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

Percentage Accurate: 85.4% → 98.1%
Time: 8.9s
Alternatives: 12
Speedup: 1.1×

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 12 alternatives:

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

Initial Program: 85.4% 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: 98.1% accurate, 1.1× speedup?

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

\\
\mathsf{fma}\left(\frac{y - z}{a - z}, t, x\right)
\end{array}
Derivation
  1. Initial program 87.4%

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

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

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

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

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

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

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

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

      \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y - z}{a - z}, t, x\right)} \]
    9. lower-/.f6497.7

      \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y - z}{a - z}}, t, x\right) \]
  4. Applied rewrites97.7%

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

Alternative 2: 59.7% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\frac{\left(y - z\right) \cdot t}{a - z} \leq -1 \cdot 10^{+170}:\\ \;\;\;\;t \cdot \frac{y}{a}\\ \mathbf{else}:\\ \;\;\;\;t + x\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (if (<= (/ (* (- y z) t) (- a z)) -1e+170) (* t (/ y a)) (+ t x)))
double code(double x, double y, double z, double t, double a) {
	double tmp;
	if ((((y - z) * t) / (a - z)) <= -1e+170) {
		tmp = t * (y / a);
	} 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 ((((y - z) * t) / (a - z)) <= (-1d+170)) then
        tmp = t * (y / a)
    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 ((((y - z) * t) / (a - z)) <= -1e+170) {
		tmp = t * (y / a);
	} else {
		tmp = t + x;
	}
	return tmp;
}
def code(x, y, z, t, a):
	tmp = 0
	if (((y - z) * t) / (a - z)) <= -1e+170:
		tmp = t * (y / a)
	else:
		tmp = t + x
	return tmp
function code(x, y, z, t, a)
	tmp = 0.0
	if (Float64(Float64(Float64(y - z) * t) / Float64(a - z)) <= -1e+170)
		tmp = Float64(t * Float64(y / a));
	else
		tmp = Float64(t + x);
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a)
	tmp = 0.0;
	if ((((y - z) * t) / (a - z)) <= -1e+170)
		tmp = t * (y / a);
	else
		tmp = t + x;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_] := If[LessEqual[N[(N[(N[(y - z), $MachinePrecision] * t), $MachinePrecision] / N[(a - z), $MachinePrecision]), $MachinePrecision], -1e+170], N[(t * N[(y / a), $MachinePrecision]), $MachinePrecision], N[(t + x), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;\frac{\left(y - z\right) \cdot t}{a - z} \leq -1 \cdot 10^{+170}:\\
\;\;\;\;t \cdot \frac{y}{a}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (/.f64 (*.f64 (-.f64 y z) t) (-.f64 a z)) < -1.00000000000000003e170

    1. Initial program 48.2%

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

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

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

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

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

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

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

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

        \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y - z}{a - z}, t, x\right)} \]
      9. lower-/.f6499.7

        \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y - z}{a - z}}, t, x\right) \]
    4. Applied rewrites99.7%

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

      \[\leadsto \color{blue}{\frac{t \cdot y}{a - z}} \]
    6. Step-by-step derivation
      1. lower-/.f64N/A

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

        \[\leadsto \frac{\color{blue}{t \cdot y}}{a - z} \]
      3. lower--.f6445.1

        \[\leadsto \frac{t \cdot y}{\color{blue}{a - z}} \]
    7. Applied rewrites45.1%

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

      \[\leadsto \frac{t \cdot y}{\color{blue}{a}} \]
    9. Step-by-step derivation
      1. Applied rewrites49.4%

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

      if -1.00000000000000003e170 < (/.f64 (*.f64 (-.f64 y z) t) (-.f64 a z))

      1. Initial program 93.8%

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

        \[\leadsto \color{blue}{t + x} \]
      4. Step-by-step derivation
        1. lower-+.f6465.4

          \[\leadsto \color{blue}{t + x} \]
      5. Applied rewrites65.4%

        \[\leadsto \color{blue}{t + x} \]
    10. Recombined 2 regimes into one program.
    11. Add Preprocessing

    Alternative 3: 73.8% accurate, 0.6× speedup?

