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

Percentage Accurate: 93.8% → 99.9%
Time: 8.8s
Alternatives: 12
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 12 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: 93.8% 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: 99.9% accurate, 1.0× speedup?

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

\\
\frac{1 - x}{\frac{3}{3 - x} \cdot y}
\end{array}
Derivation
  1. Initial program 93.6%

    \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
  2. Step-by-step derivation
    1. associate-*l/99.2%

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

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

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

    \[\leadsto \color{blue}{\left(3 - x\right) \cdot \frac{1 - x}{3 \cdot y}} \]
  4. Add Preprocessing
  5. Step-by-step derivation
    1. associate-*r/93.6%

      \[\leadsto \color{blue}{\frac{\left(3 - x\right) \cdot \left(1 - x\right)}{3 \cdot y}} \]
    2. frac-times99.8%

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

      \[\leadsto \color{blue}{\frac{1}{\frac{3}{3 - x}}} \cdot \frac{1 - x}{y} \]
    4. frac-times99.9%

      \[\leadsto \color{blue}{\frac{1 \cdot \left(1 - x\right)}{\frac{3}{3 - x} \cdot y}} \]
    5. *-un-lft-identity99.9%

      \[\leadsto \frac{\color{blue}{1 - x}}{\frac{3}{3 - x} \cdot y} \]
  6. Applied egg-rr99.9%

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

    \[\leadsto \frac{1 - x}{\frac{3}{3 - x} \cdot y} \]
  8. Add Preprocessing

Alternative 2: 98.2% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -2.2 \lor \neg \left(x \leq 1.3\right):\\ \;\;\;\;-0.3333333333333333 \cdot \frac{x}{\frac{y}{3 - x}}\\ \mathbf{else}:\\ \;\;\;\;\frac{x \cdot -1.3333333333333333 + 1}{y}\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (or (<= x -2.2) (not (<= x 1.3)))
   (* -0.3333333333333333 (/ x (/ y (- 3.0 x))))
   (/ (+ (* x -1.3333333333333333) 1.0) y)))
double code(double x, double y) {
	double tmp;
	if ((x <= -2.2) || !(x <= 1.3)) {
		tmp = -0.3333333333333333 * (x / (y / (3.0 - x)));
	} else {
		tmp = ((x * -1.3333333333333333) + 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 <= (-2.2d0)) .or. (.not. (x <= 1.3d0))) then
        tmp = (-0.3333333333333333d0) * (x / (y / (3.0d0 - x)))
    else
        tmp = ((x * (-1.3333333333333333d0)) + 1.0d0) / y
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if ((x <= -2.2) || !(x <= 1.3)) {
		tmp = -0.3333333333333333 * (x / (y / (3.0 - x)));
	} else {
		tmp = ((x * -1.3333333333333333) + 1.0) / y;
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if (x <= -2.2) or not (x <= 1.3):
		tmp = -0.3333333333333333 * (x / (y / (3.0 - x)))
	else:
		tmp = ((x * -1.3333333333333333) + 1.0) / y
	return tmp
function code(x, y)
	tmp = 0.0
	if ((x <= -2.2) || !(x <= 1.3))
		tmp = Float64(-0.3333333333333333 * Float64(x / Float64(y / Float64(3.0 - x))));
	else
		tmp = Float64(Float64(Float64(x * -1.3333333333333333) + 1.0) / y);
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if ((x <= -2.2) || ~((x <= 1.3)))
		tmp = -0.3333333333333333 * (x / (y / (3.0 - x)));
	else
		tmp = ((x * -1.3333333333333333) + 1.0) / y;
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[Or[LessEqual[x, -2.2], N[Not[LessEqual[x, 1.3]], $MachinePrecision]], N[(-0.3333333333333333 * N[(x / N[(y / N[(3.0 - x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(N[(x * -1.3333333333333333), $MachinePrecision] + 1.0), $MachinePrecision] / y), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq -2.2 \lor \neg \left(x \leq 1.3\right):\\
\;\;\;\;-0.3333333333333333 \cdot \frac{x}{\frac{y}{3 - x}}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < -2.2000000000000002 or 1.30000000000000004 < x

    1. Initial program 86.6%

      \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
    2. Step-by-step derivation
      1. associate-*l/99.7%

        \[\leadsto \color{blue}{\frac{1 - x}{y \cdot 3} \cdot \left(3 - x\right)} \]
      2. *-commutative99.7%

        \[\leadsto \color{blue}{\left(3 - x\right) \cdot \frac{1 - x}{y \cdot 3}} \]
      3. *-commutative99.7%

