Numeric.SpecFunctions:logGamma from math-functions-0.1.5.2

Percentage Accurate: 56.3% → 84.7%
Time: 24.7s
Alternatives: 17
Speedup: 3.0×

Specification

?
\[\begin{array}{l} \\ \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (/
  (+ (* (+ (* (+ (* (+ (* x y) z) y) 27464.7644705) y) 230661.510616) y) t)
  (+ (* (+ (* (+ (* (+ y a) y) b) y) c) y) i)))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	return ((((((((x * y) + z) * y) + 27464.7644705) * y) + 230661.510616) * y) + t) / (((((((y + a) * y) + b) * y) + c) * y) + i);
}
real(8) function code(x, y, z, t, a, b, c, i)
    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), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    code = ((((((((x * y) + z) * y) + 27464.7644705d0) * y) + 230661.510616d0) * y) + t) / (((((((y + a) * y) + b) * y) + c) * y) + i)
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	return ((((((((x * y) + z) * y) + 27464.7644705) * y) + 230661.510616) * y) + t) / (((((((y + a) * y) + b) * y) + c) * y) + i);
}
def code(x, y, z, t, a, b, c, i):
	return ((((((((x * y) + z) * y) + 27464.7644705) * y) + 230661.510616) * y) + t) / (((((((y + a) * y) + b) * y) + c) * y) + i)
function code(x, y, z, t, a, b, c, i)
	return Float64(Float64(Float64(Float64(Float64(Float64(Float64(Float64(Float64(x * y) + z) * y) + 27464.7644705) * y) + 230661.510616) * y) + t) / Float64(Float64(Float64(Float64(Float64(Float64(Float64(y + a) * y) + b) * y) + c) * y) + i))
end
function tmp = code(x, y, z, t, a, b, c, i)
	tmp = ((((((((x * y) + z) * y) + 27464.7644705) * y) + 230661.510616) * y) + t) / (((((((y + a) * y) + b) * y) + c) * y) + i);
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := N[(N[(N[(N[(N[(N[(N[(N[(N[(x * y), $MachinePrecision] + z), $MachinePrecision] * y), $MachinePrecision] + 27464.7644705), $MachinePrecision] * y), $MachinePrecision] + 230661.510616), $MachinePrecision] * y), $MachinePrecision] + t), $MachinePrecision] / N[(N[(N[(N[(N[(N[(N[(y + a), $MachinePrecision] * y), $MachinePrecision] + b), $MachinePrecision] * y), $MachinePrecision] + c), $MachinePrecision] * y), $MachinePrecision] + i), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i}
\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 17 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: 56.3% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (/
  (+ (* (+ (* (+ (* (+ (* x y) z) y) 27464.7644705) y) 230661.510616) y) t)
  (+ (* (+ (* (+ (* (+ y a) y) b) y) c) y) i)))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	return ((((((((x * y) + z) * y) + 27464.7644705) * y) + 230661.510616) * y) + t) / (((((((y + a) * y) + b) * y) + c) * y) + i);
}
real(8) function code(x, y, z, t, a, b, c, i)
    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), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    code = ((((((((x * y) + z) * y) + 27464.7644705d0) * y) + 230661.510616d0) * y) + t) / (((((((y + a) * y) + b) * y) + c) * y) + i)
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	return ((((((((x * y) + z) * y) + 27464.7644705) * y) + 230661.510616) * y) + t) / (((((((y + a) * y) + b) * y) + c) * y) + i);
}
def code(x, y, z, t, a, b, c, i):
	return ((((((((x * y) + z) * y) + 27464.7644705) * y) + 230661.510616) * y) + t) / (((((((y + a) * y) + b) * y) + c) * y) + i)
function code(x, y, z, t, a, b, c, i)
	return Float64(Float64(Float64(Float64(Float64(Float64(Float64(Float64(Float64(x * y) + z) * y) + 27464.7644705) * y) + 230661.510616) * y) + t) / Float64(Float64(Float64(Float64(Float64(Float64(Float64(y + a) * y) + b) * y) + c) * y) + i))
end
function tmp = code(x, y, z, t, a, b, c, i)
	tmp = ((((((((x * y) + z) * y) + 27464.7644705) * y) + 230661.510616) * y) + t) / (((((((y + a) * y) + b) * y) + c) * y) + i);
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := N[(N[(N[(N[(N[(N[(N[(N[(N[(x * y), $MachinePrecision] + z), $MachinePrecision] * y), $MachinePrecision] + 27464.7644705), $MachinePrecision] * y), $MachinePrecision] + 230661.510616), $MachinePrecision] * y), $MachinePrecision] + t), $MachinePrecision] / N[(N[(N[(N[(N[(N[(N[(y + a), $MachinePrecision] * y), $MachinePrecision] + b), $MachinePrecision] * y), $MachinePrecision] + c), $MachinePrecision] * y), $MachinePrecision] + i), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i}
\end{array}

Alternative 1: 84.7% accurate, 0.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\frac{y \cdot \left(y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616\right) + t}{i + y \cdot \left(c + y \cdot \left(y \cdot \left(y + a\right) + b\right)\right)} \leq \infty:\\ \;\;\;\;\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(x, y, z\right), y, 27464.7644705\right), y, 230661.510616\right), y, t\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(y + a, y, b\right), y, c\right), y, i\right)}\\ \mathbf{else}:\\ \;\;\;\;\frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (<=
      (/
       (+
        (* y (+ (* y (+ (* y (+ (* x y) z)) 27464.7644705)) 230661.510616))
        t)
       (+ i (* y (+ c (* y (+ (* y (+ y a)) b))))))
      INFINITY)
   (/
    (fma (fma (fma (fma x y z) y 27464.7644705) y 230661.510616) y t)
    (fma (fma (fma (+ y a) y b) y c) y i))
   (+ (/ z y) (- x (/ a (/ y x))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if ((((y * ((y * ((y * ((x * y) + z)) + 27464.7644705)) + 230661.510616)) + t) / (i + (y * (c + (y * ((y * (y + a)) + b)))))) <= ((double) INFINITY)) {
		tmp = fma(fma(fma(fma(x, y, z), y, 27464.7644705), y, 230661.510616), y, t) / fma(fma(fma((y + a), y, b), y, c), y, i);
	} else {
		tmp = (z / y) + (x - (a / (y / x)));
	}
	return tmp;
}
function code(x, y, z, t, a, b, c, i)
	tmp = 0.0
	if (Float64(Float64(Float64(y * Float64(Float64(y * Float64(Float64(y * Float64(Float64(x * y) + z)) + 27464.7644705)) + 230661.510616)) + t) / Float64(i + Float64(y * Float64(c + Float64(y * Float64(Float64(y * Float64(y + a)) + b)))))) <= Inf)
		tmp = Float64(fma(fma(fma(fma(x, y, z), y, 27464.7644705), y, 230661.510616), y, t) / fma(fma(fma(Float64(y + a), y, b), y, c), y, i));
	else
		tmp = Float64(Float64(z / y) + Float64(x - Float64(a / Float64(y / x))));
	end
	return tmp
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := If[LessEqual[N[(N[(N[(y * N[(N[(y * N[(N[(y * N[(N[(x * y), $MachinePrecision] + z), $MachinePrecision]), $MachinePrecision] + 27464.7644705), $MachinePrecision]), $MachinePrecision] + 230661.510616), $MachinePrecision]), $MachinePrecision] + t), $MachinePrecision] / N[(i + N[(y * N[(c + N[(y * N[(N[(y * N[(y + a), $MachinePrecision]), $MachinePrecision] + b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], Infinity], N[(N[(N[(N[(N[(x * y + z), $MachinePrecision] * y + 27464.7644705), $MachinePrecision] * y + 230661.510616), $MachinePrecision] * y + t), $MachinePrecision] / N[(N[(N[(N[(y + a), $MachinePrecision] * y + b), $MachinePrecision] * y + c), $MachinePrecision] * y + i), $MachinePrecision]), $MachinePrecision], N[(N[(z / y), $MachinePrecision] + N[(x - N[(a / N[(y / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;\frac{y \cdot \left(y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616\right) + t}{i + y \cdot \left(c + y \cdot \left(y \cdot \left(y + a\right) + b\right)\right)} \leq \infty:\\
\;\;\;\;\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(x, y, z\right), y, 27464.7644705\right), y, 230661.510616\right), y, t\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(y + a, y, b\right), y, c\right), y, i\right)}\\

\mathbf{else}:\\
\;\;\;\;\frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (/.f64 (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 (*.f64 x y) z) y) 54929528941/2000000) y) 28832688827/125000) y) t) (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 y a) y) b) y) c) y) i)) < +inf.0

    1. Initial program 92.2%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Step-by-step derivation
      1. fma-def92.2%

        \[\leadsto \frac{\color{blue}{\mathsf{fma}\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616, y, t\right)}}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
      2. fma-def92.2%

        \[\leadsto \frac{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705, y, 230661.510616\right)}, y, t\right)}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
      3. fma-def92.2%

        \[\leadsto \frac{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(x \cdot y + z, y, 27464.7644705\right)}, y, 230661.510616\right), y, t\right)}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
      4. fma-def92.2%

        \[\leadsto \frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(x, y, z\right)}, y, 27464.7644705\right), y, 230661.510616\right), y, t\right)}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
      5. fma-def92.2%

        \[\leadsto \frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(x, y, z\right), y, 27464.7644705\right), y, 230661.510616\right), y, t\right)}{\color{blue}{\mathsf{fma}\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c, y, i\right)}} \]
      6. fma-def92.2%

        \[\leadsto \frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(x, y, z\right), y, 27464.7644705\right), y, 230661.510616\right), y, t\right)}{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(y + a\right) \cdot y + b, y, c\right)}, y, i\right)} \]
      7. fma-def92.2%

        \[\leadsto \frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(x, y, z\right), y, 27464.7644705\right), y, 230661.510616\right), y, t\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(y + a, y, b\right)}, y, c\right), y, i\right)} \]
    3. Simplified92.2%

      \[\leadsto \color{blue}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(x, y, z\right), y, 27464.7644705\right), y, 230661.510616\right), y, t\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(y + a, y, b\right), y, c\right), y, i\right)}} \]

    if +inf.0 < (/.f64 (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 (*.f64 x y) z) y) 54929528941/2000000) y) 28832688827/125000) y) t) (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 y a) y) b) y) c) y) i))

    1. Initial program 0.0%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Taylor expanded in y around inf 55.0%

      \[\leadsto \color{blue}{\left(\frac{z}{y} + x\right) - \frac{a \cdot x}{y}} \]
    3. Step-by-step derivation
      1. associate--l+55.0%

        \[\leadsto \color{blue}{\frac{z}{y} + \left(x - \frac{a \cdot x}{y}\right)} \]
      2. associate-/l*63.4%

        \[\leadsto \frac{z}{y} + \left(x - \color{blue}{\frac{a}{\frac{y}{x}}}\right) \]
    4. Simplified63.4%

      \[\leadsto \color{blue}{\frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification82.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{y \cdot \left(y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616\right) + t}{i + y \cdot \left(c + y \cdot \left(y \cdot \left(y + a\right) + b\right)\right)} \leq \infty:\\ \;\;\;\;\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(x, y, z\right), y, 27464.7644705\right), y, 230661.510616\right), y, t\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(y + a, y, b\right), y, c\right), y, i\right)}\\ \mathbf{else}:\\ \;\;\;\;\frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\ \end{array} \]

Alternative 2: 84.7% accurate, 0.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{y \cdot \left(y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616\right) + t}{i + y \cdot \left(c + y \cdot \left(y \cdot \left(y + a\right) + b\right)\right)}\\ \mathbf{if}\;t_1 \leq \infty:\\ \;\;\;\;t_1\\ \mathbf{else}:\\ \;\;\;\;\frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (let* ((t_1
         (/
          (+
           (* y (+ (* y (+ (* y (+ (* x y) z)) 27464.7644705)) 230661.510616))
           t)
          (+ i (* y (+ c (* y (+ (* y (+ y a)) b))))))))
   (if (<= t_1 INFINITY) t_1 (+ (/ z y) (- x (/ a (/ y x)))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double t_1 = ((y * ((y * ((y * ((x * y) + z)) + 27464.7644705)) + 230661.510616)) + t) / (i + (y * (c + (y * ((y * (y + a)) + b)))));
	double tmp;
	if (t_1 <= ((double) INFINITY)) {
		tmp = t_1;
	} else {
		tmp = (z / y) + (x - (a / (y / x)));
	}
	return tmp;
}
public static double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double t_1 = ((y * ((y * ((y * ((x * y) + z)) + 27464.7644705)) + 230661.510616)) + t) / (i + (y * (c + (y * ((y * (y + a)) + b)))));
	double tmp;
	if (t_1 <= Double.POSITIVE_INFINITY) {
		tmp = t_1;
	} else {
		tmp = (z / y) + (x - (a / (y / x)));
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	t_1 = ((y * ((y * ((y * ((x * y) + z)) + 27464.7644705)) + 230661.510616)) + t) / (i + (y * (c + (y * ((y * (y + a)) + b)))))
	tmp = 0
	if t_1 <= math.inf:
		tmp = t_1
	else:
		tmp = (z / y) + (x - (a / (y / x)))
	return tmp
function code(x, y, z, t, a, b, c, i)
	t_1 = Float64(Float64(Float64(y * Float64(Float64(y * Float64(Float64(y * Float64(Float64(x * y) + z)) + 27464.7644705)) + 230661.510616)) + t) / Float64(i + Float64(y * Float64(c + Float64(y * Float64(Float64(y * Float64(y + a)) + b))))))
	tmp = 0.0
	if (t_1 <= Inf)
		tmp = t_1;
	else
		tmp = Float64(Float64(z / y) + Float64(x - Float64(a / Float64(y / x))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	t_1 = ((y * ((y * ((y * ((x * y) + z)) + 27464.7644705)) + 230661.510616)) + t) / (i + (y * (c + (y * ((y * (y + a)) + b)))));
	tmp = 0.0;
	if (t_1 <= Inf)
		tmp = t_1;
	else
		tmp = (z / y) + (x - (a / (y / x)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := Block[{t$95$1 = N[(N[(N[(y * N[(N[(y * N[(N[(y * N[(N[(x * y), $MachinePrecision] + z), $MachinePrecision]), $MachinePrecision] + 27464.7644705), $MachinePrecision]), $MachinePrecision] + 230661.510616), $MachinePrecision]), $MachinePrecision] + t), $MachinePrecision] / N[(i + N[(y * N[(c + N[(y * N[(N[(y * N[(y + a), $MachinePrecision]), $MachinePrecision] + b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$1, Infinity], t$95$1, N[(N[(z / y), $MachinePrecision] + N[(x - N[(a / N[(y / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \frac{y \cdot \left(y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616\right) + t}{i + y \cdot \left(c + y \cdot \left(y \cdot \left(y + a\right) + b\right)\right)}\\
\mathbf{if}\;t_1 \leq \infty:\\
\;\;\;\;t_1\\

\mathbf{else}:\\
\;\;\;\;\frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (/.f64 (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 (*.f64 x y) z) y) 54929528941/2000000) y) 28832688827/125000) y) t) (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 y a) y) b) y) c) y) i)) < +inf.0

    1. Initial program 92.2%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]

    if +inf.0 < (/.f64 (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 (*.f64 x y) z) y) 54929528941/2000000) y) 28832688827/125000) y) t) (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 y a) y) b) y) c) y) i))

    1. Initial program 0.0%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Taylor expanded in y around inf 55.0%

      \[\leadsto \color{blue}{\left(\frac{z}{y} + x\right) - \frac{a \cdot x}{y}} \]
    3. Step-by-step derivation
      1. associate--l+55.0%

        \[\leadsto \color{blue}{\frac{z}{y} + \left(x - \frac{a \cdot x}{y}\right)} \]
      2. associate-/l*63.4%

        \[\leadsto \frac{z}{y} + \left(x - \color{blue}{\frac{a}{\frac{y}{x}}}\right) \]
    4. Simplified63.4%

      \[\leadsto \color{blue}{\frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification82.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{y \cdot \left(y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616\right) + t}{i + y \cdot \left(c + y \cdot \left(y \cdot \left(y + a\right) + b\right)\right)} \leq \infty:\\ \;\;\;\;\frac{y \cdot \left(y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616\right) + t}{i + y \cdot \left(c + y \cdot \left(y \cdot \left(y + a\right) + b\right)\right)}\\ \mathbf{else}:\\ \;\;\;\;\frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\ \end{array} \]

