Graphics.Rendering.Plot.Render.Plot.Axis:renderAxisLine from plot-0.2.3.4, B

Percentage Accurate: 98.0% → 98.1%
Time: 14.1s
Alternatives: 14
Speedup: 0.5×

Specification

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

\\
x + y \cdot \frac{z - t}{a - t}
\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 14 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: 98.0% accurate, 1.0× speedup?

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

\\
x + y \cdot \frac{z - t}{a - t}
\end{array}

Alternative 1: 98.1% accurate, 0.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{z - t}{a - t}\\ \mathbf{if}\;t\_1 \leq 10^{+68}:\\ \;\;\;\;x + y \cdot t\_1\\ \mathbf{else}:\\ \;\;\;\;x + \frac{z \cdot y}{a - t}\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (let* ((t_1 (/ (- z t) (- a t))))
   (if (<= t_1 1e+68) (+ x (* y t_1)) (+ x (/ (* z y) (- a t))))))
double code(double x, double y, double z, double t, double a) {
	double t_1 = (z - t) / (a - t);
	double tmp;
	if (t_1 <= 1e+68) {
		tmp = x + (y * t_1);
	} else {
		tmp = x + ((z * y) / (a - t));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8) :: t_1
    real(8) :: tmp
    t_1 = (z - t) / (a - t)
    if (t_1 <= 1d+68) then
        tmp = x + (y * t_1)
    else
        tmp = x + ((z * y) / (a - t))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a) {
	double t_1 = (z - t) / (a - t);
	double tmp;
	if (t_1 <= 1e+68) {
		tmp = x + (y * t_1);
	} else {
		tmp = x + ((z * y) / (a - t));
	}
	return tmp;
}
def code(x, y, z, t, a):
	t_1 = (z - t) / (a - t)
	tmp = 0
	if t_1 <= 1e+68:
		tmp = x + (y * t_1)
	else:
		tmp = x + ((z * y) / (a - t))
	return tmp
function code(x, y, z, t, a)
	t_1 = Float64(Float64(z - t) / Float64(a - t))
	tmp = 0.0
	if (t_1 <= 1e+68)
		tmp = Float64(x + Float64(y * t_1));
	else
		tmp = Float64(x + Float64(Float64(z * y) / Float64(a - t)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a)
	t_1 = (z - t) / (a - t);
	tmp = 0.0;
	if (t_1 <= 1e+68)
		tmp = x + (y * t_1);
	else
		tmp = x + ((z * y) / (a - t));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(N[(z - t), $MachinePrecision] / N[(a - t), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$1, 1e+68], N[(x + N[(y * t$95$1), $MachinePrecision]), $MachinePrecision], N[(x + N[(N[(z * y), $MachinePrecision] / N[(a - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \frac{z - t}{a - t}\\
\mathbf{if}\;t\_1 \leq 10^{+68}:\\
\;\;\;\;x + y \cdot t\_1\\

\mathbf{else}:\\
\;\;\;\;x + \frac{z \cdot y}{a - t}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (/.f64 (-.f64 z t) (-.f64 a t)) < 9.99999999999999953e67

    1. Initial program 98.5%

      \[x + y \cdot \frac{z - t}{a - t} \]
    2. Add Preprocessing

    if 9.99999999999999953e67 < (/.f64 (-.f64 z t) (-.f64 a t))

    1. Initial program 85.1%

      \[x + y \cdot \frac{z - t}{a - t} \]
    2. Add Preprocessing
    3. Taylor expanded in z around inf 97.3%

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

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{z - t}{a - t} \leq 10^{+68}:\\ \;\;\;\;x + y \cdot \frac{z - t}{a - t}\\ \mathbf{else}:\\ \;\;\;\;x + \frac{z \cdot y}{a - t}\\ \end{array} \]
  5. Add Preprocessing

Alternative 2: 84.5% accurate, 0.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := x + y \cdot \frac{z}{a - t}\\ \mathbf{if}\;t \leq -1.9 \cdot 10^{+108}:\\ \;\;\;\;x + y\\ \mathbf{elif}\;t \leq -2 \cdot 10^{-87}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;t \leq -7.8 \cdot 10^{-253}:\\ \;\;\;\;x + \frac{z \cdot y}{a - t}\\ \mathbf{elif}\;t \leq 2.1 \cdot 10^{+78} \lor \neg \left(t \leq 1.9 \cdot 10^{+152}\right) \land t \leq 1.2 \cdot 10^{+173}:\\ \;\;\;\;t\_1\\ \mathbf{else}:\\ \;\;\;\;x + y\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (let* ((t_1 (+ x (* y (/ z (- a t))))))
   (if (<= t -1.9e+108)
     (+ x y)
     (if (<= t -2e-87)
       t_1
       (if (<= t -7.8e-253)
         (+ x (/ (* z y) (- a t)))
         (if (or (<= t 2.1e+78) (and (not (<= t 1.9e+152)) (<= t 1.2e+173)))
           t_1
           (+ x y)))))))
double code(double x, double y, double z, double t, double a) {
	double t_1 = x + (y * (z / (a - t)));
	double tmp;
	if (t <= -1.9e+108) {
		tmp = x + y;
	} else if (t <= -2e-87) {
		tmp = t_1;
	} else if (t <= -7.8e-253) {
		tmp = x + ((z * y) / (a - t));
	} else if ((t <= 2.1e+78) || (!(t <= 1.9e+152) && (t <= 1.2e+173))) {
		tmp = t_1;
	} else {
		tmp = x + y;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8) :: t_1
    real(8) :: tmp
    t_1 = x + (y * (z / (a - t)))
    if (t <= (-1.9d+108)) then
        tmp = x + y
    else if (t <= (-2d-87)) then
        tmp = t_1
    else if (t <= (-7.8d-253)) then
        tmp = x + ((z * y) / (a - t))
    else if ((t <= 2.1d+78) .or. (.not. (t <= 1.9d+152)) .and. (t <= 1.2d+173)) then
        tmp = t_1
    else
        tmp = x + y
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a) {
	double t_1 = x + (y * (z / (a - t)));
	double tmp;
	if (t <= -1.9e+108) {
		tmp = x + y;
	} else if (t <= -2e-87) {
		tmp = t_1;
	} else if (t <= -7.8e-253) {
		tmp = x + ((z * y) / (a - t));
	} else if ((t <= 2.1e+78) || (!(t <= 1.9e+152) && (t <= 1.2e+173))) {
		tmp = t_1;
	} else {
		tmp = x + y;
	}
	return tmp;
}
def code(x, y, z, t, a):
	t_1 = x + (y * (z / (a - t)))
	tmp = 0
	if t <= -1.9e+108:
		tmp = x + y
	elif t <= -2e-87:
		tmp = t_1
	elif t <= -7.8e-253:
		tmp = x + ((z * y) / (a - t))
	elif (t <= 2.1e+78) or (not (t <= 1.9e+152) and (t <= 1.2e+173)):
		tmp = t_1
	else:
		tmp = x + y
	return tmp
function code(x, y, z, t, a)
	t_1 = Float64(x + Float64(y * Float64(z / Float64(a - t))))
	tmp = 0.0
	if (t <= -1.9e+108)
		tmp = Float64(x + y);
	elseif (t <= -2e-87)
		tmp = t_1;
	elseif (t <= -7.8e-253)
		tmp = Float64(x + Float64(Float64(z * y) / Float64(a - t)));
	elseif ((t <= 2.1e+78) || (!(t <= 1.9e+152) && (t <= 1.2e+173)))
		tmp = t_1;
	else
		tmp = Float64(x + y);
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a)
	t_1 = x + (y * (z / (a - t)));
	tmp = 0.0;
	if (t <= -1.9e+108)
		tmp = x + y;
	elseif (t <= -2e-87)
		tmp = t_1;
	elseif (t <= -7.8e-253)
		tmp = x + ((z * y) / (a - t));
	elseif ((t <= 2.1e+78) || (~((t <= 1.9e+152)) && (t <= 1.2e+173)))
		tmp = t_1;
	else
		tmp = x + y;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(x + N[(y * N[(z / N[(a - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t, -1.9e+108], N[(x + y), $MachinePrecision], If[LessEqual[t, -2e-87], t$95$1, If[LessEqual[t, -7.8e-253], N[(x + N[(N[(z * y), $MachinePrecision] / N[(a - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[Or[LessEqual[t, 2.1e+78], And[N[Not[LessEqual[t, 1.9e+152]], $MachinePrecision], LessEqual[t, 1.2e+173]]], t$95$1, N[(x + y), $MachinePrecision]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := x + y \cdot \frac{z}{a - t}\\
\mathbf{if}\;t \leq -1.9 \cdot 10^{+108}:\\
\;\;\;\;x + y\\

\mathbf{elif}\;t \leq -2 \cdot 10^{-87}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;t \leq -7.8 \cdot 10^{-253}:\\
\;\;\;\;x + \frac{z \cdot y}{a - t}\\

\mathbf{elif}\;t \leq 2.1 \cdot 10^{+78} \lor \neg \left(t \leq 1.9 \cdot 10^{+152}\right) \land t \leq 1.2 \cdot 10^{+173}:\\
\;\;\;\;t\_1\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if t < -1.90000000000000004e108 or 2.1000000000000001e78 < t < 1.9e152 or 1.2e173 < t

    1. Initial program 99.9%

      \[x + y \cdot \frac{z - t}{a - t} \]
    2. Add Preprocessing
    3. Taylor expanded in t around inf 86.2%

      \[\leadsto \color{blue}{x + y} \]
    4. Step-by-step derivation
      1. +-commutative86.2%

        \[\leadsto \color{blue}{y + x} \]
    5. Simplified86.2%

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

    if -1.90000000000000004e108 < t < -2.00000000000000004e-87 or -7.7999999999999998e-253 < t < 2.1000000000000001e78 or 1.9e152 < t < 1.2e173

