Diagrams.TwoD.Arc:bezierFromSweepQ1 from diagrams-lib-1.3.0.3

Percentage Accurate: 93.9% → 99.8%
Time: 8.3s
Alternatives: 11
Speedup: 1.0×

Specification

?
\[\begin{array}{l} \\ \frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \end{array} \]
(FPCore (x y) :precision binary64 (/ (* (- 1.0 x) (- 3.0 x)) (* y 3.0)))
double code(double x, double y) {
	return ((1.0 - x) * (3.0 - x)) / (y * 3.0);
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = ((1.0d0 - x) * (3.0d0 - x)) / (y * 3.0d0)
end function
public static double code(double x, double y) {
	return ((1.0 - x) * (3.0 - x)) / (y * 3.0);
}
def code(x, y):
	return ((1.0 - x) * (3.0 - x)) / (y * 3.0)
function code(x, y)
	return Float64(Float64(Float64(1.0 - x) * Float64(3.0 - x)) / Float64(y * 3.0))
end
function tmp = code(x, y)
	tmp = ((1.0 - x) * (3.0 - x)) / (y * 3.0);
end
code[x_, y_] := N[(N[(N[(1.0 - x), $MachinePrecision] * N[(3.0 - x), $MachinePrecision]), $MachinePrecision] / N[(y * 3.0), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3}
\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 11 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: 93.9% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \end{array} \]
(FPCore (x y) :precision binary64 (/ (* (- 1.0 x) (- 3.0 x)) (* y 3.0)))
double code(double x, double y) {
	return ((1.0 - x) * (3.0 - x)) / (y * 3.0);
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = ((1.0d0 - x) * (3.0d0 - x)) / (y * 3.0d0)
end function
public static double code(double x, double y) {
	return ((1.0 - x) * (3.0 - x)) / (y * 3.0);
}
def code(x, y):
	return ((1.0 - x) * (3.0 - x)) / (y * 3.0)
function code(x, y)
	return Float64(Float64(Float64(1.0 - x) * Float64(3.0 - x)) / Float64(y * 3.0))
end
function tmp = code(x, y)
	tmp = ((1.0 - x) * (3.0 - x)) / (y * 3.0);
end
code[x_, y_] := N[(N[(N[(1.0 - x), $MachinePrecision] * N[(3.0 - x), $MachinePrecision]), $MachinePrecision] / N[(y * 3.0), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3}
\end{array}

Alternative 1: 99.8% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \frac{1 - x}{y} \cdot \frac{3 - x}{3} \end{array} \]
(FPCore (x y) :precision binary64 (* (/ (- 1.0 x) y) (/ (- 3.0 x) 3.0)))
double code(double x, double y) {
	return ((1.0 - x) / y) * ((3.0 - x) / 3.0);
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = ((1.0d0 - x) / y) * ((3.0d0 - x) / 3.0d0)
end function
public static double code(double x, double y) {
	return ((1.0 - x) / y) * ((3.0 - x) / 3.0);
}
def code(x, y):
	return ((1.0 - x) / y) * ((3.0 - x) / 3.0)
function code(x, y)
	return Float64(Float64(Float64(1.0 - x) / y) * Float64(Float64(3.0 - x) / 3.0))
end
function tmp = code(x, y)
	tmp = ((1.0 - x) / y) * ((3.0 - x) / 3.0);
end
code[x_, y_] := N[(N[(N[(1.0 - x), $MachinePrecision] / y), $MachinePrecision] * N[(N[(3.0 - x), $MachinePrecision] / 3.0), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\frac{1 - x}{y} \cdot \frac{3 - x}{3}
\end{array}
Derivation
  1. Initial program 96.3%

    \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
  2. Step-by-step derivation
    1. times-frac99.9%

      \[\leadsto \color{blue}{\frac{1 - x}{y} \cdot \frac{3 - x}{3}} \]
  3. Simplified99.9%

    \[\leadsto \color{blue}{\frac{1 - x}{y} \cdot \frac{3 - x}{3}} \]
  4. Final simplification99.9%

    \[\leadsto \frac{1 - x}{y} \cdot \frac{3 - x}{3} \]

Alternative 2: 98.7% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -1.75:\\ \;\;\;\;\left(\frac{x}{y} \cdot \left(x + -4\right)\right) \cdot 0.3333333333333333\\ \mathbf{elif}\;x \leq 1.7:\\ \;\;\;\;\frac{1 + x \cdot -1.3333333333333333}{y}\\ \mathbf{else}:\\ \;\;\;\;\left(x + -4\right) \cdot \frac{x}{y \cdot 3}\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (<= x -1.75)
   (* (* (/ x y) (+ x -4.0)) 0.3333333333333333)
   (if (<= x 1.7)
     (/ (+ 1.0 (* x -1.3333333333333333)) y)
     (* (+ x -4.0) (/ x (* y 3.0))))))
double code(double x, double y) {
	double tmp;
	if (x <= -1.75) {
		tmp = ((x / y) * (x + -4.0)) * 0.3333333333333333;
	} else if (x <= 1.7) {
		tmp = (1.0 + (x * -1.3333333333333333)) / y;
	} else {
		tmp = (x + -4.0) * (x / (y * 3.0));
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if (x <= (-1.75d0)) then
        tmp = ((x / y) * (x + (-4.0d0))) * 0.3333333333333333d0
    else if (x <= 1.7d0) then
        tmp = (1.0d0 + (x * (-1.3333333333333333d0))) / y
    else
        tmp = (x + (-4.0d0)) * (x / (y * 3.0d0))
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if (x <= -1.75) {
		tmp = ((x / y) * (x + -4.0)) * 0.3333333333333333;
	} else if (x <= 1.7) {
		tmp = (1.0 + (x * -1.3333333333333333)) / y;
	} else {
		tmp = (x + -4.0) * (x / (y * 3.0));
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if x <= -1.75:
		tmp = ((x / y) * (x + -4.0)) * 0.3333333333333333
	elif x <= 1.7:
		tmp = (1.0 + (x * -1.3333333333333333)) / y
	else:
		tmp = (x + -4.0) * (x / (y * 3.0))
	return tmp
function code(x, y)
	tmp = 0.0
	if (x <= -1.75)
		tmp = Float64(Float64(Float64(x / y) * Float64(x + -4.0)) * 0.3333333333333333);
	elseif (x <= 1.7)
		tmp = Float64(Float64(1.0 + Float64(x * -1.3333333333333333)) / y);
	else
		tmp = Float64(Float64(x + -4.0) * Float64(x / Float64(y * 3.0)));
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if (x <= -1.75)
		tmp = ((x / y) * (x + -4.0)) * 0.3333333333333333;
	elseif (x <= 1.7)
		tmp = (1.0 + (x * -1.3333333333333333)) / y;
	else
		tmp = (x + -4.0) * (x / (y * 3.0));
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[LessEqual[x, -1.75], N[(N[(N[(x / y), $MachinePrecision] * N[(x + -4.0), $MachinePrecision]), $MachinePrecision] * 0.3333333333333333), $MachinePrecision], If[LessEqual[x, 1.7], N[(N[(1.0 + N[(x * -1.3333333333333333), $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision], N[(N[(x + -4.0), $MachinePrecision] * N[(x / N[(y * 3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq -1.75:\\
\;\;\;\;\left(\frac{x}{y} \cdot \left(x + -4\right)\right) \cdot 0.3333333333333333\\

\mathbf{elif}\;x \leq 1.7:\\
\;\;\;\;\frac{1 + x \cdot -1.3333333333333333}{y}\\

\mathbf{else}:\\
\;\;\;\;\left(x + -4\right) \cdot \frac{x}{y \cdot 3}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if x < -1.75

    1. Initial program 91.4%

      \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
    2. Taylor expanded in x around inf 89.6%

      \[\leadsto \frac{\color{blue}{-4 \cdot x + {x}^{2}}}{y \cdot 3} \]
    3. Step-by-step derivation
      1. +-commutative89.6%

        \[\leadsto \frac{\color{blue}{{x}^{2} + -4 \cdot x}}{y \cdot 3} \]
      2. unpow289.6%

        \[\leadsto \frac{\color{blue}{x \cdot x} + -4 \cdot x}{y \cdot 3} \]
      3. distribute-rgt-out89.6%

        \[\leadsto \frac{\color{blue}{x \cdot \left(x + -4\right)}}{y \cdot 3} \]
    4. Simplified89.6%

      \[\leadsto \frac{\color{blue}{x \cdot \left(x + -4\right)}}{y \cdot 3} \]
    5. Step-by-step derivation
      1. associate-/r*89.7%

        \[\leadsto \color{blue}{\frac{\frac{x \cdot \left(x + -4\right)}{y}}{3}} \]
      2. div-inv89.7%

        \[\leadsto \color{blue}{\frac{x \cdot \left(x + -4\right)}{y} \cdot \frac{1}{3}} \]
      3. *-commutative89.7%

        \[\leadsto \frac{\color{blue}{\left(x + -4\right) \cdot x}}{y} \cdot \frac{1}{3} \]
      4. associate-/l*98.0%

        \[\leadsto \color{blue}{\frac{x + -4}{\frac{y}{x}}} \cdot \frac{1}{3} \]
      5. metadata-eval98.0%

        \[\leadsto \frac{x + -4}{\frac{y}{x}} \cdot \color{blue}{0.3333333333333333} \]
    6. Applied egg-rr98.0%

      \[\leadsto \color{blue}{\frac{x + -4}{\frac{y}{x}} \cdot 0.3333333333333333} \]
    7. Taylor expanded in x around 0 89.7%

      \[\leadsto \color{blue}{\left(-4 \cdot \frac{x}{y} + \frac{{x}^{2}}{y}\right)} \cdot 0.3333333333333333 \]
    8. Step-by-step derivation
      1. unpow289.7%

        \[\leadsto \left(-4 \cdot \frac{x}{y} + \frac{\color{blue}{x \cdot x}}{y}\right) \cdot 0.3333333333333333 \]
      2. associate-*r/98.0%

        \[\leadsto \left(-4 \cdot \frac{x}{y} + \color{blue}{x \cdot \frac{x}{y}}\right) \cdot 0.3333333333333333 \]
      3. distribute-rgt-in98.0%

        \[\leadsto \color{blue}{\left(\frac{x}{y} \cdot \left(-4 + x\right)\right)} \cdot 0.3333333333333333 \]
      4. +-commutative98.0%

        \[\leadsto \left(\frac{x}{y} \cdot \color{blue}{\left(x + -4\right)}\right) \cdot 0.3333333333333333 \]
    9. Simplified98.0%

      \[\leadsto \color{blue}{\left(\frac{x}{y} \cdot \left(x + -4\right)\right)} \cdot 0.3333333333333333 \]

    if -1.75 < x < 1.69999999999999996

    1. Initial program 99.4%

      \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
    2. Step-by-step derivation
      1. *-commutative99.4%

        \[\leadsto \frac{\color{blue}{\left(3 - x\right) \cdot \left(1 - x\right)}}{y \cdot 3} \]
      2. associate-*l/99.5%

        \[\leadsto \color{blue}{\frac{3 - x}{y \cdot 3} \cdot \left(1 - x\right)} \]
      3. *-commutative99.5%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \frac{3 - x}{y \cdot 3}} \]
      4. sub-neg99.5%

