8.2 \cdot 10^{+36}:\\ \;\;\;\;1 + y \cdot x\\ \mathbf{elif}\;x \leq 1:\\ \;\;\;\;1 - y\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(x + \frac{1}{y}\right)\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (<= x -8.2e+36)
   (+ 1.0 (* y x))
   (if (<= x 1.0) (- 1.0 y) (* y (+ x (/ 1.0 y))))))
double code(double x, double y) {
	double tmp;
	if (x <= -8.2e+36) {
		tmp = 1.0 + (y * x);
	} else if (x <= 1.0) {
		tmp = 1.0 - y;
	} else {
		tmp = y * (x + (1.0 / y));
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if (x <= (-8.2d+36)) then
        tmp = 1.0d0 + (y * x)
    else if (x <= 1.0d0) then
        tmp = 1.0d0 - y
    else
        tmp = y * (x + (1.0d0 / y))
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if (x <= -8.2e+36) {
		tmp = 1.0 + (y * x);
	} else if (x <= 1.0) {
		tmp = 1.0 - y;
	} else {
		tmp = y * (x + (1.0 / y));
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if x <= -8.2e+36:
		tmp = 1.0 + (y * x)
	elif x <= 1.0:
		tmp = 1.0 - y
	else:
		tmp = y * (x + (1.0 / y))
	return tmp
function code(x, y)
	tmp = 0.0
	if (x <= -8.2e+36)
		tmp = Float64(1.0 + Float64(y * x));
	elseif (x <= 1.0)
		tmp = Float64(1.0 - y);
	else
		tmp = Float64(y * Float64(x + Float64(1.0 / y)));
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if (x <= -8.2e+36)
		tmp = 1.0 + (y * x);
	elseif (x <= 1.0)
		tmp = 1.0 - y;
	else
		tmp = y * (x + (1.0 / y));
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[LessEqual[x, -8.2e+36], N[(1.0 + N[(y * x), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 1.0], N[(1.0 - y), $MachinePrecision], N[(y * N[(x + N[(1.0 / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq -8.2 \cdot 10^{+36}:\\
\;\;\;\;1 + y \cdot x\\

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

\mathbf{else}:\\
\;\;\;\;y \cdot \left(x + \frac{1}{y}\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if x < -8.20000000000000026e36

    1. Initial program 45.4%

      \[x + \left(1 - x\right) \cdot \left(1 - y\right) \]
    2. Step-by-step derivation
      1. +-commutative45.4%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) + x} \]
      2. remove-double-neg45.4%

        \[\leadsto \left(1 - x\right) \cdot \left(1 - y\right) + \color{blue}{\left(-\left(-x\right)\right)} \]
      3. unsub-neg45.4%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) - \left(-x\right)} \]
      4. sub-neg45.4%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(1 + \left(-y\right)\right)} - \left(-x\right) \]
      5. +-commutative45.4%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(\left(-y\right) + 1\right)} - \left(-x\right) \]
      6. distribute-rgt-in45.4%

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1 \cdot \left(1 - x\right)\right)} - \left(-x\right) \]
      7. *-lft-identity45.4%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + \color{blue}{\left(1 - x\right)}\right) - \left(-x\right) \]
      8. associate-+r-45.4%

        \[\leadsto \color{blue}{\left(\left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - x\right)} - \left(-x\right) \]
      9. associate--l-100.0%

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \left(x + \left(-x\right)\right)} \]
      10. sub-neg100.0%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \color{blue}{\left(x - x\right)} \]
      11. +-inverses100.0%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \color{blue}{0} \]
      12. --rgt-identity100.0%

        \[\leadsto \color{blue}{\left(-y\right) \cdot \left(1 - x\right) + 1} \]
      13. +-commutative100.0%

        \[\leadsto \color{blue}{1 + \left(-y\right) \cdot \left(1 - x\right)} \]
      14. distribute-lft-neg-out100.0%

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

        \[\leadsto 1 + \color{blue}{y \cdot \left(-\left(1 - x\right)\right)} \]
      16. neg-sub0100.0%

        \[\leadsto 1 + y \cdot \color{blue}{\left(0 - \left(1 - x\right)\right)} \]
      17. associate--r-100.0%

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

        \[\leadsto 1 + y \cdot \left(\color{blue}{-1} + x\right) \]
      19. +-commutative100.0%

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

      \[\leadsto \color{blue}{1 + y \cdot \left(x + -1\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 100.0%

      \[\leadsto 1 + \color{blue}{x \cdot y} \]
    6. Step-by-step derivation
      1. *-commutative100.0%

        \[\leadsto 1 + \color{blue}{y \cdot x} \]
    7. Simplified100.0%

      \[\leadsto 1 + \color{blue}{y \cdot x} \]

    if -8.20000000000000026e36 < x < 1

    1. Initial program 97.3%

      \[x + \left(1 - x\right) \cdot \left(1 - y\right) \]
    2. Step-by-step derivation
      1. +-commutative97.3%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) + x} \]
      2. remove-double-neg97.3%

        \[\leadsto \left(1 - x\right) \cdot \left(1 - y\right) + \color{blue}{\left(-\left(-x\right)\right)} \]
      3. unsub-neg97.3%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) - \left(-x\right)} \]
      4. sub-neg97.3%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(1 + \left(-y\right)\right)} - \left(-x\right) \]
      5. +-commutative97.3%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(\left(-y\right) + 1\right)} - \left(-x\right) \]
      6. distribute-rgt-in97.3%

