Numeric.SpecFunctions:logGamma from math-functions-0.1.5.2

Percentage Accurate: 56.5% → 84.9%
Time: 21.9s
Alternatives: 16
Speedup: 1.6×

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 16 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: 56.5% accurate, 1.0× speedup?

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

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

Alternative 1: 84.9% accurate, 0.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := i + y \cdot \left(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right)\\ t_2 := y \cdot \left(y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616\right)\\ \mathbf{if}\;\frac{t + t\_2}{t\_1} \leq \infty:\\ \;\;\;\;\frac{t}{t\_1} + \frac{t\_2}{t\_1}\\ \mathbf{else}:\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (let* ((t_1 (+ i (* y (+ (* y (+ (* y (+ y a)) b)) c))))
        (t_2
         (* y (+ (* y (+ (* y (+ (* x y) z)) 27464.7644705)) 230661.510616))))
   (if (<= (/ (+ t t_2) t_1) INFINITY)
     (+ (/ t t_1) (/ t_2 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 = i + (y * ((y * ((y * (y + a)) + b)) + c));
	double t_2 = y * ((y * ((y * ((x * y) + z)) + 27464.7644705)) + 230661.510616);
	double tmp;
	if (((t + t_2) / t_1) <= ((double) INFINITY)) {
		tmp = (t / t_1) + (t_2 / t_1);
	} else {
		tmp = x + ((z / y) - (a * (x / y)));
	}
	return tmp;
}
public static double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double t_1 = i + (y * ((y * ((y * (y + a)) + b)) + c));
	double t_2 = y * ((y * ((y * ((x * y) + z)) + 27464.7644705)) + 230661.510616);
	double tmp;
	if (((t + t_2) / t_1) <= Double.POSITIVE_INFINITY) {
		tmp = (t / t_1) + (t_2 / t_1);
	} else {
		tmp = x + ((z / y) - (a * (x / y)));
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	t_1 = i + (y * ((y * ((y * (y + a)) + b)) + c))
	t_2 = y * ((y * ((y * ((x * y) + z)) + 27464.7644705)) + 230661.510616)
	tmp = 0
	if ((t + t_2) / t_1) <= math.inf:
		tmp = (t / t_1) + (t_2 / 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(i + Float64(y * Float64(Float64(y * Float64(Float64(y * Float64(y + a)) + b)) + c)))
	t_2 = Float64(y * Float64(Float64(y * Float64(Float64(y * Float64(Float64(x * y) + z)) + 27464.7644705)) + 230661.510616))
	tmp = 0.0
	if (Float64(Float64(t + t_2) / t_1) <= Inf)
		tmp = Float64(Float64(t / t_1) + Float64(t_2 / t_1));
	else
		tmp = Float64(x + Float64(Float64(z / y) - Float64(a * Float64(x / y))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	t_1 = i + (y * ((y * ((y * (y + a)) + b)) + c));
	t_2 = y * ((y * ((y * ((x * y) + z)) + 27464.7644705)) + 230661.510616);
	tmp = 0.0;
	if (((t + t_2) / t_1) <= Inf)
		tmp = (t / t_1) + (t_2 / t_1);
	else
		tmp = x + ((z / y) - (a * (x / y)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := Block[{t$95$1 = N[(i + N[(y * N[(N[(y * N[(N[(y * N[(y + a), $MachinePrecision]), $MachinePrecision] + b), $MachinePrecision]), $MachinePrecision] + c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(y * N[(N[(y * N[(N[(y * N[(N[(x * y), $MachinePrecision] + z), $MachinePrecision]), $MachinePrecision] + 27464.7644705), $MachinePrecision]), $MachinePrecision] + 230661.510616), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[N[(N[(t + t$95$2), $MachinePrecision] / t$95$1), $MachinePrecision], Infinity], N[(N[(t / t$95$1), $MachinePrecision] + N[(t$95$2 / t$95$1), $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 := i + y \cdot \left(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right)\\
t_2 := y \cdot \left(y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616\right)\\
\mathbf{if}\;\frac{t + t\_2}{t\_1} \leq \infty:\\
\;\;\;\;\frac{t}{t\_1} + \frac{t\_2}{t\_1}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (/.f64 (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 (*.f64 x y) z) y) #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 94.9%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in t around 0 94.9%

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

    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 a around inf 0.0%

      \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\color{blue}{\left(a \cdot \left(1 + \frac{y}{a}\right)\right)} \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Taylor expanded in y around inf 69.9%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    5. Step-by-step derivation
      1. associate--l+69.9%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. associate-/l*71.9%

        \[\leadsto x + \left(\frac{z}{y} - \color{blue}{a \cdot \frac{x}{y}}\right) \]
    6. Simplified71.9%

      \[\leadsto \color{blue}{x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification86.3%

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

Alternative 2: 84.9% accurate, 0.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{t + y \cdot \left(y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616\right)}{i + y \cdot \left(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right)}\\ \mathbf{if}\;t\_1 \leq \infty:\\ \;\;\;\;t\_1\\ \mathbf{else}:\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \end{array} \end{array} \]
(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)))
          (+ i (* y (+ (* y (+ (* y (+ y a)) b)) c))))))
   (if (<= t_1 INFINITY) 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))) / (i + (y * ((y * ((y * (y + a)) + b)) + c)));
	double tmp;
	if (t_1 <= ((double) INFINITY)) {
		tmp = t_1;
	} else {
		tmp = x + ((z / y) - (a * (x / y)));
	}
	return tmp;
}
public static double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double t_1 = (t + (y * ((y * ((y * ((x * y) + z)) + 27464.7644705)) + 230661.510616))) / (i + (y * ((y * ((y * (y + a)) + b)) + c)));
	double tmp;
	if (t_1 <= Double.POSITIVE_INFINITY) {
		tmp = t_1;
	} else {
		tmp = x + ((z / y) - (a * (x / y)));
	}
	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 * ((y * ((y * (y + a)) + b)) + c)))
	tmp = 0
	if t_1 <= math.inf:
		tmp = 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(Float64(t + Float64(y * Float64(Float64(y * Float64(Float64(y * Float64(Float64(x * y) + z)) + 27464.7644705)) + 230661.510616))) / Float64(i + Float64(y * Float64(Float64(y * Float64(Float64(y * Float64(y + a)) + b)) + c))))
	tmp = 0.0
	if (t_1 <= Inf)
		tmp = t_1;
	else
		tmp = Float64(x + Float64(Float64(z / y) - Float64(a * Float64(x / y))));
	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 * ((y * ((y * (y + a)) + b)) + c)));
	tmp = 0.0;
	if (t_1 <= Inf)
		tmp = t_1;
	else
		tmp = x + ((z / y) - (a * (x / y)));
	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[(N[(y * N[(N[(y * N[(y + a), $MachinePrecision]), $MachinePrecision] + b), $MachinePrecision]), $MachinePrecision] + c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$1, Infinity], t$95$1, N[(x + N[(N[(z / y), $MachinePrecision] - N[(a * N[(x / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\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(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right)}\\
\mathbf{if}\;t\_1 \leq \infty:\\
\;\;\;\;t\_1\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (/.f64 (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 (*.f64 x y) z) y) #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 94.9%