    \[\begin{array}{l} \\ \begin{array}{l} t_1 := \mathsf{fma}\left(-z, \frac{t}{a}, x\right)\\ \mathbf{if}\;z \leq -1.15 \cdot 10^{+85}:\\ \;\;\;\;t + x\\ \mathbf{elif}\;z \leq -7.5 \cdot 10^{-73}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq 3 \cdot 10^{+57}:\\ \;\;\;\;\mathsf{fma}\left(y, \frac{t}{a}, x\right)\\ \mathbf{elif}\;z \leq 1.42 \cdot 10^{+135}:\\ \;\;\;\;t\_1\\ \mathbf{else}:\\ \;\;\;\;t + x\\ \end{array} \end{array} \]
    (FPCore (x y z t a)
     :precision binary64
     (let* ((t_1 (fma (- z) (/ t a) x)))
       (if (<= z -1.15e+85)
         (+ t x)
         (if (<= z -7.5e-73)
           t_1
           (if (<= z 3e+57)
             (fma y (/ t a) x)
             (if (<= z 1.42e+135) t_1 (+ t x)))))))
    double code(double x, double y, double z, double t, double a) {
    	double t_1 = fma(-z, (t / a), x);
    	double tmp;
    	if (z <= -1.15e+85) {
    		tmp = t + x;
    	} else if (z <= -7.5e-73) {
    		tmp = t_1;
    	} else if (z <= 3e+57) {
    		tmp = fma(y, (t / a), x);
    	} else if (z <= 1.42e+135) {
    		tmp = t_1;
    	} else {
    		tmp = t + x;
    	}
    	return tmp;
    }
    
    function code(x, y, z, t, a)
    	t_1 = fma(Float64(-z), Float64(t / a), x)
    	tmp = 0.0
    	if (z <= -1.15e+85)
    		tmp = Float64(t + x);
    	elseif (z <= -7.5e-73)
    		tmp = t_1;
    	elseif (z <= 3e+57)
    		tmp = fma(y, Float64(t / a), x);
    	elseif (z <= 1.42e+135)
    		tmp = t_1;
    	else
    		tmp = Float64(t + x);
    	end
    	return tmp
    end
    
    code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[((-z) * N[(t / a), $MachinePrecision] + x), $MachinePrecision]}, If[LessEqual[z, -1.15e+85], N[(t + x), $MachinePrecision], If[LessEqual[z, -7.5e-73], t$95$1, If[LessEqual[z, 3e+57], N[(y * N[(t / a), $MachinePrecision] + x), $MachinePrecision], If[LessEqual[z, 1.42e+135], t$95$1, N[(t + x), $MachinePrecision]]]]]]
    
    \begin{array}{l}
    
    \\
    \begin{array}{l}
    t_1 := \mathsf{fma}\left(-z, \frac{t}{a}, x\right)\\
    \mathbf{if}\;z \leq -1.15 \cdot 10^{+85}:\\
    \;\;\;\;t + x\\
    
    \mathbf{elif}\;z \leq -7.5 \cdot 10^{-73}:\\
    \;\;\;\;t\_1\\
    
    \mathbf{elif}\;z \leq 3 \cdot 10^{+57}:\\
    \;\;\;\;\mathsf{fma}\left(y, \frac{t}{a}, x\right)\\
    
    \mathbf{elif}\;z \leq 1.42 \cdot 10^{+135}:\\
    \;\;\;\;t\_1\\
    
    \mathbf{else}:\\
    \;\;\;\;t + x\\
    
    
    \end{array}
    \end{array}
    
    Derivation
    1. Split input into 3 regimes
    2. if z < -1.1499999999999999e85 or 1.41999999999999998e135 < z

      1. Initial program 70.2%

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

        \[\leadsto \color{blue}{t + x} \]
      4. Step-by-step derivation
        1. lower-+.f6485.9

          \[\leadsto \color{blue}{t + x} \]
      5. Applied rewrites85.9%

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

      if -1.1499999999999999e85 < z < -7.5e-73 or 3e57 < z < 1.41999999999999998e135

      1. Initial program 91.1%

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

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

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

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

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

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

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

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

          \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y - z}{a - z}, t, x\right)} \]
        9. lower-/.f6497.7

          \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y - z}{a - z}}, t, x\right) \]
      4. Applied rewrites97.7%

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

        \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y}{a - z}}, t, x\right) \]
      6. Step-by-step derivation
        1. lower-/.f64N/A

          \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y}{a - z}}, t, x\right) \]
        2. lower--.f6462.6

          \[\leadsto \mathsf{fma}\left(\frac{y}{\color{blue}{a - z}}, t, x\right) \]
      7. Applied rewrites62.6%

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

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

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

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

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

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

          \[\leadsto \mathsf{fma}\left(\color{blue}{y - z}, \frac{t}{a}, x\right) \]
        6. lower-/.f6474.5

          \[\leadsto \mathsf{fma}\left(y - z, \color{blue}{\frac{t}{a}}, x\right) \]
      10. Applied rewrites74.5%

