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

Percentage Accurate: 77.3% → 92.3%
Time: 10.6s
Alternatives: 9
Speedup: 0.9×

Specification

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

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

Sampling outcomes in binary64 precision:

Local Percentage Accuracy vs ?

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

Accuracy vs Speed?

Herbie found 9 alternatives:

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

Initial Program: 77.3% accurate, 1.0× speedup?

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

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

Alternative 1: 92.3% accurate, 0.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \mathsf{fma}\left(y, 1 + \frac{z - t}{t - a}, x\right)\\ t_2 := \left(x + y\right) + \frac{y \cdot \left(z - t\right)}{t - a}\\ \mathbf{if}\;t\_2 \leq -5 \cdot 10^{-193}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;t\_2 \leq 0:\\ \;\;\;\;\mathsf{fma}\left(\frac{y}{t}, z - a, x\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (let* ((t_1 (fma y (+ 1.0 (/ (- z t) (- t a))) x))
        (t_2 (+ (+ x y) (/ (* y (- z t)) (- t a)))))
   (if (<= t_2 -5e-193) t_1 (if (<= t_2 0.0) (fma (/ y t) (- z a) x) t_1))))
double code(double x, double y, double z, double t, double a) {
	double t_1 = fma(y, (1.0 + ((z - t) / (t - a))), x);
	double t_2 = (x + y) + ((y * (z - t)) / (t - a));
	double tmp;
	if (t_2 <= -5e-193) {
		tmp = t_1;
	} else if (t_2 <= 0.0) {
		tmp = fma((y / t), (z - a), x);
	} else {
		tmp = t_1;
	}
	return tmp;
}
function code(x, y, z, t, a)
	t_1 = fma(y, Float64(1.0 + Float64(Float64(z - t) / Float64(t - a))), x)
	t_2 = Float64(Float64(x + y) + Float64(Float64(y * Float64(z - t)) / Float64(t - a)))
	tmp = 0.0
	if (t_2 <= -5e-193)
		tmp = t_1;
	elseif (t_2 <= 0.0)
		tmp = fma(Float64(y / t), Float64(z - a), x);
	else
		tmp = t_1;
	end
	return tmp
end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(y * N[(1.0 + N[(N[(z - t), $MachinePrecision] / N[(t - a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision]}, Block[{t$95$2 = N[(N[(x + y), $MachinePrecision] + N[(N[(y * N[(z - t), $MachinePrecision]), $MachinePrecision] / N[(t - a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$2, -5e-193], t$95$1, If[LessEqual[t$95$2, 0.0], N[(N[(y / t), $MachinePrecision] * N[(z - a), $MachinePrecision] + x), $MachinePrecision], t$95$1]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \mathsf{fma}\left(y, 1 + \frac{z - t}{t - a}, x\right)\\
t_2 := \left(x + y\right) + \frac{y \cdot \left(z - t\right)}{t - a}\\
\mathbf{if}\;t\_2 \leq -5 \cdot 10^{-193}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;t\_2 \leq 0:\\
\;\;\;\;\mathsf{fma}\left(\frac{y}{t}, z - a, x\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (-.f64 (+.f64 x y) (/.f64 (*.f64 (-.f64 z t) y) (-.f64 a t))) < -5.0000000000000005e-193 or 0.0 < (-.f64 (+.f64 x y) (/.f64 (*.f64 (-.f64 z t) y) (-.f64 a t)))

    1. Initial program 85.4%

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

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

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

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

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

        \[\leadsto \left(y \cdot 1 - \color{blue}{y \cdot \frac{z - t}{a - t}}\right) + x \]
      5. distribute-lft-out--N/A

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

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

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

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

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

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

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

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

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

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

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

    if -5.0000000000000005e-193 < (-.f64 (+.f64 x y) (/.f64 (*.f64 (-.f64 z t) y) (-.f64 a t))) < 0.0

    1. Initial program 8.2%

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

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

        \[\leadsto \color{blue}{\left(x + -1 \cdot \frac{a \cdot y}{t}\right) + \left(\mathsf{neg}\left(-1\right)\right) \cdot \frac{y \cdot z}{t}} \]
      2. metadata-evalN/A

