Graphics.Rendering.Plot.Render.Plot.Axis:renderAxisTicks from plot-0.2.3.4, A

Percentage Accurate: 85.6% → 98.2%
Time: 8.7s
Alternatives: 12
Speedup: 0.8×

Specification

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

\\
x + \frac{y \cdot \left(z - t\right)}{z - a}
\end{array}

Sampling outcomes in binary64 precision:

Local Percentage Accuracy vs ?

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

Accuracy vs Speed?

Herbie found 12 alternatives:

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

Initial Program: 85.6% accurate, 1.0× speedup?

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

\\
x + \frac{y \cdot \left(z - t\right)}{z - a}
\end{array}

Alternative 1: 98.2% accurate, 0.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\frac{\left(z - t\right) \cdot y}{z - a} + x \leq -5 \cdot 10^{+108}:\\ \;\;\;\;\frac{\frac{y}{z - a}}{\frac{1}{z - t}} + x\\ \mathbf{else}:\\ \;\;\;\;\frac{y}{\frac{z - a}{z - t}} + x\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (if (<= (+ (/ (* (- z t) y) (- z a)) x) -5e+108)
   (+ (/ (/ y (- z a)) (/ 1.0 (- z t))) x)
   (+ (/ y (/ (- z a) (- z t))) x)))
double code(double x, double y, double z, double t, double a) {
	double tmp;
	if (((((z - t) * y) / (z - a)) + x) <= -5e+108) {
		tmp = ((y / (z - a)) / (1.0 / (z - t))) + x;
	} else {
		tmp = (y / ((z - a) / (z - t))) + 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 (((((z - t) * y) / (z - a)) + x) <= (-5d+108)) then
        tmp = ((y / (z - a)) / (1.0d0 / (z - t))) + x
    else
        tmp = (y / ((z - a) / (z - t))) + x
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a) {
	double tmp;
	if (((((z - t) * y) / (z - a)) + x) <= -5e+108) {
		tmp = ((y / (z - a)) / (1.0 / (z - t))) + x;
	} else {
		tmp = (y / ((z - a) / (z - t))) + x;
	}
	return tmp;
}
def code(x, y, z, t, a):
	tmp = 0
	if ((((z - t) * y) / (z - a)) + x) <= -5e+108:
		tmp = ((y / (z - a)) / (1.0 / (z - t))) + x
	else:
		tmp = (y / ((z - a) / (z - t))) + x
	return tmp
function code(x, y, z, t, a)
	tmp = 0.0
	if (Float64(Float64(Float64(Float64(z - t) * y) / Float64(z - a)) + x) <= -5e+108)
		tmp = Float64(Float64(Float64(y / Float64(z - a)) / Float64(1.0 / Float64(z - t))) + x);
	else
		tmp = Float64(Float64(y / Float64(Float64(z - a) / Float64(z - t))) + x);
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a)
	tmp = 0.0;
	if (((((z - t) * y) / (z - a)) + x) <= -5e+108)
		tmp = ((y / (z - a)) / (1.0 / (z - t))) + x;
	else
		tmp = (y / ((z - a) / (z - t))) + x;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_] := If[LessEqual[N[(N[(N[(N[(z - t), $MachinePrecision] * y), $MachinePrecision] / N[(z - a), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision], -5e+108], N[(N[(N[(y / N[(z - a), $MachinePrecision]), $MachinePrecision] / N[(1.0 / N[(z - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision], N[(N[(y / N[(N[(z - a), $MachinePrecision] / N[(z - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;\frac{\left(z - t\right) \cdot y}{z - a} + x \leq -5 \cdot 10^{+108}:\\
\;\;\;\;\frac{\frac{y}{z - a}}{\frac{1}{z - t}} + x\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (+.f64 x (/.f64 (*.f64 y (-.f64 z t)) (-.f64 z a))) < -4.99999999999999991e108

    1. Initial program 82.2%

      \[x + \frac{y \cdot \left(z - t\right)}{z - a} \]
    2. Add Preprocessing
    3. Step-by-step derivation
      1. lift-/.f64N/A

        \[\leadsto x + \color{blue}{\frac{y \cdot \left(z - t\right)}{z - a}} \]
      2. lift-*.f64N/A

        \[\leadsto x + \frac{\color{blue}{y \cdot \left(z - t\right)}}{z - a} \]
      3. *-commutativeN/A

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

        \[\leadsto x + \color{blue}{\left(z - t\right) \cdot \frac{y}{z - a}} \]
      5. lift--.f64N/A

        \[\leadsto x + \color{blue}{\left(z - t\right)} \cdot \frac{y}{z - a} \]
      6. flip--N/A

        \[\leadsto x + \color{blue}{\frac{z \cdot z - t \cdot t}{z + t}} \cdot \frac{y}{z - a} \]
      7. clear-numN/A

        \[\leadsto x + \color{blue}{\frac{1}{\frac{z + t}{z \cdot z - t \cdot t}}} \cdot \frac{y}{z - a} \]
      8. associate-*l/N/A

        \[\leadsto x + \color{blue}{\frac{1 \cdot \frac{y}{z - a}}{\frac{z + t}{z \cdot z - t \cdot t}}} \]
      9. lower-/.f64N/A

        \[\leadsto x + \color{blue}{\frac{1 \cdot \frac{y}{z - a}}{\frac{z + t}{z \cdot z - t \cdot t}}} \]
      10. lower-*.f64N/A

        \[\leadsto x + \frac{\color{blue}{1 \cdot \frac{y}{z - a}}}{\frac{z + t}{z \cdot z - t \cdot t}} \]
      11. lower-/.f64N/A

        \[\leadsto x + \frac{1 \cdot \color{blue}{\frac{y}{z - a}}}{\frac{z + t}{z \cdot z - t \cdot t}} \]
      12. clear-numN/A

        \[\leadsto x + \frac{1 \cdot \frac{y}{z - a}}{\color{blue}{\frac{1}{\frac{z \cdot z - t \cdot t}{z + t}}}} \]
      13. flip--N/A

        \[\leadsto x + \frac{1 \cdot \frac{y}{z - a}}{\frac{1}{\color{blue}{z - t}}} \]
      14. lift--.f64N/A

        \[\leadsto x + \frac{1 \cdot \frac{y}{z - a}}{\frac{1}{\color{blue}{z - t}}} \]
      15. lower-/.f6499.9

        \[\leadsto x + \frac{1 \cdot \frac{y}{z - a}}{\color{blue}{\frac{1}{z - t}}} \]
    4. Applied rewrites99.9%

      \[\leadsto x + \color{blue}{\frac{1 \cdot \frac{y}{z - a}}{\frac{1}{z - t}}} \]
    5. Step-by-step derivation
      1. lift-*.f64N/A

        \[\leadsto x + \frac{\color{blue}{1 \cdot \frac{y}{z - a}}}{\frac{1}{z - t}} \]
      2. *-lft-identity99.9

        \[\leadsto x + \frac{\color{blue}{\frac{y}{z - a}}}{\frac{1}{z - t}} \]
    6. Applied rewrites99.9%

      \[\leadsto x + \frac{\color{blue}{\frac{y}{z - a}}}{\frac{1}{z - t}} \]

    if -4.99999999999999991e108 < (+.f64 x (/.f64 (*.f64 y (-.f64 z t)) (-.f64 z a)))

