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

Percentage Accurate: 58.4% → 97.3%
Time: 17.4s
Alternatives: 14
Speedup: 2.5×

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 14 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: 58.4% 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: 97.3% accurate, 0.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := 0.607771387771 + z \cdot \left(11.9400905721 + z \cdot \left(31.4690115749 + z \cdot \left(z + 15.234687407\right)\right)\right)\\ t_2 := b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(z \cdot 3.13060547623 + 11.1667541262\right)\right)\right)\\ \mathbf{if}\;\frac{y \cdot t\_2}{t\_1} \leq \infty:\\ \;\;\;\;x + t\_2 \cdot \left(y \cdot \frac{1}{t\_1}\right)\\ \mathbf{else}:\\ \;\;\;\;\left(\left(\left(x + y \cdot 3.13060547623\right) + \left(\frac{y \cdot 11.1667541262}{z} + t \cdot \frac{y}{z \cdot z}\right)\right) - \frac{y \cdot -556.47806218377}{z \cdot z}\right) - \left(\frac{y \cdot 47.69379582500642}{z} + \frac{y \cdot 98.5170599679272}{z \cdot z}\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1
         (+
          0.607771387771
          (*
           z
           (+
            11.9400905721
            (* z (+ 31.4690115749 (* z (+ z 15.234687407))))))))
        (t_2
         (+
          b
          (*
           z
           (+ a (* z (+ t (* z (+ (* z 3.13060547623) 11.1667541262)))))))))
   (if (<= (/ (* y t_2) t_1) INFINITY)
     (+ x (* t_2 (* y (/ 1.0 t_1))))
     (-
      (-
       (+
        (+ x (* y 3.13060547623))
        (+ (/ (* y 11.1667541262) z) (* t (/ y (* z z)))))
       (/ (* y -556.47806218377) (* z z)))
      (+ (/ (* y 47.69379582500642) z) (/ (* y 98.5170599679272) (* z z)))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = 0.607771387771 + (z * (11.9400905721 + (z * (31.4690115749 + (z * (z + 15.234687407))))));
	double t_2 = b + (z * (a + (z * (t + (z * ((z * 3.13060547623) + 11.1667541262))))));
	double tmp;
	if (((y * t_2) / t_1) <= ((double) INFINITY)) {
		tmp = x + (t_2 * (y * (1.0 / t_1)));
	} else {
		tmp = (((x + (y * 3.13060547623)) + (((y * 11.1667541262) / z) + (t * (y / (z * z))))) - ((y * -556.47806218377) / (z * z))) - (((y * 47.69379582500642) / z) + ((y * 98.5170599679272) / (z * z)));
	}
	return tmp;
}
public static double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = 0.607771387771 + (z * (11.9400905721 + (z * (31.4690115749 + (z * (z + 15.234687407))))));
	double t_2 = b + (z * (a + (z * (t + (z * ((z * 3.13060547623) + 11.1667541262))))));
	double tmp;
	if (((y * t_2) / t_1) <= Double.POSITIVE_INFINITY) {
		tmp = x + (t_2 * (y * (1.0 / t_1)));
	} else {
		tmp = (((x + (y * 3.13060547623)) + (((y * 11.1667541262) / z) + (t * (y / (z * z))))) - ((y * -556.47806218377) / (z * z))) - (((y * 47.69379582500642) / z) + ((y * 98.5170599679272) / (z * z)));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = 0.607771387771 + (z * (11.9400905721 + (z * (31.4690115749 + (z * (z + 15.234687407))))))
	t_2 = b + (z * (a + (z * (t + (z * ((z * 3.13060547623) + 11.1667541262))))))
	tmp = 0
	if ((y * t_2) / t_1) <= math.inf:
		tmp = x + (t_2 * (y * (1.0 / t_1)))
	else:
		tmp = (((x + (y * 3.13060547623)) + (((y * 11.1667541262) / z) + (t * (y / (z * z))))) - ((y * -556.47806218377) / (z * z))) - (((y * 47.69379582500642) / z) + ((y * 98.5170599679272) / (z * z)))
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(0.607771387771 + Float64(z * Float64(11.9400905721 + Float64(z * Float64(31.4690115749 + Float64(z * Float64(z + 15.234687407)))))))
	t_2 = Float64(b + Float64(z * Float64(a + Float64(z * Float64(t + Float64(z * Float64(Float64(z * 3.13060547623) + 11.1667541262)))))))
	tmp = 0.0
	if (Float64(Float64(y * t_2) / t_1) <= Inf)
		tmp = Float64(x + Float64(t_2 * Float64(y * Float64(1.0 / t_1))));
	else
		tmp = Float64(Float64(Float64(Float64(x + Float64(y * 3.13060547623)) + Float64(Float64(Float64(y * 11.1667541262) / z) + Float64(t * Float64(y / Float64(z * z))))) - Float64(Float64(y * -556.47806218377) / Float64(z * z))) - Float64(Float64(Float64(y * 47.69379582500642) / z) + Float64(Float64(y * 98.5170599679272) / Float64(z * z))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = 0.607771387771 + (z * (11.9400905721 + (z * (31.4690115749 + (z * (z + 15.234687407))))));
	t_2 = b + (z * (a + (z * (t + (z * ((z * 3.13060547623) + 11.1667541262))))));
	tmp = 0.0;
	if (((y * t_2) / t_1) <= Inf)
		tmp = x + (t_2 * (y * (1.0 / t_1)));
	else
		tmp = (((x + (y * 3.13060547623)) + (((y * 11.1667541262) / z) + (t * (y / (z * z))))) - ((y * -556.47806218377) / (z * z))) - (((y * 47.69379582500642) / z) + ((y * 98.5170599679272) / (z * z)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = 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]}, Block[{t$95$2 = N[(b + N[(z * N[(a + N[(z * N[(t + N[(z * N[(N[(z * 3.13060547623), $MachinePrecision] + 11.1667541262), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[N[(N[(y * t$95$2), $MachinePrecision] / t$95$1), $MachinePrecision], Infinity], N[(x + N[(t$95$2 * N[(y * N[(1.0 / t$95$1), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(N[(N[(x + N[(y * 3.13060547623), $MachinePrecision]), $MachinePrecision] + N[(N[(N[(y * 11.1667541262), $MachinePrecision] / z), $MachinePrecision] + N[(t * N[(y / N[(z * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - N[(N[(y * -556.47806218377), $MachinePrecision] / N[(z * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - N[(N[(N[(y * 47.69379582500642), $MachinePrecision] / z), $MachinePrecision] + N[(N[(y * 98.5170599679272), $MachinePrecision] / N[(z * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := 0.607771387771 + z \cdot \left(11.9400905721 + z \cdot \left(31.4690115749 + z \cdot \left(z + 15.234687407\right)\right)\right)\\
t_2 := b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(z \cdot 3.13060547623 + 11.1667541262\right)\right)\right)\\
\mathbf{if}\;\frac{y \cdot t\_2}{t\_1} \leq \infty:\\
\;\;\;\;x + t\_2 \cdot \left(y \cdot \frac{1}{t\_1}\right)\\

\mathbf{else}:\\
\;\;\;\;\left(\left(\left(x + y \cdot 3.13060547623\right) + \left(\frac{y \cdot 11.1667541262}{z} + t \cdot \frac{y}{z \cdot z}\right)\right) - \frac{y \cdot -556.47806218377}{z \cdot z}\right) - \left(\frac{y \cdot 47.69379582500642}{z} + \frac{y \cdot 98.5170599679272}{z \cdot z}\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (/.f64 (*.f64 y (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 (*.f64 z #s(literal 313060547623/100000000000 binary64)) #s(literal 55833770631/5000000000 binary64)) z) t) z) a) z) b)) (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 z #s(literal 15234687407/1000000000 binary64)) z) #s(literal 314690115749/10000000000 binary64)) z) #s(literal 119400905721/10000000000 binary64)) z) #s(literal 607771387771/1000000000000 binary64))) < +inf.0

    1. Initial program 93.2%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Add Preprocessing
    3. Step-by-step derivation
      1. div-invN/A

        \[\leadsto \mathsf{+.f64}\left(x, \left(\left(y \cdot \left(\left(\left(\left(z \cdot \frac{313060547623}{100000000000} + \frac{55833770631}{5000000000}\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)\right) \cdot \color{blue}{\frac{1}{\left(\left(\left(z + \frac{15234687407}{1000000000}\right) \cdot z + \frac{314690115749}{10000000000}\right) \cdot z + \frac{119400905721}{10000000000}\right) \cdot z + \frac{607771387771}{1000000000000}}}\right)\right) \]
      2. *-commutativeN/A

        \[\leadsto \mathsf{+.f64}\left(x, \left(\left(\left(\left(\left(\left(z \cdot \frac{313060547623}{100000000000} + \frac{55833770631}{5000000000}\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \cdot y\right) \cdot \frac{\color{blue}{1}}{\left(\left(\left(z + \frac{15234687407}{1000000000}\right) \cdot z + \frac{314690115749}{10000000000}\right) \cdot z + \frac{119400905721}{10000000000}\right) \cdot z + \frac{607771387771}{1000000000000}}\right)\right) \]
      3. associate-*l*N/A

        \[\leadsto \mathsf{+.f64}\left(x, \left(\left(\left(\left(\left(z \cdot \frac{313060547623}{100000000000} + \frac{55833770631}{5000000000}\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \cdot \color{blue}{\left(y \cdot \frac{1}{\left(\left(\left(z + \frac{15234687407}{1000000000}\right) \cdot z + \frac{314690115749}{10000000000}\right) \cdot z + \frac{119400905721}{10000000000}\right) \cdot z + \frac{607771387771}{1000000000000}}\right)}\right)\right) \]
      4. *-lowering-*.f64N/A

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{*.f64}\left(\left(\left(\left(\left(z \cdot \frac{313060547623}{100000000000} + \frac{55833770631}{5000000000}\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right), \color{blue}{\left(y \cdot \frac{1}{\left(\left(\left(z + \frac{15234687407}{1000000000}\right) \cdot z + \frac{314690115749}{10000000000}\right) \cdot z + \frac{119400905721}{10000000000}\right) \cdot z + \frac{607771387771}{1000000000000}}\right)}\right)\right) \]
    4. Applied egg-rr97.8%

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

    if +inf.0 < (/.f64 (*.f64 y (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 (*.f64 z #s(literal 313060547623/100000000000 binary64)) #s(literal 55833770631/5000000000 binary64)) z) t) z) a) z) b)) (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 z #s(literal 15234687407/1000000000 binary64)) z) #s(literal 314690115749/10000000000 binary64)) z) #s(literal 119400905721/10000000000 binary64)) z) #s(literal 607771387771/1000000000000 binary64)))

    1. Initial program 0.0%

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

      \[\leadsto \color{blue}{\left(x + \left(\frac{313060547623}{100000000000} \cdot y + \left(\frac{55833770631}{5000000000} \cdot \frac{y}{z} + \frac{t \cdot y}{{z}^{2}}\right)\right)\right) - \left(\frac{15234687407}{1000000000} \cdot \frac{\frac{55833770631}{5000000000} \cdot y - \frac{4769379582500641883561}{100000000000000000000} \cdot y}{{z}^{2}} + \left(\frac{4769379582500641883561}{100000000000000000000} \cdot \frac{y}{z} + \frac{98517059967927196814627}{1000000000000000000000} \cdot \frac{y}{{z}^{2}}\right)\right)} \]
    4. Simplified97.8%

      \[\leadsto \color{blue}{\left(\left(\left(x + y \cdot 3.13060547623\right) + \left(\frac{y \cdot 11.1667541262}{z} + t \cdot \frac{y}{z \cdot z}\right)\right) - \frac{y \cdot -556.47806218377}{z \cdot z}\right) - \left(\frac{y \cdot 47.69379582500642}{z} + \frac{y \cdot 98.5170599679272}{z \cdot z}\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification97.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(z \cdot 3.13060547623 + 11.1667541262\right)\right)\right)\right)}{0.607771387771 + z \cdot \left(11.9400905721 + z \cdot \left(31.4690115749 + z \cdot \left(z + 15.234687407\right)\right)\right)} \leq \infty:\\ \;\;\;\;x + \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(z \cdot 3.13060547623 + 11.1667541262\right)\right)\right)\right) \cdot \left(y \cdot \frac{1}{0.607771387771 + z \cdot \left(11.9400905721 + z \cdot \left(31.4690115749 + z \cdot \left(z + 15.234687407\right)\right)\right)}\right)\\ \mathbf{else}:\\ \;\;\;\;\left(\left(\left(x + y \cdot 3.13060547623\right) + \left(\frac{y \cdot 11.1667541262}{z} + t \cdot \frac{y}{z \cdot z}\right)\right) - \frac{y \cdot -556.47806218377}{z \cdot z}\right) - \left(\frac{y \cdot 47.69379582500642}{z} + \frac{y \cdot 98.5170599679272}{z \cdot z}\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 2: 96.8% accurate, 0.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := 0.607771387771 + z \cdot \left(11.9400905721 + z \cdot \left(31.4690115749 + z \cdot \left(z + 15.234687407\right)\right)\right)\\ t_2 := b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(z \cdot 3.13060547623 + 11.1667541262\right)\right)\right)\\ \mathbf{if}\;\frac{y \cdot t\_2}{t\_1} \leq \infty:\\ \;\;\;\;x + t\_2 \cdot \left(y \cdot \frac{1}{t\_1}\right)\\ \mathbf{else}:\\ \;\;\;\;x + y \cdot 3.13060547623\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1
         (+
          0.607771387771
          (*
           z
           (+
            11.9400905721
            (* z (+ 31.4690115749 (* z (+ z 15.234687407))))))))
        (t_2
         (+
          b
          (*
           z
           (+ a (* z (+ t (* z (+ (* z 3.13060547623) 11.1667541262)))))))))
   (if (<= (/ (* y t_2) t_1) INFINITY)
     (+ x (* t_2 (* y (/ 1.0 t_1))))
     (+ x (* y 3.13060547623)))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = 0.607771387771 + (z * (11.9400905721 + (z * (31.4690115749 + (z * (z + 15.234687407))))));
	double t_2 = b + (z * (a + (z * (t + (z * ((z * 3.13060547623) + 11.1667541262))))));
	double tmp;
	if (((y * t_2) / t_1) <= ((double) INFINITY)) {
		tmp = x + (t_2 * (y * (1.0 / t_1)));
	} else {
		tmp = x + (y * 3.13060547623);
	}
	return tmp;
}
public static double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = 0.607771387771 + (z * (11.9400905721 + (z * (31.4690115749 + (z * (z + 15.234687407))))));
	double t_2 = b + (z * (a + (z * (t + (z * ((z * 3.13060547623) + 11.1667541262))))));
	double tmp;
	if (((y * t_2) / t_1) <= Double.POSITIVE_INFINITY) {
		tmp = x + (t_2 * (y * (1.0 / t_1)));
	} else {
		tmp = x + (y * 3.13060547623);
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = 0.607771387771 + (z * (11.9400905721 + (z * (31.4690115749 + (z * (z + 15.234687407))))))
	t_2 = b + (z * (a + (z * (t + (z * ((z * 3.13060547623) + 11.1667541262))))))
	tmp = 0
	if ((y * t_2) / t_1) <= math.inf:
		tmp = x + (t_2 * (y * (1.0 / t_1)))
	else:
		tmp = x + (y * 3.13060547623)
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(0.607771387771 + Float64(z * Float64(11.9400905721 + Float64(z * Float64(31.4690115749 + Float64(z * Float64(z + 15.234687407)))))))
	t_2 = Float64(b + Float64(z * Float64(a + Float64(z * Float64(t + Float64(z * Float64(Float64(z * 3.13060547623) + 11.1667541262)))))))
	tmp = 0.0
	if (Float64(Float64(y * t_2) / t_1) <= Inf)
		tmp = Float64(x + Float64(t_2 * Float64(y * Float64(1.0 / t_1))));
	else
		tmp = Float64(x + Float64(y * 3.13060547623));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = 0.607771387771 + (z * (11.9400905721 + (z * (31.4690115749 + (z * (z + 15.234687407))))));
	t_2 = b + (z * (a + (z * (t + (z * ((z * 3.13060547623) + 11.1667541262))))));
	tmp = 0.0;
	if (((y * t_2) / t_1) <= Inf)
		tmp = x + (t_2 * (y * (1.0 / t_1)));
	else
		tmp = x + (y * 3.13060547623);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = 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]}, Block[{t$95$2 = N[(b + N[(z * N[(a + N[(z * N[(t + N[(z * N[(N[(z * 3.13060547623), $MachinePrecision] + 11.1667541262), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[N[(N[(y * t$95$2), $MachinePrecision] / t$95$1), $MachinePrecision], Infinity], N[(x + N[(t$95$2 * N[(y * N[(1.0 / t$95$1), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + N[(y * 3.13060547623), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := 0.607771387771 + z \cdot \left(11.9400905721 + z \cdot \left(31.4690115749 + z \cdot \left(z + 15.234687407\right)\right)\right)\\
t_2 := b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(z \cdot 3.13060547623 + 11.1667541262\right)\right)\right)\\
\mathbf{if}\;\frac{y \cdot t\_2}{t\_1} \leq \infty:\\
\;\;\;\;x + t\_2 \cdot \left(y \cdot \frac{1}{t\_1}\right)\\

\mathbf{else}:\\
\;\;\;\;x + y \cdot 3.13060547623\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (/.f64 (*.f64 y (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 (*.f64 z #s(literal 313060547623/100000000000 binary64)) #s(literal 55833770631/5000000000 binary64)) z) t) z) a) z) b)) (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 z #s(literal 15234687407/1000000000 binary64)) z) #s(literal 314690115749/10000000000 binary64)) z) #s(literal 119400905721/10000000000 binary64)) z) #s(literal 607771387771/1000000000000 binary64))) < +inf.0