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

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

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

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

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

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

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

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

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

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

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

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

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

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

      \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y}{t}, z - a, x\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification94.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\left(x + y\right) + \frac{y \cdot \left(z - t\right)}{t - a} \leq -5 \cdot 10^{-193}:\\ \;\;\;\;\mathsf{fma}\left(y, 1 + \frac{z - t}{t - a}, x\right)\\ \mathbf{elif}\;\left(x + y\right) + \frac{y \cdot \left(z - t\right)}{t - a} \leq 0:\\ \;\;\;\;\mathsf{fma}\left(\frac{y}{t}, z - a, x\right)\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(y, 1 + \frac{z - t}{t - a}, x\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 2: 88.2% accurate, 0.2× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \mathsf{fma}\left(y, \frac{z}{t - a}, x\right)\\ t_2 := \left(x + y\right) + \frac{y \cdot \left(z - t\right)}{t - a}\\ t_3 := \left(x + y\right) + \frac{y \cdot z}{t - a}\\ \mathbf{if}\;t\_2 \leq -1.5 \cdot 10^{+305}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;t\_2 \leq -5 \cdot 10^{-193}:\\ \;\;\;\;t\_3\\ \mathbf{elif}\;t\_2 \leq 10^{-211}:\\ \;\;\;\;\mathsf{fma}\left(\frac{y}{t}, z - a, x\right)\\ \mathbf{elif}\;t\_2 \leq 4 \cdot 10^{+197}:\\ \;\;\;\;t\_3\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (let* ((t_1 (fma y (/ z (- t a)) x))
        (t_2 (+ (+ x y) (/ (* y (- z t)) (- t a))))
        (t_3 (+ (+ x y) (/ (* y z) (- t a)))))
   (if (<= t_2 -1.5e+305)
     t_1
     (if (<= t_2 -5e-193)
       t_3
       (if (<= t_2 1e-211)
         (fma (/ y t) (- z a) x)
         (if (<= t_2 4e+197) t_3 t_1))))))
double code(double x, double y, double z, double t, double a) {
	double t_1 = fma(y, (z / (t - a)), x);
	double t_2 = (x + y) + ((y * (z - t)) / (t - a));
	double t_3 = (x + y) + ((y * z) / (t - a));
	double tmp;
	if (t_2 <= -1.5e+305) {
		tmp = t_1;
	} else if (t_2 <= -5e-193) {
		tmp = t_3;
	} else if (t_2 <= 1e-211) {
		tmp = fma((y / t), (z - a), x);
	} else if (t_2 <= 4e+197) {
		tmp = t_3;
	} else {
		tmp = t_1;
	}
	return tmp;
}
function code(x, y, z, t, a)
	t_1 = fma(y, Float64(z / Float64(t - a)), x)
	t_2 = Float64(Float64(x + y) + Float64(Float64(y * Float64(z - t)) / Float64(t - a)))
	t_3 = Float64(Float64(x + y) + Float64(Float64(y * z) / Float64(t - a)))
	tmp = 0.0
	if (t_2 <= -1.5e+305)
		tmp = t_1;
	elseif (t_2 <= -5e-193)
		tmp = t_3;
	elseif (t_2 <= 1e-211)
		tmp = fma(Float64(y / t), Float64(z - a), x);
	elseif (t_2 <= 4e+197)
		tmp = t_3;
	else
		tmp = t_1;
	end
	return tmp
end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(y * N[(z / N[(t - a), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision]}, Block[{t$95$2 = N[(N[(x + y), $MachinePrecision] + N[(N[(y * N[(z - t), $MachinePrecision]), $MachinePrecision] / N[(t - a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$3 = N[(N[(x + y), $MachinePrecision] + N[(N[(y * z), $MachinePrecision] / N[(t - a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$2, -1.5e+305], t$95$1, If[LessEqual[t$95$2, -5e-193], t$95$3, If[LessEqual[t$95$2, 1e-211], N[(N[(y / t), $MachinePrecision] * N[(z - a), $MachinePrecision] + x), $MachinePrecision], If[LessEqual[t$95$2, 4e+197], t$95$3, t$95$1]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \mathsf{fma}\left(y, \frac{z}{t - a}, x\right)\\
t_2 := \left(x + y\right) + \frac{y \cdot \left(z - t\right)}{t - a}\\
t_3 := \left(x + y\right) + \frac{y \cdot z}{t - a}\\
\mathbf{if}\;t\_2 \leq -1.5 \cdot 10^{+305}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;t\_2 \leq -5 \cdot 10^{-193}:\\
\;\;\;\;t\_3\\

\mathbf{elif}\;t\_2 \leq 10^{-211}:\\
\;\;\;\;\mathsf{fma}\left(\frac{y}{t}, z - a, x\right)\\

\mathbf{elif}\;t\_2 \leq 4 \cdot 10^{+197}:\\
\;\;\;\;t\_3\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if (-.f64 (+.f64 x y) (/.f64 (*.f64 (-.f64 z t) y) (-.f64 a t))) < -1.49999999999999991e305 or 3.9999999999999998e197 < (-.f64 (+.f64 x y) (/.f64 (*.f64 (-.f64 z t) y) (-.f64 a t)))

    1. Initial program 57.6%

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

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

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

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

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

        \[\leadsto \left(y \cdot 1 - \color{blue}{y \cdot \frac{z - t}{a - t}}\right) + x \]
      5. distribute-lft-out--N/A

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

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

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

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

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

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

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

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

        \[\leadsto \mathsf{fma}\left(y, 1 - \frac{\color{blue}{z - t}}{a - t}, x\right) \]
      14. lower--.f6491.3

        \[\leadsto \mathsf{fma}\left(y, 1 - \frac{z - t}{\color{blue}{a - t}}, x\right) \]
    5. Applied rewrites91.3%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, 1 - \frac{z - t}{a - t}, x\right)} \]
    6. Taylor expanded in z around inf

      \[\leadsto \mathsf{fma}\left(y, -1 \cdot \color{blue}{\frac{z}{a - t}}, x\right) \]
    7. Step-by-step derivation
      1. Applied rewrites87.8%

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

      if -1.49999999999999991e305 < (-.f64 (+.f64 x y) (/.f64 (*.f64 (-.f64 z t) y) (-.f64 a t))) < -5.0000000000000005e-193 or 1.00000000000000009e-211 < (-.f64 (+.f64 x y) (/.f64 (*.f64 (-.f64 z t) y) (-.f64 a t))) < 3.9999999999999998e197

      1. Initial program 98.3%

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

        \[\leadsto \left(x + y\right) - \frac{\color{blue}{y \cdot z}}{a - t} \]
      4. Step-by-step derivation
        1. lower-*.f6496.6

          \[\leadsto \left(x + y\right) - \frac{\color{blue}{y \cdot z}}{a - t} \]
      5. Applied rewrites96.6%

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

      if -5.0000000000000005e-193 < (-.f64 (+.f64 x y) (/.f64 (*.f64 (-.f64 z t) y) (-.f64 a t))) < 1.00000000000000009e-211

