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

Percentage Accurate: 79.4% → 86.4%
Time: 16.2s
Alternatives: 12
Speedup: 0.8×

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 12 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: 79.4% 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: 86.4% accurate, 0.5× speedup?

\[\begin{array}{l} [x, y, z, t, a, b, c] = \mathsf{sort}([x, y, z, t, a, b, c])\\ \\ \begin{array}{l} t_1 := c \cdot \left(z \cdot t\right)\\ \mathbf{if}\;z \leq -1.8 \cdot 10^{+18}:\\ \;\;\;\;\frac{x \cdot \left(\left(9 \cdot \frac{y}{z} + \frac{b}{z \cdot x}\right) - 4 \cdot \frac{a \cdot t}{x}\right)}{c}\\ \mathbf{elif}\;z \leq 1.8 \cdot 10^{+95}:\\ \;\;\;\;\frac{\left(t \cdot \left(z \cdot a\right)\right) \cdot \frac{-4}{c} + \frac{b + 9 \cdot \left(x \cdot y\right)}{c}}{z}\\ \mathbf{else}:\\ \;\;\;\;t \cdot \left(-4 \cdot \frac{a}{c} + \left(9 \cdot \frac{x \cdot y}{t\_1} + \frac{b}{t\_1}\right)\right)\\ \end{array} \end{array} \]
NOTE: x, y, z, t, a, b, and c should be sorted in increasing order before calling this function.
(FPCore (x y z t a b c)
 :precision binary64
 (let* ((t_1 (* c (* z t))))
   (if (<= z -1.8e+18)
     (/ (* x (- (+ (* 9.0 (/ y z)) (/ b (* z x))) (* 4.0 (/ (* a t) x)))) c)
     (if (<= z 1.8e+95)
       (/ (+ (* (* t (* z a)) (/ -4.0 c)) (/ (+ b (* 9.0 (* x y))) c)) z)
       (* t (+ (* -4.0 (/ a c)) (+ (* 9.0 (/ (* x y) t_1)) (/ b t_1))))))))
assert(x < y && y < z && z < t && t < a && a < b && b < c);
double code(double x, double y, double z, double t, double a, double b, double c) {
	double t_1 = c * (z * t);
	double tmp;
	if (z <= -1.8e+18) {
		tmp = (x * (((9.0 * (y / z)) + (b / (z * x))) - (4.0 * ((a * t) / x)))) / c;
	} else if (z <= 1.8e+95) {
		tmp = (((t * (z * a)) * (-4.0 / c)) + ((b + (9.0 * (x * y))) / c)) / z;
	} else {
		tmp = t * ((-4.0 * (a / c)) + ((9.0 * ((x * y) / t_1)) + (b / t_1)));
	}
	return tmp;
}
NOTE: x, y, z, t, a, b, and c should be sorted in increasing order before calling this function.
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) :: tmp
    t_1 = c * (z * t)
    if (z <= (-1.8d+18)) then
        tmp = (x * (((9.0d0 * (y / z)) + (b / (z * x))) - (4.0d0 * ((a * t) / x)))) / c
    else if (z <= 1.8d+95) then
        tmp = (((t * (z * a)) * ((-4.0d0) / c)) + ((b + (9.0d0 * (x * y))) / c)) / z
    else
        tmp = t * (((-4.0d0) * (a / c)) + ((9.0d0 * ((x * y) / t_1)) + (b / t_1)))
    end if
    code = tmp
end function
assert x < y && y < z && z < t && t < a && a < b && b < c;
public static double code(double x, double y, double z, double t, double a, double b, double c) {
	double t_1 = c * (z * t);
	double tmp;
	if (z <= -1.8e+18) {
		tmp = (x * (((9.0 * (y / z)) + (b / (z * x))) - (4.0 * ((a * t) / x)))) / c;
	} else if (z <= 1.8e+95) {
		tmp = (((t * (z * a)) * (-4.0 / c)) + ((b + (9.0 * (x * y))) / c)) / z;
	} else {
		tmp = t * ((-4.0 * (a / c)) + ((9.0 * ((x * y) / t_1)) + (b / t_1)));
	}
	return tmp;
}
[x, y, z, t, a, b, c] = sort([x, y, z, t, a, b, c])
def code(x, y, z, t, a, b, c):
	t_1 = c * (z * t)
	tmp = 0
	if z <= -1.8e+18:
		tmp = (x * (((9.0 * (y / z)) + (b / (z * x))) - (4.0 * ((a * t) / x)))) / c
	elif z <= 1.8e+95:
		tmp = (((t * (z * a)) * (-4.0 / c)) + ((b + (9.0 * (x * y))) / c)) / z
	else:
		tmp = t * ((-4.0 * (a / c)) + ((9.0 * ((x * y) / t_1)) + (b / t_1)))
	return tmp
x, y, z, t, a, b, c = sort([x, y, z, t, a, b, c])
function code(x, y, z, t, a, b, c)
	t_1 = Float64(c * Float64(z * t))
	tmp = 0.0
	if (z <= -1.8e+18)
		tmp = Float64(Float64(x * Float64(Float64(Float64(9.0 * Float64(y / z)) + Float64(b / Float64(z * x))) - Float64(4.0 * Float64(Float64(a * t) / x)))) / c);
	elseif (z <= 1.8e+95)
		tmp = Float64(Float64(Float64(Float64(t * Float64(z * a)) * Float64(-4.0 / c)) + Float64(Float64(b + Float64(9.0 * Float64(x * y))) / c)) / z);
	else
		tmp = Float64(t * Float64(Float64(-4.0 * Float64(a / c)) + Float64(Float64(9.0 * Float64(Float64(x * y) / t_1)) + Float64(b / t_1))));
	end
	return tmp
end
x, y, z, t, a, b, c = num2cell(sort([x, y, z, t, a, b, c])){:}
function tmp_2 = code(x, y, z, t, a, b, c)
	t_1 = c * (z * t);
	tmp = 0.0;
	if (z <= -1.8e+18)
		tmp = (x * (((9.0 * (y / z)) + (b / (z * x))) - (4.0 * ((a * t) / x)))) / c;
	elseif (z <= 1.8e+95)
		tmp = (((t * (z * a)) * (-4.0 / c)) + ((b + (9.0 * (x * y))) / c)) / z;
	else
		tmp = t * ((-4.0 * (a / c)) + ((9.0 * ((x * y) / t_1)) + (b / t_1)));
	end
	tmp_2 = tmp;
end
NOTE: x, y, z, t, a, b, and c should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_, a_, b_, c_] := Block[{t$95$1 = N[(c * N[(z * t), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[z, -1.8e+18], N[(N[(x * N[(N[(N[(9.0 * N[(y / z), $MachinePrecision]), $MachinePrecision] + N[(b / N[(z * x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - N[(4.0 * N[(N[(a * t), $MachinePrecision] / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / c), $MachinePrecision], If[LessEqual[z, 1.8e+95], N[(N[(N[(N[(t * N[(z * a), $MachinePrecision]), $MachinePrecision] * N[(-4.0 / c), $MachinePrecision]), $MachinePrecision] + N[(N[(b + N[(9.0 * N[(x * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / c), $MachinePrecision]), $MachinePrecision] / z), $MachinePrecision], N[(t * N[(N[(-4.0 * N[(a / c), $MachinePrecision]), $MachinePrecision] + N[(N[(9.0 * N[(N[(x * y), $MachinePrecision] / t$95$1), $MachinePrecision]), $MachinePrecision] + N[(b / t$95$1), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}
[x, y, z, t, a, b, c] = \mathsf{sort}([x, y, z, t, a, b, c])\\
\\
\begin{array}{l}
t_1 := c \cdot \left(z \cdot t\right)\\
\mathbf{if}\;z \leq -1.8 \cdot 10^{+18}:\\
\;\;\;\;\frac{x \cdot \left(\left(9 \cdot \frac{y}{z} + \frac{b}{z \cdot x}\right) - 4 \cdot \frac{a \cdot t}{x}\right)}{c}\\