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

    if +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 a around inf 0.0%

      \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\color{blue}{\left(a \cdot \left(1 + \frac{y}{a}\right)\right)} \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Taylor expanded in y around inf 69.9%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    5. Step-by-step derivation
      1. associate--l+69.9%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. associate-/l*71.9%

        \[\leadsto x + \left(\frac{z}{y} - \color{blue}{a \cdot \frac{x}{y}}\right) \]
    6. Simplified71.9%

      \[\leadsto \color{blue}{x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification86.3%

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

Alternative 3: 81.8% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := y \cdot \left(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right)\\ t_2 := x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{if}\;y \leq -4.9 \cdot 10^{+63}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;y \leq -0.0013:\\ \;\;\;\;\frac{t + y \cdot \left(y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616\right)}{t\_1}\\ \mathbf{elif}\;y \leq 4 \cdot 10^{+64}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}{i + t\_1}\\ \mathbf{else}:\\ \;\;\;\;t\_2\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (let* ((t_1 (* y (+ (* y (+ (* y (+ y a)) b)) c)))
        (t_2 (+ x (- (/ z y) (* a (/ x y))))))
   (if (<= y -4.9e+63)
     t_2
     (if (<= y -0.0013)
       (/
        (+
         t
         (* y (+ (* y (+ (* y (+ (* x y) z)) 27464.7644705)) 230661.510616)))
        t_1)
       (if (<= y 4e+64)
         (/
          (+ t (* y (+ 230661.510616 (* y (+ 27464.7644705 (* y z))))))
          (+ i 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 * (y + a)) + b)) + c);
	double t_2 = x + ((z / y) - (a * (x / y)));
	double tmp;
	if (y <= -4.9e+63) {
		tmp = t_2;
	} else if (y <= -0.0013) {
		tmp = (t + (y * ((y * ((y * ((x * y) + z)) + 27464.7644705)) + 230661.510616))) / t_1;
	} else if (y <= 4e+64) {
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / (i + 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 * (y + a)) + b)) + c)
    t_2 = x + ((z / y) - (a * (x / y)))
    if (y <= (-4.9d+63)) then
        tmp = t_2
    else if (y <= (-0.0013d0)) then
        tmp = (t + (y * ((y * ((y * ((x * y) + z)) + 27464.7644705d0)) + 230661.510616d0))) / t_1
    else if (y <= 4d+64) then
        tmp = (t + (y * (230661.510616d0 + (y * (27464.7644705d0 + (y * z)))))) / (i + 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 * (y + a)) + b)) + c);
	double t_2 = x + ((z / y) - (a * (x / y)));
	double tmp;
	if (y <= -4.9e+63) {
		tmp = t_2;
	} else if (y <= -0.0013) {
		tmp = (t + (y * ((y * ((y * ((x * y) + z)) + 27464.7644705)) + 230661.510616))) / t_1;
	} else if (y <= 4e+64) {
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / (i + t_1);
	} else {
		tmp = t_2;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	t_1 = y * ((y * ((y * (y + a)) + b)) + c)
	t_2 = x + ((z / y) - (a * (x / y)))
	tmp = 0
	if y <= -4.9e+63:
		tmp = t_2
	elif y <= -0.0013:
		tmp = (t + (y * ((y * ((y * ((x * y) + z)) + 27464.7644705)) + 230661.510616))) / t_1
	elif y <= 4e+64:
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / (i + t_1)
	else:
		tmp = t_2
	return tmp
function code(x, y, z, t, a, b, c, i)
	t_1 = Float64(y * Float64(Float64(y * Float64(Float64(y * Float64(y + a)) + b)) + c))
	t_2 = Float64(x + Float64(Float64(z / y) - Float64(a * Float64(x / y))))
	tmp = 0.0
	if (y <= -4.9e+63)
		tmp = t_2;
	elseif (y <= -0.0013)
		tmp = Float64(Float64(t + Float64(y * Float64(Float64(y * Float64(Float64(y * Float64(Float64(x * y) + z)) + 27464.7644705)) + 230661.510616))) / t_1);
	elseif (y <= 4e+64)
		tmp = Float64(Float64(t + Float64(y * Float64(230661.510616 + Float64(y * Float64(27464.7644705 + Float64(y * z)))))) / Float64(i + 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 * (y + a)) + b)) + c);
	t_2 = x + ((z / y) - (a * (x / y)));
	tmp = 0.0;
	if (y <= -4.9e+63)
		tmp = t_2;
	elseif (y <= -0.0013)
		tmp = (t + (y * ((y * ((y * ((x * y) + z)) + 27464.7644705)) + 230661.510616))) / t_1;
	elseif (y <= 4e+64)
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / (i + 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[(y * N[(N[(y * N[(y + a), $MachinePrecision]), $MachinePrecision] + b), $MachinePrecision]), $MachinePrecision] + c), $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, -4.9e+63], t$95$2, If[LessEqual[y, -0.0013], 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] / t$95$1), $MachinePrecision], If[LessEqual[y, 4e+64], N[(N[(t + N[(y * N[(230661.510616 + N[(y * N[(27464.7644705 + N[(y * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(i + t$95$1), $MachinePrecision]), $MachinePrecision], t$95$2]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := y \cdot \left(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right)\\
t_2 := x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\
\mathbf{if}\;y \leq -4.9 \cdot 10^{+63}:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;y \leq -0.0013:\\
\;\;\;\;\frac{t + y \cdot \left(y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616\right)}{t\_1}\\

\mathbf{elif}\;y \leq 4 \cdot 10^{+64}:\\
\;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}{i + t\_1}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -4.8999999999999997e63 or 4.00000000000000009e64 < y

    1. Initial program 4.1%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 3.1%

      \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\color{blue}{\left(a \cdot \left(1 + \frac{y}{a}\right)\right)} \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Taylor expanded in y around inf 70.5%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    5. Step-by-step derivation
      1. associate--l+70.5%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. associate-/l*72.4%

        \[\leadsto x + \left(\frac{z}{y} - \color{blue}{a \cdot \frac{x}{y}}\right) \]
    6. Simplified72.4%