    1. Initial program 90.0%

      \[x + \frac{y \cdot \left(z - t\right)}{z - a} \]
    2. Add Preprocessing
    3. Step-by-step derivation
      1. lift-/.f64N/A

        \[\leadsto x + \color{blue}{\frac{y \cdot \left(z - t\right)}{z - a}} \]
      2. lift-*.f64N/A

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

        \[\leadsto x + \color{blue}{y \cdot \frac{z - t}{z - a}} \]
      4. clear-numN/A

        \[\leadsto x + y \cdot \color{blue}{\frac{1}{\frac{z - a}{z - t}}} \]
      5. un-div-invN/A

        \[\leadsto x + \color{blue}{\frac{y}{\frac{z - a}{z - t}}} \]
      6. lower-/.f64N/A

        \[\leadsto x + \color{blue}{\frac{y}{\frac{z - a}{z - t}}} \]
      7. lower-/.f6499.9

        \[\leadsto x + \frac{y}{\color{blue}{\frac{z - a}{z - t}}} \]
    4. Applied rewrites99.9%

      \[\leadsto x + \color{blue}{\frac{y}{\frac{z - a}{z - t}}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification99.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{\left(z - t\right) \cdot y}{z - a} + x \leq -5 \cdot 10^{+108}:\\ \;\;\;\;\frac{\frac{y}{z - a}}{\frac{1}{z - t}} + x\\ \mathbf{else}:\\ \;\;\;\;\frac{y}{\frac{z - a}{z - t}} + x\\ \end{array} \]
  5. Add Preprocessing

Alternative 2: 81.6% accurate, 0.2× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{y}{z - a} \cdot \left(z - t\right)\\ t_2 := \frac{\left(z - t\right) \cdot y}{z - a}\\ \mathbf{if}\;t\_2 \leq -4 \cdot 10^{+76}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;t\_2 \leq 10^{-173}:\\ \;\;\;\;\frac{z \cdot y}{z - a} + x\\ \mathbf{elif}\;t\_2 \leq 2 \cdot 10^{+111}:\\ \;\;\;\;\mathsf{fma}\left(\frac{z - t}{z}, y, x\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (let* ((t_1 (* (/ y (- z a)) (- z t))) (t_2 (/ (* (- z t) y) (- z a))))
   (if (<= t_2 -4e+76)
     t_1
     (if (<= t_2 1e-173)
       (+ (/ (* z y) (- z a)) x)
       (if (<= t_2 2e+111) (fma (/ (- z t) z) y x) t_1)))))
double code(double x, double y, double z, double t, double a) {
	double t_1 = (y / (z - a)) * (z - t);
	double t_2 = ((z - t) * y) / (z - a);
	double tmp;
	if (t_2 <= -4e+76) {
		tmp = t_1;
	} else if (t_2 <= 1e-173) {
		tmp = ((z * y) / (z - a)) + x;
	} else if (t_2 <= 2e+111) {
		tmp = fma(((z - t) / z), y, x);
	} else {
		tmp = t_1;
	}
	return tmp;
}
function code(x, y, z, t, a)
	t_1 = Float64(Float64(y / Float64(z - a)) * Float64(z - t))
	t_2 = Float64(Float64(Float64(z - t) * y) / Float64(z - a))
	tmp = 0.0
	if (t_2 <= -4e+76)
		tmp = t_1;
	elseif (t_2 <= 1e-173)
		tmp = Float64(Float64(Float64(z * y) / Float64(z - a)) + x);
	elseif (t_2 <= 2e+111)
		tmp = fma(Float64(Float64(z - t) / z), y, x);
	else
		tmp = t_1;
	end
	return tmp
end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(N[(y / N[(z - a), $MachinePrecision]), $MachinePrecision] * N[(z - t), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(N[(N[(z - t), $MachinePrecision] * y), $MachinePrecision] / N[(z - a), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$2, -4e+76], t$95$1, If[LessEqual[t$95$2, 1e-173], N[(N[(N[(z * y), $MachinePrecision] / N[(z - a), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision], If[LessEqual[t$95$2, 2e+111], N[(N[(N[(z - t), $MachinePrecision] / z), $MachinePrecision] * y + x), $MachinePrecision], t$95$1]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \frac{y}{z - a} \cdot \left(z - t\right)\\
t_2 := \frac{\left(z - t\right) \cdot y}{z - a}\\
\mathbf{if}\;t\_2 \leq -4 \cdot 10^{+76}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;t\_2 \leq 10^{-173}:\\
\;\;\;\;\frac{z \cdot y}{z - a} + x\\

\mathbf{elif}\;t\_2 \leq 2 \cdot 10^{+111}:\\
\;\;\;\;\mathsf{fma}\left(\frac{z - t}{z}, y, x\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if (/.f64 (*.f64 y (-.f64 z t)) (-.f64 z a)) < -4.0000000000000002e76 or 1.99999999999999991e111 < (/.f64 (*.f64 y (-.f64 z t)) (-.f64 z a))

    1. Initial program 65.8%

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

      \[\leadsto \color{blue}{y \cdot \left(\frac{z}{z - a} - \frac{t}{z - a}\right)} \]
    4. Step-by-step derivation
      1. distribute-lft-out--N/A

        \[\leadsto \color{blue}{y \cdot \frac{z}{z - a} - y \cdot \frac{t}{z - a}} \]
      2. associate-/l*N/A

        \[\leadsto \color{blue}{\frac{y \cdot z}{z - a}} - y \cdot \frac{t}{z - a} \]
      3. *-commutativeN/A

        \[\leadsto \frac{\color{blue}{z \cdot y}}{z - a} - y \cdot \frac{t}{z - a} \]
      4. associate-/l*N/A

        \[\leadsto \color{blue}{z \cdot \frac{y}{z - a}} - y \cdot \frac{t}{z - a} \]
      5. associate-/l*N/A

        \[\leadsto z \cdot \frac{y}{z - a} - \color{blue}{\frac{y \cdot t}{z - a}} \]
      6. *-commutativeN/A

        \[\leadsto z \cdot \frac{y}{z - a} - \frac{\color{blue}{t \cdot y}}{z - a} \]
      7. associate-/l*N/A

        \[\leadsto z \cdot \frac{y}{z - a} - \color{blue}{t \cdot \frac{y}{z - a}} \]
      8. distribute-rgt-out--N/A

        \[\leadsto \color{blue}{\frac{y}{z - a} \cdot \left(z - t\right)} \]
      9. lower-*.f64N/A

        \[\leadsto \color{blue}{\frac{y}{z - a} \cdot \left(z - t\right)} \]
      10. lower-/.f64N/A

        \[\leadsto \color{blue}{\frac{y}{z - a}} \cdot \left(z - t\right) \]
      11. lower--.f64N/A

        \[\leadsto \frac{y}{\color{blue}{z - a}} \cdot \left(z - t\right) \]
      12. lower--.f6484.9

        \[\leadsto \frac{y}{z - a} \cdot \color{blue}{\left(z - t\right)} \]
    5. Applied rewrites84.9%

