Diagrams.Solve.Polynomial:cubForm from diagrams-solve-0.1, J

Percentage Accurate: 79.7% → 83.2%
Time: 14.1s
Alternatives: 14
Speedup: 0.7×

Specification

?
\[\begin{array}{l} \\ \frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \end{array} \]
(FPCore (x y z t a b c)
 :precision binary64
 (/ (+ (- (* (* x 9.0) y) (* (* (* z 4.0) t) a)) b) (* z c)))
double code(double x, double y, double z, double t, double a, double b, double c) {
	return ((((x * 9.0) * y) - (((z * 4.0) * t) * a)) + b) / (z * c);
}
real(8) function code(x, y, z, t, a, b, c)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    code = ((((x * 9.0d0) * y) - (((z * 4.0d0) * t) * a)) + b) / (z * c)
end function
public static double code(double x, double y, double z, double t, double a, double b, double c) {
	return ((((x * 9.0) * y) - (((z * 4.0) * t) * a)) + b) / (z * c);
}
def code(x, y, z, t, a, b, c):
	return ((((x * 9.0) * y) - (((z * 4.0) * t) * a)) + b) / (z * c)
function code(x, y, z, t, a, b, c)
	return Float64(Float64(Float64(Float64(Float64(x * 9.0) * y) - Float64(Float64(Float64(z * 4.0) * t) * a)) + b) / Float64(z * c))
end
function tmp = code(x, y, z, t, a, b, c)
	tmp = ((((x * 9.0) * y) - (((z * 4.0) * t) * a)) + b) / (z * c);
end
code[x_, y_, z_, t_, a_, b_, c_] := N[(N[(N[(N[(N[(x * 9.0), $MachinePrecision] * y), $MachinePrecision] - N[(N[(N[(z * 4.0), $MachinePrecision] * t), $MachinePrecision] * a), $MachinePrecision]), $MachinePrecision] + b), $MachinePrecision] / N[(z * c), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c}
\end{array}

Sampling outcomes in binary64 precision:

Local Percentage Accuracy vs ?

The average percentage accuracy by input value. Horizontal axis shows value of an input variable; the variable is choosen in the title. Vertical axis is accuracy; higher is better. Red represent the original program, while blue represents Herbie's suggestion. These can be toggled with buttons below the plot. The line is an average while dots represent individual samples.

Accuracy vs Speed?

Herbie found 14 alternatives:

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

Initial Program: 79.7% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \end{array} \]
(FPCore (x y z t a b c)
 :precision binary64
 (/ (+ (- (* (* x 9.0) y) (* (* (* z 4.0) t) a)) b) (* z c)))
double code(double x, double y, double z, double t, double a, double b, double c) {
	return ((((x * 9.0) * y) - (((z * 4.0) * t) * a)) + b) / (z * c);
}
real(8) function code(x, y, z, t, a, b, c)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    code = ((((x * 9.0d0) * y) - (((z * 4.0d0) * t) * a)) + b) / (z * c)
end function
public static double code(double x, double y, double z, double t, double a, double b, double c) {
	return ((((x * 9.0) * y) - (((z * 4.0) * t) * a)) + b) / (z * c);
}
def code(x, y, z, t, a, b, c):
	return ((((x * 9.0) * y) - (((z * 4.0) * t) * a)) + b) / (z * c)
function code(x, y, z, t, a, b, c)
	return Float64(Float64(Float64(Float64(Float64(x * 9.0) * y) - Float64(Float64(Float64(z * 4.0) * t) * a)) + b) / Float64(z * c))
end
function tmp = code(x, y, z, t, a, b, c)
	tmp = ((((x * 9.0) * y) - (((z * 4.0) * t) * a)) + b) / (z * c);
end
code[x_, y_, z_, t_, a_, b_, c_] := N[(N[(N[(N[(N[(x * 9.0), $MachinePrecision] * y), $MachinePrecision] - N[(N[(N[(z * 4.0), $MachinePrecision] * t), $MachinePrecision] * a), $MachinePrecision]), $MachinePrecision] + b), $MachinePrecision] / N[(z * c), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c}
\end{array}

Alternative 1: 83.2% accurate, 0.1× speedup?

\[\begin{array}{l} c\_m = \left|c\right| \\ c\_s = \mathsf{copysign}\left(1, c\right) \\ [x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\\\ [x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\ \\ \begin{array}{l} t_1 := \frac{\left(y \cdot \left(x \cdot 9\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c\_m}\\ c\_s \cdot \begin{array}{l} \mathbf{if}\;t\_1 \leq -2 \cdot 10^{+271}:\\ \;\;\;\;x \cdot \left(\left(9 \cdot \frac{y}{z \cdot c\_m} + \frac{b}{c\_m \cdot \left(x \cdot z\right)}\right) - 4 \cdot \frac{t \cdot a}{x \cdot c\_m}\right)\\ \mathbf{elif}\;t\_1 \leq 4 \cdot 10^{-219}:\\ \;\;\;\;\frac{-4 \cdot \frac{a \cdot \left(z \cdot t\right)}{c\_m} + \left(9 \cdot \frac{x \cdot y}{c\_m} + \frac{b}{c\_m}\right)}{z}\\ \mathbf{elif}\;t\_1 \leq \infty:\\ \;\;\;\;\frac{b + \mathsf{fma}\left(x, 9 \cdot y, t \cdot \left(a \cdot \left(z \cdot -4\right)\right)\right)}{z \cdot c\_m}\\ \mathbf{else}:\\ \;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c\_m}\right)\\ \end{array} \end{array} \end{array} \]
c\_m = (fabs.f64 c)
c\_s = (copysign.f64 #s(literal 1 binary64) c)
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
(FPCore (c_s x y z t a b c_m)
 :precision binary64
 (let* ((t_1 (/ (+ (- (* y (* x 9.0)) (* (* (* z 4.0) t) a)) b) (* z c_m))))
   (*
    c_s
    (if (<= t_1 -2e+271)
      (*
       x
       (-
        (+ (* 9.0 (/ y (* z c_m))) (/ b (* c_m (* x z))))
        (* 4.0 (/ (* t a) (* x c_m)))))
      (if (<= t_1 4e-219)
        (/
         (+
          (* -4.0 (/ (* a (* z t)) c_m))
          (+ (* 9.0 (/ (* x y) c_m)) (/ b c_m)))
         z)
        (if (<= t_1 INFINITY)
          (/ (+ b (fma x (* 9.0 y) (* t (* a (* z -4.0))))) (* z c_m))
          (* -4.0 (* t (/ a c_m)))))))))
c\_m = fabs(c);
c\_s = copysign(1.0, c);
assert(x < y && y < z && z < t && t < a && a < b && b < c_m);
assert(x < y && y < z && z < t && t < a && a < b && b < c_m);
double code(double c_s, double x, double y, double z, double t, double a, double b, double c_m) {
	double t_1 = (((y * (x * 9.0)) - (((z * 4.0) * t) * a)) + b) / (z * c_m);
	double tmp;
	if (t_1 <= -2e+271) {
		tmp = x * (((9.0 * (y / (z * c_m))) + (b / (c_m * (x * z)))) - (4.0 * ((t * a) / (x * c_m))));
	} else if (t_1 <= 4e-219) {
		tmp = ((-4.0 * ((a * (z * t)) / c_m)) + ((9.0 * ((x * y) / c_m)) + (b / c_m))) / z;
	} else if (t_1 <= ((double) INFINITY)) {
		tmp = (b + fma(x, (9.0 * y), (t * (a * (z * -4.0))))) / (z * c_m);
	} else {
		tmp = -4.0 * (t * (a / c_m));
	}
	return c_s * tmp;
}
c\_m = abs(c)
c\_s = copysign(1.0, c)
x, y, z, t, a, b, c_m = sort([x, y, z, t, a, b, c_m])
x, y, z, t, a, b, c_m = sort([x, y, z, t, a, b, c_m])
function code(c_s, x, y, z, t, a, b, c_m)
	t_1 = Float64(Float64(Float64(Float64(y * Float64(x * 9.0)) - Float64(Float64(Float64(z * 4.0) * t) * a)) + b) / Float64(z * c_m))
	tmp = 0.0
	if (t_1 <= -2e+271)
		tmp = Float64(x * Float64(Float64(Float64(9.0 * Float64(y / Float64(z * c_m))) + Float64(b / Float64(c_m * Float64(x * z)))) - Float64(4.0 * Float64(Float64(t * a) / Float64(x * c_m)))));
	elseif (t_1 <= 4e-219)
		tmp = Float64(Float64(Float64(-4.0 * Float64(Float64(a * Float64(z * t)) / c_m)) + Float64(Float64(9.0 * Float64(Float64(x * y) / c_m)) + Float64(b / c_m))) / z);
	elseif (t_1 <= Inf)
		tmp = Float64(Float64(b + fma(x, Float64(9.0 * y), Float64(t * Float64(a * Float64(z * -4.0))))) / Float64(z * c_m));
	else
		tmp = Float64(-4.0 * Float64(t * Float64(a / c_m)));
	end
	return Float64(c_s * tmp)
end
c\_m = N[Abs[c], $MachinePrecision]
c\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[c]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
code[c$95$s_, x_, y_, z_, t_, a_, b_, c$95$m_] := Block[{t$95$1 = N[(N[(N[(N[(y * N[(x * 9.0), $MachinePrecision]), $MachinePrecision] - N[(N[(N[(z * 4.0), $MachinePrecision] * t), $MachinePrecision] * a), $MachinePrecision]), $MachinePrecision] + b), $MachinePrecision] / N[(z * c$95$m), $MachinePrecision]), $MachinePrecision]}, N[(c$95$s * If[LessEqual[t$95$1, -2e+271], N[(x * N[(N[(N[(9.0 * N[(y / N[(z * c$95$m), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(b / N[(c$95$m * N[(x * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - N[(4.0 * N[(N[(t * a), $MachinePrecision] / N[(x * c$95$m), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[t$95$1, 4e-219], N[(N[(N[(-4.0 * N[(N[(a * N[(z * t), $MachinePrecision]), $MachinePrecision] / c$95$m), $MachinePrecision]), $MachinePrecision] + N[(N[(9.0 * N[(N[(x * y), $MachinePrecision] / c$95$m), $MachinePrecision]), $MachinePrecision] + N[(b / c$95$m), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / z), $MachinePrecision], If[LessEqual[t$95$1, Infinity], N[(N[(b + N[(x * N[(9.0 * y), $MachinePrecision] + N[(t * N[(a * N[(z * -4.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(z * c$95$m), $MachinePrecision]), $MachinePrecision], N[(-4.0 * N[(t * N[(a / c$95$m), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]), $MachinePrecision]]
\begin{array}{l}
c\_m = \left|c\right|
\\
c\_s = \mathsf{copysign}\left(1, c\right)
\\
[x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\\\
[x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\
\\
\begin{array}{l}
t_1 := \frac{\left(y \cdot \left(x \cdot 9\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c\_m}\\
c\_s \cdot \begin{array}{l}
\mathbf{if}\;t\_1 \leq -2 \cdot 10^{+271}:\\
\;\;\;\;x \cdot \left(\left(9 \cdot \frac{y}{z \cdot c\_m} + \frac{b}{c\_m \cdot \left(x \cdot z\right)}\right) - 4 \cdot \frac{t \cdot a}{x \cdot c\_m}\right)\\

\mathbf{elif}\;t\_1 \leq 4 \cdot 10^{-219}:\\
\;\;\;\;\frac{-4 \cdot \frac{a \cdot \left(z \cdot t\right)}{c\_m} + \left(9 \cdot \frac{x \cdot y}{c\_m} + \frac{b}{c\_m}\right)}{z}\\

\mathbf{elif}\;t\_1 \leq \infty:\\
\;\;\;\;\frac{b + \mathsf{fma}\left(x, 9 \cdot y, t \cdot \left(a \cdot \left(z \cdot -4\right)\right)\right)}{z \cdot c\_m}\\

\mathbf{else}:\\
\;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c\_m}\right)\\


\end{array}
\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if (/.f64 (+.f64 (-.f64 (*.f64 (*.f64 x #s(literal 9 binary64)) y) (*.f64 (*.f64 (*.f64 z #s(literal 4 binary64)) t) a)) b) (*.f64 z c)) < -1.99999999999999991e271

    1. Initial program 84.4%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative84.4%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-84.4%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative84.4%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*91.4%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative91.4%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-91.4%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative91.4%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*91.4%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*87.8%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative87.8%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified87.8%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 58.7%

      \[\leadsto \color{blue}{x \cdot \left(\left(9 \cdot \frac{y}{c \cdot z} + \frac{b}{c \cdot \left(x \cdot z\right)}\right) - 4 \cdot \frac{a \cdot t}{c \cdot x}\right)} \]

    if -1.99999999999999991e271 < (/.f64 (+.f64 (-.f64 (*.f64 (*.f64 x #s(literal 9 binary64)) y) (*.f64 (*.f64 (*.f64 z #s(literal 4 binary64)) t) a)) b) (*.f64 z c)) < 4.0000000000000001e-219

    1. Initial program 85.5%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative85.5%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-85.5%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative85.5%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*85.2%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative85.2%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-85.2%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative85.2%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*85.2%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*84.3%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative84.3%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified84.3%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 97.0%

      \[\leadsto \color{blue}{\frac{-4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c} + \left(9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}\right)}{z}} \]

    if 4.0000000000000001e-219 < (/.f64 (+.f64 (-.f64 (*.f64 (*.f64 x #s(literal 9 binary64)) y) (*.f64 (*.f64 (*.f64 z #s(literal 4 binary64)) t) a)) b) (*.f64 z c)) < +inf.0

    1. Initial program 90.0%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Simplified88.1%

      \[\leadsto \color{blue}{\frac{\mathsf{fma}\left(x, 9 \cdot y, t \cdot \left(a \cdot \left(z \cdot -4\right)\right)\right) + b}{z \cdot c}} \]
    3. Add Preprocessing

    if +inf.0 < (/.f64 (+.f64 (-.f64 (*.f64 (*.f64 x #s(literal 9 binary64)) y) (*.f64 (*.f64 (*.f64 z #s(literal 4 binary64)) t) a)) b) (*.f64 z c))

    1. Initial program 0.0%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative0.0%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-0.0%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative0.0%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*0.4%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative0.4%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-0.4%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative0.4%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*0.4%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*0.4%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative0.4%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified0.4%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 3.3%

      \[\leadsto \color{blue}{\frac{-4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c} + \left(9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}\right)}{z}} \]
    6. Taylor expanded in a around inf 40.0%

      \[\leadsto \color{blue}{-4 \cdot \frac{a \cdot t}{c}} \]
    7. Step-by-step derivation
      1. *-commutative40.0%

        \[\leadsto -4 \cdot \frac{\color{blue}{t \cdot a}}{c} \]
      2. associate-/l*69.6%

        \[\leadsto -4 \cdot \color{blue}{\left(t \cdot \frac{a}{c}\right)} \]
    8. Simplified69.6%

      \[\leadsto \color{blue}{-4 \cdot \left(t \cdot \frac{a}{c}\right)} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification83.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{\left(y \cdot \left(x \cdot 9\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \leq -2 \cdot 10^{+271}:\\ \;\;\;\;x \cdot \left(\left(9 \cdot \frac{y}{z \cdot c} + \frac{b}{c \cdot \left(x \cdot z\right)}\right) - 4 \cdot \frac{t \cdot a}{x \cdot c}\right)\\ \mathbf{elif}\;\frac{\left(y \cdot \left(x \cdot 9\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \leq 4 \cdot 10^{-219}:\\ \;\;\;\;\frac{-4 \cdot \frac{a \cdot \left(z \cdot t\right)}{c} + \left(9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}\right)}{z}\\ \mathbf{elif}\;\frac{\left(y \cdot \left(x \cdot 9\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \leq \infty:\\ \;\;\;\;\frac{b + \mathsf{fma}\left(x, 9 \cdot y, t \cdot \left(a \cdot \left(z \cdot -4\right)\right)\right)}{z \cdot c}\\ \mathbf{else}:\\ \;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c}\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 2: 87.0% accurate, 0.2× speedup?

\[\begin{array}{l} c\_m = \left|c\right| \\ c\_s = \mathsf{copysign}\left(1, c\right) \\ [x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\\\ [x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\ \\ \begin{array}{l} t_1 := \frac{\left(y \cdot \left(x \cdot 9\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c\_m}\\ t_2 := \frac{b + \left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right)}{z \cdot c\_m}\\ c\_s \cdot \begin{array}{l} \mathbf{if}\;t\_1 \leq -1 \cdot 10^{-124}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;t\_1 \leq 2 \cdot 10^{-264}:\\ \;\;\;\;\frac{-4 \cdot \frac{a \cdot \left(z \cdot t\right)}{c\_m} + \frac{b}{c\_m}}{z}\\ \mathbf{elif}\;t\_1 \leq \infty:\\ \;\;\;\;t\_2\\ \mathbf{else}:\\ \;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c\_m}\right)\\ \end{array} \end{array} \end{array} \]
c\_m = (fabs.f64 c)
c\_s = (copysign.f64 #s(literal 1 binary64) c)
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
(FPCore (c_s x y z t a b c_m)
 :precision binary64
 (let* ((t_1 (/ (+ (- (* y (* x 9.0)) (* (* (* z 4.0) t) a)) b) (* z c_m)))
        (t_2 (/ (+ b (- (* x (* 9.0 y)) (* (* z 4.0) (* t a)))) (* z c_m))))
   (*
    c_s
    (if (<= t_1 -1e-124)
      t_2
      (if (<= t_1 2e-264)
        (/ (+ (* -4.0 (/ (* a (* z t)) c_m)) (/ b c_m)) z)
        (if (<= t_1 INFINITY) t_2 (* -4.0 (* t (/ a c_m)))))))))
c\_m = fabs(c);
c\_s = copysign(1.0, c);
assert(x < y && y < z && z < t && t < a && a < b && b < c_m);
assert(x < y && y < z && z < t && t < a && a < b && b < c_m);
double code(double c_s, double x, double y, double z, double t, double a, double b, double c_m) {
	double t_1 = (((y * (x * 9.0)) - (((z * 4.0) * t) * a)) + b) / (z * c_m);
	double t_2 = (b + ((x * (9.0 * y)) - ((z * 4.0) * (t * a)))) / (z * c_m);
	double tmp;
	if (t_1 <= -1e-124) {
		tmp = t_2;
	} else if (t_1 <= 2e-264) {
		tmp = ((-4.0 * ((a * (z * t)) / c_m)) + (b / c_m)) / z;
	} else if (t_1 <= ((double) INFINITY)) {
		tmp = t_2;
	} else {
		tmp = -4.0 * (t * (a / c_m));
	}
	return c_s * tmp;
}
c\_m = Math.abs(c);
c\_s = Math.copySign(1.0, c);
assert x < y && y < z && z < t && t < a && a < b && b < c_m;
assert x < y && y < z && z < t && t < a && a < b && b < c_m;
public static double code(double c_s, double x, double y, double z, double t, double a, double b, double c_m) {
	double t_1 = (((y * (x * 9.0)) - (((z * 4.0) * t) * a)) + b) / (z * c_m);
	double t_2 = (b + ((x * (9.0 * y)) - ((z * 4.0) * (t * a)))) / (z * c_m);
	double tmp;
	if (t_1 <= -1e-124) {
		tmp = t_2;
	} else if (t_1 <= 2e-264) {
		tmp = ((-4.0 * ((a * (z * t)) / c_m)) + (b / c_m)) / z;
	} else if (t_1 <= Double.POSITIVE_INFINITY) {
		tmp = t_2;
	} else {
		tmp = -4.0 * (t * (a / c_m));
	}
	return c_s * tmp;
}
c\_m = math.fabs(c)
c\_s = math.copysign(1.0, c)
[x, y, z, t, a, b, c_m] = sort([x, y, z, t, a, b, c_m])
[x, y, z, t, a, b, c_m] = sort([x, y, z, t, a, b, c_m])
def code(c_s, x, y, z, t, a, b, c_m):
	t_1 = (((y * (x * 9.0)) - (((z * 4.0) * t) * a)) + b) / (z * c_m)
	t_2 = (b + ((x * (9.0 * y)) - ((z * 4.0) * (t * a)))) / (z * c_m)
	tmp = 0
	if t_1 <= -1e-124:
		tmp = t_2
	elif t_1 <= 2e-264:
		tmp = ((-4.0 * ((a * (z * t)) / c_m)) + (b / c_m)) / z
	elif t_1 <= math.inf:
		tmp = t_2
	else:
		tmp = -4.0 * (t * (a / c_m))
	return c_s * tmp
c\_m = abs(c)
c\_s = copysign(1.0, c)
x, y, z, t, a, b, c_m = sort([x, y, z, t, a, b, c_m])
x, y, z, t, a, b, c_m = sort([x, y, z, t, a, b, c_m])
function code(c_s, x, y, z, t, a, b, c_m)
	t_1 = Float64(Float64(Float64(Float64(y * Float64(x * 9.0)) - Float64(Float64(Float64(z * 4.0) * t) * a)) + b) / Float64(z * c_m))
	t_2 = Float64(Float64(b + Float64(Float64(x * Float64(9.0 * y)) - Float64(Float64(z * 4.0) * Float64(t * a)))) / Float64(z * c_m))
	tmp = 0.0
	if (t_1 <= -1e-124)
		tmp = t_2;
	elseif (t_1 <= 2e-264)
		tmp = Float64(Float64(Float64(-4.0 * Float64(Float64(a * Float64(z * t)) / c_m)) + Float64(b / c_m)) / z);
	elseif (t_1 <= Inf)
		tmp = t_2;
	else
		tmp = Float64(-4.0 * Float64(t * Float64(a / c_m)));
	end
	return Float64(c_s * tmp)
end
c\_m = abs(c);
c\_s = sign(c) * abs(1.0);
x, y, z, t, a, b, c_m = num2cell(sort([x, y, z, t, a, b, c_m])){:}
x, y, z, t, a, b, c_m = num2cell(sort([x, y, z, t, a, b, c_m])){:}
function tmp_2 = code(c_s, x, y, z, t, a, b, c_m)
	t_1 = (((y * (x * 9.0)) - (((z * 4.0) * t) * a)) + b) / (z * c_m);
	t_2 = (b + ((x * (9.0 * y)) - ((z * 4.0) * (t * a)))) / (z * c_m);
	tmp = 0.0;
	if (t_1 <= -1e-124)
		tmp = t_2;
	elseif (t_1 <= 2e-264)
		tmp = ((-4.0 * ((a * (z * t)) / c_m)) + (b / c_m)) / z;
	elseif (t_1 <= Inf)
		tmp = t_2;
	else
		tmp = -4.0 * (t * (a / c_m));
	end
	tmp_2 = c_s * tmp;
end
c\_m = N[Abs[c], $MachinePrecision]
c\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[c]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
code[c$95$s_, x_, y_, z_, t_, a_, b_, c$95$m_] := Block[{t$95$1 = N[(N[(N[(N[(y * N[(x * 9.0), $MachinePrecision]), $MachinePrecision] - N[(N[(N[(z * 4.0), $MachinePrecision] * t), $MachinePrecision] * a), $MachinePrecision]), $MachinePrecision] + b), $MachinePrecision] / N[(z * c$95$m), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(N[(b + N[(N[(x * N[(9.0 * y), $MachinePrecision]), $MachinePrecision] - N[(N[(z * 4.0), $MachinePrecision] * N[(t * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(z * c$95$m), $MachinePrecision]), $MachinePrecision]}, N[(c$95$s * If[LessEqual[t$95$1, -1e-124], t$95$2, If[LessEqual[t$95$1, 2e-264], N[(N[(N[(-4.0 * N[(N[(a * N[(z * t), $MachinePrecision]), $MachinePrecision] / c$95$m), $MachinePrecision]), $MachinePrecision] + N[(b / c$95$m), $MachinePrecision]), $MachinePrecision] / z), $MachinePrecision], If[LessEqual[t$95$1, Infinity], t$95$2, N[(-4.0 * N[(t * N[(a / c$95$m), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]), $MachinePrecision]]]
\begin{array}{l}
c\_m = \left|c\right|
\\
c\_s = \mathsf{copysign}\left(1, c\right)
\\
[x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\\\
[x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\
\\
\begin{array}{l}
t_1 := \frac{\left(y \cdot \left(x \cdot 9\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c\_m}\\
t_2 := \frac{b + \left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right)}{z \cdot c\_m}\\
c\_s \cdot \begin{array}{l}
\mathbf{if}\;t\_1 \leq -1 \cdot 10^{-124}:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;t\_1 \leq 2 \cdot 10^{-264}:\\
\;\;\;\;\frac{-4 \cdot \frac{a \cdot \left(z \cdot t\right)}{c\_m} + \frac{b}{c\_m}}{z}\\

\mathbf{elif}\;t\_1 \leq \infty:\\
\;\;\;\;t\_2\\

\mathbf{else}:\\
\;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c\_m}\right)\\


\end{array}
\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if (/.f64 (+.f64 (-.f64 (*.f64 (*.f64 x #s(literal 9 binary64)) y) (*.f64 (*.f64 (*.f64 z #s(literal 4 binary64)) t) a)) b) (*.f64 z c)) < -9.99999999999999933e-125 or 2e-264 < (/.f64 (+.f64 (-.f64 (*.f64 (*.f64 x #s(literal 9 binary64)) y) (*.f64 (*.f64 (*.f64 z #s(literal 4 binary64)) t) a)) b) (*.f64 z c)) < +inf.0

    1. Initial program 90.4%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative90.4%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-90.4%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative90.4%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*90.8%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative90.8%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-90.8%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative90.8%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*90.8%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*90.9%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative90.9%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified90.9%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing

    if -9.99999999999999933e-125 < (/.f64 (+.f64 (-.f64 (*.f64 (*.f64 x #s(literal 9 binary64)) y) (*.f64 (*.f64 (*.f64 z #s(literal 4 binary64)) t) a)) b) (*.f64 z c)) < 2e-264

