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

Percentage Accurate: 85.8% → 95.3%
Time: 7.8s
Alternatives: 11
Speedup: 0.8×

Specification

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

\\
x + \frac{\left(y - z\right) \cdot t}{a - z}
\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 11 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: 85.8% accurate, 1.0× speedup?

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

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

Alternative 1: 95.3% accurate, 0.8× speedup?

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

\\
\frac{y - z}{\frac{a - z}{t}} + x
\end{array}
Derivation
  1. Initial program 81.1%

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

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

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

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

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

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

      \[\leadsto x + \color{blue}{\frac{y - z}{\frac{a - z}{t}}} \]
    7. lower-/.f6497.9

      \[\leadsto x + \frac{y - z}{\color{blue}{\frac{a - z}{t}}} \]
  4. Applied rewrites97.9%

    \[\leadsto x + \color{blue}{\frac{y - z}{\frac{a - z}{t}}} \]
  5. Final simplification97.9%

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

Alternative 2: 95.0% accurate, 0.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{t \cdot \left(y - z\right)}{a - z}\\ \mathbf{if}\;t\_1 \leq -\infty:\\ \;\;\;\;\mathsf{fma}\left(1 - \frac{y}{z}, t, x\right)\\ \mathbf{elif}\;t\_1 \leq 5 \cdot 10^{+277}:\\ \;\;\;\;t\_1 + x\\ \mathbf{else}:\\ \;\;\;\;\frac{y - z}{\frac{a - z}{t}}\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (let* ((t_1 (/ (* t (- y z)) (- a z))))
   (if (<= t_1 (- INFINITY))
     (fma (- 1.0 (/ y z)) t x)
     (if (<= t_1 5e+277) (+ t_1 x) (/ (- y z) (/ (- a z) t))))))
double code(double x, double y, double z, double t, double a) {
	double t_1 = (t * (y - z)) / (a - z);
	double tmp;
	if (t_1 <= -((double) INFINITY)) {
		tmp = fma((1.0 - (y / z)), t, x);
	} else if (t_1 <= 5e+277) {
		tmp = t_1 + x;
	} else {
		tmp = (y - z) / ((a - z) / t);
	}
	return tmp;
}
function code(x, y, z, t, a)
	t_1 = Float64(Float64(t * Float64(y - z)) / Float64(a - z))
	tmp = 0.0
	if (t_1 <= Float64(-Inf))
		tmp = fma(Float64(1.0 - Float64(y / z)), t, x);
	elseif (t_1 <= 5e+277)
		tmp = Float64(t_1 + x);
	else
		tmp = Float64(Float64(y - z) / Float64(Float64(a - z) / t));
	end
	return tmp
end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(N[(t * N[(y - z), $MachinePrecision]), $MachinePrecision] / N[(a - z), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$1, (-Infinity)], N[(N[(1.0 - N[(y / z), $MachinePrecision]), $MachinePrecision] * t + x), $MachinePrecision], If[LessEqual[t$95$1, 5e+277], N[(t$95$1 + x), $MachinePrecision], N[(N[(y - z), $MachinePrecision] / N[(N[(a - z), $MachinePrecision] / t), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \frac{t \cdot \left(y - z\right)}{a - z}\\
\mathbf{if}\;t\_1 \leq -\infty:\\
\;\;\;\;\mathsf{fma}\left(1 - \frac{y}{z}, t, x\right)\\

\mathbf{elif}\;t\_1 \leq 5 \cdot 10^{+277}:\\
\;\;\;\;t\_1 + x\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if (/.f64 (*.f64 (-.f64 y z) t) (-.f64 a z)) < -inf.0

    1. Initial program 31.8%

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

        \[\leadsto \mathsf{fma}\left(\color{blue}{1 - \frac{y}{z}}, t, x\right) \]
      17. lower-/.f6483.2

        \[\leadsto \mathsf{fma}\left(1 - \color{blue}{\frac{y}{z}}, t, x\right) \]
    5. Applied rewrites83.2%

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

    if -inf.0 < (/.f64 (*.f64 (-.f64 y z) t) (-.f64 a z)) < 4.99999999999999982e277

    1. Initial program 99.8%

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

    if 4.99999999999999982e277 < (/.f64 (*.f64 (-.f64 y z) t) (-.f64 a z))

    1. Initial program 32.9%

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

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

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

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

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

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

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

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

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

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

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

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

        \[\leadsto \frac{t}{\color{blue}{a - z}} \cdot \left(y - z\right) \]
      12. lower--.f6493.4

        \[\leadsto \frac{t}{a - z} \cdot \color{blue}{\left(y - z\right)} \]
    5. Applied rewrites93.4%

      \[\leadsto \color{blue}{\frac{t}{a - z} \cdot \left(y - z\right)} \]
    6. Step-by-step derivation
      1. Applied rewrites93.6%

        \[\leadsto \frac{y - z}{\color{blue}{\frac{a - z}{t}}} \]
    7. Recombined 3 regimes into one program.
    8. Final simplification96.5%

      \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{t \cdot \left(y - z\right)}{a - z} \leq -\infty:\\ \;\;\;\;\mathsf{fma}\left(1 - \frac{y}{z}, t, x\right)\\ \mathbf{elif}\;\frac{t \cdot \left(y - z\right)}{a - z} \leq 5 \cdot 10^{+277}:\\ \;\;\;\;\frac{t \cdot \left(y - z\right)}{a - z} + x\\ \mathbf{else}:\\ \;\;\;\;\frac{y - z}{\frac{a - z}{t}}\\ \end{array} \]
    9. Add Preprocessing

    Alternative 3: 95.1% accurate, 0.3× speedup?