        \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{3 + \left(-x\right)}}{y \cdot 3} \]
      5. +-commutative99.5%

        \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{\left(-x\right) + 3}}{y \cdot 3} \]
      6. neg-sub099.5%

        \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{\left(0 - x\right)} + 3}{y \cdot 3} \]
      7. associate-+l-99.5%

        \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{0 - \left(x - 3\right)}}{y \cdot 3} \]
      8. sub0-neg99.5%

        \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{-\left(x - 3\right)}}{y \cdot 3} \]
      9. distribute-frac-neg99.5%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(-\frac{x - 3}{y \cdot 3}\right)} \]
      10. sub-neg99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{\color{blue}{x + \left(-3\right)}}{y \cdot 3}\right) \]
      11. remove-double-neg99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{\color{blue}{\left(-\left(-x\right)\right)} + \left(-3\right)}{y \cdot 3}\right) \]
      12. distribute-neg-in99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{\color{blue}{-\left(\left(-x\right) + 3\right)}}{y \cdot 3}\right) \]
      13. +-commutative99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{-\color{blue}{\left(3 + \left(-x\right)\right)}}{y \cdot 3}\right) \]
      14. sub-neg99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{-\color{blue}{\left(3 - x\right)}}{y \cdot 3}\right) \]
      15. distribute-frac-neg99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\color{blue}{\left(-\frac{3 - x}{y \cdot 3}\right)}\right) \]
      16. mul-1-neg99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\color{blue}{-1 \cdot \frac{3 - x}{y \cdot 3}}\right) \]
      17. metadata-eval99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\color{blue}{\frac{1}{-1}} \cdot \frac{3 - x}{y \cdot 3}\right) \]
      18. times-frac99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\color{blue}{\frac{1 \cdot \left(3 - x\right)}{-1 \cdot \left(y \cdot 3\right)}}\right) \]
      19. *-lft-identity99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{\color{blue}{3 - x}}{-1 \cdot \left(y \cdot 3\right)}\right) \]
      20. neg-mul-199.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{3 - x}{\color{blue}{-y \cdot 3}}\right) \]
      21. distribute-lft-neg-out99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{3 - x}{\color{blue}{\left(-y\right) \cdot 3}}\right) \]
      22. distribute-frac-neg99.5%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\frac{-\left(3 - x\right)}{\left(-y\right) \cdot 3}} \]
    3. Simplified99.5%

      \[\leadsto \color{blue}{\left(1 - x\right) \cdot \frac{x + -3}{y \cdot -3}} \]
    4. Step-by-step derivation
      1. associate-*r/99.4%

        \[\leadsto \color{blue}{\frac{\left(1 - x\right) \cdot \left(x + -3\right)}{y \cdot -3}} \]
      2. *-commutative99.4%

        \[\leadsto \frac{\left(1 - x\right) \cdot \left(x + -3\right)}{\color{blue}{-3 \cdot y}} \]
      3. associate-/r*99.9%

        \[\leadsto \color{blue}{\frac{\frac{\left(1 - x\right) \cdot \left(x + -3\right)}{-3}}{y}} \]
      4. *-commutative99.9%

        \[\leadsto \frac{\frac{\color{blue}{\left(x + -3\right) \cdot \left(1 - x\right)}}{-3}}{y} \]
    5. Applied egg-rr99.9%

      \[\leadsto \color{blue}{\frac{\frac{\left(x + -3\right) \cdot \left(1 - x\right)}{-3}}{y}} \]
    6. Taylor expanded in x around 0 98.2%

      \[\leadsto \frac{\color{blue}{1 + -1.3333333333333333 \cdot x}}{y} \]

    if 1.69999999999999996 < x

    1. Initial program 95.3%

      \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
    2. Taylor expanded in x around inf 95.3%

      \[\leadsto \frac{\color{blue}{-4 \cdot x + {x}^{2}}}{y \cdot 3} \]
    3. Step-by-step derivation
      1. +-commutative95.3%

        \[\leadsto \frac{\color{blue}{{x}^{2} + -4 \cdot x}}{y \cdot 3} \]
      2. unpow295.3%

        \[\leadsto \frac{\color{blue}{x \cdot x} + -4 \cdot x}{y \cdot 3} \]
      3. distribute-rgt-out95.3%

        \[\leadsto \frac{\color{blue}{x \cdot \left(x + -4\right)}}{y \cdot 3} \]
    4. Simplified95.3%

      \[\leadsto \frac{\color{blue}{x \cdot \left(x + -4\right)}}{y \cdot 3} \]
    5. Step-by-step derivation
      1. associate-/l*99.7%

        \[\leadsto \color{blue}{\frac{x}{\frac{y \cdot 3}{x + -4}}} \]
      2. associate-/r/99.7%

        \[\leadsto \color{blue}{\frac{x}{y \cdot 3} \cdot \left(x + -4\right)} \]
      3. *-commutative99.7%

        \[\leadsto \frac{x}{\color{blue}{3 \cdot y}} \cdot \left(x + -4\right) \]
    6. Applied egg-rr99.7%

      \[\leadsto \color{blue}{\frac{x}{3 \cdot y} \cdot \left(x + -4\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification98.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -1.75:\\ \;\;\;\;\left(\frac{x}{y} \cdot \left(x + -4\right)\right) \cdot 0.3333333333333333\\ \mathbf{elif}\;x \leq 1.7:\\ \;\;\;\;\frac{1 + x \cdot -1.3333333333333333}{y}\\ \mathbf{else}:\\ \;\;\;\;\left(x + -4\right) \cdot \frac{x}{y \cdot 3}\\ \end{array} \]

Alternative 3: 98.7% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -1.75:\\ \;\;\;\;\left(\frac{x}{y} \cdot \left(x + -4\right)\right) \cdot 0.3333333333333333\\ \mathbf{elif}\;x \leq 1.7:\\ \;\;\;\;\frac{x}{y} \cdot -1.3333333333333333 + \frac{1}{y}\\ \mathbf{else}:\\ \;\;\;\;\left(x + -4\right) \cdot \frac{x}{y \cdot 3}\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (<= x -1.75)
   (* (* (/ x y) (+ x -4.0)) 0.3333333333333333)
   (if (<= x 1.7)
     (+ (* (/ x y) -1.3333333333333333) (/ 1.0 y))
     (* (+ x -4.0) (/ x (* y 3.0))))))
double code(double x, double y) {
	double tmp;
	if (x <= -1.75) {
		tmp = ((x / y) * (x + -4.0)) * 0.3333333333333333;
	} else if (x <= 1.7) {
		tmp = ((x / y) * -1.3333333333333333) + (1.0 / y);
	} else {
		tmp = (x + -4.0) * (x / (y * 3.0));
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if (x <= (-1.75d0)) then
        tmp = ((x / y) * (x + (-4.0d0))) * 0.3333333333333333d0
    else if (x <= 1.7d0) then
        tmp = ((x / y) * (-1.3333333333333333d0)) + (1.0d0 / y)
    else
        tmp = (x + (-4.0d0)) * (x / (y * 3.0d0))
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if (x <= -1.75) {
		tmp = ((x / y) * (x + -4.0)) * 0.3333333333333333;
	} else if (x <= 1.7) {
		tmp = ((x / y) * -1.3333333333333333) + (1.0 / y);
	} else {
		tmp = (x + -4.0) * (x / (y * 3.0));
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if x <= -1.75:
		tmp = ((x / y) * (x + -4.0)) * 0.3333333333333333
	elif x <= 1.7:
		tmp = ((x / y) * -1.3333333333333333) + (1.0 / y)
	else:
		tmp = (x + -4.0) * (x / (y * 3.0))
	return tmp
function code(x, y)
	tmp = 0.0
	if (x <= -1.75)
		tmp = Float64(Float64(Float64(x / y) * Float64(x + -4.0)) * 0.3333333333333333);
	elseif (x <= 1.7)
		tmp = Float64(Float64(Float64(x / y) * -1.3333333333333333) + Float64(1.0 / y));
	else
		tmp = Float64(Float64(x + -4.0) * Float64(x / Float64(y * 3.0)));
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if (x <= -1.75)
		tmp = ((x / y) * (x + -4.0)) * 0.3333333333333333;
	elseif (x <= 1.7)
		tmp = ((x / y) * -1.3333333333333333) + (1.0 / y);
	else
		tmp = (x + -4.0) * (x / (y * 3.0));
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[LessEqual[x, -1.75], N[(N[(N[(x / y), $MachinePrecision] * N[(x + -4.0), $MachinePrecision]), $MachinePrecision] * 0.3333333333333333), $MachinePrecision], If[LessEqual[x, 1.7], N[(N[(N[(x / y), $MachinePrecision] * -1.3333333333333333), $MachinePrecision] + N[(1.0 / y), $MachinePrecision]), $MachinePrecision], N[(N[(x + -4.0), $MachinePrecision] * N[(x / N[(y * 3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq -1.75:\\
\;\;\;\;\left(\frac{x}{y} \cdot \left(x + -4\right)\right) \cdot 0.3333333333333333\\