    1. Initial program 68.8%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative68.8%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-68.8%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative68.8%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*70.9%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative70.9%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-70.9%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative70.9%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*71.0%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*71.4%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative71.4%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified71.4%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 97.0%

      \[\leadsto \color{blue}{\frac{-4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c} + \left(9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}\right)}{z}} \]
    6. Taylor expanded in x around 0 81.1%

      \[\leadsto \color{blue}{\frac{-4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c} + \frac{b}{c}}{z}} \]

    if +inf.0 < (/.f64 (+.f64 (-.f64 (*.f64 (*.f64 x #s(literal 9 binary64)) y) (*.f64 (*.f64 (*.f64 z #s(literal 4 binary64)) t) a)) b) (*.f64 z c))

    1. Initial program 0.0%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative0.0%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-0.0%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative0.0%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*0.4%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative0.4%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-0.4%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative0.4%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*0.4%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*0.4%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative0.4%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified0.4%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 3.3%

      \[\leadsto \color{blue}{\frac{-4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c} + \left(9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}\right)}{z}} \]
    6. Taylor expanded in a around inf 40.0%

      \[\leadsto \color{blue}{-4 \cdot \frac{a \cdot t}{c}} \]
    7. Step-by-step derivation
      1. *-commutative40.0%

        \[\leadsto -4 \cdot \frac{\color{blue}{t \cdot a}}{c} \]
      2. associate-/l*69.6%

        \[\leadsto -4 \cdot \color{blue}{\left(t \cdot \frac{a}{c}\right)} \]
    8. Simplified69.6%

      \[\leadsto \color{blue}{-4 \cdot \left(t \cdot \frac{a}{c}\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification88.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{\left(y \cdot \left(x \cdot 9\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \leq -1 \cdot 10^{-124}:\\ \;\;\;\;\frac{b + \left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right)}{z \cdot c}\\ \mathbf{elif}\;\frac{\left(y \cdot \left(x \cdot 9\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \leq 2 \cdot 10^{-264}:\\ \;\;\;\;\frac{-4 \cdot \frac{a \cdot \left(z \cdot t\right)}{c} + \frac{b}{c}}{z}\\ \mathbf{elif}\;\frac{\left(y \cdot \left(x \cdot 9\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \leq \infty:\\ \;\;\;\;\frac{b + \left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right)}{z \cdot c}\\ \mathbf{else}:\\ \;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c}\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 3: 49.0% accurate, 0.4× speedup?

\[\begin{array}{l} c\_m = \left|c\right| \\ c\_s = \mathsf{copysign}\left(1, c\right) \\ [x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\\\ [x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\ \\ \begin{array}{l} t_1 := -4 \cdot \left(t \cdot \frac{a}{c\_m}\right)\\ t_2 := 9 \cdot \left(\frac{x}{c\_m} \cdot \frac{y}{z}\right)\\ c\_s \cdot \begin{array}{l} \mathbf{if}\;y \leq -1.25 \cdot 10^{-99}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;y \leq -9 \cdot 10^{-297}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;y \leq 2.15 \cdot 10^{-209}:\\ \;\;\;\;\frac{b}{z} \cdot \frac{1}{c\_m}\\ \mathbf{elif}\;y \leq 4.5 \cdot 10^{-183}:\\ \;\;\;\;-4 \cdot \frac{t \cdot a}{c\_m}\\ \mathbf{elif}\;y \leq 1.12 \cdot 10^{-32}:\\ \;\;\;\;b \cdot \frac{1}{z \cdot c\_m}\\ \mathbf{elif}\;y \leq 3.6 \cdot 10^{+60} \lor \neg \left(y \leq 4.5 \cdot 10^{+113}\right) \land y \leq 4.8 \cdot 10^{+132}:\\ \;\;\;\;t\_1\\ \mathbf{else}:\\ \;\;\;\;t\_2\\ \end{array} \end{array} \end{array} \]
c\_m = (fabs.f64 c)
c\_s = (copysign.f64 #s(literal 1 binary64) c)
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
(FPCore (c_s x y z t a b c_m)
 :precision binary64
 (let* ((t_1 (* -4.0 (* t (/ a c_m)))) (t_2 (* 9.0 (* (/ x c_m) (/ y z)))))
   (*
    c_s
    (if (<= y -1.25e-99)
      t_2
      (if (<= y -9e-297)
        t_1
        (if (<= y 2.15e-209)
          (* (/ b z) (/ 1.0 c_m))
          (if (<= y 4.5e-183)
            (* -4.0 (/ (* t a) c_m))
            (if (<= y 1.12e-32)
              (* b (/ 1.0 (* z c_m)))
              (if (or (<= y 3.6e+60)
                      (and (not (<= y 4.5e+113)) (<= y 4.8e+132)))
                t_1
                t_2)))))))))
c\_m = fabs(c);
c\_s = copysign(1.0, c);
assert(x < y && y < z && z < t && t < a && a < b && b < c_m);
assert(x < y && y < z && z < t && t < a && a < b && b < c_m);
double code(double c_s, double x, double y, double z, double t, double a, double b, double c_m) {
	double t_1 = -4.0 * (t * (a / c_m));
	double t_2 = 9.0 * ((x / c_m) * (y / z));
	double tmp;
	if (y <= -1.25e-99) {
		tmp = t_2;
	} else if (y <= -9e-297) {
		tmp = t_1;
	} else if (y <= 2.15e-209) {
		tmp = (b / z) * (1.0 / c_m);
	} else if (y <= 4.5e-183) {
		tmp = -4.0 * ((t * a) / c_m);
	} else if (y <= 1.12e-32) {
		tmp = b * (1.0 / (z * c_m));
	} else if ((y <= 3.6e+60) || (!(y <= 4.5e+113) && (y <= 4.8e+132))) {
		tmp = t_1;
	} else {
		tmp = t_2;
	}
	return c_s * tmp;
}
c\_m = abs(c)
c\_s = copysign(1.0d0, c)
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
real(8) function code(c_s, x, y, z, t, a, b, c_m)
    real(8), intent (in) :: c_s
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c_m
    real(8) :: t_1
    real(8) :: t_2
    real(8) :: tmp
    t_1 = (-4.0d0) * (t * (a / c_m))
    t_2 = 9.0d0 * ((x / c_m) * (y / z))
    if (y <= (-1.25d-99)) then
        tmp = t_2
    else if (y <= (-9d-297)) then
        tmp = t_1
    else if (y <= 2.15d-209) then
        tmp = (b / z) * (1.0d0 / c_m)
    else if (y <= 4.5d-183) then
        tmp = (-4.0d0) * ((t * a) / c_m)
    else if (y <= 1.12d-32) then
        tmp = b * (1.0d0 / (z * c_m))
    else if ((y <= 3.6d+60) .or. (.not. (y <= 4.5d+113)) .and. (y <= 4.8d+132)) then
        tmp = t_1
    else
        tmp = t_2
    end if
    code = c_s * tmp
end function
c\_m = Math.abs(c);
c\_s = Math.copySign(1.0, c);
assert x < y && y < z && z < t && t < a && a < b && b < c_m;
assert x < y && y < z && z < t && t < a && a < b && b < c_m;
public static double code(double c_s, double x, double y, double z, double t, double a, double b, double c_m) {
	double t_1 = -4.0 * (t * (a / c_m));
	double t_2 = 9.0 * ((x / c_m) * (y / z));
	double tmp;
	if (y <= -1.25e-99) {
		tmp = t_2;
	} else if (y <= -9e-297) {
		tmp = t_1;
	} else if (y <= 2.15e-209) {
		tmp = (b / z) * (1.0 / c_m);
	} else if (y <= 4.5e-183) {
		tmp = -4.0 * ((t * a) / c_m);
	} else if (y <= 1.12e-32) {
		tmp = b * (1.0 / (z * c_m));
	} else if ((y <= 3.6e+60) || (!(y <= 4.5e+113) && (y <= 4.8e+132))) {
		tmp = t_1;
	} else {
		tmp = t_2;
	}
	return c_s * tmp;
}
c\_m = math.fabs(c)
c\_s = math.copysign(1.0, c)
[x, y, z, t, a, b, c_m] = sort([x, y, z, t, a, b, c_m])
[x, y, z, t, a, b, c_m] = sort([x, y, z, t, a, b, c_m])
def code(c_s, x, y, z, t, a, b, c_m):
	t_1 = -4.0 * (t * (a / c_m))
	t_2 = 9.0 * ((x / c_m) * (y / z))
	tmp = 0
	if y <= -1.25e-99:
		tmp = t_2
	elif y <= -9e-297:
		tmp = t_1
	elif y <= 2.15e-209:
		tmp = (b / z) * (1.0 / c_m)
	elif y <= 4.5e-183:
		tmp = -4.0 * ((t * a) / c_m)
	elif y <= 1.12e-32:
		tmp = b * (1.0 / (z * c_m))
	elif (y <= 3.6e+60) or (not (y <= 4.5e+113) and (y <= 4.8e+132)):
		tmp = t_1
	else:
		tmp = t_2
	return c_s * tmp
c\_m = abs(c)
c\_s = copysign(1.0, c)
x, y, z, t, a, b, c_m = sort([x, y, z, t, a, b, c_m])
x, y, z, t, a, b, c_m = sort([x, y, z, t, a, b, c_m])
function code(c_s, x, y, z, t, a, b, c_m)
	t_1 = Float64(-4.0 * Float64(t * Float64(a / c_m)))
	t_2 = Float64(9.0 * Float64(Float64(x / c_m) * Float64(y / z)))
	tmp = 0.0
	if (y <= -1.25e-99)
		tmp = t_2;
	elseif (y <= -9e-297)
		tmp = t_1;
	elseif (y <= 2.15e-209)
		tmp = Float64(Float64(b / z) * Float64(1.0 / c_m));
	elseif (y <= 4.5e-183)
		tmp = Float64(-4.0 * Float64(Float64(t * a) / c_m));
	elseif (y <= 1.12e-32)
		tmp = Float64(b * Float64(1.0 / Float64(z * c_m)));
	elseif ((y <= 3.6e+60) || (!(y <= 4.5e+113) && (y <= 4.8e+132)))
		tmp = t_1;
	else
		tmp = t_2;
	end
	return Float64(c_s * tmp)
end
c\_m = abs(c);
c\_s = sign(c) * abs(1.0);
x, y, z, t, a, b, c_m = num2cell(sort([x, y, z, t, a, b, c_m])){:}
x, y, z, t, a, b, c_m = num2cell(sort([x, y, z, t, a, b, c_m])){:}
function tmp_2 = code(c_s, x, y, z, t, a, b, c_m)
	t_1 = -4.0 * (t * (a / c_m));
	t_2 = 9.0 * ((x / c_m) * (y / z));
	tmp = 0.0;
	if (y <= -1.25e-99)
		tmp = t_2;
	elseif (y <= -9e-297)
		tmp = t_1;
	elseif (y <= 2.15e-209)
		tmp = (b / z) * (1.0 / c_m);
	elseif (y <= 4.5e-183)
		tmp = -4.0 * ((t * a) / c_m);
	elseif (y <= 1.12e-32)
		tmp = b * (1.0 / (z * c_m));
	elseif ((y <= 3.6e+60) || (~((y <= 4.5e+113)) && (y <= 4.8e+132)))
		tmp = t_1;
	else
		tmp = t_2;
	end
	tmp_2 = c_s * tmp;
end
c\_m = N[Abs[c], $MachinePrecision]
c\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[c]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
code[c$95$s_, x_, y_, z_, t_, a_, b_, c$95$m_] := Block[{t$95$1 = N[(-4.0 * N[(t * N[(a / c$95$m), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(9.0 * N[(N[(x / c$95$m), $MachinePrecision] * N[(y / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, N[(c$95$s * If[LessEqual[y, -1.25e-99], t$95$2, If[LessEqual[y, -9e-297], t$95$1, If[LessEqual[y, 2.15e-209], N[(N[(b / z), $MachinePrecision] * N[(1.0 / c$95$m), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 4.5e-183], N[(-4.0 * N[(N[(t * a), $MachinePrecision] / c$95$m), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 1.12e-32], N[(b * N[(1.0 / N[(z * c$95$m), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[Or[LessEqual[y, 3.6e+60], And[N[Not[LessEqual[y, 4.5e+113]], $MachinePrecision], LessEqual[y, 4.8e+132]]], t$95$1, t$95$2]]]]]]), $MachinePrecision]]]
\begin{array}{l}
c\_m = \left|c\right|
\\
c\_s = \mathsf{copysign}\left(1, c\right)
\\
[x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\\\
[x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\
\\
\begin{array}{l}
t_1 := -4 \cdot \left(t \cdot \frac{a}{c\_m}\right)\\
t_2 := 9 \cdot \left(\frac{x}{c\_m} \cdot \frac{y}{z}\right)\\
c\_s \cdot \begin{array}{l}
\mathbf{if}\;y \leq -1.25 \cdot 10^{-99}:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;y \leq -9 \cdot 10^{-297}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;y \leq 2.15 \cdot 10^{-209}:\\
\;\;\;\;\frac{b}{z} \cdot \frac{1}{c\_m}\\

\mathbf{elif}\;y \leq 4.5 \cdot 10^{-183}:\\
\;\;\;\;-4 \cdot \frac{t \cdot a}{c\_m}\\

\mathbf{elif}\;y \leq 1.12 \cdot 10^{-32}:\\
\;\;\;\;b \cdot \frac{1}{z \cdot c\_m}\\

\mathbf{elif}\;y \leq 3.6 \cdot 10^{+60} \lor \neg \left(y \leq 4.5 \cdot 10^{+113}\right) \land y \leq 4.8 \cdot 10^{+132}:\\
\;\;\;\;t\_1\\

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


\end{array}
\end{array}
\end{array}
Derivation
  1. Split input into 5 regimes
  2. if y < -1.24999999999999992e-99 or 3.59999999999999968e60 < y < 4.5000000000000001e113 or 4.8000000000000002e132 < y

    1. Initial program 85.8%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative85.8%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-85.8%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative85.8%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*84.2%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative84.2%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-84.2%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative84.2%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*84.2%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*84.3%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative84.3%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified84.3%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 80.2%

      \[\leadsto \color{blue}{\frac{-4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c} + \left(9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}\right)}{z}} \]
    6. Taylor expanded in x around inf 55.9%

      \[\leadsto \color{blue}{9 \cdot \frac{x \cdot y}{c \cdot z}} \]
    7. Step-by-step derivation
      1. times-frac53.2%

        \[\leadsto 9 \cdot \color{blue}{\left(\frac{x}{c} \cdot \frac{y}{z}\right)} \]
    8. Simplified53.2%

      \[\leadsto \color{blue}{9 \cdot \left(\frac{x}{c} \cdot \frac{y}{z}\right)} \]

    if -1.24999999999999992e-99 < y < -8.99999999999999951e-297 or 1.12e-32 < y < 3.59999999999999968e60 or 4.5000000000000001e113 < y < 4.8000000000000002e132

    1. Initial program 72.2%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative72.2%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-72.2%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative72.2%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*73.4%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative73.4%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-73.4%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative73.4%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*73.5%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*77.5%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative77.5%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified77.5%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 74.5%

      \[\leadsto \color{blue}{\frac{-4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c} + \left(9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}\right)}{z}} \]
    6. Taylor expanded in a around inf 58.3%

      \[\leadsto \color{blue}{-4 \cdot \frac{a \cdot t}{c}} \]
    7. Step-by-step derivation
      1. *-commutative58.3%

        \[\leadsto -4 \cdot \frac{\color{blue}{t \cdot a}}{c} \]
      2. associate-/l*63.2%

        \[\leadsto -4 \cdot \color{blue}{\left(t \cdot \frac{a}{c}\right)} \]
    8. Simplified63.2%

      \[\leadsto \color{blue}{-4 \cdot \left(t \cdot \frac{a}{c}\right)} \]

    if -8.99999999999999951e-297 < y < 2.15000000000000003e-209

    1. Initial program 79.0%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative79.0%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-79.0%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative79.0%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*89.1%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative89.1%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-89.1%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative89.1%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*89.1%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*84.2%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative84.2%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified84.2%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Applied egg-rr76.4%

      \[\leadsto \color{blue}{\frac{\mathsf{fma}\left(x, 9 \cdot y, 4 \cdot \left(z \cdot \left(t \cdot a\right)\right)\right) + b}{z} \cdot \frac{1}{c}} \]
    6. Taylor expanded in b around inf 77.0%

      \[\leadsto \color{blue}{\frac{b}{z}} \cdot \frac{1}{c} \]

    if 2.15000000000000003e-209 < y < 4.49999999999999971e-183

    1. Initial program 83.5%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative83.5%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-83.5%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative83.5%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*83.2%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative83.2%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-83.2%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative83.2%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*83.2%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*83.5%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative83.5%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified83.5%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around inf 67.8%

      \[\leadsto \color{blue}{-4 \cdot \frac{a \cdot t}{c}} \]

    if 4.49999999999999971e-183 < y < 1.12e-32

    1. Initial program 89.2%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative89.2%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-89.2%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative89.2%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*92.8%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative92.8%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-92.8%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative92.8%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*92.9%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*86.1%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative86.1%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified86.1%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in b around inf 54.1%

      \[\leadsto \color{blue}{\frac{b}{c \cdot z}} \]
    6. Step-by-step derivation
      1. *-commutative54.1%

        \[\leadsto \frac{b}{\color{blue}{z \cdot c}} \]
    7. Simplified54.1%

      \[\leadsto \color{blue}{\frac{b}{z \cdot c}} \]
    8. Step-by-step derivation
      1. div-inv54.2%

        \[\leadsto \color{blue}{b \cdot \frac{1}{z \cdot c}} \]
    9. Applied egg-rr54.2%

      \[\leadsto \color{blue}{b \cdot \frac{1}{z \cdot c}} \]
  3. Recombined 5 regimes into one program.
  4. Final simplification58.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1.25 \cdot 10^{-99}:\\ \;\;\;\;9 \cdot \left(\frac{x}{c} \cdot \frac{y}{z}\right)\\ \mathbf{elif}\;y \leq -9 \cdot 10^{-297}:\\ \;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c}\right)\\ \mathbf{elif}\;y \leq 2.15 \cdot 10^{-209}:\\ \;\;\;\;\frac{b}{z} \cdot \frac{1}{c}\\ \mathbf{elif}\;y \leq 4.5 \cdot 10^{-183}:\\ \;\;\;\;-4 \cdot \frac{t \cdot a}{c}\\ \mathbf{elif}\;y \leq 1.12 \cdot 10^{-32}:\\ \;\;\;\;b \cdot \frac{1}{z \cdot c}\\ \mathbf{elif}\;y \leq 3.6 \cdot 10^{+60} \lor \neg \left(y \leq 4.5 \cdot 10^{+113}\right) \land y \leq 4.8 \cdot 10^{+132}:\\ \;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c}\right)\\ \mathbf{else}:\\ \;\;\;\;9 \cdot \left(\frac{x}{c} \cdot \frac{y}{z}\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 4: 50.0% accurate, 0.4× speedup?

\[\begin{array}{l} c\_m = \left|c\right| \\ c\_s = \mathsf{copysign}\left(1, c\right) \\ [x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\\\ [x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\ \\ \begin{array}{l} t_1 := -4 \cdot \left(a \cdot \frac{t}{c\_m}\right)\\ t_2 := 9 \cdot \frac{y}{z \cdot \frac{c\_m}{x}}\\ c\_s \cdot \begin{array}{l} \mathbf{if}\;x \leq -1.15 \cdot 10^{+139}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;x \leq -5.4 \cdot 10^{+91}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;x \leq -4.5 \cdot 10^{-12}:\\ \;\;\;\;b \cdot \frac{1}{z \cdot c\_m}\\ \mathbf{elif}\;x \leq -2.4 \cdot 10^{-30}:\\ \;\;\;\;-4 \cdot \left(\left(t \cdot a\right) \cdot \frac{1}{c\_m}\right)\\ \mathbf{elif}\;x \leq -6.2 \cdot 10^{-82}:\\ \;\;\;\;\frac{1}{\frac{z \cdot c\_m}{b}}\\ \mathbf{elif}\;x \leq -4.2 \cdot 10^{-294}:\\ \;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c\_m}\right)\\ \mathbf{elif}\;x \leq 2.9 \cdot 10^{-200}:\\ \;\;\;\;\frac{\frac{b}{c\_m}}{z}\\ \mathbf{elif}\;x \leq 9 \cdot 10^{-91}:\\ \;\;\;\;t\_1\\ \mathbf{else}:\\ \;\;\;\;t\_2\\ \end{array} \end{array} \end{array} \]
c\_m = (fabs.f64 c)
c\_s = (copysign.f64 #s(literal 1 binary64) c)
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
(FPCore (c_s x y z t a b c_m)
 :precision binary64
 (let* ((t_1 (* -4.0 (* a (/ t c_m)))) (t_2 (* 9.0 (/ y (* z (/ c_m x))))))
   (*
    c_s
    (if (<= x -1.15e+139)
      t_2
      (if (<= x -5.4e+91)
        t_1
        (if (<= x -4.5e-12)
          (* b (/ 1.0 (* z c_m)))
          (if (<= x -2.4e-30)
            (* -4.0 (* (* t a) (/ 1.0 c_m)))
            (if (<= x -6.2e-82)
              (/ 1.0 (/ (* z c_m) b))
              (if (<= x -4.2e-294)
                (* -4.0 (* t (/ a c_m)))
                (if (<= x 2.9e-200)
                  (/ (/ b c_m) z)
                  (if (<= x 9e-91) t_1 t_2)))))))))))
c\_m = fabs(c);
c\_s = copysign(1.0, c);
assert(x < y && y < z && z < t && t < a && a < b && b < c_m);
assert(x < y && y < z && z < t && t < a && a < b && b < c_m);
double code(double c_s, double x, double y, double z, double t, double a, double b, double c_m) {
	double t_1 = -4.0 * (a * (t / c_m));
	double t_2 = 9.0 * (y / (z * (c_m / x)));
	double tmp;
	if (x <= -1.15e+139) {
		tmp = t_2;
	} else if (x <= -5.4e+91) {
		tmp = t_1;
	} else if (x <= -4.5e-12) {
		tmp = b * (1.0 / (z * c_m));
	} else if (x <= -2.4e-30) {
		tmp = -4.0 * ((t * a) * (1.0 / c_m));
	} else if (x <= -6.2e-82) {
		tmp = 1.0 / ((z * c_m) / b);
	} else if (x <= -4.2e-294) {
		tmp = -4.0 * (t * (a / c_m));
	} else if (x <= 2.9e-200) {
		tmp = (b / c_m) / z;
	} else if (x <= 9e-91) {
		tmp = t_1;
	} else {
		tmp = t_2;
	}
	return c_s * tmp;
}
c\_m = abs(c)
c\_s = copysign(1.0d0, c)
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
real(8) function code(c_s, x, y, z, t, a, b, c_m)
    real(8), intent (in) :: c_s
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c_m
    real(8) :: t_1
    real(8) :: t_2
    real(8) :: tmp
    t_1 = (-4.0d0) * (a * (t / c_m))
    t_2 = 9.0d0 * (y / (z * (c_m / x)))
    if (x <= (-1.15d+139)) then
        tmp = t_2
    else if (x <= (-5.4d+91)) then
        tmp = t_1
    else if (x <= (-4.5d-12)) then
        tmp = b * (1.0d0 / (z * c_m))
    else if (x <= (-2.4d-30)) then
        tmp = (-4.0d0) * ((t * a) * (1.0d0 / c_m))
    else if (x <= (-6.2d-82)) then
        tmp = 1.0d0 / ((z * c_m) / b)
    else if (x <= (-4.2d-294)) then
        tmp = (-4.0d0) * (t * (a / c_m))
    else if (x <= 2.9d-200) then
        tmp = (b / c_m) / z
    else if (x <= 9d-91) then
        tmp = t_1
    else
        tmp = t_2
    end if
    code = c_s * tmp
end function
c\_m = Math.abs(c);
c\_s = Math.copySign(1.0, c);
assert x < y && y < z && z < t && t < a && a < b && b < c_m;
assert x < y && y < z && z < t && t < a && a < b && b < c_m;
public static double code(double c_s, double x, double y, double z, double t, double a, double b, double c_m) {
	double t_1 = -4.0 * (a * (t / c_m));
	double t_2 = 9.0 * (y / (z * (c_m / x)));
	double tmp;
	if (x <= -1.15e+139) {
		tmp = t_2;
	} else if (x <= -5.4e+91) {
		tmp = t_1;
	} else if (x <= -4.5e-12) {
		tmp = b * (1.0 / (z * c_m));
	} else if (x <= -2.4e-30) {
		tmp = -4.0 * ((t * a) * (1.0 / c_m));
	} else if (x <= -6.2e-82) {
		tmp = 1.0 / ((z * c_m) / b);
	} else if (x <= -4.2e-294) {
		tmp = -4.0 * (t * (a / c_m));
	} else if (x <= 2.9e-200) {
		tmp = (b / c_m) / z;
	} else if (x <= 9e-91) {
		tmp = t_1;
	} else {
		tmp = t_2;
	}
	return c_s * tmp;
}
c\_m = math.fabs(c)
c\_s = math.copysign(1.0, c)
[x, y, z, t, a, b, c_m] = sort([x, y, z, t, a, b, c_m])
[x, y, z, t, a, b, c_m] = sort([x, y, z, t, a, b, c_m])
def code(c_s, x, y, z, t, a, b, c_m):
	t_1 = -4.0 * (a * (t / c_m))
	t_2 = 9.0 * (y / (z * (c_m / x)))
	tmp = 0
	if x <= -1.15e+139:
		tmp = t_2
	elif x <= -5.4e+91:
		tmp = t_1
	elif x <= -4.5e-12:
		tmp = b * (1.0 / (z * c_m))
	elif x <= -2.4e-30:
		tmp = -4.0 * ((t * a) * (1.0 / c_m))
	elif x <= -6.2e-82:
		tmp = 1.0 / ((z * c_m) / b)
	elif x <= -4.2e-294:
		tmp = -4.0 * (t * (a / c_m))
	elif x <= 2.9e-200:
		tmp = (b / c_m) / z
	elif x <= 9e-91:
		tmp = t_1
	else:
		tmp = t_2
	return c_s * tmp
c\_m = abs(c)
c\_s = copysign(1.0, c)
x, y, z, t, a, b, c_m = sort([x, y, z, t, a, b, c_m])
x, y, z, t, a, b, c_m = sort([x, y, z, t, a, b, c_m])
function code(c_s, x, y, z, t, a, b, c_m)
	t_1 = Float64(-4.0 * Float64(a * Float64(t / c_m)))
	t_2 = Float64(9.0 * Float64(y / Float64(z * Float64(c_m / x))))
	tmp = 0.0
	if (x <= -1.15e+139)
		tmp = t_2;
	elseif (x <= -5.4e+91)
		tmp = t_1;
	elseif (x <= -4.5e-12)
		tmp = Float64(b * Float64(1.0 / Float64(z * c_m)));
	elseif (x <= -2.4e-30)
		tmp = Float64(-4.0 * Float64(Float64(t * a) * Float64(1.0 / c_m)));
	elseif (x <= -6.2e-82)
		tmp = Float64(1.0 / Float64(Float64(z * c_m) / b));
	elseif (x <= -4.2e-294)
		tmp = Float64(-4.0 * Float64(t * Float64(a / c_m)));
	elseif (x <= 2.9e-200)
		tmp = Float64(Float64(b / c_m) / z);
	elseif (x <= 9e-91)
		tmp = t_1;
	else
		tmp = t_2;
	end
	return Float64(c_s * tmp)
end
c\_m = abs(c);
c\_s = sign(c) * abs(1.0);
x, y, z, t, a, b, c_m = num2cell(sort([x, y, z, t, a, b, c_m])){:}
x, y, z, t, a, b, c_m = num2cell(sort([x, y, z, t, a, b, c_m])){:}
function tmp_2 = code(c_s, x, y, z, t, a, b, c_m)
	t_1 = -4.0 * (a * (t / c_m));
	t_2 = 9.0 * (y / (z * (c_m / x)));
	tmp = 0.0;
	if (x <= -1.15e+139)
		tmp = t_2;
	elseif (x <= -5.4e+91)
		tmp = t_1;
	elseif (x <= -4.5e-12)
		tmp = b * (1.0 / (z * c_m));
	elseif (x <= -2.4e-30)
		tmp = -4.0 * ((t * a) * (1.0 / c_m));
	elseif (x <= -6.2e-82)
		tmp = 1.0 / ((z * c_m) / b);
	elseif (x <= -4.2e-294)
		tmp = -4.0 * (t * (a / c_m));
	elseif (x <= 2.9e-200)
		tmp = (b / c_m) / z;
	elseif (x <= 9e-91)
		tmp = t_1;
	else
		tmp = t_2;
	end
	tmp_2 = c_s * tmp;
end
c\_m = N[Abs[c], $MachinePrecision]
c\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[c]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
code[c$95$s_, x_, y_, z_, t_, a_, b_, c$95$m_] := Block[{t$95$1 = N[(-4.0 * N[(a * N[(t / c$95$m), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(9.0 * N[(y / N[(z * N[(c$95$m / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, N[(c$95$s * If[LessEqual[x, -1.15e+139], t$95$2, If[LessEqual[x, -5.4e+91], t$95$1, If[LessEqual[x, -4.5e-12], N[(b * N[(1.0 / N[(z * c$95$m), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, -2.4e-30], N[(-4.0 * N[(N[(t * a), $MachinePrecision] * N[(1.0 / c$95$m), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, -6.2e-82], N[(1.0 / N[(N[(z * c$95$m), $MachinePrecision] / b), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, -4.2e-294], N[(-4.0 * N[(t * N[(a / c$95$m), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 2.9e-200], N[(N[(b / c$95$m), $MachinePrecision] / z), $MachinePrecision], If[LessEqual[x, 9e-91], t$95$1, t$95$2]]]]]]]]), $MachinePrecision]]]
\begin{array}{l}
c\_m = \left|c\right|
\\
c\_s = \mathsf{copysign}\left(1, c\right)
\\
[x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\\\
[x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\
\\
\begin{array}{l}
t_1 := -4 \cdot \left(a \cdot \frac{t}{c\_m}\right)\\
t_2 := 9 \cdot \frac{y}{z \cdot \frac{c\_m}{x}}\\
c\_s \cdot \begin{array}{l}
\mathbf{if}\;x \leq -1.15 \cdot 10^{+139}:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;x \leq -5.4 \cdot 10^{+91}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;x \leq -4.5 \cdot 10^{-12}:\\
\;\;\;\;b \cdot \frac{1}{z \cdot c\_m}\\