    \[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{t \cdot \left(y - z\right)}{a - z}\\ \mathbf{if}\;t\_1 \leq -\infty:\\ \;\;\;\;\mathsf{fma}\left(1 - \frac{y}{z}, t, x\right)\\ \mathbf{elif}\;t\_1 \leq 5 \cdot 10^{+266}:\\ \;\;\;\;t\_1 + x\\ \mathbf{else}:\\ \;\;\;\;\frac{t}{\frac{a - z}{y - z}}\\ \end{array} \end{array} \]
    (FPCore (x y z t a)
     :precision binary64
     (let* ((t_1 (/ (* t (- y z)) (- a z))))
       (if (<= t_1 (- INFINITY))
         (fma (- 1.0 (/ y z)) t x)
         (if (<= t_1 5e+266) (+ t_1 x) (/ t (/ (- a z) (- y z)))))))
    double code(double x, double y, double z, double t, double a) {
    	double t_1 = (t * (y - z)) / (a - z);
    	double tmp;
    	if (t_1 <= -((double) INFINITY)) {
    		tmp = fma((1.0 - (y / z)), t, x);
    	} else if (t_1 <= 5e+266) {
    		tmp = t_1 + x;
    	} else {
    		tmp = t / ((a - z) / (y - z));
    	}
    	return tmp;
    }
    
    function code(x, y, z, t, a)
    	t_1 = Float64(Float64(t * Float64(y - z)) / Float64(a - z))
    	tmp = 0.0
    	if (t_1 <= Float64(-Inf))
    		tmp = fma(Float64(1.0 - Float64(y / z)), t, x);
    	elseif (t_1 <= 5e+266)
    		tmp = Float64(t_1 + x);
    	else
    		tmp = Float64(t / Float64(Float64(a - z) / Float64(y - z)));
    	end
    	return tmp
    end
    
    code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(N[(t * N[(y - z), $MachinePrecision]), $MachinePrecision] / N[(a - z), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$1, (-Infinity)], N[(N[(1.0 - N[(y / z), $MachinePrecision]), $MachinePrecision] * t + x), $MachinePrecision], If[LessEqual[t$95$1, 5e+266], N[(t$95$1 + x), $MachinePrecision], N[(t / N[(N[(a - z), $MachinePrecision] / N[(y - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]
    
    \begin{array}{l}
    
    \\
    \begin{array}{l}
    t_1 := \frac{t \cdot \left(y - z\right)}{a - z}\\
    \mathbf{if}\;t\_1 \leq -\infty:\\
    \;\;\;\;\mathsf{fma}\left(1 - \frac{y}{z}, t, x\right)\\
    
    \mathbf{elif}\;t\_1 \leq 5 \cdot 10^{+266}:\\
    \;\;\;\;t\_1 + x\\
    
    \mathbf{else}:\\
    \;\;\;\;\frac{t}{\frac{a - z}{y - z}}\\
    
    
    \end{array}
    \end{array}
    
    Derivation
    1. Split input into 3 regimes
    2. if (/.f64 (*.f64 (-.f64 y z) t) (-.f64 a z)) < -inf.0

      1. Initial program 31.8%

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

          \[\leadsto \mathsf{fma}\left(\color{blue}{1 - \frac{y}{z}}, t, x\right) \]
        17. lower-/.f6483.2

          \[\leadsto \mathsf{fma}\left(1 - \color{blue}{\frac{y}{z}}, t, x\right) \]
      5. Applied rewrites83.2%

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

      if -inf.0 < (/.f64 (*.f64 (-.f64 y z) t) (-.f64 a z)) < 4.9999999999999999e266

      1. Initial program 99.8%

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

      if 4.9999999999999999e266 < (/.f64 (*.f64 (-.f64 y z) t) (-.f64 a z))

      1. Initial program 35.0%

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

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

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

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

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

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

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

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

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

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

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

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

          \[\leadsto \frac{t}{\color{blue}{a - z}} \cdot \left(y - z\right) \]
        12. lower--.f6490.8

          \[\leadsto \frac{t}{a - z} \cdot \color{blue}{\left(y - z\right)} \]
      5. Applied rewrites90.8%

        \[\leadsto \color{blue}{\frac{t}{a - z} \cdot \left(y - z\right)} \]
      6. Step-by-step derivation
        1. Applied rewrites90.9%

          \[\leadsto \frac{y - z}{\color{blue}{\frac{a - z}{t}}} \]
        2. Step-by-step derivation
          1. Applied rewrites93.7%

            \[\leadsto \frac{t}{\color{blue}{\frac{a - z}{y - z}}} \]
        3. Recombined 3 regimes into one program.
        4. Final simplification96.5%

          \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{t \cdot \left(y - z\right)}{a - z} \leq -\infty:\\ \;\;\;\;\mathsf{fma}\left(1 - \frac{y}{z}, t, x\right)\\ \mathbf{elif}\;\frac{t \cdot \left(y - z\right)}{a - z} \leq 5 \cdot 10^{+266}:\\ \;\;\;\;\frac{t \cdot \left(y - z\right)}{a - z} + x\\ \mathbf{else}:\\ \;\;\;\;\frac{t}{\frac{a - z}{y - z}}\\ \end{array} \]
        5. Add Preprocessing

        Alternative 4: 95.0% accurate, 0.3× speedup?