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

    if -4.8999999999999997e63 < y < -0.0012999999999999999

    1. Initial program 74.0%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in i around 0 67.7%

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

    if -0.0012999999999999999 < y < 4.00000000000000009e64

    1. Initial program 96.9%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in x around 0 94.3%

      \[\leadsto \frac{\left(\left(\color{blue}{y \cdot z} + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification84.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -4.9 \cdot 10^{+63}:\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{elif}\;y \leq -0.0013:\\ \;\;\;\;\frac{t + y \cdot \left(y \cdot \left(y \cdot \left(x \cdot y + z\right) + 27464.7644705\right) + 230661.510616\right)}{y \cdot \left(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right)}\\ \mathbf{elif}\;y \leq 4 \cdot 10^{+64}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}{i + y \cdot \left(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right)}\\ \mathbf{else}:\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 4: 81.4% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -1.22 \cdot 10^{+67} \lor \neg \left(y \leq 1.65 \cdot 10^{+64}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}{i + y \cdot \left(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (or (<= y -1.22e+67) (not (<= y 1.65e+64)))
   (+ x (- (/ z y) (* a (/ x y))))
   (/
    (+ t (* y (+ 230661.510616 (* y (+ 27464.7644705 (* y z))))))
    (+ i (* y (+ (* y (+ (* y (+ y a)) b)) c))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if ((y <= -1.22e+67) || !(y <= 1.65e+64)) {
		tmp = x + ((z / y) - (a * (x / y)));
	} else {
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / (i + (y * ((y * ((y * (y + a)) + b)) + 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 <= (-1.22d+67)) .or. (.not. (y <= 1.65d+64))) then
        tmp = x + ((z / y) - (a * (x / y)))
    else
        tmp = (t + (y * (230661.510616d0 + (y * (27464.7644705d0 + (y * z)))))) / (i + (y * ((y * ((y * (y + a)) + b)) + 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 <= -1.22e+67) || !(y <= 1.65e+64)) {
		tmp = x + ((z / y) - (a * (x / y)));
	} else {
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / (i + (y * ((y * ((y * (y + a)) + b)) + c)));
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	tmp = 0
	if (y <= -1.22e+67) or not (y <= 1.65e+64):
		tmp = x + ((z / y) - (a * (x / y)))
	else:
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / (i + (y * ((y * ((y * (y + a)) + b)) + c)))
	return tmp
function code(x, y, z, t, a, b, c, i)
	tmp = 0.0
	if ((y <= -1.22e+67) || !(y <= 1.65e+64))
		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(Float64(y * Float64(Float64(y * Float64(y + a)) + b)) + c))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	tmp = 0.0;
	if ((y <= -1.22e+67) || ~((y <= 1.65e+64)))
		tmp = x + ((z / y) - (a * (x / y)));
	else
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / (i + (y * ((y * ((y * (y + a)) + b)) + c)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := If[Or[LessEqual[y, -1.22e+67], N[Not[LessEqual[y, 1.65e+64]], $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[(N[(y * N[(N[(y * N[(y + a), $MachinePrecision]), $MachinePrecision] + b), $MachinePrecision]), $MachinePrecision] + c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -1.22 \cdot 10^{+67} \lor \neg \left(y \leq 1.65 \cdot 10^{+64}\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(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right)}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -1.22000000000000004e67 or 1.64999999999999994e64 < y

    1. Initial program 4.1%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 3.1%

      \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\color{blue}{\left(a \cdot \left(1 + \frac{y}{a}\right)\right)} \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Taylor expanded in y around inf 70.5%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    5. Step-by-step derivation
      1. associate--l+70.5%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. associate-/l*72.4%

        \[\leadsto x + \left(\frac{z}{y} - \color{blue}{a \cdot \frac{x}{y}}\right) \]
    6. Simplified72.4%

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

    if -1.22000000000000004e67 < y < 1.64999999999999994e64

    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. Taylor expanded in x around 0 89.1%

      \[\leadsto \frac{\left(\left(\color{blue}{y \cdot z} + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification82.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1.22 \cdot 10^{+67} \lor \neg \left(y \leq 1.65 \cdot 10^{+64}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}{i + y \cdot \left(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right)}\\ \end{array} \]
  5. Add Preprocessing

Alternative 5: 80.8% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -7.5 \cdot 10^{+63} \lor \neg \left(y \leq 3.15 \cdot 10^{+50}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}{i + y \cdot \left(c + y \cdot \left(b + y \cdot a\right)\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (or (<= y -7.5e+63) (not (<= y 3.15e+50)))
   (+ x (- (/ z y) (* a (/ x y))))
   (/
    (+ t (* y (+ 230661.510616 (* y (+ 27464.7644705 (* y z))))))
    (+ i (* y (+ c (* y (+ b (* y a)))))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if ((y <= -7.5e+63) || !(y <= 3.15e+50)) {
		tmp = x + ((z / y) - (a * (x / y)));
	} else {
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / (i + (y * (c + (y * (b + (y * a))))));
	}
	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 <= (-7.5d+63)) .or. (.not. (y <= 3.15d+50))) then
        tmp = x + ((z / y) - (a * (x / y)))
    else
        tmp = (t + (y * (230661.510616d0 + (y * (27464.7644705d0 + (y * z)))))) / (i + (y * (c + (y * (b + (y * a))))))
    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 <= -7.5e+63) || !(y <= 3.15e+50)) {
		tmp = x + ((z / y) - (a * (x / y)));
	} else {
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / (i + (y * (c + (y * (b + (y * a))))));
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	tmp = 0
	if (y <= -7.5e+63) or not (y <= 3.15e+50):
		tmp = x + ((z / y) - (a * (x / y)))
	else:
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / (i + (y * (c + (y * (b + (y * a))))))
	return tmp
function code(x, y, z, t, a, b, c, i)
	tmp = 0.0
	if ((y <= -7.5e+63) || !(y <= 3.15e+50))
		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 * Float64(b + Float64(y * a)))))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	tmp = 0.0;
	if ((y <= -7.5e+63) || ~((y <= 3.15e+50)))
		tmp = x + ((z / y) - (a * (x / y)));
	else
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / (i + (y * (c + (y * (b + (y * a))))));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := If[Or[LessEqual[y, -7.5e+63], N[Not[LessEqual[y, 3.15e+50]], $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 * N[(b + N[(y * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -7.5 \cdot 10^{+63} \lor \neg \left(y \leq 3.15 \cdot 10^{+50}\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 \left(b + y \cdot a\right)\right)}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -7.5000000000000005e63 or 3.14999999999999993e50 < y