    1. Initial program 97.7%

      \[x + y \cdot \frac{z - t}{a - t} \]
    2. Add Preprocessing
    3. Taylor expanded in z around inf 81.1%

      \[\leadsto x + \color{blue}{\frac{y \cdot z}{a - t}} \]
    4. Step-by-step derivation
      1. associate-/l*84.6%

        \[\leadsto x + \color{blue}{y \cdot \frac{z}{a - t}} \]
    5. Simplified84.6%

      \[\leadsto x + \color{blue}{y \cdot \frac{z}{a - t}} \]

    if -2.00000000000000004e-87 < t < -7.7999999999999998e-253

    1. Initial program 84.5%

      \[x + y \cdot \frac{z - t}{a - t} \]
    2. Add Preprocessing
    3. Taylor expanded in z around inf 94.7%

      \[\leadsto x + \color{blue}{\frac{y \cdot z}{a - t}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification86.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -1.9 \cdot 10^{+108}:\\ \;\;\;\;x + y\\ \mathbf{elif}\;t \leq -2 \cdot 10^{-87}:\\ \;\;\;\;x + y \cdot \frac{z}{a - t}\\ \mathbf{elif}\;t \leq -7.8 \cdot 10^{-253}:\\ \;\;\;\;x + \frac{z \cdot y}{a - t}\\ \mathbf{elif}\;t \leq 2.1 \cdot 10^{+78} \lor \neg \left(t \leq 1.9 \cdot 10^{+152}\right) \land t \leq 1.2 \cdot 10^{+173}:\\ \;\;\;\;x + y \cdot \frac{z}{a - t}\\ \mathbf{else}:\\ \;\;\;\;x + y\\ \end{array} \]
  5. Add Preprocessing

Alternative 3: 84.4% accurate, 0.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := x + y \cdot \frac{z}{a - t}\\ \mathbf{if}\;t \leq -1.05 \cdot 10^{+101}:\\ \;\;\;\;x + y\\ \mathbf{elif}\;t \leq -2 \cdot 10^{-87}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;t \leq -5 \cdot 10^{-253}:\\ \;\;\;\;x + \frac{z \cdot y}{a - t}\\ \mathbf{elif}\;t \leq 5.3 \cdot 10^{+79}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;t \leq 1.15 \cdot 10^{+152}:\\ \;\;\;\;x + y\\ \mathbf{elif}\;t \leq 1.25 \cdot 10^{+175}:\\ \;\;\;\;t\_1\\ \mathbf{else}:\\ \;\;\;\;y + \left(x + a \cdot \frac{y}{t}\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (let* ((t_1 (+ x (* y (/ z (- a t))))))
   (if (<= t -1.05e+101)
     (+ x y)
     (if (<= t -2e-87)
       t_1
       (if (<= t -5e-253)
         (+ x (/ (* z y) (- a t)))
         (if (<= t 5.3e+79)
           t_1
           (if (<= t 1.15e+152)
             (+ x y)
             (if (<= t 1.25e+175) t_1 (+ y (+ x (* a (/ y t))))))))))))
double code(double x, double y, double z, double t, double a) {
	double t_1 = x + (y * (z / (a - t)));
	double tmp;
	if (t <= -1.05e+101) {
		tmp = x + y;
	} else if (t <= -2e-87) {
		tmp = t_1;
	} else if (t <= -5e-253) {
		tmp = x + ((z * y) / (a - t));
	} else if (t <= 5.3e+79) {
		tmp = t_1;
	} else if (t <= 1.15e+152) {
		tmp = x + y;
	} else if (t <= 1.25e+175) {
		tmp = t_1;
	} else {
		tmp = y + (x + (a * (y / t)));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8) :: t_1
    real(8) :: tmp
    t_1 = x + (y * (z / (a - t)))
    if (t <= (-1.05d+101)) then
        tmp = x + y
    else if (t <= (-2d-87)) then
        tmp = t_1
    else if (t <= (-5d-253)) then
        tmp = x + ((z * y) / (a - t))
    else if (t <= 5.3d+79) then
        tmp = t_1
    else if (t <= 1.15d+152) then
        tmp = x + y
    else if (t <= 1.25d+175) then
        tmp = t_1
    else
        tmp = y + (x + (a * (y / t)))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a) {
	double t_1 = x + (y * (z / (a - t)));
	double tmp;
	if (t <= -1.05e+101) {
		tmp = x + y;
	} else if (t <= -2e-87) {
		tmp = t_1;
	} else if (t <= -5e-253) {
		tmp = x + ((z * y) / (a - t));
	} else if (t <= 5.3e+79) {
		tmp = t_1;
	} else if (t <= 1.15e+152) {
		tmp = x + y;
	} else if (t <= 1.25e+175) {
		tmp = t_1;
	} else {
		tmp = y + (x + (a * (y / t)));
	}
	return tmp;
}
def code(x, y, z, t, a):
	t_1 = x + (y * (z / (a - t)))
	tmp = 0
	if t <= -1.05e+101:
		tmp = x + y
	elif t <= -2e-87:
		tmp = t_1
	elif t <= -5e-253:
		tmp = x + ((z * y) / (a - t))
	elif t <= 5.3e+79:
		tmp = t_1
	elif t <= 1.15e+152:
		tmp = x + y
	elif t <= 1.25e+175:
		tmp = t_1
	else:
		tmp = y + (x + (a * (y / t)))
	return tmp
function code(x, y, z, t, a)
	t_1 = Float64(x + Float64(y * Float64(z / Float64(a - t))))
	tmp = 0.0
	if (t <= -1.05e+101)
		tmp = Float64(x + y);
	elseif (t <= -2e-87)
		tmp = t_1;
	elseif (t <= -5e-253)
		tmp = Float64(x + Float64(Float64(z * y) / Float64(a - t)));
	elseif (t <= 5.3e+79)
		tmp = t_1;
	elseif (t <= 1.15e+152)
		tmp = Float64(x + y);
	elseif (t <= 1.25e+175)
		tmp = t_1;
	else
		tmp = Float64(y + Float64(x + Float64(a * Float64(y / t))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a)
	t_1 = x + (y * (z / (a - t)));
	tmp = 0.0;
	if (t <= -1.05e+101)
		tmp = x + y;
	elseif (t <= -2e-87)
		tmp = t_1;
	elseif (t <= -5e-253)
		tmp = x + ((z * y) / (a - t));
	elseif (t <= 5.3e+79)
		tmp = t_1;
	elseif (t <= 1.15e+152)
		tmp = x + y;
	elseif (t <= 1.25e+175)
		tmp = t_1;
	else
		tmp = y + (x + (a * (y / t)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(x + N[(y * N[(z / N[(a - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t, -1.05e+101], N[(x + y), $MachinePrecision], If[LessEqual[t, -2e-87], t$95$1, If[LessEqual[t, -5e-253], N[(x + N[(N[(z * y), $MachinePrecision] / N[(a - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[t, 5.3e+79], t$95$1, If[LessEqual[t, 1.15e+152], N[(x + y), $MachinePrecision], If[LessEqual[t, 1.25e+175], t$95$1, N[(y + N[(x + N[(a * N[(y / t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := x + y \cdot \frac{z}{a - t}\\
\mathbf{if}\;t \leq -1.05 \cdot 10^{+101}:\\
\;\;\;\;x + y\\

\mathbf{elif}\;t \leq -2 \cdot 10^{-87}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;t \leq -5 \cdot 10^{-253}:\\
\;\;\;\;x + \frac{z \cdot y}{a - t}\\

\mathbf{elif}\;t \leq 5.3 \cdot 10^{+79}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;t \leq 1.15 \cdot 10^{+152}:\\
\;\;\;\;x + y\\

\mathbf{elif}\;t \leq 1.25 \cdot 10^{+175}:\\
\;\;\;\;t\_1\\

\mathbf{else}:\\
\;\;\;\;y + \left(x + a \cdot \frac{y}{t}\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if t < -1.05e101 or 5.29999999999999978e79 < t < 1.14999999999999993e152

    1. Initial program 99.9%

      \[x + y \cdot \frac{z - t}{a - t} \]
    2. Add Preprocessing
    3. Taylor expanded in t around inf 79.5%

      \[\leadsto \color{blue}{x + y} \]
    4. Step-by-step derivation
      1. +-commutative79.5%

        \[\leadsto \color{blue}{y + x} \]
    5. Simplified79.5%

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

    if -1.05e101 < t < -2.00000000000000004e-87 or -4.99999999999999971e-253 < t < 5.29999999999999978e79 or 1.14999999999999993e152 < t < 1.25e175

    1. Initial program 97.7%

      \[x + y \cdot \frac{z - t}{a - t} \]
    2. Add Preprocessing
    3. Taylor expanded in z around inf 81.1%

      \[\leadsto x + \color{blue}{\frac{y \cdot z}{a - t}} \]
    4. Step-by-step derivation
      1. associate-/l*84.6%

        \[\leadsto x + \color{blue}{y \cdot \frac{z}{a - t}} \]
    5. Simplified84.6%

      \[\leadsto x + \color{blue}{y \cdot \frac{z}{a - t}} \]

    if -2.00000000000000004e-87 < t < -4.99999999999999971e-253

    1. Initial program 84.5%

      \[x + y \cdot \frac{z - t}{a - t} \]
    2. Add Preprocessing
    3. Taylor expanded in z around inf 94.7%

      \[\leadsto x + \color{blue}{\frac{y \cdot z}{a - t}} \]

    if 1.25e175 < t

    1. Initial program 100.0%

      \[x + y \cdot \frac{z - t}{a - t} \]
    2. Add Preprocessing
    3. Taylor expanded in z around 0 66.8%

      \[\leadsto \color{blue}{x + -1 \cdot \frac{t \cdot y}{a - t}} \]
    4. Step-by-step derivation
      1. mul-1-neg66.8%

        \[\leadsto x + \color{blue}{\left(-\frac{t \cdot y}{a - t}\right)} \]
      2. unsub-neg66.8%

        \[\leadsto \color{blue}{x - \frac{t \cdot y}{a - t}} \]
      3. *-commutative66.8%

        \[\leadsto x - \frac{\color{blue}{y \cdot t}}{a - t} \]
      4. associate-/l*97.2%

        \[\leadsto x - \color{blue}{y \cdot \frac{t}{a - t}} \]
    5. Simplified97.2%

      \[\leadsto \color{blue}{x - y \cdot \frac{t}{a - t}} \]
    6. Taylor expanded in t around inf 88.5%

      \[\leadsto \color{blue}{\left(x + \frac{a \cdot y}{t}\right) - -1 \cdot y} \]
    7. Step-by-step derivation
      1. cancel-sign-sub-inv88.5%

        \[\leadsto \color{blue}{\left(x + \frac{a \cdot y}{t}\right) + \left(--1\right) \cdot y} \]
      2. +-commutative88.5%

        \[\leadsto \color{blue}{\left(\frac{a \cdot y}{t} + x\right)} + \left(--1\right) \cdot y \]
      3. associate-/l*97.1%