Alternative 3: 81.2% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -4 \cdot 10^{+65} \lor \neg \left(y \leq 7.2 \cdot 10^{+53}\right):\\ \;\;\;\;\frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{1}{\frac{i + y \cdot \left(c + y \cdot \left(y \cdot \left(y + a\right) + b\right)\right)}{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}}\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (or (<= y -4e+65) (not (<= y 7.2e+53)))
   (+ (/ z y) (- x (/ a (/ y x))))
   (/
    1.0
    (/
     (+ i (* y (+ c (* y (+ (* y (+ y a)) b)))))
     (+ t (* y (+ 230661.510616 (* y (+ 27464.7644705 (* y z))))))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if ((y <= -4e+65) || !(y <= 7.2e+53)) {
		tmp = (z / y) + (x - (a / (y / x)));
	} else {
		tmp = 1.0 / ((i + (y * (c + (y * ((y * (y + a)) + b))))) / (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i)
    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), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8) :: tmp
    if ((y <= (-4d+65)) .or. (.not. (y <= 7.2d+53))) then
        tmp = (z / y) + (x - (a / (y / x)))
    else
        tmp = 1.0d0 / ((i + (y * (c + (y * ((y * (y + a)) + b))))) / (t + (y * (230661.510616d0 + (y * (27464.7644705d0 + (y * z)))))))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if ((y <= -4e+65) || !(y <= 7.2e+53)) {
		tmp = (z / y) + (x - (a / (y / x)));
	} else {
		tmp = 1.0 / ((i + (y * (c + (y * ((y * (y + a)) + b))))) / (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))));
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	tmp = 0
	if (y <= -4e+65) or not (y <= 7.2e+53):
		tmp = (z / y) + (x - (a / (y / x)))
	else:
		tmp = 1.0 / ((i + (y * (c + (y * ((y * (y + a)) + b))))) / (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))))
	return tmp
function code(x, y, z, t, a, b, c, i)
	tmp = 0.0
	if ((y <= -4e+65) || !(y <= 7.2e+53))
		tmp = Float64(Float64(z / y) + Float64(x - Float64(a / Float64(y / x))));
	else
		tmp = Float64(1.0 / Float64(Float64(i + Float64(y * Float64(c + Float64(y * Float64(Float64(y * Float64(y + a)) + b))))) / Float64(t + Float64(y * Float64(230661.510616 + Float64(y * Float64(27464.7644705 + Float64(y * z))))))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	tmp = 0.0;
	if ((y <= -4e+65) || ~((y <= 7.2e+53)))
		tmp = (z / y) + (x - (a / (y / x)));
	else
		tmp = 1.0 / ((i + (y * (c + (y * ((y * (y + a)) + b))))) / (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := If[Or[LessEqual[y, -4e+65], N[Not[LessEqual[y, 7.2e+53]], $MachinePrecision]], N[(N[(z / y), $MachinePrecision] + N[(x - N[(a / N[(y / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(1.0 / N[(N[(i + N[(y * N[(c + N[(y * N[(N[(y * N[(y + a), $MachinePrecision]), $MachinePrecision] + b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(t + N[(y * N[(230661.510616 + N[(y * N[(27464.7644705 + N[(y * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -4 \cdot 10^{+65} \lor \neg \left(y \leq 7.2 \cdot 10^{+53}\right):\\
\;\;\;\;\frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\

\mathbf{else}:\\
\;\;\;\;\frac{1}{\frac{i + y \cdot \left(c + y \cdot \left(y \cdot \left(y + a\right) + b\right)\right)}{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -4e65 or 7.2e53 < y

    1. Initial program 1.3%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Taylor expanded in y around inf 57.7%

      \[\leadsto \color{blue}{\left(\frac{z}{y} + x\right) - \frac{a \cdot x}{y}} \]
    3. Step-by-step derivation
      1. associate--l+57.7%

        \[\leadsto \color{blue}{\frac{z}{y} + \left(x - \frac{a \cdot x}{y}\right)} \]
      2. associate-/l*66.0%

        \[\leadsto \frac{z}{y} + \left(x - \color{blue}{\frac{a}{\frac{y}{x}}}\right) \]
    4. Simplified66.0%

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

    if -4e65 < y < 7.2e53

    1. Initial program 92.0%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Step-by-step derivation
      1. clear-num91.8%

        \[\leadsto \color{blue}{\frac{1}{\frac{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i}{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}}} \]
      2. inv-pow91.8%

        \[\leadsto \color{blue}{{\left(\frac{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i}{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}\right)}^{-1}} \]
    3. Applied egg-rr91.8%

      \[\leadsto \color{blue}{{\left(\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(x, y, z\right), 27464.7644705\right), 230661.510616\right), t\right)}\right)}^{-1}} \]
    4. Step-by-step derivation
      1. unpow-191.8%

        \[\leadsto \color{blue}{\frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(x, y, z\right), 27464.7644705\right), 230661.510616\right), t\right)}}} \]
      2. fma-udef91.8%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{x \cdot y + z}, 27464.7644705\right), 230661.510616\right), t\right)}} \]
      3. *-commutative91.8%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{y \cdot x} + z, 27464.7644705\right), 230661.510616\right), t\right)}} \]
      4. fma-def91.8%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{\mathsf{fma}\left(y, x, z\right)}, 27464.7644705\right), 230661.510616\right), t\right)}} \]
    5. Simplified91.8%

      \[\leadsto \color{blue}{\frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, x, z\right), 27464.7644705\right), 230661.510616\right), t\right)}}} \]
    6. Taylor expanded in x around 0 86.4%

      \[\leadsto \frac{1}{\color{blue}{\frac{y \cdot \left(c + y \cdot \left(\left(y + a\right) \cdot y + b\right)\right) + i}{y \cdot \left(230661.510616 + y \cdot \left(y \cdot z + 27464.7644705\right)\right) + t}}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification79.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -4 \cdot 10^{+65} \lor \neg \left(y \leq 7.2 \cdot 10^{+53}\right):\\ \;\;\;\;\frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{1}{\frac{i + y \cdot \left(c + y \cdot \left(y \cdot \left(y + a\right) + b\right)\right)}{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}}\\ \end{array} \]

Alternative 4: 75.5% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -8.8 \cdot 10^{+45}:\\ \;\;\;\;\frac{1}{\frac{1}{x} + \frac{\frac{a}{x} - \frac{z}{x \cdot x}}{y}}\\ \mathbf{elif}\;y \leq 4.9 \cdot 10^{+51}:\\ \;\;\;\;\frac{y \cdot \left(y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616\right) + t}{i + y \cdot \left(c + a \cdot \left(y \cdot y\right)\right)}\\ \mathbf{else}:\\ \;\;\;\;\frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (<= y -8.8e+45)
   (/ 1.0 (+ (/ 1.0 x) (/ (- (/ a x) (/ z (* x x))) y)))
   (if (<= y 4.9e+51)
     (/
      (+ (* y (+ (* y (+ (* y (+ (* x y) z)) 27464.7644705)) 230661.510616)) t)
      (+ i (* y (+ c (* a (* y y))))))
     (+ (/ z y) (- x (/ a (/ y x)))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if (y <= -8.8e+45) {
		tmp = 1.0 / ((1.0 / x) + (((a / x) - (z / (x * x))) / y));
	} else if (y <= 4.9e+51) {
		tmp = ((y * ((y * ((y * ((x * y) + z)) + 27464.7644705)) + 230661.510616)) + t) / (i + (y * (c + (a * (y * y)))));
	} else {
		tmp = (z / y) + (x - (a / (y / x)));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i)
    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), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8) :: tmp
    if (y <= (-8.8d+45)) then
        tmp = 1.0d0 / ((1.0d0 / x) + (((a / x) - (z / (x * x))) / y))
    else if (y <= 4.9d+51) then
        tmp = ((y * ((y * ((y * ((x * y) + z)) + 27464.7644705d0)) + 230661.510616d0)) + t) / (i + (y * (c + (a * (y * y)))))
    else
        tmp = (z / y) + (x - (a / (y / x)))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if (y <= -8.8e+45) {
		tmp = 1.0 / ((1.0 / x) + (((a / x) - (z / (x * x))) / y));
	} else if (y <= 4.9e+51) {
		tmp = ((y * ((y * ((y * ((x * y) + z)) + 27464.7644705)) + 230661.510616)) + t) / (i + (y * (c + (a * (y * y)))));
	} else {
		tmp = (z / y) + (x - (a / (y / x)));
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	tmp = 0
	if y <= -8.8e+45:
		tmp = 1.0 / ((1.0 / x) + (((a / x) - (z / (x * x))) / y))
	elif y <= 4.9e+51:
		tmp = ((y * ((y * ((y * ((x * y) + z)) + 27464.7644705)) + 230661.510616)) + t) / (i + (y * (c + (a * (y * y)))))
	else:
		tmp = (z / y) + (x - (a / (y / x)))
	return tmp
function code(x, y, z, t, a, b, c, i)
	tmp = 0.0
	if (y <= -8.8e+45)
		tmp = Float64(1.0 / Float64(Float64(1.0 / x) + Float64(Float64(Float64(a / x) - Float64(z / Float64(x * x))) / y)));
	elseif (y <= 4.9e+51)
		tmp = Float64(Float64(Float64(y * Float64(Float64(y * Float64(Float64(y * Float64(Float64(x * y) + z)) + 27464.7644705)) + 230661.510616)) + t) / Float64(i + Float64(y * Float64(c + Float64(a * Float64(y * y))))));
	else
		tmp = Float64(Float64(z / y) + Float64(x - Float64(a / Float64(y / x))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	tmp = 0.0;
	if (y <= -8.8e+45)
		tmp = 1.0 / ((1.0 / x) + (((a / x) - (z / (x * x))) / y));
	elseif (y <= 4.9e+51)
		tmp = ((y * ((y * ((y * ((x * y) + z)) + 27464.7644705)) + 230661.510616)) + t) / (i + (y * (c + (a * (y * y)))));
	else
		tmp = (z / y) + (x - (a / (y / x)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := If[LessEqual[y, -8.8e+45], N[(1.0 / N[(N[(1.0 / x), $MachinePrecision] + N[(N[(N[(a / x), $MachinePrecision] - N[(z / N[(x * x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 4.9e+51], N[(N[(N[(y * N[(N[(y * N[(N[(y * N[(N[(x * y), $MachinePrecision] + z), $MachinePrecision]), $MachinePrecision] + 27464.7644705), $MachinePrecision]), $MachinePrecision] + 230661.510616), $MachinePrecision]), $MachinePrecision] + t), $MachinePrecision] / N[(i + N[(y * N[(c + N[(a * N[(y * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(z / y), $MachinePrecision] + N[(x - N[(a / N[(y / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -8.8 \cdot 10^{+45}:\\
\;\;\;\;\frac{1}{\frac{1}{x} + \frac{\frac{a}{x} - \frac{z}{x \cdot x}}{y}}\\

\mathbf{elif}\;y \leq 4.9 \cdot 10^{+51}:\\
\;\;\;\;\frac{y \cdot \left(y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616\right) + t}{i + y \cdot \left(c + a \cdot \left(y \cdot y\right)\right)}\\

\mathbf{else}:\\
\;\;\;\;\frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -8.8000000000000001e45

    1. Initial program 2.6%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Step-by-step derivation
      1. clear-num2.6%

        \[\leadsto \color{blue}{\frac{1}{\frac{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i}{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}}} \]
      2. inv-pow2.6%

        \[\leadsto \color{blue}{{\left(\frac{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i}{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}\right)}^{-1}} \]
    3. Applied egg-rr2.6%

      \[\leadsto \color{blue}{{\left(\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(x, y, z\right), 27464.7644705\right), 230661.510616\right), t\right)}\right)}^{-1}} \]
    4. Step-by-step derivation
      1. unpow-12.6%

        \[\leadsto \color{blue}{\frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(x, y, z\right), 27464.7644705\right), 230661.510616\right), t\right)}}} \]
      2. fma-udef2.6%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{x \cdot y + z}, 27464.7644705\right), 230661.510616\right), t\right)}} \]
      3. *-commutative2.6%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{y \cdot x} + z, 27464.7644705\right), 230661.510616\right), t\right)}} \]
      4. fma-def2.6%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{\mathsf{fma}\left(y, x, z\right)}, 27464.7644705\right), 230661.510616\right), t\right)}} \]
    5. Simplified2.6%

      \[\leadsto \color{blue}{\frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, x, z\right), 27464.7644705\right), 230661.510616\right), t\right)}}} \]
    6. Taylor expanded in y around -inf 61.8%

      \[\leadsto \frac{1}{\color{blue}{\frac{1}{x} + -1 \cdot \frac{-1 \cdot \frac{a}{x} - -1 \cdot \frac{z}{{x}^{2}}}{y}}} \]
    7. Step-by-step derivation
      1. mul-1-neg61.8%

        \[\leadsto \frac{1}{\frac{1}{x} + \color{blue}{\left(-\frac{-1 \cdot \frac{a}{x} - -1 \cdot \frac{z}{{x}^{2}}}{y}\right)}} \]
      2. distribute-lft-out--61.8%

        \[\leadsto \frac{1}{\frac{1}{x} + \left(-\frac{\color{blue}{-1 \cdot \left(\frac{a}{x} - \frac{z}{{x}^{2}}\right)}}{y}\right)} \]
      3. unpow261.8%

        \[\leadsto \frac{1}{\frac{1}{x} + \left(-\frac{-1 \cdot \left(\frac{a}{x} - \frac{z}{\color{blue}{x \cdot x}}\right)}{y}\right)} \]
    8. Simplified61.8%

      \[\leadsto \frac{1}{\color{blue}{\frac{1}{x} + \left(-\frac{-1 \cdot \left(\frac{a}{x} - \frac{z}{x \cdot x}\right)}{y}\right)}} \]

    if -8.8000000000000001e45 < y < 4.89999999999999983e51

    1. Initial program 94.2%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Taylor expanded in a around inf 87.4%

      \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{{y}^{2} \cdot a} + c\right) \cdot y + i} \]
    3. Step-by-step derivation
      1. *-commutative81.2%

        \[\leadsto \frac{\left(z \cdot \left(y \cdot y\right) + 230661.510616\right) \cdot y + t}{\left(\color{blue}{a \cdot {y}^{2}} + c\right) \cdot y + i} \]
      2. unpow281.2%

        \[\leadsto \frac{\left(z \cdot \left(y \cdot y\right) + 230661.510616\right) \cdot y + t}{\left(a \cdot \color{blue}{\left(y \cdot y\right)} + c\right) \cdot y + i} \]
    4. Simplified87.4%

      \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{a \cdot \left(y \cdot y\right)} + c\right) \cdot y + i} \]

    if 4.89999999999999983e51 < y

    1. Initial program 2.1%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Taylor expanded in y around inf 58.2%

      \[\leadsto \color{blue}{\left(\frac{z}{y} + x\right) - \frac{a \cdot x}{y}} \]
    3. Step-by-step derivation
      1. associate--l+58.2%

        \[\leadsto \color{blue}{\frac{z}{y} + \left(x - \frac{a \cdot x}{y}\right)} \]
      2. associate-/l*64.3%

        \[\leadsto \frac{z}{y} + \left(x - \color{blue}{\frac{a}{\frac{y}{x}}}\right) \]
    4. Simplified64.3%

      \[\leadsto \color{blue}{\frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification78.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -8.8 \cdot 10^{+45}:\\ \;\;\;\;\frac{1}{\frac{1}{x} + \frac{\frac{a}{x} - \frac{z}{x \cdot x}}{y}}\\ \mathbf{elif}\;y \leq 4.9 \cdot 10^{+51}:\\ \;\;\;\;\frac{y \cdot \left(y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616\right) + t}{i + y \cdot \left(c + a \cdot \left(y \cdot y\right)\right)}\\ \mathbf{else}:\\ \;\;\;\;\frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\ \end{array} \]