    1. Initial program 4.9%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 4.0%

      \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\color{blue}{\left(a \cdot \left(1 + \frac{y}{a}\right)\right)} \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Taylor expanded in y around inf 68.7%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    5. Step-by-step derivation
      1. associate--l+68.7%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. associate-/l*70.5%

        \[\leadsto x + \left(\frac{z}{y} - \color{blue}{a \cdot \frac{x}{y}}\right) \]
    6. Simplified70.5%

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

    if -7.5000000000000005e63 < y < 3.14999999999999993e50

    1. Initial program 95.9%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in x around 0 90.4%

      \[\leadsto \frac{\left(\left(\color{blue}{y \cdot z} + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Taylor expanded in y around 0 89.1%

      \[\leadsto \frac{\left(\left(y \cdot z + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\color{blue}{a \cdot y} + b\right) \cdot y + c\right) \cdot y + i} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification81.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -7.5 \cdot 10^{+63} \lor \neg \left(y \leq 3.15 \cdot 10^{+50}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}{i + y \cdot \left(c + y \cdot \left(b + y \cdot a\right)\right)}\\ \end{array} \]
  5. Add Preprocessing

Alternative 6: 78.1% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -1.85 \cdot 10^{+63} \lor \neg \left(y \leq 6.1 \cdot 10^{+43}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}{i + y \cdot \left(c + y \cdot b\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (or (<= y -1.85e+63) (not (<= y 6.1e+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 <= -1.85e+63) || !(y <= 6.1e+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 <= (-1.85d+63)) .or. (.not. (y <= 6.1d+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 <= -1.85e+63) || !(y <= 6.1e+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 <= -1.85e+63) or not (y <= 6.1e+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 <= -1.85e+63) || !(y <= 6.1e+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 <= -1.85e+63) || ~((y <= 6.1e+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, -1.85e+63], N[Not[LessEqual[y, 6.1e+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 -1.85 \cdot 10^{+63} \lor \neg \left(y \leq 6.1 \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 < -1.84999999999999984e63 or 6.0999999999999998e43 < y

    1. Initial program 4.9%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 4.0%

      \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\color{blue}{\left(a \cdot \left(1 + \frac{y}{a}\right)\right)} \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Taylor expanded in y around inf 68.1%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    5. Step-by-step derivation
      1. associate--l+68.1%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. associate-/l*69.9%

        \[\leadsto x + \left(\frac{z}{y} - \color{blue}{a \cdot \frac{x}{y}}\right) \]
    6. Simplified69.9%

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

    if -1.84999999999999984e63 < y < 6.0999999999999998e43

    1. Initial program 96.5%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in x around 0 91.0%

      \[\leadsto \frac{\left(\left(\color{blue}{y \cdot z} + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Taylor expanded in y around 0 85.2%

      \[\leadsto \frac{\left(\left(y \cdot z + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{b \cdot y} + c\right) \cdot y + i} \]
    5. Step-by-step derivation
      1. *-commutative85.2%

        \[\leadsto \frac{\left(\left(y \cdot z + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{y \cdot b} + c\right) \cdot y + i} \]
    6. Simplified85.2%

      \[\leadsto \frac{\left(\left(y \cdot z + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{y \cdot b} + c\right) \cdot y + i} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification78.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1.85 \cdot 10^{+63} \lor \neg \left(y \leq 6.1 \cdot 10^{+43}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}{i + y \cdot \left(c + y \cdot b\right)}\\ \end{array} \]
  5. Add Preprocessing

Alternative 7: 76.1% accurate, 1.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -1.15 \cdot 10^{+28} \lor \neg \left(y \leq 5 \cdot 10^{+45}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t + y \cdot 230661.510616}{i + y \cdot \left(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (or (<= y -1.15e+28) (not (<= y 5e+45)))
   (+ x (- (/ z y) (* a (/ x y))))
   (/ (+ t (* y 230661.510616)) (+ i (* y (+ (* y (+ (* y (+ y a)) b)) c))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if ((y <= -1.15e+28) || !(y <= 5e+45)) {
		tmp = x + ((z / y) - (a * (x / y)));
	} else {
		tmp = (t + (y * 230661.510616)) / (i + (y * ((y * ((y * (y + a)) + b)) + 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 <= (-1.15d+28)) .or. (.not. (y <= 5d+45))) then
        tmp = x + ((z / y) - (a * (x / y)))
    else
        tmp = (t + (y * 230661.510616d0)) / (i + (y * ((y * ((y * (y + a)) + b)) + 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 <= -1.15e+28) || !(y <= 5e+45)) {
		tmp = x + ((z / y) - (a * (x / y)));
	} else {
		tmp = (t + (y * 230661.510616)) / (i + (y * ((y * ((y * (y + a)) + b)) + c)));
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	tmp = 0
	if (y <= -1.15e+28) or not (y <= 5e+45):
		tmp = x + ((z / y) - (a * (x / y)))
	else:
		tmp = (t + (y * 230661.510616)) / (i + (y * ((y * ((y * (y + a)) + b)) + c)))
	return tmp
function code(x, y, z, t, a, b, c, i)
	tmp = 0.0
	if ((y <= -1.15e+28) || !(y <= 5e+45))
		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(Float64(y * Float64(Float64(y * Float64(y + a)) + b)) + c))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	tmp = 0.0;
	if ((y <= -1.15e+28) || ~((y <= 5e+45)))
		tmp = x + ((z / y) - (a * (x / y)));
	else
		tmp = (t + (y * 230661.510616)) / (i + (y * ((y * ((y * (y + a)) + b)) + c)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := If[Or[LessEqual[y, -1.15e+28], N[Not[LessEqual[y, 5e+45]], $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[(N[(y * N[(N[(y * N[(y + a), $MachinePrecision]), $MachinePrecision] + b), $MachinePrecision]), $MachinePrecision] + c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -1.15 \cdot 10^{+28} \lor \neg \left(y \leq 5 \cdot 10^{+45}\right):\\
\;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -1.14999999999999992e28 or 5e45 < y

    1. Initial program 10.0%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 8.2%

      \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\color{blue}{\left(a \cdot \left(1 + \frac{y}{a}\right)\right)} \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Taylor expanded in y around inf 64.2%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    5. Step-by-step derivation
      1. associate--l+64.2%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. associate-/l*65.9%

        \[\leadsto x + \left(\frac{z}{y} - \color{blue}{a \cdot \frac{x}{y}}\right) \]
    6. Simplified65.9%