\mathbf{elif}\;z \leq 1.8 \cdot 10^{+95}:\\
\;\;\;\;\frac{\left(t \cdot \left(z \cdot a\right)\right) \cdot \frac{-4}{c} + \frac{b + 9 \cdot \left(x \cdot y\right)}{c}}{z}\\

\mathbf{else}:\\
\;\;\;\;t \cdot \left(-4 \cdot \frac{a}{c} + \left(9 \cdot \frac{x \cdot y}{t\_1} + \frac{b}{t\_1}\right)\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if z < -1.8e18

    1. Initial program 51.2%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. associate-+l-51.2%

        \[\leadsto \frac{\color{blue}{\left(x \cdot 9\right) \cdot y - \left(\left(\left(z \cdot 4\right) \cdot t\right) \cdot a - b\right)}}{z \cdot c} \]
      2. *-commutative51.2%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)} - b\right)}{z \cdot c} \]
      3. associate-*r*57.6%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t} - b\right)}{z \cdot c} \]
      4. *-commutative57.6%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t - b\right)}{z \cdot c} \]
      5. associate-+l-57.6%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      6. associate-*l*57.6%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      7. associate-*l*57.6%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      8. *-commutative57.6%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified57.6%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 76.1%

      \[\leadsto \color{blue}{x \cdot \left(\left(9 \cdot \frac{y}{c \cdot z} + \frac{b}{c \cdot \left(x \cdot z\right)}\right) - 4 \cdot \frac{a \cdot t}{c \cdot x}\right)} \]
    6. Taylor expanded in c around 0 91.0%

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

    if -1.8e18 < z < 1.79999999999999989e95

    1. Initial program 92.9%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. associate-+l-92.9%

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

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

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t} - b\right)}{z \cdot c} \]
      4. *-commutative93.6%