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

        \[\leadsto \mathsf{fma}\left(-1 \cdot z, \frac{\color{blue}{t}}{a}, x\right) \]
      12. Step-by-step derivation
        1. Applied rewrites74.2%

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

        if -7.5e-73 < z < 3e57

        1. Initial program 97.0%

          \[x + \frac{\left(y - z\right) \cdot t}{a - z} \]
        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. *-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-/.f6484.1

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

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

      Alternative 4: 87.3% accurate, 0.7× speedup?

      \[\begin{array}{l} \\ \begin{array}{l} t_1 := \mathsf{fma}\left(\frac{y}{a - z}, t, x\right)\\ \mathbf{if}\;y \leq -2.8 \cdot 10^{+17}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;y \leq 6.6 \cdot 10^{-90}:\\ \;\;\;\;\mathsf{fma}\left(\frac{-z}{a - z}, t, x\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
      (FPCore (x y z t a)
       :precision binary64
       (let* ((t_1 (fma (/ y (- a z)) t x)))
         (if (<= y -2.8e+17)
           t_1
           (if (<= y 6.6e-90) (fma (/ (- z) (- a z)) t x) t_1))))
      double code(double x, double y, double z, double t, double a) {
      	double t_1 = fma((y / (a - z)), t, x);
      	double tmp;
      	if (y <= -2.8e+17) {
      		tmp = t_1;
      	} else if (y <= 6.6e-90) {
      		tmp = fma((-z / (a - z)), t, x);
      	} else {
      		tmp = t_1;
      	}
      	return tmp;
      }
      
      function code(x, y, z, t, a)
      	t_1 = fma(Float64(y / Float64(a - z)), t, x)
      	tmp = 0.0
      	if (y <= -2.8e+17)
      		tmp = t_1;
      	elseif (y <= 6.6e-90)
      		tmp = fma(Float64(Float64(-z) / Float64(a - z)), t, x);
      	else
      		tmp = t_1;
      	end
      	return tmp
      end
      
      code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(N[(y / N[(a - z), $MachinePrecision]), $MachinePrecision] * t + x), $MachinePrecision]}, If[LessEqual[y, -2.8e+17], t$95$1, If[LessEqual[y, 6.6e-90], N[(N[((-z) / N[(a - z), $MachinePrecision]), $MachinePrecision] * t + x), $MachinePrecision], t$95$1]]]
      
      \begin{array}{l}
      
      \\
      \begin{array}{l}
      t_1 := \mathsf{fma}\left(\frac{y}{a - z}, t, x\right)\\
      \mathbf{if}\;y \leq -2.8 \cdot 10^{+17}:\\
      \;\;\;\;t\_1\\
      
      \mathbf{elif}\;y \leq 6.6 \cdot 10^{-90}:\\
      \;\;\;\;\mathsf{fma}\left(\frac{-z}{a - z}, t, x\right)\\
      
      \mathbf{else}:\\
      \;\;\;\;t\_1\\
      
      
      \end{array}
      \end{array}
      
      Derivation
      1. Split input into 2 regimes
      2. if y < -2.8e17 or 6.6e-90 < y

        1. Initial program 87.3%

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

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

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

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

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

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

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

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

            \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y - z}{a - z}, t, x\right)} \]
          9. lower-/.f6496.3

            \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y - z}{a - z}}, t, x\right) \]
        4. Applied rewrites96.3%

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

          \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y}{a - z}}, t, x\right) \]
        6. Step-by-step derivation
          1. lower-/.f64N/A

            \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y}{a - z}}, t, x\right) \]
          2. lower--.f6484.3

            \[\leadsto \mathsf{fma}\left(\frac{y}{\color{blue}{a - z}}, t, x\right) \]
        7. Applied rewrites84.3%

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

        if -2.8e17 < y < 6.6e-90

        1. Initial program 87.5%

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

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

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

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

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

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

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

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

            \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y - z}{a - z}, t, x\right)} \]
          9. lower-/.f6499.2

            \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y - z}{a - z}}, t, x\right) \]
        4. Applied rewrites99.2%

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

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

            \[\leadsto \mathsf{fma}\left(\frac{\color{blue}{\mathsf{neg}\left(z\right)}}{a - z}, t, x\right) \]
          2. lower-neg.f6494.3

            \[\leadsto \mathsf{fma}\left(\frac{\color{blue}{-z}}{a - z}, t, x\right) \]
        7. Applied rewrites94.3%