    1. Initial program 93.2%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Add Preprocessing
    3. Step-by-step derivation
      1. div-invN/A

        \[\leadsto \mathsf{+.f64}\left(x, \left(\left(y \cdot \left(\left(\left(\left(z \cdot \frac{313060547623}{100000000000} + \frac{55833770631}{5000000000}\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)\right) \cdot \color{blue}{\frac{1}{\left(\left(\left(z + \frac{15234687407}{1000000000}\right) \cdot z + \frac{314690115749}{10000000000}\right) \cdot z + \frac{119400905721}{10000000000}\right) \cdot z + \frac{607771387771}{1000000000000}}}\right)\right) \]
      2. *-commutativeN/A

        \[\leadsto \mathsf{+.f64}\left(x, \left(\left(\left(\left(\left(\left(z \cdot \frac{313060547623}{100000000000} + \frac{55833770631}{5000000000}\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \cdot y\right) \cdot \frac{\color{blue}{1}}{\left(\left(\left(z + \frac{15234687407}{1000000000}\right) \cdot z + \frac{314690115749}{10000000000}\right) \cdot z + \frac{119400905721}{10000000000}\right) \cdot z + \frac{607771387771}{1000000000000}}\right)\right) \]
      3. associate-*l*N/A

        \[\leadsto \mathsf{+.f64}\left(x, \left(\left(\left(\left(\left(z \cdot \frac{313060547623}{100000000000} + \frac{55833770631}{5000000000}\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \cdot \color{blue}{\left(y \cdot \frac{1}{\left(\left(\left(z + \frac{15234687407}{1000000000}\right) \cdot z + \frac{314690115749}{10000000000}\right) \cdot z + \frac{119400905721}{10000000000}\right) \cdot z + \frac{607771387771}{1000000000000}}\right)}\right)\right) \]
      4. *-lowering-*.f64N/A

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{*.f64}\left(\left(\left(\left(\left(z \cdot \frac{313060547623}{100000000000} + \frac{55833770631}{5000000000}\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right), \color{blue}{\left(y \cdot \frac{1}{\left(\left(\left(z + \frac{15234687407}{1000000000}\right) \cdot z + \frac{314690115749}{10000000000}\right) \cdot z + \frac{119400905721}{10000000000}\right) \cdot z + \frac{607771387771}{1000000000000}}\right)}\right)\right) \]
    4. Applied egg-rr97.8%

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

    if +inf.0 < (/.f64 (*.f64 y (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 (*.f64 z #s(literal 313060547623/100000000000 binary64)) #s(literal 55833770631/5000000000 binary64)) z) t) z) a) z) b)) (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 (*.f64 (+.f64 z #s(literal 15234687407/1000000000 binary64)) z) #s(literal 314690115749/10000000000 binary64)) z) #s(literal 119400905721/10000000000 binary64)) z) #s(literal 607771387771/1000000000000 binary64)))

    1. Initial program 0.0%

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

      \[\leadsto \color{blue}{x + \frac{313060547623}{100000000000} \cdot y} \]
    4. Step-by-step derivation
      1. +-lowering-+.f64N/A

        \[\leadsto \mathsf{+.f64}\left(x, \color{blue}{\left(\frac{313060547623}{100000000000} \cdot y\right)}\right) \]
      2. *-commutativeN/A

        \[\leadsto \mathsf{+.f64}\left(x, \left(y \cdot \color{blue}{\frac{313060547623}{100000000000}}\right)\right) \]
      3. *-lowering-*.f6495.9%

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{*.f64}\left(y, \color{blue}{\frac{313060547623}{100000000000}}\right)\right) \]
    5. Simplified95.9%

      \[\leadsto \color{blue}{x + y \cdot 3.13060547623} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification97.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(z \cdot 3.13060547623 + 11.1667541262\right)\right)\right)\right)}{0.607771387771 + z \cdot \left(11.9400905721 + z \cdot \left(31.4690115749 + z \cdot \left(z + 15.234687407\right)\right)\right)} \leq \infty:\\ \;\;\;\;x + \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(z \cdot 3.13060547623 + 11.1667541262\right)\right)\right)\right) \cdot \left(y \cdot \frac{1}{0.607771387771 + z \cdot \left(11.9400905721 + z \cdot \left(31.4690115749 + z \cdot \left(z + 15.234687407\right)\right)\right)}\right)\\ \mathbf{else}:\\ \;\;\;\;x + y \cdot 3.13060547623\\ \end{array} \]
  5. Add Preprocessing

Alternative 3: 95.9% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := x + y \cdot 3.13060547623\\ \mathbf{if}\;z \leq -2.6 \cdot 10^{+50}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq 8.7 \cdot 10^{+46}:\\ \;\;\;\;\frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(z \cdot 3.13060547623 + 11.1667541262\right)\right)\right)\right)}{0.607771387771 + z \cdot \left(11.9400905721 + z \cdot \left(31.4690115749 + z \cdot \left(z + 15.234687407\right)\right)\right)} + x\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (+ x (* y 3.13060547623))))
   (if (<= z -2.6e+50)
     t_1
     (if (<= z 8.7e+46)
       (+
        (/
         (*
          y
          (+
           b
           (*
            z
            (+ a (* z (+ t (* z (+ (* z 3.13060547623) 11.1667541262))))))))
         (+
          0.607771387771
          (*
           z
           (+
            11.9400905721
            (* z (+ 31.4690115749 (* z (+ z 15.234687407))))))))
        x)
       t_1))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = x + (y * 3.13060547623);
	double tmp;
	if (z <= -2.6e+50) {
		tmp = t_1;
	} else if (z <= 8.7e+46) {
		tmp = ((y * (b + (z * (a + (z * (t + (z * ((z * 3.13060547623) + 11.1667541262)))))))) / (0.607771387771 + (z * (11.9400905721 + (z * (31.4690115749 + (z * (z + 15.234687407)))))))) + x;
	} 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 + (y * 3.13060547623d0)
    if (z <= (-2.6d+50)) then
        tmp = t_1
    else if (z <= 8.7d+46) then
        tmp = ((y * (b + (z * (a + (z * (t + (z * ((z * 3.13060547623d0) + 11.1667541262d0)))))))) / (0.607771387771d0 + (z * (11.9400905721d0 + (z * (31.4690115749d0 + (z * (z + 15.234687407d0)))))))) + x
    else
        tmp = t_1
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = x + (y * 3.13060547623);
	double tmp;
	if (z <= -2.6e+50) {
		tmp = t_1;
	} else if (z <= 8.7e+46) {
		tmp = ((y * (b + (z * (a + (z * (t + (z * ((z * 3.13060547623) + 11.1667541262)))))))) / (0.607771387771 + (z * (11.9400905721 + (z * (31.4690115749 + (z * (z + 15.234687407)))))))) + x;
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = x + (y * 3.13060547623)
	tmp = 0
	if z <= -2.6e+50:
		tmp = t_1
	elif z <= 8.7e+46:
		tmp = ((y * (b + (z * (a + (z * (t + (z * ((z * 3.13060547623) + 11.1667541262)))))))) / (0.607771387771 + (z * (11.9400905721 + (z * (31.4690115749 + (z * (z + 15.234687407)))))))) + x
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(x + Float64(y * 3.13060547623))
	tmp = 0.0
	if (z <= -2.6e+50)
		tmp = t_1;
	elseif (z <= 8.7e+46)
		tmp = Float64(Float64(Float64(y * Float64(b + Float64(z * Float64(a + Float64(z * Float64(t + Float64(z * Float64(Float64(z * 3.13060547623) + 11.1667541262)))))))) / Float64(0.607771387771 + Float64(z * Float64(11.9400905721 + Float64(z * Float64(31.4690115749 + Float64(z * Float64(z + 15.234687407)))))))) + x);
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = x + (y * 3.13060547623);
	tmp = 0.0;
	if (z <= -2.6e+50)
		tmp = t_1;
	elseif (z <= 8.7e+46)
		tmp = ((y * (b + (z * (a + (z * (t + (z * ((z * 3.13060547623) + 11.1667541262)))))))) / (0.607771387771 + (z * (11.9400905721 + (z * (31.4690115749 + (z * (z + 15.234687407)))))))) + x;
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(x + N[(y * 3.13060547623), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[z, -2.6e+50], t$95$1, If[LessEqual[z, 8.7e+46], N[(N[(N[(y * N[(b + N[(z * N[(a + N[(z * N[(t + N[(z * N[(N[(z * 3.13060547623), $MachinePrecision] + 11.1667541262), $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] + x), $MachinePrecision], t$95$1]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := x + y \cdot 3.13060547623\\
\mathbf{if}\;z \leq -2.6 \cdot 10^{+50}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;z \leq 8.7 \cdot 10^{+46}:\\
\;\;\;\;\frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(z \cdot 3.13060547623 + 11.1667541262\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)} + x\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -2.6000000000000002e50 or 8.69999999999999961e46 < z

    1. Initial program 4.1%

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

      \[\leadsto \color{blue}{x + \frac{313060547623}{100000000000} \cdot y} \]
    4. Step-by-step derivation
      1. +-lowering-+.f64N/A

        \[\leadsto \mathsf{+.f64}\left(x, \color{blue}{\left(\frac{313060547623}{100000000000} \cdot y\right)}\right) \]
      2. *-commutativeN/A

        \[\leadsto \mathsf{+.f64}\left(x, \left(y \cdot \color{blue}{\frac{313060547623}{100000000000}}\right)\right) \]
      3. *-lowering-*.f6495.5%

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{*.f64}\left(y, \color{blue}{\frac{313060547623}{100000000000}}\right)\right) \]
    5. Simplified95.5%

      \[\leadsto \color{blue}{x + y \cdot 3.13060547623} \]

    if -2.6000000000000002e50 < z < 8.69999999999999961e46

    1. Initial program 97.8%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Add Preprocessing
  3. Recombined 2 regimes into one program.
  4. Final simplification96.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -2.6 \cdot 10^{+50}:\\ \;\;\;\;x + y \cdot 3.13060547623\\ \mathbf{elif}\;z \leq 8.7 \cdot 10^{+46}:\\ \;\;\;\;\frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(z \cdot 3.13060547623 + 11.1667541262\right)\right)\right)\right)}{0.607771387771 + z \cdot \left(11.9400905721 + z \cdot \left(31.4690115749 + z \cdot \left(z + 15.234687407\right)\right)\right)} + x\\ \mathbf{else}:\\ \;\;\;\;x + y \cdot 3.13060547623\\ \end{array} \]
  5. Add Preprocessing

Alternative 4: 95.0% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := x + y \cdot 3.13060547623\\ \mathbf{if}\;z \leq -2.3 \cdot 10^{+47}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq 1.04 \cdot 10^{+46}:\\ \;\;\;\;x + \frac{y \cdot \left(b + z \cdot \left(a + z \cdot t\right)\right)}{0.607771387771 + z \cdot \left(11.9400905721 + z \cdot \left(31.4690115749 + z \cdot \left(z + 15.234687407\right)\right)\right)}\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (+ x (* y 3.13060547623))))
   (if (<= z -2.3e+47)
     t_1
     (if (<= z 1.04e+46)
       (+
        x
        (/
         (* y (+ b (* z (+ a (* z t)))))
         (+
          0.607771387771
          (*
           z
           (+
            11.9400905721
            (* z (+ 31.4690115749 (* z (+ z 15.234687407)))))))))
       t_1))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = x + (y * 3.13060547623);
	double tmp;
	if (z <= -2.3e+47) {
		tmp = t_1;
	} else if (z <= 1.04e+46) {
		tmp = x + ((y * (b + (z * (a + (z * t))))) / (0.607771387771 + (z * (11.9400905721 + (z * (31.4690115749 + (z * (z + 15.234687407))))))));
	} 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 + (y * 3.13060547623d0)
    if (z <= (-2.3d+47)) then
        tmp = t_1
    else if (z <= 1.04d+46) then
        tmp = x + ((y * (b + (z * (a + (z * t))))) / (0.607771387771d0 + (z * (11.9400905721d0 + (z * (31.4690115749d0 + (z * (z + 15.234687407d0))))))))
    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 + (y * 3.13060547623);
	double tmp;
	if (z <= -2.3e+47) {
		tmp = t_1;
	} else if (z <= 1.04e+46) {
		tmp = x + ((y * (b + (z * (a + (z * t))))) / (0.607771387771 + (z * (11.9400905721 + (z * (31.4690115749 + (z * (z + 15.234687407))))))));
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = x + (y * 3.13060547623)
	tmp = 0
	if z <= -2.3e+47:
		tmp = t_1
	elif z <= 1.04e+46:
		tmp = x + ((y * (b + (z * (a + (z * t))))) / (0.607771387771 + (z * (11.9400905721 + (z * (31.4690115749 + (z * (z + 15.234687407))))))))
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(x + Float64(y * 3.13060547623))
	tmp = 0.0
	if (z <= -2.3e+47)
		tmp = t_1;
	elseif (z <= 1.04e+46)
		tmp = Float64(x + Float64(Float64(y * Float64(b + Float64(z * Float64(a + Float64(z * t))))) / Float64(0.607771387771 + Float64(z * Float64(11.9400905721 + Float64(z * Float64(31.4690115749 + Float64(z * Float64(z + 15.234687407)))))))));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = x + (y * 3.13060547623);
	tmp = 0.0;
	if (z <= -2.3e+47)
		tmp = t_1;
	elseif (z <= 1.04e+46)
		tmp = x + ((y * (b + (z * (a + (z * t))))) / (0.607771387771 + (z * (11.9400905721 + (z * (31.4690115749 + (z * (z + 15.234687407))))))));
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(x + N[(y * 3.13060547623), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[z, -2.3e+47], t$95$1, If[LessEqual[z, 1.04e+46], N[(x + N[(N[(y * N[(b + N[(z * N[(a + N[(z * t), $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], t$95$1]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := x + y \cdot 3.13060547623\\
\mathbf{if}\;z \leq -2.3 \cdot 10^{+47}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;z \leq 1.04 \cdot 10^{+46}:\\
\;\;\;\;x + \frac{y \cdot \left(b + z \cdot \left(a + z \cdot t\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}:\\
\;\;\;\;t\_1\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -2.2999999999999999e47 or 1.04000000000000003e46 < z

    1. Initial program 4.1%

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

      \[\leadsto \color{blue}{x + \frac{313060547623}{100000000000} \cdot y} \]
    4. Step-by-step derivation
      1. +-lowering-+.f64N/A

        \[\leadsto \mathsf{+.f64}\left(x, \color{blue}{\left(\frac{313060547623}{100000000000} \cdot y\right)}\right) \]
      2. *-commutativeN/A

        \[\leadsto \mathsf{+.f64}\left(x, \left(y \cdot \color{blue}{\frac{313060547623}{100000000000}}\right)\right) \]
      3. *-lowering-*.f6495.5%

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{*.f64}\left(y, \color{blue}{\frac{313060547623}{100000000000}}\right)\right) \]
    5. Simplified95.5%

      \[\leadsto \color{blue}{x + y \cdot 3.13060547623} \]

    if -2.2999999999999999e47 < z < 1.04000000000000003e46

    1. Initial program 97.8%

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

      \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \color{blue}{\left(b + z \cdot \left(a + t \cdot z\right)\right)}\right), \mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(z, \frac{15234687407}{1000000000}\right), z\right), \frac{314690115749}{10000000000}\right), z\right), \frac{119400905721}{10000000000}\right), z\right), \frac{607771387771}{1000000000000}\right)\right)\right) \]
    4. Step-by-step derivation
      1. distribute-rgt-inN/A

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \left(b + \left(a \cdot z + \left(t \cdot z\right) \cdot z\right)\right)\right), \mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(z, \frac{15234687407}{1000000000}\right), z\right), \frac{314690115749}{10000000000}\right), z\right), \frac{119400905721}{10000000000}\right), z\right), \frac{607771387771}{1000000000000}\right)\right)\right) \]
      2. associate-*r*N/A

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \left(b + \left(a \cdot z + t \cdot \left(z \cdot z\right)\right)\right)\right), \mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(z, \frac{15234687407}{1000000000}\right), z\right), \frac{314690115749}{10000000000}\right), z\right), \frac{119400905721}{10000000000}\right), z\right), \frac{607771387771}{1000000000000}\right)\right)\right) \]
      3. unpow2N/A

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \left(b + \left(a \cdot z + t \cdot {z}^{2}\right)\right)\right), \mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(z, \frac{15234687407}{1000000000}\right), z\right), \frac{314690115749}{10000000000}\right), z\right), \frac{119400905721}{10000000000}\right), z\right), \frac{607771387771}{1000000000000}\right)\right)\right) \]
      4. +-lowering-+.f64N/A

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(b, \left(a \cdot z + t \cdot {z}^{2}\right)\right)\right), \mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(z, \frac{15234687407}{1000000000}\right), z\right), \frac{314690115749}{10000000000}\right), z\right), \frac{119400905721}{10000000000}\right), \color{blue}{z}\right), \frac{607771387771}{1000000000000}\right)\right)\right) \]
      5. unpow2N/A

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(b, \left(a \cdot z + t \cdot \left(z \cdot z\right)\right)\right)\right), \mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(z, \frac{15234687407}{1000000000}\right), z\right), \frac{314690115749}{10000000000}\right), z\right), \frac{119400905721}{10000000000}\right), z\right), \frac{607771387771}{1000000000000}\right)\right)\right) \]
      6. associate-*r*N/A

