Numeric.SpecFunctions:logGamma from math-functions-0.1.5.2

Percentage Accurate: 56.0% → 85.1%
Time: 30.3s
Alternatives: 17
Speedup: 1.9×

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: 56.0% 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: 85.1% accurate, 0.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{if}\;y \leq -1.16 \cdot 10^{+61}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;y \leq 2.5 \cdot 10^{+58}:\\ \;\;\;\;\frac{t + y \cdot \left(y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616\right)}{y \cdot \left(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right) + i}\\ \mathbf{elif}\;y \leq 6.8 \cdot 10^{+120}:\\ \;\;\;\;\frac{-1}{\frac{\frac{z}{{x}^{2}} - \frac{a}{x}}{y} + \frac{-1}{x}}\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (let* ((t_1 (+ x (- (/ z y) (* a (/ x y))))))
   (if (<= y -1.16e+61)
     t_1
     (if (<= y 2.5e+58)
       (/
        (+
         t
         (* y (+ (* y (+ (* y (+ (* x y) z)) 27464.7644705)) 230661.510616)))
        (+ (* y (+ (* y (+ (* y (+ y a)) b)) c)) i))
       (if (<= y 6.8e+120)
         (/ -1.0 (+ (/ (- (/ z (pow x 2.0)) (/ a x)) y) (/ -1.0 x)))
         t_1)))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double t_1 = x + ((z / y) - (a * (x / y)));
	double tmp;
	if (y <= -1.16e+61) {
		tmp = t_1;
	} else if (y <= 2.5e+58) {
		tmp = (t + (y * ((y * ((y * ((x * y) + z)) + 27464.7644705)) + 230661.510616))) / ((y * ((y * ((y * (y + a)) + b)) + c)) + i);
	} else if (y <= 6.8e+120) {
		tmp = -1.0 / ((((z / pow(x, 2.0)) - (a / x)) / y) + (-1.0 / x));
	} 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) :: tmp
    t_1 = x + ((z / y) - (a * (x / y)))
    if (y <= (-1.16d+61)) then
        tmp = t_1
    else if (y <= 2.5d+58) then
        tmp = (t + (y * ((y * ((y * ((x * y) + z)) + 27464.7644705d0)) + 230661.510616d0))) / ((y * ((y * ((y * (y + a)) + b)) + c)) + i)
    else if (y <= 6.8d+120) then
        tmp = (-1.0d0) / ((((z / (x ** 2.0d0)) - (a / x)) / y) + ((-1.0d0) / x))
    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 = x + ((z / y) - (a * (x / y)));
	double tmp;
	if (y <= -1.16e+61) {
		tmp = t_1;
	} else if (y <= 2.5e+58) {
		tmp = (t + (y * ((y * ((y * ((x * y) + z)) + 27464.7644705)) + 230661.510616))) / ((y * ((y * ((y * (y + a)) + b)) + c)) + i);
	} else if (y <= 6.8e+120) {
		tmp = -1.0 / ((((z / Math.pow(x, 2.0)) - (a / x)) / y) + (-1.0 / x));
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	t_1 = x + ((z / y) - (a * (x / y)))
	tmp = 0
	if y <= -1.16e+61:
		tmp = t_1
	elif y <= 2.5e+58:
		tmp = (t + (y * ((y * ((y * ((x * y) + z)) + 27464.7644705)) + 230661.510616))) / ((y * ((y * ((y * (y + a)) + b)) + c)) + i)
	elif y <= 6.8e+120:
		tmp = -1.0 / ((((z / math.pow(x, 2.0)) - (a / x)) / y) + (-1.0 / x))
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b, c, i)
	t_1 = Float64(x + Float64(Float64(z / y) - Float64(a * Float64(x / y))))
	tmp = 0.0
	if (y <= -1.16e+61)
		tmp = t_1;
	elseif (y <= 2.5e+58)
		tmp = Float64(Float64(t + Float64(y * Float64(Float64(y * Float64(Float64(y * Float64(Float64(x * y) + z)) + 27464.7644705)) + 230661.510616))) / Float64(Float64(y * Float64(Float64(y * Float64(Float64(y * Float64(y + a)) + b)) + c)) + i));
	elseif (y <= 6.8e+120)
		tmp = Float64(-1.0 / Float64(Float64(Float64(Float64(z / (x ^ 2.0)) - Float64(a / x)) / y) + Float64(-1.0 / x)));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	t_1 = x + ((z / y) - (a * (x / y)));
	tmp = 0.0;
	if (y <= -1.16e+61)
		tmp = t_1;
	elseif (y <= 2.5e+58)
		tmp = (t + (y * ((y * ((y * ((x * y) + z)) + 27464.7644705)) + 230661.510616))) / ((y * ((y * ((y * (y + a)) + b)) + c)) + i);
	elseif (y <= 6.8e+120)
		tmp = -1.0 / ((((z / (x ^ 2.0)) - (a / x)) / y) + (-1.0 / x));
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := Block[{t$95$1 = N[(x + N[(N[(z / y), $MachinePrecision] - N[(a * N[(x / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[y, -1.16e+61], t$95$1, If[LessEqual[y, 2.5e+58], N[(N[(t + N[(y * N[(N[(y * N[(N[(y * N[(N[(x * y), $MachinePrecision] + z), $MachinePrecision]), $MachinePrecision] + 27464.7644705), $MachinePrecision]), $MachinePrecision] + 230661.510616), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(N[(y * N[(N[(y * N[(N[(y * N[(y + a), $MachinePrecision]), $MachinePrecision] + b), $MachinePrecision]), $MachinePrecision] + c), $MachinePrecision]), $MachinePrecision] + i), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 6.8e+120], N[(-1.0 / N[(N[(N[(N[(z / N[Power[x, 2.0], $MachinePrecision]), $MachinePrecision] - N[(a / x), $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision] + N[(-1.0 / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\
\mathbf{if}\;y \leq -1.16 \cdot 10^{+61}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;y \leq 2.5 \cdot 10^{+58}:\\
\;\;\;\;\frac{t + y \cdot \left(y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616\right)}{y \cdot \left(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right) + i}\\

\mathbf{elif}\;y \leq 6.8 \cdot 10^{+120}:\\
\;\;\;\;\frac{-1}{\frac{\frac{z}{{x}^{2}} - \frac{a}{x}}{y} + \frac{-1}{x}}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -1.16e61 or 6.79999999999999998e120 < 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. Add Preprocessing
    3. Taylor expanded in y around inf 67.1%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    4. Step-by-step derivation
      1. associate--l+67.1%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. associate-/l*71.6%

        \[\leadsto x + \left(\frac{z}{y} - \color{blue}{a \cdot \frac{x}{y}}\right) \]
    5. Simplified71.6%

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

    if -1.16e61 < y < 2.49999999999999993e58

    1. Initial program 94.7%

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

    if 2.49999999999999993e58 < y < 6.79999999999999998e120

    1. Initial program 21.3%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Step-by-step derivation
      1. clear-num21.3%

        \[\leadsto \color{blue}{\frac{1}{\frac{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i}{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}}} \]
      2. inv-pow21.3%

        \[\leadsto \color{blue}{{\left(\frac{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i}{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}\right)}^{-1}} \]
    4. Applied egg-rr21.3%

      \[\leadsto \color{blue}{{\left(\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(x, y, z\right), 27464.7644705\right), 230661.510616\right), t\right)}\right)}^{-1}} \]
    5. Step-by-step derivation
      1. unpow-121.3%

        \[\leadsto \color{blue}{\frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(x, y, z\right), 27464.7644705\right), 230661.510616\right), t\right)}}} \]
      2. fma-undefine21.3%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{x \cdot y + z}, 27464.7644705\right), 230661.510616\right), t\right)}} \]
      3. *-commutative21.3%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{y \cdot x} + z, 27464.7644705\right), 230661.510616\right), t\right)}} \]
      4. fma-define21.3%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{\mathsf{fma}\left(y, x, z\right)}, 27464.7644705\right), 230661.510616\right), t\right)}} \]
    6. Simplified21.3%

      \[\leadsto \color{blue}{\frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, x, z\right), 27464.7644705\right), 230661.510616\right), t\right)}}} \]
    7. Taylor expanded in y around -inf 55.0%

      \[\leadsto \frac{1}{\color{blue}{-1 \cdot \frac{-1 \cdot \frac{a}{x} - -1 \cdot \frac{z}{{x}^{2}}}{y} + \frac{1}{x}}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification84.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1.16 \cdot 10^{+61}:\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{elif}\;y \leq 2.5 \cdot 10^{+58}:\\ \;\;\;\;\frac{t + y \cdot \left(y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616\right)}{y \cdot \left(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right) + i}\\ \mathbf{elif}\;y \leq 6.8 \cdot 10^{+120}:\\ \;\;\;\;\frac{-1}{\frac{\frac{z}{{x}^{2}} - \frac{a}{x}}{y} + \frac{-1}{x}}\\ \mathbf{else}:\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 2: 83.6% accurate, 0.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := t + y \cdot \left(y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616\right)\\ t_2 := \frac{t\_1}{y \cdot \left(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right) + i}\\ \mathbf{if}\;t\_2 \leq -1 \cdot 10^{-308}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;t\_2 \leq \infty:\\ \;\;\;\;\frac{1}{\frac{i}{t\_1} + \left(c \cdot \frac{y}{t\_1} + {y}^{2} \cdot \frac{\mathsf{fma}\left(y, y + a, b\right)}{t\_1}\right)}\\ \mathbf{else}:\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (let* ((t_1
         (+
          t
          (* y (+ (* y (+ (* y (+ (* x y) z)) 27464.7644705)) 230661.510616))))
        (t_2 (/ t_1 (+ (* y (+ (* y (+ (* y (+ y a)) b)) c)) i))))
   (if (<= t_2 -1e-308)
     t_2
     (if (<= t_2 INFINITY)
       (/
        1.0
        (+
         (/ i t_1)
         (+ (* c (/ y t_1)) (* (pow y 2.0) (/ (fma y (+ y a) b) t_1)))))
       (+ x (- (/ z y) (* a (/ x y))))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double t_1 = t + (y * ((y * ((y * ((x * y) + z)) + 27464.7644705)) + 230661.510616));
	double t_2 = t_1 / ((y * ((y * ((y * (y + a)) + b)) + c)) + i);
	double tmp;
	if (t_2 <= -1e-308) {
		tmp = t_2;
	} else if (t_2 <= ((double) INFINITY)) {
		tmp = 1.0 / ((i / t_1) + ((c * (y / t_1)) + (pow(y, 2.0) * (fma(y, (y + a), b) / t_1))));
	} else {
		tmp = x + ((z / y) - (a * (x / y)));
	}
	return tmp;
}
function code(x, y, z, t, a, b, c, i)
	t_1 = Float64(t + Float64(y * Float64(Float64(y * Float64(Float64(y * Float64(Float64(x * y) + z)) + 27464.7644705)) + 230661.510616)))
	t_2 = Float64(t_1 / Float64(Float64(y * Float64(Float64(y * Float64(Float64(y * Float64(y + a)) + b)) + c)) + i))
	tmp = 0.0
	if (t_2 <= -1e-308)
		tmp = t_2;
	elseif (t_2 <= Inf)
		tmp = Float64(1.0 / Float64(Float64(i / t_1) + Float64(Float64(c * Float64(y / t_1)) + Float64((y ^ 2.0) * Float64(fma(y, Float64(y + a), b) / t_1)))));
	else
		tmp = Float64(x + Float64(Float64(z / y) - Float64(a * Float64(x / y))));
	end
	return tmp
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := Block[{t$95$1 = N[(t + N[(y * N[(N[(y * N[(N[(y * N[(N[(x * y), $MachinePrecision] + z), $MachinePrecision]), $MachinePrecision] + 27464.7644705), $MachinePrecision]), $MachinePrecision] + 230661.510616), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(t$95$1 / N[(N[(y * N[(N[(y * N[(N[(y * N[(y + a), $MachinePrecision]), $MachinePrecision] + b), $MachinePrecision]), $MachinePrecision] + c), $MachinePrecision]), $MachinePrecision] + i), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$2, -1e-308], t$95$2, If[LessEqual[t$95$2, Infinity], N[(1.0 / N[(N[(i / t$95$1), $MachinePrecision] + N[(N[(c * N[(y / t$95$1), $MachinePrecision]), $MachinePrecision] + N[(N[Power[y, 2.0], $MachinePrecision] * N[(N[(y * N[(y + a), $MachinePrecision] + b), $MachinePrecision] / t$95$1), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + N[(N[(z / y), $MachinePrecision] - N[(a * N[(x / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := t + y \cdot \left(y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616\right)\\
t_2 := \frac{t\_1}{y \cdot \left(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right) + i}\\
\mathbf{if}\;t\_2 \leq -1 \cdot 10^{-308}:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;t\_2 \leq \infty:\\
\;\;\;\;\frac{1}{\frac{i}{t\_1} + \left(c \cdot \frac{y}{t\_1} + {y}^{2} \cdot \frac{\mathsf{fma}\left(y, y + a, b\right)}{t\_1}\right)}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if (/.f64 (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 (*.f64 x y) z) y) #s(literal 54929528941/2000000 binary64)) y) #s(literal 28832688827/125000 binary64)) y) t) (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 y a) y) b) y) c) y) i)) < -9.9999999999999991e-309

