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

Percentage Accurate: 77.7% → 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: 77.7% 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?

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

\\
\left(1 + x \cdot y\right) - y
\end{array}
Derivation
  1. Initial program 80.7%

    \[x + \left(1 - x\right) \cdot \left(1 - y\right) \]
  2. Step-by-step derivation
    1. +-commutative80.7%

      \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) + x} \]
    2. remove-double-neg80.7%

      \[\leadsto \left(1 - x\right) \cdot \left(1 - y\right) + \color{blue}{\left(-\left(-x\right)\right)} \]
    3. unsub-neg80.7%

      \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) - \left(-x\right)} \]
    4. sub-neg80.7%

      \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(1 + \left(-y\right)\right)} - \left(-x\right) \]
    5. +-commutative80.7%

      \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(\left(-y\right) + 1\right)} - \left(-x\right) \]
    6. distribute-rgt-in80.7%

      \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1 \cdot \left(1 - x\right)\right)} - \left(-x\right) \]
    7. *-lft-identity80.7%

      \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + \color{blue}{\left(1 - x\right)}\right) - \left(-x\right) \]
    8. associate--l+88.9%

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

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

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

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

      \[\leadsto \left(-y\right) \cdot \left(1 - x\right) + \color{blue}{1} \]
    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. Step-by-step derivation
    1. distribute-lft-in100.0%

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

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

      \[\leadsto 1 + \left(y \cdot x + \color{blue}{\left(-y\right)}\right) \]
  6. Applied egg-rr100.0%

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

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

Alternative 2: 62.0% accurate, 0.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -5.2 \cdot 10^{+188}:\\ \;\;\;\;x \cdot y\\ \mathbf{elif}\;y \leq -7.2 \cdot 10^{+77}:\\ \;\;\;\;-y\\ \mathbf{elif}\;y \leq -1.2 \cdot 10^{-71}:\\ \;\;\;\;x \cdot y\\ \mathbf{elif}\;y \leq 1.06 \cdot 10^{-14}:\\ \;\;\;\;1\\ \mathbf{elif}\;y \leq 3.5 \cdot 10^{+87} \lor \neg \left(y \leq 3.2 \cdot 10^{+249}\right):\\ \;\;\;\;x \cdot y\\ \mathbf{else}:\\ \;\;\;\;-y\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (<= y -5.2e+188)
   (* x y)
   (if (<= y -7.2e+77)
     (- y)
     (if (<= y -1.2e-71)
       (* x y)
       (if (<= y 1.06e-14)
         1.0
         (if (or (<= y 3.5e+87) (not (<= y 3.2e+249))) (* x y) (- y)))))))
double code(double x, double y) {
	double tmp;
	if (y <= -5.2e+188) {
		tmp = x * y;
	} else if (y <= -7.2e+77) {
		tmp = -y;
	} else if (y <= -1.2e-71) {
		tmp = x * y;
	} else if (y <= 1.06e-14) {
		tmp = 1.0;
	} else if ((y <= 3.5e+87) || !(y <= 3.2e+249)) {
		tmp = x * y;
	} else {
		tmp = -y;
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if (y <= (-5.2d+188)) then
        tmp = x * y
    else if (y <= (-7.2d+77)) then
        tmp = -y
    else if (y <= (-1.2d-71)) then
        tmp = x * y
    else if (y <= 1.06d-14) then
        tmp = 1.0d0
    else if ((y <= 3.5d+87) .or. (.not. (y <= 3.2d+249))) then
        tmp = x * y
    else
        tmp = -y
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if (y <= -5.2e+188) {
		tmp = x * y;
	} else if (y <= -7.2e+77) {
		tmp = -y;
	} else if (y <= -1.2e-71) {
		tmp = x * y;
	} else if (y <= 1.06e-14) {
		tmp = 1.0;
	} else if ((y <= 3.5e+87) || !(y <= 3.2e+249)) {
		tmp = x * y;
	} else {
		tmp = -y;
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if y <= -5.2e+188:
		tmp = x * y
	elif y <= -7.2e+77:
		tmp = -y
	elif y <= -1.2e-71:
		tmp = x * y
	elif y <= 1.06e-14:
		tmp = 1.0
	elif (y <= 3.5e+87) or not (y <= 3.2e+249):
		tmp = x * y
	else:
		tmp = -y
	return tmp
function code(x, y)
	tmp = 0.0
	if (y <= -5.2e+188)
		tmp = Float64(x * y);
	elseif (y <= -7.2e+77)
		tmp = Float64(-y);
	elseif (y <= -1.2e-71)
		tmp = Float64(x * y);
	elseif (y <= 1.06e-14)
		tmp = 1.0;
	elseif ((y <= 3.5e+87) || !(y <= 3.2e+249))
		tmp = Float64(x * y);
	else
		tmp = Float64(-y);
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if (y <= -5.2e+188)
		tmp = x * y;
	elseif (y <= -7.2e+77)
		tmp = -y;
	elseif (y <= -1.2e-71)
		tmp = x * y;
	elseif (y <= 1.06e-14)
		tmp = 1.0;
	elseif ((y <= 3.5e+87) || ~((y <= 3.2e+249)))
		tmp = x * y;
	else
		tmp = -y;
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[LessEqual[y, -5.2e+188], N[(x * y), $MachinePrecision], If[LessEqual[y, -7.2e+77], (-y), If[LessEqual[y, -1.2e-71], N[(x * y), $MachinePrecision], If[LessEqual[y, 1.06e-14], 1.0, If[Or[LessEqual[y, 3.5e+87], N[Not[LessEqual[y, 3.2e+249]], $MachinePrecision]], N[(x * y), $MachinePrecision], (-y)]]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -5.2 \cdot 10^{+188}:\\
\;\;\;\;x \cdot y\\