        \[\leadsto \left(\color{blue}{a \cdot \frac{y}{t}} + x\right) + \left(--1\right) \cdot y \]
      4. metadata-eval97.1%

        \[\leadsto \left(a \cdot \frac{y}{t} + x\right) + \color{blue}{1} \cdot y \]
      5. *-commutative97.1%

        \[\leadsto \left(a \cdot \frac{y}{t} + x\right) + \color{blue}{y \cdot 1} \]
      6. *-rgt-identity97.1%

        \[\leadsto \left(a \cdot \frac{y}{t} + x\right) + \color{blue}{y} \]
    8. Simplified97.1%

      \[\leadsto \color{blue}{\left(a \cdot \frac{y}{t} + x\right) + y} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification86.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -1.05 \cdot 10^{+101}:\\ \;\;\;\;x + y\\ \mathbf{elif}\;t \leq -2 \cdot 10^{-87}:\\ \;\;\;\;x + y \cdot \frac{z}{a - t}\\ \mathbf{elif}\;t \leq -5 \cdot 10^{-253}:\\ \;\;\;\;x + \frac{z \cdot y}{a - t}\\ \mathbf{elif}\;t \leq 5.3 \cdot 10^{+79}:\\ \;\;\;\;x + y \cdot \frac{z}{a - t}\\ \mathbf{elif}\;t \leq 1.15 \cdot 10^{+152}:\\ \;\;\;\;x + y\\ \mathbf{elif}\;t \leq 1.25 \cdot 10^{+175}:\\ \;\;\;\;x + y \cdot \frac{z}{a - t}\\ \mathbf{else}:\\ \;\;\;\;y + \left(x + a \cdot \frac{y}{t}\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 4: 86.4% accurate, 0.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := x + \left(y - y \cdot \frac{z}{t}\right)\\ \mathbf{if}\;t \leq -1.85 \cdot 10^{+30}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;t \leq -5.5 \cdot 10^{-65}:\\ \;\;\;\;x + y \cdot \frac{z}{a - t}\\ \mathbf{elif}\;t \leq 1.05 \cdot 10^{-80}:\\ \;\;\;\;x + \frac{z \cdot y}{a - t}\\ \mathbf{elif}\;t \leq 6.5 \cdot 10^{+88} \lor \neg \left(t \leq 1.18 \cdot 10^{+154}\right):\\ \;\;\;\;x + y \cdot \frac{t}{t - a}\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (let* ((t_1 (+ x (- y (* y (/ z t))))))
   (if (<= t -1.85e+30)
     t_1
     (if (<= t -5.5e-65)
       (+ x (* y (/ z (- a t))))
       (if (<= t 1.05e-80)
         (+ x (/ (* z y) (- a t)))
         (if (or (<= t 6.5e+88) (not (<= t 1.18e+154)))
           (+ x (* y (/ t (- t a))))
           t_1))))))
double code(double x, double y, double z, double t, double a) {
	double t_1 = x + (y - (y * (z / t)));
	double tmp;
	if (t <= -1.85e+30) {
		tmp = t_1;
	} else if (t <= -5.5e-65) {
		tmp = x + (y * (z / (a - t)));
	} else if (t <= 1.05e-80) {
		tmp = x + ((z * y) / (a - t));
	} else if ((t <= 6.5e+88) || !(t <= 1.18e+154)) {
		tmp = x + (y * (t / (t - a)));
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8) :: t_1
    real(8) :: tmp
    t_1 = x + (y - (y * (z / t)))
    if (t <= (-1.85d+30)) then
        tmp = t_1
    else if (t <= (-5.5d-65)) then
        tmp = x + (y * (z / (a - t)))
    else if (t <= 1.05d-80) then
        tmp = x + ((z * y) / (a - t))
    else if ((t <= 6.5d+88) .or. (.not. (t <= 1.18d+154))) then
        tmp = x + (y * (t / (t - a)))
    else
        tmp = t_1
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a) {
	double t_1 = x + (y - (y * (z / t)));
	double tmp;
	if (t <= -1.85e+30) {
		tmp = t_1;
	} else if (t <= -5.5e-65) {
		tmp = x + (y * (z / (a - t)));
	} else if (t <= 1.05e-80) {
		tmp = x + ((z * y) / (a - t));
	} else if ((t <= 6.5e+88) || !(t <= 1.18e+154)) {
		tmp = x + (y * (t / (t - a)));
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a):
	t_1 = x + (y - (y * (z / t)))
	tmp = 0
	if t <= -1.85e+30:
		tmp = t_1
	elif t <= -5.5e-65:
		tmp = x + (y * (z / (a - t)))
	elif t <= 1.05e-80:
		tmp = x + ((z * y) / (a - t))
	elif (t <= 6.5e+88) or not (t <= 1.18e+154):
		tmp = x + (y * (t / (t - a)))
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a)
	t_1 = Float64(x + Float64(y - Float64(y * Float64(z / t))))
	tmp = 0.0
	if (t <= -1.85e+30)
		tmp = t_1;
	elseif (t <= -5.5e-65)
		tmp = Float64(x + Float64(y * Float64(z / Float64(a - t))));
	elseif (t <= 1.05e-80)
		tmp = Float64(x + Float64(Float64(z * y) / Float64(a - t)));
	elseif ((t <= 6.5e+88) || !(t <= 1.18e+154))
		tmp = Float64(x + Float64(y * Float64(t / Float64(t - a))));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a)
	t_1 = x + (y - (y * (z / t)));
	tmp = 0.0;
	if (t <= -1.85e+30)
		tmp = t_1;
	elseif (t <= -5.5e-65)
		tmp = x + (y * (z / (a - t)));
	elseif (t <= 1.05e-80)
		tmp = x + ((z * y) / (a - t));
	elseif ((t <= 6.5e+88) || ~((t <= 1.18e+154)))
		tmp = x + (y * (t / (t - a)));
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(x + N[(y - N[(y * N[(z / t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t, -1.85e+30], t$95$1, If[LessEqual[t, -5.5e-65], N[(x + N[(y * N[(z / N[(a - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[t, 1.05e-80], N[(x + N[(N[(z * y), $MachinePrecision] / N[(a - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[Or[LessEqual[t, 6.5e+88], N[Not[LessEqual[t, 1.18e+154]], $MachinePrecision]], N[(x + N[(y * N[(t / N[(t - a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := x + \left(y - y \cdot \frac{z}{t}\right)\\
\mathbf{if}\;t \leq -1.85 \cdot 10^{+30}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;t \leq -5.5 \cdot 10^{-65}:\\
\;\;\;\;x + y \cdot \frac{z}{a - t}\\

\mathbf{elif}\;t \leq 1.05 \cdot 10^{-80}:\\
\;\;\;\;x + \frac{z \cdot y}{a - t}\\

\mathbf{elif}\;t \leq 6.5 \cdot 10^{+88} \lor \neg \left(t \leq 1.18 \cdot 10^{+154}\right):\\
\;\;\;\;x + y \cdot \frac{t}{t - a}\\

\mathbf{else}:\\
\;\;\;\;t\_1\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if t < -1.85000000000000008e30 or 6.5000000000000002e88 < t < 1.18000000000000004e154

    1. Initial program 99.9%

      \[x + y \cdot \frac{z - t}{a - t} \]
    2. Add Preprocessing
    3. Taylor expanded in a around 0 63.9%

      \[\leadsto \color{blue}{x + -1 \cdot \frac{y \cdot \left(z - t\right)}{t}} \]
    4. Step-by-step derivation
      1. +-commutative63.9%

        \[\leadsto \color{blue}{-1 \cdot \frac{y \cdot \left(z - t\right)}{t} + x} \]
      2. associate-*r/63.9%

        \[\leadsto \color{blue}{\frac{-1 \cdot \left(y \cdot \left(z - t\right)\right)}{t}} + x \]
      3. mul-1-neg63.9%

        \[\leadsto \frac{\color{blue}{-y \cdot \left(z - t\right)}}{t} + x \]
      4. *-commutative63.9%

        \[\leadsto \frac{-\color{blue}{\left(z - t\right) \cdot y}}{t} + x \]
      5. distribute-rgt-neg-out63.9%

        \[\leadsto \frac{\color{blue}{\left(z - t\right) \cdot \left(-y\right)}}{t} + x \]
    5. Simplified63.9%

      \[\leadsto \color{blue}{\frac{\left(z - t\right) \cdot \left(-y\right)}{t} + x} \]
    6. Taylor expanded in z around 0 75.5%

      \[\leadsto \color{blue}{\left(y + -1 \cdot \frac{y \cdot z}{t}\right)} + x \]
    7. Step-by-step derivation
      1. mul-1-neg75.5%

        \[\leadsto \left(y + \color{blue}{\left(-\frac{y \cdot z}{t}\right)}\right) + x \]
      2. unsub-neg75.5%

        \[\leadsto \color{blue}{\left(y - \frac{y \cdot z}{t}\right)} + x \]
      3. associate-/l*92.3%

        \[\leadsto \left(y - \color{blue}{y \cdot \frac{z}{t}}\right) + x \]
    8. Simplified92.3%

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

    if -1.85000000000000008e30 < t < -5.4999999999999999e-65

    1. Initial program 99.8%

      \[x + y \cdot \frac{z - t}{a - t} \]
    2. Add Preprocessing
    3. Taylor expanded in z around inf 69.7%

      \[\leadsto x + \color{blue}{\frac{y \cdot z}{a - t}} \]
    4. Step-by-step derivation
      1. associate-/l*79.6%

        \[\leadsto x + \color{blue}{y \cdot \frac{z}{a - t}} \]
    5. Simplified79.6%

      \[\leadsto x + \color{blue}{y \cdot \frac{z}{a - t}} \]

    if -5.4999999999999999e-65 < t < 1.05000000000000001e-80

    1. Initial program 91.6%

      \[x + y \cdot \frac{z - t}{a - t} \]
    2. Add Preprocessing
    3. Taylor expanded in z around inf 94.4%

      \[\leadsto x + \color{blue}{\frac{y \cdot z}{a - t}} \]

    if 1.05000000000000001e-80 < t < 6.5000000000000002e88 or 1.18000000000000004e154 < t