    1. Initial program 93.9%

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

    if -9.9999999999999991e-309 < (/.f64 (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 (*.f64 x y) z) y) #s(literal 54929528941/2000000 binary64)) y) #s(literal 28832688827/125000 binary64)) y) t) (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 y a) y) b) y) c) y) i)) < +inf.0

    1. Initial program 88.0%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Step-by-step derivation
      1. clear-num87.9%

        \[\leadsto \color{blue}{\frac{1}{\frac{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i}{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}}} \]
      2. inv-pow87.9%

        \[\leadsto \color{blue}{{\left(\frac{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i}{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}\right)}^{-1}} \]
    4. Applied egg-rr87.9%

      \[\leadsto \color{blue}{{\left(\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(x, y, z\right), 27464.7644705\right), 230661.510616\right), t\right)}\right)}^{-1}} \]
    5. Step-by-step derivation
      1. unpow-187.9%

        \[\leadsto \color{blue}{\frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(x, y, z\right), 27464.7644705\right), 230661.510616\right), t\right)}}} \]
      2. fma-undefine87.9%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{x \cdot y + z}, 27464.7644705\right), 230661.510616\right), t\right)}} \]
      3. *-commutative87.9%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{y \cdot x} + z, 27464.7644705\right), 230661.510616\right), t\right)}} \]
      4. fma-define87.9%

        \[\leadsto \frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \color{blue}{\mathsf{fma}\left(y, x, z\right)}, 27464.7644705\right), 230661.510616\right), t\right)}} \]
    6. Simplified87.9%

      \[\leadsto \color{blue}{\frac{1}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right), i\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, \mathsf{fma}\left(y, x, z\right), 27464.7644705\right), 230661.510616\right), t\right)}}} \]
    7. Taylor expanded in c around 0 86.9%

      \[\leadsto \frac{1}{\color{blue}{\frac{i}{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + x \cdot y\right)\right)\right)} + \left(\frac{c \cdot y}{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + x \cdot y\right)\right)\right)} + \frac{{y}^{2} \cdot \left(b + y \cdot \left(a + y\right)\right)}{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + x \cdot y\right)\right)\right)}\right)}} \]
    8. Step-by-step derivation
      1. associate-/l*85.6%

        \[\leadsto \frac{1}{\frac{i}{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + x \cdot y\right)\right)\right)} + \left(\color{blue}{c \cdot \frac{y}{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + x \cdot y\right)\right)\right)}} + \frac{{y}^{2} \cdot \left(b + y \cdot \left(a + y\right)\right)}{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + x \cdot y\right)\right)\right)}\right)} \]
      2. associate-/l*93.3%

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

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

        \[\leadsto \frac{1}{\frac{i}{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + x \cdot y\right)\right)\right)} + \left(c \cdot \frac{y}{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + x \cdot y\right)\right)\right)} + {y}^{2} \cdot \frac{y \cdot \color{blue}{\left(y + a\right)} + b}{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + x \cdot y\right)\right)\right)}\right)} \]
      5. fma-undefine93.3%

        \[\leadsto \frac{1}{\frac{i}{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + x \cdot y\right)\right)\right)} + \left(c \cdot \frac{y}{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + x \cdot y\right)\right)\right)} + {y}^{2} \cdot \frac{\color{blue}{\mathsf{fma}\left(y, y + a, b\right)}}{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + x \cdot y\right)\right)\right)}\right)} \]
    9. Simplified93.3%

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

    if +inf.0 < (/.f64 (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 (*.f64 x y) z) y) #s(literal 54929528941/2000000 binary64)) y) #s(literal 28832688827/125000 binary64)) 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. Add Preprocessing
    3. Taylor expanded in y around inf 63.0%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    4. Step-by-step derivation
      1. associate--l+63.0%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. associate-/l*67.3%

        \[\leadsto x + \left(\frac{z}{y} - \color{blue}{a \cdot \frac{x}{y}}\right) \]
    5. Simplified67.3%

      \[\leadsto \color{blue}{x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification84.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{t + y \cdot \left(y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616\right)}{y \cdot \left(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right) + i} \leq -1 \cdot 10^{-308}:\\ \;\;\;\;\frac{t + y \cdot \left(y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616\right)}{y \cdot \left(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right) + i}\\ \mathbf{elif}\;\frac{t + y \cdot \left(y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616\right)}{y \cdot \left(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right) + i} \leq \infty:\\ \;\;\;\;\frac{1}{\frac{i}{t + y \cdot \left(y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616\right)} + \left(c \cdot \frac{y}{t + y \cdot \left(y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616\right)} + {y}^{2} \cdot \frac{\mathsf{fma}\left(y, y + a, b\right)}{t + y \cdot \left(y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616\right)}\right)}\\ \mathbf{else}:\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 3: 77.3% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := y \cdot \frac{y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616}{i + y \cdot \left(c + y \cdot b\right)}\\ t_2 := x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ t_3 := y \cdot \left(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right) + i\\ \mathbf{if}\;y \leq -7.2 \cdot 10^{+27}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;y \leq -4 \cdot 10^{-38}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;y \leq 8.5 \cdot 10^{-18}:\\ \;\;\;\;\frac{t + y \cdot 230661.510616}{t\_3}\\ \mathbf{elif}\;y \leq 1.45 \cdot 10^{+40}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;y \leq 4.5 \cdot 10^{+57}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot 27464.7644705\right)}{t\_3}\\ \mathbf{else}:\\ \;\;\;\;t\_2\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (let* ((t_1
         (*
          y
          (/
           (+ (* y (+ (* y (+ (* x y) z)) 27464.7644705)) 230661.510616)
           (+ i (* y (+ c (* y b)))))))
        (t_2 (+ x (- (/ z y) (* a (/ x y)))))
        (t_3 (+ (* y (+ (* y (+ (* y (+ y a)) b)) c)) i)))
   (if (<= y -7.2e+27)
     t_2
     (if (<= y -4e-38)
       t_1
       (if (<= y 8.5e-18)
         (/ (+ t (* y 230661.510616)) t_3)
         (if (<= y 1.45e+40)
           t_1
           (if (<= y 4.5e+57)
             (/ (+ t (* y (+ 230661.510616 (* y 27464.7644705)))) t_3)
             t_2)))))))
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) / (i + (y * (c + (y * b)))));
	double t_2 = x + ((z / y) - (a * (x / y)));
	double t_3 = (y * ((y * ((y * (y + a)) + b)) + c)) + i;
	double tmp;
	if (y <= -7.2e+27) {
		tmp = t_2;
	} else if (y <= -4e-38) {
		tmp = t_1;
	} else if (y <= 8.5e-18) {
		tmp = (t + (y * 230661.510616)) / t_3;
	} else if (y <= 1.45e+40) {
		tmp = t_1;
	} else if (y <= 4.5e+57) {
		tmp = (t + (y * (230661.510616 + (y * 27464.7644705)))) / t_3;
	} 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) :: t_3
    real(8) :: tmp
    t_1 = y * (((y * ((y * ((x * y) + z)) + 27464.7644705d0)) + 230661.510616d0) / (i + (y * (c + (y * b)))))
    t_2 = x + ((z / y) - (a * (x / y)))
    t_3 = (y * ((y * ((y * (y + a)) + b)) + c)) + i
    if (y <= (-7.2d+27)) then
        tmp = t_2
    else if (y <= (-4d-38)) then
        tmp = t_1
    else if (y <= 8.5d-18) then
        tmp = (t + (y * 230661.510616d0)) / t_3
    else if (y <= 1.45d+40) then
        tmp = t_1
    else if (y <= 4.5d+57) then
        tmp = (t + (y * (230661.510616d0 + (y * 27464.7644705d0)))) / t_3
    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 = y * (((y * ((y * ((x * y) + z)) + 27464.7644705)) + 230661.510616) / (i + (y * (c + (y * b)))));
	double t_2 = x + ((z / y) - (a * (x / y)));
	double t_3 = (y * ((y * ((y * (y + a)) + b)) + c)) + i;
	double tmp;
	if (y <= -7.2e+27) {
		tmp = t_2;
	} else if (y <= -4e-38) {
		tmp = t_1;
	} else if (y <= 8.5e-18) {
		tmp = (t + (y * 230661.510616)) / t_3;
	} else if (y <= 1.45e+40) {
		tmp = t_1;
	} else if (y <= 4.5e+57) {
		tmp = (t + (y * (230661.510616 + (y * 27464.7644705)))) / t_3;
	} else {
		tmp = t_2;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	t_1 = y * (((y * ((y * ((x * y) + z)) + 27464.7644705)) + 230661.510616) / (i + (y * (c + (y * b)))))
	t_2 = x + ((z / y) - (a * (x / y)))
	t_3 = (y * ((y * ((y * (y + a)) + b)) + c)) + i
	tmp = 0
	if y <= -7.2e+27:
		tmp = t_2
	elif y <= -4e-38:
		tmp = t_1
	elif y <= 8.5e-18:
		tmp = (t + (y * 230661.510616)) / t_3
	elif y <= 1.45e+40:
		tmp = t_1
	elif y <= 4.5e+57:
		tmp = (t + (y * (230661.510616 + (y * 27464.7644705)))) / t_3
	else:
		tmp = t_2
	return tmp
function code(x, y, z, t, a, b, c, i)
	t_1 = Float64(y * Float64(Float64(Float64(y * Float64(Float64(y * Float64(Float64(x * y) + z)) + 27464.7644705)) + 230661.510616) / Float64(i + Float64(y * Float64(c + Float64(y * b))))))
	t_2 = Float64(x + Float64(Float64(z / y) - Float64(a * Float64(x / y))))
	t_3 = Float64(Float64(y * Float64(Float64(y * Float64(Float64(y * Float64(y + a)) + b)) + c)) + i)
	tmp = 0.0
	if (y <= -7.2e+27)
		tmp = t_2;
	elseif (y <= -4e-38)
		tmp = t_1;
	elseif (y <= 8.5e-18)
		tmp = Float64(Float64(t + Float64(y * 230661.510616)) / t_3);
	elseif (y <= 1.45e+40)
		tmp = t_1;
	elseif (y <= 4.5e+57)
		tmp = Float64(Float64(t + Float64(y * Float64(230661.510616 + Float64(y * 27464.7644705)))) / t_3);
	else
		tmp = t_2;
	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) / (i + (y * (c + (y * b)))));
	t_2 = x + ((z / y) - (a * (x / y)));
	t_3 = (y * ((y * ((y * (y + a)) + b)) + c)) + i;
	tmp = 0.0;
	if (y <= -7.2e+27)
		tmp = t_2;
	elseif (y <= -4e-38)
		tmp = t_1;
	elseif (y <= 8.5e-18)
		tmp = (t + (y * 230661.510616)) / t_3;
	elseif (y <= 1.45e+40)
		tmp = t_1;
	elseif (y <= 4.5e+57)
		tmp = (t + (y * (230661.510616 + (y * 27464.7644705)))) / t_3;
	else
		tmp = t_2;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := Block[{t$95$1 = N[(y * N[(N[(N[(y * N[(N[(y * N[(N[(x * y), $MachinePrecision] + z), $MachinePrecision]), $MachinePrecision] + 27464.7644705), $MachinePrecision]), $MachinePrecision] + 230661.510616), $MachinePrecision] / N[(i + N[(y * N[(c + N[(y * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(x + N[(N[(z / y), $MachinePrecision] - N[(a * N[(x / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$3 = N[(N[(y * N[(N[(y * N[(N[(y * N[(y + a), $MachinePrecision]), $MachinePrecision] + b), $MachinePrecision]), $MachinePrecision] + c), $MachinePrecision]), $MachinePrecision] + i), $MachinePrecision]}, If[LessEqual[y, -7.2e+27], t$95$2, If[LessEqual[y, -4e-38], t$95$1, If[LessEqual[y, 8.5e-18], N[(N[(t + N[(y * 230661.510616), $MachinePrecision]), $MachinePrecision] / t$95$3), $MachinePrecision], If[LessEqual[y, 1.45e+40], t$95$1, If[LessEqual[y, 4.5e+57], N[(N[(t + N[(y * N[(230661.510616 + N[(y * 27464.7644705), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / t$95$3), $MachinePrecision], t$95$2]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := y \cdot \frac{y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616}{i + y \cdot \left(c + y \cdot b\right)}\\
t_2 := x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\
t_3 := y \cdot \left(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right) + i\\
\mathbf{if}\;y \leq -7.2 \cdot 10^{+27}:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;y \leq -4 \cdot 10^{-38}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;y \leq 8.5 \cdot 10^{-18}:\\
\;\;\;\;\frac{t + y \cdot 230661.510616}{t\_3}\\