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1 \cdot \left(1 - x\right)\right)} - \left(-x\right) \]
      7. *-lft-identity97.3%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + \color{blue}{\left(1 - x\right)}\right) - \left(-x\right) \]
      8. associate-+r-97.3%

        \[\leadsto \color{blue}{\left(\left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - x\right)} - \left(-x\right) \]
      9. associate--l-100.0%

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \left(x + \left(-x\right)\right)} \]
      10. sub-neg100.0%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \color{blue}{\left(x - x\right)} \]
      11. +-inverses100.0%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \color{blue}{0} \]
      12. --rgt-identity100.0%

        \[\leadsto \color{blue}{\left(-y\right) \cdot \left(1 - x\right) + 1} \]
      13. +-commutative100.0%

        \[\leadsto \color{blue}{1 + \left(-y\right) \cdot \left(1 - x\right)} \]
      14. distribute-lft-neg-out100.0%

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

        \[\leadsto 1 + \color{blue}{y \cdot \left(-\left(1 - x\right)\right)} \]
      16. neg-sub0100.0%

        \[\leadsto 1 + y \cdot \color{blue}{\left(0 - \left(1 - x\right)\right)} \]
      17. associate--r-100.0%

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

        \[\leadsto 1 + y \cdot \left(\color{blue}{-1} + x\right) \]
      19. +-commutative100.0%

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

      \[\leadsto \color{blue}{1 + y \cdot \left(x + -1\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in x around 0 99.3%

      \[\leadsto \color{blue}{1 + -1 \cdot y} \]
    6. Step-by-step derivation
      1. neg-mul-199.3%

        \[\leadsto 1 + \color{blue}{\left(-y\right)} \]
      2. unsub-neg99.3%

        \[\leadsto \color{blue}{1 - y} \]
    7. Simplified99.3%

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

    if 1 < x

    1. Initial program 51.3%

      \[x + \left(1 - x\right) \cdot \left(1 - y\right) \]
    2. Step-by-step derivation
      1. +-commutative51.3%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) + x} \]
      2. remove-double-neg51.3%

        \[\leadsto \left(1 - x\right) \cdot \left(1 - y\right) + \color{blue}{\left(-\left(-x\right)\right)} \]
      3. unsub-neg51.3%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) - \left(-x\right)} \]
      4. sub-neg51.3%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(1 + \left(-y\right)\right)} - \left(-x\right) \]
      5. +-commutative51.3%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(\left(-y\right) + 1\right)} - \left(-x\right) \]
      6. distribute-rgt-in51.4%

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1 \cdot \left(1 - x\right)\right)} - \left(-x\right) \]
      7. *-lft-identity51.4%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + \color{blue}{\left(1 - x\right)}\right) - \left(-x\right) \]
      8. associate-+r-51.4%

        \[\leadsto \color{blue}{\left(\left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - x\right)} - \left(-x\right) \]
      9. associate--l-100.0%

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \left(x + \left(-x\right)\right)} \]
      10. sub-neg100.0%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \color{blue}{\left(x - x\right)} \]
      11. +-inverses100.0%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \color{blue}{0} \]
      12. --rgt-identity100.0%

        \[\leadsto \color{blue}{\left(-y\right) \cdot \left(1 - x\right) + 1} \]
      13. +-commutative100.0%

        \[\leadsto \color{blue}{1 + \left(-y\right) \cdot \left(1 - x\right)} \]
      14. distribute-lft-neg-out100.0%

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

        \[\leadsto 1 + \color{blue}{y \cdot \left(-\left(1 - x\right)\right)} \]
      16. neg-sub0100.0%

        \[\leadsto 1 + y \cdot \color{blue}{\left(0 - \left(1 - x\right)\right)} \]
      17. associate--r-100.0%

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

        \[\leadsto 1 + y \cdot \left(\color{blue}{-1} + x\right) \]
      19. +-commutative100.0%

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

      \[\leadsto \color{blue}{1 + y \cdot \left(x + -1\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 99.3%

      \[\leadsto 1 + \color{blue}{x \cdot y} \]
    6. Step-by-step derivation
      1. *-commutative99.3%

        \[\leadsto 1 + \color{blue}{y \cdot x} \]
    7. Simplified99.3%

      \[\leadsto 1 + \color{blue}{y \cdot x} \]
    8. Taylor expanded in y around inf 99.3%

      \[\leadsto \color{blue}{y \cdot \left(x + \frac{1}{y}\right)} \]
  3. Recombined 3 regimes into one program.
  4. Add Preprocessing