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

      Alternative 5: 86.2% accurate, 0.7× speedup?

      \[\begin{array}{l} \\ \begin{array}{l} t_1 := \mathsf{fma}\left(\frac{y}{a - z}, t, x\right)\\ \mathbf{if}\;y \leq -2.8 \cdot 10^{+17}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;y \leq 5.2 \cdot 10^{+48}:\\ \;\;\;\;x + z \cdot \frac{t}{z - a}\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
      (FPCore (x y z t a)
       :precision binary64
       (let* ((t_1 (fma (/ y (- a z)) t x)))
         (if (<= y -2.8e+17) t_1 (if (<= y 5.2e+48) (+ x (* z (/ t (- z a)))) t_1))))
      double code(double x, double y, double z, double t, double a) {
      	double t_1 = fma((y / (a - z)), t, x);
      	double tmp;
      	if (y <= -2.8e+17) {
      		tmp = t_1;
      	} else if (y <= 5.2e+48) {
      		tmp = x + (z * (t / (z - a)));
      	} else {
      		tmp = t_1;
      	}
      	return tmp;
      }
      
      function code(x, y, z, t, a)
      	t_1 = fma(Float64(y / Float64(a - z)), t, x)
      	tmp = 0.0
      	if (y <= -2.8e+17)
      		tmp = t_1;
      	elseif (y <= 5.2e+48)
      		tmp = Float64(x + Float64(z * Float64(t / Float64(z - a))));
      	else
      		tmp = t_1;
      	end
      	return tmp
      end
      
      code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(N[(y / N[(a - z), $MachinePrecision]), $MachinePrecision] * t + x), $MachinePrecision]}, If[LessEqual[y, -2.8e+17], t$95$1, If[LessEqual[y, 5.2e+48], N[(x + N[(z * N[(t / N[(z - a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]
      
      \begin{array}{l}
      
      \\
      \begin{array}{l}
      t_1 := \mathsf{fma}\left(\frac{y}{a - z}, t, x\right)\\
      \mathbf{if}\;y \leq -2.8 \cdot 10^{+17}:\\
      \;\;\;\;t\_1\\
      
      \mathbf{elif}\;y \leq 5.2 \cdot 10^{+48}:\\
      \;\;\;\;x + z \cdot \frac{t}{z - a}\\
      
      \mathbf{else}:\\
      \;\;\;\;t\_1\\
      
      
      \end{array}
      \end{array}
      
      Derivation
      1. Split input into 2 regimes
      2. if y < -2.8e17 or 5.1999999999999999e48 < y

        1. Initial program 85.3%

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

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

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

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

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

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

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

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

            \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y - z}{a - z}, t, x\right)} \]
          9. lower-/.f6495.2

            \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y - z}{a - z}}, t, x\right) \]
        4. Applied rewrites95.2%

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

          \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y}{a - z}}, t, x\right) \]
        6. Step-by-step derivation
          1. lower-/.f64N/A

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

            \[\leadsto \mathsf{fma}\left(\frac{y}{\color{blue}{a - z}}, t, x\right) \]
        7. Applied rewrites85.2%

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

        if -2.8e17 < y < 5.1999999999999999e48

        1. Initial program 88.8%

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

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

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

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

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

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

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

            \[\leadsto x - z \cdot \color{blue}{\frac{t}{a - z}} \]
          8. lower--.f6491.4

            \[\leadsto x - z \cdot \frac{t}{\color{blue}{a - z}} \]
        5. Applied rewrites91.4%

          \[\leadsto \color{blue}{x - z \cdot \frac{t}{a - z}} \]
      3. Recombined 2 regimes into one program.
      4. Final simplification88.9%

        \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -2.8 \cdot 10^{+17}:\\ \;\;\;\;\mathsf{fma}\left(\frac{y}{a - z}, t, x\right)\\ \mathbf{elif}\;y \leq 5.2 \cdot 10^{+48}:\\ \;\;\;\;x + z \cdot \frac{t}{z - a}\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(\frac{y}{a - z}, t, x\right)\\ \end{array} \]
      5. Add Preprocessing

      Alternative 6: 87.1% accurate, 0.8× speedup?

