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

Percentage Accurate: 94.4% → 99.9%

Time: 26.2s

Alternatives: 14

Speedup: 1.0×

• 25.1% of points produce a very large (infinite) output. You may want to add a precondition.

Specification

Math

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

FPCore

(FPCore (x y) :precision binary64 (/ (* (- 1.0 x) (- 3.0 x)) (* y 3.0)))

C

double code(double x, double y) {
	return ((1.0 - x) * (3.0 - x)) / (y * 3.0);
}

Fortran

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

Java

public static double code(double x, double y) {
	return ((1.0 - x) * (3.0 - x)) / (y * 3.0);
}

Python

def code(x, y):
	return ((1.0 - x) * (3.0 - x)) / (y * 3.0)

Julia

function code(x, y)
	return Float64(Float64(Float64(1.0 - x) * Float64(3.0 - x)) / Float64(y * 3.0))
end

MATLAB

function tmp = code(x, y)
	tmp = ((1.0 - x) * (3.0 - x)) / (y * 3.0);
end

Wolfram

code[x_, y_] := N[(N[(N[(1.0 - x), $MachinePrecision] * N[(3.0 - x), $MachinePrecision]), $MachinePrecision] / N[(y * 3.0), $MachinePrecision]), $MachinePrecision]

Initial Program: 94.4% accurate, 1.0× speedup

Math

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

FPCore

(FPCore (x y) :precision binary64 (/ (* (- 1.0 x) (- 3.0 x)) (* y 3.0)))

C

double code(double x, double y) {
	return ((1.0 - x) * (3.0 - x)) / (y * 3.0);
}

Fortran

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

Java

public static double code(double x, double y) {
	return ((1.0 - x) * (3.0 - x)) / (y * 3.0);
}

Python

def code(x, y):
	return ((1.0 - x) * (3.0 - x)) / (y * 3.0)

Julia

function code(x, y)
	return Float64(Float64(Float64(1.0 - x) * Float64(3.0 - x)) / Float64(y * 3.0))
end

MATLAB

function tmp = code(x, y)
	tmp = ((1.0 - x) * (3.0 - x)) / (y * 3.0);
end

Wolfram

code[x_, y_] := N[(N[(N[(1.0 - x), $MachinePrecision] * N[(3.0 - x), $MachinePrecision]), $MachinePrecision] / N[(y * 3.0), $MachinePrecision]), $MachinePrecision]

Alternative 1: 99.9% accurate, 1.0× speedup

Math

\[\begin{array}{l} \\ \frac{x - 3}{3} \cdot \frac{x + -1}{y} \end{array} \]

FPCore

(FPCore (x y) :precision binary64 (* (/ (- x 3.0) 3.0) (/ (+ x -1.0) y)))

C

double code(double x, double y) {
	return ((x - 3.0) / 3.0) * ((x + -1.0) / y);
}

Fortran

real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = ((x - 3.0d0) / 3.0d0) * ((x + (-1.0d0)) / y)
end function

Java

public static double code(double x, double y) {
	return ((x - 3.0) / 3.0) * ((x + -1.0) / y);
}

Python

def code(x, y):
	return ((x - 3.0) / 3.0) * ((x + -1.0) / y)

Julia

function code(x, y)
	return Float64(Float64(Float64(x - 3.0) / 3.0) * Float64(Float64(x + -1.0) / y))
end

MATLAB

function tmp = code(x, y)
	tmp = ((x - 3.0) / 3.0) * ((x + -1.0) / y);
end

Wolfram

code[x_, y_] := N[(N[(N[(x - 3.0), $MachinePrecision] / 3.0), $MachinePrecision] * N[(N[(x + -1.0), $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]

Derivation

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-frac 99.8%

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

3. Simplified 99.8%

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

4. Final simplification 99.8%

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

Alternative 2: 97.8% accurate, 0.8× speedup

Math

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

FPCore

(FPCore (x y)
 :precision binary64
 (if (or (<= x -1.75) (not (<= x 1.75)))
   (* -0.3333333333333333 (* x (/ (- 3.0 x) y)))
   (/ (- 1.0 x) y)))

C

double code(double x, double y) {
	double tmp;
	if ((x <= -1.75) || !(x <= 1.75)) {
		tmp = -0.3333333333333333 * (x * ((3.0 - x) / y));
	} else {
		tmp = (1.0 - x) / y;
	}
	return tmp;
}

Fortran

real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if ((x <= (-1.75d0)) .or. (.not. (x <= 1.75d0))) then
        tmp = (-0.3333333333333333d0) * (x * ((3.0d0 - x) / y))
    else
        tmp = (1.0d0 - x) / y
    end if
    code = tmp
end function

Java

public static double code(double x, double y) {
	double tmp;
	if ((x <= -1.75) || !(x <= 1.75)) {
		tmp = -0.3333333333333333 * (x * ((3.0 - x) / y));
	} else {
		tmp = (1.0 - x) / y;
	}
	return tmp;
}

Python

def code(x, y):
	tmp = 0
	if (x <= -1.75) or not (x <= 1.75):
		tmp = -0.3333333333333333 * (x * ((3.0 - x) / y))
	else:
		tmp = (1.0 - x) / y
	return tmp

Julia

function code(x, y)
	tmp = 0.0
	if ((x <= -1.75) || !(x <= 1.75))
		tmp = Float64(-0.3333333333333333 * Float64(x * Float64(Float64(3.0 - x) / y)));
	else
		tmp = Float64(Float64(1.0 - x) / y);
	end
	return tmp
end

MATLAB

function tmp_2 = code(x, y)
	tmp = 0.0;
	if ((x <= -1.75) || ~((x <= 1.75)))
		tmp = -0.3333333333333333 * (x * ((3.0 - x) / y));
	else
		tmp = (1.0 - x) / y;
	end
	tmp_2 = tmp;
end

Wolfram

code[x_, y_] := If[Or[LessEqual[x, -1.75], N[Not[LessEqual[x, 1.75]], $MachinePrecision]], N[(-0.3333333333333333 * N[(x * N[(N[(3.0 - x), $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(1.0 - x), $MachinePrecision] / y), $MachinePrecision]]

Derivation

1. Split input into 2 regimes

2. if x < -1.75 or 1.75 < x

   1. Initial program 86.8%

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

      1. *-commutative 86.8%

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

      2. associate-*r/ 99.7%

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

      3. associate-/r* 99.7%

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

      4. associate-/r* 99.7%

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

      5. div-sub 99.7%

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

      6. sub-neg 99.7%

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

      7. distribute-frac-neg 99.7%

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

      8. *-lft-identity 99.7%

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

      9. metadata-eval 99.7%

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

      10. times-frac 99.7%

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

      11. neg-mul-1 99.7%

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

      12. remove-double-neg 99.7%

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

      13. *-rgt-identity 99.7%

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

      14. times-frac 99.6%

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

      15. remove-double-neg 99.6%

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

      16. neg-mul-1 99.6%

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

      17. *-commutative 99.6%

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

      18. associate-/l* 99.6%

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

      19. metadata-eval 99.6%

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

      20. /-rgt-identity 99.6%

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

      21. distribute-rgt1-in 99.6%

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

      22. +-commutative 99.6%

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

      23. sub-neg 99.6%

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

      24. *-commutative 99.6%

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

   3. Simplified 99.6%

      \[\leadsto \color{blue}{\left(3 - x\right) \cdot \left(\left(1 - x\right) \cdot \frac{0.3333333333333333}{y}\right)} \]

   4. Taylor expanded in x around inf 95.9%

      \[\leadsto \left(3 - x\right) \cdot \color{blue}{\left(-0.3333333333333333 \cdot \frac{x}{y}\right)} \]
   5. Step-by-step derivation

      1. *-commutative 95.9%

         \[\leadsto \left(3 - x\right) \cdot \color{blue}{\left(\frac{x}{y} \cdot -0.3333333333333333\right)} \]

   6. Simplified 95.9%

      \[\leadsto \left(3 - x\right) \cdot \color{blue}{\left(\frac{x}{y} \cdot -0.3333333333333333\right)} \]

   7. Taylor expanded in x around 0 95.9%

      \[\leadsto \left(3 - x\right) \cdot \color{blue}{\left(-0.3333333333333333 \cdot \frac{x}{y}\right)} \]
   8. Step-by-step derivation

      1. associate-*r/ 95.9%

         \[\leadsto \left(3 - x\right) \cdot \color{blue}{\frac{-0.3333333333333333 \cdot x}{y}} \]

      2. *-commutative 95.9%

         \[\leadsto \left(3 - x\right) \cdot \frac{\color{blue}{x \cdot -0.3333333333333333}}{y} \]

   9. Simplified 95.9%

      \[\leadsto \left(3 - x\right) \cdot \color{blue}{\frac{x \cdot -0.3333333333333333}{y}} \]

   10. Taylor expanded in y around 0 83.1%

       \[\leadsto \color{blue}{-0.3333333333333333 \cdot \frac{\left(3 - x\right) \cdot x}{y}} \]
   11. Step-by-step derivation

       1. associate-/l* 96.0%

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

       2. associate-/r/ 95.9%

          \[\leadsto -0.3333333333333333 \cdot \color{blue}{\left(\frac{3 - x}{y} \cdot x\right)} \]

   12. Simplified 95.9%

       \[\leadsto \color{blue}{-0.3333333333333333 \cdot \left(\frac{3 - x}{y} \cdot x\right)} \]

   if -1.75 < x < 1.75

   1. Initial program 99.6%

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

      1. associate-/l* 99.8%

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

      2. *-commutative 99.8%

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

   3. Simplified 99.8%

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

   4. Taylor expanded in x around 0 98.9%

      \[\leadsto \frac{1 - x}{\color{blue}{y}} \]
3. Recombined 2 regimes into one program.