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

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      6. associate-*l*94.1%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      7. associate-*l*90.0%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      8. *-commutative90.0%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified90.0%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 83.8%

      \[\leadsto \frac{\color{blue}{y \cdot \left(\left(9 \cdot x + \frac{b}{y}\right) - 4 \cdot \frac{a \cdot \left(t \cdot z\right)}{y}\right)}}{z \cdot c} \]
    6. Step-by-step derivation
      1. associate--l+83.8%

        \[\leadsto \frac{y \cdot \color{blue}{\left(9 \cdot x + \left(\frac{b}{y} - 4 \cdot \frac{a \cdot \left(t \cdot z\right)}{y}\right)\right)}}{z \cdot c} \]
      2. associate-*r/83.8%

        \[\leadsto \frac{y \cdot \left(9 \cdot x + \left(\frac{b}{y} - \color{blue}{\frac{4 \cdot \left(a \cdot \left(t \cdot z\right)\right)}{y}}\right)\right)}{z \cdot c} \]
      3. div-sub83.8%

        \[\leadsto \frac{y \cdot \left(9 \cdot x + \color{blue}{\frac{b - 4 \cdot \left(a \cdot \left(t \cdot z\right)\right)}{y}}\right)}{z \cdot c} \]
      4. cancel-sign-sub-inv83.8%

        \[\leadsto \frac{y \cdot \left(9 \cdot x + \frac{\color{blue}{b + \left(-4\right) \cdot \left(a \cdot \left(t \cdot z\right)\right)}}{y}\right)}{z \cdot c} \]
      5. metadata-eval83.8%

        \[\leadsto \frac{y \cdot \left(9 \cdot x + \frac{b + \color{blue}{-4} \cdot \left(a \cdot \left(t \cdot z\right)\right)}{y}\right)}{z \cdot c} \]
    7. Simplified83.8%

      \[\leadsto \frac{\color{blue}{y \cdot \left(9 \cdot x + \frac{b + -4 \cdot \left(a \cdot \left(t \cdot z\right)\right)}{y}\right)}}{z \cdot c} \]
    8. Taylor expanded in z around 0 87.1%

      \[\leadsto \color{blue}{\frac{-4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c} + \frac{y \cdot \left(9 \cdot x + \frac{b}{y}\right)}{c}}{z}} \]
    9. Step-by-step derivation
      1. div-inv87.1%

        \[\leadsto \color{blue}{\left(-4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c} + \frac{y \cdot \left(9 \cdot x + \frac{b}{y}\right)}{c}\right) \cdot \frac{1}{z}} \]
      2. +-commutative87.1%

        \[\leadsto \color{blue}{\left(\frac{y \cdot \left(9 \cdot x + \frac{b}{y}\right)}{c} + -4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c}\right)} \cdot \frac{1}{z} \]
      3. associate-/l*82.0%

        \[\leadsto \left(\color{blue}{y \cdot \frac{9 \cdot x + \frac{b}{y}}{c}} + -4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c}\right) \cdot \frac{1}{z} \]
      4. fma-define82.6%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, \frac{9 \cdot x + \frac{b}{y}}{c}, -4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c}\right)} \cdot \frac{1}{z} \]
      5. fma-define82.6%

        \[\leadsto \mathsf{fma}\left(y, \frac{\color{blue}{\mathsf{fma}\left(9, x, \frac{b}{y}\right)}}{c}, -4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c}\right) \cdot \frac{1}{z} \]
      6. associate-*r/82.6%

        \[\leadsto \mathsf{fma}\left(y, \frac{\mathsf{fma}\left(9, x, \frac{b}{y}\right)}{c}, \color{blue}{\frac{-4 \cdot \left(a \cdot \left(t \cdot z\right)\right)}{c}}\right) \cdot \frac{1}{z} \]
    10. Applied egg-rr82.6%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, \frac{\mathsf{fma}\left(9, x, \frac{b}{y}\right)}{c}, \frac{-4 \cdot \left(a \cdot \left(t \cdot z\right)\right)}{c}\right) \cdot \frac{1}{z}} \]
    11. Step-by-step derivation
      1. associate-*r/82.7%

        \[\leadsto \color{blue}{\frac{\mathsf{fma}\left(y, \frac{\mathsf{fma}\left(9, x, \frac{b}{y}\right)}{c}, \frac{-4 \cdot \left(a \cdot \left(t \cdot z\right)\right)}{c}\right) \cdot 1}{z}} \]
      2. *-rgt-identity82.7%

        \[\leadsto \frac{\color{blue}{\mathsf{fma}\left(y, \frac{\mathsf{fma}\left(9, x, \frac{b}{y}\right)}{c}, \frac{-4 \cdot \left(a \cdot \left(t \cdot z\right)\right)}{c}\right)}}{z} \]
    12. Simplified94.5%

      \[\leadsto \color{blue}{\frac{\left(t \cdot \left(z \cdot a\right)\right) \cdot \frac{-4}{c} + \frac{\mathsf{fma}\left(9, x \cdot y, b\right)}{c}}{z}} \]
    13. Taylor expanded in c around 0 94.5%

