Numeric.SpecFunctions:logGamma from math-functions-0.1.5.2, D

Percentage Accurate: 58.6% → 98.5%
Time: 19.1s
Alternatives: 18
Speedup: 7.4×

Specification

?
\[\begin{array}{l} \\ x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (+
  x
  (/
   (*
    y
    (+ (* (+ (* (+ (* (+ (* z 3.13060547623) 11.1667541262) z) t) z) a) z) b))
   (+
    (* (+ (* (+ (* (+ z 15.234687407) z) 31.4690115749) z) 11.9400905721) z)
    0.607771387771))))
double code(double x, double y, double z, double t, double a, double b) {
	return x + ((y * ((((((((z * 3.13060547623) + 11.1667541262) * z) + t) * z) + a) * z) + b)) / (((((((z + 15.234687407) * z) + 31.4690115749) * z) + 11.9400905721) * z) + 0.607771387771));
}
real(8) function code(x, y, z, t, a, b)
    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
    code = x + ((y * ((((((((z * 3.13060547623d0) + 11.1667541262d0) * z) + t) * z) + a) * z) + b)) / (((((((z + 15.234687407d0) * z) + 31.4690115749d0) * z) + 11.9400905721d0) * z) + 0.607771387771d0))
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	return x + ((y * ((((((((z * 3.13060547623) + 11.1667541262) * z) + t) * z) + a) * z) + b)) / (((((((z + 15.234687407) * z) + 31.4690115749) * z) + 11.9400905721) * z) + 0.607771387771));
}
def code(x, y, z, t, a, b):
	return x + ((y * ((((((((z * 3.13060547623) + 11.1667541262) * z) + t) * z) + a) * z) + b)) / (((((((z + 15.234687407) * z) + 31.4690115749) * z) + 11.9400905721) * z) + 0.607771387771))
function code(x, y, z, t, a, b)
	return Float64(x + Float64(Float64(y * Float64(Float64(Float64(Float64(Float64(Float64(Float64(Float64(z * 3.13060547623) + 11.1667541262) * z) + t) * z) + a) * z) + b)) / Float64(Float64(Float64(Float64(Float64(Float64(Float64(z + 15.234687407) * z) + 31.4690115749) * z) + 11.9400905721) * z) + 0.607771387771)))
end
function tmp = code(x, y, z, t, a, b)
	tmp = x + ((y * ((((((((z * 3.13060547623) + 11.1667541262) * z) + t) * z) + a) * z) + b)) / (((((((z + 15.234687407) * z) + 31.4690115749) * z) + 11.9400905721) * z) + 0.607771387771));
end
code[x_, y_, z_, t_, a_, b_] := N[(x + N[(N[(y * N[(N[(N[(N[(N[(N[(N[(N[(z * 3.13060547623), $MachinePrecision] + 11.1667541262), $MachinePrecision] * z), $MachinePrecision] + t), $MachinePrecision] * z), $MachinePrecision] + a), $MachinePrecision] * z), $MachinePrecision] + b), $MachinePrecision]), $MachinePrecision] / N[(N[(N[(N[(N[(N[(N[(z + 15.234687407), $MachinePrecision] * z), $MachinePrecision] + 31.4690115749), $MachinePrecision] * z), $MachinePrecision] + 11.9400905721), $MachinePrecision] * z), $MachinePrecision] + 0.607771387771), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771}
\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 18 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: 58.6% accurate, 1.0× speedup?

\[\begin{array}{l} \\ x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (+
  x
  (/
   (*
    y
    (+ (* (+ (* (+ (* (+ (* z 3.13060547623) 11.1667541262) z) t) z) a) z) b))
   (+
    (* (+ (* (+ (* (+ z 15.234687407) z) 31.4690115749) z) 11.9400905721) z)
    0.607771387771))))
double code(double x, double y, double z, double t, double a, double b) {
	return x + ((y * ((((((((z * 3.13060547623) + 11.1667541262) * z) + t) * z) + a) * z) + b)) / (((((((z + 15.234687407) * z) + 31.4690115749) * z) + 11.9400905721) * z) + 0.607771387771));
}
real(8) function code(x, y, z, t, a, b)
    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
    code = x + ((y * ((((((((z * 3.13060547623d0) + 11.1667541262d0) * z) + t) * z) + a) * z) + b)) / (((((((z + 15.234687407d0) * z) + 31.4690115749d0) * z) + 11.9400905721d0) * z) + 0.607771387771d0))
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	return x + ((y * ((((((((z * 3.13060547623) + 11.1667541262) * z) + t) * z) + a) * z) + b)) / (((((((z + 15.234687407) * z) + 31.4690115749) * z) + 11.9400905721) * z) + 0.607771387771));
}
def code(x, y, z, t, a, b):
	return x + ((y * ((((((((z * 3.13060547623) + 11.1667541262) * z) + t) * z) + a) * z) + b)) / (((((((z + 15.234687407) * z) + 31.4690115749) * z) + 11.9400905721) * z) + 0.607771387771))
function code(x, y, z, t, a, b)
	return Float64(x + Float64(Float64(y * Float64(Float64(Float64(Float64(Float64(Float64(Float64(Float64(z * 3.13060547623) + 11.1667541262) * z) + t) * z) + a) * z) + b)) / Float64(Float64(Float64(Float64(Float64(Float64(Float64(z + 15.234687407) * z) + 31.4690115749) * z) + 11.9400905721) * z) + 0.607771387771)))
end
function tmp = code(x, y, z, t, a, b)
	tmp = x + ((y * ((((((((z * 3.13060547623) + 11.1667541262) * z) + t) * z) + a) * z) + b)) / (((((((z + 15.234687407) * z) + 31.4690115749) * z) + 11.9400905721) * z) + 0.607771387771));
end
code[x_, y_, z_, t_, a_, b_] := N[(x + N[(N[(y * N[(N[(N[(N[(N[(N[(N[(N[(z * 3.13060547623), $MachinePrecision] + 11.1667541262), $MachinePrecision] * z), $MachinePrecision] + t), $MachinePrecision] * z), $MachinePrecision] + a), $MachinePrecision] * z), $MachinePrecision] + b), $MachinePrecision]), $MachinePrecision] / N[(N[(N[(N[(N[(N[(N[(z + 15.234687407), $MachinePrecision] * z), $MachinePrecision] + 31.4690115749), $MachinePrecision] * z), $MachinePrecision] + 11.9400905721), $MachinePrecision] * z), $MachinePrecision] + 0.607771387771), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771}
\end{array}

Alternative 1: 98.5% accurate, 0.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{y}{\frac{z \cdot z}{t}}\\ t_2 := \frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)\\ \mathbf{if}\;z \leq -3 \cdot 10^{+31}:\\ \;\;\;\;x + \left(y \cdot 3.13060547623 + 0.10203362558171805 \cdot \frac{t_1}{{t_2}^{2}}\right)\\ \mathbf{elif}\;z \leq 9 \cdot 10^{+40}:\\ \;\;\;\;x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), z, t\right), z, a\right), z, b\right)}}\\ \mathbf{else}:\\ \;\;\;\;x + \left(\frac{y}{t_2} + 0.10203362558171805 \cdot \left(t_1 \cdot 9.800690647801265\right)\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (/ y (/ (* z z) t)))
        (t_2
         (+
          (/ 3.7269864963038164 z)
          (- 0.31942702700572795 (/ 3.241970391368047 (* z z))))))
   (if (<= z -3e+31)
     (+
      x
      (+ (* y 3.13060547623) (* 0.10203362558171805 (/ t_1 (pow t_2 2.0)))))
     (if (<= z 9e+40)
       (+
        x
        (/
         y
         (/
          (fma
           (fma (fma (+ z 15.234687407) z 31.4690115749) z 11.9400905721)
           z
           0.607771387771)
          (fma (fma (fma (fma z 3.13060547623 11.1667541262) z t) z a) z b))))
       (+
        x
        (+ (/ y t_2) (* 0.10203362558171805 (* t_1 9.800690647801265))))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = y / ((z * z) / t);
	double t_2 = (3.7269864963038164 / z) + (0.31942702700572795 - (3.241970391368047 / (z * z)));
	double tmp;
	if (z <= -3e+31) {
		tmp = x + ((y * 3.13060547623) + (0.10203362558171805 * (t_1 / pow(t_2, 2.0))));
	} else if (z <= 9e+40) {
		tmp = x + (y / (fma(fma(fma((z + 15.234687407), z, 31.4690115749), z, 11.9400905721), z, 0.607771387771) / fma(fma(fma(fma(z, 3.13060547623, 11.1667541262), z, t), z, a), z, b)));
	} else {
		tmp = x + ((y / t_2) + (0.10203362558171805 * (t_1 * 9.800690647801265)));
	}
	return tmp;
}
function code(x, y, z, t, a, b)
	t_1 = Float64(y / Float64(Float64(z * z) / t))
	t_2 = Float64(Float64(3.7269864963038164 / z) + Float64(0.31942702700572795 - Float64(3.241970391368047 / Float64(z * z))))
	tmp = 0.0
	if (z <= -3e+31)
		tmp = Float64(x + Float64(Float64(y * 3.13060547623) + Float64(0.10203362558171805 * Float64(t_1 / (t_2 ^ 2.0)))));
	elseif (z <= 9e+40)
		tmp = Float64(x + Float64(y / Float64(fma(fma(fma(Float64(z + 15.234687407), z, 31.4690115749), z, 11.9400905721), z, 0.607771387771) / fma(fma(fma(fma(z, 3.13060547623, 11.1667541262), z, t), z, a), z, b))));
	else
		tmp = Float64(x + Float64(Float64(y / t_2) + Float64(0.10203362558171805 * Float64(t_1 * 9.800690647801265))));
	end
	return tmp
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(y / N[(N[(z * z), $MachinePrecision] / t), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(N[(3.7269864963038164 / z), $MachinePrecision] + N[(0.31942702700572795 - N[(3.241970391368047 / N[(z * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[z, -3e+31], N[(x + N[(N[(y * 3.13060547623), $MachinePrecision] + N[(0.10203362558171805 * N[(t$95$1 / N[Power[t$95$2, 2.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, 9e+40], N[(x + N[(y / N[(N[(N[(N[(N[(z + 15.234687407), $MachinePrecision] * z + 31.4690115749), $MachinePrecision] * z + 11.9400905721), $MachinePrecision] * z + 0.607771387771), $MachinePrecision] / N[(N[(N[(N[(z * 3.13060547623 + 11.1667541262), $MachinePrecision] * z + t), $MachinePrecision] * z + a), $MachinePrecision] * z + b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + N[(N[(y / t$95$2), $MachinePrecision] + N[(0.10203362558171805 * N[(t$95$1 * 9.800690647801265), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \frac{y}{\frac{z \cdot z}{t}}\\
t_2 := \frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)\\
\mathbf{if}\;z \leq -3 \cdot 10^{+31}:\\
\;\;\;\;x + \left(y \cdot 3.13060547623 + 0.10203362558171805 \cdot \frac{t_1}{{t_2}^{2}}\right)\\

\mathbf{elif}\;z \leq 9 \cdot 10^{+40}:\\
\;\;\;\;x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), z, t\right), z, a\right), z, b\right)}}\\

\mathbf{else}:\\
\;\;\;\;x + \left(\frac{y}{t_2} + 0.10203362558171805 \cdot \left(t_1 \cdot 9.800690647801265\right)\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if z < -2.99999999999999989e31

    1. Initial program 7.3%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Step-by-step derivation
      1. associate-/l*13.3%

        \[\leadsto x + \color{blue}{\frac{y}{\frac{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}}} \]
      2. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\color{blue}{\mathsf{fma}\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721, z, 0.607771387771\right)}}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      3. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749, z, 11.9400905721\right)}, z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      4. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right)}, z, 11.9400905721\right), z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      5. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\color{blue}{\mathsf{fma}\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a, z, b\right)}}} \]
      6. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t, z, a\right)}, z, b\right)}} \]
      7. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z \cdot 3.13060547623 + 11.1667541262, z, t\right)}, z, a\right), z, b\right)}} \]
      8. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right)}, z, t\right), z, a\right), z, b\right)}} \]
    3. Simplified13.3%

      \[\leadsto \color{blue}{x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), z, t\right), z, a\right), z, b\right)}}} \]
    4. Taylor expanded in z around inf 86.1%

      \[\leadsto x + \frac{y}{\color{blue}{3.7269864963038164 \cdot \frac{1}{z} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)}} \]
    5. Step-by-step derivation
      1. associate-*r/86.1%

        \[\leadsto x + \frac{y}{\color{blue}{\frac{3.7269864963038164 \cdot 1}{z}} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)} \]
      2. metadata-eval86.1%

        \[\leadsto x + \frac{y}{\frac{\color{blue}{3.7269864963038164}}{z} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)} \]
      3. mul-1-neg86.1%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \color{blue}{\left(-\frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)}\right)} \]
      4. *-commutative86.1%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + \color{blue}{t \cdot 0.10203362558171805}}{{z}^{2}}\right)\right)} \]
      5. unpow286.1%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + t \cdot 0.10203362558171805}{\color{blue}{z \cdot z}}\right)\right)} \]
    6. Simplified86.1%

      \[\leadsto x + \frac{y}{\color{blue}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + t \cdot 0.10203362558171805}{z \cdot z}\right)\right)}} \]
    7. Taylor expanded in t around 0 83.0%

      \[\leadsto x + \color{blue}{\left(\frac{y}{\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right)} \]
    8. Step-by-step derivation
      1. associate--l+83.0%

        \[\leadsto x + \left(\frac{y}{\color{blue}{3.7269864963038164 \cdot \frac{1}{z} + \left(0.31942702700572795 - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      2. associate-*r/83.0%

        \[\leadsto x + \left(\frac{y}{\color{blue}{\frac{3.7269864963038164 \cdot 1}{z}} + \left(0.31942702700572795 - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      3. metadata-eval83.0%

        \[\leadsto x + \left(\frac{y}{\frac{\color{blue}{3.7269864963038164}}{z} + \left(0.31942702700572795 - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      4. associate-*r/83.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \color{blue}{\frac{3.241970391368047 \cdot 1}{{z}^{2}}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      5. metadata-eval83.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{\color{blue}{3.241970391368047}}{{z}^{2}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      6. unpow283.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{\color{blue}{z \cdot z}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      7. associate-/r*83.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \color{blue}{\frac{\frac{y \cdot t}{{z}^{2}}}{{\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}}\right) \]
      8. associate-/l*97.1%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \frac{\color{blue}{\frac{y}{\frac{{z}^{2}}{t}}}}{{\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      9. unpow297.1%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{\color{blue}{z \cdot z}}{t}}}{{\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
    9. Simplified97.1%

      \[\leadsto x + \color{blue}{\left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{z \cdot z}{t}}}{{\left(\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)\right)}^{2}}\right)} \]
    10. Taylor expanded in z around inf 97.1%

      \[\leadsto x + \left(\color{blue}{3.13060547623 \cdot y} + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{z \cdot z}{t}}}{{\left(\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)\right)}^{2}}\right) \]
    11. Step-by-step derivation
      1. *-commutative97.1%

        \[\leadsto x + \left(\color{blue}{y \cdot 3.13060547623} + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{z \cdot z}{t}}}{{\left(\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)\right)}^{2}}\right) \]
    12. Simplified97.1%

      \[\leadsto x + \left(\color{blue}{y \cdot 3.13060547623} + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{z \cdot z}{t}}}{{\left(\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)\right)}^{2}}\right) \]

    if -2.99999999999999989e31 < z < 9.00000000000000064e40

    1. Initial program 99.7%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Step-by-step derivation
      1. associate-/l*99.7%

        \[\leadsto x + \color{blue}{\frac{y}{\frac{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}}} \]
      2. fma-def99.7%

        \[\leadsto x + \frac{y}{\frac{\color{blue}{\mathsf{fma}\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721, z, 0.607771387771\right)}}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      3. fma-def99.7%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749, z, 11.9400905721\right)}, z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      4. fma-def99.8%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right)}, z, 11.9400905721\right), z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      5. fma-def99.7%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\color{blue}{\mathsf{fma}\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a, z, b\right)}}} \]
      6. fma-def99.7%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t, z, a\right)}, z, b\right)}} \]
      7. fma-def99.7%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z \cdot 3.13060547623 + 11.1667541262, z, t\right)}, z, a\right), z, b\right)}} \]
      8. fma-def99.7%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right)}, z, t\right), z, a\right), z, b\right)}} \]
    3. Simplified99.7%

      \[\leadsto \color{blue}{x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), z, t\right), z, a\right), z, b\right)}}} \]

    if 9.00000000000000064e40 < z

    1. Initial program 6.4%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Step-by-step derivation
      1. associate-/l*8.4%

        \[\leadsto x + \color{blue}{\frac{y}{\frac{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}}} \]
      2. fma-def8.4%

        \[\leadsto x + \frac{y}{\frac{\color{blue}{\mathsf{fma}\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721, z, 0.607771387771\right)}}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      3. fma-def8.4%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749, z, 11.9400905721\right)}, z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      4. fma-def8.4%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right)}, z, 11.9400905721\right), z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      5. fma-def8.4%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\color{blue}{\mathsf{fma}\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a, z, b\right)}}} \]
      6. fma-def8.4%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t, z, a\right)}, z, b\right)}} \]
      7. fma-def8.4%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z \cdot 3.13060547623 + 11.1667541262, z, t\right)}, z, a\right), z, b\right)}} \]
      8. fma-def8.4%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right)}, z, t\right), z, a\right), z, b\right)}} \]
    3. Simplified8.4%

      \[\leadsto \color{blue}{x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), z, t\right), z, a\right), z, b\right)}}} \]
    4. Taylor expanded in z around inf 88.2%

      \[\leadsto x + \frac{y}{\color{blue}{3.7269864963038164 \cdot \frac{1}{z} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)}} \]
    5. Step-by-step derivation
      1. associate-*r/88.2%

        \[\leadsto x + \frac{y}{\color{blue}{\frac{3.7269864963038164 \cdot 1}{z}} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)} \]
      2. metadata-eval88.2%

        \[\leadsto x + \frac{y}{\frac{\color{blue}{3.7269864963038164}}{z} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)} \]
      3. mul-1-neg88.2%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \color{blue}{\left(-\frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)}\right)} \]
      4. *-commutative88.2%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + \color{blue}{t \cdot 0.10203362558171805}}{{z}^{2}}\right)\right)} \]
      5. unpow288.2%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + t \cdot 0.10203362558171805}{\color{blue}{z \cdot z}}\right)\right)} \]
    6. Simplified88.2%

      \[\leadsto x + \frac{y}{\color{blue}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + t \cdot 0.10203362558171805}{z \cdot z}\right)\right)}} \]
    7. Taylor expanded in t around 0 81.6%

      \[\leadsto x + \color{blue}{\left(\frac{y}{\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right)} \]
    8. Step-by-step derivation
      1. associate--l+81.6%

        \[\leadsto x + \left(\frac{y}{\color{blue}{3.7269864963038164 \cdot \frac{1}{z} + \left(0.31942702700572795 - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      2. associate-*r/81.6%

        \[\leadsto x + \left(\frac{y}{\color{blue}{\frac{3.7269864963038164 \cdot 1}{z}} + \left(0.31942702700572795 - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      3. metadata-eval81.6%

        \[\leadsto x + \left(\frac{y}{\frac{\color{blue}{3.7269864963038164}}{z} + \left(0.31942702700572795 - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      4. associate-*r/81.6%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \color{blue}{\frac{3.241970391368047 \cdot 1}{{z}^{2}}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      5. metadata-eval81.6%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{\color{blue}{3.241970391368047}}{{z}^{2}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      6. unpow281.6%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{\color{blue}{z \cdot z}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      7. associate-/r*81.6%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \color{blue}{\frac{\frac{y \cdot t}{{z}^{2}}}{{\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}}\right) \]
      8. associate-/l*100.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \frac{\color{blue}{\frac{y}{\frac{{z}^{2}}{t}}}}{{\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      9. unpow2100.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{\color{blue}{z \cdot z}}{t}}}{{\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
    9. Simplified100.0%

      \[\leadsto x + \color{blue}{\left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{z \cdot z}{t}}}{{\left(\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)\right)}^{2}}\right)} \]
    10. Taylor expanded in z around inf 81.6%

      \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \color{blue}{\left(9.800690647801265 \cdot \frac{y \cdot t}{{z}^{2}}\right)}\right) \]
    11. Step-by-step derivation
      1. associate-/l*100.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \left(9.800690647801265 \cdot \color{blue}{\frac{y}{\frac{{z}^{2}}{t}}}\right)\right) \]
      2. unpow2100.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \left(9.800690647801265 \cdot \frac{y}{\frac{\color{blue}{z \cdot z}}{t}}\right)\right) \]
    12. Simplified100.0%

      \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \color{blue}{\left(9.800690647801265 \cdot \frac{y}{\frac{z \cdot z}{t}}\right)}\right) \]
  3. Recombined 3 regimes into one program.
  4. Final simplification99.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -3 \cdot 10^{+31}:\\ \;\;\;\;x + \left(y \cdot 3.13060547623 + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{z \cdot z}{t}}}{{\left(\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)\right)}^{2}}\right)\\ \mathbf{elif}\;z \leq 9 \cdot 10^{+40}:\\ \;\;\;\;x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), z, t\right), z, a\right), z, b\right)}}\\ \mathbf{else}:\\ \;\;\;\;x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \left(\frac{y}{\frac{z \cdot z}{t}} \cdot 9.800690647801265\right)\right)\\ \end{array} \]

Alternative 2: 98.3% accurate, 0.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{y}{\frac{z \cdot z}{t}}\\ t_2 := \frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)\\ \mathbf{if}\;z \leq -3.2 \cdot 10^{+31}:\\ \;\;\;\;x + \left(y \cdot 3.13060547623 + 0.10203362558171805 \cdot \frac{t_1}{{t_2}^{2}}\right)\\ \mathbf{elif}\;z \leq 8.6 \cdot 10^{+40}:\\ \;\;\;\;x + \frac{y}{0.607771387771 + z \cdot \left(11.9400905721 + z \cdot \left(31.4690115749 + z \cdot \left(z + 15.234687407\right)\right)\right)} \cdot \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right)\\ \mathbf{else}:\\ \;\;\;\;x + \left(\frac{y}{t_2} + 0.10203362558171805 \cdot \left(t_1 \cdot 9.800690647801265\right)\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (/ y (/ (* z z) t)))
        (t_2
         (+
          (/ 3.7269864963038164 z)
          (- 0.31942702700572795 (/ 3.241970391368047 (* z z))))))
   (if (<= z -3.2e+31)
     (+
      x
      (+ (* y 3.13060547623) (* 0.10203362558171805 (/ t_1 (pow t_2 2.0)))))
     (if (<= z 8.6e+40)
       (+
        x
        (*
         (/
          y
          (+
           0.607771387771
           (*
            z
            (+
             11.9400905721
             (* z (+ 31.4690115749 (* z (+ z 15.234687407))))))))
         (fma z (fma z (fma z (fma z 3.13060547623 11.1667541262) t) a) b)))
       (+
        x
        (+ (/ y t_2) (* 0.10203362558171805 (* t_1 9.800690647801265))))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = y / ((z * z) / t);
	double t_2 = (3.7269864963038164 / z) + (0.31942702700572795 - (3.241970391368047 / (z * z)));
	double tmp;
	if (z <= -3.2e+31) {
		tmp = x + ((y * 3.13060547623) + (0.10203362558171805 * (t_1 / pow(t_2, 2.0))));
	} else if (z <= 8.6e+40) {
		tmp = x + ((y / (0.607771387771 + (z * (11.9400905721 + (z * (31.4690115749 + (z * (z + 15.234687407)))))))) * fma(z, fma(z, fma(z, fma(z, 3.13060547623, 11.1667541262), t), a), b));
	} else {
		tmp = x + ((y / t_2) + (0.10203362558171805 * (t_1 * 9.800690647801265)));
	}
	return tmp;
}
function code(x, y, z, t, a, b)
	t_1 = Float64(y / Float64(Float64(z * z) / t))
	t_2 = Float64(Float64(3.7269864963038164 / z) + Float64(0.31942702700572795 - Float64(3.241970391368047 / Float64(z * z))))
	tmp = 0.0
	if (z <= -3.2e+31)
		tmp = Float64(x + Float64(Float64(y * 3.13060547623) + Float64(0.10203362558171805 * Float64(t_1 / (t_2 ^ 2.0)))));
	elseif (z <= 8.6e+40)
		tmp = Float64(x + Float64(Float64(y / Float64(0.607771387771 + Float64(z * Float64(11.9400905721 + Float64(z * Float64(31.4690115749 + Float64(z * Float64(z + 15.234687407)))))))) * fma(z, fma(z, fma(z, fma(z, 3.13060547623, 11.1667541262), t), a), b)));
	else
		tmp = Float64(x + Float64(Float64(y / t_2) + Float64(0.10203362558171805 * Float64(t_1 * 9.800690647801265))));
	end
	return tmp
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(y / N[(N[(z * z), $MachinePrecision] / t), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(N[(3.7269864963038164 / z), $MachinePrecision] + N[(0.31942702700572795 - N[(3.241970391368047 / N[(z * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[z, -3.2e+31], N[(x + N[(N[(y * 3.13060547623), $MachinePrecision] + N[(0.10203362558171805 * N[(t$95$1 / N[Power[t$95$2, 2.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, 8.6e+40], N[(x + N[(N[(y / N[(0.607771387771 + N[(z * N[(11.9400905721 + N[(z * N[(31.4690115749 + N[(z * N[(z + 15.234687407), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * N[(z * N[(z * N[(z * N[(z * 3.13060547623 + 11.1667541262), $MachinePrecision] + t), $MachinePrecision] + a), $MachinePrecision] + b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + N[(N[(y / t$95$2), $MachinePrecision] + N[(0.10203362558171805 * N[(t$95$1 * 9.800690647801265), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \frac{y}{\frac{z \cdot z}{t}}\\
t_2 := \frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)\\
\mathbf{if}\;z \leq -3.2 \cdot 10^{+31}:\\
\;\;\;\;x + \left(y \cdot 3.13060547623 + 0.10203362558171805 \cdot \frac{t_1}{{t_2}^{2}}\right)\\

