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

Percentage Accurate: 57.9% → 97.9%
Time: 18.4s
Alternatives: 17
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 17 alternatives:

AlternativeAccuracySpeedup
The accuracy (vertical axis) and speed (horizontal axis) of each alternatives. Up and to the right is better. The red square shows the initial program, and each blue circle shows an alternative.The line shows the best available speed-accuracy tradeoffs.

Initial Program: 57.9% 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: 97.9% accurate, 0.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(11.1667541262 + z \cdot 3.13060547623\right)\right)\right)\right)}{z \cdot \left(z \cdot \left(z \cdot \left(z + 15.234687407\right) + 31.4690115749\right) + 11.9400905721\right) + 0.607771387771} \leq \infty:\\ \;\;\;\;\mathsf{fma}\left(y, \frac{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right)}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)}, x\right)\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(y, 3.13060547623 + \frac{\frac{t + 457.9610022158428}{z} - 36.52704169880642}{z}, x\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<=
      (/
       (*
        y
        (+
         b
         (* z (+ a (* z (+ t (* z (+ 11.1667541262 (* z 3.13060547623)))))))))
       (+
        (*
         z
         (+ (* z (+ (* z (+ z 15.234687407)) 31.4690115749)) 11.9400905721))
        0.607771387771))
      INFINITY)
   (fma
    y
    (/
     (fma z (fma z (fma z (fma z 3.13060547623 11.1667541262) t) a) b)
     (fma
      z
      (fma z (fma z (+ z 15.234687407) 31.4690115749) 11.9400905721)
      0.607771387771))
    x)
   (fma
    y
    (+ 3.13060547623 (/ (- (/ (+ t 457.9610022158428) z) 36.52704169880642) z))
    x)))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (((y * (b + (z * (a + (z * (t + (z * (11.1667541262 + (z * 3.13060547623))))))))) / ((z * ((z * ((z * (z + 15.234687407)) + 31.4690115749)) + 11.9400905721)) + 0.607771387771)) <= ((double) INFINITY)) {
		tmp = fma(y, (fma(z, fma(z, fma(z, fma(z, 3.13060547623, 11.1667541262), t), a), b) / fma(z, fma(z, fma(z, (z + 15.234687407), 31.4690115749), 11.9400905721), 0.607771387771)), x);
	} else {
		tmp = fma(y, (3.13060547623 + ((((t + 457.9610022158428) / z) - 36.52704169880642) / z)), x);
	}
	return tmp;
}
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (Float64(Float64(y * Float64(b + Float64(z * Float64(a + Float64(z * Float64(t + Float64(z * Float64(11.1667541262 + Float64(z * 3.13060547623))))))))) / Float64(Float64(z * Float64(Float64(z * Float64(Float64(z * Float64(z + 15.234687407)) + 31.4690115749)) + 11.9400905721)) + 0.607771387771)) <= Inf)
		tmp = fma(y, Float64(fma(z, fma(z, fma(z, fma(z, 3.13060547623, 11.1667541262), t), a), b) / fma(z, fma(z, fma(z, Float64(z + 15.234687407), 31.4690115749), 11.9400905721), 0.607771387771)), x);
	else
		tmp = fma(y, Float64(3.13060547623 + Float64(Float64(Float64(Float64(t + 457.9610022158428) / z) - 36.52704169880642) / z)), x);
	end
	return tmp
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[N[(N[(y * N[(b + N[(z * N[(a + N[(z * N[(t + N[(z * N[(11.1667541262 + N[(z * 3.13060547623), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(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]), $MachinePrecision], Infinity], N[(y * N[(N[(z * N[(z * N[(z * N[(z * 3.13060547623 + 11.1667541262), $MachinePrecision] + t), $MachinePrecision] + a), $MachinePrecision] + b), $MachinePrecision] / N[(z * N[(z * N[(z * N[(z + 15.234687407), $MachinePrecision] + 31.4690115749), $MachinePrecision] + 11.9400905721), $MachinePrecision] + 0.607771387771), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision], N[(y * N[(3.13060547623 + N[(N[(N[(N[(t + 457.9610022158428), $MachinePrecision] / z), $MachinePrecision] - 36.52704169880642), $MachinePrecision] / z), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision]]
\begin{array}{l}

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

\mathbf{else}:\\
\;\;\;\;\mathsf{fma}\left(y, 3.13060547623 + \frac{\frac{t + 457.9610022158428}{z} - 36.52704169880642}{z}, x\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 93.7%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Simplified99.1%

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

    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. Simplified0.0%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, \frac{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right)}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)}, x\right)} \]
    3. Add Preprocessing
    4. Taylor expanded in z around -inf 99.9%

      \[\leadsto \mathsf{fma}\left(y, \color{blue}{3.13060547623 + -1 \cdot \frac{36.52704169880642 + -1 \cdot \frac{457.9610022158428 + t}{z}}{z}}, x\right) \]
    5. Step-by-step derivation
      1. mul-1-neg99.9%

        \[\leadsto \mathsf{fma}\left(y, 3.13060547623 + \color{blue}{\left(-\frac{36.52704169880642 + -1 \cdot \frac{457.9610022158428 + t}{z}}{z}\right)}, x\right) \]
      2. unsub-neg99.9%

        \[\leadsto \mathsf{fma}\left(y, \color{blue}{3.13060547623 - \frac{36.52704169880642 + -1 \cdot \frac{457.9610022158428 + t}{z}}{z}}, x\right) \]
      3. mul-1-neg99.9%

        \[\leadsto \mathsf{fma}\left(y, 3.13060547623 - \frac{36.52704169880642 + \color{blue}{\left(-\frac{457.9610022158428 + t}{z}\right)}}{z}, x\right) \]
      4. unsub-neg99.9%

        \[\leadsto \mathsf{fma}\left(y, 3.13060547623 - \frac{\color{blue}{36.52704169880642 - \frac{457.9610022158428 + t}{z}}}{z}, x\right) \]
      5. +-commutative99.9%

        \[\leadsto \mathsf{fma}\left(y, 3.13060547623 - \frac{36.52704169880642 - \frac{\color{blue}{t + 457.9610022158428}}{z}}{z}, x\right) \]
    6. Simplified99.9%

      \[\leadsto \mathsf{fma}\left(y, \color{blue}{3.13060547623 - \frac{36.52704169880642 - \frac{t + 457.9610022158428}{z}}{z}}, x\right) \]
  3. Recombined 2 regimes into one program.
  4. Final simplification99.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(11.1667541262 + z \cdot 3.13060547623\right)\right)\right)\right)}{z \cdot \left(z \cdot \left(z \cdot \left(z + 15.234687407\right) + 31.4690115749\right) + 11.9400905721\right) + 0.607771387771} \leq \infty:\\ \;\;\;\;\mathsf{fma}\left(y, \frac{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right)}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)}, x\right)\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(y, 3.13060547623 + \frac{\frac{t + 457.9610022158428}{z} - 36.52704169880642}{z}, x\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 2: 95.9% accurate, 0.2× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(11.1667541262 + z \cdot 3.13060547623\right)\right)\right)\\ t_2 := \frac{y \cdot t\_1}{z \cdot \left(z \cdot \left(z \cdot \left(z + 15.234687407\right) + 31.4690115749\right) + 11.9400905721\right) + 0.607771387771}\\ \mathbf{if}\;t\_2 \leq -2 \cdot 10^{+258}:\\ \;\;\;\;y \cdot \left(\frac{x}{y} + \frac{t\_1}{0.607771387771 + z \cdot \left(11.9400905721 + z \cdot \left(31.4690115749 + z \cdot z\right)\right)}\right)\\ \mathbf{elif}\;t\_2 \leq \infty:\\ \;\;\;\;t\_2 + x\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(y, 3.13060547623, x\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1
         (+
          b
          (* z (+ a (* z (+ t (* z (+ 11.1667541262 (* z 3.13060547623)))))))))
        (t_2
         (/
          (* y t_1)
          (+
           (*
            z
            (+ (* z (+ (* z (+ z 15.234687407)) 31.4690115749)) 11.9400905721))
           0.607771387771))))
   (if (<= t_2 -2e+258)
     (*
      y
      (+
       (/ x y)
       (/
        t_1
        (+
         0.607771387771
         (* z (+ 11.9400905721 (* z (+ 31.4690115749 (* z z)))))))))
     (if (<= t_2 INFINITY) (+ t_2 x) (fma y 3.13060547623 x)))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = b + (z * (a + (z * (t + (z * (11.1667541262 + (z * 3.13060547623)))))));
	double t_2 = (y * t_1) / ((z * ((z * ((z * (z + 15.234687407)) + 31.4690115749)) + 11.9400905721)) + 0.607771387771);
	double tmp;
	if (t_2 <= -2e+258) {
		tmp = y * ((x / y) + (t_1 / (0.607771387771 + (z * (11.9400905721 + (z * (31.4690115749 + (z * z))))))));
	} else if (t_2 <= ((double) INFINITY)) {
		tmp = t_2 + x;
	} else {
		tmp = fma(y, 3.13060547623, x);
	}
	return tmp;
}
function code(x, y, z, t, a, b)
	t_1 = Float64(b + Float64(z * Float64(a + Float64(z * Float64(t + Float64(z * Float64(11.1667541262 + Float64(z * 3.13060547623))))))))
	t_2 = Float64(Float64(y * t_1) / Float64(Float64(z * Float64(Float64(z * Float64(Float64(z * Float64(z + 15.234687407)) + 31.4690115749)) + 11.9400905721)) + 0.607771387771))
	tmp = 0.0
	if (t_2 <= -2e+258)
		tmp = Float64(y * Float64(Float64(x / y) + Float64(t_1 / Float64(0.607771387771 + Float64(z * Float64(11.9400905721 + Float64(z * Float64(31.4690115749 + Float64(z * z)))))))));
	elseif (t_2 <= Inf)
		tmp = Float64(t_2 + x);
	else
		tmp = fma(y, 3.13060547623, x);
	end
	return tmp
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(b + N[(z * N[(a + N[(z * N[(t + N[(z * N[(11.1667541262 + N[(z * 3.13060547623), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(N[(y * t$95$1), $MachinePrecision] / 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]), $MachinePrecision]}, If[LessEqual[t$95$2, -2e+258], N[(y * N[(N[(x / y), $MachinePrecision] + N[(t$95$1 / N[(0.607771387771 + N[(z * N[(11.9400905721 + N[(z * N[(31.4690115749 + N[(z * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[t$95$2, Infinity], N[(t$95$2 + x), $MachinePrecision], N[(y * 3.13060547623 + x), $MachinePrecision]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(11.1667541262 + z \cdot 3.13060547623\right)\right)\right)\\
t_2 := \frac{y \cdot t\_1}{z \cdot \left(z \cdot \left(z \cdot \left(z + 15.234687407\right) + 31.4690115749\right) + 11.9400905721\right) + 0.607771387771}\\
\mathbf{if}\;t\_2 \leq -2 \cdot 10^{+258}:\\
\;\;\;\;y \cdot \left(\frac{x}{y} + \frac{t\_1}{0.607771387771 + z \cdot \left(11.9400905721 + z \cdot \left(31.4690115749 + z \cdot z\right)\right)}\right)\\

\mathbf{elif}\;t\_2 \leq \infty:\\
\;\;\;\;t\_2 + x\\

\mathbf{else}:\\
\;\;\;\;\mathsf{fma}\left(y, 3.13060547623, x\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 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))) < -2.00000000000000011e258

    1. Initial program 63.0%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Simplified95.0%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, \frac{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right)}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)}, x\right)} \]
    3. Add Preprocessing
    4. Taylor expanded in y around -inf 95.0%

      \[\leadsto \color{blue}{-1 \cdot \left(y \cdot \left(-1 \cdot \frac{x}{y} + -1 \cdot \frac{b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(11.1667541262 + 3.13060547623 \cdot z\right)\right)\right)}{0.607771387771 + z \cdot \left(11.9400905721 + z \cdot \left(31.4690115749 + z \cdot \left(15.234687407 + z\right)\right)\right)}\right)\right)} \]
    5. Taylor expanded in z around inf 95.0%

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

    if -2.00000000000000011e258 < (/.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 98.3%