    1. Initial program 99.9%

      \[x + y \cdot \frac{z - t}{a - t} \]
    2. Add Preprocessing
    3. Taylor expanded in z around 0 70.3%

      \[\leadsto \color{blue}{x + -1 \cdot \frac{t \cdot y}{a - t}} \]
    4. Step-by-step derivation
      1. mul-1-neg70.3%

        \[\leadsto x + \color{blue}{\left(-\frac{t \cdot y}{a - t}\right)} \]
      2. unsub-neg70.3%

        \[\leadsto \color{blue}{x - \frac{t \cdot y}{a - t}} \]
      3. *-commutative70.3%

        \[\leadsto x - \frac{\color{blue}{y \cdot t}}{a - t} \]
      4. associate-/l*85.9%

        \[\leadsto x - \color{blue}{y \cdot \frac{t}{a - t}} \]
    5. Simplified85.9%

      \[\leadsto \color{blue}{x - y \cdot \frac{t}{a - t}} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification90.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -1.85 \cdot 10^{+30}:\\ \;\;\;\;x + \left(y - y \cdot \frac{z}{t}\right)\\ \mathbf{elif}\;t \leq -5.5 \cdot 10^{-65}:\\ \;\;\;\;x + y \cdot \frac{z}{a - t}\\ \mathbf{elif}\;t \leq 1.05 \cdot 10^{-80}:\\ \;\;\;\;x + \frac{z \cdot y}{a - t}\\ \mathbf{elif}\;t \leq 6.5 \cdot 10^{+88} \lor \neg \left(t \leq 1.18 \cdot 10^{+154}\right):\\ \;\;\;\;x + y \cdot \frac{t}{t - a}\\ \mathbf{else}:\\ \;\;\;\;x + \left(y - y \cdot \frac{z}{t}\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 5: 84.1% accurate, 0.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t \leq -5.8 \cdot 10^{+106} \lor \neg \left(t \leq 8 \cdot 10^{+79}\right) \land \left(t \leq 1.2 \cdot 10^{+152} \lor \neg \left(t \leq 2.9 \cdot 10^{+183}\right)\right):\\ \;\;\;\;x + y\\ \mathbf{else}:\\ \;\;\;\;x + y \cdot \frac{z}{a - t}\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (if (or (<= t -5.8e+106)
         (and (not (<= t 8e+79)) (or (<= t 1.2e+152) (not (<= t 2.9e+183)))))
   (+ x y)
   (+ x (* y (/ z (- a t))))))
double code(double x, double y, double z, double t, double a) {
	double tmp;
	if ((t <= -5.8e+106) || (!(t <= 8e+79) && ((t <= 1.2e+152) || !(t <= 2.9e+183)))) {
		tmp = x + y;
	} else {
		tmp = x + (y * (z / (a - t)));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8) :: tmp
    if ((t <= (-5.8d+106)) .or. (.not. (t <= 8d+79)) .and. (t <= 1.2d+152) .or. (.not. (t <= 2.9d+183))) then
        tmp = x + y
    else
        tmp = x + (y * (z / (a - t)))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a) {
	double tmp;
	if ((t <= -5.8e+106) || (!(t <= 8e+79) && ((t <= 1.2e+152) || !(t <= 2.9e+183)))) {
		tmp = x + y;
	} else {
		tmp = x + (y * (z / (a - t)));
	}
	return tmp;
}
def code(x, y, z, t, a):
	tmp = 0
	if (t <= -5.8e+106) or (not (t <= 8e+79) and ((t <= 1.2e+152) or not (t <= 2.9e+183))):
		tmp = x + y
	else:
		tmp = x + (y * (z / (a - t)))
	return tmp
function code(x, y, z, t, a)
	tmp = 0.0
	if ((t <= -5.8e+106) || (!(t <= 8e+79) && ((t <= 1.2e+152) || !(t <= 2.9e+183))))
		tmp = Float64(x + y);
	else
		tmp = Float64(x + Float64(y * Float64(z / Float64(a - t))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a)
	tmp = 0.0;
	if ((t <= -5.8e+106) || (~((t <= 8e+79)) && ((t <= 1.2e+152) || ~((t <= 2.9e+183)))))
		tmp = x + y;
	else
		tmp = x + (y * (z / (a - t)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_] := If[Or[LessEqual[t, -5.8e+106], And[N[Not[LessEqual[t, 8e+79]], $MachinePrecision], Or[LessEqual[t, 1.2e+152], N[Not[LessEqual[t, 2.9e+183]], $MachinePrecision]]]], N[(x + y), $MachinePrecision], N[(x + N[(y * N[(z / N[(a - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t \leq -5.8 \cdot 10^{+106} \lor \neg \left(t \leq 8 \cdot 10^{+79}\right) \land \left(t \leq 1.2 \cdot 10^{+152} \lor \neg \left(t \leq 2.9 \cdot 10^{+183}\right)\right):\\
\;\;\;\;x + y\\

\mathbf{else}:\\
\;\;\;\;x + y \cdot \frac{z}{a - t}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if t < -5.8000000000000004e106 or 7.99999999999999974e79 < t < 1.2e152 or 2.9000000000000001e183 < t

    1. Initial program 99.9%

      \[x + y \cdot \frac{z - t}{a - t} \]
    2. Add Preprocessing
    3. Taylor expanded in t around inf 86.9%

      \[\leadsto \color{blue}{x + y} \]
    4. Step-by-step derivation
      1. +-commutative86.9%

        \[\leadsto \color{blue}{y + x} \]
    5. Simplified86.9%

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

    if -5.8000000000000004e106 < t < 7.99999999999999974e79 or 1.2e152 < t < 2.9000000000000001e183

    1. Initial program 94.9%

      \[x + y \cdot \frac{z - t}{a - t} \]
    2. Add Preprocessing
    3. Taylor expanded in z around inf 83.8%

      \[\leadsto x + \color{blue}{\frac{y \cdot z}{a - t}} \]
    4. Step-by-step derivation
      1. associate-/l*84.3%

        \[\leadsto x + \color{blue}{y \cdot \frac{z}{a - t}} \]
    5. Simplified84.3%

      \[\leadsto x + \color{blue}{y \cdot \frac{z}{a - t}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification85.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -5.8 \cdot 10^{+106} \lor \neg \left(t \leq 8 \cdot 10^{+79}\right) \land \left(t \leq 1.2 \cdot 10^{+152} \lor \neg \left(t \leq 2.9 \cdot 10^{+183}\right)\right):\\ \;\;\;\;x + y\\ \mathbf{else}:\\ \;\;\;\;x + y \cdot \frac{z}{a - t}\\ \end{array} \]
  5. Add Preprocessing

Alternative 6: 85.6% accurate, 0.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := x + \left(y - y \cdot \frac{z}{t}\right)\\ \mathbf{if}\;t \leq -4.4 \cdot 10^{+30}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;t \leq -1 \cdot 10^{-69}:\\ \;\;\;\;x + y \cdot \frac{z}{a - t}\\ \mathbf{elif}\;t \leq 2.15 \cdot 10^{-100}:\\ \;\;\;\;x + \frac{z \cdot y}{a - t}\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (let* ((t_1 (+ x (- y (* y (/ z t))))))
   (if (<= t -4.4e+30)
     t_1
     (if (<= t -1e-69)
       (+ x (* y (/ z (- a t))))
       (if (<= t 2.15e-100) (+ x (/ (* z y) (- a t))) t_1)))))
double code(double x, double y, double z, double t, double a) {
	double t_1 = x + (y - (y * (z / t)));
	double tmp;
	if (t <= -4.4e+30) {
		tmp = t_1;
	} else if (t <= -1e-69) {
		tmp = x + (y * (z / (a - t)));
	} else if (t <= 2.15e-100) {
		tmp = x + ((z * y) / (a - t));
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8) :: t_1
    real(8) :: tmp
    t_1 = x + (y - (y * (z / t)))
    if (t <= (-4.4d+30)) then
        tmp = t_1
    else if (t <= (-1d-69)) then
        tmp = x + (y * (z / (a - t)))
    else if (t <= 2.15d-100) then
        tmp = x + ((z * y) / (a - t))
    else
        tmp = t_1
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a) {
	double t_1 = x + (y - (y * (z / t)));
	double tmp;
	if (t <= -4.4e+30) {
		tmp = t_1;
	} else if (t <= -1e-69) {
		tmp = x + (y * (z / (a - t)));
	} else if (t <= 2.15e-100) {
		tmp = x + ((z * y) / (a - t));
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a):
	t_1 = x + (y - (y * (z / t)))
	tmp = 0
	if t <= -4.4e+30:
		tmp = t_1
	elif t <= -1e-69:
		tmp = x + (y * (z / (a - t)))
	elif t <= 2.15e-100:
		tmp = x + ((z * y) / (a - t))
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a)
	t_1 = Float64(x + Float64(y - Float64(y * Float64(z / t))))
	tmp = 0.0
	if (t <= -4.4e+30)
		tmp = t_1;
	elseif (t <= -1e-69)
		tmp = Float64(x + Float64(y * Float64(z / Float64(a - t))));
	elseif (t <= 2.15e-100)
		tmp = Float64(x + Float64(Float64(z * y) / Float64(a - t)));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a)
	t_1 = x + (y - (y * (z / t)));
	tmp = 0.0;
	if (t <= -4.4e+30)
		tmp = t_1;
	elseif (t <= -1e-69)
		tmp = x + (y * (z / (a - t)));
	elseif (t <= 2.15e-100)
		tmp = x + ((z * y) / (a - t));
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(x + N[(y - N[(y * N[(z / t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t, -4.4e+30], t$95$1, If[LessEqual[t, -1e-69], N[(x + N[(y * N[(z / N[(a - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[t, 2.15e-100], N[(x + N[(N[(z * y), $MachinePrecision] / N[(a - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := x + \left(y - y \cdot \frac{z}{t}\right)\\
\mathbf{if}\;t \leq -4.4 \cdot 10^{+30}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;t \leq -1 \cdot 10^{-69}:\\
\;\;\;\;x + y \cdot \frac{z}{a - t}\\

\mathbf{elif}\;t \leq 2.15 \cdot 10^{-100}:\\
\;\;\;\;x + \frac{z \cdot y}{a - t}\\

\mathbf{else}:\\
\;\;\;\;t\_1\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if t < -4.4e30 or 2.14999999999999999e-100 < t