\mathbf{elif}\;z \leq 8.6 \cdot 10^{+40}:\\
\;\;\;\;x + \frac{y}{0.607771387771 + z \cdot \left(11.9400905721 + z \cdot \left(31.4690115749 + z \cdot \left(z + 15.234687407\right)\right)\right)} \cdot \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right)\\

\mathbf{else}:\\
\;\;\;\;x + \left(\frac{y}{t_2} + 0.10203362558171805 \cdot \left(t_1 \cdot 9.800690647801265\right)\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if z < -3.2000000000000001e31

    1. Initial program 7.3%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Step-by-step derivation
      1. associate-/l*13.3%

        \[\leadsto x + \color{blue}{\frac{y}{\frac{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}}} \]
      2. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\color{blue}{\mathsf{fma}\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721, z, 0.607771387771\right)}}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      3. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749, z, 11.9400905721\right)}, z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      4. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right)}, z, 11.9400905721\right), z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      5. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\color{blue}{\mathsf{fma}\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a, z, b\right)}}} \]
      6. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t, z, a\right)}, z, b\right)}} \]
      7. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z \cdot 3.13060547623 + 11.1667541262, z, t\right)}, z, a\right), z, b\right)}} \]
      8. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right)}, z, t\right), z, a\right), z, b\right)}} \]
    3. Simplified13.3%

      \[\leadsto \color{blue}{x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), z, t\right), z, a\right), z, b\right)}}} \]
    4. Taylor expanded in z around inf 86.1%

      \[\leadsto x + \frac{y}{\color{blue}{3.7269864963038164 \cdot \frac{1}{z} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)}} \]
    5. Step-by-step derivation
      1. associate-*r/86.1%

        \[\leadsto x + \frac{y}{\color{blue}{\frac{3.7269864963038164 \cdot 1}{z}} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)} \]
      2. metadata-eval86.1%

        \[\leadsto x + \frac{y}{\frac{\color{blue}{3.7269864963038164}}{z} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)} \]
      3. mul-1-neg86.1%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \color{blue}{\left(-\frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)}\right)} \]
      4. *-commutative86.1%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + \color{blue}{t \cdot 0.10203362558171805}}{{z}^{2}}\right)\right)} \]
      5. unpow286.1%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + t \cdot 0.10203362558171805}{\color{blue}{z \cdot z}}\right)\right)} \]
    6. Simplified86.1%

      \[\leadsto x + \frac{y}{\color{blue}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + t \cdot 0.10203362558171805}{z \cdot z}\right)\right)}} \]
    7. Taylor expanded in t around 0 83.0%

      \[\leadsto x + \color{blue}{\left(\frac{y}{\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right)} \]
    8. Step-by-step derivation
      1. associate--l+83.0%

        \[\leadsto x + \left(\frac{y}{\color{blue}{3.7269864963038164 \cdot \frac{1}{z} + \left(0.31942702700572795 - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      2. associate-*r/83.0%

        \[\leadsto x + \left(\frac{y}{\color{blue}{\frac{3.7269864963038164 \cdot 1}{z}} + \left(0.31942702700572795 - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      3. metadata-eval83.0%

        \[\leadsto x + \left(\frac{y}{\frac{\color{blue}{3.7269864963038164}}{z} + \left(0.31942702700572795 - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      4. associate-*r/83.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \color{blue}{\frac{3.241970391368047 \cdot 1}{{z}^{2}}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      5. metadata-eval83.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{\color{blue}{3.241970391368047}}{{z}^{2}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      6. unpow283.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{\color{blue}{z \cdot z}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      7. associate-/r*83.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \color{blue}{\frac{\frac{y \cdot t}{{z}^{2}}}{{\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}}\right) \]
      8. associate-/l*97.1%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \frac{\color{blue}{\frac{y}{\frac{{z}^{2}}{t}}}}{{\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      9. unpow297.1%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{\color{blue}{z \cdot z}}{t}}}{{\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
    9. Simplified97.1%

      \[\leadsto x + \color{blue}{\left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{z \cdot z}{t}}}{{\left(\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)\right)}^{2}}\right)} \]
    10. Taylor expanded in z around inf 97.1%

      \[\leadsto x + \left(\color{blue}{3.13060547623 \cdot y} + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{z \cdot z}{t}}}{{\left(\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)\right)}^{2}}\right) \]
    11. Step-by-step derivation
      1. *-commutative97.1%

        \[\leadsto x + \left(\color{blue}{y \cdot 3.13060547623} + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{z \cdot z}{t}}}{{\left(\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)\right)}^{2}}\right) \]
    12. Simplified97.1%

      \[\leadsto x + \left(\color{blue}{y \cdot 3.13060547623} + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{z \cdot z}{t}}}{{\left(\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)\right)}^{2}}\right) \]

    if -3.2000000000000001e31 < z < 8.6000000000000005e40

    1. Initial program 99.7%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Step-by-step derivation
      1. associate-*l/99.8%

        \[\leadsto x + \color{blue}{\frac{y}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)} \]
      2. *-commutative99.8%

        \[\leadsto x + \frac{y}{\color{blue}{z \cdot \left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right)} + 0.607771387771} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      3. fma-def99.8%

        \[\leadsto x + \frac{y}{\color{blue}{\mathsf{fma}\left(z, \left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721, 0.607771387771\right)}} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      4. *-commutative99.8%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \color{blue}{z \cdot \left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right)} + 11.9400905721, 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      5. fma-def99.8%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \color{blue}{\mathsf{fma}\left(z, \left(z + 15.234687407\right) \cdot z + 31.4690115749, 11.9400905721\right)}, 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      6. *-commutative99.8%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \color{blue}{z \cdot \left(z + 15.234687407\right)} + 31.4690115749, 11.9400905721\right), 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      7. fma-def99.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \color{blue}{\mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right)}, 11.9400905721\right), 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      8. *-commutative99.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)} \cdot \left(\color{blue}{z \cdot \left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right)} + b\right) \]
      9. fma-def99.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)} \cdot \color{blue}{\mathsf{fma}\left(z, \left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a, b\right)} \]
    3. Simplified99.7%

      \[\leadsto \color{blue}{x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)} \cdot \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right)} \]
    4. Taylor expanded in y around 0 99.7%

      \[\leadsto x + \color{blue}{\frac{y}{0.607771387771 + \left(11.9400905721 + z \cdot \left(31.4690115749 + \left(15.234687407 + z\right) \cdot z\right)\right) \cdot z}} \cdot \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right) \]

    if 8.6000000000000005e40 < z

    1. Initial program 6.4%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Step-by-step derivation
      1. associate-/l*8.4%

        \[\leadsto x + \color{blue}{\frac{y}{\frac{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}}} \]
      2. fma-def8.4%

        \[\leadsto x + \frac{y}{\frac{\color{blue}{\mathsf{fma}\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721, z, 0.607771387771\right)}}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      3. fma-def8.4%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749, z, 11.9400905721\right)}, z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      4. fma-def8.4%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right)}, z, 11.9400905721\right), z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      5. fma-def8.4%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\color{blue}{\mathsf{fma}\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a, z, b\right)}}} \]
      6. fma-def8.4%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t, z, a\right)}, z, b\right)}} \]
      7. fma-def8.4%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z \cdot 3.13060547623 + 11.1667541262, z, t\right)}, z, a\right), z, b\right)}} \]
      8. fma-def8.4%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right)}, z, t\right), z, a\right), z, b\right)}} \]
    3. Simplified8.4%

      \[\leadsto \color{blue}{x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), z, t\right), z, a\right), z, b\right)}}} \]
    4. Taylor expanded in z around inf 88.2%

      \[\leadsto x + \frac{y}{\color{blue}{3.7269864963038164 \cdot \frac{1}{z} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)}} \]
    5. Step-by-step derivation
      1. associate-*r/88.2%

        \[\leadsto x + \frac{y}{\color{blue}{\frac{3.7269864963038164 \cdot 1}{z}} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)} \]
      2. metadata-eval88.2%

        \[\leadsto x + \frac{y}{\frac{\color{blue}{3.7269864963038164}}{z} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)} \]
      3. mul-1-neg88.2%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \color{blue}{\left(-\frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)}\right)} \]
      4. *-commutative88.2%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + \color{blue}{t \cdot 0.10203362558171805}}{{z}^{2}}\right)\right)} \]
      5. unpow288.2%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + t \cdot 0.10203362558171805}{\color{blue}{z \cdot z}}\right)\right)} \]
    6. Simplified88.2%

      \[\leadsto x + \frac{y}{\color{blue}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + t \cdot 0.10203362558171805}{z \cdot z}\right)\right)}} \]
    7. Taylor expanded in t around 0 81.6%

      \[\leadsto x + \color{blue}{\left(\frac{y}{\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right)} \]
    8. Step-by-step derivation
      1. associate--l+81.6%

        \[\leadsto x + \left(\frac{y}{\color{blue}{3.7269864963038164 \cdot \frac{1}{z} + \left(0.31942702700572795 - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      2. associate-*r/81.6%

        \[\leadsto x + \left(\frac{y}{\color{blue}{\frac{3.7269864963038164 \cdot 1}{z}} + \left(0.31942702700572795 - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      3. metadata-eval81.6%

        \[\leadsto x + \left(\frac{y}{\frac{\color{blue}{3.7269864963038164}}{z} + \left(0.31942702700572795 - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      4. associate-*r/81.6%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \color{blue}{\frac{3.241970391368047 \cdot 1}{{z}^{2}}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      5. metadata-eval81.6%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{\color{blue}{3.241970391368047}}{{z}^{2}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      6. unpow281.6%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{\color{blue}{z \cdot z}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      7. associate-/r*81.6%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \color{blue}{\frac{\frac{y \cdot t}{{z}^{2}}}{{\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}}\right) \]
      8. associate-/l*100.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \frac{\color{blue}{\frac{y}{\frac{{z}^{2}}{t}}}}{{\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      9. unpow2100.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{\color{blue}{z \cdot z}}{t}}}{{\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
    9. Simplified100.0%

      \[\leadsto x + \color{blue}{\left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{z \cdot z}{t}}}{{\left(\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)\right)}^{2}}\right)} \]
    10. Taylor expanded in z around inf 81.6%

      \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \color{blue}{\left(9.800690647801265 \cdot \frac{y \cdot t}{{z}^{2}}\right)}\right) \]
    11. Step-by-step derivation
      1. associate-/l*100.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \left(9.800690647801265 \cdot \color{blue}{\frac{y}{\frac{{z}^{2}}{t}}}\right)\right) \]
      2. unpow2100.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \left(9.800690647801265 \cdot \frac{y}{\frac{\color{blue}{z \cdot z}}{t}}\right)\right) \]
    12. Simplified100.0%

      \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \color{blue}{\left(9.800690647801265 \cdot \frac{y}{\frac{z \cdot z}{t}}\right)}\right) \]
  3. Recombined 3 regimes into one program.
  4. Final simplification99.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -3.2 \cdot 10^{+31}:\\ \;\;\;\;x + \left(y \cdot 3.13060547623 + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{z \cdot z}{t}}}{{\left(\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)\right)}^{2}}\right)\\ \mathbf{elif}\;z \leq 8.6 \cdot 10^{+40}:\\ \;\;\;\;x + \frac{y}{0.607771387771 + z \cdot \left(11.9400905721 + z \cdot \left(31.4690115749 + z \cdot \left(z + 15.234687407\right)\right)\right)} \cdot \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right)\\ \mathbf{else}:\\ \;\;\;\;x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \left(\frac{y}{\frac{z \cdot z}{t}} \cdot 9.800690647801265\right)\right)\\ \end{array} \]

Alternative 3: 98.1% accurate, 0.2× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{y}{\frac{z \cdot z}{t}}\\ t_2 := \frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)\\ \mathbf{if}\;z \leq -1.36 \cdot 10^{+28}:\\ \;\;\;\;x + \left(y \cdot 3.13060547623 + 0.10203362558171805 \cdot \frac{t_1}{{t_2}^{2}}\right)\\ \mathbf{elif}\;z \leq 7.6 \cdot 10^{+40}:\\ \;\;\;\;x + \frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(11.1667541262 + z \cdot 3.13060547623\right)\right)\right)\right)}{0.607771387771 + z \cdot \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right)}\\ \mathbf{else}:\\ \;\;\;\;x + \left(\frac{y}{t_2} + 0.10203362558171805 \cdot \left(t_1 \cdot 9.800690647801265\right)\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (/ y (/ (* z z) t)))
        (t_2
         (+
          (/ 3.7269864963038164 z)
          (- 0.31942702700572795 (/ 3.241970391368047 (* z z))))))
   (if (<= z -1.36e+28)
     (+
      x
      (+ (* y 3.13060547623) (* 0.10203362558171805 (/ t_1 (pow t_2 2.0)))))
     (if (<= z 7.6e+40)
       (+
        x
        (/
         (*
          y
          (+
           b
           (*
            z
            (+ a (* z (+ t (* z (+ 11.1667541262 (* z 3.13060547623)))))))))
         (+
          0.607771387771
          (*
           z
           (fma z (fma z (+ z 15.234687407) 31.4690115749) 11.9400905721)))))
       (+
        x
        (+ (/ y t_2) (* 0.10203362558171805 (* t_1 9.800690647801265))))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = y / ((z * z) / t);
	double t_2 = (3.7269864963038164 / z) + (0.31942702700572795 - (3.241970391368047 / (z * z)));
	double tmp;
	if (z <= -1.36e+28) {
		tmp = x + ((y * 3.13060547623) + (0.10203362558171805 * (t_1 / pow(t_2, 2.0))));
	} else if (z <= 7.6e+40) {
		tmp = x + ((y * (b + (z * (a + (z * (t + (z * (11.1667541262 + (z * 3.13060547623))))))))) / (0.607771387771 + (z * fma(z, fma(z, (z + 15.234687407), 31.4690115749), 11.9400905721))));
	} else {
		tmp = x + ((y / t_2) + (0.10203362558171805 * (t_1 * 9.800690647801265)));
	}
	return tmp;
}
function code(x, y, z, t, a, b)
	t_1 = Float64(y / Float64(Float64(z * z) / t))
	t_2 = Float64(Float64(3.7269864963038164 / z) + Float64(0.31942702700572795 - Float64(3.241970391368047 / Float64(z * z))))
	tmp = 0.0
	if (z <= -1.36e+28)
		tmp = Float64(x + Float64(Float64(y * 3.13060547623) + Float64(0.10203362558171805 * Float64(t_1 / (t_2 ^ 2.0)))));
	elseif (z <= 7.6e+40)
		tmp = Float64(x + Float64(Float64(y * Float64(b + Float64(z * Float64(a + Float64(z * Float64(t + Float64(z * Float64(11.1667541262 + Float64(z * 3.13060547623))))))))) / Float64(0.607771387771 + Float64(z * fma(z, fma(z, Float64(z + 15.234687407), 31.4690115749), 11.9400905721)))));
	else
		tmp = Float64(x + Float64(Float64(y / t_2) + Float64(0.10203362558171805 * Float64(t_1 * 9.800690647801265))));
	end
	return tmp
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(y / N[(N[(z * z), $MachinePrecision] / t), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(N[(3.7269864963038164 / z), $MachinePrecision] + N[(0.31942702700572795 - N[(3.241970391368047 / N[(z * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[z, -1.36e+28], N[(x + N[(N[(y * 3.13060547623), $MachinePrecision] + N[(0.10203362558171805 * N[(t$95$1 / N[Power[t$95$2, 2.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, 7.6e+40], N[(x + N[(N[(y * N[(b + N[(z * N[(a + N[(z * N[(t + N[(z * N[(11.1667541262 + N[(z * 3.13060547623), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(0.607771387771 + N[(z * N[(z * N[(z * N[(z + 15.234687407), $MachinePrecision] + 31.4690115749), $MachinePrecision] + 11.9400905721), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + N[(N[(y / t$95$2), $MachinePrecision] + N[(0.10203362558171805 * N[(t$95$1 * 9.800690647801265), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \frac{y}{\frac{z \cdot z}{t}}\\
t_2 := \frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)\\
\mathbf{if}\;z \leq -1.36 \cdot 10^{+28}:\\
\;\;\;\;x + \left(y \cdot 3.13060547623 + 0.10203362558171805 \cdot \frac{t_1}{{t_2}^{2}}\right)\\

\mathbf{elif}\;z \leq 7.6 \cdot 10^{+40}:\\
\;\;\;\;x + \frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(11.1667541262 + z \cdot 3.13060547623\right)\right)\right)\right)}{0.607771387771 + z \cdot \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right)}\\

\mathbf{else}:\\
\;\;\;\;x + \left(\frac{y}{t_2} + 0.10203362558171805 \cdot \left(t_1 \cdot 9.800690647801265\right)\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if z < -1.36e28

    1. Initial program 7.3%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Step-by-step derivation
      1. associate-/l*13.3%

        \[\leadsto x + \color{blue}{\frac{y}{\frac{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}}} \]
      2. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\color{blue}{\mathsf{fma}\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721, z, 0.607771387771\right)}}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      3. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749, z, 11.9400905721\right)}, z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      4. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right)}, z, 11.9400905721\right), z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      5. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\color{blue}{\mathsf{fma}\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a, z, b\right)}}} \]
      6. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t, z, a\right)}, z, b\right)}} \]
      7. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z \cdot 3.13060547623 + 11.1667541262, z, t\right)}, z, a\right), z, b\right)}} \]
      8. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right)}, z, t\right), z, a\right), z, b\right)}} \]
    3. Simplified13.3%

      \[\leadsto \color{blue}{x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), z, t\right), z, a\right), z, b\right)}}} \]
    4. Taylor expanded in z around inf 86.1%

      \[\leadsto x + \frac{y}{\color{blue}{3.7269864963038164 \cdot \frac{1}{z} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)}} \]
    5. Step-by-step derivation
      1. associate-*r/86.1%

        \[\leadsto x + \frac{y}{\color{blue}{\frac{3.7269864963038164 \cdot 1}{z}} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)} \]
      2. metadata-eval86.1%

        \[\leadsto x + \frac{y}{\frac{\color{blue}{3.7269864963038164}}{z} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)} \]
      3. mul-1-neg86.1%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \color{blue}{\left(-\frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)}\right)} \]
      4. *-commutative86.1%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + \color{blue}{t \cdot 0.10203362558171805}}{{z}^{2}}\right)\right)} \]
      5. unpow286.1%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + t \cdot 0.10203362558171805}{\color{blue}{z \cdot z}}\right)\right)} \]
    6. Simplified86.1%

      \[\leadsto x + \frac{y}{\color{blue}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + t \cdot 0.10203362558171805}{z \cdot z}\right)\right)}} \]
    7. Taylor expanded in t around 0 83.0%

      \[\leadsto x + \color{blue}{\left(\frac{y}{\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right)} \]
    8. Step-by-step derivation
      1. associate--l+83.0%

        \[\leadsto x + \left(\frac{y}{\color{blue}{3.7269864963038164 \cdot \frac{1}{z} + \left(0.31942702700572795 - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      2. associate-*r/83.0%

        \[\leadsto x + \left(\frac{y}{\color{blue}{\frac{3.7269864963038164 \cdot 1}{z}} + \left(0.31942702700572795 - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      3. metadata-eval83.0%

        \[\leadsto x + \left(\frac{y}{\frac{\color{blue}{3.7269864963038164}}{z} + \left(0.31942702700572795 - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      4. associate-*r/83.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \color{blue}{\frac{3.241970391368047 \cdot 1}{{z}^{2}}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      5. metadata-eval83.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{\color{blue}{3.241970391368047}}{{z}^{2}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      6. unpow283.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{\color{blue}{z \cdot z}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      7. associate-/r*83.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \color{blue}{\frac{\frac{y \cdot t}{{z}^{2}}}{{\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}}\right) \]
      8. associate-/l*97.1%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \frac{\color{blue}{\frac{y}{\frac{{z}^{2}}{t}}}}{{\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      9. unpow297.1%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{\color{blue}{z \cdot z}}{t}}}{{\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
    9. Simplified97.1%

      \[\leadsto x + \color{blue}{\left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{z \cdot z}{t}}}{{\left(\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)\right)}^{2}}\right)} \]
    10. Taylor expanded in z around inf 97.1%

      \[\leadsto x + \left(\color{blue}{3.13060547623 \cdot y} + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{z \cdot z}{t}}}{{\left(\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)\right)}^{2}}\right) \]
    11. Step-by-step derivation
      1. *-commutative97.1%

        \[\leadsto x + \left(\color{blue}{y \cdot 3.13060547623} + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{z \cdot z}{t}}}{{\left(\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)\right)}^{2}}\right) \]
    12. Simplified97.1%

      \[\leadsto x + \left(\color{blue}{y \cdot 3.13060547623} + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{z \cdot z}{t}}}{{\left(\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)\right)}^{2}}\right) \]

    if -1.36e28 < z < 7.60000000000000009e40

    1. Initial program 99.7%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Step-by-step derivation
      1. expm1-log1p-u99.6%

        \[\leadsto x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\color{blue}{\mathsf{expm1}\left(\mathsf{log1p}\left(\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z\right)\right)} + 0.607771387771} \]
      2. expm1-udef99.6%

        \[\leadsto x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\color{blue}{\left(e^{\mathsf{log1p}\left(\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z\right)} - 1\right)} + 0.607771387771} \]
      3. *-commutative99.6%

        \[\leadsto x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(e^{\mathsf{log1p}\left(\color{blue}{z \cdot \left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right)}\right)} - 1\right) + 0.607771387771} \]
      4. *-commutative99.6%

        \[\leadsto x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(e^{\mathsf{log1p}\left(z \cdot \left(\color{blue}{z \cdot \left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right)} + 11.9400905721\right)\right)} - 1\right) + 0.607771387771} \]
      5. *-commutative99.6%

        \[\leadsto x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(e^{\mathsf{log1p}\left(z \cdot \left(z \cdot \left(\color{blue}{z \cdot \left(z + 15.234687407\right)} + 31.4690115749\right) + 11.9400905721\right)\right)} - 1\right) + 0.607771387771} \]
      6. fma-udef99.6%

        \[\leadsto x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(e^{\mathsf{log1p}\left(z \cdot \left(z \cdot \color{blue}{\mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right)} + 11.9400905721\right)\right)} - 1\right) + 0.607771387771} \]
      7. fma-udef99.6%

        \[\leadsto x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(e^{\mathsf{log1p}\left(z \cdot \color{blue}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right)}\right)} - 1\right) + 0.607771387771} \]
    3. Applied egg-rr99.6%

      \[\leadsto x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\color{blue}{\left(e^{\mathsf{log1p}\left(z \cdot \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right)\right)} - 1\right)} + 0.607771387771} \]
    4. Step-by-step derivation
      1. expm1-def99.6%

        \[\leadsto x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\color{blue}{\mathsf{expm1}\left(\mathsf{log1p}\left(z \cdot \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right)\right)\right)} + 0.607771387771} \]
      2. expm1-log1p99.7%

        \[\leadsto x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\color{blue}{z \cdot \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right)} + 0.607771387771} \]
    5. Simplified99.7%

      \[\leadsto x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\color{blue}{z \cdot \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right)} + 0.607771387771} \]

    if 7.60000000000000009e40 < z

    1. Initial program 6.4%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Step-by-step derivation
      1. associate-/l*8.4%

        \[\leadsto x + \color{blue}{\frac{y}{\frac{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}}} \]
      2. fma-def8.4%

        \[\leadsto x + \frac{y}{\frac{\color{blue}{\mathsf{fma}\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721, z, 0.607771387771\right)}}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      3. fma-def8.4%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749, z, 11.9400905721\right)}, z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      4. fma-def8.4%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right)}, z, 11.9400905721\right), z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      5. fma-def8.4%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\color{blue}{\mathsf{fma}\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a, z, b\right)}}} \]
      6. fma-def8.4%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t, z, a\right)}, z, b\right)}} \]
      7. fma-def8.4%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z \cdot 3.13060547623 + 11.1667541262, z, t\right)}, z, a\right), z, b\right)}} \]
      8. fma-def8.4%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right)}, z, t\right), z, a\right), z, b\right)}} \]
    3. Simplified8.4%

      \[\leadsto \color{blue}{x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), z, t\right), z, a\right), z, b\right)}}} \]
    4. Taylor expanded in z around inf 88.2%

      \[\leadsto x + \frac{y}{\color{blue}{3.7269864963038164 \cdot \frac{1}{z} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)}} \]
    5. Step-by-step derivation
      1. associate-*r/88.2%

        \[\leadsto x + \frac{y}{\color{blue}{\frac{3.7269864963038164 \cdot 1}{z}} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)} \]
      2. metadata-eval88.2%

        \[\leadsto x + \frac{y}{\frac{\color{blue}{3.7269864963038164}}{z} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)} \]
      3. mul-1-neg88.2%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \color{blue}{\left(-\frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)}\right)} \]
      4. *-commutative88.2%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + \color{blue}{t \cdot 0.10203362558171805}}{{z}^{2}}\right)\right)} \]
      5. unpow288.2%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + t \cdot 0.10203362558171805}{\color{blue}{z \cdot z}}\right)\right)} \]
    6. Simplified88.2%

      \[\leadsto x + \frac{y}{\color{blue}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + t \cdot 0.10203362558171805}{z \cdot z}\right)\right)}} \]
    7. Taylor expanded in t around 0 81.6%

      \[\leadsto x + \color{blue}{\left(\frac{y}{\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right)} \]
    8. Step-by-step derivation
      1. associate--l+81.6%

        \[\leadsto x + \left(\frac{y}{\color{blue}{3.7269864963038164 \cdot \frac{1}{z} + \left(0.31942702700572795 - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      2. associate-*r/81.6%

        \[\leadsto x + \left(\frac{y}{\color{blue}{\frac{3.7269864963038164 \cdot 1}{z}} + \left(0.31942702700572795 - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      3. metadata-eval81.6%

        \[\leadsto x + \left(\frac{y}{\frac{\color{blue}{3.7269864963038164}}{z} + \left(0.31942702700572795 - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      4. associate-*r/81.6%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \color{blue}{\frac{3.241970391368047 \cdot 1}{{z}^{2}}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      5. metadata-eval81.6%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{\color{blue}{3.241970391368047}}{{z}^{2}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      6. unpow281.6%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{\color{blue}{z \cdot z}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      7. associate-/r*81.6%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \color{blue}{\frac{\frac{y \cdot t}{{z}^{2}}}{{\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}}\right) \]
      8. associate-/l*100.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \frac{\color{blue}{\frac{y}{\frac{{z}^{2}}{t}}}}{{\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      9. unpow2100.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{\color{blue}{z \cdot z}}{t}}}{{\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
    9. Simplified100.0%

      \[\leadsto x + \color{blue}{\left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{z \cdot z}{t}}}{{\left(\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)\right)}^{2}}\right)} \]
    10. Taylor expanded in z around inf 81.6%