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

      \[\leadsto \color{blue}{\left(3 - x\right) \cdot \frac{1 - x}{3 \cdot y}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 95.0%

      \[\leadsto \left(3 - x\right) \cdot \color{blue}{\left(-0.3333333333333333 \cdot \frac{x}{y}\right)} \]
    6. Taylor expanded in y around 0 81.9%

      \[\leadsto \color{blue}{-0.3333333333333333 \cdot \frac{x \cdot \left(3 - x\right)}{y}} \]
    7. Step-by-step derivation
      1. associate-/l*95.0%

        \[\leadsto -0.3333333333333333 \cdot \color{blue}{\frac{x}{\frac{y}{3 - x}}} \]
    8. Simplified95.0%

      \[\leadsto \color{blue}{-0.3333333333333333 \cdot \frac{x}{\frac{y}{3 - x}}} \]

    if -2.2000000000000002 < x < 1.30000000000000004

    1. Initial program 99.1%

      \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
    2. Step-by-step derivation
      1. associate-*l/98.8%

        \[\leadsto \color{blue}{\frac{1 - x}{y \cdot 3} \cdot \left(3 - x\right)} \]
      2. *-commutative98.8%

        \[\leadsto \color{blue}{\left(3 - x\right) \cdot \frac{1 - x}{y \cdot 3}} \]
      3. *-commutative98.8%

        \[\leadsto \left(3 - x\right) \cdot \frac{1 - x}{\color{blue}{3 \cdot y}} \]
    3. Simplified98.8%

      \[\leadsto \color{blue}{\left(3 - x\right) \cdot \frac{1 - x}{3 \cdot y}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around 0 99.5%

      \[\leadsto \color{blue}{-1.3333333333333333 \cdot \frac{x}{y} + \frac{1}{y}} \]
    6. Taylor expanded in y around 0 99.5%

      \[\leadsto \color{blue}{\frac{1 + -1.3333333333333333 \cdot x}{y}} \]
    7. Step-by-step derivation
      1. *-commutative99.5%

        \[\leadsto \frac{1 + \color{blue}{x \cdot -1.3333333333333333}}{y} \]
    8. Simplified99.5%

      \[\leadsto \color{blue}{\frac{1 + x \cdot -1.3333333333333333}{y}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification97.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -2.2 \lor \neg \left(x \leq 1.3\right):\\ \;\;\;\;-0.3333333333333333 \cdot \frac{x}{\frac{y}{3 - x}}\\ \mathbf{else}:\\ \;\;\;\;\frac{x \cdot -1.3333333333333333 + 1}{y}\\ \end{array} \]
  5. Add Preprocessing

Alternative 3: 98.2% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -2.2:\\ \;\;\;\;\frac{x}{y} \cdot \frac{x - 3}{3}\\ \mathbf{elif}\;x \leq 1.3:\\ \;\;\;\;\frac{x \cdot -1.3333333333333333 + 1}{y}\\ \mathbf{else}:\\ \;\;\;\;-0.3333333333333333 \cdot \frac{x}{\frac{y}{3 - x}}\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (<= x -2.2)
   (* (/ x y) (/ (- x 3.0) 3.0))
   (if (<= x 1.3)
     (/ (+ (* x -1.3333333333333333) 1.0) y)
     (* -0.3333333333333333 (/ x (/ y (- 3.0 x)))))))
double code(double x, double y) {
	double tmp;
	if (x <= -2.2) {
		tmp = (x / y) * ((x - 3.0) / 3.0);
	} else if (x <= 1.3) {
		tmp = ((x * -1.3333333333333333) + 1.0) / y;
	} else {
		tmp = -0.3333333333333333 * (x / (y / (3.0 - x)));
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if (x <= (-2.2d0)) then
        tmp = (x / y) * ((x - 3.0d0) / 3.0d0)
    else if (x <= 1.3d0) then
        tmp = ((x * (-1.3333333333333333d0)) + 1.0d0) / y
    else
        tmp = (-0.3333333333333333d0) * (x / (y / (3.0d0 - x)))
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if (x <= -2.2) {
		tmp = (x / y) * ((x - 3.0) / 3.0);
	} else if (x <= 1.3) {
		tmp = ((x * -1.3333333333333333) + 1.0) / y;
	} else {
		tmp = -0.3333333333333333 * (x / (y / (3.0 - x)));
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if x <= -2.2:
		tmp = (x / y) * ((x - 3.0) / 3.0)
	elif x <= 1.3:
		tmp = ((x * -1.3333333333333333) + 1.0) / y
	else:
		tmp = -0.3333333333333333 * (x / (y / (3.0 - x)))
	return tmp
function code(x, y)
	tmp = 0.0
	if (x <= -2.2)
		tmp = Float64(Float64(x / y) * Float64(Float64(x - 3.0) / 3.0));
	elseif (x <= 1.3)
		tmp = Float64(Float64(Float64(x * -1.3333333333333333) + 1.0) / y);
	else
		tmp = Float64(-0.3333333333333333 * Float64(x / Float64(y / Float64(3.0 - x))));
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if (x <= -2.2)
		tmp = (x / y) * ((x - 3.0) / 3.0);
	elseif (x <= 1.3)
		tmp = ((x * -1.3333333333333333) + 1.0) / y;
	else
		tmp = -0.3333333333333333 * (x / (y / (3.0 - x)));
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[LessEqual[x, -2.2], N[(N[(x / y), $MachinePrecision] * N[(N[(x - 3.0), $MachinePrecision] / 3.0), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 1.3], N[(N[(N[(x * -1.3333333333333333), $MachinePrecision] + 1.0), $MachinePrecision] / y), $MachinePrecision], N[(-0.3333333333333333 * N[(x / N[(y / N[(3.0 - x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq -2.2:\\
\;\;\;\;\frac{x}{y} \cdot \frac{x - 3}{3}\\