        \[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{t \cdot \left(y - z\right)}{a - z}\\ \mathbf{if}\;t\_1 \leq -\infty:\\ \;\;\;\;\mathsf{fma}\left(1 - \frac{y}{z}, t, x\right)\\ \mathbf{elif}\;t\_1 \leq 5 \cdot 10^{+277}:\\ \;\;\;\;t\_1 + x\\ \mathbf{else}:\\ \;\;\;\;\frac{t}{a - z} \cdot \left(y - z\right)\\ \end{array} \end{array} \]
        (FPCore (x y z t a)
         :precision binary64
         (let* ((t_1 (/ (* t (- y z)) (- a z))))
           (if (<= t_1 (- INFINITY))
             (fma (- 1.0 (/ y z)) t x)
             (if (<= t_1 5e+277) (+ t_1 x) (* (/ t (- a z)) (- y z))))))
        double code(double x, double y, double z, double t, double a) {
        	double t_1 = (t * (y - z)) / (a - z);
        	double tmp;
        	if (t_1 <= -((double) INFINITY)) {
        		tmp = fma((1.0 - (y / z)), t, x);
        	} else if (t_1 <= 5e+277) {
        		tmp = t_1 + x;
        	} else {
        		tmp = (t / (a - z)) * (y - z);
        	}
        	return tmp;
        }
        
        function code(x, y, z, t, a)
        	t_1 = Float64(Float64(t * Float64(y - z)) / Float64(a - z))
        	tmp = 0.0
        	if (t_1 <= Float64(-Inf))
        		tmp = fma(Float64(1.0 - Float64(y / z)), t, x);
        	elseif (t_1 <= 5e+277)
        		tmp = Float64(t_1 + x);
        	else
        		tmp = Float64(Float64(t / Float64(a - z)) * Float64(y - z));
        	end
        	return tmp
        end
        
        code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(N[(t * N[(y - z), $MachinePrecision]), $MachinePrecision] / N[(a - z), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$1, (-Infinity)], N[(N[(1.0 - N[(y / z), $MachinePrecision]), $MachinePrecision] * t + x), $MachinePrecision], If[LessEqual[t$95$1, 5e+277], N[(t$95$1 + x), $MachinePrecision], N[(N[(t / N[(a - z), $MachinePrecision]), $MachinePrecision] * N[(y - z), $MachinePrecision]), $MachinePrecision]]]]
        
        \begin{array}{l}
        
        \\
        \begin{array}{l}
        t_1 := \frac{t \cdot \left(y - z\right)}{a - z}\\
        \mathbf{if}\;t\_1 \leq -\infty:\\
        \;\;\;\;\mathsf{fma}\left(1 - \frac{y}{z}, t, x\right)\\
        
        \mathbf{elif}\;t\_1 \leq 5 \cdot 10^{+277}:\\
        \;\;\;\;t\_1 + x\\
        
        \mathbf{else}:\\
        \;\;\;\;\frac{t}{a - z} \cdot \left(y - z\right)\\
        
        
        \end{array}
        \end{array}
        
        Derivation
        1. Split input into 3 regimes
        2. if (/.f64 (*.f64 (-.f64 y z) t) (-.f64 a z)) < -inf.0

          1. Initial program 31.8%

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

              \[\leadsto \mathsf{fma}\left(\color{blue}{1 - \frac{y}{z}}, t, x\right) \]
            17. lower-/.f6483.2

              \[\leadsto \mathsf{fma}\left(1 - \color{blue}{\frac{y}{z}}, t, x\right) \]
          5. Applied rewrites83.2%

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

          if -inf.0 < (/.f64 (*.f64 (-.f64 y z) t) (-.f64 a z)) < 4.99999999999999982e277

          1. Initial program 99.8%

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

          if 4.99999999999999982e277 < (/.f64 (*.f64 (-.f64 y z) t) (-.f64 a z))

          1. Initial program 32.9%

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

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

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

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

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

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

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

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

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

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

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

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

              \[\leadsto \frac{t}{\color{blue}{a - z}} \cdot \left(y - z\right) \]
            12. lower--.f6493.4

              \[\leadsto \frac{t}{a - z} \cdot \color{blue}{\left(y - z\right)} \]
          5. Applied rewrites93.4%

            \[\leadsto \color{blue}{\frac{t}{a - z} \cdot \left(y - z\right)} \]
        3. Recombined 3 regimes into one program.
        4. Final simplification96.5%

          \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{t \cdot \left(y - z\right)}{a - z} \leq -\infty:\\ \;\;\;\;\mathsf{fma}\left(1 - \frac{y}{z}, t, x\right)\\ \mathbf{elif}\;\frac{t \cdot \left(y - z\right)}{a - z} \leq 5 \cdot 10^{+277}:\\ \;\;\;\;\frac{t \cdot \left(y - z\right)}{a - z} + x\\ \mathbf{else}:\\ \;\;\;\;\frac{t}{a - z} \cdot \left(y - z\right)\\ \end{array} \]
        5. Add Preprocessing

        Alternative 5: 83.8% accurate, 0.3× speedup?