      \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \color{blue}{\left(9.800690647801265 \cdot \frac{y \cdot t}{{z}^{2}}\right)}\right) \]
    11. Step-by-step derivation
      1. associate-/l*100.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \left(9.800690647801265 \cdot \color{blue}{\frac{y}{\frac{{z}^{2}}{t}}}\right)\right) \]
      2. unpow2100.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \left(9.800690647801265 \cdot \frac{y}{\frac{\color{blue}{z \cdot z}}{t}}\right)\right) \]
    12. Simplified100.0%

      \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \color{blue}{\left(9.800690647801265 \cdot \frac{y}{\frac{z \cdot z}{t}}\right)}\right) \]
  3. Recombined 3 regimes into one program.
  4. Final simplification99.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -1.36 \cdot 10^{+28}:\\ \;\;\;\;x + \left(y \cdot 3.13060547623 + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{z \cdot z}{t}}}{{\left(\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)\right)}^{2}}\right)\\ \mathbf{elif}\;z \leq 7.6 \cdot 10^{+40}:\\ \;\;\;\;x + \frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(11.1667541262 + z \cdot 3.13060547623\right)\right)\right)\right)}{0.607771387771 + z \cdot \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right)}\\ \mathbf{else}:\\ \;\;\;\;x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \left(\frac{y}{\frac{z \cdot z}{t}} \cdot 9.800690647801265\right)\right)\\ \end{array} \]

Alternative 4: 98.1% accurate, 0.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{y}{\frac{z \cdot z}{t}}\\ t_2 := \frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)\\ \mathbf{if}\;z \leq -6.3 \cdot 10^{+28}:\\ \;\;\;\;x + \left(y \cdot 3.13060547623 + 0.10203362558171805 \cdot \frac{t_1}{{t_2}^{2}}\right)\\ \mathbf{elif}\;z \leq 7.2 \cdot 10^{+40}:\\ \;\;\;\;x + \frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(11.1667541262 + z \cdot 3.13060547623\right)\right)\right)\right)}{0.607771387771 + z \cdot \left(11.9400905721 + z \cdot \left(31.4690115749 + z \cdot \left(z + 15.234687407\right)\right)\right)}\\ \mathbf{else}:\\ \;\;\;\;x + \left(\frac{y}{t_2} + 0.10203362558171805 \cdot \left(t_1 \cdot 9.800690647801265\right)\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (/ y (/ (* z z) t)))
        (t_2
         (+
          (/ 3.7269864963038164 z)
          (- 0.31942702700572795 (/ 3.241970391368047 (* z z))))))
   (if (<= z -6.3e+28)
     (+
      x
      (+ (* y 3.13060547623) (* 0.10203362558171805 (/ t_1 (pow t_2 2.0)))))
     (if (<= z 7.2e+40)
       (+
        x
        (/
         (*
          y
          (+
           b
           (*
            z
            (+ a (* z (+ t (* z (+ 11.1667541262 (* z 3.13060547623)))))))))
         (+
          0.607771387771
          (*
           z
           (+
            11.9400905721
            (* z (+ 31.4690115749 (* z (+ z 15.234687407)))))))))
       (+
        x
        (+ (/ y t_2) (* 0.10203362558171805 (* t_1 9.800690647801265))))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = y / ((z * z) / t);
	double t_2 = (3.7269864963038164 / z) + (0.31942702700572795 - (3.241970391368047 / (z * z)));
	double tmp;
	if (z <= -6.3e+28) {
		tmp = x + ((y * 3.13060547623) + (0.10203362558171805 * (t_1 / pow(t_2, 2.0))));
	} else if (z <= 7.2e+40) {
		tmp = x + ((y * (b + (z * (a + (z * (t + (z * (11.1667541262 + (z * 3.13060547623))))))))) / (0.607771387771 + (z * (11.9400905721 + (z * (31.4690115749 + (z * (z + 15.234687407))))))));
	} else {
		tmp = x + ((y / t_2) + (0.10203362558171805 * (t_1 * 9.800690647801265)));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    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) :: t_1
    real(8) :: t_2
    real(8) :: tmp
    t_1 = y / ((z * z) / t)
    t_2 = (3.7269864963038164d0 / z) + (0.31942702700572795d0 - (3.241970391368047d0 / (z * z)))
    if (z <= (-6.3d+28)) then
        tmp = x + ((y * 3.13060547623d0) + (0.10203362558171805d0 * (t_1 / (t_2 ** 2.0d0))))
    else if (z <= 7.2d+40) then
        tmp = x + ((y * (b + (z * (a + (z * (t + (z * (11.1667541262d0 + (z * 3.13060547623d0))))))))) / (0.607771387771d0 + (z * (11.9400905721d0 + (z * (31.4690115749d0 + (z * (z + 15.234687407d0))))))))
    else
        tmp = x + ((y / t_2) + (0.10203362558171805d0 * (t_1 * 9.800690647801265d0)))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = y / ((z * z) / t);
	double t_2 = (3.7269864963038164 / z) + (0.31942702700572795 - (3.241970391368047 / (z * z)));
	double tmp;
	if (z <= -6.3e+28) {
		tmp = x + ((y * 3.13060547623) + (0.10203362558171805 * (t_1 / Math.pow(t_2, 2.0))));
	} else if (z <= 7.2e+40) {
		tmp = x + ((y * (b + (z * (a + (z * (t + (z * (11.1667541262 + (z * 3.13060547623))))))))) / (0.607771387771 + (z * (11.9400905721 + (z * (31.4690115749 + (z * (z + 15.234687407))))))));
	} else {
		tmp = x + ((y / t_2) + (0.10203362558171805 * (t_1 * 9.800690647801265)));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = y / ((z * z) / t)
	t_2 = (3.7269864963038164 / z) + (0.31942702700572795 - (3.241970391368047 / (z * z)))
	tmp = 0
	if z <= -6.3e+28:
		tmp = x + ((y * 3.13060547623) + (0.10203362558171805 * (t_1 / math.pow(t_2, 2.0))))
	elif z <= 7.2e+40:
		tmp = x + ((y * (b + (z * (a + (z * (t + (z * (11.1667541262 + (z * 3.13060547623))))))))) / (0.607771387771 + (z * (11.9400905721 + (z * (31.4690115749 + (z * (z + 15.234687407))))))))
	else:
		tmp = x + ((y / t_2) + (0.10203362558171805 * (t_1 * 9.800690647801265)))
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(y / Float64(Float64(z * z) / t))
	t_2 = Float64(Float64(3.7269864963038164 / z) + Float64(0.31942702700572795 - Float64(3.241970391368047 / Float64(z * z))))
	tmp = 0.0
	if (z <= -6.3e+28)
		tmp = Float64(x + Float64(Float64(y * 3.13060547623) + Float64(0.10203362558171805 * Float64(t_1 / (t_2 ^ 2.0)))));
	elseif (z <= 7.2e+40)
		tmp = Float64(x + Float64(Float64(y * Float64(b + Float64(z * Float64(a + Float64(z * Float64(t + Float64(z * Float64(11.1667541262 + Float64(z * 3.13060547623))))))))) / Float64(0.607771387771 + Float64(z * Float64(11.9400905721 + Float64(z * Float64(31.4690115749 + Float64(z * Float64(z + 15.234687407)))))))));
	else
		tmp = Float64(x + Float64(Float64(y / t_2) + Float64(0.10203362558171805 * Float64(t_1 * 9.800690647801265))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = y / ((z * z) / t);
	t_2 = (3.7269864963038164 / z) + (0.31942702700572795 - (3.241970391368047 / (z * z)));
	tmp = 0.0;
	if (z <= -6.3e+28)
		tmp = x + ((y * 3.13060547623) + (0.10203362558171805 * (t_1 / (t_2 ^ 2.0))));
	elseif (z <= 7.2e+40)
		tmp = x + ((y * (b + (z * (a + (z * (t + (z * (11.1667541262 + (z * 3.13060547623))))))))) / (0.607771387771 + (z * (11.9400905721 + (z * (31.4690115749 + (z * (z + 15.234687407))))))));
	else
		tmp = x + ((y / t_2) + (0.10203362558171805 * (t_1 * 9.800690647801265)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(y / N[(N[(z * z), $MachinePrecision] / t), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(N[(3.7269864963038164 / z), $MachinePrecision] + N[(0.31942702700572795 - N[(3.241970391368047 / N[(z * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[z, -6.3e+28], N[(x + N[(N[(y * 3.13060547623), $MachinePrecision] + N[(0.10203362558171805 * N[(t$95$1 / N[Power[t$95$2, 2.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, 7.2e+40], N[(x + N[(N[(y * N[(b + N[(z * N[(a + N[(z * N[(t + N[(z * N[(11.1667541262 + N[(z * 3.13060547623), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(0.607771387771 + N[(z * N[(11.9400905721 + N[(z * N[(31.4690115749 + N[(z * N[(z + 15.234687407), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + N[(N[(y / t$95$2), $MachinePrecision] + N[(0.10203362558171805 * N[(t$95$1 * 9.800690647801265), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \frac{y}{\frac{z \cdot z}{t}}\\
t_2 := \frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)\\
\mathbf{if}\;z \leq -6.3 \cdot 10^{+28}:\\
\;\;\;\;x + \left(y \cdot 3.13060547623 + 0.10203362558171805 \cdot \frac{t_1}{{t_2}^{2}}\right)\\

\mathbf{elif}\;z \leq 7.2 \cdot 10^{+40}:\\
\;\;\;\;x + \frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(11.1667541262 + z \cdot 3.13060547623\right)\right)\right)\right)}{0.607771387771 + z \cdot \left(11.9400905721 + z \cdot \left(31.4690115749 + z \cdot \left(z + 15.234687407\right)\right)\right)}\\

\mathbf{else}:\\
\;\;\;\;x + \left(\frac{y}{t_2} + 0.10203362558171805 \cdot \left(t_1 \cdot 9.800690647801265\right)\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if z < -6.3000000000000001e28

    1. Initial program 7.3%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Step-by-step derivation
      1. associate-/l*13.3%

        \[\leadsto x + \color{blue}{\frac{y}{\frac{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}}} \]
      2. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\color{blue}{\mathsf{fma}\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721, z, 0.607771387771\right)}}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      3. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749, z, 11.9400905721\right)}, z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      4. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right)}, z, 11.9400905721\right), z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      5. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\color{blue}{\mathsf{fma}\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a, z, b\right)}}} \]
      6. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t, z, a\right)}, z, b\right)}} \]
      7. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z \cdot 3.13060547623 + 11.1667541262, z, t\right)}, z, a\right), z, b\right)}} \]
      8. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right)}, z, t\right), z, a\right), z, b\right)}} \]
    3. Simplified13.3%

      \[\leadsto \color{blue}{x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), z, t\right), z, a\right), z, b\right)}}} \]
    4. Taylor expanded in z around inf 86.1%

      \[\leadsto x + \frac{y}{\color{blue}{3.7269864963038164 \cdot \frac{1}{z} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)}} \]
    5. Step-by-step derivation
      1. associate-*r/86.1%

        \[\leadsto x + \frac{y}{\color{blue}{\frac{3.7269864963038164 \cdot 1}{z}} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)} \]
      2. metadata-eval86.1%

        \[\leadsto x + \frac{y}{\frac{\color{blue}{3.7269864963038164}}{z} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)} \]
      3. mul-1-neg86.1%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \color{blue}{\left(-\frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)}\right)} \]
      4. *-commutative86.1%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + \color{blue}{t \cdot 0.10203362558171805}}{{z}^{2}}\right)\right)} \]
      5. unpow286.1%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + t \cdot 0.10203362558171805}{\color{blue}{z \cdot z}}\right)\right)} \]
    6. Simplified86.1%

      \[\leadsto x + \frac{y}{\color{blue}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + t \cdot 0.10203362558171805}{z \cdot z}\right)\right)}} \]
    7. Taylor expanded in t around 0 83.0%

      \[\leadsto x + \color{blue}{\left(\frac{y}{\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right)} \]
    8. Step-by-step derivation
      1. associate--l+83.0%

        \[\leadsto x + \left(\frac{y}{\color{blue}{3.7269864963038164 \cdot \frac{1}{z} + \left(0.31942702700572795 - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      2. associate-*r/83.0%

        \[\leadsto x + \left(\frac{y}{\color{blue}{\frac{3.7269864963038164 \cdot 1}{z}} + \left(0.31942702700572795 - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      3. metadata-eval83.0%

        \[\leadsto x + \left(\frac{y}{\frac{\color{blue}{3.7269864963038164}}{z} + \left(0.31942702700572795 - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      4. associate-*r/83.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \color{blue}{\frac{3.241970391368047 \cdot 1}{{z}^{2}}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      5. metadata-eval83.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{\color{blue}{3.241970391368047}}{{z}^{2}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      6. unpow283.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{\color{blue}{z \cdot z}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      7. associate-/r*83.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \color{blue}{\frac{\frac{y \cdot t}{{z}^{2}}}{{\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}}\right) \]
      8. associate-/l*97.1%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \frac{\color{blue}{\frac{y}{\frac{{z}^{2}}{t}}}}{{\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      9. unpow297.1%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{\color{blue}{z \cdot z}}{t}}}{{\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
    9. Simplified97.1%

      \[\leadsto x + \color{blue}{\left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{z \cdot z}{t}}}{{\left(\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)\right)}^{2}}\right)} \]
    10. Taylor expanded in z around inf 97.1%

      \[\leadsto x + \left(\color{blue}{3.13060547623 \cdot y} + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{z \cdot z}{t}}}{{\left(\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)\right)}^{2}}\right) \]
    11. Step-by-step derivation
      1. *-commutative97.1%

        \[\leadsto x + \left(\color{blue}{y \cdot 3.13060547623} + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{z \cdot z}{t}}}{{\left(\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)\right)}^{2}}\right) \]
    12. Simplified97.1%

      \[\leadsto x + \left(\color{blue}{y \cdot 3.13060547623} + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{z \cdot z}{t}}}{{\left(\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)\right)}^{2}}\right) \]

    if -6.3000000000000001e28 < z < 7.19999999999999993e40

    1. Initial program 99.7%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]

    if 7.19999999999999993e40 < z

    1. Initial program 6.4%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Step-by-step derivation
      1. associate-/l*8.4%

        \[\leadsto x + \color{blue}{\frac{y}{\frac{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}}} \]
      2. fma-def8.4%

        \[\leadsto x + \frac{y}{\frac{\color{blue}{\mathsf{fma}\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721, z, 0.607771387771\right)}}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      3. fma-def8.4%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749, z, 11.9400905721\right)}, z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      4. fma-def8.4%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right)}, z, 11.9400905721\right), z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      5. fma-def8.4%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\color{blue}{\mathsf{fma}\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a, z, b\right)}}} \]
      6. fma-def8.4%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t, z, a\right)}, z, b\right)}} \]
      7. fma-def8.4%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z \cdot 3.13060547623 + 11.1667541262, z, t\right)}, z, a\right), z, b\right)}} \]
      8. fma-def8.4%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right)}, z, t\right), z, a\right), z, b\right)}} \]
    3. Simplified8.4%

      \[\leadsto \color{blue}{x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), z, t\right), z, a\right), z, b\right)}}} \]
    4. Taylor expanded in z around inf 88.2%

      \[\leadsto x + \frac{y}{\color{blue}{3.7269864963038164 \cdot \frac{1}{z} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)}} \]
    5. Step-by-step derivation
      1. associate-*r/88.2%

        \[\leadsto x + \frac{y}{\color{blue}{\frac{3.7269864963038164 \cdot 1}{z}} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)} \]
      2. metadata-eval88.2%

        \[\leadsto x + \frac{y}{\frac{\color{blue}{3.7269864963038164}}{z} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)} \]
      3. mul-1-neg88.2%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \color{blue}{\left(-\frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)}\right)} \]
      4. *-commutative88.2%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + \color{blue}{t \cdot 0.10203362558171805}}{{z}^{2}}\right)\right)} \]
      5. unpow288.2%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + t \cdot 0.10203362558171805}{\color{blue}{z \cdot z}}\right)\right)} \]
    6. Simplified88.2%

      \[\leadsto x + \frac{y}{\color{blue}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + t \cdot 0.10203362558171805}{z \cdot z}\right)\right)}} \]
    7. Taylor expanded in t around 0 81.6%

      \[\leadsto x + \color{blue}{\left(\frac{y}{\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right)} \]
    8. Step-by-step derivation
      1. associate--l+81.6%

        \[\leadsto x + \left(\frac{y}{\color{blue}{3.7269864963038164 \cdot \frac{1}{z} + \left(0.31942702700572795 - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      2. associate-*r/81.6%

        \[\leadsto x + \left(\frac{y}{\color{blue}{\frac{3.7269864963038164 \cdot 1}{z}} + \left(0.31942702700572795 - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      3. metadata-eval81.6%

        \[\leadsto x + \left(\frac{y}{\frac{\color{blue}{3.7269864963038164}}{z} + \left(0.31942702700572795 - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      4. associate-*r/81.6%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \color{blue}{\frac{3.241970391368047 \cdot 1}{{z}^{2}}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      5. metadata-eval81.6%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{\color{blue}{3.241970391368047}}{{z}^{2}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      6. unpow281.6%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{\color{blue}{z \cdot z}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      7. associate-/r*81.6%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \color{blue}{\frac{\frac{y \cdot t}{{z}^{2}}}{{\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}}\right) \]
      8. associate-/l*100.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \frac{\color{blue}{\frac{y}{\frac{{z}^{2}}{t}}}}{{\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      9. unpow2100.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{\color{blue}{z \cdot z}}{t}}}{{\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
    9. Simplified100.0%

      \[\leadsto x + \color{blue}{\left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{z \cdot z}{t}}}{{\left(\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)\right)}^{2}}\right)} \]
    10. Taylor expanded in z around inf 81.6%

      \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \color{blue}{\left(9.800690647801265 \cdot \frac{y \cdot t}{{z}^{2}}\right)}\right) \]
    11. Step-by-step derivation
      1. associate-/l*100.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \left(9.800690647801265 \cdot \color{blue}{\frac{y}{\frac{{z}^{2}}{t}}}\right)\right) \]
      2. unpow2100.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \left(9.800690647801265 \cdot \frac{y}{\frac{\color{blue}{z \cdot z}}{t}}\right)\right) \]
    12. Simplified100.0%

      \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \color{blue}{\left(9.800690647801265 \cdot \frac{y}{\frac{z \cdot z}{t}}\right)}\right) \]
  3. Recombined 3 regimes into one program.
  4. Final simplification99.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -6.3 \cdot 10^{+28}:\\ \;\;\;\;x + \left(y \cdot 3.13060547623 + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{z \cdot z}{t}}}{{\left(\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)\right)}^{2}}\right)\\ \mathbf{elif}\;z \leq 7.2 \cdot 10^{+40}:\\ \;\;\;\;x + \frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(11.1667541262 + z \cdot 3.13060547623\right)\right)\right)\right)}{0.607771387771 + z \cdot \left(11.9400905721 + z \cdot \left(31.4690115749 + z \cdot \left(z + 15.234687407\right)\right)\right)}\\ \mathbf{else}:\\ \;\;\;\;x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \left(\frac{y}{\frac{z \cdot z}{t}} \cdot 9.800690647801265\right)\right)\\ \end{array} \]

Alternative 5: 98.1% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -1.42 \cdot 10^{+27} \lor \neg \left(z \leq 7.2 \cdot 10^{+40}\right):\\ \;\;\;\;x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \left(\frac{y}{\frac{z \cdot z}{t}} \cdot 9.800690647801265\right)\right)\\ \mathbf{else}:\\ \;\;\;\;x + \frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(11.1667541262 + z \cdot 3.13060547623\right)\right)\right)\right)}{0.607771387771 + z \cdot \left(11.9400905721 + z \cdot \left(31.4690115749 + z \cdot \left(z + 15.234687407\right)\right)\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= z -1.42e+27) (not (<= z 7.2e+40)))
   (+
    x
    (+
     (/
      y
      (+
       (/ 3.7269864963038164 z)
       (- 0.31942702700572795 (/ 3.241970391368047 (* z z)))))
     (* 0.10203362558171805 (* (/ y (/ (* z z) t)) 9.800690647801265))))
   (+
    x
    (/
     (*
      y
      (+
       b
       (* z (+ a (* z (+ t (* z (+ 11.1667541262 (* z 3.13060547623)))))))))
     (+
      0.607771387771
      (*
       z
       (+ 11.9400905721 (* z (+ 31.4690115749 (* z (+ z 15.234687407)))))))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((z <= -1.42e+27) || !(z <= 7.2e+40)) {
		tmp = x + ((y / ((3.7269864963038164 / z) + (0.31942702700572795 - (3.241970391368047 / (z * z))))) + (0.10203362558171805 * ((y / ((z * z) / t)) * 9.800690647801265)));
	} else {
		tmp = x + ((y * (b + (z * (a + (z * (t + (z * (11.1667541262 + (z * 3.13060547623))))))))) / (0.607771387771 + (z * (11.9400905721 + (z * (31.4690115749 + (z * (z + 15.234687407))))))));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    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) :: tmp
    if ((z <= (-1.42d+27)) .or. (.not. (z <= 7.2d+40))) then
        tmp = x + ((y / ((3.7269864963038164d0 / z) + (0.31942702700572795d0 - (3.241970391368047d0 / (z * z))))) + (0.10203362558171805d0 * ((y / ((z * z) / t)) * 9.800690647801265d0)))
    else
        tmp = x + ((y * (b + (z * (a + (z * (t + (z * (11.1667541262d0 + (z * 3.13060547623d0))))))))) / (0.607771387771d0 + (z * (11.9400905721d0 + (z * (31.4690115749d0 + (z * (z + 15.234687407d0))))))))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((z <= -1.42e+27) || !(z <= 7.2e+40)) {
		tmp = x + ((y / ((3.7269864963038164 / z) + (0.31942702700572795 - (3.241970391368047 / (z * z))))) + (0.10203362558171805 * ((y / ((z * z) / t)) * 9.800690647801265)));
	} else {
		tmp = x + ((y * (b + (z * (a + (z * (t + (z * (11.1667541262 + (z * 3.13060547623))))))))) / (0.607771387771 + (z * (11.9400905721 + (z * (31.4690115749 + (z * (z + 15.234687407))))))));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (z <= -1.42e+27) or not (z <= 7.2e+40):
		tmp = x + ((y / ((3.7269864963038164 / z) + (0.31942702700572795 - (3.241970391368047 / (z * z))))) + (0.10203362558171805 * ((y / ((z * z) / t)) * 9.800690647801265)))
	else:
		tmp = x + ((y * (b + (z * (a + (z * (t + (z * (11.1667541262 + (z * 3.13060547623))))))))) / (0.607771387771 + (z * (11.9400905721 + (z * (31.4690115749 + (z * (z + 15.234687407))))))))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((z <= -1.42e+27) || !(z <= 7.2e+40))
		tmp = Float64(x + Float64(Float64(y / Float64(Float64(3.7269864963038164 / z) + Float64(0.31942702700572795 - Float64(3.241970391368047 / Float64(z * z))))) + Float64(0.10203362558171805 * Float64(Float64(y / Float64(Float64(z * z) / t)) * 9.800690647801265))));
	else
		tmp = Float64(x + Float64(Float64(y * Float64(b + Float64(z * Float64(a + Float64(z * Float64(t + Float64(z * Float64(11.1667541262 + Float64(z * 3.13060547623))))))))) / Float64(0.607771387771 + Float64(z * Float64(11.9400905721 + Float64(z * Float64(31.4690115749 + Float64(z * Float64(z + 15.234687407)))))))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((z <= -1.42e+27) || ~((z <= 7.2e+40)))
		tmp = x + ((y / ((3.7269864963038164 / z) + (0.31942702700572795 - (3.241970391368047 / (z * z))))) + (0.10203362558171805 * ((y / ((z * z) / t)) * 9.800690647801265)));
	else
		tmp = x + ((y * (b + (z * (a + (z * (t + (z * (11.1667541262 + (z * 3.13060547623))))))))) / (0.607771387771 + (z * (11.9400905721 + (z * (31.4690115749 + (z * (z + 15.234687407))))))));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[z, -1.42e+27], N[Not[LessEqual[z, 7.2e+40]], $MachinePrecision]], N[(x + N[(N[(y / N[(N[(3.7269864963038164 / z), $MachinePrecision] + N[(0.31942702700572795 - N[(3.241970391368047 / N[(z * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(0.10203362558171805 * N[(N[(y / N[(N[(z * z), $MachinePrecision] / t), $MachinePrecision]), $MachinePrecision] * 9.800690647801265), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + N[(N[(y * N[(b + N[(z * N[(a + N[(z * N[(t + N[(z * N[(11.1667541262 + N[(z * 3.13060547623), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(0.607771387771 + N[(z * N[(11.9400905721 + N[(z * N[(31.4690115749 + N[(z * N[(z + 15.234687407), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -1.42 \cdot 10^{+27} \lor \neg \left(z \leq 7.2 \cdot 10^{+40}\right):\\
\;\;\;\;x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \left(\frac{y}{\frac{z \cdot z}{t}} \cdot 9.800690647801265\right)\right)\\