    1. Initial program 99.9%

      \[x + y \cdot \frac{z - t}{a - t} \]
    2. Add Preprocessing
    3. Taylor expanded in a around 0 64.0%

      \[\leadsto \color{blue}{x + -1 \cdot \frac{y \cdot \left(z - t\right)}{t}} \]
    4. Step-by-step derivation
      1. +-commutative64.0%

        \[\leadsto \color{blue}{-1 \cdot \frac{y \cdot \left(z - t\right)}{t} + x} \]
      2. associate-*r/64.0%

        \[\leadsto \color{blue}{\frac{-1 \cdot \left(y \cdot \left(z - t\right)\right)}{t}} + x \]
      3. mul-1-neg64.0%

        \[\leadsto \frac{\color{blue}{-y \cdot \left(z - t\right)}}{t} + x \]
      4. *-commutative64.0%

        \[\leadsto \frac{-\color{blue}{\left(z - t\right) \cdot y}}{t} + x \]
      5. distribute-rgt-neg-out64.0%

        \[\leadsto \frac{\color{blue}{\left(z - t\right) \cdot \left(-y\right)}}{t} + x \]
    5. Simplified64.0%

      \[\leadsto \color{blue}{\frac{\left(z - t\right) \cdot \left(-y\right)}{t} + x} \]
    6. Taylor expanded in z around 0 77.1%

      \[\leadsto \color{blue}{\left(y + -1 \cdot \frac{y \cdot z}{t}\right)} + x \]
    7. Step-by-step derivation
      1. mul-1-neg77.1%

        \[\leadsto \left(y + \color{blue}{\left(-\frac{y \cdot z}{t}\right)}\right) + x \]
      2. unsub-neg77.1%

        \[\leadsto \color{blue}{\left(y - \frac{y \cdot z}{t}\right)} + x \]
      3. associate-/l*86.0%

        \[\leadsto \left(y - \color{blue}{y \cdot \frac{z}{t}}\right) + x \]
    8. Simplified86.0%

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

    if -4.4e30 < t < -9.9999999999999996e-70

    1. Initial program 99.8%

      \[x + y \cdot \frac{z - t}{a - t} \]
    2. Add Preprocessing
    3. Taylor expanded in z around inf 69.7%

      \[\leadsto x + \color{blue}{\frac{y \cdot z}{a - t}} \]
    4. Step-by-step derivation
      1. associate-/l*79.6%

        \[\leadsto x + \color{blue}{y \cdot \frac{z}{a - t}} \]
    5. Simplified79.6%

      \[\leadsto x + \color{blue}{y \cdot \frac{z}{a - t}} \]

    if -9.9999999999999996e-70 < t < 2.14999999999999999e-100

    1. Initial program 91.2%

      \[x + y \cdot \frac{z - t}{a - t} \]
    2. Add Preprocessing
    3. Taylor expanded in z around inf 95.1%

      \[\leadsto x + \color{blue}{\frac{y \cdot z}{a - t}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification89.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -4.4 \cdot 10^{+30}:\\ \;\;\;\;x + \left(y - y \cdot \frac{z}{t}\right)\\ \mathbf{elif}\;t \leq -1 \cdot 10^{-69}:\\ \;\;\;\;x + y \cdot \frac{z}{a - t}\\ \mathbf{elif}\;t \leq 2.15 \cdot 10^{-100}:\\ \;\;\;\;x + \frac{z \cdot y}{a - t}\\ \mathbf{else}:\\ \;\;\;\;x + \left(y - y \cdot \frac{z}{t}\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 7: 77.0% accurate, 0.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t \leq -5.4 \cdot 10^{+102}:\\ \;\;\;\;x + y\\ \mathbf{elif}\;t \leq -6.8 \cdot 10^{-5}:\\ \;\;\;\;x - \frac{z \cdot y}{t}\\ \mathbf{elif}\;t \leq 8.2 \cdot 10^{-81}:\\ \;\;\;\;x + \frac{z}{\frac{a}{y}}\\ \mathbf{else}:\\ \;\;\;\;x + y\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (if (<= t -5.4e+102)
   (+ x y)
   (if (<= t -6.8e-5)
     (- x (/ (* z y) t))
     (if (<= t 8.2e-81) (+ x (/ z (/ a y))) (+ x y)))))
double code(double x, double y, double z, double t, double a) {
	double tmp;
	if (t <= -5.4e+102) {
		tmp = x + y;
	} else if (t <= -6.8e-5) {
		tmp = x - ((z * y) / t);
	} else if (t <= 8.2e-81) {
		tmp = x + (z / (a / y));
	} else {
		tmp = x + y;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8) :: tmp
    if (t <= (-5.4d+102)) then
        tmp = x + y
    else if (t <= (-6.8d-5)) then
        tmp = x - ((z * y) / t)
    else if (t <= 8.2d-81) then
        tmp = x + (z / (a / y))
    else
        tmp = x + y
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a) {
	double tmp;
	if (t <= -5.4e+102) {
		tmp = x + y;
	} else if (t <= -6.8e-5) {
		tmp = x - ((z * y) / t);
	} else if (t <= 8.2e-81) {
		tmp = x + (z / (a / y));
	} else {
		tmp = x + y;
	}
	return tmp;
}
def code(x, y, z, t, a):
	tmp = 0
	if t <= -5.4e+102:
		tmp = x + y
	elif t <= -6.8e-5:
		tmp = x - ((z * y) / t)
	elif t <= 8.2e-81:
		tmp = x + (z / (a / y))
	else:
		tmp = x + y
	return tmp
function code(x, y, z, t, a)
	tmp = 0.0
	if (t <= -5.4e+102)
		tmp = Float64(x + y);
	elseif (t <= -6.8e-5)
		tmp = Float64(x - Float64(Float64(z * y) / t));
	elseif (t <= 8.2e-81)
		tmp = Float64(x + Float64(z / Float64(a / y)));
	else
		tmp = Float64(x + y);
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a)
	tmp = 0.0;
	if (t <= -5.4e+102)
		tmp = x + y;
	elseif (t <= -6.8e-5)
		tmp = x - ((z * y) / t);
	elseif (t <= 8.2e-81)
		tmp = x + (z / (a / y));
	else
		tmp = x + y;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_] := If[LessEqual[t, -5.4e+102], N[(x + y), $MachinePrecision], If[LessEqual[t, -6.8e-5], N[(x - N[(N[(z * y), $MachinePrecision] / t), $MachinePrecision]), $MachinePrecision], If[LessEqual[t, 8.2e-81], N[(x + N[(z / N[(a / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + y), $MachinePrecision]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t \leq -5.4 \cdot 10^{+102}:\\
\;\;\;\;x + y\\

\mathbf{elif}\;t \leq -6.8 \cdot 10^{-5}:\\
\;\;\;\;x - \frac{z \cdot y}{t}\\

\mathbf{elif}\;t \leq 8.2 \cdot 10^{-81}:\\
\;\;\;\;x + \frac{z}{\frac{a}{y}}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if t < -5.4000000000000002e102 or 8.19999999999999968e-81 < t

    1. Initial program 99.9%

      \[x + y \cdot \frac{z - t}{a - t} \]
    2. Add Preprocessing
    3. Taylor expanded in t around inf 77.7%

      \[\leadsto \color{blue}{x + y} \]
    4. Step-by-step derivation
      1. +-commutative77.7%

        \[\leadsto \color{blue}{y + x} \]
    5. Simplified77.7%

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

    if -5.4000000000000002e102 < t < -6.7999999999999999e-5

    1. Initial program 99.9%

      \[x + y \cdot \frac{z - t}{a - t} \]
    2. Add Preprocessing
    3. Taylor expanded in z around inf 81.9%

      \[\leadsto x + \color{blue}{\frac{y \cdot z}{a - t}} \]
    4. Step-by-step derivation
      1. associate-/l*81.8%

        \[\leadsto x + \color{blue}{y \cdot \frac{z}{a - t}} \]
    5. Simplified81.8%

      \[\leadsto x + \color{blue}{y \cdot \frac{z}{a - t}} \]
    6. Taylor expanded in a around 0 77.6%

      \[\leadsto \color{blue}{x + -1 \cdot \frac{y \cdot z}{t}} \]
    7. Step-by-step derivation
      1. mul-1-neg77.6%

        \[\leadsto x + \color{blue}{\left(-\frac{y \cdot z}{t}\right)} \]
      2. unsub-neg77.6%

        \[\leadsto \color{blue}{x - \frac{y \cdot z}{t}} \]
      3. associate-/l*77.5%

        \[\leadsto x - \color{blue}{y \cdot \frac{z}{t}} \]
    8. Simplified77.5%

      \[\leadsto \color{blue}{x - y \cdot \frac{z}{t}} \]
    9. Taylor expanded in x around 0 77.6%

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

    if -6.7999999999999999e-5 < t < 8.19999999999999968e-81

    1. Initial program 92.4%

      \[x + y \cdot \frac{z - t}{a - t} \]
    2. Add Preprocessing
    3. Taylor expanded in z around inf 91.7%

      \[\leadsto x + \color{blue}{\frac{y \cdot z}{a - t}} \]
    4. Step-by-step derivation
      1. associate-/l*88.4%

        \[\leadsto x + \color{blue}{y \cdot \frac{z}{a - t}} \]
    5. Simplified88.4%

      \[\leadsto x + \color{blue}{y \cdot \frac{z}{a - t}} \]
    6. Step-by-step derivation
      1. associate-*r/91.7%

        \[\leadsto x + \color{blue}{\frac{y \cdot z}{a - t}} \]
      2. clear-num91.7%

        \[\leadsto x + \color{blue}{\frac{1}{\frac{a - t}{y \cdot z}}} \]
    7. Applied egg-rr91.7%

      \[\leadsto x + \color{blue}{\frac{1}{\frac{a - t}{y \cdot z}}} \]
    8. Taylor expanded in a around inf 76.0%

      \[\leadsto x + \color{blue}{\frac{y \cdot z}{a}} \]
    9. Step-by-step derivation
      1. *-commutative76.0%

        \[\leadsto x + \frac{\color{blue}{z \cdot y}}{a} \]
      2. associate-*r/79.3%

        \[\leadsto x + \color{blue}{z \cdot \frac{y}{a}} \]
    10. Simplified79.3%

      \[\leadsto x + \color{blue}{z \cdot \frac{y}{a}} \]
    11. Taylor expanded in z around 0 76.0%

      \[\leadsto x + \color{blue}{\frac{y \cdot z}{a}} \]
    12. Step-by-step derivation
      1. associate-/l*76.8%

        \[\leadsto x + \color{blue}{y \cdot \frac{z}{a}} \]
      2. *-commutative76.8%

        \[\leadsto x + \color{blue}{\frac{z}{a} \cdot y} \]
      3. associate-/r/79.3%

        \[\leadsto x + \color{blue}{\frac{z}{\frac{a}{y}}} \]
    13. Simplified79.3%

      \[\leadsto x + \color{blue}{\frac{z}{\frac{a}{y}}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification78.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -5.4 \cdot 10^{+102}:\\ \;\;\;\;x + y\\ \mathbf{elif}\;t \leq -6.8 \cdot 10^{-5}:\\ \;\;\;\;x - \frac{z \cdot y}{t}\\ \mathbf{elif}\;t \leq 8.2 \cdot 10^{-81}:\\ \;\;\;\;x + \frac{z}{\frac{a}{y}}\\ \mathbf{else}:\\ \;\;\;\;x + y\\ \end{array} \]
  5. Add Preprocessing