\mathbf{elif}\;x \leq -2.4 \cdot 10^{-30}:\\
\;\;\;\;-4 \cdot \left(\left(t \cdot a\right) \cdot \frac{1}{c\_m}\right)\\

\mathbf{elif}\;x \leq -6.2 \cdot 10^{-82}:\\
\;\;\;\;\frac{1}{\frac{z \cdot c\_m}{b}}\\

\mathbf{elif}\;x \leq -4.2 \cdot 10^{-294}:\\
\;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c\_m}\right)\\

\mathbf{elif}\;x \leq 2.9 \cdot 10^{-200}:\\
\;\;\;\;\frac{\frac{b}{c\_m}}{z}\\

\mathbf{elif}\;x \leq 9 \cdot 10^{-91}:\\
\;\;\;\;t\_1\\

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


\end{array}
\end{array}
\end{array}
Derivation
  1. Split input into 7 regimes
  2. if x < -1.15e139 or 8.99999999999999952e-91 < x

    1. Initial program 81.8%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative81.8%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-81.8%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative81.8%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*80.8%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative80.8%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-80.8%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative80.8%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*80.8%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*80.0%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative80.0%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified80.0%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 78.8%

      \[\leadsto \color{blue}{\frac{-4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c} + \left(9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}\right)}{z}} \]
    6. Taylor expanded in x around inf 59.8%

      \[\leadsto \color{blue}{9 \cdot \frac{x \cdot y}{c \cdot z}} \]
    7. Step-by-step derivation
      1. times-frac59.2%

        \[\leadsto 9 \cdot \color{blue}{\left(\frac{x}{c} \cdot \frac{y}{z}\right)} \]
    8. Simplified59.2%

      \[\leadsto \color{blue}{9 \cdot \left(\frac{x}{c} \cdot \frac{y}{z}\right)} \]
    9. Step-by-step derivation
      1. clear-num59.2%

        \[\leadsto 9 \cdot \left(\color{blue}{\frac{1}{\frac{c}{x}}} \cdot \frac{y}{z}\right) \]
      2. frac-times66.8%

        \[\leadsto 9 \cdot \color{blue}{\frac{1 \cdot y}{\frac{c}{x} \cdot z}} \]
      3. *-un-lft-identity66.8%

        \[\leadsto 9 \cdot \frac{\color{blue}{y}}{\frac{c}{x} \cdot z} \]
    10. Applied egg-rr66.8%

      \[\leadsto 9 \cdot \color{blue}{\frac{y}{\frac{c}{x} \cdot z}} \]

    if -1.15e139 < x < -5.4e91 or 2.9e-200 < x < 8.99999999999999952e-91

    1. Initial program 97.0%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative97.0%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-97.0%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative97.0%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*94.4%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative94.4%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-94.4%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative94.4%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*94.3%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*94.3%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative94.3%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified94.3%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around inf 53.8%

      \[\leadsto \color{blue}{-4 \cdot \frac{a \cdot t}{c}} \]
    6. Step-by-step derivation
      1. *-commutative53.8%

        \[\leadsto \color{blue}{\frac{a \cdot t}{c} \cdot -4} \]
      2. associate-/l*53.5%

        \[\leadsto \color{blue}{\left(a \cdot \frac{t}{c}\right)} \cdot -4 \]
    7. Simplified53.5%

      \[\leadsto \color{blue}{\left(a \cdot \frac{t}{c}\right) \cdot -4} \]

    if -5.4e91 < x < -4.49999999999999981e-12

    1. Initial program 86.4%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative86.4%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-86.4%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative86.4%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*85.5%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative85.5%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-85.5%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative85.5%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*85.4%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*86.1%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative86.1%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified86.1%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in b around inf 54.3%

      \[\leadsto \color{blue}{\frac{b}{c \cdot z}} \]
    6. Step-by-step derivation
      1. *-commutative54.3%

        \[\leadsto \frac{b}{\color{blue}{z \cdot c}} \]
    7. Simplified54.3%

      \[\leadsto \color{blue}{\frac{b}{z \cdot c}} \]
    8. Step-by-step derivation
      1. div-inv54.3%

        \[\leadsto \color{blue}{b \cdot \frac{1}{z \cdot c}} \]
    9. Applied egg-rr54.3%

      \[\leadsto \color{blue}{b \cdot \frac{1}{z \cdot c}} \]

    if -4.49999999999999981e-12 < x < -2.39999999999999985e-30

    1. Initial program 75.6%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative75.6%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-75.6%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative75.6%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*87.5%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative87.5%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-87.5%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative87.5%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*87.5%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*87.3%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative87.3%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified87.3%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around inf 46.3%

      \[\leadsto \color{blue}{-4 \cdot \frac{a \cdot t}{c}} \]
    6. Step-by-step derivation
      1. div-inv46.5%

        \[\leadsto -4 \cdot \color{blue}{\left(\left(a \cdot t\right) \cdot \frac{1}{c}\right)} \]
    7. Applied egg-rr46.5%

      \[\leadsto -4 \cdot \color{blue}{\left(\left(a \cdot t\right) \cdot \frac{1}{c}\right)} \]

    if -2.39999999999999985e-30 < x < -6.19999999999999999e-82

    1. Initial program 88.4%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative88.4%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-88.4%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative88.4%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*88.4%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative88.4%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-88.4%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative88.4%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*88.8%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*88.8%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative88.8%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified88.8%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in b around inf 46.3%

      \[\leadsto \color{blue}{\frac{b}{c \cdot z}} \]
    6. Step-by-step derivation
      1. *-commutative46.3%

        \[\leadsto \frac{b}{\color{blue}{z \cdot c}} \]
    7. Simplified46.3%

      \[\leadsto \color{blue}{\frac{b}{z \cdot c}} \]
    8. Step-by-step derivation
      1. clear-num46.5%

        \[\leadsto \color{blue}{\frac{1}{\frac{z \cdot c}{b}}} \]
      2. inv-pow46.5%

        \[\leadsto \color{blue}{{\left(\frac{z \cdot c}{b}\right)}^{-1}} \]
    9. Applied egg-rr46.5%

      \[\leadsto \color{blue}{{\left(\frac{z \cdot c}{b}\right)}^{-1}} \]
    10. Step-by-step derivation
      1. unpow-146.5%

        \[\leadsto \color{blue}{\frac{1}{\frac{z \cdot c}{b}}} \]
      2. associate-/l*46.9%

        \[\leadsto \frac{1}{\color{blue}{z \cdot \frac{c}{b}}} \]
    11. Simplified46.9%

      \[\leadsto \color{blue}{\frac{1}{z \cdot \frac{c}{b}}} \]
    12. Step-by-step derivation
      1. associate-*r/46.5%

        \[\leadsto \frac{1}{\color{blue}{\frac{z \cdot c}{b}}} \]
    13. Applied egg-rr46.5%

      \[\leadsto \frac{1}{\color{blue}{\frac{z \cdot c}{b}}} \]

    if -6.19999999999999999e-82 < x < -4.19999999999999969e-294

    1. Initial program 72.1%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative72.1%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-72.1%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative72.1%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*76.7%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative76.7%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-76.7%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative76.7%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*76.7%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*79.1%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative79.1%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified79.1%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 74.7%

      \[\leadsto \color{blue}{\frac{-4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c} + \left(9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}\right)}{z}} \]
    6. Taylor expanded in a around inf 58.5%

      \[\leadsto \color{blue}{-4 \cdot \frac{a \cdot t}{c}} \]
    7. Step-by-step derivation
      1. *-commutative58.5%

        \[\leadsto -4 \cdot \frac{\color{blue}{t \cdot a}}{c} \]
      2. associate-/l*60.6%

        \[\leadsto -4 \cdot \color{blue}{\left(t \cdot \frac{a}{c}\right)} \]
    8. Simplified60.6%

      \[\leadsto \color{blue}{-4 \cdot \left(t \cdot \frac{a}{c}\right)} \]

    if -4.19999999999999969e-294 < x < 2.9e-200

    1. Initial program 74.0%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative74.0%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-74.0%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative74.0%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*77.1%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative77.1%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-77.1%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative77.1%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*77.1%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*77.2%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative77.2%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified77.2%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 74.3%

      \[\leadsto \color{blue}{\frac{-4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c} + \left(9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}\right)}{z}} \]
    6. Taylor expanded in b around inf 54.5%

      \[\leadsto \color{blue}{\frac{b}{c \cdot z}} \]
    7. Step-by-step derivation
      1. associate-/r*54.5%

        \[\leadsto \color{blue}{\frac{\frac{b}{c}}{z}} \]
    8. Simplified54.5%

      \[\leadsto \color{blue}{\frac{\frac{b}{c}}{z}} \]
  3. Recombined 7 regimes into one program.
  4. Final simplification60.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -1.15 \cdot 10^{+139}:\\ \;\;\;\;9 \cdot \frac{y}{z \cdot \frac{c}{x}}\\ \mathbf{elif}\;x \leq -5.4 \cdot 10^{+91}:\\ \;\;\;\;-4 \cdot \left(a \cdot \frac{t}{c}\right)\\ \mathbf{elif}\;x \leq -4.5 \cdot 10^{-12}:\\ \;\;\;\;b \cdot \frac{1}{z \cdot c}\\ \mathbf{elif}\;x \leq -2.4 \cdot 10^{-30}:\\ \;\;\;\;-4 \cdot \left(\left(t \cdot a\right) \cdot \frac{1}{c}\right)\\ \mathbf{elif}\;x \leq -6.2 \cdot 10^{-82}:\\ \;\;\;\;\frac{1}{\frac{z \cdot c}{b}}\\ \mathbf{elif}\;x \leq -4.2 \cdot 10^{-294}:\\ \;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c}\right)\\ \mathbf{elif}\;x \leq 2.9 \cdot 10^{-200}:\\ \;\;\;\;\frac{\frac{b}{c}}{z}\\ \mathbf{elif}\;x \leq 9 \cdot 10^{-91}:\\ \;\;\;\;-4 \cdot \left(a \cdot \frac{t}{c}\right)\\ \mathbf{else}:\\ \;\;\;\;9 \cdot \frac{y}{z \cdot \frac{c}{x}}\\ \end{array} \]
  5. Add Preprocessing

Alternative 5: 48.1% accurate, 0.4× speedup?

\[\begin{array}{l} c\_m = \left|c\right| \\ c\_s = \mathsf{copysign}\left(1, c\right) \\ [x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\\\ [x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\ \\ \begin{array}{l} t_1 := -4 \cdot \left(t \cdot \frac{a}{c\_m}\right)\\ c\_s \cdot \begin{array}{l} \mathbf{if}\;y \leq -1.25 \cdot 10^{-99}:\\ \;\;\;\;9 \cdot \frac{y}{z \cdot \frac{c\_m}{x}}\\ \mathbf{elif}\;y \leq -8.2 \cdot 10^{-297}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;y \leq 3.6 \cdot 10^{-209}:\\ \;\;\;\;\frac{b}{z} \cdot \frac{1}{c\_m}\\ \mathbf{elif}\;y \leq 2.4 \cdot 10^{-186}:\\ \;\;\;\;-4 \cdot \frac{t \cdot a}{c\_m}\\ \mathbf{elif}\;y \leq 2.6 \cdot 10^{-8}:\\ \;\;\;\;b \cdot \frac{1}{z \cdot c\_m}\\ \mathbf{elif}\;y \leq 1.3 \cdot 10^{+113} \lor \neg \left(y \leq 3 \cdot 10^{+167}\right):\\ \;\;\;\;x \cdot \left(y \cdot \frac{9}{z \cdot c\_m}\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \end{array} \]
c\_m = (fabs.f64 c)
c\_s = (copysign.f64 #s(literal 1 binary64) c)
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
(FPCore (c_s x y z t a b c_m)
 :precision binary64
 (let* ((t_1 (* -4.0 (* t (/ a c_m)))))
   (*
    c_s
    (if (<= y -1.25e-99)
      (* 9.0 (/ y (* z (/ c_m x))))
      (if (<= y -8.2e-297)
        t_1
        (if (<= y 3.6e-209)
          (* (/ b z) (/ 1.0 c_m))
          (if (<= y 2.4e-186)
            (* -4.0 (/ (* t a) c_m))
            (if (<= y 2.6e-8)
              (* b (/ 1.0 (* z c_m)))
              (if (or (<= y 1.3e+113) (not (<= y 3e+167)))
                (* x (* y (/ 9.0 (* z c_m))))
                t_1)))))))))
c\_m = fabs(c);
c\_s = copysign(1.0, c);
assert(x < y && y < z && z < t && t < a && a < b && b < c_m);
assert(x < y && y < z && z < t && t < a && a < b && b < c_m);
double code(double c_s, double x, double y, double z, double t, double a, double b, double c_m) {
	double t_1 = -4.0 * (t * (a / c_m));
	double tmp;
	if (y <= -1.25e-99) {
		tmp = 9.0 * (y / (z * (c_m / x)));
	} else if (y <= -8.2e-297) {
		tmp = t_1;
	} else if (y <= 3.6e-209) {
		tmp = (b / z) * (1.0 / c_m);
	} else if (y <= 2.4e-186) {
		tmp = -4.0 * ((t * a) / c_m);
	} else if (y <= 2.6e-8) {
		tmp = b * (1.0 / (z * c_m));
	} else if ((y <= 1.3e+113) || !(y <= 3e+167)) {
		tmp = x * (y * (9.0 / (z * c_m)));
	} else {
		tmp = t_1;
	}
	return c_s * tmp;
}
c\_m = abs(c)
c\_s = copysign(1.0d0, c)
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
real(8) function code(c_s, x, y, z, t, a, b, c_m)
    real(8), intent (in) :: c_s
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c_m
    real(8) :: t_1
    real(8) :: tmp
    t_1 = (-4.0d0) * (t * (a / c_m))
    if (y <= (-1.25d-99)) then
        tmp = 9.0d0 * (y / (z * (c_m / x)))
    else if (y <= (-8.2d-297)) then
        tmp = t_1
    else if (y <= 3.6d-209) then
        tmp = (b / z) * (1.0d0 / c_m)
    else if (y <= 2.4d-186) then
        tmp = (-4.0d0) * ((t * a) / c_m)
    else if (y <= 2.6d-8) then
        tmp = b * (1.0d0 / (z * c_m))
    else if ((y <= 1.3d+113) .or. (.not. (y <= 3d+167))) then
        tmp = x * (y * (9.0d0 / (z * c_m)))
    else
        tmp = t_1
    end if
    code = c_s * tmp
end function
c\_m = Math.abs(c);
c\_s = Math.copySign(1.0, c);
assert x < y && y < z && z < t && t < a && a < b && b < c_m;
assert x < y && y < z && z < t && t < a && a < b && b < c_m;
public static double code(double c_s, double x, double y, double z, double t, double a, double b, double c_m) {
	double t_1 = -4.0 * (t * (a / c_m));
	double tmp;
	if (y <= -1.25e-99) {
		tmp = 9.0 * (y / (z * (c_m / x)));
	} else if (y <= -8.2e-297) {
		tmp = t_1;
	} else if (y <= 3.6e-209) {
		tmp = (b / z) * (1.0 / c_m);
	} else if (y <= 2.4e-186) {
		tmp = -4.0 * ((t * a) / c_m);
	} else if (y <= 2.6e-8) {
		tmp = b * (1.0 / (z * c_m));
	} else if ((y <= 1.3e+113) || !(y <= 3e+167)) {
		tmp = x * (y * (9.0 / (z * c_m)));
	} else {
		tmp = t_1;
	}
	return c_s * tmp;
}
c\_m = math.fabs(c)
c\_s = math.copysign(1.0, c)
[x, y, z, t, a, b, c_m] = sort([x, y, z, t, a, b, c_m])
[x, y, z, t, a, b, c_m] = sort([x, y, z, t, a, b, c_m])
def code(c_s, x, y, z, t, a, b, c_m):
	t_1 = -4.0 * (t * (a / c_m))
	tmp = 0
	if y <= -1.25e-99:
		tmp = 9.0 * (y / (z * (c_m / x)))
	elif y <= -8.2e-297:
		tmp = t_1
	elif y <= 3.6e-209:
		tmp = (b / z) * (1.0 / c_m)
	elif y <= 2.4e-186:
		tmp = -4.0 * ((t * a) / c_m)
	elif y <= 2.6e-8:
		tmp = b * (1.0 / (z * c_m))
	elif (y <= 1.3e+113) or not (y <= 3e+167):
		tmp = x * (y * (9.0 / (z * c_m)))
	else:
		tmp = t_1
	return c_s * tmp
c\_m = abs(c)
c\_s = copysign(1.0, c)
x, y, z, t, a, b, c_m = sort([x, y, z, t, a, b, c_m])
x, y, z, t, a, b, c_m = sort([x, y, z, t, a, b, c_m])
function code(c_s, x, y, z, t, a, b, c_m)
	t_1 = Float64(-4.0 * Float64(t * Float64(a / c_m)))
	tmp = 0.0
	if (y <= -1.25e-99)
		tmp = Float64(9.0 * Float64(y / Float64(z * Float64(c_m / x))));
	elseif (y <= -8.2e-297)
		tmp = t_1;
	elseif (y <= 3.6e-209)
		tmp = Float64(Float64(b / z) * Float64(1.0 / c_m));
	elseif (y <= 2.4e-186)
		tmp = Float64(-4.0 * Float64(Float64(t * a) / c_m));
	elseif (y <= 2.6e-8)
		tmp = Float64(b * Float64(1.0 / Float64(z * c_m)));
	elseif ((y <= 1.3e+113) || !(y <= 3e+167))
		tmp = Float64(x * Float64(y * Float64(9.0 / Float64(z * c_m))));
	else
		tmp = t_1;
	end
	return Float64(c_s * tmp)
end
c\_m = abs(c);
c\_s = sign(c) * abs(1.0);
x, y, z, t, a, b, c_m = num2cell(sort([x, y, z, t, a, b, c_m])){:}
x, y, z, t, a, b, c_m = num2cell(sort([x, y, z, t, a, b, c_m])){:}
function tmp_2 = code(c_s, x, y, z, t, a, b, c_m)
	t_1 = -4.0 * (t * (a / c_m));
	tmp = 0.0;
	if (y <= -1.25e-99)
		tmp = 9.0 * (y / (z * (c_m / x)));
	elseif (y <= -8.2e-297)
		tmp = t_1;
	elseif (y <= 3.6e-209)
		tmp = (b / z) * (1.0 / c_m);
	elseif (y <= 2.4e-186)
		tmp = -4.0 * ((t * a) / c_m);
	elseif (y <= 2.6e-8)
		tmp = b * (1.0 / (z * c_m));
	elseif ((y <= 1.3e+113) || ~((y <= 3e+167)))
		tmp = x * (y * (9.0 / (z * c_m)));
	else
		tmp = t_1;
	end
	tmp_2 = c_s * tmp;
end
c\_m = N[Abs[c], $MachinePrecision]
c\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[c]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
code[c$95$s_, x_, y_, z_, t_, a_, b_, c$95$m_] := Block[{t$95$1 = N[(-4.0 * N[(t * N[(a / c$95$m), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, N[(c$95$s * If[LessEqual[y, -1.25e-99], N[(9.0 * N[(y / N[(z * N[(c$95$m / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, -8.2e-297], t$95$1, If[LessEqual[y, 3.6e-209], N[(N[(b / z), $MachinePrecision] * N[(1.0 / c$95$m), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 2.4e-186], N[(-4.0 * N[(N[(t * a), $MachinePrecision] / c$95$m), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 2.6e-8], N[(b * N[(1.0 / N[(z * c$95$m), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[Or[LessEqual[y, 1.3e+113], N[Not[LessEqual[y, 3e+167]], $MachinePrecision]], N[(x * N[(y * N[(9.0 / N[(z * c$95$m), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]]]]), $MachinePrecision]]
\begin{array}{l}
c\_m = \left|c\right|
\\
c\_s = \mathsf{copysign}\left(1, c\right)
\\
[x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\\\
[x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\
\\
\begin{array}{l}
t_1 := -4 \cdot \left(t \cdot \frac{a}{c\_m}\right)\\
c\_s \cdot \begin{array}{l}
\mathbf{if}\;y \leq -1.25 \cdot 10^{-99}:\\
\;\;\;\;9 \cdot \frac{y}{z \cdot \frac{c\_m}{x}}\\

\mathbf{elif}\;y \leq -8.2 \cdot 10^{-297}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;y \leq 3.6 \cdot 10^{-209}:\\
\;\;\;\;\frac{b}{z} \cdot \frac{1}{c\_m}\\

\mathbf{elif}\;y \leq 2.4 \cdot 10^{-186}:\\
\;\;\;\;-4 \cdot \frac{t \cdot a}{c\_m}\\

\mathbf{elif}\;y \leq 2.6 \cdot 10^{-8}:\\
\;\;\;\;b \cdot \frac{1}{z \cdot c\_m}\\

\mathbf{elif}\;y \leq 1.3 \cdot 10^{+113} \lor \neg \left(y \leq 3 \cdot 10^{+167}\right):\\
\;\;\;\;x \cdot \left(y \cdot \frac{9}{z \cdot c\_m}\right)\\