\mathbf{elif}\;y \leq -7.2 \cdot 10^{+77}:\\
\;\;\;\;-y\\

\mathbf{elif}\;y \leq -1.2 \cdot 10^{-71}:\\
\;\;\;\;x \cdot y\\

\mathbf{elif}\;y \leq 1.06 \cdot 10^{-14}:\\
\;\;\;\;1\\

\mathbf{elif}\;y \leq 3.5 \cdot 10^{+87} \lor \neg \left(y \leq 3.2 \cdot 10^{+249}\right):\\
\;\;\;\;x \cdot y\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -5.19999999999999975e188 or -7.1999999999999996e77 < y < -1.2e-71 or 1.06e-14 < y < 3.49999999999999986e87 or 3.20000000000000014e249 < y

    1. Initial program 92.2%

      \[x + \left(1 - x\right) \cdot \left(1 - y\right) \]
    2. Step-by-step derivation
      1. +-commutative92.2%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) + x} \]
      2. remove-double-neg92.2%

        \[\leadsto \left(1 - x\right) \cdot \left(1 - y\right) + \color{blue}{\left(-\left(-x\right)\right)} \]
      3. unsub-neg92.2%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) - \left(-x\right)} \]
      4. sub-neg92.2%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(1 + \left(-y\right)\right)} - \left(-x\right) \]
      5. +-commutative92.2%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(\left(-y\right) + 1\right)} - \left(-x\right) \]
      6. distribute-rgt-in92.2%

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1 \cdot \left(1 - x\right)\right)} - \left(-x\right) \]
      7. *-lft-identity92.2%

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

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

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

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

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

        \[\leadsto \left(-y\right) \cdot \left(1 - x\right) + \color{blue}{1} \]
      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 60.4%

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

    if -5.19999999999999975e188 < y < -7.1999999999999996e77 or 3.49999999999999986e87 < y < 3.20000000000000014e249