\mathbf{else}:\\
\;\;\;\;x + \frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(11.1667541262 + z \cdot 3.13060547623\right)\right)\right)\right)}{0.607771387771 + z \cdot \left(11.9400905721 + z \cdot \left(31.4690115749 + z \cdot \left(z + 15.234687407\right)\right)\right)}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -1.4199999999999999e27 or 7.19999999999999993e40 < z

    1. Initial program 6.9%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Step-by-step derivation
      1. associate-/l*11.1%

        \[\leadsto x + \color{blue}{\frac{y}{\frac{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}}} \]
      2. fma-def11.1%

        \[\leadsto x + \frac{y}{\frac{\color{blue}{\mathsf{fma}\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721, z, 0.607771387771\right)}}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      3. fma-def11.1%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749, z, 11.9400905721\right)}, z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      4. fma-def11.1%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right)}, z, 11.9400905721\right), z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      5. fma-def11.1%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\color{blue}{\mathsf{fma}\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a, z, b\right)}}} \]
      6. fma-def11.1%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t, z, a\right)}, z, b\right)}} \]
      7. fma-def11.1%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z \cdot 3.13060547623 + 11.1667541262, z, t\right)}, z, a\right), z, b\right)}} \]
      8. fma-def11.1%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right)}, z, t\right), z, a\right), z, b\right)}} \]
    3. Simplified11.1%

      \[\leadsto \color{blue}{x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), z, t\right), z, a\right), z, b\right)}}} \]
    4. Taylor expanded in z around inf 87.0%

      \[\leadsto x + \frac{y}{\color{blue}{3.7269864963038164 \cdot \frac{1}{z} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)}} \]
    5. Step-by-step derivation
      1. associate-*r/87.0%

        \[\leadsto x + \frac{y}{\color{blue}{\frac{3.7269864963038164 \cdot 1}{z}} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)} \]
      2. metadata-eval87.0%

        \[\leadsto x + \frac{y}{\frac{\color{blue}{3.7269864963038164}}{z} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)} \]
      3. mul-1-neg87.0%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \color{blue}{\left(-\frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)}\right)} \]
      4. *-commutative87.0%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + \color{blue}{t \cdot 0.10203362558171805}}{{z}^{2}}\right)\right)} \]
      5. unpow287.0%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + t \cdot 0.10203362558171805}{\color{blue}{z \cdot z}}\right)\right)} \]
    6. Simplified87.0%

      \[\leadsto x + \frac{y}{\color{blue}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + t \cdot 0.10203362558171805}{z \cdot z}\right)\right)}} \]
    7. Taylor expanded in t around 0 82.4%

      \[\leadsto x + \color{blue}{\left(\frac{y}{\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right)} \]
    8. Step-by-step derivation
      1. associate--l+82.4%

        \[\leadsto x + \left(\frac{y}{\color{blue}{3.7269864963038164 \cdot \frac{1}{z} + \left(0.31942702700572795 - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      2. associate-*r/82.4%

        \[\leadsto x + \left(\frac{y}{\color{blue}{\frac{3.7269864963038164 \cdot 1}{z}} + \left(0.31942702700572795 - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      3. metadata-eval82.4%

        \[\leadsto x + \left(\frac{y}{\frac{\color{blue}{3.7269864963038164}}{z} + \left(0.31942702700572795 - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      4. associate-*r/82.4%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \color{blue}{\frac{3.241970391368047 \cdot 1}{{z}^{2}}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      5. metadata-eval82.4%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{\color{blue}{3.241970391368047}}{{z}^{2}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      6. unpow282.4%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{\color{blue}{z \cdot z}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      7. associate-/r*82.4%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \color{blue}{\frac{\frac{y \cdot t}{{z}^{2}}}{{\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}}\right) \]
      8. associate-/l*98.4%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \frac{\color{blue}{\frac{y}{\frac{{z}^{2}}{t}}}}{{\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      9. unpow298.4%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{\color{blue}{z \cdot z}}{t}}}{{\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
    9. Simplified98.4%

      \[\leadsto x + \color{blue}{\left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{z \cdot z}{t}}}{{\left(\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)\right)}^{2}}\right)} \]
    10. Taylor expanded in z around inf 82.4%

      \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \color{blue}{\left(9.800690647801265 \cdot \frac{y \cdot t}{{z}^{2}}\right)}\right) \]
    11. Step-by-step derivation
      1. associate-/l*98.4%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \left(9.800690647801265 \cdot \color{blue}{\frac{y}{\frac{{z}^{2}}{t}}}\right)\right) \]
      2. unpow298.4%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \left(9.800690647801265 \cdot \frac{y}{\frac{\color{blue}{z \cdot z}}{t}}\right)\right) \]
    12. Simplified98.4%

      \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \color{blue}{\left(9.800690647801265 \cdot \frac{y}{\frac{z \cdot z}{t}}\right)}\right) \]

    if -1.4199999999999999e27 < z < 7.19999999999999993e40

    1. Initial program 99.7%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification99.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -1.42 \cdot 10^{+27} \lor \neg \left(z \leq 7.2 \cdot 10^{+40}\right):\\ \;\;\;\;x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \left(\frac{y}{\frac{z \cdot z}{t}} \cdot 9.800690647801265\right)\right)\\ \mathbf{else}:\\ \;\;\;\;x + \frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(11.1667541262 + z \cdot 3.13060547623\right)\right)\right)\right)}{0.607771387771 + z \cdot \left(11.9400905721 + z \cdot \left(31.4690115749 + z \cdot \left(z + 15.234687407\right)\right)\right)}\\ \end{array} \]

Alternative 6: 97.5% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -2.75 \cdot 10^{+21} \lor \neg \left(z \leq 2800000000000\right):\\ \;\;\;\;x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \left(\frac{y}{\frac{z \cdot z}{t}} \cdot 9.800690647801265\right)\right)\\ \mathbf{else}:\\ \;\;\;\;x + \frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot 11.1667541262\right)\right)\right)}{0.607771387771 + z \cdot \left(11.9400905721 + z \cdot \left(31.4690115749 + z \cdot \left(z + 15.234687407\right)\right)\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= z -2.75e+21) (not (<= z 2800000000000.0)))
   (+
    x
    (+
     (/
      y
      (+
       (/ 3.7269864963038164 z)
       (- 0.31942702700572795 (/ 3.241970391368047 (* z z)))))
     (* 0.10203362558171805 (* (/ y (/ (* z z) t)) 9.800690647801265))))
   (+
    x
    (/
     (* y (+ b (* z (+ a (* z (+ t (* z 11.1667541262)))))))
     (+
      0.607771387771
      (*
       z
       (+ 11.9400905721 (* z (+ 31.4690115749 (* z (+ z 15.234687407)))))))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((z <= -2.75e+21) || !(z <= 2800000000000.0)) {
		tmp = x + ((y / ((3.7269864963038164 / z) + (0.31942702700572795 - (3.241970391368047 / (z * z))))) + (0.10203362558171805 * ((y / ((z * z) / t)) * 9.800690647801265)));
	} else {
		tmp = x + ((y * (b + (z * (a + (z * (t + (z * 11.1667541262))))))) / (0.607771387771 + (z * (11.9400905721 + (z * (31.4690115749 + (z * (z + 15.234687407))))))));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    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) :: tmp
    if ((z <= (-2.75d+21)) .or. (.not. (z <= 2800000000000.0d0))) then
        tmp = x + ((y / ((3.7269864963038164d0 / z) + (0.31942702700572795d0 - (3.241970391368047d0 / (z * z))))) + (0.10203362558171805d0 * ((y / ((z * z) / t)) * 9.800690647801265d0)))
    else
        tmp = x + ((y * (b + (z * (a + (z * (t + (z * 11.1667541262d0))))))) / (0.607771387771d0 + (z * (11.9400905721d0 + (z * (31.4690115749d0 + (z * (z + 15.234687407d0))))))))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((z <= -2.75e+21) || !(z <= 2800000000000.0)) {
		tmp = x + ((y / ((3.7269864963038164 / z) + (0.31942702700572795 - (3.241970391368047 / (z * z))))) + (0.10203362558171805 * ((y / ((z * z) / t)) * 9.800690647801265)));
	} else {
		tmp = x + ((y * (b + (z * (a + (z * (t + (z * 11.1667541262))))))) / (0.607771387771 + (z * (11.9400905721 + (z * (31.4690115749 + (z * (z + 15.234687407))))))));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (z <= -2.75e+21) or not (z <= 2800000000000.0):
		tmp = x + ((y / ((3.7269864963038164 / z) + (0.31942702700572795 - (3.241970391368047 / (z * z))))) + (0.10203362558171805 * ((y / ((z * z) / t)) * 9.800690647801265)))
	else:
		tmp = x + ((y * (b + (z * (a + (z * (t + (z * 11.1667541262))))))) / (0.607771387771 + (z * (11.9400905721 + (z * (31.4690115749 + (z * (z + 15.234687407))))))))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((z <= -2.75e+21) || !(z <= 2800000000000.0))
		tmp = Float64(x + Float64(Float64(y / Float64(Float64(3.7269864963038164 / z) + Float64(0.31942702700572795 - Float64(3.241970391368047 / Float64(z * z))))) + Float64(0.10203362558171805 * Float64(Float64(y / Float64(Float64(z * z) / t)) * 9.800690647801265))));
	else
		tmp = Float64(x + Float64(Float64(y * Float64(b + Float64(z * Float64(a + Float64(z * Float64(t + Float64(z * 11.1667541262))))))) / Float64(0.607771387771 + Float64(z * Float64(11.9400905721 + Float64(z * Float64(31.4690115749 + Float64(z * Float64(z + 15.234687407)))))))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((z <= -2.75e+21) || ~((z <= 2800000000000.0)))
		tmp = x + ((y / ((3.7269864963038164 / z) + (0.31942702700572795 - (3.241970391368047 / (z * z))))) + (0.10203362558171805 * ((y / ((z * z) / t)) * 9.800690647801265)));
	else
		tmp = x + ((y * (b + (z * (a + (z * (t + (z * 11.1667541262))))))) / (0.607771387771 + (z * (11.9400905721 + (z * (31.4690115749 + (z * (z + 15.234687407))))))));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[z, -2.75e+21], N[Not[LessEqual[z, 2800000000000.0]], $MachinePrecision]], N[(x + N[(N[(y / N[(N[(3.7269864963038164 / z), $MachinePrecision] + N[(0.31942702700572795 - N[(3.241970391368047 / N[(z * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(0.10203362558171805 * N[(N[(y / N[(N[(z * z), $MachinePrecision] / t), $MachinePrecision]), $MachinePrecision] * 9.800690647801265), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + N[(N[(y * N[(b + N[(z * N[(a + N[(z * N[(t + N[(z * 11.1667541262), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(0.607771387771 + N[(z * N[(11.9400905721 + N[(z * N[(31.4690115749 + N[(z * N[(z + 15.234687407), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -2.75 \cdot 10^{+21} \lor \neg \left(z \leq 2800000000000\right):\\
\;\;\;\;x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \left(\frac{y}{\frac{z \cdot z}{t}} \cdot 9.800690647801265\right)\right)\\

\mathbf{else}:\\
\;\;\;\;x + \frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot 11.1667541262\right)\right)\right)}{0.607771387771 + z \cdot \left(11.9400905721 + z \cdot \left(31.4690115749 + z \cdot \left(z + 15.234687407\right)\right)\right)}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -2.75e21 or 2.8e12 < z

    1. Initial program 10.1%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Step-by-step derivation
      1. associate-/l*14.2%

        \[\leadsto x + \color{blue}{\frac{y}{\frac{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}}} \]
      2. fma-def14.2%

        \[\leadsto x + \frac{y}{\frac{\color{blue}{\mathsf{fma}\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721, z, 0.607771387771\right)}}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      3. fma-def14.2%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749, z, 11.9400905721\right)}, z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      4. fma-def14.2%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right)}, z, 11.9400905721\right), z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      5. fma-def14.2%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\color{blue}{\mathsf{fma}\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a, z, b\right)}}} \]
      6. fma-def14.2%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t, z, a\right)}, z, b\right)}} \]
      7. fma-def14.2%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z \cdot 3.13060547623 + 11.1667541262, z, t\right)}, z, a\right), z, b\right)}} \]
      8. fma-def14.2%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right)}, z, t\right), z, a\right), z, b\right)}} \]
    3. Simplified14.2%

      \[\leadsto \color{blue}{x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), z, t\right), z, a\right), z, b\right)}}} \]
    4. Taylor expanded in z around inf 87.2%

      \[\leadsto x + \frac{y}{\color{blue}{3.7269864963038164 \cdot \frac{1}{z} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)}} \]
    5. Step-by-step derivation
      1. associate-*r/87.2%

        \[\leadsto x + \frac{y}{\color{blue}{\frac{3.7269864963038164 \cdot 1}{z}} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)} \]
      2. metadata-eval87.2%

        \[\leadsto x + \frac{y}{\frac{\color{blue}{3.7269864963038164}}{z} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)} \]
      3. mul-1-neg87.2%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \color{blue}{\left(-\frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)}\right)} \]
      4. *-commutative87.2%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + \color{blue}{t \cdot 0.10203362558171805}}{{z}^{2}}\right)\right)} \]
      5. unpow287.2%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + t \cdot 0.10203362558171805}{\color{blue}{z \cdot z}}\right)\right)} \]
    6. Simplified87.2%

      \[\leadsto x + \frac{y}{\color{blue}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + t \cdot 0.10203362558171805}{z \cdot z}\right)\right)}} \]
    7. Taylor expanded in t around 0 82.7%

      \[\leadsto x + \color{blue}{\left(\frac{y}{\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right)} \]
    8. Step-by-step derivation
      1. associate--l+82.7%

        \[\leadsto x + \left(\frac{y}{\color{blue}{3.7269864963038164 \cdot \frac{1}{z} + \left(0.31942702700572795 - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      2. associate-*r/82.7%

        \[\leadsto x + \left(\frac{y}{\color{blue}{\frac{3.7269864963038164 \cdot 1}{z}} + \left(0.31942702700572795 - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      3. metadata-eval82.7%

        \[\leadsto x + \left(\frac{y}{\frac{\color{blue}{3.7269864963038164}}{z} + \left(0.31942702700572795 - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      4. associate-*r/82.7%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \color{blue}{\frac{3.241970391368047 \cdot 1}{{z}^{2}}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      5. metadata-eval82.7%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{\color{blue}{3.241970391368047}}{{z}^{2}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      6. unpow282.7%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{\color{blue}{z \cdot z}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      7. associate-/r*82.7%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \color{blue}{\frac{\frac{y \cdot t}{{z}^{2}}}{{\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}}\right) \]
      8. associate-/l*98.1%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \frac{\color{blue}{\frac{y}{\frac{{z}^{2}}{t}}}}{{\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      9. unpow298.1%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{\color{blue}{z \cdot z}}{t}}}{{\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
    9. Simplified98.1%

      \[\leadsto x + \color{blue}{\left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{z \cdot z}{t}}}{{\left(\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)\right)}^{2}}\right)} \]
    10. Taylor expanded in z around inf 82.7%

      \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \color{blue}{\left(9.800690647801265 \cdot \frac{y \cdot t}{{z}^{2}}\right)}\right) \]
    11. Step-by-step derivation
      1. associate-/l*98.1%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \left(9.800690647801265 \cdot \color{blue}{\frac{y}{\frac{{z}^{2}}{t}}}\right)\right) \]
      2. unpow298.1%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \left(9.800690647801265 \cdot \frac{y}{\frac{\color{blue}{z \cdot z}}{t}}\right)\right) \]
    12. Simplified98.1%

      \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \color{blue}{\left(9.800690647801265 \cdot \frac{y}{\frac{z \cdot z}{t}}\right)}\right) \]

    if -2.75e21 < z < 2.8e12

    1. Initial program 99.7%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Taylor expanded in z around 0 99.7%

      \[\leadsto x + \frac{y \cdot \left(\left(\left(\color{blue}{11.1667541262 \cdot z} + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    3. Step-by-step derivation
      1. *-commutative96.0%

        \[\leadsto x + \frac{y \cdot \left(\left(\left(\color{blue}{z \cdot 11.1667541262} + t\right) \cdot z + a\right) \cdot z + b\right)}{z \cdot 11.9400905721 + 0.607771387771} \]
    4. Simplified99.7%

      \[\leadsto x + \frac{y \cdot \left(\left(\left(\color{blue}{z \cdot 11.1667541262} + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification99.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -2.75 \cdot 10^{+21} \lor \neg \left(z \leq 2800000000000\right):\\ \;\;\;\;x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \left(\frac{y}{\frac{z \cdot z}{t}} \cdot 9.800690647801265\right)\right)\\ \mathbf{else}:\\ \;\;\;\;x + \frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot 11.1667541262\right)\right)\right)}{0.607771387771 + z \cdot \left(11.9400905721 + z \cdot \left(31.4690115749 + z \cdot \left(z + 15.234687407\right)\right)\right)}\\ \end{array} \]

Alternative 7: 96.4% accurate, 1.2× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -0.42 \lor \neg \left(z \leq 8000000000\right):\\ \;\;\;\;x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \left(9.800690647801265 \cdot \left(t \cdot \frac{y}{z \cdot z}\right)\right)\right)\\ \mathbf{else}:\\ \;\;\;\;x + \frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot 11.1667541262\right)\right)\right)}{0.607771387771 + z \cdot 11.9400905721}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= z -0.42) (not (<= z 8000000000.0)))
   (+
    x
    (+
     (/
      y
      (+
       (/ 3.7269864963038164 z)
       (- 0.31942702700572795 (/ 3.241970391368047 (* z z)))))
     (* 0.10203362558171805 (* 9.800690647801265 (* t (/ y (* z z)))))))
   (+
    x
    (/
     (* y (+ b (* z (+ a (* z (+ t (* z 11.1667541262)))))))
     (+ 0.607771387771 (* z 11.9400905721))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((z <= -0.42) || !(z <= 8000000000.0)) {
		tmp = x + ((y / ((3.7269864963038164 / z) + (0.31942702700572795 - (3.241970391368047 / (z * z))))) + (0.10203362558171805 * (9.800690647801265 * (t * (y / (z * z))))));
	} else {
		tmp = x + ((y * (b + (z * (a + (z * (t + (z * 11.1667541262))))))) / (0.607771387771 + (z * 11.9400905721)));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    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) :: tmp
    if ((z <= (-0.42d0)) .or. (.not. (z <= 8000000000.0d0))) then
        tmp = x + ((y / ((3.7269864963038164d0 / z) + (0.31942702700572795d0 - (3.241970391368047d0 / (z * z))))) + (0.10203362558171805d0 * (9.800690647801265d0 * (t * (y / (z * z))))))
    else
        tmp = x + ((y * (b + (z * (a + (z * (t + (z * 11.1667541262d0))))))) / (0.607771387771d0 + (z * 11.9400905721d0)))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((z <= -0.42) || !(z <= 8000000000.0)) {
		tmp = x + ((y / ((3.7269864963038164 / z) + (0.31942702700572795 - (3.241970391368047 / (z * z))))) + (0.10203362558171805 * (9.800690647801265 * (t * (y / (z * z))))));
	} else {
		tmp = x + ((y * (b + (z * (a + (z * (t + (z * 11.1667541262))))))) / (0.607771387771 + (z * 11.9400905721)));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (z <= -0.42) or not (z <= 8000000000.0):
		tmp = x + ((y / ((3.7269864963038164 / z) + (0.31942702700572795 - (3.241970391368047 / (z * z))))) + (0.10203362558171805 * (9.800690647801265 * (t * (y / (z * z))))))
	else:
		tmp = x + ((y * (b + (z * (a + (z * (t + (z * 11.1667541262))))))) / (0.607771387771 + (z * 11.9400905721)))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((z <= -0.42) || !(z <= 8000000000.0))
		tmp = Float64(x + Float64(Float64(y / Float64(Float64(3.7269864963038164 / z) + Float64(0.31942702700572795 - Float64(3.241970391368047 / Float64(z * z))))) + Float64(0.10203362558171805 * Float64(9.800690647801265 * Float64(t * Float64(y / Float64(z * z)))))));
	else
		tmp = Float64(x + Float64(Float64(y * Float64(b + Float64(z * Float64(a + Float64(z * Float64(t + Float64(z * 11.1667541262))))))) / Float64(0.607771387771 + Float64(z * 11.9400905721))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((z <= -0.42) || ~((z <= 8000000000.0)))
		tmp = x + ((y / ((3.7269864963038164 / z) + (0.31942702700572795 - (3.241970391368047 / (z * z))))) + (0.10203362558171805 * (9.800690647801265 * (t * (y / (z * z))))));
	else
		tmp = x + ((y * (b + (z * (a + (z * (t + (z * 11.1667541262))))))) / (0.607771387771 + (z * 11.9400905721)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[z, -0.42], N[Not[LessEqual[z, 8000000000.0]], $MachinePrecision]], N[(x + N[(N[(y / N[(N[(3.7269864963038164 / z), $MachinePrecision] + N[(0.31942702700572795 - N[(3.241970391368047 / N[(z * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(0.10203362558171805 * N[(9.800690647801265 * N[(t * N[(y / N[(z * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + N[(N[(y * N[(b + N[(z * N[(a + N[(z * N[(t + N[(z * 11.1667541262), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(0.607771387771 + N[(z * 11.9400905721), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -0.42 \lor \neg \left(z \leq 8000000000\right):\\
\;\;\;\;x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \left(9.800690647801265 \cdot \left(t \cdot \frac{y}{z \cdot z}\right)\right)\right)\\

\mathbf{else}:\\
\;\;\;\;x + \frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot 11.1667541262\right)\right)\right)}{0.607771387771 + z \cdot 11.9400905721}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -0.419999999999999984 or 8e9 < z