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

    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. Simplified0.0%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, \frac{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right)}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)}, x\right)} \]
    3. Add Preprocessing
    4. Taylor expanded in z around inf 99.0%

      \[\leadsto \mathsf{fma}\left(y, \color{blue}{3.13060547623}, x\right) \]
  3. Recombined 3 regimes into one program.
  4. Final simplification98.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(11.1667541262 + z \cdot 3.13060547623\right)\right)\right)\right)}{z \cdot \left(z \cdot \left(z \cdot \left(z + 15.234687407\right) + 31.4690115749\right) + 11.9400905721\right) + 0.607771387771} \leq -2 \cdot 10^{+258}:\\ \;\;\;\;y \cdot \left(\frac{x}{y} + \frac{b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(11.1667541262 + z \cdot 3.13060547623\right)\right)\right)}{0.607771387771 + z \cdot \left(11.9400905721 + z \cdot \left(31.4690115749 + z \cdot z\right)\right)}\right)\\ \mathbf{elif}\;\frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(11.1667541262 + z \cdot 3.13060547623\right)\right)\right)\right)}{z \cdot \left(z \cdot \left(z \cdot \left(z + 15.234687407\right) + 31.4690115749\right) + 11.9400905721\right) + 0.607771387771} \leq \infty:\\ \;\;\;\;\frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(11.1667541262 + z \cdot 3.13060547623\right)\right)\right)\right)}{z \cdot \left(z \cdot \left(z \cdot \left(z + 15.234687407\right) + 31.4690115749\right) + 11.9400905721\right) + 0.607771387771} + x\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(y, 3.13060547623, x\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 3: 97.5% accurate, 0.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -7.2 \cdot 10^{+46} \lor \neg \left(z \leq 1.32 \cdot 10^{+38}\right):\\ \;\;\;\;\mathsf{fma}\left(y, 3.13060547623 + \frac{\frac{t + 457.9610022158428}{z} - 36.52704169880642}{z}, x\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(11.1667541262 + z \cdot 3.13060547623\right)\right)\right)\right)}{z \cdot \left(z \cdot \left(z \cdot \left(z + 15.234687407\right) + 31.4690115749\right) + 11.9400905721\right) + 0.607771387771} + x\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= z -7.2e+46) (not (<= z 1.32e+38)))
   (fma
    y
    (+ 3.13060547623 (/ (- (/ (+ t 457.9610022158428) z) 36.52704169880642) z))
    x)
   (+
    (/
     (*
      y
      (+
       b
       (* z (+ a (* z (+ t (* z (+ 11.1667541262 (* z 3.13060547623)))))))))
     (+
      (* z (+ (* z (+ (* z (+ z 15.234687407)) 31.4690115749)) 11.9400905721))
      0.607771387771))
    x)))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((z <= -7.2e+46) || !(z <= 1.32e+38)) {
		tmp = fma(y, (3.13060547623 + ((((t + 457.9610022158428) / z) - 36.52704169880642) / z)), x);
	} else {
		tmp = ((y * (b + (z * (a + (z * (t + (z * (11.1667541262 + (z * 3.13060547623))))))))) / ((z * ((z * ((z * (z + 15.234687407)) + 31.4690115749)) + 11.9400905721)) + 0.607771387771)) + x;
	}
	return tmp;
}
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((z <= -7.2e+46) || !(z <= 1.32e+38))
		tmp = fma(y, Float64(3.13060547623 + Float64(Float64(Float64(Float64(t + 457.9610022158428) / z) - 36.52704169880642) / z)), x);
	else
		tmp = Float64(Float64(Float64(y * Float64(b + Float64(z * Float64(a + Float64(z * Float64(t + Float64(z * Float64(11.1667541262 + Float64(z * 3.13060547623))))))))) / Float64(Float64(z * Float64(Float64(z * Float64(Float64(z * Float64(z + 15.234687407)) + 31.4690115749)) + 11.9400905721)) + 0.607771387771)) + x);
	end
	return tmp
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[z, -7.2e+46], N[Not[LessEqual[z, 1.32e+38]], $MachinePrecision]], N[(y * N[(3.13060547623 + N[(N[(N[(N[(t + 457.9610022158428), $MachinePrecision] / z), $MachinePrecision] - 36.52704169880642), $MachinePrecision] / z), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision], N[(N[(N[(y * N[(b + N[(z * N[(a + N[(z * N[(t + N[(z * N[(11.1667541262 + N[(z * 3.13060547623), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(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]), $MachinePrecision] + x), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -7.2 \cdot 10^{+46} \lor \neg \left(z \leq 1.32 \cdot 10^{+38}\right):\\
\;\;\;\;\mathsf{fma}\left(y, 3.13060547623 + \frac{\frac{t + 457.9610022158428}{z} - 36.52704169880642}{z}, x\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -7.1999999999999997e46 or 1.32e38 < z

    1. Initial program 4.9%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Simplified10.4%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, \frac{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right)}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)}, x\right)} \]
    3. Add Preprocessing
    4. Taylor expanded in z around -inf 99.9%

      \[\leadsto \mathsf{fma}\left(y, \color{blue}{3.13060547623 + -1 \cdot \frac{36.52704169880642 + -1 \cdot \frac{457.9610022158428 + t}{z}}{z}}, x\right) \]
    5. Step-by-step derivation
      1. mul-1-neg99.9%

        \[\leadsto \mathsf{fma}\left(y, 3.13060547623 + \color{blue}{\left(-\frac{36.52704169880642 + -1 \cdot \frac{457.9610022158428 + t}{z}}{z}\right)}, x\right) \]
      2. unsub-neg99.9%

        \[\leadsto \mathsf{fma}\left(y, \color{blue}{3.13060547623 - \frac{36.52704169880642 + -1 \cdot \frac{457.9610022158428 + t}{z}}{z}}, x\right) \]
      3. mul-1-neg99.9%

        \[\leadsto \mathsf{fma}\left(y, 3.13060547623 - \frac{36.52704169880642 + \color{blue}{\left(-\frac{457.9610022158428 + t}{z}\right)}}{z}, x\right) \]
      4. unsub-neg99.9%

        \[\leadsto \mathsf{fma}\left(y, 3.13060547623 - \frac{\color{blue}{36.52704169880642 - \frac{457.9610022158428 + t}{z}}}{z}, x\right) \]
      5. +-commutative99.9%

        \[\leadsto \mathsf{fma}\left(y, 3.13060547623 - \frac{36.52704169880642 - \frac{\color{blue}{t + 457.9610022158428}}{z}}{z}, x\right) \]
    6. Simplified99.9%

      \[\leadsto \mathsf{fma}\left(y, \color{blue}{3.13060547623 - \frac{36.52704169880642 - \frac{t + 457.9610022158428}{z}}{z}}, x\right) \]

    if -7.1999999999999997e46 < z < 1.32e38

    1. Initial program 98.4%

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

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -7.2 \cdot 10^{+46} \lor \neg \left(z \leq 1.32 \cdot 10^{+38}\right):\\ \;\;\;\;\mathsf{fma}\left(y, 3.13060547623 + \frac{\frac{t + 457.9610022158428}{z} - 36.52704169880642}{z}, x\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(11.1667541262 + z \cdot 3.13060547623\right)\right)\right)\right)}{z \cdot \left(z \cdot \left(z \cdot \left(z + 15.234687407\right) + 31.4690115749\right) + 11.9400905721\right) + 0.607771387771} + x\\ \end{array} \]
  5. Add Preprocessing

Alternative 4: 95.9% accurate, 0.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(11.1667541262 + z \cdot 3.13060547623\right)\right)\right)\\ t_2 := \frac{y \cdot t\_1}{z \cdot \left(z \cdot \left(z \cdot \left(z + 15.234687407\right) + 31.4690115749\right) + 11.9400905721\right) + 0.607771387771}\\ \mathbf{if}\;t\_2 \leq -2 \cdot 10^{+258}:\\ \;\;\;\;y \cdot \left(\frac{x}{y} + \frac{t\_1}{0.607771387771 + z \cdot \left(11.9400905721 + z \cdot \left(31.4690115749 + z \cdot z\right)\right)}\right)\\ \mathbf{elif}\;t\_2 \leq \infty:\\ \;\;\;\;t\_2 + x\\ \mathbf{else}:\\ \;\;\;\;x + y \cdot 3.13060547623\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1
         (+
          b
          (* z (+ a (* z (+ t (* z (+ 11.1667541262 (* z 3.13060547623)))))))))
        (t_2
         (/
          (* y t_1)
          (+
           (*
            z
            (+ (* z (+ (* z (+ z 15.234687407)) 31.4690115749)) 11.9400905721))
           0.607771387771))))
   (if (<= t_2 -2e+258)
     (*
      y
      (+
       (/ x y)
       (/
        t_1
        (+
         0.607771387771
         (* z (+ 11.9400905721 (* z (+ 31.4690115749 (* z z)))))))))
     (if (<= t_2 INFINITY) (+ t_2 x) (+ x (* y 3.13060547623))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = b + (z * (a + (z * (t + (z * (11.1667541262 + (z * 3.13060547623)))))));
	double t_2 = (y * t_1) / ((z * ((z * ((z * (z + 15.234687407)) + 31.4690115749)) + 11.9400905721)) + 0.607771387771);
	double tmp;
	if (t_2 <= -2e+258) {
		tmp = y * ((x / y) + (t_1 / (0.607771387771 + (z * (11.9400905721 + (z * (31.4690115749 + (z * z))))))));
	} else if (t_2 <= ((double) INFINITY)) {
		tmp = t_2 + x;
	} 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 = b + (z * (a + (z * (t + (z * (11.1667541262 + (z * 3.13060547623)))))));
	double t_2 = (y * t_1) / ((z * ((z * ((z * (z + 15.234687407)) + 31.4690115749)) + 11.9400905721)) + 0.607771387771);
	double tmp;
	if (t_2 <= -2e+258) {
		tmp = y * ((x / y) + (t_1 / (0.607771387771 + (z * (11.9400905721 + (z * (31.4690115749 + (z * z))))))));
	} else if (t_2 <= Double.POSITIVE_INFINITY) {
		tmp = t_2 + x;
	} else {
		tmp = x + (y * 3.13060547623);
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = b + (z * (a + (z * (t + (z * (11.1667541262 + (z * 3.13060547623)))))))
	t_2 = (y * t_1) / ((z * ((z * ((z * (z + 15.234687407)) + 31.4690115749)) + 11.9400905721)) + 0.607771387771)
	tmp = 0
	if t_2 <= -2e+258:
		tmp = y * ((x / y) + (t_1 / (0.607771387771 + (z * (11.9400905721 + (z * (31.4690115749 + (z * z))))))))
	elif t_2 <= math.inf:
		tmp = t_2 + x
	else:
		tmp = x + (y * 3.13060547623)
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(b + Float64(z * Float64(a + Float64(z * Float64(t + Float64(z * Float64(11.1667541262 + Float64(z * 3.13060547623))))))))
	t_2 = Float64(Float64(y * t_1) / Float64(Float64(z * Float64(Float64(z * Float64(Float64(z * Float64(z + 15.234687407)) + 31.4690115749)) + 11.9400905721)) + 0.607771387771))
	tmp = 0.0
	if (t_2 <= -2e+258)
		tmp = Float64(y * Float64(Float64(x / y) + Float64(t_1 / Float64(0.607771387771 + Float64(z * Float64(11.9400905721 + Float64(z * Float64(31.4690115749 + Float64(z * z)))))))));
	elseif (t_2 <= Inf)
		tmp = Float64(t_2 + x);
	else
		tmp = Float64(x + Float64(y * 3.13060547623));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = b + (z * (a + (z * (t + (z * (11.1667541262 + (z * 3.13060547623)))))));
	t_2 = (y * t_1) / ((z * ((z * ((z * (z + 15.234687407)) + 31.4690115749)) + 11.9400905721)) + 0.607771387771);
	tmp = 0.0;
	if (t_2 <= -2e+258)
		tmp = y * ((x / y) + (t_1 / (0.607771387771 + (z * (11.9400905721 + (z * (31.4690115749 + (z * z))))))));
	elseif (t_2 <= Inf)
		tmp = t_2 + x;
	else
		tmp = x + (y * 3.13060547623);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(b + N[(z * N[(a + N[(z * N[(t + N[(z * N[(11.1667541262 + N[(z * 3.13060547623), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(N[(y * t$95$1), $MachinePrecision] / 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]), $MachinePrecision]}, If[LessEqual[t$95$2, -2e+258], N[(y * N[(N[(x / y), $MachinePrecision] + N[(t$95$1 / N[(0.607771387771 + N[(z * N[(11.9400905721 + N[(z * N[(31.4690115749 + N[(z * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[t$95$2, Infinity], N[(t$95$2 + x), $MachinePrecision], N[(x + N[(y * 3.13060547623), $MachinePrecision]), $MachinePrecision]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(11.1667541262 + z \cdot 3.13060547623\right)\right)\right)\\
t_2 := \frac{y \cdot t\_1}{z \cdot \left(z \cdot \left(z \cdot \left(z + 15.234687407\right) + 31.4690115749\right) + 11.9400905721\right) + 0.607771387771}\\
\mathbf{if}\;t\_2 \leq -2 \cdot 10^{+258}:\\
\;\;\;\;y \cdot \left(\frac{x}{y} + \frac{t\_1}{0.607771387771 + z \cdot \left(11.9400905721 + z \cdot \left(31.4690115749 + z \cdot z\right)\right)}\right)\\

\mathbf{elif}\;t\_2 \leq \infty:\\
\;\;\;\;t\_2 + x\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 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))) < -2.00000000000000011e258

    1. Initial program 63.0%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Simplified95.0%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, \frac{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right)}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)}, x\right)} \]
    3. Add Preprocessing
    4. Taylor expanded in y around -inf 95.0%

      \[\leadsto \color{blue}{-1 \cdot \left(y \cdot \left(-1 \cdot \frac{x}{y} + -1 \cdot \frac{b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(11.1667541262 + 3.13060547623 \cdot z\right)\right)\right)}{0.607771387771 + z \cdot \left(11.9400905721 + z \cdot \left(31.4690115749 + z \cdot \left(15.234687407 + z\right)\right)\right)}\right)\right)} \]
    5. Taylor expanded in z around inf 95.0%

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

    if -2.00000000000000011e258 < (/.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 98.3%

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

    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. Simplified0.0%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, \frac{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right)}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)}, x\right)} \]
    3. Add Preprocessing
    4. Taylor expanded in z around inf 99.0%

      \[\leadsto \color{blue}{x + 3.13060547623 \cdot y} \]
    5. Step-by-step derivation
      1. +-commutative99.0%

        \[\leadsto \color{blue}{3.13060547623 \cdot y + x} \]
    6. Simplified99.0%

      \[\leadsto \color{blue}{3.13060547623 \cdot y + x} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification98.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(11.1667541262 + z \cdot 3.13060547623\right)\right)\right)\right)}{z \cdot \left(z \cdot \left(z \cdot \left(z + 15.234687407\right) + 31.4690115749\right) + 11.9400905721\right) + 0.607771387771} \leq -2 \cdot 10^{+258}:\\ \;\;\;\;y \cdot \left(\frac{x}{y} + \frac{b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(11.1667541262 + z \cdot 3.13060547623\right)\right)\right)}{0.607771387771 + z \cdot \left(11.9400905721 + z \cdot \left(31.4690115749 + z \cdot z\right)\right)}\right)\\ \mathbf{elif}\;\frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(11.1667541262 + z \cdot 3.13060547623\right)\right)\right)\right)}{z \cdot \left(z \cdot \left(z \cdot \left(z + 15.234687407\right) + 31.4690115749\right) + 11.9400905721\right) + 0.607771387771} \leq \infty:\\ \;\;\;\;\frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(11.1667541262 + z \cdot 3.13060547623\right)\right)\right)\right)}{z \cdot \left(z \cdot \left(z \cdot \left(z + 15.234687407\right) + 31.4690115749\right) + 11.9400905721\right) + 0.607771387771} + x\\ \mathbf{else}:\\ \;\;\;\;x + y \cdot 3.13060547623\\ \end{array} \]
  5. Add Preprocessing

