Optimisation.CirclePacking:place from circle-packing-0.1.0.4, H

Percentage Accurate: 100.0% → 100.0%
Time: 4.9s
Alternatives: 10
Speedup: 1.0×

Specification

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

\\
\left(x + y\right) \cdot \left(1 - z\right)
\end{array}

Sampling outcomes in binary64 precision:

Local Percentage Accuracy vs ?

The average percentage accuracy by input value. Horizontal axis shows value of an input variable; the variable is choosen in the title. Vertical axis is accuracy; higher is better. Red represent the original program, while blue represents Herbie's suggestion. These can be toggled with buttons below the plot. The line is an average while dots represent individual samples.

Accuracy vs Speed?

Herbie found 10 alternatives:

AlternativeAccuracySpeedup
The accuracy (vertical axis) and speed (horizontal axis) of each alternatives. Up and to the right is better. The red square shows the initial program, and each blue circle shows an alternative.The line shows the best available speed-accuracy tradeoffs.

Initial Program: 100.0% accurate, 1.0× speedup?

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

\\
\left(x + y\right) \cdot \left(1 - z\right)
\end{array}

Alternative 1: 100.0% accurate, 1.0× speedup?

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

\\
\left(1 - z\right) \cdot \left(x + y\right)
\end{array}
Derivation
  1. Initial program 100.0%

    \[\left(x + y\right) \cdot \left(1 - z\right) \]
  2. Final simplification100.0%

    \[\leadsto \left(1 - z\right) \cdot \left(x + y\right) \]

Alternative 2: 74.4% accurate, 0.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := x \cdot \left(-z\right)\\ \mathbf{if}\;1 - z \leq -400:\\ \;\;\;\;t_0\\ \mathbf{elif}\;1 - z \leq 2:\\ \;\;\;\;x + y\\ \mathbf{elif}\;1 - z \leq 2 \cdot 10^{+117}:\\ \;\;\;\;y \cdot \left(1 - z\right)\\ \mathbf{elif}\;1 - z \leq 5 \cdot 10^{+201}:\\ \;\;\;\;t_0\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(-z\right)\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (let* ((t_0 (* x (- z))))
   (if (<= (- 1.0 z) -400.0)
     t_0
     (if (<= (- 1.0 z) 2.0)
       (+ x y)
       (if (<= (- 1.0 z) 2e+117)
         (* y (- 1.0 z))
         (if (<= (- 1.0 z) 5e+201) t_0 (* y (- z))))))))
double code(double x, double y, double z) {
	double t_0 = x * -z;
	double tmp;
	if ((1.0 - z) <= -400.0) {
		tmp = t_0;
	} else if ((1.0 - z) <= 2.0) {
		tmp = x + y;
	} else if ((1.0 - z) <= 2e+117) {
		tmp = y * (1.0 - z);
	} else if ((1.0 - z) <= 5e+201) {
		tmp = t_0;
	} else {
		tmp = y * -z;
	}
	return tmp;
}
real(8) function code(x, y, z)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8) :: t_0
    real(8) :: tmp
    t_0 = x * -z
    if ((1.0d0 - z) <= (-400.0d0)) then
        tmp = t_0
    else if ((1.0d0 - z) <= 2.0d0) then
        tmp = x + y
    else if ((1.0d0 - z) <= 2d+117) then
        tmp = y * (1.0d0 - z)
    else if ((1.0d0 - z) <= 5d+201) then
        tmp = t_0
    else
        tmp = y * -z
    end if
    code = tmp
end function
public static double code(double x, double y, double z) {
	double t_0 = x * -z;
	double tmp;
	if ((1.0 - z) <= -400.0) {
		tmp = t_0;
	} else if ((1.0 - z) <= 2.0) {
		tmp = x + y;
	} else if ((1.0 - z) <= 2e+117) {
		tmp = y * (1.0 - z);
	} else if ((1.0 - z) <= 5e+201) {
		tmp = t_0;
	} else {
		tmp = y * -z;
	}
	return tmp;
}
def code(x, y, z):
	t_0 = x * -z
	tmp = 0
	if (1.0 - z) <= -400.0:
		tmp = t_0
	elif (1.0 - z) <= 2.0:
		tmp = x + y
	elif (1.0 - z) <= 2e+117:
		tmp = y * (1.0 - z)
	elif (1.0 - z) <= 5e+201:
		tmp = t_0
	else:
		tmp = y * -z
	return tmp
function code(x, y, z)
	t_0 = Float64(x * Float64(-z))
	tmp = 0.0
	if (Float64(1.0 - z) <= -400.0)
		tmp = t_0;
	elseif (Float64(1.0 - z) <= 2.0)
		tmp = Float64(x + y);
	elseif (Float64(1.0 - z) <= 2e+117)
		tmp = Float64(y * Float64(1.0 - z));
	elseif (Float64(1.0 - z) <= 5e+201)
		tmp = t_0;
	else
		tmp = Float64(y * Float64(-z));
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	t_0 = x * -z;
	tmp = 0.0;
	if ((1.0 - z) <= -400.0)
		tmp = t_0;
	elseif ((1.0 - z) <= 2.0)
		tmp = x + y;
	elseif ((1.0 - z) <= 2e+117)
		tmp = y * (1.0 - z);
	elseif ((1.0 - z) <= 5e+201)
		tmp = t_0;
	else
		tmp = y * -z;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := Block[{t$95$0 = N[(x * (-z)), $MachinePrecision]}, If[LessEqual[N[(1.0 - z), $MachinePrecision], -400.0], t$95$0, If[LessEqual[N[(1.0 - z), $MachinePrecision], 2.0], N[(x + y), $MachinePrecision], If[LessEqual[N[(1.0 - z), $MachinePrecision], 2e+117], N[(y * N[(1.0 - z), $MachinePrecision]), $MachinePrecision], If[LessEqual[N[(1.0 - z), $MachinePrecision], 5e+201], t$95$0, N[(y * (-z)), $MachinePrecision]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := x \cdot \left(-z\right)\\
\mathbf{if}\;1 - z \leq -400:\\
\;\;\;\;t_0\\