        \[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{t}{a - z} \cdot \left(y - z\right)\\ t_2 := \frac{t \cdot \left(y - z\right)}{a - z}\\ \mathbf{if}\;t\_2 \leq -1 \cdot 10^{+37}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;t\_2 \leq 5 \cdot 10^{+68}:\\ \;\;\;\;\mathsf{fma}\left(-t, \frac{z}{a - z}, x\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
        (FPCore (x y z t a)
         :precision binary64
         (let* ((t_1 (* (/ t (- a z)) (- y z))) (t_2 (/ (* t (- y z)) (- a z))))
           (if (<= t_2 -1e+37)
             t_1
             (if (<= t_2 5e+68) (fma (- t) (/ z (- a z)) x) t_1))))
        double code(double x, double y, double z, double t, double a) {
        	double t_1 = (t / (a - z)) * (y - z);
        	double t_2 = (t * (y - z)) / (a - z);
        	double tmp;
        	if (t_2 <= -1e+37) {
        		tmp = t_1;
        	} else if (t_2 <= 5e+68) {
        		tmp = fma(-t, (z / (a - z)), x);
        	} else {
        		tmp = t_1;
        	}
        	return tmp;
        }
        
        function code(x, y, z, t, a)
        	t_1 = Float64(Float64(t / Float64(a - z)) * Float64(y - z))
        	t_2 = Float64(Float64(t * Float64(y - z)) / Float64(a - z))
        	tmp = 0.0
        	if (t_2 <= -1e+37)
        		tmp = t_1;
        	elseif (t_2 <= 5e+68)
        		tmp = fma(Float64(-t), Float64(z / Float64(a - z)), x);
        	else
        		tmp = t_1;
        	end
        	return tmp
        end
        
        code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(N[(t / N[(a - z), $MachinePrecision]), $MachinePrecision] * N[(y - z), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(N[(t * N[(y - z), $MachinePrecision]), $MachinePrecision] / N[(a - z), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$2, -1e+37], t$95$1, If[LessEqual[t$95$2, 5e+68], N[((-t) * N[(z / N[(a - z), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision], t$95$1]]]]
        
        \begin{array}{l}
        
        \\
        \begin{array}{l}
        t_1 := \frac{t}{a - z} \cdot \left(y - z\right)\\
        t_2 := \frac{t \cdot \left(y - z\right)}{a - z}\\
        \mathbf{if}\;t\_2 \leq -1 \cdot 10^{+37}:\\
        \;\;\;\;t\_1\\
        
        \mathbf{elif}\;t\_2 \leq 5 \cdot 10^{+68}:\\
        \;\;\;\;\mathsf{fma}\left(-t, \frac{z}{a - z}, x\right)\\
        
        \mathbf{else}:\\
        \;\;\;\;t\_1\\
        
        
        \end{array}
        \end{array}
        
        Derivation
        1. Split input into 2 regimes
        2. if (/.f64 (*.f64 (-.f64 y z) t) (-.f64 a z)) < -9.99999999999999954e36 or 5.0000000000000004e68 < (/.f64 (*.f64 (-.f64 y z) t) (-.f64 a z))

          1. Initial program 62.0%

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

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

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

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

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

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

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

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

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

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

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

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

              \[\leadsto \frac{t}{\color{blue}{a - z}} \cdot \left(y - z\right) \]
            12. lower--.f6480.8

              \[\leadsto \frac{t}{a - z} \cdot \color{blue}{\left(y - z\right)} \]
          5. Applied rewrites80.8%

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

          if -9.99999999999999954e36 < (/.f64 (*.f64 (-.f64 y z) t) (-.f64 a z)) < 5.0000000000000004e68

          1. Initial program 99.9%

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

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

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

              \[\leadsto -1 \cdot \color{blue}{\left(t \cdot \frac{z}{a - z}\right)} + x \]
            3. associate-*r*N/A

              \[\leadsto \color{blue}{\left(-1 \cdot t\right) \cdot \frac{z}{a - z}} + x \]
            4. lower-fma.f64N/A

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

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

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

              \[\leadsto \mathsf{fma}\left(-t, \color{blue}{\frac{z}{a - z}}, x\right) \]
            8. lower--.f6491.0

              \[\leadsto \mathsf{fma}\left(-t, \frac{z}{\color{blue}{a - z}}, x\right) \]
          5. Applied rewrites91.0%

            \[\leadsto \color{blue}{\mathsf{fma}\left(-t, \frac{z}{a - z}, x\right)} \]
        3. Recombined 2 regimes into one program.
        4. Final simplification85.9%

          \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{t \cdot \left(y - z\right)}{a - z} \leq -1 \cdot 10^{+37}:\\ \;\;\;\;\frac{t}{a - z} \cdot \left(y - z\right)\\ \mathbf{elif}\;\frac{t \cdot \left(y - z\right)}{a - z} \leq 5 \cdot 10^{+68}:\\ \;\;\;\;\mathsf{fma}\left(-t, \frac{z}{a - z}, x\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t}{a - z} \cdot \left(y - z\right)\\ \end{array} \]
        5. Add Preprocessing

        Alternative 6: 85.8% accurate, 0.7× speedup?

        \[\begin{array}{l} \\ \begin{array}{l} t_1 := \mathsf{fma}\left(-t, \frac{z}{a - z}, x\right)\\ \mathbf{if}\;z \leq -0.55:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq 2.5 \cdot 10^{+22}:\\ \;\;\;\;\frac{t \cdot y}{a - z} + x\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
        (FPCore (x y z t a)
         :precision binary64
         (let* ((t_1 (fma (- t) (/ z (- a z)) x)))
           (if (<= z -0.55) t_1 (if (<= z 2.5e+22) (+ (/ (* t y) (- a z)) x) t_1))))
        double code(double x, double y, double z, double t, double a) {
        	double t_1 = fma(-t, (z / (a - z)), x);
        	double tmp;
        	if (z <= -0.55) {
        		tmp = t_1;
        	} else if (z <= 2.5e+22) {
        		tmp = ((t * y) / (a - z)) + x;
        	} else {
        		tmp = t_1;
        	}
        	return tmp;
        }
        
        function code(x, y, z, t, a)
        	t_1 = fma(Float64(-t), Float64(z / Float64(a - z)), x)
        	tmp = 0.0
        	if (z <= -0.55)
        		tmp = t_1;
        	elseif (z <= 2.5e+22)
        		tmp = Float64(Float64(Float64(t * y) / Float64(a - z)) + x);
        	else
        		tmp = t_1;
        	end
        	return tmp
        end
        
        code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[((-t) * N[(z / N[(a - z), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision]}, If[LessEqual[z, -0.55], t$95$1, If[LessEqual[z, 2.5e+22], N[(N[(N[(t * y), $MachinePrecision] / N[(a - z), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision], t$95$1]]]
        
        \begin{array}{l}
        
        \\
        \begin{array}{l}
        t_1 := \mathsf{fma}\left(-t, \frac{z}{a - z}, x\right)\\
        \mathbf{if}\;z \leq -0.55:\\
        \;\;\;\;t\_1\\
        