4. Final simplification 97.4%

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

Alternative 3: 98.2% accurate, 0.8× speedup

Math

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -2.3 \lor \neg \left(x \leq 1.3\right):\\ \;\;\;\;\frac{x}{y} \cdot \frac{x - 3}{3}\\ \mathbf{else}:\\ \;\;\;\;\frac{3 + x \cdot -4}{y \cdot 3}\\ \end{array} \end{array} \]

FPCore

(FPCore (x y)
 :precision binary64
 (if (or (<= x -2.3) (not (<= x 1.3)))
   (* (/ x y) (/ (- x 3.0) 3.0))
   (/ (+ 3.0 (* x -4.0)) (* y 3.0))))

C

double code(double x, double y) {
	double tmp;
	if ((x <= -2.3) || !(x <= 1.3)) {
		tmp = (x / y) * ((x - 3.0) / 3.0);
	} else {
		tmp = (3.0 + (x * -4.0)) / (y * 3.0);
	}
	return tmp;
}

Fortran

real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if ((x <= (-2.3d0)) .or. (.not. (x <= 1.3d0))) then
        tmp = (x / y) * ((x - 3.0d0) / 3.0d0)
    else
        tmp = (3.0d0 + (x * (-4.0d0))) / (y * 3.0d0)
    end if
    code = tmp
end function

Java

public static double code(double x, double y) {
	double tmp;
	if ((x <= -2.3) || !(x <= 1.3)) {
		tmp = (x / y) * ((x - 3.0) / 3.0);
	} else {
		tmp = (3.0 + (x * -4.0)) / (y * 3.0);
	}
	return tmp;
}

Python

def code(x, y):
	tmp = 0
	if (x <= -2.3) or not (x <= 1.3):
		tmp = (x / y) * ((x - 3.0) / 3.0)
	else:
		tmp = (3.0 + (x * -4.0)) / (y * 3.0)
	return tmp

Julia

function code(x, y)
	tmp = 0.0
	if ((x <= -2.3) || !(x <= 1.3))
		tmp = Float64(Float64(x / y) * Float64(Float64(x - 3.0) / 3.0));
	else
		tmp = Float64(Float64(3.0 + Float64(x * -4.0)) / Float64(y * 3.0));
	end
	return tmp
end

MATLAB

function tmp_2 = code(x, y)
	tmp = 0.0;
	if ((x <= -2.3) || ~((x <= 1.3)))
		tmp = (x / y) * ((x - 3.0) / 3.0);
	else
		tmp = (3.0 + (x * -4.0)) / (y * 3.0);
	end
	tmp_2 = tmp;
end

Wolfram

code[x_, y_] := If[Or[LessEqual[x, -2.3], N[Not[LessEqual[x, 1.3]], $MachinePrecision]], N[(N[(x / y), $MachinePrecision] * N[(N[(x - 3.0), $MachinePrecision] / 3.0), $MachinePrecision]), $MachinePrecision], N[(N[(3.0 + N[(x * -4.0), $MachinePrecision]), $MachinePrecision] / N[(y * 3.0), $MachinePrecision]), $MachinePrecision]]

Derivation

1. Split input into 2 regimes

2. if x < -2.2999999999999998 or 1.30000000000000004 < x

   1. Initial program 86.8%

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

      1. times-frac 99.7%

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

   3. Simplified 99.7%

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

   4. Taylor expanded in x around inf 96.0%

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

      1. neg-mul-1 14.5%

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

      2. distribute-neg-frac 14.5%

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

   6. Simplified 96.0%

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

   if -2.2999999999999998 < x < 1.30000000000000004

   1. Initial program 99.6%

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

   2. Taylor expanded in x around 0 99.2%

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

      1. *-commutative 99.2%

         \[\leadsto \frac{3 + \color{blue}{x \cdot -4}}{y \cdot 3} \]

   4. Simplified 99.2%

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

4. Final simplification 97.6%

   \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -2.3 \lor \neg \left(x \leq 1.3\right):\\ \;\;\;\;\frac{x}{y} \cdot \frac{x - 3}{3}\\ \mathbf{else}:\\ \;\;\;\;\frac{3 + x \cdot -4}{y \cdot 3}\\ \end{array} \]

Alternative 4: 97.8% accurate, 0.8× speedup

Math

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

FPCore

(FPCore (x y)
 :precision binary64
 (if (<= x -1.75)
   (* (- 3.0 x) (* (/ x y) -0.3333333333333333))
   (if (<= x 1.75)
     (/ (- 1.0 x) y)
     (* -0.3333333333333333 (* x (/ (- 3.0 x) y))))))

C

double code(double x, double y) {
	double tmp;
	if (x <= -1.75) {
		tmp = (3.0 - x) * ((x / y) * -0.3333333333333333);
	} else if (x <= 1.75) {
		tmp = (1.0 - x) / y;
	} else {
		tmp = -0.3333333333333333 * (x * ((3.0 - x) / y));
	}
	return tmp;
}

Fortran

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 = (3.0d0 - x) * ((x / y) * (-0.3333333333333333d0))
    else if (x <= 1.75d0) then
        tmp = (1.0d0 - x) / y
    else
        tmp = (-0.3333333333333333d0) * (x * ((3.0d0 - x) / y))
    end if
    code = tmp
end function

Java

public static double code(double x, double y) {
	double tmp;
	if (x <= -1.75) {
		tmp = (3.0 - x) * ((x / y) * -0.3333333333333333);
	} else if (x <= 1.75) {
		tmp = (1.0 - x) / y;
	} else {
		tmp = -0.3333333333333333 * (x * ((3.0 - x) / y));
	}
	return tmp;
}

Python

def code(x, y):
	tmp = 0
	if x <= -1.75:
		tmp = (3.0 - x) * ((x / y) * -0.3333333333333333)
	elif x <= 1.75:
		tmp = (1.0 - x) / y
	else:
		tmp = -0.3333333333333333 * (x * ((3.0 - x) / y))
	return tmp

Julia

function code(x, y)
	tmp = 0.0
	if (x <= -1.75)
		tmp = Float64(Float64(3.0 - x) * Float64(Float64(x / y) * -0.3333333333333333));
	elseif (x <= 1.75)
		tmp = Float64(Float64(1.0 - x) / y);
	else
		tmp = Float64(-0.3333333333333333 * Float64(x * Float64(Float64(3.0 - x) / y)));
	end
	return tmp
end

MATLAB

function tmp_2 = code(x, y)
	tmp = 0.0;
	if (x <= -1.75)
		tmp = (3.0 - x) * ((x / y) * -0.3333333333333333);
	elseif (x <= 1.75)
		tmp = (1.0 - x) / y;
	else
		tmp = -0.3333333333333333 * (x * ((3.0 - x) / y));
	end
	tmp_2 = tmp;
end

Wolfram

code[x_, y_] := If[LessEqual[x, -1.75], N[(N[(3.0 - x), $MachinePrecision] * N[(N[(x / y), $MachinePrecision] * -0.3333333333333333), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 1.75], N[(N[(1.0 - x), $MachinePrecision] / y), $MachinePrecision], N[(-0.3333333333333333 * N[(x * N[(N[(3.0 - x), $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]

Derivation

1. Split input into 3 regimes

2. if x < -1.75

   1. Initial program 85.4%

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

      1. *-commutative 85.4%

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

      2. associate-*r/ 99.7%

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

      3. associate-/r* 99.7%

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

      4. associate-/r* 99.7%

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

      5. div-sub 99.7%

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

      6. sub-neg 99.7%

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

      7. distribute-frac-neg 99.7%

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

      8. *-lft-identity 99.7%

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

      9. metadata-eval 99.7%

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

      10. times-frac 99.7%

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

      11. neg-mul-1 99.7%

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

      12. remove-double-neg 99.7%

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

      13. *-rgt-identity 99.7%

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

      14. times-frac 99.6%

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

      15. remove-double-neg 99.6%

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

      16. neg-mul-1 99.6%

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

      17. *-commutative 99.6%

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

      18. associate-/l* 99.6%

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

      19. metadata-eval 99.6%

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

      20. /-rgt-identity 99.6%

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

      21. distribute-rgt1-in 99.6%

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

      22. +-commutative 99.6%

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

      23. sub-neg 99.6%

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

      24. *-commutative 99.6%

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

   3. Simplified 99.7%

      \[\leadsto \color{blue}{\left(3 - x\right) \cdot \left(\left(1 - x\right) \cdot \frac{0.3333333333333333}{y}\right)} \]

   4. Taylor expanded in x around inf 96.2%

      \[\leadsto \left(3 - x\right) \cdot \color{blue}{\left(-0.3333333333333333 \cdot \frac{x}{y}\right)} \]
   5. Step-by-step derivation