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

    if -4.0000000000000002e76 < (/.f64 (*.f64 y (-.f64 z t)) (-.f64 z a)) < 1e-173

    1. Initial program 99.2%

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

      \[\leadsto x + \frac{\color{blue}{y \cdot z}}{z - a} \]
    4. Step-by-step derivation
      1. *-commutativeN/A

        \[\leadsto x + \frac{\color{blue}{z \cdot y}}{z - a} \]
      2. lower-*.f6493.5

        \[\leadsto x + \frac{\color{blue}{z \cdot y}}{z - a} \]
    5. Applied rewrites93.5%

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

    if 1e-173 < (/.f64 (*.f64 y (-.f64 z t)) (-.f64 z a)) < 1.99999999999999991e111

    1. Initial program 99.8%

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

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

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

        \[\leadsto \color{blue}{y \cdot \frac{z - t}{z}} + x \]
      3. *-commutativeN/A

        \[\leadsto \color{blue}{\frac{z - t}{z} \cdot y} + x \]
      4. lower-fma.f64N/A

        \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z - t}{z}, y, x\right)} \]
      5. lower-/.f64N/A

        \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{z - t}{z}}, y, x\right) \]
      6. lower--.f6489.8

        \[\leadsto \mathsf{fma}\left(\frac{\color{blue}{z - t}}{z}, y, x\right) \]
    5. Applied rewrites89.8%

      \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z - t}{z}, y, x\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification89.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{\left(z - t\right) \cdot y}{z - a} \leq -4 \cdot 10^{+76}:\\ \;\;\;\;\frac{y}{z - a} \cdot \left(z - t\right)\\ \mathbf{elif}\;\frac{\left(z - t\right) \cdot y}{z - a} \leq 10^{-173}:\\ \;\;\;\;\frac{z \cdot y}{z - a} + x\\ \mathbf{elif}\;\frac{\left(z - t\right) \cdot y}{z - a} \leq 2 \cdot 10^{+111}:\\ \;\;\;\;\mathsf{fma}\left(\frac{z - t}{z}, y, x\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{y}{z - a} \cdot \left(z - t\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 3: 81.6% accurate, 0.2× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{y}{z - a} \cdot \left(z - t\right)\\ t_2 := \frac{\left(z - t\right) \cdot y}{z - a}\\ \mathbf{if}\;t\_2 \leq -4 \cdot 10^{+76}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;t\_2 \leq 10^{-173}:\\ \;\;\;\;\mathsf{fma}\left(\frac{z}{z - a}, y, x\right)\\ \mathbf{elif}\;t\_2 \leq 2 \cdot 10^{+111}:\\ \;\;\;\;\mathsf{fma}\left(\frac{z - t}{z}, y, x\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (let* ((t_1 (* (/ y (- z a)) (- z t))) (t_2 (/ (* (- z t) y) (- z a))))
   (if (<= t_2 -4e+76)
     t_1
     (if (<= t_2 1e-173)
       (fma (/ z (- z a)) y x)
       (if (<= t_2 2e+111) (fma (/ (- z t) z) y x) t_1)))))
double code(double x, double y, double z, double t, double a) {
	double t_1 = (y / (z - a)) * (z - t);
	double t_2 = ((z - t) * y) / (z - a);
	double tmp;
	if (t_2 <= -4e+76) {
		tmp = t_1;
	} else if (t_2 <= 1e-173) {
		tmp = fma((z / (z - a)), y, x);
	} else if (t_2 <= 2e+111) {
		tmp = fma(((z - t) / z), y, x);
	} else {
		tmp = t_1;
	}
	return tmp;
}
function code(x, y, z, t, a)
	t_1 = Float64(Float64(y / Float64(z - a)) * Float64(z - t))
	t_2 = Float64(Float64(Float64(z - t) * y) / Float64(z - a))
	tmp = 0.0
	if (t_2 <= -4e+76)
		tmp = t_1;
	elseif (t_2 <= 1e-173)
		tmp = fma(Float64(z / Float64(z - a)), y, x);
	elseif (t_2 <= 2e+111)
		tmp = fma(Float64(Float64(z - t) / z), y, x);
	else
		tmp = t_1;
	end
	return tmp
end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(N[(y / N[(z - a), $MachinePrecision]), $MachinePrecision] * N[(z - t), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(N[(N[(z - t), $MachinePrecision] * y), $MachinePrecision] / N[(z - a), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$2, -4e+76], t$95$1, If[LessEqual[t$95$2, 1e-173], N[(N[(z / N[(z - a), $MachinePrecision]), $MachinePrecision] * y + x), $MachinePrecision], If[LessEqual[t$95$2, 2e+111], N[(N[(N[(z - t), $MachinePrecision] / z), $MachinePrecision] * y + x), $MachinePrecision], t$95$1]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \frac{y}{z - a} \cdot \left(z - t\right)\\
t_2 := \frac{\left(z - t\right) \cdot y}{z - a}\\
\mathbf{if}\;t\_2 \leq -4 \cdot 10^{+76}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;t\_2 \leq 10^{-173}:\\
\;\;\;\;\mathsf{fma}\left(\frac{z}{z - a}, y, x\right)\\

\mathbf{elif}\;t\_2 \leq 2 \cdot 10^{+111}:\\
\;\;\;\;\mathsf{fma}\left(\frac{z - t}{z}, y, x\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if (/.f64 (*.f64 y (-.f64 z t)) (-.f64 z a)) < -4.0000000000000002e76 or 1.99999999999999991e111 < (/.f64 (*.f64 y (-.f64 z t)) (-.f64 z a))

    1. Initial program 65.8%

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

      \[\leadsto \color{blue}{y \cdot \left(\frac{z}{z - a} - \frac{t}{z - a}\right)} \]
    4. Step-by-step derivation
      1. distribute-lft-out--N/A

        \[\leadsto \color{blue}{y \cdot \frac{z}{z - a} - y \cdot \frac{t}{z - a}} \]
      2. associate-/l*N/A

        \[\leadsto \color{blue}{\frac{y \cdot z}{z - a}} - y \cdot \frac{t}{z - a} \]
      3. *-commutativeN/A

        \[\leadsto \frac{\color{blue}{z \cdot y}}{z - a} - y \cdot \frac{t}{z - a} \]
      4. associate-/l*N/A

        \[\leadsto \color{blue}{z \cdot \frac{y}{z - a}} - y \cdot \frac{t}{z - a} \]
      5. associate-/l*N/A

        \[\leadsto z \cdot \frac{y}{z - a} - \color{blue}{\frac{y \cdot t}{z - a}} \]
      6. *-commutativeN/A

        \[\leadsto z \cdot \frac{y}{z - a} - \frac{\color{blue}{t \cdot y}}{z - a} \]
      7. associate-/l*N/A

        \[\leadsto z \cdot \frac{y}{z - a} - \color{blue}{t \cdot \frac{y}{z - a}} \]
      8. distribute-rgt-out--N/A

        \[\leadsto \color{blue}{\frac{y}{z - a} \cdot \left(z - t\right)} \]
      9. lower-*.f64N/A

        \[\leadsto \color{blue}{\frac{y}{z - a} \cdot \left(z - t\right)} \]
      10. lower-/.f64N/A

        \[\leadsto \color{blue}{\frac{y}{z - a}} \cdot \left(z - t\right) \]
      11. lower--.f64N/A

        \[\leadsto \frac{y}{\color{blue}{z - a}} \cdot \left(z - t\right) \]
      12. lower--.f6484.9

        \[\leadsto \frac{y}{z - a} \cdot \color{blue}{\left(z - t\right)} \]
    5. Applied rewrites84.9%