\mathbf{elif}\;x \leq 1.3:\\
\;\;\;\;\frac{x \cdot -1.3333333333333333 + 1}{y}\\

\mathbf{else}:\\
\;\;\;\;-0.3333333333333333 \cdot \frac{x}{\frac{y}{3 - x}}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if x < -2.2000000000000002

    1. Initial program 85.3%

      \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
    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. Add Preprocessing
    5. Taylor expanded in x around inf 97.3%

      \[\leadsto \color{blue}{\left(-1 \cdot \frac{x}{y}\right)} \cdot \frac{3 - x}{3} \]
    6. Step-by-step derivation
      1. neg-mul-197.3%

        \[\leadsto \color{blue}{\left(-\frac{x}{y}\right)} \cdot \frac{3 - x}{3} \]
      2. distribute-neg-frac97.3%

        \[\leadsto \color{blue}{\frac{-x}{y}} \cdot \frac{3 - x}{3} \]
    7. Simplified97.3%

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

    if -2.2000000000000002 < x < 1.30000000000000004

    1. Initial program 99.1%

      \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
    2. Step-by-step derivation
      1. associate-*l/98.8%

        \[\leadsto \color{blue}{\frac{1 - x}{y \cdot 3} \cdot \left(3 - x\right)} \]
      2. *-commutative98.8%

        \[\leadsto \color{blue}{\left(3 - x\right) \cdot \frac{1 - x}{y \cdot 3}} \]
      3. *-commutative98.8%

        \[\leadsto \left(3 - x\right) \cdot \frac{1 - x}{\color{blue}{3 \cdot y}} \]
    3. Simplified98.8%

      \[\leadsto \color{blue}{\left(3 - x\right) \cdot \frac{1 - x}{3 \cdot y}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around 0 99.5%

      \[\leadsto \color{blue}{-1.3333333333333333 \cdot \frac{x}{y} + \frac{1}{y}} \]
    6. Taylor expanded in y around 0 99.5%

      \[\leadsto \color{blue}{\frac{1 + -1.3333333333333333 \cdot x}{y}} \]
    7. Step-by-step derivation
      1. *-commutative99.5%

        \[\leadsto \frac{1 + \color{blue}{x \cdot -1.3333333333333333}}{y} \]
    8. Simplified99.5%

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

    if 1.30000000000000004 < x

    1. Initial program 87.9%

      \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
    2. Step-by-step derivation
      1. associate-*l/99.7%

        \[\leadsto \color{blue}{\frac{1 - x}{y \cdot 3} \cdot \left(3 - x\right)} \]
      2. *-commutative99.7%

        \[\leadsto \color{blue}{\left(3 - x\right) \cdot \frac{1 - x}{y \cdot 3}} \]
      3. *-commutative99.7%

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

      \[\leadsto \color{blue}{\left(3 - x\right) \cdot \frac{1 - x}{3 \cdot y}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 92.7%

      \[\leadsto \left(3 - x\right) \cdot \color{blue}{\left(-0.3333333333333333 \cdot \frac{x}{y}\right)} \]
    6. Taylor expanded in y around 0 80.9%

      \[\leadsto \color{blue}{-0.3333333333333333 \cdot \frac{x \cdot \left(3 - x\right)}{y}} \]
    7. Step-by-step derivation
      1. associate-/l*92.7%

        \[\leadsto -0.3333333333333333 \cdot \color{blue}{\frac{x}{\frac{y}{3 - x}}} \]
    8. Simplified92.7%

      \[\leadsto \color{blue}{-0.3333333333333333 \cdot \frac{x}{\frac{y}{3 - x}}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification97.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -2.2:\\ \;\;\;\;\frac{x}{y} \cdot \frac{x - 3}{3}\\ \mathbf{elif}\;x \leq 1.3:\\ \;\;\;\;\frac{x \cdot -1.3333333333333333 + 1}{y}\\ \mathbf{else}:\\ \;\;\;\;-0.3333333333333333 \cdot \frac{x}{\frac{y}{3 - x}}\\ \end{array} \]
  5. Add Preprocessing

Alternative 4: 98.1% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -4.6 \lor \neg \left(x \leq 3\right):\\ \;\;\;\;\frac{-x}{y} \cdot \left(x \cdot -0.3333333333333333\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{x \cdot -1.3333333333333333 + 1}{y}\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (or (<= x -4.6) (not (<= x 3.0)))
   (* (/ (- x) y) (* x -0.3333333333333333))
   (/ (+ (* x -1.3333333333333333) 1.0) y)))
double code(double x, double y) {
	double tmp;
	if ((x <= -4.6) || !(x <= 3.0)) {
		tmp = (-x / y) * (x * -0.3333333333333333);
	} else {
		tmp = ((x * -1.3333333333333333) + 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 <= (-4.6d0)) .or. (.not. (x <= 3.0d0))) then
        tmp = (-x / y) * (x * (-0.3333333333333333d0))
    else
        tmp = ((x * (-1.3333333333333333d0)) + 1.0d0) / 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 = ((x * -1.3333333333333333) + 1.0) / 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 = ((x * -1.3333333333333333) + 1.0) / y
	return tmp
function code(x, y)
	tmp = 0.0
	if ((x <= -4.6) || !(x <= 3.0))
		tmp = Float64(Float64(Float64(-x) / y) * Float64(x * -0.3333333333333333));
	else
		tmp = Float64(Float64(Float64(x * -1.3333333333333333) + 1.0) / 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 = ((x * -1.3333333333333333) + 1.0) / 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[(N[(x * -1.3333333333333333), $MachinePrecision] + 1.0), $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(x \cdot -0.3333333333333333\right)\\