      1. Initial program 17.2%

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

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

          \[\leadsto \color{blue}{\left(x + -1 \cdot \frac{a \cdot y}{t}\right) + \left(\mathsf{neg}\left(-1\right)\right) \cdot \frac{y \cdot z}{t}} \]
        2. metadata-evalN/A

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

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

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

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

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

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

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

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

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

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

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

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

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

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

        \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y}{t}, z - a, x\right)} \]
    8. Recombined 3 regimes into one program.
    9. Final simplification94.4%

      \[\leadsto \begin{array}{l} \mathbf{if}\;\left(x + y\right) + \frac{y \cdot \left(z - t\right)}{t - a} \leq -1.5 \cdot 10^{+305}:\\ \;\;\;\;\mathsf{fma}\left(y, \frac{z}{t - a}, x\right)\\ \mathbf{elif}\;\left(x + y\right) + \frac{y \cdot \left(z - t\right)}{t - a} \leq -5 \cdot 10^{-193}:\\ \;\;\;\;\left(x + y\right) + \frac{y \cdot z}{t - a}\\ \mathbf{elif}\;\left(x + y\right) + \frac{y \cdot \left(z - t\right)}{t - a} \leq 10^{-211}:\\ \;\;\;\;\mathsf{fma}\left(\frac{y}{t}, z - a, x\right)\\ \mathbf{elif}\;\left(x + y\right) + \frac{y \cdot \left(z - t\right)}{t - a} \leq 4 \cdot 10^{+197}:\\ \;\;\;\;\left(x + y\right) + \frac{y \cdot z}{t - a}\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(y, \frac{z}{t - a}, x\right)\\ \end{array} \]
    10. Add Preprocessing

    Alternative 3: 87.4% accurate, 0.9× speedup?

    \[\begin{array}{l} \\ \begin{array}{l} t_1 := \mathsf{fma}\left(y, 1 - \frac{z}{a}, x\right)\\ \mathbf{if}\;a \leq -900000:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;a \leq 5.3 \cdot 10^{-31}:\\ \;\;\;\;\mathsf{fma}\left(y, \frac{z}{t - a}, x\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
    (FPCore (x y z t a)
     :precision binary64
     (let* ((t_1 (fma y (- 1.0 (/ z a)) x)))
       (if (<= a -900000.0) t_1 (if (<= a 5.3e-31) (fma y (/ z (- t a)) x) t_1))))
    double code(double x, double y, double z, double t, double a) {
    	double t_1 = fma(y, (1.0 - (z / a)), x);
    	double tmp;
    	if (a <= -900000.0) {
    		tmp = t_1;
    	} else if (a <= 5.3e-31) {
    		tmp = fma(y, (z / (t - a)), x);
    	} else {
    		tmp = t_1;
    	}
    	return tmp;
    }
    
    function code(x, y, z, t, a)
    	t_1 = fma(y, Float64(1.0 - Float64(z / a)), x)
    	tmp = 0.0
    	if (a <= -900000.0)
    		tmp = t_1;
    	elseif (a <= 5.3e-31)
    		tmp = fma(y, Float64(z / Float64(t - a)), x);
    	else
    		tmp = t_1;
    	end
    	return tmp
    end
    
    code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(y * N[(1.0 - N[(z / a), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision]}, If[LessEqual[a, -900000.0], t$95$1, If[LessEqual[a, 5.3e-31], N[(y * N[(z / N[(t - a), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision], t$95$1]]]
    
    \begin{array}{l}
    
    \\
    \begin{array}{l}
    t_1 := \mathsf{fma}\left(y, 1 - \frac{z}{a}, x\right)\\
    \mathbf{if}\;a \leq -900000:\\
    \;\;\;\;t\_1\\
    
    \mathbf{elif}\;a \leq 5.3 \cdot 10^{-31}:\\
    \;\;\;\;\mathsf{fma}\left(y, \frac{z}{t - a}, x\right)\\
    
    \mathbf{else}:\\
    \;\;\;\;t\_1\\
    
    
    \end{array}
    \end{array}
    
    Derivation
    1. Split input into 2 regimes
    2. if a < -9e5 or 5.3000000000000001e-31 < a

      1. Initial program 80.5%

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

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

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

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

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

          \[\leadsto \left(y \cdot 1 - \color{blue}{y \cdot \frac{z}{a}}\right) + x \]
        5. distribute-lft-out--N/A

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

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

          \[\leadsto \mathsf{fma}\left(y, \color{blue}{1 - \frac{z}{a}}, x\right) \]
        8. lower-/.f6487.8

          \[\leadsto \mathsf{fma}\left(y, 1 - \color{blue}{\frac{z}{a}}, x\right) \]
      5. Applied rewrites87.8%

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

      if -9e5 < a < 5.3000000000000001e-31

      1. Initial program 75.4%

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

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

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

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

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

          \[\leadsto \left(y \cdot 1 - \color{blue}{y \cdot \frac{z - t}{a - t}}\right) + x \]
        5. distribute-lft-out--N/A

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

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

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

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

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

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

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

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

          \[\leadsto \mathsf{fma}\left(y, 1 - \frac{\color{blue}{z - t}}{a - t}, x\right) \]
        14. lower--.f6486.3

          \[\leadsto \mathsf{fma}\left(y, 1 - \frac{z - t}{\color{blue}{a - t}}, x\right) \]
      5. Applied rewrites86.3%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, 1 - \frac{z - t}{a - t}, x\right)} \]
      6. Taylor expanded in z around inf

        \[\leadsto \mathsf{fma}\left(y, -1 \cdot \color{blue}{\frac{z}{a - t}}, x\right) \]
      7. Step-by-step derivation
        1. Applied rewrites90.4%

          \[\leadsto \mathsf{fma}\left(y, -\frac{z}{a - t}, x\right) \]
      8. Recombined 2 regimes into one program.
      9. Final simplification89.0%

        \[\leadsto \begin{array}{l} \mathbf{if}\;a \leq -900000:\\ \;\;\;\;\mathsf{fma}\left(y, 1 - \frac{z}{a}, x\right)\\ \mathbf{elif}\;a \leq 5.3 \cdot 10^{-31}:\\ \;\;\;\;\mathsf{fma}\left(y, \frac{z}{t - a}, x\right)\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(y, 1 - \frac{z}{a}, x\right)\\ \end{array} \]
      10. Add Preprocessing