Alternative 5: 76.9% accurate, 1.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\ t_2 := t + y \cdot \left(230661.510616 + z \cdot \left(y \cdot y\right)\right)\\ \mathbf{if}\;y \leq -3.7 \cdot 10^{+63}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;y \leq -9.5 \cdot 10^{-47}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot 27464.7644705\right)}{i + y \cdot \left(c + y \cdot \left(y \cdot \left(y + a\right) + b\right)\right)}\\ \mathbf{elif}\;y \leq 5.4 \cdot 10^{-64}:\\ \;\;\;\;\frac{t_2}{i + y \cdot \left(c + y \cdot b\right)}\\ \mathbf{elif}\;y \leq 2.3 \cdot 10^{+15}:\\ \;\;\;\;\frac{t_2}{i + y \cdot \left(c + a \cdot \left(y \cdot y\right)\right)}\\ \mathbf{elif}\;y \leq 2.5 \cdot 10^{+204}:\\ \;\;\;\;\frac{1}{\frac{1}{x} + \frac{\frac{a}{x} - \frac{z}{x \cdot x}}{y}}\\ \mathbf{else}:\\ \;\;\;\;t_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (let* ((t_1 (+ (/ z y) (- x (/ a (/ y x)))))
        (t_2 (+ t (* y (+ 230661.510616 (* z (* y y)))))))
   (if (<= y -3.7e+63)
     t_1
     (if (<= y -9.5e-47)
       (/
        (+ t (* y (+ 230661.510616 (* y 27464.7644705))))
        (+ i (* y (+ c (* y (+ (* y (+ y a)) b))))))
       (if (<= y 5.4e-64)
         (/ t_2 (+ i (* y (+ c (* y b)))))
         (if (<= y 2.3e+15)
           (/ t_2 (+ i (* y (+ c (* a (* y y))))))
           (if (<= y 2.5e+204)
             (/ 1.0 (+ (/ 1.0 x) (/ (- (/ a x) (/ z (* x x))) y)))
             t_1)))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double t_1 = (z / y) + (x - (a / (y / x)));
	double t_2 = t + (y * (230661.510616 + (z * (y * y))));
	double tmp;
	if (y <= -3.7e+63) {
		tmp = t_1;
	} else if (y <= -9.5e-47) {
		tmp = (t + (y * (230661.510616 + (y * 27464.7644705)))) / (i + (y * (c + (y * ((y * (y + a)) + b)))));
	} else if (y <= 5.4e-64) {
		tmp = t_2 / (i + (y * (c + (y * b))));
	} else if (y <= 2.3e+15) {
		tmp = t_2 / (i + (y * (c + (a * (y * y)))));
	} else if (y <= 2.5e+204) {
		tmp = 1.0 / ((1.0 / x) + (((a / x) - (z / (x * x))) / y));
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i)
    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), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8) :: t_1
    real(8) :: t_2
    real(8) :: tmp
    t_1 = (z / y) + (x - (a / (y / x)))
    t_2 = t + (y * (230661.510616d0 + (z * (y * y))))
    if (y <= (-3.7d+63)) then
        tmp = t_1
    else if (y <= (-9.5d-47)) then
        tmp = (t + (y * (230661.510616d0 + (y * 27464.7644705d0)))) / (i + (y * (c + (y * ((y * (y + a)) + b)))))
    else if (y <= 5.4d-64) then
        tmp = t_2 / (i + (y * (c + (y * b))))
    else if (y <= 2.3d+15) then
        tmp = t_2 / (i + (y * (c + (a * (y * y)))))
    else if (y <= 2.5d+204) then
        tmp = 1.0d0 / ((1.0d0 / x) + (((a / x) - (z / (x * x))) / y))
    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 b, double c, double i) {
	double t_1 = (z / y) + (x - (a / (y / x)));
	double t_2 = t + (y * (230661.510616 + (z * (y * y))));
	double tmp;
	if (y <= -3.7e+63) {
		tmp = t_1;
	} else if (y <= -9.5e-47) {
		tmp = (t + (y * (230661.510616 + (y * 27464.7644705)))) / (i + (y * (c + (y * ((y * (y + a)) + b)))));
	} else if (y <= 5.4e-64) {
		tmp = t_2 / (i + (y * (c + (y * b))));
	} else if (y <= 2.3e+15) {
		tmp = t_2 / (i + (y * (c + (a * (y * y)))));
	} else if (y <= 2.5e+204) {
		tmp = 1.0 / ((1.0 / x) + (((a / x) - (z / (x * x))) / y));
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	t_1 = (z / y) + (x - (a / (y / x)))
	t_2 = t + (y * (230661.510616 + (z * (y * y))))
	tmp = 0
	if y <= -3.7e+63:
		tmp = t_1
	elif y <= -9.5e-47:
		tmp = (t + (y * (230661.510616 + (y * 27464.7644705)))) / (i + (y * (c + (y * ((y * (y + a)) + b)))))
	elif y <= 5.4e-64:
		tmp = t_2 / (i + (y * (c + (y * b))))
	elif y <= 2.3e+15:
		tmp = t_2 / (i + (y * (c + (a * (y * y)))))
	elif y <= 2.5e+204:
		tmp = 1.0 / ((1.0 / x) + (((a / x) - (z / (x * x))) / y))
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b, c, i)
	t_1 = Float64(Float64(z / y) + Float64(x - Float64(a / Float64(y / x))))
	t_2 = Float64(t + Float64(y * Float64(230661.510616 + Float64(z * Float64(y * y)))))
	tmp = 0.0
	if (y <= -3.7e+63)
		tmp = t_1;
	elseif (y <= -9.5e-47)
		tmp = Float64(Float64(t + Float64(y * Float64(230661.510616 + Float64(y * 27464.7644705)))) / Float64(i + Float64(y * Float64(c + Float64(y * Float64(Float64(y * Float64(y + a)) + b))))));
	elseif (y <= 5.4e-64)
		tmp = Float64(t_2 / Float64(i + Float64(y * Float64(c + Float64(y * b)))));
	elseif (y <= 2.3e+15)
		tmp = Float64(t_2 / Float64(i + Float64(y * Float64(c + Float64(a * Float64(y * y))))));
	elseif (y <= 2.5e+204)
		tmp = Float64(1.0 / Float64(Float64(1.0 / x) + Float64(Float64(Float64(a / x) - Float64(z / Float64(x * x))) / y)));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	t_1 = (z / y) + (x - (a / (y / x)));
	t_2 = t + (y * (230661.510616 + (z * (y * y))));
	tmp = 0.0;
	if (y <= -3.7e+63)
		tmp = t_1;
	elseif (y <= -9.5e-47)
		tmp = (t + (y * (230661.510616 + (y * 27464.7644705)))) / (i + (y * (c + (y * ((y * (y + a)) + b)))));
	elseif (y <= 5.4e-64)
		tmp = t_2 / (i + (y * (c + (y * b))));
	elseif (y <= 2.3e+15)
		tmp = t_2 / (i + (y * (c + (a * (y * y)))));
	elseif (y <= 2.5e+204)
		tmp = 1.0 / ((1.0 / x) + (((a / x) - (z / (x * x))) / y));
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := Block[{t$95$1 = N[(N[(z / y), $MachinePrecision] + N[(x - N[(a / N[(y / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(t + N[(y * N[(230661.510616 + N[(z * N[(y * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[y, -3.7e+63], t$95$1, If[LessEqual[y, -9.5e-47], N[(N[(t + N[(y * N[(230661.510616 + N[(y * 27464.7644705), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(i + N[(y * N[(c + N[(y * N[(N[(y * N[(y + a), $MachinePrecision]), $MachinePrecision] + b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 5.4e-64], N[(t$95$2 / N[(i + N[(y * N[(c + N[(y * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 2.3e+15], N[(t$95$2 / N[(i + N[(y * N[(c + N[(a * N[(y * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 2.5e+204], N[(1.0 / N[(N[(1.0 / x), $MachinePrecision] + N[(N[(N[(a / x), $MachinePrecision] - N[(z / N[(x * x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\
t_2 := t + y \cdot \left(230661.510616 + z \cdot \left(y \cdot y\right)\right)\\
\mathbf{if}\;y \leq -3.7 \cdot 10^{+63}:\\
\;\;\;\;t_1\\

\mathbf{elif}\;y \leq -9.5 \cdot 10^{-47}:\\
\;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot 27464.7644705\right)}{i + y \cdot \left(c + y \cdot \left(y \cdot \left(y + a\right) + b\right)\right)}\\

\mathbf{elif}\;y \leq 5.4 \cdot 10^{-64}:\\
\;\;\;\;\frac{t_2}{i + y \cdot \left(c + y \cdot b\right)}\\

\mathbf{elif}\;y \leq 2.3 \cdot 10^{+15}:\\
\;\;\;\;\frac{t_2}{i + y \cdot \left(c + a \cdot \left(y \cdot y\right)\right)}\\

\mathbf{elif}\;y \leq 2.5 \cdot 10^{+204}:\\
\;\;\;\;\frac{1}{\frac{1}{x} + \frac{\frac{a}{x} - \frac{z}{x \cdot x}}{y}}\\

\mathbf{else}:\\
\;\;\;\;t_1\\


\end{array}
\end{array}
Derivation
  1. Split input into 5 regimes
  2. if y < -3.69999999999999968e63 or 2.50000000000000004e204 < y

    1. Initial program 0.3%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Taylor expanded in y around inf 65.4%

      \[\leadsto \color{blue}{\left(\frac{z}{y} + x\right) - \frac{a \cdot x}{y}} \]
    3. Step-by-step derivation
      1. associate--l+65.4%

        \[\leadsto \color{blue}{\frac{z}{y} + \left(x - \frac{a \cdot x}{y}\right)} \]
      2. associate-/l*74.9%

        \[\leadsto \frac{z}{y} + \left(x - \color{blue}{\frac{a}{\frac{y}{x}}}\right) \]
    4. Simplified74.9%

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

    if -3.69999999999999968e63 < y < -9.4999999999999991e-47

    1. Initial program 74.0%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Taylor expanded in y around 0 49.7%

      \[\leadsto \frac{\left(\color{blue}{27464.7644705 \cdot y} + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    3. Step-by-step derivation
      1. *-commutative49.7%

        \[\leadsto \frac{\left(\color{blue}{y \cdot 27464.7644705} + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Simplified49.7%

      \[\leadsto \frac{\left(\color{blue}{y \cdot 27464.7644705} + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]

    if -9.4999999999999991e-47 < y < 5.39999999999999971e-64

    1. Initial program 99.8%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Taylor expanded in z around inf 98.5%

      \[\leadsto \frac{\left(\color{blue}{{y}^{2} \cdot z} + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    3. Step-by-step derivation
      1. *-commutative98.5%

        \[\leadsto \frac{\left(\color{blue}{z \cdot {y}^{2}} + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
      2. unpow298.5%

        \[\leadsto \frac{\left(z \cdot \color{blue}{\left(y \cdot y\right)} + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Simplified98.5%

      \[\leadsto \frac{\left(\color{blue}{z \cdot \left(y \cdot y\right)} + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    5. Taylor expanded in y around 0 97.8%

      \[\leadsto \frac{\left(z \cdot \left(y \cdot y\right) + 230661.510616\right) \cdot y + t}{\left(\color{blue}{y \cdot b} + c\right) \cdot y + i} \]

    if 5.39999999999999971e-64 < y < 2.3e15

    1. Initial program 93.8%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Taylor expanded in z around inf 77.4%

      \[\leadsto \frac{\left(\color{blue}{{y}^{2} \cdot z} + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    3. Step-by-step derivation
      1. *-commutative77.4%

        \[\leadsto \frac{\left(\color{blue}{z \cdot {y}^{2}} + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
      2. unpow277.4%

        \[\leadsto \frac{\left(z \cdot \color{blue}{\left(y \cdot y\right)} + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Simplified77.4%

      \[\leadsto \frac{\left(\color{blue}{z \cdot \left(y \cdot y\right)} + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    5. Taylor expanded in a around inf 71.6%

      \[\leadsto \frac{\left(z \cdot \left(y \cdot y\right) + 230661.510616\right) \cdot y + t}{\left(\color{blue}{{y}^{2} \cdot a} + c\right) \cdot y + i} \]
    6. Step-by-step derivation
      1. *-commutative71.6%

        \[\leadsto \frac{\left(z \cdot \left(y \cdot y\right) + 230661.510616\right) \cdot y + t}{\left(\color{blue}{a \cdot {y}^{2}} + c\right) \cdot y + i} \]
      2. unpow271.6%

        \[\leadsto \frac{\left(z \cdot \left(y \cdot y\right) + 230661.510616\right) \cdot y + t}{\left(a \cdot \color{blue}{\left(y \cdot y\right)} + c\right) \cdot y + i} \]
    7. Simplified71.6%

      \[\leadsto \frac{\left(z \cdot \left(y \cdot y\right) + 230661.510616\right) \cdot y + t}{\left(\color{blue}{a \cdot \left(y \cdot y\right)} + c\right) \cdot y + i} \]

    if 2.3e15 < y < 2.50000000000000004e204

    1. Initial program 12.3%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Step-by-step derivation
      1. clear-num12.3%

        \[\leadsto \color{blue}{\frac{1}{\frac{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i}{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}}} \]
      2. inv-pow12.3%

        \[\leadsto \color{blue}{{\left(\frac{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i}{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}\right)}^{-1}} \]
    3. Applied egg-rr12.3%

      \[\leadsto \color{blue}{{\left(\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(x, y, z\right), 27464.7644705\right), 230661.510616\right), t\right)}\right)}^{-1}} \]
    4. Step-by-step derivation
      1. unpow-112.3%

        \[\leadsto \color{blue}{\frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(x, y, z\right), 27464.7644705\right), 230661.510616\right), t\right)}}} \]
      2. fma-udef12.3%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{x \cdot y + z}, 27464.7644705\right), 230661.510616\right), t\right)}} \]
      3. *-commutative12.3%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{y \cdot x} + z, 27464.7644705\right), 230661.510616\right), t\right)}} \]
      4. fma-def12.3%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{\mathsf{fma}\left(y, x, z\right)}, 27464.7644705\right), 230661.510616\right), t\right)}} \]
    5. Simplified12.3%

      \[\leadsto \color{blue}{\frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, x, z\right), 27464.7644705\right), 230661.510616\right), t\right)}}} \]
    6. Taylor expanded in y around -inf 45.7%

      \[\leadsto \frac{1}{\color{blue}{\frac{1}{x} + -1 \cdot \frac{-1 \cdot \frac{a}{x} - -1 \cdot \frac{z}{{x}^{2}}}{y}}} \]
    7. Step-by-step derivation
      1. mul-1-neg45.7%

        \[\leadsto \frac{1}{\frac{1}{x} + \color{blue}{\left(-\frac{-1 \cdot \frac{a}{x} - -1 \cdot \frac{z}{{x}^{2}}}{y}\right)}} \]
      2. distribute-lft-out--45.7%

        \[\leadsto \frac{1}{\frac{1}{x} + \left(-\frac{\color{blue}{-1 \cdot \left(\frac{a}{x} - \frac{z}{{x}^{2}}\right)}}{y}\right)} \]
      3. unpow245.7%

        \[\leadsto \frac{1}{\frac{1}{x} + \left(-\frac{-1 \cdot \left(\frac{a}{x} - \frac{z}{\color{blue}{x \cdot x}}\right)}{y}\right)} \]
    8. Simplified45.7%

      \[\leadsto \frac{1}{\color{blue}{\frac{1}{x} + \left(-\frac{-1 \cdot \left(\frac{a}{x} - \frac{z}{x \cdot x}\right)}{y}\right)}} \]
  3. Recombined 5 regimes into one program.
  4. Final simplification78.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -3.7 \cdot 10^{+63}:\\ \;\;\;\;\frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\ \mathbf{elif}\;y \leq -9.5 \cdot 10^{-47}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot 27464.7644705\right)}{i + y \cdot \left(c + y \cdot \left(y \cdot \left(y + a\right) + b\right)\right)}\\ \mathbf{elif}\;y \leq 5.4 \cdot 10^{-64}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + z \cdot \left(y \cdot y\right)\right)}{i + y \cdot \left(c + y \cdot b\right)}\\ \mathbf{elif}\;y \leq 2.3 \cdot 10^{+15}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + z \cdot \left(y \cdot y\right)\right)}{i + y \cdot \left(c + a \cdot \left(y \cdot y\right)\right)}\\ \mathbf{elif}\;y \leq 2.5 \cdot 10^{+204}:\\ \;\;\;\;\frac{1}{\frac{1}{x} + \frac{\frac{a}{x} - \frac{z}{x \cdot x}}{y}}\\ \mathbf{else}:\\ \;\;\;\;\frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\ \end{array} \]