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

    if 1.79999999999999989e95 < z

    1. Initial program 61.4%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. associate-+l-61.4%

        \[\leadsto \frac{\color{blue}{\left(x \cdot 9\right) \cdot y - \left(\left(\left(z \cdot 4\right) \cdot t\right) \cdot a - b\right)}}{z \cdot c} \]
      2. *-commutative61.4%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)} - b\right)}{z \cdot c} \]
      3. associate-*r*61.4%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t} - b\right)}{z \cdot c} \]
      4. *-commutative61.4%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t - b\right)}{z \cdot c} \]
      5. associate-+l-61.4%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      6. associate-*l*61.4%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      7. associate-*l*65.8%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      8. *-commutative65.8%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified65.8%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in t around inf 78.9%

      \[\leadsto \color{blue}{t \cdot \left(-4 \cdot \frac{a}{c} + \left(9 \cdot \frac{x \cdot y}{c \cdot \left(t \cdot z\right)} + \frac{b}{c \cdot \left(t \cdot z\right)}\right)\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification91.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -1.8 \cdot 10^{+18}:\\ \;\;\;\;\frac{x \cdot \left(\left(9 \cdot \frac{y}{z} + \frac{b}{z \cdot x}\right) - 4 \cdot \frac{a \cdot t}{x}\right)}{c}\\ \mathbf{elif}\;z \leq 1.8 \cdot 10^{+95}:\\ \;\;\;\;\frac{\left(t \cdot \left(z \cdot a\right)\right) \cdot \frac{-4}{c} + \frac{b + 9 \cdot \left(x \cdot y\right)}{c}}{z}\\ \mathbf{else}:\\ \;\;\;\;t \cdot \left(-4 \cdot \frac{a}{c} + \left(9 \cdot \frac{x \cdot y}{c \cdot \left(z \cdot t\right)} + \frac{b}{c \cdot \left(z \cdot t\right)}\right)\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 2: 86.1% accurate, 0.2× speedup?