\mathbf{elif}\;y \leq 1.45 \cdot 10^{+40}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;y \leq 4.5 \cdot 10^{+57}:\\
\;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot 27464.7644705\right)}{t\_3}\\

\mathbf{else}:\\
\;\;\;\;t\_2\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if y < -7.19999999999999966e27 or 4.49999999999999996e57 < y

    1. Initial program 6.0%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 59.3%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    4. Step-by-step derivation
      1. associate--l+59.3%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. associate-/l*62.8%

        \[\leadsto x + \left(\frac{z}{y} - \color{blue}{a \cdot \frac{x}{y}}\right) \]
    5. Simplified62.8%

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

    if -7.19999999999999966e27 < y < -3.9999999999999998e-38 or 8.4999999999999995e-18 < y < 1.45000000000000009e40

    1. Initial program 89.8%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 66.1%

      \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{b \cdot y} + c\right) \cdot y + i} \]
    4. Step-by-step derivation
      1. *-commutative66.1%

        \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{y \cdot b} + c\right) \cdot y + i} \]
    5. Simplified66.1%

      \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{y \cdot b} + c\right) \cdot y + i} \]
    6. Taylor expanded in t around 0 62.5%

      \[\leadsto \color{blue}{\frac{y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + x \cdot y\right)\right)\right)}{i + y \cdot \left(c + b \cdot y\right)}} \]
    7. Step-by-step derivation
      1. associate-/l*67.4%

        \[\leadsto \color{blue}{y \cdot \frac{230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + x \cdot y\right)\right)}{i + y \cdot \left(c + b \cdot y\right)}} \]
    8. Simplified67.4%

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

    if -3.9999999999999998e-38 < y < 8.4999999999999995e-18

    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. Add Preprocessing
    3. Taylor expanded in y around 0 93.6%

      \[\leadsto \frac{\color{blue}{230661.510616 \cdot y} + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Step-by-step derivation
      1. *-commutative88.0%

        \[\leadsto \frac{\color{blue}{y \cdot 230661.510616} + t}{\left(y \cdot b + c\right) \cdot y + i} \]
    5. Simplified93.6%

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

    if 1.45000000000000009e40 < y < 4.49999999999999996e57

    1. Initial program 52.1%

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

      \[\leadsto \frac{\left(\color{blue}{27464.7644705 \cdot y} + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Step-by-step derivation
      1. *-commutative3.8%

        \[\leadsto \frac{\left(\color{blue}{y \cdot 27464.7644705} + 230661.510616\right) \cdot y + t}{\left(y \cdot b + c\right) \cdot y + i} \]
    5. Simplified52.1%

      \[\leadsto \frac{\left(\color{blue}{y \cdot 27464.7644705} + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification77.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -7.2 \cdot 10^{+27}:\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{elif}\;y \leq -4 \cdot 10^{-38}:\\ \;\;\;\;y \cdot \frac{y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616}{i + y \cdot \left(c + y \cdot b\right)}\\ \mathbf{elif}\;y \leq 8.5 \cdot 10^{-18}:\\ \;\;\;\;\frac{t + y \cdot 230661.510616}{y \cdot \left(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right) + i}\\ \mathbf{elif}\;y \leq 1.45 \cdot 10^{+40}:\\ \;\;\;\;y \cdot \frac{y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616}{i + y \cdot \left(c + y \cdot b\right)}\\ \mathbf{elif}\;y \leq 4.5 \cdot 10^{+57}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot 27464.7644705\right)}{y \cdot \left(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right) + i}\\ \mathbf{else}:\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 4: 80.1% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{t + y \cdot \left(y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616\right)}{i + y \cdot \left(c + y \cdot b\right)}\\ t_2 := x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{if}\;y \leq -2.9 \cdot 10^{+27}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;y \leq -3.2 \cdot 10^{-61}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;y \leq 2 \cdot 10^{-133}:\\ \;\;\;\;\frac{t + y \cdot 230661.510616}{y \cdot \left(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right) + i}\\ \mathbf{elif}\;y \leq 8.2 \cdot 10^{+50}:\\ \;\;\;\;t\_1\\ \mathbf{else}:\\ \;\;\;\;t\_2\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (let* ((t_1
         (/
          (+
           t
           (* y (+ (* y (+ (* y (+ (* x y) z)) 27464.7644705)) 230661.510616)))
          (+ i (* y (+ c (* y b))))))
        (t_2 (+ x (- (/ z y) (* a (/ x y))))))
   (if (<= y -2.9e+27)
     t_2
     (if (<= y -3.2e-61)
       t_1
       (if (<= y 2e-133)
         (/
          (+ t (* y 230661.510616))
          (+ (* y (+ (* y (+ (* y (+ y a)) b)) c)) i))
         (if (<= y 8.2e+50) 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 + (y * ((y * ((y * ((x * y) + z)) + 27464.7644705)) + 230661.510616))) / (i + (y * (c + (y * b))));
	double t_2 = x + ((z / y) - (a * (x / y)));
	double tmp;
	if (y <= -2.9e+27) {
		tmp = t_2;
	} else if (y <= -3.2e-61) {
		tmp = t_1;
	} else if (y <= 2e-133) {
		tmp = (t + (y * 230661.510616)) / ((y * ((y * ((y * (y + a)) + b)) + c)) + i);
	} else if (y <= 8.2e+50) {
		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 + (y * ((y * ((y * ((x * y) + z)) + 27464.7644705d0)) + 230661.510616d0))) / (i + (y * (c + (y * b))))
    t_2 = x + ((z / y) - (a * (x / y)))
    if (y <= (-2.9d+27)) then
        tmp = t_2
    else if (y <= (-3.2d-61)) then
        tmp = t_1
    else if (y <= 2d-133) then
        tmp = (t + (y * 230661.510616d0)) / ((y * ((y * ((y * (y + a)) + b)) + c)) + i)
    else if (y <= 8.2d+50) 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 + (y * ((y * ((y * ((x * y) + z)) + 27464.7644705)) + 230661.510616))) / (i + (y * (c + (y * b))));
	double t_2 = x + ((z / y) - (a * (x / y)));
	double tmp;
	if (y <= -2.9e+27) {
		tmp = t_2;
	} else if (y <= -3.2e-61) {
		tmp = t_1;
	} else if (y <= 2e-133) {
		tmp = (t + (y * 230661.510616)) / ((y * ((y * ((y * (y + a)) + b)) + c)) + i);
	} else if (y <= 8.2e+50) {
		tmp = t_1;
	} else {
		tmp = t_2;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	t_1 = (t + (y * ((y * ((y * ((x * y) + z)) + 27464.7644705)) + 230661.510616))) / (i + (y * (c + (y * b))))
	t_2 = x + ((z / y) - (a * (x / y)))
	tmp = 0
	if y <= -2.9e+27:
		tmp = t_2
	elif y <= -3.2e-61:
		tmp = t_1
	elif y <= 2e-133:
		tmp = (t + (y * 230661.510616)) / ((y * ((y * ((y * (y + a)) + b)) + c)) + i)
	elif y <= 8.2e+50:
		tmp = t_1
	else:
		tmp = t_2
	return tmp
function code(x, y, z, t, a, b, c, i)
	t_1 = Float64(Float64(t + Float64(y * Float64(Float64(y * Float64(Float64(y * Float64(Float64(x * y) + z)) + 27464.7644705)) + 230661.510616))) / Float64(i + Float64(y * Float64(c + Float64(y * b)))))
	t_2 = Float64(x + Float64(Float64(z / y) - Float64(a * Float64(x / y))))
	tmp = 0.0
	if (y <= -2.9e+27)
		tmp = t_2;
	elseif (y <= -3.2e-61)
		tmp = t_1;
	elseif (y <= 2e-133)
		tmp = Float64(Float64(t + Float64(y * 230661.510616)) / Float64(Float64(y * Float64(Float64(y * Float64(Float64(y * Float64(y + a)) + b)) + c)) + i));
	elseif (y <= 8.2e+50)
		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 + (y * ((y * ((y * ((x * y) + z)) + 27464.7644705)) + 230661.510616))) / (i + (y * (c + (y * b))));
	t_2 = x + ((z / y) - (a * (x / y)));
	tmp = 0.0;
	if (y <= -2.9e+27)
		tmp = t_2;
	elseif (y <= -3.2e-61)
		tmp = t_1;
	elseif (y <= 2e-133)
		tmp = (t + (y * 230661.510616)) / ((y * ((y * ((y * (y + a)) + b)) + c)) + i);
	elseif (y <= 8.2e+50)
		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[(N[(t + N[(y * N[(N[(y * N[(N[(y * N[(N[(x * y), $MachinePrecision] + z), $MachinePrecision]), $MachinePrecision] + 27464.7644705), $MachinePrecision]), $MachinePrecision] + 230661.510616), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(i + N[(y * N[(c + N[(y * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(x + N[(N[(z / y), $MachinePrecision] - N[(a * N[(x / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[y, -2.9e+27], t$95$2, If[LessEqual[y, -3.2e-61], t$95$1, If[LessEqual[y, 2e-133], N[(N[(t + N[(y * 230661.510616), $MachinePrecision]), $MachinePrecision] / N[(N[(y * N[(N[(y * N[(N[(y * N[(y + a), $MachinePrecision]), $MachinePrecision] + b), $MachinePrecision]), $MachinePrecision] + c), $MachinePrecision]), $MachinePrecision] + i), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 8.2e+50], t$95$1, t$95$2]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \frac{t + y \cdot \left(y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616\right)}{i + y \cdot \left(c + y \cdot b\right)}\\
t_2 := x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\
\mathbf{if}\;y \leq -2.9 \cdot 10^{+27}:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;y \leq -3.2 \cdot 10^{-61}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;y \leq 2 \cdot 10^{-133}:\\
\;\;\;\;\frac{t + y \cdot 230661.510616}{y \cdot \left(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right) + i}\\

