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

Percentage Accurate: 58.7% → 97.7%
Time: 17.2s
Alternatives: 14
Speedup: 2.2×

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: 58.7% 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: 97.7% accurate, 0.5× speedup?

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

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

\mathbf{else}:\\
\;\;\;\;\left(y \cdot 3.13060547623 + \left(\frac{y \cdot 11.1667541262}{z} + t \cdot t\_2\right)\right) + \left(x + \left(\left(\frac{y \cdot -47.69379582500642}{z} + t\_2 \cdot -98.5170599679272\right) + \frac{y \cdot 556.47806218377}{z \cdot z}\right)\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 93.9%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Add Preprocessing
    3. Applied egg-rr0

      \[\leadsto expr\]

    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 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 2: 97.1% accurate, 0.5× speedup?

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

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

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


\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 93.9%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Add Preprocessing
    3. Applied egg-rr0

      \[\leadsto expr\]

    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 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 3: 96.3% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := y \cdot 3.13060547623 + x\\ \mathbf{if}\;z \leq -3.5 \cdot 10^{+47}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq 2.45 \cdot 10^{+49}:\\ \;\;\;\;x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771}\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (+ (* y 3.13060547623) x)))
   (if (<= z -3.5e+47)
     t_1
     (if (<= z 2.45e+49)
       (+
        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)))
       t_1))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = (y * 3.13060547623) + x;
	double tmp;
	if (z <= -3.5e+47) {
		tmp = t_1;
	} else if (z <= 2.45e+49) {
		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));
	} 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
    if (z <= (-3.5d+47)) then
        tmp = t_1
    else if (z <= 2.45d+49) then
        tmp = 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))
    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;
	double tmp;
	if (z <= -3.5e+47) {
		tmp = t_1;
	} else if (z <= 2.45e+49) {
		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));
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = (y * 3.13060547623) + x
	tmp = 0
	if z <= -3.5e+47:
		tmp = t_1
	elif z <= 2.45e+49:
		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))
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(Float64(y * 3.13060547623) + x)
	tmp = 0.0
	if (z <= -3.5e+47)
		tmp = t_1;
	elseif (z <= 2.45e+49)
		tmp = 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)));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = (y * 3.13060547623) + x;
	tmp = 0.0;
	if (z <= -3.5e+47)
		tmp = t_1;
	elseif (z <= 2.45e+49)
		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));
	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] + x), $MachinePrecision]}, If[LessEqual[z, -3.5e+47], t$95$1, If[LessEqual[z, 2.45e+49], 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], t$95$1]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := y \cdot 3.13060547623 + x\\
\mathbf{if}\;z \leq -3.5 \cdot 10^{+47}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;z \leq 2.45 \cdot 10^{+49}:\\
\;\;\;\;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}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -3.50000000000000015e47 or 2.4500000000000001e49 < z

    1. Initial program 6.1%

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

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -3.50000000000000015e47 < z < 2.4500000000000001e49