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


\end{array}
\end{array}
\end{array}
Derivation
  1. Split input into 6 regimes
  2. if y < -1.24999999999999992e-99

    1. Initial program 85.3%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative85.3%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-85.3%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative85.3%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*84.1%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative84.1%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-84.1%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative84.1%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*84.1%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*85.2%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative85.2%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified85.2%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 79.3%

      \[\leadsto \color{blue}{\frac{-4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c} + \left(9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}\right)}{z}} \]
    6. Taylor expanded in x around inf 53.4%

      \[\leadsto \color{blue}{9 \cdot \frac{x \cdot y}{c \cdot z}} \]
    7. Step-by-step derivation
      1. times-frac49.6%

        \[\leadsto 9 \cdot \color{blue}{\left(\frac{x}{c} \cdot \frac{y}{z}\right)} \]
    8. Simplified49.6%

      \[\leadsto \color{blue}{9 \cdot \left(\frac{x}{c} \cdot \frac{y}{z}\right)} \]
    9. Step-by-step derivation
      1. clear-num49.6%

        \[\leadsto 9 \cdot \left(\color{blue}{\frac{1}{\frac{c}{x}}} \cdot \frac{y}{z}\right) \]
      2. frac-times54.3%

        \[\leadsto 9 \cdot \color{blue}{\frac{1 \cdot y}{\frac{c}{x} \cdot z}} \]
      3. *-un-lft-identity54.3%

        \[\leadsto 9 \cdot \frac{\color{blue}{y}}{\frac{c}{x} \cdot z} \]
    10. Applied egg-rr54.3%

      \[\leadsto 9 \cdot \color{blue}{\frac{y}{\frac{c}{x} \cdot z}} \]

    if -1.24999999999999992e-99 < y < -8.2000000000000004e-297 or 1.3e113 < y < 3.00000000000000012e167

    1. Initial program 72.7%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative72.7%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-72.7%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative72.7%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*75.6%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative75.6%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-75.6%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative75.6%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*75.7%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*77.3%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative77.3%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified77.3%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 72.5%

      \[\leadsto \color{blue}{\frac{-4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c} + \left(9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}\right)}{z}} \]
    6. Taylor expanded in a around inf 55.3%

      \[\leadsto \color{blue}{-4 \cdot \frac{a \cdot t}{c}} \]
    7. Step-by-step derivation
      1. *-commutative55.3%

        \[\leadsto -4 \cdot \frac{\color{blue}{t \cdot a}}{c} \]
      2. associate-/l*59.3%

        \[\leadsto -4 \cdot \color{blue}{\left(t \cdot \frac{a}{c}\right)} \]
    8. Simplified59.3%

      \[\leadsto \color{blue}{-4 \cdot \left(t \cdot \frac{a}{c}\right)} \]

    if -8.2000000000000004e-297 < y < 3.60000000000000016e-209

    1. Initial program 79.0%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative79.0%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-79.0%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative79.0%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*89.1%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative89.1%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-89.1%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative89.1%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*89.1%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*84.2%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative84.2%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified84.2%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Applied egg-rr76.4%

      \[\leadsto \color{blue}{\frac{\mathsf{fma}\left(x, 9 \cdot y, 4 \cdot \left(z \cdot \left(t \cdot a\right)\right)\right) + b}{z} \cdot \frac{1}{c}} \]
    6. Taylor expanded in b around inf 77.0%

      \[\leadsto \color{blue}{\frac{b}{z}} \cdot \frac{1}{c} \]

    if 3.60000000000000016e-209 < y < 2.40000000000000003e-186

    1. Initial program 83.5%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative83.5%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-83.5%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative83.5%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*83.2%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative83.2%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-83.2%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative83.2%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*83.2%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*83.5%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative83.5%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified83.5%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around inf 67.8%

      \[\leadsto \color{blue}{-4 \cdot \frac{a \cdot t}{c}} \]

    if 2.40000000000000003e-186 < y < 2.6000000000000001e-8

    1. Initial program 90.2%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative90.2%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-90.2%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative90.2%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*93.5%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative93.5%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-93.5%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative93.5%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*93.6%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*87.5%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative87.5%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified87.5%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in b around inf 52.3%

      \[\leadsto \color{blue}{\frac{b}{c \cdot z}} \]
    6. Step-by-step derivation
      1. *-commutative52.3%

        \[\leadsto \frac{b}{\color{blue}{z \cdot c}} \]
    7. Simplified52.3%

      \[\leadsto \color{blue}{\frac{b}{z \cdot c}} \]
    8. Step-by-step derivation
      1. div-inv52.4%

        \[\leadsto \color{blue}{b \cdot \frac{1}{z \cdot c}} \]
    9. Applied egg-rr52.4%

      \[\leadsto \color{blue}{b \cdot \frac{1}{z \cdot c}} \]

    if 2.6000000000000001e-8 < y < 1.3e113 or 3.00000000000000012e167 < y

    1. Initial program 82.6%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative82.6%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-82.6%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative82.6%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*78.0%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative78.0%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-78.0%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative78.0%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*78.1%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*80.3%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative80.3%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified80.3%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Step-by-step derivation
      1. add-cube-cbrt80.0%

        \[\leadsto \frac{\left(\color{blue}{\left(\sqrt[3]{x \cdot \left(9 \cdot y\right)} \cdot \sqrt[3]{x \cdot \left(9 \cdot y\right)}\right) \cdot \sqrt[3]{x \cdot \left(9 \cdot y\right)}} - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c} \]
      2. pow380.0%

        \[\leadsto \frac{\left(\color{blue}{{\left(\sqrt[3]{x \cdot \left(9 \cdot y\right)}\right)}^{3}} - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c} \]
      3. associate-*r*79.9%

        \[\leadsto \frac{\left({\left(\sqrt[3]{\color{blue}{\left(x \cdot 9\right) \cdot y}}\right)}^{3} - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c} \]
      4. *-commutative79.9%

        \[\leadsto \frac{\left({\left(\sqrt[3]{\color{blue}{\left(9 \cdot x\right)} \cdot y}\right)}^{3} - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c} \]
      5. associate-*l*79.9%

        \[\leadsto \frac{\left({\left(\sqrt[3]{\color{blue}{9 \cdot \left(x \cdot y\right)}}\right)}^{3} - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c} \]
    6. Applied egg-rr79.9%

      \[\leadsto \frac{\left(\color{blue}{{\left(\sqrt[3]{9 \cdot \left(x \cdot y\right)}\right)}^{3}} - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c} \]
    7. Taylor expanded in x around inf 58.5%

      \[\leadsto \color{blue}{\frac{x \cdot \left(y \cdot {\left(\sqrt[3]{9}\right)}^{3}\right)}{c \cdot z}} \]
    8. Step-by-step derivation
      1. associate-/l*64.8%

        \[\leadsto \color{blue}{x \cdot \frac{y \cdot {\left(\sqrt[3]{9}\right)}^{3}}{c \cdot z}} \]
      2. rem-cube-cbrt64.8%

        \[\leadsto x \cdot \frac{y \cdot \color{blue}{9}}{c \cdot z} \]
      3. associate-/l*64.8%

        \[\leadsto x \cdot \color{blue}{\left(y \cdot \frac{9}{c \cdot z}\right)} \]
      4. *-commutative64.8%

        \[\leadsto x \cdot \left(y \cdot \frac{9}{\color{blue}{z \cdot c}}\right) \]
    9. Simplified64.8%

      \[\leadsto \color{blue}{x \cdot \left(y \cdot \frac{9}{z \cdot c}\right)} \]
  3. Recombined 6 regimes into one program.
  4. Final simplification59.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1.25 \cdot 10^{-99}:\\ \;\;\;\;9 \cdot \frac{y}{z \cdot \frac{c}{x}}\\ \mathbf{elif}\;y \leq -8.2 \cdot 10^{-297}:\\ \;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c}\right)\\ \mathbf{elif}\;y \leq 3.6 \cdot 10^{-209}:\\ \;\;\;\;\frac{b}{z} \cdot \frac{1}{c}\\ \mathbf{elif}\;y \leq 2.4 \cdot 10^{-186}:\\ \;\;\;\;-4 \cdot \frac{t \cdot a}{c}\\ \mathbf{elif}\;y \leq 2.6 \cdot 10^{-8}:\\ \;\;\;\;b \cdot \frac{1}{z \cdot c}\\ \mathbf{elif}\;y \leq 1.3 \cdot 10^{+113} \lor \neg \left(y \leq 3 \cdot 10^{+167}\right):\\ \;\;\;\;x \cdot \left(y \cdot \frac{9}{z \cdot c}\right)\\ \mathbf{else}:\\ \;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c}\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 6: 48.5% accurate, 0.4× speedup?

\[\begin{array}{l} c\_m = \left|c\right| \\ c\_s = \mathsf{copysign}\left(1, c\right) \\ [x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\\\ [x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\ \\ \begin{array}{l} t_1 := -4 \cdot \left(t \cdot \frac{a}{c\_m}\right)\\ c\_s \cdot \begin{array}{l} \mathbf{if}\;y \leq -1.1 \cdot 10^{-107}:\\ \;\;\;\;9 \cdot \frac{y}{z \cdot \frac{c\_m}{x}}\\ \mathbf{elif}\;y \leq -1.1 \cdot 10^{-296}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;y \leq 1.1 \cdot 10^{-209}:\\ \;\;\;\;\frac{b}{z} \cdot \frac{1}{c\_m}\\ \mathbf{elif}\;y \leq 3.7 \cdot 10^{-183}:\\ \;\;\;\;-4 \cdot \frac{t \cdot a}{c\_m}\\ \mathbf{elif}\;y \leq 1.25 \cdot 10^{-19}:\\ \;\;\;\;b \cdot \frac{1}{z \cdot c\_m}\\ \mathbf{elif}\;y \leq 4.8 \cdot 10^{+113}:\\ \;\;\;\;x \cdot \left(y \cdot \frac{9}{z \cdot c\_m}\right)\\ \mathbf{elif}\;y \leq 2.3 \cdot 10^{+168}:\\ \;\;\;\;t\_1\\ \mathbf{else}:\\ \;\;\;\;x \cdot \left(\frac{y}{c\_m} \cdot \frac{9}{z}\right)\\ \end{array} \end{array} \end{array} \]
c\_m = (fabs.f64 c)
c\_s = (copysign.f64 #s(literal 1 binary64) c)
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
(FPCore (c_s x y z t a b c_m)
 :precision binary64
 (let* ((t_1 (* -4.0 (* t (/ a c_m)))))
   (*
    c_s
    (if (<= y -1.1e-107)
      (* 9.0 (/ y (* z (/ c_m x))))
      (if (<= y -1.1e-296)
        t_1
        (if (<= y 1.1e-209)
          (* (/ b z) (/ 1.0 c_m))
          (if (<= y 3.7e-183)
            (* -4.0 (/ (* t a) c_m))
            (if (<= y 1.25e-19)
              (* b (/ 1.0 (* z c_m)))
              (if (<= y 4.8e+113)
                (* x (* y (/ 9.0 (* z c_m))))
                (if (<= y 2.3e+168) t_1 (* x (* (/ y c_m) (/ 9.0 z)))))))))))))
c\_m = fabs(c);
c\_s = copysign(1.0, c);
assert(x < y && y < z && z < t && t < a && a < b && b < c_m);
assert(x < y && y < z && z < t && t < a && a < b && b < c_m);
double code(double c_s, double x, double y, double z, double t, double a, double b, double c_m) {
	double t_1 = -4.0 * (t * (a / c_m));
	double tmp;
	if (y <= -1.1e-107) {
		tmp = 9.0 * (y / (z * (c_m / x)));
	} else if (y <= -1.1e-296) {
		tmp = t_1;
	} else if (y <= 1.1e-209) {
		tmp = (b / z) * (1.0 / c_m);
	} else if (y <= 3.7e-183) {
		tmp = -4.0 * ((t * a) / c_m);
	} else if (y <= 1.25e-19) {
		tmp = b * (1.0 / (z * c_m));
	} else if (y <= 4.8e+113) {
		tmp = x * (y * (9.0 / (z * c_m)));
	} else if (y <= 2.3e+168) {
		tmp = t_1;
	} else {
		tmp = x * ((y / c_m) * (9.0 / z));
	}
	return c_s * tmp;
}
c\_m = abs(c)
c\_s = copysign(1.0d0, c)
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
real(8) function code(c_s, x, y, z, t, a, b, c_m)
    real(8), intent (in) :: c_s
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c_m
    real(8) :: t_1
    real(8) :: tmp
    t_1 = (-4.0d0) * (t * (a / c_m))
    if (y <= (-1.1d-107)) then
        tmp = 9.0d0 * (y / (z * (c_m / x)))
    else if (y <= (-1.1d-296)) then
        tmp = t_1
    else if (y <= 1.1d-209) then
        tmp = (b / z) * (1.0d0 / c_m)
    else if (y <= 3.7d-183) then
        tmp = (-4.0d0) * ((t * a) / c_m)
    else if (y <= 1.25d-19) then
        tmp = b * (1.0d0 / (z * c_m))
    else if (y <= 4.8d+113) then
        tmp = x * (y * (9.0d0 / (z * c_m)))
    else if (y <= 2.3d+168) then
        tmp = t_1
    else
        tmp = x * ((y / c_m) * (9.0d0 / z))
    end if
    code = c_s * tmp
end function
c\_m = Math.abs(c);
c\_s = Math.copySign(1.0, c);
assert x < y && y < z && z < t && t < a && a < b && b < c_m;
assert x < y && y < z && z < t && t < a && a < b && b < c_m;
public static double code(double c_s, double x, double y, double z, double t, double a, double b, double c_m) {
	double t_1 = -4.0 * (t * (a / c_m));
	double tmp;
	if (y <= -1.1e-107) {
		tmp = 9.0 * (y / (z * (c_m / x)));
	} else if (y <= -1.1e-296) {
		tmp = t_1;
	} else if (y <= 1.1e-209) {
		tmp = (b / z) * (1.0 / c_m);
	} else if (y <= 3.7e-183) {
		tmp = -4.0 * ((t * a) / c_m);
	} else if (y <= 1.25e-19) {
		tmp = b * (1.0 / (z * c_m));
	} else if (y <= 4.8e+113) {
		tmp = x * (y * (9.0 / (z * c_m)));
	} else if (y <= 2.3e+168) {
		tmp = t_1;
	} else {
		tmp = x * ((y / c_m) * (9.0 / z));
	}
	return c_s * tmp;
}
c\_m = math.fabs(c)
c\_s = math.copysign(1.0, c)
[x, y, z, t, a, b, c_m] = sort([x, y, z, t, a, b, c_m])
[x, y, z, t, a, b, c_m] = sort([x, y, z, t, a, b, c_m])
def code(c_s, x, y, z, t, a, b, c_m):
	t_1 = -4.0 * (t * (a / c_m))
	tmp = 0
	if y <= -1.1e-107:
		tmp = 9.0 * (y / (z * (c_m / x)))
	elif y <= -1.1e-296:
		tmp = t_1
	elif y <= 1.1e-209:
		tmp = (b / z) * (1.0 / c_m)
	elif y <= 3.7e-183:
		tmp = -4.0 * ((t * a) / c_m)
	elif y <= 1.25e-19:
		tmp = b * (1.0 / (z * c_m))
	elif y <= 4.8e+113:
		tmp = x * (y * (9.0 / (z * c_m)))
	elif y <= 2.3e+168:
		tmp = t_1
	else:
		tmp = x * ((y / c_m) * (9.0 / z))
	return c_s * tmp
c\_m = abs(c)
c\_s = copysign(1.0, c)
x, y, z, t, a, b, c_m = sort([x, y, z, t, a, b, c_m])
x, y, z, t, a, b, c_m = sort([x, y, z, t, a, b, c_m])
function code(c_s, x, y, z, t, a, b, c_m)
	t_1 = Float64(-4.0 * Float64(t * Float64(a / c_m)))
	tmp = 0.0
	if (y <= -1.1e-107)
		tmp = Float64(9.0 * Float64(y / Float64(z * Float64(c_m / x))));
	elseif (y <= -1.1e-296)
		tmp = t_1;
	elseif (y <= 1.1e-209)
		tmp = Float64(Float64(b / z) * Float64(1.0 / c_m));
	elseif (y <= 3.7e-183)
		tmp = Float64(-4.0 * Float64(Float64(t * a) / c_m));
	elseif (y <= 1.25e-19)
		tmp = Float64(b * Float64(1.0 / Float64(z * c_m)));
	elseif (y <= 4.8e+113)
		tmp = Float64(x * Float64(y * Float64(9.0 / Float64(z * c_m))));
	elseif (y <= 2.3e+168)
		tmp = t_1;
	else
		tmp = Float64(x * Float64(Float64(y / c_m) * Float64(9.0 / z)));
	end
	return Float64(c_s * tmp)
end
c\_m = abs(c);
c\_s = sign(c) * abs(1.0);
x, y, z, t, a, b, c_m = num2cell(sort([x, y, z, t, a, b, c_m])){:}
x, y, z, t, a, b, c_m = num2cell(sort([x, y, z, t, a, b, c_m])){:}
function tmp_2 = code(c_s, x, y, z, t, a, b, c_m)
	t_1 = -4.0 * (t * (a / c_m));
	tmp = 0.0;
	if (y <= -1.1e-107)
		tmp = 9.0 * (y / (z * (c_m / x)));
	elseif (y <= -1.1e-296)
		tmp = t_1;
	elseif (y <= 1.1e-209)
		tmp = (b / z) * (1.0 / c_m);
	elseif (y <= 3.7e-183)
		tmp = -4.0 * ((t * a) / c_m);
	elseif (y <= 1.25e-19)
		tmp = b * (1.0 / (z * c_m));
	elseif (y <= 4.8e+113)
		tmp = x * (y * (9.0 / (z * c_m)));
	elseif (y <= 2.3e+168)
		tmp = t_1;
	else
		tmp = x * ((y / c_m) * (9.0 / z));
	end
	tmp_2 = c_s * tmp;
end
c\_m = N[Abs[c], $MachinePrecision]
c\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[c]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
code[c$95$s_, x_, y_, z_, t_, a_, b_, c$95$m_] := Block[{t$95$1 = N[(-4.0 * N[(t * N[(a / c$95$m), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, N[(c$95$s * If[LessEqual[y, -1.1e-107], N[(9.0 * N[(y / N[(z * N[(c$95$m / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, -1.1e-296], t$95$1, If[LessEqual[y, 1.1e-209], N[(N[(b / z), $MachinePrecision] * N[(1.0 / c$95$m), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 3.7e-183], N[(-4.0 * N[(N[(t * a), $MachinePrecision] / c$95$m), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 1.25e-19], N[(b * N[(1.0 / N[(z * c$95$m), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 4.8e+113], N[(x * N[(y * N[(9.0 / N[(z * c$95$m), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 2.3e+168], t$95$1, N[(x * N[(N[(y / c$95$m), $MachinePrecision] * N[(9.0 / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]]]]]), $MachinePrecision]]
\begin{array}{l}
c\_m = \left|c\right|
\\
c\_s = \mathsf{copysign}\left(1, c\right)
\\
[x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\\\
[x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\
\\
\begin{array}{l}
t_1 := -4 \cdot \left(t \cdot \frac{a}{c\_m}\right)\\
c\_s \cdot \begin{array}{l}
\mathbf{if}\;y \leq -1.1 \cdot 10^{-107}:\\
\;\;\;\;9 \cdot \frac{y}{z \cdot \frac{c\_m}{x}}\\

\mathbf{elif}\;y \leq -1.1 \cdot 10^{-296}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;y \leq 1.1 \cdot 10^{-209}:\\
\;\;\;\;\frac{b}{z} \cdot \frac{1}{c\_m}\\

\mathbf{elif}\;y \leq 3.7 \cdot 10^{-183}:\\
\;\;\;\;-4 \cdot \frac{t \cdot a}{c\_m}\\

\mathbf{elif}\;y \leq 1.25 \cdot 10^{-19}:\\
\;\;\;\;b \cdot \frac{1}{z \cdot c\_m}\\

\mathbf{elif}\;y \leq 4.8 \cdot 10^{+113}:\\
\;\;\;\;x \cdot \left(y \cdot \frac{9}{z \cdot c\_m}\right)\\

\mathbf{elif}\;y \leq 2.3 \cdot 10^{+168}:\\
\;\;\;\;t\_1\\

\mathbf{else}:\\
\;\;\;\;x \cdot \left(\frac{y}{c\_m} \cdot \frac{9}{z}\right)\\


\end{array}
\end{array}
\end{array}
Derivation
  1. Split input into 7 regimes
  2. if y < -1.10000000000000006e-107

    1. Initial program 84.9%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative84.9%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-84.9%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative84.9%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*82.8%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative82.8%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-82.8%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative82.8%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*82.8%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*84.8%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative84.8%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified84.8%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 80.2%

      \[\leadsto \color{blue}{\frac{-4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c} + \left(9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}\right)}{z}} \]
    6. Taylor expanded in x around inf 52.3%

      \[\leadsto \color{blue}{9 \cdot \frac{x \cdot y}{c \cdot z}} \]
    7. Step-by-step derivation
      1. times-frac47.7%

        \[\leadsto 9 \cdot \color{blue}{\left(\frac{x}{c} \cdot \frac{y}{z}\right)} \]
    8. Simplified47.7%

      \[\leadsto \color{blue}{9 \cdot \left(\frac{x}{c} \cdot \frac{y}{z}\right)} \]
    9. Step-by-step derivation
      1. clear-num47.7%

        \[\leadsto 9 \cdot \left(\color{blue}{\frac{1}{\frac{c}{x}}} \cdot \frac{y}{z}\right) \]
      2. frac-times52.2%

        \[\leadsto 9 \cdot \color{blue}{\frac{1 \cdot y}{\frac{c}{x} \cdot z}} \]
      3. *-un-lft-identity52.2%

        \[\leadsto 9 \cdot \frac{\color{blue}{y}}{\frac{c}{x} \cdot z} \]
    10. Applied egg-rr52.2%

      \[\leadsto 9 \cdot \color{blue}{\frac{y}{\frac{c}{x} \cdot z}} \]

    if -1.10000000000000006e-107 < y < -1.10000000000000006e-296 or 4.79999999999999966e113 < y < 2.2999999999999999e168