\mathbf{elif}\;1 - z \leq 2:\\
\;\;\;\;x + y\\

\mathbf{elif}\;1 - z \leq 2 \cdot 10^{+117}:\\
\;\;\;\;y \cdot \left(1 - z\right)\\

\mathbf{elif}\;1 - z \leq 5 \cdot 10^{+201}:\\
\;\;\;\;t_0\\

\mathbf{else}:\\
\;\;\;\;y \cdot \left(-z\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if (-.f64 1 z) < -400 or 2.0000000000000001e117 < (-.f64 1 z) < 4.9999999999999995e201

    1. Initial program 100.0%

      \[\left(x + y\right) \cdot \left(1 - z\right) \]
    2. Taylor expanded in x around inf 64.5%

      \[\leadsto \color{blue}{x \cdot \left(1 - z\right)} \]
    3. Step-by-step derivation
      1. *-commutative64.5%

        \[\leadsto \color{blue}{\left(1 - z\right) \cdot x} \]
    4. Simplified64.5%

      \[\leadsto \color{blue}{\left(1 - z\right) \cdot x} \]
    5. Taylor expanded in z around inf 64.5%

      \[\leadsto \color{blue}{-1 \cdot \left(x \cdot z\right)} \]
    6. Step-by-step derivation
      1. associate-*r*92.8%

        \[\leadsto \left(1 - z\right) \cdot y + \color{blue}{\left(-1 \cdot x\right) \cdot z} \]
      2. neg-mul-192.8%

        \[\leadsto \left(1 - z\right) \cdot y + \color{blue}{\left(-x\right)} \cdot z \]
      3. *-commutative92.8%

        \[\leadsto \left(1 - z\right) \cdot y + \color{blue}{z \cdot \left(-x\right)} \]
    7. Simplified64.5%

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

    if -400 < (-.f64 1 z) < 2

    1. Initial program 99.9%

      \[\left(x + y\right) \cdot \left(1 - z\right) \]
    2. Taylor expanded in z around 0 97.1%

      \[\leadsto \color{blue}{x + y} \]
    3. Step-by-step derivation
      1. +-commutative97.1%

        \[\leadsto \color{blue}{y + x} \]
    4. Simplified97.1%

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

    if 2 < (-.f64 1 z) < 2.0000000000000001e117

    1. Initial program 100.0%

      \[\left(x + y\right) \cdot \left(1 - z\right) \]
    2. Taylor expanded in x around 0 64.5%

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

    if 4.9999999999999995e201 < (-.f64 1 z)

    1. Initial program 100.0%

      \[\left(x + y\right) \cdot \left(1 - z\right) \]
    2. Taylor expanded in z around inf 100.0%

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

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

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

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

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

      \[\leadsto \color{blue}{\left(y + x\right) \cdot \left(-z\right)} \]
    5. Taylor expanded in y around inf 71.1%

      \[\leadsto \color{blue}{-1 \cdot \left(y \cdot z\right)} \]
    6. Step-by-step derivation
      1. associate-*r*71.1%

        \[\leadsto \color{blue}{\left(-1 \cdot y\right) \cdot z} \]
      2. neg-mul-171.1%

        \[\leadsto \color{blue}{\left(-y\right)} \cdot z \]
    7. Simplified71.1%

      \[\leadsto \color{blue}{\left(-y\right) \cdot z} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification81.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;1 - z \leq -400:\\ \;\;\;\;x \cdot \left(-z\right)\\ \mathbf{elif}\;1 - z \leq 2:\\ \;\;\;\;x + y\\ \mathbf{elif}\;1 - z \leq 2 \cdot 10^{+117}:\\ \;\;\;\;y \cdot \left(1 - z\right)\\ \mathbf{elif}\;1 - z \leq 5 \cdot 10^{+201}:\\ \;\;\;\;x \cdot \left(-z\right)\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(-z\right)\\ \end{array} \]