Alternative 8: 77.3% accurate, 0.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t \leq -3 \cdot 10^{+103}:\\ \;\;\;\;x + y\\ \mathbf{elif}\;t \leq -0.0065:\\ \;\;\;\;x - y \cdot \frac{z}{t}\\ \mathbf{elif}\;t \leq 8.8 \cdot 10^{-71}:\\ \;\;\;\;x + \frac{z}{\frac{a}{y}}\\ \mathbf{else}:\\ \;\;\;\;x + y\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (if (<= t -3e+103)
   (+ x y)
   (if (<= t -0.0065)
     (- x (* y (/ z t)))
     (if (<= t 8.8e-71) (+ x (/ z (/ a y))) (+ x y)))))
double code(double x, double y, double z, double t, double a) {
	double tmp;
	if (t <= -3e+103) {
		tmp = x + y;
	} else if (t <= -0.0065) {
		tmp = x - (y * (z / t));
	} else if (t <= 8.8e-71) {
		tmp = x + (z / (a / y));
	} else {
		tmp = x + y;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8) :: tmp
    if (t <= (-3d+103)) then
        tmp = x + y
    else if (t <= (-0.0065d0)) then
        tmp = x - (y * (z / t))
    else if (t <= 8.8d-71) then
        tmp = x + (z / (a / y))
    else
        tmp = x + y
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a) {
	double tmp;
	if (t <= -3e+103) {
		tmp = x + y;
	} else if (t <= -0.0065) {
		tmp = x - (y * (z / t));
	} else if (t <= 8.8e-71) {
		tmp = x + (z / (a / y));
	} else {
		tmp = x + y;
	}
	return tmp;
}
def code(x, y, z, t, a):
	tmp = 0
	if t <= -3e+103:
		tmp = x + y
	elif t <= -0.0065:
		tmp = x - (y * (z / t))
	elif t <= 8.8e-71:
		tmp = x + (z / (a / y))
	else:
		tmp = x + y
	return tmp
function code(x, y, z, t, a)
	tmp = 0.0
	if (t <= -3e+103)
		tmp = Float64(x + y);
	elseif (t <= -0.0065)
		tmp = Float64(x - Float64(y * Float64(z / t)));
	elseif (t <= 8.8e-71)
		tmp = Float64(x + Float64(z / Float64(a / y)));
	else
		tmp = Float64(x + y);
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a)
	tmp = 0.0;
	if (t <= -3e+103)
		tmp = x + y;
	elseif (t <= -0.0065)
		tmp = x - (y * (z / t));
	elseif (t <= 8.8e-71)
		tmp = x + (z / (a / y));
	else
		tmp = x + y;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_] := If[LessEqual[t, -3e+103], N[(x + y), $MachinePrecision], If[LessEqual[t, -0.0065], N[(x - N[(y * N[(z / t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[t, 8.8e-71], N[(x + N[(z / N[(a / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + y), $MachinePrecision]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t \leq -3 \cdot 10^{+103}:\\
\;\;\;\;x + y\\

\mathbf{elif}\;t \leq -0.0065:\\
\;\;\;\;x - y \cdot \frac{z}{t}\\

\mathbf{elif}\;t \leq 8.8 \cdot 10^{-71}:\\
\;\;\;\;x + \frac{z}{\frac{a}{y}}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if t < -3e103 or 8.7999999999999999e-71 < t

    1. Initial program 99.9%

      \[x + y \cdot \frac{z - t}{a - t} \]
    2. Add Preprocessing
    3. Taylor expanded in t around inf 79.0%

      \[\leadsto \color{blue}{x + y} \]
    4. Step-by-step derivation
      1. +-commutative79.0%

        \[\leadsto \color{blue}{y + x} \]
    5. Simplified79.0%

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

    if -3e103 < t < -0.0064999999999999997

    1. Initial program 99.9%

      \[x + y \cdot \frac{z - t}{a - t} \]
    2. Add Preprocessing
    3. Taylor expanded in z around inf 81.9%

      \[\leadsto x + \color{blue}{\frac{y \cdot z}{a - t}} \]
    4. Step-by-step derivation
      1. associate-/l*81.8%

        \[\leadsto x + \color{blue}{y \cdot \frac{z}{a - t}} \]
    5. Simplified81.8%

      \[\leadsto x + \color{blue}{y \cdot \frac{z}{a - t}} \]
    6. Taylor expanded in a around 0 77.6%

      \[\leadsto \color{blue}{x + -1 \cdot \frac{y \cdot z}{t}} \]
    7. Step-by-step derivation
      1. mul-1-neg77.6%

        \[\leadsto x + \color{blue}{\left(-\frac{y \cdot z}{t}\right)} \]
      2. unsub-neg77.6%

        \[\leadsto \color{blue}{x - \frac{y \cdot z}{t}} \]
      3. associate-/l*77.5%

        \[\leadsto x - \color{blue}{y \cdot \frac{z}{t}} \]
    8. Simplified77.5%

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

    if -0.0064999999999999997 < t < 8.7999999999999999e-71

    1. Initial program 92.6%

      \[x + y \cdot \frac{z - t}{a - t} \]
    2. Add Preprocessing
    3. Taylor expanded in z around inf 91.0%

      \[\leadsto x + \color{blue}{\frac{y \cdot z}{a - t}} \]
    4. Step-by-step derivation
      1. associate-/l*87.8%

        \[\leadsto x + \color{blue}{y \cdot \frac{z}{a - t}} \]
    5. Simplified87.8%

      \[\leadsto x + \color{blue}{y \cdot \frac{z}{a - t}} \]
    6. Step-by-step derivation
      1. associate-*r/91.0%

        \[\leadsto x + \color{blue}{\frac{y \cdot z}{a - t}} \]
      2. clear-num91.0%

        \[\leadsto x + \color{blue}{\frac{1}{\frac{a - t}{y \cdot z}}} \]
    7. Applied egg-rr91.0%

      \[\leadsto x + \color{blue}{\frac{1}{\frac{a - t}{y \cdot z}}} \]
    8. Taylor expanded in a around inf 75.6%

      \[\leadsto x + \color{blue}{\frac{y \cdot z}{a}} \]
    9. Step-by-step derivation
      1. *-commutative75.6%

        \[\leadsto x + \frac{\color{blue}{z \cdot y}}{a} \]
      2. associate-*r/78.8%

        \[\leadsto x + \color{blue}{z \cdot \frac{y}{a}} \]
    10. Simplified78.8%

      \[\leadsto x + \color{blue}{z \cdot \frac{y}{a}} \]
    11. Taylor expanded in z around 0 75.6%

      \[\leadsto x + \color{blue}{\frac{y \cdot z}{a}} \]
    12. Step-by-step derivation
      1. associate-/l*76.3%

        \[\leadsto x + \color{blue}{y \cdot \frac{z}{a}} \]
      2. *-commutative76.3%

        \[\leadsto x + \color{blue}{\frac{z}{a} \cdot y} \]
      3. associate-/r/78.8%

        \[\leadsto x + \color{blue}{\frac{z}{\frac{a}{y}}} \]
    13. Simplified78.8%

      \[\leadsto x + \color{blue}{\frac{z}{\frac{a}{y}}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification78.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -3 \cdot 10^{+103}:\\ \;\;\;\;x + y\\ \mathbf{elif}\;t \leq -0.0065:\\ \;\;\;\;x - y \cdot \frac{z}{t}\\ \mathbf{elif}\;t \leq 8.8 \cdot 10^{-71}:\\ \;\;\;\;x + \frac{z}{\frac{a}{y}}\\ \mathbf{else}:\\ \;\;\;\;x + y\\ \end{array} \]
  5. Add Preprocessing

Alternative 9: 76.6% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t \leq -1.45 \cdot 10^{-24} \lor \neg \left(t \leq 6 \cdot 10^{-87}\right):\\ \;\;\;\;x + y\\ \mathbf{else}:\\ \;\;\;\;x + \frac{z}{\frac{a}{y}}\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (if (or (<= t -1.45e-24) (not (<= t 6e-87))) (+ x y) (+ x (/ z (/ a y)))))
double code(double x, double y, double z, double t, double a) {
	double tmp;
	if ((t <= -1.45e-24) || !(t <= 6e-87)) {
		tmp = x + y;
	} else {
		tmp = x + (z / (a / y));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8) :: tmp
    if ((t <= (-1.45d-24)) .or. (.not. (t <= 6d-87))) then
        tmp = x + y
    else
        tmp = x + (z / (a / y))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a) {
	double tmp;
	if ((t <= -1.45e-24) || !(t <= 6e-87)) {
		tmp = x + y;
	} else {
		tmp = x + (z / (a / y));
	}
	return tmp;
}
def code(x, y, z, t, a):
	tmp = 0
	if (t <= -1.45e-24) or not (t <= 6e-87):
		tmp = x + y
	else:
		tmp = x + (z / (a / y))
	return tmp
function code(x, y, z, t, a)
	tmp = 0.0
	if ((t <= -1.45e-24) || !(t <= 6e-87))
		tmp = Float64(x + y);
	else
		tmp = Float64(x + Float64(z / Float64(a / y)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a)
	tmp = 0.0;
	if ((t <= -1.45e-24) || ~((t <= 6e-87)))
		tmp = x + y;
	else
		tmp = x + (z / (a / y));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_] := If[Or[LessEqual[t, -1.45e-24], N[Not[LessEqual[t, 6e-87]], $MachinePrecision]], N[(x + y), $MachinePrecision], N[(x + N[(z / N[(a / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t \leq -1.45 \cdot 10^{-24} \lor \neg \left(t \leq 6 \cdot 10^{-87}\right):\\
\;\;\;\;x + y\\