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

    if -4.0000000000000002e76 < (/.f64 (*.f64 y (-.f64 z t)) (-.f64 z a)) < 1e-173

    1. Initial program 99.2%

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

      \[\leadsto \color{blue}{x + \frac{y \cdot z}{z - a}} \]
    4. Step-by-step derivation
      1. +-commutativeN/A

        \[\leadsto \color{blue}{\frac{y \cdot z}{z - a} + x} \]
      2. associate-/l*N/A

        \[\leadsto \color{blue}{y \cdot \frac{z}{z - a}} + x \]
      3. *-commutativeN/A

        \[\leadsto \color{blue}{\frac{z}{z - a} \cdot y} + x \]
      4. lower-fma.f64N/A

        \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z}{z - a}, y, x\right)} \]
      5. lower-/.f64N/A

        \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{z}{z - a}}, y, x\right) \]
      6. lower--.f6493.5

        \[\leadsto \mathsf{fma}\left(\frac{z}{\color{blue}{z - a}}, y, x\right) \]
    5. Applied rewrites93.5%

      \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z}{z - a}, y, x\right)} \]

    if 1e-173 < (/.f64 (*.f64 y (-.f64 z t)) (-.f64 z a)) < 1.99999999999999991e111

    1. Initial program 99.8%

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

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

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

        \[\leadsto \color{blue}{y \cdot \frac{z - t}{z}} + x \]
      3. *-commutativeN/A

        \[\leadsto \color{blue}{\frac{z - t}{z} \cdot y} + x \]
      4. lower-fma.f64N/A

        \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z - t}{z}, y, x\right)} \]
      5. lower-/.f64N/A

        \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{z - t}{z}}, y, x\right) \]
      6. lower--.f6489.8

        \[\leadsto \mathsf{fma}\left(\frac{\color{blue}{z - t}}{z}, y, x\right) \]
    5. Applied rewrites89.8%

      \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z - t}{z}, y, x\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification89.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{\left(z - t\right) \cdot y}{z - a} \leq -4 \cdot 10^{+76}:\\ \;\;\;\;\frac{y}{z - a} \cdot \left(z - t\right)\\ \mathbf{elif}\;\frac{\left(z - t\right) \cdot y}{z - a} \leq 10^{-173}:\\ \;\;\;\;\mathsf{fma}\left(\frac{z}{z - a}, y, x\right)\\ \mathbf{elif}\;\frac{\left(z - t\right) \cdot y}{z - a} \leq 2 \cdot 10^{+111}:\\ \;\;\;\;\mathsf{fma}\left(\frac{z - t}{z}, y, x\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{y}{z - a} \cdot \left(z - t\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 4: 96.8% accurate, 0.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{y}{z - a} \cdot \left(z - t\right)\\ t_2 := \frac{\left(z - t\right) \cdot y}{z - a}\\ \mathbf{if}\;t\_2 \leq -\infty:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;t\_2 \leq 2 \cdot 10^{+303}:\\ \;\;\;\;t\_2 + x\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (let* ((t_1 (* (/ y (- z a)) (- z t))) (t_2 (/ (* (- z t) y) (- z a))))
   (if (<= t_2 (- INFINITY)) t_1 (if (<= t_2 2e+303) (+ t_2 x) t_1))))
double code(double x, double y, double z, double t, double a) {
	double t_1 = (y / (z - a)) * (z - t);
	double t_2 = ((z - t) * y) / (z - a);
	double tmp;
	if (t_2 <= -((double) INFINITY)) {
		tmp = t_1;
	} else if (t_2 <= 2e+303) {
		tmp = t_2 + x;
	} else {
		tmp = t_1;
	}
	return tmp;
}
public static double code(double x, double y, double z, double t, double a) {
	double t_1 = (y / (z - a)) * (z - t);
	double t_2 = ((z - t) * y) / (z - a);
	double tmp;
	if (t_2 <= -Double.POSITIVE_INFINITY) {
		tmp = t_1;
	} else if (t_2 <= 2e+303) {
		tmp = t_2 + x;
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a):
	t_1 = (y / (z - a)) * (z - t)
	t_2 = ((z - t) * y) / (z - a)
	tmp = 0
	if t_2 <= -math.inf:
		tmp = t_1
	elif t_2 <= 2e+303:
		tmp = t_2 + x
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a)
	t_1 = Float64(Float64(y / Float64(z - a)) * Float64(z - t))
	t_2 = Float64(Float64(Float64(z - t) * y) / Float64(z - a))
	tmp = 0.0
	if (t_2 <= Float64(-Inf))
		tmp = t_1;
	elseif (t_2 <= 2e+303)
		tmp = Float64(t_2 + x);
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a)
	t_1 = (y / (z - a)) * (z - t);
	t_2 = ((z - t) * y) / (z - a);
	tmp = 0.0;
	if (t_2 <= -Inf)
		tmp = t_1;
	elseif (t_2 <= 2e+303)
		tmp = t_2 + x;
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(N[(y / N[(z - a), $MachinePrecision]), $MachinePrecision] * N[(z - t), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(N[(N[(z - t), $MachinePrecision] * y), $MachinePrecision] / N[(z - a), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$2, (-Infinity)], t$95$1, If[LessEqual[t$95$2, 2e+303], N[(t$95$2 + x), $MachinePrecision], t$95$1]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \frac{y}{z - a} \cdot \left(z - t\right)\\
t_2 := \frac{\left(z - t\right) \cdot y}{z - a}\\
\mathbf{if}\;t\_2 \leq -\infty:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;t\_2 \leq 2 \cdot 10^{+303}:\\
\;\;\;\;t\_2 + x\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (/.f64 (*.f64 y (-.f64 z t)) (-.f64 z a)) < -inf.0 or 2e303 < (/.f64 (*.f64 y (-.f64 z t)) (-.f64 z a))

    1. Initial program 45.9%

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

      \[\leadsto \color{blue}{y \cdot \left(\frac{z}{z - a} - \frac{t}{z - a}\right)} \]
    4. Step-by-step derivation
      1. distribute-lft-out--N/A

        \[\leadsto \color{blue}{y \cdot \frac{z}{z - a} - y \cdot \frac{t}{z - a}} \]
      2. associate-/l*N/A

        \[\leadsto \color{blue}{\frac{y \cdot z}{z - a}} - y \cdot \frac{t}{z - a} \]
      3. *-commutativeN/A

        \[\leadsto \frac{\color{blue}{z \cdot y}}{z - a} - y \cdot \frac{t}{z - a} \]
      4. associate-/l*N/A

        \[\leadsto \color{blue}{z \cdot \frac{y}{z - a}} - y \cdot \frac{t}{z - a} \]
      5. associate-/l*N/A

        \[\leadsto z \cdot \frac{y}{z - a} - \color{blue}{\frac{y \cdot t}{z - a}} \]
      6. *-commutativeN/A

        \[\leadsto z \cdot \frac{y}{z - a} - \frac{\color{blue}{t \cdot y}}{z - a} \]
      7. associate-/l*N/A

        \[\leadsto z \cdot \frac{y}{z - a} - \color{blue}{t \cdot \frac{y}{z - a}} \]
      8. distribute-rgt-out--N/A

        \[\leadsto \color{blue}{\frac{y}{z - a} \cdot \left(z - t\right)} \]
      9. lower-*.f64N/A

        \[\leadsto \color{blue}{\frac{y}{z - a} \cdot \left(z - t\right)} \]
      10. lower-/.f64N/A

        \[\leadsto \color{blue}{\frac{y}{z - a}} \cdot \left(z - t\right) \]
      11. lower--.f64N/A

        \[\leadsto \frac{y}{\color{blue}{z - a}} \cdot \left(z - t\right) \]
      12. lower--.f6489.6

        \[\leadsto \frac{y}{z - a} \cdot \color{blue}{\left(z - t\right)} \]
    5. Applied rewrites89.6%