Alternative 6: 80.6% accurate, 1.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -4.2 \cdot 10^{+63} \lor \neg \left(y \leq 7.6 \cdot 10^{+54}\right):\\ \;\;\;\;\frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + z \cdot \left(y \cdot y\right)\right)}{i + y \cdot \left(c + y \cdot \left(y \cdot \left(y + a\right) + b\right)\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (or (<= y -4.2e+63) (not (<= y 7.6e+54)))
   (+ (/ z y) (- x (/ a (/ y x))))
   (/
    (+ t (* y (+ 230661.510616 (* z (* y y)))))
    (+ i (* y (+ c (* y (+ (* y (+ y a)) b))))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if ((y <= -4.2e+63) || !(y <= 7.6e+54)) {
		tmp = (z / y) + (x - (a / (y / x)));
	} else {
		tmp = (t + (y * (230661.510616 + (z * (y * y))))) / (i + (y * (c + (y * ((y * (y + a)) + b)))));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i)
    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), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8) :: tmp
    if ((y <= (-4.2d+63)) .or. (.not. (y <= 7.6d+54))) then
        tmp = (z / y) + (x - (a / (y / x)))
    else
        tmp = (t + (y * (230661.510616d0 + (z * (y * y))))) / (i + (y * (c + (y * ((y * (y + a)) + b)))))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if ((y <= -4.2e+63) || !(y <= 7.6e+54)) {
		tmp = (z / y) + (x - (a / (y / x)));
	} else {
		tmp = (t + (y * (230661.510616 + (z * (y * y))))) / (i + (y * (c + (y * ((y * (y + a)) + b)))));
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	tmp = 0
	if (y <= -4.2e+63) or not (y <= 7.6e+54):
		tmp = (z / y) + (x - (a / (y / x)))
	else:
		tmp = (t + (y * (230661.510616 + (z * (y * y))))) / (i + (y * (c + (y * ((y * (y + a)) + b)))))
	return tmp
function code(x, y, z, t, a, b, c, i)
	tmp = 0.0
	if ((y <= -4.2e+63) || !(y <= 7.6e+54))
		tmp = Float64(Float64(z / y) + Float64(x - Float64(a / Float64(y / x))));
	else
		tmp = Float64(Float64(t + Float64(y * Float64(230661.510616 + Float64(z * Float64(y * y))))) / Float64(i + Float64(y * Float64(c + Float64(y * Float64(Float64(y * Float64(y + a)) + b))))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	tmp = 0.0;
	if ((y <= -4.2e+63) || ~((y <= 7.6e+54)))
		tmp = (z / y) + (x - (a / (y / x)));
	else
		tmp = (t + (y * (230661.510616 + (z * (y * y))))) / (i + (y * (c + (y * ((y * (y + a)) + b)))));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := If[Or[LessEqual[y, -4.2e+63], N[Not[LessEqual[y, 7.6e+54]], $MachinePrecision]], N[(N[(z / y), $MachinePrecision] + N[(x - N[(a / N[(y / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(t + N[(y * N[(230661.510616 + N[(z * N[(y * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(i + N[(y * N[(c + N[(y * N[(N[(y * N[(y + a), $MachinePrecision]), $MachinePrecision] + b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -4.2 \cdot 10^{+63} \lor \neg \left(y \leq 7.6 \cdot 10^{+54}\right):\\
\;\;\;\;\frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\

\mathbf{else}:\\
\;\;\;\;\frac{t + y \cdot \left(230661.510616 + z \cdot \left(y \cdot y\right)\right)}{i + y \cdot \left(c + y \cdot \left(y \cdot \left(y + a\right) + b\right)\right)}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -4.2000000000000004e63 or 7.6000000000000005e54 < y

    1. Initial program 1.3%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Taylor expanded in y around inf 57.7%

      \[\leadsto \color{blue}{\left(\frac{z}{y} + x\right) - \frac{a \cdot x}{y}} \]
    3. Step-by-step derivation
      1. associate--l+57.7%

        \[\leadsto \color{blue}{\frac{z}{y} + \left(x - \frac{a \cdot x}{y}\right)} \]
      2. associate-/l*66.0%

        \[\leadsto \frac{z}{y} + \left(x - \color{blue}{\frac{a}{\frac{y}{x}}}\right) \]
    4. Simplified66.0%

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

    if -4.2000000000000004e63 < y < 7.6000000000000005e54

    1. Initial program 92.0%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Taylor expanded in z around inf 84.8%

      \[\leadsto \frac{\left(\color{blue}{{y}^{2} \cdot z} + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    3. Step-by-step derivation
      1. *-commutative84.8%

        \[\leadsto \frac{\left(\color{blue}{z \cdot {y}^{2}} + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
      2. unpow284.8%

        \[\leadsto \frac{\left(z \cdot \color{blue}{\left(y \cdot y\right)} + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Simplified84.8%

      \[\leadsto \frac{\left(\color{blue}{z \cdot \left(y \cdot y\right)} + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification78.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -4.2 \cdot 10^{+63} \lor \neg \left(y \leq 7.6 \cdot 10^{+54}\right):\\ \;\;\;\;\frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + z \cdot \left(y \cdot y\right)\right)}{i + y \cdot \left(c + y \cdot \left(y \cdot \left(y + a\right) + b\right)\right)}\\ \end{array} \]

Alternative 7: 72.4% accurate, 1.2× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{1}{\frac{1}{x} + \frac{\frac{a}{x} - \frac{z}{x \cdot x}}{y}}\\ \mathbf{if}\;y \leq -1.75 \cdot 10^{+47}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;y \leq 2.4 \cdot 10^{+15}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + z \cdot \left(y \cdot y\right)\right)}{i + y \cdot \left(c + a \cdot \left(y \cdot y\right)\right)}\\ \mathbf{elif}\;y \leq 2.32 \cdot 10^{+204}:\\ \;\;\;\;t_1\\ \mathbf{else}:\\ \;\;\;\;\frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (let* ((t_1 (/ 1.0 (+ (/ 1.0 x) (/ (- (/ a x) (/ z (* x x))) y)))))
   (if (<= y -1.75e+47)
     t_1
     (if (<= y 2.4e+15)
       (/
        (+ t (* y (+ 230661.510616 (* z (* y y)))))
        (+ i (* y (+ c (* a (* y y))))))
       (if (<= y 2.32e+204) t_1 (+ (/ z y) (- x (/ a (/ y x)))))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double t_1 = 1.0 / ((1.0 / x) + (((a / x) - (z / (x * x))) / y));
	double tmp;
	if (y <= -1.75e+47) {
		tmp = t_1;
	} else if (y <= 2.4e+15) {
		tmp = (t + (y * (230661.510616 + (z * (y * y))))) / (i + (y * (c + (a * (y * y)))));
	} else if (y <= 2.32e+204) {
		tmp = t_1;
	} else {
		tmp = (z / y) + (x - (a / (y / x)));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i)
    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), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8) :: t_1
    real(8) :: tmp
    t_1 = 1.0d0 / ((1.0d0 / x) + (((a / x) - (z / (x * x))) / y))
    if (y <= (-1.75d+47)) then
        tmp = t_1
    else if (y <= 2.4d+15) then
        tmp = (t + (y * (230661.510616d0 + (z * (y * y))))) / (i + (y * (c + (a * (y * y)))))
    else if (y <= 2.32d+204) then
        tmp = t_1
    else
        tmp = (z / y) + (x - (a / (y / x)))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double t_1 = 1.0 / ((1.0 / x) + (((a / x) - (z / (x * x))) / y));
	double tmp;
	if (y <= -1.75e+47) {
		tmp = t_1;
	} else if (y <= 2.4e+15) {
		tmp = (t + (y * (230661.510616 + (z * (y * y))))) / (i + (y * (c + (a * (y * y)))));
	} else if (y <= 2.32e+204) {
		tmp = t_1;
	} else {
		tmp = (z / y) + (x - (a / (y / x)));
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	t_1 = 1.0 / ((1.0 / x) + (((a / x) - (z / (x * x))) / y))
	tmp = 0
	if y <= -1.75e+47:
		tmp = t_1
	elif y <= 2.4e+15:
		tmp = (t + (y * (230661.510616 + (z * (y * y))))) / (i + (y * (c + (a * (y * y)))))
	elif y <= 2.32e+204:
		tmp = t_1
	else:
		tmp = (z / y) + (x - (a / (y / x)))
	return tmp
function code(x, y, z, t, a, b, c, i)
	t_1 = Float64(1.0 / Float64(Float64(1.0 / x) + Float64(Float64(Float64(a / x) - Float64(z / Float64(x * x))) / y)))
	tmp = 0.0
	if (y <= -1.75e+47)
		tmp = t_1;
	elseif (y <= 2.4e+15)
		tmp = Float64(Float64(t + Float64(y * Float64(230661.510616 + Float64(z * Float64(y * y))))) / Float64(i + Float64(y * Float64(c + Float64(a * Float64(y * y))))));
	elseif (y <= 2.32e+204)
		tmp = t_1;
	else
		tmp = Float64(Float64(z / y) + Float64(x - Float64(a / Float64(y / x))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	t_1 = 1.0 / ((1.0 / x) + (((a / x) - (z / (x * x))) / y));
	tmp = 0.0;
	if (y <= -1.75e+47)
		tmp = t_1;
	elseif (y <= 2.4e+15)
		tmp = (t + (y * (230661.510616 + (z * (y * y))))) / (i + (y * (c + (a * (y * y)))));
	elseif (y <= 2.32e+204)
		tmp = t_1;
	else
		tmp = (z / y) + (x - (a / (y / x)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := Block[{t$95$1 = N[(1.0 / N[(N[(1.0 / x), $MachinePrecision] + N[(N[(N[(a / x), $MachinePrecision] - N[(z / N[(x * x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[y, -1.75e+47], t$95$1, If[LessEqual[y, 2.4e+15], N[(N[(t + N[(y * N[(230661.510616 + N[(z * N[(y * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(i + N[(y * N[(c + N[(a * N[(y * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 2.32e+204], t$95$1, N[(N[(z / y), $MachinePrecision] + N[(x - N[(a / N[(y / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \frac{1}{\frac{1}{x} + \frac{\frac{a}{x} - \frac{z}{x \cdot x}}{y}}\\
\mathbf{if}\;y \leq -1.75 \cdot 10^{+47}:\\
\;\;\;\;t_1\\

\mathbf{elif}\;y \leq 2.4 \cdot 10^{+15}:\\
\;\;\;\;\frac{t + y \cdot \left(230661.510616 + z \cdot \left(y \cdot y\right)\right)}{i + y \cdot \left(c + a \cdot \left(y \cdot y\right)\right)}\\

\mathbf{elif}\;y \leq 2.32 \cdot 10^{+204}:\\
\;\;\;\;t_1\\

\mathbf{else}:\\
\;\;\;\;\frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -1.75000000000000008e47 or 2.4e15 < y < 2.32000000000000009e204

    1. Initial program 6.5%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Step-by-step derivation
      1. clear-num6.5%

        \[\leadsto \color{blue}{\frac{1}{\frac{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i}{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}}} \]
      2. inv-pow6.5%

        \[\leadsto \color{blue}{{\left(\frac{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i}{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}\right)}^{-1}} \]
    3. Applied egg-rr6.5%

      \[\leadsto \color{blue}{{\left(\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(x, y, z\right), 27464.7644705\right), 230661.510616\right), t\right)}\right)}^{-1}} \]
    4. Step-by-step derivation
      1. unpow-16.5%

        \[\leadsto \color{blue}{\frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(x, y, z\right), 27464.7644705\right), 230661.510616\right), t\right)}}} \]
      2. fma-udef6.5%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{x \cdot y + z}, 27464.7644705\right), 230661.510616\right), t\right)}} \]
      3. *-commutative6.5%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{y \cdot x} + z, 27464.7644705\right), 230661.510616\right), t\right)}} \]
      4. fma-def6.5%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{\mathsf{fma}\left(y, x, z\right)}, 27464.7644705\right), 230661.510616\right), t\right)}} \]
    5. Simplified6.5%

      \[\leadsto \color{blue}{\frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, x, z\right), 27464.7644705\right), 230661.510616\right), t\right)}}} \]
    6. Taylor expanded in y around -inf 55.3%

      \[\leadsto \frac{1}{\color{blue}{\frac{1}{x} + -1 \cdot \frac{-1 \cdot \frac{a}{x} - -1 \cdot \frac{z}{{x}^{2}}}{y}}} \]
    7. Step-by-step derivation
      1. mul-1-neg55.3%

        \[\leadsto \frac{1}{\frac{1}{x} + \color{blue}{\left(-\frac{-1 \cdot \frac{a}{x} - -1 \cdot \frac{z}{{x}^{2}}}{y}\right)}} \]
      2. distribute-lft-out--55.3%

        \[\leadsto \frac{1}{\frac{1}{x} + \left(-\frac{\color{blue}{-1 \cdot \left(\frac{a}{x} - \frac{z}{{x}^{2}}\right)}}{y}\right)} \]
      3. unpow255.3%

        \[\leadsto \frac{1}{\frac{1}{x} + \left(-\frac{-1 \cdot \left(\frac{a}{x} - \frac{z}{\color{blue}{x \cdot x}}\right)}{y}\right)} \]
    8. Simplified55.3%

      \[\leadsto \frac{1}{\color{blue}{\frac{1}{x} + \left(-\frac{-1 \cdot \left(\frac{a}{x} - \frac{z}{x \cdot x}\right)}{y}\right)}} \]

    if -1.75000000000000008e47 < y < 2.4e15

    1. Initial program 97.7%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Taylor expanded in z around inf 90.5%

      \[\leadsto \frac{\left(\color{blue}{{y}^{2} \cdot z} + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    3. Step-by-step derivation
      1. *-commutative90.5%

        \[\leadsto \frac{\left(\color{blue}{z \cdot {y}^{2}} + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
      2. unpow290.5%

        \[\leadsto \frac{\left(z \cdot \color{blue}{\left(y \cdot y\right)} + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Simplified90.5%

      \[\leadsto \frac{\left(\color{blue}{z \cdot \left(y \cdot y\right)} + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    5. Taylor expanded in a around inf 85.9%

      \[\leadsto \frac{\left(z \cdot \left(y \cdot y\right) + 230661.510616\right) \cdot y + t}{\left(\color{blue}{{y}^{2} \cdot a} + c\right) \cdot y + i} \]
    6. Step-by-step derivation
      1. *-commutative85.9%

        \[\leadsto \frac{\left(z \cdot \left(y \cdot y\right) + 230661.510616\right) \cdot y + t}{\left(\color{blue}{a \cdot {y}^{2}} + c\right) \cdot y + i} \]
      2. unpow285.9%

        \[\leadsto \frac{\left(z \cdot \left(y \cdot y\right) + 230661.510616\right) \cdot y + t}{\left(a \cdot \color{blue}{\left(y \cdot y\right)} + c\right) \cdot y + i} \]
    7. Simplified85.9%

      \[\leadsto \frac{\left(z \cdot \left(y \cdot y\right) + 230661.510616\right) \cdot y + t}{\left(\color{blue}{a \cdot \left(y \cdot y\right)} + c\right) \cdot y + i} \]

    if 2.32000000000000009e204 < y

    1. Initial program 0.0%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Taylor expanded in y around inf 82.3%

      \[\leadsto \color{blue}{\left(\frac{z}{y} + x\right) - \frac{a \cdot x}{y}} \]
    3. Step-by-step derivation
      1. associate--l+82.3%

        \[\leadsto \color{blue}{\frac{z}{y} + \left(x - \frac{a \cdot x}{y}\right)} \]
      2. associate-/l*89.4%

        \[\leadsto \frac{z}{y} + \left(x - \color{blue}{\frac{a}{\frac{y}{x}}}\right) \]
    4. Simplified89.4%

      \[\leadsto \color{blue}{\frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification76.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1.75 \cdot 10^{+47}:\\ \;\;\;\;\frac{1}{\frac{1}{x} + \frac{\frac{a}{x} - \frac{z}{x \cdot x}}{y}}\\ \mathbf{elif}\;y \leq 2.4 \cdot 10^{+15}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + z \cdot \left(y \cdot y\right)\right)}{i + y \cdot \left(c + a \cdot \left(y \cdot y\right)\right)}\\ \mathbf{elif}\;y \leq 2.32 \cdot 10^{+204}:\\ \;\;\;\;\frac{1}{\frac{1}{x} + \frac{\frac{a}{x} - \frac{z}{x \cdot x}}{y}}\\ \mathbf{else}:\\ \;\;\;\;\frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\ \end{array} \]