Alternative 4: 97.7% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -8.2 \cdot 10^{+36} \lor \neg \left(x \leq 1\right):\\ \;\;\;\;1 + y \cdot x\\ \mathbf{else}:\\ \;\;\;\;1 - y\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (or (<= x -8.2e+36) (not (<= x 1.0))) (+ 1.0 (* y x)) (- 1.0 y)))
double code(double x, double y) {
	double tmp;
	if ((x <= -8.2e+36) || !(x <= 1.0)) {
		tmp = 1.0 + (y * x);
	} else {
		tmp = 1.0 - y;
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if ((x <= (-8.2d+36)) .or. (.not. (x <= 1.0d0))) then
        tmp = 1.0d0 + (y * x)
    else
        tmp = 1.0d0 - y
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if ((x <= -8.2e+36) || !(x <= 1.0)) {
		tmp = 1.0 + (y * x);
	} else {
		tmp = 1.0 - y;
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if (x <= -8.2e+36) or not (x <= 1.0):
		tmp = 1.0 + (y * x)
	else:
		tmp = 1.0 - y
	return tmp
function code(x, y)
	tmp = 0.0
	if ((x <= -8.2e+36) || !(x <= 1.0))
		tmp = Float64(1.0 + Float64(y * x));
	else
		tmp = Float64(1.0 - y);
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if ((x <= -8.2e+36) || ~((x <= 1.0)))
		tmp = 1.0 + (y * x);
	else
		tmp = 1.0 - y;
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[Or[LessEqual[x, -8.2e+36], N[Not[LessEqual[x, 1.0]], $MachinePrecision]], N[(1.0 + N[(y * x), $MachinePrecision]), $MachinePrecision], N[(1.0 - y), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq -8.2 \cdot 10^{+36} \lor \neg \left(x \leq 1\right):\\
\;\;\;\;1 + y \cdot x\\

\mathbf{else}:\\
\;\;\;\;1 - y\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < -8.20000000000000026e36 or 1 < x

    1. Initial program 48.3%

      \[x + \left(1 - x\right) \cdot \left(1 - y\right) \]
    2. Step-by-step derivation
      1. +-commutative48.3%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) + x} \]
      2. remove-double-neg48.3%

        \[\leadsto \left(1 - x\right) \cdot \left(1 - y\right) + \color{blue}{\left(-\left(-x\right)\right)} \]
      3. unsub-neg48.3%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) - \left(-x\right)} \]
      4. sub-neg48.3%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(1 + \left(-y\right)\right)} - \left(-x\right) \]
      5. +-commutative48.3%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(\left(-y\right) + 1\right)} - \left(-x\right) \]
      6. distribute-rgt-in48.3%

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1 \cdot \left(1 - x\right)\right)} - \left(-x\right) \]
      7. *-lft-identity48.3%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + \color{blue}{\left(1 - x\right)}\right) - \left(-x\right) \]
      8. associate-+r-48.3%

        \[\leadsto \color{blue}{\left(\left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - x\right)} - \left(-x\right) \]
      9. associate--l-100.0%

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \left(x + \left(-x\right)\right)} \]
      10. sub-neg100.0%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \color{blue}{\left(x - x\right)} \]
      11. +-inverses100.0%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \color{blue}{0} \]
      12. --rgt-identity100.0%

        \[\leadsto \color{blue}{\left(-y\right) \cdot \left(1 - x\right) + 1} \]
      13. +-commutative100.0%

        \[\leadsto \color{blue}{1 + \left(-y\right) \cdot \left(1 - x\right)} \]
      14. distribute-lft-neg-out100.0%

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

        \[\leadsto 1 + \color{blue}{y \cdot \left(-\left(1 - x\right)\right)} \]
      16. neg-sub0100.0%

        \[\leadsto 1 + y \cdot \color{blue}{\left(0 - \left(1 - x\right)\right)} \]
      17. associate--r-100.0%

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

        \[\leadsto 1 + y \cdot \left(\color{blue}{-1} + x\right) \]
      19. +-commutative100.0%

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

      \[\leadsto \color{blue}{1 + y \cdot \left(x + -1\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 99.6%

      \[\leadsto 1 + \color{blue}{x \cdot y} \]
    6. Step-by-step derivation
      1. *-commutative99.6%

        \[\leadsto 1 + \color{blue}{y \cdot x} \]
    7. Simplified99.6%

      \[\leadsto 1 + \color{blue}{y \cdot x} \]

    if -8.20000000000000026e36 < x < 1

    1. Initial program 97.3%

      \[x + \left(1 - x\right) \cdot \left(1 - y\right) \]
    2. Step-by-step derivation
      1. +-commutative97.3%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) + x} \]
      2. remove-double-neg97.3%

        \[\leadsto \left(1 - x\right) \cdot \left(1 - y\right) + \color{blue}{\left(-\left(-x\right)\right)} \]
      3. unsub-neg97.3%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) - \left(-x\right)} \]
      4. sub-neg97.3%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(1 + \left(-y\right)\right)} - \left(-x\right) \]
      5. +-commutative97.3%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(\left(-y\right) + 1\right)} - \left(-x\right) \]
      6. distribute-rgt-in97.3%

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1 \cdot \left(1 - x\right)\right)} - \left(-x\right) \]
      7. *-lft-identity97.3%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + \color{blue}{\left(1 - x\right)}\right) - \left(-x\right) \]
      8. associate-+r-97.3%

        \[\leadsto \color{blue}{\left(\left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - x\right)} - \left(-x\right) \]
      9. associate--l-100.0%

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \left(x + \left(-x\right)\right)} \]
      10. sub-neg100.0%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \color{blue}{\left(x - x\right)} \]
      11. +-inverses100.0%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \color{blue}{0} \]
      12. --rgt-identity100.0%

        \[\leadsto \color{blue}{\left(-y\right) \cdot \left(1 - x\right) + 1} \]
      13. +-commutative100.0%

        \[\leadsto \color{blue}{1 + \left(-y\right) \cdot \left(1 - x\right)} \]
      14. distribute-lft-neg-out100.0%