      Alternative 4: 80.7% accurate, 0.9× speedup?

      \[\begin{array}{l} \\ \begin{array}{l} t_1 := \mathsf{fma}\left(\frac{y}{t}, z - a, x\right)\\ \mathbf{if}\;t \leq -2.3 \cdot 10^{-64}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;t \leq 1.8 \cdot 10^{-62}:\\ \;\;\;\;\mathsf{fma}\left(y, 1 - \frac{z}{a}, x\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
      (FPCore (x y z t a)
       :precision binary64
       (let* ((t_1 (fma (/ y t) (- z a) x)))
         (if (<= t -2.3e-64) t_1 (if (<= t 1.8e-62) (fma y (- 1.0 (/ z a)) x) t_1))))
      double code(double x, double y, double z, double t, double a) {
      	double t_1 = fma((y / t), (z - a), x);
      	double tmp;
      	if (t <= -2.3e-64) {
      		tmp = t_1;
      	} else if (t <= 1.8e-62) {
      		tmp = fma(y, (1.0 - (z / a)), x);
      	} else {
      		tmp = t_1;
      	}
      	return tmp;
      }
      
      function code(x, y, z, t, a)
      	t_1 = fma(Float64(y / t), Float64(z - a), x)
      	tmp = 0.0
      	if (t <= -2.3e-64)
      		tmp = t_1;
      	elseif (t <= 1.8e-62)
      		tmp = fma(y, Float64(1.0 - Float64(z / a)), x);
      	else
      		tmp = t_1;
      	end
      	return tmp
      end
      
      code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(N[(y / t), $MachinePrecision] * N[(z - a), $MachinePrecision] + x), $MachinePrecision]}, If[LessEqual[t, -2.3e-64], t$95$1, If[LessEqual[t, 1.8e-62], N[(y * N[(1.0 - N[(z / a), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision], t$95$1]]]
      
      \begin{array}{l}
      
      \\
      \begin{array}{l}
      t_1 := \mathsf{fma}\left(\frac{y}{t}, z - a, x\right)\\
      \mathbf{if}\;t \leq -2.3 \cdot 10^{-64}:\\
      \;\;\;\;t\_1\\
      
      \mathbf{elif}\;t \leq 1.8 \cdot 10^{-62}:\\
      \;\;\;\;\mathsf{fma}\left(y, 1 - \frac{z}{a}, x\right)\\
      
      \mathbf{else}:\\
      \;\;\;\;t\_1\\
      
      
      \end{array}
      \end{array}
      
      Derivation
      1. Split input into 2 regimes
      2. if t < -2.3000000000000001e-64 or 1.8e-62 < t

        1. Initial program 69.3%

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

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

            \[\leadsto \color{blue}{\left(x + -1 \cdot \frac{a \cdot y}{t}\right) + \left(\mathsf{neg}\left(-1\right)\right) \cdot \frac{y \cdot z}{t}} \]
          2. metadata-evalN/A

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

        if -2.3000000000000001e-64 < t < 1.8e-62

        1. Initial program 91.5%

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

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

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

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

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

            \[\leadsto \left(y \cdot 1 - \color{blue}{y \cdot \frac{z}{a}}\right) + x \]
          5. distribute-lft-out--N/A

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

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

            \[\leadsto \mathsf{fma}\left(y, \color{blue}{1 - \frac{z}{a}}, x\right) \]
          8. lower-/.f6489.7

            \[\leadsto \mathsf{fma}\left(y, 1 - \color{blue}{\frac{z}{a}}, x\right) \]
        5. Applied rewrites89.7%

          \[\leadsto \color{blue}{\mathsf{fma}\left(y, 1 - \frac{z}{a}, x\right)} \]
      3. Recombined 2 regimes into one program.
      4. Add Preprocessing

      Alternative 5: 78.6% accurate, 0.9× speedup?

      \[\begin{array}{l} \\ \begin{array}{l} t_1 := \mathsf{fma}\left(y, \frac{z}{t}, x\right)\\ \mathbf{if}\;t \leq -2.2 \cdot 10^{-64}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;t \leq 3.5 \cdot 10^{-79}:\\ \;\;\;\;\mathsf{fma}\left(y, 1 - \frac{z}{a}, x\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
      (FPCore (x y z t a)
       :precision binary64
       (let* ((t_1 (fma y (/ z t) x)))
         (if (<= t -2.2e-64) t_1 (if (<= t 3.5e-79) (fma y (- 1.0 (/ z a)) x) t_1))))
      double code(double x, double y, double z, double t, double a) {
      	double t_1 = fma(y, (z / t), x);
      	double tmp;
      	if (t <= -2.2e-64) {
      		tmp = t_1;
      	} else if (t <= 3.5e-79) {
      		tmp = fma(y, (1.0 - (z / a)), x);
      	} else {
      		tmp = t_1;
      	}
      	return tmp;
      }
      