\mathbf{elif}\;x \leq 1.7:\\
\;\;\;\;\frac{x}{y} \cdot -1.3333333333333333 + \frac{1}{y}\\

\mathbf{else}:\\
\;\;\;\;\left(x + -4\right) \cdot \frac{x}{y \cdot 3}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if x < -1.75

    1. Initial program 91.4%

      \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
    2. Taylor expanded in x around inf 89.6%

      \[\leadsto \frac{\color{blue}{-4 \cdot x + {x}^{2}}}{y \cdot 3} \]
    3. Step-by-step derivation
      1. +-commutative89.6%

        \[\leadsto \frac{\color{blue}{{x}^{2} + -4 \cdot x}}{y \cdot 3} \]
      2. unpow289.6%

        \[\leadsto \frac{\color{blue}{x \cdot x} + -4 \cdot x}{y \cdot 3} \]
      3. distribute-rgt-out89.6%

        \[\leadsto \frac{\color{blue}{x \cdot \left(x + -4\right)}}{y \cdot 3} \]
    4. Simplified89.6%

      \[\leadsto \frac{\color{blue}{x \cdot \left(x + -4\right)}}{y \cdot 3} \]
    5. Step-by-step derivation
      1. associate-/r*89.7%

        \[\leadsto \color{blue}{\frac{\frac{x \cdot \left(x + -4\right)}{y}}{3}} \]
      2. div-inv89.7%

        \[\leadsto \color{blue}{\frac{x \cdot \left(x + -4\right)}{y} \cdot \frac{1}{3}} \]
      3. *-commutative89.7%

        \[\leadsto \frac{\color{blue}{\left(x + -4\right) \cdot x}}{y} \cdot \frac{1}{3} \]
      4. associate-/l*98.0%

        \[\leadsto \color{blue}{\frac{x + -4}{\frac{y}{x}}} \cdot \frac{1}{3} \]
      5. metadata-eval98.0%

        \[\leadsto \frac{x + -4}{\frac{y}{x}} \cdot \color{blue}{0.3333333333333333} \]
    6. Applied egg-rr98.0%

      \[\leadsto \color{blue}{\frac{x + -4}{\frac{y}{x}} \cdot 0.3333333333333333} \]
    7. Taylor expanded in x around 0 89.7%

      \[\leadsto \color{blue}{\left(-4 \cdot \frac{x}{y} + \frac{{x}^{2}}{y}\right)} \cdot 0.3333333333333333 \]
    8. Step-by-step derivation
      1. unpow289.7%

        \[\leadsto \left(-4 \cdot \frac{x}{y} + \frac{\color{blue}{x \cdot x}}{y}\right) \cdot 0.3333333333333333 \]
      2. associate-*r/98.0%

        \[\leadsto \left(-4 \cdot \frac{x}{y} + \color{blue}{x \cdot \frac{x}{y}}\right) \cdot 0.3333333333333333 \]
      3. distribute-rgt-in98.0%

        \[\leadsto \color{blue}{\left(\frac{x}{y} \cdot \left(-4 + x\right)\right)} \cdot 0.3333333333333333 \]
      4. +-commutative98.0%

        \[\leadsto \left(\frac{x}{y} \cdot \color{blue}{\left(x + -4\right)}\right) \cdot 0.3333333333333333 \]
    9. Simplified98.0%

      \[\leadsto \color{blue}{\left(\frac{x}{y} \cdot \left(x + -4\right)\right)} \cdot 0.3333333333333333 \]

    if -1.75 < x < 1.69999999999999996

    1. Initial program 99.4%

      \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
    2. Step-by-step derivation
      1. *-commutative99.4%

        \[\leadsto \frac{\color{blue}{\left(3 - x\right) \cdot \left(1 - x\right)}}{y \cdot 3} \]
      2. associate-*l/99.5%

        \[\leadsto \color{blue}{\frac{3 - x}{y \cdot 3} \cdot \left(1 - x\right)} \]
      3. *-commutative99.5%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \frac{3 - x}{y \cdot 3}} \]
      4. sub-neg99.5%

        \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{3 + \left(-x\right)}}{y \cdot 3} \]
      5. +-commutative99.5%

        \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{\left(-x\right) + 3}}{y \cdot 3} \]
      6. neg-sub099.5%

        \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{\left(0 - x\right)} + 3}{y \cdot 3} \]
      7. associate-+l-99.5%

        \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{0 - \left(x - 3\right)}}{y \cdot 3} \]
      8. sub0-neg99.5%

        \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{-\left(x - 3\right)}}{y \cdot 3} \]
      9. distribute-frac-neg99.5%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(-\frac{x - 3}{y \cdot 3}\right)} \]
      10. sub-neg99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{\color{blue}{x + \left(-3\right)}}{y \cdot 3}\right) \]
      11. remove-double-neg99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{\color{blue}{\left(-\left(-x\right)\right)} + \left(-3\right)}{y \cdot 3}\right) \]
      12. distribute-neg-in99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{\color{blue}{-\left(\left(-x\right) + 3\right)}}{y \cdot 3}\right) \]
      13. +-commutative99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{-\color{blue}{\left(3 + \left(-x\right)\right)}}{y \cdot 3}\right) \]
      14. sub-neg99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{-\color{blue}{\left(3 - x\right)}}{y \cdot 3}\right) \]
      15. distribute-frac-neg99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\color{blue}{\left(-\frac{3 - x}{y \cdot 3}\right)}\right) \]
      16. mul-1-neg99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\color{blue}{-1 \cdot \frac{3 - x}{y \cdot 3}}\right) \]
      17. metadata-eval99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\color{blue}{\frac{1}{-1}} \cdot \frac{3 - x}{y \cdot 3}\right) \]
      18. times-frac99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\color{blue}{\frac{1 \cdot \left(3 - x\right)}{-1 \cdot \left(y \cdot 3\right)}}\right) \]
      19. *-lft-identity99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{\color{blue}{3 - x}}{-1 \cdot \left(y \cdot 3\right)}\right) \]
      20. neg-mul-199.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{3 - x}{\color{blue}{-y \cdot 3}}\right) \]
      21. distribute-lft-neg-out99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{3 - x}{\color{blue}{\left(-y\right) \cdot 3}}\right) \]
      22. distribute-frac-neg99.5%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\frac{-\left(3 - x\right)}{\left(-y\right) \cdot 3}} \]
    3. Simplified99.5%

      \[\leadsto \color{blue}{\left(1 - x\right) \cdot \frac{x + -3}{y \cdot -3}} \]
    4. Taylor expanded in x around 0 98.2%

      \[\leadsto \color{blue}{-1.3333333333333333 \cdot \frac{x}{y} + \frac{1}{y}} \]

    if 1.69999999999999996 < x

    1. Initial program 95.3%

      \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
    2. Taylor expanded in x around inf 95.3%

      \[\leadsto \frac{\color{blue}{-4 \cdot x + {x}^{2}}}{y \cdot 3} \]
    3. Step-by-step derivation
      1. +-commutative95.3%

        \[\leadsto \frac{\color{blue}{{x}^{2} + -4 \cdot x}}{y \cdot 3} \]
      2. unpow295.3%

        \[\leadsto \frac{\color{blue}{x \cdot x} + -4 \cdot x}{y \cdot 3} \]
      3. distribute-rgt-out95.3%

        \[\leadsto \frac{\color{blue}{x \cdot \left(x + -4\right)}}{y \cdot 3} \]
    4. Simplified95.3%

      \[\leadsto \frac{\color{blue}{x \cdot \left(x + -4\right)}}{y \cdot 3} \]
    5. Step-by-step derivation
      1. associate-/l*99.7%

        \[\leadsto \color{blue}{\frac{x}{\frac{y \cdot 3}{x + -4}}} \]
      2. associate-/r/99.7%

        \[\leadsto \color{blue}{\frac{x}{y \cdot 3} \cdot \left(x + -4\right)} \]
      3. *-commutative99.7%

        \[\leadsto \frac{x}{\color{blue}{3 \cdot y}} \cdot \left(x + -4\right) \]
    6. Applied egg-rr99.7%

      \[\leadsto \color{blue}{\frac{x}{3 \cdot y} \cdot \left(x + -4\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification98.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -1.75:\\ \;\;\;\;\left(\frac{x}{y} \cdot \left(x + -4\right)\right) \cdot 0.3333333333333333\\ \mathbf{elif}\;x \leq 1.7:\\ \;\;\;\;\frac{x}{y} \cdot -1.3333333333333333 + \frac{1}{y}\\ \mathbf{else}:\\ \;\;\;\;\left(x + -4\right) \cdot \frac{x}{y \cdot 3}\\ \end{array} \]