Alternative 5: 96.7% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -7.8 \cdot 10^{+46} \lor \neg \left(z \leq 1.08 \cdot 10^{+40}\right):\\ \;\;\;\;x + \left(y \cdot 3.13060547623 - \frac{y \cdot -11.1667541262 - y \cdot \frac{t + -98.5170599679272}{z}}{z}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(11.1667541262 + z \cdot 3.13060547623\right)\right)\right)\right)}{z \cdot \left(z \cdot \left(z \cdot \left(z + 15.234687407\right) + 31.4690115749\right) + 11.9400905721\right) + 0.607771387771} + x\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= z -7.8e+46) (not (<= z 1.08e+40)))
   (+
    x
    (-
     (* y 3.13060547623)
     (/ (- (* y -11.1667541262) (* y (/ (+ t -98.5170599679272) z))) z)))
   (+
    (/
     (*
      y
      (+
       b
       (* z (+ a (* z (+ t (* z (+ 11.1667541262 (* z 3.13060547623)))))))))
     (+
      (* z (+ (* z (+ (* z (+ z 15.234687407)) 31.4690115749)) 11.9400905721))
      0.607771387771))
    x)))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((z <= -7.8e+46) || !(z <= 1.08e+40)) {
		tmp = x + ((y * 3.13060547623) - (((y * -11.1667541262) - (y * ((t + -98.5170599679272) / z))) / z));
	} else {
		tmp = ((y * (b + (z * (a + (z * (t + (z * (11.1667541262 + (z * 3.13060547623))))))))) / ((z * ((z * ((z * (z + 15.234687407)) + 31.4690115749)) + 11.9400905721)) + 0.607771387771)) + 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 ((z <= (-7.8d+46)) .or. (.not. (z <= 1.08d+40))) then
        tmp = x + ((y * 3.13060547623d0) - (((y * (-11.1667541262d0)) - (y * ((t + (-98.5170599679272d0)) / z))) / z))
    else
        tmp = ((y * (b + (z * (a + (z * (t + (z * (11.1667541262d0 + (z * 3.13060547623d0))))))))) / ((z * ((z * ((z * (z + 15.234687407d0)) + 31.4690115749d0)) + 11.9400905721d0)) + 0.607771387771d0)) + 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 ((z <= -7.8e+46) || !(z <= 1.08e+40)) {
		tmp = x + ((y * 3.13060547623) - (((y * -11.1667541262) - (y * ((t + -98.5170599679272) / z))) / z));
	} else {
		tmp = ((y * (b + (z * (a + (z * (t + (z * (11.1667541262 + (z * 3.13060547623))))))))) / ((z * ((z * ((z * (z + 15.234687407)) + 31.4690115749)) + 11.9400905721)) + 0.607771387771)) + x;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (z <= -7.8e+46) or not (z <= 1.08e+40):
		tmp = x + ((y * 3.13060547623) - (((y * -11.1667541262) - (y * ((t + -98.5170599679272) / z))) / z))
	else:
		tmp = ((y * (b + (z * (a + (z * (t + (z * (11.1667541262 + (z * 3.13060547623))))))))) / ((z * ((z * ((z * (z + 15.234687407)) + 31.4690115749)) + 11.9400905721)) + 0.607771387771)) + x
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((z <= -7.8e+46) || !(z <= 1.08e+40))
		tmp = Float64(x + Float64(Float64(y * 3.13060547623) - Float64(Float64(Float64(y * -11.1667541262) - Float64(y * Float64(Float64(t + -98.5170599679272) / z))) / z)));
	else
		tmp = Float64(Float64(Float64(y * Float64(b + Float64(z * Float64(a + Float64(z * Float64(t + Float64(z * Float64(11.1667541262 + Float64(z * 3.13060547623))))))))) / Float64(Float64(z * Float64(Float64(z * Float64(Float64(z * Float64(z + 15.234687407)) + 31.4690115749)) + 11.9400905721)) + 0.607771387771)) + x);
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((z <= -7.8e+46) || ~((z <= 1.08e+40)))
		tmp = x + ((y * 3.13060547623) - (((y * -11.1667541262) - (y * ((t + -98.5170599679272) / z))) / z));
	else
		tmp = ((y * (b + (z * (a + (z * (t + (z * (11.1667541262 + (z * 3.13060547623))))))))) / ((z * ((z * ((z * (z + 15.234687407)) + 31.4690115749)) + 11.9400905721)) + 0.607771387771)) + x;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[z, -7.8e+46], N[Not[LessEqual[z, 1.08e+40]], $MachinePrecision]], N[(x + N[(N[(y * 3.13060547623), $MachinePrecision] - N[(N[(N[(y * -11.1667541262), $MachinePrecision] - N[(y * N[(N[(t + -98.5170599679272), $MachinePrecision] / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(N[(y * N[(b + N[(z * N[(a + N[(z * N[(t + N[(z * N[(11.1667541262 + N[(z * 3.13060547623), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(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]), $MachinePrecision] + x), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -7.8 \cdot 10^{+46} \lor \neg \left(z \leq 1.08 \cdot 10^{+40}\right):\\
\;\;\;\;x + \left(y \cdot 3.13060547623 - \frac{y \cdot -11.1667541262 - y \cdot \frac{t + -98.5170599679272}{z}}{z}\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -7.7999999999999999e46 or 1.08000000000000001e40 < z

    1. Initial program 4.9%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Add Preprocessing
    3. Taylor expanded in z around inf 4.9%

      \[\leadsto x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\color{blue}{z} \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    4. Taylor expanded in z around -inf 89.1%

      \[\leadsto x + \color{blue}{\left(-1 \cdot \frac{-11.1667541262 \cdot y + -1 \cdot \frac{t \cdot y - 98.5170599679272 \cdot y}{z}}{z} + 3.13060547623 \cdot y\right)} \]
    5. Step-by-step derivation
      1. +-commutative89.1%

        \[\leadsto x + \color{blue}{\left(3.13060547623 \cdot y + -1 \cdot \frac{-11.1667541262 \cdot y + -1 \cdot \frac{t \cdot y - 98.5170599679272 \cdot y}{z}}{z}\right)} \]
      2. mul-1-neg89.1%

        \[\leadsto x + \left(3.13060547623 \cdot y + \color{blue}{\left(-\frac{-11.1667541262 \cdot y + -1 \cdot \frac{t \cdot y - 98.5170599679272 \cdot y}{z}}{z}\right)}\right) \]
      3. unsub-neg89.1%

        \[\leadsto x + \color{blue}{\left(3.13060547623 \cdot y - \frac{-11.1667541262 \cdot y + -1 \cdot \frac{t \cdot y - 98.5170599679272 \cdot y}{z}}{z}\right)} \]
      4. mul-1-neg89.1%

        \[\leadsto x + \left(3.13060547623 \cdot y - \frac{-11.1667541262 \cdot y + \color{blue}{\left(-\frac{t \cdot y - 98.5170599679272 \cdot y}{z}\right)}}{z}\right) \]
      5. unsub-neg89.1%

        \[\leadsto x + \left(3.13060547623 \cdot y - \frac{\color{blue}{-11.1667541262 \cdot y - \frac{t \cdot y - 98.5170599679272 \cdot y}{z}}}{z}\right) \]
      6. *-commutative89.1%

        \[\leadsto x + \left(3.13060547623 \cdot y - \frac{\color{blue}{y \cdot -11.1667541262} - \frac{t \cdot y - 98.5170599679272 \cdot y}{z}}{z}\right) \]
      7. distribute-rgt-out--89.1%

        \[\leadsto x + \left(3.13060547623 \cdot y - \frac{y \cdot -11.1667541262 - \frac{\color{blue}{y \cdot \left(t - 98.5170599679272\right)}}{z}}{z}\right) \]
      8. associate-/l*97.5%

        \[\leadsto x + \left(3.13060547623 \cdot y - \frac{y \cdot -11.1667541262 - \color{blue}{y \cdot \frac{t - 98.5170599679272}{z}}}{z}\right) \]
      9. sub-neg97.5%

        \[\leadsto x + \left(3.13060547623 \cdot y - \frac{y \cdot -11.1667541262 - y \cdot \frac{\color{blue}{t + \left(-98.5170599679272\right)}}{z}}{z}\right) \]
      10. metadata-eval97.5%

        \[\leadsto x + \left(3.13060547623 \cdot y - \frac{y \cdot -11.1667541262 - y \cdot \frac{t + \color{blue}{-98.5170599679272}}{z}}{z}\right) \]
    6. Simplified97.5%

      \[\leadsto x + \color{blue}{\left(3.13060547623 \cdot y - \frac{y \cdot -11.1667541262 - y \cdot \frac{t + -98.5170599679272}{z}}{z}\right)} \]

    if -7.7999999999999999e46 < z < 1.08000000000000001e40

    1. Initial program 98.4%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Add Preprocessing
  3. Recombined 2 regimes into one program.
  4. Final simplification98.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -7.8 \cdot 10^{+46} \lor \neg \left(z \leq 1.08 \cdot 10^{+40}\right):\\ \;\;\;\;x + \left(y \cdot 3.13060547623 - \frac{y \cdot -11.1667541262 - y \cdot \frac{t + -98.5170599679272}{z}}{z}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot \left(11.1667541262 + z \cdot 3.13060547623\right)\right)\right)\right)}{z \cdot \left(z \cdot \left(z \cdot \left(z + 15.234687407\right) + 31.4690115749\right) + 11.9400905721\right) + 0.607771387771} + x\\ \end{array} \]
  5. Add Preprocessing

Alternative 6: 96.2% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -3.4 \cdot 10^{+21} \lor \neg \left(z \leq 5.2 \cdot 10^{+37}\right):\\ \;\;\;\;x + \left(y \cdot 3.13060547623 - \frac{y \cdot -11.1667541262 - y \cdot \frac{t + -98.5170599679272}{z}}{z}\right)\\ \mathbf{else}:\\ \;\;\;\;x + \frac{y \cdot \left(b + z \cdot \left(a + z \cdot t\right)\right)}{z \cdot \left(z \cdot \left(z \cdot \left(z + 15.234687407\right) + 31.4690115749\right) + 11.9400905721\right) + 0.607771387771}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= z -3.4e+21) (not (<= z 5.2e+37)))
   (+
    x
    (-
     (* y 3.13060547623)
     (/ (- (* y -11.1667541262) (* y (/ (+ t -98.5170599679272) z))) z)))
   (+
    x
    (/
     (* y (+ b (* z (+ a (* z t)))))
     (+
      (* z (+ (* z (+ (* z (+ z 15.234687407)) 31.4690115749)) 11.9400905721))
      0.607771387771)))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((z <= -3.4e+21) || !(z <= 5.2e+37)) {
		tmp = x + ((y * 3.13060547623) - (((y * -11.1667541262) - (y * ((t + -98.5170599679272) / z))) / z));
	} else {
		tmp = x + ((y * (b + (z * (a + (z * t))))) / ((z * ((z * ((z * (z + 15.234687407)) + 31.4690115749)) + 11.9400905721)) + 0.607771387771));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if ((z <= (-3.4d+21)) .or. (.not. (z <= 5.2d+37))) then
        tmp = x + ((y * 3.13060547623d0) - (((y * (-11.1667541262d0)) - (y * ((t + (-98.5170599679272d0)) / z))) / z))
    else
        tmp = x + ((y * (b + (z * (a + (z * t))))) / ((z * ((z * ((z * (z + 15.234687407d0)) + 31.4690115749d0)) + 11.9400905721d0)) + 0.607771387771d0))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((z <= -3.4e+21) || !(z <= 5.2e+37)) {
		tmp = x + ((y * 3.13060547623) - (((y * -11.1667541262) - (y * ((t + -98.5170599679272) / z))) / z));
	} else {
		tmp = x + ((y * (b + (z * (a + (z * t))))) / ((z * ((z * ((z * (z + 15.234687407)) + 31.4690115749)) + 11.9400905721)) + 0.607771387771));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (z <= -3.4e+21) or not (z <= 5.2e+37):
		tmp = x + ((y * 3.13060547623) - (((y * -11.1667541262) - (y * ((t + -98.5170599679272) / z))) / z))
	else:
		tmp = x + ((y * (b + (z * (a + (z * t))))) / ((z * ((z * ((z * (z + 15.234687407)) + 31.4690115749)) + 11.9400905721)) + 0.607771387771))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((z <= -3.4e+21) || !(z <= 5.2e+37))
		tmp = Float64(x + Float64(Float64(y * 3.13060547623) - Float64(Float64(Float64(y * -11.1667541262) - Float64(y * Float64(Float64(t + -98.5170599679272) / z))) / z)));
	else
		tmp = Float64(x + Float64(Float64(y * Float64(b + Float64(z * Float64(a + Float64(z * t))))) / Float64(Float64(z * Float64(Float64(z * Float64(Float64(z * Float64(z + 15.234687407)) + 31.4690115749)) + 11.9400905721)) + 0.607771387771)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((z <= -3.4e+21) || ~((z <= 5.2e+37)))
		tmp = x + ((y * 3.13060547623) - (((y * -11.1667541262) - (y * ((t + -98.5170599679272) / z))) / z));
	else
		tmp = x + ((y * (b + (z * (a + (z * t))))) / ((z * ((z * ((z * (z + 15.234687407)) + 31.4690115749)) + 11.9400905721)) + 0.607771387771));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[z, -3.4e+21], N[Not[LessEqual[z, 5.2e+37]], $MachinePrecision]], N[(x + N[(N[(y * 3.13060547623), $MachinePrecision] - N[(N[(N[(y * -11.1667541262), $MachinePrecision] - N[(y * N[(N[(t + -98.5170599679272), $MachinePrecision] / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + N[(N[(y * N[(b + N[(z * N[(a + N[(z * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / 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]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -3.4 \cdot 10^{+21} \lor \neg \left(z \leq 5.2 \cdot 10^{+37}\right):\\
\;\;\;\;x + \left(y \cdot 3.13060547623 - \frac{y \cdot -11.1667541262 - y \cdot \frac{t + -98.5170599679272}{z}}{z}\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -3.4e21 or 5.1999999999999998e37 < z