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

    if -inf.0 < (/.f64 (*.f64 y (-.f64 z t)) (-.f64 z a)) < 2e303

    1. Initial program 99.4%

      \[x + \frac{y \cdot \left(z - t\right)}{z - a} \]
    2. Add Preprocessing
  3. Recombined 2 regimes into one program.
  4. Final simplification97.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{\left(z - t\right) \cdot y}{z - a} \leq -\infty:\\ \;\;\;\;\frac{y}{z - a} \cdot \left(z - t\right)\\ \mathbf{elif}\;\frac{\left(z - t\right) \cdot y}{z - a} \leq 2 \cdot 10^{+303}:\\ \;\;\;\;\frac{\left(z - t\right) \cdot y}{z - a} + x\\ \mathbf{else}:\\ \;\;\;\;\frac{y}{z - a} \cdot \left(z - t\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 5: 86.6% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \mathsf{fma}\left(\frac{z - t}{z}, y, x\right)\\ \mathbf{if}\;z \leq -1.12 \cdot 10^{+54}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq 130:\\ \;\;\;\;\frac{\left(-t\right) \cdot y}{z - a} + x\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (let* ((t_1 (fma (/ (- z t) z) y x)))
   (if (<= z -1.12e+54)
     t_1
     (if (<= z 130.0) (+ (/ (* (- t) y) (- z a)) x) t_1))))
double code(double x, double y, double z, double t, double a) {
	double t_1 = fma(((z - t) / z), y, x);
	double tmp;
	if (z <= -1.12e+54) {
		tmp = t_1;
	} else if (z <= 130.0) {
		tmp = ((-t * y) / (z - a)) + x;
	} else {
		tmp = t_1;
	}
	return tmp;
}
function code(x, y, z, t, a)
	t_1 = fma(Float64(Float64(z - t) / z), y, x)
	tmp = 0.0
	if (z <= -1.12e+54)
		tmp = t_1;
	elseif (z <= 130.0)
		tmp = Float64(Float64(Float64(Float64(-t) * y) / Float64(z - a)) + x);
	else
		tmp = t_1;
	end
	return tmp
end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(N[(N[(z - t), $MachinePrecision] / z), $MachinePrecision] * y + x), $MachinePrecision]}, If[LessEqual[z, -1.12e+54], t$95$1, If[LessEqual[z, 130.0], N[(N[(N[((-t) * y), $MachinePrecision] / N[(z - a), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision], t$95$1]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \mathsf{fma}\left(\frac{z - t}{z}, y, x\right)\\
\mathbf{if}\;z \leq -1.12 \cdot 10^{+54}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;z \leq 130:\\
\;\;\;\;\frac{\left(-t\right) \cdot y}{z - a} + x\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -1.12e54 or 130 < z

    1. Initial program 78.5%

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

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

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

        \[\leadsto \color{blue}{y \cdot \frac{z - t}{z}} + x \]
      3. *-commutativeN/A

        \[\leadsto \color{blue}{\frac{z - t}{z} \cdot y} + x \]
      4. lower-fma.f64N/A

        \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z - t}{z}, y, x\right)} \]
      5. lower-/.f64N/A

        \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{z - t}{z}}, y, x\right) \]
      6. lower--.f6494.1

        \[\leadsto \mathsf{fma}\left(\frac{\color{blue}{z - t}}{z}, y, x\right) \]
    5. Applied rewrites94.1%

      \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z - t}{z}, y, x\right)} \]

    if -1.12e54 < z < 130

    1. Initial program 94.2%

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

      \[\leadsto x + \frac{y \cdot \color{blue}{\left(-1 \cdot t\right)}}{z - a} \]
    4. Step-by-step derivation
      1. mul-1-negN/A

        \[\leadsto x + \frac{y \cdot \color{blue}{\left(\mathsf{neg}\left(t\right)\right)}}{z - a} \]
      2. lower-neg.f6485.6

        \[\leadsto x + \frac{y \cdot \color{blue}{\left(-t\right)}}{z - a} \]
    5. Applied rewrites85.6%

      \[\leadsto x + \frac{y \cdot \color{blue}{\left(-t\right)}}{z - a} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification89.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -1.12 \cdot 10^{+54}:\\ \;\;\;\;\mathsf{fma}\left(\frac{z - t}{z}, y, x\right)\\ \mathbf{elif}\;z \leq 130:\\ \;\;\;\;\frac{\left(-t\right) \cdot y}{z - a} + x\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(\frac{z - t}{z}, y, x\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 6: 80.8% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \mathsf{fma}\left(\frac{z - t}{z}, y, x\right)\\ \mathbf{if}\;z \leq -2 \cdot 10^{+53}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq 3.9 \cdot 10^{-49}:\\ \;\;\;\;\mathsf{fma}\left(\frac{y}{a}, t, x\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (let* ((t_1 (fma (/ (- z t) z) y x)))
   (if (<= z -2e+53) t_1 (if (<= z 3.9e-49) (fma (/ y a) t x) t_1))))
double code(double x, double y, double z, double t, double a) {
	double t_1 = fma(((z - t) / z), y, x);
	double tmp;
	if (z <= -2e+53) {
		tmp = t_1;
	} else if (z <= 3.9e-49) {
		tmp = fma((y / a), t, x);
	} else {
		tmp = t_1;
	}
	return tmp;
}
function code(x, y, z, t, a)
	t_1 = fma(Float64(Float64(z - t) / z), y, x)
	tmp = 0.0
	if (z <= -2e+53)
		tmp = t_1;
	elseif (z <= 3.9e-49)
		tmp = fma(Float64(y / a), t, x);
	else
		tmp = t_1;
	end
	return tmp
end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(N[(N[(z - t), $MachinePrecision] / z), $MachinePrecision] * y + x), $MachinePrecision]}, If[LessEqual[z, -2e+53], t$95$1, If[LessEqual[z, 3.9e-49], N[(N[(y / a), $MachinePrecision] * t + x), $MachinePrecision], t$95$1]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \mathsf{fma}\left(\frac{z - t}{z}, y, x\right)\\
\mathbf{if}\;z \leq -2 \cdot 10^{+53}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;z \leq 3.9 \cdot 10^{-49}:\\
\;\;\;\;\mathsf{fma}\left(\frac{y}{a}, t, x\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -2e53 or 3.90000000000000011e-49 < z