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


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

    1. Initial program 86.3%

      \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
    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. Add Preprocessing
    5. Taylor expanded in x around inf 96.4%

      \[\leadsto \color{blue}{\left(-1 \cdot \frac{x}{y}\right)} \cdot \frac{3 - x}{3} \]
    6. Step-by-step derivation
      1. neg-mul-196.4%

        \[\leadsto \color{blue}{\left(-\frac{x}{y}\right)} \cdot \frac{3 - x}{3} \]
      2. distribute-neg-frac96.4%

        \[\leadsto \color{blue}{\frac{-x}{y}} \cdot \frac{3 - x}{3} \]
    7. Simplified96.4%

      \[\leadsto \color{blue}{\frac{-x}{y}} \cdot \frac{3 - x}{3} \]
    8. Taylor expanded in x around inf 96.2%

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

    if -4.5999999999999996 < x < 3

    1. Initial program 99.1%

      \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
    2. Step-by-step derivation
      1. associate-*l/98.8%

        \[\leadsto \color{blue}{\frac{1 - x}{y \cdot 3} \cdot \left(3 - x\right)} \]
      2. *-commutative98.8%

        \[\leadsto \color{blue}{\left(3 - x\right) \cdot \frac{1 - x}{y \cdot 3}} \]
      3. *-commutative98.8%

        \[\leadsto \left(3 - x\right) \cdot \frac{1 - x}{\color{blue}{3 \cdot y}} \]
    3. Simplified98.8%

      \[\leadsto \color{blue}{\left(3 - x\right) \cdot \frac{1 - x}{3 \cdot y}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around 0 98.4%

      \[\leadsto \color{blue}{-1.3333333333333333 \cdot \frac{x}{y} + \frac{1}{y}} \]
    6. Taylor expanded in y around 0 98.4%

      \[\leadsto \color{blue}{\frac{1 + -1.3333333333333333 \cdot x}{y}} \]
    7. Step-by-step derivation
      1. *-commutative98.4%

        \[\leadsto \frac{1 + \color{blue}{x \cdot -1.3333333333333333}}{y} \]
    8. Simplified98.4%

      \[\leadsto \color{blue}{\frac{1 + x \cdot -1.3333333333333333}{y}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification97.4%

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

Alternative 5: 64.4% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -0.75:\\ \;\;\;\;-1.3333333333333333 \cdot \frac{x}{y}\\ \mathbf{elif}\;x \leq 5:\\ \;\;\;\;\frac{1}{y}\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{y} \cdot 1.3333333333333333\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (<= x -0.75)
   (* -1.3333333333333333 (/ x y))
   (if (<= x 5.0) (/ 1.0 y) (* (/ x y) 1.3333333333333333))))
double code(double x, double y) {
	double tmp;
	if (x <= -0.75) {
		tmp = -1.3333333333333333 * (x / y);
	} else if (x <= 5.0) {
		tmp = 1.0 / y;
	} else {
		tmp = (x / y) * 1.3333333333333333;
	}
	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 = (-1.3333333333333333d0) * (x / y)
    else if (x <= 5.0d0) then
        tmp = 1.0d0 / y
    else
        tmp = (x / y) * 1.3333333333333333d0
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if (x <= -0.75) {
		tmp = -1.3333333333333333 * (x / y);
	} else if (x <= 5.0) {
		tmp = 1.0 / y;
	} else {
		tmp = (x / y) * 1.3333333333333333;
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if x <= -0.75:
		tmp = -1.3333333333333333 * (x / y)
	elif x <= 5.0:
		tmp = 1.0 / y
	else:
		tmp = (x / y) * 1.3333333333333333
	return tmp
function code(x, y)
	tmp = 0.0
	if (x <= -0.75)
		tmp = Float64(-1.3333333333333333 * Float64(x / y));
	elseif (x <= 5.0)
		tmp = Float64(1.0 / y);
	else
		tmp = Float64(Float64(x / y) * 1.3333333333333333);
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if (x <= -0.75)
		tmp = -1.3333333333333333 * (x / y);
	elseif (x <= 5.0)
		tmp = 1.0 / y;
	else
		tmp = (x / y) * 1.3333333333333333;
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[LessEqual[x, -0.75], N[(-1.3333333333333333 * N[(x / y), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 5.0], N[(1.0 / y), $MachinePrecision], N[(N[(x / y), $MachinePrecision] * 1.3333333333333333), $MachinePrecision]]]
\begin{array}{l}