Alternative 4: 98.0% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -4.6 \lor \neg \left(x \leq 3\right):\\ \;\;\;\;\frac{x}{y} \cdot \left(\left(-x\right) \cdot -0.3333333333333333\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{1 + x \cdot -1.3333333333333333}{y}\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (or (<= x -4.6) (not (<= x 3.0)))
   (* (/ x y) (* (- x) -0.3333333333333333))
   (/ (+ 1.0 (* x -1.3333333333333333)) y)))
double code(double x, double y) {
	double tmp;
	if ((x <= -4.6) || !(x <= 3.0)) {
		tmp = (x / y) * (-x * -0.3333333333333333);
	} else {
		tmp = (1.0 + (x * -1.3333333333333333)) / y;
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if ((x <= (-4.6d0)) .or. (.not. (x <= 3.0d0))) then
        tmp = (x / y) * (-x * (-0.3333333333333333d0))
    else
        tmp = (1.0d0 + (x * (-1.3333333333333333d0))) / y
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if ((x <= -4.6) || !(x <= 3.0)) {
		tmp = (x / y) * (-x * -0.3333333333333333);
	} else {
		tmp = (1.0 + (x * -1.3333333333333333)) / y;
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if (x <= -4.6) or not (x <= 3.0):
		tmp = (x / y) * (-x * -0.3333333333333333)
	else:
		tmp = (1.0 + (x * -1.3333333333333333)) / y
	return tmp
function code(x, y)
	tmp = 0.0
	if ((x <= -4.6) || !(x <= 3.0))
		tmp = Float64(Float64(x / y) * Float64(Float64(-x) * -0.3333333333333333));
	else
		tmp = Float64(Float64(1.0 + Float64(x * -1.3333333333333333)) / y);
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if ((x <= -4.6) || ~((x <= 3.0)))
		tmp = (x / y) * (-x * -0.3333333333333333);
	else
		tmp = (1.0 + (x * -1.3333333333333333)) / y;
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[Or[LessEqual[x, -4.6], N[Not[LessEqual[x, 3.0]], $MachinePrecision]], N[(N[(x / y), $MachinePrecision] * N[((-x) * -0.3333333333333333), $MachinePrecision]), $MachinePrecision], N[(N[(1.0 + N[(x * -1.3333333333333333), $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq -4.6 \lor \neg \left(x \leq 3\right):\\
\;\;\;\;\frac{x}{y} \cdot \left(\left(-x\right) \cdot -0.3333333333333333\right)\\

\mathbf{else}:\\
\;\;\;\;\frac{1 + x \cdot -1.3333333333333333}{y}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < -4.5999999999999996 or 3 < x

    1. Initial program 93.4%

      \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
    2. Step-by-step derivation
      1. times-frac99.8%

        \[\leadsto \color{blue}{\frac{1 - x}{y} \cdot \frac{3 - x}{3}} \]
    3. Simplified99.8%

      \[\leadsto \color{blue}{\frac{1 - x}{y} \cdot \frac{3 - x}{3}} \]
    4. Taylor expanded in x around inf 98.6%

      \[\leadsto \frac{1 - x}{y} \cdot \color{blue}{\left(-0.3333333333333333 \cdot x\right)} \]
    5. Taylor expanded in x around inf 98.6%

      \[\leadsto \color{blue}{\left(-1 \cdot \frac{x}{y}\right)} \cdot \left(-0.3333333333333333 \cdot x\right) \]
    6. Step-by-step derivation
      1. neg-mul-198.6%

        \[\leadsto \color{blue}{\left(-\frac{x}{y}\right)} \cdot \left(-0.3333333333333333 \cdot x\right) \]
      2. distribute-neg-frac98.6%

        \[\leadsto \color{blue}{\frac{-x}{y}} \cdot \left(-0.3333333333333333 \cdot x\right) \]
    7. Simplified98.6%

      \[\leadsto \color{blue}{\frac{-x}{y}} \cdot \left(-0.3333333333333333 \cdot x\right) \]

    if -4.5999999999999996 < x < 3

    1. Initial program 99.4%

      \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
    2. Step-by-step derivation
      1. *-commutative99.4%

        \[\leadsto \frac{\color{blue}{\left(3 - x\right) \cdot \left(1 - x\right)}}{y \cdot 3} \]
      2. associate-*l/99.5%

        \[\leadsto \color{blue}{\frac{3 - x}{y \cdot 3} \cdot \left(1 - x\right)} \]
      3. *-commutative99.5%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \frac{3 - x}{y \cdot 3}} \]
      4. sub-neg99.5%

        \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{3 + \left(-x\right)}}{y \cdot 3} \]
      5. +-commutative99.5%

        \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{\left(-x\right) + 3}}{y \cdot 3} \]
      6. neg-sub099.5%

        \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{\left(0 - x\right)} + 3}{y \cdot 3} \]
      7. associate-+l-99.5%

        \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{0 - \left(x - 3\right)}}{y \cdot 3} \]
      8. sub0-neg99.5%

        \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{-\left(x - 3\right)}}{y \cdot 3} \]
      9. distribute-frac-neg99.5%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(-\frac{x - 3}{y \cdot 3}\right)} \]
      10. sub-neg99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{\color{blue}{x + \left(-3\right)}}{y \cdot 3}\right) \]
      11. remove-double-neg99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{\color{blue}{\left(-\left(-x\right)\right)} + \left(-3\right)}{y \cdot 3}\right) \]
      12. distribute-neg-in99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{\color{blue}{-\left(\left(-x\right) + 3\right)}}{y \cdot 3}\right) \]
      13. +-commutative99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{-\color{blue}{\left(3 + \left(-x\right)\right)}}{y \cdot 3}\right) \]
      14. sub-neg99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{-\color{blue}{\left(3 - x\right)}}{y \cdot 3}\right) \]
      15. distribute-frac-neg99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\color{blue}{\left(-\frac{3 - x}{y \cdot 3}\right)}\right) \]
      16. mul-1-neg99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\color{blue}{-1 \cdot \frac{3 - x}{y \cdot 3}}\right) \]
      17. metadata-eval99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\color{blue}{\frac{1}{-1}} \cdot \frac{3 - x}{y \cdot 3}\right) \]
      18. times-frac99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\color{blue}{\frac{1 \cdot \left(3 - x\right)}{-1 \cdot \left(y \cdot 3\right)}}\right) \]
      19. *-lft-identity99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{\color{blue}{3 - x}}{-1 \cdot \left(y \cdot 3\right)}\right) \]
      20. neg-mul-199.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{3 - x}{\color{blue}{-y \cdot 3}}\right) \]
      21. distribute-lft-neg-out99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{3 - x}{\color{blue}{\left(-y\right) \cdot 3}}\right) \]
      22. distribute-frac-neg99.5%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\frac{-\left(3 - x\right)}{\left(-y\right) \cdot 3}} \]
    3. Simplified99.5%

      \[\leadsto \color{blue}{\left(1 - x\right) \cdot \frac{x + -3}{y \cdot -3}} \]
    4. Step-by-step derivation
      1. associate-*r/99.4%

        \[\leadsto \color{blue}{\frac{\left(1 - x\right) \cdot \left(x + -3\right)}{y \cdot -3}} \]
      2. *-commutative99.4%

        \[\leadsto \frac{\left(1 - x\right) \cdot \left(x + -3\right)}{\color{blue}{-3 \cdot y}} \]
      3. associate-/r*99.9%

        \[\leadsto \color{blue}{\frac{\frac{\left(1 - x\right) \cdot \left(x + -3\right)}{-3}}{y}} \]
      4. *-commutative99.9%

        \[\leadsto \frac{\frac{\color{blue}{\left(x + -3\right) \cdot \left(1 - x\right)}}{-3}}{y} \]
    5. Applied egg-rr99.9%

      \[\leadsto \color{blue}{\frac{\frac{\left(x + -3\right) \cdot \left(1 - x\right)}{-3}}{y}} \]
    6. Taylor expanded in x around 0 98.2%

      \[\leadsto \frac{\color{blue}{1 + -1.3333333333333333 \cdot x}}{y} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification98.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -4.6 \lor \neg \left(x \leq 3\right):\\ \;\;\;\;\frac{x}{y} \cdot \left(\left(-x\right) \cdot -0.3333333333333333\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{1 + x \cdot -1.3333333333333333}{y}\\ \end{array} \]

Alternative 5: 98.3% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -1.75:\\ \;\;\;\;\left(\frac{x}{y} \cdot \left(x + -4\right)\right) \cdot 0.3333333333333333\\ \mathbf{elif}\;x \leq 3:\\ \;\;\;\;\frac{1 + x \cdot -1.3333333333333333}{y}\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{y} \cdot \left(\left(-x\right) \cdot -0.3333333333333333\right)\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (<= x -1.75)
   (* (* (/ x y) (+ x -4.0)) 0.3333333333333333)
   (if (<= x 3.0)
     (/ (+ 1.0 (* x -1.3333333333333333)) y)
     (* (/ x y) (* (- x) -0.3333333333333333)))))
double code(double x, double y) {
	double tmp;
	if (x <= -1.75) {
		tmp = ((x / y) * (x + -4.0)) * 0.3333333333333333;
	} else if (x <= 3.0) {
		tmp = (1.0 + (x * -1.3333333333333333)) / y;
	} else {
		tmp = (x / y) * (-x * -0.3333333333333333);
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if (x <= (-1.75d0)) then
        tmp = ((x / y) * (x + (-4.0d0))) * 0.3333333333333333d0
    else if (x <= 3.0d0) then
        tmp = (1.0d0 + (x * (-1.3333333333333333d0))) / y
    else
        tmp = (x / y) * (-x * (-0.3333333333333333d0))
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if (x <= -1.75) {
		tmp = ((x / y) * (x + -4.0)) * 0.3333333333333333;
	} else if (x <= 3.0) {
		tmp = (1.0 + (x * -1.3333333333333333)) / y;
	} else {
		tmp = (x / y) * (-x * -0.3333333333333333);
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if x <= -1.75:
		tmp = ((x / y) * (x + -4.0)) * 0.3333333333333333
	elif x <= 3.0:
		tmp = (1.0 + (x * -1.3333333333333333)) / y
	else:
		tmp = (x / y) * (-x * -0.3333333333333333)
	return tmp
function code(x, y)
	tmp = 0.0
	if (x <= -1.75)
		tmp = Float64(Float64(Float64(x / y) * Float64(x + -4.0)) * 0.3333333333333333);
	elseif (x <= 3.0)
		tmp = Float64(Float64(1.0 + Float64(x * -1.3333333333333333)) / y);
	else
		tmp = Float64(Float64(x / y) * Float64(Float64(-x) * -0.3333333333333333));
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if (x <= -1.75)
		tmp = ((x / y) * (x + -4.0)) * 0.3333333333333333;
	elseif (x <= 3.0)
		tmp = (1.0 + (x * -1.3333333333333333)) / y;
	else
		tmp = (x / y) * (-x * -0.3333333333333333);
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[LessEqual[x, -1.75], N[(N[(N[(x / y), $MachinePrecision] * N[(x + -4.0), $MachinePrecision]), $MachinePrecision] * 0.3333333333333333), $MachinePrecision], If[LessEqual[x, 3.0], N[(N[(1.0 + N[(x * -1.3333333333333333), $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision], N[(N[(x / y), $MachinePrecision] * N[((-x) * -0.3333333333333333), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq -1.75:\\
\;\;\;\;\left(\frac{x}{y} \cdot \left(x + -4\right)\right) \cdot 0.3333333333333333\\