\mathbf{else}:\\
\;\;\;\;x + \frac{z}{\frac{a}{y}}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if t < -1.4499999999999999e-24 or 6.00000000000000033e-87 < t

    1. Initial program 99.9%

      \[x + y \cdot \frac{z - t}{a - t} \]
    2. Add Preprocessing
    3. Taylor expanded in t around inf 74.8%

      \[\leadsto \color{blue}{x + y} \]
    4. Step-by-step derivation
      1. +-commutative74.8%

        \[\leadsto \color{blue}{y + x} \]
    5. Simplified74.8%

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

    if -1.4499999999999999e-24 < t < 6.00000000000000033e-87

    1. Initial program 92.1%

      \[x + y \cdot \frac{z - t}{a - t} \]
    2. Add Preprocessing
    3. Taylor expanded in z around inf 92.1%

      \[\leadsto x + \color{blue}{\frac{y \cdot z}{a - t}} \]
    4. Step-by-step derivation
      1. associate-/l*88.7%

        \[\leadsto x + \color{blue}{y \cdot \frac{z}{a - t}} \]
    5. Simplified88.7%

      \[\leadsto x + \color{blue}{y \cdot \frac{z}{a - t}} \]
    6. Step-by-step derivation
      1. associate-*r/92.1%

        \[\leadsto x + \color{blue}{\frac{y \cdot z}{a - t}} \]
      2. clear-num92.2%

        \[\leadsto x + \color{blue}{\frac{1}{\frac{a - t}{y \cdot z}}} \]
    7. Applied egg-rr92.2%

      \[\leadsto x + \color{blue}{\frac{1}{\frac{a - t}{y \cdot z}}} \]
    8. Taylor expanded in a around inf 76.6%

      \[\leadsto x + \color{blue}{\frac{y \cdot z}{a}} \]
    9. Step-by-step derivation
      1. *-commutative76.6%

        \[\leadsto x + \frac{\color{blue}{z \cdot y}}{a} \]
      2. associate-*r/80.0%

        \[\leadsto x + \color{blue}{z \cdot \frac{y}{a}} \]
    10. Simplified80.0%

      \[\leadsto x + \color{blue}{z \cdot \frac{y}{a}} \]
    11. Taylor expanded in z around 0 76.6%

      \[\leadsto x + \color{blue}{\frac{y \cdot z}{a}} \]
    12. Step-by-step derivation
      1. associate-/l*77.4%

        \[\leadsto x + \color{blue}{y \cdot \frac{z}{a}} \]
      2. *-commutative77.4%

        \[\leadsto x + \color{blue}{\frac{z}{a} \cdot y} \]
      3. associate-/r/80.1%

        \[\leadsto x + \color{blue}{\frac{z}{\frac{a}{y}}} \]
    13. Simplified80.1%

      \[\leadsto x + \color{blue}{\frac{z}{\frac{a}{y}}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification77.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -1.45 \cdot 10^{-24} \lor \neg \left(t \leq 6 \cdot 10^{-87}\right):\\ \;\;\;\;x + y\\ \mathbf{else}:\\ \;\;\;\;x + \frac{z}{\frac{a}{y}}\\ \end{array} \]
  5. Add Preprocessing

Alternative 10: 76.4% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t \leq -2.5 \cdot 10^{-28} \lor \neg \left(t \leq 8.5 \cdot 10^{-89}\right):\\ \;\;\;\;x + y\\ \mathbf{else}:\\ \;\;\;\;x + z \cdot \frac{y}{a}\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (if (or (<= t -2.5e-28) (not (<= t 8.5e-89))) (+ x y) (+ x (* z (/ y a)))))
double code(double x, double y, double z, double t, double a) {
	double tmp;
	if ((t <= -2.5e-28) || !(t <= 8.5e-89)) {
		tmp = x + y;
	} else {
		tmp = x + (z * (y / a));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8) :: tmp
    if ((t <= (-2.5d-28)) .or. (.not. (t <= 8.5d-89))) then
        tmp = x + y
    else
        tmp = x + (z * (y / a))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a) {
	double tmp;
	if ((t <= -2.5e-28) || !(t <= 8.5e-89)) {
		tmp = x + y;
	} else {
		tmp = x + (z * (y / a));
	}
	return tmp;
}
def code(x, y, z, t, a):
	tmp = 0
	if (t <= -2.5e-28) or not (t <= 8.5e-89):
		tmp = x + y
	else:
		tmp = x + (z * (y / a))
	return tmp
function code(x, y, z, t, a)
	tmp = 0.0
	if ((t <= -2.5e-28) || !(t <= 8.5e-89))
		tmp = Float64(x + y);
	else
		tmp = Float64(x + Float64(z * Float64(y / a)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a)
	tmp = 0.0;
	if ((t <= -2.5e-28) || ~((t <= 8.5e-89)))
		tmp = x + y;
	else
		tmp = x + (z * (y / a));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_] := If[Or[LessEqual[t, -2.5e-28], N[Not[LessEqual[t, 8.5e-89]], $MachinePrecision]], N[(x + y), $MachinePrecision], N[(x + N[(z * N[(y / a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t \leq -2.5 \cdot 10^{-28} \lor \neg \left(t \leq 8.5 \cdot 10^{-89}\right):\\
\;\;\;\;x + y\\

\mathbf{else}:\\
\;\;\;\;x + z \cdot \frac{y}{a}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if t < -2.5000000000000001e-28 or 8.49999999999999937e-89 < t

    1. Initial program 99.9%

      \[x + y \cdot \frac{z - t}{a - t} \]
    2. Add Preprocessing
    3. Taylor expanded in t around inf 74.8%

      \[\leadsto \color{blue}{x + y} \]
    4. Step-by-step derivation
      1. +-commutative74.8%

        \[\leadsto \color{blue}{y + x} \]
    5. Simplified74.8%

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

    if -2.5000000000000001e-28 < t < 8.49999999999999937e-89

    1. Initial program 92.1%

      \[x + y \cdot \frac{z - t}{a - t} \]
    2. Add Preprocessing
    3. Taylor expanded in z around inf 92.1%

      \[\leadsto x + \color{blue}{\frac{y \cdot z}{a - t}} \]
    4. Step-by-step derivation
      1. associate-/l*88.7%

        \[\leadsto x + \color{blue}{y \cdot \frac{z}{a - t}} \]
    5. Simplified88.7%

      \[\leadsto x + \color{blue}{y \cdot \frac{z}{a - t}} \]
    6. Step-by-step derivation
      1. associate-*r/92.1%

        \[\leadsto x + \color{blue}{\frac{y \cdot z}{a - t}} \]
      2. clear-num92.2%

        \[\leadsto x + \color{blue}{\frac{1}{\frac{a - t}{y \cdot z}}} \]
    7. Applied egg-rr92.2%

      \[\leadsto x + \color{blue}{\frac{1}{\frac{a - t}{y \cdot z}}} \]
    8. Taylor expanded in a around inf 76.6%

      \[\leadsto x + \color{blue}{\frac{y \cdot z}{a}} \]
    9. Step-by-step derivation
      1. *-commutative76.6%

        \[\leadsto x + \frac{\color{blue}{z \cdot y}}{a} \]
      2. associate-*r/80.0%

        \[\leadsto x + \color{blue}{z \cdot \frac{y}{a}} \]
    10. Simplified80.0%

      \[\leadsto x + \color{blue}{z \cdot \frac{y}{a}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification77.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -2.5 \cdot 10^{-28} \lor \neg \left(t \leq 8.5 \cdot 10^{-89}\right):\\ \;\;\;\;x + y\\ \mathbf{else}:\\ \;\;\;\;x + z \cdot \frac{y}{a}\\ \end{array} \]
  5. Add Preprocessing

Alternative 11: 63.2% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t \leq -1.2 \cdot 10^{+30} \lor \neg \left(t \leq 3.2 \cdot 10^{-165}\right):\\ \;\;\;\;x + y\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (if (or (<= t -1.2e+30) (not (<= t 3.2e-165))) (+ x y) x))
double code(double x, double y, double z, double t, double a) {
	double tmp;
	if ((t <= -1.2e+30) || !(t <= 3.2e-165)) {
		tmp = x + y;
	} else {
		tmp = x;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8) :: tmp
    if ((t <= (-1.2d+30)) .or. (.not. (t <= 3.2d-165))) then
        tmp = x + y
    else
        tmp = x
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a) {
	double tmp;
	if ((t <= -1.2e+30) || !(t <= 3.2e-165)) {
		tmp = x + y;
	} else {
		tmp = x;
	}
	return tmp;
}
def code(x, y, z, t, a):
	tmp = 0
	if (t <= -1.2e+30) or not (t <= 3.2e-165):
		tmp = x + y
	else:
		tmp = x
	return tmp
function code(x, y, z, t, a)
	tmp = 0.0
	if ((t <= -1.2e+30) || !(t <= 3.2e-165))
		tmp = Float64(x + y);
	else
		tmp = x;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a)
	tmp = 0.0;
	if ((t <= -1.2e+30) || ~((t <= 3.2e-165)))
		tmp = x + y;
	else
		tmp = x;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_] := If[Or[LessEqual[t, -1.2e+30], N[Not[LessEqual[t, 3.2e-165]], $MachinePrecision]], N[(x + y), $MachinePrecision], x]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t \leq -1.2 \cdot 10^{+30} \lor \neg \left(t \leq 3.2 \cdot 10^{-165}\right):\\
\;\;\;\;x + y\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if t < -1.2e30 or 3.20000000000000013e-165 < t

    1. Initial program 99.9%

      \[x + y \cdot \frac{z - t}{a - t} \]
    2. Add Preprocessing
    3. Taylor expanded in t around inf 73.3%

      \[\leadsto \color{blue}{x + y} \]
    4. Step-by-step derivation
      1. +-commutative73.3%

        \[\leadsto \color{blue}{y + x} \]
    5. Simplified73.3%

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

    if -1.2e30 < t < 3.20000000000000013e-165

    1. Initial program 92.0%

      \[x + y \cdot \frac{z - t}{a - t} \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 51.4%

      \[\leadsto \color{blue}{x} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification64.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -1.2 \cdot 10^{+30} \lor \neg \left(t \leq 3.2 \cdot 10^{-165}\right):\\ \;\;\;\;x + y\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \]
  5. Add Preprocessing