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

        \[\leadsto 1 + \color{blue}{y \cdot \left(-\left(1 - x\right)\right)} \]
      16. neg-sub0100.0%

        \[\leadsto 1 + y \cdot \color{blue}{\left(0 - \left(1 - x\right)\right)} \]
      17. associate--r-100.0%

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

        \[\leadsto 1 + y \cdot \left(\color{blue}{-1} + x\right) \]
      19. +-commutative100.0%

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

      \[\leadsto \color{blue}{1 + y \cdot \left(x + -1\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in x around 0 99.3%

      \[\leadsto \color{blue}{1 + -1 \cdot y} \]
    6. Step-by-step derivation
      1. neg-mul-199.3%

        \[\leadsto 1 + \color{blue}{\left(-y\right)} \]
      2. unsub-neg99.3%

        \[\leadsto \color{blue}{1 - y} \]
    7. Simplified99.3%

      \[\leadsto \color{blue}{1 - y} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification99.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -8.2 \cdot 10^{+36} \lor \neg \left(x \leq 1\right):\\ \;\;\;\;1 + y \cdot x\\ \mathbf{else}:\\ \;\;\;\;1 - y\\ \end{array} \]
  5. Add Preprocessing

Alternative 5: 87.2% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -8.8 \cdot 10^{+36}:\\ \;\;\;\;y \cdot x\\ \mathbf{elif}\;x \leq 3.7 \cdot 10^{-9}:\\ \;\;\;\;1 - y\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(x + -1\right)\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (<= x -8.8e+36) (* y x) (if (<= x 3.7e-9) (- 1.0 y) (* y (+ x -1.0)))))
double code(double x, double y) {
	double tmp;
	if (x <= -8.8e+36) {
		tmp = y * x;
	} else if (x <= 3.7e-9) {
		tmp = 1.0 - y;
	} else {
		tmp = y * (x + -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 <= (-8.8d+36)) then
        tmp = y * x
    else if (x <= 3.7d-9) then
        tmp = 1.0d0 - y
    else
        tmp = y * (x + (-1.0d0))
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if (x <= -8.8e+36) {
		tmp = y * x;
	} else if (x <= 3.7e-9) {
		tmp = 1.0 - y;
	} else {
		tmp = y * (x + -1.0);
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if x <= -8.8e+36:
		tmp = y * x
	elif x <= 3.7e-9:
		tmp = 1.0 - y
	else:
		tmp = y * (x + -1.0)
	return tmp
function code(x, y)
	tmp = 0.0
	if (x <= -8.8e+36)
		tmp = Float64(y * x);
	elseif (x <= 3.7e-9)
		tmp = Float64(1.0 - y);
	else
		tmp = Float64(y * Float64(x + -1.0));
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if (x <= -8.8e+36)
		tmp = y * x;
	elseif (x <= 3.7e-9)
		tmp = 1.0 - y;
	else
		tmp = y * (x + -1.0);
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[LessEqual[x, -8.8e+36], N[(y * x), $MachinePrecision], If[LessEqual[x, 3.7e-9], N[(1.0 - y), $MachinePrecision], N[(y * N[(x + -1.0), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq -8.8 \cdot 10^{+36}:\\
\;\;\;\;y \cdot x\\

\mathbf{elif}\;x \leq 3.7 \cdot 10^{-9}:\\
\;\;\;\;1 - y\\

\mathbf{else}:\\
\;\;\;\;y \cdot \left(x + -1\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if x < -8.80000000000000002e36

    1. Initial program 45.4%

      \[x + \left(1 - x\right) \cdot \left(1 - y\right) \]
    2. Step-by-step derivation
      1. +-commutative45.4%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) + x} \]
      2. remove-double-neg45.4%

        \[\leadsto \left(1 - x\right) \cdot \left(1 - y\right) + \color{blue}{\left(-\left(-x\right)\right)} \]
      3. unsub-neg45.4%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) - \left(-x\right)} \]
      4. sub-neg45.4%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(1 + \left(-y\right)\right)} - \left(-x\right) \]
      5. +-commutative45.4%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(\left(-y\right) + 1\right)} - \left(-x\right) \]
      6. distribute-rgt-in45.4%

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1 \cdot \left(1 - x\right)\right)} - \left(-x\right) \]
      7. *-lft-identity45.4%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + \color{blue}{\left(1 - x\right)}\right) - \left(-x\right) \]
      8. associate-+r-45.4%

        \[\leadsto \color{blue}{\left(\left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - x\right)} - \left(-x\right) \]
      9. associate--l-100.0%

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \left(x + \left(-x\right)\right)} \]
      10. sub-neg100.0%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \color{blue}{\left(x - x\right)} \]
      11. +-inverses100.0%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \color{blue}{0} \]
      12. --rgt-identity100.0%

        \[\leadsto \color{blue}{\left(-y\right) \cdot \left(1 - x\right) + 1} \]
      13. +-commutative100.0%

        \[\leadsto \color{blue}{1 + \left(-y\right) \cdot \left(1 - x\right)} \]
      14. distribute-lft-neg-out100.0%

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

        \[\leadsto 1 + \color{blue}{y \cdot \left(-\left(1 - x\right)\right)} \]
      16. neg-sub0100.0%

        \[\leadsto 1 + y \cdot \color{blue}{\left(0 - \left(1 - x\right)\right)} \]
      17. associate--r-100.0%

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

        \[\leadsto 1 + y \cdot \left(\color{blue}{-1} + x\right) \]
      19. +-commutative100.0%