Alternative 3: 74.2% accurate, 0.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := y \cdot \left(-z\right)\\ t_1 := x \cdot \left(-z\right)\\ \mathbf{if}\;z \leq -3.6 \cdot 10^{+202}:\\ \;\;\;\;t_0\\ \mathbf{elif}\;z \leq -3.2 \cdot 10^{+122}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;z \leq -92:\\ \;\;\;\;t_0\\ \mathbf{elif}\;z \leq 1:\\ \;\;\;\;x + y\\ \mathbf{elif}\;z \leq 1.5 \cdot 10^{+191} \lor \neg \left(z \leq 8.5 \cdot 10^{+275}\right):\\ \;\;\;\;t_1\\ \mathbf{else}:\\ \;\;\;\;t_0\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (let* ((t_0 (* y (- z))) (t_1 (* x (- z))))
   (if (<= z -3.6e+202)
     t_0
     (if (<= z -3.2e+122)
       t_1
       (if (<= z -92.0)
         t_0
         (if (<= z 1.0)
           (+ x y)
           (if (or (<= z 1.5e+191) (not (<= z 8.5e+275))) t_1 t_0)))))))
double code(double x, double y, double z) {
	double t_0 = y * -z;
	double t_1 = x * -z;
	double tmp;
	if (z <= -3.6e+202) {
		tmp = t_0;
	} else if (z <= -3.2e+122) {
		tmp = t_1;
	} else if (z <= -92.0) {
		tmp = t_0;
	} else if (z <= 1.0) {
		tmp = x + y;
	} else if ((z <= 1.5e+191) || !(z <= 8.5e+275)) {
		tmp = t_1;
	} else {
		tmp = t_0;
	}
	return tmp;
}
real(8) function code(x, y, z)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8) :: t_0
    real(8) :: t_1
    real(8) :: tmp
    t_0 = y * -z
    t_1 = x * -z
    if (z <= (-3.6d+202)) then
        tmp = t_0
    else if (z <= (-3.2d+122)) then
        tmp = t_1
    else if (z <= (-92.0d0)) then
        tmp = t_0
    else if (z <= 1.0d0) then
        tmp = x + y
    else if ((z <= 1.5d+191) .or. (.not. (z <= 8.5d+275))) then
        tmp = t_1
    else
        tmp = t_0
    end if
    code = tmp
end function
public static double code(double x, double y, double z) {
	double t_0 = y * -z;
	double t_1 = x * -z;
	double tmp;
	if (z <= -3.6e+202) {
		tmp = t_0;
	} else if (z <= -3.2e+122) {
		tmp = t_1;
	} else if (z <= -92.0) {
		tmp = t_0;
	} else if (z <= 1.0) {
		tmp = x + y;
	} else if ((z <= 1.5e+191) || !(z <= 8.5e+275)) {
		tmp = t_1;
	} else {
		tmp = t_0;
	}
	return tmp;
}
def code(x, y, z):
	t_0 = y * -z
	t_1 = x * -z
	tmp = 0
	if z <= -3.6e+202:
		tmp = t_0
	elif z <= -3.2e+122:
		tmp = t_1
	elif z <= -92.0:
		tmp = t_0
	elif z <= 1.0:
		tmp = x + y
	elif (z <= 1.5e+191) or not (z <= 8.5e+275):
		tmp = t_1
	else:
		tmp = t_0
	return tmp
function code(x, y, z)
	t_0 = Float64(y * Float64(-z))
	t_1 = Float64(x * Float64(-z))
	tmp = 0.0
	if (z <= -3.6e+202)
		tmp = t_0;
	elseif (z <= -3.2e+122)
		tmp = t_1;
	elseif (z <= -92.0)
		tmp = t_0;
	elseif (z <= 1.0)
		tmp = Float64(x + y);
	elseif ((z <= 1.5e+191) || !(z <= 8.5e+275))
		tmp = t_1;
	else
		tmp = t_0;
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	t_0 = y * -z;
	t_1 = x * -z;
	tmp = 0.0;
	if (z <= -3.6e+202)
		tmp = t_0;
	elseif (z <= -3.2e+122)
		tmp = t_1;
	elseif (z <= -92.0)
		tmp = t_0;
	elseif (z <= 1.0)
		tmp = x + y;
	elseif ((z <= 1.5e+191) || ~((z <= 8.5e+275)))
		tmp = t_1;
	else
		tmp = t_0;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := Block[{t$95$0 = N[(y * (-z)), $MachinePrecision]}, Block[{t$95$1 = N[(x * (-z)), $MachinePrecision]}, If[LessEqual[z, -3.6e+202], t$95$0, If[LessEqual[z, -3.2e+122], t$95$1, If[LessEqual[z, -92.0], t$95$0, If[LessEqual[z, 1.0], N[(x + y), $MachinePrecision], If[Or[LessEqual[z, 1.5e+191], N[Not[LessEqual[z, 8.5e+275]], $MachinePrecision]], t$95$1, t$95$0]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := y \cdot \left(-z\right)\\
t_1 := x \cdot \left(-z\right)\\
\mathbf{if}\;z \leq -3.6 \cdot 10^{+202}:\\
\;\;\;\;t_0\\

\mathbf{elif}\;z \leq -3.2 \cdot 10^{+122}:\\
\;\;\;\;t_1\\

\mathbf{elif}\;z \leq -92:\\
\;\;\;\;t_0\\

\mathbf{elif}\;z \leq 1:\\
\;\;\;\;x + y\\

\mathbf{elif}\;z \leq 1.5 \cdot 10^{+191} \lor \neg \left(z \leq 8.5 \cdot 10^{+275}\right):\\
\;\;\;\;t_1\\

\mathbf{else}:\\
\;\;\;\;t_0\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if z < -3.60000000000000008e202 or -3.20000000000000012e122 < z < -92 or 1.4999999999999999e191 < z < 8.49999999999999958e275