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

    if -1.14999999999999992e28 < y < 5e45

    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 86.6%

      \[\leadsto \frac{\color{blue}{230661.510616 \cdot y} + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Step-by-step derivation
      1. *-commutative86.6%

        \[\leadsto \frac{\color{blue}{y \cdot 230661.510616} + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    5. Simplified86.6%

      \[\leadsto \frac{\color{blue}{y \cdot 230661.510616} + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification77.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1.15 \cdot 10^{+28} \lor \neg \left(y \leq 5 \cdot 10^{+45}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t + y \cdot 230661.510616}{i + y \cdot \left(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right)}\\ \end{array} \]
  5. Add Preprocessing

Alternative 8: 74.8% accurate, 1.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -1 \cdot 10^{+28} \lor \neg \left(y \leq 5.6 \cdot 10^{+45}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot 27464.7644705\right)}{i + y \cdot \left(c + y \cdot b\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (or (<= y -1e+28) (not (<= y 5.6e+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 <= -1e+28) || !(y <= 5.6e+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 <= (-1d+28)) .or. (.not. (y <= 5.6d+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 <= -1e+28) || !(y <= 5.6e+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 <= -1e+28) or not (y <= 5.6e+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 <= -1e+28) || !(y <= 5.6e+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 <= -1e+28) || ~((y <= 5.6e+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, -1e+28], N[Not[LessEqual[y, 5.6e+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 -1 \cdot 10^{+28} \lor \neg \left(y \leq 5.6 \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 < -9.99999999999999958e27 or 5.5999999999999999e45 < y

    1. Initial program 10.0%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 8.2%

      \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\color{blue}{\left(a \cdot \left(1 + \frac{y}{a}\right)\right)} \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Taylor expanded in y around inf 64.2%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    5. Step-by-step derivation
      1. associate--l+64.2%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. associate-/l*65.9%

        \[\leadsto x + \left(\frac{z}{y} - \color{blue}{a \cdot \frac{x}{y}}\right) \]
    6. Simplified65.9%

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

    if -9.99999999999999958e27 < y < 5.5999999999999999e45

    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 93.8%

      \[\leadsto \frac{\left(\left(\color{blue}{y \cdot z} + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Taylor expanded in y around 0 88.3%

      \[\leadsto \frac{\left(\left(y \cdot z + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{b \cdot y} + c\right) \cdot y + i} \]
    5. Step-by-step derivation
      1. *-commutative88.3%

        \[\leadsto \frac{\left(\left(y \cdot z + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{y \cdot b} + c\right) \cdot y + i} \]
    6. Simplified88.3%

      \[\leadsto \frac{\left(\left(y \cdot z + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{y \cdot b} + c\right) \cdot y + i} \]
    7. Taylor expanded in y around 0 82.1%

      \[\leadsto \frac{\left(\color{blue}{27464.7644705} \cdot y + 230661.510616\right) \cdot y + t}{\left(y \cdot b + c\right) \cdot y + i} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification75.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1 \cdot 10^{+28} \lor \neg \left(y \leq 5.6 \cdot 10^{+45}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot 27464.7644705\right)}{i + y \cdot \left(c + y \cdot b\right)}\\ \end{array} \]
  5. Add Preprocessing

Alternative 9: 68.8% accurate, 1.2× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -5.8 \cdot 10^{+27} \lor \neg \left(y \leq 8.5 \cdot 10^{+48}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t}{i + y \cdot \left(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (or (<= y -5.8e+27) (not (<= y 8.5e+48)))
   (+ x (- (/ z y) (* a (/ x y))))
   (/ t (+ i (* y (+ (* y (+ (* y (+ y a)) b)) c))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if ((y <= -5.8e+27) || !(y <= 8.5e+48)) {
		tmp = x + ((z / y) - (a * (x / y)));
	} else {
		tmp = t / (i + (y * ((y * ((y * (y + a)) + b)) + 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 <= (-5.8d+27)) .or. (.not. (y <= 8.5d+48))) then
        tmp = x + ((z / y) - (a * (x / y)))
    else
        tmp = t / (i + (y * ((y * ((y * (y + a)) + b)) + 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 <= -5.8e+27) || !(y <= 8.5e+48)) {
		tmp = x + ((z / y) - (a * (x / y)));
	} else {
		tmp = t / (i + (y * ((y * ((y * (y + a)) + b)) + c)));
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	tmp = 0
	if (y <= -5.8e+27) or not (y <= 8.5e+48):
		tmp = x + ((z / y) - (a * (x / y)))
	else:
		tmp = t / (i + (y * ((y * ((y * (y + a)) + b)) + c)))
	return tmp
function code(x, y, z, t, a, b, c, i)
	tmp = 0.0
	if ((y <= -5.8e+27) || !(y <= 8.5e+48))
		tmp = Float64(x + Float64(Float64(z / y) - Float64(a * Float64(x / y))));
	else
		tmp = Float64(t / Float64(i + Float64(y * Float64(Float64(y * Float64(Float64(y * Float64(y + a)) + b)) + c))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	tmp = 0.0;
	if ((y <= -5.8e+27) || ~((y <= 8.5e+48)))
		tmp = x + ((z / y) - (a * (x / y)));
	else
		tmp = t / (i + (y * ((y * ((y * (y + a)) + b)) + c)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := If[Or[LessEqual[y, -5.8e+27], N[Not[LessEqual[y, 8.5e+48]], $MachinePrecision]], N[(x + N[(N[(z / y), $MachinePrecision] - N[(a * N[(x / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(t / N[(i + N[(y * N[(N[(y * N[(N[(y * N[(y + a), $MachinePrecision]), $MachinePrecision] + b), $MachinePrecision]), $MachinePrecision] + c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -5.8 \cdot 10^{+27} \lor \neg \left(y \leq 8.5 \cdot 10^{+48}\right):\\
\;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -5.8000000000000002e27 or 8.5000000000000001e48 < y

    1. Initial program 10.0%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 8.2%

      \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\color{blue}{\left(a \cdot \left(1 + \frac{y}{a}\right)\right)} \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Taylor expanded in y around inf 64.2%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    5. Step-by-step derivation
      1. associate--l+64.2%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. associate-/l*65.9%

        \[\leadsto x + \left(\frac{z}{y} - \color{blue}{a \cdot \frac{x}{y}}\right) \]
    6. Simplified65.9%

