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

Percentage Accurate: 85.4% → 97.5%
Time: 8.5s
Alternatives: 9
Speedup: 0.9×

Specification

?
\[\begin{array}{l} \\ x + \frac{y \cdot \left(z - t\right)}{a - t} \end{array} \]
(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(Float64(y * 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[(N[(y * N[(z - t), $MachinePrecision]), $MachinePrecision] / N[(a - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
x + \frac{y \cdot \left(z - t\right)}{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 9 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: 85.4% accurate, 1.0× speedup?

\[\begin{array}{l} \\ x + \frac{y \cdot \left(z - t\right)}{a - t} \end{array} \]
(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(Float64(y * 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[(N[(y * N[(z - t), $MachinePrecision]), $MachinePrecision] / N[(a - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

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

Alternative 1: 97.5% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -4 \cdot 10^{-202}:\\ \;\;\;\;\mathsf{fma}\left(\frac{y}{a - t}, z - t, x\right)\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(\frac{z - t}{a - t}, y, x\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (if (<= x -4e-202)
   (fma (/ y (- a t)) (- z t) x)
   (fma (/ (- z t) (- a t)) y x)))
double code(double x, double y, double z, double t, double a) {
	double tmp;
	if (x <= -4e-202) {
		tmp = fma((y / (a - t)), (z - t), x);
	} else {
		tmp = fma(((z - t) / (a - t)), y, x);
	}
	return tmp;
}
function code(x, y, z, t, a)
	tmp = 0.0
	if (x <= -4e-202)
		tmp = fma(Float64(y / Float64(a - t)), Float64(z - t), x);
	else
		tmp = fma(Float64(Float64(z - t) / Float64(a - t)), y, x);
	end
	return tmp
end
code[x_, y_, z_, t_, a_] := If[LessEqual[x, -4e-202], N[(N[(y / N[(a - t), $MachinePrecision]), $MachinePrecision] * N[(z - t), $MachinePrecision] + x), $MachinePrecision], N[(N[(N[(z - t), $MachinePrecision] / N[(a - t), $MachinePrecision]), $MachinePrecision] * y + x), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq -4 \cdot 10^{-202}:\\
\;\;\;\;\mathsf{fma}\left(\frac{y}{a - t}, z - t, x\right)\\

\mathbf{else}:\\
\;\;\;\;\mathsf{fma}\left(\frac{z - t}{a - t}, y, x\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < -4.0000000000000001e-202

    1. Initial program 91.2%

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

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

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

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

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

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

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

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

        \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y}{a - t}, z - t, x\right)} \]
      9. lower-/.f6499.9

        \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y}{a - t}}, z - t, x\right) \]
    4. Applied rewrites99.9%

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

    if -4.0000000000000001e-202 < x

    1. Initial program 86.4%

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

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

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

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

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

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

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

        \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z - t}{a - t}, y, x\right)} \]
      8. lower-/.f6499.9

        \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{z - t}{a - t}}, y, x\right) \]
    4. Applied rewrites99.9%

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

Alternative 2: 59.1% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\frac{\left(z - t\right) \cdot y}{a - t} \leq 10^{+87}:\\ \;\;\;\;y + x\\ \mathbf{else}:\\ \;\;\;\;\frac{z}{a} \cdot y\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (if (<= (/ (* (- z t) y) (- a t)) 1e+87) (+ y x) (* (/ z a) y)))
double code(double x, double y, double z, double t, double a) {
	double tmp;
	if ((((z - t) * y) / (a - t)) <= 1e+87) {
		tmp = y + x;
	} else {
		tmp = (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 ((((z - t) * y) / (a - t)) <= 1d+87) then
        tmp = y + x
    else
        tmp = (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 ((((z - t) * y) / (a - t)) <= 1e+87) {
		tmp = y + x;
	} else {
		tmp = (z / a) * y;
	}
	return tmp;
}
def code(x, y, z, t, a):
	tmp = 0
	if (((z - t) * y) / (a - t)) <= 1e+87:
		tmp = y + x
	else:
		tmp = (z / a) * y
	return tmp
function code(x, y, z, t, a)
	tmp = 0.0
	if (Float64(Float64(Float64(z - t) * y) / Float64(a - t)) <= 1e+87)
		tmp = Float64(y + x);
	else
		tmp = Float64(Float64(z / a) * y);
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a)
	tmp = 0.0;
	if ((((z - t) * y) / (a - t)) <= 1e+87)
		tmp = y + x;
	else
		tmp = (z / a) * y;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_] := If[LessEqual[N[(N[(N[(z - t), $MachinePrecision] * y), $MachinePrecision] / N[(a - t), $MachinePrecision]), $MachinePrecision], 1e+87], N[(y + x), $MachinePrecision], N[(N[(z / a), $MachinePrecision] * y), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;\frac{\left(z - t\right) \cdot y}{a - t} \leq 10^{+87}:\\
\;\;\;\;y + x\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (/.f64 (*.f64 y (-.f64 z t)) (-.f64 a t)) < 9.9999999999999996e86