\mathbf{elif}\;x \leq 3:\\
\;\;\;\;\frac{1 + x \cdot -1.3333333333333333}{y}\\

\mathbf{else}:\\
\;\;\;\;\frac{x}{y} \cdot \left(\left(-x\right) \cdot -0.3333333333333333\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if x < -1.75

    1. Initial program 91.4%

      \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
    2. Taylor expanded in x around inf 89.6%

      \[\leadsto \frac{\color{blue}{-4 \cdot x + {x}^{2}}}{y \cdot 3} \]
    3. Step-by-step derivation
      1. +-commutative89.6%

        \[\leadsto \frac{\color{blue}{{x}^{2} + -4 \cdot x}}{y \cdot 3} \]
      2. unpow289.6%

        \[\leadsto \frac{\color{blue}{x \cdot x} + -4 \cdot x}{y \cdot 3} \]
      3. distribute-rgt-out89.6%

        \[\leadsto \frac{\color{blue}{x \cdot \left(x + -4\right)}}{y \cdot 3} \]
    4. Simplified89.6%

      \[\leadsto \frac{\color{blue}{x \cdot \left(x + -4\right)}}{y \cdot 3} \]
    5. Step-by-step derivation
      1. associate-/r*89.7%

        \[\leadsto \color{blue}{\frac{\frac{x \cdot \left(x + -4\right)}{y}}{3}} \]
      2. div-inv89.7%

        \[\leadsto \color{blue}{\frac{x \cdot \left(x + -4\right)}{y} \cdot \frac{1}{3}} \]
      3. *-commutative89.7%

        \[\leadsto \frac{\color{blue}{\left(x + -4\right) \cdot x}}{y} \cdot \frac{1}{3} \]
      4. associate-/l*98.0%

        \[\leadsto \color{blue}{\frac{x + -4}{\frac{y}{x}}} \cdot \frac{1}{3} \]
      5. metadata-eval98.0%

        \[\leadsto \frac{x + -4}{\frac{y}{x}} \cdot \color{blue}{0.3333333333333333} \]
    6. Applied egg-rr98.0%

      \[\leadsto \color{blue}{\frac{x + -4}{\frac{y}{x}} \cdot 0.3333333333333333} \]
    7. Taylor expanded in x around 0 89.7%

      \[\leadsto \color{blue}{\left(-4 \cdot \frac{x}{y} + \frac{{x}^{2}}{y}\right)} \cdot 0.3333333333333333 \]
    8. Step-by-step derivation
      1. unpow289.7%

        \[\leadsto \left(-4 \cdot \frac{x}{y} + \frac{\color{blue}{x \cdot x}}{y}\right) \cdot 0.3333333333333333 \]
      2. associate-*r/98.0%

        \[\leadsto \left(-4 \cdot \frac{x}{y} + \color{blue}{x \cdot \frac{x}{y}}\right) \cdot 0.3333333333333333 \]
      3. distribute-rgt-in98.0%

        \[\leadsto \color{blue}{\left(\frac{x}{y} \cdot \left(-4 + x\right)\right)} \cdot 0.3333333333333333 \]
      4. +-commutative98.0%

        \[\leadsto \left(\frac{x}{y} \cdot \color{blue}{\left(x + -4\right)}\right) \cdot 0.3333333333333333 \]
    9. Simplified98.0%

      \[\leadsto \color{blue}{\left(\frac{x}{y} \cdot \left(x + -4\right)\right)} \cdot 0.3333333333333333 \]

    if -1.75 < x < 3

    1. Initial program 99.4%

      \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
    2. Step-by-step derivation
      1. *-commutative99.4%

        \[\leadsto \frac{\color{blue}{\left(3 - x\right) \cdot \left(1 - x\right)}}{y \cdot 3} \]
      2. associate-*l/99.5%

        \[\leadsto \color{blue}{\frac{3 - x}{y \cdot 3} \cdot \left(1 - x\right)} \]
      3. *-commutative99.5%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \frac{3 - x}{y \cdot 3}} \]
      4. sub-neg99.5%

        \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{3 + \left(-x\right)}}{y \cdot 3} \]
      5. +-commutative99.5%

        \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{\left(-x\right) + 3}}{y \cdot 3} \]
      6. neg-sub099.5%

        \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{\left(0 - x\right)} + 3}{y \cdot 3} \]
      7. associate-+l-99.5%

        \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{0 - \left(x - 3\right)}}{y \cdot 3} \]
      8. sub0-neg99.5%

        \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{-\left(x - 3\right)}}{y \cdot 3} \]
      9. distribute-frac-neg99.5%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(-\frac{x - 3}{y \cdot 3}\right)} \]
      10. sub-neg99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{\color{blue}{x + \left(-3\right)}}{y \cdot 3}\right) \]
      11. remove-double-neg99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{\color{blue}{\left(-\left(-x\right)\right)} + \left(-3\right)}{y \cdot 3}\right) \]
      12. distribute-neg-in99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{\color{blue}{-\left(\left(-x\right) + 3\right)}}{y \cdot 3}\right) \]
      13. +-commutative99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{-\color{blue}{\left(3 + \left(-x\right)\right)}}{y \cdot 3}\right) \]
      14. sub-neg99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{-\color{blue}{\left(3 - x\right)}}{y \cdot 3}\right) \]
      15. distribute-frac-neg99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\color{blue}{\left(-\frac{3 - x}{y \cdot 3}\right)}\right) \]
      16. mul-1-neg99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\color{blue}{-1 \cdot \frac{3 - x}{y \cdot 3}}\right) \]
      17. metadata-eval99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\color{blue}{\frac{1}{-1}} \cdot \frac{3 - x}{y \cdot 3}\right) \]
      18. times-frac99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\color{blue}{\frac{1 \cdot \left(3 - x\right)}{-1 \cdot \left(y \cdot 3\right)}}\right) \]
      19. *-lft-identity99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{\color{blue}{3 - x}}{-1 \cdot \left(y \cdot 3\right)}\right) \]
      20. neg-mul-199.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{3 - x}{\color{blue}{-y \cdot 3}}\right) \]
      21. distribute-lft-neg-out99.5%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{3 - x}{\color{blue}{\left(-y\right) \cdot 3}}\right) \]
      22. distribute-frac-neg99.5%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\frac{-\left(3 - x\right)}{\left(-y\right) \cdot 3}} \]
    3. Simplified99.5%

      \[\leadsto \color{blue}{\left(1 - x\right) \cdot \frac{x + -3}{y \cdot -3}} \]
    4. Step-by-step derivation
      1. associate-*r/99.4%

        \[\leadsto \color{blue}{\frac{\left(1 - x\right) \cdot \left(x + -3\right)}{y \cdot -3}} \]
      2. *-commutative99.4%

        \[\leadsto \frac{\left(1 - x\right) \cdot \left(x + -3\right)}{\color{blue}{-3 \cdot y}} \]
      3. associate-/r*99.9%

        \[\leadsto \color{blue}{\frac{\frac{\left(1 - x\right) \cdot \left(x + -3\right)}{-3}}{y}} \]
      4. *-commutative99.9%

        \[\leadsto \frac{\frac{\color{blue}{\left(x + -3\right) \cdot \left(1 - x\right)}}{-3}}{y} \]
    5. Applied egg-rr99.9%

      \[\leadsto \color{blue}{\frac{\frac{\left(x + -3\right) \cdot \left(1 - x\right)}{-3}}{y}} \]
    6. Taylor expanded in x around 0 98.2%

      \[\leadsto \frac{\color{blue}{1 + -1.3333333333333333 \cdot x}}{y} \]

    if 3 < x

    1. Initial program 95.3%

      \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
    2. Step-by-step derivation
      1. times-frac99.7%

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

      \[\leadsto \color{blue}{\frac{1 - x}{y} \cdot \frac{3 - x}{3}} \]
    4. Taylor expanded in x around inf 99.7%

      \[\leadsto \frac{1 - x}{y} \cdot \color{blue}{\left(-0.3333333333333333 \cdot x\right)} \]
    5. Taylor expanded in x around inf 99.7%

      \[\leadsto \color{blue}{\left(-1 \cdot \frac{x}{y}\right)} \cdot \left(-0.3333333333333333 \cdot x\right) \]
    6. Step-by-step derivation
      1. neg-mul-199.7%

        \[\leadsto \color{blue}{\left(-\frac{x}{y}\right)} \cdot \left(-0.3333333333333333 \cdot x\right) \]
      2. distribute-neg-frac99.7%

        \[\leadsto \color{blue}{\frac{-x}{y}} \cdot \left(-0.3333333333333333 \cdot x\right) \]
    7. Simplified99.7%

      \[\leadsto \color{blue}{\frac{-x}{y}} \cdot \left(-0.3333333333333333 \cdot x\right) \]
  3. Recombined 3 regimes into one program.
  4. Final simplification98.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -1.75:\\ \;\;\;\;\left(\frac{x}{y} \cdot \left(x + -4\right)\right) \cdot 0.3333333333333333\\ \mathbf{elif}\;x \leq 3:\\ \;\;\;\;\frac{1 + x \cdot -1.3333333333333333}{y}\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{y} \cdot \left(\left(-x\right) \cdot -0.3333333333333333\right)\\ \end{array} \]