    1. Initial program 81.0%

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

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

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

        \[\leadsto \color{blue}{y \cdot \frac{z - t}{z}} + x \]
      3. *-commutativeN/A

        \[\leadsto \color{blue}{\frac{z - t}{z} \cdot y} + x \]
      4. lower-fma.f64N/A

        \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z - t}{z}, y, x\right)} \]
      5. lower-/.f64N/A

        \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{z - t}{z}}, y, x\right) \]
      6. lower--.f6490.9

        \[\leadsto \mathsf{fma}\left(\frac{\color{blue}{z - t}}{z}, y, x\right) \]
    5. Applied rewrites90.9%

      \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z - t}{z}, y, x\right)} \]

    if -2e53 < z < 3.90000000000000011e-49

    1. Initial program 93.6%

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

      \[\leadsto \color{blue}{x + \frac{t \cdot y}{a}} \]
    4. Step-by-step derivation
      1. +-commutativeN/A

        \[\leadsto \color{blue}{\frac{t \cdot y}{a} + x} \]
      2. associate-/l*N/A

        \[\leadsto \color{blue}{t \cdot \frac{y}{a}} + x \]
      3. *-commutativeN/A

        \[\leadsto \color{blue}{\frac{y}{a} \cdot t} + x \]
      4. lower-fma.f64N/A

        \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y}{a}, t, x\right)} \]
      5. lower-/.f6480.3

        \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y}{a}}, t, x\right) \]
    5. Applied rewrites80.3%

      \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y}{a}, t, x\right)} \]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 7: 81.3% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \mathsf{fma}\left(\frac{z}{z - a}, y, x\right)\\ \mathbf{if}\;z \leq -1850000000:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq 2.15 \cdot 10^{-49}:\\ \;\;\;\;\mathsf{fma}\left(\frac{y}{a}, t, x\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (let* ((t_1 (fma (/ z (- z a)) y x)))
   (if (<= z -1850000000.0) t_1 (if (<= z 2.15e-49) (fma (/ y a) t x) t_1))))
double code(double x, double y, double z, double t, double a) {
	double t_1 = fma((z / (z - a)), y, x);
	double tmp;
	if (z <= -1850000000.0) {
		tmp = t_1;
	} else if (z <= 2.15e-49) {
		tmp = fma((y / a), t, x);
	} else {
		tmp = t_1;
	}
	return tmp;
}
function code(x, y, z, t, a)
	t_1 = fma(Float64(z / Float64(z - a)), y, x)
	tmp = 0.0
	if (z <= -1850000000.0)
		tmp = t_1;
	elseif (z <= 2.15e-49)
		tmp = fma(Float64(y / a), t, x);
	else
		tmp = t_1;
	end
	return tmp
end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(N[(z / N[(z - a), $MachinePrecision]), $MachinePrecision] * y + x), $MachinePrecision]}, If[LessEqual[z, -1850000000.0], t$95$1, If[LessEqual[z, 2.15e-49], N[(N[(y / a), $MachinePrecision] * t + x), $MachinePrecision], t$95$1]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \mathsf{fma}\left(\frac{z}{z - a}, y, x\right)\\
\mathbf{if}\;z \leq -1850000000:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;z \leq 2.15 \cdot 10^{-49}:\\
\;\;\;\;\mathsf{fma}\left(\frac{y}{a}, t, x\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -1.85e9 or 2.15000000000000008e-49 < z

    1. Initial program 82.0%

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

      \[\leadsto \color{blue}{x + \frac{y \cdot z}{z - a}} \]
    4. Step-by-step derivation
      1. +-commutativeN/A

        \[\leadsto \color{blue}{\frac{y \cdot z}{z - a} + x} \]
      2. associate-/l*N/A

        \[\leadsto \color{blue}{y \cdot \frac{z}{z - a}} + x \]
      3. *-commutativeN/A

        \[\leadsto \color{blue}{\frac{z}{z - a} \cdot y} + x \]
      4. lower-fma.f64N/A

        \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z}{z - a}, y, x\right)} \]
      5. lower-/.f64N/A

        \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{z}{z - a}}, y, x\right) \]
      6. lower--.f6485.4

        \[\leadsto \mathsf{fma}\left(\frac{z}{\color{blue}{z - a}}, y, x\right) \]
    5. Applied rewrites85.4%

      \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z}{z - a}, y, x\right)} \]

    if -1.85e9 < z < 2.15000000000000008e-49

    1. Initial program 93.7%

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

      \[\leadsto \color{blue}{x + \frac{t \cdot y}{a}} \]
    4. Step-by-step derivation
      1. +-commutativeN/A

        \[\leadsto \color{blue}{\frac{t \cdot y}{a} + x} \]
      2. associate-/l*N/A

        \[\leadsto \color{blue}{t \cdot \frac{y}{a}} + x \]
      3. *-commutativeN/A

        \[\leadsto \color{blue}{\frac{y}{a} \cdot t} + x \]
      4. lower-fma.f64N/A

        \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y}{a}, t, x\right)} \]
      5. lower-/.f6481.5

        \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y}{a}}, t, x\right) \]
    5. Applied rewrites81.5%

      \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y}{a}, t, x\right)} \]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 8: 79.6% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \mathsf{fma}\left(z, \frac{y}{z - a}, x\right)\\ \mathbf{if}\;z \leq -1850000000:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq 2.15 \cdot 10^{-49}:\\ \;\;\;\;\mathsf{fma}\left(\frac{y}{a}, t, x\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (let* ((t_1 (fma z (/ y (- z a)) x)))
   (if (<= z -1850000000.0) t_1 (if (<= z 2.15e-49) (fma (/ y a) t x) t_1))))
double code(double x, double y, double z, double t, double a) {
	double t_1 = fma(z, (y / (z - a)), x);
	double tmp;
	if (z <= -1850000000.0) {
		tmp = t_1;
	} else if (z <= 2.15e-49) {
		tmp = fma((y / a), t, x);
	} else {
		tmp = t_1;
	}
	return tmp;
}
function code(x, y, z, t, a)
	t_1 = fma(z, Float64(y / Float64(z - a)), x)
	tmp = 0.0
	if (z <= -1850000000.0)
		tmp = t_1;
	elseif (z <= 2.15e-49)
		tmp = fma(Float64(y / a), t, x);
	else
		tmp = t_1;
	end
	return tmp
end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(z * N[(y / N[(z - a), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision]}, If[LessEqual[z, -1850000000.0], t$95$1, If[LessEqual[z, 2.15e-49], N[(N[(y / a), $MachinePrecision] * t + x), $MachinePrecision], t$95$1]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \mathsf{fma}\left(z, \frac{y}{z - a}, x\right)\\
\mathbf{if}\;z \leq -1850000000:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;z \leq 2.15 \cdot 10^{-49}:\\
\;\;\;\;\mathsf{fma}\left(\frac{y}{a}, t, x\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -1.85e9 or 2.15000000000000008e-49 < z