        \mathbf{elif}\;z \leq 2.5 \cdot 10^{+22}:\\
        \;\;\;\;\frac{t \cdot y}{a - z} + x\\
        
        \mathbf{else}:\\
        \;\;\;\;t\_1\\
        
        
        \end{array}
        \end{array}
        
        Derivation
        1. Split input into 2 regimes
        2. if z < -0.55000000000000004 or 2.4999999999999998e22 < z

          1. Initial program 67.1%

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

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

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

              \[\leadsto -1 \cdot \color{blue}{\left(t \cdot \frac{z}{a - z}\right)} + x \]
            3. associate-*r*N/A

              \[\leadsto \color{blue}{\left(-1 \cdot t\right) \cdot \frac{z}{a - z}} + x \]
            4. lower-fma.f64N/A

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

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

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

              \[\leadsto \mathsf{fma}\left(-t, \color{blue}{\frac{z}{a - z}}, x\right) \]
            8. lower--.f6490.5

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

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

          if -0.55000000000000004 < z < 2.4999999999999998e22

          1. Initial program 95.4%

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

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

              \[\leadsto x + \frac{\color{blue}{y \cdot t}}{a - z} \]
            2. lower-*.f6485.9

              \[\leadsto x + \frac{\color{blue}{y \cdot t}}{a - z} \]
          5. Applied rewrites85.9%

            \[\leadsto x + \frac{\color{blue}{y \cdot t}}{a - z} \]
        3. Recombined 2 regimes into one program.
        4. Final simplification88.2%

          \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -0.55:\\ \;\;\;\;\mathsf{fma}\left(-t, \frac{z}{a - z}, x\right)\\ \mathbf{elif}\;z \leq 2.5 \cdot 10^{+22}:\\ \;\;\;\;\frac{t \cdot y}{a - z} + x\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(-t, \frac{z}{a - z}, x\right)\\ \end{array} \]
        5. Add Preprocessing

        Alternative 7: 82.5% accurate, 0.8× speedup?

        \[\begin{array}{l} \\ \begin{array}{l} t_1 := \mathsf{fma}\left(1 - \frac{y}{z}, t, x\right)\\ \mathbf{if}\;z \leq -2.7 \cdot 10^{-34}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq 1.46 \cdot 10^{-33}:\\ \;\;\;\;\mathsf{fma}\left(y, \frac{t}{a}, x\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
        (FPCore (x y z t a)
         :precision binary64
         (let* ((t_1 (fma (- 1.0 (/ y z)) t x)))
           (if (<= z -2.7e-34) t_1 (if (<= z 1.46e-33) (fma y (/ t a) x) t_1))))
        double code(double x, double y, double z, double t, double a) {
        	double t_1 = fma((1.0 - (y / z)), t, x);
        	double tmp;
        	if (z <= -2.7e-34) {
        		tmp = t_1;
        	} else if (z <= 1.46e-33) {
        		tmp = fma(y, (t / a), x);
        	} else {
        		tmp = t_1;
        	}
        	return tmp;
        }
        
        function code(x, y, z, t, a)
        	t_1 = fma(Float64(1.0 - Float64(y / z)), t, x)
        	tmp = 0.0
        	if (z <= -2.7e-34)
        		tmp = t_1;
        	elseif (z <= 1.46e-33)
        		tmp = fma(y, Float64(t / 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[(y / z), $MachinePrecision]), $MachinePrecision] * t + x), $MachinePrecision]}, If[LessEqual[z, -2.7e-34], t$95$1, If[LessEqual[z, 1.46e-33], N[(y * N[(t / a), $MachinePrecision] + x), $MachinePrecision], t$95$1]]]
        
        \begin{array}{l}
        
        \\
        \begin{array}{l}
        t_1 := \mathsf{fma}\left(1 - \frac{y}{z}, t, x\right)\\
        \mathbf{if}\;z \leq -2.7 \cdot 10^{-34}:\\
        \;\;\;\;t\_1\\
        
        \mathbf{elif}\;z \leq 1.46 \cdot 10^{-33}:\\
        \;\;\;\;\mathsf{fma}\left(y, \frac{t}{a}, x\right)\\
        
        \mathbf{else}:\\
        \;\;\;\;t\_1\\
        
        
        \end{array}
        \end{array}
        
        Derivation
        1. Split input into 2 regimes
        2. if z < -2.70000000000000017e-34 or 1.45999999999999999e-33 < z

          1. Initial program 70.3%

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

              \[\leadsto \mathsf{fma}\left(\color{blue}{1 - \frac{y}{z}}, t, x\right) \]
            17. lower-/.f6486.5

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

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

          if -2.70000000000000017e-34 < z < 1.45999999999999999e-33

          1. Initial program 94.8%

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

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

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

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

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

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

              \[\leadsto x + \color{blue}{\frac{y - z}{\frac{a - z}{t}}} \]
            7. lower-/.f6497.8

              \[\leadsto x + \frac{y - z}{\color{blue}{\frac{a - z}{t}}} \]
          4. Applied rewrites97.8%

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

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

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

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

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

              \[\leadsto \color{blue}{\mathsf{fma}\left(y, \frac{t}{a}, x\right)} \]
            5. lower-/.f6479.1

              \[\leadsto \mathsf{fma}\left(y, \color{blue}{\frac{t}{a}}, x\right) \]
          7. Applied rewrites79.1%

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

        Alternative 8: 76.7% accurate, 0.9× speedup?