    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. Add Preprocessing

Alternative 4: 95.5% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := y \cdot 3.13060547623 + x\\ \mathbf{if}\;z \leq -6.6 \cdot 10^{+47}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq 2.32 \cdot 10^{+49}:\\ \;\;\;\;x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(z \cdot \left(z \cdot z\right) + 11.9400905721\right) \cdot z + 0.607771387771}\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (+ (* y 3.13060547623) x)))
   (if (<= z -6.6e+47)
     t_1
     (if (<= z 2.32e+49)
       (+
        x
        (/
         (*
          y
          (+
           (* (+ (* (+ (* (+ (* z 3.13060547623) 11.1667541262) z) t) z) a) z)
           b))
         (+ (* (+ (* z (* z z)) 11.9400905721) z) 0.607771387771)))
       t_1))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = (y * 3.13060547623) + x;
	double tmp;
	if (z <= -6.6e+47) {
		tmp = t_1;
	} else if (z <= 2.32e+49) {
		tmp = x + ((y * ((((((((z * 3.13060547623) + 11.1667541262) * z) + t) * z) + a) * z) + b)) / ((((z * (z * z)) + 11.9400905721) * z) + 0.607771387771));
	} 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
    if (z <= (-6.6d+47)) then
        tmp = t_1
    else if (z <= 2.32d+49) then
        tmp = x + ((y * ((((((((z * 3.13060547623d0) + 11.1667541262d0) * z) + t) * z) + a) * z) + b)) / ((((z * (z * z)) + 11.9400905721d0) * z) + 0.607771387771d0))
    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;
	double tmp;
	if (z <= -6.6e+47) {
		tmp = t_1;
	} else if (z <= 2.32e+49) {
		tmp = x + ((y * ((((((((z * 3.13060547623) + 11.1667541262) * z) + t) * z) + a) * z) + b)) / ((((z * (z * z)) + 11.9400905721) * z) + 0.607771387771));
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = (y * 3.13060547623) + x
	tmp = 0
	if z <= -6.6e+47:
		tmp = t_1
	elif z <= 2.32e+49:
		tmp = x + ((y * ((((((((z * 3.13060547623) + 11.1667541262) * z) + t) * z) + a) * z) + b)) / ((((z * (z * z)) + 11.9400905721) * z) + 0.607771387771))
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(Float64(y * 3.13060547623) + x)
	tmp = 0.0
	if (z <= -6.6e+47)
		tmp = t_1;
	elseif (z <= 2.32e+49)
		tmp = 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(z * Float64(z * z)) + 11.9400905721) * z) + 0.607771387771)));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = (y * 3.13060547623) + x;
	tmp = 0.0;
	if (z <= -6.6e+47)
		tmp = t_1;
	elseif (z <= 2.32e+49)
		tmp = x + ((y * ((((((((z * 3.13060547623) + 11.1667541262) * z) + t) * z) + a) * z) + b)) / ((((z * (z * z)) + 11.9400905721) * z) + 0.607771387771));
	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] + x), $MachinePrecision]}, If[LessEqual[z, -6.6e+47], t$95$1, If[LessEqual[z, 2.32e+49], 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[(z * N[(z * z), $MachinePrecision]), $MachinePrecision] + 11.9400905721), $MachinePrecision] * z), $MachinePrecision] + 0.607771387771), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := y \cdot 3.13060547623 + x\\
\mathbf{if}\;z \leq -6.6 \cdot 10^{+47}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;z \leq 2.32 \cdot 10^{+49}:\\
\;\;\;\;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(z \cdot \left(z \cdot z\right) + 11.9400905721\right) \cdot z + 0.607771387771}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -6.5999999999999998e47 or 2.3199999999999999e49 < z

    1. Initial program 6.1%

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

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -6.5999999999999998e47 < z < 2.3199999999999999e49

    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 inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 5: 94.0% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := y \cdot 3.13060547623 + x\\ \mathbf{if}\;z \leq -1.55 \cdot 10^{+32}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq 2600000:\\ \;\;\;\;x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(z \cdot 31.4690115749 + 11.9400905721\right) \cdot z + 0.607771387771}\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (+ (* y 3.13060547623) x)))
   (if (<= z -1.55e+32)
     t_1
     (if (<= z 2600000.0)
       (+
        x
        (/
         (*
          y
          (+
           (* (+ (* (+ (* (+ (* z 3.13060547623) 11.1667541262) z) t) z) a) z)
           b))
         (+ (* (+ (* z 31.4690115749) 11.9400905721) z) 0.607771387771)))
       t_1))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = (y * 3.13060547623) + x;
	double tmp;
	if (z <= -1.55e+32) {
		tmp = t_1;
	} else if (z <= 2600000.0) {
		tmp = x + ((y * ((((((((z * 3.13060547623) + 11.1667541262) * z) + t) * z) + a) * z) + b)) / ((((z * 31.4690115749) + 11.9400905721) * z) + 0.607771387771));
	} 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
    if (z <= (-1.55d+32)) then
        tmp = t_1
    else if (z <= 2600000.0d0) then
        tmp = x + ((y * ((((((((z * 3.13060547623d0) + 11.1667541262d0) * z) + t) * z) + a) * z) + b)) / ((((z * 31.4690115749d0) + 11.9400905721d0) * z) + 0.607771387771d0))
    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;
	double tmp;
	if (z <= -1.55e+32) {
		tmp = t_1;
	} else if (z <= 2600000.0) {
		tmp = x + ((y * ((((((((z * 3.13060547623) + 11.1667541262) * z) + t) * z) + a) * z) + b)) / ((((z * 31.4690115749) + 11.9400905721) * z) + 0.607771387771));
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = (y * 3.13060547623) + x
	tmp = 0
	if z <= -1.55e+32:
		tmp = t_1
	elif z <= 2600000.0:
		tmp = x + ((y * ((((((((z * 3.13060547623) + 11.1667541262) * z) + t) * z) + a) * z) + b)) / ((((z * 31.4690115749) + 11.9400905721) * z) + 0.607771387771))
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(Float64(y * 3.13060547623) + x)
	tmp = 0.0
	if (z <= -1.55e+32)
		tmp = t_1;
	elseif (z <= 2600000.0)
		tmp = 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(z * 31.4690115749) + 11.9400905721) * z) + 0.607771387771)));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = (y * 3.13060547623) + x;
	tmp = 0.0;
	if (z <= -1.55e+32)
		tmp = t_1;
	elseif (z <= 2600000.0)
		tmp = x + ((y * ((((((((z * 3.13060547623) + 11.1667541262) * z) + t) * z) + a) * z) + b)) / ((((z * 31.4690115749) + 11.9400905721) * z) + 0.607771387771));
	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] + x), $MachinePrecision]}, If[LessEqual[z, -1.55e+32], t$95$1, If[LessEqual[z, 2600000.0], 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[(z * 31.4690115749), $MachinePrecision] + 11.9400905721), $MachinePrecision] * z), $MachinePrecision] + 0.607771387771), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := y \cdot 3.13060547623 + x\\
\mathbf{if}\;z \leq -1.55 \cdot 10^{+32}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;z \leq 2600000:\\
\;\;\;\;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(z \cdot 31.4690115749 + 11.9400905721\right) \cdot z + 0.607771387771}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -1.54999999999999997e32 or 2.6e6 < z