    1. Initial program 100.0%

      \[\left(x + y\right) \cdot \left(1 - z\right) \]
    2. Taylor expanded in z around inf 98.5%

      \[\leadsto \color{blue}{-1 \cdot \left(z \cdot \left(x + y\right)\right)} \]
    3. Step-by-step derivation
      1. mul-1-neg98.5%

        \[\leadsto \color{blue}{-z \cdot \left(x + y\right)} \]
      2. distribute-lft-neg-out98.5%

        \[\leadsto \color{blue}{\left(-z\right) \cdot \left(x + y\right)} \]
      3. *-commutative98.5%

        \[\leadsto \color{blue}{\left(x + y\right) \cdot \left(-z\right)} \]
      4. +-commutative98.5%

        \[\leadsto \color{blue}{\left(y + x\right)} \cdot \left(-z\right) \]
    4. Simplified98.5%

      \[\leadsto \color{blue}{\left(y + x\right) \cdot \left(-z\right)} \]
    5. Taylor expanded in y around inf 60.9%

      \[\leadsto \color{blue}{-1 \cdot \left(y \cdot z\right)} \]
    6. Step-by-step derivation
      1. associate-*r*60.9%

        \[\leadsto \color{blue}{\left(-1 \cdot y\right) \cdot z} \]
      2. neg-mul-160.9%

        \[\leadsto \color{blue}{\left(-y\right)} \cdot z \]
    7. Simplified60.9%

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

    if -3.60000000000000008e202 < z < -3.20000000000000012e122 or 1 < z < 1.4999999999999999e191 or 8.49999999999999958e275 < z

    1. Initial program 100.0%

      \[\left(x + y\right) \cdot \left(1 - z\right) \]
    2. Taylor expanded in x around inf 61.6%

      \[\leadsto \color{blue}{x \cdot \left(1 - z\right)} \]
    3. Step-by-step derivation
      1. *-commutative61.6%

        \[\leadsto \color{blue}{\left(1 - z\right) \cdot x} \]
    4. Simplified61.6%

      \[\leadsto \color{blue}{\left(1 - z\right) \cdot x} \]
    5. Taylor expanded in z around inf 61.6%

      \[\leadsto \color{blue}{-1 \cdot \left(x \cdot z\right)} \]
    6. Step-by-step derivation
      1. associate-*r*92.2%

        \[\leadsto \left(1 - z\right) \cdot y + \color{blue}{\left(-1 \cdot x\right) \cdot z} \]
      2. neg-mul-192.2%

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

        \[\leadsto \left(1 - z\right) \cdot y + \color{blue}{z \cdot \left(-x\right)} \]
    7. Simplified61.6%

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

    if -92 < z < 1

    1. Initial program 99.9%

      \[\left(x + y\right) \cdot \left(1 - z\right) \]
    2. Taylor expanded in z around 0 97.1%

      \[\leadsto \color{blue}{x + y} \]
    3. Step-by-step derivation
      1. +-commutative97.1%

        \[\leadsto \color{blue}{y + x} \]
    4. Simplified97.1%

      \[\leadsto \color{blue}{y + x} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification79.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -3.6 \cdot 10^{+202}:\\ \;\;\;\;y \cdot \left(-z\right)\\ \mathbf{elif}\;z \leq -3.2 \cdot 10^{+122}:\\ \;\;\;\;x \cdot \left(-z\right)\\ \mathbf{elif}\;z \leq -92:\\ \;\;\;\;y \cdot \left(-z\right)\\ \mathbf{elif}\;z \leq 1:\\ \;\;\;\;x + y\\ \mathbf{elif}\;z \leq 1.5 \cdot 10^{+191} \lor \neg \left(z \leq 8.5 \cdot 10^{+275}\right):\\ \;\;\;\;x \cdot \left(-z\right)\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(-z\right)\\ \end{array} \]

Alternative 4: 97.9% accurate, 0.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;1 - z \leq -400 \lor \neg \left(1 - z \leq 2\right):\\ \;\;\;\;z \cdot \left(\left(-x\right) - y\right)\\ \mathbf{else}:\\ \;\;\;\;x + y\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (if (or (<= (- 1.0 z) -400.0) (not (<= (- 1.0 z) 2.0)))
   (* z (- (- x) y))
   (+ x y)))
double code(double x, double y, double z) {
	double tmp;
	if (((1.0 - z) <= -400.0) || !((1.0 - z) <= 2.0)) {
		tmp = z * (-x - y);
	} else {
		tmp = x + y;
	}
	return tmp;
}
real(8) function code(x, y, z)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8) :: tmp
    if (((1.0d0 - z) <= (-400.0d0)) .or. (.not. ((1.0d0 - z) <= 2.0d0))) then
        tmp = z * (-x - y)
    else
        tmp = x + y
    end if
    code = tmp
end function
public static double code(double x, double y, double z) {
	double tmp;
	if (((1.0 - z) <= -400.0) || !((1.0 - z) <= 2.0)) {
		tmp = z * (-x - y);
	} else {
		tmp = x + y;
	}
	return tmp;
}
def code(x, y, z):
	tmp = 0
	if ((1.0 - z) <= -400.0) or not ((1.0 - z) <= 2.0):
		tmp = z * (-x - y)
	else:
		tmp = x + y
	return tmp
function code(x, y, z)
	tmp = 0.0
	if ((Float64(1.0 - z) <= -400.0) || !(Float64(1.0 - z) <= 2.0))
		tmp = Float64(z * Float64(Float64(-x) - y));
	else
		tmp = Float64(x + y);
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	tmp = 0.0;
	if (((1.0 - z) <= -400.0) || ~(((1.0 - z) <= 2.0)))
		tmp = z * (-x - y);
	else
		tmp = x + y;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := If[Or[LessEqual[N[(1.0 - z), $MachinePrecision], -400.0], N[Not[LessEqual[N[(1.0 - z), $MachinePrecision], 2.0]], $MachinePrecision]], N[(z * N[((-x) - y), $MachinePrecision]), $MachinePrecision], N[(x + y), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;1 - z \leq -400 \lor \neg \left(1 - z \leq 2\right):\\
\;\;\;\;z \cdot \left(\left(-x\right) - y\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (-.f64 1 z) < -400 or 2 < (-.f64 1 z)