Alternative 8: 68.0% accurate, 1.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{t}{i + y \cdot \left(c + y \cdot \left(y \cdot \left(y + a\right) + b\right)\right)}\\ t_2 := \frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\ \mathbf{if}\;y \leq -3 \cdot 10^{+63}:\\ \;\;\;\;t_2\\ \mathbf{elif}\;y \leq 9.6 \cdot 10^{-206}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;y \leq 1.2 \cdot 10^{-125}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}{i}\\ \mathbf{elif}\;y \leq 6.2 \cdot 10^{+56}:\\ \;\;\;\;t_1\\ \mathbf{else}:\\ \;\;\;\;t_2\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (let* ((t_1 (/ t (+ i (* y (+ c (* y (+ (* y (+ y a)) b)))))))
        (t_2 (+ (/ z y) (- x (/ a (/ y x))))))
   (if (<= y -3e+63)
     t_2
     (if (<= y 9.6e-206)
       t_1
       (if (<= y 1.2e-125)
         (/ (+ t (* y (+ 230661.510616 (* y (+ 27464.7644705 (* y z)))))) i)
         (if (<= y 6.2e+56) t_1 t_2))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double t_1 = t / (i + (y * (c + (y * ((y * (y + a)) + b)))));
	double t_2 = (z / y) + (x - (a / (y / x)));
	double tmp;
	if (y <= -3e+63) {
		tmp = t_2;
	} else if (y <= 9.6e-206) {
		tmp = t_1;
	} else if (y <= 1.2e-125) {
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / i;
	} else if (y <= 6.2e+56) {
		tmp = t_1;
	} else {
		tmp = t_2;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i)
    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), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8) :: t_1
    real(8) :: t_2
    real(8) :: tmp
    t_1 = t / (i + (y * (c + (y * ((y * (y + a)) + b)))))
    t_2 = (z / y) + (x - (a / (y / x)))
    if (y <= (-3d+63)) then
        tmp = t_2
    else if (y <= 9.6d-206) then
        tmp = t_1
    else if (y <= 1.2d-125) then
        tmp = (t + (y * (230661.510616d0 + (y * (27464.7644705d0 + (y * z)))))) / i
    else if (y <= 6.2d+56) then
        tmp = t_1
    else
        tmp = t_2
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double t_1 = t / (i + (y * (c + (y * ((y * (y + a)) + b)))));
	double t_2 = (z / y) + (x - (a / (y / x)));
	double tmp;
	if (y <= -3e+63) {
		tmp = t_2;
	} else if (y <= 9.6e-206) {
		tmp = t_1;
	} else if (y <= 1.2e-125) {
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / i;
	} else if (y <= 6.2e+56) {
		tmp = t_1;
	} else {
		tmp = t_2;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	t_1 = t / (i + (y * (c + (y * ((y * (y + a)) + b)))))
	t_2 = (z / y) + (x - (a / (y / x)))
	tmp = 0
	if y <= -3e+63:
		tmp = t_2
	elif y <= 9.6e-206:
		tmp = t_1
	elif y <= 1.2e-125:
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / i
	elif y <= 6.2e+56:
		tmp = t_1
	else:
		tmp = t_2
	return tmp
function code(x, y, z, t, a, b, c, i)
	t_1 = Float64(t / Float64(i + Float64(y * Float64(c + Float64(y * Float64(Float64(y * Float64(y + a)) + b))))))
	t_2 = Float64(Float64(z / y) + Float64(x - Float64(a / Float64(y / x))))
	tmp = 0.0
	if (y <= -3e+63)
		tmp = t_2;
	elseif (y <= 9.6e-206)
		tmp = t_1;
	elseif (y <= 1.2e-125)
		tmp = Float64(Float64(t + Float64(y * Float64(230661.510616 + Float64(y * Float64(27464.7644705 + Float64(y * z)))))) / i);
	elseif (y <= 6.2e+56)
		tmp = t_1;
	else
		tmp = t_2;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	t_1 = t / (i + (y * (c + (y * ((y * (y + a)) + b)))));
	t_2 = (z / y) + (x - (a / (y / x)));
	tmp = 0.0;
	if (y <= -3e+63)
		tmp = t_2;
	elseif (y <= 9.6e-206)
		tmp = t_1;
	elseif (y <= 1.2e-125)
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / i;
	elseif (y <= 6.2e+56)
		tmp = t_1;
	else
		tmp = t_2;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := Block[{t$95$1 = N[(t / N[(i + N[(y * N[(c + N[(y * N[(N[(y * N[(y + a), $MachinePrecision]), $MachinePrecision] + b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(N[(z / y), $MachinePrecision] + N[(x - N[(a / N[(y / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[y, -3e+63], t$95$2, If[LessEqual[y, 9.6e-206], t$95$1, If[LessEqual[y, 1.2e-125], N[(N[(t + N[(y * N[(230661.510616 + N[(y * N[(27464.7644705 + N[(y * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / i), $MachinePrecision], If[LessEqual[y, 6.2e+56], t$95$1, t$95$2]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \frac{t}{i + y \cdot \left(c + y \cdot \left(y \cdot \left(y + a\right) + b\right)\right)}\\
t_2 := \frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\
\mathbf{if}\;y \leq -3 \cdot 10^{+63}:\\
\;\;\;\;t_2\\

\mathbf{elif}\;y \leq 9.6 \cdot 10^{-206}:\\
\;\;\;\;t_1\\

\mathbf{elif}\;y \leq 1.2 \cdot 10^{-125}:\\
\;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}{i}\\

\mathbf{elif}\;y \leq 6.2 \cdot 10^{+56}:\\
\;\;\;\;t_1\\

\mathbf{else}:\\
\;\;\;\;t_2\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -2.99999999999999999e63 or 6.20000000000000009e56 < y

    1. Initial program 1.3%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Taylor expanded in y around inf 58.9%

      \[\leadsto \color{blue}{\left(\frac{z}{y} + x\right) - \frac{a \cdot x}{y}} \]
    3. Step-by-step derivation
      1. associate--l+58.9%

        \[\leadsto \color{blue}{\frac{z}{y} + \left(x - \frac{a \cdot x}{y}\right)} \]
      2. associate-/l*67.5%

        \[\leadsto \frac{z}{y} + \left(x - \color{blue}{\frac{a}{\frac{y}{x}}}\right) \]
    4. Simplified67.5%

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

    if -2.99999999999999999e63 < y < 9.5999999999999998e-206 or 1.2000000000000001e-125 < y < 6.20000000000000009e56

    1. Initial program 89.7%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Taylor expanded in t around inf 65.3%

      \[\leadsto \color{blue}{\frac{t}{y \cdot \left(c + y \cdot \left(\left(y + a\right) \cdot y + b\right)\right) + i}} \]

    if 9.5999999999999998e-206 < y < 1.2000000000000001e-125

    1. Initial program 99.8%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Step-by-step derivation
      1. clear-num99.5%

        \[\leadsto \color{blue}{\frac{1}{\frac{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i}{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}}} \]
      2. inv-pow99.5%

        \[\leadsto \color{blue}{{\left(\frac{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i}{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}\right)}^{-1}} \]
    3. Applied egg-rr99.5%

      \[\leadsto \color{blue}{{\left(\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(x, y, z\right), 27464.7644705\right), 230661.510616\right), t\right)}\right)}^{-1}} \]
    4. Step-by-step derivation
      1. unpow-199.5%

        \[\leadsto \color{blue}{\frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(x, y, z\right), 27464.7644705\right), 230661.510616\right), t\right)}}} \]
      2. fma-udef99.5%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{x \cdot y + z}, 27464.7644705\right), 230661.510616\right), t\right)}} \]
      3. *-commutative99.5%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{y \cdot x} + z, 27464.7644705\right), 230661.510616\right), t\right)}} \]
      4. fma-def99.5%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{\mathsf{fma}\left(y, x, z\right)}, 27464.7644705\right), 230661.510616\right), t\right)}} \]
    5. Simplified99.5%

      \[\leadsto \color{blue}{\frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, x, z\right), 27464.7644705\right), 230661.510616\right), t\right)}}} \]
    6. Taylor expanded in i around inf 84.4%

      \[\leadsto \frac{1}{\color{blue}{\frac{i}{y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + \left(y \cdot x + z\right) \cdot y\right)\right) + t}}} \]
    7. Taylor expanded in x around 0 84.6%

      \[\leadsto \color{blue}{\frac{y \cdot \left(230661.510616 + y \cdot \left(y \cdot z + 27464.7644705\right)\right) + t}{i}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification67.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -3 \cdot 10^{+63}:\\ \;\;\;\;\frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\ \mathbf{elif}\;y \leq 9.6 \cdot 10^{-206}:\\ \;\;\;\;\frac{t}{i + y \cdot \left(c + y \cdot \left(y \cdot \left(y + a\right) + b\right)\right)}\\ \mathbf{elif}\;y \leq 1.2 \cdot 10^{-125}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}{i}\\ \mathbf{elif}\;y \leq 6.2 \cdot 10^{+56}:\\ \;\;\;\;\frac{t}{i + y \cdot \left(c + y \cdot \left(y \cdot \left(y + a\right) + b\right)\right)}\\ \mathbf{else}:\\ \;\;\;\;\frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\ \end{array} \]

Alternative 9: 76.0% accurate, 1.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -1.02 \cdot 10^{+65} \lor \neg \left(y \leq 7.7 \cdot 10^{+56}\right):\\ \;\;\;\;\frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t + y \cdot 230661.510616}{i + y \cdot \left(c + y \cdot \left(y \cdot \left(y + a\right) + b\right)\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (or (<= y -1.02e+65) (not (<= y 7.7e+56)))
   (+ (/ z y) (- x (/ a (/ y x))))
   (/ (+ t (* y 230661.510616)) (+ i (* y (+ c (* y (+ (* y (+ y a)) b))))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if ((y <= -1.02e+65) || !(y <= 7.7e+56)) {
		tmp = (z / y) + (x - (a / (y / x)));
	} else {
		tmp = (t + (y * 230661.510616)) / (i + (y * (c + (y * ((y * (y + a)) + b)))));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i)
    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), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8) :: tmp
    if ((y <= (-1.02d+65)) .or. (.not. (y <= 7.7d+56))) then
        tmp = (z / y) + (x - (a / (y / x)))
    else
        tmp = (t + (y * 230661.510616d0)) / (i + (y * (c + (y * ((y * (y + a)) + b)))))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if ((y <= -1.02e+65) || !(y <= 7.7e+56)) {
		tmp = (z / y) + (x - (a / (y / x)));
	} else {
		tmp = (t + (y * 230661.510616)) / (i + (y * (c + (y * ((y * (y + a)) + b)))));
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	tmp = 0
	if (y <= -1.02e+65) or not (y <= 7.7e+56):
		tmp = (z / y) + (x - (a / (y / x)))
	else:
		tmp = (t + (y * 230661.510616)) / (i + (y * (c + (y * ((y * (y + a)) + b)))))
	return tmp
function code(x, y, z, t, a, b, c, i)
	tmp = 0.0
	if ((y <= -1.02e+65) || !(y <= 7.7e+56))
		tmp = Float64(Float64(z / y) + Float64(x - Float64(a / Float64(y / x))));
	else
		tmp = Float64(Float64(t + Float64(y * 230661.510616)) / Float64(i + Float64(y * Float64(c + Float64(y * Float64(Float64(y * Float64(y + a)) + b))))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	tmp = 0.0;
	if ((y <= -1.02e+65) || ~((y <= 7.7e+56)))
		tmp = (z / y) + (x - (a / (y / x)));
	else
		tmp = (t + (y * 230661.510616)) / (i + (y * (c + (y * ((y * (y + a)) + b)))));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := If[Or[LessEqual[y, -1.02e+65], N[Not[LessEqual[y, 7.7e+56]], $MachinePrecision]], N[(N[(z / y), $MachinePrecision] + N[(x - N[(a / N[(y / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(t + N[(y * 230661.510616), $MachinePrecision]), $MachinePrecision] / N[(i + N[(y * N[(c + N[(y * N[(N[(y * N[(y + a), $MachinePrecision]), $MachinePrecision] + b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -1.02 \cdot 10^{+65} \lor \neg \left(y \leq 7.7 \cdot 10^{+56}\right):\\
\;\;\;\;\frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\

\mathbf{else}:\\
\;\;\;\;\frac{t + y \cdot 230661.510616}{i + y \cdot \left(c + y \cdot \left(y \cdot \left(y + a\right) + b\right)\right)}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -1.02000000000000005e65 or 7.6999999999999999e56 < y

    1. Initial program 1.3%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Taylor expanded in y around inf 58.9%

      \[\leadsto \color{blue}{\left(\frac{z}{y} + x\right) - \frac{a \cdot x}{y}} \]
    3. Step-by-step derivation
      1. associate--l+58.9%

        \[\leadsto \color{blue}{\frac{z}{y} + \left(x - \frac{a \cdot x}{y}\right)} \]
      2. associate-/l*67.5%

        \[\leadsto \frac{z}{y} + \left(x - \color{blue}{\frac{a}{\frac{y}{x}}}\right) \]
    4. Simplified67.5%

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

    if -1.02000000000000005e65 < y < 7.6999999999999999e56

    1. Initial program 90.9%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Taylor expanded in y around 0 75.2%

      \[\leadsto \frac{\color{blue}{230661.510616 \cdot y} + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    3. Step-by-step derivation
      1. *-commutative75.2%

        \[\leadsto \frac{\color{blue}{y \cdot 230661.510616} + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Simplified75.2%

      \[\leadsto \frac{\color{blue}{y \cdot 230661.510616} + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification72.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1.02 \cdot 10^{+65} \lor \neg \left(y \leq 7.7 \cdot 10^{+56}\right):\\ \;\;\;\;\frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t + y \cdot 230661.510616}{i + y \cdot \left(c + y \cdot \left(y \cdot \left(y + a\right) + b\right)\right)}\\ \end{array} \]

Alternative 10: 75.1% accurate, 1.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -6.6 \cdot 10^{+23}:\\ \;\;\;\;\frac{1}{\frac{1}{x} + \frac{\frac{a}{x} - \frac{z}{x \cdot x}}{y}}\\ \mathbf{elif}\;y \leq 1.9 \cdot 10^{+52}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + z \cdot \left(y \cdot y\right)\right)}{i + y \cdot \left(c + y \cdot b\right)}\\ \mathbf{else}:\\ \;\;\;\;\frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (<= y -6.6e+23)
   (/ 1.0 (+ (/ 1.0 x) (/ (- (/ a x) (/ z (* x x))) y)))
   (if (<= y 1.9e+52)
     (/ (+ t (* y (+ 230661.510616 (* z (* y y))))) (+ i (* y (+ c (* y b)))))
     (+ (/ z y) (- x (/ a (/ y x)))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if (y <= -6.6e+23) {
		tmp = 1.0 / ((1.0 / x) + (((a / x) - (z / (x * x))) / y));
	} else if (y <= 1.9e+52) {
		tmp = (t + (y * (230661.510616 + (z * (y * y))))) / (i + (y * (c + (y * b))));
	} else {
		tmp = (z / y) + (x - (a / (y / x)));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i)
    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), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8) :: tmp
    if (y <= (-6.6d+23)) then
        tmp = 1.0d0 / ((1.0d0 / x) + (((a / x) - (z / (x * x))) / y))
    else if (y <= 1.9d+52) then
        tmp = (t + (y * (230661.510616d0 + (z * (y * y))))) / (i + (y * (c + (y * b))))
    else
        tmp = (z / y) + (x - (a / (y / x)))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if (y <= -6.6e+23) {
		tmp = 1.0 / ((1.0 / x) + (((a / x) - (z / (x * x))) / y));
	} else if (y <= 1.9e+52) {
		tmp = (t + (y * (230661.510616 + (z * (y * y))))) / (i + (y * (c + (y * b))));
	} else {
		tmp = (z / y) + (x - (a / (y / x)));
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	tmp = 0
	if y <= -6.6e+23:
		tmp = 1.0 / ((1.0 / x) + (((a / x) - (z / (x * x))) / y))
	elif y <= 1.9e+52:
		tmp = (t + (y * (230661.510616 + (z * (y * y))))) / (i + (y * (c + (y * b))))
	else:
		tmp = (z / y) + (x - (a / (y / x)))
	return tmp
function code(x, y, z, t, a, b, c, i)
	tmp = 0.0
	if (y <= -6.6e+23)
		tmp = Float64(1.0 / Float64(Float64(1.0 / x) + Float64(Float64(Float64(a / x) - Float64(z / Float64(x * x))) / y)));
	elseif (y <= 1.9e+52)
		tmp = Float64(Float64(t + Float64(y * Float64(230661.510616 + Float64(z * Float64(y * y))))) / Float64(i + Float64(y * Float64(c + Float64(y * b)))));
	else
		tmp = Float64(Float64(z / y) + Float64(x - Float64(a / Float64(y / x))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	tmp = 0.0;
	if (y <= -6.6e+23)
		tmp = 1.0 / ((1.0 / x) + (((a / x) - (z / (x * x))) / y));
	elseif (y <= 1.9e+52)
		tmp = (t + (y * (230661.510616 + (z * (y * y))))) / (i + (y * (c + (y * b))));
	else
		tmp = (z / y) + (x - (a / (y / x)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := If[LessEqual[y, -6.6e+23], N[(1.0 / N[(N[(1.0 / x), $MachinePrecision] + N[(N[(N[(a / x), $MachinePrecision] - N[(z / N[(x * x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 1.9e+52], N[(N[(t + N[(y * N[(230661.510616 + N[(z * N[(y * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(i + N[(y * N[(c + N[(y * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(z / y), $MachinePrecision] + N[(x - N[(a / N[(y / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -6.6 \cdot 10^{+23}:\\
\;\;\;\;\frac{1}{\frac{1}{x} + \frac{\frac{a}{x} - \frac{z}{x \cdot x}}{y}}\\

\mathbf{elif}\;y \leq 1.9 \cdot 10^{+52}:\\
\;\;\;\;\frac{t + y \cdot \left(230661.510616 + z \cdot \left(y \cdot y\right)\right)}{i + y \cdot \left(c + y \cdot b\right)}\\

\mathbf{else}:\\
\;\;\;\;\frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -6.60000000000000059e23