    1. Initial program 12.5%

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

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -1.54999999999999997e32 < z < 2.6e6

    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 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 6: 93.9% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := y \cdot 3.13060547623 + x\\ \mathbf{if}\;z \leq -0.41:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq 2600000:\\ \;\;\;\;x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{z \cdot 11.9400905721 + 0.607771387771}\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (+ (* y 3.13060547623) x)))
   (if (<= z -0.41)
     t_1
     (if (<= z 2600000.0)
       (+
        x
        (/
         (*
          y
          (+
           (* (+ (* (+ (* (+ (* z 3.13060547623) 11.1667541262) z) t) z) a) z)
           b))
         (+ (* z 11.9400905721) 0.607771387771)))
       t_1))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = (y * 3.13060547623) + x;
	double tmp;
	if (z <= -0.41) {
		tmp = t_1;
	} else if (z <= 2600000.0) {
		tmp = x + ((y * ((((((((z * 3.13060547623) + 11.1667541262) * z) + t) * z) + a) * z) + b)) / ((z * 11.9400905721) + 0.607771387771));
	} 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
    if (z <= (-0.41d0)) then
        tmp = t_1
    else if (z <= 2600000.0d0) then
        tmp = x + ((y * ((((((((z * 3.13060547623d0) + 11.1667541262d0) * z) + t) * z) + a) * z) + b)) / ((z * 11.9400905721d0) + 0.607771387771d0))
    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;
	double tmp;
	if (z <= -0.41) {
		tmp = t_1;
	} else if (z <= 2600000.0) {
		tmp = x + ((y * ((((((((z * 3.13060547623) + 11.1667541262) * z) + t) * z) + a) * z) + b)) / ((z * 11.9400905721) + 0.607771387771));
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = (y * 3.13060547623) + x
	tmp = 0
	if z <= -0.41:
		tmp = t_1
	elif z <= 2600000.0:
		tmp = x + ((y * ((((((((z * 3.13060547623) + 11.1667541262) * z) + t) * z) + a) * z) + b)) / ((z * 11.9400905721) + 0.607771387771))
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(Float64(y * 3.13060547623) + x)
	tmp = 0.0
	if (z <= -0.41)
		tmp = t_1;
	elseif (z <= 2600000.0)
		tmp = 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(z * 11.9400905721) + 0.607771387771)));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = (y * 3.13060547623) + x;
	tmp = 0.0;
	if (z <= -0.41)
		tmp = t_1;
	elseif (z <= 2600000.0)
		tmp = x + ((y * ((((((((z * 3.13060547623) + 11.1667541262) * z) + t) * z) + a) * z) + b)) / ((z * 11.9400905721) + 0.607771387771));
	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] + x), $MachinePrecision]}, If[LessEqual[z, -0.41], t$95$1, If[LessEqual[z, 2600000.0], 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[(z * 11.9400905721), $MachinePrecision] + 0.607771387771), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := y \cdot 3.13060547623 + x\\
\mathbf{if}\;z \leq -0.41:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;z \leq 2600000:\\
\;\;\;\;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)}{z \cdot 11.9400905721 + 0.607771387771}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -0.409999999999999976 or 2.6e6 < z

    1. Initial program 16.1%

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

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -0.409999999999999976 < z < 2.6e6