    1. Initial program 13.8%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Step-by-step derivation
      1. associate-/l*17.8%

        \[\leadsto x + \color{blue}{\frac{y}{\frac{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}}} \]
      2. fma-def17.8%

        \[\leadsto x + \frac{y}{\frac{\color{blue}{\mathsf{fma}\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721, z, 0.607771387771\right)}}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      3. fma-def17.8%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749, z, 11.9400905721\right)}, z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      4. fma-def17.8%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right)}, z, 11.9400905721\right), z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      5. fma-def17.8%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\color{blue}{\mathsf{fma}\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a, z, b\right)}}} \]
      6. fma-def17.8%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t, z, a\right)}, z, b\right)}} \]
      7. fma-def17.8%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z \cdot 3.13060547623 + 11.1667541262, z, t\right)}, z, a\right), z, b\right)}} \]
      8. fma-def17.8%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right)}, z, t\right), z, a\right), z, b\right)}} \]
    3. Simplified17.8%

      \[\leadsto \color{blue}{x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), z, t\right), z, a\right), z, b\right)}}} \]
    4. Taylor expanded in z around inf 85.3%

      \[\leadsto x + \frac{y}{\color{blue}{3.7269864963038164 \cdot \frac{1}{z} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)}} \]
    5. Step-by-step derivation
      1. associate-*r/85.3%

        \[\leadsto x + \frac{y}{\color{blue}{\frac{3.7269864963038164 \cdot 1}{z}} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)} \]
      2. metadata-eval85.3%

        \[\leadsto x + \frac{y}{\frac{\color{blue}{3.7269864963038164}}{z} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)} \]
      3. mul-1-neg85.3%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \color{blue}{\left(-\frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)}\right)} \]
      4. *-commutative85.3%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + \color{blue}{t \cdot 0.10203362558171805}}{{z}^{2}}\right)\right)} \]
      5. unpow285.3%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + t \cdot 0.10203362558171805}{\color{blue}{z \cdot z}}\right)\right)} \]
    6. Simplified85.3%

      \[\leadsto x + \frac{y}{\color{blue}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + t \cdot 0.10203362558171805}{z \cdot z}\right)\right)}} \]
    7. Taylor expanded in t around 0 82.2%

      \[\leadsto x + \color{blue}{\left(\frac{y}{\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right)} \]
    8. Step-by-step derivation
      1. associate--l+82.2%

        \[\leadsto x + \left(\frac{y}{\color{blue}{3.7269864963038164 \cdot \frac{1}{z} + \left(0.31942702700572795 - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      2. associate-*r/82.2%

        \[\leadsto x + \left(\frac{y}{\color{blue}{\frac{3.7269864963038164 \cdot 1}{z}} + \left(0.31942702700572795 - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      3. metadata-eval82.2%

        \[\leadsto x + \left(\frac{y}{\frac{\color{blue}{3.7269864963038164}}{z} + \left(0.31942702700572795 - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      4. associate-*r/82.2%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \color{blue}{\frac{3.241970391368047 \cdot 1}{{z}^{2}}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      5. metadata-eval82.2%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{\color{blue}{3.241970391368047}}{{z}^{2}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      6. unpow282.2%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{\color{blue}{z \cdot z}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      7. associate-/r*82.2%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \color{blue}{\frac{\frac{y \cdot t}{{z}^{2}}}{{\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}}\right) \]
      8. associate-/l*97.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \frac{\color{blue}{\frac{y}{\frac{{z}^{2}}{t}}}}{{\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      9. unpow297.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{\color{blue}{z \cdot z}}{t}}}{{\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
    9. Simplified97.0%

      \[\leadsto x + \color{blue}{\left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{z \cdot z}{t}}}{{\left(\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)\right)}^{2}}\right)} \]
    10. Taylor expanded in z around inf 82.2%

      \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \color{blue}{\left(9.800690647801265 \cdot \frac{y \cdot t}{{z}^{2}}\right)}\right) \]
    11. Step-by-step derivation
      1. associate-*l/95.3%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \left(9.800690647801265 \cdot \color{blue}{\left(\frac{y}{{z}^{2}} \cdot t\right)}\right)\right) \]
      2. unpow295.3%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \left(9.800690647801265 \cdot \left(\frac{y}{\color{blue}{z \cdot z}} \cdot t\right)\right)\right) \]
      3. *-commutative95.3%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \left(9.800690647801265 \cdot \color{blue}{\left(t \cdot \frac{y}{z \cdot z}\right)}\right)\right) \]
    12. Simplified95.3%

      \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \color{blue}{\left(9.800690647801265 \cdot \left(t \cdot \frac{y}{z \cdot z}\right)\right)}\right) \]

    if -0.419999999999999984 < z < 8e9

    1. Initial program 99.7%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Taylor expanded in z around 0 98.0%

      \[\leadsto x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\color{blue}{11.9400905721 \cdot z} + 0.607771387771} \]
    3. Step-by-step derivation
      1. *-commutative98.0%

        \[\leadsto x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\color{blue}{z \cdot 11.9400905721} + 0.607771387771} \]
    4. Simplified98.0%

      \[\leadsto x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\color{blue}{z \cdot 11.9400905721} + 0.607771387771} \]
    5. Taylor expanded in z around 0 98.0%

      \[\leadsto x + \frac{y \cdot \left(\left(\left(\color{blue}{11.1667541262 \cdot z} + t\right) \cdot z + a\right) \cdot z + b\right)}{z \cdot 11.9400905721 + 0.607771387771} \]
    6. Step-by-step derivation
      1. *-commutative98.0%

        \[\leadsto x + \frac{y \cdot \left(\left(\left(\color{blue}{z \cdot 11.1667541262} + t\right) \cdot z + a\right) \cdot z + b\right)}{z \cdot 11.9400905721 + 0.607771387771} \]
    7. Simplified98.0%

      \[\leadsto x + \frac{y \cdot \left(\left(\left(\color{blue}{z \cdot 11.1667541262} + t\right) \cdot z + a\right) \cdot z + b\right)}{z \cdot 11.9400905721 + 0.607771387771} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification96.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -0.42 \lor \neg \left(z \leq 8000000000\right):\\ \;\;\;\;x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \left(9.800690647801265 \cdot \left(t \cdot \frac{y}{z \cdot z}\right)\right)\right)\\ \mathbf{else}:\\ \;\;\;\;x + \frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot 11.1667541262\right)\right)\right)}{0.607771387771 + z \cdot 11.9400905721}\\ \end{array} \]

Alternative 8: 96.5% accurate, 1.2× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -0.42 \lor \neg \left(z \leq 620000000\right):\\ \;\;\;\;x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \left(\frac{y}{\frac{z \cdot z}{t}} \cdot 9.800690647801265\right)\right)\\ \mathbf{else}:\\ \;\;\;\;x + \frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot 11.1667541262\right)\right)\right)}{0.607771387771 + z \cdot 11.9400905721}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= z -0.42) (not (<= z 620000000.0)))
   (+
    x
    (+
     (/
      y
      (+
       (/ 3.7269864963038164 z)
       (- 0.31942702700572795 (/ 3.241970391368047 (* z z)))))
     (* 0.10203362558171805 (* (/ y (/ (* z z) t)) 9.800690647801265))))
   (+
    x
    (/
     (* y (+ b (* z (+ a (* z (+ t (* z 11.1667541262)))))))
     (+ 0.607771387771 (* z 11.9400905721))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((z <= -0.42) || !(z <= 620000000.0)) {
		tmp = x + ((y / ((3.7269864963038164 / z) + (0.31942702700572795 - (3.241970391368047 / (z * z))))) + (0.10203362558171805 * ((y / ((z * z) / t)) * 9.800690647801265)));
	} else {
		tmp = x + ((y * (b + (z * (a + (z * (t + (z * 11.1667541262))))))) / (0.607771387771 + (z * 11.9400905721)));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    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) :: tmp
    if ((z <= (-0.42d0)) .or. (.not. (z <= 620000000.0d0))) then
        tmp = x + ((y / ((3.7269864963038164d0 / z) + (0.31942702700572795d0 - (3.241970391368047d0 / (z * z))))) + (0.10203362558171805d0 * ((y / ((z * z) / t)) * 9.800690647801265d0)))
    else
        tmp = x + ((y * (b + (z * (a + (z * (t + (z * 11.1667541262d0))))))) / (0.607771387771d0 + (z * 11.9400905721d0)))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((z <= -0.42) || !(z <= 620000000.0)) {
		tmp = x + ((y / ((3.7269864963038164 / z) + (0.31942702700572795 - (3.241970391368047 / (z * z))))) + (0.10203362558171805 * ((y / ((z * z) / t)) * 9.800690647801265)));
	} else {
		tmp = x + ((y * (b + (z * (a + (z * (t + (z * 11.1667541262))))))) / (0.607771387771 + (z * 11.9400905721)));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (z <= -0.42) or not (z <= 620000000.0):
		tmp = x + ((y / ((3.7269864963038164 / z) + (0.31942702700572795 - (3.241970391368047 / (z * z))))) + (0.10203362558171805 * ((y / ((z * z) / t)) * 9.800690647801265)))
	else:
		tmp = x + ((y * (b + (z * (a + (z * (t + (z * 11.1667541262))))))) / (0.607771387771 + (z * 11.9400905721)))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((z <= -0.42) || !(z <= 620000000.0))
		tmp = Float64(x + Float64(Float64(y / Float64(Float64(3.7269864963038164 / z) + Float64(0.31942702700572795 - Float64(3.241970391368047 / Float64(z * z))))) + Float64(0.10203362558171805 * Float64(Float64(y / Float64(Float64(z * z) / t)) * 9.800690647801265))));
	else
		tmp = Float64(x + Float64(Float64(y * Float64(b + Float64(z * Float64(a + Float64(z * Float64(t + Float64(z * 11.1667541262))))))) / Float64(0.607771387771 + Float64(z * 11.9400905721))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((z <= -0.42) || ~((z <= 620000000.0)))
		tmp = x + ((y / ((3.7269864963038164 / z) + (0.31942702700572795 - (3.241970391368047 / (z * z))))) + (0.10203362558171805 * ((y / ((z * z) / t)) * 9.800690647801265)));
	else
		tmp = x + ((y * (b + (z * (a + (z * (t + (z * 11.1667541262))))))) / (0.607771387771 + (z * 11.9400905721)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[z, -0.42], N[Not[LessEqual[z, 620000000.0]], $MachinePrecision]], N[(x + N[(N[(y / N[(N[(3.7269864963038164 / z), $MachinePrecision] + N[(0.31942702700572795 - N[(3.241970391368047 / N[(z * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(0.10203362558171805 * N[(N[(y / N[(N[(z * z), $MachinePrecision] / t), $MachinePrecision]), $MachinePrecision] * 9.800690647801265), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + N[(N[(y * N[(b + N[(z * N[(a + N[(z * N[(t + N[(z * 11.1667541262), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(0.607771387771 + N[(z * 11.9400905721), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -0.42 \lor \neg \left(z \leq 620000000\right):\\
\;\;\;\;x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \left(\frac{y}{\frac{z \cdot z}{t}} \cdot 9.800690647801265\right)\right)\\

\mathbf{else}:\\
\;\;\;\;x + \frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot 11.1667541262\right)\right)\right)}{0.607771387771 + z \cdot 11.9400905721}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -0.419999999999999984 or 6.2e8 < z

    1. Initial program 13.8%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Step-by-step derivation
      1. associate-/l*17.8%

        \[\leadsto x + \color{blue}{\frac{y}{\frac{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}}} \]
      2. fma-def17.8%

        \[\leadsto x + \frac{y}{\frac{\color{blue}{\mathsf{fma}\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721, z, 0.607771387771\right)}}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      3. fma-def17.8%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749, z, 11.9400905721\right)}, z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      4. fma-def17.8%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right)}, z, 11.9400905721\right), z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      5. fma-def17.8%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\color{blue}{\mathsf{fma}\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a, z, b\right)}}} \]
      6. fma-def17.8%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t, z, a\right)}, z, b\right)}} \]
      7. fma-def17.8%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z \cdot 3.13060547623 + 11.1667541262, z, t\right)}, z, a\right), z, b\right)}} \]
      8. fma-def17.8%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right)}, z, t\right), z, a\right), z, b\right)}} \]
    3. Simplified17.8%

      \[\leadsto \color{blue}{x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), z, t\right), z, a\right), z, b\right)}}} \]
    4. Taylor expanded in z around inf 85.3%

      \[\leadsto x + \frac{y}{\color{blue}{3.7269864963038164 \cdot \frac{1}{z} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)}} \]
    5. Step-by-step derivation
      1. associate-*r/85.3%

        \[\leadsto x + \frac{y}{\color{blue}{\frac{3.7269864963038164 \cdot 1}{z}} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)} \]
      2. metadata-eval85.3%

        \[\leadsto x + \frac{y}{\frac{\color{blue}{3.7269864963038164}}{z} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)} \]
      3. mul-1-neg85.3%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \color{blue}{\left(-\frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)}\right)} \]
      4. *-commutative85.3%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + \color{blue}{t \cdot 0.10203362558171805}}{{z}^{2}}\right)\right)} \]
      5. unpow285.3%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + t \cdot 0.10203362558171805}{\color{blue}{z \cdot z}}\right)\right)} \]
    6. Simplified85.3%

      \[\leadsto x + \frac{y}{\color{blue}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + t \cdot 0.10203362558171805}{z \cdot z}\right)\right)}} \]
    7. Taylor expanded in t around 0 82.2%

      \[\leadsto x + \color{blue}{\left(\frac{y}{\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right)} \]
    8. Step-by-step derivation
      1. associate--l+82.2%

        \[\leadsto x + \left(\frac{y}{\color{blue}{3.7269864963038164 \cdot \frac{1}{z} + \left(0.31942702700572795 - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      2. associate-*r/82.2%

        \[\leadsto x + \left(\frac{y}{\color{blue}{\frac{3.7269864963038164 \cdot 1}{z}} + \left(0.31942702700572795 - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      3. metadata-eval82.2%

        \[\leadsto x + \left(\frac{y}{\frac{\color{blue}{3.7269864963038164}}{z} + \left(0.31942702700572795 - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      4. associate-*r/82.2%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \color{blue}{\frac{3.241970391368047 \cdot 1}{{z}^{2}}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      5. metadata-eval82.2%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{\color{blue}{3.241970391368047}}{{z}^{2}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      6. unpow282.2%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{\color{blue}{z \cdot z}}\right)} + 0.10203362558171805 \cdot \frac{y \cdot t}{{z}^{2} \cdot {\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      7. associate-/r*82.2%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \color{blue}{\frac{\frac{y \cdot t}{{z}^{2}}}{{\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}}\right) \]
      8. associate-/l*97.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \frac{\color{blue}{\frac{y}{\frac{{z}^{2}}{t}}}}{{\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
      9. unpow297.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{\color{blue}{z \cdot z}}{t}}}{{\left(\left(3.7269864963038164 \cdot \frac{1}{z} + 0.31942702700572795\right) - 3.241970391368047 \cdot \frac{1}{{z}^{2}}\right)}^{2}}\right) \]
    9. Simplified97.0%

      \[\leadsto x + \color{blue}{\left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \frac{\frac{y}{\frac{z \cdot z}{t}}}{{\left(\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)\right)}^{2}}\right)} \]
    10. Taylor expanded in z around inf 82.2%

      \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \color{blue}{\left(9.800690647801265 \cdot \frac{y \cdot t}{{z}^{2}}\right)}\right) \]
    11. Step-by-step derivation
      1. associate-/l*97.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \left(9.800690647801265 \cdot \color{blue}{\frac{y}{\frac{{z}^{2}}{t}}}\right)\right) \]
      2. unpow297.0%

        \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \left(9.800690647801265 \cdot \frac{y}{\frac{\color{blue}{z \cdot z}}{t}}\right)\right) \]
    12. Simplified97.0%

      \[\leadsto x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \color{blue}{\left(9.800690647801265 \cdot \frac{y}{\frac{z \cdot z}{t}}\right)}\right) \]

    if -0.419999999999999984 < z < 6.2e8

    1. Initial program 99.7%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Taylor expanded in z around 0 98.0%

      \[\leadsto x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\color{blue}{11.9400905721 \cdot z} + 0.607771387771} \]
    3. Step-by-step derivation
      1. *-commutative98.0%

        \[\leadsto x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\color{blue}{z \cdot 11.9400905721} + 0.607771387771} \]
    4. Simplified98.0%

      \[\leadsto x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\color{blue}{z \cdot 11.9400905721} + 0.607771387771} \]
    5. Taylor expanded in z around 0 98.0%

      \[\leadsto x + \frac{y \cdot \left(\left(\left(\color{blue}{11.1667541262 \cdot z} + t\right) \cdot z + a\right) \cdot z + b\right)}{z \cdot 11.9400905721 + 0.607771387771} \]
    6. Step-by-step derivation
      1. *-commutative98.0%

        \[\leadsto x + \frac{y \cdot \left(\left(\left(\color{blue}{z \cdot 11.1667541262} + t\right) \cdot z + a\right) \cdot z + b\right)}{z \cdot 11.9400905721 + 0.607771387771} \]
    7. Simplified98.0%

      \[\leadsto x + \frac{y \cdot \left(\left(\left(\color{blue}{z \cdot 11.1667541262} + t\right) \cdot z + a\right) \cdot z + b\right)}{z \cdot 11.9400905721 + 0.607771387771} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification97.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -0.42 \lor \neg \left(z \leq 620000000\right):\\ \;\;\;\;x + \left(\frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 - \frac{3.241970391368047}{z \cdot z}\right)} + 0.10203362558171805 \cdot \left(\frac{y}{\frac{z \cdot z}{t}} \cdot 9.800690647801265\right)\right)\\ \mathbf{else}:\\ \;\;\;\;x + \frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot 11.1667541262\right)\right)\right)}{0.607771387771 + z \cdot 11.9400905721}\\ \end{array} \]

Alternative 9: 93.0% accurate, 1.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -3.95 \cdot 10^{+31}:\\ \;\;\;\;x + \frac{y}{0.31942702700572795}\\ \mathbf{elif}\;z \leq 6.5 \cdot 10^{+14}:\\ \;\;\;\;x + \frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot 11.1667541262\right)\right)\right)}{0.607771387771}\\ \mathbf{else}:\\ \;\;\;\;x + \left(y \cdot 3.13060547623 - \frac{y \cdot 36.52704169880642}{z}\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= z -3.95e+31)
   (+ x (/ y 0.31942702700572795))
   (if (<= z 6.5e+14)
     (+
      x
      (/
       (* y (+ b (* z (+ a (* z (+ t (* z 11.1667541262)))))))
       0.607771387771))
     (+ x (- (* y 3.13060547623) (/ (* y 36.52704169880642) z))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (z <= -3.95e+31) {
		tmp = x + (y / 0.31942702700572795);
	} else if (z <= 6.5e+14) {
		tmp = x + ((y * (b + (z * (a + (z * (t + (z * 11.1667541262))))))) / 0.607771387771);
	} else {
		tmp = x + ((y * 3.13060547623) - ((y * 36.52704169880642) / z));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    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) :: tmp
    if (z <= (-3.95d+31)) then
        tmp = x + (y / 0.31942702700572795d0)
    else if (z <= 6.5d+14) then
        tmp = x + ((y * (b + (z * (a + (z * (t + (z * 11.1667541262d0))))))) / 0.607771387771d0)
    else
        tmp = x + ((y * 3.13060547623d0) - ((y * 36.52704169880642d0) / z))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (z <= -3.95e+31) {
		tmp = x + (y / 0.31942702700572795);
	} else if (z <= 6.5e+14) {
		tmp = x + ((y * (b + (z * (a + (z * (t + (z * 11.1667541262))))))) / 0.607771387771);
	} else {
		tmp = x + ((y * 3.13060547623) - ((y * 36.52704169880642) / z));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if z <= -3.95e+31:
		tmp = x + (y / 0.31942702700572795)
	elif z <= 6.5e+14:
		tmp = x + ((y * (b + (z * (a + (z * (t + (z * 11.1667541262))))))) / 0.607771387771)
	else:
		tmp = x + ((y * 3.13060547623) - ((y * 36.52704169880642) / z))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (z <= -3.95e+31)
		tmp = Float64(x + Float64(y / 0.31942702700572795));
	elseif (z <= 6.5e+14)
		tmp = Float64(x + Float64(Float64(y * Float64(b + Float64(z * Float64(a + Float64(z * Float64(t + Float64(z * 11.1667541262))))))) / 0.607771387771));
	else
		tmp = Float64(x + Float64(Float64(y * 3.13060547623) - Float64(Float64(y * 36.52704169880642) / z)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (z <= -3.95e+31)
		tmp = x + (y / 0.31942702700572795);
	elseif (z <= 6.5e+14)
		tmp = x + ((y * (b + (z * (a + (z * (t + (z * 11.1667541262))))))) / 0.607771387771);
	else
		tmp = x + ((y * 3.13060547623) - ((y * 36.52704169880642) / z));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[z, -3.95e+31], N[(x + N[(y / 0.31942702700572795), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, 6.5e+14], N[(x + N[(N[(y * N[(b + N[(z * N[(a + N[(z * N[(t + N[(z * 11.1667541262), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / 0.607771387771), $MachinePrecision]), $MachinePrecision], N[(x + N[(N[(y * 3.13060547623), $MachinePrecision] - N[(N[(y * 36.52704169880642), $MachinePrecision] / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -3.95 \cdot 10^{+31}:\\
\;\;\;\;x + \frac{y}{0.31942702700572795}\\

\mathbf{elif}\;z \leq 6.5 \cdot 10^{+14}:\\
\;\;\;\;x + \frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot 11.1667541262\right)\right)\right)}{0.607771387771}\\

\mathbf{else}:\\
\;\;\;\;x + \left(y \cdot 3.13060547623 - \frac{y \cdot 36.52704169880642}{z}\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if z < -3.95000000000000015e31

    1. Initial program 7.3%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Step-by-step derivation
      1. associate-/l*13.4%

        \[\leadsto x + \color{blue}{\frac{y}{\frac{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}}} \]
      2. fma-def13.4%

        \[\leadsto x + \frac{y}{\frac{\color{blue}{\mathsf{fma}\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721, z, 0.607771387771\right)}}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      3. fma-def13.4%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749, z, 11.9400905721\right)}, z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      4. fma-def13.4%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right)}, z, 11.9400905721\right), z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      5. fma-def13.4%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\color{blue}{\mathsf{fma}\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a, z, b\right)}}} \]
      6. fma-def13.4%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t, z, a\right)}, z, b\right)}} \]
      7. fma-def13.4%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z \cdot 3.13060547623 + 11.1667541262, z, t\right)}, z, a\right), z, b\right)}} \]
      8. fma-def13.4%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right)}, z, t\right), z, a\right), z, b\right)}} \]
    3. Simplified13.4%

      \[\leadsto \color{blue}{x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), z, t\right), z, a\right), z, b\right)}}} \]
    4. Taylor expanded in z around inf 87.7%

      \[\leadsto x + \frac{y}{\color{blue}{0.31942702700572795}} \]

    if -3.95000000000000015e31 < z < 6.5e14

    1. Initial program 99.1%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Taylor expanded in z around 0 95.3%

      \[\leadsto x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\color{blue}{11.9400905721 \cdot z} + 0.607771387771} \]
    3. Step-by-step derivation
      1. *-commutative95.3%

        \[\leadsto x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\color{blue}{z \cdot 11.9400905721} + 0.607771387771} \]
    4. Simplified95.3%

      \[\leadsto x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\color{blue}{z \cdot 11.9400905721} + 0.607771387771} \]
    5. Taylor expanded in z around 0 95.3%

      \[\leadsto x + \frac{y \cdot \left(\left(\left(\color{blue}{11.1667541262 \cdot z} + t\right) \cdot z + a\right) \cdot z + b\right)}{z \cdot 11.9400905721 + 0.607771387771} \]
    6. Step-by-step derivation
      1. *-commutative95.3%

        \[\leadsto x + \frac{y \cdot \left(\left(\left(\color{blue}{z \cdot 11.1667541262} + t\right) \cdot z + a\right) \cdot z + b\right)}{z \cdot 11.9400905721 + 0.607771387771} \]
    7. Simplified95.3%

      \[\leadsto x + \frac{y \cdot \left(\left(\left(\color{blue}{z \cdot 11.1667541262} + t\right) \cdot z + a\right) \cdot z + b\right)}{z \cdot 11.9400905721 + 0.607771387771} \]
    8. Taylor expanded in z around 0 95.9%

      \[\leadsto x + \frac{y \cdot \left(\left(\left(z \cdot 11.1667541262 + t\right) \cdot z + a\right) \cdot z + b\right)}{\color{blue}{0.607771387771}} \]

    if 6.5e14 < z

    1. Initial program 13.4%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Step-by-step derivation
      1. associate-*l/15.2%

        \[\leadsto x + \color{blue}{\frac{y}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)} \]
      2. *-commutative15.2%

        \[\leadsto x + \frac{y}{\color{blue}{z \cdot \left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right)} + 0.607771387771} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      3. fma-def15.2%

        \[\leadsto x + \frac{y}{\color{blue}{\mathsf{fma}\left(z, \left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721, 0.607771387771\right)}} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      4. *-commutative15.2%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \color{blue}{z \cdot \left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right)} + 11.9400905721, 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      5. fma-def15.2%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \color{blue}{\mathsf{fma}\left(z, \left(z + 15.234687407\right) \cdot z + 31.4690115749, 11.9400905721\right)}, 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      6. *-commutative15.2%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \color{blue}{z \cdot \left(z + 15.234687407\right)} + 31.4690115749, 11.9400905721\right), 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      7. fma-def15.2%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \color{blue}{\mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right)}, 11.9400905721\right), 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      8. *-commutative15.2%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)} \cdot \left(\color{blue}{z \cdot \left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right)} + b\right) \]
      9. fma-def15.2%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)} \cdot \color{blue}{\mathsf{fma}\left(z, \left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a, b\right)} \]
    3. Simplified15.2%

      \[\leadsto \color{blue}{x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)} \cdot \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right)} \]
    4. Taylor expanded in z around -inf 90.4%

      \[\leadsto x + \color{blue}{\left(-1 \cdot \frac{-11.1667541262 \cdot y - -47.69379582500642 \cdot y}{z} + 3.13060547623 \cdot y\right)} \]
    5. Step-by-step derivation
      1. +-commutative90.4%

        \[\leadsto x + \color{blue}{\left(3.13060547623 \cdot y + -1 \cdot \frac{-11.1667541262 \cdot y - -47.69379582500642 \cdot y}{z}\right)} \]
      2. mul-1-neg90.4%

        \[\leadsto x + \left(3.13060547623 \cdot y + \color{blue}{\left(-\frac{-11.1667541262 \cdot y - -47.69379582500642 \cdot y}{z}\right)}\right) \]
      3. unsub-neg90.4%

        \[\leadsto x + \color{blue}{\left(3.13060547623 \cdot y - \frac{-11.1667541262 \cdot y - -47.69379582500642 \cdot y}{z}\right)} \]
      4. *-commutative90.4%

        \[\leadsto x + \left(\color{blue}{y \cdot 3.13060547623} - \frac{-11.1667541262 \cdot y - -47.69379582500642 \cdot y}{z}\right) \]
      5. distribute-rgt-out--90.4%

        \[\leadsto x + \left(y \cdot 3.13060547623 - \frac{\color{blue}{y \cdot \left(-11.1667541262 - -47.69379582500642\right)}}{z}\right) \]
      6. metadata-eval90.4%

        \[\leadsto x + \left(y \cdot 3.13060547623 - \frac{y \cdot \color{blue}{36.52704169880642}}{z}\right) \]
    6. Simplified90.4%

      \[\leadsto x + \color{blue}{\left(y \cdot 3.13060547623 - \frac{y \cdot 36.52704169880642}{z}\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification92.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -3.95 \cdot 10^{+31}:\\ \;\;\;\;x + \frac{y}{0.31942702700572795}\\ \mathbf{elif}\;z \leq 6.5 \cdot 10^{+14}:\\ \;\;\;\;x + \frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot 11.1667541262\right)\right)\right)}{0.607771387771}\\ \mathbf{else}:\\ \;\;\;\;x + \left(y \cdot 3.13060547623 - \frac{y \cdot 36.52704169880642}{z}\right)\\ \end{array} \]