    1. Initial program 7.9%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Step-by-step derivation
      1. clear-num7.9%

        \[\leadsto \color{blue}{\frac{1}{\frac{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i}{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}}} \]
      2. inv-pow7.9%

        \[\leadsto \color{blue}{{\left(\frac{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i}{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}\right)}^{-1}} \]
    3. Applied egg-rr7.9%

      \[\leadsto \color{blue}{{\left(\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(x, y, z\right), 27464.7644705\right), 230661.510616\right), t\right)}\right)}^{-1}} \]
    4. Step-by-step derivation
      1. unpow-17.9%

        \[\leadsto \color{blue}{\frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(x, y, z\right), 27464.7644705\right), 230661.510616\right), t\right)}}} \]
      2. fma-udef7.9%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{x \cdot y + z}, 27464.7644705\right), 230661.510616\right), t\right)}} \]
      3. *-commutative7.9%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{y \cdot x} + z, 27464.7644705\right), 230661.510616\right), t\right)}} \]
      4. fma-def7.9%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{\mathsf{fma}\left(y, x, z\right)}, 27464.7644705\right), 230661.510616\right), t\right)}} \]
    5. Simplified7.9%

      \[\leadsto \color{blue}{\frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, x, z\right), 27464.7644705\right), 230661.510616\right), t\right)}}} \]
    6. Taylor expanded in y around -inf 58.2%

      \[\leadsto \frac{1}{\color{blue}{\frac{1}{x} + -1 \cdot \frac{-1 \cdot \frac{a}{x} - -1 \cdot \frac{z}{{x}^{2}}}{y}}} \]
    7. Step-by-step derivation
      1. mul-1-neg58.2%

        \[\leadsto \frac{1}{\frac{1}{x} + \color{blue}{\left(-\frac{-1 \cdot \frac{a}{x} - -1 \cdot \frac{z}{{x}^{2}}}{y}\right)}} \]
      2. distribute-lft-out--58.2%

        \[\leadsto \frac{1}{\frac{1}{x} + \left(-\frac{\color{blue}{-1 \cdot \left(\frac{a}{x} - \frac{z}{{x}^{2}}\right)}}{y}\right)} \]
      3. unpow258.2%

        \[\leadsto \frac{1}{\frac{1}{x} + \left(-\frac{-1 \cdot \left(\frac{a}{x} - \frac{z}{\color{blue}{x \cdot x}}\right)}{y}\right)} \]
    8. Simplified58.2%

      \[\leadsto \frac{1}{\color{blue}{\frac{1}{x} + \left(-\frac{-1 \cdot \left(\frac{a}{x} - \frac{z}{x \cdot x}\right)}{y}\right)}} \]

    if -6.60000000000000059e23 < y < 1.9e52

    1. Initial program 95.3%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Taylor expanded in z around inf 88.8%

      \[\leadsto \frac{\left(\color{blue}{{y}^{2} \cdot z} + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    3. Step-by-step derivation
      1. *-commutative88.8%

        \[\leadsto \frac{\left(\color{blue}{z \cdot {y}^{2}} + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
      2. unpow288.8%

        \[\leadsto \frac{\left(z \cdot \color{blue}{\left(y \cdot y\right)} + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Simplified88.8%

      \[\leadsto \frac{\left(\color{blue}{z \cdot \left(y \cdot y\right)} + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    5. Taylor expanded in y around 0 83.5%

      \[\leadsto \frac{\left(z \cdot \left(y \cdot y\right) + 230661.510616\right) \cdot y + t}{\left(\color{blue}{y \cdot b} + c\right) \cdot y + i} \]

    if 1.9e52 < y

    1. Initial program 2.1%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Taylor expanded in y around inf 58.2%

      \[\leadsto \color{blue}{\left(\frac{z}{y} + x\right) - \frac{a \cdot x}{y}} \]
    3. Step-by-step derivation
      1. associate--l+58.2%

        \[\leadsto \color{blue}{\frac{z}{y} + \left(x - \frac{a \cdot x}{y}\right)} \]
      2. associate-/l*64.3%

        \[\leadsto \frac{z}{y} + \left(x - \color{blue}{\frac{a}{\frac{y}{x}}}\right) \]
    4. Simplified64.3%

      \[\leadsto \color{blue}{\frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification74.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -6.6 \cdot 10^{+23}:\\ \;\;\;\;\frac{1}{\frac{1}{x} + \frac{\frac{a}{x} - \frac{z}{x \cdot x}}{y}}\\ \mathbf{elif}\;y \leq 1.9 \cdot 10^{+52}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + z \cdot \left(y \cdot y\right)\right)}{i + y \cdot \left(c + y \cdot b\right)}\\ \mathbf{else}:\\ \;\;\;\;\frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\ \end{array} \]

Alternative 11: 64.2% accurate, 1.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{t}{i + y \cdot c}\\ t_2 := \frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\ \mathbf{if}\;y \leq -4.9 \cdot 10^{+55}:\\ \;\;\;\;t_2\\ \mathbf{elif}\;y \leq 5.4 \cdot 10^{-211}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;y \leq 1.9 \cdot 10^{-117}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}{i}\\ \mathbf{elif}\;y \leq 9.5 \cdot 10^{+57}:\\ \;\;\;\;t_1\\ \mathbf{else}:\\ \;\;\;\;t_2\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (let* ((t_1 (/ t (+ i (* y c)))) (t_2 (+ (/ z y) (- x (/ a (/ y x))))))
   (if (<= y -4.9e+55)
     t_2
     (if (<= y 5.4e-211)
       t_1
       (if (<= y 1.9e-117)
         (/ (+ t (* y (+ 230661.510616 (* y (+ 27464.7644705 (* y z)))))) i)
         (if (<= y 9.5e+57) t_1 t_2))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double t_1 = t / (i + (y * c));
	double t_2 = (z / y) + (x - (a / (y / x)));
	double tmp;
	if (y <= -4.9e+55) {
		tmp = t_2;
	} else if (y <= 5.4e-211) {
		tmp = t_1;
	} else if (y <= 1.9e-117) {
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / i;
	} else if (y <= 9.5e+57) {
		tmp = t_1;
	} else {
		tmp = t_2;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i)
    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), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8) :: t_1
    real(8) :: t_2
    real(8) :: tmp
    t_1 = t / (i + (y * c))
    t_2 = (z / y) + (x - (a / (y / x)))
    if (y <= (-4.9d+55)) then
        tmp = t_2
    else if (y <= 5.4d-211) then
        tmp = t_1
    else if (y <= 1.9d-117) then
        tmp = (t + (y * (230661.510616d0 + (y * (27464.7644705d0 + (y * z)))))) / i
    else if (y <= 9.5d+57) then
        tmp = t_1
    else
        tmp = t_2
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double t_1 = t / (i + (y * c));
	double t_2 = (z / y) + (x - (a / (y / x)));
	double tmp;
	if (y <= -4.9e+55) {
		tmp = t_2;
	} else if (y <= 5.4e-211) {
		tmp = t_1;
	} else if (y <= 1.9e-117) {
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / i;
	} else if (y <= 9.5e+57) {
		tmp = t_1;
	} else {
		tmp = t_2;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	t_1 = t / (i + (y * c))
	t_2 = (z / y) + (x - (a / (y / x)))
	tmp = 0
	if y <= -4.9e+55:
		tmp = t_2
	elif y <= 5.4e-211:
		tmp = t_1
	elif y <= 1.9e-117:
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / i
	elif y <= 9.5e+57:
		tmp = t_1
	else:
		tmp = t_2
	return tmp
function code(x, y, z, t, a, b, c, i)
	t_1 = Float64(t / Float64(i + Float64(y * c)))
	t_2 = Float64(Float64(z / y) + Float64(x - Float64(a / Float64(y / x))))
	tmp = 0.0
	if (y <= -4.9e+55)
		tmp = t_2;
	elseif (y <= 5.4e-211)
		tmp = t_1;
	elseif (y <= 1.9e-117)
		tmp = Float64(Float64(t + Float64(y * Float64(230661.510616 + Float64(y * Float64(27464.7644705 + Float64(y * z)))))) / i);
	elseif (y <= 9.5e+57)
		tmp = t_1;
	else
		tmp = t_2;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	t_1 = t / (i + (y * c));
	t_2 = (z / y) + (x - (a / (y / x)));
	tmp = 0.0;
	if (y <= -4.9e+55)
		tmp = t_2;
	elseif (y <= 5.4e-211)
		tmp = t_1;
	elseif (y <= 1.9e-117)
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / i;
	elseif (y <= 9.5e+57)
		tmp = t_1;
	else
		tmp = t_2;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := Block[{t$95$1 = N[(t / N[(i + N[(y * c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(N[(z / y), $MachinePrecision] + N[(x - N[(a / N[(y / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[y, -4.9e+55], t$95$2, If[LessEqual[y, 5.4e-211], t$95$1, If[LessEqual[y, 1.9e-117], N[(N[(t + N[(y * N[(230661.510616 + N[(y * N[(27464.7644705 + N[(y * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / i), $MachinePrecision], If[LessEqual[y, 9.5e+57], t$95$1, t$95$2]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \frac{t}{i + y \cdot c}\\
t_2 := \frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\
\mathbf{if}\;y \leq -4.9 \cdot 10^{+55}:\\
\;\;\;\;t_2\\

\mathbf{elif}\;y \leq 5.4 \cdot 10^{-211}:\\
\;\;\;\;t_1\\

\mathbf{elif}\;y \leq 1.9 \cdot 10^{-117}:\\
\;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}{i}\\

\mathbf{elif}\;y \leq 9.5 \cdot 10^{+57}:\\
\;\;\;\;t_1\\

\mathbf{else}:\\
\;\;\;\;t_2\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -4.90000000000000015e55 or 9.4999999999999997e57 < y

    1. Initial program 2.4%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Taylor expanded in y around inf 57.8%

      \[\leadsto \color{blue}{\left(\frac{z}{y} + x\right) - \frac{a \cdot x}{y}} \]
    3. Step-by-step derivation
      1. associate--l+57.8%

        \[\leadsto \color{blue}{\frac{z}{y} + \left(x - \frac{a \cdot x}{y}\right)} \]
      2. associate-/l*66.1%

        \[\leadsto \frac{z}{y} + \left(x - \color{blue}{\frac{a}{\frac{y}{x}}}\right) \]
    4. Simplified66.1%

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

    if -4.90000000000000015e55 < y < 5.3999999999999998e-211 or 1.89999999999999986e-117 < y < 9.4999999999999997e57

    1. Initial program 90.3%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Step-by-step derivation
      1. clear-num90.1%

        \[\leadsto \color{blue}{\frac{1}{\frac{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i}{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}}} \]
      2. inv-pow90.1%

        \[\leadsto \color{blue}{{\left(\frac{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i}{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}\right)}^{-1}} \]
    3. Applied egg-rr90.1%

      \[\leadsto \color{blue}{{\left(\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(x, y, z\right), 27464.7644705\right), 230661.510616\right), t\right)}\right)}^{-1}} \]
    4. Step-by-step derivation
      1. unpow-190.1%

        \[\leadsto \color{blue}{\frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(x, y, z\right), 27464.7644705\right), 230661.510616\right), t\right)}}} \]
      2. fma-udef90.1%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{x \cdot y + z}, 27464.7644705\right), 230661.510616\right), t\right)}} \]
      3. *-commutative90.1%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{y \cdot x} + z, 27464.7644705\right), 230661.510616\right), t\right)}} \]
      4. fma-def90.1%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{\mathsf{fma}\left(y, x, z\right)}, 27464.7644705\right), 230661.510616\right), t\right)}} \]
    5. Simplified90.1%

      \[\leadsto \color{blue}{\frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, x, z\right), 27464.7644705\right), 230661.510616\right), t\right)}}} \]
    6. Taylor expanded in y around 0 48.5%

      \[\leadsto \frac{1}{\color{blue}{\left(\frac{c}{t} - 230661.510616 \cdot \frac{i}{{t}^{2}}\right) \cdot y + \frac{i}{t}}} \]
    7. Step-by-step derivation
      1. fma-def48.5%

        \[\leadsto \frac{1}{\color{blue}{\mathsf{fma}\left(\frac{c}{t} - 230661.510616 \cdot \frac{i}{{t}^{2}}, y, \frac{i}{t}\right)}} \]
      2. associate-*r/48.5%

        \[\leadsto \frac{1}{\mathsf{fma}\left(\frac{c}{t} - \color{blue}{\frac{230661.510616 \cdot i}{{t}^{2}}}, y, \frac{i}{t}\right)} \]
      3. unpow248.5%

        \[\leadsto \frac{1}{\mathsf{fma}\left(\frac{c}{t} - \frac{230661.510616 \cdot i}{\color{blue}{t \cdot t}}, y, \frac{i}{t}\right)} \]
    8. Simplified48.5%

      \[\leadsto \frac{1}{\color{blue}{\mathsf{fma}\left(\frac{c}{t} - \frac{230661.510616 \cdot i}{t \cdot t}, y, \frac{i}{t}\right)}} \]
    9. Taylor expanded in t around inf 59.6%

      \[\leadsto \color{blue}{\frac{t}{i + c \cdot y}} \]
    10. Step-by-step derivation
      1. +-commutative59.6%

        \[\leadsto \frac{t}{\color{blue}{c \cdot y + i}} \]
      2. *-commutative59.6%

        \[\leadsto \frac{t}{\color{blue}{y \cdot c} + i} \]
    11. Simplified59.6%

      \[\leadsto \color{blue}{\frac{t}{y \cdot c + i}} \]

    if 5.3999999999999998e-211 < y < 1.89999999999999986e-117

    1. Initial program 99.8%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Step-by-step derivation
      1. clear-num99.5%

        \[\leadsto \color{blue}{\frac{1}{\frac{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i}{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}}} \]
      2. inv-pow99.5%

        \[\leadsto \color{blue}{{\left(\frac{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i}{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}\right)}^{-1}} \]
    3. Applied egg-rr99.5%

      \[\leadsto \color{blue}{{\left(\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(x, y, z\right), 27464.7644705\right), 230661.510616\right), t\right)}\right)}^{-1}} \]
    4. Step-by-step derivation
      1. unpow-199.5%

        \[\leadsto \color{blue}{\frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(x, y, z\right), 27464.7644705\right), 230661.510616\right), t\right)}}} \]
      2. fma-udef99.5%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{x \cdot y + z}, 27464.7644705\right), 230661.510616\right), t\right)}} \]
      3. *-commutative99.5%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{y \cdot x} + z, 27464.7644705\right), 230661.510616\right), t\right)}} \]
      4. fma-def99.5%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{\mathsf{fma}\left(y, x, z\right)}, 27464.7644705\right), 230661.510616\right), t\right)}} \]
    5. Simplified99.5%

      \[\leadsto \color{blue}{\frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, x, z\right), 27464.7644705\right), 230661.510616\right), t\right)}}} \]
    6. Taylor expanded in i around inf 84.4%

      \[\leadsto \frac{1}{\color{blue}{\frac{i}{y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + \left(y \cdot x + z\right) \cdot y\right)\right) + t}}} \]
    7. Taylor expanded in x around 0 84.6%

      \[\leadsto \color{blue}{\frac{y \cdot \left(230661.510616 + y \cdot \left(y \cdot z + 27464.7644705\right)\right) + t}{i}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification63.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -4.9 \cdot 10^{+55}:\\ \;\;\;\;\frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\ \mathbf{elif}\;y \leq 5.4 \cdot 10^{-211}:\\ \;\;\;\;\frac{t}{i + y \cdot c}\\ \mathbf{elif}\;y \leq 1.9 \cdot 10^{-117}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}{i}\\ \mathbf{elif}\;y \leq 9.5 \cdot 10^{+57}:\\ \;\;\;\;\frac{t}{i + y \cdot c}\\ \mathbf{else}:\\ \;\;\;\;\frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\ \end{array} \]