      \[\begin{array}{l} \\ \begin{array}{l} t_1 := \mathsf{fma}\left(t, 1 - \frac{y}{z}, x\right)\\ \mathbf{if}\;z \leq -1.15 \cdot 10^{+115}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq 7.8 \cdot 10^{+39}:\\ \;\;\;\;\mathsf{fma}\left(\frac{y}{a - z}, t, x\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
      (FPCore (x y z t a)
       :precision binary64
       (let* ((t_1 (fma t (- 1.0 (/ y z)) x)))
         (if (<= z -1.15e+115) t_1 (if (<= z 7.8e+39) (fma (/ y (- a z)) t x) t_1))))
      double code(double x, double y, double z, double t, double a) {
      	double t_1 = fma(t, (1.0 - (y / z)), x);
      	double tmp;
      	if (z <= -1.15e+115) {
      		tmp = t_1;
      	} else if (z <= 7.8e+39) {
      		tmp = fma((y / (a - z)), t, x);
      	} else {
      		tmp = t_1;
      	}
      	return tmp;
      }
      
      function code(x, y, z, t, a)
      	t_1 = fma(t, Float64(1.0 - Float64(y / z)), x)
      	tmp = 0.0
      	if (z <= -1.15e+115)
      		tmp = t_1;
      	elseif (z <= 7.8e+39)
      		tmp = fma(Float64(y / Float64(a - z)), t, x);
      	else
      		tmp = t_1;
      	end
      	return tmp
      end
      
      code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(t * N[(1.0 - N[(y / z), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision]}, If[LessEqual[z, -1.15e+115], t$95$1, If[LessEqual[z, 7.8e+39], N[(N[(y / N[(a - z), $MachinePrecision]), $MachinePrecision] * t + x), $MachinePrecision], t$95$1]]]
      
      \begin{array}{l}
      
      \\
      \begin{array}{l}
      t_1 := \mathsf{fma}\left(t, 1 - \frac{y}{z}, x\right)\\
      \mathbf{if}\;z \leq -1.15 \cdot 10^{+115}:\\
      \;\;\;\;t\_1\\
      
      \mathbf{elif}\;z \leq 7.8 \cdot 10^{+39}:\\
      \;\;\;\;\mathsf{fma}\left(\frac{y}{a - z}, t, x\right)\\
      
      \mathbf{else}:\\
      \;\;\;\;t\_1\\
      
      
      \end{array}
      \end{array}
      
      Derivation
      1. Split input into 2 regimes
      2. if z < -1.15000000000000002e115 or 7.8000000000000002e39 < z

        1. Initial program 71.9%

          \[x + \frac{\left(y - z\right) \cdot t}{a - z} \]
        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. distribute-rgt-neg-inN/A

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

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

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

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

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

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

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

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

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

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

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

            \[\leadsto \mathsf{fma}\left(t, \color{blue}{1 - \frac{y}{z}}, x\right) \]
          16. lower-/.f6487.6

            \[\leadsto \mathsf{fma}\left(t, 1 - \color{blue}{\frac{y}{z}}, x\right) \]
        5. Applied rewrites87.6%

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

        if -1.15000000000000002e115 < z < 7.8000000000000002e39

        1. Initial program 96.4%

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

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

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

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

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

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

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

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

            \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y - z}{a - z}, t, x\right)} \]
          9. lower-/.f6496.4

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

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

          \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y}{a - z}}, t, x\right) \]
        6. Step-by-step derivation
          1. lower-/.f64N/A

            \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y}{a - z}}, t, x\right) \]
          2. lower--.f6487.1

            \[\leadsto \mathsf{fma}\left(\frac{y}{\color{blue}{a - z}}, t, x\right) \]
        7. Applied rewrites87.1%

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

      Alternative 7: 80.4% accurate, 0.8× speedup?

      \[\begin{array}{l} \\ \begin{array}{l} t_1 := \mathsf{fma}\left(t, 1 - \frac{y}{z}, x\right)\\ \mathbf{if}\;z \leq -1.55 \cdot 10^{+40}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq 1.42 \cdot 10^{+135}:\\ \;\;\;\;\mathsf{fma}\left(y - z, \frac{t}{a}, x\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
      (FPCore (x y z t a)
       :precision binary64
       (let* ((t_1 (fma t (- 1.0 (/ y z)) x)))
         (if (<= z -1.55e+40)
           t_1
           (if (<= z 1.42e+135) (fma (- y z) (/ t a) x) t_1))))
      double code(double x, double y, double z, double t, double a) {
      	double t_1 = fma(t, (1.0 - (y / z)), x);
      	double tmp;
      	if (z <= -1.55e+40) {
      		tmp = t_1;
      	} else if (z <= 1.42e+135) {
      		tmp = fma((y - z), (t / a), x);
      	} else {
      		tmp = t_1;
      	}
      	return tmp;
      }
      