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

      \[\leadsto \color{blue}{1 + y \cdot \left(x + -1\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 99.9%

      \[\leadsto \color{blue}{y \cdot \left(\left(x + \frac{1}{y}\right) - 1\right)} \]
    6. Taylor expanded in x around inf 74.1%

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

    if -8.80000000000000002e36 < x < 3.7e-9

    1. Initial program 97.3%

      \[x + \left(1 - x\right) \cdot \left(1 - y\right) \]
    2. Step-by-step derivation
      1. +-commutative97.3%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) + x} \]
      2. remove-double-neg97.3%

        \[\leadsto \left(1 - x\right) \cdot \left(1 - y\right) + \color{blue}{\left(-\left(-x\right)\right)} \]
      3. unsub-neg97.3%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) - \left(-x\right)} \]
      4. sub-neg97.3%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(1 + \left(-y\right)\right)} - \left(-x\right) \]
      5. +-commutative97.3%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(\left(-y\right) + 1\right)} - \left(-x\right) \]
      6. distribute-rgt-in97.3%

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1 \cdot \left(1 - x\right)\right)} - \left(-x\right) \]
      7. *-lft-identity97.3%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + \color{blue}{\left(1 - x\right)}\right) - \left(-x\right) \]
      8. associate-+r-97.3%

        \[\leadsto \color{blue}{\left(\left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - x\right)} - \left(-x\right) \]
      9. associate--l-100.0%

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \left(x + \left(-x\right)\right)} \]
      10. sub-neg100.0%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \color{blue}{\left(x - x\right)} \]
      11. +-inverses100.0%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \color{blue}{0} \]
      12. --rgt-identity100.0%

        \[\leadsto \color{blue}{\left(-y\right) \cdot \left(1 - x\right) + 1} \]
      13. +-commutative100.0%

        \[\leadsto \color{blue}{1 + \left(-y\right) \cdot \left(1 - x\right)} \]
      14. distribute-lft-neg-out100.0%

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

        \[\leadsto 1 + \color{blue}{y \cdot \left(-\left(1 - x\right)\right)} \]
      16. neg-sub0100.0%

        \[\leadsto 1 + y \cdot \color{blue}{\left(0 - \left(1 - x\right)\right)} \]
      17. associate--r-100.0%

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

        \[\leadsto 1 + y \cdot \left(\color{blue}{-1} + x\right) \]
      19. +-commutative100.0%

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

      \[\leadsto \color{blue}{1 + y \cdot \left(x + -1\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in x around 0 100.0%

      \[\leadsto \color{blue}{1 + -1 \cdot y} \]
    6. Step-by-step derivation
      1. neg-mul-1100.0%

        \[\leadsto 1 + \color{blue}{\left(-y\right)} \]
      2. unsub-neg100.0%

        \[\leadsto \color{blue}{1 - y} \]
    7. Simplified100.0%

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

    if 3.7e-9 < x

    1. Initial program 53.1%

      \[x + \left(1 - x\right) \cdot \left(1 - y\right) \]
    2. Step-by-step derivation
      1. +-commutative53.1%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) + x} \]
      2. remove-double-neg53.1%

        \[\leadsto \left(1 - x\right) \cdot \left(1 - y\right) + \color{blue}{\left(-\left(-x\right)\right)} \]
      3. unsub-neg53.1%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) - \left(-x\right)} \]
      4. sub-neg53.1%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(1 + \left(-y\right)\right)} - \left(-x\right) \]
      5. +-commutative53.1%

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

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1 \cdot \left(1 - x\right)\right)} - \left(-x\right) \]
      7. *-lft-identity53.1%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + \color{blue}{\left(1 - x\right)}\right) - \left(-x\right) \]
      8. associate-+r-53.1%

        \[\leadsto \color{blue}{\left(\left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - x\right)} - \left(-x\right) \]
      9. associate--l-99.9%

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \left(x + \left(-x\right)\right)} \]
      10. sub-neg99.9%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \color{blue}{\left(x - x\right)} \]
      11. +-inverses99.9%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \color{blue}{0} \]
      12. --rgt-identity99.9%

        \[\leadsto \color{blue}{\left(-y\right) \cdot \left(1 - x\right) + 1} \]
      13. +-commutative99.9%

        \[\leadsto \color{blue}{1 + \left(-y\right) \cdot \left(1 - x\right)} \]
      14. distribute-lft-neg-out99.9%

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

        \[\leadsto 1 + \color{blue}{y \cdot \left(-\left(1 - x\right)\right)} \]
      16. neg-sub099.9%

        \[\leadsto 1 + y \cdot \color{blue}{\left(0 - \left(1 - x\right)\right)} \]
      17. associate--r-99.9%

        \[\leadsto 1 + y \cdot \color{blue}{\left(\left(0 - 1\right) + x\right)} \]
      18. metadata-eval99.9%

        \[\leadsto 1 + y \cdot \left(\color{blue}{-1} + x\right) \]
      19. +-commutative99.9%

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

      \[\leadsto \color{blue}{1 + y \cdot \left(x + -1\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 100.0%

      \[\leadsto \color{blue}{y \cdot \left(\left(x + \frac{1}{y}\right) - 1\right)} \]
    6. Taylor expanded in y around inf 81.3%