Alternative 10: 90.2% accurate, 1.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -1.55 \cdot 10^{+25}:\\ \;\;\;\;x + \frac{y}{0.31942702700572795}\\ \mathbf{elif}\;z \leq 1800:\\ \;\;\;\;x + y \cdot \left(z \cdot \left(a \cdot 1.6453555072203998 - b \cdot 32.324150453290734\right) + b \cdot 1.6453555072203998\right)\\ \mathbf{else}:\\ \;\;\;\;x + \left(y \cdot 3.13060547623 - \frac{y \cdot 36.52704169880642}{z}\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= z -1.55e+25)
   (+ x (/ y 0.31942702700572795))
   (if (<= z 1800.0)
     (+
      x
      (*
       y
       (+
        (* z (- (* a 1.6453555072203998) (* b 32.324150453290734)))
        (* b 1.6453555072203998))))
     (+ x (- (* y 3.13060547623) (/ (* y 36.52704169880642) z))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (z <= -1.55e+25) {
		tmp = x + (y / 0.31942702700572795);
	} else if (z <= 1800.0) {
		tmp = x + (y * ((z * ((a * 1.6453555072203998) - (b * 32.324150453290734))) + (b * 1.6453555072203998)));
	} else {
		tmp = x + ((y * 3.13060547623) - ((y * 36.52704169880642) / z));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    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) :: tmp
    if (z <= (-1.55d+25)) then
        tmp = x + (y / 0.31942702700572795d0)
    else if (z <= 1800.0d0) then
        tmp = x + (y * ((z * ((a * 1.6453555072203998d0) - (b * 32.324150453290734d0))) + (b * 1.6453555072203998d0)))
    else
        tmp = x + ((y * 3.13060547623d0) - ((y * 36.52704169880642d0) / z))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (z <= -1.55e+25) {
		tmp = x + (y / 0.31942702700572795);
	} else if (z <= 1800.0) {
		tmp = x + (y * ((z * ((a * 1.6453555072203998) - (b * 32.324150453290734))) + (b * 1.6453555072203998)));
	} else {
		tmp = x + ((y * 3.13060547623) - ((y * 36.52704169880642) / z));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if z <= -1.55e+25:
		tmp = x + (y / 0.31942702700572795)
	elif z <= 1800.0:
		tmp = x + (y * ((z * ((a * 1.6453555072203998) - (b * 32.324150453290734))) + (b * 1.6453555072203998)))
	else:
		tmp = x + ((y * 3.13060547623) - ((y * 36.52704169880642) / z))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (z <= -1.55e+25)
		tmp = Float64(x + Float64(y / 0.31942702700572795));
	elseif (z <= 1800.0)
		tmp = Float64(x + Float64(y * Float64(Float64(z * Float64(Float64(a * 1.6453555072203998) - Float64(b * 32.324150453290734))) + Float64(b * 1.6453555072203998))));
	else
		tmp = Float64(x + Float64(Float64(y * 3.13060547623) - Float64(Float64(y * 36.52704169880642) / z)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (z <= -1.55e+25)
		tmp = x + (y / 0.31942702700572795);
	elseif (z <= 1800.0)
		tmp = x + (y * ((z * ((a * 1.6453555072203998) - (b * 32.324150453290734))) + (b * 1.6453555072203998)));
	else
		tmp = x + ((y * 3.13060547623) - ((y * 36.52704169880642) / z));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[z, -1.55e+25], N[(x + N[(y / 0.31942702700572795), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, 1800.0], N[(x + N[(y * N[(N[(z * N[(N[(a * 1.6453555072203998), $MachinePrecision] - N[(b * 32.324150453290734), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(b * 1.6453555072203998), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + N[(N[(y * 3.13060547623), $MachinePrecision] - N[(N[(y * 36.52704169880642), $MachinePrecision] / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -1.55 \cdot 10^{+25}:\\
\;\;\;\;x + \frac{y}{0.31942702700572795}\\

\mathbf{elif}\;z \leq 1800:\\
\;\;\;\;x + y \cdot \left(z \cdot \left(a \cdot 1.6453555072203998 - b \cdot 32.324150453290734\right) + b \cdot 1.6453555072203998\right)\\

\mathbf{else}:\\
\;\;\;\;x + \left(y \cdot 3.13060547623 - \frac{y \cdot 36.52704169880642}{z}\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if z < -1.5499999999999999e25

    1. Initial program 7.3%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Step-by-step derivation
      1. associate-/l*13.3%

        \[\leadsto x + \color{blue}{\frac{y}{\frac{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}}} \]
      2. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\color{blue}{\mathsf{fma}\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721, z, 0.607771387771\right)}}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      3. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749, z, 11.9400905721\right)}, z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      4. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right)}, z, 11.9400905721\right), z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      5. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\color{blue}{\mathsf{fma}\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a, z, b\right)}}} \]
      6. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t, z, a\right)}, z, b\right)}} \]
      7. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z \cdot 3.13060547623 + 11.1667541262, z, t\right)}, z, a\right), z, b\right)}} \]
      8. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right)}, z, t\right), z, a\right), z, b\right)}} \]
    3. Simplified13.3%

      \[\leadsto \color{blue}{x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), z, t\right), z, a\right), z, b\right)}}} \]
    4. Taylor expanded in z around inf 86.3%

      \[\leadsto x + \frac{y}{\color{blue}{0.31942702700572795}} \]

    if -1.5499999999999999e25 < z < 1800

    1. Initial program 99.7%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Step-by-step derivation
      1. associate-*l/99.7%

        \[\leadsto x + \color{blue}{\frac{y}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)} \]
      2. *-commutative99.7%

        \[\leadsto x + \frac{y}{\color{blue}{z \cdot \left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right)} + 0.607771387771} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      3. fma-def99.7%

        \[\leadsto x + \frac{y}{\color{blue}{\mathsf{fma}\left(z, \left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721, 0.607771387771\right)}} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      4. *-commutative99.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \color{blue}{z \cdot \left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right)} + 11.9400905721, 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      5. fma-def99.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \color{blue}{\mathsf{fma}\left(z, \left(z + 15.234687407\right) \cdot z + 31.4690115749, 11.9400905721\right)}, 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      6. *-commutative99.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \color{blue}{z \cdot \left(z + 15.234687407\right)} + 31.4690115749, 11.9400905721\right), 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      7. fma-def99.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \color{blue}{\mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right)}, 11.9400905721\right), 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      8. *-commutative99.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)} \cdot \left(\color{blue}{z \cdot \left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right)} + b\right) \]
      9. fma-def99.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)} \cdot \color{blue}{\mathsf{fma}\left(z, \left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a, b\right)} \]
    3. Simplified99.7%

      \[\leadsto \color{blue}{x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)} \cdot \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right)} \]
    4. Taylor expanded in z around 0 75.0%

      \[\leadsto x + \color{blue}{\left(\left(1.6453555072203998 \cdot \left(y \cdot a\right) - 32.324150453290734 \cdot \left(y \cdot b\right)\right) \cdot z + 1.6453555072203998 \cdot \left(y \cdot b\right)\right)} \]
    5. Taylor expanded in y around 0 90.0%

      \[\leadsto x + \color{blue}{y \cdot \left(\left(1.6453555072203998 \cdot a - 32.324150453290734 \cdot b\right) \cdot z + 1.6453555072203998 \cdot b\right)} \]

    if 1800 < z

    1. Initial program 15.0%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Step-by-step derivation
      1. associate-*l/16.8%

        \[\leadsto x + \color{blue}{\frac{y}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)} \]
      2. *-commutative16.8%

        \[\leadsto x + \frac{y}{\color{blue}{z \cdot \left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right)} + 0.607771387771} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      3. fma-def16.8%

        \[\leadsto x + \frac{y}{\color{blue}{\mathsf{fma}\left(z, \left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721, 0.607771387771\right)}} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      4. *-commutative16.8%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \color{blue}{z \cdot \left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right)} + 11.9400905721, 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      5. fma-def16.8%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \color{blue}{\mathsf{fma}\left(z, \left(z + 15.234687407\right) \cdot z + 31.4690115749, 11.9400905721\right)}, 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      6. *-commutative16.8%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \color{blue}{z \cdot \left(z + 15.234687407\right)} + 31.4690115749, 11.9400905721\right), 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      7. fma-def16.8%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \color{blue}{\mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right)}, 11.9400905721\right), 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      8. *-commutative16.8%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)} \cdot \left(\color{blue}{z \cdot \left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right)} + b\right) \]
      9. fma-def16.8%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)} \cdot \color{blue}{\mathsf{fma}\left(z, \left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a, b\right)} \]
    3. Simplified16.8%

      \[\leadsto \color{blue}{x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)} \cdot \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right)} \]
    4. Taylor expanded in z around -inf 88.7%

      \[\leadsto x + \color{blue}{\left(-1 \cdot \frac{-11.1667541262 \cdot y - -47.69379582500642 \cdot y}{z} + 3.13060547623 \cdot y\right)} \]
    5. Step-by-step derivation
      1. +-commutative88.7%

        \[\leadsto x + \color{blue}{\left(3.13060547623 \cdot y + -1 \cdot \frac{-11.1667541262 \cdot y - -47.69379582500642 \cdot y}{z}\right)} \]
      2. mul-1-neg88.7%

        \[\leadsto x + \left(3.13060547623 \cdot y + \color{blue}{\left(-\frac{-11.1667541262 \cdot y - -47.69379582500642 \cdot y}{z}\right)}\right) \]
      3. unsub-neg88.7%

        \[\leadsto x + \color{blue}{\left(3.13060547623 \cdot y - \frac{-11.1667541262 \cdot y - -47.69379582500642 \cdot y}{z}\right)} \]
      4. *-commutative88.7%

        \[\leadsto x + \left(\color{blue}{y \cdot 3.13060547623} - \frac{-11.1667541262 \cdot y - -47.69379582500642 \cdot y}{z}\right) \]
      5. distribute-rgt-out--88.7%

        \[\leadsto x + \left(y \cdot 3.13060547623 - \frac{\color{blue}{y \cdot \left(-11.1667541262 - -47.69379582500642\right)}}{z}\right) \]
      6. metadata-eval88.7%

        \[\leadsto x + \left(y \cdot 3.13060547623 - \frac{y \cdot \color{blue}{36.52704169880642}}{z}\right) \]
    6. Simplified88.7%

      \[\leadsto x + \color{blue}{\left(y \cdot 3.13060547623 - \frac{y \cdot 36.52704169880642}{z}\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification88.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -1.55 \cdot 10^{+25}:\\ \;\;\;\;x + \frac{y}{0.31942702700572795}\\ \mathbf{elif}\;z \leq 1800:\\ \;\;\;\;x + y \cdot \left(z \cdot \left(a \cdot 1.6453555072203998 - b \cdot 32.324150453290734\right) + b \cdot 1.6453555072203998\right)\\ \mathbf{else}:\\ \;\;\;\;x + \left(y \cdot 3.13060547623 - \frac{y \cdot 36.52704169880642}{z}\right)\\ \end{array} \]

Alternative 11: 83.7% accurate, 2.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -150000000000 \lor \neg \left(z \leq 9 \cdot 10^{-9}\right):\\ \;\;\;\;x + \frac{y}{0.31942702700572795}\\ \mathbf{else}:\\ \;\;\;\;x + y \cdot \left(b \cdot \left(1.6453555072203998 + z \cdot -32.324150453290734\right)\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= z -150000000000.0) (not (<= z 9e-9)))
   (+ x (/ y 0.31942702700572795))
   (+ x (* y (* b (+ 1.6453555072203998 (* z -32.324150453290734)))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((z <= -150000000000.0) || !(z <= 9e-9)) {
		tmp = x + (y / 0.31942702700572795);
	} else {
		tmp = x + (y * (b * (1.6453555072203998 + (z * -32.324150453290734))));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    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) :: tmp
    if ((z <= (-150000000000.0d0)) .or. (.not. (z <= 9d-9))) then
        tmp = x + (y / 0.31942702700572795d0)
    else
        tmp = x + (y * (b * (1.6453555072203998d0 + (z * (-32.324150453290734d0)))))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((z <= -150000000000.0) || !(z <= 9e-9)) {
		tmp = x + (y / 0.31942702700572795);
	} else {
		tmp = x + (y * (b * (1.6453555072203998 + (z * -32.324150453290734))));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (z <= -150000000000.0) or not (z <= 9e-9):
		tmp = x + (y / 0.31942702700572795)
	else:
		tmp = x + (y * (b * (1.6453555072203998 + (z * -32.324150453290734))))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((z <= -150000000000.0) || !(z <= 9e-9))
		tmp = Float64(x + Float64(y / 0.31942702700572795));
	else
		tmp = Float64(x + Float64(y * Float64(b * Float64(1.6453555072203998 + Float64(z * -32.324150453290734)))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((z <= -150000000000.0) || ~((z <= 9e-9)))
		tmp = x + (y / 0.31942702700572795);
	else
		tmp = x + (y * (b * (1.6453555072203998 + (z * -32.324150453290734))));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[z, -150000000000.0], N[Not[LessEqual[z, 9e-9]], $MachinePrecision]], N[(x + N[(y / 0.31942702700572795), $MachinePrecision]), $MachinePrecision], N[(x + N[(y * N[(b * N[(1.6453555072203998 + N[(z * -32.324150453290734), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -150000000000 \lor \neg \left(z \leq 9 \cdot 10^{-9}\right):\\
\;\;\;\;x + \frac{y}{0.31942702700572795}\\

\mathbf{else}:\\
\;\;\;\;x + y \cdot \left(b \cdot \left(1.6453555072203998 + z \cdot -32.324150453290734\right)\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -1.5e11 or 8.99999999999999953e-9 < z

    1. Initial program 14.6%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Step-by-step derivation
      1. associate-/l*18.5%

        \[\leadsto x + \color{blue}{\frac{y}{\frac{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}}} \]
      2. fma-def18.5%

        \[\leadsto x + \frac{y}{\frac{\color{blue}{\mathsf{fma}\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721, z, 0.607771387771\right)}}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      3. fma-def18.5%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749, z, 11.9400905721\right)}, z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      4. fma-def18.5%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right)}, z, 11.9400905721\right), z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      5. fma-def18.5%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\color{blue}{\mathsf{fma}\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a, z, b\right)}}} \]
      6. fma-def18.5%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t, z, a\right)}, z, b\right)}} \]
      7. fma-def18.5%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z \cdot 3.13060547623 + 11.1667541262, z, t\right)}, z, a\right), z, b\right)}} \]
      8. fma-def18.5%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right)}, z, t\right), z, a\right), z, b\right)}} \]
    3. Simplified18.5%

      \[\leadsto \color{blue}{x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), z, t\right), z, a\right), z, b\right)}}} \]
    4. Taylor expanded in z around inf 85.6%

      \[\leadsto x + \frac{y}{\color{blue}{0.31942702700572795}} \]

    if -1.5e11 < z < 8.99999999999999953e-9

    1. Initial program 99.7%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Step-by-step derivation
      1. associate-*l/99.7%

        \[\leadsto x + \color{blue}{\frac{y}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)} \]
      2. *-commutative99.7%

        \[\leadsto x + \frac{y}{\color{blue}{z \cdot \left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right)} + 0.607771387771} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      3. fma-def99.7%

        \[\leadsto x + \frac{y}{\color{blue}{\mathsf{fma}\left(z, \left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721, 0.607771387771\right)}} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      4. *-commutative99.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \color{blue}{z \cdot \left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right)} + 11.9400905721, 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      5. fma-def99.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \color{blue}{\mathsf{fma}\left(z, \left(z + 15.234687407\right) \cdot z + 31.4690115749, 11.9400905721\right)}, 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      6. *-commutative99.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \color{blue}{z \cdot \left(z + 15.234687407\right)} + 31.4690115749, 11.9400905721\right), 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      7. fma-def99.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \color{blue}{\mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right)}, 11.9400905721\right), 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      8. *-commutative99.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)} \cdot \left(\color{blue}{z \cdot \left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right)} + b\right) \]
      9. fma-def99.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)} \cdot \color{blue}{\mathsf{fma}\left(z, \left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a, b\right)} \]
    3. Simplified99.7%

      \[\leadsto \color{blue}{x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)} \cdot \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right)} \]
    4. Taylor expanded in z around 0 74.7%

      \[\leadsto x + \color{blue}{\left(\left(1.6453555072203998 \cdot \left(y \cdot a\right) - 32.324150453290734 \cdot \left(y \cdot b\right)\right) \cdot z + 1.6453555072203998 \cdot \left(y \cdot b\right)\right)} \]
    5. Taylor expanded in b around inf 76.9%

      \[\leadsto x + \color{blue}{\left(-32.324150453290734 \cdot \left(y \cdot z\right) + 1.6453555072203998 \cdot y\right) \cdot b} \]
    6. Taylor expanded in y around 0 76.9%

      \[\leadsto x + \color{blue}{y \cdot \left(b \cdot \left(1.6453555072203998 + -32.324150453290734 \cdot z\right)\right)} \]
    7. Step-by-step derivation
      1. *-commutative76.9%

        \[\leadsto x + y \cdot \left(b \cdot \left(1.6453555072203998 + \color{blue}{z \cdot -32.324150453290734}\right)\right) \]
    8. Simplified76.9%

      \[\leadsto x + \color{blue}{y \cdot \left(b \cdot \left(1.6453555072203998 + z \cdot -32.324150453290734\right)\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification81.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -150000000000 \lor \neg \left(z \leq 9 \cdot 10^{-9}\right):\\ \;\;\;\;x + \frac{y}{0.31942702700572795}\\ \mathbf{else}:\\ \;\;\;\;x + y \cdot \left(b \cdot \left(1.6453555072203998 + z \cdot -32.324150453290734\right)\right)\\ \end{array} \]

Alternative 12: 83.2% accurate, 2.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -4.1 \cdot 10^{+14}:\\ \;\;\;\;x + \frac{y}{0.31942702700572795}\\ \mathbf{elif}\;z \leq 5.2 \cdot 10^{-27}:\\ \;\;\;\;x + y \cdot \left(b \cdot \left(1.6453555072203998 + z \cdot -32.324150453290734\right)\right)\\ \mathbf{else}:\\ \;\;\;\;x + \left(y \cdot 3.13060547623 + -36.52704169880642 \cdot \frac{y}{z}\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= z -4.1e+14)
   (+ x (/ y 0.31942702700572795))
   (if (<= z 5.2e-27)
     (+ x (* y (* b (+ 1.6453555072203998 (* z -32.324150453290734)))))
     (+ x (+ (* y 3.13060547623) (* -36.52704169880642 (/ y z)))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (z <= -4.1e+14) {
		tmp = x + (y / 0.31942702700572795);
	} else if (z <= 5.2e-27) {
		tmp = x + (y * (b * (1.6453555072203998 + (z * -32.324150453290734))));
	} else {
		tmp = x + ((y * 3.13060547623) + (-36.52704169880642 * (y / z)));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    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) :: tmp
    if (z <= (-4.1d+14)) then
        tmp = x + (y / 0.31942702700572795d0)
    else if (z <= 5.2d-27) then
        tmp = x + (y * (b * (1.6453555072203998d0 + (z * (-32.324150453290734d0)))))
    else
        tmp = x + ((y * 3.13060547623d0) + ((-36.52704169880642d0) * (y / z)))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (z <= -4.1e+14) {
		tmp = x + (y / 0.31942702700572795);
	} else if (z <= 5.2e-27) {
		tmp = x + (y * (b * (1.6453555072203998 + (z * -32.324150453290734))));
	} else {
		tmp = x + ((y * 3.13060547623) + (-36.52704169880642 * (y / z)));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if z <= -4.1e+14:
		tmp = x + (y / 0.31942702700572795)
	elif z <= 5.2e-27:
		tmp = x + (y * (b * (1.6453555072203998 + (z * -32.324150453290734))))
	else:
		tmp = x + ((y * 3.13060547623) + (-36.52704169880642 * (y / z)))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (z <= -4.1e+14)
		tmp = Float64(x + Float64(y / 0.31942702700572795));
	elseif (z <= 5.2e-27)
		tmp = Float64(x + Float64(y * Float64(b * Float64(1.6453555072203998 + Float64(z * -32.324150453290734)))));
	else
		tmp = Float64(x + Float64(Float64(y * 3.13060547623) + Float64(-36.52704169880642 * Float64(y / z))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (z <= -4.1e+14)
		tmp = x + (y / 0.31942702700572795);
	elseif (z <= 5.2e-27)
		tmp = x + (y * (b * (1.6453555072203998 + (z * -32.324150453290734))));
	else
		tmp = x + ((y * 3.13060547623) + (-36.52704169880642 * (y / z)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[z, -4.1e+14], N[(x + N[(y / 0.31942702700572795), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, 5.2e-27], N[(x + N[(y * N[(b * N[(1.6453555072203998 + N[(z * -32.324150453290734), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + N[(N[(y * 3.13060547623), $MachinePrecision] + N[(-36.52704169880642 * N[(y / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -4.1 \cdot 10^{+14}:\\
\;\;\;\;x + \frac{y}{0.31942702700572795}\\

\mathbf{elif}\;z \leq 5.2 \cdot 10^{-27}:\\
\;\;\;\;x + y \cdot \left(b \cdot \left(1.6453555072203998 + z \cdot -32.324150453290734\right)\right)\\

\mathbf{else}:\\
\;\;\;\;x + \left(y \cdot 3.13060547623 + -36.52704169880642 \cdot \frac{y}{z}\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if z < -4.1e14