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(b, \left(a \cdot z + \left(t \cdot z\right) \cdot z\right)\right)\right), \mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(z, \frac{15234687407}{1000000000}\right), z\right), \frac{314690115749}{10000000000}\right), z\right), \frac{119400905721}{10000000000}\right), z\right), \frac{607771387771}{1000000000000}\right)\right)\right) \]
      7. distribute-rgt-inN/A

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(b, \left(z \cdot \left(a + t \cdot z\right)\right)\right)\right), \mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(z, \frac{15234687407}{1000000000}\right), z\right), \frac{314690115749}{10000000000}\right), z\right), \frac{119400905721}{10000000000}\right), z\right), \frac{607771387771}{1000000000000}\right)\right)\right) \]
      8. *-lowering-*.f64N/A

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(b, \mathsf{*.f64}\left(z, \left(a + t \cdot z\right)\right)\right)\right), \mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(z, \frac{15234687407}{1000000000}\right), z\right), \frac{314690115749}{10000000000}\right), z\right), \frac{119400905721}{10000000000}\right), z\right), \frac{607771387771}{1000000000000}\right)\right)\right) \]
      9. +-lowering-+.f64N/A

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(b, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(a, \left(t \cdot z\right)\right)\right)\right)\right), \mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(z, \frac{15234687407}{1000000000}\right), z\right), \frac{314690115749}{10000000000}\right), z\right), \frac{119400905721}{10000000000}\right), z\right), \frac{607771387771}{1000000000000}\right)\right)\right) \]
      10. *-commutativeN/A

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(b, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(a, \left(z \cdot t\right)\right)\right)\right)\right), \mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(z, \frac{15234687407}{1000000000}\right), z\right), \frac{314690115749}{10000000000}\right), z\right), \frac{119400905721}{10000000000}\right), z\right), \frac{607771387771}{1000000000000}\right)\right)\right) \]
      11. *-lowering-*.f6497.4%

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(b, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(a, \mathsf{*.f64}\left(z, t\right)\right)\right)\right)\right), \mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(z, \frac{15234687407}{1000000000}\right), z\right), \frac{314690115749}{10000000000}\right), z\right), \frac{119400905721}{10000000000}\right), z\right), \frac{607771387771}{1000000000000}\right)\right)\right) \]
    5. Simplified97.4%

      \[\leadsto x + \frac{y \cdot \color{blue}{\left(b + z \cdot \left(a + z \cdot t\right)\right)}}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification96.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -2.3 \cdot 10^{+47}:\\ \;\;\;\;x + y \cdot 3.13060547623\\ \mathbf{elif}\;z \leq 1.04 \cdot 10^{+46}:\\ \;\;\;\;x + \frac{y \cdot \left(b + z \cdot \left(a + z \cdot t\right)\right)}{0.607771387771 + z \cdot \left(11.9400905721 + z \cdot \left(31.4690115749 + z \cdot \left(z + 15.234687407\right)\right)\right)}\\ \mathbf{else}:\\ \;\;\;\;x + y \cdot 3.13060547623\\ \end{array} \]
  5. Add Preprocessing

Alternative 5: 93.0% accurate, 1.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := x + y \cdot 3.13060547623\\ \mathbf{if}\;z \leq -1 \cdot 10^{+19}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq 6.4 \cdot 10^{+42}:\\ \;\;\;\;x + \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(z \cdot 3.13060547623 + 11.1667541262\right)\right)\right)\right) \cdot \left(y \cdot 1.6453555072203998\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (+ x (* y 3.13060547623))))
   (if (<= z -1e+19)
     t_1
     (if (<= z 6.4e+42)
       (+
        x
        (*
         (+
          b
          (* z (+ a (* z (+ t (* z (+ (* z 3.13060547623) 11.1667541262)))))))
         (* y 1.6453555072203998)))
       t_1))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = x + (y * 3.13060547623);
	double tmp;
	if (z <= -1e+19) {
		tmp = t_1;
	} else if (z <= 6.4e+42) {
		tmp = x + ((b + (z * (a + (z * (t + (z * ((z * 3.13060547623) + 11.1667541262))))))) * (y * 1.6453555072203998));
	} 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 + (y * 3.13060547623d0)
    if (z <= (-1d+19)) then
        tmp = t_1
    else if (z <= 6.4d+42) then
        tmp = x + ((b + (z * (a + (z * (t + (z * ((z * 3.13060547623d0) + 11.1667541262d0))))))) * (y * 1.6453555072203998d0))
    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 + (y * 3.13060547623);
	double tmp;
	if (z <= -1e+19) {
		tmp = t_1;
	} else if (z <= 6.4e+42) {
		tmp = x + ((b + (z * (a + (z * (t + (z * ((z * 3.13060547623) + 11.1667541262))))))) * (y * 1.6453555072203998));
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = x + (y * 3.13060547623)
	tmp = 0
	if z <= -1e+19:
		tmp = t_1
	elif z <= 6.4e+42:
		tmp = x + ((b + (z * (a + (z * (t + (z * ((z * 3.13060547623) + 11.1667541262))))))) * (y * 1.6453555072203998))
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(x + Float64(y * 3.13060547623))
	tmp = 0.0
	if (z <= -1e+19)
		tmp = t_1;
	elseif (z <= 6.4e+42)
		tmp = Float64(x + Float64(Float64(b + Float64(z * Float64(a + Float64(z * Float64(t + Float64(z * Float64(Float64(z * 3.13060547623) + 11.1667541262))))))) * Float64(y * 1.6453555072203998)));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = x + (y * 3.13060547623);
	tmp = 0.0;
	if (z <= -1e+19)
		tmp = t_1;
	elseif (z <= 6.4e+42)
		tmp = x + ((b + (z * (a + (z * (t + (z * ((z * 3.13060547623) + 11.1667541262))))))) * (y * 1.6453555072203998));
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(x + N[(y * 3.13060547623), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[z, -1e+19], t$95$1, If[LessEqual[z, 6.4e+42], N[(x + N[(N[(b + N[(z * N[(a + N[(z * N[(t + N[(z * N[(N[(z * 3.13060547623), $MachinePrecision] + 11.1667541262), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * N[(y * 1.6453555072203998), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := x + y \cdot 3.13060547623\\
\mathbf{if}\;z \leq -1 \cdot 10^{+19}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;z \leq 6.4 \cdot 10^{+42}:\\
\;\;\;\;x + \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(z \cdot 3.13060547623 + 11.1667541262\right)\right)\right)\right) \cdot \left(y \cdot 1.6453555072203998\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -1e19 or 6.40000000000000004e42 < z

    1. Initial program 6.7%

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

      \[\leadsto \color{blue}{x + \frac{313060547623}{100000000000} \cdot y} \]
    4. Step-by-step derivation
      1. +-lowering-+.f64N/A

        \[\leadsto \mathsf{+.f64}\left(x, \color{blue}{\left(\frac{313060547623}{100000000000} \cdot y\right)}\right) \]
      2. *-commutativeN/A

        \[\leadsto \mathsf{+.f64}\left(x, \left(y \cdot \color{blue}{\frac{313060547623}{100000000000}}\right)\right) \]
      3. *-lowering-*.f6495.6%

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{*.f64}\left(y, \color{blue}{\frac{313060547623}{100000000000}}\right)\right) \]
    5. Simplified95.6%

      \[\leadsto \color{blue}{x + y \cdot 3.13060547623} \]

    if -1e19 < z < 6.40000000000000004e42

    1. Initial program 97.8%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Add Preprocessing
    3. Step-by-step derivation
      1. div-invN/A

        \[\leadsto \mathsf{+.f64}\left(x, \left(\left(y \cdot \left(\left(\left(\left(z \cdot \frac{313060547623}{100000000000} + \frac{55833770631}{5000000000}\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)\right) \cdot \color{blue}{\frac{1}{\left(\left(\left(z + \frac{15234687407}{1000000000}\right) \cdot z + \frac{314690115749}{10000000000}\right) \cdot z + \frac{119400905721}{10000000000}\right) \cdot z + \frac{607771387771}{1000000000000}}}\right)\right) \]
      2. *-commutativeN/A

        \[\leadsto \mathsf{+.f64}\left(x, \left(\left(\left(\left(\left(\left(z \cdot \frac{313060547623}{100000000000} + \frac{55833770631}{5000000000}\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \cdot y\right) \cdot \frac{\color{blue}{1}}{\left(\left(\left(z + \frac{15234687407}{1000000000}\right) \cdot z + \frac{314690115749}{10000000000}\right) \cdot z + \frac{119400905721}{10000000000}\right) \cdot z + \frac{607771387771}{1000000000000}}\right)\right) \]
      3. associate-*l*N/A

        \[\leadsto \mathsf{+.f64}\left(x, \left(\left(\left(\left(\left(z \cdot \frac{313060547623}{100000000000} + \frac{55833770631}{5000000000}\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right) \cdot \color{blue}{\left(y \cdot \frac{1}{\left(\left(\left(z + \frac{15234687407}{1000000000}\right) \cdot z + \frac{314690115749}{10000000000}\right) \cdot z + \frac{119400905721}{10000000000}\right) \cdot z + \frac{607771387771}{1000000000000}}\right)}\right)\right) \]
      4. *-lowering-*.f64N/A

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{*.f64}\left(\left(\left(\left(\left(z \cdot \frac{313060547623}{100000000000} + \frac{55833770631}{5000000000}\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right), \color{blue}{\left(y \cdot \frac{1}{\left(\left(\left(z + \frac{15234687407}{1000000000}\right) \cdot z + \frac{314690115749}{10000000000}\right) \cdot z + \frac{119400905721}{10000000000}\right) \cdot z + \frac{607771387771}{1000000000000}}\right)}\right)\right) \]
    4. Applied egg-rr99.0%

      \[\leadsto x + \color{blue}{\left(z \cdot \left(z \cdot \left(z \cdot \left(z \cdot 3.13060547623 + 11.1667541262\right) + t\right) + a\right) + b\right) \cdot \left(y \cdot \frac{1}{z \cdot \left(z \cdot \left(z \cdot \left(z + 15.234687407\right) + 31.4690115749\right) + 11.9400905721\right) + 0.607771387771}\right)} \]
    5. Taylor expanded in z around 0

      \[\leadsto \mathsf{+.f64}\left(x, \mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\mathsf{*.f64}\left(z, \frac{313060547623}{100000000000}\right), \frac{55833770631}{5000000000}\right)\right), t\right)\right), a\right)\right), b\right), \color{blue}{\left(\frac{1000000000000}{607771387771} \cdot y\right)}\right)\right) \]
    6. Step-by-step derivation
      1. *-commutativeN/A

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\mathsf{*.f64}\left(z, \frac{313060547623}{100000000000}\right), \frac{55833770631}{5000000000}\right)\right), t\right)\right), a\right)\right), b\right), \left(y \cdot \color{blue}{\frac{1000000000000}{607771387771}}\right)\right)\right) \]
      2. *-lowering-*.f6493.5%

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\mathsf{*.f64}\left(z, \frac{313060547623}{100000000000}\right), \frac{55833770631}{5000000000}\right)\right), t\right)\right), a\right)\right), b\right), \mathsf{*.f64}\left(y, \color{blue}{\frac{1000000000000}{607771387771}}\right)\right)\right) \]
    7. Simplified93.5%

      \[\leadsto x + \left(z \cdot \left(z \cdot \left(z \cdot \left(z \cdot 3.13060547623 + 11.1667541262\right) + t\right) + a\right) + b\right) \cdot \color{blue}{\left(y \cdot 1.6453555072203998\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification94.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -1 \cdot 10^{+19}:\\ \;\;\;\;x + y \cdot 3.13060547623\\ \mathbf{elif}\;z \leq 6.4 \cdot 10^{+42}:\\ \;\;\;\;x + \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(z \cdot 3.13060547623 + 11.1667541262\right)\right)\right)\right) \cdot \left(y \cdot 1.6453555072203998\right)\\ \mathbf{else}:\\ \;\;\;\;x + y \cdot 3.13060547623\\ \end{array} \]
  5. Add Preprocessing

Alternative 6: 92.9% accurate, 1.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -290:\\ \;\;\;\;y \cdot 3.13060547623 + \left(x - \frac{y \cdot 36.52704169880642}{z}\right)\\ \mathbf{elif}\;z \leq 6.4 \cdot 10^{+42}:\\ \;\;\;\;x + \frac{y \cdot \left(b + z \cdot \left(a + z \cdot t\right)\right)}{0.607771387771 + z \cdot 11.9400905721}\\ \mathbf{else}:\\ \;\;\;\;x + y \cdot 3.13060547623\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= z -290.0)
   (+ (* y 3.13060547623) (- x (/ (* y 36.52704169880642) z)))
   (if (<= z 6.4e+42)
     (+
      x
      (/
       (* y (+ b (* z (+ a (* z t)))))
       (+ 0.607771387771 (* z 11.9400905721))))
     (+ x (* y 3.13060547623)))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (z <= -290.0) {
		tmp = (y * 3.13060547623) + (x - ((y * 36.52704169880642) / z));
	} else if (z <= 6.4e+42) {
		tmp = x + ((y * (b + (z * (a + (z * t))))) / (0.607771387771 + (z * 11.9400905721)));
	} else {
		tmp = x + (y * 3.13060547623);
	}
	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 <= (-290.0d0)) then
        tmp = (y * 3.13060547623d0) + (x - ((y * 36.52704169880642d0) / z))
    else if (z <= 6.4d+42) then
        tmp = x + ((y * (b + (z * (a + (z * t))))) / (0.607771387771d0 + (z * 11.9400905721d0)))
    else
        tmp = x + (y * 3.13060547623d0)
    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 <= -290.0) {
		tmp = (y * 3.13060547623) + (x - ((y * 36.52704169880642) / z));
	} else if (z <= 6.4e+42) {
		tmp = x + ((y * (b + (z * (a + (z * t))))) / (0.607771387771 + (z * 11.9400905721)));
	} else {
		tmp = x + (y * 3.13060547623);
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if z <= -290.0:
		tmp = (y * 3.13060547623) + (x - ((y * 36.52704169880642) / z))
	elif z <= 6.4e+42:
		tmp = x + ((y * (b + (z * (a + (z * t))))) / (0.607771387771 + (z * 11.9400905721)))
	else:
		tmp = x + (y * 3.13060547623)
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (z <= -290.0)
		tmp = Float64(Float64(y * 3.13060547623) + Float64(x - Float64(Float64(y * 36.52704169880642) / z)));
	elseif (z <= 6.4e+42)
		tmp = Float64(x + Float64(Float64(y * Float64(b + Float64(z * Float64(a + Float64(z * t))))) / Float64(0.607771387771 + Float64(z * 11.9400905721))));
	else
		tmp = Float64(x + Float64(y * 3.13060547623));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (z <= -290.0)
		tmp = (y * 3.13060547623) + (x - ((y * 36.52704169880642) / z));
	elseif (z <= 6.4e+42)
		tmp = x + ((y * (b + (z * (a + (z * t))))) / (0.607771387771 + (z * 11.9400905721)));
	else
		tmp = x + (y * 3.13060547623);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[z, -290.0], N[(N[(y * 3.13060547623), $MachinePrecision] + N[(x - N[(N[(y * 36.52704169880642), $MachinePrecision] / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, 6.4e+42], N[(x + N[(N[(y * N[(b + N[(z * N[(a + N[(z * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(0.607771387771 + N[(z * 11.9400905721), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + N[(y * 3.13060547623), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -290:\\
\;\;\;\;y \cdot 3.13060547623 + \left(x - \frac{y \cdot 36.52704169880642}{z}\right)\\

\mathbf{elif}\;z \leq 6.4 \cdot 10^{+42}:\\
\;\;\;\;x + \frac{y \cdot \left(b + z \cdot \left(a + z \cdot t\right)\right)}{0.607771387771 + z \cdot 11.9400905721}\\

\mathbf{else}:\\
\;\;\;\;x + y \cdot 3.13060547623\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if z < -290

    1. Initial program 15.5%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Add Preprocessing
    3. Taylor expanded in z around -inf

      \[\leadsto \color{blue}{x + \left(-1 \cdot \frac{\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y}{z} + \frac{313060547623}{100000000000} \cdot y\right)} \]
    4. Step-by-step derivation
      1. associate-+r+N/A

        \[\leadsto \left(x + -1 \cdot \frac{\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y}{z}\right) + \color{blue}{\frac{313060547623}{100000000000} \cdot y} \]
      2. +-commutativeN/A

        \[\leadsto \frac{313060547623}{100000000000} \cdot y + \color{blue}{\left(x + -1 \cdot \frac{\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y}{z}\right)} \]
      3. +-lowering-+.f64N/A

        \[\leadsto \mathsf{+.f64}\left(\left(\frac{313060547623}{100000000000} \cdot y\right), \color{blue}{\left(x + -1 \cdot \frac{\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y}{z}\right)}\right) \]
      4. *-commutativeN/A

        \[\leadsto \mathsf{+.f64}\left(\left(y \cdot \frac{313060547623}{100000000000}\right), \left(\color{blue}{x} + -1 \cdot \frac{\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y}{z}\right)\right) \]
      5. *-lowering-*.f64N/A

        \[\leadsto \mathsf{+.f64}\left(\mathsf{*.f64}\left(y, \frac{313060547623}{100000000000}\right), \left(\color{blue}{x} + -1 \cdot \frac{\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y}{z}\right)\right) \]
      6. mul-1-negN/A

        \[\leadsto \mathsf{+.f64}\left(\mathsf{*.f64}\left(y, \frac{313060547623}{100000000000}\right), \left(x + \left(\mathsf{neg}\left(\frac{\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y}{z}\right)\right)\right)\right) \]
      7. unsub-negN/A

        \[\leadsto \mathsf{+.f64}\left(\mathsf{*.f64}\left(y, \frac{313060547623}{100000000000}\right), \left(x - \color{blue}{\frac{\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y}{z}}\right)\right) \]
      8. --lowering--.f64N/A

        \[\leadsto \mathsf{+.f64}\left(\mathsf{*.f64}\left(y, \frac{313060547623}{100000000000}\right), \mathsf{\_.f64}\left(x, \color{blue}{\left(\frac{\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y}{z}\right)}\right)\right) \]
      9. /-lowering-/.f64N/A

        \[\leadsto \mathsf{+.f64}\left(\mathsf{*.f64}\left(y, \frac{313060547623}{100000000000}\right), \mathsf{\_.f64}\left(x, \mathsf{/.f64}\left(\left(\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y\right), \color{blue}{z}\right)\right)\right) \]
      10. distribute-rgt-out--N/A

        \[\leadsto \mathsf{+.f64}\left(\mathsf{*.f64}\left(y, \frac{313060547623}{100000000000}\right), \mathsf{\_.f64}\left(x, \mathsf{/.f64}\left(\left(y \cdot \left(\frac{-55833770631}{5000000000} - \frac{-4769379582500641883561}{100000000000000000000}\right)\right), z\right)\right)\right) \]
      11. *-lowering-*.f64N/A

        \[\leadsto \mathsf{+.f64}\left(\mathsf{*.f64}\left(y, \frac{313060547623}{100000000000}\right), \mathsf{\_.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \left(\frac{-55833770631}{5000000000} - \frac{-4769379582500641883561}{100000000000000000000}\right)\right), z\right)\right)\right) \]
      12. metadata-eval89.6%

        \[\leadsto \mathsf{+.f64}\left(\mathsf{*.f64}\left(y, \frac{313060547623}{100000000000}\right), \mathsf{\_.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \frac{3652704169880641883561}{100000000000000000000}\right), z\right)\right)\right) \]
    5. Simplified89.6%