    1. Initial program 10.3%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Add Preprocessing
    3. Taylor expanded in z around inf 10.3%

      \[\leadsto x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\color{blue}{z} \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    4. Taylor expanded in z around -inf 88.5%

      \[\leadsto x + \color{blue}{\left(-1 \cdot \frac{-11.1667541262 \cdot y + -1 \cdot \frac{t \cdot y - 98.5170599679272 \cdot y}{z}}{z} + 3.13060547623 \cdot y\right)} \]
    5. Step-by-step derivation
      1. +-commutative88.5%

        \[\leadsto x + \color{blue}{\left(3.13060547623 \cdot y + -1 \cdot \frac{-11.1667541262 \cdot y + -1 \cdot \frac{t \cdot y - 98.5170599679272 \cdot y}{z}}{z}\right)} \]
      2. mul-1-neg88.5%

        \[\leadsto x + \left(3.13060547623 \cdot y + \color{blue}{\left(-\frac{-11.1667541262 \cdot y + -1 \cdot \frac{t \cdot y - 98.5170599679272 \cdot y}{z}}{z}\right)}\right) \]
      3. unsub-neg88.5%

        \[\leadsto x + \color{blue}{\left(3.13060547623 \cdot y - \frac{-11.1667541262 \cdot y + -1 \cdot \frac{t \cdot y - 98.5170599679272 \cdot y}{z}}{z}\right)} \]
      4. mul-1-neg88.5%

        \[\leadsto x + \left(3.13060547623 \cdot y - \frac{-11.1667541262 \cdot y + \color{blue}{\left(-\frac{t \cdot y - 98.5170599679272 \cdot y}{z}\right)}}{z}\right) \]
      5. unsub-neg88.5%

        \[\leadsto x + \left(3.13060547623 \cdot y - \frac{\color{blue}{-11.1667541262 \cdot y - \frac{t \cdot y - 98.5170599679272 \cdot y}{z}}}{z}\right) \]
      6. *-commutative88.5%

        \[\leadsto x + \left(3.13060547623 \cdot y - \frac{\color{blue}{y \cdot -11.1667541262} - \frac{t \cdot y - 98.5170599679272 \cdot y}{z}}{z}\right) \]
      7. distribute-rgt-out--88.5%

        \[\leadsto x + \left(3.13060547623 \cdot y - \frac{y \cdot -11.1667541262 - \frac{\color{blue}{y \cdot \left(t - 98.5170599679272\right)}}{z}}{z}\right) \]
      8. associate-/l*96.4%

        \[\leadsto x + \left(3.13060547623 \cdot y - \frac{y \cdot -11.1667541262 - \color{blue}{y \cdot \frac{t - 98.5170599679272}{z}}}{z}\right) \]
      9. sub-neg96.4%

        \[\leadsto x + \left(3.13060547623 \cdot y - \frac{y \cdot -11.1667541262 - y \cdot \frac{\color{blue}{t + \left(-98.5170599679272\right)}}{z}}{z}\right) \]
      10. metadata-eval96.4%

        \[\leadsto x + \left(3.13060547623 \cdot y - \frac{y \cdot -11.1667541262 - y \cdot \frac{t + \color{blue}{-98.5170599679272}}{z}}{z}\right) \]
    6. Simplified96.4%

      \[\leadsto x + \color{blue}{\left(3.13060547623 \cdot y - \frac{y \cdot -11.1667541262 - y \cdot \frac{t + -98.5170599679272}{z}}{z}\right)} \]

    if -3.4e21 < z < 5.1999999999999998e37

    1. Initial program 99.0%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Add Preprocessing
    3. Taylor expanded in z around 0 98.6%

      \[\leadsto x + \frac{y \cdot \left(\left(\left(\color{blue}{11.1667541262 \cdot z} + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    4. Step-by-step derivation
      1. *-commutative98.6%

        \[\leadsto x + \frac{y \cdot \left(\left(\left(\color{blue}{z \cdot 11.1667541262} + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    5. Simplified98.6%

      \[\leadsto x + \frac{y \cdot \left(\left(\left(\color{blue}{z \cdot 11.1667541262} + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    6. Taylor expanded in z around 0 98.6%

      \[\leadsto x + \frac{y \cdot \left(\left(\color{blue}{t \cdot z} + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    7. Step-by-step derivation
      1. *-commutative98.6%

        \[\leadsto x + \frac{y \cdot \left(\left(\color{blue}{z \cdot t} + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    8. Simplified98.6%

      \[\leadsto x + \frac{y \cdot \left(\left(\color{blue}{z \cdot t} + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification97.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -3.4 \cdot 10^{+21} \lor \neg \left(z \leq 5.2 \cdot 10^{+37}\right):\\ \;\;\;\;x + \left(y \cdot 3.13060547623 - \frac{y \cdot -11.1667541262 - y \cdot \frac{t + -98.5170599679272}{z}}{z}\right)\\ \mathbf{else}:\\ \;\;\;\;x + \frac{y \cdot \left(b + z \cdot \left(a + z \cdot t\right)\right)}{z \cdot \left(z \cdot \left(z \cdot \left(z + 15.234687407\right) + 31.4690115749\right) + 11.9400905721\right) + 0.607771387771}\\ \end{array} \]
  5. Add Preprocessing

Alternative 7: 95.0% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -3.3 \cdot 10^{+21} \lor \neg \left(z \leq 5.2 \cdot 10^{+37}\right):\\ \;\;\;\;x + \left(y \cdot 3.13060547623 - \frac{y \cdot -11.1667541262 - y \cdot \frac{t + -98.5170599679272}{z}}{z}\right)\\ \mathbf{else}:\\ \;\;\;\;x + \frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot 11.1667541262\right)\right)\right)}{0.607771387771 + z \cdot \left(11.9400905721 + z \cdot 31.4690115749\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= z -3.3e+21) (not (<= z 5.2e+37)))
   (+
    x
    (-
     (* y 3.13060547623)
     (/ (- (* y -11.1667541262) (* y (/ (+ t -98.5170599679272) z))) z)))
   (+
    x
    (/
     (* y (+ b (* z (+ a (* z (+ t (* z 11.1667541262)))))))
     (+ 0.607771387771 (* z (+ 11.9400905721 (* z 31.4690115749))))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((z <= -3.3e+21) || !(z <= 5.2e+37)) {
		tmp = x + ((y * 3.13060547623) - (((y * -11.1667541262) - (y * ((t + -98.5170599679272) / z))) / z));
	} else {
		tmp = x + ((y * (b + (z * (a + (z * (t + (z * 11.1667541262))))))) / (0.607771387771 + (z * (11.9400905721 + (z * 31.4690115749)))));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if ((z <= (-3.3d+21)) .or. (.not. (z <= 5.2d+37))) then
        tmp = x + ((y * 3.13060547623d0) - (((y * (-11.1667541262d0)) - (y * ((t + (-98.5170599679272d0)) / z))) / z))
    else
        tmp = x + ((y * (b + (z * (a + (z * (t + (z * 11.1667541262d0))))))) / (0.607771387771d0 + (z * (11.9400905721d0 + (z * 31.4690115749d0)))))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((z <= -3.3e+21) || !(z <= 5.2e+37)) {
		tmp = x + ((y * 3.13060547623) - (((y * -11.1667541262) - (y * ((t + -98.5170599679272) / z))) / z));
	} else {
		tmp = x + ((y * (b + (z * (a + (z * (t + (z * 11.1667541262))))))) / (0.607771387771 + (z * (11.9400905721 + (z * 31.4690115749)))));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (z <= -3.3e+21) or not (z <= 5.2e+37):
		tmp = x + ((y * 3.13060547623) - (((y * -11.1667541262) - (y * ((t + -98.5170599679272) / z))) / z))
	else:
		tmp = x + ((y * (b + (z * (a + (z * (t + (z * 11.1667541262))))))) / (0.607771387771 + (z * (11.9400905721 + (z * 31.4690115749)))))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((z <= -3.3e+21) || !(z <= 5.2e+37))
		tmp = Float64(x + Float64(Float64(y * 3.13060547623) - Float64(Float64(Float64(y * -11.1667541262) - Float64(y * Float64(Float64(t + -98.5170599679272) / z))) / z)));
	else
		tmp = Float64(x + Float64(Float64(y * Float64(b + Float64(z * Float64(a + Float64(z * Float64(t + Float64(z * 11.1667541262))))))) / Float64(0.607771387771 + Float64(z * Float64(11.9400905721 + Float64(z * 31.4690115749))))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((z <= -3.3e+21) || ~((z <= 5.2e+37)))
		tmp = x + ((y * 3.13060547623) - (((y * -11.1667541262) - (y * ((t + -98.5170599679272) / z))) / z));
	else
		tmp = x + ((y * (b + (z * (a + (z * (t + (z * 11.1667541262))))))) / (0.607771387771 + (z * (11.9400905721 + (z * 31.4690115749)))));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[z, -3.3e+21], N[Not[LessEqual[z, 5.2e+37]], $MachinePrecision]], N[(x + N[(N[(y * 3.13060547623), $MachinePrecision] - N[(N[(N[(y * -11.1667541262), $MachinePrecision] - N[(y * N[(N[(t + -98.5170599679272), $MachinePrecision] / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + N[(N[(y * N[(b + N[(z * N[(a + N[(z * N[(t + N[(z * 11.1667541262), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(0.607771387771 + N[(z * N[(11.9400905721 + N[(z * 31.4690115749), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -3.3 \cdot 10^{+21} \lor \neg \left(z \leq 5.2 \cdot 10^{+37}\right):\\
\;\;\;\;x + \left(y \cdot 3.13060547623 - \frac{y \cdot -11.1667541262 - y \cdot \frac{t + -98.5170599679272}{z}}{z}\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -3.3e21 or 5.1999999999999998e37 < z

    1. Initial program 10.3%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Add Preprocessing
    3. Taylor expanded in z around inf 10.3%

      \[\leadsto x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\color{blue}{z} \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    4. Taylor expanded in z around -inf 88.5%

      \[\leadsto x + \color{blue}{\left(-1 \cdot \frac{-11.1667541262 \cdot y + -1 \cdot \frac{t \cdot y - 98.5170599679272 \cdot y}{z}}{z} + 3.13060547623 \cdot y\right)} \]
    5. Step-by-step derivation
      1. +-commutative88.5%

        \[\leadsto x + \color{blue}{\left(3.13060547623 \cdot y + -1 \cdot \frac{-11.1667541262 \cdot y + -1 \cdot \frac{t \cdot y - 98.5170599679272 \cdot y}{z}}{z}\right)} \]
      2. mul-1-neg88.5%

        \[\leadsto x + \left(3.13060547623 \cdot y + \color{blue}{\left(-\frac{-11.1667541262 \cdot y + -1 \cdot \frac{t \cdot y - 98.5170599679272 \cdot y}{z}}{z}\right)}\right) \]
      3. unsub-neg88.5%

        \[\leadsto x + \color{blue}{\left(3.13060547623 \cdot y - \frac{-11.1667541262 \cdot y + -1 \cdot \frac{t \cdot y - 98.5170599679272 \cdot y}{z}}{z}\right)} \]
      4. mul-1-neg88.5%

        \[\leadsto x + \left(3.13060547623 \cdot y - \frac{-11.1667541262 \cdot y + \color{blue}{\left(-\frac{t \cdot y - 98.5170599679272 \cdot y}{z}\right)}}{z}\right) \]
      5. unsub-neg88.5%

        \[\leadsto x + \left(3.13060547623 \cdot y - \frac{\color{blue}{-11.1667541262 \cdot y - \frac{t \cdot y - 98.5170599679272 \cdot y}{z}}}{z}\right) \]
      6. *-commutative88.5%

        \[\leadsto x + \left(3.13060547623 \cdot y - \frac{\color{blue}{y \cdot -11.1667541262} - \frac{t \cdot y - 98.5170599679272 \cdot y}{z}}{z}\right) \]
      7. distribute-rgt-out--88.5%

        \[\leadsto x + \left(3.13060547623 \cdot y - \frac{y \cdot -11.1667541262 - \frac{\color{blue}{y \cdot \left(t - 98.5170599679272\right)}}{z}}{z}\right) \]
      8. associate-/l*96.4%

        \[\leadsto x + \left(3.13060547623 \cdot y - \frac{y \cdot -11.1667541262 - \color{blue}{y \cdot \frac{t - 98.5170599679272}{z}}}{z}\right) \]
      9. sub-neg96.4%

        \[\leadsto x + \left(3.13060547623 \cdot y - \frac{y \cdot -11.1667541262 - y \cdot \frac{\color{blue}{t + \left(-98.5170599679272\right)}}{z}}{z}\right) \]
      10. metadata-eval96.4%

        \[\leadsto x + \left(3.13060547623 \cdot y - \frac{y \cdot -11.1667541262 - y \cdot \frac{t + \color{blue}{-98.5170599679272}}{z}}{z}\right) \]
    6. Simplified96.4%

      \[\leadsto x + \color{blue}{\left(3.13060547623 \cdot y - \frac{y \cdot -11.1667541262 - y \cdot \frac{t + -98.5170599679272}{z}}{z}\right)} \]

    if -3.3e21 < z < 5.1999999999999998e37

    1. Initial program 99.0%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Add Preprocessing
    3. Taylor expanded in z around 0 98.6%

      \[\leadsto x + \frac{y \cdot \left(\left(\left(\color{blue}{11.1667541262 \cdot z} + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    4. Step-by-step derivation
      1. *-commutative98.6%

        \[\leadsto x + \frac{y \cdot \left(\left(\left(\color{blue}{z \cdot 11.1667541262} + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    5. Simplified98.6%

      \[\leadsto x + \frac{y \cdot \left(\left(\left(\color{blue}{z \cdot 11.1667541262} + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    6. Taylor expanded in z around 0 95.9%

      \[\leadsto x + \frac{y \cdot \left(\left(\left(z \cdot 11.1667541262 + t\right) \cdot z + a\right) \cdot z + b\right)}{\color{blue}{z \cdot \left(11.9400905721 + 31.4690115749 \cdot z\right)} + 0.607771387771} \]
    7. Step-by-step derivation
      1. *-commutative95.9%

        \[\leadsto x + \frac{y \cdot \left(\left(\left(z \cdot 11.1667541262 + t\right) \cdot z + a\right) \cdot z + b\right)}{z \cdot \left(11.9400905721 + \color{blue}{z \cdot 31.4690115749}\right) + 0.607771387771} \]
    8. Simplified95.9%