      function code(x, y, z, t, a)
      	t_1 = fma(y, Float64(z / t), x)
      	tmp = 0.0
      	if (t <= -2.2e-64)
      		tmp = t_1;
      	elseif (t <= 3.5e-79)
      		tmp = fma(y, Float64(1.0 - Float64(z / a)), x);
      	else
      		tmp = t_1;
      	end
      	return tmp
      end
      
      code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(y * N[(z / t), $MachinePrecision] + x), $MachinePrecision]}, If[LessEqual[t, -2.2e-64], t$95$1, If[LessEqual[t, 3.5e-79], N[(y * N[(1.0 - N[(z / a), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision], t$95$1]]]
      
      \begin{array}{l}
      
      \\
      \begin{array}{l}
      t_1 := \mathsf{fma}\left(y, \frac{z}{t}, x\right)\\
      \mathbf{if}\;t \leq -2.2 \cdot 10^{-64}:\\
      \;\;\;\;t\_1\\
      
      \mathbf{elif}\;t \leq 3.5 \cdot 10^{-79}:\\
      \;\;\;\;\mathsf{fma}\left(y, 1 - \frac{z}{a}, x\right)\\
      
      \mathbf{else}:\\
      \;\;\;\;t\_1\\
      
      
      \end{array}
      \end{array}
      
      Derivation
      1. Split input into 2 regimes
      2. if t < -2.2e-64 or 3.5000000000000003e-79 < t

        1. Initial program 69.5%

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

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

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

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

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

            \[\leadsto \left(y \cdot 1 - \color{blue}{y \cdot \frac{z - t}{a - t}}\right) + x \]
          5. distribute-lft-out--N/A

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

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

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

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

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

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

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

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

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

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

          \[\leadsto \color{blue}{\mathsf{fma}\left(y, 1 - \frac{z - t}{a - t}, x\right)} \]
        6. Taylor expanded in a around 0

          \[\leadsto \mathsf{fma}\left(y, \frac{z}{\color{blue}{t}}, x\right) \]
        7. Step-by-step derivation
          1. Applied rewrites82.9%

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

          if -2.2e-64 < t < 3.5000000000000003e-79

          1. Initial program 91.4%

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

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

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

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

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

              \[\leadsto \left(y \cdot 1 - \color{blue}{y \cdot \frac{z}{a}}\right) + x \]
            5. distribute-lft-out--N/A

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

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

              \[\leadsto \mathsf{fma}\left(y, \color{blue}{1 - \frac{z}{a}}, x\right) \]
            8. lower-/.f6489.6

              \[\leadsto \mathsf{fma}\left(y, 1 - \color{blue}{\frac{z}{a}}, x\right) \]
          5. Applied rewrites89.6%

            \[\leadsto \color{blue}{\mathsf{fma}\left(y, 1 - \frac{z}{a}, x\right)} \]
        8. Recombined 2 regimes into one program.
        9. Add Preprocessing

        Alternative 6: 77.0% accurate, 1.0× speedup?

        \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;a \leq -1.2 \cdot 10^{+70}:\\ \;\;\;\;x + y\\ \mathbf{elif}\;a \leq 1.45 \cdot 10^{-49}:\\ \;\;\;\;\mathsf{fma}\left(y, \frac{z}{t}, x\right)\\ \mathbf{else}:\\ \;\;\;\;x + y\\ \end{array} \end{array} \]
        (FPCore (x y z t a)
         :precision binary64
         (if (<= a -1.2e+70) (+ x y) (if (<= a 1.45e-49) (fma y (/ z t) x) (+ x y))))
        double code(double x, double y, double z, double t, double a) {
        	double tmp;
        	if (a <= -1.2e+70) {
        		tmp = x + y;
        	} else if (a <= 1.45e-49) {
        		tmp = fma(y, (z / t), x);
        	} else {
        		tmp = x + y;
        	}
        	return tmp;
        }
        
        function code(x, y, z, t, a)
        	tmp = 0.0
        	if (a <= -1.2e+70)
        		tmp = Float64(x + y);
        	elseif (a <= 1.45e-49)
        		tmp = fma(y, Float64(z / t), x);
        	else
        		tmp = Float64(x + y);
        	end
        	return tmp
        end
        
        code[x_, y_, z_, t_, a_] := If[LessEqual[a, -1.2e+70], N[(x + y), $MachinePrecision], If[LessEqual[a, 1.45e-49], N[(y * N[(z / t), $MachinePrecision] + x), $MachinePrecision], N[(x + y), $MachinePrecision]]]
        
        \begin{array}{l}
        
        \\
        \begin{array}{l}
        \mathbf{if}\;a \leq -1.2 \cdot 10^{+70}:\\
        \;\;\;\;x + y\\
        
        \mathbf{elif}\;a \leq 1.45 \cdot 10^{-49}:\\
        \;\;\;\;\mathsf{fma}\left(y, \frac{z}{t}, x\right)\\
        
        \mathbf{else}:\\
        \;\;\;\;x + y\\
        
        
        \end{array}
        \end{array}
        
        Derivation
        1. Split input into 2 regimes
        2. if a < -1.19999999999999993e70 or 1.45e-49 < a

          1. Initial program 81.8%

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

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

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

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

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

          if -1.19999999999999993e70 < a < 1.45e-49

          1. Initial program 74.8%

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

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

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

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

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

              \[\leadsto \left(y \cdot 1 - \color{blue}{y \cdot \frac{z - t}{a - t}}\right) + x \]
            5. distribute-lft-out--N/A