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

    if -290 < z < 6.40000000000000004e42

    1. Initial program 97.7%

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

      \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(z, \frac{313060547623}{100000000000}\right), \frac{55833770631}{5000000000}\right), z\right), t\right), z\right), a\right), z\right), b\right)\right), \mathsf{+.f64}\left(\color{blue}{\left(\frac{119400905721}{10000000000} \cdot z\right)}, \frac{607771387771}{1000000000000}\right)\right)\right) \]
    4. Step-by-step derivation
      1. *-commutativeN/A

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(z, \frac{313060547623}{100000000000}\right), \frac{55833770631}{5000000000}\right), z\right), t\right), z\right), a\right), z\right), b\right)\right), \mathsf{+.f64}\left(\left(z \cdot \frac{119400905721}{10000000000}\right), \frac{607771387771}{1000000000000}\right)\right)\right) \]
      2. *-lowering-*.f6495.7%

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(z, \frac{313060547623}{100000000000}\right), \frac{55833770631}{5000000000}\right), z\right), t\right), z\right), a\right), z\right), b\right)\right), \mathsf{+.f64}\left(\mathsf{*.f64}\left(z, \frac{119400905721}{10000000000}\right), \frac{607771387771}{1000000000000}\right)\right)\right) \]
    5. Simplified95.7%

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

      \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \color{blue}{\left(b + z \cdot \left(a + t \cdot z\right)\right)}\right), \mathsf{+.f64}\left(\mathsf{*.f64}\left(z, \frac{119400905721}{10000000000}\right), \frac{607771387771}{1000000000000}\right)\right)\right) \]
    7. Step-by-step derivation
      1. +-lowering-+.f64N/A

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(b, \left(z \cdot \left(a + t \cdot z\right)\right)\right)\right), \mathsf{+.f64}\left(\mathsf{*.f64}\left(z, \color{blue}{\frac{119400905721}{10000000000}}\right), \frac{607771387771}{1000000000000}\right)\right)\right) \]
      2. *-lowering-*.f64N/A

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(b, \mathsf{*.f64}\left(z, \left(a + t \cdot z\right)\right)\right)\right), \mathsf{+.f64}\left(\mathsf{*.f64}\left(z, \frac{119400905721}{10000000000}\right), \frac{607771387771}{1000000000000}\right)\right)\right) \]
      3. +-lowering-+.f64N/A

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(b, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(a, \left(t \cdot z\right)\right)\right)\right)\right), \mathsf{+.f64}\left(\mathsf{*.f64}\left(z, \frac{119400905721}{10000000000}\right), \frac{607771387771}{1000000000000}\right)\right)\right) \]
      4. *-commutativeN/A

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(b, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(a, \left(z \cdot t\right)\right)\right)\right)\right), \mathsf{+.f64}\left(\mathsf{*.f64}\left(z, \frac{119400905721}{10000000000}\right), \frac{607771387771}{1000000000000}\right)\right)\right) \]
      5. *-lowering-*.f6495.2%

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(b, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(a, \mathsf{*.f64}\left(z, t\right)\right)\right)\right)\right), \mathsf{+.f64}\left(\mathsf{*.f64}\left(z, \frac{119400905721}{10000000000}\right), \frac{607771387771}{1000000000000}\right)\right)\right) \]
    8. Simplified95.2%

      \[\leadsto x + \frac{y \cdot \color{blue}{\left(b + z \cdot \left(a + z \cdot t\right)\right)}}{z \cdot 11.9400905721 + 0.607771387771} \]

    if 6.40000000000000004e42 < z

    1. Initial program 6.3%

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

      \[\leadsto \color{blue}{x + \frac{313060547623}{100000000000} \cdot y} \]
    4. Step-by-step derivation
      1. +-lowering-+.f64N/A

        \[\leadsto \mathsf{+.f64}\left(x, \color{blue}{\left(\frac{313060547623}{100000000000} \cdot y\right)}\right) \]
      2. *-commutativeN/A

        \[\leadsto \mathsf{+.f64}\left(x, \left(y \cdot \color{blue}{\frac{313060547623}{100000000000}}\right)\right) \]
      3. *-lowering-*.f6496.2%

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{*.f64}\left(y, \color{blue}{\frac{313060547623}{100000000000}}\right)\right) \]
    5. Simplified96.2%

      \[\leadsto \color{blue}{x + y \cdot 3.13060547623} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification94.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -290:\\ \;\;\;\;y \cdot 3.13060547623 + \left(x - \frac{y \cdot 36.52704169880642}{z}\right)\\ \mathbf{elif}\;z \leq 6.4 \cdot 10^{+42}:\\ \;\;\;\;x + \frac{y \cdot \left(b + z \cdot \left(a + z \cdot t\right)\right)}{0.607771387771 + z \cdot 11.9400905721}\\ \mathbf{else}:\\ \;\;\;\;x + y \cdot 3.13060547623\\ \end{array} \]
  5. Add Preprocessing

Alternative 7: 82.7% accurate, 1.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := y \cdot 3.13060547623 + \left(x - \frac{y \cdot 36.52704169880642}{z}\right)\\ \mathbf{if}\;z \leq -3 \cdot 10^{-26}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq -8.1 \cdot 10^{-50}:\\ \;\;\;\;1.6453555072203998 \cdot \left(a \cdot \left(y \cdot z\right)\right)\\ \mathbf{elif}\;z \leq 4.6 \cdot 10^{-24}:\\ \;\;\;\;x + b \cdot \left(y \cdot 1.6453555072203998\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (+ (* y 3.13060547623) (- x (/ (* y 36.52704169880642) z)))))
   (if (<= z -3e-26)
     t_1
     (if (<= z -8.1e-50)
       (* 1.6453555072203998 (* a (* y z)))
       (if (<= z 4.6e-24) (+ x (* b (* y 1.6453555072203998))) t_1)))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = (y * 3.13060547623) + (x - ((y * 36.52704169880642) / z));
	double tmp;
	if (z <= -3e-26) {
		tmp = t_1;
	} else if (z <= -8.1e-50) {
		tmp = 1.6453555072203998 * (a * (y * z));
	} else if (z <= 4.6e-24) {
		tmp = x + (b * (y * 1.6453555072203998));
	} 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 = (y * 3.13060547623d0) + (x - ((y * 36.52704169880642d0) / z))
    if (z <= (-3d-26)) then
        tmp = t_1
    else if (z <= (-8.1d-50)) then
        tmp = 1.6453555072203998d0 * (a * (y * z))
    else if (z <= 4.6d-24) then
        tmp = x + (b * (y * 1.6453555072203998d0))
    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 = (y * 3.13060547623) + (x - ((y * 36.52704169880642) / z));
	double tmp;
	if (z <= -3e-26) {
		tmp = t_1;
	} else if (z <= -8.1e-50) {
		tmp = 1.6453555072203998 * (a * (y * z));
	} else if (z <= 4.6e-24) {
		tmp = x + (b * (y * 1.6453555072203998));
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = (y * 3.13060547623) + (x - ((y * 36.52704169880642) / z))
	tmp = 0
	if z <= -3e-26:
		tmp = t_1
	elif z <= -8.1e-50:
		tmp = 1.6453555072203998 * (a * (y * z))
	elif z <= 4.6e-24:
		tmp = x + (b * (y * 1.6453555072203998))
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(Float64(y * 3.13060547623) + Float64(x - Float64(Float64(y * 36.52704169880642) / z)))
	tmp = 0.0
	if (z <= -3e-26)
		tmp = t_1;
	elseif (z <= -8.1e-50)
		tmp = Float64(1.6453555072203998 * Float64(a * Float64(y * z)));
	elseif (z <= 4.6e-24)
		tmp = Float64(x + Float64(b * Float64(y * 1.6453555072203998)));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = (y * 3.13060547623) + (x - ((y * 36.52704169880642) / z));
	tmp = 0.0;
	if (z <= -3e-26)
		tmp = t_1;
	elseif (z <= -8.1e-50)
		tmp = 1.6453555072203998 * (a * (y * z));
	elseif (z <= 4.6e-24)
		tmp = x + (b * (y * 1.6453555072203998));
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(N[(y * 3.13060547623), $MachinePrecision] + N[(x - N[(N[(y * 36.52704169880642), $MachinePrecision] / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[z, -3e-26], t$95$1, If[LessEqual[z, -8.1e-50], N[(1.6453555072203998 * N[(a * N[(y * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, 4.6e-24], N[(x + N[(b * N[(y * 1.6453555072203998), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := y \cdot 3.13060547623 + \left(x - \frac{y \cdot 36.52704169880642}{z}\right)\\
\mathbf{if}\;z \leq -3 \cdot 10^{-26}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;z \leq -8.1 \cdot 10^{-50}:\\
\;\;\;\;1.6453555072203998 \cdot \left(a \cdot \left(y \cdot z\right)\right)\\

\mathbf{elif}\;z \leq 4.6 \cdot 10^{-24}:\\
\;\;\;\;x + b \cdot \left(y \cdot 1.6453555072203998\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if z < -3.00000000000000012e-26 or 4.6000000000000002e-24 < z

    1. Initial program 23.4%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Add Preprocessing
    3. Taylor expanded in z around -inf

      \[\leadsto \color{blue}{x + \left(-1 \cdot \frac{\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y}{z} + \frac{313060547623}{100000000000} \cdot y\right)} \]
    4. Step-by-step derivation
      1. associate-+r+N/A

        \[\leadsto \left(x + -1 \cdot \frac{\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y}{z}\right) + \color{blue}{\frac{313060547623}{100000000000} \cdot y} \]
      2. +-commutativeN/A

        \[\leadsto \frac{313060547623}{100000000000} \cdot y + \color{blue}{\left(x + -1 \cdot \frac{\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y}{z}\right)} \]
      3. +-lowering-+.f64N/A

        \[\leadsto \mathsf{+.f64}\left(\left(\frac{313060547623}{100000000000} \cdot y\right), \color{blue}{\left(x + -1 \cdot \frac{\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y}{z}\right)}\right) \]
      4. *-commutativeN/A

        \[\leadsto \mathsf{+.f64}\left(\left(y \cdot \frac{313060547623}{100000000000}\right), \left(\color{blue}{x} + -1 \cdot \frac{\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y}{z}\right)\right) \]
      5. *-lowering-*.f64N/A

        \[\leadsto \mathsf{+.f64}\left(\mathsf{*.f64}\left(y, \frac{313060547623}{100000000000}\right), \left(\color{blue}{x} + -1 \cdot \frac{\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y}{z}\right)\right) \]
      6. mul-1-negN/A

        \[\leadsto \mathsf{+.f64}\left(\mathsf{*.f64}\left(y, \frac{313060547623}{100000000000}\right), \left(x + \left(\mathsf{neg}\left(\frac{\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y}{z}\right)\right)\right)\right) \]
      7. unsub-negN/A

        \[\leadsto \mathsf{+.f64}\left(\mathsf{*.f64}\left(y, \frac{313060547623}{100000000000}\right), \left(x - \color{blue}{\frac{\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y}{z}}\right)\right) \]
      8. --lowering--.f64N/A

        \[\leadsto \mathsf{+.f64}\left(\mathsf{*.f64}\left(y, \frac{313060547623}{100000000000}\right), \mathsf{\_.f64}\left(x, \color{blue}{\left(\frac{\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y}{z}\right)}\right)\right) \]
      9. /-lowering-/.f64N/A

        \[\leadsto \mathsf{+.f64}\left(\mathsf{*.f64}\left(y, \frac{313060547623}{100000000000}\right), \mathsf{\_.f64}\left(x, \mathsf{/.f64}\left(\left(\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y\right), \color{blue}{z}\right)\right)\right) \]
      10. distribute-rgt-out--N/A

        \[\leadsto \mathsf{+.f64}\left(\mathsf{*.f64}\left(y, \frac{313060547623}{100000000000}\right), \mathsf{\_.f64}\left(x, \mathsf{/.f64}\left(\left(y \cdot \left(\frac{-55833770631}{5000000000} - \frac{-4769379582500641883561}{100000000000000000000}\right)\right), z\right)\right)\right) \]
      11. *-lowering-*.f64N/A

        \[\leadsto \mathsf{+.f64}\left(\mathsf{*.f64}\left(y, \frac{313060547623}{100000000000}\right), \mathsf{\_.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \left(\frac{-55833770631}{5000000000} - \frac{-4769379582500641883561}{100000000000000000000}\right)\right), z\right)\right)\right) \]
      12. metadata-eval84.7%

        \[\leadsto \mathsf{+.f64}\left(\mathsf{*.f64}\left(y, \frac{313060547623}{100000000000}\right), \mathsf{\_.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \frac{3652704169880641883561}{100000000000000000000}\right), z\right)\right)\right) \]
    5. Simplified84.7%

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

    if -3.00000000000000012e-26 < z < -8.0999999999999999e-50

    1. Initial program 99.3%

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

      \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(z, \frac{313060547623}{100000000000}\right), \frac{55833770631}{5000000000}\right), z\right), t\right), z\right), a\right), z\right), b\right)\right), \mathsf{+.f64}\left(\color{blue}{\left(\frac{119400905721}{10000000000} \cdot z\right)}, \frac{607771387771}{1000000000000}\right)\right)\right) \]
    4. Step-by-step derivation
      1. *-commutativeN/A

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(z, \frac{313060547623}{100000000000}\right), \frac{55833770631}{5000000000}\right), z\right), t\right), z\right), a\right), z\right), b\right)\right), \mathsf{+.f64}\left(\left(z \cdot \frac{119400905721}{10000000000}\right), \frac{607771387771}{1000000000000}\right)\right)\right) \]
      2. *-lowering-*.f6499.3%

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(z, \frac{313060547623}{100000000000}\right), \frac{55833770631}{5000000000}\right), z\right), t\right), z\right), a\right), z\right), b\right)\right), \mathsf{+.f64}\left(\mathsf{*.f64}\left(z, \frac{119400905721}{10000000000}\right), \frac{607771387771}{1000000000000}\right)\right)\right) \]
    5. Simplified99.3%

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

      \[\leadsto \color{blue}{\frac{a \cdot \left(y \cdot z\right)}{\frac{607771387771}{1000000000000} + \frac{119400905721}{10000000000} \cdot z}} \]
    7. Step-by-step derivation
      1. /-lowering-/.f64N/A

        \[\leadsto \mathsf{/.f64}\left(\left(a \cdot \left(y \cdot z\right)\right), \color{blue}{\left(\frac{607771387771}{1000000000000} + \frac{119400905721}{10000000000} \cdot z\right)}\right) \]
      2. *-lowering-*.f64N/A

        \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(a, \left(y \cdot z\right)\right), \left(\color{blue}{\frac{607771387771}{1000000000000}} + \frac{119400905721}{10000000000} \cdot z\right)\right) \]
      3. *-lowering-*.f64N/A

        \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(a, \mathsf{*.f64}\left(y, z\right)\right), \left(\frac{607771387771}{1000000000000} + \frac{119400905721}{10000000000} \cdot z\right)\right) \]
      4. +-lowering-+.f64N/A

        \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(a, \mathsf{*.f64}\left(y, z\right)\right), \mathsf{+.f64}\left(\frac{607771387771}{1000000000000}, \color{blue}{\left(\frac{119400905721}{10000000000} \cdot z\right)}\right)\right) \]
      5. *-commutativeN/A

        \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(a, \mathsf{*.f64}\left(y, z\right)\right), \mathsf{+.f64}\left(\frac{607771387771}{1000000000000}, \left(z \cdot \color{blue}{\frac{119400905721}{10000000000}}\right)\right)\right) \]
      6. *-lowering-*.f6468.0%

        \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(a, \mathsf{*.f64}\left(y, z\right)\right), \mathsf{+.f64}\left(\frac{607771387771}{1000000000000}, \mathsf{*.f64}\left(z, \color{blue}{\frac{119400905721}{10000000000}}\right)\right)\right) \]
    8. Simplified68.0%