\[\begin{array}{l} [x, y, z, t, a, b, c] = \mathsf{sort}([x, y, z, t, a, b, c])\\ \\ \begin{array}{l} t_1 := \frac{b + \left(y \cdot \left(x \cdot 9\right) - a \cdot \left(t \cdot \left(z \cdot 4\right)\right)\right)}{z \cdot c}\\ \mathbf{if}\;t\_1 \leq -2 \cdot 10^{-219}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;t\_1 \leq 5 \cdot 10^{-216}:\\ \;\;\;\;\frac{9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}}{z}\\ \mathbf{elif}\;t\_1 \leq \infty:\\ \;\;\;\;t\_1\\ \mathbf{else}:\\ \;\;\;\;a \cdot \frac{t \cdot -4}{c}\\ \end{array} \end{array} \]
NOTE: x, y, z, t, a, b, and c should be sorted in increasing order before calling this function.
(FPCore (x y z t a b c)
 :precision binary64
 (let* ((t_1 (/ (+ b (- (* y (* x 9.0)) (* a (* t (* z 4.0))))) (* z c))))
   (if (<= t_1 -2e-219)
     t_1
     (if (<= t_1 5e-216)
       (/ (+ (* 9.0 (/ (* x y) c)) (/ b c)) z)
       (if (<= t_1 INFINITY) t_1 (* a (/ (* t -4.0) c)))))))
assert(x < y && y < z && z < t && t < a && a < b && b < c);
double code(double x, double y, double z, double t, double a, double b, double c) {
	double t_1 = (b + ((y * (x * 9.0)) - (a * (t * (z * 4.0))))) / (z * c);
	double tmp;
	if (t_1 <= -2e-219) {
		tmp = t_1;
	} else if (t_1 <= 5e-216) {
		tmp = ((9.0 * ((x * y) / c)) + (b / c)) / z;
	} else if (t_1 <= ((double) INFINITY)) {
		tmp = t_1;
	} else {
		tmp = a * ((t * -4.0) / c);
	}
	return tmp;
}
assert x < y && y < z && z < t && t < a && a < b && b < c;
public static double code(double x, double y, double z, double t, double a, double b, double c) {
	double t_1 = (b + ((y * (x * 9.0)) - (a * (t * (z * 4.0))))) / (z * c);
	double tmp;
	if (t_1 <= -2e-219) {
		tmp = t_1;
	} else if (t_1 <= 5e-216) {
		tmp = ((9.0 * ((x * y) / c)) + (b / c)) / z;
	} else if (t_1 <= Double.POSITIVE_INFINITY) {
		tmp = t_1;
	} else {
		tmp = a * ((t * -4.0) / c);
	}
	return tmp;
}
[x, y, z, t, a, b, c] = sort([x, y, z, t, a, b, c])
def code(x, y, z, t, a, b, c):
	t_1 = (b + ((y * (x * 9.0)) - (a * (t * (z * 4.0))))) / (z * c)
	tmp = 0
	if t_1 <= -2e-219:
		tmp = t_1
	elif t_1 <= 5e-216:
		tmp = ((9.0 * ((x * y) / c)) + (b / c)) / z
	elif t_1 <= math.inf:
		tmp = t_1
	else:
		tmp = a * ((t * -4.0) / c)
	return tmp
x, y, z, t, a, b, c = sort([x, y, z, t, a, b, c])
function code(x, y, z, t, a, b, c)
	t_1 = Float64(Float64(b + Float64(Float64(y * Float64(x * 9.0)) - Float64(a * Float64(t * Float64(z * 4.0))))) / Float64(z * c))
	tmp = 0.0
	if (t_1 <= -2e-219)
		tmp = t_1;
	elseif (t_1 <= 5e-216)
		tmp = Float64(Float64(Float64(9.0 * Float64(Float64(x * y) / c)) + Float64(b / c)) / z);
	elseif (t_1 <= Inf)
		tmp = t_1;
	else
		tmp = Float64(a * Float64(Float64(t * -4.0) / c));
	end
	return tmp
end
x, y, z, t, a, b, c = num2cell(sort([x, y, z, t, a, b, c])){:}
function tmp_2 = code(x, y, z, t, a, b, c)
	t_1 = (b + ((y * (x * 9.0)) - (a * (t * (z * 4.0))))) / (z * c);
	tmp = 0.0;
	if (t_1 <= -2e-219)
		tmp = t_1;
	elseif (t_1 <= 5e-216)
		tmp = ((9.0 * ((x * y) / c)) + (b / c)) / z;
	elseif (t_1 <= Inf)
		tmp = t_1;
	else
		tmp = a * ((t * -4.0) / c);
	end
	tmp_2 = tmp;
end
NOTE: x, y, z, t, a, b, and c should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_, a_, b_, c_] := Block[{t$95$1 = N[(N[(b + N[(N[(y * N[(x * 9.0), $MachinePrecision]), $MachinePrecision] - N[(a * N[(t * N[(z * 4.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(z * c), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$1, -2e-219], t$95$1, If[LessEqual[t$95$1, 5e-216], N[(N[(N[(9.0 * N[(N[(x * y), $MachinePrecision] / c), $MachinePrecision]), $MachinePrecision] + N[(b / c), $MachinePrecision]), $MachinePrecision] / z), $MachinePrecision], If[LessEqual[t$95$1, Infinity], t$95$1, N[(a * N[(N[(t * -4.0), $MachinePrecision] / c), $MachinePrecision]), $MachinePrecision]]]]]
\begin{array}{l}
[x, y, z, t, a, b, c] = \mathsf{sort}([x, y, z, t, a, b, c])\\
\\
\begin{array}{l}
t_1 := \frac{b + \left(y \cdot \left(x \cdot 9\right) - a \cdot \left(t \cdot \left(z \cdot 4\right)\right)\right)}{z \cdot c}\\
\mathbf{if}\;t\_1 \leq -2 \cdot 10^{-219}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;t\_1 \leq 5 \cdot 10^{-216}:\\
\;\;\;\;\frac{9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}}{z}\\

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

\mathbf{else}:\\
\;\;\;\;a \cdot \frac{t \cdot -4}{c}\\


\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)) < -2.0000000000000001e-219 or 5.00000000000000021e-216 < (/.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 88.6%

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

    if -2.0000000000000001e-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)) < 5.00000000000000021e-216

    1. Initial program 59.3%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. associate-+l-59.3%

        \[\leadsto \frac{\color{blue}{\left(x \cdot 9\right) \cdot y - \left(\left(\left(z \cdot 4\right) \cdot t\right) \cdot a - b\right)}}{z \cdot c} \]
      2. *-commutative59.3%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)} - b\right)}{z \cdot c} \]
      3. associate-*r*54.6%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t} - b\right)}{z \cdot c} \]
      4. *-commutative54.6%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t - b\right)}{z \cdot c} \]
      5. associate-+l-54.6%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      6. associate-*l*54.5%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      7. associate-*l*59.3%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      8. *-commutative59.3%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified59.3%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 99.7%

      \[\leadsto \color{blue}{\frac{-4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c} + \left(9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}\right)}{z}} \]
    6. Taylor expanded in a around 0 90.8%

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

    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. associate-+l-0.0%

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

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)} - b\right)}{z \cdot c} \]
      3. associate-*r*0.9%

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

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t - b\right)}{z \cdot c} \]
      5. associate-+l-0.9%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      6. associate-*l*0.9%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      7. associate-*l*0.9%