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

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

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

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

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

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

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

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

              \[\leadsto \mathsf{fma}\left(y, 1 - \frac{\color{blue}{z - t}}{a - t}, x\right) \]
            14. lower--.f6485.8

              \[\leadsto \mathsf{fma}\left(y, 1 - \frac{z - t}{\color{blue}{a - t}}, x\right) \]
          5. Applied rewrites85.8%

            \[\leadsto \color{blue}{\mathsf{fma}\left(y, 1 - \frac{z - t}{a - t}, x\right)} \]
          6. Taylor expanded in a around 0

            \[\leadsto \mathsf{fma}\left(y, \frac{z}{\color{blue}{t}}, x\right) \]
          7. Step-by-step derivation
            1. Applied rewrites76.4%

              \[\leadsto \mathsf{fma}\left(y, \frac{z}{\color{blue}{t}}, x\right) \]
          8. Recombined 2 regimes into one program.
          9. Final simplification79.6%

            \[\leadsto \begin{array}{l} \mathbf{if}\;a \leq -1.2 \cdot 10^{+70}:\\ \;\;\;\;x + y\\ \mathbf{elif}\;a \leq 1.45 \cdot 10^{-49}:\\ \;\;\;\;\mathsf{fma}\left(y, \frac{z}{t}, x\right)\\ \mathbf{else}:\\ \;\;\;\;x + y\\ \end{array} \]
          10. Add Preprocessing

          Alternative 7: 62.9% accurate, 1.8× speedup?

          \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t \leq -6.4 \cdot 10^{+239}:\\ \;\;\;\;x\\ \mathbf{elif}\;t \leq 1.25 \cdot 10^{+117}:\\ \;\;\;\;x + y\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \end{array} \]
          (FPCore (x y z t a)
           :precision binary64
           (if (<= t -6.4e+239) x (if (<= t 1.25e+117) (+ x y) x)))
          double code(double x, double y, double z, double t, double a) {
          	double tmp;
          	if (t <= -6.4e+239) {
          		tmp = x;
          	} else if (t <= 1.25e+117) {
          		tmp = x + y;
          	} else {
          		tmp = x;
          	}
          	return tmp;
          }
          
          real(8) function code(x, y, z, t, a)
              real(8), intent (in) :: x
              real(8), intent (in) :: y
              real(8), intent (in) :: z
              real(8), intent (in) :: t
              real(8), intent (in) :: a
              real(8) :: tmp
              if (t <= (-6.4d+239)) then
                  tmp = x
              else if (t <= 1.25d+117) then
                  tmp = x + y
              else
                  tmp = x
              end if
              code = tmp
          end function
          
          public static double code(double x, double y, double z, double t, double a) {
          	double tmp;
          	if (t <= -6.4e+239) {
          		tmp = x;
          	} else if (t <= 1.25e+117) {
          		tmp = x + y;
          	} else {
          		tmp = x;
          	}
          	return tmp;
          }
          
          def code(x, y, z, t, a):
          	tmp = 0
          	if t <= -6.4e+239:
          		tmp = x
          	elif t <= 1.25e+117:
          		tmp = x + y
          	else:
          		tmp = x
          	return tmp
          
          function code(x, y, z, t, a)
          	tmp = 0.0
          	if (t <= -6.4e+239)
          		tmp = x;
          	elseif (t <= 1.25e+117)
          		tmp = Float64(x + y);
          	else
          		tmp = x;
          	end
          	return tmp
          end
          
          function tmp_2 = code(x, y, z, t, a)
          	tmp = 0.0;
          	if (t <= -6.4e+239)
          		tmp = x;
          	elseif (t <= 1.25e+117)
          		tmp = x + y;
          	else
          		tmp = x;
          	end
          	tmp_2 = tmp;
          end
          
          code[x_, y_, z_, t_, a_] := If[LessEqual[t, -6.4e+239], x, If[LessEqual[t, 1.25e+117], N[(x + y), $MachinePrecision], x]]
          
          \begin{array}{l}
          
          \\
          \begin{array}{l}
          \mathbf{if}\;t \leq -6.4 \cdot 10^{+239}:\\
          \;\;\;\;x\\
          
          \mathbf{elif}\;t \leq 1.25 \cdot 10^{+117}:\\
          \;\;\;\;x + y\\
          
          \mathbf{else}:\\
          \;\;\;\;x\\
          
          
          \end{array}
          \end{array}
          
          Derivation
          1. Split input into 2 regimes
          2. if t < -6.4000000000000003e239 or 1.24999999999999996e117 < t

            1. Initial program 44.2%

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

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

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

                \[\leadsto \left(x + y\right) + \color{blue}{1} \cdot \frac{y \cdot \left(z - t\right)}{t} \]
              3. *-lft-identityN/A

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

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

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

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

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

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

                \[\leadsto \mathsf{fma}\left(y, \frac{z - t}{t}, \color{blue}{y + x}\right) \]
              10. lower-+.f6452.5

                \[\leadsto \mathsf{fma}\left(y, \frac{z - t}{t}, \color{blue}{y + x}\right) \]
            5. Applied rewrites52.5%

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

              \[\leadsto x + \color{blue}{\left(y + -1 \cdot y\right)} \]
            7. Step-by-step derivation
              1. Applied rewrites75.3%

                \[\leadsto x + \color{blue}{0} \]
              2. Step-by-step derivation
                1. Applied rewrites75.3%

                  \[\leadsto x \]

                if -6.4000000000000003e239 < t < 1.24999999999999996e117

                1. Initial program 85.8%

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

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

                    \[\leadsto \color{blue}{y + x} \]
                  2. lower-+.f6470.2

                    \[\leadsto \color{blue}{y + x} \]
                5. Applied rewrites70.2%

                  \[\leadsto \color{blue}{y + x} \]
              3. Recombined 2 regimes into one program.
              4. Final simplification71.1%