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

\mathbf{elif}\;x \leq 5:\\
\;\;\;\;\frac{1}{y}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if x < -0.75

    1. Initial program 85.3%

      \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
    2. Step-by-step derivation
      1. associate-*l/99.7%

        \[\leadsto \color{blue}{\frac{1 - x}{y \cdot 3} \cdot \left(3 - x\right)} \]
      2. *-commutative99.7%

        \[\leadsto \color{blue}{\left(3 - x\right) \cdot \frac{1 - x}{y \cdot 3}} \]
      3. *-commutative99.7%

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

      \[\leadsto \color{blue}{\left(3 - x\right) \cdot \frac{1 - x}{3 \cdot y}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around 0 30.5%

      \[\leadsto \color{blue}{-1.3333333333333333 \cdot \frac{x}{y} + \frac{1}{y}} \]
    6. Taylor expanded in x around inf 30.5%

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

    if -0.75 < x < 5

    1. Initial program 99.1%

      \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
    2. Step-by-step derivation
      1. associate-*l/98.8%

        \[\leadsto \color{blue}{\frac{1 - x}{y \cdot 3} \cdot \left(3 - x\right)} \]
      2. *-commutative98.8%

        \[\leadsto \color{blue}{\left(3 - x\right) \cdot \frac{1 - x}{y \cdot 3}} \]
      3. *-commutative98.8%

        \[\leadsto \left(3 - x\right) \cdot \frac{1 - x}{\color{blue}{3 \cdot y}} \]
    3. Simplified98.8%

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

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

    if 5 < x

    1. Initial program 87.7%

      \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
    2. Step-by-step derivation
      1. associate-*l/99.7%

        \[\leadsto \color{blue}{\frac{1 - x}{y \cdot 3} \cdot \left(3 - x\right)} \]
      2. *-commutative99.7%

        \[\leadsto \color{blue}{\left(3 - x\right) \cdot \frac{1 - x}{y \cdot 3}} \]
      3. *-commutative99.7%

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

      \[\leadsto \color{blue}{\left(3 - x\right) \cdot \frac{1 - x}{3 \cdot y}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around 0 0.8%

      \[\leadsto \color{blue}{-1.3333333333333333 \cdot \frac{x}{y} + \frac{1}{y}} \]
    6. Taylor expanded in x around inf 0.8%

      \[\leadsto \color{blue}{-1.3333333333333333 \cdot \frac{x}{y}} \]
    7. Step-by-step derivation
      1. frac-2neg0.8%

        \[\leadsto -1.3333333333333333 \cdot \color{blue}{\frac{-x}{-y}} \]
      2. associate-*r/0.8%

        \[\leadsto \color{blue}{\frac{-1.3333333333333333 \cdot \left(-x\right)}{-y}} \]
      3. add-sqr-sqrt0.0%

        \[\leadsto \frac{-1.3333333333333333 \cdot \color{blue}{\left(\sqrt{-x} \cdot \sqrt{-x}\right)}}{-y} \]
      4. sqrt-unprod40.1%

        \[\leadsto \frac{-1.3333333333333333 \cdot \color{blue}{\sqrt{\left(-x\right) \cdot \left(-x\right)}}}{-y} \]
      5. sqr-neg40.1%

        \[\leadsto \frac{-1.3333333333333333 \cdot \sqrt{\color{blue}{x \cdot x}}}{-y} \]
      6. sqrt-unprod17.0%

        \[\leadsto \frac{-1.3333333333333333 \cdot \color{blue}{\left(\sqrt{x} \cdot \sqrt{x}\right)}}{-y} \]
      7. add-sqr-sqrt17.0%

        \[\leadsto \frac{-1.3333333333333333 \cdot \color{blue}{x}}{-y} \]
      8. *-commutative17.0%

        \[\leadsto \frac{\color{blue}{x \cdot -1.3333333333333333}}{-y} \]
    8. Applied egg-rr17.0%

      \[\leadsto \color{blue}{\frac{x \cdot -1.3333333333333333}{-y}} \]
    9. Step-by-step derivation
      1. neg-mul-117.0%

        \[\leadsto \frac{x \cdot -1.3333333333333333}{\color{blue}{-1 \cdot y}} \]
      2. *-commutative17.0%

        \[\leadsto \frac{x \cdot -1.3333333333333333}{\color{blue}{y \cdot -1}} \]
      3. times-frac17.0%

        \[\leadsto \color{blue}{\frac{x}{y} \cdot \frac{-1.3333333333333333}{-1}} \]
      4. metadata-eval17.0%

        \[\leadsto \frac{x}{y} \cdot \color{blue}{1.3333333333333333} \]
    10. Simplified17.0%

      \[\leadsto \color{blue}{\frac{x}{y} \cdot 1.3333333333333333} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification65.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -0.75:\\ \;\;\;\;-1.3333333333333333 \cdot \frac{x}{y}\\ \mathbf{elif}\;x \leq 5:\\ \;\;\;\;\frac{1}{y}\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{y} \cdot 1.3333333333333333\\ \end{array} \]
  5. Add Preprocessing

Alternative 6: 65.0% accurate, 0.9× speedup?