      function code(x, y, z, t, a)
      	t_1 = fma(t, Float64(1.0 - Float64(y / z)), x)
      	tmp = 0.0
      	if (z <= -1.55e+40)
      		tmp = t_1;
      	elseif (z <= 1.42e+135)
      		tmp = fma(Float64(y - z), Float64(t / a), x);
      	else
      		tmp = t_1;
      	end
      	return tmp
      end
      
      code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(t * N[(1.0 - N[(y / z), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision]}, If[LessEqual[z, -1.55e+40], t$95$1, If[LessEqual[z, 1.42e+135], N[(N[(y - z), $MachinePrecision] * N[(t / a), $MachinePrecision] + x), $MachinePrecision], t$95$1]]]
      
      \begin{array}{l}
      
      \\
      \begin{array}{l}
      t_1 := \mathsf{fma}\left(t, 1 - \frac{y}{z}, x\right)\\
      \mathbf{if}\;z \leq -1.55 \cdot 10^{+40}:\\
      \;\;\;\;t\_1\\
      
      \mathbf{elif}\;z \leq 1.42 \cdot 10^{+135}:\\
      \;\;\;\;\mathsf{fma}\left(y - z, \frac{t}{a}, x\right)\\
      
      \mathbf{else}:\\
      \;\;\;\;t\_1\\
      
      
      \end{array}
      \end{array}
      
      Derivation
      1. Split input into 2 regimes
      2. if z < -1.5499999999999999e40 or 1.41999999999999998e135 < z

        1. Initial program 71.1%

          \[x + \frac{\left(y - z\right) \cdot t}{a - z} \]
        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. distribute-rgt-neg-inN/A

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

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

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

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

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

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

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

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

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

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

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

            \[\leadsto \mathsf{fma}\left(t, \color{blue}{1 - \frac{y}{z}}, x\right) \]
          16. lower-/.f6492.2

            \[\leadsto \mathsf{fma}\left(t, 1 - \color{blue}{\frac{y}{z}}, x\right) \]
        5. Applied rewrites92.2%

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

        if -1.5499999999999999e40 < z < 1.41999999999999998e135

        1. Initial program 95.9%

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

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

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

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

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

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

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

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

            \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y - z}{a - z}, t, x\right)} \]
          9. lower-/.f6496.5

            \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y - z}{a - z}}, t, x\right) \]
        4. Applied rewrites96.5%

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

          \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y}{a - z}}, t, x\right) \]
        6. Step-by-step derivation
          1. lower-/.f64N/A

            \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y}{a - z}}, t, x\right) \]
          2. lower--.f6482.6

            \[\leadsto \mathsf{fma}\left(\frac{y}{\color{blue}{a - z}}, t, x\right) \]
        7. Applied rewrites82.6%

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

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

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

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

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

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

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

            \[\leadsto \mathsf{fma}\left(y - z, \color{blue}{\frac{t}{a}}, x\right) \]
        10. Applied rewrites83.6%

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

      Alternative 8: 80.3% accurate, 0.8× speedup?

      \[\begin{array}{l} \\ \begin{array}{l} t_1 := \mathsf{fma}\left(t, 1 - \frac{y}{z}, x\right)\\ \mathbf{if}\;z \leq -1.55 \cdot 10^{+40}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq 1.42 \cdot 10^{+135}:\\ \;\;\;\;\mathsf{fma}\left(t, \frac{y - z}{a}, x\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
      (FPCore (x y z t a)
       :precision binary64
       (let* ((t_1 (fma t (- 1.0 (/ y z)) x)))
         (if (<= z -1.55e+40)
           t_1
           (if (<= z 1.42e+135) (fma t (/ (- y z) a) x) t_1))))
      double code(double x, double y, double z, double t, double a) {
      	double t_1 = fma(t, (1.0 - (y / z)), x);
      	double tmp;
      	if (z <= -1.55e+40) {
      		tmp = t_1;
      	} else if (z <= 1.42e+135) {
      		tmp = fma(t, ((y - z) / a), x);
      	} else {
      		tmp = t_1;
      	}
      	return tmp;
      }
      
      function code(x, y, z, t, a)
      	t_1 = fma(t, Float64(1.0 - Float64(y / z)), x)
      	tmp = 0.0
      	if (z <= -1.55e+40)
      		tmp = t_1;
      	elseif (z <= 1.42e+135)
      		tmp = fma(t, Float64(Float64(y - z) / a), x);
      	else
      		tmp = t_1;
      	end
      	return tmp
      end
      