      1. *-commutative 96.2%

         \[\leadsto \left(3 - x\right) \cdot \color{blue}{\left(\frac{x}{y} \cdot -0.3333333333333333\right)} \]

   6. Simplified 96.2%

      \[\leadsto \left(3 - x\right) \cdot \color{blue}{\left(\frac{x}{y} \cdot -0.3333333333333333\right)} \]

   if -1.75 < x < 1.75

   1. Initial program 99.6%

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

      1. associate-/l* 99.8%

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

      2. *-commutative 99.8%

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

   3. Simplified 99.8%

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

   4. Taylor expanded in x around 0 98.9%

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

   if 1.75 < x

   1. Initial program 88.4%

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

      1. *-commutative 88.4%

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

      2. associate-*r/ 99.7%

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

      3. associate-/r* 99.7%

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

      4. associate-/r* 99.7%

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

      5. div-sub 99.7%

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

      6. sub-neg 99.7%

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

      7. distribute-frac-neg 99.7%

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

      8. *-lft-identity 99.7%

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

      9. metadata-eval 99.7%

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

      10. times-frac 99.7%

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

      11. neg-mul-1 99.7%

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

      12. remove-double-neg 99.7%

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

      13. *-rgt-identity 99.7%

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

      14. times-frac 99.7%

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

      15. remove-double-neg 99.7%

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

      16. neg-mul-1 99.7%

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

      17. *-commutative 99.7%

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

      18. associate-/l* 99.7%

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

      19. metadata-eval 99.7%

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

      20. /-rgt-identity 99.7%

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

      21. distribute-rgt1-in 99.7%

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

      22. +-commutative 99.7%

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

      23. sub-neg 99.7%

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

      24. *-commutative 99.7%

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

   3. Simplified 99.6%

      \[\leadsto \color{blue}{\left(3 - x\right) \cdot \left(\left(1 - x\right) \cdot \frac{0.3333333333333333}{y}\right)} \]

   4. Taylor expanded in x around inf 95.6%

      \[\leadsto \left(3 - x\right) \cdot \color{blue}{\left(-0.3333333333333333 \cdot \frac{x}{y}\right)} \]
   5. Step-by-step derivation

      1. *-commutative 95.6%

         \[\leadsto \left(3 - x\right) \cdot \color{blue}{\left(\frac{x}{y} \cdot -0.3333333333333333\right)} \]

   6. Simplified 95.6%

      \[\leadsto \left(3 - x\right) \cdot \color{blue}{\left(\frac{x}{y} \cdot -0.3333333333333333\right)} \]

   7. Taylor expanded in x around 0 95.6%

      \[\leadsto \left(3 - x\right) \cdot \color{blue}{\left(-0.3333333333333333 \cdot \frac{x}{y}\right)} \]
   8. Step-by-step derivation

      1. associate-*r/ 95.7%

         \[\leadsto \left(3 - x\right) \cdot \color{blue}{\frac{-0.3333333333333333 \cdot x}{y}} \]

      2. *-commutative 95.7%

         \[\leadsto \left(3 - x\right) \cdot \frac{\color{blue}{x \cdot -0.3333333333333333}}{y} \]

   9. Simplified 95.7%

      \[\leadsto \left(3 - x\right) \cdot \color{blue}{\frac{x \cdot -0.3333333333333333}{y}} \]

   10. Taylor expanded in y around 0 84.5%

       \[\leadsto \color{blue}{-0.3333333333333333 \cdot \frac{\left(3 - x\right) \cdot x}{y}} \]
   11. Step-by-step derivation

       1. associate-/l* 95.8%

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

       2. associate-/r/ 95.7%

          \[\leadsto -0.3333333333333333 \cdot \color{blue}{\left(\frac{3 - x}{y} \cdot x\right)} \]

   12. Simplified 95.7%

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

4. Final simplification 97.5%

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

Alternative 5: 97.8% accurate, 0.8× speedup

Math

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

FPCore

(FPCore (x y)
 :precision binary64
 (if (<= x -1.75)
   (* (- 3.0 x) (* (/ x y) -0.3333333333333333))
   (if (<= x 1.75)
     (/ (- 1.0 x) y)
     (* (- 3.0 x) (/ (* x -0.3333333333333333) y)))))

C

double code(double x, double y) {
	double tmp;
	if (x <= -1.75) {
		tmp = (3.0 - x) * ((x / y) * -0.3333333333333333);
	} else if (x <= 1.75) {
		tmp = (1.0 - x) / y;
	} else {
		tmp = (3.0 - x) * ((x * -0.3333333333333333) / y);
	}
	return tmp;
}

Fortran

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 = (3.0d0 - x) * ((x / y) * (-0.3333333333333333d0))
    else if (x <= 1.75d0) then
        tmp = (1.0d0 - x) / y
    else
        tmp = (3.0d0 - x) * ((x * (-0.3333333333333333d0)) / y)
    end if
    code = tmp
end function

Java

public static double code(double x, double y) {
	double tmp;
	if (x <= -1.75) {
		tmp = (3.0 - x) * ((x / y) * -0.3333333333333333);
	} else if (x <= 1.75) {
		tmp = (1.0 - x) / y;
	} else {
		tmp = (3.0 - x) * ((x * -0.3333333333333333) / y);
	}
	return tmp;
}

Python

def code(x, y):
	tmp = 0
	if x <= -1.75:
		tmp = (3.0 - x) * ((x / y) * -0.3333333333333333)
	elif x <= 1.75:
		tmp = (1.0 - x) / y
	else:
		tmp = (3.0 - x) * ((x * -0.3333333333333333) / y)
	return tmp

Julia

function code(x, y)
	tmp = 0.0
	if (x <= -1.75)
		tmp = Float64(Float64(3.0 - x) * Float64(Float64(x / y) * -0.3333333333333333));
	elseif (x <= 1.75)
		tmp = Float64(Float64(1.0 - x) / y);
	else
		tmp = Float64(Float64(3.0 - x) * Float64(Float64(x * -0.3333333333333333) / y));
	end
	return tmp
end

MATLAB

function tmp_2 = code(x, y)
	tmp = 0.0;
	if (x <= -1.75)
		tmp = (3.0 - x) * ((x / y) * -0.3333333333333333);
	elseif (x <= 1.75)
		tmp = (1.0 - x) / y;
	else
		tmp = (3.0 - x) * ((x * -0.3333333333333333) / y);
	end
	tmp_2 = tmp;
end

Wolfram

code[x_, y_] := If[LessEqual[x, -1.75], N[(N[(3.0 - x), $MachinePrecision] * N[(N[(x / y), $MachinePrecision] * -0.3333333333333333), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 1.75], N[(N[(1.0 - x), $MachinePrecision] / y), $MachinePrecision], N[(N[(3.0 - x), $MachinePrecision] * N[(N[(x * -0.3333333333333333), $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]]]

Derivation

1. Split input into 3 regimes

2. if x < -1.75

   1. Initial program 85.4%

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

      1. *-commutative 85.4%

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

      2. associate-*r/ 99.7%

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

      3. associate-/r* 99.7%

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

      4. associate-/r* 99.7%

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

      5. div-sub 99.7%

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

      6. sub-neg 99.7%

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

      7. distribute-frac-neg 99.7%

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

      8. *-lft-identity 99.7%

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

      9. metadata-eval 99.7%

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

      10. times-frac 99.7%

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

      11. neg-mul-1 99.7%

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

      12. remove-double-neg 99.7%

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

      13. *-rgt-identity 99.7%

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

      14. times-frac 99.6%

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

      15. remove-double-neg 99.6%

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

      16. neg-mul-1 99.6%

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

      17. *-commutative 99.6%

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

      18. associate-/l* 99.6%

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

      19. metadata-eval 99.6%

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

      20. /-rgt-identity 99.6%

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

      21. distribute-rgt1-in 99.6%

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

      22. +-commutative 99.6%

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

      23. sub-neg 99.6%

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

      24. *-commutative 99.6%

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

   3. Simplified 99.7%

      \[\leadsto \color{blue}{\left(3 - x\right) \cdot \left(\left(1 - x\right) \cdot \frac{0.3333333333333333}{y}\right)} \]

   4. Taylor expanded in x around inf 96.2%

      \[\leadsto \left(3 - x\right) \cdot \color{blue}{\left(-0.3333333333333333 \cdot \frac{x}{y}\right)} \]
   5. Step-by-step derivation

      1. *-commutative 96.2%

         \[\leadsto \left(3 - x\right) \cdot \color{blue}{\left(\frac{x}{y} \cdot -0.3333333333333333\right)} \]