    1. Initial program 10.2%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Step-by-step derivation
      1. associate-/l*16.0%

        \[\leadsto x + \color{blue}{\frac{y}{\frac{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}}} \]
      2. fma-def16.0%

        \[\leadsto x + \frac{y}{\frac{\color{blue}{\mathsf{fma}\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721, z, 0.607771387771\right)}}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      3. fma-def16.0%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749, z, 11.9400905721\right)}, z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      4. fma-def16.0%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right)}, z, 11.9400905721\right), z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      5. fma-def16.0%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\color{blue}{\mathsf{fma}\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a, z, b\right)}}} \]
      6. fma-def16.0%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t, z, a\right)}, z, b\right)}} \]
      7. fma-def16.0%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z \cdot 3.13060547623 + 11.1667541262, z, t\right)}, z, a\right), z, b\right)}} \]
      8. fma-def16.0%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right)}, z, t\right), z, a\right), z, b\right)}} \]
    3. Simplified16.0%

      \[\leadsto \color{blue}{x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), z, t\right), z, a\right), z, b\right)}}} \]
    4. Taylor expanded in z around inf 85.3%

      \[\leadsto x + \frac{y}{\color{blue}{0.31942702700572795}} \]

    if -4.1e14 < z < 5.20000000000000034e-27

    1. Initial program 99.7%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Step-by-step derivation
      1. associate-*l/99.7%

        \[\leadsto x + \color{blue}{\frac{y}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)} \]
      2. *-commutative99.7%

        \[\leadsto x + \frac{y}{\color{blue}{z \cdot \left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right)} + 0.607771387771} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      3. fma-def99.7%

        \[\leadsto x + \frac{y}{\color{blue}{\mathsf{fma}\left(z, \left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721, 0.607771387771\right)}} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      4. *-commutative99.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \color{blue}{z \cdot \left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right)} + 11.9400905721, 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      5. fma-def99.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \color{blue}{\mathsf{fma}\left(z, \left(z + 15.234687407\right) \cdot z + 31.4690115749, 11.9400905721\right)}, 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      6. *-commutative99.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \color{blue}{z \cdot \left(z + 15.234687407\right)} + 31.4690115749, 11.9400905721\right), 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      7. fma-def99.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \color{blue}{\mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right)}, 11.9400905721\right), 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      8. *-commutative99.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)} \cdot \left(\color{blue}{z \cdot \left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right)} + b\right) \]
      9. fma-def99.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)} \cdot \color{blue}{\mathsf{fma}\left(z, \left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a, b\right)} \]
    3. Simplified99.7%

      \[\leadsto \color{blue}{x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)} \cdot \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right)} \]
    4. Taylor expanded in z around 0 75.0%

      \[\leadsto x + \color{blue}{\left(\left(1.6453555072203998 \cdot \left(y \cdot a\right) - 32.324150453290734 \cdot \left(y \cdot b\right)\right) \cdot z + 1.6453555072203998 \cdot \left(y \cdot b\right)\right)} \]
    5. Taylor expanded in b around inf 77.3%

      \[\leadsto x + \color{blue}{\left(-32.324150453290734 \cdot \left(y \cdot z\right) + 1.6453555072203998 \cdot y\right) \cdot b} \]
    6. Taylor expanded in y around 0 77.4%

      \[\leadsto x + \color{blue}{y \cdot \left(b \cdot \left(1.6453555072203998 + -32.324150453290734 \cdot z\right)\right)} \]
    7. Step-by-step derivation
      1. *-commutative77.4%

        \[\leadsto x + y \cdot \left(b \cdot \left(1.6453555072203998 + \color{blue}{z \cdot -32.324150453290734}\right)\right) \]
    8. Simplified77.4%

      \[\leadsto x + \color{blue}{y \cdot \left(b \cdot \left(1.6453555072203998 + z \cdot -32.324150453290734\right)\right)} \]

    if 5.20000000000000034e-27 < z

    1. Initial program 27.1%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Step-by-step derivation
      1. associate-/l*28.7%

        \[\leadsto x + \color{blue}{\frac{y}{\frac{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}}} \]
      2. fma-def28.7%

        \[\leadsto x + \frac{y}{\frac{\color{blue}{\mathsf{fma}\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721, z, 0.607771387771\right)}}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      3. fma-def28.7%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749, z, 11.9400905721\right)}, z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      4. fma-def28.8%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right)}, z, 11.9400905721\right), z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      5. fma-def28.8%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\color{blue}{\mathsf{fma}\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a, z, b\right)}}} \]
      6. fma-def28.8%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t, z, a\right)}, z, b\right)}} \]
      7. fma-def28.8%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z \cdot 3.13060547623 + 11.1667541262, z, t\right)}, z, a\right), z, b\right)}} \]
      8. fma-def28.8%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right)}, z, t\right), z, a\right), z, b\right)}} \]
    3. Simplified28.8%

      \[\leadsto \color{blue}{x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), z, t\right), z, a\right), z, b\right)}}} \]
    4. Taylor expanded in z around inf 82.6%

      \[\leadsto x + \frac{y}{\color{blue}{3.7269864963038164 \cdot \frac{1}{z} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)}} \]
    5. Step-by-step derivation
      1. associate-*r/82.6%

        \[\leadsto x + \frac{y}{\color{blue}{\frac{3.7269864963038164 \cdot 1}{z}} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)} \]
      2. metadata-eval82.6%

        \[\leadsto x + \frac{y}{\frac{\color{blue}{3.7269864963038164}}{z} + \left(0.31942702700572795 + -1 \cdot \frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)} \]
      3. mul-1-neg82.6%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \color{blue}{\left(-\frac{3.241970391368047 + 0.10203362558171805 \cdot t}{{z}^{2}}\right)}\right)} \]
      4. *-commutative82.6%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + \color{blue}{t \cdot 0.10203362558171805}}{{z}^{2}}\right)\right)} \]
      5. unpow282.6%

        \[\leadsto x + \frac{y}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + t \cdot 0.10203362558171805}{\color{blue}{z \cdot z}}\right)\right)} \]
    6. Simplified82.6%

      \[\leadsto x + \frac{y}{\color{blue}{\frac{3.7269864963038164}{z} + \left(0.31942702700572795 + \left(-\frac{3.241970391368047 + t \cdot 0.10203362558171805}{z \cdot z}\right)\right)}} \]
    7. Taylor expanded in z around inf 84.3%

      \[\leadsto x + \color{blue}{\left(-36.52704169880642 \cdot \frac{y}{z} + 3.13060547623 \cdot y\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification81.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -4.1 \cdot 10^{+14}:\\ \;\;\;\;x + \frac{y}{0.31942702700572795}\\ \mathbf{elif}\;z \leq 5.2 \cdot 10^{-27}:\\ \;\;\;\;x + y \cdot \left(b \cdot \left(1.6453555072203998 + z \cdot -32.324150453290734\right)\right)\\ \mathbf{else}:\\ \;\;\;\;x + \left(y \cdot 3.13060547623 + -36.52704169880642 \cdot \frac{y}{z}\right)\\ \end{array} \]

Alternative 13: 83.2% accurate, 2.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -2.3 \cdot 10^{+14}:\\ \;\;\;\;x + \frac{y}{0.31942702700572795}\\ \mathbf{elif}\;z \leq 5.2 \cdot 10^{-27}:\\ \;\;\;\;x + y \cdot \left(b \cdot \left(1.6453555072203998 + z \cdot -32.324150453290734\right)\right)\\ \mathbf{else}:\\ \;\;\;\;x + \left(y \cdot 3.13060547623 - \frac{y \cdot 36.52704169880642}{z}\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= z -2.3e+14)
   (+ x (/ y 0.31942702700572795))
   (if (<= z 5.2e-27)
     (+ x (* y (* b (+ 1.6453555072203998 (* z -32.324150453290734)))))
     (+ x (- (* y 3.13060547623) (/ (* y 36.52704169880642) z))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (z <= -2.3e+14) {
		tmp = x + (y / 0.31942702700572795);
	} else if (z <= 5.2e-27) {
		tmp = x + (y * (b * (1.6453555072203998 + (z * -32.324150453290734))));
	} else {
		tmp = x + ((y * 3.13060547623) - ((y * 36.52704169880642) / z));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    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) :: tmp
    if (z <= (-2.3d+14)) then
        tmp = x + (y / 0.31942702700572795d0)
    else if (z <= 5.2d-27) then
        tmp = x + (y * (b * (1.6453555072203998d0 + (z * (-32.324150453290734d0)))))
    else
        tmp = x + ((y * 3.13060547623d0) - ((y * 36.52704169880642d0) / z))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (z <= -2.3e+14) {
		tmp = x + (y / 0.31942702700572795);
	} else if (z <= 5.2e-27) {
		tmp = x + (y * (b * (1.6453555072203998 + (z * -32.324150453290734))));
	} else {
		tmp = x + ((y * 3.13060547623) - ((y * 36.52704169880642) / z));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if z <= -2.3e+14:
		tmp = x + (y / 0.31942702700572795)
	elif z <= 5.2e-27:
		tmp = x + (y * (b * (1.6453555072203998 + (z * -32.324150453290734))))
	else:
		tmp = x + ((y * 3.13060547623) - ((y * 36.52704169880642) / z))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (z <= -2.3e+14)
		tmp = Float64(x + Float64(y / 0.31942702700572795));
	elseif (z <= 5.2e-27)
		tmp = Float64(x + Float64(y * Float64(b * Float64(1.6453555072203998 + Float64(z * -32.324150453290734)))));
	else
		tmp = Float64(x + Float64(Float64(y * 3.13060547623) - Float64(Float64(y * 36.52704169880642) / z)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (z <= -2.3e+14)
		tmp = x + (y / 0.31942702700572795);
	elseif (z <= 5.2e-27)
		tmp = x + (y * (b * (1.6453555072203998 + (z * -32.324150453290734))));
	else
		tmp = x + ((y * 3.13060547623) - ((y * 36.52704169880642) / z));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[z, -2.3e+14], N[(x + N[(y / 0.31942702700572795), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, 5.2e-27], N[(x + N[(y * N[(b * N[(1.6453555072203998 + N[(z * -32.324150453290734), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + N[(N[(y * 3.13060547623), $MachinePrecision] - N[(N[(y * 36.52704169880642), $MachinePrecision] / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -2.3 \cdot 10^{+14}:\\
\;\;\;\;x + \frac{y}{0.31942702700572795}\\

\mathbf{elif}\;z \leq 5.2 \cdot 10^{-27}:\\
\;\;\;\;x + y \cdot \left(b \cdot \left(1.6453555072203998 + z \cdot -32.324150453290734\right)\right)\\

\mathbf{else}:\\
\;\;\;\;x + \left(y \cdot 3.13060547623 - \frac{y \cdot 36.52704169880642}{z}\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if z < -2.3e14

    1. Initial program 10.2%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Step-by-step derivation
      1. associate-/l*16.0%

        \[\leadsto x + \color{blue}{\frac{y}{\frac{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}}} \]
      2. fma-def16.0%

        \[\leadsto x + \frac{y}{\frac{\color{blue}{\mathsf{fma}\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721, z, 0.607771387771\right)}}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      3. fma-def16.0%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749, z, 11.9400905721\right)}, z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      4. fma-def16.0%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right)}, z, 11.9400905721\right), z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      5. fma-def16.0%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\color{blue}{\mathsf{fma}\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a, z, b\right)}}} \]
      6. fma-def16.0%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t, z, a\right)}, z, b\right)}} \]
      7. fma-def16.0%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z \cdot 3.13060547623 + 11.1667541262, z, t\right)}, z, a\right), z, b\right)}} \]
      8. fma-def16.0%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right)}, z, t\right), z, a\right), z, b\right)}} \]
    3. Simplified16.0%

      \[\leadsto \color{blue}{x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), z, t\right), z, a\right), z, b\right)}}} \]
    4. Taylor expanded in z around inf 85.3%

      \[\leadsto x + \frac{y}{\color{blue}{0.31942702700572795}} \]

    if -2.3e14 < z < 5.20000000000000034e-27

    1. Initial program 99.7%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Step-by-step derivation
      1. associate-*l/99.7%

        \[\leadsto x + \color{blue}{\frac{y}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)} \]
      2. *-commutative99.7%

        \[\leadsto x + \frac{y}{\color{blue}{z \cdot \left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right)} + 0.607771387771} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      3. fma-def99.7%

        \[\leadsto x + \frac{y}{\color{blue}{\mathsf{fma}\left(z, \left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721, 0.607771387771\right)}} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      4. *-commutative99.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \color{blue}{z \cdot \left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right)} + 11.9400905721, 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      5. fma-def99.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \color{blue}{\mathsf{fma}\left(z, \left(z + 15.234687407\right) \cdot z + 31.4690115749, 11.9400905721\right)}, 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      6. *-commutative99.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \color{blue}{z \cdot \left(z + 15.234687407\right)} + 31.4690115749, 11.9400905721\right), 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      7. fma-def99.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \color{blue}{\mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right)}, 11.9400905721\right), 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      8. *-commutative99.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)} \cdot \left(\color{blue}{z \cdot \left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right)} + b\right) \]
      9. fma-def99.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)} \cdot \color{blue}{\mathsf{fma}\left(z, \left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a, b\right)} \]
    3. Simplified99.7%

      \[\leadsto \color{blue}{x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)} \cdot \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right)} \]
    4. Taylor expanded in z around 0 75.0%

      \[\leadsto x + \color{blue}{\left(\left(1.6453555072203998 \cdot \left(y \cdot a\right) - 32.324150453290734 \cdot \left(y \cdot b\right)\right) \cdot z + 1.6453555072203998 \cdot \left(y \cdot b\right)\right)} \]
    5. Taylor expanded in b around inf 77.3%

      \[\leadsto x + \color{blue}{\left(-32.324150453290734 \cdot \left(y \cdot z\right) + 1.6453555072203998 \cdot y\right) \cdot b} \]
    6. Taylor expanded in y around 0 77.4%

      \[\leadsto x + \color{blue}{y \cdot \left(b \cdot \left(1.6453555072203998 + -32.324150453290734 \cdot z\right)\right)} \]
    7. Step-by-step derivation
      1. *-commutative77.4%

        \[\leadsto x + y \cdot \left(b \cdot \left(1.6453555072203998 + \color{blue}{z \cdot -32.324150453290734}\right)\right) \]
    8. Simplified77.4%

      \[\leadsto x + \color{blue}{y \cdot \left(b \cdot \left(1.6453555072203998 + z \cdot -32.324150453290734\right)\right)} \]

    if 5.20000000000000034e-27 < z

    1. Initial program 27.1%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Step-by-step derivation
      1. associate-*l/28.7%

        \[\leadsto x + \color{blue}{\frac{y}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)} \]
      2. *-commutative28.7%

        \[\leadsto x + \frac{y}{\color{blue}{z \cdot \left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right)} + 0.607771387771} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      3. fma-def28.7%

        \[\leadsto x + \frac{y}{\color{blue}{\mathsf{fma}\left(z, \left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721, 0.607771387771\right)}} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      4. *-commutative28.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \color{blue}{z \cdot \left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right)} + 11.9400905721, 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      5. fma-def28.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \color{blue}{\mathsf{fma}\left(z, \left(z + 15.234687407\right) \cdot z + 31.4690115749, 11.9400905721\right)}, 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      6. *-commutative28.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \color{blue}{z \cdot \left(z + 15.234687407\right)} + 31.4690115749, 11.9400905721\right), 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      7. fma-def28.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \color{blue}{\mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right)}, 11.9400905721\right), 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      8. *-commutative28.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)} \cdot \left(\color{blue}{z \cdot \left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right)} + b\right) \]
      9. fma-def28.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)} \cdot \color{blue}{\mathsf{fma}\left(z, \left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a, b\right)} \]
    3. Simplified28.7%

      \[\leadsto \color{blue}{x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)} \cdot \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right)} \]
    4. Taylor expanded in z around -inf 85.9%

      \[\leadsto x + \color{blue}{\left(-1 \cdot \frac{-11.1667541262 \cdot y - -47.69379582500642 \cdot y}{z} + 3.13060547623 \cdot y\right)} \]
    5. Step-by-step derivation
      1. +-commutative85.9%

        \[\leadsto x + \color{blue}{\left(3.13060547623 \cdot y + -1 \cdot \frac{-11.1667541262 \cdot y - -47.69379582500642 \cdot y}{z}\right)} \]
      2. mul-1-neg85.9%

        \[\leadsto x + \left(3.13060547623 \cdot y + \color{blue}{\left(-\frac{-11.1667541262 \cdot y - -47.69379582500642 \cdot y}{z}\right)}\right) \]
      3. unsub-neg85.9%

        \[\leadsto x + \color{blue}{\left(3.13060547623 \cdot y - \frac{-11.1667541262 \cdot y - -47.69379582500642 \cdot y}{z}\right)} \]
      4. *-commutative85.9%

        \[\leadsto x + \left(\color{blue}{y \cdot 3.13060547623} - \frac{-11.1667541262 \cdot y - -47.69379582500642 \cdot y}{z}\right) \]
      5. distribute-rgt-out--85.9%

        \[\leadsto x + \left(y \cdot 3.13060547623 - \frac{\color{blue}{y \cdot \left(-11.1667541262 - -47.69379582500642\right)}}{z}\right) \]
      6. metadata-eval85.9%

        \[\leadsto x + \left(y \cdot 3.13060547623 - \frac{y \cdot \color{blue}{36.52704169880642}}{z}\right) \]
    6. Simplified85.9%

      \[\leadsto x + \color{blue}{\left(y \cdot 3.13060547623 - \frac{y \cdot 36.52704169880642}{z}\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification81.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -2.3 \cdot 10^{+14}:\\ \;\;\;\;x + \frac{y}{0.31942702700572795}\\ \mathbf{elif}\;z \leq 5.2 \cdot 10^{-27}:\\ \;\;\;\;x + y \cdot \left(b \cdot \left(1.6453555072203998 + z \cdot -32.324150453290734\right)\right)\\ \mathbf{else}:\\ \;\;\;\;x + \left(y \cdot 3.13060547623 - \frac{y \cdot 36.52704169880642}{z}\right)\\ \end{array} \]

Alternative 14: 90.3% accurate, 2.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -9 \cdot 10^{+20}:\\ \;\;\;\;x + \frac{y}{0.31942702700572795}\\ \mathbf{elif}\;z \leq 8.8 \cdot 10^{+15}:\\ \;\;\;\;x + \frac{y \cdot \left(b + z \cdot a\right)}{0.607771387771}\\ \mathbf{else}:\\ \;\;\;\;x + \left(y \cdot 3.13060547623 - \frac{y \cdot 36.52704169880642}{z}\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= z -9e+20)
   (+ x (/ y 0.31942702700572795))
   (if (<= z 8.8e+15)
     (+ x (/ (* y (+ b (* z a))) 0.607771387771))
     (+ x (- (* y 3.13060547623) (/ (* y 36.52704169880642) z))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (z <= -9e+20) {
		tmp = x + (y / 0.31942702700572795);
	} else if (z <= 8.8e+15) {
		tmp = x + ((y * (b + (z * a))) / 0.607771387771);
	} else {
		tmp = x + ((y * 3.13060547623) - ((y * 36.52704169880642) / z));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    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) :: tmp
    if (z <= (-9d+20)) then
        tmp = x + (y / 0.31942702700572795d0)
    else if (z <= 8.8d+15) then
        tmp = x + ((y * (b + (z * a))) / 0.607771387771d0)
    else
        tmp = x + ((y * 3.13060547623d0) - ((y * 36.52704169880642d0) / z))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (z <= -9e+20) {
		tmp = x + (y / 0.31942702700572795);
	} else if (z <= 8.8e+15) {
		tmp = x + ((y * (b + (z * a))) / 0.607771387771);
	} else {
		tmp = x + ((y * 3.13060547623) - ((y * 36.52704169880642) / z));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if z <= -9e+20:
		tmp = x + (y / 0.31942702700572795)
	elif z <= 8.8e+15:
		tmp = x + ((y * (b + (z * a))) / 0.607771387771)
	else:
		tmp = x + ((y * 3.13060547623) - ((y * 36.52704169880642) / z))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (z <= -9e+20)
		tmp = Float64(x + Float64(y / 0.31942702700572795));
	elseif (z <= 8.8e+15)
		tmp = Float64(x + Float64(Float64(y * Float64(b + Float64(z * a))) / 0.607771387771));
	else
		tmp = Float64(x + Float64(Float64(y * 3.13060547623) - Float64(Float64(y * 36.52704169880642) / z)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (z <= -9e+20)
		tmp = x + (y / 0.31942702700572795);
	elseif (z <= 8.8e+15)
		tmp = x + ((y * (b + (z * a))) / 0.607771387771);
	else
		tmp = x + ((y * 3.13060547623) - ((y * 36.52704169880642) / z));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[z, -9e+20], N[(x + N[(y / 0.31942702700572795), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, 8.8e+15], N[(x + N[(N[(y * N[(b + N[(z * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / 0.607771387771), $MachinePrecision]), $MachinePrecision], N[(x + N[(N[(y * 3.13060547623), $MachinePrecision] - N[(N[(y * 36.52704169880642), $MachinePrecision] / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -9 \cdot 10^{+20}:\\
\;\;\;\;x + \frac{y}{0.31942702700572795}\\

\mathbf{elif}\;z \leq 8.8 \cdot 10^{+15}:\\
\;\;\;\;x + \frac{y \cdot \left(b + z \cdot a\right)}{0.607771387771}\\

\mathbf{else}:\\
\;\;\;\;x + \left(y \cdot 3.13060547623 - \frac{y \cdot 36.52704169880642}{z}\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if z < -9e20

    1. Initial program 7.3%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Step-by-step derivation
      1. associate-/l*13.3%

        \[\leadsto x + \color{blue}{\frac{y}{\frac{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}}} \]
      2. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\color{blue}{\mathsf{fma}\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721, z, 0.607771387771\right)}}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      3. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749, z, 11.9400905721\right)}, z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      4. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right)}, z, 11.9400905721\right), z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      5. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\color{blue}{\mathsf{fma}\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a, z, b\right)}}} \]
      6. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t, z, a\right)}, z, b\right)}} \]
      7. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z \cdot 3.13060547623 + 11.1667541262, z, t\right)}, z, a\right), z, b\right)}} \]
      8. fma-def13.3%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right)}, z, t\right), z, a\right), z, b\right)}} \]
    3. Simplified13.3%

      \[\leadsto \color{blue}{x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), z, t\right), z, a\right), z, b\right)}}} \]
    4. Taylor expanded in z around inf 86.3%

      \[\leadsto x + \frac{y}{\color{blue}{0.31942702700572795}} \]

    if -9e20 < z < 8.8e15

    1. Initial program 99.7%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Taylor expanded in z around 0 96.0%

      \[\leadsto x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\color{blue}{11.9400905721 \cdot z} + 0.607771387771} \]
    3. Step-by-step derivation
      1. *-commutative96.0%

        \[\leadsto x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\color{blue}{z \cdot 11.9400905721} + 0.607771387771} \]
    4. Simplified96.0%

      \[\leadsto x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\color{blue}{z \cdot 11.9400905721} + 0.607771387771} \]
    5. Taylor expanded in z around 0 87.5%

      \[\leadsto x + \frac{\color{blue}{y \cdot b + a \cdot \left(y \cdot z\right)}}{z \cdot 11.9400905721 + 0.607771387771} \]
    6. Step-by-step derivation
      1. +-commutative87.5%

        \[\leadsto x + \frac{\color{blue}{a \cdot \left(y \cdot z\right) + y \cdot b}}{z \cdot 11.9400905721 + 0.607771387771} \]
      2. associate-*r*83.1%

        \[\leadsto x + \frac{\color{blue}{\left(a \cdot y\right) \cdot z} + y \cdot b}{z \cdot 11.9400905721 + 0.607771387771} \]
      3. *-commutative83.1%

        \[\leadsto x + \frac{\color{blue}{\left(y \cdot a\right)} \cdot z + y \cdot b}{z \cdot 11.9400905721 + 0.607771387771} \]
      4. associate-*r*87.9%

        \[\leadsto x + \frac{\color{blue}{y \cdot \left(a \cdot z\right)} + y \cdot b}{z \cdot 11.9400905721 + 0.607771387771} \]
      5. distribute-lft-out88.6%

        \[\leadsto x + \frac{\color{blue}{y \cdot \left(a \cdot z + b\right)}}{z \cdot 11.9400905721 + 0.607771387771} \]
      6. *-commutative88.6%

        \[\leadsto x + \frac{y \cdot \left(\color{blue}{z \cdot a} + b\right)}{z \cdot 11.9400905721 + 0.607771387771} \]
    7. Simplified88.6%

      \[\leadsto x + \frac{\color{blue}{y \cdot \left(z \cdot a + b\right)}}{z \cdot 11.9400905721 + 0.607771387771} \]
    8. Taylor expanded in z around 0 89.2%

      \[\leadsto x + \frac{y \cdot \left(z \cdot a + b\right)}{\color{blue}{0.607771387771}} \]

    if 8.8e15 < z

    1. Initial program 13.4%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Step-by-step derivation
      1. associate-*l/15.2%

        \[\leadsto x + \color{blue}{\frac{y}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)} \]
      2. *-commutative15.2%

        \[\leadsto x + \frac{y}{\color{blue}{z \cdot \left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right)} + 0.607771387771} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      3. fma-def15.2%

        \[\leadsto x + \frac{y}{\color{blue}{\mathsf{fma}\left(z, \left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721, 0.607771387771\right)}} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      4. *-commutative15.2%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \color{blue}{z \cdot \left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right)} + 11.9400905721, 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      5. fma-def15.2%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \color{blue}{\mathsf{fma}\left(z, \left(z + 15.234687407\right) \cdot z + 31.4690115749, 11.9400905721\right)}, 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      6. *-commutative15.2%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \color{blue}{z \cdot \left(z + 15.234687407\right)} + 31.4690115749, 11.9400905721\right), 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      7. fma-def15.2%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \color{blue}{\mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right)}, 11.9400905721\right), 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      8. *-commutative15.2%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)} \cdot \left(\color{blue}{z \cdot \left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right)} + b\right) \]
      9. fma-def15.2%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)} \cdot \color{blue}{\mathsf{fma}\left(z, \left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a, b\right)} \]
    3. Simplified15.2%

      \[\leadsto \color{blue}{x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)} \cdot \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right)} \]
    4. Taylor expanded in z around -inf 90.4%

      \[\leadsto x + \color{blue}{\left(-1 \cdot \frac{-11.1667541262 \cdot y - -47.69379582500642 \cdot y}{z} + 3.13060547623 \cdot y\right)} \]
    5. Step-by-step derivation
      1. +-commutative90.4%

        \[\leadsto x + \color{blue}{\left(3.13060547623 \cdot y + -1 \cdot \frac{-11.1667541262 \cdot y - -47.69379582500642 \cdot y}{z}\right)} \]
      2. mul-1-neg90.4%

        \[\leadsto x + \left(3.13060547623 \cdot y + \color{blue}{\left(-\frac{-11.1667541262 \cdot y - -47.69379582500642 \cdot y}{z}\right)}\right) \]
      3. unsub-neg90.4%

        \[\leadsto x + \color{blue}{\left(3.13060547623 \cdot y - \frac{-11.1667541262 \cdot y - -47.69379582500642 \cdot y}{z}\right)} \]
      4. *-commutative90.4%

        \[\leadsto x + \left(\color{blue}{y \cdot 3.13060547623} - \frac{-11.1667541262 \cdot y - -47.69379582500642 \cdot y}{z}\right) \]
      5. distribute-rgt-out--90.4%

        \[\leadsto x + \left(y \cdot 3.13060547623 - \frac{\color{blue}{y \cdot \left(-11.1667541262 - -47.69379582500642\right)}}{z}\right) \]
      6. metadata-eval90.4%

        \[\leadsto x + \left(y \cdot 3.13060547623 - \frac{y \cdot \color{blue}{36.52704169880642}}{z}\right) \]
    6. Simplified90.4%

      \[\leadsto x + \color{blue}{\left(y \cdot 3.13060547623 - \frac{y \cdot 36.52704169880642}{z}\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification88.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -9 \cdot 10^{+20}:\\ \;\;\;\;x + \frac{y}{0.31942702700572795}\\ \mathbf{elif}\;z \leq 8.8 \cdot 10^{+15}:\\ \;\;\;\;x + \frac{y \cdot \left(b + z \cdot a\right)}{0.607771387771}\\ \mathbf{else}:\\ \;\;\;\;x + \left(y \cdot 3.13060547623 - \frac{y \cdot 36.52704169880642}{z}\right)\\ \end{array} \]