      code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(t * N[(1.0 - N[(y / z), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision]}, If[LessEqual[z, -1.55e+40], t$95$1, If[LessEqual[z, 1.42e+135], N[(t * N[(N[(y - z), $MachinePrecision] / a), $MachinePrecision] + x), $MachinePrecision], t$95$1]]]
      
      \begin{array}{l}
      
      \\
      \begin{array}{l}
      t_1 := \mathsf{fma}\left(t, 1 - \frac{y}{z}, x\right)\\
      \mathbf{if}\;z \leq -1.55 \cdot 10^{+40}:\\
      \;\;\;\;t\_1\\
      
      \mathbf{elif}\;z \leq 1.42 \cdot 10^{+135}:\\
      \;\;\;\;\mathsf{fma}\left(t, \frac{y - z}{a}, x\right)\\
      
      \mathbf{else}:\\
      \;\;\;\;t\_1\\
      
      
      \end{array}
      \end{array}
      
      Derivation
      1. Split input into 2 regimes
      2. if z < -1.5499999999999999e40 or 1.41999999999999998e135 < z

        1. Initial program 71.1%

          \[x + \frac{\left(y - z\right) \cdot t}{a - z} \]
        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. distribute-rgt-neg-inN/A

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

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

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

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

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

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

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

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

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

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

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

            \[\leadsto \mathsf{fma}\left(t, \color{blue}{1 - \frac{y}{z}}, x\right) \]
          16. lower-/.f6492.2

            \[\leadsto \mathsf{fma}\left(t, 1 - \color{blue}{\frac{y}{z}}, x\right) \]
        5. Applied rewrites92.2%

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

        if -1.5499999999999999e40 < z < 1.41999999999999998e135

        1. Initial program 95.9%

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

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

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

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

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

            \[\leadsto \mathsf{fma}\left(t, \color{blue}{\frac{y - z}{a}}, x\right) \]
          5. lower--.f6481.4

            \[\leadsto \mathsf{fma}\left(t, \frac{\color{blue}{y - z}}{a}, x\right) \]
        5. Applied rewrites81.4%

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

      Alternative 9: 81.3% accurate, 0.8× speedup?

      \[\begin{array}{l} \\ \begin{array}{l} t_1 := \mathsf{fma}\left(t, 1 - \frac{y}{z}, x\right)\\ \mathbf{if}\;z \leq -4.2 \cdot 10^{-55}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq 1.5 \cdot 10^{+38}:\\ \;\;\;\;\mathsf{fma}\left(y, \frac{t}{a}, x\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
      (FPCore (x y z t a)
       :precision binary64
       (let* ((t_1 (fma t (- 1.0 (/ y z)) x)))
         (if (<= z -4.2e-55) t_1 (if (<= z 1.5e+38) (fma y (/ t a) x) t_1))))
      double code(double x, double y, double z, double t, double a) {
      	double t_1 = fma(t, (1.0 - (y / z)), x);
      	double tmp;
      	if (z <= -4.2e-55) {
      		tmp = t_1;
      	} else if (z <= 1.5e+38) {
      		tmp = fma(y, (t / a), x);
      	} else {
      		tmp = t_1;
      	}
      	return tmp;
      }
      
      function code(x, y, z, t, a)
      	t_1 = fma(t, Float64(1.0 - Float64(y / z)), x)
      	tmp = 0.0
      	if (z <= -4.2e-55)
      		tmp = t_1;
      	elseif (z <= 1.5e+38)
      		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[(t * N[(1.0 - N[(y / z), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision]}, If[LessEqual[z, -4.2e-55], t$95$1, If[LessEqual[z, 1.5e+38], N[(y * N[(t / a), $MachinePrecision] + x), $MachinePrecision], t$95$1]]]
      
      \begin{array}{l}
      
      \\
      \begin{array}{l}
      t_1 := \mathsf{fma}\left(t, 1 - \frac{y}{z}, x\right)\\
      \mathbf{if}\;z \leq -4.2 \cdot 10^{-55}:\\
      \;\;\;\;t\_1\\
      
      \mathbf{elif}\;z \leq 1.5 \cdot 10^{+38}:\\
      \;\;\;\;\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 < -4.2000000000000003e-55 or 1.5000000000000001e38 < z

        1. Initial program 77.2%

          \[x + \frac{\left(y - z\right) \cdot t}{a - z} \]
        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. distribute-rgt-neg-inN/A

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

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

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

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

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

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

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

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

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

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

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

            \[\leadsto \mathsf{fma}\left(t, \color{blue}{1 - \frac{y}{z}}, x\right) \]
          16. lower-/.f6484.2

            \[\leadsto \mathsf{fma}\left(t, 1 - \color{blue}{\frac{y}{z}}, x\right) \]
        5. Applied rewrites84.2%

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

        if -4.2000000000000003e-55 < z < 1.5000000000000001e38

        1. Initial program 97.0%

          \[x + \frac{\left(y - z\right) \cdot t}{a - z} \]
        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. *-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-/.f6483.5

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

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

      Alternative 10: 75.7% accurate, 0.9× speedup?