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

\\
\begin{array}{l}
\mathbf{if}\;x \leq 3:\\
\;\;\;\;\frac{x \cdot -1.3333333333333333 + 1}{y}\\

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


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

    1. Initial program 95.1%

      \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
    2. Step-by-step derivation
      1. associate-*l/99.0%

        \[\leadsto \color{blue}{\frac{1 - x}{y \cdot 3} \cdot \left(3 - x\right)} \]
      2. *-commutative99.0%

        \[\leadsto \color{blue}{\left(3 - x\right) \cdot \frac{1 - x}{y \cdot 3}} \]
      3. *-commutative99.0%

        \[\leadsto \left(3 - x\right) \cdot \frac{1 - x}{\color{blue}{3 \cdot y}} \]
    3. Simplified99.0%

      \[\leadsto \color{blue}{\left(3 - x\right) \cdot \frac{1 - x}{3 \cdot y}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around 0 79.3%

      \[\leadsto \color{blue}{-1.3333333333333333 \cdot \frac{x}{y} + \frac{1}{y}} \]
    6. Taylor expanded in y around 0 79.3%

      \[\leadsto \color{blue}{\frac{1 + -1.3333333333333333 \cdot x}{y}} \]
    7. Step-by-step derivation
      1. *-commutative79.3%

        \[\leadsto \frac{1 + \color{blue}{x \cdot -1.3333333333333333}}{y} \]
    8. Simplified79.3%

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

    if 3 < x

    1. Initial program 87.7%

      \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
    2. Step-by-step derivation
      1. associate-*l/99.7%

        \[\leadsto \color{blue}{\frac{1 - x}{y \cdot 3} \cdot \left(3 - x\right)} \]
      2. *-commutative99.7%

        \[\leadsto \color{blue}{\left(3 - x\right) \cdot \frac{1 - x}{y \cdot 3}} \]
      3. *-commutative99.7%

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

      \[\leadsto \color{blue}{\left(3 - x\right) \cdot \frac{1 - x}{3 \cdot y}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around 0 0.8%

      \[\leadsto \color{blue}{-1.3333333333333333 \cdot \frac{x}{y} + \frac{1}{y}} \]
    6. Taylor expanded in x around inf 0.8%

      \[\leadsto \color{blue}{-1.3333333333333333 \cdot \frac{x}{y}} \]
    7. Step-by-step derivation
      1. frac-2neg0.8%

        \[\leadsto -1.3333333333333333 \cdot \color{blue}{\frac{-x}{-y}} \]
      2. associate-*r/0.8%

        \[\leadsto \color{blue}{\frac{-1.3333333333333333 \cdot \left(-x\right)}{-y}} \]
      3. add-sqr-sqrt0.0%

        \[\leadsto \frac{-1.3333333333333333 \cdot \color{blue}{\left(\sqrt{-x} \cdot \sqrt{-x}\right)}}{-y} \]
      4. sqrt-unprod40.1%

        \[\leadsto \frac{-1.3333333333333333 \cdot \color{blue}{\sqrt{\left(-x\right) \cdot \left(-x\right)}}}{-y} \]
      5. sqr-neg40.1%

        \[\leadsto \frac{-1.3333333333333333 \cdot \sqrt{\color{blue}{x \cdot x}}}{-y} \]
      6. sqrt-unprod17.0%

        \[\leadsto \frac{-1.3333333333333333 \cdot \color{blue}{\left(\sqrt{x} \cdot \sqrt{x}\right)}}{-y} \]
      7. add-sqr-sqrt17.0%

        \[\leadsto \frac{-1.3333333333333333 \cdot \color{blue}{x}}{-y} \]
      8. *-commutative17.0%

        \[\leadsto \frac{\color{blue}{x \cdot -1.3333333333333333}}{-y} \]
    8. Applied egg-rr17.0%

      \[\leadsto \color{blue}{\frac{x \cdot -1.3333333333333333}{-y}} \]
    9. Step-by-step derivation
      1. neg-mul-117.0%

        \[\leadsto \frac{x \cdot -1.3333333333333333}{\color{blue}{-1 \cdot y}} \]
      2. *-commutative17.0%

        \[\leadsto \frac{x \cdot -1.3333333333333333}{\color{blue}{y \cdot -1}} \]
      3. times-frac17.0%

        \[\leadsto \color{blue}{\frac{x}{y} \cdot \frac{-1.3333333333333333}{-1}} \]
      4. metadata-eval17.0%

        \[\leadsto \frac{x}{y} \cdot \color{blue}{1.3333333333333333} \]
    10. Simplified17.0%

      \[\leadsto \color{blue}{\frac{x}{y} \cdot 1.3333333333333333} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification66.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq 3:\\ \;\;\;\;\frac{x \cdot -1.3333333333333333 + 1}{y}\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{y} \cdot 1.3333333333333333\\ \end{array} \]
  5. Add Preprocessing

Alternative 7: 99.5% accurate, 1.0× speedup?