    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. Applied egg-rr0

      \[\leadsto expr\]
    4. Taylor expanded in z around 0 0

      \[\leadsto expr\]
    5. Simplified0

      \[\leadsto expr\]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 7: 93.7% accurate, 1.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := y \cdot 3.13060547623 + x\\ \mathbf{if}\;z \leq -4.8 \cdot 10^{+21}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq 2400000:\\ \;\;\;\;x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{0.607771387771}\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (+ (* y 3.13060547623) x)))
   (if (<= z -4.8e+21)
     t_1
     (if (<= z 2400000.0)
       (+
        x
        (/
         (*
          y
          (+
           (* (+ (* (+ (* (+ (* z 3.13060547623) 11.1667541262) z) t) z) a) z)
           b))
         0.607771387771))
       t_1))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = (y * 3.13060547623) + x;
	double tmp;
	if (z <= -4.8e+21) {
		tmp = t_1;
	} else if (z <= 2400000.0) {
		tmp = x + ((y * ((((((((z * 3.13060547623) + 11.1667541262) * z) + t) * z) + a) * z) + b)) / 0.607771387771);
	} 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
    if (z <= (-4.8d+21)) then
        tmp = t_1
    else if (z <= 2400000.0d0) then
        tmp = x + ((y * ((((((((z * 3.13060547623d0) + 11.1667541262d0) * z) + t) * z) + a) * z) + b)) / 0.607771387771d0)
    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;
	double tmp;
	if (z <= -4.8e+21) {
		tmp = t_1;
	} else if (z <= 2400000.0) {
		tmp = x + ((y * ((((((((z * 3.13060547623) + 11.1667541262) * z) + t) * z) + a) * z) + b)) / 0.607771387771);
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = (y * 3.13060547623) + x
	tmp = 0
	if z <= -4.8e+21:
		tmp = t_1
	elif z <= 2400000.0:
		tmp = x + ((y * ((((((((z * 3.13060547623) + 11.1667541262) * z) + t) * z) + a) * z) + b)) / 0.607771387771)
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(Float64(y * 3.13060547623) + x)
	tmp = 0.0
	if (z <= -4.8e+21)
		tmp = t_1;
	elseif (z <= 2400000.0)
		tmp = Float64(x + Float64(Float64(y * Float64(Float64(Float64(Float64(Float64(Float64(Float64(Float64(z * 3.13060547623) + 11.1667541262) * z) + t) * z) + a) * z) + b)) / 0.607771387771));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = (y * 3.13060547623) + x;
	tmp = 0.0;
	if (z <= -4.8e+21)
		tmp = t_1;
	elseif (z <= 2400000.0)
		tmp = x + ((y * ((((((((z * 3.13060547623) + 11.1667541262) * z) + t) * z) + a) * z) + b)) / 0.607771387771);
	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] + x), $MachinePrecision]}, If[LessEqual[z, -4.8e+21], t$95$1, If[LessEqual[z, 2400000.0], 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] / 0.607771387771), $MachinePrecision]), $MachinePrecision], t$95$1]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := y \cdot 3.13060547623 + x\\
\mathbf{if}\;z \leq -4.8 \cdot 10^{+21}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;z \leq 2400000:\\
\;\;\;\;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)}{0.607771387771}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -4.8e21 or 2.4e6 < z