      \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -1.15 \cdot 10^{+115}:\\ \;\;\;\;t + x\\ \mathbf{elif}\;z \leq 4.8 \cdot 10^{+59}:\\ \;\;\;\;\mathsf{fma}\left(y, \frac{t}{a}, x\right)\\ \mathbf{else}:\\ \;\;\;\;t + x\\ \end{array} \end{array} \]
      (FPCore (x y z t a)
       :precision binary64
       (if (<= z -1.15e+115) (+ t x) (if (<= z 4.8e+59) (fma y (/ t a) x) (+ t x))))
      double code(double x, double y, double z, double t, double a) {
      	double tmp;
      	if (z <= -1.15e+115) {
      		tmp = t + x;
      	} else if (z <= 4.8e+59) {
      		tmp = fma(y, (t / a), x);
      	} else {
      		tmp = t + x;
      	}
      	return tmp;
      }
      
      function code(x, y, z, t, a)
      	tmp = 0.0
      	if (z <= -1.15e+115)
      		tmp = Float64(t + x);
      	elseif (z <= 4.8e+59)
      		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, -1.15e+115], N[(t + x), $MachinePrecision], If[LessEqual[z, 4.8e+59], N[(y * N[(t / a), $MachinePrecision] + x), $MachinePrecision], N[(t + x), $MachinePrecision]]]
      
      \begin{array}{l}
      
      \\
      \begin{array}{l}
      \mathbf{if}\;z \leq -1.15 \cdot 10^{+115}:\\
      \;\;\;\;t + x\\
      
      \mathbf{elif}\;z \leq 4.8 \cdot 10^{+59}:\\
      \;\;\;\;\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 < -1.15000000000000002e115 or 4.8000000000000004e59 < z

        1. Initial program 71.0%

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

          \[\leadsto \color{blue}{t + x} \]
        4. Step-by-step derivation
          1. lower-+.f6480.1

            \[\leadsto \color{blue}{t + x} \]
        5. Applied rewrites80.1%

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

        if -1.15000000000000002e115 < z < 4.8000000000000004e59

        1. Initial program 96.4%

          \[x + \frac{\left(y - z\right) \cdot t}{a - z} \]
        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. *-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-/.f6479.3

            \[\leadsto \mathsf{fma}\left(y, \color{blue}{\frac{t}{a}}, x\right) \]
        5. Applied rewrites79.3%

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

      Alternative 11: 96.0% accurate, 1.1× speedup?

      \[\begin{array}{l} \\ \mathsf{fma}\left(\frac{t}{a - z}, y - z, x\right) \end{array} \]
      (FPCore (x y z t a) :precision binary64 (fma (/ t (- a z)) (- y z) x))
      double code(double x, double y, double z, double t, double a) {
      	return fma((t / (a - z)), (y - z), x);
      }
      
      function code(x, y, z, t, a)
      	return fma(Float64(t / Float64(a - z)), Float64(y - z), x)
      end
      
      code[x_, y_, z_, t_, a_] := N[(N[(t / N[(a - z), $MachinePrecision]), $MachinePrecision] * N[(y - z), $MachinePrecision] + x), $MachinePrecision]
      
      \begin{array}{l}
      
      \\
      \mathsf{fma}\left(\frac{t}{a - z}, y - z, x\right)
      \end{array}
      
      Derivation
      1. Initial program 87.4%

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

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

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

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

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

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

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

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

          \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{t}{a - z}}, y - z, x\right) \]
      4. Applied rewrites96.9%

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

      Alternative 12: 60.5% 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 87.4%

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

        \[\leadsto \color{blue}{t + x} \]
      4. Step-by-step derivation
        1. lower-+.f6459.7

          \[\leadsto \color{blue}{t + x} \]
      5. Applied rewrites59.7%

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

      Developer Target 1: 99.2% 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 2024233 
      (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))))