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

\\
\left(3 - x\right) \cdot \frac{1 - x}{3 \cdot y}
\end{array}
Derivation
  1. Initial program 93.6%

    \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
  2. Step-by-step derivation
    1. associate-*l/99.2%

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

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

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

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

    \[\leadsto \left(3 - x\right) \cdot \frac{1 - x}{3 \cdot y} \]
  6. Add Preprocessing

Alternative 8: 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 93.6%

    \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
  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. Add Preprocessing
  5. Final simplification99.8%

    \[\leadsto \frac{1 - x}{y} \cdot \frac{3 - x}{3} \]
  6. Add Preprocessing

Alternative 9: 58.1% accurate, 1.1× speedup?

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

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

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


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

    1. Initial program 85.3%

      \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
    2. Step-by-step derivation
      1. associate-*l/99.7%

        \[\leadsto \color{blue}{\frac{1 - x}{y \cdot 3} \cdot \left(3 - x\right)} \]
      2. *-commutative99.7%

        \[\leadsto \color{blue}{\left(3 - x\right) \cdot \frac{1 - x}{y \cdot 3}} \]
      3. *-commutative99.7%

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

      \[\leadsto \color{blue}{\left(3 - x\right) \cdot \frac{1 - x}{3 \cdot y}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around 0 30.5%

      \[\leadsto \color{blue}{-1.3333333333333333 \cdot \frac{x}{y} + \frac{1}{y}} \]
    6. Taylor expanded in x around inf 30.5%

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

    if -0.75 < x

    1. Initial program 96.0%

      \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
    2. Step-by-step derivation
      1. associate-*l/99.0%

        \[\leadsto \color{blue}{\frac{1 - x}{y \cdot 3} \cdot \left(3 - x\right)} \]
      2. *-commutative99.0%

        \[\leadsto \color{blue}{\left(3 - x\right) \cdot \frac{1 - x}{y \cdot 3}} \]
      3. *-commutative99.0%

        \[\leadsto \left(3 - x\right) \cdot \frac{1 - x}{\color{blue}{3 \cdot y}} \]
    3. Simplified99.0%

      \[\leadsto \color{blue}{\left(3 - x\right) \cdot \frac{1 - x}{3 \cdot y}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around 0 73.3%

      \[\leadsto \color{blue}{\frac{1}{y}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification63.6%

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

Alternative 10: 64.5% accurate, 1.1× speedup?

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

\\
\begin{array}{l}
\mathbf{if}\;x \leq 3:\\
\;\;\;\;\frac{1 - x}{y}\\

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


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

    1. Initial program 95.1%

      \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
    2. Step-by-step derivation
      1. associate-*l/99.0%

        \[\leadsto \color{blue}{\frac{1 - x}{y \cdot 3} \cdot \left(3 - x\right)} \]
      2. *-commutative99.0%

        \[\leadsto \color{blue}{\left(3 - x\right) \cdot \frac{1 - x}{y \cdot 3}} \]
      3. *-commutative99.0%

        \[\leadsto \left(3 - x\right) \cdot \frac{1 - x}{\color{blue}{3 \cdot y}} \]
    3. Simplified99.0%

      \[\leadsto \color{blue}{\left(3 - x\right) \cdot \frac{1 - x}{3 \cdot y}} \]
    4. Add Preprocessing
    5. Step-by-step derivation
      1. associate-*r/95.1%

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

        \[\leadsto \color{blue}{\frac{3 - x}{3} \cdot \frac{1 - x}{y}} \]
      3. clear-num99.9%

        \[\leadsto \color{blue}{\frac{1}{\frac{3}{3 - x}}} \cdot \frac{1 - x}{y} \]
      4. frac-times99.9%

        \[\leadsto \color{blue}{\frac{1 \cdot \left(1 - x\right)}{\frac{3}{3 - x} \cdot y}} \]
      5. *-un-lft-identity99.9%

        \[\leadsto \frac{\color{blue}{1 - x}}{\frac{3}{3 - x} \cdot y} \]
    6. Applied egg-rr99.9%

      \[\leadsto \color{blue}{\frac{1 - x}{\frac{3}{3 - x} \cdot y}} \]
    7. Taylor expanded in x around 0 78.9%

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

    if 3 < x

    1. Initial program 87.7%

      \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
    2. Step-by-step derivation
      1. associate-*l/99.7%

        \[\leadsto \color{blue}{\frac{1 - x}{y \cdot 3} \cdot \left(3 - x\right)} \]
      2. *-commutative99.7%

        \[\leadsto \color{blue}{\left(3 - x\right) \cdot \frac{1 - x}{y \cdot 3}} \]
      3. *-commutative99.7%