    1. Initial program 100.0%

      \[\left(x + y\right) \cdot \left(1 - z\right) \]
    2. Taylor expanded in z around inf 98.0%

      \[\leadsto \color{blue}{-1 \cdot \left(z \cdot \left(x + y\right)\right)} \]
    3. Step-by-step derivation
      1. mul-1-neg98.0%

        \[\leadsto \color{blue}{-z \cdot \left(x + y\right)} \]
      2. distribute-lft-neg-out98.0%

        \[\leadsto \color{blue}{\left(-z\right) \cdot \left(x + y\right)} \]
      3. *-commutative98.0%

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

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

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

    if -400 < (-.f64 1 z) < 2

    1. Initial program 99.9%

      \[\left(x + y\right) \cdot \left(1 - z\right) \]
    2. Taylor expanded in z around 0 97.1%

      \[\leadsto \color{blue}{x + y} \]
    3. Step-by-step derivation
      1. +-commutative97.1%

        \[\leadsto \color{blue}{y + x} \]
    4. Simplified97.1%

      \[\leadsto \color{blue}{y + x} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification97.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;1 - z \leq -400 \lor \neg \left(1 - z \leq 2\right):\\ \;\;\;\;z \cdot \left(\left(-x\right) - y\right)\\ \mathbf{else}:\\ \;\;\;\;x + y\\ \end{array} \]

Alternative 5: 62.6% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq 1.05 \cdot 10^{-39} \lor \neg \left(y \leq 1.55 \cdot 10^{+99}\right) \land y \leq 1.1 \cdot 10^{+114}:\\ \;\;\;\;x \cdot \left(1 - z\right)\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(1 - z\right)\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (if (or (<= y 1.05e-39) (and (not (<= y 1.55e+99)) (<= y 1.1e+114)))
   (* x (- 1.0 z))
   (* y (- 1.0 z))))
double code(double x, double y, double z) {
	double tmp;
	if ((y <= 1.05e-39) || (!(y <= 1.55e+99) && (y <= 1.1e+114))) {
		tmp = x * (1.0 - z);
	} else {
		tmp = y * (1.0 - z);
	}
	return tmp;
}
real(8) function code(x, y, z)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8) :: tmp
    if ((y <= 1.05d-39) .or. (.not. (y <= 1.55d+99)) .and. (y <= 1.1d+114)) then
        tmp = x * (1.0d0 - z)
    else
        tmp = y * (1.0d0 - z)
    end if
    code = tmp
end function
public static double code(double x, double y, double z) {
	double tmp;
	if ((y <= 1.05e-39) || (!(y <= 1.55e+99) && (y <= 1.1e+114))) {
		tmp = x * (1.0 - z);
	} else {
		tmp = y * (1.0 - z);
	}
	return tmp;
}
def code(x, y, z):
	tmp = 0
	if (y <= 1.05e-39) or (not (y <= 1.55e+99) and (y <= 1.1e+114)):
		tmp = x * (1.0 - z)
	else:
		tmp = y * (1.0 - z)
	return tmp
function code(x, y, z)
	tmp = 0.0
	if ((y <= 1.05e-39) || (!(y <= 1.55e+99) && (y <= 1.1e+114)))
		tmp = Float64(x * Float64(1.0 - z));
	else
		tmp = Float64(y * Float64(1.0 - z));
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	tmp = 0.0;
	if ((y <= 1.05e-39) || (~((y <= 1.55e+99)) && (y <= 1.1e+114)))
		tmp = x * (1.0 - z);
	else
		tmp = y * (1.0 - z);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := If[Or[LessEqual[y, 1.05e-39], And[N[Not[LessEqual[y, 1.55e+99]], $MachinePrecision], LessEqual[y, 1.1e+114]]], N[(x * N[(1.0 - z), $MachinePrecision]), $MachinePrecision], N[(y * N[(1.0 - z), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq 1.05 \cdot 10^{-39} \lor \neg \left(y \leq 1.55 \cdot 10^{+99}\right) \land y \leq 1.1 \cdot 10^{+114}:\\
\;\;\;\;x \cdot \left(1 - z\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < 1.04999999999999997e-39 or 1.55e99 < y < 1.1e114