Alternative 12: 64.2% accurate, 1.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{t}{i + y \cdot c}\\ t_2 := \frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\ \mathbf{if}\;y \leq -3.5 \cdot 10^{+55}:\\ \;\;\;\;t_2\\ \mathbf{elif}\;y \leq 9.6 \cdot 10^{-206}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;y \leq 2.05 \cdot 10^{-122}:\\ \;\;\;\;230661.510616 \cdot \frac{y}{i} + \frac{t}{i}\\ \mathbf{elif}\;y \leq 3.3 \cdot 10^{+56}:\\ \;\;\;\;t_1\\ \mathbf{else}:\\ \;\;\;\;t_2\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (let* ((t_1 (/ t (+ i (* y c)))) (t_2 (+ (/ z y) (- x (/ a (/ y x))))))
   (if (<= y -3.5e+55)
     t_2
     (if (<= y 9.6e-206)
       t_1
       (if (<= y 2.05e-122)
         (+ (* 230661.510616 (/ y i)) (/ t i))
         (if (<= y 3.3e+56) t_1 t_2))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double t_1 = t / (i + (y * c));
	double t_2 = (z / y) + (x - (a / (y / x)));
	double tmp;
	if (y <= -3.5e+55) {
		tmp = t_2;
	} else if (y <= 9.6e-206) {
		tmp = t_1;
	} else if (y <= 2.05e-122) {
		tmp = (230661.510616 * (y / i)) + (t / i);
	} else if (y <= 3.3e+56) {
		tmp = t_1;
	} else {
		tmp = t_2;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i)
    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), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8) :: t_1
    real(8) :: t_2
    real(8) :: tmp
    t_1 = t / (i + (y * c))
    t_2 = (z / y) + (x - (a / (y / x)))
    if (y <= (-3.5d+55)) then
        tmp = t_2
    else if (y <= 9.6d-206) then
        tmp = t_1
    else if (y <= 2.05d-122) then
        tmp = (230661.510616d0 * (y / i)) + (t / i)
    else if (y <= 3.3d+56) then
        tmp = t_1
    else
        tmp = t_2
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double t_1 = t / (i + (y * c));
	double t_2 = (z / y) + (x - (a / (y / x)));
	double tmp;
	if (y <= -3.5e+55) {
		tmp = t_2;
	} else if (y <= 9.6e-206) {
		tmp = t_1;
	} else if (y <= 2.05e-122) {
		tmp = (230661.510616 * (y / i)) + (t / i);
	} else if (y <= 3.3e+56) {
		tmp = t_1;
	} else {
		tmp = t_2;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	t_1 = t / (i + (y * c))
	t_2 = (z / y) + (x - (a / (y / x)))
	tmp = 0
	if y <= -3.5e+55:
		tmp = t_2
	elif y <= 9.6e-206:
		tmp = t_1
	elif y <= 2.05e-122:
		tmp = (230661.510616 * (y / i)) + (t / i)
	elif y <= 3.3e+56:
		tmp = t_1
	else:
		tmp = t_2
	return tmp
function code(x, y, z, t, a, b, c, i)
	t_1 = Float64(t / Float64(i + Float64(y * c)))
	t_2 = Float64(Float64(z / y) + Float64(x - Float64(a / Float64(y / x))))
	tmp = 0.0
	if (y <= -3.5e+55)
		tmp = t_2;
	elseif (y <= 9.6e-206)
		tmp = t_1;
	elseif (y <= 2.05e-122)
		tmp = Float64(Float64(230661.510616 * Float64(y / i)) + Float64(t / i));
	elseif (y <= 3.3e+56)
		tmp = t_1;
	else
		tmp = t_2;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	t_1 = t / (i + (y * c));
	t_2 = (z / y) + (x - (a / (y / x)));
	tmp = 0.0;
	if (y <= -3.5e+55)
		tmp = t_2;
	elseif (y <= 9.6e-206)
		tmp = t_1;
	elseif (y <= 2.05e-122)
		tmp = (230661.510616 * (y / i)) + (t / i);
	elseif (y <= 3.3e+56)
		tmp = t_1;
	else
		tmp = t_2;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := Block[{t$95$1 = N[(t / N[(i + N[(y * c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(N[(z / y), $MachinePrecision] + N[(x - N[(a / N[(y / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[y, -3.5e+55], t$95$2, If[LessEqual[y, 9.6e-206], t$95$1, If[LessEqual[y, 2.05e-122], N[(N[(230661.510616 * N[(y / i), $MachinePrecision]), $MachinePrecision] + N[(t / i), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 3.3e+56], t$95$1, t$95$2]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \frac{t}{i + y \cdot c}\\
t_2 := \frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\
\mathbf{if}\;y \leq -3.5 \cdot 10^{+55}:\\
\;\;\;\;t_2\\

\mathbf{elif}\;y \leq 9.6 \cdot 10^{-206}:\\
\;\;\;\;t_1\\

\mathbf{elif}\;y \leq 2.05 \cdot 10^{-122}:\\
\;\;\;\;230661.510616 \cdot \frac{y}{i} + \frac{t}{i}\\

\mathbf{elif}\;y \leq 3.3 \cdot 10^{+56}:\\
\;\;\;\;t_1\\

\mathbf{else}:\\
\;\;\;\;t_2\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -3.5000000000000001e55 or 3.30000000000000002e56 < y

    1. Initial program 2.4%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Taylor expanded in y around inf 57.8%

      \[\leadsto \color{blue}{\left(\frac{z}{y} + x\right) - \frac{a \cdot x}{y}} \]
    3. Step-by-step derivation
      1. associate--l+57.8%

        \[\leadsto \color{blue}{\frac{z}{y} + \left(x - \frac{a \cdot x}{y}\right)} \]
      2. associate-/l*66.1%

        \[\leadsto \frac{z}{y} + \left(x - \color{blue}{\frac{a}{\frac{y}{x}}}\right) \]
    4. Simplified66.1%

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

    if -3.5000000000000001e55 < y < 9.5999999999999998e-206 or 2.05e-122 < y < 3.30000000000000002e56

    1. Initial program 90.3%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Step-by-step derivation
      1. clear-num90.1%

        \[\leadsto \color{blue}{\frac{1}{\frac{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i}{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}}} \]
      2. inv-pow90.1%

        \[\leadsto \color{blue}{{\left(\frac{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i}{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}\right)}^{-1}} \]
    3. Applied egg-rr90.1%

      \[\leadsto \color{blue}{{\left(\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(x, y, z\right), 27464.7644705\right), 230661.510616\right), t\right)}\right)}^{-1}} \]
    4. Step-by-step derivation
      1. unpow-190.1%

        \[\leadsto \color{blue}{\frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(x, y, z\right), 27464.7644705\right), 230661.510616\right), t\right)}}} \]
      2. fma-udef90.1%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{x \cdot y + z}, 27464.7644705\right), 230661.510616\right), t\right)}} \]
      3. *-commutative90.1%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{y \cdot x} + z, 27464.7644705\right), 230661.510616\right), t\right)}} \]
      4. fma-def90.1%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{\mathsf{fma}\left(y, x, z\right)}, 27464.7644705\right), 230661.510616\right), t\right)}} \]
    5. Simplified90.1%

      \[\leadsto \color{blue}{\frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, x, z\right), 27464.7644705\right), 230661.510616\right), t\right)}}} \]
    6. Taylor expanded in y around 0 48.5%

      \[\leadsto \frac{1}{\color{blue}{\left(\frac{c}{t} - 230661.510616 \cdot \frac{i}{{t}^{2}}\right) \cdot y + \frac{i}{t}}} \]
    7. Step-by-step derivation
      1. fma-def48.5%

        \[\leadsto \frac{1}{\color{blue}{\mathsf{fma}\left(\frac{c}{t} - 230661.510616 \cdot \frac{i}{{t}^{2}}, y, \frac{i}{t}\right)}} \]
      2. associate-*r/48.5%

        \[\leadsto \frac{1}{\mathsf{fma}\left(\frac{c}{t} - \color{blue}{\frac{230661.510616 \cdot i}{{t}^{2}}}, y, \frac{i}{t}\right)} \]
      3. unpow248.5%

        \[\leadsto \frac{1}{\mathsf{fma}\left(\frac{c}{t} - \frac{230661.510616 \cdot i}{\color{blue}{t \cdot t}}, y, \frac{i}{t}\right)} \]
    8. Simplified48.5%

      \[\leadsto \frac{1}{\color{blue}{\mathsf{fma}\left(\frac{c}{t} - \frac{230661.510616 \cdot i}{t \cdot t}, y, \frac{i}{t}\right)}} \]
    9. Taylor expanded in t around inf 59.6%

      \[\leadsto \color{blue}{\frac{t}{i + c \cdot y}} \]
    10. Step-by-step derivation
      1. +-commutative59.6%

        \[\leadsto \frac{t}{\color{blue}{c \cdot y + i}} \]
      2. *-commutative59.6%

        \[\leadsto \frac{t}{\color{blue}{y \cdot c} + i} \]
    11. Simplified59.6%

      \[\leadsto \color{blue}{\frac{t}{y \cdot c + i}} \]

    if 9.5999999999999998e-206 < y < 2.05e-122

    1. Initial program 99.8%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Step-by-step derivation
      1. clear-num99.5%

        \[\leadsto \color{blue}{\frac{1}{\frac{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i}{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}}} \]
      2. inv-pow99.5%

        \[\leadsto \color{blue}{{\left(\frac{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i}{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}\right)}^{-1}} \]
    3. Applied egg-rr99.5%

      \[\leadsto \color{blue}{{\left(\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(x, y, z\right), 27464.7644705\right), 230661.510616\right), t\right)}\right)}^{-1}} \]
    4. Step-by-step derivation
      1. unpow-199.5%

        \[\leadsto \color{blue}{\frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(x, y, z\right), 27464.7644705\right), 230661.510616\right), t\right)}}} \]
      2. fma-udef99.5%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{x \cdot y + z}, 27464.7644705\right), 230661.510616\right), t\right)}} \]
      3. *-commutative99.5%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{y \cdot x} + z, 27464.7644705\right), 230661.510616\right), t\right)}} \]
      4. fma-def99.5%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{\mathsf{fma}\left(y, x, z\right)}, 27464.7644705\right), 230661.510616\right), t\right)}} \]
    5. Simplified99.5%

      \[\leadsto \color{blue}{\frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, x, z\right), 27464.7644705\right), 230661.510616\right), t\right)}}} \]
    6. Taylor expanded in i around inf 84.4%

      \[\leadsto \frac{1}{\color{blue}{\frac{i}{y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + \left(y \cdot x + z\right) \cdot y\right)\right) + t}}} \]
    7. Taylor expanded in y around 0 84.5%

      \[\leadsto \color{blue}{230661.510616 \cdot \frac{y}{i} + \frac{t}{i}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification63.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -3.5 \cdot 10^{+55}:\\ \;\;\;\;\frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\ \mathbf{elif}\;y \leq 9.6 \cdot 10^{-206}:\\ \;\;\;\;\frac{t}{i + y \cdot c}\\ \mathbf{elif}\;y \leq 2.05 \cdot 10^{-122}:\\ \;\;\;\;230661.510616 \cdot \frac{y}{i} + \frac{t}{i}\\ \mathbf{elif}\;y \leq 3.3 \cdot 10^{+56}:\\ \;\;\;\;\frac{t}{i + y \cdot c}\\ \mathbf{else}:\\ \;\;\;\;\frac{z}{y} + \left(x - \frac{a}{\frac{y}{x}}\right)\\ \end{array} \]

Alternative 13: 57.7% accurate, 2.2× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{t}{i + y \cdot c}\\ \mathbf{if}\;y \leq -1.08 \cdot 10^{+24}:\\ \;\;\;\;x\\ \mathbf{elif}\;y \leq 3 \cdot 10^{-206}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;y \leq 7 \cdot 10^{-125}:\\ \;\;\;\;230661.510616 \cdot \frac{y}{i} + \frac{t}{i}\\ \mathbf{elif}\;y \leq 2.7 \cdot 10^{+59}:\\ \;\;\;\;t_1\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (let* ((t_1 (/ t (+ i (* y c)))))
   (if (<= y -1.08e+24)
     x
     (if (<= y 3e-206)
       t_1
       (if (<= y 7e-125)
         (+ (* 230661.510616 (/ y i)) (/ t i))
         (if (<= y 2.7e+59) t_1 x))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double t_1 = t / (i + (y * c));
	double tmp;
	if (y <= -1.08e+24) {
		tmp = x;
	} else if (y <= 3e-206) {
		tmp = t_1;
	} else if (y <= 7e-125) {
		tmp = (230661.510616 * (y / i)) + (t / i);
	} else if (y <= 2.7e+59) {
		tmp = t_1;
	} else {
		tmp = x;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i)
    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), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8) :: t_1
    real(8) :: tmp
    t_1 = t / (i + (y * c))
    if (y <= (-1.08d+24)) then
        tmp = x
    else if (y <= 3d-206) then
        tmp = t_1
    else if (y <= 7d-125) then
        tmp = (230661.510616d0 * (y / i)) + (t / i)
    else if (y <= 2.7d+59) then
        tmp = t_1
    else
        tmp = x
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double t_1 = t / (i + (y * c));
	double tmp;
	if (y <= -1.08e+24) {
		tmp = x;
	} else if (y <= 3e-206) {
		tmp = t_1;
	} else if (y <= 7e-125) {
		tmp = (230661.510616 * (y / i)) + (t / i);
	} else if (y <= 2.7e+59) {
		tmp = t_1;
	} else {
		tmp = x;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	t_1 = t / (i + (y * c))
	tmp = 0
	if y <= -1.08e+24:
		tmp = x
	elif y <= 3e-206:
		tmp = t_1
	elif y <= 7e-125:
		tmp = (230661.510616 * (y / i)) + (t / i)
	elif y <= 2.7e+59:
		tmp = t_1
	else:
		tmp = x
	return tmp
function code(x, y, z, t, a, b, c, i)
	t_1 = Float64(t / Float64(i + Float64(y * c)))
	tmp = 0.0
	if (y <= -1.08e+24)
		tmp = x;
	elseif (y <= 3e-206)
		tmp = t_1;
	elseif (y <= 7e-125)
		tmp = Float64(Float64(230661.510616 * Float64(y / i)) + Float64(t / i));
	elseif (y <= 2.7e+59)
		tmp = t_1;
	else
		tmp = x;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	t_1 = t / (i + (y * c));
	tmp = 0.0;
	if (y <= -1.08e+24)
		tmp = x;
	elseif (y <= 3e-206)
		tmp = t_1;
	elseif (y <= 7e-125)
		tmp = (230661.510616 * (y / i)) + (t / i);
	elseif (y <= 2.7e+59)
		tmp = t_1;
	else
		tmp = x;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := Block[{t$95$1 = N[(t / N[(i + N[(y * c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[y, -1.08e+24], x, If[LessEqual[y, 3e-206], t$95$1, If[LessEqual[y, 7e-125], N[(N[(230661.510616 * N[(y / i), $MachinePrecision]), $MachinePrecision] + N[(t / i), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 2.7e+59], t$95$1, x]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \frac{t}{i + y \cdot c}\\
\mathbf{if}\;y \leq -1.08 \cdot 10^{+24}:\\
\;\;\;\;x\\

\mathbf{elif}\;y \leq 3 \cdot 10^{-206}:\\
\;\;\;\;t_1\\

\mathbf{elif}\;y \leq 7 \cdot 10^{-125}:\\
\;\;\;\;230661.510616 \cdot \frac{y}{i} + \frac{t}{i}\\

\mathbf{elif}\;y \leq 2.7 \cdot 10^{+59}:\\
\;\;\;\;t_1\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -1.0799999999999999e24 or 2.7000000000000001e59 < y

    1. Initial program 4.4%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Taylor expanded in y around inf 48.1%

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

    if -1.0799999999999999e24 < y < 3.0000000000000002e-206 or 6.99999999999999995e-125 < y < 2.7000000000000001e59