\mathbf{elif}\;y \leq 8.2 \cdot 10^{+50}:\\
\;\;\;\;t\_1\\

\mathbf{else}:\\
\;\;\;\;t\_2\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -2.9000000000000001e27 or 8.2000000000000002e50 < y

    1. Initial program 6.8%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 58.8%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    4. Step-by-step derivation
      1. associate--l+58.8%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. associate-/l*62.3%

        \[\leadsto x + \left(\frac{z}{y} - \color{blue}{a \cdot \frac{x}{y}}\right) \]
    5. Simplified62.3%

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

    if -2.9000000000000001e27 < y < -3.2000000000000001e-61 or 2.0000000000000001e-133 < y < 8.2000000000000002e50

    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. Add Preprocessing
    3. Taylor expanded in y around 0 82.1%

      \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{b \cdot y} + c\right) \cdot y + i} \]
    4. Step-by-step derivation
      1. *-commutative82.1%

        \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{y \cdot b} + c\right) \cdot y + i} \]
    5. Simplified82.1%

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

    if -3.2000000000000001e-61 < y < 2.0000000000000001e-133

    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. Add Preprocessing
    3. Taylor expanded in y around 0 99.8%

      \[\leadsto \frac{\color{blue}{230661.510616 \cdot y} + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Step-by-step derivation
      1. *-commutative94.3%

        \[\leadsto \frac{\color{blue}{y \cdot 230661.510616} + t}{\left(y \cdot b + c\right) \cdot y + i} \]
    5. Simplified99.8%

      \[\leadsto \frac{\color{blue}{y \cdot 230661.510616} + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification79.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -2.9 \cdot 10^{+27}:\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{elif}\;y \leq -3.2 \cdot 10^{-61}:\\ \;\;\;\;\frac{t + y \cdot \left(y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616\right)}{i + y \cdot \left(c + y \cdot b\right)}\\ \mathbf{elif}\;y \leq 2 \cdot 10^{-133}:\\ \;\;\;\;\frac{t + y \cdot 230661.510616}{y \cdot \left(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right) + i}\\ \mathbf{elif}\;y \leq 8.2 \cdot 10^{+50}:\\ \;\;\;\;\frac{t + y \cdot \left(y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616\right)}{i + y \cdot \left(c + y \cdot b\right)}\\ \mathbf{else}:\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 5: 77.4% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := y \cdot \frac{y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616}{i + y \cdot \left(c + y \cdot b\right)}\\ t_2 := x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{if}\;y \leq -4.5 \cdot 10^{+27}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;y \leq -4.5 \cdot 10^{-38}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;y \leq 1.1 \cdot 10^{-17}:\\ \;\;\;\;\frac{t + y \cdot 230661.510616}{y \cdot \left(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right) + i}\\ \mathbf{elif}\;y \leq 7.4 \cdot 10^{+43}:\\ \;\;\;\;t\_1\\ \mathbf{else}:\\ \;\;\;\;t\_2\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (let* ((t_1
         (*
          y
          (/
           (+ (* y (+ (* y (+ (* x y) z)) 27464.7644705)) 230661.510616)
           (+ i (* y (+ c (* y b)))))))
        (t_2 (+ x (- (/ z y) (* a (/ x y))))))
   (if (<= y -4.5e+27)
     t_2
     (if (<= y -4.5e-38)
       t_1
       (if (<= y 1.1e-17)
         (/
          (+ t (* y 230661.510616))
          (+ (* y (+ (* y (+ (* y (+ y a)) b)) c)) i))
         (if (<= y 7.4e+43) 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 = y * (((y * ((y * ((x * y) + z)) + 27464.7644705)) + 230661.510616) / (i + (y * (c + (y * b)))));
	double t_2 = x + ((z / y) - (a * (x / y)));
	double tmp;
	if (y <= -4.5e+27) {
		tmp = t_2;
	} else if (y <= -4.5e-38) {
		tmp = t_1;
	} else if (y <= 1.1e-17) {
		tmp = (t + (y * 230661.510616)) / ((y * ((y * ((y * (y + a)) + b)) + c)) + i);
	} else if (y <= 7.4e+43) {
		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 = y * (((y * ((y * ((x * y) + z)) + 27464.7644705d0)) + 230661.510616d0) / (i + (y * (c + (y * b)))))
    t_2 = x + ((z / y) - (a * (x / y)))
    if (y <= (-4.5d+27)) then
        tmp = t_2
    else if (y <= (-4.5d-38)) then
        tmp = t_1
    else if (y <= 1.1d-17) then
        tmp = (t + (y * 230661.510616d0)) / ((y * ((y * ((y * (y + a)) + b)) + c)) + i)
    else if (y <= 7.4d+43) 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 = y * (((y * ((y * ((x * y) + z)) + 27464.7644705)) + 230661.510616) / (i + (y * (c + (y * b)))));
	double t_2 = x + ((z / y) - (a * (x / y)));
	double tmp;
	if (y <= -4.5e+27) {
		tmp = t_2;
	} else if (y <= -4.5e-38) {
		tmp = t_1;
	} else if (y <= 1.1e-17) {
		tmp = (t + (y * 230661.510616)) / ((y * ((y * ((y * (y + a)) + b)) + c)) + i);
	} else if (y <= 7.4e+43) {
		tmp = t_1;
	} else {
		tmp = t_2;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	t_1 = y * (((y * ((y * ((x * y) + z)) + 27464.7644705)) + 230661.510616) / (i + (y * (c + (y * b)))))
	t_2 = x + ((z / y) - (a * (x / y)))
	tmp = 0
	if y <= -4.5e+27:
		tmp = t_2
	elif y <= -4.5e-38:
		tmp = t_1
	elif y <= 1.1e-17:
		tmp = (t + (y * 230661.510616)) / ((y * ((y * ((y * (y + a)) + b)) + c)) + i)
	elif y <= 7.4e+43:
		tmp = t_1
	else:
		tmp = t_2
	return tmp
function code(x, y, z, t, a, b, c, i)
	t_1 = Float64(y * Float64(Float64(Float64(y * Float64(Float64(y * Float64(Float64(x * y) + z)) + 27464.7644705)) + 230661.510616) / Float64(i + Float64(y * Float64(c + Float64(y * b))))))
	t_2 = Float64(x + Float64(Float64(z / y) - Float64(a * Float64(x / y))))
	tmp = 0.0
	if (y <= -4.5e+27)
		tmp = t_2;
	elseif (y <= -4.5e-38)
		tmp = t_1;
	elseif (y <= 1.1e-17)
		tmp = Float64(Float64(t + Float64(y * 230661.510616)) / Float64(Float64(y * Float64(Float64(y * Float64(Float64(y * Float64(y + a)) + b)) + c)) + i));
	elseif (y <= 7.4e+43)
		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 = y * (((y * ((y * ((x * y) + z)) + 27464.7644705)) + 230661.510616) / (i + (y * (c + (y * b)))));
	t_2 = x + ((z / y) - (a * (x / y)));
	tmp = 0.0;
	if (y <= -4.5e+27)
		tmp = t_2;
	elseif (y <= -4.5e-38)
		tmp = t_1;
	elseif (y <= 1.1e-17)
		tmp = (t + (y * 230661.510616)) / ((y * ((y * ((y * (y + a)) + b)) + c)) + i);
	elseif (y <= 7.4e+43)
		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[(y * N[(N[(N[(y * N[(N[(y * N[(N[(x * y), $MachinePrecision] + z), $MachinePrecision]), $MachinePrecision] + 27464.7644705), $MachinePrecision]), $MachinePrecision] + 230661.510616), $MachinePrecision] / N[(i + N[(y * N[(c + N[(y * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(x + N[(N[(z / y), $MachinePrecision] - N[(a * N[(x / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[y, -4.5e+27], t$95$2, If[LessEqual[y, -4.5e-38], t$95$1, If[LessEqual[y, 1.1e-17], N[(N[(t + N[(y * 230661.510616), $MachinePrecision]), $MachinePrecision] / N[(N[(y * N[(N[(y * N[(N[(y * N[(y + a), $MachinePrecision]), $MachinePrecision] + b), $MachinePrecision]), $MachinePrecision] + c), $MachinePrecision]), $MachinePrecision] + i), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 7.4e+43], t$95$1, t$95$2]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := y \cdot \frac{y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616}{i + y \cdot \left(c + y \cdot b\right)}\\
t_2 := x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\
\mathbf{if}\;y \leq -4.5 \cdot 10^{+27}:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;y \leq -4.5 \cdot 10^{-38}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;y \leq 1.1 \cdot 10^{-17}:\\
\;\;\;\;\frac{t + y \cdot 230661.510616}{y \cdot \left(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right) + i}\\

\mathbf{elif}\;y \leq 7.4 \cdot 10^{+43}:\\
\;\;\;\;t\_1\\

\mathbf{else}:\\
\;\;\;\;t\_2\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -4.4999999999999999e27 or 7.4000000000000002e43 < y

    1. Initial program 6.8%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 58.8%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    4. Step-by-step derivation
      1. associate--l+58.8%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. associate-/l*62.3%

        \[\leadsto x + \left(\frac{z}{y} - \color{blue}{a \cdot \frac{x}{y}}\right) \]
    5. Simplified62.3%