    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--l+100.0%

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

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

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

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

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

      \[\leadsto y \cdot \color{blue}{\left(x - 1\right)} \]
    7. Taylor expanded in x around 0 67.8%

      \[\leadsto \color{blue}{-1 \cdot y} \]
    8. Step-by-step derivation
      1. neg-mul-167.8%

        \[\leadsto \color{blue}{-y} \]
    9. Simplified67.8%

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

    if -1.2e-71 < y < 1.06e-14

    1. Initial program 59.1%

      \[x + \left(1 - x\right) \cdot \left(1 - y\right) \]
    2. Step-by-step derivation
      1. +-commutative59.1%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) + x} \]
      2. remove-double-neg59.1%

        \[\leadsto \left(1 - x\right) \cdot \left(1 - y\right) + \color{blue}{\left(-\left(-x\right)\right)} \]
      3. unsub-neg59.1%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) - \left(-x\right)} \]
      4. sub-neg59.1%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(1 + \left(-y\right)\right)} - \left(-x\right) \]
      5. +-commutative59.1%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(\left(-y\right) + 1\right)} - \left(-x\right) \]
      6. distribute-rgt-in59.1%

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1 \cdot \left(1 - x\right)\right)} - \left(-x\right) \]
      7. *-lft-identity59.1%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + \color{blue}{\left(1 - x\right)}\right) - \left(-x\right) \]
      8. associate--l+72.1%

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

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

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

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

        \[\leadsto \left(-y\right) \cdot \left(1 - x\right) + \color{blue}{1} \]
      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 83.4%

      \[\leadsto \color{blue}{1} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification71.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -5.2 \cdot 10^{+188}:\\ \;\;\;\;x \cdot y\\ \mathbf{elif}\;y \leq -7.2 \cdot 10^{+77}:\\ \;\;\;\;-y\\ \mathbf{elif}\;y \leq -1.2 \cdot 10^{-71}:\\ \;\;\;\;x \cdot y\\ \mathbf{elif}\;y \leq 1.06 \cdot 10^{-14}:\\ \;\;\;\;1\\ \mathbf{elif}\;y \leq 3.5 \cdot 10^{+87} \lor \neg \left(y \leq 3.2 \cdot 10^{+249}\right):\\ \;\;\;\;x \cdot y\\ \mathbf{else}:\\ \;\;\;\;-y\\ \end{array} \]
  5. Add Preprocessing

Alternative 3: 98.9% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -2800000000 \lor \neg \left(x \leq 1\right):\\ \;\;\;\;1 + x \cdot y\\ \mathbf{else}:\\ \;\;\;\;1 - y\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (or (<= x -2800000000.0) (not (<= x 1.0))) (+ 1.0 (* x y)) (- 1.0 y)))
double code(double x, double y) {
	double tmp;
	if ((x <= -2800000000.0) || !(x <= 1.0)) {
		tmp = 1.0 + (x * y);
	} 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 <= (-2800000000.0d0)) .or. (.not. (x <= 1.0d0))) then
        tmp = 1.0d0 + (x * y)
    else
        tmp = 1.0d0 - y
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if ((x <= -2800000000.0) || !(x <= 1.0)) {
		tmp = 1.0 + (x * y);
	} else {
		tmp = 1.0 - y;
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if (x <= -2800000000.0) or not (x <= 1.0):
		tmp = 1.0 + (x * y)
	else:
		tmp = 1.0 - y
	return tmp
function code(x, y)
	tmp = 0.0
	if ((x <= -2800000000.0) || !(x <= 1.0))
		tmp = Float64(1.0 + Float64(x * y));
	else
		tmp = Float64(1.0 - y);
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if ((x <= -2800000000.0) || ~((x <= 1.0)))
		tmp = 1.0 + (x * y);
	else
		tmp = 1.0 - y;
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[Or[LessEqual[x, -2800000000.0], N[Not[LessEqual[x, 1.0]], $MachinePrecision]], N[(1.0 + N[(x * y), $MachinePrecision]), $MachinePrecision], N[(1.0 - y), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq -2800000000 \lor \neg \left(x \leq 1\right):\\
\;\;\;\;1 + x \cdot y\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < -2.8e9 or 1 < x