    1. Initial program 92.2%

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

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

        \[\leadsto \color{blue}{y + x} \]
      2. lower-+.f6465.5

        \[\leadsto \color{blue}{y + x} \]
    5. Applied rewrites65.5%

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

    if 9.9999999999999996e86 < (/.f64 (*.f64 y (-.f64 z t)) (-.f64 a t))

    1. Initial program 71.3%

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

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

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

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

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

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

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

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

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

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

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

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

        \[\leadsto \frac{y}{\color{blue}{a - t}} \cdot \left(z - t\right) \]
      12. lower--.f6481.2

        \[\leadsto \frac{y}{a - t} \cdot \color{blue}{\left(z - t\right)} \]
    5. Applied rewrites81.2%

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

      \[\leadsto \frac{y \cdot z}{\color{blue}{a}} \]
    7. Step-by-step derivation
      1. Applied rewrites47.5%

        \[\leadsto \frac{z \cdot y}{\color{blue}{a}} \]
      2. Step-by-step derivation
        1. Applied rewrites55.6%

          \[\leadsto y \cdot \frac{z}{\color{blue}{a}} \]
      3. Recombined 2 regimes into one program.
      4. Final simplification63.7%

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

      Alternative 3: 87.1% accurate, 0.7× speedup?

      \[\begin{array}{l} \\ \begin{array}{l} t_1 := \mathsf{fma}\left(1 - \frac{z}{t}, y, x\right)\\ \mathbf{if}\;t \leq -3.2 \cdot 10^{+77}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;t \leq 1.9 \cdot 10^{+59}:\\ \;\;\;\;\frac{z \cdot y}{a - t} + x\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
      (FPCore (x y z t a)
       :precision binary64
       (let* ((t_1 (fma (- 1.0 (/ z t)) y x)))
         (if (<= t -3.2e+77) t_1 (if (<= t 1.9e+59) (+ (/ (* z y) (- a t)) x) t_1))))
      double code(double x, double y, double z, double t, double a) {
      	double t_1 = fma((1.0 - (z / t)), y, x);
      	double tmp;
      	if (t <= -3.2e+77) {
      		tmp = t_1;
      	} else if (t <= 1.9e+59) {
      		tmp = ((z * y) / (a - t)) + x;
      	} else {
      		tmp = t_1;
      	}
      	return tmp;
      }
      
      function code(x, y, z, t, a)
      	t_1 = fma(Float64(1.0 - Float64(z / t)), y, x)
      	tmp = 0.0
      	if (t <= -3.2e+77)
      		tmp = t_1;
      	elseif (t <= 1.9e+59)
      		tmp = Float64(Float64(Float64(z * y) / Float64(a - t)) + x);
      	else
      		tmp = t_1;
      	end
      	return tmp
      end
      
      code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(N[(1.0 - N[(z / t), $MachinePrecision]), $MachinePrecision] * y + x), $MachinePrecision]}, If[LessEqual[t, -3.2e+77], t$95$1, If[LessEqual[t, 1.9e+59], N[(N[(N[(z * y), $MachinePrecision] / N[(a - t), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision], t$95$1]]]
      
      \begin{array}{l}
      
      \\
      \begin{array}{l}
      t_1 := \mathsf{fma}\left(1 - \frac{z}{t}, y, x\right)\\
      \mathbf{if}\;t \leq -3.2 \cdot 10^{+77}:\\
      \;\;\;\;t\_1\\
      
      \mathbf{elif}\;t \leq 1.9 \cdot 10^{+59}:\\
      \;\;\;\;\frac{z \cdot y}{a - t} + x\\
      
      \mathbf{else}:\\
      \;\;\;\;t\_1\\
      
      
      \end{array}
      \end{array}
      
      Derivation
      1. Split input into 2 regimes
      2. if t < -3.2000000000000002e77 or 1.9e59 < t