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

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

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around inf 73.0%

      \[\leadsto \color{blue}{-4 \cdot \frac{a \cdot t}{c}} \]
    6. Step-by-step derivation
      1. *-commutative73.0%

        \[\leadsto \color{blue}{\frac{a \cdot t}{c} \cdot -4} \]
      2. associate-/l*88.9%

        \[\leadsto \color{blue}{\left(a \cdot \frac{t}{c}\right)} \cdot -4 \]
      3. associate-*r*88.9%

        \[\leadsto \color{blue}{a \cdot \left(\frac{t}{c} \cdot -4\right)} \]
      4. associate-*l/88.9%

        \[\leadsto a \cdot \color{blue}{\frac{t \cdot -4}{c}} \]
    7. Simplified88.9%

      \[\leadsto \color{blue}{a \cdot \frac{t \cdot -4}{c}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification88.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{b + \left(y \cdot \left(x \cdot 9\right) - a \cdot \left(t \cdot \left(z \cdot 4\right)\right)\right)}{z \cdot c} \leq -2 \cdot 10^{-219}:\\ \;\;\;\;\frac{b + \left(y \cdot \left(x \cdot 9\right) - a \cdot \left(t \cdot \left(z \cdot 4\right)\right)\right)}{z \cdot c}\\ \mathbf{elif}\;\frac{b + \left(y \cdot \left(x \cdot 9\right) - a \cdot \left(t \cdot \left(z \cdot 4\right)\right)\right)}{z \cdot c} \leq 5 \cdot 10^{-216}:\\ \;\;\;\;\frac{9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}}{z}\\ \mathbf{elif}\;\frac{b + \left(y \cdot \left(x \cdot 9\right) - a \cdot \left(t \cdot \left(z \cdot 4\right)\right)\right)}{z \cdot c} \leq \infty:\\ \;\;\;\;\frac{b + \left(y \cdot \left(x \cdot 9\right) - a \cdot \left(t \cdot \left(z \cdot 4\right)\right)\right)}{z \cdot c}\\ \mathbf{else}:\\ \;\;\;\;a \cdot \frac{t \cdot -4}{c}\\ \end{array} \]
  5. Add Preprocessing

Alternative 3: 85.6% accurate, 0.6× speedup?