    1. Initial program 59.6%

      \[x + \left(1 - x\right) \cdot \left(1 - y\right) \]
    2. Step-by-step derivation
      1. +-commutative59.6%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) + x} \]
      2. remove-double-neg59.6%

        \[\leadsto \left(1 - x\right) \cdot \left(1 - y\right) + \color{blue}{\left(-\left(-x\right)\right)} \]
      3. unsub-neg59.6%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) - \left(-x\right)} \]
      4. sub-neg59.6%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(1 + \left(-y\right)\right)} - \left(-x\right) \]
      5. +-commutative59.6%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(\left(-y\right) + 1\right)} - \left(-x\right) \]
      6. distribute-rgt-in59.6%

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1 \cdot \left(1 - x\right)\right)} - \left(-x\right) \]
      7. *-lft-identity59.6%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + \color{blue}{\left(1 - x\right)}\right) - \left(-x\right) \]
      8. associate--l+76.7%

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

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

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

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

        \[\leadsto \left(-y\right) \cdot \left(1 - x\right) + \color{blue}{1} \]
      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 99.4%

      \[\leadsto 1 + \color{blue}{x \cdot y} \]
    6. Step-by-step derivation
      1. *-commutative99.4%

        \[\leadsto 1 + \color{blue}{y \cdot x} \]
    7. Simplified99.4%

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

    if -2.8e9 < x < 1

    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--l+100.0%

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

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

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

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

        \[\leadsto \left(-y\right) \cdot \left(1 - x\right) + \color{blue}{1} \]
      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 simplification99.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -2800000000 \lor \neg \left(x \leq 1\right):\\ \;\;\;\;1 + x \cdot y\\ \mathbf{else}:\\ \;\;\;\;1 - y\\ \end{array} \]
  5. Add Preprocessing

Alternative 4: 85.8% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -1.05 \cdot 10^{-71} \lor \neg \left(y \leq 0.0145\right):\\ \;\;\;\;y \cdot \left(x + -1\right)\\ \mathbf{else}:\\ \;\;\;\;1 - y\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (or (<= y -1.05e-71) (not (<= y 0.0145))) (* y (+ x -1.0)) (- 1.0 y)))
double code(double x, double y) {
	double tmp;
	if ((y <= -1.05e-71) || !(y <= 0.0145)) {
		tmp = y * (x + -1.0);
	} 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 ((y <= (-1.05d-71)) .or. (.not. (y <= 0.0145d0))) then
        tmp = y * (x + (-1.0d0))
    else
        tmp = 1.0d0 - y
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if ((y <= -1.05e-71) || !(y <= 0.0145)) {
		tmp = y * (x + -1.0);
	} else {
		tmp = 1.0 - y;
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if (y <= -1.05e-71) or not (y <= 0.0145):
		tmp = y * (x + -1.0)
	else:
		tmp = 1.0 - y
	return tmp
function code(x, y)
	tmp = 0.0
	if ((y <= -1.05e-71) || !(y <= 0.0145))
		tmp = Float64(y * Float64(x + -1.0));
	else
		tmp = Float64(1.0 - y);
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if ((y <= -1.05e-71) || ~((y <= 0.0145)))
		tmp = y * (x + -1.0);
	else
		tmp = 1.0 - y;
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[Or[LessEqual[y, -1.05e-71], N[Not[LessEqual[y, 0.0145]], $MachinePrecision]], N[(y * N[(x + -1.0), $MachinePrecision]), $MachinePrecision], N[(1.0 - y), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -1.05 \cdot 10^{-71} \lor \neg \left(y \leq 0.0145\right):\\
\;\;\;\;y \cdot \left(x + -1\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -1.0500000000000001e-71 or 0.0145000000000000007 < y