        1. Initial program 78.4%

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

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

            \[\leadsto \color{blue}{-1 \cdot \frac{y \cdot \left(z - t\right)}{t} + x} \]
          2. mul-1-negN/A

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

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

            \[\leadsto \left(\mathsf{neg}\left(\color{blue}{\frac{z - t}{t} \cdot y}\right)\right) + x \]
          5. distribute-lft-neg-inN/A

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

            \[\leadsto \color{blue}{\mathsf{fma}\left(\mathsf{neg}\left(\frac{z - t}{t}\right), y, x\right)} \]
          7. neg-sub0N/A

            \[\leadsto \mathsf{fma}\left(\color{blue}{0 - \frac{z - t}{t}}, y, x\right) \]
          8. div-subN/A

            \[\leadsto \mathsf{fma}\left(0 - \color{blue}{\left(\frac{z}{t} - \frac{t}{t}\right)}, y, x\right) \]
          9. *-inversesN/A

            \[\leadsto \mathsf{fma}\left(0 - \left(\frac{z}{t} - \color{blue}{1}\right), y, x\right) \]
          10. associate-+l-N/A

            \[\leadsto \mathsf{fma}\left(\color{blue}{\left(0 - \frac{z}{t}\right) + 1}, y, x\right) \]
          11. neg-sub0N/A

            \[\leadsto \mathsf{fma}\left(\color{blue}{\left(\mathsf{neg}\left(\frac{z}{t}\right)\right)} + 1, y, x\right) \]
          12. mul-1-negN/A

            \[\leadsto \mathsf{fma}\left(\color{blue}{-1 \cdot \frac{z}{t}} + 1, y, x\right) \]
          13. +-commutativeN/A

            \[\leadsto \mathsf{fma}\left(\color{blue}{1 + -1 \cdot \frac{z}{t}}, y, x\right) \]
          14. mul-1-negN/A

            \[\leadsto \mathsf{fma}\left(1 + \color{blue}{\left(\mathsf{neg}\left(\frac{z}{t}\right)\right)}, y, x\right) \]
          15. unsub-negN/A

            \[\leadsto \mathsf{fma}\left(\color{blue}{1 - \frac{z}{t}}, y, x\right) \]
          16. lower--.f64N/A

            \[\leadsto \mathsf{fma}\left(\color{blue}{1 - \frac{z}{t}}, y, x\right) \]
          17. lower-/.f6494.0

            \[\leadsto \mathsf{fma}\left(1 - \color{blue}{\frac{z}{t}}, y, x\right) \]
        5. Applied rewrites94.0%

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

        if -3.2000000000000002e77 < t < 1.9e59

        1. Initial program 95.4%

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

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

            \[\leadsto x + \frac{\color{blue}{z \cdot y}}{a - t} \]
          2. lower-*.f6487.3

            \[\leadsto x + \frac{\color{blue}{z \cdot y}}{a - t} \]
        5. Applied rewrites87.3%

          \[\leadsto x + \frac{\color{blue}{z \cdot y}}{a - t} \]
      3. Recombined 2 regimes into one program.
      4. Final simplification90.1%

        \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -3.2 \cdot 10^{+77}:\\ \;\;\;\;\mathsf{fma}\left(1 - \frac{z}{t}, y, x\right)\\ \mathbf{elif}\;t \leq 1.9 \cdot 10^{+59}:\\ \;\;\;\;\frac{z \cdot y}{a - t} + x\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(1 - \frac{z}{t}, y, x\right)\\ \end{array} \]
      5. Add Preprocessing

      Alternative 4: 83.4% accurate, 0.8× speedup?

      \[\begin{array}{l} \\ \begin{array}{l} t_1 := \mathsf{fma}\left(1 - \frac{z}{t}, y, x\right)\\ \mathbf{if}\;t \leq -2.25 \cdot 10^{-113}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;t \leq 2.6 \cdot 10^{-14}:\\ \;\;\;\;\mathsf{fma}\left(\frac{z - t}{a}, y, x\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
      (FPCore (x y z t a)
       :precision binary64
       (let* ((t_1 (fma (- 1.0 (/ z t)) y x)))
         (if (<= t -2.25e-113) t_1 (if (<= t 2.6e-14) (fma (/ (- z t) a) y x) t_1))))
      double code(double x, double y, double z, double t, double a) {
      	double t_1 = fma((1.0 - (z / t)), y, x);
      	double tmp;
      	if (t <= -2.25e-113) {
      		tmp = t_1;
      	} else if (t <= 2.6e-14) {
      		tmp = fma(((z - t) / a), y, x);
      	} else {
      		tmp = t_1;
      	}
      	return tmp;
      }
      