\[\begin{array}{l} [x, y, z, t, a, b, c] = \mathsf{sort}([x, y, z, t, a, b, c])\\ \\ \begin{array}{l} \mathbf{if}\;z \leq -6 \cdot 10^{+16}:\\ \;\;\;\;\frac{x \cdot \left(\left(9 \cdot \frac{y}{z} + \frac{b}{z \cdot x}\right) - 4 \cdot \frac{a \cdot t}{x}\right)}{c}\\ \mathbf{elif}\;z \leq 9 \cdot 10^{+144}:\\ \;\;\;\;\frac{\left(t \cdot \left(z \cdot a\right)\right) \cdot \frac{-4}{c} + \frac{b + 9 \cdot \left(x \cdot y\right)}{c}}{z}\\ \mathbf{else}:\\ \;\;\;\;\frac{b}{z \cdot c} - 4 \cdot \frac{a \cdot t}{c}\\ \end{array} \end{array} \]
NOTE: x, y, z, t, a, b, and c should be sorted in increasing order before calling this function.
(FPCore (x y z t a b c)
 :precision binary64
 (if (<= z -6e+16)
   (/ (* x (- (+ (* 9.0 (/ y z)) (/ b (* z x))) (* 4.0 (/ (* a t) x)))) c)
   (if (<= z 9e+144)
     (/ (+ (* (* t (* z a)) (/ -4.0 c)) (/ (+ b (* 9.0 (* x y))) c)) z)
     (- (/ b (* z c)) (* 4.0 (/ (* a t) c))))))
assert(x < y && y < z && z < t && t < a && a < b && b < c);
double code(double x, double y, double z, double t, double a, double b, double c) {
	double tmp;
	if (z <= -6e+16) {
		tmp = (x * (((9.0 * (y / z)) + (b / (z * x))) - (4.0 * ((a * t) / x)))) / c;
	} else if (z <= 9e+144) {
		tmp = (((t * (z * a)) * (-4.0 / c)) + ((b + (9.0 * (x * y))) / c)) / z;
	} else {
		tmp = (b / (z * c)) - (4.0 * ((a * t) / c));
	}
	return tmp;
}
NOTE: x, y, z, t, a, b, and c should be sorted in increasing order before calling this function.
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) :: tmp
    if (z <= (-6d+16)) then
        tmp = (x * (((9.0d0 * (y / z)) + (b / (z * x))) - (4.0d0 * ((a * t) / x)))) / c
    else if (z <= 9d+144) then
        tmp = (((t * (z * a)) * ((-4.0d0) / c)) + ((b + (9.0d0 * (x * y))) / c)) / z
    else
        tmp = (b / (z * c)) - (4.0d0 * ((a * t) / c))
    end if
    code = tmp
end function
assert x < y && y < z && z < t && t < a && a < b && b < c;
public static double code(double x, double y, double z, double t, double a, double b, double c) {
	double tmp;
	if (z <= -6e+16) {
		tmp = (x * (((9.0 * (y / z)) + (b / (z * x))) - (4.0 * ((a * t) / x)))) / c;
	} else if (z <= 9e+144) {
		tmp = (((t * (z * a)) * (-4.0 / c)) + ((b + (9.0 * (x * y))) / c)) / z;
	} else {
		tmp = (b / (z * c)) - (4.0 * ((a * t) / c));
	}
	return tmp;
}
[x, y, z, t, a, b, c] = sort([x, y, z, t, a, b, c])
def code(x, y, z, t, a, b, c):
	tmp = 0
	if z <= -6e+16:
		tmp = (x * (((9.0 * (y / z)) + (b / (z * x))) - (4.0 * ((a * t) / x)))) / c
	elif z <= 9e+144:
		tmp = (((t * (z * a)) * (-4.0 / c)) + ((b + (9.0 * (x * y))) / c)) / z
	else:
		tmp = (b / (z * c)) - (4.0 * ((a * t) / c))
	return tmp
x, y, z, t, a, b, c = sort([x, y, z, t, a, b, c])
function code(x, y, z, t, a, b, c)
	tmp = 0.0
	if (z <= -6e+16)
		tmp = Float64(Float64(x * Float64(Float64(Float64(9.0 * Float64(y / z)) + Float64(b / Float64(z * x))) - Float64(4.0 * Float64(Float64(a * t) / x)))) / c);
	elseif (z <= 9e+144)
		tmp = Float64(Float64(Float64(Float64(t * Float64(z * a)) * Float64(-4.0 / c)) + Float64(Float64(b + Float64(9.0 * Float64(x * y))) / c)) / z);
	else
		tmp = Float64(Float64(b / Float64(z * c)) - Float64(4.0 * Float64(Float64(a * t) / c)));
	end
	return tmp
end
x, y, z, t, a, b, c = num2cell(sort([x, y, z, t, a, b, c])){:}
function tmp_2 = code(x, y, z, t, a, b, c)
	tmp = 0.0;
	if (z <= -6e+16)
		tmp = (x * (((9.0 * (y / z)) + (b / (z * x))) - (4.0 * ((a * t) / x)))) / c;
	elseif (z <= 9e+144)
		tmp = (((t * (z * a)) * (-4.0 / c)) + ((b + (9.0 * (x * y))) / c)) / z;
	else
		tmp = (b / (z * c)) - (4.0 * ((a * t) / c));
	end
	tmp_2 = tmp;
end
NOTE: x, y, z, t, a, b, and c should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_, a_, b_, c_] := If[LessEqual[z, -6e+16], N[(N[(x * N[(N[(N[(9.0 * N[(y / z), $MachinePrecision]), $MachinePrecision] + N[(b / N[(z * x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - N[(4.0 * N[(N[(a * t), $MachinePrecision] / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / c), $MachinePrecision], If[LessEqual[z, 9e+144], N[(N[(N[(N[(t * N[(z * a), $MachinePrecision]), $MachinePrecision] * N[(-4.0 / c), $MachinePrecision]), $MachinePrecision] + N[(N[(b + N[(9.0 * N[(x * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / c), $MachinePrecision]), $MachinePrecision] / z), $MachinePrecision], N[(N[(b / N[(z * c), $MachinePrecision]), $MachinePrecision] - N[(4.0 * N[(N[(a * t), $MachinePrecision] / c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
[x, y, z, t, a, b, c] = \mathsf{sort}([x, y, z, t, a, b, c])\\
\\
\begin{array}{l}
\mathbf{if}\;z \leq -6 \cdot 10^{+16}:\\
\;\;\;\;\frac{x \cdot \left(\left(9 \cdot \frac{y}{z} + \frac{b}{z \cdot x}\right) - 4 \cdot \frac{a \cdot t}{x}\right)}{c}\\

\mathbf{elif}\;z \leq 9 \cdot 10^{+144}:\\
\;\;\;\;\frac{\left(t \cdot \left(z \cdot a\right)\right) \cdot \frac{-4}{c} + \frac{b + 9 \cdot \left(x \cdot y\right)}{c}}{z}\\

\mathbf{else}:\\
\;\;\;\;\frac{b}{z \cdot c} - 4 \cdot \frac{a \cdot t}{c}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if z < -6e16

    1. Initial program 51.2%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. associate-+l-51.2%

        \[\leadsto \frac{\color{blue}{\left(x \cdot 9\right) \cdot y - \left(\left(\left(z \cdot 4\right) \cdot t\right) \cdot a - b\right)}}{z \cdot c} \]
      2. *-commutative51.2%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)} - b\right)}{z \cdot c} \]
      3. associate-*r*57.6%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t} - b\right)}{z \cdot c} \]
      4. *-commutative57.6%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t - b\right)}{z \cdot c} \]
      5. associate-+l-57.6%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      6. associate-*l*57.6%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      7. associate-*l*57.6%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      8. *-commutative57.6%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified57.6%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 76.1%

      \[\leadsto \color{blue}{x \cdot \left(\left(9 \cdot \frac{y}{c \cdot z} + \frac{b}{c \cdot \left(x \cdot z\right)}\right) - 4 \cdot \frac{a \cdot t}{c \cdot x}\right)} \]
    6. Taylor expanded in c around 0 91.0%