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

    if -4.4999999999999999e27 < y < -4.50000000000000009e-38 or 1.1e-17 < y < 7.4000000000000002e43

    1. Initial program 85.8%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 63.2%

      \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{b \cdot y} + c\right) \cdot y + i} \]
    4. Step-by-step derivation
      1. *-commutative63.2%

        \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{y \cdot b} + c\right) \cdot y + i} \]
    5. Simplified63.2%

      \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{y \cdot b} + c\right) \cdot y + i} \]
    6. Taylor expanded in t around 0 59.8%

      \[\leadsto \color{blue}{\frac{y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + x \cdot y\right)\right)\right)}{i + y \cdot \left(c + b \cdot y\right)}} \]
    7. Step-by-step derivation
      1. associate-/l*64.4%

        \[\leadsto \color{blue}{y \cdot \frac{230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + x \cdot y\right)\right)}{i + y \cdot \left(c + b \cdot y\right)}} \]
    8. Simplified64.4%

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

    if -4.50000000000000009e-38 < y < 1.1e-17

    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. Add Preprocessing
    3. Taylor expanded in y around 0 93.6%

      \[\leadsto \frac{\color{blue}{230661.510616 \cdot y} + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Step-by-step derivation
      1. *-commutative88.0%

        \[\leadsto \frac{\color{blue}{y \cdot 230661.510616} + t}{\left(y \cdot b + c\right) \cdot y + i} \]
    5. Simplified93.6%

      \[\leadsto \frac{\color{blue}{y \cdot 230661.510616} + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification77.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -4.5 \cdot 10^{+27}:\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{elif}\;y \leq -4.5 \cdot 10^{-38}:\\ \;\;\;\;y \cdot \frac{y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616}{i + y \cdot \left(c + y \cdot b\right)}\\ \mathbf{elif}\;y \leq 1.1 \cdot 10^{-17}:\\ \;\;\;\;\frac{t + y \cdot 230661.510616}{y \cdot \left(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right) + i}\\ \mathbf{elif}\;y \leq 7.4 \cdot 10^{+43}:\\ \;\;\;\;y \cdot \frac{y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616}{i + y \cdot \left(c + y \cdot b\right)}\\ \mathbf{else}:\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 6: 85.0% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -3.4 \cdot 10^{+62} \lor \neg \left(y \leq 3.2 \cdot 10^{+63}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t + y \cdot \left(y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616\right)}{y \cdot \left(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right) + i}\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (or (<= y -3.4e+62) (not (<= y 3.2e+63)))
   (+ x (- (/ z y) (* a (/ x y))))
   (/
    (+ t (* y (+ (* y (+ (* y (+ (* x y) z)) 27464.7644705)) 230661.510616)))
    (+ (* y (+ (* y (+ (* y (+ y a)) b)) c)) i))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if ((y <= -3.4e+62) || !(y <= 3.2e+63)) {
		tmp = x + ((z / y) - (a * (x / y)));
	} else {
		tmp = (t + (y * ((y * ((y * ((x * y) + z)) + 27464.7644705)) + 230661.510616))) / ((y * ((y * ((y * (y + a)) + b)) + c)) + i);
	}
	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 <= (-3.4d+62)) .or. (.not. (y <= 3.2d+63))) then
        tmp = x + ((z / y) - (a * (x / y)))
    else
        tmp = (t + (y * ((y * ((y * ((x * y) + z)) + 27464.7644705d0)) + 230661.510616d0))) / ((y * ((y * ((y * (y + a)) + b)) + c)) + i)
    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 <= -3.4e+62) || !(y <= 3.2e+63)) {
		tmp = x + ((z / y) - (a * (x / y)));
	} else {
		tmp = (t + (y * ((y * ((y * ((x * y) + z)) + 27464.7644705)) + 230661.510616))) / ((y * ((y * ((y * (y + a)) + b)) + c)) + i);
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	tmp = 0
	if (y <= -3.4e+62) or not (y <= 3.2e+63):
		tmp = x + ((z / y) - (a * (x / y)))
	else:
		tmp = (t + (y * ((y * ((y * ((x * y) + z)) + 27464.7644705)) + 230661.510616))) / ((y * ((y * ((y * (y + a)) + b)) + c)) + i)
	return tmp
function code(x, y, z, t, a, b, c, i)
	tmp = 0.0
	if ((y <= -3.4e+62) || !(y <= 3.2e+63))
		tmp = Float64(x + Float64(Float64(z / y) - Float64(a * Float64(x / y))));
	else
		tmp = Float64(Float64(t + Float64(y * Float64(Float64(y * Float64(Float64(y * Float64(Float64(x * y) + z)) + 27464.7644705)) + 230661.510616))) / Float64(Float64(y * Float64(Float64(y * Float64(Float64(y * Float64(y + a)) + b)) + c)) + i));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	tmp = 0.0;
	if ((y <= -3.4e+62) || ~((y <= 3.2e+63)))
		tmp = x + ((z / y) - (a * (x / y)));
	else
		tmp = (t + (y * ((y * ((y * ((x * y) + z)) + 27464.7644705)) + 230661.510616))) / ((y * ((y * ((y * (y + a)) + b)) + c)) + i);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := If[Or[LessEqual[y, -3.4e+62], N[Not[LessEqual[y, 3.2e+63]], $MachinePrecision]], N[(x + N[(N[(z / y), $MachinePrecision] - N[(a * N[(x / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(t + N[(y * N[(N[(y * N[(N[(y * N[(N[(x * y), $MachinePrecision] + z), $MachinePrecision]), $MachinePrecision] + 27464.7644705), $MachinePrecision]), $MachinePrecision] + 230661.510616), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(N[(y * N[(N[(y * N[(N[(y * N[(y + a), $MachinePrecision]), $MachinePrecision] + b), $MachinePrecision]), $MachinePrecision] + c), $MachinePrecision]), $MachinePrecision] + i), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -3.4 \cdot 10^{+62} \lor \neg \left(y \leq 3.2 \cdot 10^{+63}\right):\\
\;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -3.40000000000000014e62 or 3.20000000000000011e63 < y

    1. Initial program 3.3%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 60.8%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    4. Step-by-step derivation
      1. associate--l+60.8%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. associate-/l*64.6%

        \[\leadsto x + \left(\frac{z}{y} - \color{blue}{a \cdot \frac{x}{y}}\right) \]
    5. Simplified64.6%

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

    if -3.40000000000000014e62 < y < 3.20000000000000011e63

    1. Initial program 94.7%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
  3. Recombined 2 regimes into one program.
  4. Final simplification82.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -3.4 \cdot 10^{+62} \lor \neg \left(y \leq 3.2 \cdot 10^{+63}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t + y \cdot \left(y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616\right)}{y \cdot \left(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right) + i}\\ \end{array} \]
  5. Add Preprocessing

Alternative 7: 81.4% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -7.2 \cdot 10^{+27} \lor \neg \left(y \leq 4 \cdot 10^{+53}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}{y \cdot \left(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right) + i}\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (or (<= y -7.2e+27) (not (<= y 4e+53)))
   (+ x (- (/ z y) (* a (/ x y))))
   (/
    (+ t (* y (+ 230661.510616 (* y (+ 27464.7644705 (* y z))))))
    (+ (* y (+ (* y (+ (* y (+ y a)) b)) c)) i))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if ((y <= -7.2e+27) || !(y <= 4e+53)) {
		tmp = x + ((z / y) - (a * (x / y)));
	} else {
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / ((y * ((y * ((y * (y + a)) + b)) + c)) + i);
	}
	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 <= (-7.2d+27)) .or. (.not. (y <= 4d+53))) then
        tmp = x + ((z / y) - (a * (x / y)))
    else
        tmp = (t + (y * (230661.510616d0 + (y * (27464.7644705d0 + (y * z)))))) / ((y * ((y * ((y * (y + a)) + b)) + c)) + i)
    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 <= -7.2e+27) || !(y <= 4e+53)) {
		tmp = x + ((z / y) - (a * (x / y)));
	} else {
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / ((y * ((y * ((y * (y + a)) + b)) + c)) + i);
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	tmp = 0
	if (y <= -7.2e+27) or not (y <= 4e+53):
		tmp = x + ((z / y) - (a * (x / y)))
	else:
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / ((y * ((y * ((y * (y + a)) + b)) + c)) + i)
	return tmp
function code(x, y, z, t, a, b, c, i)
	tmp = 0.0
	if ((y <= -7.2e+27) || !(y <= 4e+53))
		tmp = Float64(x + Float64(Float64(z / y) - Float64(a * Float64(x / y))));
	else
		tmp = Float64(Float64(t + Float64(y * Float64(230661.510616 + Float64(y * Float64(27464.7644705 + Float64(y * z)))))) / Float64(Float64(y * Float64(Float64(y * Float64(Float64(y * Float64(y + a)) + b)) + c)) + i));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	tmp = 0.0;
	if ((y <= -7.2e+27) || ~((y <= 4e+53)))
		tmp = x + ((z / y) - (a * (x / y)));
	else
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / ((y * ((y * ((y * (y + a)) + b)) + c)) + i);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := If[Or[LessEqual[y, -7.2e+27], N[Not[LessEqual[y, 4e+53]], $MachinePrecision]], N[(x + N[(N[(z / y), $MachinePrecision] - N[(a * N[(x / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(t + N[(y * N[(230661.510616 + N[(y * N[(27464.7644705 + N[(y * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(N[(y * N[(N[(y * N[(N[(y * N[(y + a), $MachinePrecision]), $MachinePrecision] + b), $MachinePrecision]), $MachinePrecision] + c), $MachinePrecision]), $MachinePrecision] + i), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -7.2 \cdot 10^{+27} \lor \neg \left(y \leq 4 \cdot 10^{+53}\right):\\
\;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -7.19999999999999966e27 or 4e53 < y

    1. Initial program 6.0%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 59.3%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    4. Step-by-step derivation
      1. associate--l+59.3%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. associate-/l*62.8%

        \[\leadsto x + \left(\frac{z}{y} - \color{blue}{a \cdot \frac{x}{y}}\right) \]
    5. Simplified62.8%

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

    if -7.19999999999999966e27 < y < 4e53

    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. Add Preprocessing
    3. Taylor expanded in x around 0 89.8%

      \[\leadsto \frac{\left(\color{blue}{y \cdot \left(27464.7644705 + y \cdot z\right)} + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification78.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -7.2 \cdot 10^{+27} \lor \neg \left(y \leq 4 \cdot 10^{+53}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}{y \cdot \left(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right) + i}\\ \end{array} \]
  5. Add Preprocessing