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

    if -5.8000000000000002e27 < y < 8.5000000000000001e48

    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 t around inf 76.1%

      \[\leadsto \color{blue}{\frac{t}{i + y \cdot \left(c + y \cdot \left(b + y \cdot \left(a + y\right)\right)\right)}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification71.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -5.8 \cdot 10^{+27} \lor \neg \left(y \leq 8.5 \cdot 10^{+48}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t}{i + y \cdot \left(y \cdot \left(y \cdot \left(y + a\right) + b\right) + c\right)}\\ \end{array} \]
  5. Add Preprocessing

Alternative 10: 67.4% accurate, 1.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -1.8 \cdot 10^{+28} \lor \neg \left(y \leq 4.9 \cdot 10^{+45}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t}{i + y \cdot \left(c + y \cdot b\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (or (<= y -1.8e+28) (not (<= y 4.9e+45)))
   (+ 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 <= -1.8e+28) || !(y <= 4.9e+45)) {
		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 <= (-1.8d+28)) .or. (.not. (y <= 4.9d+45))) 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 <= -1.8e+28) || !(y <= 4.9e+45)) {
		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 <= -1.8e+28) or not (y <= 4.9e+45):
		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 <= -1.8e+28) || !(y <= 4.9e+45))
		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 <= -1.8e+28) || ~((y <= 4.9e+45)))
		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, -1.8e+28], N[Not[LessEqual[y, 4.9e+45]], $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 -1.8 \cdot 10^{+28} \lor \neg \left(y \leq 4.9 \cdot 10^{+45}\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 < -1.8e28 or 4.9000000000000002e45 < y

    1. Initial program 10.0%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 8.2%

      \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\color{blue}{\left(a \cdot \left(1 + \frac{y}{a}\right)\right)} \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Taylor expanded in y around inf 64.2%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    5. Step-by-step derivation
      1. associate--l+64.2%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. associate-/l*65.9%

        \[\leadsto x + \left(\frac{z}{y} - \color{blue}{a \cdot \frac{x}{y}}\right) \]
    6. Simplified65.9%

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

    if -1.8e28 < y < 4.9000000000000002e45

    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 93.8%

      \[\leadsto \frac{\left(\left(\color{blue}{y \cdot z} + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Taylor expanded in y around 0 88.3%

      \[\leadsto \frac{\left(\left(y \cdot z + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{b \cdot y} + c\right) \cdot y + i} \]
    5. Step-by-step derivation
      1. *-commutative88.3%

        \[\leadsto \frac{\left(\left(y \cdot z + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{y \cdot b} + c\right) \cdot y + i} \]
    6. Simplified88.3%

      \[\leadsto \frac{\left(\left(y \cdot z + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{y \cdot b} + c\right) \cdot y + i} \]
    7. Taylor expanded in t around inf 72.4%

      \[\leadsto \color{blue}{\frac{t}{i + y \cdot \left(c + b \cdot y\right)}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification69.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1.8 \cdot 10^{+28} \lor \neg \left(y \leq 4.9 \cdot 10^{+45}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t}{i + y \cdot \left(c + y \cdot b\right)}\\ \end{array} \]
  5. Add Preprocessing

Alternative 11: 56.7% accurate, 1.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -4.6 \cdot 10^{+27} \lor \neg \left(y \leq 4.9 \cdot 10^{+45}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t}{i}\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (or (<= y -4.6e+27) (not (<= y 4.9e+45)))
   (+ x (- (/ z y) (* a (/ x y))))
   (/ t i)))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if ((y <= -4.6e+27) || !(y <= 4.9e+45)) {
		tmp = x + ((z / y) - (a * (x / y)));
	} else {
		tmp = t / 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 <= (-4.6d+27)) .or. (.not. (y <= 4.9d+45))) then
        tmp = x + ((z / y) - (a * (x / y)))
    else
        tmp = t / 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 <= -4.6e+27) || !(y <= 4.9e+45)) {
		tmp = x + ((z / y) - (a * (x / y)));
	} else {
		tmp = t / i;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	tmp = 0
	if (y <= -4.6e+27) or not (y <= 4.9e+45):
		tmp = x + ((z / y) - (a * (x / y)))
	else:
		tmp = t / i
	return tmp
function code(x, y, z, t, a, b, c, i)
	tmp = 0.0
	if ((y <= -4.6e+27) || !(y <= 4.9e+45))
		tmp = Float64(x + Float64(Float64(z / y) - Float64(a * Float64(x / y))));
	else
		tmp = Float64(t / i);
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	tmp = 0.0;
	if ((y <= -4.6e+27) || ~((y <= 4.9e+45)))
		tmp = x + ((z / y) - (a * (x / y)));
	else
		tmp = t / i;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := If[Or[LessEqual[y, -4.6e+27], N[Not[LessEqual[y, 4.9e+45]], $MachinePrecision]], N[(x + N[(N[(z / y), $MachinePrecision] - N[(a * N[(x / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(t / i), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -4.6 \cdot 10^{+27} \lor \neg \left(y \leq 4.9 \cdot 10^{+45}\right):\\
\;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\

\mathbf{else}:\\
\;\;\;\;\frac{t}{i}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -4.6000000000000001e27 or 4.9000000000000002e45 < y

    1. Initial program 10.0%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 8.2%

      \[\leadsto \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\color{blue}{\left(a \cdot \left(1 + \frac{y}{a}\right)\right)} \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Taylor expanded in y around inf 64.2%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    5. Step-by-step derivation
      1. associate--l+64.2%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. associate-/l*65.9%

        \[\leadsto x + \left(\frac{z}{y} - \color{blue}{a \cdot \frac{x}{y}}\right) \]
    6. Simplified65.9%

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

    if -4.6000000000000001e27 < y < 4.9000000000000002e45

    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 51.9%

      \[\leadsto \color{blue}{\frac{t}{i}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification58.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -4.6 \cdot 10^{+27} \lor \neg \left(y \leq 4.9 \cdot 10^{+45}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - a \cdot \frac{x}{y}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t}{i}\\ \end{array} \]
  5. Add Preprocessing