    1. Initial program 72.5%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative72.5%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-72.5%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative72.5%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*77.3%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative77.3%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-77.3%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative77.3%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*77.3%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*77.3%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative77.3%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified77.3%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 70.7%

      \[\leadsto \color{blue}{\frac{-4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c} + \left(9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}\right)}{z}} \]
    6. Taylor expanded in a around inf 55.5%

      \[\leadsto \color{blue}{-4 \cdot \frac{a \cdot t}{c}} \]
    7. Step-by-step derivation
      1. *-commutative55.5%

        \[\leadsto -4 \cdot \frac{\color{blue}{t \cdot a}}{c} \]
      2. associate-/l*60.3%

        \[\leadsto -4 \cdot \color{blue}{\left(t \cdot \frac{a}{c}\right)} \]
    8. Simplified60.3%

      \[\leadsto \color{blue}{-4 \cdot \left(t \cdot \frac{a}{c}\right)} \]

    if -1.10000000000000006e-296 < y < 1.10000000000000005e-209

    1. Initial program 79.0%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative79.0%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-79.0%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative79.0%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*89.1%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative89.1%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-89.1%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative89.1%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*89.1%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*84.2%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative84.2%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified84.2%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Applied egg-rr76.4%

      \[\leadsto \color{blue}{\frac{\mathsf{fma}\left(x, 9 \cdot y, 4 \cdot \left(z \cdot \left(t \cdot a\right)\right)\right) + b}{z} \cdot \frac{1}{c}} \]
    6. Taylor expanded in b around inf 77.0%

      \[\leadsto \color{blue}{\frac{b}{z}} \cdot \frac{1}{c} \]

    if 1.10000000000000005e-209 < y < 3.6999999999999999e-183

    1. Initial program 83.5%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative83.5%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-83.5%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative83.5%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*83.2%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative83.2%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-83.2%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative83.2%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*83.2%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*83.5%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative83.5%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified83.5%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around inf 67.8%

      \[\leadsto \color{blue}{-4 \cdot \frac{a \cdot t}{c}} \]

    if 3.6999999999999999e-183 < y < 1.2500000000000001e-19

    1. Initial program 90.2%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative90.2%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-90.2%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative90.2%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*93.5%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative93.5%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-93.5%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative93.5%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*93.6%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*87.5%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative87.5%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified87.5%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in b around inf 52.3%

      \[\leadsto \color{blue}{\frac{b}{c \cdot z}} \]
    6. Step-by-step derivation
      1. *-commutative52.3%

        \[\leadsto \frac{b}{\color{blue}{z \cdot c}} \]
    7. Simplified52.3%

      \[\leadsto \color{blue}{\frac{b}{z \cdot c}} \]
    8. Step-by-step derivation
      1. div-inv52.4%

        \[\leadsto \color{blue}{b \cdot \frac{1}{z \cdot c}} \]
    9. Applied egg-rr52.4%

      \[\leadsto \color{blue}{b \cdot \frac{1}{z \cdot c}} \]

    if 1.2500000000000001e-19 < y < 4.79999999999999966e113

    1. Initial program 79.2%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative79.2%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-79.2%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative79.2%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*74.9%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative74.9%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-74.9%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative74.9%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*74.9%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*79.0%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative79.0%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified79.0%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Step-by-step derivation
      1. add-cube-cbrt78.8%

        \[\leadsto \frac{\left(\color{blue}{\left(\sqrt[3]{x \cdot \left(9 \cdot y\right)} \cdot \sqrt[3]{x \cdot \left(9 \cdot y\right)}\right) \cdot \sqrt[3]{x \cdot \left(9 \cdot y\right)}} - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c} \]
      2. pow378.8%

        \[\leadsto \frac{\left(\color{blue}{{\left(\sqrt[3]{x \cdot \left(9 \cdot y\right)}\right)}^{3}} - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c} \]
      3. associate-*r*78.8%

        \[\leadsto \frac{\left({\left(\sqrt[3]{\color{blue}{\left(x \cdot 9\right) \cdot y}}\right)}^{3} - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c} \]
      4. *-commutative78.8%

        \[\leadsto \frac{\left({\left(\sqrt[3]{\color{blue}{\left(9 \cdot x\right)} \cdot y}\right)}^{3} - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c} \]
      5. associate-*l*78.8%

        \[\leadsto \frac{\left({\left(\sqrt[3]{\color{blue}{9 \cdot \left(x \cdot y\right)}}\right)}^{3} - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c} \]
    6. Applied egg-rr78.8%

      \[\leadsto \frac{\left(\color{blue}{{\left(\sqrt[3]{9 \cdot \left(x \cdot y\right)}\right)}^{3}} - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c} \]
    7. Taylor expanded in x around inf 53.9%

      \[\leadsto \color{blue}{\frac{x \cdot \left(y \cdot {\left(\sqrt[3]{9}\right)}^{3}\right)}{c \cdot z}} \]
    8. Step-by-step derivation
      1. associate-/l*58.0%

        \[\leadsto \color{blue}{x \cdot \frac{y \cdot {\left(\sqrt[3]{9}\right)}^{3}}{c \cdot z}} \]
      2. rem-cube-cbrt58.0%

        \[\leadsto x \cdot \frac{y \cdot \color{blue}{9}}{c \cdot z} \]
      3. associate-/l*58.0%

        \[\leadsto x \cdot \color{blue}{\left(y \cdot \frac{9}{c \cdot z}\right)} \]
      4. *-commutative58.0%

        \[\leadsto x \cdot \left(y \cdot \frac{9}{\color{blue}{z \cdot c}}\right) \]
    9. Simplified58.0%

      \[\leadsto \color{blue}{x \cdot \left(y \cdot \frac{9}{z \cdot c}\right)} \]

    if 2.2999999999999999e168 < y

    1. Initial program 86.3%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative86.3%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-86.3%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative86.3%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*81.4%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative81.4%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-81.4%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative81.4%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*81.5%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*81.6%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative81.6%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified81.6%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Step-by-step derivation
      1. add-cube-cbrt81.4%

        \[\leadsto \frac{\left(\color{blue}{\left(\sqrt[3]{x \cdot \left(9 \cdot y\right)} \cdot \sqrt[3]{x \cdot \left(9 \cdot y\right)}\right) \cdot \sqrt[3]{x \cdot \left(9 \cdot y\right)}} - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c} \]
      2. pow381.4%

        \[\leadsto \frac{\left(\color{blue}{{\left(\sqrt[3]{x \cdot \left(9 \cdot y\right)}\right)}^{3}} - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c} \]
      3. associate-*r*81.2%

        \[\leadsto \frac{\left({\left(\sqrt[3]{\color{blue}{\left(x \cdot 9\right) \cdot y}}\right)}^{3} - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c} \]
      4. *-commutative81.2%

        \[\leadsto \frac{\left({\left(\sqrt[3]{\color{blue}{\left(9 \cdot x\right)} \cdot y}\right)}^{3} - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c} \]
      5. associate-*l*81.2%

        \[\leadsto \frac{\left({\left(\sqrt[3]{\color{blue}{9 \cdot \left(x \cdot y\right)}}\right)}^{3} - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c} \]
    6. Applied egg-rr81.2%

      \[\leadsto \frac{\left(\color{blue}{{\left(\sqrt[3]{9 \cdot \left(x \cdot y\right)}\right)}^{3}} - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c} \]
    7. Taylor expanded in x around inf 63.5%

      \[\leadsto \color{blue}{\frac{x \cdot \left(y \cdot {\left(\sqrt[3]{9}\right)}^{3}\right)}{c \cdot z}} \]
    8. Step-by-step derivation
      1. associate-/l*72.2%

        \[\leadsto \color{blue}{x \cdot \frac{y \cdot {\left(\sqrt[3]{9}\right)}^{3}}{c \cdot z}} \]
      2. rem-cube-cbrt72.2%

        \[\leadsto x \cdot \frac{y \cdot \color{blue}{9}}{c \cdot z} \]
      3. times-frac85.8%

        \[\leadsto x \cdot \color{blue}{\left(\frac{y}{c} \cdot \frac{9}{z}\right)} \]
    9. Simplified85.8%

      \[\leadsto \color{blue}{x \cdot \left(\frac{y}{c} \cdot \frac{9}{z}\right)} \]
  3. Recombined 7 regimes into one program.
  4. Final simplification59.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1.1 \cdot 10^{-107}:\\ \;\;\;\;9 \cdot \frac{y}{z \cdot \frac{c}{x}}\\ \mathbf{elif}\;y \leq -1.1 \cdot 10^{-296}:\\ \;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c}\right)\\ \mathbf{elif}\;y \leq 1.1 \cdot 10^{-209}:\\ \;\;\;\;\frac{b}{z} \cdot \frac{1}{c}\\ \mathbf{elif}\;y \leq 3.7 \cdot 10^{-183}:\\ \;\;\;\;-4 \cdot \frac{t \cdot a}{c}\\ \mathbf{elif}\;y \leq 1.25 \cdot 10^{-19}:\\ \;\;\;\;b \cdot \frac{1}{z \cdot c}\\ \mathbf{elif}\;y \leq 4.8 \cdot 10^{+113}:\\ \;\;\;\;x \cdot \left(y \cdot \frac{9}{z \cdot c}\right)\\ \mathbf{elif}\;y \leq 2.3 \cdot 10^{+168}:\\ \;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c}\right)\\ \mathbf{else}:\\ \;\;\;\;x \cdot \left(\frac{y}{c} \cdot \frac{9}{z}\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 7: 83.5% accurate, 0.6× speedup?

\[\begin{array}{l} c\_m = \left|c\right| \\ c\_s = \mathsf{copysign}\left(1, c\right) \\ [x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\\\ [x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\ \\ c\_s \cdot \begin{array}{l} \mathbf{if}\;c\_m \leq 2.7 \cdot 10^{+65}:\\ \;\;\;\;\frac{b + \left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right)}{z \cdot c\_m}\\ \mathbf{else}:\\ \;\;\;\;\frac{t \cdot \left(-4 \cdot \frac{z \cdot a}{c\_m} + \frac{b}{t \cdot c\_m}\right) + \frac{y}{c\_m} \cdot \left(x \cdot 9\right)}{z}\\ \end{array} \end{array} \]
c\_m = (fabs.f64 c)
c\_s = (copysign.f64 #s(literal 1 binary64) c)
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
(FPCore (c_s x y z t a b c_m)
 :precision binary64
 (*
  c_s
  (if (<= c_m 2.7e+65)
    (/ (+ b (- (* x (* 9.0 y)) (* (* z 4.0) (* t a)))) (* z c_m))
    (/
     (+
      (* t (+ (* -4.0 (/ (* z a) c_m)) (/ b (* t c_m))))
      (* (/ y c_m) (* x 9.0)))
     z))))
c\_m = fabs(c);
c\_s = copysign(1.0, c);
assert(x < y && y < z && z < t && t < a && a < b && b < c_m);
assert(x < y && y < z && z < t && t < a && a < b && b < c_m);
double code(double c_s, double x, double y, double z, double t, double a, double b, double c_m) {
	double tmp;
	if (c_m <= 2.7e+65) {
		tmp = (b + ((x * (9.0 * y)) - ((z * 4.0) * (t * a)))) / (z * c_m);
	} else {
		tmp = ((t * ((-4.0 * ((z * a) / c_m)) + (b / (t * c_m)))) + ((y / c_m) * (x * 9.0))) / z;
	}
	return c_s * tmp;
}
c\_m = abs(c)
c\_s = copysign(1.0d0, c)
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
real(8) function code(c_s, x, y, z, t, a, b, c_m)
    real(8), intent (in) :: c_s
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c_m
    real(8) :: tmp
    if (c_m <= 2.7d+65) then
        tmp = (b + ((x * (9.0d0 * y)) - ((z * 4.0d0) * (t * a)))) / (z * c_m)
    else
        tmp = ((t * (((-4.0d0) * ((z * a) / c_m)) + (b / (t * c_m)))) + ((y / c_m) * (x * 9.0d0))) / z
    end if
    code = c_s * tmp
end function
c\_m = Math.abs(c);
c\_s = Math.copySign(1.0, c);
assert x < y && y < z && z < t && t < a && a < b && b < c_m;
assert x < y && y < z && z < t && t < a && a < b && b < c_m;
public static double code(double c_s, double x, double y, double z, double t, double a, double b, double c_m) {
	double tmp;
	if (c_m <= 2.7e+65) {
		tmp = (b + ((x * (9.0 * y)) - ((z * 4.0) * (t * a)))) / (z * c_m);
	} else {
		tmp = ((t * ((-4.0 * ((z * a) / c_m)) + (b / (t * c_m)))) + ((y / c_m) * (x * 9.0))) / z;
	}
	return c_s * tmp;
}
c\_m = math.fabs(c)
c\_s = math.copysign(1.0, c)
[x, y, z, t, a, b, c_m] = sort([x, y, z, t, a, b, c_m])
[x, y, z, t, a, b, c_m] = sort([x, y, z, t, a, b, c_m])
def code(c_s, x, y, z, t, a, b, c_m):
	tmp = 0
	if c_m <= 2.7e+65:
		tmp = (b + ((x * (9.0 * y)) - ((z * 4.0) * (t * a)))) / (z * c_m)
	else:
		tmp = ((t * ((-4.0 * ((z * a) / c_m)) + (b / (t * c_m)))) + ((y / c_m) * (x * 9.0))) / z
	return c_s * tmp
c\_m = abs(c)
c\_s = copysign(1.0, c)
x, y, z, t, a, b, c_m = sort([x, y, z, t, a, b, c_m])
x, y, z, t, a, b, c_m = sort([x, y, z, t, a, b, c_m])
function code(c_s, x, y, z, t, a, b, c_m)
	tmp = 0.0
	if (c_m <= 2.7e+65)
		tmp = Float64(Float64(b + Float64(Float64(x * Float64(9.0 * y)) - Float64(Float64(z * 4.0) * Float64(t * a)))) / Float64(z * c_m));
	else
		tmp = Float64(Float64(Float64(t * Float64(Float64(-4.0 * Float64(Float64(z * a) / c_m)) + Float64(b / Float64(t * c_m)))) + Float64(Float64(y / c_m) * Float64(x * 9.0))) / z);
	end
	return Float64(c_s * tmp)
end
c\_m = abs(c);
c\_s = sign(c) * abs(1.0);
x, y, z, t, a, b, c_m = num2cell(sort([x, y, z, t, a, b, c_m])){:}
x, y, z, t, a, b, c_m = num2cell(sort([x, y, z, t, a, b, c_m])){:}
function tmp_2 = code(c_s, x, y, z, t, a, b, c_m)
	tmp = 0.0;
	if (c_m <= 2.7e+65)
		tmp = (b + ((x * (9.0 * y)) - ((z * 4.0) * (t * a)))) / (z * c_m);
	else
		tmp = ((t * ((-4.0 * ((z * a) / c_m)) + (b / (t * c_m)))) + ((y / c_m) * (x * 9.0))) / z;
	end
	tmp_2 = c_s * tmp;
end
c\_m = N[Abs[c], $MachinePrecision]
c\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[c]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
code[c$95$s_, x_, y_, z_, t_, a_, b_, c$95$m_] := N[(c$95$s * If[LessEqual[c$95$m, 2.7e+65], N[(N[(b + N[(N[(x * N[(9.0 * y), $MachinePrecision]), $MachinePrecision] - N[(N[(z * 4.0), $MachinePrecision] * N[(t * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(z * c$95$m), $MachinePrecision]), $MachinePrecision], N[(N[(N[(t * N[(N[(-4.0 * N[(N[(z * a), $MachinePrecision] / c$95$m), $MachinePrecision]), $MachinePrecision] + N[(b / N[(t * c$95$m), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(N[(y / c$95$m), $MachinePrecision] * N[(x * 9.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / z), $MachinePrecision]]), $MachinePrecision]
\begin{array}{l}
c\_m = \left|c\right|
\\
c\_s = \mathsf{copysign}\left(1, c\right)
\\
[x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\\\
[x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\
\\
c\_s \cdot \begin{array}{l}
\mathbf{if}\;c\_m \leq 2.7 \cdot 10^{+65}:\\
\;\;\;\;\frac{b + \left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right)}{z \cdot c\_m}\\

\mathbf{else}:\\
\;\;\;\;\frac{t \cdot \left(-4 \cdot \frac{z \cdot a}{c\_m} + \frac{b}{t \cdot c\_m}\right) + \frac{y}{c\_m} \cdot \left(x \cdot 9\right)}{z}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if c < 2.70000000000000019e65

    1. Initial program 84.4%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative84.4%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-84.4%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative84.4%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*84.7%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative84.7%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-84.7%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative84.7%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*84.7%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*85.7%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative85.7%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified85.7%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing

    if 2.70000000000000019e65 < c

    1. Initial program 70.3%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative70.3%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-70.3%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative70.3%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*72.1%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative72.1%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-72.1%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative72.1%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*72.1%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*68.3%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative68.3%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified68.3%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 79.0%

      \[\leadsto \color{blue}{\frac{-4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c} + \left(9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}\right)}{z}} \]
    6. Step-by-step derivation
      1. div-inv78.9%

        \[\leadsto \color{blue}{\left(-4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c} + \left(9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}\right)\right) \cdot \frac{1}{z}} \]
      2. fma-define78.9%

        \[\leadsto \color{blue}{\mathsf{fma}\left(-4, \frac{a \cdot \left(t \cdot z\right)}{c}, 9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}\right)} \cdot \frac{1}{z} \]
      3. associate-/l*83.1%

        \[\leadsto \mathsf{fma}\left(-4, \color{blue}{a \cdot \frac{t \cdot z}{c}}, 9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}\right) \cdot \frac{1}{z} \]
      4. fma-define83.1%

        \[\leadsto \mathsf{fma}\left(-4, a \cdot \frac{t \cdot z}{c}, \color{blue}{\mathsf{fma}\left(9, \frac{x \cdot y}{c}, \frac{b}{c}\right)}\right) \cdot \frac{1}{z} \]
      5. associate-/l*85.1%

        \[\leadsto \mathsf{fma}\left(-4, a \cdot \frac{t \cdot z}{c}, \mathsf{fma}\left(9, \color{blue}{x \cdot \frac{y}{c}}, \frac{b}{c}\right)\right) \cdot \frac{1}{z} \]
    7. Applied egg-rr85.1%

      \[\leadsto \color{blue}{\mathsf{fma}\left(-4, a \cdot \frac{t \cdot z}{c}, \mathsf{fma}\left(9, x \cdot \frac{y}{c}, \frac{b}{c}\right)\right) \cdot \frac{1}{z}} \]
    8. Simplified78.8%

      \[\leadsto \color{blue}{\frac{\frac{b + z \cdot \left(a \cdot \left(-4 \cdot t\right)\right)}{c} + \frac{y}{c} \cdot \left(9 \cdot x\right)}{z}} \]
    9. Taylor expanded in t around inf 78.6%

      \[\leadsto \frac{\color{blue}{t \cdot \left(-4 \cdot \frac{a \cdot z}{c} + \frac{b}{c \cdot t}\right)} + \frac{y}{c} \cdot \left(9 \cdot x\right)}{z} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification84.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;c \leq 2.7 \cdot 10^{+65}:\\ \;\;\;\;\frac{b + \left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right)}{z \cdot c}\\ \mathbf{else}:\\ \;\;\;\;\frac{t \cdot \left(-4 \cdot \frac{z \cdot a}{c} + \frac{b}{t \cdot c}\right) + \frac{y}{c} \cdot \left(x \cdot 9\right)}{z}\\ \end{array} \]
  5. Add Preprocessing

Alternative 8: 65.0% accurate, 0.7× speedup?

\[\begin{array}{l} c\_m = \left|c\right| \\ c\_s = \mathsf{copysign}\left(1, c\right) \\ [x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\\\ [x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\ \\ c\_s \cdot \begin{array}{l} \mathbf{if}\;y \leq -2.4 \cdot 10^{-27}:\\ \;\;\;\;9 \cdot \frac{y}{z \cdot \frac{c\_m}{x}}\\ \mathbf{elif}\;y \leq 115000000:\\ \;\;\;\;\frac{b - z \cdot \left(4 \cdot \left(t \cdot a\right)\right)}{z \cdot c\_m}\\ \mathbf{elif}\;y \leq 4.8 \cdot 10^{+113}:\\ \;\;\;\;\frac{b + x \cdot \left(9 \cdot y\right)}{z \cdot c\_m}\\ \mathbf{elif}\;y \leq 1.5 \cdot 10^{+167}:\\ \;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c\_m}\right)\\ \mathbf{else}:\\ \;\;\;\;x \cdot \left(\frac{y}{c\_m} \cdot \frac{9}{z}\right)\\ \end{array} \end{array} \]
c\_m = (fabs.f64 c)
c\_s = (copysign.f64 #s(literal 1 binary64) c)
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
(FPCore (c_s x y z t a b c_m)
 :precision binary64
 (*
  c_s
  (if (<= y -2.4e-27)
    (* 9.0 (/ y (* z (/ c_m x))))
    (if (<= y 115000000.0)
      (/ (- b (* z (* 4.0 (* t a)))) (* z c_m))
      (if (<= y 4.8e+113)
        (/ (+ b (* x (* 9.0 y))) (* z c_m))
        (if (<= y 1.5e+167)
          (* -4.0 (* t (/ a c_m)))
          (* x (* (/ y c_m) (/ 9.0 z)))))))))
c\_m = fabs(c);
c\_s = copysign(1.0, c);
assert(x < y && y < z && z < t && t < a && a < b && b < c_m);
assert(x < y && y < z && z < t && t < a && a < b && b < c_m);
double code(double c_s, double x, double y, double z, double t, double a, double b, double c_m) {
	double tmp;
	if (y <= -2.4e-27) {
		tmp = 9.0 * (y / (z * (c_m / x)));
	} else if (y <= 115000000.0) {
		tmp = (b - (z * (4.0 * (t * a)))) / (z * c_m);
	} else if (y <= 4.8e+113) {
		tmp = (b + (x * (9.0 * y))) / (z * c_m);
	} else if (y <= 1.5e+167) {
		tmp = -4.0 * (t * (a / c_m));
	} else {
		tmp = x * ((y / c_m) * (9.0 / z));
	}
	return c_s * tmp;
}
c\_m = abs(c)
c\_s = copysign(1.0d0, c)
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
real(8) function code(c_s, x, y, z, t, a, b, c_m)
    real(8), intent (in) :: c_s
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c_m
    real(8) :: tmp
    if (y <= (-2.4d-27)) then
        tmp = 9.0d0 * (y / (z * (c_m / x)))
    else if (y <= 115000000.0d0) then
        tmp = (b - (z * (4.0d0 * (t * a)))) / (z * c_m)
    else if (y <= 4.8d+113) then
        tmp = (b + (x * (9.0d0 * y))) / (z * c_m)
    else if (y <= 1.5d+167) then
        tmp = (-4.0d0) * (t * (a / c_m))
    else
        tmp = x * ((y / c_m) * (9.0d0 / z))
    end if
    code = c_s * tmp
end function
c\_m = Math.abs(c);
c\_s = Math.copySign(1.0, c);
assert x < y && y < z && z < t && t < a && a < b && b < c_m;
assert x < y && y < z && z < t && t < a && a < b && b < c_m;
public static double code(double c_s, double x, double y, double z, double t, double a, double b, double c_m) {
	double tmp;
	if (y <= -2.4e-27) {
		tmp = 9.0 * (y / (z * (c_m / x)));
	} else if (y <= 115000000.0) {
		tmp = (b - (z * (4.0 * (t * a)))) / (z * c_m);
	} else if (y <= 4.8e+113) {
		tmp = (b + (x * (9.0 * y))) / (z * c_m);
	} else if (y <= 1.5e+167) {
		tmp = -4.0 * (t * (a / c_m));
	} else {
		tmp = x * ((y / c_m) * (9.0 / z));
	}
	return c_s * tmp;
}
c\_m = math.fabs(c)
c\_s = math.copysign(1.0, c)
[x, y, z, t, a, b, c_m] = sort([x, y, z, t, a, b, c_m])
[x, y, z, t, a, b, c_m] = sort([x, y, z, t, a, b, c_m])
def code(c_s, x, y, z, t, a, b, c_m):
	tmp = 0
	if y <= -2.4e-27:
		tmp = 9.0 * (y / (z * (c_m / x)))
	elif y <= 115000000.0:
		tmp = (b - (z * (4.0 * (t * a)))) / (z * c_m)
	elif y <= 4.8e+113:
		tmp = (b + (x * (9.0 * y))) / (z * c_m)
	elif y <= 1.5e+167:
		tmp = -4.0 * (t * (a / c_m))
	else:
		tmp = x * ((y / c_m) * (9.0 / z))
	return c_s * tmp
c\_m = abs(c)
c\_s = copysign(1.0, c)
x, y, z, t, a, b, c_m = sort([x, y, z, t, a, b, c_m])
x, y, z, t, a, b, c_m = sort([x, y, z, t, a, b, c_m])
function code(c_s, x, y, z, t, a, b, c_m)
	tmp = 0.0
	if (y <= -2.4e-27)
		tmp = Float64(9.0 * Float64(y / Float64(z * Float64(c_m / x))));
	elseif (y <= 115000000.0)
		tmp = Float64(Float64(b - Float64(z * Float64(4.0 * Float64(t * a)))) / Float64(z * c_m));
	elseif (y <= 4.8e+113)
		tmp = Float64(Float64(b + Float64(x * Float64(9.0 * y))) / Float64(z * c_m));
	elseif (y <= 1.5e+167)
		tmp = Float64(-4.0 * Float64(t * Float64(a / c_m)));
	else
		tmp = Float64(x * Float64(Float64(y / c_m) * Float64(9.0 / z)));
	end
	return Float64(c_s * tmp)
end
c\_m = abs(c);
c\_s = sign(c) * abs(1.0);
x, y, z, t, a, b, c_m = num2cell(sort([x, y, z, t, a, b, c_m])){:}
x, y, z, t, a, b, c_m = num2cell(sort([x, y, z, t, a, b, c_m])){:}
function tmp_2 = code(c_s, x, y, z, t, a, b, c_m)
	tmp = 0.0;
	if (y <= -2.4e-27)
		tmp = 9.0 * (y / (z * (c_m / x)));
	elseif (y <= 115000000.0)
		tmp = (b - (z * (4.0 * (t * a)))) / (z * c_m);
	elseif (y <= 4.8e+113)
		tmp = (b + (x * (9.0 * y))) / (z * c_m);
	elseif (y <= 1.5e+167)
		tmp = -4.0 * (t * (a / c_m));
	else
		tmp = x * ((y / c_m) * (9.0 / z));
	end
	tmp_2 = c_s * tmp;
end
c\_m = N[Abs[c], $MachinePrecision]
c\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[c]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
code[c$95$s_, x_, y_, z_, t_, a_, b_, c$95$m_] := N[(c$95$s * If[LessEqual[y, -2.4e-27], N[(9.0 * N[(y / N[(z * N[(c$95$m / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 115000000.0], N[(N[(b - N[(z * N[(4.0 * N[(t * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(z * c$95$m), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 4.8e+113], N[(N[(b + N[(x * N[(9.0 * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(z * c$95$m), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 1.5e+167], N[(-4.0 * N[(t * N[(a / c$95$m), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x * N[(N[(y / c$95$m), $MachinePrecision] * N[(9.0 / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]]), $MachinePrecision]
\begin{array}{l}
c\_m = \left|c\right|
\\
c\_s = \mathsf{copysign}\left(1, c\right)
\\
[x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\\\
[x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\
\\
c\_s \cdot \begin{array}{l}
\mathbf{if}\;y \leq -2.4 \cdot 10^{-27}:\\
\;\;\;\;9 \cdot \frac{y}{z \cdot \frac{c\_m}{x}}\\

\mathbf{elif}\;y \leq 115000000:\\
\;\;\;\;\frac{b - z \cdot \left(4 \cdot \left(t \cdot a\right)\right)}{z \cdot c\_m}\\

\mathbf{elif}\;y \leq 4.8 \cdot 10^{+113}:\\
\;\;\;\;\frac{b + x \cdot \left(9 \cdot y\right)}{z \cdot c\_m}\\

\mathbf{elif}\;y \leq 1.5 \cdot 10^{+167}:\\
\;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c\_m}\right)\\

\mathbf{else}:\\
\;\;\;\;x \cdot \left(\frac{y}{c\_m} \cdot \frac{9}{z}\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 5 regimes
  2. if y < -2.40000000000000002e-27