   6. Simplified 96.2%

      \[\leadsto \left(3 - x\right) \cdot \color{blue}{\left(\frac{x}{y} \cdot -0.3333333333333333\right)} \]

   if -1.75 < x < 1.75

   1. Initial program 99.6%

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

      1. associate-/l* 99.8%

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

      2. *-commutative 99.8%

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

   3. Simplified 99.8%

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

   4. Taylor expanded in x around 0 98.9%

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

   if 1.75 < x

   1. Initial program 88.4%

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

      1. *-commutative 88.4%

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

      2. associate-*r/ 99.7%

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

      3. associate-/r* 99.7%

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

      4. associate-/r* 99.7%

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

      5. div-sub 99.7%

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

      6. sub-neg 99.7%

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

      7. distribute-frac-neg 99.7%

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

      8. *-lft-identity 99.7%

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

      9. metadata-eval 99.7%

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

      10. times-frac 99.7%

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

      11. neg-mul-1 99.7%

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

      12. remove-double-neg 99.7%

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

      13. *-rgt-identity 99.7%

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

      14. times-frac 99.7%

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

      15. remove-double-neg 99.7%

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

      16. neg-mul-1 99.7%

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

      17. *-commutative 99.7%

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

      18. associate-/l* 99.7%

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

      19. metadata-eval 99.7%

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

      20. /-rgt-identity 99.7%

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

      21. distribute-rgt1-in 99.7%

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

      22. +-commutative 99.7%

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

      23. sub-neg 99.7%

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

      24. *-commutative 99.7%

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

   3. Simplified 99.6%

      \[\leadsto \color{blue}{\left(3 - x\right) \cdot \left(\left(1 - x\right) \cdot \frac{0.3333333333333333}{y}\right)} \]

   4. Taylor expanded in x around inf 95.6%

      \[\leadsto \left(3 - x\right) \cdot \color{blue}{\left(-0.3333333333333333 \cdot \frac{x}{y}\right)} \]
   5. Step-by-step derivation

      1. *-commutative 95.6%

         \[\leadsto \left(3 - x\right) \cdot \color{blue}{\left(\frac{x}{y} \cdot -0.3333333333333333\right)} \]

   6. Simplified 95.6%

      \[\leadsto \left(3 - x\right) \cdot \color{blue}{\left(\frac{x}{y} \cdot -0.3333333333333333\right)} \]

   7. Taylor expanded in x around 0 95.6%

      \[\leadsto \left(3 - x\right) \cdot \color{blue}{\left(-0.3333333333333333 \cdot \frac{x}{y}\right)} \]
   8. Step-by-step derivation

      1. associate-*r/ 95.7%

         \[\leadsto \left(3 - x\right) \cdot \color{blue}{\frac{-0.3333333333333333 \cdot x}{y}} \]

      2. *-commutative 95.7%

         \[\leadsto \left(3 - x\right) \cdot \frac{\color{blue}{x \cdot -0.3333333333333333}}{y} \]

   9. Simplified 95.7%

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

4. Final simplification 97.5%

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

Alternative 6: 98.1% accurate, 0.8× speedup

Math

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -2.3:\\ \;\;\;\;\left(3 - x\right) \cdot \left(\frac{x}{y} \cdot -0.3333333333333333\right)\\ \mathbf{elif}\;x \leq 1.3:\\ \;\;\;\;\frac{3 + x \cdot -4}{y \cdot 3}\\ \mathbf{else}:\\ \;\;\;\;\left(3 - x\right) \cdot \frac{x \cdot -0.3333333333333333}{y}\\ \end{array} \end{array} \]

FPCore

(FPCore (x y)
 :precision binary64
 (if (<= x -2.3)
   (* (- 3.0 x) (* (/ x y) -0.3333333333333333))
   (if (<= x 1.3)
     (/ (+ 3.0 (* x -4.0)) (* y 3.0))
     (* (- 3.0 x) (/ (* x -0.3333333333333333) y)))))

C

double code(double x, double y) {
	double tmp;
	if (x <= -2.3) {
		tmp = (3.0 - x) * ((x / y) * -0.3333333333333333);
	} else if (x <= 1.3) {
		tmp = (3.0 + (x * -4.0)) / (y * 3.0);
	} else {
		tmp = (3.0 - x) * ((x * -0.3333333333333333) / y);
	}
	return tmp;
}

Fortran

real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if (x <= (-2.3d0)) then
        tmp = (3.0d0 - x) * ((x / y) * (-0.3333333333333333d0))
    else if (x <= 1.3d0) then
        tmp = (3.0d0 + (x * (-4.0d0))) / (y * 3.0d0)
    else
        tmp = (3.0d0 - x) * ((x * (-0.3333333333333333d0)) / y)
    end if
    code = tmp
end function

Java

public static double code(double x, double y) {
	double tmp;
	if (x <= -2.3) {
		tmp = (3.0 - x) * ((x / y) * -0.3333333333333333);
	} else if (x <= 1.3) {
		tmp = (3.0 + (x * -4.0)) / (y * 3.0);
	} else {
		tmp = (3.0 - x) * ((x * -0.3333333333333333) / y);
	}
	return tmp;
}

Python

def code(x, y):
	tmp = 0
	if x <= -2.3:
		tmp = (3.0 - x) * ((x / y) * -0.3333333333333333)
	elif x <= 1.3:
		tmp = (3.0 + (x * -4.0)) / (y * 3.0)
	else:
		tmp = (3.0 - x) * ((x * -0.3333333333333333) / y)
	return tmp

Julia

function code(x, y)
	tmp = 0.0
	if (x <= -2.3)
		tmp = Float64(Float64(3.0 - x) * Float64(Float64(x / y) * -0.3333333333333333));
	elseif (x <= 1.3)
		tmp = Float64(Float64(3.0 + Float64(x * -4.0)) / Float64(y * 3.0));
	else
		tmp = Float64(Float64(3.0 - x) * Float64(Float64(x * -0.3333333333333333) / y));
	end
	return tmp
end

MATLAB

function tmp_2 = code(x, y)
	tmp = 0.0;
	if (x <= -2.3)
		tmp = (3.0 - x) * ((x / y) * -0.3333333333333333);
	elseif (x <= 1.3)
		tmp = (3.0 + (x * -4.0)) / (y * 3.0);
	else
		tmp = (3.0 - x) * ((x * -0.3333333333333333) / y);
	end
	tmp_2 = tmp;
end

Wolfram

code[x_, y_] := If[LessEqual[x, -2.3], N[(N[(3.0 - x), $MachinePrecision] * N[(N[(x / y), $MachinePrecision] * -0.3333333333333333), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 1.3], N[(N[(3.0 + N[(x * -4.0), $MachinePrecision]), $MachinePrecision] / N[(y * 3.0), $MachinePrecision]), $MachinePrecision], N[(N[(3.0 - x), $MachinePrecision] * N[(N[(x * -0.3333333333333333), $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]]]

Derivation

1. Split input into 3 regimes

2. if x < -2.2999999999999998

   1. Initial program 85.4%

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

      1. *-commutative 85.4%

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

      2. associate-*r/ 99.7%

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

      3. associate-/r* 99.7%

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

      4. associate-/r* 99.7%

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

      5. div-sub 99.7%

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

      6. sub-neg 99.7%

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

      7. distribute-frac-neg 99.7%

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

      8. *-lft-identity 99.7%

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

      9. metadata-eval 99.7%

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

      10. times-frac 99.7%

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

      11. neg-mul-1 99.7%

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

      12. remove-double-neg 99.7%

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

      13. *-rgt-identity 99.7%

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

      14. times-frac 99.6%

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

      15. remove-double-neg 99.6%

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

      16. neg-mul-1 99.6%

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

      17. *-commutative 99.6%

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

      18. associate-/l* 99.6%

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

      19. metadata-eval 99.6%

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

      20. /-rgt-identity 99.6%

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

      21. distribute-rgt1-in 99.6%

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

      22. +-commutative 99.6%

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

      23. sub-neg 99.6%

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

      24. *-commutative 99.6%

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

   3. Simplified 99.7%

      \[\leadsto \color{blue}{\left(3 - x\right) \cdot \left(\left(1 - x\right) \cdot \frac{0.3333333333333333}{y}\right)} \]

   4. Taylor expanded in x around inf 96.2%

      \[\leadsto \left(3 - x\right) \cdot \color{blue}{\left(-0.3333333333333333 \cdot \frac{x}{y}\right)} \]
   5. Step-by-step derivation

      1. *-commutative 96.2%

         \[\leadsto \left(3 - x\right) \cdot \color{blue}{\left(\frac{x}{y} \cdot -0.3333333333333333\right)} \]

   6. Simplified 96.2%

      \[\leadsto \left(3 - x\right) \cdot \color{blue}{\left(\frac{x}{y} \cdot -0.3333333333333333\right)} \]

   if -2.2999999999999998 < x < 1.30000000000000004

   1. Initial program 99.6%

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

   2. Taylor expanded in x around 0 99.2%

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

      1. *-commutative 99.2%

         \[\leadsto \frac{3 + \color{blue}{x \cdot -4}}{y \cdot 3} \]

   4. Simplified 99.2%

      \[\leadsto \frac{\color{blue}{3 + x \cdot -4}}{y \cdot 3} \]

   if 1.30000000000000004 < x

   1. Initial program 88.4%

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

      1. *-commutative 88.4%

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

      2. associate-*r/ 99.7%

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

      3. associate-/r* 99.7%

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

      4. associate-/r* 99.7%

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

      5. div-sub 99.7%

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

      6. sub-neg 99.7%

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

      7. distribute-frac-neg 99.7%

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

      8. *-lft-identity 99.7%

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

      9. metadata-eval 99.7%

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

      10. times-frac 99.7%

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

      11. neg-mul-1 99.7%

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

      12. remove-double-neg 99.7%

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

      13. *-rgt-identity 99.7%

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

      14. times-frac 99.7%

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

      15. remove-double-neg 99.7%

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

      16. neg-mul-1 99.7%

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

      17. *-commutative 99.7%

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

      18. associate-/l* 99.7%

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

      19. metadata-eval 99.7%

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

      20. /-rgt-identity 99.7%

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

      21. distribute-rgt1-in 99.7%

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

      22. +-commutative 99.7%

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

      23. sub-neg 99.7%

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

      24. *-commutative 99.7%

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

   3. Simplified 99.6%

      \[\leadsto \color{blue}{\left(3 - x\right) \cdot \left(\left(1 - x\right) \cdot \frac{0.3333333333333333}{y}\right)} \]