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

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -3.3 \cdot 10^{+21} \lor \neg \left(z \leq 5.2 \cdot 10^{+37}\right):\\ \;\;\;\;x + \left(y \cdot 3.13060547623 - \frac{y \cdot -11.1667541262 - y \cdot \frac{t + -98.5170599679272}{z}}{z}\right)\\ \mathbf{else}:\\ \;\;\;\;x + \frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot 11.1667541262\right)\right)\right)}{0.607771387771 + z \cdot \left(11.9400905721 + z \cdot 31.4690115749\right)}\\ \end{array} \]
  5. Add Preprocessing

Alternative 8: 94.8% accurate, 1.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -0.41 \lor \neg \left(z \leq 5.2 \cdot 10^{+37}\right):\\ \;\;\;\;x + \left(y \cdot 3.13060547623 - \frac{y \cdot -11.1667541262 - y \cdot \frac{t + -98.5170599679272}{z}}{z}\right)\\ \mathbf{else}:\\ \;\;\;\;x + \frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot 11.1667541262\right)\right)\right)}{0.607771387771 + z \cdot 11.9400905721}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= z -0.41) (not (<= z 5.2e+37)))
   (+
    x
    (-
     (* y 3.13060547623)
     (/ (- (* y -11.1667541262) (* y (/ (+ t -98.5170599679272) z))) z)))
   (+
    x
    (/
     (* y (+ b (* z (+ a (* z (+ t (* z 11.1667541262)))))))
     (+ 0.607771387771 (* z 11.9400905721))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((z <= -0.41) || !(z <= 5.2e+37)) {
		tmp = x + ((y * 3.13060547623) - (((y * -11.1667541262) - (y * ((t + -98.5170599679272) / z))) / z));
	} else {
		tmp = x + ((y * (b + (z * (a + (z * (t + (z * 11.1667541262))))))) / (0.607771387771 + (z * 11.9400905721)));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if ((z <= (-0.41d0)) .or. (.not. (z <= 5.2d+37))) then
        tmp = x + ((y * 3.13060547623d0) - (((y * (-11.1667541262d0)) - (y * ((t + (-98.5170599679272d0)) / z))) / z))
    else
        tmp = x + ((y * (b + (z * (a + (z * (t + (z * 11.1667541262d0))))))) / (0.607771387771d0 + (z * 11.9400905721d0)))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((z <= -0.41) || !(z <= 5.2e+37)) {
		tmp = x + ((y * 3.13060547623) - (((y * -11.1667541262) - (y * ((t + -98.5170599679272) / z))) / z));
	} else {
		tmp = x + ((y * (b + (z * (a + (z * (t + (z * 11.1667541262))))))) / (0.607771387771 + (z * 11.9400905721)));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (z <= -0.41) or not (z <= 5.2e+37):
		tmp = x + ((y * 3.13060547623) - (((y * -11.1667541262) - (y * ((t + -98.5170599679272) / z))) / z))
	else:
		tmp = x + ((y * (b + (z * (a + (z * (t + (z * 11.1667541262))))))) / (0.607771387771 + (z * 11.9400905721)))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((z <= -0.41) || !(z <= 5.2e+37))
		tmp = Float64(x + Float64(Float64(y * 3.13060547623) - Float64(Float64(Float64(y * -11.1667541262) - Float64(y * Float64(Float64(t + -98.5170599679272) / z))) / z)));
	else
		tmp = Float64(x + Float64(Float64(y * Float64(b + Float64(z * Float64(a + Float64(z * Float64(t + Float64(z * 11.1667541262))))))) / Float64(0.607771387771 + Float64(z * 11.9400905721))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((z <= -0.41) || ~((z <= 5.2e+37)))
		tmp = x + ((y * 3.13060547623) - (((y * -11.1667541262) - (y * ((t + -98.5170599679272) / z))) / z));
	else
		tmp = x + ((y * (b + (z * (a + (z * (t + (z * 11.1667541262))))))) / (0.607771387771 + (z * 11.9400905721)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[z, -0.41], N[Not[LessEqual[z, 5.2e+37]], $MachinePrecision]], N[(x + N[(N[(y * 3.13060547623), $MachinePrecision] - N[(N[(N[(y * -11.1667541262), $MachinePrecision] - N[(y * N[(N[(t + -98.5170599679272), $MachinePrecision] / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + N[(N[(y * N[(b + N[(z * N[(a + N[(z * N[(t + N[(z * 11.1667541262), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(0.607771387771 + N[(z * 11.9400905721), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -0.41 \lor \neg \left(z \leq 5.2 \cdot 10^{+37}\right):\\
\;\;\;\;x + \left(y \cdot 3.13060547623 - \frac{y \cdot -11.1667541262 - y \cdot \frac{t + -98.5170599679272}{z}}{z}\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -0.409999999999999976 or 5.1999999999999998e37 < z

    1. Initial program 11.7%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Add Preprocessing
    3. Taylor expanded in z around inf 11.7%

      \[\leadsto x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\color{blue}{z} \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    4. Taylor expanded in z around -inf 86.4%

      \[\leadsto x + \color{blue}{\left(-1 \cdot \frac{-11.1667541262 \cdot y + -1 \cdot \frac{t \cdot y - 98.5170599679272 \cdot y}{z}}{z} + 3.13060547623 \cdot y\right)} \]
    5. Step-by-step derivation
      1. +-commutative86.4%

        \[\leadsto x + \color{blue}{\left(3.13060547623 \cdot y + -1 \cdot \frac{-11.1667541262 \cdot y + -1 \cdot \frac{t \cdot y - 98.5170599679272 \cdot y}{z}}{z}\right)} \]
      2. mul-1-neg86.4%

        \[\leadsto x + \left(3.13060547623 \cdot y + \color{blue}{\left(-\frac{-11.1667541262 \cdot y + -1 \cdot \frac{t \cdot y - 98.5170599679272 \cdot y}{z}}{z}\right)}\right) \]
      3. unsub-neg86.4%

        \[\leadsto x + \color{blue}{\left(3.13060547623 \cdot y - \frac{-11.1667541262 \cdot y + -1 \cdot \frac{t \cdot y - 98.5170599679272 \cdot y}{z}}{z}\right)} \]
      4. mul-1-neg86.4%

        \[\leadsto x + \left(3.13060547623 \cdot y - \frac{-11.1667541262 \cdot y + \color{blue}{\left(-\frac{t \cdot y - 98.5170599679272 \cdot y}{z}\right)}}{z}\right) \]
      5. unsub-neg86.4%

        \[\leadsto x + \left(3.13060547623 \cdot y - \frac{\color{blue}{-11.1667541262 \cdot y - \frac{t \cdot y - 98.5170599679272 \cdot y}{z}}}{z}\right) \]
      6. *-commutative86.4%

        \[\leadsto x + \left(3.13060547623 \cdot y - \frac{\color{blue}{y \cdot -11.1667541262} - \frac{t \cdot y - 98.5170599679272 \cdot y}{z}}{z}\right) \]
      7. distribute-rgt-out--86.4%

        \[\leadsto x + \left(3.13060547623 \cdot y - \frac{y \cdot -11.1667541262 - \frac{\color{blue}{y \cdot \left(t - 98.5170599679272\right)}}{z}}{z}\right) \]
      8. associate-/l*94.1%

        \[\leadsto x + \left(3.13060547623 \cdot y - \frac{y \cdot -11.1667541262 - \color{blue}{y \cdot \frac{t - 98.5170599679272}{z}}}{z}\right) \]
      9. sub-neg94.1%

        \[\leadsto x + \left(3.13060547623 \cdot y - \frac{y \cdot -11.1667541262 - y \cdot \frac{\color{blue}{t + \left(-98.5170599679272\right)}}{z}}{z}\right) \]
      10. metadata-eval94.1%

        \[\leadsto x + \left(3.13060547623 \cdot y - \frac{y \cdot -11.1667541262 - y \cdot \frac{t + \color{blue}{-98.5170599679272}}{z}}{z}\right) \]
    6. Simplified94.1%

      \[\leadsto x + \color{blue}{\left(3.13060547623 \cdot y - \frac{y \cdot -11.1667541262 - y \cdot \frac{t + -98.5170599679272}{z}}{z}\right)} \]

    if -0.409999999999999976 < z < 5.1999999999999998e37

    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 99.3%

      \[\leadsto x + \frac{y \cdot \left(\left(\left(\color{blue}{11.1667541262 \cdot z} + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    4. Step-by-step derivation
      1. *-commutative99.3%

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

      \[\leadsto x + \frac{y \cdot \left(\left(\left(\color{blue}{z \cdot 11.1667541262} + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    6. Taylor expanded in z around 0 97.1%

      \[\leadsto x + \frac{y \cdot \left(\left(\left(z \cdot 11.1667541262 + t\right) \cdot z + a\right) \cdot z + b\right)}{\color{blue}{11.9400905721 \cdot z} + 0.607771387771} \]
    7. Step-by-step derivation
      1. *-commutative97.1%

        \[\leadsto x + \frac{y \cdot \left(\left(\left(z \cdot 11.1667541262 + t\right) \cdot z + a\right) \cdot z + b\right)}{\color{blue}{z \cdot 11.9400905721} + 0.607771387771} \]
    8. Simplified97.1%

      \[\leadsto x + \frac{y \cdot \left(\left(\left(z \cdot 11.1667541262 + t\right) \cdot z + a\right) \cdot z + b\right)}{\color{blue}{z \cdot 11.9400905721} + 0.607771387771} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification95.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -0.41 \lor \neg \left(z \leq 5.2 \cdot 10^{+37}\right):\\ \;\;\;\;x + \left(y \cdot 3.13060547623 - \frac{y \cdot -11.1667541262 - y \cdot \frac{t + -98.5170599679272}{z}}{z}\right)\\ \mathbf{else}:\\ \;\;\;\;x + \frac{y \cdot \left(b + z \cdot \left(a + z \cdot \left(t + z \cdot 11.1667541262\right)\right)\right)}{0.607771387771 + z \cdot 11.9400905721}\\ \end{array} \]
  5. Add Preprocessing

Alternative 9: 91.1% accurate, 1.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -3.1 \cdot 10^{+21} \lor \neg \left(z \leq 5.2 \cdot 10^{+37}\right):\\ \;\;\;\;x + \left(y \cdot 3.13060547623 - \frac{y \cdot -11.1667541262 - y \cdot \frac{t + -98.5170599679272}{z}}{z}\right)\\ \mathbf{else}:\\ \;\;\;\;x + \left(1.6453555072203998 \cdot \left(y \cdot b\right) + 1.6453555072203998 \cdot \left(y \cdot \left(z \cdot a\right)\right)\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= z -3.1e+21) (not (<= z 5.2e+37)))
   (+
    x
    (-
     (* y 3.13060547623)
     (/ (- (* y -11.1667541262) (* y (/ (+ t -98.5170599679272) z))) z)))
   (+
    x
    (+ (* 1.6453555072203998 (* y b)) (* 1.6453555072203998 (* y (* z a)))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((z <= -3.1e+21) || !(z <= 5.2e+37)) {
		tmp = x + ((y * 3.13060547623) - (((y * -11.1667541262) - (y * ((t + -98.5170599679272) / z))) / z));
	} else {
		tmp = x + ((1.6453555072203998 * (y * b)) + (1.6453555072203998 * (y * (z * a))));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if ((z <= (-3.1d+21)) .or. (.not. (z <= 5.2d+37))) then
        tmp = x + ((y * 3.13060547623d0) - (((y * (-11.1667541262d0)) - (y * ((t + (-98.5170599679272d0)) / z))) / z))
    else
        tmp = x + ((1.6453555072203998d0 * (y * b)) + (1.6453555072203998d0 * (y * (z * a))))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((z <= -3.1e+21) || !(z <= 5.2e+37)) {
		tmp = x + ((y * 3.13060547623) - (((y * -11.1667541262) - (y * ((t + -98.5170599679272) / z))) / z));
	} else {
		tmp = x + ((1.6453555072203998 * (y * b)) + (1.6453555072203998 * (y * (z * a))));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (z <= -3.1e+21) or not (z <= 5.2e+37):
		tmp = x + ((y * 3.13060547623) - (((y * -11.1667541262) - (y * ((t + -98.5170599679272) / z))) / z))
	else:
		tmp = x + ((1.6453555072203998 * (y * b)) + (1.6453555072203998 * (y * (z * a))))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((z <= -3.1e+21) || !(z <= 5.2e+37))
		tmp = Float64(x + Float64(Float64(y * 3.13060547623) - Float64(Float64(Float64(y * -11.1667541262) - Float64(y * Float64(Float64(t + -98.5170599679272) / z))) / z)));
	else
		tmp = Float64(x + Float64(Float64(1.6453555072203998 * Float64(y * b)) + Float64(1.6453555072203998 * Float64(y * Float64(z * a)))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((z <= -3.1e+21) || ~((z <= 5.2e+37)))
		tmp = x + ((y * 3.13060547623) - (((y * -11.1667541262) - (y * ((t + -98.5170599679272) / z))) / z));
	else
		tmp = x + ((1.6453555072203998 * (y * b)) + (1.6453555072203998 * (y * (z * a))));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[z, -3.1e+21], N[Not[LessEqual[z, 5.2e+37]], $MachinePrecision]], N[(x + N[(N[(y * 3.13060547623), $MachinePrecision] - N[(N[(N[(y * -11.1667541262), $MachinePrecision] - N[(y * N[(N[(t + -98.5170599679272), $MachinePrecision] / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + N[(N[(1.6453555072203998 * N[(y * b), $MachinePrecision]), $MachinePrecision] + N[(1.6453555072203998 * N[(y * N[(z * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -3.1 \cdot 10^{+21} \lor \neg \left(z \leq 5.2 \cdot 10^{+37}\right):\\
\;\;\;\;x + \left(y \cdot 3.13060547623 - \frac{y \cdot -11.1667541262 - y \cdot \frac{t + -98.5170599679272}{z}}{z}\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -3.1e21 or 5.1999999999999998e37 < z