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

      \[\leadsto \color{blue}{\frac{1000000000000}{607771387771} \cdot \left(a \cdot \left(y \cdot z\right)\right)} \]
    10. Step-by-step derivation
      1. *-lowering-*.f64N/A

        \[\leadsto \mathsf{*.f64}\left(\frac{1000000000000}{607771387771}, \color{blue}{\left(a \cdot \left(y \cdot z\right)\right)}\right) \]
      2. *-lowering-*.f64N/A

        \[\leadsto \mathsf{*.f64}\left(\frac{1000000000000}{607771387771}, \mathsf{*.f64}\left(a, \color{blue}{\left(y \cdot z\right)}\right)\right) \]
      3. *-lowering-*.f6468.2%

        \[\leadsto \mathsf{*.f64}\left(\frac{1000000000000}{607771387771}, \mathsf{*.f64}\left(a, \mathsf{*.f64}\left(y, \color{blue}{z}\right)\right)\right) \]
    11. Simplified68.2%

      \[\leadsto \color{blue}{1.6453555072203998 \cdot \left(a \cdot \left(y \cdot z\right)\right)} \]

    if -8.0999999999999999e-50 < z < 4.6000000000000002e-24

    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. Add Preprocessing
    3. Taylor expanded in z around 0

      \[\leadsto \color{blue}{x + \frac{1000000000000}{607771387771} \cdot \left(b \cdot y\right)} \]
    4. Step-by-step derivation
      1. +-lowering-+.f64N/A

        \[\leadsto \mathsf{+.f64}\left(x, \color{blue}{\left(\frac{1000000000000}{607771387771} \cdot \left(b \cdot y\right)\right)}\right) \]
      2. *-commutativeN/A

        \[\leadsto \mathsf{+.f64}\left(x, \left(\left(b \cdot y\right) \cdot \color{blue}{\frac{1000000000000}{607771387771}}\right)\right) \]
      3. associate-*l*N/A

        \[\leadsto \mathsf{+.f64}\left(x, \left(b \cdot \color{blue}{\left(y \cdot \frac{1000000000000}{607771387771}\right)}\right)\right) \]
      4. *-lowering-*.f64N/A

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{*.f64}\left(b, \color{blue}{\left(y \cdot \frac{1000000000000}{607771387771}\right)}\right)\right) \]
      5. *-lowering-*.f6487.9%

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{*.f64}\left(b, \mathsf{*.f64}\left(y, \color{blue}{\frac{1000000000000}{607771387771}}\right)\right)\right) \]
    5. Simplified87.9%

      \[\leadsto \color{blue}{x + b \cdot \left(y \cdot 1.6453555072203998\right)} \]
  3. Recombined 3 regimes into one program.
  4. Add Preprocessing

Alternative 8: 90.0% accurate, 1.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -7.5 \cdot 10^{+46}:\\ \;\;\;\;x + y \cdot 3.13060547623\\ \mathbf{elif}\;z \leq 5.2 \cdot 10^{-5}:\\ \;\;\;\;x + \frac{y \cdot \left(b + z \cdot a\right)}{0.607771387771 + z \cdot 11.9400905721}\\ \mathbf{else}:\\ \;\;\;\;y \cdot 3.13060547623 + \left(x - \frac{y \cdot 36.52704169880642}{z}\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= z -7.5e+46)
   (+ x (* y 3.13060547623))
   (if (<= z 5.2e-5)
     (+ x (/ (* y (+ b (* z a))) (+ 0.607771387771 (* z 11.9400905721))))
     (+ (* y 3.13060547623) (- x (/ (* y 36.52704169880642) z))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (z <= -7.5e+46) {
		tmp = x + (y * 3.13060547623);
	} else if (z <= 5.2e-5) {
		tmp = x + ((y * (b + (z * a))) / (0.607771387771 + (z * 11.9400905721)));
	} else {
		tmp = (y * 3.13060547623) + (x - ((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 <= (-7.5d+46)) then
        tmp = x + (y * 3.13060547623d0)
    else if (z <= 5.2d-5) then
        tmp = x + ((y * (b + (z * a))) / (0.607771387771d0 + (z * 11.9400905721d0)))
    else
        tmp = (y * 3.13060547623d0) + (x - ((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 <= -7.5e+46) {
		tmp = x + (y * 3.13060547623);
	} else if (z <= 5.2e-5) {
		tmp = x + ((y * (b + (z * a))) / (0.607771387771 + (z * 11.9400905721)));
	} else {
		tmp = (y * 3.13060547623) + (x - ((y * 36.52704169880642) / z));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if z <= -7.5e+46:
		tmp = x + (y * 3.13060547623)
	elif z <= 5.2e-5:
		tmp = x + ((y * (b + (z * a))) / (0.607771387771 + (z * 11.9400905721)))
	else:
		tmp = (y * 3.13060547623) + (x - ((y * 36.52704169880642) / z))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (z <= -7.5e+46)
		tmp = Float64(x + Float64(y * 3.13060547623));
	elseif (z <= 5.2e-5)
		tmp = Float64(x + Float64(Float64(y * Float64(b + Float64(z * a))) / Float64(0.607771387771 + Float64(z * 11.9400905721))));
	else
		tmp = Float64(Float64(y * 3.13060547623) + Float64(x - 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 <= -7.5e+46)
		tmp = x + (y * 3.13060547623);
	elseif (z <= 5.2e-5)
		tmp = x + ((y * (b + (z * a))) / (0.607771387771 + (z * 11.9400905721)));
	else
		tmp = (y * 3.13060547623) + (x - ((y * 36.52704169880642) / z));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[z, -7.5e+46], N[(x + N[(y * 3.13060547623), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, 5.2e-5], N[(x + N[(N[(y * N[(b + N[(z * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(0.607771387771 + N[(z * 11.9400905721), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(y * 3.13060547623), $MachinePrecision] + N[(x - N[(N[(y * 36.52704169880642), $MachinePrecision] / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -7.5 \cdot 10^{+46}:\\
\;\;\;\;x + y \cdot 3.13060547623\\

\mathbf{elif}\;z \leq 5.2 \cdot 10^{-5}:\\
\;\;\;\;x + \frac{y \cdot \left(b + z \cdot a\right)}{0.607771387771 + z \cdot 11.9400905721}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if z < -7.5000000000000003e46

    1. Initial program 2.0%

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

      \[\leadsto \color{blue}{x + \frac{313060547623}{100000000000} \cdot y} \]
    4. Step-by-step derivation
      1. +-lowering-+.f64N/A

        \[\leadsto \mathsf{+.f64}\left(x, \color{blue}{\left(\frac{313060547623}{100000000000} \cdot y\right)}\right) \]
      2. *-commutativeN/A

        \[\leadsto \mathsf{+.f64}\left(x, \left(y \cdot \color{blue}{\frac{313060547623}{100000000000}}\right)\right) \]
      3. *-lowering-*.f6494.9%

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{*.f64}\left(y, \color{blue}{\frac{313060547623}{100000000000}}\right)\right) \]
    5. Simplified94.9%

      \[\leadsto \color{blue}{x + y \cdot 3.13060547623} \]

    if -7.5000000000000003e46 < z < 5.19999999999999968e-5

    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. Add Preprocessing
    3. Taylor expanded in z around 0

      \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \color{blue}{\left(b + a \cdot z\right)}\right), \mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(z, \frac{15234687407}{1000000000}\right), z\right), \frac{314690115749}{10000000000}\right), z\right), \frac{119400905721}{10000000000}\right), z\right), \frac{607771387771}{1000000000000}\right)\right)\right) \]
    4. Step-by-step derivation
      1. +-lowering-+.f64N/A

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(b, \left(a \cdot z\right)\right)\right), \mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(z, \frac{15234687407}{1000000000}\right), z\right), \frac{314690115749}{10000000000}\right), z\right), \frac{119400905721}{10000000000}\right), \color{blue}{z}\right), \frac{607771387771}{1000000000000}\right)\right)\right) \]
      2. *-commutativeN/A

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(b, \left(z \cdot a\right)\right)\right), \mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(z, \frac{15234687407}{1000000000}\right), z\right), \frac{314690115749}{10000000000}\right), z\right), \frac{119400905721}{10000000000}\right), z\right), \frac{607771387771}{1000000000000}\right)\right)\right) \]
      3. *-lowering-*.f6494.9%

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(b, \mathsf{*.f64}\left(z, a\right)\right)\right), \mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(z, \frac{15234687407}{1000000000}\right), z\right), \frac{314690115749}{10000000000}\right), z\right), \frac{119400905721}{10000000000}\right), z\right), \frac{607771387771}{1000000000000}\right)\right)\right) \]
    5. Simplified94.9%

      \[\leadsto x + \frac{y \cdot \color{blue}{\left(b + z \cdot a\right)}}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    6. Taylor expanded in z around 0

      \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(b, \mathsf{*.f64}\left(z, a\right)\right)\right), \mathsf{+.f64}\left(\color{blue}{\left(\frac{119400905721}{10000000000} \cdot z\right)}, \frac{607771387771}{1000000000000}\right)\right)\right) \]
    7. Step-by-step derivation
      1. *-commutativeN/A

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(b, \mathsf{*.f64}\left(z, a\right)\right)\right), \mathsf{+.f64}\left(\left(z \cdot \frac{119400905721}{10000000000}\right), \frac{607771387771}{1000000000000}\right)\right)\right) \]
      2. *-lowering-*.f6493.5%

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(b, \mathsf{*.f64}\left(z, a\right)\right)\right), \mathsf{+.f64}\left(\mathsf{*.f64}\left(z, \frac{119400905721}{10000000000}\right), \frac{607771387771}{1000000000000}\right)\right)\right) \]
    8. Simplified93.5%

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

    if 5.19999999999999968e-5 < z

    1. Initial program 19.6%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Add Preprocessing
    3. Taylor expanded in z around -inf

      \[\leadsto \color{blue}{x + \left(-1 \cdot \frac{\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y}{z} + \frac{313060547623}{100000000000} \cdot y\right)} \]
    4. Step-by-step derivation
      1. associate-+r+N/A

        \[\leadsto \left(x + -1 \cdot \frac{\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y}{z}\right) + \color{blue}{\frac{313060547623}{100000000000} \cdot y} \]
      2. +-commutativeN/A

        \[\leadsto \frac{313060547623}{100000000000} \cdot y + \color{blue}{\left(x + -1 \cdot \frac{\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y}{z}\right)} \]
      3. +-lowering-+.f64N/A

        \[\leadsto \mathsf{+.f64}\left(\left(\frac{313060547623}{100000000000} \cdot y\right), \color{blue}{\left(x + -1 \cdot \frac{\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y}{z}\right)}\right) \]
      4. *-commutativeN/A

        \[\leadsto \mathsf{+.f64}\left(\left(y \cdot \frac{313060547623}{100000000000}\right), \left(\color{blue}{x} + -1 \cdot \frac{\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y}{z}\right)\right) \]
      5. *-lowering-*.f64N/A

        \[\leadsto \mathsf{+.f64}\left(\mathsf{*.f64}\left(y, \frac{313060547623}{100000000000}\right), \left(\color{blue}{x} + -1 \cdot \frac{\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y}{z}\right)\right) \]
      6. mul-1-negN/A

        \[\leadsto \mathsf{+.f64}\left(\mathsf{*.f64}\left(y, \frac{313060547623}{100000000000}\right), \left(x + \left(\mathsf{neg}\left(\frac{\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y}{z}\right)\right)\right)\right) \]
      7. unsub-negN/A

        \[\leadsto \mathsf{+.f64}\left(\mathsf{*.f64}\left(y, \frac{313060547623}{100000000000}\right), \left(x - \color{blue}{\frac{\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y}{z}}\right)\right) \]
      8. --lowering--.f64N/A

        \[\leadsto \mathsf{+.f64}\left(\mathsf{*.f64}\left(y, \frac{313060547623}{100000000000}\right), \mathsf{\_.f64}\left(x, \color{blue}{\left(\frac{\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y}{z}\right)}\right)\right) \]
      9. /-lowering-/.f64N/A

        \[\leadsto \mathsf{+.f64}\left(\mathsf{*.f64}\left(y, \frac{313060547623}{100000000000}\right), \mathsf{\_.f64}\left(x, \mathsf{/.f64}\left(\left(\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y\right), \color{blue}{z}\right)\right)\right) \]
      10. distribute-rgt-out--N/A

        \[\leadsto \mathsf{+.f64}\left(\mathsf{*.f64}\left(y, \frac{313060547623}{100000000000}\right), \mathsf{\_.f64}\left(x, \mathsf{/.f64}\left(\left(y \cdot \left(\frac{-55833770631}{5000000000} - \frac{-4769379582500641883561}{100000000000000000000}\right)\right), z\right)\right)\right) \]
      11. *-lowering-*.f64N/A

        \[\leadsto \mathsf{+.f64}\left(\mathsf{*.f64}\left(y, \frac{313060547623}{100000000000}\right), \mathsf{\_.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \left(\frac{-55833770631}{5000000000} - \frac{-4769379582500641883561}{100000000000000000000}\right)\right), z\right)\right)\right) \]
      12. metadata-eval86.1%

        \[\leadsto \mathsf{+.f64}\left(\mathsf{*.f64}\left(y, \frac{313060547623}{100000000000}\right), \mathsf{\_.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \frac{3652704169880641883561}{100000000000000000000}\right), z\right)\right)\right) \]
    5. Simplified86.1%

      \[\leadsto \color{blue}{y \cdot 3.13060547623 + \left(x - \frac{y \cdot 36.52704169880642}{z}\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification92.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -7.5 \cdot 10^{+46}:\\ \;\;\;\;x + y \cdot 3.13060547623\\ \mathbf{elif}\;z \leq 5.2 \cdot 10^{-5}:\\ \;\;\;\;x + \frac{y \cdot \left(b + z \cdot a\right)}{0.607771387771 + z \cdot 11.9400905721}\\ \mathbf{else}:\\ \;\;\;\;y \cdot 3.13060547623 + \left(x - \frac{y \cdot 36.52704169880642}{z}\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 9: 90.5% accurate, 1.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -3100000000000:\\ \;\;\;\;x + y \cdot 3.13060547623\\ \mathbf{elif}\;z \leq 5.2 \cdot 10^{-5}:\\ \;\;\;\;x + \frac{1}{\frac{0.607771387771}{y \cdot \left(b + z \cdot a\right)}}\\ \mathbf{else}:\\ \;\;\;\;y \cdot 3.13060547623 + \left(x - \frac{y \cdot 36.52704169880642}{z}\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= z -3100000000000.0)
   (+ x (* y 3.13060547623))
   (if (<= z 5.2e-5)
     (+ x (/ 1.0 (/ 0.607771387771 (* y (+ b (* z a))))))
     (+ (* y 3.13060547623) (- x (/ (* y 36.52704169880642) z))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (z <= -3100000000000.0) {
		tmp = x + (y * 3.13060547623);
	} else if (z <= 5.2e-5) {
		tmp = x + (1.0 / (0.607771387771 / (y * (b + (z * a)))));
	} else {
		tmp = (y * 3.13060547623) + (x - ((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 <= (-3100000000000.0d0)) then
        tmp = x + (y * 3.13060547623d0)
    else if (z <= 5.2d-5) then
        tmp = x + (1.0d0 / (0.607771387771d0 / (y * (b + (z * a)))))
    else
        tmp = (y * 3.13060547623d0) + (x - ((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 <= -3100000000000.0) {
		tmp = x + (y * 3.13060547623);
	} else if (z <= 5.2e-5) {
		tmp = x + (1.0 / (0.607771387771 / (y * (b + (z * a)))));
	} else {
		tmp = (y * 3.13060547623) + (x - ((y * 36.52704169880642) / z));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if z <= -3100000000000.0:
		tmp = x + (y * 3.13060547623)
	elif z <= 5.2e-5:
		tmp = x + (1.0 / (0.607771387771 / (y * (b + (z * a)))))
	else:
		tmp = (y * 3.13060547623) + (x - ((y * 36.52704169880642) / z))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (z <= -3100000000000.0)
		tmp = Float64(x + Float64(y * 3.13060547623));
	elseif (z <= 5.2e-5)
		tmp = Float64(x + Float64(1.0 / Float64(0.607771387771 / Float64(y * Float64(b + Float64(z * a))))));
	else
		tmp = Float64(Float64(y * 3.13060547623) + Float64(x - 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 <= -3100000000000.0)
		tmp = x + (y * 3.13060547623);
	elseif (z <= 5.2e-5)
		tmp = x + (1.0 / (0.607771387771 / (y * (b + (z * a)))));
	else
		tmp = (y * 3.13060547623) + (x - ((y * 36.52704169880642) / z));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[z, -3100000000000.0], N[(x + N[(y * 3.13060547623), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, 5.2e-5], N[(x + N[(1.0 / N[(0.607771387771 / N[(y * N[(b + N[(z * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(y * 3.13060547623), $MachinePrecision] + N[(x - N[(N[(y * 36.52704169880642), $MachinePrecision] / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -3100000000000:\\
\;\;\;\;x + y \cdot 3.13060547623\\

\mathbf{elif}\;z \leq 5.2 \cdot 10^{-5}:\\
\;\;\;\;x + \frac{1}{\frac{0.607771387771}{y \cdot \left(b + z \cdot a\right)}}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if z < -3.1e12

    1. Initial program 8.5%

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

      \[\leadsto \color{blue}{x + \frac{313060547623}{100000000000} \cdot y} \]
    4. Step-by-step derivation
      1. +-lowering-+.f64N/A

        \[\leadsto \mathsf{+.f64}\left(x, \color{blue}{\left(\frac{313060547623}{100000000000} \cdot y\right)}\right) \]
      2. *-commutativeN/A

        \[\leadsto \mathsf{+.f64}\left(x, \left(y \cdot \color{blue}{\frac{313060547623}{100000000000}}\right)\right) \]
      3. *-lowering-*.f6493.6%