    1. Initial program 95.4%

      \[x + \left(1 - x\right) \cdot \left(1 - y\right) \]
    2. Step-by-step derivation
      1. +-commutative95.4%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) + x} \]
      2. remove-double-neg95.4%

        \[\leadsto \left(1 - x\right) \cdot \left(1 - y\right) + \color{blue}{\left(-\left(-x\right)\right)} \]
      3. unsub-neg95.4%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) - \left(-x\right)} \]
      4. sub-neg95.4%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(1 + \left(-y\right)\right)} - \left(-x\right) \]
      5. +-commutative95.4%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(\left(-y\right) + 1\right)} - \left(-x\right) \]
      6. distribute-rgt-in95.4%

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1 \cdot \left(1 - x\right)\right)} - \left(-x\right) \]
      7. *-lft-identity95.4%

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

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

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

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

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

        \[\leadsto \left(-y\right) \cdot \left(1 - x\right) + \color{blue}{1} \]
      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 96.2%

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

    if -1.0500000000000001e-71 < y < 0.0145000000000000007

    1. Initial program 59.6%

      \[x + \left(1 - x\right) \cdot \left(1 - y\right) \]
    2. Step-by-step derivation
      1. +-commutative59.6%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) + x} \]
      2. remove-double-neg59.6%

        \[\leadsto \left(1 - x\right) \cdot \left(1 - y\right) + \color{blue}{\left(-\left(-x\right)\right)} \]
      3. unsub-neg59.6%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) - \left(-x\right)} \]
      4. sub-neg59.6%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(1 + \left(-y\right)\right)} - \left(-x\right) \]
      5. +-commutative59.6%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(\left(-y\right) + 1\right)} - \left(-x\right) \]
      6. distribute-rgt-in59.6%

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1 \cdot \left(1 - x\right)\right)} - \left(-x\right) \]
      7. *-lft-identity59.6%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + \color{blue}{\left(1 - x\right)}\right) - \left(-x\right) \]
      8. associate--l+72.9%

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

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

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

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

        \[\leadsto \left(-y\right) \cdot \left(1 - x\right) + \color{blue}{1} \]
      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 83.0%

      \[\leadsto \color{blue}{1 + -1 \cdot y} \]
    6. Step-by-step derivation
      1. neg-mul-183.0%

        \[\leadsto 1 + \color{blue}{\left(-y\right)} \]
      2. unsub-neg83.0%

        \[\leadsto \color{blue}{1 - y} \]
    7. Simplified83.0%

      \[\leadsto \color{blue}{1 - y} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification90.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1.05 \cdot 10^{-71} \lor \neg \left(y \leq 0.0145\right):\\ \;\;\;\;y \cdot \left(x + -1\right)\\ \mathbf{else}:\\ \;\;\;\;1 - y\\ \end{array} \]
  5. Add Preprocessing

Alternative 5: 87.3% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -5.2 \cdot 10^{+18} \lor \neg \left(x \leq 16500000000\right):\\ \;\;\;\;x \cdot y\\ \mathbf{else}:\\ \;\;\;\;1 - y\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (or (<= x -5.2e+18) (not (<= x 16500000000.0))) (* x y) (- 1.0 y)))
double code(double x, double y) {
	double tmp;
	if ((x <= -5.2e+18) || !(x <= 16500000000.0)) {
		tmp = x * y;
	} 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 <= (-5.2d+18)) .or. (.not. (x <= 16500000000.0d0))) then
        tmp = x * y
    else
        tmp = 1.0d0 - y
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if ((x <= -5.2e+18) || !(x <= 16500000000.0)) {
		tmp = x * y;
	} else {
		tmp = 1.0 - y;
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if (x <= -5.2e+18) or not (x <= 16500000000.0):
		tmp = x * y
	else:
		tmp = 1.0 - y
	return tmp
function code(x, y)
	tmp = 0.0
	if ((x <= -5.2e+18) || !(x <= 16500000000.0))
		tmp = Float64(x * y);
	else
		tmp = Float64(1.0 - y);
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if ((x <= -5.2e+18) || ~((x <= 16500000000.0)))
		tmp = x * y;
	else
		tmp = 1.0 - y;
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[Or[LessEqual[x, -5.2e+18], N[Not[LessEqual[x, 16500000000.0]], $MachinePrecision]], N[(x * y), $MachinePrecision], N[(1.0 - y), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq -5.2 \cdot 10^{+18} \lor \neg \left(x \leq 16500000000\right):\\
\;\;\;\;x \cdot y\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < -5.2e18 or 1.65e10 < x