    1. Initial program 82.0%

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

      \[\leadsto \color{blue}{x + \frac{y \cdot z}{z - a}} \]
    4. Step-by-step derivation
      1. +-commutativeN/A

        \[\leadsto \color{blue}{\frac{y \cdot z}{z - a} + x} \]
      2. associate-/l*N/A

        \[\leadsto \color{blue}{y \cdot \frac{z}{z - a}} + x \]
      3. *-commutativeN/A

        \[\leadsto \color{blue}{\frac{z}{z - a} \cdot y} + x \]
      4. lower-fma.f64N/A

        \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z}{z - a}, y, x\right)} \]
      5. lower-/.f64N/A

        \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{z}{z - a}}, y, x\right) \]
      6. lower--.f6485.4

        \[\leadsto \mathsf{fma}\left(\frac{z}{\color{blue}{z - a}}, y, x\right) \]
    5. Applied rewrites85.4%

      \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z}{z - a}, y, x\right)} \]
    6. Step-by-step derivation
      1. Applied rewrites83.1%

        \[\leadsto \mathsf{fma}\left(z, \color{blue}{\frac{y}{z - a}}, x\right) \]

      if -1.85e9 < z < 2.15000000000000008e-49

      1. Initial program 93.7%

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

        \[\leadsto \color{blue}{x + \frac{t \cdot y}{a}} \]
      4. Step-by-step derivation
        1. +-commutativeN/A

          \[\leadsto \color{blue}{\frac{t \cdot y}{a} + x} \]
        2. associate-/l*N/A

          \[\leadsto \color{blue}{t \cdot \frac{y}{a}} + x \]
        3. *-commutativeN/A

          \[\leadsto \color{blue}{\frac{y}{a} \cdot t} + x \]
        4. lower-fma.f64N/A

          \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y}{a}, t, x\right)} \]
        5. lower-/.f6481.5

          \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y}{a}}, t, x\right) \]
      5. Applied rewrites81.5%

        \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y}{a}, t, x\right)} \]
    7. Recombined 2 regimes into one program.
    8. Add Preprocessing

    Alternative 9: 98.3% accurate, 0.8× speedup?

    \[\begin{array}{l} \\ \frac{y}{\frac{z - a}{z - t}} + x \end{array} \]
    (FPCore (x y z t a) :precision binary64 (+ (/ y (/ (- z a) (- z t))) x))
    double code(double x, double y, double z, double t, double a) {
    	return (y / ((z - a) / (z - t))) + 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 = (y / ((z - a) / (z - t))) + x
    end function
    
    public static double code(double x, double y, double z, double t, double a) {
    	return (y / ((z - a) / (z - t))) + x;
    }
    
    def code(x, y, z, t, a):
    	return (y / ((z - a) / (z - t))) + x
    
    function code(x, y, z, t, a)
    	return Float64(Float64(y / Float64(Float64(z - a) / Float64(z - t))) + x)
    end
    
    function tmp = code(x, y, z, t, a)
    	tmp = (y / ((z - a) / (z - t))) + x;
    end
    
    code[x_, y_, z_, t_, a_] := N[(N[(y / N[(N[(z - a), $MachinePrecision] / N[(z - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision]
    
    \begin{array}{l}
    
    \\
    \frac{y}{\frac{z - a}{z - t}} + x
    \end{array}
    
    Derivation
    1. Initial program 87.7%

      \[x + \frac{y \cdot \left(z - t\right)}{z - a} \]
    2. Add Preprocessing
    3. Step-by-step derivation
      1. lift-/.f64N/A

        \[\leadsto x + \color{blue}{\frac{y \cdot \left(z - t\right)}{z - a}} \]
      2. lift-*.f64N/A

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

        \[\leadsto x + \color{blue}{y \cdot \frac{z - t}{z - a}} \]
      4. clear-numN/A

        \[\leadsto x + y \cdot \color{blue}{\frac{1}{\frac{z - a}{z - t}}} \]
      5. un-div-invN/A

        \[\leadsto x + \color{blue}{\frac{y}{\frac{z - a}{z - t}}} \]
      6. lower-/.f64N/A

        \[\leadsto x + \color{blue}{\frac{y}{\frac{z - a}{z - t}}} \]
      7. lower-/.f6498.0

        \[\leadsto x + \frac{y}{\color{blue}{\frac{z - a}{z - t}}} \]
    4. Applied rewrites98.0%

      \[\leadsto x + \color{blue}{\frac{y}{\frac{z - a}{z - t}}} \]
    5. Final simplification98.0%

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

    Alternative 10: 76.4% accurate, 0.9× speedup?

    \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -2.3 \cdot 10^{+53}:\\ \;\;\;\;y + x\\ \mathbf{elif}\;z \leq 160:\\ \;\;\;\;\mathsf{fma}\left(\frac{y}{a}, t, x\right)\\ \mathbf{else}:\\ \;\;\;\;y + x\\ \end{array} \end{array} \]
    (FPCore (x y z t a)
     :precision binary64
     (if (<= z -2.3e+53) (+ y x) (if (<= z 160.0) (fma (/ y a) t x) (+ y x))))
    double code(double x, double y, double z, double t, double a) {
    	double tmp;
    	if (z <= -2.3e+53) {
    		tmp = y + x;
    	} else if (z <= 160.0) {
    		tmp = fma((y / a), t, x);
    	} else {
    		tmp = y + x;
    	}
    	return tmp;
    }
    
    function code(x, y, z, t, a)
    	tmp = 0.0
    	if (z <= -2.3e+53)
    		tmp = Float64(y + x);
    	elseif (z <= 160.0)
    		tmp = fma(Float64(y / a), t, x);
    	else
    		tmp = Float64(y + x);
    	end
    	return tmp
    end
    
    code[x_, y_, z_, t_, a_] := If[LessEqual[z, -2.3e+53], N[(y + x), $MachinePrecision], If[LessEqual[z, 160.0], N[(N[(y / a), $MachinePrecision] * t + x), $MachinePrecision], N[(y + x), $MachinePrecision]]]
    
    \begin{array}{l}
    
    \\
    \begin{array}{l}
    \mathbf{if}\;z \leq -2.3 \cdot 10^{+53}:\\
    \;\;\;\;y + x\\
    
    \mathbf{elif}\;z \leq 160:\\
    \;\;\;\;\mathsf{fma}\left(\frac{y}{a}, t, x\right)\\
    
    \mathbf{else}:\\
    \;\;\;\;y + x\\
    
    
    \end{array}
    \end{array}
    
    Derivation
    1. Split input into 2 regimes
    2. if z < -2.3000000000000002e53 or 160 < z

      1. Initial program 78.5%

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

        \[\leadsto \color{blue}{x + y} \]
      4. Step-by-step derivation
        1. +-commutativeN/A

          \[\leadsto \color{blue}{y + x} \]
        2. lower-+.f6481.3

          \[\leadsto \color{blue}{y + x} \]
      5. Applied rewrites81.3%

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

      if -2.3000000000000002e53 < z < 160

      1. Initial program 94.2%

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

        \[\leadsto \color{blue}{x + \frac{t \cdot y}{a}} \]
      4. Step-by-step derivation
        1. +-commutativeN/A

          \[\leadsto \color{blue}{\frac{t \cdot y}{a} + x} \]
        2. associate-/l*N/A

          \[\leadsto \color{blue}{t \cdot \frac{y}{a}} + x \]
        3. *-commutativeN/A

          \[\leadsto \color{blue}{\frac{y}{a} \cdot t} + x \]
        4. lower-fma.f64N/A

          \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y}{a}, t, x\right)} \]
        5. lower-/.f6479.0

          \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y}{a}}, t, x\right) \]
      5. Applied rewrites79.0%

        \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y}{a}, t, x\right)} \]
    3. Recombined 2 regimes into one program.
    4. Add Preprocessing

    Alternative 11: 59.7% accurate, 1.1× speedup?