      function code(x, y, z, t, a)
      	t_1 = fma(Float64(1.0 - Float64(z / t)), y, x)
      	tmp = 0.0
      	if (t <= -2.25e-113)
      		tmp = t_1;
      	elseif (t <= 2.6e-14)
      		tmp = fma(Float64(Float64(z - t) / a), y, x);
      	else
      		tmp = t_1;
      	end
      	return tmp
      end
      
      code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(N[(1.0 - N[(z / t), $MachinePrecision]), $MachinePrecision] * y + x), $MachinePrecision]}, If[LessEqual[t, -2.25e-113], t$95$1, If[LessEqual[t, 2.6e-14], N[(N[(N[(z - t), $MachinePrecision] / a), $MachinePrecision] * y + x), $MachinePrecision], t$95$1]]]
      
      \begin{array}{l}
      
      \\
      \begin{array}{l}
      t_1 := \mathsf{fma}\left(1 - \frac{z}{t}, y, x\right)\\
      \mathbf{if}\;t \leq -2.25 \cdot 10^{-113}:\\
      \;\;\;\;t\_1\\
      
      \mathbf{elif}\;t \leq 2.6 \cdot 10^{-14}:\\
      \;\;\;\;\mathsf{fma}\left(\frac{z - t}{a}, y, x\right)\\
      
      \mathbf{else}:\\
      \;\;\;\;t\_1\\
      
      
      \end{array}
      \end{array}
      
      Derivation
      1. Split input into 2 regimes
      2. if t < -2.2500000000000001e-113 or 2.59999999999999997e-14 < t

        1. Initial program 84.7%

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

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

            \[\leadsto \color{blue}{-1 \cdot \frac{y \cdot \left(z - t\right)}{t} + x} \]
          2. mul-1-negN/A

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

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

            \[\leadsto \left(\mathsf{neg}\left(\color{blue}{\frac{z - t}{t} \cdot y}\right)\right) + x \]
          5. distribute-lft-neg-inN/A

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

            \[\leadsto \color{blue}{\mathsf{fma}\left(\mathsf{neg}\left(\frac{z - t}{t}\right), y, x\right)} \]
          7. neg-sub0N/A

            \[\leadsto \mathsf{fma}\left(\color{blue}{0 - \frac{z - t}{t}}, y, x\right) \]
          8. div-subN/A

            \[\leadsto \mathsf{fma}\left(0 - \color{blue}{\left(\frac{z}{t} - \frac{t}{t}\right)}, y, x\right) \]
          9. *-inversesN/A

            \[\leadsto \mathsf{fma}\left(0 - \left(\frac{z}{t} - \color{blue}{1}\right), y, x\right) \]
          10. associate-+l-N/A

            \[\leadsto \mathsf{fma}\left(\color{blue}{\left(0 - \frac{z}{t}\right) + 1}, y, x\right) \]
          11. neg-sub0N/A

            \[\leadsto \mathsf{fma}\left(\color{blue}{\left(\mathsf{neg}\left(\frac{z}{t}\right)\right)} + 1, y, x\right) \]
          12. mul-1-negN/A

            \[\leadsto \mathsf{fma}\left(\color{blue}{-1 \cdot \frac{z}{t}} + 1, y, x\right) \]
          13. +-commutativeN/A

            \[\leadsto \mathsf{fma}\left(\color{blue}{1 + -1 \cdot \frac{z}{t}}, y, x\right) \]
          14. mul-1-negN/A

            \[\leadsto \mathsf{fma}\left(1 + \color{blue}{\left(\mathsf{neg}\left(\frac{z}{t}\right)\right)}, y, x\right) \]
          15. unsub-negN/A

            \[\leadsto \mathsf{fma}\left(\color{blue}{1 - \frac{z}{t}}, y, x\right) \]
          16. lower--.f64N/A

            \[\leadsto \mathsf{fma}\left(\color{blue}{1 - \frac{z}{t}}, y, x\right) \]
          17. lower-/.f6486.7

            \[\leadsto \mathsf{fma}\left(1 - \color{blue}{\frac{z}{t}}, y, x\right) \]
        5. Applied rewrites86.7%

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

        if -2.2500000000000001e-113 < t < 2.59999999999999997e-14

        1. Initial program 94.1%

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

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

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

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

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

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

            \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{z - t}{a}}, y, x\right) \]
          6. lower--.f6483.1

            \[\leadsto \mathsf{fma}\left(\frac{\color{blue}{z - t}}{a}, y, x\right) \]
        5. Applied rewrites83.1%