        \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -5.8 \cdot 10^{-9}:\\ \;\;\;\;t + x\\ \mathbf{elif}\;z \leq 1.46 \cdot 10^{-33}:\\ \;\;\;\;\mathsf{fma}\left(y, \frac{t}{a}, x\right)\\ \mathbf{else}:\\ \;\;\;\;t + x\\ \end{array} \end{array} \]
        (FPCore (x y z t a)
         :precision binary64
         (if (<= z -5.8e-9) (+ t x) (if (<= z 1.46e-33) (fma y (/ t a) x) (+ t x))))
        double code(double x, double y, double z, double t, double a) {
        	double tmp;
        	if (z <= -5.8e-9) {
        		tmp = t + x;
        	} else if (z <= 1.46e-33) {
        		tmp = fma(y, (t / a), x);
        	} else {
        		tmp = t + x;
        	}
        	return tmp;
        }
        
        function code(x, y, z, t, a)
        	tmp = 0.0
        	if (z <= -5.8e-9)
        		tmp = Float64(t + x);
        	elseif (z <= 1.46e-33)
        		tmp = fma(y, Float64(t / a), x);
        	else
        		tmp = Float64(t + x);
        	end
        	return tmp
        end
        
        code[x_, y_, z_, t_, a_] := If[LessEqual[z, -5.8e-9], N[(t + x), $MachinePrecision], If[LessEqual[z, 1.46e-33], N[(y * N[(t / a), $MachinePrecision] + x), $MachinePrecision], N[(t + x), $MachinePrecision]]]
        
        \begin{array}{l}
        
        \\
        \begin{array}{l}
        \mathbf{if}\;z \leq -5.8 \cdot 10^{-9}:\\
        \;\;\;\;t + x\\
        
        \mathbf{elif}\;z \leq 1.46 \cdot 10^{-33}:\\
        \;\;\;\;\mathsf{fma}\left(y, \frac{t}{a}, x\right)\\
        
        \mathbf{else}:\\
        \;\;\;\;t + x\\
        
        
        \end{array}
        \end{array}
        
        Derivation
        1. Split input into 2 regimes
        2. if z < -5.79999999999999982e-9 or 1.45999999999999999e-33 < z

          1. Initial program 70.3%

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

            \[\leadsto \color{blue}{t + x} \]
          4. Step-by-step derivation
            1. lower-+.f6479.2

              \[\leadsto \color{blue}{t + x} \]
          5. Applied rewrites79.2%

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

          if -5.79999999999999982e-9 < z < 1.45999999999999999e-33

          1. Initial program 94.8%

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

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

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

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

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

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

              \[\leadsto x + \color{blue}{\frac{y - z}{\frac{a - z}{t}}} \]
            7. lower-/.f6497.8

              \[\leadsto x + \frac{y - z}{\color{blue}{\frac{a - z}{t}}} \]
          4. Applied rewrites97.8%

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

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

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

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

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

              \[\leadsto \color{blue}{\mathsf{fma}\left(y, \frac{t}{a}, x\right)} \]
            5. lower-/.f6479.1

              \[\leadsto \mathsf{fma}\left(y, \color{blue}{\frac{t}{a}}, x\right) \]
          7. Applied rewrites79.1%

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

        Alternative 9: 76.5% accurate, 0.9× speedup?

        \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -5.8 \cdot 10^{-9}:\\ \;\;\;\;t + x\\ \mathbf{elif}\;z \leq 1.46 \cdot 10^{-33}:\\ \;\;\;\;\mathsf{fma}\left(\frac{y}{a}, t, x\right)\\ \mathbf{else}:\\ \;\;\;\;t + x\\ \end{array} \end{array} \]
        (FPCore (x y z t a)
         :precision binary64
         (if (<= z -5.8e-9) (+ t x) (if (<= z 1.46e-33) (fma (/ y a) t x) (+ t x))))
        double code(double x, double y, double z, double t, double a) {
        	double tmp;
        	if (z <= -5.8e-9) {
        		tmp = t + x;
        	} else if (z <= 1.46e-33) {
        		tmp = fma((y / a), t, x);
        	} else {
        		tmp = t + x;
        	}
        	return tmp;
        }
        
        function code(x, y, z, t, a)
        	tmp = 0.0
        	if (z <= -5.8e-9)
        		tmp = Float64(t + x);
        	elseif (z <= 1.46e-33)
        		tmp = fma(Float64(y / a), t, x);
        	else
        		tmp = Float64(t + x);
        	end
        	return tmp
        end
        
        code[x_, y_, z_, t_, a_] := If[LessEqual[z, -5.8e-9], N[(t + x), $MachinePrecision], If[LessEqual[z, 1.46e-33], N[(N[(y / a), $MachinePrecision] * t + x), $MachinePrecision], N[(t + x), $MachinePrecision]]]
        
        \begin{array}{l}
        
        \\
        \begin{array}{l}
        \mathbf{if}\;z \leq -5.8 \cdot 10^{-9}:\\
        \;\;\;\;t + x\\
        
        \mathbf{elif}\;z \leq 1.46 \cdot 10^{-33}:\\
        \;\;\;\;\mathsf{fma}\left(\frac{y}{a}, t, x\right)\\
        