Alternative 6: 99.6% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \left(1 - x\right) \cdot \frac{x + -3}{y \cdot -3} \end{array} \]
(FPCore (x y) :precision binary64 (* (- 1.0 x) (/ (+ x -3.0) (* y -3.0))))
double code(double x, double y) {
	return (1.0 - x) * ((x + -3.0) / (y * -3.0));
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = (1.0d0 - x) * ((x + (-3.0d0)) / (y * (-3.0d0)))
end function
public static double code(double x, double y) {
	return (1.0 - x) * ((x + -3.0) / (y * -3.0));
}
def code(x, y):
	return (1.0 - x) * ((x + -3.0) / (y * -3.0))
function code(x, y)
	return Float64(Float64(1.0 - x) * Float64(Float64(x + -3.0) / Float64(y * -3.0)))
end
function tmp = code(x, y)
	tmp = (1.0 - x) * ((x + -3.0) / (y * -3.0));
end
code[x_, y_] := N[(N[(1.0 - x), $MachinePrecision] * N[(N[(x + -3.0), $MachinePrecision] / N[(y * -3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\left(1 - x\right) \cdot \frac{x + -3}{y \cdot -3}
\end{array}
Derivation
  1. Initial program 96.3%

    \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
  2. Step-by-step derivation
    1. *-commutative96.3%

      \[\leadsto \frac{\color{blue}{\left(3 - x\right) \cdot \left(1 - x\right)}}{y \cdot 3} \]
    2. associate-*l/99.2%

      \[\leadsto \color{blue}{\frac{3 - x}{y \cdot 3} \cdot \left(1 - x\right)} \]
    3. *-commutative99.2%

      \[\leadsto \color{blue}{\left(1 - x\right) \cdot \frac{3 - x}{y \cdot 3}} \]
    4. sub-neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{3 + \left(-x\right)}}{y \cdot 3} \]
    5. +-commutative99.2%

      \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{\left(-x\right) + 3}}{y \cdot 3} \]
    6. neg-sub099.2%

      \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{\left(0 - x\right)} + 3}{y \cdot 3} \]
    7. associate-+l-99.2%

      \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{0 - \left(x - 3\right)}}{y \cdot 3} \]
    8. sub0-neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{-\left(x - 3\right)}}{y \cdot 3} \]
    9. distribute-frac-neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(-\frac{x - 3}{y \cdot 3}\right)} \]
    10. sub-neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\frac{\color{blue}{x + \left(-3\right)}}{y \cdot 3}\right) \]
    11. remove-double-neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\frac{\color{blue}{\left(-\left(-x\right)\right)} + \left(-3\right)}{y \cdot 3}\right) \]
    12. distribute-neg-in99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\frac{\color{blue}{-\left(\left(-x\right) + 3\right)}}{y \cdot 3}\right) \]
    13. +-commutative99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\frac{-\color{blue}{\left(3 + \left(-x\right)\right)}}{y \cdot 3}\right) \]
    14. sub-neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\frac{-\color{blue}{\left(3 - x\right)}}{y \cdot 3}\right) \]
    15. distribute-frac-neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\color{blue}{\left(-\frac{3 - x}{y \cdot 3}\right)}\right) \]
    16. mul-1-neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\color{blue}{-1 \cdot \frac{3 - x}{y \cdot 3}}\right) \]
    17. metadata-eval99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\color{blue}{\frac{1}{-1}} \cdot \frac{3 - x}{y \cdot 3}\right) \]
    18. times-frac99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\color{blue}{\frac{1 \cdot \left(3 - x\right)}{-1 \cdot \left(y \cdot 3\right)}}\right) \]
    19. *-lft-identity99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\frac{\color{blue}{3 - x}}{-1 \cdot \left(y \cdot 3\right)}\right) \]
    20. neg-mul-199.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\frac{3 - x}{\color{blue}{-y \cdot 3}}\right) \]
    21. distribute-lft-neg-out99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\frac{3 - x}{\color{blue}{\left(-y\right) \cdot 3}}\right) \]
    22. distribute-frac-neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \color{blue}{\frac{-\left(3 - x\right)}{\left(-y\right) \cdot 3}} \]
  3. Simplified99.2%

    \[\leadsto \color{blue}{\left(1 - x\right) \cdot \frac{x + -3}{y \cdot -3}} \]
  4. Final simplification99.2%

    \[\leadsto \left(1 - x\right) \cdot \frac{x + -3}{y \cdot -3} \]

Alternative 7: 57.3% accurate, 1.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -0.75:\\ \;\;\;\;\frac{x}{y} \cdot -1.3333333333333333\\ \mathbf{else}:\\ \;\;\;\;\frac{1}{y}\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (<= x -0.75) (* (/ x y) -1.3333333333333333) (/ 1.0 y)))
double code(double x, double y) {
	double tmp;
	if (x <= -0.75) {
		tmp = (x / y) * -1.3333333333333333;
	} 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 <= (-0.75d0)) then
        tmp = (x / y) * (-1.3333333333333333d0)
    else
        tmp = 1.0d0 / y
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if (x <= -0.75) {
		tmp = (x / y) * -1.3333333333333333;
	} else {
		tmp = 1.0 / y;
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if x <= -0.75:
		tmp = (x / y) * -1.3333333333333333
	else:
		tmp = 1.0 / y
	return tmp
function code(x, y)
	tmp = 0.0
	if (x <= -0.75)
		tmp = Float64(Float64(x / y) * -1.3333333333333333);
	else
		tmp = Float64(1.0 / y);
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if (x <= -0.75)
		tmp = (x / y) * -1.3333333333333333;
	else
		tmp = 1.0 / y;
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[LessEqual[x, -0.75], N[(N[(x / y), $MachinePrecision] * -1.3333333333333333), $MachinePrecision], N[(1.0 / y), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq -0.75:\\
\;\;\;\;\frac{x}{y} \cdot -1.3333333333333333\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < -0.75

    1. Initial program 91.4%

      \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
    2. Taylor expanded in x around inf 89.6%

      \[\leadsto \frac{\color{blue}{-4 \cdot x + {x}^{2}}}{y \cdot 3} \]
    3. Step-by-step derivation
      1. +-commutative89.6%

        \[\leadsto \frac{\color{blue}{{x}^{2} + -4 \cdot x}}{y \cdot 3} \]
      2. unpow289.6%

        \[\leadsto \frac{\color{blue}{x \cdot x} + -4 \cdot x}{y \cdot 3} \]
      3. distribute-rgt-out89.6%

        \[\leadsto \frac{\color{blue}{x \cdot \left(x + -4\right)}}{y \cdot 3} \]
    4. Simplified89.6%

      \[\leadsto \frac{\color{blue}{x \cdot \left(x + -4\right)}}{y \cdot 3} \]
    5. Taylor expanded in x around 0 42.2%

      \[\leadsto \color{blue}{-1.3333333333333333 \cdot \frac{x}{y}} \]

    if -0.75 < x

    1. Initial program 98.0%

      \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
    2. Step-by-step derivation
      1. *-commutative98.0%

        \[\leadsto \frac{\color{blue}{\left(3 - x\right) \cdot \left(1 - x\right)}}{y \cdot 3} \]
      2. associate-*l/99.6%

        \[\leadsto \color{blue}{\frac{3 - x}{y \cdot 3} \cdot \left(1 - x\right)} \]
      3. *-commutative99.6%

        \[\leadsto \color{blue}{\left(1 - x\right) \cdot \frac{3 - x}{y \cdot 3}} \]
      4. sub-neg99.6%

        \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{3 + \left(-x\right)}}{y \cdot 3} \]
      5. +-commutative99.6%

        \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{\left(-x\right) + 3}}{y \cdot 3} \]
      6. neg-sub099.6%

        \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{\left(0 - x\right)} + 3}{y \cdot 3} \]
      7. associate-+l-99.6%

        \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{0 - \left(x - 3\right)}}{y \cdot 3} \]
      8. sub0-neg99.6%

        \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{-\left(x - 3\right)}}{y \cdot 3} \]
      9. distribute-frac-neg99.6%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(-\frac{x - 3}{y \cdot 3}\right)} \]
      10. sub-neg99.6%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{\color{blue}{x + \left(-3\right)}}{y \cdot 3}\right) \]
      11. remove-double-neg99.6%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{\color{blue}{\left(-\left(-x\right)\right)} + \left(-3\right)}{y \cdot 3}\right) \]
      12. distribute-neg-in99.6%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{\color{blue}{-\left(\left(-x\right) + 3\right)}}{y \cdot 3}\right) \]
      13. +-commutative99.6%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{-\color{blue}{\left(3 + \left(-x\right)\right)}}{y \cdot 3}\right) \]
      14. sub-neg99.6%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{-\color{blue}{\left(3 - x\right)}}{y \cdot 3}\right) \]
      15. distribute-frac-neg99.6%

        \[\leadsto \left(1 - x\right) \cdot \left(-\color{blue}{\left(-\frac{3 - x}{y \cdot 3}\right)}\right) \]
      16. mul-1-neg99.6%

        \[\leadsto \left(1 - x\right) \cdot \left(-\color{blue}{-1 \cdot \frac{3 - x}{y \cdot 3}}\right) \]
      17. metadata-eval99.6%

        \[\leadsto \left(1 - x\right) \cdot \left(-\color{blue}{\frac{1}{-1}} \cdot \frac{3 - x}{y \cdot 3}\right) \]
      18. times-frac99.6%

        \[\leadsto \left(1 - x\right) \cdot \left(-\color{blue}{\frac{1 \cdot \left(3 - x\right)}{-1 \cdot \left(y \cdot 3\right)}}\right) \]
      19. *-lft-identity99.6%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{\color{blue}{3 - x}}{-1 \cdot \left(y \cdot 3\right)}\right) \]
      20. neg-mul-199.6%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{3 - x}{\color{blue}{-y \cdot 3}}\right) \]
      21. distribute-lft-neg-out99.6%

        \[\leadsto \left(1 - x\right) \cdot \left(-\frac{3 - x}{\color{blue}{\left(-y\right) \cdot 3}}\right) \]
      22. distribute-frac-neg99.6%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\frac{-\left(3 - x\right)}{\left(-y\right) \cdot 3}} \]
    3. Simplified99.6%

      \[\leadsto \color{blue}{\left(1 - x\right) \cdot \frac{x + -3}{y \cdot -3}} \]
    4. Step-by-step derivation
      1. frac-2neg99.6%

        \[\leadsto \left(1 - x\right) \cdot \color{blue}{\frac{-\left(x + -3\right)}{-y \cdot -3}} \]
      2. +-commutative99.6%

        \[\leadsto \left(1 - x\right) \cdot \frac{-\color{blue}{\left(-3 + x\right)}}{-y \cdot -3} \]
      3. distribute-neg-in99.6%