                \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -6.4 \cdot 10^{+239}:\\ \;\;\;\;x\\ \mathbf{elif}\;t \leq 1.25 \cdot 10^{+117}:\\ \;\;\;\;x + y\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \]
              5. Add Preprocessing

              Alternative 8: 50.9% accurate, 29.0× speedup?

              \[\begin{array}{l} \\ x \end{array} \]
              (FPCore (x y z t a) :precision binary64 x)
              double code(double x, double y, double z, double t, double a) {
              	return x;
              }
              
              real(8) function code(x, y, z, t, a)
                  real(8), intent (in) :: x
                  real(8), intent (in) :: y
                  real(8), intent (in) :: z
                  real(8), intent (in) :: t
                  real(8), intent (in) :: a
                  code = x
              end function
              
              public static double code(double x, double y, double z, double t, double a) {
              	return x;
              }
              
              def code(x, y, z, t, a):
              	return x
              
              function code(x, y, z, t, a)
              	return x
              end
              
              function tmp = code(x, y, z, t, a)
              	tmp = x;
              end
              
              code[x_, y_, z_, t_, a_] := x
              
              \begin{array}{l}
              
              \\
              x
              \end{array}
              
              Derivation
              1. Initial program 78.2%

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

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

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

                  \[\leadsto \left(x + y\right) + \color{blue}{1} \cdot \frac{y \cdot \left(z - t\right)}{t} \]
                3. *-lft-identityN/A

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

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

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

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

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

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

                  \[\leadsto \mathsf{fma}\left(y, \frac{z - t}{t}, \color{blue}{y + x}\right) \]
                10. lower-+.f6449.9

                  \[\leadsto \mathsf{fma}\left(y, \frac{z - t}{t}, \color{blue}{y + x}\right) \]
              5. Applied rewrites49.9%

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

                \[\leadsto x + \color{blue}{\left(y + -1 \cdot y\right)} \]
              7. Step-by-step derivation
                1. Applied rewrites57.7%

                  \[\leadsto x + \color{blue}{0} \]
                2. Step-by-step derivation
                  1. Applied rewrites57.7%

                    \[\leadsto x \]
                  2. Add Preprocessing

                  Alternative 9: 2.7% accurate, 29.0× speedup?

                  \[\begin{array}{l} \\ 0 \end{array} \]
                  (FPCore (x y z t a) :precision binary64 0.0)
                  double code(double x, double y, double z, double t, double a) {
                  	return 0.0;
                  }
                  
                  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 = 0.0d0
                  end function
                  
                  public static double code(double x, double y, double z, double t, double a) {
                  	return 0.0;
                  }
                  
                  def code(x, y, z, t, a):
                  	return 0.0
                  
                  function code(x, y, z, t, a)
                  	return 0.0
                  end
                  
                  function tmp = code(x, y, z, t, a)
                  	tmp = 0.0;
                  end
                  
                  code[x_, y_, z_, t_, a_] := 0.0
                  
                  \begin{array}{l}
                  
                  \\
                  0
                  \end{array}
                  
                  Derivation
                  1. Initial program 78.2%

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

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

                      \[\leadsto \color{blue}{\left(x + y\right) + \left(\mathsf{neg}\left(-1\right)\right) \cdot \frac{t \cdot y}{a - t}} \]
                    2. metadata-evalN/A

                      \[\leadsto \left(x + y\right) + \color{blue}{1} \cdot \frac{t \cdot y}{a - t} \]
                    3. *-lft-identityN/A

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

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

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

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

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

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

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

                      \[\leadsto \mathsf{fma}\left(y, \frac{t}{a - t}, \color{blue}{y + x}\right) \]
                    11. lower-+.f6467.4

                      \[\leadsto \mathsf{fma}\left(y, \frac{t}{a - t}, \color{blue}{y + x}\right) \]
                  5. Applied rewrites67.4%

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

                    \[\leadsto y \cdot \color{blue}{\left(1 + \frac{t}{a - t}\right)} \]
                  7. Step-by-step derivation
                    1. Applied rewrites19.6%

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

                      \[\leadsto y + -1 \cdot \color{blue}{y} \]
                    3. Step-by-step derivation
                      1. Applied rewrites2.7%

                        \[\leadsto 0 \]
                      2. Add Preprocessing

                      Developer Target 1: 88.1% accurate, 0.3× speedup?

                      \[\begin{array}{l} \\ \begin{array}{l} t_1 := \left(y + x\right) - \left(\left(z - t\right) \cdot \frac{1}{a - t}\right) \cdot y\\ t_2 := \left(x + y\right) - \frac{\left(z - t\right) \cdot y}{a - t}\\ \mathbf{if}\;t\_2 < -1.3664970889390727 \cdot 10^{-7}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;t\_2 < 1.4754293444577233 \cdot 10^{-239}:\\ \;\;\;\;\frac{y \cdot \left(a - z\right) - x \cdot t}{a - t}\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
                      (FPCore (x y z t a)
                       :precision binary64
                       (let* ((t_1 (- (+ y x) (* (* (- z t) (/ 1.0 (- a t))) y)))
                              (t_2 (- (+ x y) (/ (* (- z t) y) (- a t)))))
                         (if (< t_2 -1.3664970889390727e-7)
                           t_1
                           (if (< t_2 1.4754293444577233e-239)
                             (/ (- (* y (- a z)) (* x t)) (- a t))
                             t_1))))
                      double code(double x, double y, double z, double t, double a) {
                      	double t_1 = (y + x) - (((z - t) * (1.0 / (a - t))) * y);
                      	double t_2 = (x + y) - (((z - t) * y) / (a - t));
                      	double tmp;
                      	if (t_2 < -1.3664970889390727e-7) {
                      		tmp = t_1;
                      	} else if (t_2 < 1.4754293444577233e-239) {
                      		tmp = ((y * (a - z)) - (x * t)) / (a - t);
                      	} else {
                      		tmp = t_1;
                      	}
                      	return tmp;
                      }
                      