    1. Initial program 100.0%

      \[\left(x + y\right) \cdot \left(1 - z\right) \]
    2. Taylor expanded in x around inf 62.6%

      \[\leadsto \color{blue}{x \cdot \left(1 - z\right)} \]
    3. Step-by-step derivation
      1. *-commutative62.6%

        \[\leadsto \color{blue}{\left(1 - z\right) \cdot x} \]
    4. Simplified62.6%

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

    if 1.04999999999999997e-39 < y < 1.55e99 or 1.1e114 < y

    1. Initial program 100.0%

      \[\left(x + y\right) \cdot \left(1 - z\right) \]
    2. Taylor expanded in x around 0 75.9%

      \[\leadsto \color{blue}{y \cdot \left(1 - z\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification66.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq 1.05 \cdot 10^{-39} \lor \neg \left(y \leq 1.55 \cdot 10^{+99}\right) \land y \leq 1.1 \cdot 10^{+114}:\\ \;\;\;\;x \cdot \left(1 - z\right)\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(1 - z\right)\\ \end{array} \]

Alternative 6: 62.6% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq 6.8 \cdot 10^{-38}:\\ \;\;\;\;x - x \cdot z\\ \mathbf{elif}\;y \leq 1.5 \cdot 10^{+99} \lor \neg \left(y \leq 1.1 \cdot 10^{+114}\right):\\ \;\;\;\;y \cdot \left(1 - z\right)\\ \mathbf{else}:\\ \;\;\;\;x \cdot \left(1 - z\right)\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (if (<= y 6.8e-38)
   (- x (* x z))
   (if (or (<= y 1.5e+99) (not (<= y 1.1e+114)))
     (* y (- 1.0 z))
     (* x (- 1.0 z)))))
double code(double x, double y, double z) {
	double tmp;
	if (y <= 6.8e-38) {
		tmp = x - (x * z);
	} else if ((y <= 1.5e+99) || !(y <= 1.1e+114)) {
		tmp = y * (1.0 - z);
	} else {
		tmp = x * (1.0 - z);
	}
	return tmp;
}
real(8) function code(x, y, z)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8) :: tmp
    if (y <= 6.8d-38) then
        tmp = x - (x * z)
    else if ((y <= 1.5d+99) .or. (.not. (y <= 1.1d+114))) then
        tmp = y * (1.0d0 - z)
    else
        tmp = x * (1.0d0 - z)
    end if
    code = tmp
end function
public static double code(double x, double y, double z) {
	double tmp;
	if (y <= 6.8e-38) {
		tmp = x - (x * z);
	} else if ((y <= 1.5e+99) || !(y <= 1.1e+114)) {
		tmp = y * (1.0 - z);
	} else {
		tmp = x * (1.0 - z);
	}
	return tmp;
}
def code(x, y, z):
	tmp = 0
	if y <= 6.8e-38:
		tmp = x - (x * z)
	elif (y <= 1.5e+99) or not (y <= 1.1e+114):
		tmp = y * (1.0 - z)
	else:
		tmp = x * (1.0 - z)
	return tmp
function code(x, y, z)
	tmp = 0.0
	if (y <= 6.8e-38)
		tmp = Float64(x - Float64(x * z));
	elseif ((y <= 1.5e+99) || !(y <= 1.1e+114))
		tmp = Float64(y * Float64(1.0 - z));
	else
		tmp = Float64(x * Float64(1.0 - z));
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	tmp = 0.0;
	if (y <= 6.8e-38)
		tmp = x - (x * z);
	elseif ((y <= 1.5e+99) || ~((y <= 1.1e+114)))
		tmp = y * (1.0 - z);
	else
		tmp = x * (1.0 - z);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := If[LessEqual[y, 6.8e-38], N[(x - N[(x * z), $MachinePrecision]), $MachinePrecision], If[Or[LessEqual[y, 1.5e+99], N[Not[LessEqual[y, 1.1e+114]], $MachinePrecision]], N[(y * N[(1.0 - z), $MachinePrecision]), $MachinePrecision], N[(x * N[(1.0 - z), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq 6.8 \cdot 10^{-38}:\\
\;\;\;\;x - x \cdot z\\

\mathbf{elif}\;y \leq 1.5 \cdot 10^{+99} \lor \neg \left(y \leq 1.1 \cdot 10^{+114}\right):\\
\;\;\;\;y \cdot \left(1 - z\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < 6.8000000000000004e-38

    1. Initial program 100.0%

      \[\left(x + y\right) \cdot \left(1 - z\right) \]
    2. Taylor expanded in x around inf 62.0%

      \[\leadsto \color{blue}{x \cdot \left(1 - z\right)} \]
    3. Step-by-step derivation
      1. sub-neg62.0%

        \[\leadsto x \cdot \color{blue}{\left(1 + \left(-z\right)\right)} \]
      2. distribute-rgt-in62.0%

        \[\leadsto \color{blue}{1 \cdot x + \left(-z\right) \cdot x} \]
      3. distribute-lft-neg-out62.0%

        \[\leadsto 1 \cdot x + \color{blue}{\left(-z \cdot x\right)} \]
      4. unsub-neg62.0%

        \[\leadsto \color{blue}{1 \cdot x - z \cdot x} \]
      5. *-lft-identity62.0%

        \[\leadsto \color{blue}{x} - z \cdot x \]
    4. Simplified62.0%

      \[\leadsto \color{blue}{x - z \cdot x} \]

    if 6.8000000000000004e-38 < y < 1.50000000000000007e99 or 1.1e114 < y

    1. Initial program 100.0%

      \[\left(x + y\right) \cdot \left(1 - z\right) \]
    2. Taylor expanded in x around 0 75.9%