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

      Alternative 5: 82.6% accurate, 0.8× speedup?

      \[\begin{array}{l} \\ \begin{array}{l} t_1 := \mathsf{fma}\left(1 - \frac{z}{t}, y, x\right)\\ \mathbf{if}\;t \leq -2.25 \cdot 10^{-113}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;t \leq 3.6 \cdot 10^{-74}:\\ \;\;\;\;\mathsf{fma}\left(z, \frac{y}{a}, x\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
      (FPCore (x y z t a)
       :precision binary64
       (let* ((t_1 (fma (- 1.0 (/ z t)) y x)))
         (if (<= t -2.25e-113) t_1 (if (<= t 3.6e-74) (fma z (/ y a) x) t_1))))
      double code(double x, double y, double z, double t, double a) {
      	double t_1 = fma((1.0 - (z / t)), y, x);
      	double tmp;
      	if (t <= -2.25e-113) {
      		tmp = t_1;
      	} else if (t <= 3.6e-74) {
      		tmp = fma(z, (y / a), x);
      	} else {
      		tmp = t_1;
      	}
      	return tmp;
      }
      
      function code(x, y, z, t, a)
      	t_1 = fma(Float64(1.0 - Float64(z / t)), y, x)
      	tmp = 0.0
      	if (t <= -2.25e-113)
      		tmp = t_1;
      	elseif (t <= 3.6e-74)
      		tmp = fma(z, Float64(y / a), x);
      	else
      		tmp = t_1;
      	end
      	return tmp
      end
      
      code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(N[(1.0 - N[(z / t), $MachinePrecision]), $MachinePrecision] * y + x), $MachinePrecision]}, If[LessEqual[t, -2.25e-113], t$95$1, If[LessEqual[t, 3.6e-74], N[(z * N[(y / a), $MachinePrecision] + x), $MachinePrecision], t$95$1]]]
      
      \begin{array}{l}
      
      \\
      \begin{array}{l}
      t_1 := \mathsf{fma}\left(1 - \frac{z}{t}, y, x\right)\\
      \mathbf{if}\;t \leq -2.25 \cdot 10^{-113}:\\
      \;\;\;\;t\_1\\
      
      \mathbf{elif}\;t \leq 3.6 \cdot 10^{-74}:\\
      \;\;\;\;\mathsf{fma}\left(z, \frac{y}{a}, x\right)\\
      
      \mathbf{else}:\\
      \;\;\;\;t\_1\\
      
      
      \end{array}
      \end{array}
      
      Derivation
      1. Split input into 2 regimes
      2. if t < -2.2500000000000001e-113 or 3.6000000000000002e-74 < t

        1. Initial program 84.9%

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

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

            \[\leadsto \color{blue}{-1 \cdot \frac{y \cdot \left(z - t\right)}{t} + x} \]
          2. mul-1-negN/A

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

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

            \[\leadsto \left(\mathsf{neg}\left(\color{blue}{\frac{z - t}{t} \cdot y}\right)\right) + x \]
          5. distribute-lft-neg-inN/A

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

            \[\leadsto \color{blue}{\mathsf{fma}\left(\mathsf{neg}\left(\frac{z - t}{t}\right), y, x\right)} \]
          7. neg-sub0N/A

            \[\leadsto \mathsf{fma}\left(\color{blue}{0 - \frac{z - t}{t}}, y, x\right) \]
          8. div-subN/A

            \[\leadsto \mathsf{fma}\left(0 - \color{blue}{\left(\frac{z}{t} - \frac{t}{t}\right)}, y, x\right) \]
          9. *-inversesN/A

            \[\leadsto \mathsf{fma}\left(0 - \left(\frac{z}{t} - \color{blue}{1}\right), y, x\right) \]
          10. associate-+l-N/A

            \[\leadsto \mathsf{fma}\left(\color{blue}{\left(0 - \frac{z}{t}\right) + 1}, y, x\right) \]
          11. neg-sub0N/A

            \[\leadsto \mathsf{fma}\left(\color{blue}{\left(\mathsf{neg}\left(\frac{z}{t}\right)\right)} + 1, y, x\right) \]
          12. mul-1-negN/A

            \[\leadsto \mathsf{fma}\left(\color{blue}{-1 \cdot \frac{z}{t}} + 1, y, x\right) \]
          13. +-commutativeN/A