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{*.f64}\left(y, \color{blue}{\frac{313060547623}{100000000000}}\right)\right) \]
    5. Simplified93.6%

      \[\leadsto \color{blue}{x + y \cdot 3.13060547623} \]

    if -3.1e12 < z < 5.19999999999999968e-5

    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. Add Preprocessing
    3. Taylor expanded in z around 0

      \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \color{blue}{\left(b + a \cdot z\right)}\right), \mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(z, \frac{15234687407}{1000000000}\right), z\right), \frac{314690115749}{10000000000}\right), z\right), \frac{119400905721}{10000000000}\right), z\right), \frac{607771387771}{1000000000000}\right)\right)\right) \]
    4. Step-by-step derivation
      1. +-lowering-+.f64N/A

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(b, \left(a \cdot z\right)\right)\right), \mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(z, \frac{15234687407}{1000000000}\right), z\right), \frac{314690115749}{10000000000}\right), z\right), \frac{119400905721}{10000000000}\right), \color{blue}{z}\right), \frac{607771387771}{1000000000000}\right)\right)\right) \]
      2. *-commutativeN/A

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(b, \left(z \cdot a\right)\right)\right), \mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(z, \frac{15234687407}{1000000000}\right), z\right), \frac{314690115749}{10000000000}\right), z\right), \frac{119400905721}{10000000000}\right), z\right), \frac{607771387771}{1000000000000}\right)\right)\right) \]
      3. *-lowering-*.f6495.5%

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(b, \mathsf{*.f64}\left(z, a\right)\right)\right), \mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(z, \frac{15234687407}{1000000000}\right), z\right), \frac{314690115749}{10000000000}\right), z\right), \frac{119400905721}{10000000000}\right), z\right), \frac{607771387771}{1000000000000}\right)\right)\right) \]
    5. Simplified95.5%

      \[\leadsto x + \frac{y \cdot \color{blue}{\left(b + z \cdot a\right)}}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    6. Step-by-step derivation
      1. clear-numN/A

        \[\leadsto \mathsf{+.f64}\left(x, \left(\frac{1}{\color{blue}{\frac{\left(\left(\left(z + \frac{15234687407}{1000000000}\right) \cdot z + \frac{314690115749}{10000000000}\right) \cdot z + \frac{119400905721}{10000000000}\right) \cdot z + \frac{607771387771}{1000000000000}}{y \cdot \left(b + z \cdot a\right)}}}\right)\right) \]
      2. /-lowering-/.f64N/A

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(1, \color{blue}{\left(\frac{\left(\left(\left(z + \frac{15234687407}{1000000000}\right) \cdot z + \frac{314690115749}{10000000000}\right) \cdot z + \frac{119400905721}{10000000000}\right) \cdot z + \frac{607771387771}{1000000000000}}{y \cdot \left(b + z \cdot a\right)}\right)}\right)\right) \]
      3. *-commutativeN/A

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(1, \left(\frac{z \cdot \left(\left(\left(z + \frac{15234687407}{1000000000}\right) \cdot z + \frac{314690115749}{10000000000}\right) \cdot z + \frac{119400905721}{10000000000}\right) + \frac{607771387771}{1000000000000}}{y \cdot \left(b + z \cdot a\right)}\right)\right)\right) \]
      4. *-commutativeN/A

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(1, \left(\frac{z \cdot \left(z \cdot \left(\left(z + \frac{15234687407}{1000000000}\right) \cdot z + \frac{314690115749}{10000000000}\right) + \frac{119400905721}{10000000000}\right) + \frac{607771387771}{1000000000000}}{y \cdot \left(b + z \cdot a\right)}\right)\right)\right) \]
      5. *-commutativeN/A

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(1, \left(\frac{z \cdot \left(z \cdot \left(z \cdot \left(z + \frac{15234687407}{1000000000}\right) + \frac{314690115749}{10000000000}\right) + \frac{119400905721}{10000000000}\right) + \frac{607771387771}{1000000000000}}{y \cdot \left(b + z \cdot a\right)}\right)\right)\right) \]
      6. /-lowering-/.f64N/A

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(1, \mathsf{/.f64}\left(\left(z \cdot \left(z \cdot \left(z \cdot \left(z + \frac{15234687407}{1000000000}\right) + \frac{314690115749}{10000000000}\right) + \frac{119400905721}{10000000000}\right) + \frac{607771387771}{1000000000000}\right), \color{blue}{\left(y \cdot \left(b + z \cdot a\right)\right)}\right)\right)\right) \]
    7. Applied egg-rr95.5%

      \[\leadsto x + \color{blue}{\frac{1}{\frac{0.607771387771 + z \cdot \left(11.9400905721 + z \cdot \left(31.4690115749 + z \cdot \left(z + 15.234687407\right)\right)\right)}{y \cdot \left(b + z \cdot a\right)}}} \]
    8. Taylor expanded in z around 0

      \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(1, \mathsf{/.f64}\left(\color{blue}{\frac{607771387771}{1000000000000}}, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(b, \mathsf{*.f64}\left(z, a\right)\right)\right)\right)\right)\right) \]
    9. Step-by-step derivation
      1. Simplified93.3%

        \[\leadsto x + \frac{1}{\frac{\color{blue}{0.607771387771}}{y \cdot \left(b + z \cdot a\right)}} \]

      if 5.19999999999999968e-5 < z

      1. Initial program 19.6%

        \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
      2. Add Preprocessing
      3. Taylor expanded in z around -inf

        \[\leadsto \color{blue}{x + \left(-1 \cdot \frac{\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y}{z} + \frac{313060547623}{100000000000} \cdot y\right)} \]
      4. Step-by-step derivation
        1. associate-+r+N/A

          \[\leadsto \left(x + -1 \cdot \frac{\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y}{z}\right) + \color{blue}{\frac{313060547623}{100000000000} \cdot y} \]
        2. +-commutativeN/A

          \[\leadsto \frac{313060547623}{100000000000} \cdot y + \color{blue}{\left(x + -1 \cdot \frac{\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y}{z}\right)} \]
        3. +-lowering-+.f64N/A

          \[\leadsto \mathsf{+.f64}\left(\left(\frac{313060547623}{100000000000} \cdot y\right), \color{blue}{\left(x + -1 \cdot \frac{\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y}{z}\right)}\right) \]
        4. *-commutativeN/A

          \[\leadsto \mathsf{+.f64}\left(\left(y \cdot \frac{313060547623}{100000000000}\right), \left(\color{blue}{x} + -1 \cdot \frac{\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y}{z}\right)\right) \]
        5. *-lowering-*.f64N/A

          \[\leadsto \mathsf{+.f64}\left(\mathsf{*.f64}\left(y, \frac{313060547623}{100000000000}\right), \left(\color{blue}{x} + -1 \cdot \frac{\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y}{z}\right)\right) \]
        6. mul-1-negN/A

          \[\leadsto \mathsf{+.f64}\left(\mathsf{*.f64}\left(y, \frac{313060547623}{100000000000}\right), \left(x + \left(\mathsf{neg}\left(\frac{\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y}{z}\right)\right)\right)\right) \]
        7. unsub-negN/A

          \[\leadsto \mathsf{+.f64}\left(\mathsf{*.f64}\left(y, \frac{313060547623}{100000000000}\right), \left(x - \color{blue}{\frac{\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y}{z}}\right)\right) \]
        8. --lowering--.f64N/A

          \[\leadsto \mathsf{+.f64}\left(\mathsf{*.f64}\left(y, \frac{313060547623}{100000000000}\right), \mathsf{\_.f64}\left(x, \color{blue}{\left(\frac{\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y}{z}\right)}\right)\right) \]
        9. /-lowering-/.f64N/A

          \[\leadsto \mathsf{+.f64}\left(\mathsf{*.f64}\left(y, \frac{313060547623}{100000000000}\right), \mathsf{\_.f64}\left(x, \mathsf{/.f64}\left(\left(\frac{-55833770631}{5000000000} \cdot y - \frac{-4769379582500641883561}{100000000000000000000} \cdot y\right), \color{blue}{z}\right)\right)\right) \]
        10. distribute-rgt-out--N/A

          \[\leadsto \mathsf{+.f64}\left(\mathsf{*.f64}\left(y, \frac{313060547623}{100000000000}\right), \mathsf{\_.f64}\left(x, \mathsf{/.f64}\left(\left(y \cdot \left(\frac{-55833770631}{5000000000} - \frac{-4769379582500641883561}{100000000000000000000}\right)\right), z\right)\right)\right) \]
        11. *-lowering-*.f64N/A

          \[\leadsto \mathsf{+.f64}\left(\mathsf{*.f64}\left(y, \frac{313060547623}{100000000000}\right), \mathsf{\_.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \left(\frac{-55833770631}{5000000000} - \frac{-4769379582500641883561}{100000000000000000000}\right)\right), z\right)\right)\right) \]
        12. metadata-eval86.1%

          \[\leadsto \mathsf{+.f64}\left(\mathsf{*.f64}\left(y, \frac{313060547623}{100000000000}\right), \mathsf{\_.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \frac{3652704169880641883561}{100000000000000000000}\right), z\right)\right)\right) \]
      5. Simplified86.1%

        \[\leadsto \color{blue}{y \cdot 3.13060547623 + \left(x - \frac{y \cdot 36.52704169880642}{z}\right)} \]
    10. Recombined 3 regimes into one program.
    11. Add Preprocessing

    Alternative 10: 83.0% accurate, 1.7× speedup?

    \[\begin{array}{l} \\ \begin{array}{l} t_1 := x + y \cdot 3.13060547623\\ \mathbf{if}\;z \leq -5 \cdot 10^{-26}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq -8.1 \cdot 10^{-50}:\\ \;\;\;\;1.6453555072203998 \cdot \left(a \cdot \left(y \cdot z\right)\right)\\ \mathbf{elif}\;z \leq 3.8 \cdot 10^{-5}:\\ \;\;\;\;x + b \cdot \left(y \cdot 1.6453555072203998\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
    (FPCore (x y z t a b)
     :precision binary64
     (let* ((t_1 (+ x (* y 3.13060547623))))
       (if (<= z -5e-26)
         t_1
         (if (<= z -8.1e-50)
           (* 1.6453555072203998 (* a (* y z)))
           (if (<= z 3.8e-5) (+ x (* b (* y 1.6453555072203998))) t_1)))))
    double code(double x, double y, double z, double t, double a, double b) {
    	double t_1 = x + (y * 3.13060547623);
    	double tmp;
    	if (z <= -5e-26) {
    		tmp = t_1;
    	} else if (z <= -8.1e-50) {
    		tmp = 1.6453555072203998 * (a * (y * z));
    	} else if (z <= 3.8e-5) {
    		tmp = x + (b * (y * 1.6453555072203998));
    	} 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 + (y * 3.13060547623d0)
        if (z <= (-5d-26)) then
            tmp = t_1
        else if (z <= (-8.1d-50)) then
            tmp = 1.6453555072203998d0 * (a * (y * z))
        else if (z <= 3.8d-5) then
            tmp = x + (b * (y * 1.6453555072203998d0))
        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 + (y * 3.13060547623);
    	double tmp;
    	if (z <= -5e-26) {
    		tmp = t_1;
    	} else if (z <= -8.1e-50) {
    		tmp = 1.6453555072203998 * (a * (y * z));
    	} else if (z <= 3.8e-5) {
    		tmp = x + (b * (y * 1.6453555072203998));
    	} else {
    		tmp = t_1;
    	}
    	return tmp;
    }
    
    def code(x, y, z, t, a, b):
    	t_1 = x + (y * 3.13060547623)
    	tmp = 0
    	if z <= -5e-26:
    		tmp = t_1
    	elif z <= -8.1e-50:
    		tmp = 1.6453555072203998 * (a * (y * z))
    	elif z <= 3.8e-5:
    		tmp = x + (b * (y * 1.6453555072203998))
    	else:
    		tmp = t_1
    	return tmp
    
    function code(x, y, z, t, a, b)
    	t_1 = Float64(x + Float64(y * 3.13060547623))
    	tmp = 0.0
    	if (z <= -5e-26)
    		tmp = t_1;
    	elseif (z <= -8.1e-50)
    		tmp = Float64(1.6453555072203998 * Float64(a * Float64(y * z)));
    	elseif (z <= 3.8e-5)
    		tmp = Float64(x + Float64(b * Float64(y * 1.6453555072203998)));
    	else
    		tmp = t_1;
    	end
    	return tmp
    end
    
    function tmp_2 = code(x, y, z, t, a, b)
    	t_1 = x + (y * 3.13060547623);
    	tmp = 0.0;
    	if (z <= -5e-26)
    		tmp = t_1;
    	elseif (z <= -8.1e-50)
    		tmp = 1.6453555072203998 * (a * (y * z));
    	elseif (z <= 3.8e-5)
    		tmp = x + (b * (y * 1.6453555072203998));
    	else
    		tmp = t_1;
    	end
    	tmp_2 = tmp;
    end
    
    code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(x + N[(y * 3.13060547623), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[z, -5e-26], t$95$1, If[LessEqual[z, -8.1e-50], N[(1.6453555072203998 * N[(a * N[(y * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, 3.8e-5], N[(x + N[(b * N[(y * 1.6453555072203998), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]]
    
    \begin{array}{l}
    
    \\
    \begin{array}{l}
    t_1 := x + y \cdot 3.13060547623\\
    \mathbf{if}\;z \leq -5 \cdot 10^{-26}:\\
    \;\;\;\;t\_1\\
    
    \mathbf{elif}\;z \leq -8.1 \cdot 10^{-50}:\\
    \;\;\;\;1.6453555072203998 \cdot \left(a \cdot \left(y \cdot z\right)\right)\\
    
    \mathbf{elif}\;z \leq 3.8 \cdot 10^{-5}:\\
    \;\;\;\;x + b \cdot \left(y \cdot 1.6453555072203998\right)\\
    
    \mathbf{else}:\\
    \;\;\;\;t\_1\\
    
    
    \end{array}
    \end{array}
    
    Derivation
    1. Split input into 3 regimes
    2. if z < -5.00000000000000019e-26 or 3.8000000000000002e-5 < z

      1. Initial program 21.8%

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

        \[\leadsto \color{blue}{x + \frac{313060547623}{100000000000} \cdot y} \]
      4. Step-by-step derivation
        1. +-lowering-+.f64N/A

          \[\leadsto \mathsf{+.f64}\left(x, \color{blue}{\left(\frac{313060547623}{100000000000} \cdot y\right)}\right) \]
        2. *-commutativeN/A

          \[\leadsto \mathsf{+.f64}\left(x, \left(y \cdot \color{blue}{\frac{313060547623}{100000000000}}\right)\right) \]
        3. *-lowering-*.f6485.7%

          \[\leadsto \mathsf{+.f64}\left(x, \mathsf{*.f64}\left(y, \color{blue}{\frac{313060547623}{100000000000}}\right)\right) \]
      5. Simplified85.7%

        \[\leadsto \color{blue}{x + y \cdot 3.13060547623} \]

      if -5.00000000000000019e-26 < z < -8.0999999999999999e-50

      1. Initial program 99.3%

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

        \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(z, \frac{313060547623}{100000000000}\right), \frac{55833770631}{5000000000}\right), z\right), t\right), z\right), a\right), z\right), b\right)\right), \mathsf{+.f64}\left(\color{blue}{\left(\frac{119400905721}{10000000000} \cdot z\right)}, \frac{607771387771}{1000000000000}\right)\right)\right) \]
      4. Step-by-step derivation
        1. *-commutativeN/A

          \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(z, \frac{313060547623}{100000000000}\right), \frac{55833770631}{5000000000}\right), z\right), t\right), z\right), a\right), z\right), b\right)\right), \mathsf{+.f64}\left(\left(z \cdot \frac{119400905721}{10000000000}\right), \frac{607771387771}{1000000000000}\right)\right)\right) \]
        2. *-lowering-*.f6499.3%

          \[\leadsto \mathsf{+.f64}\left(x, \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(\mathsf{+.f64}\left(\mathsf{*.f64}\left(z, \frac{313060547623}{100000000000}\right), \frac{55833770631}{5000000000}\right), z\right), t\right), z\right), a\right), z\right), b\right)\right), \mathsf{+.f64}\left(\mathsf{*.f64}\left(z, \frac{119400905721}{10000000000}\right), \frac{607771387771}{1000000000000}\right)\right)\right) \]
      5. Simplified99.3%

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

        \[\leadsto \color{blue}{\frac{a \cdot \left(y \cdot z\right)}{\frac{607771387771}{1000000000000} + \frac{119400905721}{10000000000} \cdot z}} \]
      7. Step-by-step derivation
        1. /-lowering-/.f64N/A

          \[\leadsto \mathsf{/.f64}\left(\left(a \cdot \left(y \cdot z\right)\right), \color{blue}{\left(\frac{607771387771}{1000000000000} + \frac{119400905721}{10000000000} \cdot z\right)}\right) \]
        2. *-lowering-*.f64N/A

          \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(a, \left(y \cdot z\right)\right), \left(\color{blue}{\frac{607771387771}{1000000000000}} + \frac{119400905721}{10000000000} \cdot z\right)\right) \]
        3. *-lowering-*.f64N/A

          \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(a, \mathsf{*.f64}\left(y, z\right)\right), \left(\frac{607771387771}{1000000000000} + \frac{119400905721}{10000000000} \cdot z\right)\right) \]
        4. +-lowering-+.f64N/A

          \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(a, \mathsf{*.f64}\left(y, z\right)\right), \mathsf{+.f64}\left(\frac{607771387771}{1000000000000}, \color{blue}{\left(\frac{119400905721}{10000000000} \cdot z\right)}\right)\right) \]
        5. *-commutativeN/A