   4. Taylor expanded in x around inf 95.6%

      \[\leadsto \left(3 - x\right) \cdot \color{blue}{\left(-0.3333333333333333 \cdot \frac{x}{y}\right)} \]
   5. Step-by-step derivation

      1. *-commutative 95.6%

         \[\leadsto \left(3 - x\right) \cdot \color{blue}{\left(\frac{x}{y} \cdot -0.3333333333333333\right)} \]

   6. Simplified 95.6%

      \[\leadsto \left(3 - x\right) \cdot \color{blue}{\left(\frac{x}{y} \cdot -0.3333333333333333\right)} \]

   7. Taylor expanded in x around 0 95.6%

      \[\leadsto \left(3 - x\right) \cdot \color{blue}{\left(-0.3333333333333333 \cdot \frac{x}{y}\right)} \]
   8. Step-by-step derivation

      1. associate-*r/ 95.7%

         \[\leadsto \left(3 - x\right) \cdot \color{blue}{\frac{-0.3333333333333333 \cdot x}{y}} \]

      2. *-commutative 95.7%

         \[\leadsto \left(3 - x\right) \cdot \frac{\color{blue}{x \cdot -0.3333333333333333}}{y} \]

   9. Simplified 95.7%

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

4. Final simplification 97.6%

   \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -2.3:\\ \;\;\;\;\left(3 - x\right) \cdot \left(\frac{x}{y} \cdot -0.3333333333333333\right)\\ \mathbf{elif}\;x \leq 1.3:\\ \;\;\;\;\frac{3 + x \cdot -4}{y \cdot 3}\\ \mathbf{else}:\\ \;\;\;\;\left(3 - x\right) \cdot \frac{x \cdot -0.3333333333333333}{y}\\ \end{array} \]

Alternative 7: 92.6% accurate, 1.0× speedup

Math

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -3.8 \lor \neg \left(x \leq 0.72\right):\\ \;\;\;\;0.3333333333333333 \cdot \frac{x \cdot x}{y}\\ \mathbf{else}:\\ \;\;\;\;\frac{1 - x}{y}\\ \end{array} \end{array} \]

FPCore

(FPCore (x y)
 :precision binary64
 (if (or (<= x -3.8) (not (<= x 0.72)))
   (* 0.3333333333333333 (/ (* x x) y))
   (/ (- 1.0 x) y)))

C

double code(double x, double y) {
	double tmp;
	if ((x <= -3.8) || !(x <= 0.72)) {
		tmp = 0.3333333333333333 * ((x * x) / y);
	} else {
		tmp = (1.0 - x) / y;
	}
	return tmp;
}

Fortran

real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if ((x <= (-3.8d0)) .or. (.not. (x <= 0.72d0))) then
        tmp = 0.3333333333333333d0 * ((x * x) / y)
    else
        tmp = (1.0d0 - x) / y
    end if
    code = tmp
end function

Java

public static double code(double x, double y) {
	double tmp;
	if ((x <= -3.8) || !(x <= 0.72)) {
		tmp = 0.3333333333333333 * ((x * x) / y);
	} else {
		tmp = (1.0 - x) / y;
	}
	return tmp;
}

Python

def code(x, y):
	tmp = 0
	if (x <= -3.8) or not (x <= 0.72):
		tmp = 0.3333333333333333 * ((x * x) / y)
	else:
		tmp = (1.0 - x) / y
	return tmp

Julia

function code(x, y)
	tmp = 0.0
	if ((x <= -3.8) || !(x <= 0.72))
		tmp = Float64(0.3333333333333333 * Float64(Float64(x * x) / y));
	else
		tmp = Float64(Float64(1.0 - x) / y);
	end
	return tmp
end

MATLAB

function tmp_2 = code(x, y)
	tmp = 0.0;
	if ((x <= -3.8) || ~((x <= 0.72)))
		tmp = 0.3333333333333333 * ((x * x) / y);
	else
		tmp = (1.0 - x) / y;
	end
	tmp_2 = tmp;
end

Wolfram

code[x_, y_] := If[Or[LessEqual[x, -3.8], N[Not[LessEqual[x, 0.72]], $MachinePrecision]], N[(0.3333333333333333 * N[(N[(x * x), $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision], N[(N[(1.0 - x), $MachinePrecision] / y), $MachinePrecision]]

Derivation

1. Split input into 2 regimes

2. if x < -3.7999999999999998 or 0.71999999999999997 < x

   1. Initial program 86.8%

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

      1. *-commutative 86.8%

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

      2. associate-*r/ 99.7%

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

      3. associate-/r* 99.7%

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

      4. associate-/r* 99.7%

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

      5. div-sub 99.7%

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

      6. sub-neg 99.7%

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

      7. distribute-frac-neg 99.7%

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

      8. *-lft-identity 99.7%

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

      9. metadata-eval 99.7%

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

      10. times-frac 99.7%

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

      11. neg-mul-1 99.7%

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

      12. remove-double-neg 99.7%

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

      13. *-rgt-identity 99.7%

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

      14. times-frac 99.6%

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

      15. remove-double-neg 99.6%

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

      16. neg-mul-1 99.6%

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

      17. *-commutative 99.6%

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

      18. associate-/l* 99.6%

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

      19. metadata-eval 99.6%

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

      20. /-rgt-identity 99.6%

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

      21. distribute-rgt1-in 99.6%

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

      22. +-commutative 99.6%

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

      23. sub-neg 99.6%

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

      24. *-commutative 99.6%

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

   3. Simplified 99.6%

      \[\leadsto \color{blue}{\left(3 - x\right) \cdot \left(\left(1 - x\right) \cdot \frac{0.3333333333333333}{y}\right)} \]

   4. Taylor expanded in x around inf 82.8%

      \[\leadsto \color{blue}{0.3333333333333333 \cdot \frac{{x}^{2}}{y}} \]
   5. Step-by-step derivation

      1. unpow2 82.8%

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

   6. Simplified 82.8%

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

   if -3.7999999999999998 < x < 0.71999999999999997

   1. Initial program 99.6%

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

      1. associate-/l* 99.8%

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

      2. *-commutative 99.8%

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

   3. Simplified 99.8%

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

   4. Taylor expanded in x around 0 98.9%

      \[\leadsto \frac{1 - x}{\color{blue}{y}} \]
3. Recombined 2 regimes into one program.

4. Final simplification 91.1%

   \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -3.8 \lor \neg \left(x \leq 0.72\right):\\ \;\;\;\;0.3333333333333333 \cdot \frac{x \cdot x}{y}\\ \mathbf{else}:\\ \;\;\;\;\frac{1 - x}{y}\\ \end{array} \]

Alternative 8: 97.8% accurate, 1.0× speedup

Math

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -3.8 \lor \neg \left(x \leq 0.72\right):\\ \;\;\;\;x \cdot \frac{0.3333333333333333}{\frac{y}{x}}\\ \mathbf{else}:\\ \;\;\;\;\frac{1 - x}{y}\\ \end{array} \end{array} \]

FPCore

(FPCore (x y)
 :precision binary64
 (if (or (<= x -3.8) (not (<= x 0.72)))
   (* x (/ 0.3333333333333333 (/ y x)))
   (/ (- 1.0 x) y)))

C

double code(double x, double y) {
	double tmp;
	if ((x <= -3.8) || !(x <= 0.72)) {
		tmp = x * (0.3333333333333333 / (y / x));
	} else {
		tmp = (1.0 - x) / y;
	}
	return tmp;
}

Fortran

real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if ((x <= (-3.8d0)) .or. (.not. (x <= 0.72d0))) then
        tmp = x * (0.3333333333333333d0 / (y / x))
    else
        tmp = (1.0d0 - x) / y
    end if
    code = tmp
end function

Java

public static double code(double x, double y) {
	double tmp;
	if ((x <= -3.8) || !(x <= 0.72)) {
		tmp = x * (0.3333333333333333 / (y / x));
	} else {
		tmp = (1.0 - x) / y;
	}
	return tmp;
}

Python

def code(x, y):
	tmp = 0
	if (x <= -3.8) or not (x <= 0.72):
		tmp = x * (0.3333333333333333 / (y / x))
	else:
		tmp = (1.0 - x) / y
	return tmp

Julia

function code(x, y)
	tmp = 0.0
	if ((x <= -3.8) || !(x <= 0.72))
		tmp = Float64(x * Float64(0.3333333333333333 / Float64(y / x)));
	else
		tmp = Float64(Float64(1.0 - x) / y);
	end
	return tmp
end

MATLAB

function tmp_2 = code(x, y)
	tmp = 0.0;
	if ((x <= -3.8) || ~((x <= 0.72)))
		tmp = x * (0.3333333333333333 / (y / x));
	else
		tmp = (1.0 - x) / y;
	end
	tmp_2 = tmp;
end