Alternative 15: 83.7% accurate, 3.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -1.55 \cdot 10^{+14} \lor \neg \left(z \leq 105000000000\right):\\ \;\;\;\;x + \frac{y}{0.31942702700572795}\\ \mathbf{else}:\\ \;\;\;\;x + 1.6453555072203998 \cdot \left(y \cdot b\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= z -1.55e+14) (not (<= z 105000000000.0)))
   (+ x (/ y 0.31942702700572795))
   (+ x (* 1.6453555072203998 (* y b)))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((z <= -1.55e+14) || !(z <= 105000000000.0)) {
		tmp = x + (y / 0.31942702700572795);
	} else {
		tmp = x + (1.6453555072203998 * (y * b));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    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) :: tmp
    if ((z <= (-1.55d+14)) .or. (.not. (z <= 105000000000.0d0))) then
        tmp = x + (y / 0.31942702700572795d0)
    else
        tmp = x + (1.6453555072203998d0 * (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 tmp;
	if ((z <= -1.55e+14) || !(z <= 105000000000.0)) {
		tmp = x + (y / 0.31942702700572795);
	} else {
		tmp = x + (1.6453555072203998 * (y * b));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (z <= -1.55e+14) or not (z <= 105000000000.0):
		tmp = x + (y / 0.31942702700572795)
	else:
		tmp = x + (1.6453555072203998 * (y * b))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((z <= -1.55e+14) || !(z <= 105000000000.0))
		tmp = Float64(x + Float64(y / 0.31942702700572795));
	else
		tmp = Float64(x + Float64(1.6453555072203998 * Float64(y * b)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((z <= -1.55e+14) || ~((z <= 105000000000.0)))
		tmp = x + (y / 0.31942702700572795);
	else
		tmp = x + (1.6453555072203998 * (y * b));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[z, -1.55e+14], N[Not[LessEqual[z, 105000000000.0]], $MachinePrecision]], N[(x + N[(y / 0.31942702700572795), $MachinePrecision]), $MachinePrecision], N[(x + N[(1.6453555072203998 * N[(y * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -1.55 \cdot 10^{+14} \lor \neg \left(z \leq 105000000000\right):\\
\;\;\;\;x + \frac{y}{0.31942702700572795}\\

\mathbf{else}:\\
\;\;\;\;x + 1.6453555072203998 \cdot \left(y \cdot b\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -1.55e14 or 1.05e11 < z

    1. Initial program 11.7%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Step-by-step derivation
      1. associate-/l*15.7%

        \[\leadsto x + \color{blue}{\frac{y}{\frac{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}}} \]
      2. fma-def15.7%

        \[\leadsto x + \frac{y}{\frac{\color{blue}{\mathsf{fma}\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721, z, 0.607771387771\right)}}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      3. fma-def15.7%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749, z, 11.9400905721\right)}, z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      4. fma-def15.7%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right)}, z, 11.9400905721\right), z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      5. fma-def15.7%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\color{blue}{\mathsf{fma}\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a, z, b\right)}}} \]
      6. fma-def15.7%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t, z, a\right)}, z, b\right)}} \]
      7. fma-def15.7%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z \cdot 3.13060547623 + 11.1667541262, z, t\right)}, z, a\right), z, b\right)}} \]
      8. fma-def15.7%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right)}, z, t\right), z, a\right), z, b\right)}} \]
    3. Simplified15.7%

      \[\leadsto \color{blue}{x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), z, t\right), z, a\right), z, b\right)}}} \]
    4. Taylor expanded in z around inf 86.7%

      \[\leadsto x + \frac{y}{\color{blue}{0.31942702700572795}} \]

    if -1.55e14 < z < 1.05e11

    1. Initial program 99.7%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Step-by-step derivation
      1. associate-*l/99.7%

        \[\leadsto x + \color{blue}{\frac{y}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)} \]
      2. *-commutative99.7%

        \[\leadsto x + \frac{y}{\color{blue}{z \cdot \left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right)} + 0.607771387771} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      3. fma-def99.7%

        \[\leadsto x + \frac{y}{\color{blue}{\mathsf{fma}\left(z, \left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721, 0.607771387771\right)}} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      4. *-commutative99.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \color{blue}{z \cdot \left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right)} + 11.9400905721, 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      5. fma-def99.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \color{blue}{\mathsf{fma}\left(z, \left(z + 15.234687407\right) \cdot z + 31.4690115749, 11.9400905721\right)}, 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      6. *-commutative99.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \color{blue}{z \cdot \left(z + 15.234687407\right)} + 31.4690115749, 11.9400905721\right), 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      7. fma-def99.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \color{blue}{\mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right)}, 11.9400905721\right), 0.607771387771\right)} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \]
      8. *-commutative99.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)} \cdot \left(\color{blue}{z \cdot \left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right)} + b\right) \]
      9. fma-def99.7%

        \[\leadsto x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)} \cdot \color{blue}{\mathsf{fma}\left(z, \left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a, b\right)} \]
    3. Simplified99.7%

      \[\leadsto \color{blue}{x + \frac{y}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)} \cdot \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right)} \]
    4. Taylor expanded in z around 0 76.1%

      \[\leadsto x + \color{blue}{1.6453555072203998 \cdot \left(y \cdot b\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification80.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -1.55 \cdot 10^{+14} \lor \neg \left(z \leq 105000000000\right):\\ \;\;\;\;x + \frac{y}{0.31942702700572795}\\ \mathbf{else}:\\ \;\;\;\;x + 1.6453555072203998 \cdot \left(y \cdot b\right)\\ \end{array} \]

Alternative 16: 83.7% accurate, 3.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -2.5 \cdot 10^{+15} \lor \neg \left(z \leq 6.5 \cdot 10^{+16}\right):\\ \;\;\;\;x + \frac{y}{0.31942702700572795}\\ \mathbf{else}:\\ \;\;\;\;x + b \cdot \left(y \cdot 1.6453555072203998\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= z -2.5e+15) (not (<= z 6.5e+16)))
   (+ x (/ y 0.31942702700572795))
   (+ x (* b (* y 1.6453555072203998)))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((z <= -2.5e+15) || !(z <= 6.5e+16)) {
		tmp = x + (y / 0.31942702700572795);
	} else {
		tmp = x + (b * (y * 1.6453555072203998));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    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) :: tmp
    if ((z <= (-2.5d+15)) .or. (.not. (z <= 6.5d+16))) then
        tmp = x + (y / 0.31942702700572795d0)
    else
        tmp = x + (b * (y * 1.6453555072203998d0))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((z <= -2.5e+15) || !(z <= 6.5e+16)) {
		tmp = x + (y / 0.31942702700572795);
	} else {
		tmp = x + (b * (y * 1.6453555072203998));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (z <= -2.5e+15) or not (z <= 6.5e+16):
		tmp = x + (y / 0.31942702700572795)
	else:
		tmp = x + (b * (y * 1.6453555072203998))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((z <= -2.5e+15) || !(z <= 6.5e+16))
		tmp = Float64(x + Float64(y / 0.31942702700572795));
	else
		tmp = Float64(x + Float64(b * Float64(y * 1.6453555072203998)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((z <= -2.5e+15) || ~((z <= 6.5e+16)))
		tmp = x + (y / 0.31942702700572795);
	else
		tmp = x + (b * (y * 1.6453555072203998));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[z, -2.5e+15], N[Not[LessEqual[z, 6.5e+16]], $MachinePrecision]], N[(x + N[(y / 0.31942702700572795), $MachinePrecision]), $MachinePrecision], N[(x + N[(b * N[(y * 1.6453555072203998), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -2.5 \cdot 10^{+15} \lor \neg \left(z \leq 6.5 \cdot 10^{+16}\right):\\
\;\;\;\;x + \frac{y}{0.31942702700572795}\\

\mathbf{else}:\\
\;\;\;\;x + b \cdot \left(y \cdot 1.6453555072203998\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -2.5e15 or 6.5e16 < z

    1. Initial program 11.7%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Step-by-step derivation
      1. associate-/l*15.7%

        \[\leadsto x + \color{blue}{\frac{y}{\frac{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}}} \]
      2. fma-def15.7%

        \[\leadsto x + \frac{y}{\frac{\color{blue}{\mathsf{fma}\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721, z, 0.607771387771\right)}}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      3. fma-def15.7%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749, z, 11.9400905721\right)}, z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      4. fma-def15.7%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right)}, z, 11.9400905721\right), z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
      5. fma-def15.7%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\color{blue}{\mathsf{fma}\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a, z, b\right)}}} \]
      6. fma-def15.7%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t, z, a\right)}, z, b\right)}} \]
      7. fma-def15.7%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z \cdot 3.13060547623 + 11.1667541262, z, t\right)}, z, a\right), z, b\right)}} \]
      8. fma-def15.7%

        \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right)}, z, t\right), z, a\right), z, b\right)}} \]
    3. Simplified15.7%

      \[\leadsto \color{blue}{x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), z, t\right), z, a\right), z, b\right)}}} \]
    4. Taylor expanded in z around inf 86.7%

      \[\leadsto x + \frac{y}{\color{blue}{0.31942702700572795}} \]

    if -2.5e15 < z < 6.5e16

    1. Initial program 99.7%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Taylor expanded in z around 0 96.6%

      \[\leadsto x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\color{blue}{11.9400905721 \cdot z} + 0.607771387771} \]
    3. Step-by-step derivation
      1. *-commutative96.6%

        \[\leadsto x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\color{blue}{z \cdot 11.9400905721} + 0.607771387771} \]
    4. Simplified96.6%

      \[\leadsto x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\color{blue}{z \cdot 11.9400905721} + 0.607771387771} \]
    5. Taylor expanded in z around 0 88.1%

      \[\leadsto x + \frac{\color{blue}{y \cdot b + a \cdot \left(y \cdot z\right)}}{z \cdot 11.9400905721 + 0.607771387771} \]
    6. Step-by-step derivation
      1. +-commutative88.1%

        \[\leadsto x + \frac{\color{blue}{a \cdot \left(y \cdot z\right) + y \cdot b}}{z \cdot 11.9400905721 + 0.607771387771} \]
      2. associate-*r*83.6%

        \[\leadsto x + \frac{\color{blue}{\left(a \cdot y\right) \cdot z} + y \cdot b}{z \cdot 11.9400905721 + 0.607771387771} \]
      3. *-commutative83.6%

        \[\leadsto x + \frac{\color{blue}{\left(y \cdot a\right)} \cdot z + y \cdot b}{z \cdot 11.9400905721 + 0.607771387771} \]
      4. associate-*r*88.5%

        \[\leadsto x + \frac{\color{blue}{y \cdot \left(a \cdot z\right)} + y \cdot b}{z \cdot 11.9400905721 + 0.607771387771} \]
      5. distribute-lft-out89.2%

        \[\leadsto x + \frac{\color{blue}{y \cdot \left(a \cdot z + b\right)}}{z \cdot 11.9400905721 + 0.607771387771} \]
      6. *-commutative89.2%

        \[\leadsto x + \frac{y \cdot \left(\color{blue}{z \cdot a} + b\right)}{z \cdot 11.9400905721 + 0.607771387771} \]
    7. Simplified89.2%

      \[\leadsto x + \frac{\color{blue}{y \cdot \left(z \cdot a + b\right)}}{z \cdot 11.9400905721 + 0.607771387771} \]
    8. Taylor expanded in z around 0 76.1%

      \[\leadsto x + \color{blue}{1.6453555072203998 \cdot \left(y \cdot b\right)} \]
    9. Step-by-step derivation
      1. associate-*r*76.2%

        \[\leadsto x + \color{blue}{\left(1.6453555072203998 \cdot y\right) \cdot b} \]
      2. *-commutative76.2%

        \[\leadsto x + \color{blue}{\left(y \cdot 1.6453555072203998\right)} \cdot b \]
    10. Simplified76.2%

      \[\leadsto x + \color{blue}{\left(y \cdot 1.6453555072203998\right) \cdot b} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification81.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -2.5 \cdot 10^{+15} \lor \neg \left(z \leq 6.5 \cdot 10^{+16}\right):\\ \;\;\;\;x + \frac{y}{0.31942702700572795}\\ \mathbf{else}:\\ \;\;\;\;x + b \cdot \left(y \cdot 1.6453555072203998\right)\\ \end{array} \]

Alternative 17: 62.5% accurate, 7.4× speedup?

\[\begin{array}{l} \\ x + \frac{y}{0.31942702700572795} \end{array} \]
(FPCore (x y z t a b) :precision binary64 (+ x (/ y 0.31942702700572795)))
double code(double x, double y, double z, double t, double a, double b) {
	return x + (y / 0.31942702700572795);
}
real(8) function code(x, y, z, t, a, b)
    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
    code = x + (y / 0.31942702700572795d0)
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	return x + (y / 0.31942702700572795);
}
def code(x, y, z, t, a, b):
	return x + (y / 0.31942702700572795)
function code(x, y, z, t, a, b)
	return Float64(x + Float64(y / 0.31942702700572795))
end
function tmp = code(x, y, z, t, a, b)
	tmp = x + (y / 0.31942702700572795);
end
code[x_, y_, z_, t_, a_, b_] := N[(x + N[(y / 0.31942702700572795), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
x + \frac{y}{0.31942702700572795}
\end{array}
Derivation
  1. Initial program 59.5%

    \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
  2. Step-by-step derivation
    1. associate-/l*61.3%

      \[\leadsto x + \color{blue}{\frac{y}{\frac{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}}} \]
    2. fma-def61.3%

      \[\leadsto x + \frac{y}{\frac{\color{blue}{\mathsf{fma}\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721, z, 0.607771387771\right)}}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
    3. fma-def61.3%

      \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749, z, 11.9400905721\right)}, z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
    4. fma-def61.3%

      \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right)}, z, 11.9400905721\right), z, 0.607771387771\right)}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}} \]
    5. fma-def61.3%

      \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\color{blue}{\mathsf{fma}\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a, z, b\right)}}} \]
    6. fma-def61.3%

      \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t, z, a\right)}, z, b\right)}} \]
    7. fma-def61.3%

      \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z \cdot 3.13060547623 + 11.1667541262, z, t\right)}, z, a\right), z, b\right)}} \]
    8. fma-def61.3%

      \[\leadsto x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right)}, z, t\right), z, a\right), z, b\right)}} \]
  3. Simplified61.3%

    \[\leadsto \color{blue}{x + \frac{y}{\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), z, t\right), z, a\right), z, b\right)}}} \]
  4. Taylor expanded in z around inf 60.6%

    \[\leadsto x + \frac{y}{\color{blue}{0.31942702700572795}} \]
  5. Final simplification60.6%

    \[\leadsto x + \frac{y}{0.31942702700572795} \]

Alternative 18: 45.2% accurate, 37.0× speedup?

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

\\
x
\end{array}
Derivation
  1. Initial program 59.5%

    \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
  2. Taylor expanded in z around 0 56.4%

    \[\leadsto x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\color{blue}{11.9400905721 \cdot z} + 0.607771387771} \]
  3. Step-by-step derivation
    1. *-commutative56.4%

      \[\leadsto x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\color{blue}{z \cdot 11.9400905721} + 0.607771387771} \]
  4. Simplified56.4%

    \[\leadsto x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\color{blue}{z \cdot 11.9400905721} + 0.607771387771} \]
  5. Taylor expanded in z around 0 61.4%

    \[\leadsto x + \frac{\color{blue}{y \cdot b + a \cdot \left(y \cdot z\right)}}{z \cdot 11.9400905721 + 0.607771387771} \]
  6. Step-by-step derivation
    1. +-commutative61.4%

      \[\leadsto x + \frac{\color{blue}{a \cdot \left(y \cdot z\right) + y \cdot b}}{z \cdot 11.9400905721 + 0.607771387771} \]
    2. associate-*r*60.5%

      \[\leadsto x + \frac{\color{blue}{\left(a \cdot y\right) \cdot z} + y \cdot b}{z \cdot 11.9400905721 + 0.607771387771} \]
    3. *-commutative60.5%

      \[\leadsto x + \frac{\color{blue}{\left(y \cdot a\right)} \cdot z + y \cdot b}{z \cdot 11.9400905721 + 0.607771387771} \]
    4. associate-*r*62.4%

      \[\leadsto x + \frac{\color{blue}{y \cdot \left(a \cdot z\right)} + y \cdot b}{z \cdot 11.9400905721 + 0.607771387771} \]
    5. distribute-lft-out62.8%

      \[\leadsto x + \frac{\color{blue}{y \cdot \left(a \cdot z + b\right)}}{z \cdot 11.9400905721 + 0.607771387771} \]
    6. *-commutative62.8%

      \[\leadsto x + \frac{y \cdot \left(\color{blue}{z \cdot a} + b\right)}{z \cdot 11.9400905721 + 0.607771387771} \]
  7. Simplified62.8%

    \[\leadsto x + \frac{\color{blue}{y \cdot \left(z \cdot a + b\right)}}{z \cdot 11.9400905721 + 0.607771387771} \]
  8. Taylor expanded in z around inf 39.0%

    \[\leadsto x + \color{blue}{0.08375145849702896 \cdot \left(a \cdot y\right)} \]
  9. Step-by-step derivation
    1. *-commutative39.0%

      \[\leadsto x + 0.08375145849702896 \cdot \color{blue}{\left(y \cdot a\right)} \]
  10. Simplified39.0%

    \[\leadsto x + \color{blue}{0.08375145849702896 \cdot \left(y \cdot a\right)} \]
  11. Taylor expanded in x around inf 42.2%

    \[\leadsto \color{blue}{x} \]
  12. Final simplification42.2%

    \[\leadsto x \]

Developer target: 98.5% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := x + \left(\left(3.13060547623 - \frac{36.527041698806414}{z}\right) + \frac{t}{z \cdot z}\right) \cdot \frac{y}{1}\\ \mathbf{if}\;z < -6.499344996252632 \cdot 10^{+53}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;z < 7.066965436914287 \cdot 10^{+59}:\\ \;\;\;\;x + \frac{y}{\frac{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}}\\ \mathbf{else}:\\ \;\;\;\;t_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1
         (+
          x
          (*
           (+ (- 3.13060547623 (/ 36.527041698806414 z)) (/ t (* z z)))
           (/ y 1.0)))))
   (if (< z -6.499344996252632e+53)
     t_1
     (if (< z 7.066965436914287e+59)
       (+
        x
        (/
         y
         (/
          (+
           (*
            (+ (* (+ (* (+ z 15.234687407) z) 31.4690115749) z) 11.9400905721)
            z)
           0.607771387771)
          (+
           (* (+ (* (+ (* (+ (* z 3.13060547623) 11.1667541262) z) t) z) a) z)
           b))))
       t_1))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = x + (((3.13060547623 - (36.527041698806414 / z)) + (t / (z * z))) * (y / 1.0));
	double tmp;
	if (z < -6.499344996252632e+53) {
		tmp = t_1;
	} else if (z < 7.066965436914287e+59) {
		tmp = x + (y / ((((((((z + 15.234687407) * z) + 31.4690115749) * z) + 11.9400905721) * z) + 0.607771387771) / ((((((((z * 3.13060547623) + 11.1667541262) * z) + t) * z) + a) * z) + b)));
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    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) :: t_1
    real(8) :: tmp
    t_1 = x + (((3.13060547623d0 - (36.527041698806414d0 / z)) + (t / (z * z))) * (y / 1.0d0))
    if (z < (-6.499344996252632d+53)) then
        tmp = t_1
    else if (z < 7.066965436914287d+59) then
        tmp = x + (y / ((((((((z + 15.234687407d0) * z) + 31.4690115749d0) * z) + 11.9400905721d0) * z) + 0.607771387771d0) / ((((((((z * 3.13060547623d0) + 11.1667541262d0) * z) + t) * z) + a) * z) + b)))
    else
        tmp = t_1
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = x + (((3.13060547623 - (36.527041698806414 / z)) + (t / (z * z))) * (y / 1.0));
	double tmp;
	if (z < -6.499344996252632e+53) {
		tmp = t_1;
	} else if (z < 7.066965436914287e+59) {
		tmp = x + (y / ((((((((z + 15.234687407) * z) + 31.4690115749) * z) + 11.9400905721) * z) + 0.607771387771) / ((((((((z * 3.13060547623) + 11.1667541262) * z) + t) * z) + a) * z) + b)));
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = x + (((3.13060547623 - (36.527041698806414 / z)) + (t / (z * z))) * (y / 1.0))
	tmp = 0
	if z < -6.499344996252632e+53:
		tmp = t_1
	elif z < 7.066965436914287e+59:
		tmp = x + (y / ((((((((z + 15.234687407) * z) + 31.4690115749) * z) + 11.9400905721) * z) + 0.607771387771) / ((((((((z * 3.13060547623) + 11.1667541262) * z) + t) * z) + a) * z) + b)))
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(x + Float64(Float64(Float64(3.13060547623 - Float64(36.527041698806414 / z)) + Float64(t / Float64(z * z))) * Float64(y / 1.0)))
	tmp = 0.0
	if (z < -6.499344996252632e+53)
		tmp = t_1;
	elseif (z < 7.066965436914287e+59)
		tmp = Float64(x + Float64(y / Float64(Float64(Float64(Float64(Float64(Float64(Float64(Float64(z + 15.234687407) * z) + 31.4690115749) * z) + 11.9400905721) * z) + 0.607771387771) / Float64(Float64(Float64(Float64(Float64(Float64(Float64(Float64(z * 3.13060547623) + 11.1667541262) * z) + t) * z) + a) * z) + b))));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = x + (((3.13060547623 - (36.527041698806414 / z)) + (t / (z * z))) * (y / 1.0));
	tmp = 0.0;
	if (z < -6.499344996252632e+53)
		tmp = t_1;
	elseif (z < 7.066965436914287e+59)
		tmp = x + (y / ((((((((z + 15.234687407) * z) + 31.4690115749) * z) + 11.9400905721) * z) + 0.607771387771) / ((((((((z * 3.13060547623) + 11.1667541262) * z) + t) * z) + a) * z) + b)));
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(x + N[(N[(N[(3.13060547623 - N[(36.527041698806414 / z), $MachinePrecision]), $MachinePrecision] + N[(t / N[(z * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * N[(y / 1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[Less[z, -6.499344996252632e+53], t$95$1, If[Less[z, 7.066965436914287e+59], N[(x + N[(y / N[(N[(N[(N[(N[(N[(N[(N[(z + 15.234687407), $MachinePrecision] * z), $MachinePrecision] + 31.4690115749), $MachinePrecision] * z), $MachinePrecision] + 11.9400905721), $MachinePrecision] * z), $MachinePrecision] + 0.607771387771), $MachinePrecision] / N[(N[(N[(N[(N[(N[(N[(N[(z * 3.13060547623), $MachinePrecision] + 11.1667541262), $MachinePrecision] * z), $MachinePrecision] + t), $MachinePrecision] * z), $MachinePrecision] + a), $MachinePrecision] * z), $MachinePrecision] + b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := x + \left(\left(3.13060547623 - \frac{36.527041698806414}{z}\right) + \frac{t}{z \cdot z}\right) \cdot \frac{y}{1}\\
\mathbf{if}\;z < -6.499344996252632 \cdot 10^{+53}:\\
\;\;\;\;t_1\\

\mathbf{elif}\;z < 7.066965436914287 \cdot 10^{+59}:\\
\;\;\;\;x + \frac{y}{\frac{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771}{\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b}}\\

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


\end{array}
\end{array}

Reproduce

?
herbie shell --seed 2023196 
(FPCore (x y z t a b)
  :name "Numeric.SpecFunctions:logGamma from math-functions-0.1.5.2, D"
  :precision binary64

  :herbie-target
  (if (< z -6.499344996252632e+53) (+ x (* (+ (- 3.13060547623 (/ 36.527041698806414 z)) (/ t (* z z))) (/ y 1.0))) (if (< z 7.066965436914287e+59) (+ x (/ y (/ (+ (* (+ (* (+ (* (+ z 15.234687407) z) 31.4690115749) z) 11.9400905721) z) 0.607771387771) (+ (* (+ (* (+ (* (+ (* z 3.13060547623) 11.1667541262) z) t) z) a) z) b)))) (+ x (* (+ (- 3.13060547623 (/ 36.527041698806414 z)) (/ t (* z z))) (/ y 1.0)))))

  (+ x (/ (* y (+ (* (+ (* (+ (* (+ (* z 3.13060547623) 11.1667541262) z) t) z) a) z) b)) (+ (* (+ (* (+ (* (+ z 15.234687407) z) 31.4690115749) z) 11.9400905721) z) 0.607771387771))))