    1. Initial program 10.3%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Add Preprocessing
    3. Taylor expanded in z around inf 10.3%

      \[\leadsto x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\color{blue}{z} \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    4. Taylor expanded in z around -inf 88.5%

      \[\leadsto x + \color{blue}{\left(-1 \cdot \frac{-11.1667541262 \cdot y + -1 \cdot \frac{t \cdot y - 98.5170599679272 \cdot y}{z}}{z} + 3.13060547623 \cdot y\right)} \]
    5. Step-by-step derivation
      1. +-commutative88.5%

        \[\leadsto x + \color{blue}{\left(3.13060547623 \cdot y + -1 \cdot \frac{-11.1667541262 \cdot y + -1 \cdot \frac{t \cdot y - 98.5170599679272 \cdot y}{z}}{z}\right)} \]
      2. mul-1-neg88.5%

        \[\leadsto x + \left(3.13060547623 \cdot y + \color{blue}{\left(-\frac{-11.1667541262 \cdot y + -1 \cdot \frac{t \cdot y - 98.5170599679272 \cdot y}{z}}{z}\right)}\right) \]
      3. unsub-neg88.5%

        \[\leadsto x + \color{blue}{\left(3.13060547623 \cdot y - \frac{-11.1667541262 \cdot y + -1 \cdot \frac{t \cdot y - 98.5170599679272 \cdot y}{z}}{z}\right)} \]
      4. mul-1-neg88.5%

        \[\leadsto x + \left(3.13060547623 \cdot y - \frac{-11.1667541262 \cdot y + \color{blue}{\left(-\frac{t \cdot y - 98.5170599679272 \cdot y}{z}\right)}}{z}\right) \]
      5. unsub-neg88.5%

        \[\leadsto x + \left(3.13060547623 \cdot y - \frac{\color{blue}{-11.1667541262 \cdot y - \frac{t \cdot y - 98.5170599679272 \cdot y}{z}}}{z}\right) \]
      6. *-commutative88.5%

        \[\leadsto x + \left(3.13060547623 \cdot y - \frac{\color{blue}{y \cdot -11.1667541262} - \frac{t \cdot y - 98.5170599679272 \cdot y}{z}}{z}\right) \]
      7. distribute-rgt-out--88.5%

        \[\leadsto x + \left(3.13060547623 \cdot y - \frac{y \cdot -11.1667541262 - \frac{\color{blue}{y \cdot \left(t - 98.5170599679272\right)}}{z}}{z}\right) \]
      8. associate-/l*96.4%

        \[\leadsto x + \left(3.13060547623 \cdot y - \frac{y \cdot -11.1667541262 - \color{blue}{y \cdot \frac{t - 98.5170599679272}{z}}}{z}\right) \]
      9. sub-neg96.4%

        \[\leadsto x + \left(3.13060547623 \cdot y - \frac{y \cdot -11.1667541262 - y \cdot \frac{\color{blue}{t + \left(-98.5170599679272\right)}}{z}}{z}\right) \]
      10. metadata-eval96.4%

        \[\leadsto x + \left(3.13060547623 \cdot y - \frac{y \cdot -11.1667541262 - y \cdot \frac{t + \color{blue}{-98.5170599679272}}{z}}{z}\right) \]
    6. Simplified96.4%

      \[\leadsto x + \color{blue}{\left(3.13060547623 \cdot y - \frac{y \cdot -11.1667541262 - y \cdot \frac{t + -98.5170599679272}{z}}{z}\right)} \]

    if -3.1e21 < z < 5.1999999999999998e37

    1. Initial program 99.0%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Step-by-step derivation
      1. remove-double-neg99.0%

        \[\leadsto x + \frac{\color{blue}{-\left(-y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)\right)}}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
      2. distribute-lft-neg-out99.0%

        \[\leadsto x + \frac{-\color{blue}{\left(-y\right) \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
      3. distribute-lft-neg-in99.0%

        \[\leadsto x + \frac{\color{blue}{\left(-\left(-y\right)\right) \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
      4. remove-double-neg99.0%

        \[\leadsto x + \frac{\color{blue}{y} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
      5. fma-define99.0%

        \[\leadsto x + \frac{y \cdot \color{blue}{\mathsf{fma}\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a, z, b\right)}}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
      6. fma-define99.0%

        \[\leadsto x + \frac{y \cdot \mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t, z, a\right)}, z, b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
      7. fma-define99.0%

        \[\leadsto x + \frac{y \cdot \mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z \cdot 3.13060547623 + 11.1667541262, z, t\right)}, z, a\right), z, b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
      8. fma-define99.0%

        \[\leadsto x + \frac{y \cdot \mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right)}, z, t\right), z, a\right), z, b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    3. Simplified99.0%

      \[\leadsto \color{blue}{x + \frac{y \cdot \mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), z, t\right), z, a\right), z, b\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 72.9%

      \[\leadsto x + \color{blue}{\left(1.6453555072203998 \cdot \left(b \cdot y\right) + z \cdot \left(1.6453555072203998 \cdot \left(a \cdot y\right) - 32.324150453290734 \cdot \left(b \cdot y\right)\right)\right)} \]
    6. Taylor expanded in a around inf 85.8%

      \[\leadsto x + \left(1.6453555072203998 \cdot \left(b \cdot y\right) + \color{blue}{1.6453555072203998 \cdot \left(a \cdot \left(y \cdot z\right)\right)}\right) \]
    7. Step-by-step derivation
      1. *-commutative85.8%

        \[\leadsto x + \left(1.6453555072203998 \cdot \left(b \cdot y\right) + 1.6453555072203998 \cdot \color{blue}{\left(\left(y \cdot z\right) \cdot a\right)}\right) \]
      2. associate-*l*88.3%

        \[\leadsto x + \left(1.6453555072203998 \cdot \left(b \cdot y\right) + 1.6453555072203998 \cdot \color{blue}{\left(y \cdot \left(z \cdot a\right)\right)}\right) \]
    8. Simplified88.3%

      \[\leadsto x + \left(1.6453555072203998 \cdot \left(b \cdot y\right) + \color{blue}{1.6453555072203998 \cdot \left(y \cdot \left(z \cdot a\right)\right)}\right) \]
  3. Recombined 2 regimes into one program.
  4. Final simplification92.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -3.1 \cdot 10^{+21} \lor \neg \left(z \leq 5.2 \cdot 10^{+37}\right):\\ \;\;\;\;x + \left(y \cdot 3.13060547623 - \frac{y \cdot -11.1667541262 - y \cdot \frac{t + -98.5170599679272}{z}}{z}\right)\\ \mathbf{else}:\\ \;\;\;\;x + \left(1.6453555072203998 \cdot \left(y \cdot b\right) + 1.6453555072203998 \cdot \left(y \cdot \left(z \cdot a\right)\right)\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 10: 47.9% accurate, 1.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -3.7 \cdot 10^{+25}:\\ \;\;\;\;x\\ \mathbf{elif}\;x \leq 8.5 \cdot 10^{-297}:\\ \;\;\;\;1.6453555072203998 \cdot \left(y \cdot b\right)\\ \mathbf{elif}\;x \leq 3.5 \cdot 10^{-32}:\\ \;\;\;\;y \cdot 3.13060547623\\ \mathbf{elif}\;x \leq 2.5 \cdot 10^{+44}:\\ \;\;\;\;y \cdot \left(b \cdot 1.6453555072203998\right)\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= x -3.7e+25)
   x
   (if (<= x 8.5e-297)
     (* 1.6453555072203998 (* y b))
     (if (<= x 3.5e-32)
       (* y 3.13060547623)
       (if (<= x 2.5e+44) (* y (* b 1.6453555072203998)) x)))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (x <= -3.7e+25) {
		tmp = x;
	} else if (x <= 8.5e-297) {
		tmp = 1.6453555072203998 * (y * b);
	} else if (x <= 3.5e-32) {
		tmp = y * 3.13060547623;
	} else if (x <= 2.5e+44) {
		tmp = y * (b * 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 <= (-3.7d+25)) then
        tmp = x
    else if (x <= 8.5d-297) then
        tmp = 1.6453555072203998d0 * (y * b)
    else if (x <= 3.5d-32) then
        tmp = y * 3.13060547623d0
    else if (x <= 2.5d+44) then
        tmp = y * (b * 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 <= -3.7e+25) {
		tmp = x;
	} else if (x <= 8.5e-297) {
		tmp = 1.6453555072203998 * (y * b);
	} else if (x <= 3.5e-32) {
		tmp = y * 3.13060547623;
	} else if (x <= 2.5e+44) {
		tmp = y * (b * 1.6453555072203998);
	} else {
		tmp = x;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if x <= -3.7e+25:
		tmp = x
	elif x <= 8.5e-297:
		tmp = 1.6453555072203998 * (y * b)
	elif x <= 3.5e-32:
		tmp = y * 3.13060547623
	elif x <= 2.5e+44:
		tmp = y * (b * 1.6453555072203998)
	else:
		tmp = x
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (x <= -3.7e+25)
		tmp = x;
	elseif (x <= 8.5e-297)
		tmp = Float64(1.6453555072203998 * Float64(y * b));
	elseif (x <= 3.5e-32)
		tmp = Float64(y * 3.13060547623);
	elseif (x <= 2.5e+44)
		tmp = Float64(y * Float64(b * 1.6453555072203998));
	else
		tmp = x;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (x <= -3.7e+25)
		tmp = x;
	elseif (x <= 8.5e-297)
		tmp = 1.6453555072203998 * (y * b);
	elseif (x <= 3.5e-32)
		tmp = y * 3.13060547623;
	elseif (x <= 2.5e+44)
		tmp = y * (b * 1.6453555072203998);
	else
		tmp = x;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[x, -3.7e+25], x, If[LessEqual[x, 8.5e-297], N[(1.6453555072203998 * N[(y * b), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 3.5e-32], N[(y * 3.13060547623), $MachinePrecision], If[LessEqual[x, 2.5e+44], N[(y * N[(b * 1.6453555072203998), $MachinePrecision]), $MachinePrecision], x]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq -3.7 \cdot 10^{+25}:\\
\;\;\;\;x\\

\mathbf{elif}\;x \leq 8.5 \cdot 10^{-297}:\\
\;\;\;\;1.6453555072203998 \cdot \left(y \cdot b\right)\\

\mathbf{elif}\;x \leq 3.5 \cdot 10^{-32}:\\
\;\;\;\;y \cdot 3.13060547623\\

\mathbf{elif}\;x \leq 2.5 \cdot 10^{+44}:\\
\;\;\;\;y \cdot \left(b \cdot 1.6453555072203998\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if x < -3.6999999999999999e25 or 2.4999999999999998e44 < x

    1. Initial program 49.1%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Simplified53.2%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, \frac{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right)}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)}, x\right)} \]
    3. Add Preprocessing
    4. Taylor expanded in y around 0 72.5%

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

    if -3.6999999999999999e25 < x < 8.49999999999999991e-297

    1. Initial program 72.3%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Simplified72.4%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, \frac{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right)}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)}, x\right)} \]
    3. Add Preprocessing
    4. Taylor expanded in z around 0 43.0%

      \[\leadsto \mathsf{fma}\left(y, \color{blue}{1.6453555072203998 \cdot b}, x\right) \]
    5. Step-by-step derivation
      1. *-commutative43.0%

        \[\leadsto \mathsf{fma}\left(y, \color{blue}{b \cdot 1.6453555072203998}, x\right) \]
    6. Simplified43.0%

      \[\leadsto \mathsf{fma}\left(y, \color{blue}{b \cdot 1.6453555072203998}, x\right) \]
    7. Taylor expanded in y around inf 37.7%

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

    if 8.49999999999999991e-297 < x < 3.4999999999999999e-32

    1. Initial program 46.8%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Simplified49.8%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, \frac{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right)}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)}, x\right)} \]
    3. Add Preprocessing
    4. Taylor expanded in z around inf 62.3%

      \[\leadsto \mathsf{fma}\left(y, \color{blue}{3.13060547623}, x\right) \]
    5. Taylor expanded in y around inf 46.6%

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

    if 3.4999999999999999e-32 < x < 2.4999999999999998e44

    1. Initial program 76.8%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Simplified87.9%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, \frac{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right)}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)}, x\right)} \]
    3. Add Preprocessing
    4. Taylor expanded in z around 0 71.2%

      \[\leadsto \mathsf{fma}\left(y, \color{blue}{1.6453555072203998 \cdot b}, x\right) \]
    5. Step-by-step derivation
      1. *-commutative71.2%

        \[\leadsto \mathsf{fma}\left(y, \color{blue}{b \cdot 1.6453555072203998}, x\right) \]
    6. Simplified71.2%

      \[\leadsto \mathsf{fma}\left(y, \color{blue}{b \cdot 1.6453555072203998}, x\right) \]
    7. Taylor expanded in y around inf 60.1%

      \[\leadsto \color{blue}{1.6453555072203998 \cdot \left(b \cdot y\right)} \]
    8. Step-by-step derivation
      1. associate-*r*60.3%

        \[\leadsto \color{blue}{\left(1.6453555072203998 \cdot b\right) \cdot y} \]
      2. *-commutative60.3%

        \[\leadsto \color{blue}{y \cdot \left(1.6453555072203998 \cdot b\right)} \]
    9. Simplified60.3%

      \[\leadsto \color{blue}{y \cdot \left(1.6453555072203998 \cdot b\right)} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification56.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -3.7 \cdot 10^{+25}:\\ \;\;\;\;x\\ \mathbf{elif}\;x \leq 8.5 \cdot 10^{-297}:\\ \;\;\;\;1.6453555072203998 \cdot \left(y \cdot b\right)\\ \mathbf{elif}\;x \leq 3.5 \cdot 10^{-32}:\\ \;\;\;\;y \cdot 3.13060547623\\ \mathbf{elif}\;x \leq 2.5 \cdot 10^{+44}:\\ \;\;\;\;y \cdot \left(b \cdot 1.6453555072203998\right)\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \]
  5. Add Preprocessing