        \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{\left(--3\right) + \left(-x\right)}}{-y \cdot -3} \]
      4. metadata-eval99.6%

        \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{3} + \left(-x\right)}{-y \cdot -3} \]
      5. sub-neg99.6%

        \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{3 - x}}{-y \cdot -3} \]
      6. distribute-rgt-neg-in99.6%

        \[\leadsto \left(1 - x\right) \cdot \frac{3 - x}{\color{blue}{y \cdot \left(--3\right)}} \]
      7. metadata-eval99.6%

        \[\leadsto \left(1 - x\right) \cdot \frac{3 - x}{y \cdot \color{blue}{3}} \]
      8. associate-*r/98.0%

        \[\leadsto \color{blue}{\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3}} \]
      9. frac-times99.9%

        \[\leadsto \color{blue}{\frac{1 - x}{y} \cdot \frac{3 - x}{3}} \]
      10. clear-num99.8%

        \[\leadsto \color{blue}{\frac{1}{\frac{y}{1 - x}}} \cdot \frac{3 - x}{3} \]
      11. frac-times99.6%

        \[\leadsto \color{blue}{\frac{1 \cdot \left(3 - x\right)}{\frac{y}{1 - x} \cdot 3}} \]
      12. *-un-lft-identity99.6%

        \[\leadsto \frac{\color{blue}{3 - x}}{\frac{y}{1 - x} \cdot 3} \]
    5. Applied egg-rr99.6%

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

        \[\leadsto \frac{3 - x}{\color{blue}{3 \cdot \frac{y}{1 - x}}} \]
      2. associate-*r/99.5%

        \[\leadsto \frac{3 - x}{\color{blue}{\frac{3 \cdot y}{1 - x}}} \]
    7. Simplified99.5%

      \[\leadsto \color{blue}{\frac{3 - x}{\frac{3 \cdot y}{1 - x}}} \]
    8. Taylor expanded in x around 0 65.1%

      \[\leadsto \color{blue}{\frac{1}{y}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification59.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -0.75:\\ \;\;\;\;\frac{x}{y} \cdot -1.3333333333333333\\ \mathbf{else}:\\ \;\;\;\;\frac{1}{y}\\ \end{array} \]

Alternative 8: 56.3% accurate, 1.6× speedup?

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

\\
\left(1 - x\right) \cdot \frac{1}{y}
\end{array}
Derivation
  1. Initial program 96.3%

    \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
  2. Step-by-step derivation
    1. *-commutative96.3%

      \[\leadsto \frac{\color{blue}{\left(3 - x\right) \cdot \left(1 - x\right)}}{y \cdot 3} \]
    2. associate-*l/99.2%

      \[\leadsto \color{blue}{\frac{3 - x}{y \cdot 3} \cdot \left(1 - x\right)} \]
    3. *-commutative99.2%

      \[\leadsto \color{blue}{\left(1 - x\right) \cdot \frac{3 - x}{y \cdot 3}} \]
    4. sub-neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{3 + \left(-x\right)}}{y \cdot 3} \]
    5. +-commutative99.2%

      \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{\left(-x\right) + 3}}{y \cdot 3} \]
    6. neg-sub099.2%

      \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{\left(0 - x\right)} + 3}{y \cdot 3} \]
    7. associate-+l-99.2%

      \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{0 - \left(x - 3\right)}}{y \cdot 3} \]
    8. sub0-neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{-\left(x - 3\right)}}{y \cdot 3} \]
    9. distribute-frac-neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(-\frac{x - 3}{y \cdot 3}\right)} \]
    10. sub-neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\frac{\color{blue}{x + \left(-3\right)}}{y \cdot 3}\right) \]
    11. remove-double-neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\frac{\color{blue}{\left(-\left(-x\right)\right)} + \left(-3\right)}{y \cdot 3}\right) \]
    12. distribute-neg-in99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\frac{\color{blue}{-\left(\left(-x\right) + 3\right)}}{y \cdot 3}\right) \]
    13. +-commutative99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\frac{-\color{blue}{\left(3 + \left(-x\right)\right)}}{y \cdot 3}\right) \]
    14. sub-neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\frac{-\color{blue}{\left(3 - x\right)}}{y \cdot 3}\right) \]
    15. distribute-frac-neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\color{blue}{\left(-\frac{3 - x}{y \cdot 3}\right)}\right) \]
    16. mul-1-neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\color{blue}{-1 \cdot \frac{3 - x}{y \cdot 3}}\right) \]
    17. metadata-eval99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\color{blue}{\frac{1}{-1}} \cdot \frac{3 - x}{y \cdot 3}\right) \]
    18. times-frac99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\color{blue}{\frac{1 \cdot \left(3 - x\right)}{-1 \cdot \left(y \cdot 3\right)}}\right) \]
    19. *-lft-identity99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\frac{\color{blue}{3 - x}}{-1 \cdot \left(y \cdot 3\right)}\right) \]
    20. neg-mul-199.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\frac{3 - x}{\color{blue}{-y \cdot 3}}\right) \]
    21. distribute-lft-neg-out99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\frac{3 - x}{\color{blue}{\left(-y\right) \cdot 3}}\right) \]
    22. distribute-frac-neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \color{blue}{\frac{-\left(3 - x\right)}{\left(-y\right) \cdot 3}} \]
  3. Simplified99.2%

    \[\leadsto \color{blue}{\left(1 - x\right) \cdot \frac{x + -3}{y \cdot -3}} \]
  4. Taylor expanded in x around 0 58.2%

    \[\leadsto \left(1 - x\right) \cdot \color{blue}{\frac{1}{y}} \]
  5. Final simplification58.2%

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

Alternative 9: 56.8% accurate, 1.6× speedup?

\[\begin{array}{l} \\ \frac{1 + x \cdot -1.3333333333333333}{y} \end{array} \]
(FPCore (x y) :precision binary64 (/ (+ 1.0 (* x -1.3333333333333333)) y))
double code(double x, double y) {
	return (1.0 + (x * -1.3333333333333333)) / y;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = (1.0d0 + (x * (-1.3333333333333333d0))) / y
end function
public static double code(double x, double y) {
	return (1.0 + (x * -1.3333333333333333)) / y;
}
def code(x, y):
	return (1.0 + (x * -1.3333333333333333)) / y
function code(x, y)
	return Float64(Float64(1.0 + Float64(x * -1.3333333333333333)) / y)
end
function tmp = code(x, y)
	tmp = (1.0 + (x * -1.3333333333333333)) / y;
end
code[x_, y_] := N[(N[(1.0 + N[(x * -1.3333333333333333), $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision]
\begin{array}{l}

\\
\frac{1 + x \cdot -1.3333333333333333}{y}
\end{array}
Derivation
  1. Initial program 96.3%

    \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
  2. Step-by-step derivation
    1. *-commutative96.3%

      \[\leadsto \frac{\color{blue}{\left(3 - x\right) \cdot \left(1 - x\right)}}{y \cdot 3} \]
    2. associate-*l/99.2%

      \[\leadsto \color{blue}{\frac{3 - x}{y \cdot 3} \cdot \left(1 - x\right)} \]
    3. *-commutative99.2%

      \[\leadsto \color{blue}{\left(1 - x\right) \cdot \frac{3 - x}{y \cdot 3}} \]
    4. sub-neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{3 + \left(-x\right)}}{y \cdot 3} \]
    5. +-commutative99.2%

      \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{\left(-x\right) + 3}}{y \cdot 3} \]
    6. neg-sub099.2%

      \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{\left(0 - x\right)} + 3}{y \cdot 3} \]
    7. associate-+l-99.2%

      \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{0 - \left(x - 3\right)}}{y \cdot 3} \]
    8. sub0-neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{-\left(x - 3\right)}}{y \cdot 3} \]
    9. distribute-frac-neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(-\frac{x - 3}{y \cdot 3}\right)} \]
    10. sub-neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\frac{\color{blue}{x + \left(-3\right)}}{y \cdot 3}\right) \]
    11. remove-double-neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\frac{\color{blue}{\left(-\left(-x\right)\right)} + \left(-3\right)}{y \cdot 3}\right) \]
    12. distribute-neg-in99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\frac{\color{blue}{-\left(\left(-x\right) + 3\right)}}{y \cdot 3}\right) \]
    13. +-commutative99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\frac{-\color{blue}{\left(3 + \left(-x\right)\right)}}{y \cdot 3}\right) \]
    14. sub-neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\frac{-\color{blue}{\left(3 - x\right)}}{y \cdot 3}\right) \]
    15. distribute-frac-neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\color{blue}{\left(-\frac{3 - x}{y \cdot 3}\right)}\right) \]
    16. mul-1-neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\color{blue}{-1 \cdot \frac{3 - x}{y \cdot 3}}\right) \]
    17. metadata-eval99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\color{blue}{\frac{1}{-1}} \cdot \frac{3 - x}{y \cdot 3}\right) \]
    18. times-frac99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\color{blue}{\frac{1 \cdot \left(3 - x\right)}{-1 \cdot \left(y \cdot 3\right)}}\right) \]
    19. *-lft-identity99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\frac{\color{blue}{3 - x}}{-1 \cdot \left(y \cdot 3\right)}\right) \]
    20. neg-mul-199.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\frac{3 - x}{\color{blue}{-y \cdot 3}}\right) \]
    21. distribute-lft-neg-out99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\frac{3 - x}{\color{blue}{\left(-y\right) \cdot 3}}\right) \]
    22. distribute-frac-neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \color{blue}{\frac{-\left(3 - x\right)}{\left(-y\right) \cdot 3}} \]
  3. Simplified99.2%