    1. Initial program 58.6%

      \[x + \left(1 - x\right) \cdot \left(1 - y\right) \]
    2. Step-by-step derivation
      1. +-commutative58.6%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) + x} \]
      2. remove-double-neg58.6%

        \[\leadsto \left(1 - x\right) \cdot \left(1 - y\right) + \color{blue}{\left(-\left(-x\right)\right)} \]
      3. unsub-neg58.6%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) - \left(-x\right)} \]
      4. sub-neg58.6%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(1 + \left(-y\right)\right)} - \left(-x\right) \]
      5. +-commutative58.6%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(\left(-y\right) + 1\right)} - \left(-x\right) \]
      6. distribute-rgt-in58.6%

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1 \cdot \left(1 - x\right)\right)} - \left(-x\right) \]
      7. *-lft-identity58.6%

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

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

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

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

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

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

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

    if -5.2e18 < x < 1.65e10

    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--l+100.0%

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

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

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

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

        \[\leadsto \left(-y\right) \cdot \left(1 - x\right) + \color{blue}{1} \]
      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 98.6%

      \[\leadsto \color{blue}{1 + -1 \cdot y} \]
    6. Step-by-step derivation
      1. neg-mul-198.6%

        \[\leadsto 1 + \color{blue}{\left(-y\right)} \]
      2. unsub-neg98.6%

        \[\leadsto \color{blue}{1 - y} \]
    7. Simplified98.6%

      \[\leadsto \color{blue}{1 - y} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification88.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -5.2 \cdot 10^{+18} \lor \neg \left(x \leq 16500000000\right):\\ \;\;\;\;x \cdot y\\ \mathbf{else}:\\ \;\;\;\;1 - y\\ \end{array} \]
  5. Add Preprocessing

Alternative 6: 61.3% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -1 \lor \neg \left(y \leq 0.0185\right):\\ \;\;\;\;-y\\ \mathbf{else}:\\ \;\;\;\;1\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (or (<= y -1.0) (not (<= y 0.0185))) (- y) 1.0))
double code(double x, double y) {
	double tmp;
	if ((y <= -1.0) || !(y <= 0.0185)) {
		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 <= 0.0185d0))) 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 <= 0.0185)) {
		tmp = -y;
	} else {
		tmp = 1.0;
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if (y <= -1.0) or not (y <= 0.0185):
		tmp = -y
	else:
		tmp = 1.0
	return tmp
function code(x, y)
	tmp = 0.0
	if ((y <= -1.0) || !(y <= 0.0185))
		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 <= 0.0185)))
		tmp = -y;
	else
		tmp = 1.0;
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[Or[LessEqual[y, -1.0], N[Not[LessEqual[y, 0.0185]], $MachinePrecision]], (-y), 1.0]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -1 \lor \neg \left(y \leq 0.0185\right):\\
\;\;\;\;-y\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -1 or 0.0184999999999999991 < y

    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-in99.9%

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1 \cdot \left(1 - x\right)\right)} - \left(-x\right) \]
      7. *-lft-identity99.9%