        \mathbf{else}:\\
        \;\;\;\;t + x\\
        
        
        \end{array}
        \end{array}
        
        Derivation
        1. Split input into 2 regimes
        2. if z < -5.79999999999999982e-9 or 1.45999999999999999e-33 < z

          1. Initial program 70.3%

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

            \[\leadsto \color{blue}{t + x} \]
          4. Step-by-step derivation
            1. lower-+.f6479.2

              \[\leadsto \color{blue}{t + x} \]
          5. Applied rewrites79.2%

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

          if -5.79999999999999982e-9 < z < 1.45999999999999999e-33

          1. Initial program 94.8%

            \[x + \frac{\left(y - z\right) \cdot t}{a - z} \]
          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-/.f6475.6

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

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

        Alternative 10: 59.8% accurate, 0.9× speedup?

        \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -2.1 \cdot 10^{-209}:\\ \;\;\;\;t + x\\ \mathbf{elif}\;z \leq 1.86 \cdot 10^{-165}:\\ \;\;\;\;\frac{t}{a} \cdot y\\ \mathbf{else}:\\ \;\;\;\;t + x\\ \end{array} \end{array} \]
        (FPCore (x y z t a)
         :precision binary64
         (if (<= z -2.1e-209) (+ t x) (if (<= z 1.86e-165) (* (/ t a) y) (+ t x))))
        double code(double x, double y, double z, double t, double a) {
        	double tmp;
        	if (z <= -2.1e-209) {
        		tmp = t + x;
        	} else if (z <= 1.86e-165) {
        		tmp = (t / a) * y;
        	} else {
        		tmp = 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 <= (-2.1d-209)) then
                tmp = t + x
            else if (z <= 1.86d-165) then
                tmp = (t / a) * y
            else
                tmp = 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 <= -2.1e-209) {
        		tmp = t + x;
        	} else if (z <= 1.86e-165) {
        		tmp = (t / a) * y;
        	} else {
        		tmp = t + x;
        	}
        	return tmp;
        }
        
        def code(x, y, z, t, a):
        	tmp = 0
        	if z <= -2.1e-209:
        		tmp = t + x
        	elif z <= 1.86e-165:
        		tmp = (t / a) * y
        	else:
        		tmp = t + x
        	return tmp
        
        function code(x, y, z, t, a)
        	tmp = 0.0
        	if (z <= -2.1e-209)
        		tmp = Float64(t + x);
        	elseif (z <= 1.86e-165)
        		tmp = Float64(Float64(t / a) * y);
        	else
        		tmp = Float64(t + x);
        	end
        	return tmp
        end
        
        function tmp_2 = code(x, y, z, t, a)
        	tmp = 0.0;
        	if (z <= -2.1e-209)
        		tmp = t + x;
        	elseif (z <= 1.86e-165)
        		tmp = (t / a) * y;
        	else
        		tmp = t + x;
        	end
        	tmp_2 = tmp;
        end
        
        code[x_, y_, z_, t_, a_] := If[LessEqual[z, -2.1e-209], N[(t + x), $MachinePrecision], If[LessEqual[z, 1.86e-165], N[(N[(t / a), $MachinePrecision] * y), $MachinePrecision], N[(t + x), $MachinePrecision]]]
        
        \begin{array}{l}
        
        \\
        \begin{array}{l}
        \mathbf{if}\;z \leq -2.1 \cdot 10^{-209}:\\
        \;\;\;\;t + x\\
        
        \mathbf{elif}\;z \leq 1.86 \cdot 10^{-165}:\\
        \;\;\;\;\frac{t}{a} \cdot y\\
        
        \mathbf{else}:\\
        \;\;\;\;t + x\\
        
        
        \end{array}
        \end{array}
        
        Derivation
        1. Split input into 2 regimes
        2. if z < -2.09999999999999996e-209 or 1.86000000000000002e-165 < z

          1. Initial program 78.8%

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

            \[\leadsto \color{blue}{t + x} \]
          4. Step-by-step derivation
            1. lower-+.f6470.4

              \[\leadsto \color{blue}{t + x} \]
          5. Applied rewrites70.4%

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

          if -2.09999999999999996e-209 < z < 1.86000000000000002e-165

          1. Initial program 91.5%

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

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

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

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

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

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

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

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

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

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

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

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

              \[\leadsto \frac{t}{\color{blue}{a - z}} \cdot \left(y - z\right) \]
            12. lower--.f6462.2

              \[\leadsto \frac{t}{a - z} \cdot \color{blue}{\left(y - z\right)} \]
          5. Applied rewrites62.2%

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

            \[\leadsto \frac{t \cdot y}{\color{blue}{a}} \]
          7. Step-by-step derivation
            1. Applied rewrites47.6%

              \[\leadsto \frac{y \cdot t}{\color{blue}{a}} \]
            2. Step-by-step derivation
              1. Applied rewrites53.9%

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

            Alternative 11: 60.1% accurate, 6.5× speedup?

            \[\begin{array}{l} \\ t + x \end{array} \]
            (FPCore (x y z t a) :precision binary64 (+ t x))
            double code(double x, double y, double z, double t, double a) {
            	return 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 = t + x
            end function
            
            public static double code(double x, double y, double z, double t, double a) {
            	return t + x;
            }
            
            def code(x, y, z, t, a):
            	return t + x
            
            function code(x, y, z, t, a)
            	return Float64(t + x)
            end
            
            function tmp = code(x, y, z, t, a)
            	tmp = t + x;
            end
            
            code[x_, y_, z_, t_, a_] := N[(t + x), $MachinePrecision]
            
            \begin{array}{l}
            
            \\
            t + x
            \end{array}
            
            Derivation
            1. Initial program 81.1%

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

              \[\leadsto \color{blue}{t + x} \]
            4. Step-by-step derivation
              1. lower-+.f6461.7

                \[\leadsto \color{blue}{t + x} \]
            5. Applied rewrites61.7%

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

            Developer Target 1: 99.0% accurate, 0.7× speedup?