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

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -8.8 \cdot 10^{+36}:\\ \;\;\;\;y \cdot x\\ \mathbf{elif}\;x \leq 3.7 \cdot 10^{-9}:\\ \;\;\;\;1 - y\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(x + -1\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 6: 87.0% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -1.46 \cdot 10^{+37} \lor \neg \left(x \leq 1.95 \cdot 10^{+29}\right):\\ \;\;\;\;y \cdot x\\ \mathbf{else}:\\ \;\;\;\;1 - y\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (or (<= x -1.46e+37) (not (<= x 1.95e+29))) (* y x) (- 1.0 y)))
double code(double x, double y) {
	double tmp;
	if ((x <= -1.46e+37) || !(x <= 1.95e+29)) {
		tmp = y * x;
	} else {
		tmp = 1.0 - y;
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if ((x <= (-1.46d+37)) .or. (.not. (x <= 1.95d+29))) then
        tmp = y * x
    else
        tmp = 1.0d0 - y
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if ((x <= -1.46e+37) || !(x <= 1.95e+29)) {
		tmp = y * x;
	} else {
		tmp = 1.0 - y;
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if (x <= -1.46e+37) or not (x <= 1.95e+29):
		tmp = y * x
	else:
		tmp = 1.0 - y
	return tmp
function code(x, y)
	tmp = 0.0
	if ((x <= -1.46e+37) || !(x <= 1.95e+29))
		tmp = Float64(y * x);
	else
		tmp = Float64(1.0 - y);
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if ((x <= -1.46e+37) || ~((x <= 1.95e+29)))
		tmp = y * x;
	else
		tmp = 1.0 - y;
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[Or[LessEqual[x, -1.46e+37], N[Not[LessEqual[x, 1.95e+29]], $MachinePrecision]], N[(y * x), $MachinePrecision], N[(1.0 - y), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq -1.46 \cdot 10^{+37} \lor \neg \left(x \leq 1.95 \cdot 10^{+29}\right):\\
\;\;\;\;y \cdot x\\

\mathbf{else}:\\
\;\;\;\;1 - y\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < -1.4599999999999999e37 or 1.94999999999999984e29 < x

    1. Initial program 48.2%

      \[x + \left(1 - x\right) \cdot \left(1 - y\right) \]
    2. Step-by-step derivation
      1. +-commutative48.2%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) + x} \]
      2. remove-double-neg48.2%

        \[\leadsto \left(1 - x\right) \cdot \left(1 - y\right) + \color{blue}{\left(-\left(-x\right)\right)} \]
      3. unsub-neg48.2%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) - \left(-x\right)} \]
      4. sub-neg48.2%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(1 + \left(-y\right)\right)} - \left(-x\right) \]
      5. +-commutative48.2%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(\left(-y\right) + 1\right)} - \left(-x\right) \]
      6. distribute-rgt-in48.2%

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1 \cdot \left(1 - x\right)\right)} - \left(-x\right) \]
      7. *-lft-identity48.2%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + \color{blue}{\left(1 - x\right)}\right) - \left(-x\right) \]
      8. associate-+r-48.2%

        \[\leadsto \color{blue}{\left(\left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - x\right)} - \left(-x\right) \]
      9. associate--l-100.0%

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \left(x + \left(-x\right)\right)} \]
      10. sub-neg100.0%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \color{blue}{\left(x - x\right)} \]
      11. +-inverses100.0%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \color{blue}{0} \]
      12. --rgt-identity100.0%

        \[\leadsto \color{blue}{\left(-y\right) \cdot \left(1 - x\right) + 1} \]
      13. +-commutative100.0%

        \[\leadsto \color{blue}{1 + \left(-y\right) \cdot \left(1 - x\right)} \]
      14. distribute-lft-neg-out100.0%

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

        \[\leadsto 1 + \color{blue}{y \cdot \left(-\left(1 - x\right)\right)} \]
      16. neg-sub0100.0%

        \[\leadsto 1 + y \cdot \color{blue}{\left(0 - \left(1 - x\right)\right)} \]
      17. associate--r-100.0%

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

        \[\leadsto 1 + y \cdot \left(\color{blue}{-1} + x\right) \]
      19. +-commutative100.0%

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

      \[\leadsto \color{blue}{1 + y \cdot \left(x + -1\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 100.0%

      \[\leadsto \color{blue}{y \cdot \left(\left(x + \frac{1}{y}\right) - 1\right)} \]
    6. Taylor expanded in x around inf 78.3%

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

    if -1.4599999999999999e37 < x < 1.94999999999999984e29

    1. Initial program 96.1%

      \[x + \left(1 - x\right) \cdot \left(1 - y\right) \]
    2. Step-by-step derivation
      1. +-commutative96.1%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) + x} \]
      2. remove-double-neg96.1%

        \[\leadsto \left(1 - x\right) \cdot \left(1 - y\right) + \color{blue}{\left(-\left(-x\right)\right)} \]
      3. unsub-neg96.1%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) - \left(-x\right)} \]
      4. sub-neg96.1%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(1 + \left(-y\right)\right)} - \left(-x\right) \]
      5. +-commutative96.1%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(\left(-y\right) + 1\right)} - \left(-x\right) \]
      6. distribute-rgt-in96.1%

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1 \cdot \left(1 - x\right)\right)} - \left(-x\right) \]
      7. *-lft-identity96.1%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + \color{blue}{\left(1 - x\right)}\right) - \left(-x\right) \]
      8. associate-+r-96.1%

        \[\leadsto \color{blue}{\left(\left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - x\right)} - \left(-x\right) \]
      9. associate--l-100.0%