Wolfram

code[x_, y_] := If[Or[LessEqual[x, -3.8], N[Not[LessEqual[x, 0.72]], $MachinePrecision]], N[(x * N[(0.3333333333333333 / N[(y / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(1.0 - x), $MachinePrecision] / y), $MachinePrecision]]

Derivation

1. Split input into 2 regimes

2. if x < -3.7999999999999998 or 0.71999999999999997 < x

   1. Initial program 86.8%

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

      1. *-commutative 86.8%

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

      2. associate-*r/ 99.7%

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

      3. associate-/r* 99.7%

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

      4. associate-/r* 99.7%

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

      5. div-sub 99.7%

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

      6. sub-neg 99.7%

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

      7. distribute-frac-neg 99.7%

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

      8. *-lft-identity 99.7%

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

      9. metadata-eval 99.7%

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

      10. times-frac 99.7%

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

      11. neg-mul-1 99.7%

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

      12. remove-double-neg 99.7%

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

      13. *-rgt-identity 99.7%

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

      14. times-frac 99.6%

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

      15. remove-double-neg 99.6%

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

      16. neg-mul-1 99.6%

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

      17. *-commutative 99.6%

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

      18. associate-/l* 99.6%

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

      19. metadata-eval 99.6%

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

      20. /-rgt-identity 99.6%

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

      21. distribute-rgt1-in 99.6%

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

      22. +-commutative 99.6%

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

      23. sub-neg 99.6%

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

      24. *-commutative 99.6%

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

   3. Simplified 99.6%

      \[\leadsto \color{blue}{\left(3 - x\right) \cdot \left(\left(1 - x\right) \cdot \frac{0.3333333333333333}{y}\right)} \]
   4. Step-by-step derivation

      1. associate-*r* 86.8%

         \[\leadsto \color{blue}{\left(\left(3 - x\right) \cdot \left(1 - x\right)\right) \cdot \frac{0.3333333333333333}{y}} \]

      2. *-commutative 86.8%

         \[\leadsto \color{blue}{\left(\left(1 - x\right) \cdot \left(3 - x\right)\right)} \cdot \frac{0.3333333333333333}{y} \]

      3. associate-*r/ 86.8%

         \[\leadsto \color{blue}{\frac{\left(\left(1 - x\right) \cdot \left(3 - x\right)\right) \cdot 0.3333333333333333}{y}} \]

      4. associate-*r* 86.8%

         \[\leadsto \frac{\color{blue}{\left(1 - x\right) \cdot \left(\left(3 - x\right) \cdot 0.3333333333333333\right)}}{y} \]

      5. metadata-eval 86.8%

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

      6. div-inv 86.9%

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

      7. associate-*l/ 99.7%

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

      8. associate-*r/ 99.7%

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

      9. clear-num 99.7%

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

      10. associate-*l/ 99.7%

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

      11. *-un-lft-identity 99.7%

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

   5. Applied egg-rr 99.7%

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

   6. Taylor expanded in x around inf 82.8%

      \[\leadsto \color{blue}{0.3333333333333333 \cdot \frac{{x}^{2}}{y}} \]
   7. Step-by-step derivation

      1. unpow2 82.8%

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

      2. associate-/l* 95.7%

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

      3. associate-*r/ 95.7%

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

      4. *-commutative 95.7%

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

      5. associate-*r/ 95.7%

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

   8. Simplified 95.7%

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

   if -3.7999999999999998 < x < 0.71999999999999997

   1. Initial program 99.6%

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

      1. associate-/l* 99.8%

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

      2. *-commutative 99.8%

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

   3. Simplified 99.8%

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

   4. Taylor expanded in x around 0 98.9%

      \[\leadsto \frac{1 - x}{\color{blue}{y}} \]
3. Recombined 2 regimes into one program.

4. Final simplification 97.3%

   \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -3.8 \lor \neg \left(x \leq 0.72\right):\\ \;\;\;\;x \cdot \frac{0.3333333333333333}{\frac{y}{x}}\\ \mathbf{else}:\\ \;\;\;\;\frac{1 - x}{y}\\ \end{array} \]

Alternative 9: 97.8% accurate, 1.0× speedup

Math

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -3.8:\\ \;\;\;\;\frac{x}{3 \cdot \frac{y}{x}}\\ \mathbf{elif}\;x \leq 0.72:\\ \;\;\;\;\frac{1 - x}{y}\\ \mathbf{else}:\\ \;\;\;\;x \cdot \frac{0.3333333333333333}{\frac{y}{x}}\\ \end{array} \end{array} \]

FPCore

(FPCore (x y)
 :precision binary64
 (if (<= x -3.8)
   (/ x (* 3.0 (/ y x)))
   (if (<= x 0.72) (/ (- 1.0 x) y) (* x (/ 0.3333333333333333 (/ y x))))))

C

double code(double x, double y) {
	double tmp;
	if (x <= -3.8) {
		tmp = x / (3.0 * (y / x));
	} else if (x <= 0.72) {
		tmp = (1.0 - x) / y;
	} else {
		tmp = x * (0.3333333333333333 / (y / x));
	}
	return tmp;
}

Fortran

real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if (x <= (-3.8d0)) then
        tmp = x / (3.0d0 * (y / x))
    else if (x <= 0.72d0) then
        tmp = (1.0d0 - x) / y
    else
        tmp = x * (0.3333333333333333d0 / (y / x))
    end if
    code = tmp
end function

Java

public static double code(double x, double y) {
	double tmp;
	if (x <= -3.8) {
		tmp = x / (3.0 * (y / x));
	} else if (x <= 0.72) {
		tmp = (1.0 - x) / y;
	} else {
		tmp = x * (0.3333333333333333 / (y / x));
	}
	return tmp;
}

Python

def code(x, y):
	tmp = 0
	if x <= -3.8:
		tmp = x / (3.0 * (y / x))
	elif x <= 0.72:
		tmp = (1.0 - x) / y
	else:
		tmp = x * (0.3333333333333333 / (y / x))
	return tmp

Julia

function code(x, y)
	tmp = 0.0
	if (x <= -3.8)
		tmp = Float64(x / Float64(3.0 * Float64(y / x)));
	elseif (x <= 0.72)
		tmp = Float64(Float64(1.0 - x) / y);
	else
		tmp = Float64(x * Float64(0.3333333333333333 / Float64(y / x)));
	end
	return tmp
end

MATLAB

function tmp_2 = code(x, y)
	tmp = 0.0;
	if (x <= -3.8)
		tmp = x / (3.0 * (y / x));
	elseif (x <= 0.72)
		tmp = (1.0 - x) / y;
	else
		tmp = x * (0.3333333333333333 / (y / x));
	end
	tmp_2 = tmp;
end

Wolfram

code[x_, y_] := If[LessEqual[x, -3.8], N[(x / N[(3.0 * N[(y / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 0.72], N[(N[(1.0 - x), $MachinePrecision] / y), $MachinePrecision], N[(x * N[(0.3333333333333333 / N[(y / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]

Derivation

1. Split input into 3 regimes

2. if x < -3.7999999999999998

   1. Initial program 85.4%

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

      1. *-commutative 85.4%

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

      2. associate-*r/ 99.7%

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

      3. associate-/r* 99.7%

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

      4. associate-/r* 99.7%

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

      5. div-sub 99.7%

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

      6. sub-neg 99.7%

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

      7. distribute-frac-neg 99.7%

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

      8. *-lft-identity 99.7%

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

      9. metadata-eval 99.7%

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

      10. times-frac 99.7%

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

      11. neg-mul-1 99.7%

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

      12. remove-double-neg 99.7%

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

      13. *-rgt-identity 99.7%

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

      14. times-frac 99.6%

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

      15. remove-double-neg 99.6%

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

      16. neg-mul-1 99.6%

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

      17. *-commutative 99.6%

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

      18. associate-/l* 99.6%

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

      19. metadata-eval 99.6%

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

      20. /-rgt-identity 99.6%

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

      21. distribute-rgt1-in 99.6%

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

      22. +-commutative 99.6%

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

      23. sub-neg 99.6%

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

      24. *-commutative 99.6%

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

   3. Simplified 99.7%

      \[\leadsto \color{blue}{\left(3 - x\right) \cdot \left(\left(1 - x\right) \cdot \frac{0.3333333333333333}{y}\right)} \]
   4. Step-by-step derivation

      1. associate-*r* 85.3%

         \[\leadsto \color{blue}{\left(\left(3 - x\right) \cdot \left(1 - x\right)\right) \cdot \frac{0.3333333333333333}{y}} \]

      2. *-commutative 85.3%

         \[\leadsto \color{blue}{\left(\left(1 - x\right) \cdot \left(3 - x\right)\right)} \cdot \frac{0.3333333333333333}{y} \]

      3. associate-*r/ 85.3%

         \[\leadsto \color{blue}{\frac{\left(\left(1 - x\right) \cdot \left(3 - x\right)\right) \cdot 0.3333333333333333}{y}} \]

      4. associate-*r* 85.4%

         \[\leadsto \frac{\color{blue}{\left(1 - x\right) \cdot \left(\left(3 - x\right) \cdot 0.3333333333333333\right)}}{y} \]