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

    if 1.50000000000000007e99 < y < 1.1e114

    1. Initial program 100.0%

      \[\left(x + y\right) \cdot \left(1 - z\right) \]
    2. Taylor expanded in x around inf 100.0%

      \[\leadsto \color{blue}{x \cdot \left(1 - z\right)} \]
    3. Step-by-step derivation
      1. *-commutative100.0%

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

      \[\leadsto \color{blue}{\left(1 - z\right) \cdot x} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification66.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq 6.8 \cdot 10^{-38}:\\ \;\;\;\;x - x \cdot z\\ \mathbf{elif}\;y \leq 1.5 \cdot 10^{+99} \lor \neg \left(y \leq 1.1 \cdot 10^{+114}\right):\\ \;\;\;\;y \cdot \left(1 - z\right)\\ \mathbf{else}:\\ \;\;\;\;x \cdot \left(1 - z\right)\\ \end{array} \]

Alternative 7: 74.0% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -9000000 \lor \neg \left(z \leq 1\right):\\ \;\;\;\;x \cdot \left(-z\right)\\ \mathbf{else}:\\ \;\;\;\;x + y\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (if (or (<= z -9000000.0) (not (<= z 1.0))) (* x (- z)) (+ x y)))
double code(double x, double y, double z) {
	double tmp;
	if ((z <= -9000000.0) || !(z <= 1.0)) {
		tmp = x * -z;
	} else {
		tmp = x + y;
	}
	return tmp;
}
real(8) function code(x, y, z)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8) :: tmp
    if ((z <= (-9000000.0d0)) .or. (.not. (z <= 1.0d0))) then
        tmp = x * -z
    else
        tmp = x + y
    end if
    code = tmp
end function
public static double code(double x, double y, double z) {
	double tmp;
	if ((z <= -9000000.0) || !(z <= 1.0)) {
		tmp = x * -z;
	} else {
		tmp = x + y;
	}
	return tmp;
}
def code(x, y, z):
	tmp = 0
	if (z <= -9000000.0) or not (z <= 1.0):
		tmp = x * -z
	else:
		tmp = x + y
	return tmp
function code(x, y, z)
	tmp = 0.0
	if ((z <= -9000000.0) || !(z <= 1.0))
		tmp = Float64(x * Float64(-z));
	else
		tmp = Float64(x + y);
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	tmp = 0.0;
	if ((z <= -9000000.0) || ~((z <= 1.0)))
		tmp = x * -z;
	else
		tmp = x + y;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := If[Or[LessEqual[z, -9000000.0], N[Not[LessEqual[z, 1.0]], $MachinePrecision]], N[(x * (-z)), $MachinePrecision], N[(x + y), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -9000000 \lor \neg \left(z \leq 1\right):\\
\;\;\;\;x \cdot \left(-z\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -9e6 or 1 < z

    1. Initial program 100.0%

      \[\left(x + y\right) \cdot \left(1 - z\right) \]
    2. Taylor expanded in x around inf 56.5%

      \[\leadsto \color{blue}{x \cdot \left(1 - z\right)} \]
    3. Step-by-step derivation
      1. *-commutative56.5%

        \[\leadsto \color{blue}{\left(1 - z\right) \cdot x} \]
    4. Simplified56.5%

      \[\leadsto \color{blue}{\left(1 - z\right) \cdot x} \]
    5. Taylor expanded in z around inf 56.5%

      \[\leadsto \color{blue}{-1 \cdot \left(x \cdot z\right)} \]
    6. Step-by-step derivation
      1. associate-*r*93.8%

        \[\leadsto \left(1 - z\right) \cdot y + \color{blue}{\left(-1 \cdot x\right) \cdot z} \]
      2. neg-mul-193.8%

        \[\leadsto \left(1 - z\right) \cdot y + \color{blue}{\left(-x\right)} \cdot z \]
      3. *-commutative93.8%

        \[\leadsto \left(1 - z\right) \cdot y + \color{blue}{z \cdot \left(-x\right)} \]
    7. Simplified56.5%

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

    if -9e6 < z < 1

    1. Initial program 99.9%

      \[\left(x + y\right) \cdot \left(1 - z\right) \]
    2. Taylor expanded in z around 0 96.4%

      \[\leadsto \color{blue}{x + y} \]
    3. Step-by-step derivation
      1. +-commutative96.4%

        \[\leadsto \color{blue}{y + x} \]
    4. Simplified96.4%

      \[\leadsto \color{blue}{y + x} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification76.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -9000000 \lor \neg \left(z \leq 1\right):\\ \;\;\;\;x \cdot \left(-z\right)\\ \mathbf{else}:\\ \;\;\;\;x + y\\ \end{array} \]