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

      \[\leadsto \color{blue}{\left(3 - x\right) \cdot \frac{1 - x}{3 \cdot y}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around 0 0.8%

      \[\leadsto \color{blue}{-1.3333333333333333 \cdot \frac{x}{y} + \frac{1}{y}} \]
    6. Taylor expanded in x around inf 0.8%

      \[\leadsto \color{blue}{-1.3333333333333333 \cdot \frac{x}{y}} \]
    7. Step-by-step derivation
      1. frac-2neg0.8%

        \[\leadsto -1.3333333333333333 \cdot \color{blue}{\frac{-x}{-y}} \]
      2. associate-*r/0.8%

        \[\leadsto \color{blue}{\frac{-1.3333333333333333 \cdot \left(-x\right)}{-y}} \]
      3. add-sqr-sqrt0.0%

        \[\leadsto \frac{-1.3333333333333333 \cdot \color{blue}{\left(\sqrt{-x} \cdot \sqrt{-x}\right)}}{-y} \]
      4. sqrt-unprod40.1%

        \[\leadsto \frac{-1.3333333333333333 \cdot \color{blue}{\sqrt{\left(-x\right) \cdot \left(-x\right)}}}{-y} \]
      5. sqr-neg40.1%

        \[\leadsto \frac{-1.3333333333333333 \cdot \sqrt{\color{blue}{x \cdot x}}}{-y} \]
      6. sqrt-unprod17.0%

        \[\leadsto \frac{-1.3333333333333333 \cdot \color{blue}{\left(\sqrt{x} \cdot \sqrt{x}\right)}}{-y} \]
      7. add-sqr-sqrt17.0%

        \[\leadsto \frac{-1.3333333333333333 \cdot \color{blue}{x}}{-y} \]
      8. *-commutative17.0%

        \[\leadsto \frac{\color{blue}{x \cdot -1.3333333333333333}}{-y} \]
    8. Applied egg-rr17.0%

      \[\leadsto \color{blue}{\frac{x \cdot -1.3333333333333333}{-y}} \]
    9. Step-by-step derivation
      1. neg-mul-117.0%

        \[\leadsto \frac{x \cdot -1.3333333333333333}{\color{blue}{-1 \cdot y}} \]
      2. *-commutative17.0%

        \[\leadsto \frac{x \cdot -1.3333333333333333}{\color{blue}{y \cdot -1}} \]
      3. times-frac17.0%

        \[\leadsto \color{blue}{\frac{x}{y} \cdot \frac{-1.3333333333333333}{-1}} \]
      4. metadata-eval17.0%

        \[\leadsto \frac{x}{y} \cdot \color{blue}{1.3333333333333333} \]
    10. Simplified17.0%

      \[\leadsto \color{blue}{\frac{x}{y} \cdot 1.3333333333333333} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification65.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq 3:\\ \;\;\;\;\frac{1 - x}{y}\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{y} \cdot 1.3333333333333333\\ \end{array} \]
  5. Add Preprocessing

Alternative 11: 58.1% accurate, 1.2× speedup?

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

\\
\begin{array}{l}
\mathbf{if}\;x \leq -1:\\
\;\;\;\;\frac{-x}{y}\\

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


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

    1. Initial program 85.3%

      \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
    2. Step-by-step derivation
      1. associate-*l/99.7%

        \[\leadsto \color{blue}{\frac{1 - x}{y \cdot 3} \cdot \left(3 - x\right)} \]
      2. *-commutative99.7%

        \[\leadsto \color{blue}{\left(3 - x\right) \cdot \frac{1 - x}{y \cdot 3}} \]
      3. *-commutative99.7%

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

      \[\leadsto \color{blue}{\left(3 - x\right) \cdot \frac{1 - x}{3 \cdot y}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 97.2%

      \[\leadsto \left(3 - x\right) \cdot \color{blue}{\left(-0.3333333333333333 \cdot \frac{x}{y}\right)} \]
    6. Taylor expanded in x around 0 30.5%

      \[\leadsto \color{blue}{-1 \cdot \frac{x}{y}} \]
    7. Step-by-step derivation
      1. mul-1-neg30.5%

        \[\leadsto \color{blue}{-\frac{x}{y}} \]
    8. Simplified30.5%

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

    if -1 < x

    1. Initial program 96.0%

      \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
    2. Step-by-step derivation
      1. associate-*l/99.0%

        \[\leadsto \color{blue}{\frac{1 - x}{y \cdot 3} \cdot \left(3 - x\right)} \]
      2. *-commutative99.0%

        \[\leadsto \color{blue}{\left(3 - x\right) \cdot \frac{1 - x}{y \cdot 3}} \]
      3. *-commutative99.0%

        \[\leadsto \left(3 - x\right) \cdot \frac{1 - x}{\color{blue}{3 \cdot y}} \]
    3. Simplified99.0%

      \[\leadsto \color{blue}{\left(3 - x\right) \cdot \frac{1 - x}{3 \cdot y}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around 0 73.3%

      \[\leadsto \color{blue}{\frac{1}{y}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification63.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -1:\\ \;\;\;\;\frac{-x}{y}\\ \mathbf{else}:\\ \;\;\;\;\frac{1}{y}\\ \end{array} \]
  5. Add Preprocessing

Alternative 12: 51.9% 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 93.6%

    \[\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3} \]
  2. Step-by-step derivation
    1. associate-*l/99.2%

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

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

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

    \[\leadsto \color{blue}{\left(3 - x\right) \cdot \frac{1 - x}{3 \cdot y}} \]
  4. Add Preprocessing
  5. Taylor expanded in x around 0 57.8%

    \[\leadsto \color{blue}{\frac{1}{y}} \]
  6. Final simplification57.8%

    \[\leadsto \frac{1}{y} \]
  7. Add Preprocessing

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 2024031 
(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)))