Alternative 12: 60.1% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -2 \cdot 10^{+193}:\\ \;\;\;\;z \cdot \frac{y}{-t}\\ \mathbf{else}:\\ \;\;\;\;x + y\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (if (<= z -2e+193) (* z (/ y (- t))) (+ x y)))
double code(double x, double y, double z, double t, double a) {
	double tmp;
	if (z <= -2e+193) {
		tmp = z * (y / -t);
	} else {
		tmp = x + y;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8) :: tmp
    if (z <= (-2d+193)) then
        tmp = z * (y / -t)
    else
        tmp = x + y
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a) {
	double tmp;
	if (z <= -2e+193) {
		tmp = z * (y / -t);
	} else {
		tmp = x + y;
	}
	return tmp;
}
def code(x, y, z, t, a):
	tmp = 0
	if z <= -2e+193:
		tmp = z * (y / -t)
	else:
		tmp = x + y
	return tmp
function code(x, y, z, t, a)
	tmp = 0.0
	if (z <= -2e+193)
		tmp = Float64(z * Float64(y / Float64(-t)));
	else
		tmp = Float64(x + y);
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a)
	tmp = 0.0;
	if (z <= -2e+193)
		tmp = z * (y / -t);
	else
		tmp = x + y;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_] := If[LessEqual[z, -2e+193], N[(z * N[(y / (-t)), $MachinePrecision]), $MachinePrecision], N[(x + y), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -2 \cdot 10^{+193}:\\
\;\;\;\;z \cdot \frac{y}{-t}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -2.00000000000000013e193

    1. Initial program 93.6%

      \[x + y \cdot \frac{z - t}{a - t} \]
    2. Add Preprocessing
    3. Taylor expanded in z around inf 78.3%

      \[\leadsto x + \color{blue}{\frac{y \cdot z}{a - t}} \]
    4. Step-by-step derivation
      1. associate-/l*90.4%

        \[\leadsto x + \color{blue}{y \cdot \frac{z}{a - t}} \]
    5. Simplified90.4%

      \[\leadsto x + \color{blue}{y \cdot \frac{z}{a - t}} \]
    6. Taylor expanded in a around 0 55.6%

      \[\leadsto \color{blue}{x + -1 \cdot \frac{y \cdot z}{t}} \]
    7. Step-by-step derivation
      1. mul-1-neg55.6%

        \[\leadsto x + \color{blue}{\left(-\frac{y \cdot z}{t}\right)} \]
      2. unsub-neg55.6%

        \[\leadsto \color{blue}{x - \frac{y \cdot z}{t}} \]
      3. associate-/l*55.2%

        \[\leadsto x - \color{blue}{y \cdot \frac{z}{t}} \]
    8. Simplified55.2%

      \[\leadsto \color{blue}{x - y \cdot \frac{z}{t}} \]
    9. Taylor expanded in x around 0 45.9%

      \[\leadsto \color{blue}{-1 \cdot \frac{y \cdot z}{t}} \]
    10. Step-by-step derivation
      1. mul-1-neg45.9%

        \[\leadsto \color{blue}{-\frac{y \cdot z}{t}} \]
      2. associate-*r/48.8%

        \[\leadsto -\color{blue}{y \cdot \frac{z}{t}} \]
      3. distribute-rgt-neg-out48.8%

        \[\leadsto \color{blue}{y \cdot \left(-\frac{z}{t}\right)} \]
      4. distribute-neg-frac48.8%

        \[\leadsto y \cdot \color{blue}{\frac{-z}{t}} \]
    11. Simplified48.8%

      \[\leadsto \color{blue}{y \cdot \frac{-z}{t}} \]
    12. Taylor expanded in y around 0 45.9%

      \[\leadsto \color{blue}{-1 \cdot \frac{y \cdot z}{t}} \]
    13. Step-by-step derivation
      1. mul-1-neg45.9%

        \[\leadsto \color{blue}{-\frac{y \cdot z}{t}} \]
      2. distribute-neg-frac245.9%

        \[\leadsto \color{blue}{\frac{y \cdot z}{-t}} \]
      3. *-commutative45.9%

        \[\leadsto \frac{\color{blue}{z \cdot y}}{-t} \]
      4. associate-*r/51.9%

        \[\leadsto \color{blue}{z \cdot \frac{y}{-t}} \]
    14. Simplified51.9%

      \[\leadsto \color{blue}{z \cdot \frac{y}{-t}} \]

    if -2.00000000000000013e193 < z

    1. Initial program 97.0%

      \[x + y \cdot \frac{z - t}{a - t} \]
    2. Add Preprocessing
    3. Taylor expanded in t around inf 65.6%

      \[\leadsto \color{blue}{x + y} \]
    4. Step-by-step derivation
      1. +-commutative65.6%

        \[\leadsto \color{blue}{y + x} \]
    5. Simplified65.6%

      \[\leadsto \color{blue}{y + x} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification64.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -2 \cdot 10^{+193}:\\ \;\;\;\;z \cdot \frac{y}{-t}\\ \mathbf{else}:\\ \;\;\;\;x + y\\ \end{array} \]
  5. Add Preprocessing

Alternative 13: 95.8% accurate, 1.0× speedup?

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

\\
x + \left(z - t\right) \cdot \frac{y}{a - t}
\end{array}
Derivation
  1. Initial program 96.6%

    \[x + y \cdot \frac{z - t}{a - t} \]
  2. Step-by-step derivation
    1. associate-*r/84.2%

      \[\leadsto x + \color{blue}{\frac{y \cdot \left(z - t\right)}{a - t}} \]
  3. Simplified84.2%

    \[\leadsto \color{blue}{x + \frac{y \cdot \left(z - t\right)}{a - t}} \]
  4. Add Preprocessing
  5. Step-by-step derivation
    1. *-commutative84.2%

      \[\leadsto x + \frac{\color{blue}{\left(z - t\right) \cdot y}}{a - t} \]
    2. associate-/l*97.2%

      \[\leadsto x + \color{blue}{\left(z - t\right) \cdot \frac{y}{a - t}} \]
  6. Applied egg-rr97.2%

    \[\leadsto x + \color{blue}{\left(z - t\right) \cdot \frac{y}{a - t}} \]
  7. Add Preprocessing

Alternative 14: 50.8% accurate, 11.0× speedup?

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

\\
x
\end{array}
Derivation
  1. Initial program 96.6%

    \[x + y \cdot \frac{z - t}{a - t} \]
  2. Add Preprocessing
  3. Taylor expanded in x around inf 46.3%

    \[\leadsto \color{blue}{x} \]
  4. Add Preprocessing

Developer target: 99.3% accurate, 0.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := x + y \cdot \frac{z - t}{a - t}\\ \mathbf{if}\;y < -8.508084860551241 \cdot 10^{-17}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;y < 2.894426862792089 \cdot 10^{-49}:\\ \;\;\;\;x + \left(y \cdot \left(z - t\right)\right) \cdot \frac{1}{a - t}\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (let* ((t_1 (+ x (* y (/ (- z t) (- a t))))))
   (if (< y -8.508084860551241e-17)
     t_1
     (if (< y 2.894426862792089e-49)
       (+ x (* (* y (- z t)) (/ 1.0 (- a t))))
       t_1))))
double code(double x, double y, double z, double t, double a) {
	double t_1 = x + (y * ((z - t) / (a - t)));
	double tmp;
	if (y < -8.508084860551241e-17) {
		tmp = t_1;
	} else if (y < 2.894426862792089e-49) {
		tmp = x + ((y * (z - t)) * (1.0 / (a - t)));
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8) :: t_1
    real(8) :: tmp
    t_1 = x + (y * ((z - t) / (a - t)))
    if (y < (-8.508084860551241d-17)) then
        tmp = t_1
    else if (y < 2.894426862792089d-49) then
        tmp = x + ((y * (z - t)) * (1.0d0 / (a - t)))
    else
        tmp = t_1
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a) {
	double t_1 = x + (y * ((z - t) / (a - t)));
	double tmp;
	if (y < -8.508084860551241e-17) {
		tmp = t_1;
	} else if (y < 2.894426862792089e-49) {
		tmp = x + ((y * (z - t)) * (1.0 / (a - t)));
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a):
	t_1 = x + (y * ((z - t) / (a - t)))
	tmp = 0
	if y < -8.508084860551241e-17:
		tmp = t_1
	elif y < 2.894426862792089e-49:
		tmp = x + ((y * (z - t)) * (1.0 / (a - t)))
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a)
	t_1 = Float64(x + Float64(y * Float64(Float64(z - t) / Float64(a - t))))
	tmp = 0.0
	if (y < -8.508084860551241e-17)
		tmp = t_1;
	elseif (y < 2.894426862792089e-49)
		tmp = Float64(x + Float64(Float64(y * Float64(z - t)) * Float64(1.0 / Float64(a - t))));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a)
	t_1 = x + (y * ((z - t) / (a - t)));
	tmp = 0.0;
	if (y < -8.508084860551241e-17)
		tmp = t_1;
	elseif (y < 2.894426862792089e-49)
		tmp = x + ((y * (z - t)) * (1.0 / (a - t)));
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(x + N[(y * N[(N[(z - t), $MachinePrecision] / N[(a - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[Less[y, -8.508084860551241e-17], t$95$1, If[Less[y, 2.894426862792089e-49], N[(x + N[(N[(y * N[(z - t), $MachinePrecision]), $MachinePrecision] * N[(1.0 / N[(a - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := x + y \cdot \frac{z - t}{a - t}\\
\mathbf{if}\;y < -8.508084860551241 \cdot 10^{-17}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;y < 2.894426862792089 \cdot 10^{-49}:\\
\;\;\;\;x + \left(y \cdot \left(z - t\right)\right) \cdot \frac{1}{a - t}\\

\mathbf{else}:\\
\;\;\;\;t\_1\\


\end{array}
\end{array}

Reproduce

?
herbie shell --seed 2024107 
(FPCore (x y z t a)
  :name "Graphics.Rendering.Plot.Render.Plot.Axis:renderAxisLine from plot-0.2.3.4, B"
  :precision binary64

  :alt
  (if (< y -8.508084860551241e-17) (+ x (* y (/ (- z t) (- a t)))) (if (< y 2.894426862792089e-49) (+ x (* (* y (- z t)) (/ 1.0 (- a t)))) (+ x (* y (/ (- z t) (- a t))))))

  (+ x (* y (/ (- z t) (- a t)))))