          \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(a, \mathsf{*.f64}\left(y, z\right)\right), \mathsf{+.f64}\left(\frac{607771387771}{1000000000000}, \left(z \cdot \color{blue}{\frac{119400905721}{10000000000}}\right)\right)\right) \]
        6. *-lowering-*.f6468.0%

          \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(a, \mathsf{*.f64}\left(y, z\right)\right), \mathsf{+.f64}\left(\frac{607771387771}{1000000000000}, \mathsf{*.f64}\left(z, \color{blue}{\frac{119400905721}{10000000000}}\right)\right)\right) \]
      8. Simplified68.0%

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

        \[\leadsto \color{blue}{\frac{1000000000000}{607771387771} \cdot \left(a \cdot \left(y \cdot z\right)\right)} \]
      10. Step-by-step derivation
        1. *-lowering-*.f64N/A

          \[\leadsto \mathsf{*.f64}\left(\frac{1000000000000}{607771387771}, \color{blue}{\left(a \cdot \left(y \cdot z\right)\right)}\right) \]
        2. *-lowering-*.f64N/A

          \[\leadsto \mathsf{*.f64}\left(\frac{1000000000000}{607771387771}, \mathsf{*.f64}\left(a, \color{blue}{\left(y \cdot z\right)}\right)\right) \]
        3. *-lowering-*.f6468.2%

          \[\leadsto \mathsf{*.f64}\left(\frac{1000000000000}{607771387771}, \mathsf{*.f64}\left(a, \mathsf{*.f64}\left(y, \color{blue}{z}\right)\right)\right) \]
      11. Simplified68.2%

        \[\leadsto \color{blue}{1.6453555072203998 \cdot \left(a \cdot \left(y \cdot z\right)\right)} \]

      if -8.0999999999999999e-50 < z < 3.8000000000000002e-5

      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. Add Preprocessing
      3. Taylor expanded in z around 0

        \[\leadsto \color{blue}{x + \frac{1000000000000}{607771387771} \cdot \left(b \cdot y\right)} \]
      4. Step-by-step derivation
        1. +-lowering-+.f64N/A

          \[\leadsto \mathsf{+.f64}\left(x, \color{blue}{\left(\frac{1000000000000}{607771387771} \cdot \left(b \cdot y\right)\right)}\right) \]
        2. *-commutativeN/A

          \[\leadsto \mathsf{+.f64}\left(x, \left(\left(b \cdot y\right) \cdot \color{blue}{\frac{1000000000000}{607771387771}}\right)\right) \]
        3. associate-*l*N/A

          \[\leadsto \mathsf{+.f64}\left(x, \left(b \cdot \color{blue}{\left(y \cdot \frac{1000000000000}{607771387771}\right)}\right)\right) \]
        4. *-lowering-*.f64N/A

          \[\leadsto \mathsf{+.f64}\left(x, \mathsf{*.f64}\left(b, \color{blue}{\left(y \cdot \frac{1000000000000}{607771387771}\right)}\right)\right) \]
        5. *-lowering-*.f6486.5%

          \[\leadsto \mathsf{+.f64}\left(x, \mathsf{*.f64}\left(b, \mathsf{*.f64}\left(y, \color{blue}{\frac{1000000000000}{607771387771}}\right)\right)\right) \]
      5. Simplified86.5%

        \[\leadsto \color{blue}{x + b \cdot \left(y \cdot 1.6453555072203998\right)} \]
    3. Recombined 3 regimes into one program.
    4. Add Preprocessing

    Alternative 11: 64.5% accurate, 2.5× speedup?

    \[\begin{array}{l} \\ \begin{array}{l} t_1 := x + y \cdot 3.13060547623\\ \mathbf{if}\;z \leq -2.5 \cdot 10^{-63}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq 6.2 \cdot 10^{-153}:\\ \;\;\;\;1.6453555072203998 \cdot \left(y \cdot b\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
    (FPCore (x y z t a b)
     :precision binary64
     (let* ((t_1 (+ x (* y 3.13060547623))))
       (if (<= z -2.5e-63)
         t_1
         (if (<= z 6.2e-153) (* 1.6453555072203998 (* y b)) t_1))))
    double code(double x, double y, double z, double t, double a, double b) {
    	double t_1 = x + (y * 3.13060547623);
    	double tmp;
    	if (z <= -2.5e-63) {
    		tmp = t_1;
    	} else if (z <= 6.2e-153) {
    		tmp = 1.6453555072203998 * (y * 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 + (y * 3.13060547623d0)
        if (z <= (-2.5d-63)) then
            tmp = t_1
        else if (z <= 6.2d-153) then
            tmp = 1.6453555072203998d0 * (y * 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 + (y * 3.13060547623);
    	double tmp;
    	if (z <= -2.5e-63) {
    		tmp = t_1;
    	} else if (z <= 6.2e-153) {
    		tmp = 1.6453555072203998 * (y * b);
    	} else {
    		tmp = t_1;
    	}
    	return tmp;
    }
    
    def code(x, y, z, t, a, b):
    	t_1 = x + (y * 3.13060547623)
    	tmp = 0
    	if z <= -2.5e-63:
    		tmp = t_1
    	elif z <= 6.2e-153:
    		tmp = 1.6453555072203998 * (y * b)
    	else:
    		tmp = t_1
    	return tmp
    
    function code(x, y, z, t, a, b)
    	t_1 = Float64(x + Float64(y * 3.13060547623))
    	tmp = 0.0
    	if (z <= -2.5e-63)
    		tmp = t_1;
    	elseif (z <= 6.2e-153)
    		tmp = Float64(1.6453555072203998 * Float64(y * b));
    	else
    		tmp = t_1;
    	end
    	return tmp
    end
    
    function tmp_2 = code(x, y, z, t, a, b)
    	t_1 = x + (y * 3.13060547623);
    	tmp = 0.0;
    	if (z <= -2.5e-63)
    		tmp = t_1;
    	elseif (z <= 6.2e-153)
    		tmp = 1.6453555072203998 * (y * b);
    	else
    		tmp = t_1;
    	end
    	tmp_2 = tmp;
    end
    
    code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(x + N[(y * 3.13060547623), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[z, -2.5e-63], t$95$1, If[LessEqual[z, 6.2e-153], N[(1.6453555072203998 * N[(y * b), $MachinePrecision]), $MachinePrecision], t$95$1]]]
    
    \begin{array}{l}
    
    \\
    \begin{array}{l}
    t_1 := x + y \cdot 3.13060547623\\
    \mathbf{if}\;z \leq -2.5 \cdot 10^{-63}:\\
    \;\;\;\;t\_1\\
    
    \mathbf{elif}\;z \leq 6.2 \cdot 10^{-153}:\\
    \;\;\;\;1.6453555072203998 \cdot \left(y \cdot b\right)\\
    
    \mathbf{else}:\\
    \;\;\;\;t\_1\\
    
    
    \end{array}
    \end{array}
    
    Derivation
    1. Split input into 2 regimes
    2. if z < -2.5000000000000001e-63 or 6.1999999999999999e-153 < z

      1. Initial program 41.1%

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

        \[\leadsto \color{blue}{x + \frac{313060547623}{100000000000} \cdot y} \]
      4. Step-by-step derivation
        1. +-lowering-+.f64N/A

          \[\leadsto \mathsf{+.f64}\left(x, \color{blue}{\left(\frac{313060547623}{100000000000} \cdot y\right)}\right) \]
        2. *-commutativeN/A

          \[\leadsto \mathsf{+.f64}\left(x, \left(y \cdot \color{blue}{\frac{313060547623}{100000000000}}\right)\right) \]
        3. *-lowering-*.f6473.8%

          \[\leadsto \mathsf{+.f64}\left(x, \mathsf{*.f64}\left(y, \color{blue}{\frac{313060547623}{100000000000}}\right)\right) \]
      5. Simplified73.8%

        \[\leadsto \color{blue}{x + y \cdot 3.13060547623} \]

      if -2.5000000000000001e-63 < z < 6.1999999999999999e-153

      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. Add Preprocessing
      3. Taylor expanded in b around inf

        \[\leadsto \color{blue}{\frac{b \cdot y}{\frac{607771387771}{1000000000000} + z \cdot \left(\frac{119400905721}{10000000000} + z \cdot \left(\frac{314690115749}{10000000000} + z \cdot \left(\frac{15234687407}{1000000000} + z\right)\right)\right)}} \]
      4. Step-by-step derivation
        1. /-lowering-/.f64N/A

          \[\leadsto \mathsf{/.f64}\left(\left(b \cdot y\right), \color{blue}{\left(\frac{607771387771}{1000000000000} + z \cdot \left(\frac{119400905721}{10000000000} + z \cdot \left(\frac{314690115749}{10000000000} + z \cdot \left(\frac{15234687407}{1000000000} + z\right)\right)\right)\right)}\right) \]
        2. *-commutativeN/A

          \[\leadsto \mathsf{/.f64}\left(\left(y \cdot b\right), \left(\color{blue}{\frac{607771387771}{1000000000000}} + z \cdot \left(\frac{119400905721}{10000000000} + z \cdot \left(\frac{314690115749}{10000000000} + z \cdot \left(\frac{15234687407}{1000000000} + z\right)\right)\right)\right)\right) \]
        3. *-lowering-*.f64N/A

          \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, b\right), \left(\color{blue}{\frac{607771387771}{1000000000000}} + z \cdot \left(\frac{119400905721}{10000000000} + z \cdot \left(\frac{314690115749}{10000000000} + z \cdot \left(\frac{15234687407}{1000000000} + z\right)\right)\right)\right)\right) \]
        4. +-lowering-+.f64N/A

          \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, b\right), \mathsf{+.f64}\left(\frac{607771387771}{1000000000000}, \color{blue}{\left(z \cdot \left(\frac{119400905721}{10000000000} + z \cdot \left(\frac{314690115749}{10000000000} + z \cdot \left(\frac{15234687407}{1000000000} + z\right)\right)\right)\right)}\right)\right) \]
        5. *-lowering-*.f64N/A

          \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, b\right), \mathsf{+.f64}\left(\frac{607771387771}{1000000000000}, \mathsf{*.f64}\left(z, \color{blue}{\left(\frac{119400905721}{10000000000} + z \cdot \left(\frac{314690115749}{10000000000} + z \cdot \left(\frac{15234687407}{1000000000} + z\right)\right)\right)}\right)\right)\right) \]
        6. +-lowering-+.f64N/A

          \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, b\right), \mathsf{+.f64}\left(\frac{607771387771}{1000000000000}, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\frac{119400905721}{10000000000}, \color{blue}{\left(z \cdot \left(\frac{314690115749}{10000000000} + z \cdot \left(\frac{15234687407}{1000000000} + z\right)\right)\right)}\right)\right)\right)\right) \]
        7. *-lowering-*.f64N/A

          \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, b\right), \mathsf{+.f64}\left(\frac{607771387771}{1000000000000}, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\frac{119400905721}{10000000000}, \mathsf{*.f64}\left(z, \color{blue}{\left(\frac{314690115749}{10000000000} + z \cdot \left(\frac{15234687407}{1000000000} + z\right)\right)}\right)\right)\right)\right)\right) \]
        8. +-lowering-+.f64N/A

          \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, b\right), \mathsf{+.f64}\left(\frac{607771387771}{1000000000000}, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\frac{119400905721}{10000000000}, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\frac{314690115749}{10000000000}, \color{blue}{\left(z \cdot \left(\frac{15234687407}{1000000000} + z\right)\right)}\right)\right)\right)\right)\right)\right) \]
        9. *-lowering-*.f64N/A

          \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, b\right), \mathsf{+.f64}\left(\frac{607771387771}{1000000000000}, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\frac{119400905721}{10000000000}, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\frac{314690115749}{10000000000}, \mathsf{*.f64}\left(z, \color{blue}{\left(\frac{15234687407}{1000000000} + z\right)}\right)\right)\right)\right)\right)\right)\right) \]
        10. +-commutativeN/A

          \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, b\right), \mathsf{+.f64}\left(\frac{607771387771}{1000000000000}, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\frac{119400905721}{10000000000}, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\frac{314690115749}{10000000000}, \mathsf{*.f64}\left(z, \left(z + \color{blue}{\frac{15234687407}{1000000000}}\right)\right)\right)\right)\right)\right)\right)\right) \]
        11. +-lowering-+.f6458.1%

          \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, b\right), \mathsf{+.f64}\left(\frac{607771387771}{1000000000000}, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\frac{119400905721}{10000000000}, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\frac{314690115749}{10000000000}, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(z, \color{blue}{\frac{15234687407}{1000000000}}\right)\right)\right)\right)\right)\right)\right)\right) \]
      5. Simplified58.1%

        \[\leadsto \color{blue}{\frac{y \cdot b}{0.607771387771 + z \cdot \left(11.9400905721 + z \cdot \left(31.4690115749 + z \cdot \left(z + 15.234687407\right)\right)\right)}} \]
      6. Taylor expanded in z around 0

        \[\leadsto \color{blue}{\frac{1000000000000}{607771387771} \cdot \left(b \cdot y\right)} \]
      7. Step-by-step derivation
        1. *-commutativeN/A

          \[\leadsto \left(b \cdot y\right) \cdot \color{blue}{\frac{1000000000000}{607771387771}} \]
        2. *-lowering-*.f64N/A

          \[\leadsto \mathsf{*.f64}\left(\left(b \cdot y\right), \color{blue}{\frac{1000000000000}{607771387771}}\right) \]
        3. *-commutativeN/A

          \[\leadsto \mathsf{*.f64}\left(\left(y \cdot b\right), \frac{1000000000000}{607771387771}\right) \]
        4. *-lowering-*.f6458.2%

          \[\leadsto \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, b\right), \frac{1000000000000}{607771387771}\right) \]
      8. Simplified58.2%

        \[\leadsto \color{blue}{\left(y \cdot b\right) \cdot 1.6453555072203998} \]
    3. Recombined 2 regimes into one program.
    4. Final simplification69.2%

      \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -2.5 \cdot 10^{-63}:\\ \;\;\;\;x + y \cdot 3.13060547623\\ \mathbf{elif}\;z \leq 6.2 \cdot 10^{-153}:\\ \;\;\;\;1.6453555072203998 \cdot \left(y \cdot b\right)\\ \mathbf{else}:\\ \;\;\;\;x + y \cdot 3.13060547623\\ \end{array} \]
    5. Add Preprocessing

    Alternative 12: 48.7% accurate, 2.5× speedup?

    \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -210:\\ \;\;\;\;x\\ \mathbf{elif}\;x \leq 1.2 \cdot 10^{-215}:\\ \;\;\;\;1.6453555072203998 \cdot \left(y \cdot b\right)\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \end{array} \]
    (FPCore (x y z t a b)
     :precision binary64
     (if (<= x -210.0) x (if (<= x 1.2e-215) (* 1.6453555072203998 (* y b)) x)))
    double code(double x, double y, double z, double t, double a, double b) {
    	double tmp;
    	if (x <= -210.0) {
    		tmp = x;
    	} else if (x <= 1.2e-215) {
    		tmp = 1.6453555072203998 * (y * b);
    	} else {
    		tmp = x;
    	}
    	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 (x <= (-210.0d0)) then
            tmp = x
        else if (x <= 1.2d-215) then
            tmp = 1.6453555072203998d0 * (y * b)
        else
            tmp = x
        end if
        code = tmp
    end function
    
    public static double code(double x, double y, double z, double t, double a, double b) {
    	double tmp;
    	if (x <= -210.0) {
    		tmp = x;
    	} else if (x <= 1.2e-215) {
    		tmp = 1.6453555072203998 * (y * b);
    	} else {
    		tmp = x;
    	}
    	return tmp;
    }
    
    def code(x, y, z, t, a, b):
    	tmp = 0
    	if x <= -210.0:
    		tmp = x
    	elif x <= 1.2e-215:
    		tmp = 1.6453555072203998 * (y * b)
    	else:
    		tmp = x
    	return tmp
    
    function code(x, y, z, t, a, b)
    	tmp = 0.0
    	if (x <= -210.0)
    		tmp = x;
    	elseif (x <= 1.2e-215)
    		tmp = Float64(1.6453555072203998 * Float64(y * b));
    	else
    		tmp = x;
    	end
    	return tmp
    end
    
    function tmp_2 = code(x, y, z, t, a, b)
    	tmp = 0.0;
    	if (x <= -210.0)
    		tmp = x;
    	elseif (x <= 1.2e-215)
    		tmp = 1.6453555072203998 * (y * b);
    	else
    		tmp = x;
    	end
    	tmp_2 = tmp;
    end
    
    code[x_, y_, z_, t_, a_, b_] := If[LessEqual[x, -210.0], x, If[LessEqual[x, 1.2e-215], N[(1.6453555072203998 * N[(y * b), $MachinePrecision]), $MachinePrecision], x]]
    
    \begin{array}{l}
    
    \\
    \begin{array}{l}
    \mathbf{if}\;x \leq -210:\\
    \;\;\;\;x\\
    
    \mathbf{elif}\;x \leq 1.2 \cdot 10^{-215}:\\
    \;\;\;\;1.6453555072203998 \cdot \left(y \cdot b\right)\\
    
    \mathbf{else}:\\
    \;\;\;\;x\\
    
    
    \end{array}
    \end{array}
    
    Derivation
    1. Split input into 2 regimes
    2. if x < -210 or 1.20000000000000005e-215 < x

      1. Initial program 57.9%

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

        \[\leadsto \color{blue}{x} \]
      4. Step-by-step derivation
        1. Simplified60.2%