Alternative 8: 78.2% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -5.2 \cdot 10^{+26} \lor \neg \left(y \leq 2 \cdot 10^{+43}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}{i + y \cdot \left(c + y \cdot b\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (or (<= y -5.2e+26) (not (<= y 2e+43)))
   (+ x (- (/ z y) (* a (/ x y))))
   (/
    (+ t (* y (+ 230661.510616 (* y (+ 27464.7644705 (* y z))))))
    (+ i (* y (+ c (* y b)))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if ((y <= -5.2e+26) || !(y <= 2e+43)) {
		tmp = x + ((z / y) - (a * (x / y)));
	} else {
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / (i + (y * (c + (y * 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 <= (-5.2d+26)) .or. (.not. (y <= 2d+43))) then
        tmp = x + ((z / y) - (a * (x / y)))
    else
        tmp = (t + (y * (230661.510616d0 + (y * (27464.7644705d0 + (y * z)))))) / (i + (y * (c + (y * 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 <= -5.2e+26) || !(y <= 2e+43)) {
		tmp = x + ((z / y) - (a * (x / y)));
	} else {
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / (i + (y * (c + (y * b))));
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	tmp = 0
	if (y <= -5.2e+26) or not (y <= 2e+43):
		tmp = x + ((z / y) - (a * (x / y)))
	else:
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / (i + (y * (c + (y * b))))
	return tmp
function code(x, y, z, t, a, b, c, i)
	tmp = 0.0
	if ((y <= -5.2e+26) || !(y <= 2e+43))
		tmp = Float64(x + Float64(Float64(z / y) - Float64(a * Float64(x / y))));
	else
		tmp = Float64(Float64(t + Float64(y * Float64(230661.510616 + Float64(y * Float64(27464.7644705 + Float64(y * z)))))) / Float64(i + Float64(y * Float64(c + Float64(y * b)))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	tmp = 0.0;
	if ((y <= -5.2e+26) || ~((y <= 2e+43)))
		tmp = x + ((z / y) - (a * (x / y)));
	else
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / (i + (y * (c + (y * b))));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := If[Or[LessEqual[y, -5.2e+26], N[Not[LessEqual[y, 2e+43]], $MachinePrecision]], N[(x + N[(N[(z / y), $MachinePrecision] - N[(a * N[(x / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(t + N[(y * N[(230661.510616 + N[(y * N[(27464.7644705 + N[(y * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(i + N[(y * N[(c + N[(y * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -5.2 \cdot 10^{+26} \lor \neg \left(y \leq 2 \cdot 10^{+43}\right):\\
\;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -5.20000000000000004e26 or 2.00000000000000003e43 < y

    1. Initial program 6.8%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 58.8%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    4. Step-by-step derivation
      1. associate--l+58.8%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. associate-/l*62.3%

        \[\leadsto x + \left(\frac{z}{y} - \color{blue}{a \cdot \frac{x}{y}}\right) \]
    5. Simplified62.3%

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

    if -5.20000000000000004e26 < y < 2.00000000000000003e43

    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. Add Preprocessing
    3. Taylor expanded in y around 0 89.7%

      \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{b \cdot y} + c\right) \cdot y + i} \]
    4. Step-by-step derivation
      1. *-commutative89.7%

        \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{y \cdot b} + c\right) \cdot y + i} \]
    5. Simplified89.7%

      \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{y \cdot b} + c\right) \cdot y + i} \]
    6. Taylor expanded in x around 0 83.0%

      \[\leadsto \frac{\left(\color{blue}{y \cdot \left(27464.7644705 + y \cdot z\right)} + 230661.510616\right) \cdot y + t}{\left(y \cdot b + c\right) \cdot y + i} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification73.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -5.2 \cdot 10^{+26} \lor \neg \left(y \leq 2 \cdot 10^{+43}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}{i + y \cdot \left(c + y \cdot b\right)}\\ \end{array} \]
  5. Add Preprocessing

Alternative 9: 67.2% accurate, 1.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{t}{i + y \cdot \left(c + y \cdot b\right)}\\ t_2 := x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{if}\;y \leq -2.65 \cdot 10^{+20}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;y \leq 4.5 \cdot 10^{-135}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;y \leq 4 \cdot 10^{-95}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}{i}\\ \mathbf{elif}\;y \leq 3.35 \cdot 10^{+53}:\\ \;\;\;\;t\_1\\ \mathbf{else}:\\ \;\;\;\;t\_2\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (let* ((t_1 (/ t (+ i (* y (+ c (* y b))))))
        (t_2 (+ x (- (/ z y) (* a (/ x y))))))
   (if (<= y -2.65e+20)
     t_2
     (if (<= y 4.5e-135)
       t_1
       (if (<= y 4e-95)
         (/ (+ t (* y (+ 230661.510616 (* y (+ 27464.7644705 (* y z)))))) i)
         (if (<= y 3.35e+53) 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 * b))));
	double t_2 = x + ((z / y) - (a * (x / y)));
	double tmp;
	if (y <= -2.65e+20) {
		tmp = t_2;
	} else if (y <= 4.5e-135) {
		tmp = t_1;
	} else if (y <= 4e-95) {
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / i;
	} else if (y <= 3.35e+53) {
		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 * b))))
    t_2 = x + ((z / y) - (a * (x / y)))
    if (y <= (-2.65d+20)) then
        tmp = t_2
    else if (y <= 4.5d-135) then
        tmp = t_1
    else if (y <= 4d-95) then
        tmp = (t + (y * (230661.510616d0 + (y * (27464.7644705d0 + (y * z)))))) / i
    else if (y <= 3.35d+53) 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 * b))));
	double t_2 = x + ((z / y) - (a * (x / y)));
	double tmp;
	if (y <= -2.65e+20) {
		tmp = t_2;
	} else if (y <= 4.5e-135) {
		tmp = t_1;
	} else if (y <= 4e-95) {
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / i;
	} else if (y <= 3.35e+53) {
		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 * b))))
	t_2 = x + ((z / y) - (a * (x / y)))
	tmp = 0
	if y <= -2.65e+20:
		tmp = t_2
	elif y <= 4.5e-135:
		tmp = t_1
	elif y <= 4e-95:
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / i
	elif y <= 3.35e+53:
		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 * b)))))
	t_2 = Float64(x + Float64(Float64(z / y) - Float64(a * Float64(x / y))))
	tmp = 0.0
	if (y <= -2.65e+20)
		tmp = t_2;
	elseif (y <= 4.5e-135)
		tmp = t_1;
	elseif (y <= 4e-95)
		tmp = Float64(Float64(t + Float64(y * Float64(230661.510616 + Float64(y * Float64(27464.7644705 + Float64(y * z)))))) / i);
	elseif (y <= 3.35e+53)
		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 * b))));
	t_2 = x + ((z / y) - (a * (x / y)));
	tmp = 0.0;
	if (y <= -2.65e+20)
		tmp = t_2;
	elseif (y <= 4.5e-135)
		tmp = t_1;
	elseif (y <= 4e-95)
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / i;
	elseif (y <= 3.35e+53)
		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 * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(x + N[(N[(z / y), $MachinePrecision] - N[(a * N[(x / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[y, -2.65e+20], t$95$2, If[LessEqual[y, 4.5e-135], t$95$1, If[LessEqual[y, 4e-95], 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, 3.35e+53], t$95$1, t$95$2]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \frac{t}{i + y \cdot \left(c + y \cdot b\right)}\\
t_2 := x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\
\mathbf{if}\;y \leq -2.65 \cdot 10^{+20}:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;y \leq 4.5 \cdot 10^{-135}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;y \leq 4 \cdot 10^{-95}:\\
\;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}{i}\\

\mathbf{elif}\;y \leq 3.35 \cdot 10^{+53}:\\
\;\;\;\;t\_1\\

\mathbf{else}:\\
\;\;\;\;t\_2\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -2.65e20 or 3.3499999999999999e53 < y

    1. Initial program 6.8%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 58.3%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    4. Step-by-step derivation
      1. associate--l+58.3%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. associate-/l*61.8%

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

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

    if -2.65e20 < y < 4.49999999999999987e-135 or 3.99999999999999996e-95 < y < 3.3499999999999999e53

    1. Initial program 98.2%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 88.7%

      \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{b \cdot y} + c\right) \cdot y + i} \]
    4. Step-by-step derivation
      1. *-commutative88.7%

        \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{y \cdot b} + c\right) \cdot y + i} \]
    5. Simplified88.7%

      \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{y \cdot b} + c\right) \cdot y + i} \]
    6. Taylor expanded in t around inf 68.2%

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

    if 4.49999999999999987e-135 < y < 3.99999999999999996e-95

    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. Add Preprocessing
    3. Taylor expanded in i around inf 75.8%

      \[\leadsto \color{blue}{\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + x \cdot y\right)\right)\right)}{i}} \]
    4. Taylor expanded in x around 0 75.8%

      \[\leadsto \color{blue}{\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}{i}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification65.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -2.65 \cdot 10^{+20}:\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{elif}\;y \leq 4.5 \cdot 10^{-135}:\\ \;\;\;\;\frac{t}{i + y \cdot \left(c + y \cdot b\right)}\\ \mathbf{elif}\;y \leq 4 \cdot 10^{-95}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}{i}\\ \mathbf{elif}\;y \leq 3.35 \cdot 10^{+53}:\\ \;\;\;\;\frac{t}{i + y \cdot \left(c + y \cdot b\right)}\\ \mathbf{else}:\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 10: 76.5% accurate, 1.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -1.26 \cdot 10^{+19} \lor \neg \left(y \leq 5.8 \cdot 10^{+53}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t + y \cdot 230661.510616}{y \cdot \left(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right) + i}\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (or (<= y -1.26e+19) (not (<= y 5.8e+53)))
   (+ x (- (/ z y) (* a (/ x y))))
   (/ (+ t (* y 230661.510616)) (+ (* y (+ (* y (+ (* y (+ y a)) b)) c)) i))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if ((y <= -1.26e+19) || !(y <= 5.8e+53)) {
		tmp = x + ((z / y) - (a * (x / y)));
	} else {
		tmp = (t + (y * 230661.510616)) / ((y * ((y * ((y * (y + a)) + b)) + c)) + i);
	}
	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 <= (-1.26d+19)) .or. (.not. (y <= 5.8d+53))) then
        tmp = x + ((z / y) - (a * (x / y)))
    else
        tmp = (t + (y * 230661.510616d0)) / ((y * ((y * ((y * (y + a)) + b)) + c)) + i)
    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 <= -1.26e+19) || !(y <= 5.8e+53)) {
		tmp = x + ((z / y) - (a * (x / y)));
	} else {
		tmp = (t + (y * 230661.510616)) / ((y * ((y * ((y * (y + a)) + b)) + c)) + i);
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	tmp = 0
	if (y <= -1.26e+19) or not (y <= 5.8e+53):
		tmp = x + ((z / y) - (a * (x / y)))
	else:
		tmp = (t + (y * 230661.510616)) / ((y * ((y * ((y * (y + a)) + b)) + c)) + i)
	return tmp
function code(x, y, z, t, a, b, c, i)
	tmp = 0.0
	if ((y <= -1.26e+19) || !(y <= 5.8e+53))
		tmp = Float64(x + Float64(Float64(z / y) - Float64(a * Float64(x / y))));
	else
		tmp = Float64(Float64(t + Float64(y * 230661.510616)) / Float64(Float64(y * Float64(Float64(y * Float64(Float64(y * Float64(y + a)) + b)) + c)) + i));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	tmp = 0.0;
	if ((y <= -1.26e+19) || ~((y <= 5.8e+53)))
		tmp = x + ((z / y) - (a * (x / y)));
	else
		tmp = (t + (y * 230661.510616)) / ((y * ((y * ((y * (y + a)) + b)) + c)) + i);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := If[Or[LessEqual[y, -1.26e+19], N[Not[LessEqual[y, 5.8e+53]], $MachinePrecision]], N[(x + N[(N[(z / y), $MachinePrecision] - N[(a * N[(x / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(t + N[(y * 230661.510616), $MachinePrecision]), $MachinePrecision] / N[(N[(y * N[(N[(y * N[(N[(y * N[(y + a), $MachinePrecision]), $MachinePrecision] + b), $MachinePrecision]), $MachinePrecision] + c), $MachinePrecision]), $MachinePrecision] + i), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -1.26 \cdot 10^{+19} \lor \neg \left(y \leq 5.8 \cdot 10^{+53}\right):\\
\;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -1.26e19 or 5.8000000000000004e53 < y