      5. metadata-eval 85.4%

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

      6. div-inv 85.4%

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

      7. associate-*l/ 99.7%

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

      8. associate-*r/ 99.7%

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

      9. clear-num 99.7%

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

      10. associate-*l/ 99.7%

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

      11. *-un-lft-identity 99.7%

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

   5. Applied egg-rr 99.7%

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

   6. Taylor expanded in x around inf 81.5%

      \[\leadsto \color{blue}{0.3333333333333333 \cdot \frac{{x}^{2}}{y}} \]
   7. Step-by-step derivation

      1. unpow2 81.5%

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

      2. associate-/l* 95.9%

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

      3. associate-*r/ 95.9%

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

      4. *-commutative 95.9%

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

      5. associate-*r/ 96.0%

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

   8. Simplified 96.0%

      \[\leadsto \color{blue}{x \cdot \frac{0.3333333333333333}{\frac{y}{x}}} \]
   9. Step-by-step derivation

      1. clear-num 95.8%

         \[\leadsto x \cdot \color{blue}{\frac{1}{\frac{\frac{y}{x}}{0.3333333333333333}}} \]

      2. un-div-inv 96.0%

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

      3. associate-/l/ 95.8%

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

      4. *-un-lft-identity 95.8%

         \[\leadsto \frac{x}{\frac{\color{blue}{1 \cdot y}}{0.3333333333333333 \cdot x}} \]

      5. times-frac 96.0%

         \[\leadsto \frac{x}{\color{blue}{\frac{1}{0.3333333333333333} \cdot \frac{y}{x}}} \]

      6. metadata-eval 96.0%

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

   10. Applied egg-rr 96.0%

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

   if -3.7999999999999998 < x < 0.71999999999999997

   1. Initial program 99.6%

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

      1. associate-/l* 99.8%

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

      2. *-commutative 99.8%

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

   3. Simplified 99.8%

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

   4. Taylor expanded in x around 0 98.9%

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

   if 0.71999999999999997 < x

   1. Initial program 88.4%

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

      1. *-commutative 88.4%

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

      2. associate-*r/ 99.7%

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

      3. associate-/r* 99.7%

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

      4. associate-/r* 99.7%

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

      5. div-sub 99.7%

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

      6. sub-neg 99.7%

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

      7. distribute-frac-neg 99.7%

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

      8. *-lft-identity 99.7%

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

      9. metadata-eval 99.7%

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

      10. times-frac 99.7%

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

      11. neg-mul-1 99.7%

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

      12. remove-double-neg 99.7%

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

      13. *-rgt-identity 99.7%

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

      14. times-frac 99.7%

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

      15. remove-double-neg 99.7%

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

      16. neg-mul-1 99.7%

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

      17. *-commutative 99.7%

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

      18. associate-/l* 99.7%

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

      19. metadata-eval 99.7%

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

      20. /-rgt-identity 99.7%

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

      21. distribute-rgt1-in 99.7%

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

      22. +-commutative 99.7%

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

      23. sub-neg 99.7%

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

      24. *-commutative 99.7%

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

   3. Simplified 99.6%

      \[\leadsto \color{blue}{\left(3 - x\right) \cdot \left(\left(1 - x\right) \cdot \frac{0.3333333333333333}{y}\right)} \]
   4. Step-by-step derivation

      1. associate-*r* 88.4%

         \[\leadsto \color{blue}{\left(\left(3 - x\right) \cdot \left(1 - x\right)\right) \cdot \frac{0.3333333333333333}{y}} \]

      2. *-commutative 88.4%

         \[\leadsto \color{blue}{\left(\left(1 - x\right) \cdot \left(3 - x\right)\right)} \cdot \frac{0.3333333333333333}{y} \]

      3. associate-*r/ 88.4%

         \[\leadsto \color{blue}{\frac{\left(\left(1 - x\right) \cdot \left(3 - x\right)\right) \cdot 0.3333333333333333}{y}} \]

      4. associate-*r* 88.4%

         \[\leadsto \frac{\color{blue}{\left(1 - x\right) \cdot \left(\left(3 - x\right) \cdot 0.3333333333333333\right)}}{y} \]

      5. metadata-eval 88.4%

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

      6. div-inv 88.5%

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

      7. associate-*l/ 99.8%

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

      8. associate-*r/ 99.7%

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

      9. clear-num 99.7%

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

      10. associate-*l/ 99.7%

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

      11. *-un-lft-identity 99.7%

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

   5. Applied egg-rr 99.7%

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

   6. Taylor expanded in x around inf 84.3%

      \[\leadsto \color{blue}{0.3333333333333333 \cdot \frac{{x}^{2}}{y}} \]
   7. Step-by-step derivation

      1. unpow2 84.3%

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

      2. associate-/l* 95.5%

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

      3. associate-*r/ 95.5%

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

      4. *-commutative 95.5%

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

      5. associate-*r/ 95.5%

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

   8. Simplified 95.5%

      \[\leadsto \color{blue}{x \cdot \frac{0.3333333333333333}{\frac{y}{x}}} \]
3. Recombined 3 regimes into one program.

4. Final simplification 97.4%

   \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -3.8:\\ \;\;\;\;\frac{x}{3 \cdot \frac{y}{x}}\\ \mathbf{elif}\;x \leq 0.72:\\ \;\;\;\;\frac{1 - x}{y}\\ \mathbf{else}:\\ \;\;\;\;x \cdot \frac{0.3333333333333333}{\frac{y}{x}}\\ \end{array} \]

Alternative 10: 99.5% accurate, 1.0× speedup

Math

\[\begin{array}{l} \\ \left(x - 3\right) \cdot \left(\frac{0.3333333333333333}{y} \cdot \left(x + -1\right)\right) \end{array} \]

FPCore

(FPCore (x y)
 :precision binary64
 (* (- x 3.0) (* (/ 0.3333333333333333 y) (+ x -1.0))))

C

double code(double x, double y) {
	return (x - 3.0) * ((0.3333333333333333 / y) * (x + -1.0));
}

Fortran

real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = (x - 3.0d0) * ((0.3333333333333333d0 / y) * (x + (-1.0d0)))
end function

Java

public static double code(double x, double y) {
	return (x - 3.0) * ((0.3333333333333333 / y) * (x + -1.0));
}

Python

def code(x, y):
	return (x - 3.0) * ((0.3333333333333333 / y) * (x + -1.0))

Julia

function code(x, y)
	return Float64(Float64(x - 3.0) * Float64(Float64(0.3333333333333333 / y) * Float64(x + -1.0)))
end

MATLAB

function tmp = code(x, y)
	tmp = (x - 3.0) * ((0.3333333333333333 / y) * (x + -1.0));
end

Wolfram

code[x_, y_] := N[(N[(x - 3.0), $MachinePrecision] * N[(N[(0.3333333333333333 / y), $MachinePrecision] * N[(x + -1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]

Derivation

1. Initial program 93.4%

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

   1. *-commutative 93.4%

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

   2. associate-*r/ 99.5%

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

   3. associate-/r* 99.7%

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

   4. associate-/r* 99.5%

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

   5. div-sub 99.5%

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

   6. sub-neg 99.5%

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

   7. distribute-frac-neg 99.5%

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

   8. *-lft-identity 99.5%

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

   9. metadata-eval 99.5%

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

   10. times-frac 99.5%

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

   11. neg-mul-1 99.5%

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

   12. remove-double-neg 99.5%

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

   13. *-rgt-identity 99.5%

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

   14. times-frac 99.5%

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

   15. remove-double-neg 99.5%

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

   16. neg-mul-1 99.5%

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

   17. *-commutative 99.5%

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

   18. associate-/l* 99.5%

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

   19. metadata-eval 99.5%

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

   20. /-rgt-identity 99.5%

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

   21. distribute-rgt1-in 99.5%

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

   22. +-commutative 99.5%

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

   23. sub-neg 99.5%

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

   24. *-commutative 99.5%

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

3. Simplified 99.5%

   \[\leadsto \color{blue}{\left(3 - x\right) \cdot \left(\left(1 - x\right) \cdot \frac{0.3333333333333333}{y}\right)} \]

4. Final simplification 99.5%

   \[\leadsto \left(x - 3\right) \cdot \left(\frac{0.3333333333333333}{y} \cdot \left(x + -1\right)\right) \]

Alternative 11: 57.8% accurate, 1.6× speedup

Math

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

FPCore

(FPCore (x y)
 :precision binary64
 (if (<= x -0.75) (* (/ x y) -1.3333333333333333) (/ 1.0 y)))

C

double code(double x, double y) {
	double tmp;
	if (x <= -0.75) {
		tmp = (x / y) * -1.3333333333333333;
	} else {
		tmp = 1.0 / y;
	}
	return tmp;
}

Fortran

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

Java

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;
}

Python

def code(x, y):
	tmp = 0
	if x <= -0.75:
		tmp = (x / y) * -1.3333333333333333
	else:
		tmp = 1.0 / y
	return tmp

Julia

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

MATLAB

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

Wolfram

code[x_, y_] := If[LessEqual[x, -0.75], N[(N[(x / y), $MachinePrecision] * -1.3333333333333333), $MachinePrecision], N[(1.0 / y), $MachinePrecision]]