            \[\begin{array}{l} \\ \begin{array}{l} t_1 := x + \frac{y - z}{a - z} \cdot t\\ \mathbf{if}\;t < -1.0682974490174067 \cdot 10^{-39}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;t < 3.9110949887586375 \cdot 10^{-141}:\\ \;\;\;\;x + \frac{\left(y - z\right) \cdot t}{a - z}\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
            (FPCore (x y z t a)
             :precision binary64
             (let* ((t_1 (+ x (* (/ (- y z) (- a z)) t))))
               (if (< t -1.0682974490174067e-39)
                 t_1
                 (if (< t 3.9110949887586375e-141) (+ x (/ (* (- y z) t) (- a z))) t_1))))
            double code(double x, double y, double z, double t, double a) {
            	double t_1 = x + (((y - z) / (a - z)) * t);
            	double tmp;
            	if (t < -1.0682974490174067e-39) {
            		tmp = t_1;
            	} else if (t < 3.9110949887586375e-141) {
            		tmp = x + (((y - z) * t) / (a - z));
            	} else {
            		tmp = t_1;
            	}
            	return tmp;
            }
            
            real(8) function code(x, y, z, t, a)
                real(8), intent (in) :: x
                real(8), intent (in) :: y
                real(8), intent (in) :: z
                real(8), intent (in) :: t
                real(8), intent (in) :: a
                real(8) :: t_1
                real(8) :: tmp
                t_1 = x + (((y - z) / (a - z)) * t)
                if (t < (-1.0682974490174067d-39)) then
                    tmp = t_1
                else if (t < 3.9110949887586375d-141) then
                    tmp = x + (((y - z) * t) / (a - z))
                else
                    tmp = t_1
                end if
                code = tmp
            end function
            
            public static double code(double x, double y, double z, double t, double a) {
            	double t_1 = x + (((y - z) / (a - z)) * t);
            	double tmp;
            	if (t < -1.0682974490174067e-39) {
            		tmp = t_1;
            	} else if (t < 3.9110949887586375e-141) {
            		tmp = x + (((y - z) * t) / (a - z));
            	} else {
            		tmp = t_1;
            	}
            	return tmp;
            }
            
            def code(x, y, z, t, a):
            	t_1 = x + (((y - z) / (a - z)) * t)
            	tmp = 0
            	if t < -1.0682974490174067e-39:
            		tmp = t_1
            	elif t < 3.9110949887586375e-141:
            		tmp = x + (((y - z) * t) / (a - z))
            	else:
            		tmp = t_1
            	return tmp
            
            function code(x, y, z, t, a)
            	t_1 = Float64(x + Float64(Float64(Float64(y - z) / Float64(a - z)) * t))
            	tmp = 0.0
            	if (t < -1.0682974490174067e-39)
            		tmp = t_1;
            	elseif (t < 3.9110949887586375e-141)
            		tmp = Float64(x + Float64(Float64(Float64(y - z) * t) / Float64(a - z)));
            	else
            		tmp = t_1;
            	end
            	return tmp
            end
            
            function tmp_2 = code(x, y, z, t, a)
            	t_1 = x + (((y - z) / (a - z)) * t);
            	tmp = 0.0;
            	if (t < -1.0682974490174067e-39)
            		tmp = t_1;
            	elseif (t < 3.9110949887586375e-141)
            		tmp = x + (((y - z) * t) / (a - z));
            	else
            		tmp = t_1;
            	end
            	tmp_2 = tmp;
            end
            
            code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(x + N[(N[(N[(y - z), $MachinePrecision] / N[(a - z), $MachinePrecision]), $MachinePrecision] * t), $MachinePrecision]), $MachinePrecision]}, If[Less[t, -1.0682974490174067e-39], t$95$1, If[Less[t, 3.9110949887586375e-141], N[(x + N[(N[(N[(y - z), $MachinePrecision] * t), $MachinePrecision] / N[(a - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]
            
            \begin{array}{l}
            
            \\
            \begin{array}{l}
            t_1 := x + \frac{y - z}{a - z} \cdot t\\
            \mathbf{if}\;t < -1.0682974490174067 \cdot 10^{-39}:\\
            \;\;\;\;t\_1\\
            
            \mathbf{elif}\;t < 3.9110949887586375 \cdot 10^{-141}:\\
            \;\;\;\;x + \frac{\left(y - z\right) \cdot t}{a - z}\\
            
            \mathbf{else}:\\
            \;\;\;\;t\_1\\
            
            
            \end{array}
            \end{array}
            

            Reproduce

            ?
            herbie shell --seed 2024244 
            (FPCore (x y z t a)
              :name "Graphics.Rendering.Plot.Render.Plot.Axis:renderAxisTick from plot-0.2.3.4, A"
              :precision binary64
            
              :alt
              (! :herbie-platform default (if (< t -10682974490174067/10000000000000000000000000000000000000000000000000000000) (+ x (* (/ (- y z) (- a z)) t)) (if (< t 312887599100691/80000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) (+ x (/ (* (- y z) t) (- a z))) (+ x (* (/ (- y z) (- a z)) t)))))
            
              (+ x (/ (* (- y z) t) (- a z))))