    1. Initial program 93.3%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Step-by-step derivation
      1. clear-num93.2%

        \[\leadsto \color{blue}{\frac{1}{\frac{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i}{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}}} \]
      2. inv-pow93.2%

        \[\leadsto \color{blue}{{\left(\frac{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i}{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}\right)}^{-1}} \]
    3. Applied egg-rr93.2%

      \[\leadsto \color{blue}{{\left(\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(x, y, z\right), 27464.7644705\right), 230661.510616\right), t\right)}\right)}^{-1}} \]
    4. Step-by-step derivation
      1. unpow-193.2%

        \[\leadsto \color{blue}{\frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(x, y, z\right), 27464.7644705\right), 230661.510616\right), t\right)}}} \]
      2. fma-udef93.2%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{x \cdot y + z}, 27464.7644705\right), 230661.510616\right), t\right)}} \]
      3. *-commutative93.2%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{y \cdot x} + z, 27464.7644705\right), 230661.510616\right), t\right)}} \]
      4. fma-def93.2%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{\mathsf{fma}\left(y, x, z\right)}, 27464.7644705\right), 230661.510616\right), t\right)}} \]
    5. Simplified93.2%

      \[\leadsto \color{blue}{\frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, x, z\right), 27464.7644705\right), 230661.510616\right), t\right)}}} \]
    6. Taylor expanded in y around 0 50.7%

      \[\leadsto \frac{1}{\color{blue}{\left(\frac{c}{t} - 230661.510616 \cdot \frac{i}{{t}^{2}}\right) \cdot y + \frac{i}{t}}} \]
    7. Step-by-step derivation
      1. fma-def50.7%

        \[\leadsto \frac{1}{\color{blue}{\mathsf{fma}\left(\frac{c}{t} - 230661.510616 \cdot \frac{i}{{t}^{2}}, y, \frac{i}{t}\right)}} \]
      2. associate-*r/50.7%

        \[\leadsto \frac{1}{\mathsf{fma}\left(\frac{c}{t} - \color{blue}{\frac{230661.510616 \cdot i}{{t}^{2}}}, y, \frac{i}{t}\right)} \]
      3. unpow250.7%

        \[\leadsto \frac{1}{\mathsf{fma}\left(\frac{c}{t} - \frac{230661.510616 \cdot i}{\color{blue}{t \cdot t}}, y, \frac{i}{t}\right)} \]
    8. Simplified50.7%

      \[\leadsto \frac{1}{\color{blue}{\mathsf{fma}\left(\frac{c}{t} - \frac{230661.510616 \cdot i}{t \cdot t}, y, \frac{i}{t}\right)}} \]
    9. Taylor expanded in t around inf 62.4%

      \[\leadsto \color{blue}{\frac{t}{i + c \cdot y}} \]
    10. Step-by-step derivation
      1. +-commutative62.4%

        \[\leadsto \frac{t}{\color{blue}{c \cdot y + i}} \]
      2. *-commutative62.4%

        \[\leadsto \frac{t}{\color{blue}{y \cdot c} + i} \]
    11. Simplified62.4%

      \[\leadsto \color{blue}{\frac{t}{y \cdot c + i}} \]

    if 3.0000000000000002e-206 < y < 6.99999999999999995e-125

    1. Initial program 99.8%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Step-by-step derivation
      1. clear-num99.5%

        \[\leadsto \color{blue}{\frac{1}{\frac{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i}{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}}} \]
      2. inv-pow99.5%

        \[\leadsto \color{blue}{{\left(\frac{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i}{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}\right)}^{-1}} \]
    3. Applied egg-rr99.5%

      \[\leadsto \color{blue}{{\left(\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(x, y, z\right), 27464.7644705\right), 230661.510616\right), t\right)}\right)}^{-1}} \]
    4. Step-by-step derivation
      1. unpow-199.5%

        \[\leadsto \color{blue}{\frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(x, y, z\right), 27464.7644705\right), 230661.510616\right), t\right)}}} \]
      2. fma-udef99.5%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{x \cdot y + z}, 27464.7644705\right), 230661.510616\right), t\right)}} \]
      3. *-commutative99.5%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{y \cdot x} + z, 27464.7644705\right), 230661.510616\right), t\right)}} \]
      4. fma-def99.5%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{\mathsf{fma}\left(y, x, z\right)}, 27464.7644705\right), 230661.510616\right), t\right)}} \]
    5. Simplified99.5%

      \[\leadsto \color{blue}{\frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, x, z\right), 27464.7644705\right), 230661.510616\right), t\right)}}} \]
    6. Taylor expanded in i around inf 84.4%

      \[\leadsto \frac{1}{\color{blue}{\frac{i}{y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + \left(y \cdot x + z\right) \cdot y\right)\right) + t}}} \]
    7. Taylor expanded in y around 0 84.5%

      \[\leadsto \color{blue}{230661.510616 \cdot \frac{y}{i} + \frac{t}{i}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification58.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1.08 \cdot 10^{+24}:\\ \;\;\;\;x\\ \mathbf{elif}\;y \leq 3 \cdot 10^{-206}:\\ \;\;\;\;\frac{t}{i + y \cdot c}\\ \mathbf{elif}\;y \leq 7 \cdot 10^{-125}:\\ \;\;\;\;230661.510616 \cdot \frac{y}{i} + \frac{t}{i}\\ \mathbf{elif}\;y \leq 2.7 \cdot 10^{+59}:\\ \;\;\;\;\frac{t}{i + y \cdot c}\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \]

Alternative 14: 50.2% accurate, 2.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -9.2 \cdot 10^{+23}:\\ \;\;\;\;x\\ \mathbf{elif}\;y \leq -1.5 \cdot 10^{-119}:\\ \;\;\;\;\frac{t}{i}\\ \mathbf{elif}\;y \leq -7.2 \cdot 10^{-159}:\\ \;\;\;\;\frac{t}{y \cdot c}\\ \mathbf{elif}\;y \leq 1550000000000:\\ \;\;\;\;\frac{t}{i}\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (<= y -9.2e+23)
   x
   (if (<= y -1.5e-119)
     (/ t i)
     (if (<= y -7.2e-159)
       (/ t (* y c))
       (if (<= y 1550000000000.0) (/ t i) x)))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if (y <= -9.2e+23) {
		tmp = x;
	} else if (y <= -1.5e-119) {
		tmp = t / i;
	} else if (y <= -7.2e-159) {
		tmp = t / (y * c);
	} else if (y <= 1550000000000.0) {
		tmp = t / i;
	} else {
		tmp = x;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i)
    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), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8) :: tmp
    if (y <= (-9.2d+23)) then
        tmp = x
    else if (y <= (-1.5d-119)) then
        tmp = t / i
    else if (y <= (-7.2d-159)) then
        tmp = t / (y * c)
    else if (y <= 1550000000000.0d0) then
        tmp = t / i
    else
        tmp = x
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if (y <= -9.2e+23) {
		tmp = x;
	} else if (y <= -1.5e-119) {
		tmp = t / i;
	} else if (y <= -7.2e-159) {
		tmp = t / (y * c);
	} else if (y <= 1550000000000.0) {
		tmp = t / i;
	} else {
		tmp = x;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	tmp = 0
	if y <= -9.2e+23:
		tmp = x
	elif y <= -1.5e-119:
		tmp = t / i
	elif y <= -7.2e-159:
		tmp = t / (y * c)
	elif y <= 1550000000000.0:
		tmp = t / i
	else:
		tmp = x
	return tmp
function code(x, y, z, t, a, b, c, i)
	tmp = 0.0
	if (y <= -9.2e+23)
		tmp = x;
	elseif (y <= -1.5e-119)
		tmp = Float64(t / i);
	elseif (y <= -7.2e-159)
		tmp = Float64(t / Float64(y * c));
	elseif (y <= 1550000000000.0)
		tmp = Float64(t / i);
	else
		tmp = x;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	tmp = 0.0;
	if (y <= -9.2e+23)
		tmp = x;
	elseif (y <= -1.5e-119)
		tmp = t / i;
	elseif (y <= -7.2e-159)
		tmp = t / (y * c);
	elseif (y <= 1550000000000.0)
		tmp = t / i;
	else
		tmp = x;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := If[LessEqual[y, -9.2e+23], x, If[LessEqual[y, -1.5e-119], N[(t / i), $MachinePrecision], If[LessEqual[y, -7.2e-159], N[(t / N[(y * c), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 1550000000000.0], N[(t / i), $MachinePrecision], x]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -9.2 \cdot 10^{+23}:\\
\;\;\;\;x\\

\mathbf{elif}\;y \leq -1.5 \cdot 10^{-119}:\\
\;\;\;\;\frac{t}{i}\\

\mathbf{elif}\;y \leq -7.2 \cdot 10^{-159}:\\
\;\;\;\;\frac{t}{y \cdot c}\\

\mathbf{elif}\;y \leq 1550000000000:\\
\;\;\;\;\frac{t}{i}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -9.2000000000000002e23 or 1.55e12 < y

    1. Initial program 7.6%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Taylor expanded in y around inf 43.0%

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

    if -9.2000000000000002e23 < y < -1.5000000000000001e-119 or -7.20000000000000042e-159 < y < 1.55e12

    1. Initial program 99.7%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Taylor expanded in y around 0 53.9%

      \[\leadsto \color{blue}{\frac{t}{i}} \]

    if -1.5000000000000001e-119 < y < -7.20000000000000042e-159

    1. Initial program 100.0%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Taylor expanded in c around inf 73.4%

      \[\leadsto \color{blue}{\frac{y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + \left(y \cdot x + z\right) \cdot y\right)\right) + t}{c \cdot y}} \]
    3. Taylor expanded in y around 0 72.7%

      \[\leadsto \color{blue}{\frac{t}{c \cdot y}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification49.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -9.2 \cdot 10^{+23}:\\ \;\;\;\;x\\ \mathbf{elif}\;y \leq -1.5 \cdot 10^{-119}:\\ \;\;\;\;\frac{t}{i}\\ \mathbf{elif}\;y \leq -7.2 \cdot 10^{-159}:\\ \;\;\;\;\frac{t}{y \cdot c}\\ \mathbf{elif}\;y \leq 1550000000000:\\ \;\;\;\;\frac{t}{i}\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \]

Alternative 15: 58.3% accurate, 3.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -8.8 \cdot 10^{+23}:\\ \;\;\;\;x\\ \mathbf{elif}\;y \leq 2.7 \cdot 10^{+59}:\\ \;\;\;\;\frac{t}{i + y \cdot c}\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (<= y -8.8e+23) x (if (<= y 2.7e+59) (/ t (+ i (* y c))) x)))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if (y <= -8.8e+23) {
		tmp = x;
	} else if (y <= 2.7e+59) {
		tmp = t / (i + (y * c));
	} else {
		tmp = x;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i)
    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), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8) :: tmp
    if (y <= (-8.8d+23)) then
        tmp = x
    else if (y <= 2.7d+59) then
        tmp = t / (i + (y * c))
    else
        tmp = x
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if (y <= -8.8e+23) {
		tmp = x;
	} else if (y <= 2.7e+59) {
		tmp = t / (i + (y * c));
	} else {
		tmp = x;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	tmp = 0
	if y <= -8.8e+23:
		tmp = x
	elif y <= 2.7e+59:
		tmp = t / (i + (y * c))
	else:
		tmp = x
	return tmp
function code(x, y, z, t, a, b, c, i)
	tmp = 0.0
	if (y <= -8.8e+23)
		tmp = x;
	elseif (y <= 2.7e+59)
		tmp = Float64(t / Float64(i + Float64(y * c)));
	else
		tmp = x;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	tmp = 0.0;
	if (y <= -8.8e+23)
		tmp = x;
	elseif (y <= 2.7e+59)
		tmp = t / (i + (y * c));
	else
		tmp = x;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := If[LessEqual[y, -8.8e+23], x, If[LessEqual[y, 2.7e+59], N[(t / N[(i + N[(y * c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], x]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -8.8 \cdot 10^{+23}:\\
\;\;\;\;x\\

\mathbf{elif}\;y \leq 2.7 \cdot 10^{+59}:\\
\;\;\;\;\frac{t}{i + y \cdot c}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -8.80000000000000034e23 or 2.7000000000000001e59 < y

    1. Initial program 4.4%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Taylor expanded in y around inf 48.1%

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

    if -8.80000000000000034e23 < y < 2.7000000000000001e59

    1. Initial program 94.1%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Step-by-step derivation
      1. clear-num93.9%

        \[\leadsto \color{blue}{\frac{1}{\frac{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i}{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}}} \]
      2. inv-pow93.9%

        \[\leadsto \color{blue}{{\left(\frac{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i}{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}\right)}^{-1}} \]
    3. Applied egg-rr93.9%

      \[\leadsto \color{blue}{{\left(\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(x, y, z\right), 27464.7644705\right), 230661.510616\right), t\right)}\right)}^{-1}} \]
    4. Step-by-step derivation
      1. unpow-193.9%

        \[\leadsto \color{blue}{\frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(x, y, z\right), 27464.7644705\right), 230661.510616\right), t\right)}}} \]
      2. fma-udef93.9%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{x \cdot y + z}, 27464.7644705\right), 230661.510616\right), t\right)}} \]
      3. *-commutative93.9%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{y \cdot x} + z, 27464.7644705\right), 230661.510616\right), t\right)}} \]
      4. fma-def93.9%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{\mathsf{fma}\left(y, x, z\right)}, 27464.7644705\right), 230661.510616\right), t\right)}} \]
    5. Simplified93.9%

      \[\leadsto \color{blue}{\frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, x, z\right), 27464.7644705\right), 230661.510616\right), t\right)}}} \]
    6. Taylor expanded in y around 0 51.7%

      \[\leadsto \frac{1}{\color{blue}{\left(\frac{c}{t} - 230661.510616 \cdot \frac{i}{{t}^{2}}\right) \cdot y + \frac{i}{t}}} \]
    7. Step-by-step derivation
      1. fma-def51.7%

        \[\leadsto \frac{1}{\color{blue}{\mathsf{fma}\left(\frac{c}{t} - 230661.510616 \cdot \frac{i}{{t}^{2}}, y, \frac{i}{t}\right)}} \]
      2. associate-*r/51.7%

        \[\leadsto \frac{1}{\mathsf{fma}\left(\frac{c}{t} - \color{blue}{\frac{230661.510616 \cdot i}{{t}^{2}}}, y, \frac{i}{t}\right)} \]
      3. unpow251.7%

        \[\leadsto \frac{1}{\mathsf{fma}\left(\frac{c}{t} - \frac{230661.510616 \cdot i}{\color{blue}{t \cdot t}}, y, \frac{i}{t}\right)} \]
    8. Simplified51.7%

      \[\leadsto \frac{1}{\color{blue}{\mathsf{fma}\left(\frac{c}{t} - \frac{230661.510616 \cdot i}{t \cdot t}, y, \frac{i}{t}\right)}} \]
    9. Taylor expanded in t around inf 62.4%

      \[\leadsto \color{blue}{\frac{t}{i + c \cdot y}} \]
    10. Step-by-step derivation
      1. +-commutative62.4%

        \[\leadsto \frac{t}{\color{blue}{c \cdot y + i}} \]
      2. *-commutative62.4%

        \[\leadsto \frac{t}{\color{blue}{y \cdot c} + i} \]
    11. Simplified62.4%

      \[\leadsto \color{blue}{\frac{t}{y \cdot c + i}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification56.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -8.8 \cdot 10^{+23}:\\ \;\;\;\;x\\ \mathbf{elif}\;y \leq 2.7 \cdot 10^{+59}:\\ \;\;\;\;\frac{t}{i + y \cdot c}\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \]

Alternative 16: 50.9% accurate, 4.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -8.4 \cdot 10^{+23}:\\ \;\;\;\;x\\ \mathbf{elif}\;y \leq 1040000000000:\\ \;\;\;\;\frac{t}{i}\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (<= y -8.4e+23) x (if (<= y 1040000000000.0) (/ t i) x)))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if (y <= -8.4e+23) {
		tmp = x;
	} else if (y <= 1040000000000.0) {
		tmp = t / i;
	} else {
		tmp = x;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i)
    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), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8) :: tmp
    if (y <= (-8.4d+23)) then
        tmp = x
    else if (y <= 1040000000000.0d0) then
        tmp = t / i
    else
        tmp = x
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if (y <= -8.4e+23) {
		tmp = x;
	} else if (y <= 1040000000000.0) {
		tmp = t / i;
	} else {
		tmp = x;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	tmp = 0
	if y <= -8.4e+23:
		tmp = x
	elif y <= 1040000000000.0:
		tmp = t / i
	else:
		tmp = x
	return tmp
function code(x, y, z, t, a, b, c, i)
	tmp = 0.0
	if (y <= -8.4e+23)
		tmp = x;
	elseif (y <= 1040000000000.0)
		tmp = Float64(t / i);
	else
		tmp = x;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	tmp = 0.0;
	if (y <= -8.4e+23)
		tmp = x;
	elseif (y <= 1040000000000.0)
		tmp = t / i;
	else
		tmp = x;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := If[LessEqual[y, -8.4e+23], x, If[LessEqual[y, 1040000000000.0], N[(t / i), $MachinePrecision], x]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -8.4 \cdot 10^{+23}:\\
\;\;\;\;x\\

\mathbf{elif}\;y \leq 1040000000000:\\
\;\;\;\;\frac{t}{i}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -8.4000000000000005e23 or 1.04e12 < y

    1. Initial program 7.6%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Taylor expanded in y around inf 43.0%

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

    if -8.4000000000000005e23 < y < 1.04e12

    1. Initial program 99.7%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Taylor expanded in y around 0 52.1%

      \[\leadsto \color{blue}{\frac{t}{i}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification48.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -8.4 \cdot 10^{+23}:\\ \;\;\;\;x\\ \mathbf{elif}\;y \leq 1040000000000:\\ \;\;\;\;\frac{t}{i}\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \]

Alternative 17: 25.5% accurate, 33.0× speedup?

\[\begin{array}{l} \\ x \end{array} \]
(FPCore (x y z t a b c i) :precision binary64 x)
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	return x;
}
real(8) function code(x, y, z, t, a, b, c, i)
    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), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    code = x
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	return x;
}
def code(x, y, z, t, a, b, c, i):
	return x
function code(x, y, z, t, a, b, c, i)
	return x
end
function tmp = code(x, y, z, t, a, b, c, i)
	tmp = x;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := x
\begin{array}{l}

\\
x
\end{array}
Derivation
  1. Initial program 59.4%

    \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
  2. Taylor expanded in y around inf 20.7%

    \[\leadsto \color{blue}{x} \]
  3. Final simplification20.7%

    \[\leadsto x \]

Reproduce

?
herbie shell --seed 2023171 
(FPCore (x y z t a b c i)
  :name "Numeric.SpecFunctions:logGamma from math-functions-0.1.5.2"
  :precision binary64
  (/ (+ (* (+ (* (+ (* (+ (* x y) z) y) 27464.7644705) y) 230661.510616) y) t) (+ (* (+ (* (+ (* (+ y a) y) b) y) c) y) i)))