    1. Initial program 14.0%

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

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -4.8e21 < z < 2.4e6

    1. Initial program 99.6%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Add Preprocessing
    3. Applied egg-rr0

      \[\leadsto expr\]
    4. Taylor expanded in z around 0 0

      \[\leadsto expr\]
    5. Simplified0

      \[\leadsto expr\]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 8: 85.3% accurate, 1.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := y \cdot 3.13060547623 + x\\ t_2 := b \cdot \left(y \cdot 1.6453555072203998\right) + x\\ \mathbf{if}\;z \leq -2.95 \cdot 10^{+50}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq -2 \cdot 10^{-249}:\\ \;\;\;\;z \cdot \left(y \cdot \left(a \cdot 1.6453555072203998 + b \cdot -32.324150453290734\right)\right) + t\_2\\ \mathbf{elif}\;z \leq 5.2 \cdot 10^{-13}:\\ \;\;\;\;t\_2\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (+ (* y 3.13060547623) x))
        (t_2 (+ (* b (* y 1.6453555072203998)) x)))
   (if (<= z -2.95e+50)
     t_1
     (if (<= z -2e-249)
       (+
        (* z (* y (+ (* a 1.6453555072203998) (* b -32.324150453290734))))
        t_2)
       (if (<= z 5.2e-13) t_2 t_1)))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = (y * 3.13060547623) + x;
	double t_2 = (b * (y * 1.6453555072203998)) + x;
	double tmp;
	if (z <= -2.95e+50) {
		tmp = t_1;
	} else if (z <= -2e-249) {
		tmp = (z * (y * ((a * 1.6453555072203998) + (b * -32.324150453290734)))) + t_2;
	} else if (z <= 5.2e-13) {
		tmp = t_2;
	} 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) :: t_2
    real(8) :: tmp
    t_1 = (y * 3.13060547623d0) + x
    t_2 = (b * (y * 1.6453555072203998d0)) + x
    if (z <= (-2.95d+50)) then
        tmp = t_1
    else if (z <= (-2d-249)) then
        tmp = (z * (y * ((a * 1.6453555072203998d0) + (b * (-32.324150453290734d0))))) + t_2
    else if (z <= 5.2d-13) then
        tmp = t_2
    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;
	double t_2 = (b * (y * 1.6453555072203998)) + x;
	double tmp;
	if (z <= -2.95e+50) {
		tmp = t_1;
	} else if (z <= -2e-249) {
		tmp = (z * (y * ((a * 1.6453555072203998) + (b * -32.324150453290734)))) + t_2;
	} else if (z <= 5.2e-13) {
		tmp = t_2;
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = (y * 3.13060547623) + x
	t_2 = (b * (y * 1.6453555072203998)) + x
	tmp = 0
	if z <= -2.95e+50:
		tmp = t_1
	elif z <= -2e-249:
		tmp = (z * (y * ((a * 1.6453555072203998) + (b * -32.324150453290734)))) + t_2
	elif z <= 5.2e-13:
		tmp = t_2
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(Float64(y * 3.13060547623) + x)
	t_2 = Float64(Float64(b * Float64(y * 1.6453555072203998)) + x)
	tmp = 0.0
	if (z <= -2.95e+50)
		tmp = t_1;
	elseif (z <= -2e-249)
		tmp = Float64(Float64(z * Float64(y * Float64(Float64(a * 1.6453555072203998) + Float64(b * -32.324150453290734)))) + t_2);
	elseif (z <= 5.2e-13)
		tmp = t_2;
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = (y * 3.13060547623) + x;
	t_2 = (b * (y * 1.6453555072203998)) + x;
	tmp = 0.0;
	if (z <= -2.95e+50)
		tmp = t_1;
	elseif (z <= -2e-249)
		tmp = (z * (y * ((a * 1.6453555072203998) + (b * -32.324150453290734)))) + t_2;
	elseif (z <= 5.2e-13)
		tmp = t_2;
	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] + x), $MachinePrecision]}, Block[{t$95$2 = N[(N[(b * N[(y * 1.6453555072203998), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision]}, If[LessEqual[z, -2.95e+50], t$95$1, If[LessEqual[z, -2e-249], N[(N[(z * N[(y * N[(N[(a * 1.6453555072203998), $MachinePrecision] + N[(b * -32.324150453290734), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + t$95$2), $MachinePrecision], If[LessEqual[z, 5.2e-13], t$95$2, t$95$1]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := y \cdot 3.13060547623 + x\\
t_2 := b \cdot \left(y \cdot 1.6453555072203998\right) + x\\
\mathbf{if}\;z \leq -2.95 \cdot 10^{+50}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;z \leq -2 \cdot 10^{-249}:\\
\;\;\;\;z \cdot \left(y \cdot \left(a \cdot 1.6453555072203998 + b \cdot -32.324150453290734\right)\right) + t\_2\\

\mathbf{elif}\;z \leq 5.2 \cdot 10^{-13}:\\
\;\;\;\;t\_2\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if z < -2.9499999999999999e50 or 5.2000000000000001e-13 < z

    1. Initial program 13.3%

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

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -2.9499999999999999e50 < z < -2.00000000000000011e-249

    1. Initial program 98.0%

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

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -2.00000000000000011e-249 < z < 5.2000000000000001e-13

    1. Initial program 99.8%

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

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
  3. Recombined 3 regimes into one program.
  4. Add Preprocessing