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

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

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

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

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

        \[\leadsto \left(-y\right) \cdot \left(1 - x\right) + \color{blue}{1} \]
      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 99.2%

      \[\leadsto y \cdot \color{blue}{\left(x - 1\right)} \]
    7. Taylor expanded in x around 0 50.4%

      \[\leadsto \color{blue}{-1 \cdot y} \]
    8. Step-by-step derivation
      1. neg-mul-150.4%

        \[\leadsto \color{blue}{-y} \]
    9. Simplified50.4%

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

    if -1 < y < 0.0184999999999999991

    1. Initial program 57.9%

      \[x + \left(1 - x\right) \cdot \left(1 - y\right) \]
    2. Step-by-step derivation
      1. +-commutative57.9%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) + x} \]
      2. remove-double-neg57.9%

        \[\leadsto \left(1 - x\right) \cdot \left(1 - y\right) + \color{blue}{\left(-\left(-x\right)\right)} \]
      3. unsub-neg57.9%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) - \left(-x\right)} \]
      4. sub-neg57.9%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(1 + \left(-y\right)\right)} - \left(-x\right) \]
      5. +-commutative57.9%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(\left(-y\right) + 1\right)} - \left(-x\right) \]
      6. distribute-rgt-in57.9%

        \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1 \cdot \left(1 - x\right)\right)} - \left(-x\right) \]
      7. *-lft-identity57.9%

        \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + \color{blue}{\left(1 - x\right)}\right) - \left(-x\right) \]
      8. associate--l+75.7%

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

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

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

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

        \[\leadsto \left(-y\right) \cdot \left(1 - x\right) + \color{blue}{1} \]
      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 78.1%

      \[\leadsto \color{blue}{1} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification63.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1 \lor \neg \left(y \leq 0.0185\right):\\ \;\;\;\;-y\\ \mathbf{else}:\\ \;\;\;\;1\\ \end{array} \]
  5. Add Preprocessing

Alternative 7: 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 80.7%

    \[x + \left(1 - x\right) \cdot \left(1 - y\right) \]
  2. Step-by-step derivation
    1. +-commutative80.7%

      \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) + x} \]
    2. remove-double-neg80.7%

      \[\leadsto \left(1 - x\right) \cdot \left(1 - y\right) + \color{blue}{\left(-\left(-x\right)\right)} \]
    3. unsub-neg80.7%

      \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) - \left(-x\right)} \]
    4. sub-neg80.7%

      \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(1 + \left(-y\right)\right)} - \left(-x\right) \]
    5. +-commutative80.7%

      \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(\left(-y\right) + 1\right)} - \left(-x\right) \]
    6. distribute-rgt-in80.7%

      \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1 \cdot \left(1 - x\right)\right)} - \left(-x\right) \]
    7. *-lft-identity80.7%

      \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + \color{blue}{\left(1 - x\right)}\right) - \left(-x\right) \]
    8. associate--l+88.9%

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

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

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

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

      \[\leadsto \left(-y\right) \cdot \left(1 - x\right) + \color{blue}{1} \]
    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 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 80.7%

    \[x + \left(1 - x\right) \cdot \left(1 - y\right) \]
  2. Step-by-step derivation
    1. +-commutative80.7%

      \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) + x} \]
    2. remove-double-neg80.7%

      \[\leadsto \left(1 - x\right) \cdot \left(1 - y\right) + \color{blue}{\left(-\left(-x\right)\right)} \]
    3. unsub-neg80.7%

      \[\leadsto \color{blue}{\left(1 - x\right) \cdot \left(1 - y\right) - \left(-x\right)} \]
    4. sub-neg80.7%

      \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(1 + \left(-y\right)\right)} - \left(-x\right) \]
    5. +-commutative80.7%

      \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(\left(-y\right) + 1\right)} - \left(-x\right) \]
    6. distribute-rgt-in80.7%

      \[\leadsto \color{blue}{\left(\left(-y\right) \cdot \left(1 - x\right) + 1 \cdot \left(1 - x\right)\right)} - \left(-x\right) \]
    7. *-lft-identity80.7%

      \[\leadsto \left(\left(-y\right) \cdot \left(1 - x\right) + \color{blue}{\left(1 - x\right)}\right) - \left(-x\right) \]
    8. associate--l+88.9%

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

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

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

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

      \[\leadsto \left(-y\right) \cdot \left(1 - x\right) + \color{blue}{1} \]
    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 37.2%

    \[\leadsto \color{blue}{1} \]
  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 2024144 
(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))))