    1. Initial program 6.8%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 58.3%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    4. Step-by-step derivation
      1. associate--l+58.3%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. associate-/l*61.8%

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

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

    if -1.26e19 < y < 5.8000000000000004e53

    1. Initial program 98.3%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 81.4%

      \[\leadsto \frac{\color{blue}{230661.510616 \cdot y} + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Step-by-step derivation
      1. *-commutative76.7%

        \[\leadsto \frac{\color{blue}{y \cdot 230661.510616} + t}{\left(y \cdot b + c\right) \cdot y + i} \]
    5. Simplified81.4%

      \[\leadsto \frac{\color{blue}{y \cdot 230661.510616} + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification72.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1.26 \cdot 10^{+19} \lor \neg \left(y \leq 5.8 \cdot 10^{+53}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t + y \cdot 230661.510616}{y \cdot \left(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right) + i}\\ \end{array} \]
  5. Add Preprocessing

Alternative 11: 75.1% accurate, 1.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -4.5 \cdot 10^{+23} \lor \neg \left(y \leq 5.4 \cdot 10^{+45}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot 27464.7644705\right)}{i + y \cdot \left(c + y \cdot b\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (or (<= y -4.5e+23) (not (<= y 5.4e+45)))
   (+ x (- (/ z y) (* a (/ x y))))
   (/
    (+ t (* y (+ 230661.510616 (* y 27464.7644705))))
    (+ i (* y (+ c (* y b)))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if ((y <= -4.5e+23) || !(y <= 5.4e+45)) {
		tmp = x + ((z / y) - (a * (x / y)));
	} else {
		tmp = (t + (y * (230661.510616 + (y * 27464.7644705)))) / (i + (y * (c + (y * 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 <= (-4.5d+23)) .or. (.not. (y <= 5.4d+45))) then
        tmp = x + ((z / y) - (a * (x / y)))
    else
        tmp = (t + (y * (230661.510616d0 + (y * 27464.7644705d0)))) / (i + (y * (c + (y * 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 <= -4.5e+23) || !(y <= 5.4e+45)) {
		tmp = x + ((z / y) - (a * (x / y)));
	} else {
		tmp = (t + (y * (230661.510616 + (y * 27464.7644705)))) / (i + (y * (c + (y * b))));
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	tmp = 0
	if (y <= -4.5e+23) or not (y <= 5.4e+45):
		tmp = x + ((z / y) - (a * (x / y)))
	else:
		tmp = (t + (y * (230661.510616 + (y * 27464.7644705)))) / (i + (y * (c + (y * b))))
	return tmp
function code(x, y, z, t, a, b, c, i)
	tmp = 0.0
	if ((y <= -4.5e+23) || !(y <= 5.4e+45))
		tmp = Float64(x + Float64(Float64(z / y) - Float64(a * Float64(x / y))));
	else
		tmp = Float64(Float64(t + Float64(y * Float64(230661.510616 + Float64(y * 27464.7644705)))) / Float64(i + Float64(y * Float64(c + Float64(y * b)))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	tmp = 0.0;
	if ((y <= -4.5e+23) || ~((y <= 5.4e+45)))
		tmp = x + ((z / y) - (a * (x / y)));
	else
		tmp = (t + (y * (230661.510616 + (y * 27464.7644705)))) / (i + (y * (c + (y * b))));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := If[Or[LessEqual[y, -4.5e+23], N[Not[LessEqual[y, 5.4e+45]], $MachinePrecision]], N[(x + N[(N[(z / y), $MachinePrecision] - N[(a * N[(x / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(t + N[(y * N[(230661.510616 + N[(y * 27464.7644705), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(i + N[(y * N[(c + N[(y * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -4.5 \cdot 10^{+23} \lor \neg \left(y \leq 5.4 \cdot 10^{+45}\right):\\
\;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -4.49999999999999979e23 or 5.39999999999999968e45 < y

    1. Initial program 6.8%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 58.8%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    4. Step-by-step derivation
      1. associate--l+58.8%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. associate-/l*62.3%

        \[\leadsto x + \left(\frac{z}{y} - \color{blue}{a \cdot \frac{x}{y}}\right) \]
    5. Simplified62.3%

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

    if -4.49999999999999979e23 < y < 5.39999999999999968e45

    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. Add Preprocessing
    3. Taylor expanded in y around 0 89.7%

      \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{b \cdot y} + c\right) \cdot y + i} \]
    4. Step-by-step derivation
      1. *-commutative89.7%

        \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{y \cdot b} + c\right) \cdot y + i} \]
    5. Simplified89.7%

      \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{y \cdot b} + c\right) \cdot y + i} \]
    6. Taylor expanded in y around 0 78.4%

      \[\leadsto \frac{\left(\color{blue}{27464.7644705 \cdot y} + 230661.510616\right) \cdot y + t}{\left(y \cdot b + c\right) \cdot y + i} \]
    7. Step-by-step derivation
      1. *-commutative78.4%

        \[\leadsto \frac{\left(\color{blue}{y \cdot 27464.7644705} + 230661.510616\right) \cdot y + t}{\left(y \cdot b + c\right) \cdot y + i} \]
    8. Simplified78.4%

      \[\leadsto \frac{\left(\color{blue}{y \cdot 27464.7644705} + 230661.510616\right) \cdot y + t}{\left(y \cdot b + c\right) \cdot y + i} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification71.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -4.5 \cdot 10^{+23} \lor \neg \left(y \leq 5.4 \cdot 10^{+45}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot 27464.7644705\right)}{i + y \cdot \left(c + y \cdot b\right)}\\ \end{array} \]
  5. Add Preprocessing

Alternative 12: 74.7% accurate, 1.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -1.12 \cdot 10^{+21} \lor \neg \left(y \leq 2.8 \cdot 10^{+44}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t + y \cdot 230661.510616}{i + y \cdot \left(c + y \cdot b\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (or (<= y -1.12e+21) (not (<= y 2.8e+44)))
   (+ x (- (/ z y) (* a (/ x y))))
   (/ (+ t (* y 230661.510616)) (+ i (* y (+ c (* y b)))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if ((y <= -1.12e+21) || !(y <= 2.8e+44)) {
		tmp = x + ((z / y) - (a * (x / y)));
	} else {
		tmp = (t + (y * 230661.510616)) / (i + (y * (c + (y * 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 <= (-1.12d+21)) .or. (.not. (y <= 2.8d+44))) then
        tmp = x + ((z / y) - (a * (x / y)))
    else
        tmp = (t + (y * 230661.510616d0)) / (i + (y * (c + (y * 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 <= -1.12e+21) || !(y <= 2.8e+44)) {
		tmp = x + ((z / y) - (a * (x / y)));
	} else {
		tmp = (t + (y * 230661.510616)) / (i + (y * (c + (y * b))));
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	tmp = 0
	if (y <= -1.12e+21) or not (y <= 2.8e+44):
		tmp = x + ((z / y) - (a * (x / y)))
	else:
		tmp = (t + (y * 230661.510616)) / (i + (y * (c + (y * b))))
	return tmp
function code(x, y, z, t, a, b, c, i)
	tmp = 0.0
	if ((y <= -1.12e+21) || !(y <= 2.8e+44))
		tmp = Float64(x + Float64(Float64(z / y) - Float64(a * Float64(x / y))));
	else
		tmp = Float64(Float64(t + Float64(y * 230661.510616)) / Float64(i + Float64(y * Float64(c + Float64(y * b)))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	tmp = 0.0;
	if ((y <= -1.12e+21) || ~((y <= 2.8e+44)))
		tmp = x + ((z / y) - (a * (x / y)));
	else
		tmp = (t + (y * 230661.510616)) / (i + (y * (c + (y * b))));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := If[Or[LessEqual[y, -1.12e+21], N[Not[LessEqual[y, 2.8e+44]], $MachinePrecision]], N[(x + N[(N[(z / y), $MachinePrecision] - N[(a * N[(x / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(t + N[(y * 230661.510616), $MachinePrecision]), $MachinePrecision] / N[(i + N[(y * N[(c + N[(y * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -1.12 \cdot 10^{+21} \lor \neg \left(y \leq 2.8 \cdot 10^{+44}\right):\\
\;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -1.12e21 or 2.8000000000000001e44 < 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. Add Preprocessing
    3. Taylor expanded in y around inf 57.8%

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

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. associate-/l*61.3%

        \[\leadsto x + \left(\frac{z}{y} - \color{blue}{a \cdot \frac{x}{y}}\right) \]
    5. Simplified61.3%

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

    if -1.12e21 < y < 2.8000000000000001e44

    1. Initial program 98.3%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 90.2%

      \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{b \cdot y} + c\right) \cdot y + i} \]
    4. Step-by-step derivation
      1. *-commutative90.2%

        \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{y \cdot b} + c\right) \cdot y + i} \]
    5. Simplified90.2%

      \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{y \cdot b} + c\right) \cdot y + i} \]
    6. Taylor expanded in y around 0 77.2%

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

        \[\leadsto \frac{\color{blue}{y \cdot 230661.510616} + t}{\left(y \cdot b + c\right) \cdot y + i} \]
    8. Simplified77.2%

      \[\leadsto \frac{\color{blue}{y \cdot 230661.510616} + t}{\left(y \cdot b + c\right) \cdot y + i} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification70.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1.12 \cdot 10^{+21} \lor \neg \left(y \leq 2.8 \cdot 10^{+44}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t + y \cdot 230661.510616}{i + y \cdot \left(c + y \cdot b\right)}\\ \end{array} \]
  5. Add Preprocessing