Alternative 9: 64.1% accurate, 1.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \left(y \cdot 1.6453555072203998\right) \cdot b\\ t_2 := y \cdot 3.13060547623 + x\\ \mathbf{if}\;z \leq -8.5 \cdot 10^{-27}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;z \leq -1.4 \cdot 10^{-120}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq 8.8 \cdot 10^{-247}:\\ \;\;\;\;x\\ \mathbf{elif}\;z \leq 2.95 \cdot 10^{-183}:\\ \;\;\;\;t\_1\\ \mathbf{else}:\\ \;\;\;\;t\_2\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* (* y 1.6453555072203998) b)) (t_2 (+ (* y 3.13060547623) x)))
   (if (<= z -8.5e-27)
     t_2
     (if (<= z -1.4e-120)
       t_1
       (if (<= z 8.8e-247) x (if (<= z 2.95e-183) t_1 t_2))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = (y * 1.6453555072203998) * b;
	double t_2 = (y * 3.13060547623) + x;
	double tmp;
	if (z <= -8.5e-27) {
		tmp = t_2;
	} else if (z <= -1.4e-120) {
		tmp = t_1;
	} else if (z <= 8.8e-247) {
		tmp = x;
	} else if (z <= 2.95e-183) {
		tmp = t_1;
	} else {
		tmp = t_2;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: t_1
    real(8) :: t_2
    real(8) :: tmp
    t_1 = (y * 1.6453555072203998d0) * b
    t_2 = (y * 3.13060547623d0) + x
    if (z <= (-8.5d-27)) then
        tmp = t_2
    else if (z <= (-1.4d-120)) then
        tmp = t_1
    else if (z <= 8.8d-247) then
        tmp = x
    else if (z <= 2.95d-183) then
        tmp = t_1
    else
        tmp = t_2
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = (y * 1.6453555072203998) * b;
	double t_2 = (y * 3.13060547623) + x;
	double tmp;
	if (z <= -8.5e-27) {
		tmp = t_2;
	} else if (z <= -1.4e-120) {
		tmp = t_1;
	} else if (z <= 8.8e-247) {
		tmp = x;
	} else if (z <= 2.95e-183) {
		tmp = t_1;
	} else {
		tmp = t_2;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = (y * 1.6453555072203998) * b
	t_2 = (y * 3.13060547623) + x
	tmp = 0
	if z <= -8.5e-27:
		tmp = t_2
	elif z <= -1.4e-120:
		tmp = t_1
	elif z <= 8.8e-247:
		tmp = x
	elif z <= 2.95e-183:
		tmp = t_1
	else:
		tmp = t_2
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(Float64(y * 1.6453555072203998) * b)
	t_2 = Float64(Float64(y * 3.13060547623) + x)
	tmp = 0.0
	if (z <= -8.5e-27)
		tmp = t_2;
	elseif (z <= -1.4e-120)
		tmp = t_1;
	elseif (z <= 8.8e-247)
		tmp = x;
	elseif (z <= 2.95e-183)
		tmp = t_1;
	else
		tmp = t_2;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = (y * 1.6453555072203998) * b;
	t_2 = (y * 3.13060547623) + x;
	tmp = 0.0;
	if (z <= -8.5e-27)
		tmp = t_2;
	elseif (z <= -1.4e-120)
		tmp = t_1;
	elseif (z <= 8.8e-247)
		tmp = x;
	elseif (z <= 2.95e-183)
		tmp = t_1;
	else
		tmp = t_2;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(N[(y * 1.6453555072203998), $MachinePrecision] * b), $MachinePrecision]}, Block[{t$95$2 = N[(N[(y * 3.13060547623), $MachinePrecision] + x), $MachinePrecision]}, If[LessEqual[z, -8.5e-27], t$95$2, If[LessEqual[z, -1.4e-120], t$95$1, If[LessEqual[z, 8.8e-247], x, If[LessEqual[z, 2.95e-183], t$95$1, t$95$2]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \left(y \cdot 1.6453555072203998\right) \cdot b\\
t_2 := y \cdot 3.13060547623 + x\\
\mathbf{if}\;z \leq -8.5 \cdot 10^{-27}:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;z \leq -1.4 \cdot 10^{-120}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;z \leq 8.8 \cdot 10^{-247}:\\
\;\;\;\;x\\

\mathbf{elif}\;z \leq 2.95 \cdot 10^{-183}:\\
\;\;\;\;t\_1\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if z < -8.50000000000000033e-27 or 2.94999999999999992e-183 < z

    1. Initial program 38.9%

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

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -8.50000000000000033e-27 < z < -1.39999999999999997e-120 or 8.79999999999999966e-247 < z < 2.94999999999999992e-183

    1. Initial program 99.5%

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

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in b around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
    7. Applied egg-rr0

      \[\leadsto expr\]

    if -1.39999999999999997e-120 < z < 8.79999999999999966e-247

    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 x around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
  3. Recombined 3 regimes into one program.
  4. Add Preprocessing