    1. Initial program 83.4%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative83.4%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-83.4%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative83.4%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*82.0%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative82.0%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-82.0%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative82.0%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*81.9%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*83.3%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative83.3%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified83.3%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 77.4%

      \[\leadsto \color{blue}{\frac{-4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c} + \left(9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}\right)}{z}} \]
    6. Taylor expanded in x around inf 59.4%

      \[\leadsto \color{blue}{9 \cdot \frac{x \cdot y}{c \cdot z}} \]
    7. Step-by-step derivation
      1. times-frac57.2%

        \[\leadsto 9 \cdot \color{blue}{\left(\frac{x}{c} \cdot \frac{y}{z}\right)} \]
    8. Simplified57.2%

      \[\leadsto \color{blue}{9 \cdot \left(\frac{x}{c} \cdot \frac{y}{z}\right)} \]
    9. Step-by-step derivation
      1. clear-num57.2%

        \[\leadsto 9 \cdot \left(\color{blue}{\frac{1}{\frac{c}{x}}} \cdot \frac{y}{z}\right) \]
      2. frac-times62.0%

        \[\leadsto 9 \cdot \color{blue}{\frac{1 \cdot y}{\frac{c}{x} \cdot z}} \]
      3. *-un-lft-identity62.0%

        \[\leadsto 9 \cdot \frac{\color{blue}{y}}{\frac{c}{x} \cdot z} \]
    10. Applied egg-rr62.0%

      \[\leadsto 9 \cdot \color{blue}{\frac{y}{\frac{c}{x} \cdot z}} \]

    if -2.40000000000000002e-27 < y < 1.15e8

    1. Initial program 81.4%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative81.4%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-81.4%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative81.4%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*84.4%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative84.4%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-84.4%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative84.4%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*84.4%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*84.6%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative84.6%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified84.6%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around 0 72.2%

      \[\leadsto \color{blue}{\frac{b - 4 \cdot \left(a \cdot \left(t \cdot z\right)\right)}{c \cdot z}} \]
    6. Step-by-step derivation
      1. *-commutative72.2%

        \[\leadsto \frac{b - 4 \cdot \left(a \cdot \left(t \cdot z\right)\right)}{\color{blue}{z \cdot c}} \]
      2. associate-*r*72.2%

        \[\leadsto \frac{b - \color{blue}{\left(4 \cdot a\right) \cdot \left(t \cdot z\right)}}{z \cdot c} \]
    7. Simplified72.2%

      \[\leadsto \color{blue}{\frac{b - \left(4 \cdot a\right) \cdot \left(t \cdot z\right)}{z \cdot c}} \]
    8. Taylor expanded in a around 0 72.2%

      \[\leadsto \frac{b - \color{blue}{4 \cdot \left(a \cdot \left(t \cdot z\right)\right)}}{z \cdot c} \]
    9. Step-by-step derivation
      1. associate-*r*75.3%

        \[\leadsto \frac{b - 4 \cdot \color{blue}{\left(\left(a \cdot t\right) \cdot z\right)}}{z \cdot c} \]
      2. *-commutative75.3%

        \[\leadsto \frac{b - \color{blue}{\left(\left(a \cdot t\right) \cdot z\right) \cdot 4}}{z \cdot c} \]
      3. *-commutative75.3%

        \[\leadsto \frac{b - \color{blue}{\left(z \cdot \left(a \cdot t\right)\right)} \cdot 4}{z \cdot c} \]
      4. associate-*l*75.3%

        \[\leadsto \frac{b - \color{blue}{z \cdot \left(\left(a \cdot t\right) \cdot 4\right)}}{z \cdot c} \]
    10. Simplified75.3%

      \[\leadsto \frac{b - \color{blue}{z \cdot \left(\left(a \cdot t\right) \cdot 4\right)}}{z \cdot c} \]

    if 1.15e8 < y < 4.79999999999999966e113

    1. Initial program 80.8%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative80.8%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-80.8%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative80.8%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*80.8%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative80.8%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-80.8%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative80.8%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*80.8%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*80.7%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative80.7%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified80.7%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 61.9%

      \[\leadsto \frac{\color{blue}{9 \cdot \left(x \cdot y\right)} + b}{z \cdot c} \]
    6. Step-by-step derivation
      1. associate-*r*61.9%

        \[\leadsto \frac{\color{blue}{\left(9 \cdot x\right) \cdot y} + b}{z \cdot c} \]
      2. *-commutative61.9%

        \[\leadsto \frac{\color{blue}{\left(x \cdot 9\right)} \cdot y + b}{z \cdot c} \]
      3. associate-*r*61.9%

        \[\leadsto \frac{\color{blue}{x \cdot \left(9 \cdot y\right)} + b}{z \cdot c} \]
    7. Simplified61.9%

      \[\leadsto \frac{\color{blue}{x \cdot \left(9 \cdot y\right)} + b}{z \cdot c} \]

    if 4.79999999999999966e113 < y < 1.50000000000000006e167

    1. Initial program 71.8%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative71.8%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-71.8%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative71.8%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*71.8%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative71.8%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-71.8%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative71.8%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*71.8%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*65.0%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative65.0%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified65.0%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 59.5%

      \[\leadsto \color{blue}{\frac{-4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c} + \left(9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}\right)}{z}} \]
    6. Taylor expanded in a around inf 57.6%

      \[\leadsto \color{blue}{-4 \cdot \frac{a \cdot t}{c}} \]
    7. Step-by-step derivation
      1. *-commutative57.6%

        \[\leadsto -4 \cdot \frac{\color{blue}{t \cdot a}}{c} \]
      2. associate-/l*57.8%

        \[\leadsto -4 \cdot \color{blue}{\left(t \cdot \frac{a}{c}\right)} \]
    8. Simplified57.8%

      \[\leadsto \color{blue}{-4 \cdot \left(t \cdot \frac{a}{c}\right)} \]

    if 1.50000000000000006e167 < y

    1. Initial program 86.3%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative86.3%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-86.3%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative86.3%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*81.4%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative81.4%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-81.4%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative81.4%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*81.5%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*81.6%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative81.6%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified81.6%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Step-by-step derivation
      1. add-cube-cbrt81.4%

        \[\leadsto \frac{\left(\color{blue}{\left(\sqrt[3]{x \cdot \left(9 \cdot y\right)} \cdot \sqrt[3]{x \cdot \left(9 \cdot y\right)}\right) \cdot \sqrt[3]{x \cdot \left(9 \cdot y\right)}} - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c} \]
      2. pow381.4%

        \[\leadsto \frac{\left(\color{blue}{{\left(\sqrt[3]{x \cdot \left(9 \cdot y\right)}\right)}^{3}} - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c} \]
      3. associate-*r*81.2%

        \[\leadsto \frac{\left({\left(\sqrt[3]{\color{blue}{\left(x \cdot 9\right) \cdot y}}\right)}^{3} - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c} \]
      4. *-commutative81.2%

        \[\leadsto \frac{\left({\left(\sqrt[3]{\color{blue}{\left(9 \cdot x\right)} \cdot y}\right)}^{3} - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c} \]
      5. associate-*l*81.2%

        \[\leadsto \frac{\left({\left(\sqrt[3]{\color{blue}{9 \cdot \left(x \cdot y\right)}}\right)}^{3} - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c} \]
    6. Applied egg-rr81.2%

      \[\leadsto \frac{\left(\color{blue}{{\left(\sqrt[3]{9 \cdot \left(x \cdot y\right)}\right)}^{3}} - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c} \]
    7. Taylor expanded in x around inf 63.5%

      \[\leadsto \color{blue}{\frac{x \cdot \left(y \cdot {\left(\sqrt[3]{9}\right)}^{3}\right)}{c \cdot z}} \]
    8. Step-by-step derivation
      1. associate-/l*72.2%

        \[\leadsto \color{blue}{x \cdot \frac{y \cdot {\left(\sqrt[3]{9}\right)}^{3}}{c \cdot z}} \]
      2. rem-cube-cbrt72.2%

        \[\leadsto x \cdot \frac{y \cdot \color{blue}{9}}{c \cdot z} \]
      3. times-frac85.8%

        \[\leadsto x \cdot \color{blue}{\left(\frac{y}{c} \cdot \frac{9}{z}\right)} \]
    9. Simplified85.8%

      \[\leadsto \color{blue}{x \cdot \left(\frac{y}{c} \cdot \frac{9}{z}\right)} \]
  3. Recombined 5 regimes into one program.
  4. Final simplification70.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -2.4 \cdot 10^{-27}:\\ \;\;\;\;9 \cdot \frac{y}{z \cdot \frac{c}{x}}\\ \mathbf{elif}\;y \leq 115000000:\\ \;\;\;\;\frac{b - z \cdot \left(4 \cdot \left(t \cdot a\right)\right)}{z \cdot c}\\ \mathbf{elif}\;y \leq 4.8 \cdot 10^{+113}:\\ \;\;\;\;\frac{b + x \cdot \left(9 \cdot y\right)}{z \cdot c}\\ \mathbf{elif}\;y \leq 1.5 \cdot 10^{+167}:\\ \;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c}\right)\\ \mathbf{else}:\\ \;\;\;\;x \cdot \left(\frac{y}{c} \cdot \frac{9}{z}\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 9: 64.5% accurate, 0.7× speedup?

\[\begin{array}{l} c\_m = \left|c\right| \\ c\_s = \mathsf{copysign}\left(1, c\right) \\ [x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\\\ [x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\ \\ c\_s \cdot \begin{array}{l} \mathbf{if}\;y \leq -2.4 \cdot 10^{-27}:\\ \;\;\;\;9 \cdot \frac{y}{z \cdot \frac{c\_m}{x}}\\ \mathbf{elif}\;y \leq 72000000000:\\ \;\;\;\;\frac{b + t \cdot \left(a \cdot \left(z \cdot -4\right)\right)}{z \cdot c\_m}\\ \mathbf{elif}\;y \leq 4.8 \cdot 10^{+113}:\\ \;\;\;\;\frac{b + x \cdot \left(9 \cdot y\right)}{z \cdot c\_m}\\ \mathbf{elif}\;y \leq 2.9 \cdot 10^{+167}:\\ \;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c\_m}\right)\\ \mathbf{else}:\\ \;\;\;\;x \cdot \left(\frac{y}{c\_m} \cdot \frac{9}{z}\right)\\ \end{array} \end{array} \]
c\_m = (fabs.f64 c)
c\_s = (copysign.f64 #s(literal 1 binary64) c)
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
(FPCore (c_s x y z t a b c_m)
 :precision binary64
 (*
  c_s
  (if (<= y -2.4e-27)
    (* 9.0 (/ y (* z (/ c_m x))))
    (if (<= y 72000000000.0)
      (/ (+ b (* t (* a (* z -4.0)))) (* z c_m))
      (if (<= y 4.8e+113)
        (/ (+ b (* x (* 9.0 y))) (* z c_m))
        (if (<= y 2.9e+167)
          (* -4.0 (* t (/ a c_m)))
          (* x (* (/ y c_m) (/ 9.0 z)))))))))
c\_m = fabs(c);
c\_s = copysign(1.0, c);
assert(x < y && y < z && z < t && t < a && a < b && b < c_m);
assert(x < y && y < z && z < t && t < a && a < b && b < c_m);
double code(double c_s, double x, double y, double z, double t, double a, double b, double c_m) {
	double tmp;
	if (y <= -2.4e-27) {
		tmp = 9.0 * (y / (z * (c_m / x)));
	} else if (y <= 72000000000.0) {
		tmp = (b + (t * (a * (z * -4.0)))) / (z * c_m);
	} else if (y <= 4.8e+113) {
		tmp = (b + (x * (9.0 * y))) / (z * c_m);
	} else if (y <= 2.9e+167) {
		tmp = -4.0 * (t * (a / c_m));
	} else {
		tmp = x * ((y / c_m) * (9.0 / z));
	}
	return c_s * tmp;
}
c\_m = abs(c)
c\_s = copysign(1.0d0, c)
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
real(8) function code(c_s, x, y, z, t, a, b, c_m)
    real(8), intent (in) :: c_s
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c_m
    real(8) :: tmp
    if (y <= (-2.4d-27)) then
        tmp = 9.0d0 * (y / (z * (c_m / x)))
    else if (y <= 72000000000.0d0) then
        tmp = (b + (t * (a * (z * (-4.0d0))))) / (z * c_m)
    else if (y <= 4.8d+113) then
        tmp = (b + (x * (9.0d0 * y))) / (z * c_m)
    else if (y <= 2.9d+167) then
        tmp = (-4.0d0) * (t * (a / c_m))
    else
        tmp = x * ((y / c_m) * (9.0d0 / z))
    end if
    code = c_s * tmp
end function
c\_m = Math.abs(c);
c\_s = Math.copySign(1.0, c);
assert x < y && y < z && z < t && t < a && a < b && b < c_m;
assert x < y && y < z && z < t && t < a && a < b && b < c_m;
public static double code(double c_s, double x, double y, double z, double t, double a, double b, double c_m) {
	double tmp;
	if (y <= -2.4e-27) {
		tmp = 9.0 * (y / (z * (c_m / x)));
	} else if (y <= 72000000000.0) {
		tmp = (b + (t * (a * (z * -4.0)))) / (z * c_m);
	} else if (y <= 4.8e+113) {
		tmp = (b + (x * (9.0 * y))) / (z * c_m);
	} else if (y <= 2.9e+167) {
		tmp = -4.0 * (t * (a / c_m));
	} else {
		tmp = x * ((y / c_m) * (9.0 / z));
	}
	return c_s * tmp;
}
c\_m = math.fabs(c)
c\_s = math.copysign(1.0, c)
[x, y, z, t, a, b, c_m] = sort([x, y, z, t, a, b, c_m])
[x, y, z, t, a, b, c_m] = sort([x, y, z, t, a, b, c_m])
def code(c_s, x, y, z, t, a, b, c_m):
	tmp = 0
	if y <= -2.4e-27:
		tmp = 9.0 * (y / (z * (c_m / x)))
	elif y <= 72000000000.0:
		tmp = (b + (t * (a * (z * -4.0)))) / (z * c_m)
	elif y <= 4.8e+113:
		tmp = (b + (x * (9.0 * y))) / (z * c_m)
	elif y <= 2.9e+167:
		tmp = -4.0 * (t * (a / c_m))
	else:
		tmp = x * ((y / c_m) * (9.0 / z))
	return c_s * tmp
c\_m = abs(c)
c\_s = copysign(1.0, c)
x, y, z, t, a, b, c_m = sort([x, y, z, t, a, b, c_m])
x, y, z, t, a, b, c_m = sort([x, y, z, t, a, b, c_m])
function code(c_s, x, y, z, t, a, b, c_m)
	tmp = 0.0
	if (y <= -2.4e-27)
		tmp = Float64(9.0 * Float64(y / Float64(z * Float64(c_m / x))));
	elseif (y <= 72000000000.0)
		tmp = Float64(Float64(b + Float64(t * Float64(a * Float64(z * -4.0)))) / Float64(z * c_m));
	elseif (y <= 4.8e+113)
		tmp = Float64(Float64(b + Float64(x * Float64(9.0 * y))) / Float64(z * c_m));
	elseif (y <= 2.9e+167)
		tmp = Float64(-4.0 * Float64(t * Float64(a / c_m)));
	else
		tmp = Float64(x * Float64(Float64(y / c_m) * Float64(9.0 / z)));
	end
	return Float64(c_s * tmp)
end
c\_m = abs(c);
c\_s = sign(c) * abs(1.0);
x, y, z, t, a, b, c_m = num2cell(sort([x, y, z, t, a, b, c_m])){:}
x, y, z, t, a, b, c_m = num2cell(sort([x, y, z, t, a, b, c_m])){:}
function tmp_2 = code(c_s, x, y, z, t, a, b, c_m)
	tmp = 0.0;
	if (y <= -2.4e-27)
		tmp = 9.0 * (y / (z * (c_m / x)));
	elseif (y <= 72000000000.0)
		tmp = (b + (t * (a * (z * -4.0)))) / (z * c_m);
	elseif (y <= 4.8e+113)
		tmp = (b + (x * (9.0 * y))) / (z * c_m);
	elseif (y <= 2.9e+167)
		tmp = -4.0 * (t * (a / c_m));
	else
		tmp = x * ((y / c_m) * (9.0 / z));
	end
	tmp_2 = c_s * tmp;
end
c\_m = N[Abs[c], $MachinePrecision]
c\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[c]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
code[c$95$s_, x_, y_, z_, t_, a_, b_, c$95$m_] := N[(c$95$s * If[LessEqual[y, -2.4e-27], N[(9.0 * N[(y / N[(z * N[(c$95$m / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 72000000000.0], N[(N[(b + N[(t * N[(a * N[(z * -4.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(z * c$95$m), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 4.8e+113], N[(N[(b + N[(x * N[(9.0 * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(z * c$95$m), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 2.9e+167], N[(-4.0 * N[(t * N[(a / c$95$m), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x * N[(N[(y / c$95$m), $MachinePrecision] * N[(9.0 / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]]), $MachinePrecision]
\begin{array}{l}
c\_m = \left|c\right|
\\
c\_s = \mathsf{copysign}\left(1, c\right)
\\
[x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\\\
[x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\
\\
c\_s \cdot \begin{array}{l}
\mathbf{if}\;y \leq -2.4 \cdot 10^{-27}:\\
\;\;\;\;9 \cdot \frac{y}{z \cdot \frac{c\_m}{x}}\\

\mathbf{elif}\;y \leq 72000000000:\\
\;\;\;\;\frac{b + t \cdot \left(a \cdot \left(z \cdot -4\right)\right)}{z \cdot c\_m}\\

\mathbf{elif}\;y \leq 4.8 \cdot 10^{+113}:\\
\;\;\;\;\frac{b + x \cdot \left(9 \cdot y\right)}{z \cdot c\_m}\\

\mathbf{elif}\;y \leq 2.9 \cdot 10^{+167}:\\
\;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c\_m}\right)\\

\mathbf{else}:\\
\;\;\;\;x \cdot \left(\frac{y}{c\_m} \cdot \frac{9}{z}\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 5 regimes
  2. if y < -2.40000000000000002e-27

    1. Initial program 83.4%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative83.4%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-83.4%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative83.4%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*82.0%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative82.0%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-82.0%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative82.0%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*81.9%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*83.3%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative83.3%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified83.3%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 77.4%

      \[\leadsto \color{blue}{\frac{-4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c} + \left(9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}\right)}{z}} \]
    6. Taylor expanded in x around inf 59.4%

      \[\leadsto \color{blue}{9 \cdot \frac{x \cdot y}{c \cdot z}} \]
    7. Step-by-step derivation
      1. times-frac57.2%

        \[\leadsto 9 \cdot \color{blue}{\left(\frac{x}{c} \cdot \frac{y}{z}\right)} \]
    8. Simplified57.2%

      \[\leadsto \color{blue}{9 \cdot \left(\frac{x}{c} \cdot \frac{y}{z}\right)} \]
    9. Step-by-step derivation
      1. clear-num57.2%

        \[\leadsto 9 \cdot \left(\color{blue}{\frac{1}{\frac{c}{x}}} \cdot \frac{y}{z}\right) \]
      2. frac-times62.0%

        \[\leadsto 9 \cdot \color{blue}{\frac{1 \cdot y}{\frac{c}{x} \cdot z}} \]
      3. *-un-lft-identity62.0%

        \[\leadsto 9 \cdot \frac{\color{blue}{y}}{\frac{c}{x} \cdot z} \]
    10. Applied egg-rr62.0%

      \[\leadsto 9 \cdot \color{blue}{\frac{y}{\frac{c}{x} \cdot z}} \]

    if -2.40000000000000002e-27 < y < 7.2e10

    1. Initial program 81.4%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative81.4%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-81.4%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative81.4%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*84.4%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative84.4%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-84.4%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative84.4%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*84.4%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*84.6%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative84.6%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified84.6%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in t around inf 82.1%

      \[\leadsto \frac{\color{blue}{t \cdot \left(9 \cdot \frac{x \cdot y}{t} - 4 \cdot \left(a \cdot z\right)\right)} + b}{z \cdot c} \]
    6. Taylor expanded in x around 0 75.1%

      \[\leadsto \frac{t \cdot \color{blue}{\left(-4 \cdot \left(a \cdot z\right)\right)} + b}{z \cdot c} \]
    7. Step-by-step derivation
      1. *-commutative75.1%

        \[\leadsto \frac{t \cdot \left(-4 \cdot \color{blue}{\left(z \cdot a\right)}\right) + b}{z \cdot c} \]
      2. associate-*r*75.1%

        \[\leadsto \frac{t \cdot \color{blue}{\left(\left(-4 \cdot z\right) \cdot a\right)} + b}{z \cdot c} \]
      3. *-commutative75.1%

        \[\leadsto \frac{t \cdot \left(\color{blue}{\left(z \cdot -4\right)} \cdot a\right) + b}{z \cdot c} \]
    8. Simplified75.1%

      \[\leadsto \frac{t \cdot \color{blue}{\left(\left(z \cdot -4\right) \cdot a\right)} + b}{z \cdot c} \]

    if 7.2e10 < y < 4.79999999999999966e113

    1. Initial program 80.8%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative80.8%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-80.8%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative80.8%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*80.8%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative80.8%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-80.8%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative80.8%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*80.8%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*80.7%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative80.7%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified80.7%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 61.9%

      \[\leadsto \frac{\color{blue}{9 \cdot \left(x \cdot y\right)} + b}{z \cdot c} \]
    6. Step-by-step derivation
      1. associate-*r*61.9%

        \[\leadsto \frac{\color{blue}{\left(9 \cdot x\right) \cdot y} + b}{z \cdot c} \]
      2. *-commutative61.9%

        \[\leadsto \frac{\color{blue}{\left(x \cdot 9\right)} \cdot y + b}{z \cdot c} \]
      3. associate-*r*61.9%

        \[\leadsto \frac{\color{blue}{x \cdot \left(9 \cdot y\right)} + b}{z \cdot c} \]
    7. Simplified61.9%

      \[\leadsto \frac{\color{blue}{x \cdot \left(9 \cdot y\right)} + b}{z \cdot c} \]

    if 4.79999999999999966e113 < y < 2.89999999999999975e167

    1. Initial program 71.8%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative71.8%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-71.8%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative71.8%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*71.8%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative71.8%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-71.8%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative71.8%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*71.8%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*65.0%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative65.0%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified65.0%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 59.5%

      \[\leadsto \color{blue}{\frac{-4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c} + \left(9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}\right)}{z}} \]
    6. Taylor expanded in a around inf 57.6%

      \[\leadsto \color{blue}{-4 \cdot \frac{a \cdot t}{c}} \]
    7. Step-by-step derivation
      1. *-commutative57.6%

        \[\leadsto -4 \cdot \frac{\color{blue}{t \cdot a}}{c} \]
      2. associate-/l*57.8%

        \[\leadsto -4 \cdot \color{blue}{\left(t \cdot \frac{a}{c}\right)} \]
    8. Simplified57.8%

      \[\leadsto \color{blue}{-4 \cdot \left(t \cdot \frac{a}{c}\right)} \]

    if 2.89999999999999975e167 < y

    1. Initial program 86.3%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative86.3%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-86.3%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative86.3%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*81.4%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative81.4%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-81.4%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative81.4%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*81.5%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*81.6%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative81.6%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified81.6%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Step-by-step derivation
      1. add-cube-cbrt81.4%

        \[\leadsto \frac{\left(\color{blue}{\left(\sqrt[3]{x \cdot \left(9 \cdot y\right)} \cdot \sqrt[3]{x \cdot \left(9 \cdot y\right)}\right) \cdot \sqrt[3]{x \cdot \left(9 \cdot y\right)}} - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c} \]
      2. pow381.4%

        \[\leadsto \frac{\left(\color{blue}{{\left(\sqrt[3]{x \cdot \left(9 \cdot y\right)}\right)}^{3}} - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c} \]
      3. associate-*r*81.2%

        \[\leadsto \frac{\left({\left(\sqrt[3]{\color{blue}{\left(x \cdot 9\right) \cdot y}}\right)}^{3} - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c} \]
      4. *-commutative81.2%

        \[\leadsto \frac{\left({\left(\sqrt[3]{\color{blue}{\left(9 \cdot x\right)} \cdot y}\right)}^{3} - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c} \]
      5. associate-*l*81.2%

        \[\leadsto \frac{\left({\left(\sqrt[3]{\color{blue}{9 \cdot \left(x \cdot y\right)}}\right)}^{3} - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c} \]
    6. Applied egg-rr81.2%

      \[\leadsto \frac{\left(\color{blue}{{\left(\sqrt[3]{9 \cdot \left(x \cdot y\right)}\right)}^{3}} - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c} \]
    7. Taylor expanded in x around inf 63.5%

      \[\leadsto \color{blue}{\frac{x \cdot \left(y \cdot {\left(\sqrt[3]{9}\right)}^{3}\right)}{c \cdot z}} \]
    8. Step-by-step derivation
      1. associate-/l*72.2%

        \[\leadsto \color{blue}{x \cdot \frac{y \cdot {\left(\sqrt[3]{9}\right)}^{3}}{c \cdot z}} \]
      2. rem-cube-cbrt72.2%

        \[\leadsto x \cdot \frac{y \cdot \color{blue}{9}}{c \cdot z} \]
      3. times-frac85.8%

        \[\leadsto x \cdot \color{blue}{\left(\frac{y}{c} \cdot \frac{9}{z}\right)} \]
    9. Simplified85.8%

      \[\leadsto \color{blue}{x \cdot \left(\frac{y}{c} \cdot \frac{9}{z}\right)} \]
  3. Recombined 5 regimes into one program.
  4. Final simplification70.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -2.4 \cdot 10^{-27}:\\ \;\;\;\;9 \cdot \frac{y}{z \cdot \frac{c}{x}}\\ \mathbf{elif}\;y \leq 72000000000:\\ \;\;\;\;\frac{b + t \cdot \left(a \cdot \left(z \cdot -4\right)\right)}{z \cdot c}\\ \mathbf{elif}\;y \leq 4.8 \cdot 10^{+113}:\\ \;\;\;\;\frac{b + x \cdot \left(9 \cdot y\right)}{z \cdot c}\\ \mathbf{elif}\;y \leq 2.9 \cdot 10^{+167}:\\ \;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c}\right)\\ \mathbf{else}:\\ \;\;\;\;x \cdot \left(\frac{y}{c} \cdot \frac{9}{z}\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 10: 84.7% accurate, 0.7× speedup?