Alternative 8: 30.8% accurate, 2.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -4 \cdot 10^{-148}:\\ \;\;\;\;x\\ \mathbf{else}:\\ \;\;\;\;y\\ \end{array} \end{array} \]
(FPCore (x y z) :precision binary64 (if (<= x -4e-148) x y))
double code(double x, double y, double z) {
	double tmp;
	if (x <= -4e-148) {
		tmp = x;
	} else {
		tmp = y;
	}
	return tmp;
}
real(8) function code(x, y, z)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8) :: tmp
    if (x <= (-4d-148)) then
        tmp = x
    else
        tmp = y
    end if
    code = tmp
end function
public static double code(double x, double y, double z) {
	double tmp;
	if (x <= -4e-148) {
		tmp = x;
	} else {
		tmp = y;
	}
	return tmp;
}
def code(x, y, z):
	tmp = 0
	if x <= -4e-148:
		tmp = x
	else:
		tmp = y
	return tmp
function code(x, y, z)
	tmp = 0.0
	if (x <= -4e-148)
		tmp = x;
	else
		tmp = y;
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	tmp = 0.0;
	if (x <= -4e-148)
		tmp = x;
	else
		tmp = y;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := If[LessEqual[x, -4e-148], x, y]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq -4 \cdot 10^{-148}:\\
\;\;\;\;x\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < -3.99999999999999974e-148

    1. Initial program 100.0%

      \[\left(x + y\right) \cdot \left(1 - z\right) \]
    2. Taylor expanded in x around inf 67.0%

      \[\leadsto \color{blue}{x \cdot \left(1 - z\right)} \]
    3. Step-by-step derivation
      1. *-commutative67.0%

        \[\leadsto \color{blue}{\left(1 - z\right) \cdot x} \]
    4. Simplified67.0%

      \[\leadsto \color{blue}{\left(1 - z\right) \cdot x} \]
    5. Taylor expanded in z around 0 33.1%

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

    if -3.99999999999999974e-148 < x

    1. Initial program 100.0%

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

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

        \[\leadsto \left(1 - z\right) \cdot \color{blue}{\left(y + x\right)} \]
      3. distribute-lft-in96.8%

        \[\leadsto \color{blue}{\left(1 - z\right) \cdot y + \left(1 - z\right) \cdot x} \]
    3. Applied egg-rr96.8%

      \[\leadsto \color{blue}{\left(1 - z\right) \cdot y + \left(1 - z\right) \cdot x} \]
    4. Taylor expanded in z around inf 76.9%

      \[\leadsto \left(1 - z\right) \cdot y + \color{blue}{-1 \cdot \left(x \cdot z\right)} \]
    5. Step-by-step derivation
      1. associate-*r*76.9%

        \[\leadsto \left(1 - z\right) \cdot y + \color{blue}{\left(-1 \cdot x\right) \cdot z} \]
      2. neg-mul-176.9%

        \[\leadsto \left(1 - z\right) \cdot y + \color{blue}{\left(-x\right)} \cdot z \]
      3. *-commutative76.9%

        \[\leadsto \left(1 - z\right) \cdot y + \color{blue}{z \cdot \left(-x\right)} \]
    6. Simplified76.9%

      \[\leadsto \left(1 - z\right) \cdot y + \color{blue}{z \cdot \left(-x\right)} \]
    7. Taylor expanded in z around 0 32.6%

      \[\leadsto \color{blue}{y} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification32.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -4 \cdot 10^{-148}:\\ \;\;\;\;x\\ \mathbf{else}:\\ \;\;\;\;y\\ \end{array} \]

Alternative 9: 50.1% accurate, 2.3× speedup?

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

\\
x + y
\end{array}
Derivation
  1. Initial program 100.0%

    \[\left(x + y\right) \cdot \left(1 - z\right) \]
  2. Taylor expanded in z around 0 50.0%

    \[\leadsto \color{blue}{x + y} \]
  3. Step-by-step derivation
    1. +-commutative50.0%

      \[\leadsto \color{blue}{y + x} \]
  4. Simplified50.0%

    \[\leadsto \color{blue}{y + x} \]
  5. Final simplification50.0%

    \[\leadsto x + y \]

Alternative 10: 25.7% accurate, 7.0× speedup?

\[\begin{array}{l} \\ x \end{array} \]
(FPCore (x y z) :precision binary64 x)
double code(double x, double y, double z) {
	return x;
}
real(8) function code(x, y, z)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    code = x
end function
public static double code(double x, double y, double z) {
	return x;
}
def code(x, y, z):
	return x
function code(x, y, z)
	return x
end
function tmp = code(x, y, z)
	tmp = x;
end
code[x_, y_, z_] := x
\begin{array}{l}

\\
x
\end{array}
Derivation
  1. Initial program 100.0%

    \[\left(x + y\right) \cdot \left(1 - z\right) \]
  2. Taylor expanded in x around inf 54.1%

    \[\leadsto \color{blue}{x \cdot \left(1 - z\right)} \]
  3. Step-by-step derivation
    1. *-commutative54.1%

      \[\leadsto \color{blue}{\left(1 - z\right) \cdot x} \]
  4. Simplified54.1%

    \[\leadsto \color{blue}{\left(1 - z\right) \cdot x} \]
  5. Taylor expanded in z around 0 26.6%

    \[\leadsto \color{blue}{x} \]
  6. Final simplification26.6%

    \[\leadsto x \]

Reproduce

?
herbie shell --seed 2023297 
(FPCore (x y z)
  :name "Optimisation.CirclePacking:place from circle-packing-0.1.0.4, H"
  :precision binary64
  (* (+ x y) (- 1.0 z)))