    \[\leadsto \color{blue}{\left(1 - x\right) \cdot \frac{x + -3}{y \cdot -3}} \]
  4. Step-by-step derivation
    1. associate-*r/96.3%

      \[\leadsto \color{blue}{\frac{\left(1 - x\right) \cdot \left(x + -3\right)}{y \cdot -3}} \]
    2. *-commutative96.3%

      \[\leadsto \frac{\left(1 - x\right) \cdot \left(x + -3\right)}{\color{blue}{-3 \cdot y}} \]
    3. associate-/r*96.6%

      \[\leadsto \color{blue}{\frac{\frac{\left(1 - x\right) \cdot \left(x + -3\right)}{-3}}{y}} \]
    4. *-commutative96.6%

      \[\leadsto \frac{\frac{\color{blue}{\left(x + -3\right) \cdot \left(1 - x\right)}}{-3}}{y} \]
  5. Applied egg-rr96.6%

    \[\leadsto \color{blue}{\frac{\frac{\left(x + -3\right) \cdot \left(1 - x\right)}{-3}}{y}} \]
  6. Taylor expanded in x around 0 58.6%

    \[\leadsto \frac{\color{blue}{1 + -1.3333333333333333 \cdot x}}{y} \]
  7. Final simplification58.6%

    \[\leadsto \frac{1 + x \cdot -1.3333333333333333}{y} \]

Alternative 10: 56.3% accurate, 2.2× speedup?

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

\\
\frac{1 - x}{y}
\end{array}
Derivation
  1. Initial program 96.3%

    \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
  2. Step-by-step derivation
    1. times-frac99.9%

      \[\leadsto \color{blue}{\frac{1 - x}{y} \cdot \frac{3 - x}{3}} \]
  3. Simplified99.9%

    \[\leadsto \color{blue}{\frac{1 - x}{y} \cdot \frac{3 - x}{3}} \]
  4. Taylor expanded in x around 0 58.2%

    \[\leadsto \frac{1 - x}{y} \cdot \color{blue}{1} \]
  5. Final simplification58.2%

    \[\leadsto \frac{1 - x}{y} \]

Alternative 11: 51.2% accurate, 3.7× speedup?

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

\\
\frac{1}{y}
\end{array}
Derivation
  1. Initial program 96.3%

    \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
  2. Step-by-step derivation
    1. *-commutative96.3%

      \[\leadsto \frac{\color{blue}{\left(3 - x\right) \cdot \left(1 - x\right)}}{y \cdot 3} \]
    2. associate-*l/99.2%

      \[\leadsto \color{blue}{\frac{3 - x}{y \cdot 3} \cdot \left(1 - x\right)} \]
    3. *-commutative99.2%

      \[\leadsto \color{blue}{\left(1 - x\right) \cdot \frac{3 - x}{y \cdot 3}} \]
    4. sub-neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{3 + \left(-x\right)}}{y \cdot 3} \]
    5. +-commutative99.2%

      \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{\left(-x\right) + 3}}{y \cdot 3} \]
    6. neg-sub099.2%

      \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{\left(0 - x\right)} + 3}{y \cdot 3} \]
    7. associate-+l-99.2%

      \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{0 - \left(x - 3\right)}}{y \cdot 3} \]
    8. sub0-neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{-\left(x - 3\right)}}{y \cdot 3} \]
    9. distribute-frac-neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \color{blue}{\left(-\frac{x - 3}{y \cdot 3}\right)} \]
    10. sub-neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\frac{\color{blue}{x + \left(-3\right)}}{y \cdot 3}\right) \]
    11. remove-double-neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\frac{\color{blue}{\left(-\left(-x\right)\right)} + \left(-3\right)}{y \cdot 3}\right) \]
    12. distribute-neg-in99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\frac{\color{blue}{-\left(\left(-x\right) + 3\right)}}{y \cdot 3}\right) \]
    13. +-commutative99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\frac{-\color{blue}{\left(3 + \left(-x\right)\right)}}{y \cdot 3}\right) \]
    14. sub-neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\frac{-\color{blue}{\left(3 - x\right)}}{y \cdot 3}\right) \]
    15. distribute-frac-neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\color{blue}{\left(-\frac{3 - x}{y \cdot 3}\right)}\right) \]
    16. mul-1-neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\color{blue}{-1 \cdot \frac{3 - x}{y \cdot 3}}\right) \]
    17. metadata-eval99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\color{blue}{\frac{1}{-1}} \cdot \frac{3 - x}{y \cdot 3}\right) \]
    18. times-frac99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\color{blue}{\frac{1 \cdot \left(3 - x\right)}{-1 \cdot \left(y \cdot 3\right)}}\right) \]
    19. *-lft-identity99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\frac{\color{blue}{3 - x}}{-1 \cdot \left(y \cdot 3\right)}\right) \]
    20. neg-mul-199.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\frac{3 - x}{\color{blue}{-y \cdot 3}}\right) \]
    21. distribute-lft-neg-out99.2%

      \[\leadsto \left(1 - x\right) \cdot \left(-\frac{3 - x}{\color{blue}{\left(-y\right) \cdot 3}}\right) \]
    22. distribute-frac-neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \color{blue}{\frac{-\left(3 - x\right)}{\left(-y\right) \cdot 3}} \]
  3. Simplified99.2%

    \[\leadsto \color{blue}{\left(1 - x\right) \cdot \frac{x + -3}{y \cdot -3}} \]
  4. Step-by-step derivation
    1. frac-2neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \color{blue}{\frac{-\left(x + -3\right)}{-y \cdot -3}} \]
    2. +-commutative99.2%

      \[\leadsto \left(1 - x\right) \cdot \frac{-\color{blue}{\left(-3 + x\right)}}{-y \cdot -3} \]
    3. distribute-neg-in99.2%

      \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{\left(--3\right) + \left(-x\right)}}{-y \cdot -3} \]
    4. metadata-eval99.2%

      \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{3} + \left(-x\right)}{-y \cdot -3} \]
    5. sub-neg99.2%

      \[\leadsto \left(1 - x\right) \cdot \frac{\color{blue}{3 - x}}{-y \cdot -3} \]
    6. distribute-rgt-neg-in99.2%

      \[\leadsto \left(1 - x\right) \cdot \frac{3 - x}{\color{blue}{y \cdot \left(--3\right)}} \]
    7. metadata-eval99.2%

      \[\leadsto \left(1 - x\right) \cdot \frac{3 - x}{y \cdot \color{blue}{3}} \]
    8. associate-*r/96.3%

      \[\leadsto \color{blue}{\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3}} \]
    9. frac-times99.9%

      \[\leadsto \color{blue}{\frac{1 - x}{y} \cdot \frac{3 - x}{3}} \]
    10. clear-num99.8%

      \[\leadsto \color{blue}{\frac{1}{\frac{y}{1 - x}}} \cdot \frac{3 - x}{3} \]
    11. frac-times99.6%

      \[\leadsto \color{blue}{\frac{1 \cdot \left(3 - x\right)}{\frac{y}{1 - x} \cdot 3}} \]
    12. *-un-lft-identity99.6%

      \[\leadsto \frac{\color{blue}{3 - x}}{\frac{y}{1 - x} \cdot 3} \]
  5. Applied egg-rr99.6%

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

      \[\leadsto \frac{3 - x}{\color{blue}{3 \cdot \frac{y}{1 - x}}} \]
    2. associate-*r/99.2%

      \[\leadsto \frac{3 - x}{\color{blue}{\frac{3 \cdot y}{1 - x}}} \]
  7. Simplified99.2%

    \[\leadsto \color{blue}{\frac{3 - x}{\frac{3 \cdot y}{1 - x}}} \]
  8. Taylor expanded in x around 0 49.1%

    \[\leadsto \color{blue}{\frac{1}{y}} \]
  9. Final simplification49.1%

    \[\leadsto \frac{1}{y} \]

Developer target: 99.8% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \frac{1 - x}{y} \cdot \frac{3 - x}{3} \end{array} \]
(FPCore (x y) :precision binary64 (* (/ (- 1.0 x) y) (/ (- 3.0 x) 3.0)))
double code(double x, double y) {
	return ((1.0 - x) / y) * ((3.0 - x) / 3.0);
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = ((1.0d0 - x) / y) * ((3.0d0 - x) / 3.0d0)
end function
public static double code(double x, double y) {
	return ((1.0 - x) / y) * ((3.0 - x) / 3.0);
}
def code(x, y):
	return ((1.0 - x) / y) * ((3.0 - x) / 3.0)
function code(x, y)
	return Float64(Float64(Float64(1.0 - x) / y) * Float64(Float64(3.0 - x) / 3.0))
end
function tmp = code(x, y)
	tmp = ((1.0 - x) / y) * ((3.0 - x) / 3.0);
end
code[x_, y_] := N[(N[(N[(1.0 - x), $MachinePrecision] / y), $MachinePrecision] * N[(N[(3.0 - x), $MachinePrecision] / 3.0), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\frac{1 - x}{y} \cdot \frac{3 - x}{3}
\end{array}

Reproduce

?
herbie shell --seed 2023310 
(FPCore (x y)
  :name "Diagrams.TwoD.Arc:bezierFromSweepQ1 from diagrams-lib-1.3.0.3"
  :precision binary64

  :herbie-target
  (* (/ (- 1.0 x) y) (/ (- 3.0 x) 3.0))

  (/ (* (- 1.0 x) (- 3.0 x)) (* y 3.0)))