    \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq 3.8 \cdot 10^{+154}:\\ \;\;\;\;y + x\\ \mathbf{else}:\\ \;\;\;\;\frac{t}{a} \cdot y\\ \end{array} \end{array} \]
    (FPCore (x y z t a)
     :precision binary64
     (if (<= y 3.8e+154) (+ y x) (* (/ t a) y)))
    double code(double x, double y, double z, double t, double a) {
    	double tmp;
    	if (y <= 3.8e+154) {
    		tmp = y + x;
    	} else {
    		tmp = (t / 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 (y <= 3.8d+154) then
            tmp = y + x
        else
            tmp = (t / 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 (y <= 3.8e+154) {
    		tmp = y + x;
    	} else {
    		tmp = (t / a) * y;
    	}
    	return tmp;
    }
    
    def code(x, y, z, t, a):
    	tmp = 0
    	if y <= 3.8e+154:
    		tmp = y + x
    	else:
    		tmp = (t / a) * y
    	return tmp
    
    function code(x, y, z, t, a)
    	tmp = 0.0
    	if (y <= 3.8e+154)
    		tmp = Float64(y + x);
    	else
    		tmp = Float64(Float64(t / a) * y);
    	end
    	return tmp
    end
    
    function tmp_2 = code(x, y, z, t, a)
    	tmp = 0.0;
    	if (y <= 3.8e+154)
    		tmp = y + x;
    	else
    		tmp = (t / a) * y;
    	end
    	tmp_2 = tmp;
    end
    
    code[x_, y_, z_, t_, a_] := If[LessEqual[y, 3.8e+154], N[(y + x), $MachinePrecision], N[(N[(t / a), $MachinePrecision] * y), $MachinePrecision]]
    
    \begin{array}{l}
    
    \\
    \begin{array}{l}
    \mathbf{if}\;y \leq 3.8 \cdot 10^{+154}:\\
    \;\;\;\;y + x\\
    
    \mathbf{else}:\\
    \;\;\;\;\frac{t}{a} \cdot y\\
    
    
    \end{array}
    \end{array}
    
    Derivation
    1. Split input into 2 regimes
    2. if y < 3.7999999999999998e154

      1. Initial program 91.1%

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

        \[\leadsto \color{blue}{x + y} \]
      4. Step-by-step derivation
        1. +-commutativeN/A

          \[\leadsto \color{blue}{y + x} \]
        2. lower-+.f6466.6

          \[\leadsto \color{blue}{y + x} \]
      5. Applied rewrites66.6%

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

      if 3.7999999999999998e154 < y

      1. Initial program 67.9%

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

        \[\leadsto \color{blue}{y \cdot \left(\frac{z}{z - a} - \frac{t}{z - a}\right)} \]
      4. Step-by-step derivation
        1. distribute-lft-out--N/A

          \[\leadsto \color{blue}{y \cdot \frac{z}{z - a} - y \cdot \frac{t}{z - a}} \]
        2. associate-/l*N/A

          \[\leadsto \color{blue}{\frac{y \cdot z}{z - a}} - y \cdot \frac{t}{z - a} \]
        3. *-commutativeN/A

          \[\leadsto \frac{\color{blue}{z \cdot y}}{z - a} - y \cdot \frac{t}{z - a} \]
        4. associate-/l*N/A

          \[\leadsto \color{blue}{z \cdot \frac{y}{z - a}} - y \cdot \frac{t}{z - a} \]
        5. associate-/l*N/A

          \[\leadsto z \cdot \frac{y}{z - a} - \color{blue}{\frac{y \cdot t}{z - a}} \]
        6. *-commutativeN/A

          \[\leadsto z \cdot \frac{y}{z - a} - \frac{\color{blue}{t \cdot y}}{z - a} \]
        7. associate-/l*N/A

          \[\leadsto z \cdot \frac{y}{z - a} - \color{blue}{t \cdot \frac{y}{z - a}} \]
        8. distribute-rgt-out--N/A

          \[\leadsto \color{blue}{\frac{y}{z - a} \cdot \left(z - t\right)} \]
        9. lower-*.f64N/A

          \[\leadsto \color{blue}{\frac{y}{z - a} \cdot \left(z - t\right)} \]
        10. lower-/.f64N/A

          \[\leadsto \color{blue}{\frac{y}{z - a}} \cdot \left(z - t\right) \]
        11. lower--.f64N/A

          \[\leadsto \frac{y}{\color{blue}{z - a}} \cdot \left(z - t\right) \]
        12. lower--.f6482.6

          \[\leadsto \frac{y}{z - a} \cdot \color{blue}{\left(z - t\right)} \]
      5. Applied rewrites82.6%

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

        \[\leadsto \frac{t \cdot y}{\color{blue}{a}} \]
      7. Step-by-step derivation
        1. Applied rewrites41.8%

          \[\leadsto \frac{y}{a} \cdot \color{blue}{t} \]
        2. Step-by-step derivation
          1. Applied rewrites46.3%

            \[\leadsto \frac{t}{a} \cdot y \]
        3. Recombined 2 regimes into one program.
        4. Add Preprocessing

        Alternative 12: 60.6% accurate, 6.5× speedup?

        \[\begin{array}{l} \\ y + x \end{array} \]
        (FPCore (x y z t a) :precision binary64 (+ y x))
        double code(double x, double y, double z, double t, double a) {
        	return y + 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 = y + x
        end function
        
        public static double code(double x, double y, double z, double t, double a) {
        	return y + x;
        }
        
        def code(x, y, z, t, a):
        	return y + x
        
        function code(x, y, z, t, a)
        	return Float64(y + x)
        end
        
        function tmp = code(x, y, z, t, a)
        	tmp = y + x;
        end
        
        code[x_, y_, z_, t_, a_] := N[(y + x), $MachinePrecision]
        
        \begin{array}{l}
        
        \\
        y + x
        \end{array}
        
        Derivation
        1. Initial program 87.7%

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

          \[\leadsto \color{blue}{x + y} \]
        4. Step-by-step derivation
          1. +-commutativeN/A

            \[\leadsto \color{blue}{y + x} \]
          2. lower-+.f6459.6

            \[\leadsto \color{blue}{y + x} \]
        5. Applied rewrites59.6%

          \[\leadsto \color{blue}{y + x} \]
        6. Add Preprocessing

        Developer Target 1: 98.3% accurate, 0.8× speedup?

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

        Reproduce

        ?
        herbie shell --seed 2024276 
        (FPCore (x y z t a)
          :name "Graphics.Rendering.Plot.Render.Plot.Axis:renderAxisTicks from plot-0.2.3.4, A"
          :precision binary64
        
          :alt
          (! :herbie-platform default (+ x (/ y (/ (- z a) (- z t)))))
        
          (+ x (/ (* y (- z t)) (- z a))))