Alternative 11: 47.9% accurate, 1.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := 1.6453555072203998 \cdot \left(y \cdot b\right)\\ \mathbf{if}\;x \leq -4.3 \cdot 10^{+25}:\\ \;\;\;\;x\\ \mathbf{elif}\;x \leq 2.25 \cdot 10^{-296}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;x \leq 6.8 \cdot 10^{-32}:\\ \;\;\;\;y \cdot 3.13060547623\\ \mathbf{elif}\;x \leq 2.9 \cdot 10^{+44}:\\ \;\;\;\;t\_1\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* 1.6453555072203998 (* y b))))
   (if (<= x -4.3e+25)
     x
     (if (<= x 2.25e-296)
       t_1
       (if (<= x 6.8e-32) (* y 3.13060547623) (if (<= x 2.9e+44) t_1 x))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = 1.6453555072203998 * (y * b);
	double tmp;
	if (x <= -4.3e+25) {
		tmp = x;
	} else if (x <= 2.25e-296) {
		tmp = t_1;
	} else if (x <= 6.8e-32) {
		tmp = y * 3.13060547623;
	} else if (x <= 2.9e+44) {
		tmp = t_1;
	} 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) :: t_1
    real(8) :: tmp
    t_1 = 1.6453555072203998d0 * (y * b)
    if (x <= (-4.3d+25)) then
        tmp = x
    else if (x <= 2.25d-296) then
        tmp = t_1
    else if (x <= 6.8d-32) then
        tmp = y * 3.13060547623d0
    else if (x <= 2.9d+44) then
        tmp = t_1
    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 t_1 = 1.6453555072203998 * (y * b);
	double tmp;
	if (x <= -4.3e+25) {
		tmp = x;
	} else if (x <= 2.25e-296) {
		tmp = t_1;
	} else if (x <= 6.8e-32) {
		tmp = y * 3.13060547623;
	} else if (x <= 2.9e+44) {
		tmp = t_1;
	} else {
		tmp = x;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = 1.6453555072203998 * (y * b)
	tmp = 0
	if x <= -4.3e+25:
		tmp = x
	elif x <= 2.25e-296:
		tmp = t_1
	elif x <= 6.8e-32:
		tmp = y * 3.13060547623
	elif x <= 2.9e+44:
		tmp = t_1
	else:
		tmp = x
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(1.6453555072203998 * Float64(y * b))
	tmp = 0.0
	if (x <= -4.3e+25)
		tmp = x;
	elseif (x <= 2.25e-296)
		tmp = t_1;
	elseif (x <= 6.8e-32)
		tmp = Float64(y * 3.13060547623);
	elseif (x <= 2.9e+44)
		tmp = t_1;
	else
		tmp = x;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = 1.6453555072203998 * (y * b);
	tmp = 0.0;
	if (x <= -4.3e+25)
		tmp = x;
	elseif (x <= 2.25e-296)
		tmp = t_1;
	elseif (x <= 6.8e-32)
		tmp = y * 3.13060547623;
	elseif (x <= 2.9e+44)
		tmp = t_1;
	else
		tmp = x;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(1.6453555072203998 * N[(y * b), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[x, -4.3e+25], x, If[LessEqual[x, 2.25e-296], t$95$1, If[LessEqual[x, 6.8e-32], N[(y * 3.13060547623), $MachinePrecision], If[LessEqual[x, 2.9e+44], t$95$1, x]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := 1.6453555072203998 \cdot \left(y \cdot b\right)\\
\mathbf{if}\;x \leq -4.3 \cdot 10^{+25}:\\
\;\;\;\;x\\

\mathbf{elif}\;x \leq 2.25 \cdot 10^{-296}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;x \leq 6.8 \cdot 10^{-32}:\\
\;\;\;\;y \cdot 3.13060547623\\

\mathbf{elif}\;x \leq 2.9 \cdot 10^{+44}:\\
\;\;\;\;t\_1\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if x < -4.29999999999999998e25 or 2.9000000000000002e44 < x

    1. Initial program 49.1%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Simplified53.2%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, \frac{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right)}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)}, x\right)} \]
    3. Add Preprocessing
    4. Taylor expanded in y around 0 72.5%

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

    if -4.29999999999999998e25 < x < 2.2500000000000001e-296 or 6.79999999999999956e-32 < x < 2.9000000000000002e44

    1. Initial program 73.3%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Simplified75.6%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, \frac{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right)}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)}, x\right)} \]
    3. Add Preprocessing
    4. Taylor expanded in z around 0 48.8%

      \[\leadsto \mathsf{fma}\left(y, \color{blue}{1.6453555072203998 \cdot b}, x\right) \]
    5. Step-by-step derivation
      1. *-commutative48.8%

        \[\leadsto \mathsf{fma}\left(y, \color{blue}{b \cdot 1.6453555072203998}, x\right) \]
    6. Simplified48.8%

      \[\leadsto \mathsf{fma}\left(y, \color{blue}{b \cdot 1.6453555072203998}, x\right) \]
    7. Taylor expanded in y around inf 42.3%

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

    if 2.2500000000000001e-296 < x < 6.79999999999999956e-32

    1. Initial program 46.8%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Simplified49.8%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, \frac{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right)}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)}, x\right)} \]
    3. Add Preprocessing
    4. Taylor expanded in z around inf 62.3%

      \[\leadsto \mathsf{fma}\left(y, \color{blue}{3.13060547623}, x\right) \]
    5. Taylor expanded in y around inf 46.6%

      \[\leadsto \color{blue}{3.13060547623 \cdot y} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification56.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -4.3 \cdot 10^{+25}:\\ \;\;\;\;x\\ \mathbf{elif}\;x \leq 2.25 \cdot 10^{-296}:\\ \;\;\;\;1.6453555072203998 \cdot \left(y \cdot b\right)\\ \mathbf{elif}\;x \leq 6.8 \cdot 10^{-32}:\\ \;\;\;\;y \cdot 3.13060547623\\ \mathbf{elif}\;x \leq 2.9 \cdot 10^{+44}:\\ \;\;\;\;1.6453555072203998 \cdot \left(y \cdot b\right)\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \]
  5. Add Preprocessing

Alternative 12: 89.5% accurate, 1.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -3.4 \cdot 10^{+21} \lor \neg \left(z \leq 5.5 \cdot 10^{+37}\right):\\ \;\;\;\;x + y \cdot 3.13060547623\\ \mathbf{else}:\\ \;\;\;\;x + \left(1.6453555072203998 \cdot \left(y \cdot b\right) + 1.6453555072203998 \cdot \left(y \cdot \left(z \cdot a\right)\right)\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= z -3.4e+21) (not (<= z 5.5e+37)))
   (+ x (* y 3.13060547623))
   (+
    x
    (+ (* 1.6453555072203998 (* y b)) (* 1.6453555072203998 (* y (* z a)))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((z <= -3.4e+21) || !(z <= 5.5e+37)) {
		tmp = x + (y * 3.13060547623);
	} else {
		tmp = x + ((1.6453555072203998 * (y * b)) + (1.6453555072203998 * (y * (z * a))));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if ((z <= (-3.4d+21)) .or. (.not. (z <= 5.5d+37))) then
        tmp = x + (y * 3.13060547623d0)
    else
        tmp = x + ((1.6453555072203998d0 * (y * b)) + (1.6453555072203998d0 * (y * (z * a))))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((z <= -3.4e+21) || !(z <= 5.5e+37)) {
		tmp = x + (y * 3.13060547623);
	} else {
		tmp = x + ((1.6453555072203998 * (y * b)) + (1.6453555072203998 * (y * (z * a))));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (z <= -3.4e+21) or not (z <= 5.5e+37):
		tmp = x + (y * 3.13060547623)
	else:
		tmp = x + ((1.6453555072203998 * (y * b)) + (1.6453555072203998 * (y * (z * a))))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((z <= -3.4e+21) || !(z <= 5.5e+37))
		tmp = Float64(x + Float64(y * 3.13060547623));
	else
		tmp = Float64(x + Float64(Float64(1.6453555072203998 * Float64(y * b)) + Float64(1.6453555072203998 * Float64(y * Float64(z * a)))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((z <= -3.4e+21) || ~((z <= 5.5e+37)))
		tmp = x + (y * 3.13060547623);
	else
		tmp = x + ((1.6453555072203998 * (y * b)) + (1.6453555072203998 * (y * (z * a))));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[z, -3.4e+21], N[Not[LessEqual[z, 5.5e+37]], $MachinePrecision]], N[(x + N[(y * 3.13060547623), $MachinePrecision]), $MachinePrecision], N[(x + N[(N[(1.6453555072203998 * N[(y * b), $MachinePrecision]), $MachinePrecision] + N[(1.6453555072203998 * N[(y * N[(z * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -3.4 \cdot 10^{+21} \lor \neg \left(z \leq 5.5 \cdot 10^{+37}\right):\\
\;\;\;\;x + y \cdot 3.13060547623\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -3.4e21 or 5.50000000000000016e37 < z

    1. Initial program 10.3%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Simplified16.2%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, \frac{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right)}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)}, x\right)} \]
    3. Add Preprocessing
    4. Taylor expanded in z around inf 96.2%

      \[\leadsto \color{blue}{x + 3.13060547623 \cdot y} \]
    5. Step-by-step derivation
      1. +-commutative96.2%

        \[\leadsto \color{blue}{3.13060547623 \cdot y + x} \]
    6. Simplified96.2%

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

    if -3.4e21 < z < 5.50000000000000016e37

    1. Initial program 99.0%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Step-by-step derivation
      1. remove-double-neg99.0%

        \[\leadsto x + \frac{\color{blue}{-\left(-y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)\right)}}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
      2. distribute-lft-neg-out99.0%

        \[\leadsto x + \frac{-\color{blue}{\left(-y\right) \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
      3. distribute-lft-neg-in99.0%

        \[\leadsto x + \frac{\color{blue}{\left(-\left(-y\right)\right) \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
      4. remove-double-neg99.0%

        \[\leadsto x + \frac{\color{blue}{y} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
      5. fma-define99.0%

        \[\leadsto x + \frac{y \cdot \color{blue}{\mathsf{fma}\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a, z, b\right)}}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
      6. fma-define99.0%

        \[\leadsto x + \frac{y \cdot \mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t, z, a\right)}, z, b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
      7. fma-define99.0%

        \[\leadsto x + \frac{y \cdot \mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z \cdot 3.13060547623 + 11.1667541262, z, t\right)}, z, a\right), z, b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
      8. fma-define99.0%

        \[\leadsto x + \frac{y \cdot \mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right)}, z, t\right), z, a\right), z, b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    3. Simplified99.0%

      \[\leadsto \color{blue}{x + \frac{y \cdot \mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), z, t\right), z, a\right), z, b\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 72.9%

      \[\leadsto x + \color{blue}{\left(1.6453555072203998 \cdot \left(b \cdot y\right) + z \cdot \left(1.6453555072203998 \cdot \left(a \cdot y\right) - 32.324150453290734 \cdot \left(b \cdot y\right)\right)\right)} \]
    6. Taylor expanded in a around inf 85.8%

      \[\leadsto x + \left(1.6453555072203998 \cdot \left(b \cdot y\right) + \color{blue}{1.6453555072203998 \cdot \left(a \cdot \left(y \cdot z\right)\right)}\right) \]
    7. Step-by-step derivation
      1. *-commutative85.8%

        \[\leadsto x + \left(1.6453555072203998 \cdot \left(b \cdot y\right) + 1.6453555072203998 \cdot \color{blue}{\left(\left(y \cdot z\right) \cdot a\right)}\right) \]
      2. associate-*l*88.3%

        \[\leadsto x + \left(1.6453555072203998 \cdot \left(b \cdot y\right) + 1.6453555072203998 \cdot \color{blue}{\left(y \cdot \left(z \cdot a\right)\right)}\right) \]
    8. Simplified88.3%

      \[\leadsto x + \left(1.6453555072203998 \cdot \left(b \cdot y\right) + \color{blue}{1.6453555072203998 \cdot \left(y \cdot \left(z \cdot a\right)\right)}\right) \]
  3. Recombined 2 regimes into one program.
  4. Final simplification92.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -3.4 \cdot 10^{+21} \lor \neg \left(z \leq 5.5 \cdot 10^{+37}\right):\\ \;\;\;\;x + y \cdot 3.13060547623\\ \mathbf{else}:\\ \;\;\;\;x + \left(1.6453555072203998 \cdot \left(y \cdot b\right) + 1.6453555072203998 \cdot \left(y \cdot \left(z \cdot a\right)\right)\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 13: 83.4% accurate, 2.2× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -2.6 \cdot 10^{+21} \lor \neg \left(z \leq 5.2 \cdot 10^{+37}\right):\\ \;\;\;\;x + y \cdot 3.13060547623\\ \mathbf{else}:\\ \;\;\;\;x + 1.6453555072203998 \cdot \left(y \cdot b\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= z -2.6e+21) (not (<= z 5.2e+37)))
   (+ x (* y 3.13060547623))
   (+ x (* 1.6453555072203998 (* y b)))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((z <= -2.6e+21) || !(z <= 5.2e+37)) {
		tmp = x + (y * 3.13060547623);
	} else {
		tmp = x + (1.6453555072203998 * (y * b));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if ((z <= (-2.6d+21)) .or. (.not. (z <= 5.2d+37))) then
        tmp = x + (y * 3.13060547623d0)
    else
        tmp = x + (1.6453555072203998d0 * (y * b))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((z <= -2.6e+21) || !(z <= 5.2e+37)) {
		tmp = x + (y * 3.13060547623);
	} else {
		tmp = x + (1.6453555072203998 * (y * b));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (z <= -2.6e+21) or not (z <= 5.2e+37):
		tmp = x + (y * 3.13060547623)
	else:
		tmp = x + (1.6453555072203998 * (y * b))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((z <= -2.6e+21) || !(z <= 5.2e+37))
		tmp = Float64(x + Float64(y * 3.13060547623));
	else
		tmp = Float64(x + Float64(1.6453555072203998 * Float64(y * b)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((z <= -2.6e+21) || ~((z <= 5.2e+37)))
		tmp = x + (y * 3.13060547623);
	else
		tmp = x + (1.6453555072203998 * (y * b));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[z, -2.6e+21], N[Not[LessEqual[z, 5.2e+37]], $MachinePrecision]], N[(x + N[(y * 3.13060547623), $MachinePrecision]), $MachinePrecision], N[(x + N[(1.6453555072203998 * N[(y * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -2.6 \cdot 10^{+21} \lor \neg \left(z \leq 5.2 \cdot 10^{+37}\right):\\
\;\;\;\;x + y \cdot 3.13060547623\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -2.6e21 or 5.1999999999999998e37 < z