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \left(x + \left(-x\right)\right)} \]
      10. sub-neg100.0%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \color{blue}{\left(x - x\right)} \]
      11. +-inverses100.0%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \color{blue}{0} \]
      12. --rgt-identity100.0%

        \[\leadsto \color{blue}{\left(-y\right) \cdot \left(1 - x\right) + 1} \]
      13. +-commutative100.0%

        \[\leadsto \color{blue}{1 + \left(-y\right) \cdot \left(1 - x\right)} \]
      14. distribute-lft-neg-out100.0%

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

        \[\leadsto 1 + \color{blue}{y \cdot \left(-\left(1 - x\right)\right)} \]
      16. neg-sub0100.0%

        \[\leadsto 1 + y \cdot \color{blue}{\left(0 - \left(1 - x\right)\right)} \]
      17. associate--r-100.0%

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

        \[\leadsto 1 + y \cdot \left(\color{blue}{-1} + x\right) \]
      19. +-commutative100.0%

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

      \[\leadsto \color{blue}{1 + y \cdot \left(x + -1\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in x around 0 98.0%

      \[\leadsto \color{blue}{1 + -1 \cdot y} \]
    6. Step-by-step derivation
      1. neg-mul-198.0%

        \[\leadsto 1 + \color{blue}{\left(-y\right)} \]
      2. unsub-neg98.0%

        \[\leadsto \color{blue}{1 - y} \]
    7. Simplified98.0%

      \[\leadsto \color{blue}{1 - y} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification89.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -1.46 \cdot 10^{+37} \lor \neg \left(x \leq 1.95 \cdot 10^{+29}\right):\\ \;\;\;\;y \cdot x\\ \mathbf{else}:\\ \;\;\;\;1 - y\\ \end{array} \]
  5. Add Preprocessing

Alternative 7: 61.7% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -1 \lor \neg \left(y \leq 27000\right):\\ \;\;\;\;-y\\ \mathbf{else}:\\ \;\;\;\;1\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (or (<= y -1.0) (not (<= y 27000.0))) (- y) 1.0))
double code(double x, double y) {
	double tmp;
	if ((y <= -1.0) || !(y <= 27000.0)) {
		tmp = -y;
	} 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 ((y <= (-1.0d0)) .or. (.not. (y <= 27000.0d0))) then
        tmp = -y
    else
        tmp = 1.0d0
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if ((y <= -1.0) || !(y <= 27000.0)) {
		tmp = -y;
	} else {
		tmp = 1.0;
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if (y <= -1.0) or not (y <= 27000.0):
		tmp = -y
	else:
		tmp = 1.0
	return tmp
function code(x, y)
	tmp = 0.0
	if ((y <= -1.0) || !(y <= 27000.0))
		tmp = Float64(-y);
	else
		tmp = 1.0;
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if ((y <= -1.0) || ~((y <= 27000.0)))
		tmp = -y;
	else
		tmp = 1.0;
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[Or[LessEqual[y, -1.0], N[Not[LessEqual[y, 27000.0]], $MachinePrecision]], (-y), 1.0]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -1 \lor \neg \left(y \leq 27000\right):\\
\;\;\;\;-y\\

\mathbf{else}:\\
\;\;\;\;1\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -1 or 27000 < y

    1. Initial program 100.0%

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

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) + x} \]
      2. remove-double-neg100.0%

        \[\leadsto \left(1 - x\right) \cdot \left(1 - y\right) + \color{blue}{\left(-\left(-x\right)\right)} \]
      3. unsub-neg100.0%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) - \left(-x\right)} \]
      4. sub-neg100.0%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(1 + \left(-y\right)\right)} - \left(-x\right) \]
      5. +-commutative100.0%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(\left(-y\right) + 1\right)} - \left(-x\right) \]
      6. distribute-rgt-in100.0%

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1 \cdot \left(1 - x\right)\right)} - \left(-x\right) \]
      7. *-lft-identity100.0%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + \color{blue}{\left(1 - x\right)}\right) - \left(-x\right) \]
      8. associate-+r-100.0%

        \[\leadsto \color{blue}{\left(\left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - x\right)} - \left(-x\right) \]
      9. associate--l-100.0%

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \left(x + \left(-x\right)\right)} \]
      10. sub-neg100.0%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \color{blue}{\left(x - x\right)} \]
      11. +-inverses100.0%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \color{blue}{0} \]
      12. --rgt-identity100.0%

        \[\leadsto \color{blue}{\left(-y\right) \cdot \left(1 - x\right) + 1} \]
      13. +-commutative100.0%

        \[\leadsto \color{blue}{1 + \left(-y\right) \cdot \left(1 - x\right)} \]
      14. distribute-lft-neg-out100.0%

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

        \[\leadsto 1 + \color{blue}{y \cdot \left(-\left(1 - x\right)\right)} \]
      16. neg-sub0100.0%

        \[\leadsto 1 + y \cdot \color{blue}{\left(0 - \left(1 - x\right)\right)} \]
      17. associate--r-100.0%

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

        \[\leadsto 1 + y \cdot \left(\color{blue}{-1} + x\right) \]
      19. +-commutative100.0%