            \[\leadsto \mathsf{fma}\left(\color{blue}{1 + -1 \cdot \frac{z}{t}}, y, x\right) \]
          14. mul-1-negN/A

            \[\leadsto \mathsf{fma}\left(1 + \color{blue}{\left(\mathsf{neg}\left(\frac{z}{t}\right)\right)}, y, x\right) \]
          15. unsub-negN/A

            \[\leadsto \mathsf{fma}\left(\color{blue}{1 - \frac{z}{t}}, y, x\right) \]
          16. lower--.f64N/A

            \[\leadsto \mathsf{fma}\left(\color{blue}{1 - \frac{z}{t}}, y, x\right) \]
          17. lower-/.f6484.6

            \[\leadsto \mathsf{fma}\left(1 - \color{blue}{\frac{z}{t}}, y, x\right) \]
        5. Applied rewrites84.6%

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

        if -2.2500000000000001e-113 < t < 3.6000000000000002e-74

        1. Initial program 94.7%

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

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

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

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

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

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

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

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

            \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y}{a - t}, z - t, x\right)} \]
          9. lower-/.f6494.7

            \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y}{a - t}}, z - t, x\right) \]
        4. Applied rewrites94.7%

          \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y}{a - t}, z - t, x\right)} \]
        5. Taylor expanded in t around 0

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

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

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

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

            \[\leadsto \color{blue}{\mathsf{fma}\left(z, \frac{y}{a}, x\right)} \]
          5. lower-/.f6485.3

            \[\leadsto \mathsf{fma}\left(z, \color{blue}{\frac{y}{a}}, x\right) \]
        7. Applied rewrites85.3%

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

      Alternative 6: 76.8% accurate, 0.9× speedup?

      \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t \leq -8.8 \cdot 10^{+52}:\\ \;\;\;\;y + x\\ \mathbf{elif}\;t \leq 1.05 \cdot 10^{+67}:\\ \;\;\;\;\mathsf{fma}\left(z, \frac{y}{a}, x\right)\\ \mathbf{else}:\\ \;\;\;\;y + x\\ \end{array} \end{array} \]
      (FPCore (x y z t a)
       :precision binary64
       (if (<= t -8.8e+52) (+ y x) (if (<= t 1.05e+67) (fma z (/ y a) x) (+ y x))))
      double code(double x, double y, double z, double t, double a) {
      	double tmp;
      	if (t <= -8.8e+52) {
      		tmp = y + x;
      	} else if (t <= 1.05e+67) {
      		tmp = fma(z, (y / a), x);
      	} else {
      		tmp = y + x;
      	}
      	return tmp;
      }
      
      function code(x, y, z, t, a)
      	tmp = 0.0
      	if (t <= -8.8e+52)
      		tmp = Float64(y + x);
      	elseif (t <= 1.05e+67)
      		tmp = fma(z, Float64(y / a), x);
      	else
      		tmp = Float64(y + x);
      	end
      	return tmp
      end
      
      code[x_, y_, z_, t_, a_] := If[LessEqual[t, -8.8e+52], N[(y + x), $MachinePrecision], If[LessEqual[t, 1.05e+67], N[(z * N[(y / a), $MachinePrecision] + x), $MachinePrecision], N[(y + x), $MachinePrecision]]]
      
      \begin{array}{l}
      
      \\
      \begin{array}{l}
      \mathbf{if}\;t \leq -8.8 \cdot 10^{+52}:\\
      \;\;\;\;y + x\\
      
      \mathbf{elif}\;t \leq 1.05 \cdot 10^{+67}:\\
      \;\;\;\;\mathsf{fma}\left(z, \frac{y}{a}, x\right)\\
      
      \mathbf{else}:\\
      \;\;\;\;y + x\\
      
      
      \end{array}
      \end{array}
      
      Derivation
      1. Split input into 2 regimes
      2. if t < -8.7999999999999999e52 or 1.0500000000000001e67 < t

        1. Initial program 79.4%

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

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

            \[\leadsto \color{blue}{y + x} \]
          2. lower-+.f6483.1

            \[\leadsto \color{blue}{y + x} \]
        5. Applied rewrites83.1%

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

        if -8.7999999999999999e52 < t < 1.0500000000000001e67

        1. Initial program 95.2%

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

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

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

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

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

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

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

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

            \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y}{a - t}, z - t, x\right)} \]
          9. lower-/.f6496.7

            \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y}{a - t}}, z - t, x\right) \]
        4. Applied rewrites96.7%

          \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y}{a - t}, z - t, x\right)} \]
        5. Taylor expanded in t around 0

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

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

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

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

            \[\leadsto \color{blue}{\mathsf{fma}\left(z, \frac{y}{a}, x\right)} \]
          5. lower-/.f6475.6

            \[\leadsto \mathsf{fma}\left(z, \color{blue}{\frac{y}{a}}, x\right) \]
        7. Applied rewrites75.6%

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

      Alternative 7: 76.9% accurate, 0.9× speedup?