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

        if -210 < x < 1.20000000000000005e-215

        1. Initial program 58.8%

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

          \[\leadsto \color{blue}{\frac{b \cdot y}{\frac{607771387771}{1000000000000} + z \cdot \left(\frac{119400905721}{10000000000} + z \cdot \left(\frac{314690115749}{10000000000} + z \cdot \left(\frac{15234687407}{1000000000} + z\right)\right)\right)}} \]
        4. Step-by-step derivation
          1. /-lowering-/.f64N/A

            \[\leadsto \mathsf{/.f64}\left(\left(b \cdot y\right), \color{blue}{\left(\frac{607771387771}{1000000000000} + z \cdot \left(\frac{119400905721}{10000000000} + z \cdot \left(\frac{314690115749}{10000000000} + z \cdot \left(\frac{15234687407}{1000000000} + z\right)\right)\right)\right)}\right) \]
          2. *-commutativeN/A

            \[\leadsto \mathsf{/.f64}\left(\left(y \cdot b\right), \left(\color{blue}{\frac{607771387771}{1000000000000}} + z \cdot \left(\frac{119400905721}{10000000000} + z \cdot \left(\frac{314690115749}{10000000000} + z \cdot \left(\frac{15234687407}{1000000000} + z\right)\right)\right)\right)\right) \]
          3. *-lowering-*.f64N/A

            \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, b\right), \left(\color{blue}{\frac{607771387771}{1000000000000}} + z \cdot \left(\frac{119400905721}{10000000000} + z \cdot \left(\frac{314690115749}{10000000000} + z \cdot \left(\frac{15234687407}{1000000000} + z\right)\right)\right)\right)\right) \]
          4. +-lowering-+.f64N/A

            \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, b\right), \mathsf{+.f64}\left(\frac{607771387771}{1000000000000}, \color{blue}{\left(z \cdot \left(\frac{119400905721}{10000000000} + z \cdot \left(\frac{314690115749}{10000000000} + z \cdot \left(\frac{15234687407}{1000000000} + z\right)\right)\right)\right)}\right)\right) \]
          5. *-lowering-*.f64N/A

            \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, b\right), \mathsf{+.f64}\left(\frac{607771387771}{1000000000000}, \mathsf{*.f64}\left(z, \color{blue}{\left(\frac{119400905721}{10000000000} + z \cdot \left(\frac{314690115749}{10000000000} + z \cdot \left(\frac{15234687407}{1000000000} + z\right)\right)\right)}\right)\right)\right) \]
          6. +-lowering-+.f64N/A

            \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, b\right), \mathsf{+.f64}\left(\frac{607771387771}{1000000000000}, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\frac{119400905721}{10000000000}, \color{blue}{\left(z \cdot \left(\frac{314690115749}{10000000000} + z \cdot \left(\frac{15234687407}{1000000000} + z\right)\right)\right)}\right)\right)\right)\right) \]
          7. *-lowering-*.f64N/A

            \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, b\right), \mathsf{+.f64}\left(\frac{607771387771}{1000000000000}, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\frac{119400905721}{10000000000}, \mathsf{*.f64}\left(z, \color{blue}{\left(\frac{314690115749}{10000000000} + z \cdot \left(\frac{15234687407}{1000000000} + z\right)\right)}\right)\right)\right)\right)\right) \]
          8. +-lowering-+.f64N/A

            \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, b\right), \mathsf{+.f64}\left(\frac{607771387771}{1000000000000}, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\frac{119400905721}{10000000000}, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\frac{314690115749}{10000000000}, \color{blue}{\left(z \cdot \left(\frac{15234687407}{1000000000} + z\right)\right)}\right)\right)\right)\right)\right)\right) \]
          9. *-lowering-*.f64N/A

            \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, b\right), \mathsf{+.f64}\left(\frac{607771387771}{1000000000000}, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\frac{119400905721}{10000000000}, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\frac{314690115749}{10000000000}, \mathsf{*.f64}\left(z, \color{blue}{\left(\frac{15234687407}{1000000000} + z\right)}\right)\right)\right)\right)\right)\right)\right) \]
          10. +-commutativeN/A

            \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, b\right), \mathsf{+.f64}\left(\frac{607771387771}{1000000000000}, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\frac{119400905721}{10000000000}, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\frac{314690115749}{10000000000}, \mathsf{*.f64}\left(z, \left(z + \color{blue}{\frac{15234687407}{1000000000}}\right)\right)\right)\right)\right)\right)\right)\right) \]
          11. +-lowering-+.f6437.9%

            \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, b\right), \mathsf{+.f64}\left(\frac{607771387771}{1000000000000}, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\frac{119400905721}{10000000000}, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\frac{314690115749}{10000000000}, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(z, \color{blue}{\frac{15234687407}{1000000000}}\right)\right)\right)\right)\right)\right)\right)\right) \]
        5. Simplified37.9%

          \[\leadsto \color{blue}{\frac{y \cdot b}{0.607771387771 + z \cdot \left(11.9400905721 + z \cdot \left(31.4690115749 + z \cdot \left(z + 15.234687407\right)\right)\right)}} \]
        6. Taylor expanded in z around 0

          \[\leadsto \color{blue}{\frac{1000000000000}{607771387771} \cdot \left(b \cdot y\right)} \]
        7. Step-by-step derivation
          1. *-commutativeN/A

            \[\leadsto \left(b \cdot y\right) \cdot \color{blue}{\frac{1000000000000}{607771387771}} \]
          2. *-lowering-*.f64N/A

            \[\leadsto \mathsf{*.f64}\left(\left(b \cdot y\right), \color{blue}{\frac{1000000000000}{607771387771}}\right) \]
          3. *-commutativeN/A

            \[\leadsto \mathsf{*.f64}\left(\left(y \cdot b\right), \frac{1000000000000}{607771387771}\right) \]
          4. *-lowering-*.f6436.3%

            \[\leadsto \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, b\right), \frac{1000000000000}{607771387771}\right) \]
        8. Simplified36.3%

          \[\leadsto \color{blue}{\left(y \cdot b\right) \cdot 1.6453555072203998} \]
      5. Recombined 2 regimes into one program.
      6. Final simplification51.1%

        \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -210:\\ \;\;\;\;x\\ \mathbf{elif}\;x \leq 1.2 \cdot 10^{-215}:\\ \;\;\;\;1.6453555072203998 \cdot \left(y \cdot b\right)\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \]
      7. Add Preprocessing

      Alternative 13: 48.7% accurate, 2.5× speedup?

      \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -500:\\ \;\;\;\;x\\ \mathbf{elif}\;x \leq 1.25 \cdot 10^{-215}:\\ \;\;\;\;b \cdot \left(y \cdot 1.6453555072203998\right)\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \end{array} \]
      (FPCore (x y z t a b)
       :precision binary64
       (if (<= x -500.0) x (if (<= x 1.25e-215) (* b (* y 1.6453555072203998)) x)))
      double code(double x, double y, double z, double t, double a, double b) {
      	double tmp;
      	if (x <= -500.0) {
      		tmp = x;
      	} else if (x <= 1.25e-215) {
      		tmp = b * (y * 1.6453555072203998);
      	} else {
      		tmp = x;
      	}
      	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 (x <= (-500.0d0)) then
              tmp = x
          else if (x <= 1.25d-215) then
              tmp = b * (y * 1.6453555072203998d0)
          else
              tmp = x
          end if
          code = tmp
      end function
      
      public static double code(double x, double y, double z, double t, double a, double b) {
      	double tmp;
      	if (x <= -500.0) {
      		tmp = x;
      	} else if (x <= 1.25e-215) {
      		tmp = b * (y * 1.6453555072203998);
      	} else {
      		tmp = x;
      	}
      	return tmp;
      }
      
      def code(x, y, z, t, a, b):
      	tmp = 0
      	if x <= -500.0:
      		tmp = x
      	elif x <= 1.25e-215:
      		tmp = b * (y * 1.6453555072203998)
      	else:
      		tmp = x
      	return tmp
      
      function code(x, y, z, t, a, b)
      	tmp = 0.0
      	if (x <= -500.0)
      		tmp = x;
      	elseif (x <= 1.25e-215)
      		tmp = Float64(b * Float64(y * 1.6453555072203998));
      	else
      		tmp = x;
      	end
      	return tmp
      end
      
      function tmp_2 = code(x, y, z, t, a, b)
      	tmp = 0.0;
      	if (x <= -500.0)
      		tmp = x;
      	elseif (x <= 1.25e-215)
      		tmp = b * (y * 1.6453555072203998);
      	else
      		tmp = x;
      	end
      	tmp_2 = tmp;
      end
      
      code[x_, y_, z_, t_, a_, b_] := If[LessEqual[x, -500.0], x, If[LessEqual[x, 1.25e-215], N[(b * N[(y * 1.6453555072203998), $MachinePrecision]), $MachinePrecision], x]]
      
      \begin{array}{l}
      
      \\
      \begin{array}{l}
      \mathbf{if}\;x \leq -500:\\
      \;\;\;\;x\\
      
      \mathbf{elif}\;x \leq 1.25 \cdot 10^{-215}:\\
      \;\;\;\;b \cdot \left(y \cdot 1.6453555072203998\right)\\
      
      \mathbf{else}:\\
      \;\;\;\;x\\
      
      
      \end{array}
      \end{array}
      
      Derivation
      1. Split input into 2 regimes
      2. if x < -500 or 1.24999999999999989e-215 < x

        1. Initial program 57.9%

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

          \[\leadsto \color{blue}{x} \]
        4. Step-by-step derivation
          1. Simplified60.2%

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

          if -500 < x < 1.24999999999999989e-215

          1. Initial program 58.8%

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

            \[\leadsto \color{blue}{\frac{b \cdot y}{\frac{607771387771}{1000000000000} + z \cdot \left(\frac{119400905721}{10000000000} + z \cdot \left(\frac{314690115749}{10000000000} + z \cdot \left(\frac{15234687407}{1000000000} + z\right)\right)\right)}} \]
          4. Step-by-step derivation
            1. /-lowering-/.f64N/A

              \[\leadsto \mathsf{/.f64}\left(\left(b \cdot y\right), \color{blue}{\left(\frac{607771387771}{1000000000000} + z \cdot \left(\frac{119400905721}{10000000000} + z \cdot \left(\frac{314690115749}{10000000000} + z \cdot \left(\frac{15234687407}{1000000000} + z\right)\right)\right)\right)}\right) \]
            2. *-commutativeN/A

              \[\leadsto \mathsf{/.f64}\left(\left(y \cdot b\right), \left(\color{blue}{\frac{607771387771}{1000000000000}} + z \cdot \left(\frac{119400905721}{10000000000} + z \cdot \left(\frac{314690115749}{10000000000} + z \cdot \left(\frac{15234687407}{1000000000} + z\right)\right)\right)\right)\right) \]
            3. *-lowering-*.f64N/A

              \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, b\right), \left(\color{blue}{\frac{607771387771}{1000000000000}} + z \cdot \left(\frac{119400905721}{10000000000} + z \cdot \left(\frac{314690115749}{10000000000} + z \cdot \left(\frac{15234687407}{1000000000} + z\right)\right)\right)\right)\right) \]
            4. +-lowering-+.f64N/A

              \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, b\right), \mathsf{+.f64}\left(\frac{607771387771}{1000000000000}, \color{blue}{\left(z \cdot \left(\frac{119400905721}{10000000000} + z \cdot \left(\frac{314690115749}{10000000000} + z \cdot \left(\frac{15234687407}{1000000000} + z\right)\right)\right)\right)}\right)\right) \]
            5. *-lowering-*.f64N/A

              \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, b\right), \mathsf{+.f64}\left(\frac{607771387771}{1000000000000}, \mathsf{*.f64}\left(z, \color{blue}{\left(\frac{119400905721}{10000000000} + z \cdot \left(\frac{314690115749}{10000000000} + z \cdot \left(\frac{15234687407}{1000000000} + z\right)\right)\right)}\right)\right)\right) \]
            6. +-lowering-+.f64N/A

              \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, b\right), \mathsf{+.f64}\left(\frac{607771387771}{1000000000000}, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\frac{119400905721}{10000000000}, \color{blue}{\left(z \cdot \left(\frac{314690115749}{10000000000} + z \cdot \left(\frac{15234687407}{1000000000} + z\right)\right)\right)}\right)\right)\right)\right) \]
            7. *-lowering-*.f64N/A

              \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, b\right), \mathsf{+.f64}\left(\frac{607771387771}{1000000000000}, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\frac{119400905721}{10000000000}, \mathsf{*.f64}\left(z, \color{blue}{\left(\frac{314690115749}{10000000000} + z \cdot \left(\frac{15234687407}{1000000000} + z\right)\right)}\right)\right)\right)\right)\right) \]
            8. +-lowering-+.f64N/A

              \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, b\right), \mathsf{+.f64}\left(\frac{607771387771}{1000000000000}, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\frac{119400905721}{10000000000}, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\frac{314690115749}{10000000000}, \color{blue}{\left(z \cdot \left(\frac{15234687407}{1000000000} + z\right)\right)}\right)\right)\right)\right)\right)\right) \]
            9. *-lowering-*.f64N/A

              \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, b\right), \mathsf{+.f64}\left(\frac{607771387771}{1000000000000}, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\frac{119400905721}{10000000000}, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\frac{314690115749}{10000000000}, \mathsf{*.f64}\left(z, \color{blue}{\left(\frac{15234687407}{1000000000} + z\right)}\right)\right)\right)\right)\right)\right)\right) \]
            10. +-commutativeN/A

              \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, b\right), \mathsf{+.f64}\left(\frac{607771387771}{1000000000000}, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\frac{119400905721}{10000000000}, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\frac{314690115749}{10000000000}, \mathsf{*.f64}\left(z, \left(z + \color{blue}{\frac{15234687407}{1000000000}}\right)\right)\right)\right)\right)\right)\right)\right) \]
            11. +-lowering-+.f6437.9%

              \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, b\right), \mathsf{+.f64}\left(\frac{607771387771}{1000000000000}, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\frac{119400905721}{10000000000}, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(\frac{314690115749}{10000000000}, \mathsf{*.f64}\left(z, \mathsf{+.f64}\left(z, \color{blue}{\frac{15234687407}{1000000000}}\right)\right)\right)\right)\right)\right)\right)\right) \]
          5. Simplified37.9%

            \[\leadsto \color{blue}{\frac{y \cdot b}{0.607771387771 + z \cdot \left(11.9400905721 + z \cdot \left(31.4690115749 + z \cdot \left(z + 15.234687407\right)\right)\right)}} \]
          6. Taylor expanded in z around 0

            \[\leadsto \color{blue}{\frac{1000000000000}{607771387771} \cdot \left(b \cdot y\right)} \]
          7. Step-by-step derivation
            1. *-commutativeN/A

              \[\leadsto \left(b \cdot y\right) \cdot \color{blue}{\frac{1000000000000}{607771387771}} \]
            2. *-lowering-*.f64N/A

              \[\leadsto \mathsf{*.f64}\left(\left(b \cdot y\right), \color{blue}{\frac{1000000000000}{607771387771}}\right) \]
            3. *-commutativeN/A

              \[\leadsto \mathsf{*.f64}\left(\left(y \cdot b\right), \frac{1000000000000}{607771387771}\right) \]
            4. *-lowering-*.f6436.3%

              \[\leadsto \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, b\right), \frac{1000000000000}{607771387771}\right) \]
          8. Simplified36.3%

            \[\leadsto \color{blue}{\left(y \cdot b\right) \cdot 1.6453555072203998} \]
          9. Step-by-step derivation
            1. *-commutativeN/A

              \[\leadsto \frac{1000000000000}{607771387771} \cdot \color{blue}{\left(y \cdot b\right)} \]
            2. associate-*r*N/A

              \[\leadsto \left(\frac{1000000000000}{607771387771} \cdot y\right) \cdot \color{blue}{b} \]
            3. *-lowering-*.f64N/A

              \[\leadsto \mathsf{*.f64}\left(\left(\frac{1000000000000}{607771387771} \cdot y\right), \color{blue}{b}\right) \]
            4. *-lowering-*.f6436.2%

              \[\leadsto \mathsf{*.f64}\left(\mathsf{*.f64}\left(\frac{1000000000000}{607771387771}, y\right), b\right) \]
          10. Applied egg-rr36.2%

            \[\leadsto \color{blue}{\left(1.6453555072203998 \cdot y\right) \cdot b} \]
        5. Recombined 2 regimes into one program.
        6. Final simplification51.1%

          \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -500:\\ \;\;\;\;x\\ \mathbf{elif}\;x \leq 1.25 \cdot 10^{-215}:\\ \;\;\;\;b \cdot \left(y \cdot 1.6453555072203998\right)\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \]
        7. Add Preprocessing

        Alternative 14: 45.5% 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 58.3%

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

          \[\leadsto \color{blue}{x} \]
        4. Step-by-step derivation
          1. Simplified41.9%

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

          Developer Target 1: 98.4% accurate, 0.8× 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 2024160 
          (FPCore (x y z t a b)
            :name "Numeric.SpecFunctions:logGamma from math-functions-0.1.5.2, D"
            :precision binary64
          
            :alt
            (! :herbie-platform default (if (< z -649934499625263200000000000000000000000000000000000000) (+ x (* (+ (- 313060547623/100000000000 (/ 18263520849403207/500000000000000 z)) (/ t (* z z))) (/ y 1))) (if (< z 706696543691428700000000000000000000000000000000000000000000) (+ x (/ y (/ (+ (* (+ (* (+ (* (+ z 15234687407/1000000000) z) 314690115749/10000000000) z) 119400905721/10000000000) z) 607771387771/1000000000000) (+ (* (+ (* (+ (* (+ (* z 313060547623/100000000000) 55833770631/5000000000) z) t) z) a) z) b)))) (+ x (* (+ (- 313060547623/100000000000 (/ 18263520849403207/500000000000000 z)) (/ t (* z z))) (/ y 1))))))
          
            (+ 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))))