Alternative 10: 84.1% accurate, 2.2× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := y \cdot 3.13060547623 + x\\ \mathbf{if}\;z \leq -5.1 \cdot 10^{-6}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq 5.2 \cdot 10^{-13}:\\ \;\;\;\;b \cdot \left(y \cdot 1.6453555072203998\right) + x\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (+ (* y 3.13060547623) x)))
   (if (<= z -5.1e-6)
     t_1
     (if (<= z 5.2e-13) (+ (* b (* y 1.6453555072203998)) x) t_1))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = (y * 3.13060547623) + x;
	double tmp;
	if (z <= -5.1e-6) {
		tmp = t_1;
	} else if (z <= 5.2e-13) {
		tmp = (b * (y * 1.6453555072203998)) + 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 = (y * 3.13060547623d0) + x
    if (z <= (-5.1d-6)) then
        tmp = t_1
    else if (z <= 5.2d-13) then
        tmp = (b * (y * 1.6453555072203998d0)) + 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 = (y * 3.13060547623) + x;
	double tmp;
	if (z <= -5.1e-6) {
		tmp = t_1;
	} else if (z <= 5.2e-13) {
		tmp = (b * (y * 1.6453555072203998)) + x;
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = (y * 3.13060547623) + x
	tmp = 0
	if z <= -5.1e-6:
		tmp = t_1
	elif z <= 5.2e-13:
		tmp = (b * (y * 1.6453555072203998)) + x
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(Float64(y * 3.13060547623) + x)
	tmp = 0.0
	if (z <= -5.1e-6)
		tmp = t_1;
	elseif (z <= 5.2e-13)
		tmp = Float64(Float64(b * Float64(y * 1.6453555072203998)) + x);
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = (y * 3.13060547623) + x;
	tmp = 0.0;
	if (z <= -5.1e-6)
		tmp = t_1;
	elseif (z <= 5.2e-13)
		tmp = (b * (y * 1.6453555072203998)) + x;
	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] + x), $MachinePrecision]}, If[LessEqual[z, -5.1e-6], t$95$1, If[LessEqual[z, 5.2e-13], N[(N[(b * N[(y * 1.6453555072203998), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision], t$95$1]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := y \cdot 3.13060547623 + x\\
\mathbf{if}\;z \leq -5.1 \cdot 10^{-6}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;z \leq 5.2 \cdot 10^{-13}:\\
\;\;\;\;b \cdot \left(y \cdot 1.6453555072203998\right) + x\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -5.1000000000000003e-6 or 5.2000000000000001e-13 < z

    1. Initial program 20.1%

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

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -5.1000000000000003e-6 < z < 5.2000000000000001e-13

    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 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 11: 49.4% accurate, 2.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -5.6 \cdot 10^{-89}:\\ \;\;\;\;x\\ \mathbf{elif}\;x \leq 3.7 \cdot 10^{-90}:\\ \;\;\;\;\left(y \cdot 1.6453555072203998\right) \cdot b\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= x -5.6e-89) x (if (<= x 3.7e-90) (* (* y 1.6453555072203998) b) x)))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (x <= -5.6e-89) {
		tmp = x;
	} else if (x <= 3.7e-90) {
		tmp = (y * 1.6453555072203998) * 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 <= (-5.6d-89)) then
        tmp = x
    else if (x <= 3.7d-90) then
        tmp = (y * 1.6453555072203998d0) * 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 <= -5.6e-89) {
		tmp = x;
	} else if (x <= 3.7e-90) {
		tmp = (y * 1.6453555072203998) * b;
	} else {
		tmp = x;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if x <= -5.6e-89:
		tmp = x
	elif x <= 3.7e-90:
		tmp = (y * 1.6453555072203998) * b
	else:
		tmp = x
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (x <= -5.6e-89)
		tmp = x;
	elseif (x <= 3.7e-90)
		tmp = Float64(Float64(y * 1.6453555072203998) * b);
	else
		tmp = x;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (x <= -5.6e-89)
		tmp = x;
	elseif (x <= 3.7e-90)
		tmp = (y * 1.6453555072203998) * b;
	else
		tmp = x;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[x, -5.6e-89], x, If[LessEqual[x, 3.7e-90], N[(N[(y * 1.6453555072203998), $MachinePrecision] * b), $MachinePrecision], x]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq -5.6 \cdot 10^{-89}:\\
\;\;\;\;x\\

\mathbf{elif}\;x \leq 3.7 \cdot 10^{-90}:\\
\;\;\;\;\left(y \cdot 1.6453555072203998\right) \cdot b\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < -5.5999999999999998e-89 or 3.70000000000000018e-90 < x