Alternative 13: 65.3% accurate, 1.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -2.3 \cdot 10^{+19} \lor \neg \left(y \leq 3.3 \cdot 10^{+53}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t}{i + y \cdot c}\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (or (<= y -2.3e+19) (not (<= y 3.3e+53)))
   (+ x (- (/ z y) (* a (/ x y))))
   (/ t (+ i (* y c)))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if ((y <= -2.3e+19) || !(y <= 3.3e+53)) {
		tmp = x + ((z / y) - (a * (x / y)));
	} else {
		tmp = t / (i + (y * c));
	}
	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 <= (-2.3d+19)) .or. (.not. (y <= 3.3d+53))) then
        tmp = x + ((z / y) - (a * (x / y)))
    else
        tmp = t / (i + (y * c))
    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 <= -2.3e+19) || !(y <= 3.3e+53)) {
		tmp = x + ((z / y) - (a * (x / y)));
	} else {
		tmp = t / (i + (y * c));
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	tmp = 0
	if (y <= -2.3e+19) or not (y <= 3.3e+53):
		tmp = x + ((z / y) - (a * (x / y)))
	else:
		tmp = t / (i + (y * c))
	return tmp
function code(x, y, z, t, a, b, c, i)
	tmp = 0.0
	if ((y <= -2.3e+19) || !(y <= 3.3e+53))
		tmp = Float64(x + Float64(Float64(z / y) - Float64(a * Float64(x / y))));
	else
		tmp = Float64(t / Float64(i + Float64(y * c)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	tmp = 0.0;
	if ((y <= -2.3e+19) || ~((y <= 3.3e+53)))
		tmp = x + ((z / y) - (a * (x / y)));
	else
		tmp = t / (i + (y * c));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := If[Or[LessEqual[y, -2.3e+19], N[Not[LessEqual[y, 3.3e+53]], $MachinePrecision]], N[(x + N[(N[(z / y), $MachinePrecision] - N[(a * N[(x / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(t / N[(i + N[(y * c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -2.3 \cdot 10^{+19} \lor \neg \left(y \leq 3.3 \cdot 10^{+53}\right):\\
\;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\

\mathbf{else}:\\
\;\;\;\;\frac{t}{i + y \cdot c}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -2.3e19 or 3.3000000000000002e53 < y

    1. Initial program 6.8%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 58.3%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    4. Step-by-step derivation
      1. associate--l+58.3%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. associate-/l*61.8%

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

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

    if -2.3e19 < y < 3.3000000000000002e53

    1. Initial program 98.3%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 89.6%

      \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{b \cdot y} + c\right) \cdot y + i} \]
    4. Step-by-step derivation
      1. *-commutative89.6%

        \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{y \cdot b} + c\right) \cdot y + i} \]
    5. Simplified89.6%

      \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{y \cdot b} + c\right) \cdot y + i} \]
    6. Taylor expanded in t around inf 81.2%

      \[\leadsto \color{blue}{t \cdot \left(\frac{1}{i + y \cdot \left(c + b \cdot y\right)} + \frac{y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + x \cdot y\right)\right)\right)}{t \cdot \left(i + y \cdot \left(c + b \cdot y\right)\right)}\right)} \]
    7. Taylor expanded in b around 0 75.0%

      \[\leadsto \color{blue}{t \cdot \left(\frac{1}{i + c \cdot y} + \frac{y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + x \cdot y\right)\right)\right)}{t \cdot \left(i + c \cdot y\right)}\right)} \]
    8. Taylor expanded in t around inf 62.7%

      \[\leadsto \color{blue}{\frac{t}{i + c \cdot y}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification62.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -2.3 \cdot 10^{+19} \lor \neg \left(y \leq 3.3 \cdot 10^{+53}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t}{i + y \cdot c}\\ \end{array} \]
  5. Add Preprocessing

Alternative 14: 67.7% accurate, 1.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -2550000000000 \lor \neg \left(y \leq 3.3 \cdot 10^{+53}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t}{i + y \cdot \left(c + y \cdot b\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (or (<= y -2550000000000.0) (not (<= y 3.3e+53)))
   (+ x (- (/ z y) (* a (/ x y))))
   (/ t (+ i (* y (+ c (* y b)))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if ((y <= -2550000000000.0) || !(y <= 3.3e+53)) {
		tmp = x + ((z / y) - (a * (x / y)));
	} else {
		tmp = t / (i + (y * (c + (y * 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 <= (-2550000000000.0d0)) .or. (.not. (y <= 3.3d+53))) then
        tmp = x + ((z / y) - (a * (x / y)))
    else
        tmp = t / (i + (y * (c + (y * 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 <= -2550000000000.0) || !(y <= 3.3e+53)) {
		tmp = x + ((z / y) - (a * (x / y)));
	} else {
		tmp = t / (i + (y * (c + (y * b))));
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	tmp = 0
	if (y <= -2550000000000.0) or not (y <= 3.3e+53):
		tmp = x + ((z / y) - (a * (x / y)))
	else:
		tmp = t / (i + (y * (c + (y * b))))
	return tmp
function code(x, y, z, t, a, b, c, i)
	tmp = 0.0
	if ((y <= -2550000000000.0) || !(y <= 3.3e+53))
		tmp = Float64(x + Float64(Float64(z / y) - Float64(a * Float64(x / y))));
	else
		tmp = Float64(t / Float64(i + Float64(y * Float64(c + Float64(y * b)))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	tmp = 0.0;
	if ((y <= -2550000000000.0) || ~((y <= 3.3e+53)))
		tmp = x + ((z / y) - (a * (x / y)));
	else
		tmp = t / (i + (y * (c + (y * b))));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := If[Or[LessEqual[y, -2550000000000.0], N[Not[LessEqual[y, 3.3e+53]], $MachinePrecision]], N[(x + N[(N[(z / y), $MachinePrecision] - N[(a * N[(x / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(t / N[(i + N[(y * N[(c + N[(y * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -2550000000000 \lor \neg \left(y \leq 3.3 \cdot 10^{+53}\right):\\
\;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -2.55e12 or 3.3000000000000002e53 < y

    1. Initial program 6.8%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 58.3%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    4. Step-by-step derivation
      1. associate--l+58.3%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. associate-/l*61.8%

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

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

    if -2.55e12 < y < 3.3000000000000002e53

    1. Initial program 98.3%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 89.6%

      \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{b \cdot y} + c\right) \cdot y + i} \]
    4. Step-by-step derivation
      1. *-commutative89.6%

        \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{y \cdot b} + c\right) \cdot y + i} \]
    5. Simplified89.6%

      \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{y \cdot b} + c\right) \cdot y + i} \]
    6. Taylor expanded in t around inf 65.5%

      \[\leadsto \color{blue}{\frac{t}{i + y \cdot \left(c + b \cdot y\right)}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification63.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -2550000000000 \lor \neg \left(y \leq 3.3 \cdot 10^{+53}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t}{i + y \cdot \left(c + y \cdot b\right)}\\ \end{array} \]
  5. Add Preprocessing

Alternative 15: 58.7% accurate, 1.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -1.05 \cdot 10^{+16}:\\ \;\;\;\;x\\ \mathbf{elif}\;y \leq 4.5 \cdot 10^{+38}:\\ \;\;\;\;\frac{t}{i + y \cdot c}\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (<= y -1.05e+16) x (if (<= y 4.5e+38) (/ 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 <= -1.05e+16) {
		tmp = x;
	} else if (y <= 4.5e+38) {
		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 <= (-1.05d+16)) then
        tmp = x
    else if (y <= 4.5d+38) 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 <= -1.05e+16) {
		tmp = x;
	} else if (y <= 4.5e+38) {
		tmp = t / (i + (y * c));
	} else {
		tmp = x;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	tmp = 0
	if y <= -1.05e+16:
		tmp = x
	elif y <= 4.5e+38:
		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 <= -1.05e+16)
		tmp = x;
	elseif (y <= 4.5e+38)
		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 <= -1.05e+16)
		tmp = x;
	elseif (y <= 4.5e+38)
		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, -1.05e+16], x, If[LessEqual[y, 4.5e+38], N[(t / N[(i + N[(y * c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], x]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -1.05 \cdot 10^{+16}:\\
\;\;\;\;x\\

\mathbf{elif}\;y \leq 4.5 \cdot 10^{+38}:\\
\;\;\;\;\frac{t}{i + y \cdot c}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -1.05e16 or 4.4999999999999998e38 < 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. Add Preprocessing
    3. Taylor expanded in y around inf 45.9%

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

    if -1.05e16 < y < 4.4999999999999998e38

    1. Initial program 99.0%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 90.8%

      \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{b \cdot y} + c\right) \cdot y + i} \]
    4. Step-by-step derivation
      1. *-commutative90.8%

        \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{y \cdot b} + c\right) \cdot y + i} \]
    5. Simplified90.8%

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

      \[\leadsto \color{blue}{t \cdot \left(\frac{1}{i + y \cdot \left(c + b \cdot y\right)} + \frac{y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + x \cdot y\right)\right)\right)}{t \cdot \left(i + y \cdot \left(c + b \cdot y\right)\right)}\right)} \]
    7. Taylor expanded in b around 0 76.0%

      \[\leadsto \color{blue}{t \cdot \left(\frac{1}{i + c \cdot y} + \frac{y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + x \cdot y\right)\right)\right)}{t \cdot \left(i + c \cdot y\right)}\right)} \]
    8. Taylor expanded in t around inf 63.6%

      \[\leadsto \color{blue}{\frac{t}{i + c \cdot y}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification55.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1.05 \cdot 10^{+16}:\\ \;\;\;\;x\\ \mathbf{elif}\;y \leq 4.5 \cdot 10^{+38}:\\ \;\;\;\;\frac{t}{i + y \cdot c}\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \]
  5. Add Preprocessing

Alternative 16: 50.8% accurate, 2.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -5.2 \cdot 10^{+16}:\\ \;\;\;\;x\\ \mathbf{elif}\;y \leq 3.4 \cdot 10^{-18}:\\ \;\;\;\;\frac{t}{i}\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (<= y -5.2e+16) x (if (<= y 3.4e-18) (/ 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 <= -5.2e+16) {
		tmp = x;
	} else if (y <= 3.4e-18) {
		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 <= (-5.2d+16)) then
        tmp = x
    else if (y <= 3.4d-18) 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 <= -5.2e+16) {
		tmp = x;
	} else if (y <= 3.4e-18) {
		tmp = t / i;
	} else {
		tmp = x;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	tmp = 0
	if y <= -5.2e+16:
		tmp = x
	elif y <= 3.4e-18:
		tmp = t / i
	else:
		tmp = x
	return tmp
function code(x, y, z, t, a, b, c, i)
	tmp = 0.0
	if (y <= -5.2e+16)
		tmp = x;
	elseif (y <= 3.4e-18)
		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 <= -5.2e+16)
		tmp = x;
	elseif (y <= 3.4e-18)
		tmp = t / i;
	else
		tmp = x;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := If[LessEqual[y, -5.2e+16], x, If[LessEqual[y, 3.4e-18], N[(t / i), $MachinePrecision], x]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -5.2 \cdot 10^{+16}:\\
\;\;\;\;x\\

\mathbf{elif}\;y \leq 3.4 \cdot 10^{-18}:\\
\;\;\;\;\frac{t}{i}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -5.2e16 or 3.40000000000000001e-18 < y

    1. Initial program 13.4%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 42.9%

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

    if -5.2e16 < y < 3.40000000000000001e-18

    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. Add Preprocessing
    3. Taylor expanded in y around 0 52.4%

      \[\leadsto \color{blue}{\frac{t}{i}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification47.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -5.2 \cdot 10^{+16}:\\ \;\;\;\;x\\ \mathbf{elif}\;y \leq 3.4 \cdot 10^{-18}:\\ \;\;\;\;\frac{t}{i}\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \]
  5. Add Preprocessing

Alternative 17: 25.9% 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 57.6%

    \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
  2. Add Preprocessing
  3. Taylor expanded in y around inf 22.7%

    \[\leadsto \color{blue}{x} \]
  4. Final simplification22.7%

    \[\leadsto x \]
  5. Add Preprocessing

Reproduce

?
herbie shell --seed 2024071 
(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)))