      \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t \leq -8.8 \cdot 10^{+52}:\\ \;\;\;\;y + x\\ \mathbf{elif}\;t \leq 1.05 \cdot 10^{+67}:\\ \;\;\;\;\mathsf{fma}\left(\frac{z}{a}, y, x\right)\\ \mathbf{else}:\\ \;\;\;\;y + x\\ \end{array} \end{array} \]
      (FPCore (x y z t a)
       :precision binary64
       (if (<= t -8.8e+52) (+ y x) (if (<= t 1.05e+67) (fma (/ z a) y x) (+ y x))))
      double code(double x, double y, double z, double t, double a) {
      	double tmp;
      	if (t <= -8.8e+52) {
      		tmp = y + x;
      	} else if (t <= 1.05e+67) {
      		tmp = fma((z / a), y, x);
      	} else {
      		tmp = y + x;
      	}
      	return tmp;
      }
      
      function code(x, y, z, t, a)
      	tmp = 0.0
      	if (t <= -8.8e+52)
      		tmp = Float64(y + x);
      	elseif (t <= 1.05e+67)
      		tmp = fma(Float64(z / a), y, x);
      	else
      		tmp = Float64(y + x);
      	end
      	return tmp
      end
      
      code[x_, y_, z_, t_, a_] := If[LessEqual[t, -8.8e+52], N[(y + x), $MachinePrecision], If[LessEqual[t, 1.05e+67], N[(N[(z / a), $MachinePrecision] * y + x), $MachinePrecision], N[(y + x), $MachinePrecision]]]
      
      \begin{array}{l}
      
      \\
      \begin{array}{l}
      \mathbf{if}\;t \leq -8.8 \cdot 10^{+52}:\\
      \;\;\;\;y + x\\
      
      \mathbf{elif}\;t \leq 1.05 \cdot 10^{+67}:\\
      \;\;\;\;\mathsf{fma}\left(\frac{z}{a}, y, x\right)\\
      
      \mathbf{else}:\\
      \;\;\;\;y + x\\
      
      
      \end{array}
      \end{array}
      
      Derivation
      1. Split input into 2 regimes
      2. if t < -8.7999999999999999e52 or 1.0500000000000001e67 < t

        1. Initial program 79.4%

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

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

            \[\leadsto \color{blue}{y + x} \]
          2. lower-+.f6483.1

            \[\leadsto \color{blue}{y + x} \]
        5. Applied rewrites83.1%

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

        if -8.7999999999999999e52 < t < 1.0500000000000001e67

        1. Initial program 95.2%

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

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

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

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

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

            \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z}{a}, y, x\right)} \]
          5. lower-/.f6475.3

            \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{z}{a}}, y, x\right) \]
        5. Applied rewrites75.3%

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

      Alternative 8: 96.0% accurate, 0.9× speedup?

      \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t \leq -4.1 \cdot 10^{+157}:\\ \;\;\;\;\mathsf{fma}\left(1 - \frac{z}{t}, y, x\right)\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(\frac{y}{a - t}, z - t, x\right)\\ \end{array} \end{array} \]
      (FPCore (x y z t a)
       :precision binary64
       (if (<= t -4.1e+157) (fma (- 1.0 (/ z t)) y x) (fma (/ y (- a t)) (- z t) x)))
      double code(double x, double y, double z, double t, double a) {
      	double tmp;
      	if (t <= -4.1e+157) {
      		tmp = fma((1.0 - (z / t)), y, x);
      	} else {
      		tmp = fma((y / (a - t)), (z - t), x);
      	}
      	return tmp;
      }
      
      function code(x, y, z, t, a)
      	tmp = 0.0
      	if (t <= -4.1e+157)
      		tmp = fma(Float64(1.0 - Float64(z / t)), y, x);
      	else
      		tmp = fma(Float64(y / Float64(a - t)), Float64(z - t), x);
      	end
      	return tmp
      end
      
      code[x_, y_, z_, t_, a_] := If[LessEqual[t, -4.1e+157], N[(N[(1.0 - N[(z / t), $MachinePrecision]), $MachinePrecision] * y + x), $MachinePrecision], N[(N[(y / N[(a - t), $MachinePrecision]), $MachinePrecision] * N[(z - t), $MachinePrecision] + x), $MachinePrecision]]
      
      \begin{array}{l}
      
      \\
      \begin{array}{l}
      \mathbf{if}\;t \leq -4.1 \cdot 10^{+157}:\\
      \;\;\;\;\mathsf{fma}\left(1 - \frac{z}{t}, y, x\right)\\
      