                      real(8) function code(x, y, z, t, a)
                          real(8), intent (in) :: x
                          real(8), intent (in) :: y
                          real(8), intent (in) :: z
                          real(8), intent (in) :: t
                          real(8), intent (in) :: a
                          real(8) :: t_1
                          real(8) :: t_2
                          real(8) :: tmp
                          t_1 = (y + x) - (((z - t) * (1.0d0 / (a - t))) * y)
                          t_2 = (x + y) - (((z - t) * y) / (a - t))
                          if (t_2 < (-1.3664970889390727d-7)) then
                              tmp = t_1
                          else if (t_2 < 1.4754293444577233d-239) then
                              tmp = ((y * (a - z)) - (x * t)) / (a - t)
                          else
                              tmp = t_1
                          end if
                          code = tmp
                      end function
                      
                      public static double code(double x, double y, double z, double t, double a) {
                      	double t_1 = (y + x) - (((z - t) * (1.0 / (a - t))) * y);
                      	double t_2 = (x + y) - (((z - t) * y) / (a - t));
                      	double tmp;
                      	if (t_2 < -1.3664970889390727e-7) {
                      		tmp = t_1;
                      	} else if (t_2 < 1.4754293444577233e-239) {
                      		tmp = ((y * (a - z)) - (x * t)) / (a - t);
                      	} else {
                      		tmp = t_1;
                      	}
                      	return tmp;
                      }
                      
                      def code(x, y, z, t, a):
                      	t_1 = (y + x) - (((z - t) * (1.0 / (a - t))) * y)
                      	t_2 = (x + y) - (((z - t) * y) / (a - t))
                      	tmp = 0
                      	if t_2 < -1.3664970889390727e-7:
                      		tmp = t_1
                      	elif t_2 < 1.4754293444577233e-239:
                      		tmp = ((y * (a - z)) - (x * t)) / (a - t)
                      	else:
                      		tmp = t_1
                      	return tmp
                      
                      function code(x, y, z, t, a)
                      	t_1 = Float64(Float64(y + x) - Float64(Float64(Float64(z - t) * Float64(1.0 / Float64(a - t))) * y))
                      	t_2 = Float64(Float64(x + y) - Float64(Float64(Float64(z - t) * y) / Float64(a - t)))
                      	tmp = 0.0
                      	if (t_2 < -1.3664970889390727e-7)
                      		tmp = t_1;
                      	elseif (t_2 < 1.4754293444577233e-239)
                      		tmp = Float64(Float64(Float64(y * Float64(a - z)) - Float64(x * t)) / Float64(a - t));
                      	else
                      		tmp = t_1;
                      	end
                      	return tmp
                      end
                      
                      function tmp_2 = code(x, y, z, t, a)
                      	t_1 = (y + x) - (((z - t) * (1.0 / (a - t))) * y);
                      	t_2 = (x + y) - (((z - t) * y) / (a - t));
                      	tmp = 0.0;
                      	if (t_2 < -1.3664970889390727e-7)
                      		tmp = t_1;
                      	elseif (t_2 < 1.4754293444577233e-239)
                      		tmp = ((y * (a - z)) - (x * t)) / (a - t);
                      	else
                      		tmp = t_1;
                      	end
                      	tmp_2 = tmp;
                      end
                      
                      code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(N[(y + x), $MachinePrecision] - N[(N[(N[(z - t), $MachinePrecision] * N[(1.0 / N[(a - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * y), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(N[(x + y), $MachinePrecision] - N[(N[(N[(z - t), $MachinePrecision] * y), $MachinePrecision] / N[(a - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[Less[t$95$2, -1.3664970889390727e-7], t$95$1, If[Less[t$95$2, 1.4754293444577233e-239], N[(N[(N[(y * N[(a - z), $MachinePrecision]), $MachinePrecision] - N[(x * t), $MachinePrecision]), $MachinePrecision] / N[(a - t), $MachinePrecision]), $MachinePrecision], t$95$1]]]]
                      
                      \begin{array}{l}
                      
                      \\
                      \begin{array}{l}
                      t_1 := \left(y + x\right) - \left(\left(z - t\right) \cdot \frac{1}{a - t}\right) \cdot y\\
                      t_2 := \left(x + y\right) - \frac{\left(z - t\right) \cdot y}{a - t}\\
                      \mathbf{if}\;t\_2 < -1.3664970889390727 \cdot 10^{-7}:\\
                      \;\;\;\;t\_1\\
                      
                      \mathbf{elif}\;t\_2 < 1.4754293444577233 \cdot 10^{-239}:\\
                      \;\;\;\;\frac{y \cdot \left(a - z\right) - x \cdot t}{a - t}\\
                      
                      \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, B"
                        :precision binary64
                      
                        :alt
                        (! :herbie-platform default (if (< (- (+ x y) (/ (* (- z t) y) (- a t))) -13664970889390727/100000000000000000000000) (- (+ y x) (* (* (- z t) (/ 1 (- a t))) y)) (if (< (- (+ x y) (/ (* (- z t) y) (- a t))) 14754293444577233/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) (/ (- (* y (- a z)) (* x t)) (- a t)) (- (+ y x) (* (* (- z t) (/ 1 (- a t))) y)))))
                      
                        (- (+ x y) (/ (* (- z t) y) (- a t))))