Alternative 12: 54.6% accurate, 1.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -4.8 \cdot 10^{+27} \lor \neg \left(y \leq 1.2 \cdot 10^{+46}\right):\\ \;\;\;\;x + \frac{z - x \cdot a}{y}\\ \mathbf{else}:\\ \;\;\;\;\frac{t}{i}\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (or (<= y -4.8e+27) (not (<= y 1.2e+46)))
   (+ x (/ (- z (* x a)) y))
   (/ t i)))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if ((y <= -4.8e+27) || !(y <= 1.2e+46)) {
		tmp = x + ((z - (x * a)) / y);
	} else {
		tmp = t / 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 <= (-4.8d+27)) .or. (.not. (y <= 1.2d+46))) then
        tmp = x + ((z - (x * a)) / y)
    else
        tmp = t / 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 <= -4.8e+27) || !(y <= 1.2e+46)) {
		tmp = x + ((z - (x * a)) / y);
	} else {
		tmp = t / i;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	tmp = 0
	if (y <= -4.8e+27) or not (y <= 1.2e+46):
		tmp = x + ((z - (x * a)) / y)
	else:
		tmp = t / i
	return tmp
function code(x, y, z, t, a, b, c, i)
	tmp = 0.0
	if ((y <= -4.8e+27) || !(y <= 1.2e+46))
		tmp = Float64(x + Float64(Float64(z - Float64(x * a)) / y));
	else
		tmp = Float64(t / i);
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	tmp = 0.0;
	if ((y <= -4.8e+27) || ~((y <= 1.2e+46)))
		tmp = x + ((z - (x * a)) / y);
	else
		tmp = t / i;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := If[Or[LessEqual[y, -4.8e+27], N[Not[LessEqual[y, 1.2e+46]], $MachinePrecision]], N[(x + N[(N[(z - N[(x * a), $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision], N[(t / i), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -4.8 \cdot 10^{+27} \lor \neg \left(y \leq 1.2 \cdot 10^{+46}\right):\\
\;\;\;\;x + \frac{z - x \cdot a}{y}\\

\mathbf{else}:\\
\;\;\;\;\frac{t}{i}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -4.79999999999999995e27 or 1.20000000000000004e46 < y

    1. Initial program 10.0%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 8.4%

      \[\leadsto \frac{\color{blue}{{y}^{4} \cdot \left(x + \frac{z}{y}\right)} + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Taylor expanded in y around -inf 64.2%

      \[\leadsto \color{blue}{x + -1 \cdot \frac{-1 \cdot z - -1 \cdot \left(a \cdot x\right)}{y}} \]
    5. Step-by-step derivation
      1. mul-1-neg64.2%

        \[\leadsto x + \color{blue}{\left(-\frac{-1 \cdot z - -1 \cdot \left(a \cdot x\right)}{y}\right)} \]
      2. distribute-lft-out--64.2%

        \[\leadsto x + \left(-\frac{\color{blue}{-1 \cdot \left(z - a \cdot x\right)}}{y}\right) \]
      3. mul-1-neg64.2%

        \[\leadsto x + \left(-\frac{\color{blue}{-\left(z - a \cdot x\right)}}{y}\right) \]
    6. Simplified64.2%

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

    if -4.79999999999999995e27 < y < 1.20000000000000004e46

    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 51.9%

      \[\leadsto \color{blue}{\frac{t}{i}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification57.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -4.8 \cdot 10^{+27} \lor \neg \left(y \leq 1.2 \cdot 10^{+46}\right):\\ \;\;\;\;x + \frac{z - x \cdot a}{y}\\ \mathbf{else}:\\ \;\;\;\;\frac{t}{i}\\ \end{array} \]
  5. Add Preprocessing

Alternative 13: 48.0% accurate, 1.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -3.5 \cdot 10^{+119}:\\ \;\;\;\;x\\ \mathbf{elif}\;y \leq -2.6 \cdot 10^{-76}:\\ \;\;\;\;\frac{y \cdot z}{b}\\ \mathbf{elif}\;y \leq 3.6 \cdot 10^{+14}:\\ \;\;\;\;\frac{t}{i}\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (<= y -3.5e+119)
   x
   (if (<= y -2.6e-76) (/ (* y z) b) (if (<= y 3.6e+14) (/ 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 <= -3.5e+119) {
		tmp = x;
	} else if (y <= -2.6e-76) {
		tmp = (y * z) / b;
	} else if (y <= 3.6e+14) {
		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 <= (-3.5d+119)) then
        tmp = x
    else if (y <= (-2.6d-76)) then
        tmp = (y * z) / b
    else if (y <= 3.6d+14) 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 <= -3.5e+119) {
		tmp = x;
	} else if (y <= -2.6e-76) {
		tmp = (y * z) / b;
	} else if (y <= 3.6e+14) {
		tmp = t / i;
	} else {
		tmp = x;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	tmp = 0
	if y <= -3.5e+119:
		tmp = x
	elif y <= -2.6e-76:
		tmp = (y * z) / b
	elif y <= 3.6e+14:
		tmp = t / i
	else:
		tmp = x
	return tmp
function code(x, y, z, t, a, b, c, i)
	tmp = 0.0
	if (y <= -3.5e+119)
		tmp = x;
	elseif (y <= -2.6e-76)
		tmp = Float64(Float64(y * z) / b);
	elseif (y <= 3.6e+14)
		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 <= -3.5e+119)
		tmp = x;
	elseif (y <= -2.6e-76)
		tmp = (y * z) / b;
	elseif (y <= 3.6e+14)
		tmp = t / i;
	else
		tmp = x;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := If[LessEqual[y, -3.5e+119], x, If[LessEqual[y, -2.6e-76], N[(N[(y * z), $MachinePrecision] / b), $MachinePrecision], If[LessEqual[y, 3.6e+14], N[(t / i), $MachinePrecision], x]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -3.5 \cdot 10^{+119}:\\
\;\;\;\;x\\

\mathbf{elif}\;y \leq -2.6 \cdot 10^{-76}:\\
\;\;\;\;\frac{y \cdot z}{b}\\

\mathbf{elif}\;y \leq 3.6 \cdot 10^{+14}:\\
\;\;\;\;\frac{t}{i}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -3.5000000000000001e119 or 3.6e14 < y

    1. Initial program 6.4%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 59.4%

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

    if -3.5000000000000001e119 < y < -2.6e-76

    1. Initial program 68.0%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in x around 0 53.8%

      \[\leadsto \frac{\left(\left(\color{blue}{y \cdot z} + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Taylor expanded in y around 0 45.3%

      \[\leadsto \frac{\left(\left(y \cdot z + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{b \cdot y} + c\right) \cdot y + i} \]
    5. Step-by-step derivation
      1. *-commutative45.3%

        \[\leadsto \frac{\left(\left(y \cdot z + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{y \cdot b} + c\right) \cdot y + i} \]
    6. Simplified45.3%

      \[\leadsto \frac{\left(\left(y \cdot z + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{y \cdot b} + c\right) \cdot y + i} \]
    7. Taylor expanded in y around inf 17.8%

      \[\leadsto \color{blue}{\frac{y \cdot z}{b}} \]

    if -2.6e-76 < y < 3.6e14

    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 63.5%

      \[\leadsto \color{blue}{\frac{t}{i}} \]
  3. Recombined 3 regimes into one program.
  4. Add Preprocessing