      \mathbf{else}:\\
      \;\;\;\;\mathsf{fma}\left(\frac{y}{a - t}, z - t, x\right)\\
      
      
      \end{array}
      \end{array}
      
      Derivation
      1. Split input into 2 regimes
      2. if t < -4.10000000000000016e157

        1. Initial program 77.4%

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

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

            \[\leadsto \color{blue}{-1 \cdot \frac{y \cdot \left(z - t\right)}{t} + x} \]
          2. mul-1-negN/A

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

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

            \[\leadsto \left(\mathsf{neg}\left(\color{blue}{\frac{z - t}{t} \cdot y}\right)\right) + x \]
          5. distribute-lft-neg-inN/A

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

            \[\leadsto \color{blue}{\mathsf{fma}\left(\mathsf{neg}\left(\frac{z - t}{t}\right), y, x\right)} \]
          7. neg-sub0N/A

            \[\leadsto \mathsf{fma}\left(\color{blue}{0 - \frac{z - t}{t}}, y, x\right) \]
          8. div-subN/A

            \[\leadsto \mathsf{fma}\left(0 - \color{blue}{\left(\frac{z}{t} - \frac{t}{t}\right)}, y, x\right) \]
          9. *-inversesN/A

            \[\leadsto \mathsf{fma}\left(0 - \left(\frac{z}{t} - \color{blue}{1}\right), y, x\right) \]
          10. associate-+l-N/A

            \[\leadsto \mathsf{fma}\left(\color{blue}{\left(0 - \frac{z}{t}\right) + 1}, y, x\right) \]
          11. neg-sub0N/A

            \[\leadsto \mathsf{fma}\left(\color{blue}{\left(\mathsf{neg}\left(\frac{z}{t}\right)\right)} + 1, y, x\right) \]
          12. mul-1-negN/A

            \[\leadsto \mathsf{fma}\left(\color{blue}{-1 \cdot \frac{z}{t}} + 1, y, x\right) \]
          13. +-commutativeN/A

            \[\leadsto \mathsf{fma}\left(\color{blue}{1 + -1 \cdot \frac{z}{t}}, y, x\right) \]
          14. mul-1-negN/A

            \[\leadsto \mathsf{fma}\left(1 + \color{blue}{\left(\mathsf{neg}\left(\frac{z}{t}\right)\right)}, y, x\right) \]
          15. unsub-negN/A

            \[\leadsto \mathsf{fma}\left(\color{blue}{1 - \frac{z}{t}}, y, x\right) \]
          16. lower--.f64N/A

            \[\leadsto \mathsf{fma}\left(\color{blue}{1 - \frac{z}{t}}, y, x\right) \]
          17. lower-/.f6497.1

            \[\leadsto \mathsf{fma}\left(1 - \color{blue}{\frac{z}{t}}, y, x\right) \]
        5. Applied rewrites97.1%

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

        if -4.10000000000000016e157 < t

        1. Initial program 90.1%

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

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

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

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

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

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

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

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

            \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y}{a - t}, z - t, x\right)} \]
          9. lower-/.f6497.3

            \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y}{a - t}}, z - t, x\right) \]
        4. Applied rewrites97.3%

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

      Alternative 9: 60.9% 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 88.4%

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

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

          \[\leadsto \color{blue}{y + x} \]
        2. lower-+.f6459.3

          \[\leadsto \color{blue}{y + x} \]
      5. Applied rewrites59.3%

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

      Developer Target 1: 98.1% accurate, 0.8× speedup?

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

      Reproduce

      ?
      herbie shell --seed 2024268 
      (FPCore (x y z t a)
        :name "Graphics.Rendering.Plot.Render.Plot.Axis:renderAxisTicks from plot-0.2.3.4, B"
        :precision binary64
      
        :alt
        (! :herbie-platform default (+ x (/ y (/ (- a t) (- z t)))))
      
        (+ x (/ (* y (- z t)) (- a t))))