    1. Initial program 10.3%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Simplified16.2%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, \frac{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right)}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)}, x\right)} \]
    3. Add Preprocessing
    4. Taylor expanded in z around inf 96.2%

      \[\leadsto \color{blue}{x + 3.13060547623 \cdot y} \]
    5. Step-by-step derivation
      1. +-commutative96.2%

        \[\leadsto \color{blue}{3.13060547623 \cdot y + x} \]
    6. Simplified96.2%

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

    if -2.6e21 < z < 5.1999999999999998e37

    1. Initial program 99.0%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Simplified99.7%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, \frac{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right)}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)}, x\right)} \]
    3. Add Preprocessing
    4. Taylor expanded in z around 0 74.2%

      \[\leadsto \color{blue}{x + 1.6453555072203998 \cdot \left(b \cdot y\right)} \]
    5. Step-by-step derivation
      1. +-commutative74.2%

        \[\leadsto \color{blue}{1.6453555072203998 \cdot \left(b \cdot y\right) + x} \]
      2. *-commutative74.2%

        \[\leadsto 1.6453555072203998 \cdot \color{blue}{\left(y \cdot b\right)} + x \]
    6. Simplified74.2%

      \[\leadsto \color{blue}{1.6453555072203998 \cdot \left(y \cdot b\right) + x} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification84.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -2.6 \cdot 10^{+21} \lor \neg \left(z \leq 5.2 \cdot 10^{+37}\right):\\ \;\;\;\;x + y \cdot 3.13060547623\\ \mathbf{else}:\\ \;\;\;\;x + 1.6453555072203998 \cdot \left(y \cdot b\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 14: 83.3% accurate, 2.2× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -3.1 \cdot 10^{+21} \lor \neg \left(z \leq 5.2 \cdot 10^{+43}\right):\\ \;\;\;\;x + y \cdot 3.13060547623\\ \mathbf{else}:\\ \;\;\;\;x + b \cdot \left(y \cdot 1.6453555072203998\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= z -3.1e+21) (not (<= z 5.2e+43)))
   (+ x (* y 3.13060547623))
   (+ x (* b (* y 1.6453555072203998)))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((z <= -3.1e+21) || !(z <= 5.2e+43)) {
		tmp = x + (y * 3.13060547623);
	} else {
		tmp = x + (b * (y * 1.6453555072203998));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if ((z <= (-3.1d+21)) .or. (.not. (z <= 5.2d+43))) then
        tmp = x + (y * 3.13060547623d0)
    else
        tmp = x + (b * (y * 1.6453555072203998d0))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((z <= -3.1e+21) || !(z <= 5.2e+43)) {
		tmp = x + (y * 3.13060547623);
	} else {
		tmp = x + (b * (y * 1.6453555072203998));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (z <= -3.1e+21) or not (z <= 5.2e+43):
		tmp = x + (y * 3.13060547623)
	else:
		tmp = x + (b * (y * 1.6453555072203998))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((z <= -3.1e+21) || !(z <= 5.2e+43))
		tmp = Float64(x + Float64(y * 3.13060547623));
	else
		tmp = Float64(x + Float64(b * Float64(y * 1.6453555072203998)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((z <= -3.1e+21) || ~((z <= 5.2e+43)))
		tmp = x + (y * 3.13060547623);
	else
		tmp = x + (b * (y * 1.6453555072203998));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[z, -3.1e+21], N[Not[LessEqual[z, 5.2e+43]], $MachinePrecision]], N[(x + N[(y * 3.13060547623), $MachinePrecision]), $MachinePrecision], N[(x + N[(b * N[(y * 1.6453555072203998), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -3.1 \cdot 10^{+21} \lor \neg \left(z \leq 5.2 \cdot 10^{+43}\right):\\
\;\;\;\;x + y \cdot 3.13060547623\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -3.1e21 or 5.20000000000000042e43 < z

    1. Initial program 10.3%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Simplified16.2%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, \frac{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right)}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)}, x\right)} \]
    3. Add Preprocessing
    4. Taylor expanded in z around inf 96.2%

      \[\leadsto \color{blue}{x + 3.13060547623 \cdot y} \]
    5. Step-by-step derivation
      1. +-commutative96.2%

        \[\leadsto \color{blue}{3.13060547623 \cdot y + x} \]
    6. Simplified96.2%

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

    if -3.1e21 < z < 5.20000000000000042e43

    1. Initial program 99.0%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Step-by-step derivation
      1. remove-double-neg99.0%

        \[\leadsto x + \frac{\color{blue}{-\left(-y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)\right)}}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
      2. distribute-lft-neg-out99.0%

        \[\leadsto x + \frac{-\color{blue}{\left(-y\right) \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
      3. distribute-lft-neg-in99.0%

        \[\leadsto x + \frac{\color{blue}{\left(-\left(-y\right)\right) \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
      4. remove-double-neg99.0%

        \[\leadsto x + \frac{\color{blue}{y} \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
      5. fma-define99.0%

        \[\leadsto x + \frac{y \cdot \color{blue}{\mathsf{fma}\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a, z, b\right)}}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
      6. fma-define99.0%

        \[\leadsto x + \frac{y \cdot \mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t, z, a\right)}, z, b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
      7. fma-define99.0%

        \[\leadsto x + \frac{y \cdot \mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z \cdot 3.13060547623 + 11.1667541262, z, t\right)}, z, a\right), z, b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
      8. fma-define99.0%

        \[\leadsto x + \frac{y \cdot \mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\color{blue}{\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right)}, z, t\right), z, a\right), z, b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    3. Simplified99.0%

      \[\leadsto \color{blue}{x + \frac{y \cdot \mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), z, t\right), z, a\right), z, b\right)}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(z + 15.234687407, z, 31.4690115749\right), z, 11.9400905721\right), z, 0.607771387771\right)}} \]
    4. Add Preprocessing
    5. Taylor expanded in b around inf 75.4%

      \[\leadsto x + \color{blue}{\frac{b \cdot y}{0.607771387771 + z \cdot \left(11.9400905721 + z \cdot \left(31.4690115749 + z \cdot \left(15.234687407 + z\right)\right)\right)}} \]
    6. Taylor expanded in z around 0 74.2%

      \[\leadsto x + \color{blue}{1.6453555072203998 \cdot \left(b \cdot y\right)} \]
    7. Step-by-step derivation
      1. *-commutative74.2%

        \[\leadsto x + 1.6453555072203998 \cdot \color{blue}{\left(y \cdot b\right)} \]
      2. associate-*r*74.2%

        \[\leadsto x + \color{blue}{\left(1.6453555072203998 \cdot y\right) \cdot b} \]
    8. Simplified74.2%

      \[\leadsto x + \color{blue}{\left(1.6453555072203998 \cdot y\right) \cdot b} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification84.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -3.1 \cdot 10^{+21} \lor \neg \left(z \leq 5.2 \cdot 10^{+43}\right):\\ \;\;\;\;x + y \cdot 3.13060547623\\ \mathbf{else}:\\ \;\;\;\;x + b \cdot \left(y \cdot 1.6453555072203998\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 15: 63.2% accurate, 2.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -3 \cdot 10^{-125} \lor \neg \left(z \leq 3.3 \cdot 10^{-148}\right):\\ \;\;\;\;x + y \cdot 3.13060547623\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(b \cdot 1.6453555072203998\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= z -3e-125) (not (<= z 3.3e-148)))
   (+ x (* y 3.13060547623))
   (* y (* b 1.6453555072203998))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((z <= -3e-125) || !(z <= 3.3e-148)) {
		tmp = x + (y * 3.13060547623);
	} else {
		tmp = y * (b * 1.6453555072203998);
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if ((z <= (-3d-125)) .or. (.not. (z <= 3.3d-148))) then
        tmp = x + (y * 3.13060547623d0)
    else
        tmp = y * (b * 1.6453555072203998d0)
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((z <= -3e-125) || !(z <= 3.3e-148)) {
		tmp = x + (y * 3.13060547623);
	} else {
		tmp = y * (b * 1.6453555072203998);
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (z <= -3e-125) or not (z <= 3.3e-148):
		tmp = x + (y * 3.13060547623)
	else:
		tmp = y * (b * 1.6453555072203998)
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((z <= -3e-125) || !(z <= 3.3e-148))
		tmp = Float64(x + Float64(y * 3.13060547623));
	else
		tmp = Float64(y * Float64(b * 1.6453555072203998));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((z <= -3e-125) || ~((z <= 3.3e-148)))
		tmp = x + (y * 3.13060547623);
	else
		tmp = y * (b * 1.6453555072203998);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[z, -3e-125], N[Not[LessEqual[z, 3.3e-148]], $MachinePrecision]], N[(x + N[(y * 3.13060547623), $MachinePrecision]), $MachinePrecision], N[(y * N[(b * 1.6453555072203998), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -3 \cdot 10^{-125} \lor \neg \left(z \leq 3.3 \cdot 10^{-148}\right):\\
\;\;\;\;x + y \cdot 3.13060547623\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -2.9999999999999999e-125 or 3.29999999999999974e-148 < z

    1. Initial program 38.8%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Simplified43.3%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, \frac{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right)}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)}, x\right)} \]
    3. Add Preprocessing
    4. Taylor expanded in z around inf 77.6%

      \[\leadsto \color{blue}{x + 3.13060547623 \cdot y} \]
    5. Step-by-step derivation
      1. +-commutative77.6%

        \[\leadsto \color{blue}{3.13060547623 \cdot y + x} \]
    6. Simplified77.6%

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

    if -2.9999999999999999e-125 < z < 3.29999999999999974e-148

    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. Simplified99.7%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, \frac{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right)}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)}, x\right)} \]
    3. Add Preprocessing
    4. Taylor expanded in z around 0 81.9%

      \[\leadsto \mathsf{fma}\left(y, \color{blue}{1.6453555072203998 \cdot b}, x\right) \]
    5. Step-by-step derivation
      1. *-commutative81.9%

        \[\leadsto \mathsf{fma}\left(y, \color{blue}{b \cdot 1.6453555072203998}, x\right) \]
    6. Simplified81.9%

      \[\leadsto \mathsf{fma}\left(y, \color{blue}{b \cdot 1.6453555072203998}, x\right) \]
    7. Taylor expanded in y around inf 53.7%

      \[\leadsto \color{blue}{1.6453555072203998 \cdot \left(b \cdot y\right)} \]
    8. Step-by-step derivation
      1. associate-*r*53.7%

        \[\leadsto \color{blue}{\left(1.6453555072203998 \cdot b\right) \cdot y} \]
      2. *-commutative53.7%

        \[\leadsto \color{blue}{y \cdot \left(1.6453555072203998 \cdot b\right)} \]
    9. Simplified53.7%

      \[\leadsto \color{blue}{y \cdot \left(1.6453555072203998 \cdot b\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification70.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -3 \cdot 10^{-125} \lor \neg \left(z \leq 3.3 \cdot 10^{-148}\right):\\ \;\;\;\;x + y \cdot 3.13060547623\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(b \cdot 1.6453555072203998\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 16: 49.2% accurate, 2.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -52000000:\\ \;\;\;\;x\\ \mathbf{elif}\;x \leq 320:\\ \;\;\;\;y \cdot 3.13060547623\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= x -52000000.0) x (if (<= x 320.0) (* y 3.13060547623) x)))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (x <= -52000000.0) {
		tmp = x;
	} else if (x <= 320.0) {
		tmp = y * 3.13060547623;
	} 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 <= (-52000000.0d0)) then
        tmp = x
    else if (x <= 320.0d0) then
        tmp = y * 3.13060547623d0
    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 <= -52000000.0) {
		tmp = x;
	} else if (x <= 320.0) {
		tmp = y * 3.13060547623;
	} else {
		tmp = x;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if x <= -52000000.0:
		tmp = x
	elif x <= 320.0:
		tmp = y * 3.13060547623
	else:
		tmp = x
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (x <= -52000000.0)
		tmp = x;
	elseif (x <= 320.0)
		tmp = Float64(y * 3.13060547623);
	else
		tmp = x;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (x <= -52000000.0)
		tmp = x;
	elseif (x <= 320.0)
		tmp = y * 3.13060547623;
	else
		tmp = x;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[x, -52000000.0], x, If[LessEqual[x, 320.0], N[(y * 3.13060547623), $MachinePrecision], x]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq -52000000:\\
\;\;\;\;x\\

\mathbf{elif}\;x \leq 320:\\
\;\;\;\;y \cdot 3.13060547623\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < -5.2e7 or 320 < x

    1. Initial program 52.4%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Simplified56.1%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, \frac{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right)}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)}, x\right)} \]
    3. Add Preprocessing
    4. Taylor expanded in y around 0 68.8%

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

    if -5.2e7 < x < 320

    1. Initial program 60.0%

      \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
    2. Simplified62.8%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, \frac{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right)}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)}, x\right)} \]
    3. Add Preprocessing
    4. Taylor expanded in z around inf 48.9%

      \[\leadsto \mathsf{fma}\left(y, \color{blue}{3.13060547623}, x\right) \]
    5. Taylor expanded in y around inf 37.5%

      \[\leadsto \color{blue}{3.13060547623 \cdot y} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification52.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -52000000:\\ \;\;\;\;x\\ \mathbf{elif}\;x \leq 320:\\ \;\;\;\;y \cdot 3.13060547623\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \]
  5. Add Preprocessing

Alternative 17: 45.4% 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 56.4%

    \[x + \frac{y \cdot \left(\left(\left(\left(z \cdot 3.13060547623 + 11.1667541262\right) \cdot z + t\right) \cdot z + a\right) \cdot z + b\right)}{\left(\left(\left(z + 15.234687407\right) \cdot z + 31.4690115749\right) \cdot z + 11.9400905721\right) \cdot z + 0.607771387771} \]
  2. Simplified59.6%

    \[\leadsto \color{blue}{\mathsf{fma}\left(y, \frac{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, 3.13060547623, 11.1667541262\right), t\right), a\right), b\right)}{\mathsf{fma}\left(z, \mathsf{fma}\left(z, \mathsf{fma}\left(z, z + 15.234687407, 31.4690115749\right), 11.9400905721\right), 0.607771387771\right)}, x\right)} \]
  3. Add Preprocessing
  4. Taylor expanded in y around 0 40.8%

    \[\leadsto \color{blue}{x} \]
  5. 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 2024132 
(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))))