Alternative 14: 48.1% accurate, 1.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -3.5 \cdot 10^{+119}:\\ \;\;\;\;x\\ \mathbf{elif}\;y \leq -2.6 \cdot 10^{-76}:\\ \;\;\;\;y \cdot \frac{z}{b}\\ \mathbf{elif}\;y \leq 1.25 \cdot 10^{+17}:\\ \;\;\;\;\frac{t}{i}\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (<= y -3.5e+119)
   x
   (if (<= y -2.6e-76) (* y (/ z b)) (if (<= y 1.25e+17) (/ 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 <= -3.5e+119) {
		tmp = x;
	} else if (y <= -2.6e-76) {
		tmp = y * (z / b);
	} else if (y <= 1.25e+17) {
		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 <= (-3.5d+119)) then
        tmp = x
    else if (y <= (-2.6d-76)) then
        tmp = y * (z / b)
    else if (y <= 1.25d+17) 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 <= -3.5e+119) {
		tmp = x;
	} else if (y <= -2.6e-76) {
		tmp = y * (z / b);
	} else if (y <= 1.25e+17) {
		tmp = t / i;
	} else {
		tmp = x;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	tmp = 0
	if y <= -3.5e+119:
		tmp = x
	elif y <= -2.6e-76:
		tmp = y * (z / b)
	elif y <= 1.25e+17:
		tmp = t / i
	else:
		tmp = x
	return tmp
function code(x, y, z, t, a, b, c, i)
	tmp = 0.0
	if (y <= -3.5e+119)
		tmp = x;
	elseif (y <= -2.6e-76)
		tmp = Float64(y * Float64(z / b));
	elseif (y <= 1.25e+17)
		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 <= -3.5e+119)
		tmp = x;
	elseif (y <= -2.6e-76)
		tmp = y * (z / b);
	elseif (y <= 1.25e+17)
		tmp = t / i;
	else
		tmp = x;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := If[LessEqual[y, -3.5e+119], x, If[LessEqual[y, -2.6e-76], N[(y * N[(z / b), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 1.25e+17], N[(t / i), $MachinePrecision], x]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -3.5 \cdot 10^{+119}:\\
\;\;\;\;x\\

\mathbf{elif}\;y \leq -2.6 \cdot 10^{-76}:\\
\;\;\;\;y \cdot \frac{z}{b}\\

\mathbf{elif}\;y \leq 1.25 \cdot 10^{+17}:\\
\;\;\;\;\frac{t}{i}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -3.5000000000000001e119 or 1.25e17 < y

    1. Initial program 6.4%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 59.4%

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

    if -3.5000000000000001e119 < y < -2.6e-76

    1. Initial program 68.0%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in x around 0 53.8%

      \[\leadsto \frac{\left(\left(\color{blue}{y \cdot z} + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Taylor expanded in y around 0 45.3%

      \[\leadsto \frac{\left(\left(y \cdot z + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{b \cdot y} + c\right) \cdot y + i} \]
    5. Step-by-step derivation
      1. *-commutative45.3%

        \[\leadsto \frac{\left(\left(y \cdot z + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{y \cdot b} + c\right) \cdot y + i} \]
    6. Simplified45.3%

      \[\leadsto \frac{\left(\left(y \cdot z + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{y \cdot b} + c\right) \cdot y + i} \]
    7. Taylor expanded in t around 0 28.6%

      \[\leadsto \color{blue}{\frac{y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}{i + y \cdot \left(c + b \cdot y\right)}} \]
    8. Taylor expanded in y around inf 17.8%

      \[\leadsto \color{blue}{\frac{y \cdot z}{b}} \]
    9. Step-by-step derivation
      1. associate-/l*17.8%

        \[\leadsto \color{blue}{y \cdot \frac{z}{b}} \]
    10. Simplified17.8%

      \[\leadsto \color{blue}{y \cdot \frac{z}{b}} \]

    if -2.6e-76 < y < 1.25e17

    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 63.5%

      \[\leadsto \color{blue}{\frac{t}{i}} \]
  3. Recombined 3 regimes into one program.
  4. Add Preprocessing

Alternative 15: 49.4% accurate, 2.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -4 \cdot 10^{+73}:\\ \;\;\;\;x\\ \mathbf{elif}\;y \leq 3.9 \cdot 10^{+18}:\\ \;\;\;\;\frac{t}{i}\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (<= y -4e+73) x (if (<= y 3.9e+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 <= -4e+73) {
		tmp = x;
	} else if (y <= 3.9e+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 <= (-4d+73)) then
        tmp = x
    else if (y <= 3.9d+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 <= -4e+73) {
		tmp = x;
	} else if (y <= 3.9e+18) {
		tmp = t / i;
	} else {
		tmp = x;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	tmp = 0
	if y <= -4e+73:
		tmp = x
	elif y <= 3.9e+18:
		tmp = t / i
	else:
		tmp = x
	return tmp
function code(x, y, z, t, a, b, c, i)
	tmp = 0.0
	if (y <= -4e+73)
		tmp = x;
	elseif (y <= 3.9e+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 <= -4e+73)
		tmp = x;
	elseif (y <= 3.9e+18)
		tmp = t / i;
	else
		tmp = x;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := If[LessEqual[y, -4e+73], x, If[LessEqual[y, 3.9e+18], N[(t / i), $MachinePrecision], x]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -4 \cdot 10^{+73}:\\
\;\;\;\;x\\

\mathbf{elif}\;y \leq 3.9 \cdot 10^{+18}:\\
\;\;\;\;\frac{t}{i}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -3.99999999999999993e73 or 3.9e18 < 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 55.0%

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

    if -3.99999999999999993e73 < y < 3.9e18

    1. Initial program 95.8%

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

      \[\leadsto \color{blue}{\frac{t}{i}} \]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 16: 25.5% accurate, 33.0× speedup?

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

\\
x
\end{array}
Derivation
  1. Initial program 59.3%

    \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
  2. Add Preprocessing
  3. Taylor expanded in y around inf 24.6%

    \[\leadsto \color{blue}{x} \]
  4. Add Preprocessing

Reproduce

?
herbie shell --seed 2024137 
(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)))