\[\begin{array}{l} c\_m = \left|c\right| \\ c\_s = \mathsf{copysign}\left(1, c\right) \\ [x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\\\ [x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\ \\ c\_s \cdot \begin{array}{l} \mathbf{if}\;c\_m \leq 10^{-8}:\\ \;\;\;\;\frac{\left(y \cdot \left(x \cdot 9\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c\_m}\\ \mathbf{else}:\\ \;\;\;\;\frac{\frac{y}{c\_m} \cdot \left(x \cdot 9\right) + \frac{b + z \cdot \left(a \cdot \left(t \cdot -4\right)\right)}{c\_m}}{z}\\ \end{array} \end{array} \]
c\_m = (fabs.f64 c)
c\_s = (copysign.f64 #s(literal 1 binary64) c)
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
(FPCore (c_s x y z t a b c_m)
 :precision binary64
 (*
  c_s
  (if (<= c_m 1e-8)
    (/ (+ (- (* y (* x 9.0)) (* (* (* z 4.0) t) a)) b) (* z c_m))
    (/ (+ (* (/ y c_m) (* x 9.0)) (/ (+ b (* z (* a (* t -4.0)))) c_m)) z))))
c\_m = fabs(c);
c\_s = copysign(1.0, c);
assert(x < y && y < z && z < t && t < a && a < b && b < c_m);
assert(x < y && y < z && z < t && t < a && a < b && b < c_m);
double code(double c_s, double x, double y, double z, double t, double a, double b, double c_m) {
	double tmp;
	if (c_m <= 1e-8) {
		tmp = (((y * (x * 9.0)) - (((z * 4.0) * t) * a)) + b) / (z * c_m);
	} else {
		tmp = (((y / c_m) * (x * 9.0)) + ((b + (z * (a * (t * -4.0)))) / c_m)) / z;
	}
	return c_s * tmp;
}
c\_m = abs(c)
c\_s = copysign(1.0d0, c)
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
real(8) function code(c_s, x, y, z, t, a, b, c_m)
    real(8), intent (in) :: c_s
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c_m
    real(8) :: tmp
    if (c_m <= 1d-8) then
        tmp = (((y * (x * 9.0d0)) - (((z * 4.0d0) * t) * a)) + b) / (z * c_m)
    else
        tmp = (((y / c_m) * (x * 9.0d0)) + ((b + (z * (a * (t * (-4.0d0))))) / c_m)) / z
    end if
    code = c_s * tmp
end function
c\_m = Math.abs(c);
c\_s = Math.copySign(1.0, c);
assert x < y && y < z && z < t && t < a && a < b && b < c_m;
assert x < y && y < z && z < t && t < a && a < b && b < c_m;
public static double code(double c_s, double x, double y, double z, double t, double a, double b, double c_m) {
	double tmp;
	if (c_m <= 1e-8) {
		tmp = (((y * (x * 9.0)) - (((z * 4.0) * t) * a)) + b) / (z * c_m);
	} else {
		tmp = (((y / c_m) * (x * 9.0)) + ((b + (z * (a * (t * -4.0)))) / c_m)) / z;
	}
	return c_s * tmp;
}
c\_m = math.fabs(c)
c\_s = math.copysign(1.0, c)
[x, y, z, t, a, b, c_m] = sort([x, y, z, t, a, b, c_m])
[x, y, z, t, a, b, c_m] = sort([x, y, z, t, a, b, c_m])
def code(c_s, x, y, z, t, a, b, c_m):
	tmp = 0
	if c_m <= 1e-8:
		tmp = (((y * (x * 9.0)) - (((z * 4.0) * t) * a)) + b) / (z * c_m)
	else:
		tmp = (((y / c_m) * (x * 9.0)) + ((b + (z * (a * (t * -4.0)))) / c_m)) / z
	return c_s * tmp
c\_m = abs(c)
c\_s = copysign(1.0, c)
x, y, z, t, a, b, c_m = sort([x, y, z, t, a, b, c_m])
x, y, z, t, a, b, c_m = sort([x, y, z, t, a, b, c_m])
function code(c_s, x, y, z, t, a, b, c_m)
	tmp = 0.0
	if (c_m <= 1e-8)
		tmp = Float64(Float64(Float64(Float64(y * Float64(x * 9.0)) - Float64(Float64(Float64(z * 4.0) * t) * a)) + b) / Float64(z * c_m));
	else
		tmp = Float64(Float64(Float64(Float64(y / c_m) * Float64(x * 9.0)) + Float64(Float64(b + Float64(z * Float64(a * Float64(t * -4.0)))) / c_m)) / z);
	end
	return Float64(c_s * tmp)
end
c\_m = abs(c);
c\_s = sign(c) * abs(1.0);
x, y, z, t, a, b, c_m = num2cell(sort([x, y, z, t, a, b, c_m])){:}
x, y, z, t, a, b, c_m = num2cell(sort([x, y, z, t, a, b, c_m])){:}
function tmp_2 = code(c_s, x, y, z, t, a, b, c_m)
	tmp = 0.0;
	if (c_m <= 1e-8)
		tmp = (((y * (x * 9.0)) - (((z * 4.0) * t) * a)) + b) / (z * c_m);
	else
		tmp = (((y / c_m) * (x * 9.0)) + ((b + (z * (a * (t * -4.0)))) / c_m)) / z;
	end
	tmp_2 = c_s * tmp;
end
c\_m = N[Abs[c], $MachinePrecision]
c\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[c]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
code[c$95$s_, x_, y_, z_, t_, a_, b_, c$95$m_] := N[(c$95$s * If[LessEqual[c$95$m, 1e-8], N[(N[(N[(N[(y * N[(x * 9.0), $MachinePrecision]), $MachinePrecision] - N[(N[(N[(z * 4.0), $MachinePrecision] * t), $MachinePrecision] * a), $MachinePrecision]), $MachinePrecision] + b), $MachinePrecision] / N[(z * c$95$m), $MachinePrecision]), $MachinePrecision], N[(N[(N[(N[(y / c$95$m), $MachinePrecision] * N[(x * 9.0), $MachinePrecision]), $MachinePrecision] + N[(N[(b + N[(z * N[(a * N[(t * -4.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / c$95$m), $MachinePrecision]), $MachinePrecision] / z), $MachinePrecision]]), $MachinePrecision]
\begin{array}{l}
c\_m = \left|c\right|
\\
c\_s = \mathsf{copysign}\left(1, c\right)
\\
[x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\\\
[x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\
\\
c\_s \cdot \begin{array}{l}
\mathbf{if}\;c\_m \leq 10^{-8}:\\
\;\;\;\;\frac{\left(y \cdot \left(x \cdot 9\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c\_m}\\

\mathbf{else}:\\
\;\;\;\;\frac{\frac{y}{c\_m} \cdot \left(x \cdot 9\right) + \frac{b + z \cdot \left(a \cdot \left(t \cdot -4\right)\right)}{c\_m}}{z}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if c < 1e-8

    1. Initial program 83.8%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Add Preprocessing

    if 1e-8 < c

    1. Initial program 75.2%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative75.2%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-75.2%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative75.2%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*76.6%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative76.6%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-76.6%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative76.6%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*76.6%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*73.6%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative73.6%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified73.6%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 82.0%

      \[\leadsto \color{blue}{\frac{-4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c} + \left(9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}\right)}{z}} \]
    6. Step-by-step derivation
      1. div-inv81.9%

        \[\leadsto \color{blue}{\left(-4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c} + \left(9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}\right)\right) \cdot \frac{1}{z}} \]
      2. fma-define81.9%

        \[\leadsto \color{blue}{\mathsf{fma}\left(-4, \frac{a \cdot \left(t \cdot z\right)}{c}, 9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}\right)} \cdot \frac{1}{z} \]
      3. associate-/l*85.1%

        \[\leadsto \mathsf{fma}\left(-4, \color{blue}{a \cdot \frac{t \cdot z}{c}}, 9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}\right) \cdot \frac{1}{z} \]
      4. fma-define85.1%

        \[\leadsto \mathsf{fma}\left(-4, a \cdot \frac{t \cdot z}{c}, \color{blue}{\mathsf{fma}\left(9, \frac{x \cdot y}{c}, \frac{b}{c}\right)}\right) \cdot \frac{1}{z} \]
      5. associate-/l*86.7%

        \[\leadsto \mathsf{fma}\left(-4, a \cdot \frac{t \cdot z}{c}, \mathsf{fma}\left(9, \color{blue}{x \cdot \frac{y}{c}}, \frac{b}{c}\right)\right) \cdot \frac{1}{z} \]
    7. Applied egg-rr86.7%

      \[\leadsto \color{blue}{\mathsf{fma}\left(-4, a \cdot \frac{t \cdot z}{c}, \mathsf{fma}\left(9, x \cdot \frac{y}{c}, \frac{b}{c}\right)\right) \cdot \frac{1}{z}} \]
    8. Simplified81.9%

      \[\leadsto \color{blue}{\frac{\frac{b + z \cdot \left(a \cdot \left(-4 \cdot t\right)\right)}{c} + \frac{y}{c} \cdot \left(9 \cdot x\right)}{z}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification83.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;c \leq 10^{-8}:\\ \;\;\;\;\frac{\left(y \cdot \left(x \cdot 9\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c}\\ \mathbf{else}:\\ \;\;\;\;\frac{\frac{y}{c} \cdot \left(x \cdot 9\right) + \frac{b + z \cdot \left(a \cdot \left(t \cdot -4\right)\right)}{c}}{z}\\ \end{array} \]
  5. Add Preprocessing

Alternative 11: 68.5% accurate, 0.9× speedup?

\[\begin{array}{l} c\_m = \left|c\right| \\ c\_s = \mathsf{copysign}\left(1, c\right) \\ [x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\\\ [x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\ \\ c\_s \cdot \begin{array}{l} \mathbf{if}\;z \leq -3.7 \cdot 10^{+93}:\\ \;\;\;\;-4 \cdot \frac{t \cdot a}{c\_m}\\ \mathbf{elif}\;z \leq 2 \cdot 10^{+63}:\\ \;\;\;\;\frac{b + x \cdot \left(9 \cdot y\right)}{z \cdot c\_m}\\ \mathbf{else}:\\ \;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c\_m}\right)\\ \end{array} \end{array} \]
c\_m = (fabs.f64 c)
c\_s = (copysign.f64 #s(literal 1 binary64) c)
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
(FPCore (c_s x y z t a b c_m)
 :precision binary64
 (*
  c_s
  (if (<= z -3.7e+93)
    (* -4.0 (/ (* t a) c_m))
    (if (<= z 2e+63)
      (/ (+ b (* x (* 9.0 y))) (* z c_m))
      (* -4.0 (* t (/ a c_m)))))))
c\_m = fabs(c);
c\_s = copysign(1.0, c);
assert(x < y && y < z && z < t && t < a && a < b && b < c_m);
assert(x < y && y < z && z < t && t < a && a < b && b < c_m);
double code(double c_s, double x, double y, double z, double t, double a, double b, double c_m) {
	double tmp;
	if (z <= -3.7e+93) {
		tmp = -4.0 * ((t * a) / c_m);
	} else if (z <= 2e+63) {
		tmp = (b + (x * (9.0 * y))) / (z * c_m);
	} else {
		tmp = -4.0 * (t * (a / c_m));
	}
	return c_s * tmp;
}
c\_m = abs(c)
c\_s = copysign(1.0d0, c)
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
real(8) function code(c_s, x, y, z, t, a, b, c_m)
    real(8), intent (in) :: c_s
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c_m
    real(8) :: tmp
    if (z <= (-3.7d+93)) then
        tmp = (-4.0d0) * ((t * a) / c_m)
    else if (z <= 2d+63) then
        tmp = (b + (x * (9.0d0 * y))) / (z * c_m)
    else
        tmp = (-4.0d0) * (t * (a / c_m))
    end if
    code = c_s * tmp
end function
c\_m = Math.abs(c);
c\_s = Math.copySign(1.0, c);
assert x < y && y < z && z < t && t < a && a < b && b < c_m;
assert x < y && y < z && z < t && t < a && a < b && b < c_m;
public static double code(double c_s, double x, double y, double z, double t, double a, double b, double c_m) {
	double tmp;
	if (z <= -3.7e+93) {
		tmp = -4.0 * ((t * a) / c_m);
	} else if (z <= 2e+63) {
		tmp = (b + (x * (9.0 * y))) / (z * c_m);
	} else {
		tmp = -4.0 * (t * (a / c_m));
	}
	return c_s * tmp;
}
c\_m = math.fabs(c)
c\_s = math.copysign(1.0, c)
[x, y, z, t, a, b, c_m] = sort([x, y, z, t, a, b, c_m])
[x, y, z, t, a, b, c_m] = sort([x, y, z, t, a, b, c_m])
def code(c_s, x, y, z, t, a, b, c_m):
	tmp = 0
	if z <= -3.7e+93:
		tmp = -4.0 * ((t * a) / c_m)
	elif z <= 2e+63:
		tmp = (b + (x * (9.0 * y))) / (z * c_m)
	else:
		tmp = -4.0 * (t * (a / c_m))
	return c_s * tmp
c\_m = abs(c)
c\_s = copysign(1.0, c)
x, y, z, t, a, b, c_m = sort([x, y, z, t, a, b, c_m])
x, y, z, t, a, b, c_m = sort([x, y, z, t, a, b, c_m])
function code(c_s, x, y, z, t, a, b, c_m)
	tmp = 0.0
	if (z <= -3.7e+93)
		tmp = Float64(-4.0 * Float64(Float64(t * a) / c_m));
	elseif (z <= 2e+63)
		tmp = Float64(Float64(b + Float64(x * Float64(9.0 * y))) / Float64(z * c_m));
	else
		tmp = Float64(-4.0 * Float64(t * Float64(a / c_m)));
	end
	return Float64(c_s * tmp)
end
c\_m = abs(c);
c\_s = sign(c) * abs(1.0);
x, y, z, t, a, b, c_m = num2cell(sort([x, y, z, t, a, b, c_m])){:}
x, y, z, t, a, b, c_m = num2cell(sort([x, y, z, t, a, b, c_m])){:}
function tmp_2 = code(c_s, x, y, z, t, a, b, c_m)
	tmp = 0.0;
	if (z <= -3.7e+93)
		tmp = -4.0 * ((t * a) / c_m);
	elseif (z <= 2e+63)
		tmp = (b + (x * (9.0 * y))) / (z * c_m);
	else
		tmp = -4.0 * (t * (a / c_m));
	end
	tmp_2 = c_s * tmp;
end
c\_m = N[Abs[c], $MachinePrecision]
c\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[c]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
code[c$95$s_, x_, y_, z_, t_, a_, b_, c$95$m_] := N[(c$95$s * If[LessEqual[z, -3.7e+93], N[(-4.0 * N[(N[(t * a), $MachinePrecision] / c$95$m), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, 2e+63], N[(N[(b + N[(x * N[(9.0 * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(z * c$95$m), $MachinePrecision]), $MachinePrecision], N[(-4.0 * N[(t * N[(a / c$95$m), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]), $MachinePrecision]
\begin{array}{l}
c\_m = \left|c\right|
\\
c\_s = \mathsf{copysign}\left(1, c\right)
\\
[x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\\\
[x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\
\\
c\_s \cdot \begin{array}{l}
\mathbf{if}\;z \leq -3.7 \cdot 10^{+93}:\\
\;\;\;\;-4 \cdot \frac{t \cdot a}{c\_m}\\

\mathbf{elif}\;z \leq 2 \cdot 10^{+63}:\\
\;\;\;\;\frac{b + x \cdot \left(9 \cdot y\right)}{z \cdot c\_m}\\

\mathbf{else}:\\
\;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c\_m}\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if z < -3.69999999999999987e93

    1. Initial program 66.7%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative66.7%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-66.7%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative66.7%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*71.6%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative71.6%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-71.6%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative71.6%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*71.6%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*77.3%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative77.3%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified77.3%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around inf 66.1%

      \[\leadsto \color{blue}{-4 \cdot \frac{a \cdot t}{c}} \]

    if -3.69999999999999987e93 < z < 2.00000000000000012e63

    1. Initial program 95.4%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative95.4%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-95.4%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative95.4%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*94.8%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative94.8%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-94.8%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative94.8%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*94.8%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*91.7%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative91.7%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified91.7%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 81.1%

      \[\leadsto \frac{\color{blue}{9 \cdot \left(x \cdot y\right)} + b}{z \cdot c} \]
    6. Step-by-step derivation
      1. associate-*r*81.1%

        \[\leadsto \frac{\color{blue}{\left(9 \cdot x\right) \cdot y} + b}{z \cdot c} \]
      2. *-commutative81.1%

        \[\leadsto \frac{\color{blue}{\left(x \cdot 9\right)} \cdot y + b}{z \cdot c} \]
      3. associate-*r*81.1%

        \[\leadsto \frac{\color{blue}{x \cdot \left(9 \cdot y\right)} + b}{z \cdot c} \]
    7. Simplified81.1%

      \[\leadsto \frac{\color{blue}{x \cdot \left(9 \cdot y\right)} + b}{z \cdot c} \]

    if 2.00000000000000012e63 < z

    1. Initial program 53.1%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative53.1%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-53.1%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative53.1%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*53.0%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative53.0%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-53.0%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative53.0%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*53.1%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*57.4%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative57.4%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified57.4%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 51.1%

      \[\leadsto \color{blue}{\frac{-4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c} + \left(9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}\right)}{z}} \]
    6. Taylor expanded in a around inf 51.8%

      \[\leadsto \color{blue}{-4 \cdot \frac{a \cdot t}{c}} \]
    7. Step-by-step derivation
      1. *-commutative51.8%

        \[\leadsto -4 \cdot \frac{\color{blue}{t \cdot a}}{c} \]
      2. associate-/l*62.5%

        \[\leadsto -4 \cdot \color{blue}{\left(t \cdot \frac{a}{c}\right)} \]
    8. Simplified62.5%

      \[\leadsto \color{blue}{-4 \cdot \left(t \cdot \frac{a}{c}\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification74.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -3.7 \cdot 10^{+93}:\\ \;\;\;\;-4 \cdot \frac{t \cdot a}{c}\\ \mathbf{elif}\;z \leq 2 \cdot 10^{+63}:\\ \;\;\;\;\frac{b + x \cdot \left(9 \cdot y\right)}{z \cdot c}\\ \mathbf{else}:\\ \;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c}\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 12: 50.3% accurate, 1.1× speedup?

\[\begin{array}{l} c\_m = \left|c\right| \\ c\_s = \mathsf{copysign}\left(1, c\right) \\ [x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\\\ [x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\ \\ c\_s \cdot \begin{array}{l} \mathbf{if}\;b \leq -8.5 \cdot 10^{+40} \lor \neg \left(b \leq 2.45 \cdot 10^{+33}\right):\\ \;\;\;\;\frac{\frac{b}{c\_m}}{z}\\ \mathbf{else}:\\ \;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c\_m}\right)\\ \end{array} \end{array} \]
c\_m = (fabs.f64 c)
c\_s = (copysign.f64 #s(literal 1 binary64) c)
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
(FPCore (c_s x y z t a b c_m)
 :precision binary64
 (*
  c_s
  (if (or (<= b -8.5e+40) (not (<= b 2.45e+33)))
    (/ (/ b c_m) z)
    (* -4.0 (* t (/ a c_m))))))
c\_m = fabs(c);
c\_s = copysign(1.0, c);
assert(x < y && y < z && z < t && t < a && a < b && b < c_m);
assert(x < y && y < z && z < t && t < a && a < b && b < c_m);
double code(double c_s, double x, double y, double z, double t, double a, double b, double c_m) {
	double tmp;
	if ((b <= -8.5e+40) || !(b <= 2.45e+33)) {
		tmp = (b / c_m) / z;
	} else {
		tmp = -4.0 * (t * (a / c_m));
	}
	return c_s * tmp;
}
c\_m = abs(c)
c\_s = copysign(1.0d0, c)
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
real(8) function code(c_s, x, y, z, t, a, b, c_m)
    real(8), intent (in) :: c_s
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c_m
    real(8) :: tmp
    if ((b <= (-8.5d+40)) .or. (.not. (b <= 2.45d+33))) then
        tmp = (b / c_m) / z
    else
        tmp = (-4.0d0) * (t * (a / c_m))
    end if
    code = c_s * tmp
end function
c\_m = Math.abs(c);
c\_s = Math.copySign(1.0, c);
assert x < y && y < z && z < t && t < a && a < b && b < c_m;
assert x < y && y < z && z < t && t < a && a < b && b < c_m;
public static double code(double c_s, double x, double y, double z, double t, double a, double b, double c_m) {
	double tmp;
	if ((b <= -8.5e+40) || !(b <= 2.45e+33)) {
		tmp = (b / c_m) / z;
	} else {
		tmp = -4.0 * (t * (a / c_m));
	}
	return c_s * tmp;
}
c\_m = math.fabs(c)
c\_s = math.copysign(1.0, c)
[x, y, z, t, a, b, c_m] = sort([x, y, z, t, a, b, c_m])
[x, y, z, t, a, b, c_m] = sort([x, y, z, t, a, b, c_m])
def code(c_s, x, y, z, t, a, b, c_m):
	tmp = 0
	if (b <= -8.5e+40) or not (b <= 2.45e+33):
		tmp = (b / c_m) / z
	else:
		tmp = -4.0 * (t * (a / c_m))
	return c_s * tmp
c\_m = abs(c)
c\_s = copysign(1.0, c)
x, y, z, t, a, b, c_m = sort([x, y, z, t, a, b, c_m])
x, y, z, t, a, b, c_m = sort([x, y, z, t, a, b, c_m])
function code(c_s, x, y, z, t, a, b, c_m)
	tmp = 0.0
	if ((b <= -8.5e+40) || !(b <= 2.45e+33))
		tmp = Float64(Float64(b / c_m) / z);
	else
		tmp = Float64(-4.0 * Float64(t * Float64(a / c_m)));
	end
	return Float64(c_s * tmp)
end
c\_m = abs(c);
c\_s = sign(c) * abs(1.0);
x, y, z, t, a, b, c_m = num2cell(sort([x, y, z, t, a, b, c_m])){:}
x, y, z, t, a, b, c_m = num2cell(sort([x, y, z, t, a, b, c_m])){:}
function tmp_2 = code(c_s, x, y, z, t, a, b, c_m)
	tmp = 0.0;
	if ((b <= -8.5e+40) || ~((b <= 2.45e+33)))
		tmp = (b / c_m) / z;
	else
		tmp = -4.0 * (t * (a / c_m));
	end
	tmp_2 = c_s * tmp;
end
c\_m = N[Abs[c], $MachinePrecision]
c\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[c]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
code[c$95$s_, x_, y_, z_, t_, a_, b_, c$95$m_] := N[(c$95$s * If[Or[LessEqual[b, -8.5e+40], N[Not[LessEqual[b, 2.45e+33]], $MachinePrecision]], N[(N[(b / c$95$m), $MachinePrecision] / z), $MachinePrecision], N[(-4.0 * N[(t * N[(a / c$95$m), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]), $MachinePrecision]
\begin{array}{l}
c\_m = \left|c\right|
\\
c\_s = \mathsf{copysign}\left(1, c\right)
\\
[x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\\\
[x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\
\\
c\_s \cdot \begin{array}{l}
\mathbf{if}\;b \leq -8.5 \cdot 10^{+40} \lor \neg \left(b \leq 2.45 \cdot 10^{+33}\right):\\
\;\;\;\;\frac{\frac{b}{c\_m}}{z}\\

\mathbf{else}:\\
\;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c\_m}\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if b < -8.49999999999999996e40 or 2.45000000000000007e33 < b

    1. Initial program 83.5%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative83.5%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-83.5%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative83.5%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*79.8%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative79.8%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-79.8%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative79.8%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*79.8%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*80.8%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative80.8%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified80.8%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 78.9%

      \[\leadsto \color{blue}{\frac{-4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c} + \left(9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}\right)}{z}} \]
    6. Taylor expanded in b around inf 57.5%

      \[\leadsto \color{blue}{\frac{b}{c \cdot z}} \]
    7. Step-by-step derivation
      1. associate-/r*59.5%

        \[\leadsto \color{blue}{\frac{\frac{b}{c}}{z}} \]
    8. Simplified59.5%

      \[\leadsto \color{blue}{\frac{\frac{b}{c}}{z}} \]

    if -8.49999999999999996e40 < b < 2.45000000000000007e33

    1. Initial program 80.6%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative80.6%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-80.6%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative80.6%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*84.4%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative84.4%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-84.4%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative84.4%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*84.5%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*83.9%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative83.9%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified83.9%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 80.8%

      \[\leadsto \color{blue}{\frac{-4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c} + \left(9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}\right)}{z}} \]
    6. Taylor expanded in a around inf 52.1%

      \[\leadsto \color{blue}{-4 \cdot \frac{a \cdot t}{c}} \]
    7. Step-by-step derivation
      1. *-commutative52.1%

        \[\leadsto -4 \cdot \frac{\color{blue}{t \cdot a}}{c} \]
      2. associate-/l*52.9%

        \[\leadsto -4 \cdot \color{blue}{\left(t \cdot \frac{a}{c}\right)} \]
    8. Simplified52.9%

      \[\leadsto \color{blue}{-4 \cdot \left(t \cdot \frac{a}{c}\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification55.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -8.5 \cdot 10^{+40} \lor \neg \left(b \leq 2.45 \cdot 10^{+33}\right):\\ \;\;\;\;\frac{\frac{b}{c}}{z}\\ \mathbf{else}:\\ \;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c}\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 13: 49.9% accurate, 1.1× speedup?