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

      \[\leadsto \color{blue}{1 + y \cdot \left(x + -1\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 100.0%

      \[\leadsto \color{blue}{y \cdot \left(\left(x + \frac{1}{y}\right) - 1\right)} \]
    6. Taylor expanded in y around inf 98.7%

      \[\leadsto y \cdot \color{blue}{\left(x - 1\right)} \]
    7. Taylor expanded in x around 0 55.9%

      \[\leadsto \color{blue}{-1 \cdot y} \]
    8. Step-by-step derivation
      1. neg-mul-155.9%

        \[\leadsto \color{blue}{-y} \]
    9. Simplified55.9%

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

    if -1 < y < 27000

    1. Initial program 55.6%

      \[x + \left(1 - x\right) \cdot \left(1 - y\right) \]
    2. Step-by-step derivation
      1. +-commutative55.6%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) + x} \]
      2. remove-double-neg55.6%

        \[\leadsto \left(1 - x\right) \cdot \left(1 - y\right) + \color{blue}{\left(-\left(-x\right)\right)} \]
      3. unsub-neg55.6%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) - \left(-x\right)} \]
      4. sub-neg55.6%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(1 + \left(-y\right)\right)} - \left(-x\right) \]
      5. +-commutative55.6%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(\left(-y\right) + 1\right)} - \left(-x\right) \]
      6. distribute-rgt-in55.6%

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1 \cdot \left(1 - x\right)\right)} - \left(-x\right) \]
      7. *-lft-identity55.6%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + \color{blue}{\left(1 - x\right)}\right) - \left(-x\right) \]
      8. associate-+r-55.6%

        \[\leadsto \color{blue}{\left(\left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - x\right)} - \left(-x\right) \]
      9. associate--l-100.0%

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \left(x + \left(-x\right)\right)} \]
      10. sub-neg100.0%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \color{blue}{\left(x - x\right)} \]
      11. +-inverses100.0%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \color{blue}{0} \]
      12. --rgt-identity100.0%

        \[\leadsto \color{blue}{\left(-y\right) \cdot \left(1 - x\right) + 1} \]
      13. +-commutative100.0%

        \[\leadsto \color{blue}{1 + \left(-y\right) \cdot \left(1 - x\right)} \]
      14. distribute-lft-neg-out100.0%

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

        \[\leadsto 1 + \color{blue}{y \cdot \left(-\left(1 - x\right)\right)} \]
      16. neg-sub0100.0%

        \[\leadsto 1 + y \cdot \color{blue}{\left(0 - \left(1 - x\right)\right)} \]
      17. associate--r-100.0%

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

        \[\leadsto 1 + y \cdot \left(\color{blue}{-1} + x\right) \]
      19. +-commutative100.0%

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

      \[\leadsto \color{blue}{1 + y \cdot \left(x + -1\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around 0 73.9%

      \[\leadsto \color{blue}{1} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification65.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1 \lor \neg \left(y \leq 27000\right):\\ \;\;\;\;-y\\ \mathbf{else}:\\ \;\;\;\;1\\ \end{array} \]
  5. Add Preprocessing

Alternative 8: 38.1% 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 76.1%

    \[x + \left(1 - x\right) \cdot \left(1 - y\right) \]
  2. Step-by-step derivation
    1. +-commutative76.1%

      \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) + x} \]
    2. remove-double-neg76.1%

      \[\leadsto \left(1 - x\right) \cdot \left(1 - y\right) + \color{blue}{\left(-\left(-x\right)\right)} \]
    3. unsub-neg76.1%

      \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) - \left(-x\right)} \]
    4. sub-neg76.1%

      \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(1 + \left(-y\right)\right)} - \left(-x\right) \]
    5. +-commutative76.1%

      \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(\left(-y\right) + 1\right)} - \left(-x\right) \]
    6. distribute-rgt-in76.1%

      \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1 \cdot \left(1 - x\right)\right)} - \left(-x\right) \]
    7. *-lft-identity76.1%

      \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + \color{blue}{\left(1 - x\right)}\right) - \left(-x\right) \]
    8. associate-+r-76.1%

      \[\leadsto \color{blue}{\left(\left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - x\right)} - \left(-x\right) \]
    9. associate--l-100.0%

      \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \left(x + \left(-x\right)\right)} \]
    10. sub-neg100.0%

      \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \color{blue}{\left(x - x\right)} \]
    11. +-inverses100.0%

      \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + 1\right) - \color{blue}{0} \]
    12. --rgt-identity100.0%

      \[\leadsto \color{blue}{\left(-y\right) \cdot \left(1 - x\right) + 1} \]
    13. +-commutative100.0%

      \[\leadsto \color{blue}{1 + \left(-y\right) \cdot \left(1 - x\right)} \]
    14. distribute-lft-neg-out100.0%

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

      \[\leadsto 1 + \color{blue}{y \cdot \left(-\left(1 - x\right)\right)} \]
    16. neg-sub0100.0%

      \[\leadsto 1 + y \cdot \color{blue}{\left(0 - \left(1 - x\right)\right)} \]
    17. associate--r-100.0%

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

      \[\leadsto 1 + y \cdot \left(\color{blue}{-1} + x\right) \]
    19. +-commutative100.0%

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

    \[\leadsto \color{blue}{1 + y \cdot \left(x + -1\right)} \]
  4. Add Preprocessing
  5. Taylor expanded in y around 0 41.2%

    \[\leadsto \color{blue}{1} \]
  6. 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 2024186 
(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))))