    1. Initial program 58.1%

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

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -5.5999999999999998e-89 < x < 3.70000000000000018e-90

    1. Initial program 65.4%

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

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in b around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
    7. Applied egg-rr0

      \[\leadsto expr\]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 12: 49.4% accurate, 2.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -1.7 \cdot 10^{-89}:\\ \;\;\;\;x\\ \mathbf{elif}\;x \leq 3.1 \cdot 10^{-90}:\\ \;\;\;\;1.6453555072203998 \cdot \left(b \cdot y\right)\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= x -1.7e-89) x (if (<= x 3.1e-90) (* 1.6453555072203998 (* b y)) x)))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (x <= -1.7e-89) {
		tmp = x;
	} else if (x <= 3.1e-90) {
		tmp = 1.6453555072203998 * (b * y);
	} 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 <= (-1.7d-89)) then
        tmp = x
    else if (x <= 3.1d-90) then
        tmp = 1.6453555072203998d0 * (b * y)
    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 <= -1.7e-89) {
		tmp = x;
	} else if (x <= 3.1e-90) {
		tmp = 1.6453555072203998 * (b * y);
	} else {
		tmp = x;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if x <= -1.7e-89:
		tmp = x
	elif x <= 3.1e-90:
		tmp = 1.6453555072203998 * (b * y)
	else:
		tmp = x
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (x <= -1.7e-89)
		tmp = x;
	elseif (x <= 3.1e-90)
		tmp = Float64(1.6453555072203998 * Float64(b * y));
	else
		tmp = x;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (x <= -1.7e-89)
		tmp = x;
	elseif (x <= 3.1e-90)
		tmp = 1.6453555072203998 * (b * y);
	else
		tmp = x;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[x, -1.7e-89], x, If[LessEqual[x, 3.1e-90], N[(1.6453555072203998 * N[(b * y), $MachinePrecision]), $MachinePrecision], x]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq -1.7 \cdot 10^{-89}:\\
\;\;\;\;x\\

\mathbf{elif}\;x \leq 3.1 \cdot 10^{-90}:\\
\;\;\;\;1.6453555072203998 \cdot \left(b \cdot y\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < -1.7e-89 or 3.1000000000000001e-90 < x

    1. Initial program 58.1%

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

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -1.7e-89 < x < 3.1000000000000001e-90

    1. Initial program 65.4%

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

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in b around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 13: 51.3% accurate, 2.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -7.6 \cdot 10^{-121}:\\ \;\;\;\;x\\ \mathbf{elif}\;x \leq 1.75 \cdot 10^{-103}:\\ \;\;\;\;3.13060547623 \cdot y\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= x -7.6e-121) x (if (<= x 1.75e-103) (* 3.13060547623 y) x)))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (x <= -7.6e-121) {
		tmp = x;
	} else if (x <= 1.75e-103) {
		tmp = 3.13060547623 * y;
	} 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 <= (-7.6d-121)) then
        tmp = x
    else if (x <= 1.75d-103) then
        tmp = 3.13060547623d0 * y
    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 <= -7.6e-121) {
		tmp = x;
	} else if (x <= 1.75e-103) {
		tmp = 3.13060547623 * y;
	} else {
		tmp = x;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if x <= -7.6e-121:
		tmp = x
	elif x <= 1.75e-103:
		tmp = 3.13060547623 * y
	else:
		tmp = x
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (x <= -7.6e-121)
		tmp = x;
	elseif (x <= 1.75e-103)
		tmp = Float64(3.13060547623 * y);
	else
		tmp = x;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (x <= -7.6e-121)
		tmp = x;
	elseif (x <= 1.75e-103)
		tmp = 3.13060547623 * y;
	else
		tmp = x;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[x, -7.6e-121], x, If[LessEqual[x, 1.75e-103], N[(3.13060547623 * y), $MachinePrecision], x]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq -7.6 \cdot 10^{-121}:\\
\;\;\;\;x\\

\mathbf{elif}\;x \leq 1.75 \cdot 10^{-103}:\\
\;\;\;\;3.13060547623 \cdot y\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < -7.6000000000000002e-121 or 1.75000000000000008e-103 < x

    1. Initial program 59.3%

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

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -7.6000000000000002e-121 < x < 1.75000000000000008e-103

    1. Initial program 63.6%

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

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in y around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 14: 44.7% 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 60.5%

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

    \[\leadsto expr\]
  4. Simplified0

    \[\leadsto expr\]
  5. Add Preprocessing

Developer Target 1: 98.5% 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 2024111 
(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))))