\[\begin{array}{l} c\_m = \left|c\right| \\ c\_s = \mathsf{copysign}\left(1, c\right) \\ [x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\\\ [x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\ \\ c\_s \cdot \begin{array}{l} \mathbf{if}\;b \leq -7.6 \cdot 10^{+40}:\\ \;\;\;\;\frac{\frac{b}{c\_m}}{z}\\ \mathbf{elif}\;b \leq 2.6 \cdot 10^{+37}:\\ \;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c\_m}\right)\\ \mathbf{else}:\\ \;\;\;\;b \cdot \frac{1}{z \cdot c\_m}\\ \end{array} \end{array} \]
c\_m = (fabs.f64 c)
c\_s = (copysign.f64 #s(literal 1 binary64) c)
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
(FPCore (c_s x y z t a b c_m)
 :precision binary64
 (*
  c_s
  (if (<= b -7.6e+40)
    (/ (/ b c_m) z)
    (if (<= b 2.6e+37) (* -4.0 (* t (/ a c_m))) (* b (/ 1.0 (* z c_m)))))))
c\_m = fabs(c);
c\_s = copysign(1.0, c);
assert(x < y && y < z && z < t && t < a && a < b && b < c_m);
assert(x < y && y < z && z < t && t < a && a < b && b < c_m);
double code(double c_s, double x, double y, double z, double t, double a, double b, double c_m) {
	double tmp;
	if (b <= -7.6e+40) {
		tmp = (b / c_m) / z;
	} else if (b <= 2.6e+37) {
		tmp = -4.0 * (t * (a / c_m));
	} else {
		tmp = b * (1.0 / (z * c_m));
	}
	return c_s * tmp;
}
c\_m = abs(c)
c\_s = copysign(1.0d0, c)
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
real(8) function code(c_s, x, y, z, t, a, b, c_m)
    real(8), intent (in) :: c_s
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c_m
    real(8) :: tmp
    if (b <= (-7.6d+40)) then
        tmp = (b / c_m) / z
    else if (b <= 2.6d+37) then
        tmp = (-4.0d0) * (t * (a / c_m))
    else
        tmp = b * (1.0d0 / (z * c_m))
    end if
    code = c_s * tmp
end function
c\_m = Math.abs(c);
c\_s = Math.copySign(1.0, c);
assert x < y && y < z && z < t && t < a && a < b && b < c_m;
assert x < y && y < z && z < t && t < a && a < b && b < c_m;
public static double code(double c_s, double x, double y, double z, double t, double a, double b, double c_m) {
	double tmp;
	if (b <= -7.6e+40) {
		tmp = (b / c_m) / z;
	} else if (b <= 2.6e+37) {
		tmp = -4.0 * (t * (a / c_m));
	} else {
		tmp = b * (1.0 / (z * c_m));
	}
	return c_s * tmp;
}
c\_m = math.fabs(c)
c\_s = math.copysign(1.0, c)
[x, y, z, t, a, b, c_m] = sort([x, y, z, t, a, b, c_m])
[x, y, z, t, a, b, c_m] = sort([x, y, z, t, a, b, c_m])
def code(c_s, x, y, z, t, a, b, c_m):
	tmp = 0
	if b <= -7.6e+40:
		tmp = (b / c_m) / z
	elif b <= 2.6e+37:
		tmp = -4.0 * (t * (a / c_m))
	else:
		tmp = b * (1.0 / (z * c_m))
	return c_s * tmp
c\_m = abs(c)
c\_s = copysign(1.0, c)
x, y, z, t, a, b, c_m = sort([x, y, z, t, a, b, c_m])
x, y, z, t, a, b, c_m = sort([x, y, z, t, a, b, c_m])
function code(c_s, x, y, z, t, a, b, c_m)
	tmp = 0.0
	if (b <= -7.6e+40)
		tmp = Float64(Float64(b / c_m) / z);
	elseif (b <= 2.6e+37)
		tmp = Float64(-4.0 * Float64(t * Float64(a / c_m)));
	else
		tmp = Float64(b * Float64(1.0 / Float64(z * c_m)));
	end
	return Float64(c_s * tmp)
end
c\_m = abs(c);
c\_s = sign(c) * abs(1.0);
x, y, z, t, a, b, c_m = num2cell(sort([x, y, z, t, a, b, c_m])){:}
x, y, z, t, a, b, c_m = num2cell(sort([x, y, z, t, a, b, c_m])){:}
function tmp_2 = code(c_s, x, y, z, t, a, b, c_m)
	tmp = 0.0;
	if (b <= -7.6e+40)
		tmp = (b / c_m) / z;
	elseif (b <= 2.6e+37)
		tmp = -4.0 * (t * (a / c_m));
	else
		tmp = b * (1.0 / (z * c_m));
	end
	tmp_2 = c_s * tmp;
end
c\_m = N[Abs[c], $MachinePrecision]
c\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[c]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
code[c$95$s_, x_, y_, z_, t_, a_, b_, c$95$m_] := N[(c$95$s * If[LessEqual[b, -7.6e+40], N[(N[(b / c$95$m), $MachinePrecision] / z), $MachinePrecision], If[LessEqual[b, 2.6e+37], N[(-4.0 * N[(t * N[(a / c$95$m), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(b * N[(1.0 / N[(z * c$95$m), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]), $MachinePrecision]
\begin{array}{l}
c\_m = \left|c\right|
\\
c\_s = \mathsf{copysign}\left(1, c\right)
\\
[x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\\\
[x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\
\\
c\_s \cdot \begin{array}{l}
\mathbf{if}\;b \leq -7.6 \cdot 10^{+40}:\\
\;\;\;\;\frac{\frac{b}{c\_m}}{z}\\

\mathbf{elif}\;b \leq 2.6 \cdot 10^{+37}:\\
\;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c\_m}\right)\\

\mathbf{else}:\\
\;\;\;\;b \cdot \frac{1}{z \cdot c\_m}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if b < -7.60000000000000009e40

    1. Initial program 82.6%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative82.6%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-82.6%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative82.6%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*76.2%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative76.2%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-76.2%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative76.2%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*76.2%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*80.6%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative80.6%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified80.6%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 77.8%

      \[\leadsto \color{blue}{\frac{-4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c} + \left(9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}\right)}{z}} \]
    6. Taylor expanded in b around inf 56.9%

      \[\leadsto \color{blue}{\frac{b}{c \cdot z}} \]
    7. Step-by-step derivation
      1. associate-/r*61.5%

        \[\leadsto \color{blue}{\frac{\frac{b}{c}}{z}} \]
    8. Simplified61.5%

      \[\leadsto \color{blue}{\frac{\frac{b}{c}}{z}} \]

    if -7.60000000000000009e40 < b < 2.5999999999999999e37

    1. Initial program 80.9%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative80.9%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-80.9%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative80.9%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*84.6%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative84.6%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-84.6%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative84.6%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*84.7%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*84.1%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative84.1%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified84.1%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 81.0%

      \[\leadsto \color{blue}{\frac{-4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c} + \left(9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}\right)}{z}} \]
    6. Taylor expanded in a around inf 52.1%

      \[\leadsto \color{blue}{-4 \cdot \frac{a \cdot t}{c}} \]
    7. Step-by-step derivation
      1. *-commutative52.1%

        \[\leadsto -4 \cdot \frac{\color{blue}{t \cdot a}}{c} \]
      2. associate-/l*52.9%

        \[\leadsto -4 \cdot \color{blue}{\left(t \cdot \frac{a}{c}\right)} \]
    8. Simplified52.9%

      \[\leadsto \color{blue}{-4 \cdot \left(t \cdot \frac{a}{c}\right)} \]

    if 2.5999999999999999e37 < b

    1. Initial program 83.6%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. +-commutative83.6%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
      2. associate-+r-83.6%

        \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
      3. *-commutative83.6%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
      4. associate-*r*82.0%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
      5. *-commutative82.0%

        \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
      6. associate-+r-82.0%

        \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
      7. +-commutative82.0%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      8. associate-*l*82.0%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      9. associate-*l*80.3%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      10. *-commutative80.3%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified80.3%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in b around inf 58.2%

      \[\leadsto \color{blue}{\frac{b}{c \cdot z}} \]
    6. Step-by-step derivation
      1. *-commutative58.2%

        \[\leadsto \frac{b}{\color{blue}{z \cdot c}} \]
    7. Simplified58.2%

      \[\leadsto \color{blue}{\frac{b}{z \cdot c}} \]
    8. Step-by-step derivation
      1. div-inv58.2%

        \[\leadsto \color{blue}{b \cdot \frac{1}{z \cdot c}} \]
    9. Applied egg-rr58.2%

      \[\leadsto \color{blue}{b \cdot \frac{1}{z \cdot c}} \]
  3. Recombined 3 regimes into one program.
  4. Add Preprocessing

Alternative 14: 35.6% accurate, 3.8× speedup?

\[\begin{array}{l} c\_m = \left|c\right| \\ c\_s = \mathsf{copysign}\left(1, c\right) \\ [x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\\\ [x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\ \\ c\_s \cdot \frac{b}{z \cdot c\_m} \end{array} \]
c\_m = (fabs.f64 c)
c\_s = (copysign.f64 #s(literal 1 binary64) c)
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
(FPCore (c_s x y z t a b c_m) :precision binary64 (* c_s (/ b (* z c_m))))
c\_m = fabs(c);
c\_s = copysign(1.0, c);
assert(x < y && y < z && z < t && t < a && a < b && b < c_m);
assert(x < y && y < z && z < t && t < a && a < b && b < c_m);
double code(double c_s, double x, double y, double z, double t, double a, double b, double c_m) {
	return c_s * (b / (z * c_m));
}
c\_m = abs(c)
c\_s = copysign(1.0d0, c)
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
real(8) function code(c_s, x, y, z, t, a, b, c_m)
    real(8), intent (in) :: c_s
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c_m
    code = c_s * (b / (z * c_m))
end function
c\_m = Math.abs(c);
c\_s = Math.copySign(1.0, c);
assert x < y && y < z && z < t && t < a && a < b && b < c_m;
assert x < y && y < z && z < t && t < a && a < b && b < c_m;
public static double code(double c_s, double x, double y, double z, double t, double a, double b, double c_m) {
	return c_s * (b / (z * c_m));
}
c\_m = math.fabs(c)
c\_s = math.copysign(1.0, c)
[x, y, z, t, a, b, c_m] = sort([x, y, z, t, a, b, c_m])
[x, y, z, t, a, b, c_m] = sort([x, y, z, t, a, b, c_m])
def code(c_s, x, y, z, t, a, b, c_m):
	return c_s * (b / (z * c_m))
c\_m = abs(c)
c\_s = copysign(1.0, c)
x, y, z, t, a, b, c_m = sort([x, y, z, t, a, b, c_m])
x, y, z, t, a, b, c_m = sort([x, y, z, t, a, b, c_m])
function code(c_s, x, y, z, t, a, b, c_m)
	return Float64(c_s * Float64(b / Float64(z * c_m)))
end
c\_m = abs(c);
c\_s = sign(c) * abs(1.0);
x, y, z, t, a, b, c_m = num2cell(sort([x, y, z, t, a, b, c_m])){:}
x, y, z, t, a, b, c_m = num2cell(sort([x, y, z, t, a, b, c_m])){:}
function tmp = code(c_s, x, y, z, t, a, b, c_m)
	tmp = c_s * (b / (z * c_m));
end
c\_m = N[Abs[c], $MachinePrecision]
c\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[c]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, and c_m should be sorted in increasing order before calling this function.
code[c$95$s_, x_, y_, z_, t_, a_, b_, c$95$m_] := N[(c$95$s * N[(b / N[(z * c$95$m), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
c\_m = \left|c\right|
\\
c\_s = \mathsf{copysign}\left(1, c\right)
\\
[x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\\\
[x, y, z, t, a, b, c_m] = \mathsf{sort}([x, y, z, t, a, b, c_m])\\
\\
c\_s \cdot \frac{b}{z \cdot c\_m}
\end{array}
Derivation
  1. Initial program 81.8%

    \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
  2. Step-by-step derivation
    1. +-commutative81.8%

      \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right)}}{z \cdot c} \]
    2. associate-+r-81.8%

      \[\leadsto \frac{\color{blue}{\left(b + \left(x \cdot 9\right) \cdot y\right) - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a}}{z \cdot c} \]
    3. *-commutative81.8%

      \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)}}{z \cdot c} \]
    4. associate-*r*82.5%

      \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t}}{z \cdot c} \]
    5. *-commutative82.5%

      \[\leadsto \frac{\left(b + \left(x \cdot 9\right) \cdot y\right) - \color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t}{z \cdot c} \]
    6. associate-+r-82.5%

      \[\leadsto \frac{\color{blue}{b + \left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right)}}{z \cdot c} \]
    7. +-commutative82.5%

      \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
    8. associate-*l*82.5%

      \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
    9. associate-*l*82.6%

      \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
    10. *-commutative82.6%

      \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
  3. Simplified82.6%

    \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
  4. Add Preprocessing
  5. Taylor expanded in b around inf 38.9%

    \[\leadsto \color{blue}{\frac{b}{c \cdot z}} \]
  6. Step-by-step derivation
    1. *-commutative38.9%

      \[\leadsto \frac{b}{\color{blue}{z \cdot c}} \]
  7. Simplified38.9%

    \[\leadsto \color{blue}{\frac{b}{z \cdot c}} \]
  8. Add Preprocessing

Developer target: 81.2% accurate, 0.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{b}{c \cdot z}\\ t_2 := 4 \cdot \frac{a \cdot t}{c}\\ t_3 := \left(x \cdot 9\right) \cdot y\\ t_4 := \left(t\_3 - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b\\ t_5 := \frac{t\_4}{z \cdot c}\\ t_6 := \frac{\left(t\_3 - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}\\ \mathbf{if}\;t\_5 < -1.100156740804105 \cdot 10^{-171}:\\ \;\;\;\;t\_6\\ \mathbf{elif}\;t\_5 < 0:\\ \;\;\;\;\frac{\frac{t\_4}{z}}{c}\\ \mathbf{elif}\;t\_5 < 1.1708877911747488 \cdot 10^{-53}:\\ \;\;\;\;t\_6\\ \mathbf{elif}\;t\_5 < 2.876823679546137 \cdot 10^{+130}:\\ \;\;\;\;\left(\left(9 \cdot \frac{y}{c}\right) \cdot \frac{x}{z} + t\_1\right) - t\_2\\ \mathbf{elif}\;t\_5 < 1.3838515042456319 \cdot 10^{+158}:\\ \;\;\;\;t\_6\\ \mathbf{else}:\\ \;\;\;\;\left(9 \cdot \left(\frac{y}{c \cdot z} \cdot x\right) + t\_1\right) - t\_2\\ \end{array} \end{array} \]
(FPCore (x y z t a b c)
 :precision binary64
 (let* ((t_1 (/ b (* c z)))
        (t_2 (* 4.0 (/ (* a t) c)))
        (t_3 (* (* x 9.0) y))
        (t_4 (+ (- t_3 (* (* (* z 4.0) t) a)) b))
        (t_5 (/ t_4 (* z c)))
        (t_6 (/ (+ (- t_3 (* (* z 4.0) (* t a))) b) (* z c))))
   (if (< t_5 -1.100156740804105e-171)
     t_6
     (if (< t_5 0.0)
       (/ (/ t_4 z) c)
       (if (< t_5 1.1708877911747488e-53)
         t_6
         (if (< t_5 2.876823679546137e+130)
           (- (+ (* (* 9.0 (/ y c)) (/ x z)) t_1) t_2)
           (if (< t_5 1.3838515042456319e+158)
             t_6
             (- (+ (* 9.0 (* (/ y (* c z)) x)) t_1) t_2))))))))
double code(double x, double y, double z, double t, double a, double b, double c) {
	double t_1 = b / (c * z);
	double t_2 = 4.0 * ((a * t) / c);
	double t_3 = (x * 9.0) * y;
	double t_4 = (t_3 - (((z * 4.0) * t) * a)) + b;
	double t_5 = t_4 / (z * c);
	double t_6 = ((t_3 - ((z * 4.0) * (t * a))) + b) / (z * c);
	double tmp;
	if (t_5 < -1.100156740804105e-171) {
		tmp = t_6;
	} else if (t_5 < 0.0) {
		tmp = (t_4 / z) / c;
	} else if (t_5 < 1.1708877911747488e-53) {
		tmp = t_6;
	} else if (t_5 < 2.876823679546137e+130) {
		tmp = (((9.0 * (y / c)) * (x / z)) + t_1) - t_2;
	} else if (t_5 < 1.3838515042456319e+158) {
		tmp = t_6;
	} else {
		tmp = ((9.0 * ((y / (c * z)) * x)) + t_1) - t_2;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8) :: t_1
    real(8) :: t_2
    real(8) :: t_3
    real(8) :: t_4
    real(8) :: t_5
    real(8) :: t_6
    real(8) :: tmp
    t_1 = b / (c * z)
    t_2 = 4.0d0 * ((a * t) / c)
    t_3 = (x * 9.0d0) * y
    t_4 = (t_3 - (((z * 4.0d0) * t) * a)) + b
    t_5 = t_4 / (z * c)
    t_6 = ((t_3 - ((z * 4.0d0) * (t * a))) + b) / (z * c)
    if (t_5 < (-1.100156740804105d-171)) then
        tmp = t_6
    else if (t_5 < 0.0d0) then
        tmp = (t_4 / z) / c
    else if (t_5 < 1.1708877911747488d-53) then
        tmp = t_6
    else if (t_5 < 2.876823679546137d+130) then
        tmp = (((9.0d0 * (y / c)) * (x / z)) + t_1) - t_2
    else if (t_5 < 1.3838515042456319d+158) then
        tmp = t_6
    else
        tmp = ((9.0d0 * ((y / (c * z)) * x)) + t_1) - t_2
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c) {
	double t_1 = b / (c * z);
	double t_2 = 4.0 * ((a * t) / c);
	double t_3 = (x * 9.0) * y;
	double t_4 = (t_3 - (((z * 4.0) * t) * a)) + b;
	double t_5 = t_4 / (z * c);
	double t_6 = ((t_3 - ((z * 4.0) * (t * a))) + b) / (z * c);
	double tmp;
	if (t_5 < -1.100156740804105e-171) {
		tmp = t_6;
	} else if (t_5 < 0.0) {
		tmp = (t_4 / z) / c;
	} else if (t_5 < 1.1708877911747488e-53) {
		tmp = t_6;
	} else if (t_5 < 2.876823679546137e+130) {
		tmp = (((9.0 * (y / c)) * (x / z)) + t_1) - t_2;
	} else if (t_5 < 1.3838515042456319e+158) {
		tmp = t_6;
	} else {
		tmp = ((9.0 * ((y / (c * z)) * x)) + t_1) - t_2;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c):
	t_1 = b / (c * z)
	t_2 = 4.0 * ((a * t) / c)
	t_3 = (x * 9.0) * y
	t_4 = (t_3 - (((z * 4.0) * t) * a)) + b
	t_5 = t_4 / (z * c)
	t_6 = ((t_3 - ((z * 4.0) * (t * a))) + b) / (z * c)
	tmp = 0
	if t_5 < -1.100156740804105e-171:
		tmp = t_6
	elif t_5 < 0.0:
		tmp = (t_4 / z) / c
	elif t_5 < 1.1708877911747488e-53:
		tmp = t_6
	elif t_5 < 2.876823679546137e+130:
		tmp = (((9.0 * (y / c)) * (x / z)) + t_1) - t_2
	elif t_5 < 1.3838515042456319e+158:
		tmp = t_6
	else:
		tmp = ((9.0 * ((y / (c * z)) * x)) + t_1) - t_2
	return tmp
function code(x, y, z, t, a, b, c)
	t_1 = Float64(b / Float64(c * z))
	t_2 = Float64(4.0 * Float64(Float64(a * t) / c))
	t_3 = Float64(Float64(x * 9.0) * y)
	t_4 = Float64(Float64(t_3 - Float64(Float64(Float64(z * 4.0) * t) * a)) + b)
	t_5 = Float64(t_4 / Float64(z * c))
	t_6 = Float64(Float64(Float64(t_3 - Float64(Float64(z * 4.0) * Float64(t * a))) + b) / Float64(z * c))
	tmp = 0.0
	if (t_5 < -1.100156740804105e-171)
		tmp = t_6;
	elseif (t_5 < 0.0)
		tmp = Float64(Float64(t_4 / z) / c);
	elseif (t_5 < 1.1708877911747488e-53)
		tmp = t_6;
	elseif (t_5 < 2.876823679546137e+130)
		tmp = Float64(Float64(Float64(Float64(9.0 * Float64(y / c)) * Float64(x / z)) + t_1) - t_2);
	elseif (t_5 < 1.3838515042456319e+158)
		tmp = t_6;
	else
		tmp = Float64(Float64(Float64(9.0 * Float64(Float64(y / Float64(c * z)) * x)) + t_1) - t_2);
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c)
	t_1 = b / (c * z);
	t_2 = 4.0 * ((a * t) / c);
	t_3 = (x * 9.0) * y;
	t_4 = (t_3 - (((z * 4.0) * t) * a)) + b;
	t_5 = t_4 / (z * c);
	t_6 = ((t_3 - ((z * 4.0) * (t * a))) + b) / (z * c);
	tmp = 0.0;
	if (t_5 < -1.100156740804105e-171)
		tmp = t_6;
	elseif (t_5 < 0.0)
		tmp = (t_4 / z) / c;
	elseif (t_5 < 1.1708877911747488e-53)
		tmp = t_6;
	elseif (t_5 < 2.876823679546137e+130)
		tmp = (((9.0 * (y / c)) * (x / z)) + t_1) - t_2;
	elseif (t_5 < 1.3838515042456319e+158)
		tmp = t_6;
	else
		tmp = ((9.0 * ((y / (c * z)) * x)) + t_1) - t_2;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_] := Block[{t$95$1 = N[(b / N[(c * z), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(4.0 * N[(N[(a * t), $MachinePrecision] / c), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$3 = N[(N[(x * 9.0), $MachinePrecision] * y), $MachinePrecision]}, Block[{t$95$4 = N[(N[(t$95$3 - N[(N[(N[(z * 4.0), $MachinePrecision] * t), $MachinePrecision] * a), $MachinePrecision]), $MachinePrecision] + b), $MachinePrecision]}, Block[{t$95$5 = N[(t$95$4 / N[(z * c), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$6 = N[(N[(N[(t$95$3 - N[(N[(z * 4.0), $MachinePrecision] * N[(t * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + b), $MachinePrecision] / N[(z * c), $MachinePrecision]), $MachinePrecision]}, If[Less[t$95$5, -1.100156740804105e-171], t$95$6, If[Less[t$95$5, 0.0], N[(N[(t$95$4 / z), $MachinePrecision] / c), $MachinePrecision], If[Less[t$95$5, 1.1708877911747488e-53], t$95$6, If[Less[t$95$5, 2.876823679546137e+130], N[(N[(N[(N[(9.0 * N[(y / c), $MachinePrecision]), $MachinePrecision] * N[(x / z), $MachinePrecision]), $MachinePrecision] + t$95$1), $MachinePrecision] - t$95$2), $MachinePrecision], If[Less[t$95$5, 1.3838515042456319e+158], t$95$6, N[(N[(N[(9.0 * N[(N[(y / N[(c * z), $MachinePrecision]), $MachinePrecision] * x), $MachinePrecision]), $MachinePrecision] + t$95$1), $MachinePrecision] - t$95$2), $MachinePrecision]]]]]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \frac{b}{c \cdot z}\\
t_2 := 4 \cdot \frac{a \cdot t}{c}\\
t_3 := \left(x \cdot 9\right) \cdot y\\
t_4 := \left(t\_3 - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b\\
t_5 := \frac{t\_4}{z \cdot c}\\
t_6 := \frac{\left(t\_3 - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}\\
\mathbf{if}\;t\_5 < -1.100156740804105 \cdot 10^{-171}:\\
\;\;\;\;t\_6\\

\mathbf{elif}\;t\_5 < 0:\\
\;\;\;\;\frac{\frac{t\_4}{z}}{c}\\

\mathbf{elif}\;t\_5 < 1.1708877911747488 \cdot 10^{-53}:\\
\;\;\;\;t\_6\\

\mathbf{elif}\;t\_5 < 2.876823679546137 \cdot 10^{+130}:\\
\;\;\;\;\left(\left(9 \cdot \frac{y}{c}\right) \cdot \frac{x}{z} + t\_1\right) - t\_2\\

\mathbf{elif}\;t\_5 < 1.3838515042456319 \cdot 10^{+158}:\\
\;\;\;\;t\_6\\

\mathbf{else}:\\
\;\;\;\;\left(9 \cdot \left(\frac{y}{c \cdot z} \cdot x\right) + t\_1\right) - t\_2\\


\end{array}
\end{array}

Reproduce

?
herbie shell --seed 2024103 
(FPCore (x y z t a b c)
  :name "Diagrams.Solve.Polynomial:cubForm  from diagrams-solve-0.1, J"
  :precision binary64

  :alt
  (if (< (/ (+ (- (* (* x 9.0) y) (* (* (* z 4.0) t) a)) b) (* z c)) -1.100156740804105e-171) (/ (+ (- (* (* x 9.0) y) (* (* z 4.0) (* t a))) b) (* z c)) (if (< (/ (+ (- (* (* x 9.0) y) (* (* (* z 4.0) t) a)) b) (* z c)) 0.0) (/ (/ (+ (- (* (* x 9.0) y) (* (* (* z 4.0) t) a)) b) z) c) (if (< (/ (+ (- (* (* x 9.0) y) (* (* (* z 4.0) t) a)) b) (* z c)) 1.1708877911747488e-53) (/ (+ (- (* (* x 9.0) y) (* (* z 4.0) (* t a))) b) (* z c)) (if (< (/ (+ (- (* (* x 9.0) y) (* (* (* z 4.0) t) a)) b) (* z c)) 2.876823679546137e+130) (- (+ (* (* 9.0 (/ y c)) (/ x z)) (/ b (* c z))) (* 4.0 (/ (* a t) c))) (if (< (/ (+ (- (* (* x 9.0) y) (* (* (* z 4.0) t) a)) b) (* z c)) 1.3838515042456319e+158) (/ (+ (- (* (* x 9.0) y) (* (* z 4.0) (* t a))) b) (* z c)) (- (+ (* 9.0 (* (/ y (* c z)) x)) (/ b (* c z))) (* 4.0 (/ (* a t) c))))))))

  (/ (+ (- (* (* x 9.0) y) (* (* (* z 4.0) t) a)) b) (* z c)))