Derivation

1. Split input into 2 regimes

2. if x < -0.75

   1. Initial program 85.4%

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

   2. Taylor expanded in x around 0 27.0%

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

      1. *-commutative 27.0%

         \[\leadsto \frac{3 + \color{blue}{x \cdot -4}}{y \cdot 3} \]

   4. Simplified 27.0%

      \[\leadsto \frac{\color{blue}{3 + x \cdot -4}}{y \cdot 3} \]

   5. Taylor expanded in x around inf 27.0%

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

   if -0.75 < x

   1. Initial program 96.1%

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

      1. *-commutative 96.1%

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

      2. associate-*r/ 99.5%

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

      3. associate-/r* 99.7%

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

      4. associate-/r* 99.5%

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

      5. div-sub 99.5%

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

      6. sub-neg 99.5%

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

      7. distribute-frac-neg 99.5%

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

      8. *-lft-identity 99.5%

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

      9. metadata-eval 99.5%

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

      10. times-frac 99.5%

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

      11. neg-mul-1 99.5%

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

      12. remove-double-neg 99.5%

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

      13. *-rgt-identity 99.5%

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

      14. times-frac 99.5%

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

      15. remove-double-neg 99.5%

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

      16. neg-mul-1 99.5%

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

      17. *-commutative 99.5%

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

      18. associate-/l* 99.5%

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

      19. metadata-eval 99.5%

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

      20. /-rgt-identity 99.5%

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

      21. distribute-rgt1-in 99.5%

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

      22. +-commutative 99.5%

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

      23. sub-neg 99.5%

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

      24. *-commutative 99.5%

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

   3. Simplified 99.5%

      \[\leadsto \color{blue}{\left(3 - x\right) \cdot \left(\left(1 - x\right) \cdot \frac{0.3333333333333333}{y}\right)} \]

   4. Taylor expanded in x around 0 69.8%

      \[\leadsto \color{blue}{\frac{1}{y}} \]
3. Recombined 2 regimes into one program.

4. Final simplification 58.9%

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

Alternative 12: 57.8% accurate, 1.8× speedup

Math

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

FPCore

(FPCore (x y) :precision binary64 (if (<= x -1.0) (/ (- x) y) (/ 1.0 y)))

C

double code(double x, double y) {
	double tmp;
	if (x <= -1.0) {
		tmp = -x / y;
	} else {
		tmp = 1.0 / y;
	}
	return tmp;
}

Fortran

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

Java

public static double code(double x, double y) {
	double tmp;
	if (x <= -1.0) {
		tmp = -x / y;
	} else {
		tmp = 1.0 / y;
	}
	return tmp;
}

Python

def code(x, y):
	tmp = 0
	if x <= -1.0:
		tmp = -x / y
	else:
		tmp = 1.0 / y
	return tmp

Julia

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

MATLAB

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

Wolfram

code[x_, y_] := If[LessEqual[x, -1.0], N[((-x) / y), $MachinePrecision], N[(1.0 / y), $MachinePrecision]]

Derivation

1. Split input into 2 regimes

2. if x < -1

   1. Initial program 85.4%

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

      1. associate-/l* 99.8%

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

      2. *-commutative 99.8%

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

   3. Simplified 99.8%

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

   4. Taylor expanded in x around 0 26.9%

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

   5. Taylor expanded in x around inf 26.9%

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

      1. neg-mul-1 26.9%

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

      2. distribute-neg-frac 26.9%

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

   7. Simplified 26.9%

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

   if -1 < x

   1. Initial program 96.1%

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

      1. *-commutative 96.1%

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

      2. associate-*r/ 99.5%

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

      3. associate-/r* 99.7%

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

      4. associate-/r* 99.5%

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

      5. div-sub 99.5%

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

      6. sub-neg 99.5%

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

      7. distribute-frac-neg 99.5%

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

      8. *-lft-identity 99.5%

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

      9. metadata-eval 99.5%

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

      10. times-frac 99.5%

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

      11. neg-mul-1 99.5%

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

      12. remove-double-neg 99.5%

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

      13. *-rgt-identity 99.5%

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

      14. times-frac 99.5%

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

      15. remove-double-neg 99.5%

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

      16. neg-mul-1 99.5%

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

      17. *-commutative 99.5%

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

      18. associate-/l* 99.5%

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

      19. metadata-eval 99.5%

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

      20. /-rgt-identity 99.5%

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

      21. distribute-rgt1-in 99.5%

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

      22. +-commutative 99.5%

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

      23. sub-neg 99.5%

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

      24. *-commutative 99.5%

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

   3. Simplified 99.5%

      \[\leadsto \color{blue}{\left(3 - x\right) \cdot \left(\left(1 - x\right) \cdot \frac{0.3333333333333333}{y}\right)} \]

   4. Taylor expanded in x around 0 69.8%

      \[\leadsto \color{blue}{\frac{1}{y}} \]
3. Recombined 2 regimes into one program.

4. Final simplification 58.9%

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

Alternative 13: 56.9% accurate, 2.2× speedup

Math

\[\begin{array}{l} \\ \frac{1 - x}{y} \end{array} \]

FPCore

(FPCore (x y) :precision binary64 (/ (- 1.0 x) y))

C

double code(double x, double y) {
	return (1.0 - x) / y;
}

Fortran

real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = (1.0d0 - x) / y
end function

Java

public static double code(double x, double y) {
	return (1.0 - x) / y;
}

Python

def code(x, y):
	return (1.0 - x) / y

Julia

function code(x, y)
	return Float64(Float64(1.0 - x) / y)
end

MATLAB

function tmp = code(x, y)
	tmp = (1.0 - x) / y;
end

Wolfram

code[x_, y_] := N[(N[(1.0 - x), $MachinePrecision] / y), $MachinePrecision]

Derivation

1. Initial program 93.4%

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

   1. associate-/l* 99.7%

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

   2. *-commutative 99.7%

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

3. Simplified 99.7%

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

4. Taylor expanded in x around 0 58.0%

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

5. Final simplification 58.0%

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

Alternative 14: 51.8% accurate, 3.7× speedup

Math

\[\begin{array}{l} \\ \frac{1}{y} \end{array} \]

FPCore

(FPCore (x y) :precision binary64 (/ 1.0 y))

C

double code(double x, double y) {
	return 1.0 / y;
}

Fortran

real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = 1.0d0 / y
end function

Java

public static double code(double x, double y) {
	return 1.0 / y;
}

Python

def code(x, y):
	return 1.0 / y

Julia

function code(x, y)
	return Float64(1.0 / y)
end

MATLAB

function tmp = code(x, y)
	tmp = 1.0 / y;
end

Wolfram

code[x_, y_] := N[(1.0 / y), $MachinePrecision]

Derivation

1. Initial program 93.4%

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

   1. *-commutative 93.4%

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

   2. associate-*r/ 99.5%

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

   3. associate-/r* 99.7%

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

   4. associate-/r* 99.5%

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

   5. div-sub 99.5%

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

   6. sub-neg 99.5%

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

   7. distribute-frac-neg 99.5%

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

   8. *-lft-identity 99.5%

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

   9. metadata-eval 99.5%

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

   10. times-frac 99.5%

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

   11. neg-mul-1 99.5%

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

   12. remove-double-neg 99.5%

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

   13. *-rgt-identity 99.5%

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

   14. times-frac 99.5%

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

   15. remove-double-neg 99.5%

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

   16. neg-mul-1 99.5%

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

   17. *-commutative 99.5%

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

   18. associate-/l* 99.5%

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

   19. metadata-eval 99.5%

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

   20. /-rgt-identity 99.5%

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

   21. distribute-rgt1-in 99.5%

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

   22. +-commutative 99.5%

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

   23. sub-neg 99.5%

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

   24. *-commutative 99.5%

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

3. Simplified 99.5%

   \[\leadsto \color{blue}{\left(3 - x\right) \cdot \left(\left(1 - x\right) \cdot \frac{0.3333333333333333}{y}\right)} \]

4. Taylor expanded in x around 0 53.4%

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

5. Final simplification 53.4%

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

Developer target: 99.9% accurate, 1.0× speedup

Math

\[\begin{array}{l} \\ \frac{1 - x}{y} \cdot \frac{3 - x}{3} \end{array} \]

FPCore

(FPCore (x y) :precision binary64 (* (/ (- 1.0 x) y) (/ (- 3.0 x) 3.0)))

C

double code(double x, double y) {
	return ((1.0 - x) / y) * ((3.0 - x) / 3.0);
}

Fortran

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

Java

public static double code(double x, double y) {
	return ((1.0 - x) / y) * ((3.0 - x) / 3.0);
}

Python

def code(x, y):
	return ((1.0 - x) / y) * ((3.0 - x) / 3.0)

Julia

function code(x, y)
	return Float64(Float64(Float64(1.0 - x) / y) * Float64(Float64(3.0 - x) / 3.0))
end

MATLAB

function tmp = code(x, y)
	tmp = ((1.0 - x) / y) * ((3.0 - x) / 3.0);
end

Wolfram

code[x_, y_] := N[(N[(N[(1.0 - x), $MachinePrecision] / y), $MachinePrecision] * N[(N[(3.0 - x), $MachinePrecision] / 3.0), $MachinePrecision]), $MachinePrecision]

Reproduce

herbie shell --seed 2023279 
(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)))