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

    if -6e16 < z < 8.99999999999999935e144

    1. Initial program 91.5%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. associate-+l-91.5%

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

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)} - b\right)}{z \cdot c} \]
      3. associate-*r*92.0%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t} - b\right)}{z \cdot c} \]
      4. *-commutative92.0%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t - b\right)}{z \cdot c} \]
      5. associate-+l-92.0%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      6. associate-*l*92.5%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      7. associate-*l*89.3%

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

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified89.3%

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

      \[\leadsto \frac{\color{blue}{y \cdot \left(\left(9 \cdot x + \frac{b}{y}\right) - 4 \cdot \frac{a \cdot \left(t \cdot z\right)}{y}\right)}}{z \cdot c} \]
    6. Step-by-step derivation
      1. associate--l+82.1%

        \[\leadsto \frac{y \cdot \color{blue}{\left(9 \cdot x + \left(\frac{b}{y} - 4 \cdot \frac{a \cdot \left(t \cdot z\right)}{y}\right)\right)}}{z \cdot c} \]
      2. associate-*r/82.1%

        \[\leadsto \frac{y \cdot \left(9 \cdot x + \left(\frac{b}{y} - \color{blue}{\frac{4 \cdot \left(a \cdot \left(t \cdot z\right)\right)}{y}}\right)\right)}{z \cdot c} \]
      3. div-sub82.1%

        \[\leadsto \frac{y \cdot \left(9 \cdot x + \color{blue}{\frac{b - 4 \cdot \left(a \cdot \left(t \cdot z\right)\right)}{y}}\right)}{z \cdot c} \]
      4. cancel-sign-sub-inv82.1%

        \[\leadsto \frac{y \cdot \left(9 \cdot x + \frac{\color{blue}{b + \left(-4\right) \cdot \left(a \cdot \left(t \cdot z\right)\right)}}{y}\right)}{z \cdot c} \]
      5. metadata-eval82.1%

        \[\leadsto \frac{y \cdot \left(9 \cdot x + \frac{b + \color{blue}{-4} \cdot \left(a \cdot \left(t \cdot z\right)\right)}{y}\right)}{z \cdot c} \]
    7. Simplified82.1%

      \[\leadsto \frac{\color{blue}{y \cdot \left(9 \cdot x + \frac{b + -4 \cdot \left(a \cdot \left(t \cdot z\right)\right)}{y}\right)}}{z \cdot c} \]
    8. Taylor expanded in z around 0 84.6%

      \[\leadsto \color{blue}{\frac{-4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c} + \frac{y \cdot \left(9 \cdot x + \frac{b}{y}\right)}{c}}{z}} \]
    9. Step-by-step derivation
      1. div-inv84.6%

        \[\leadsto \color{blue}{\left(-4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c} + \frac{y \cdot \left(9 \cdot x + \frac{b}{y}\right)}{c}\right) \cdot \frac{1}{z}} \]
      2. +-commutative84.6%

        \[\leadsto \color{blue}{\left(\frac{y \cdot \left(9 \cdot x + \frac{b}{y}\right)}{c} + -4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c}\right)} \cdot \frac{1}{z} \]
      3. associate-/l*79.5%

        \[\leadsto \left(\color{blue}{y \cdot \frac{9 \cdot x + \frac{b}{y}}{c}} + -4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c}\right) \cdot \frac{1}{z} \]
      4. fma-define80.0%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, \frac{9 \cdot x + \frac{b}{y}}{c}, -4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c}\right)} \cdot \frac{1}{z} \]
      5. fma-define80.0%

        \[\leadsto \mathsf{fma}\left(y, \frac{\color{blue}{\mathsf{fma}\left(9, x, \frac{b}{y}\right)}}{c}, -4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c}\right) \cdot \frac{1}{z} \]
      6. associate-*r/80.0%

        \[\leadsto \mathsf{fma}\left(y, \frac{\mathsf{fma}\left(9, x, \frac{b}{y}\right)}{c}, \color{blue}{\frac{-4 \cdot \left(a \cdot \left(t \cdot z\right)\right)}{c}}\right) \cdot \frac{1}{z} \]
    10. Applied egg-rr80.0%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, \frac{\mathsf{fma}\left(9, x, \frac{b}{y}\right)}{c}, \frac{-4 \cdot \left(a \cdot \left(t \cdot z\right)\right)}{c}\right) \cdot \frac{1}{z}} \]
    11. Step-by-step derivation
      1. associate-*r/80.1%

        \[\leadsto \color{blue}{\frac{\mathsf{fma}\left(y, \frac{\mathsf{fma}\left(9, x, \frac{b}{y}\right)}{c}, \frac{-4 \cdot \left(a \cdot \left(t \cdot z\right)\right)}{c}\right) \cdot 1}{z}} \]
      2. *-rgt-identity80.1%

        \[\leadsto \frac{\color{blue}{\mathsf{fma}\left(y, \frac{\mathsf{fma}\left(9, x, \frac{b}{y}\right)}{c}, \frac{-4 \cdot \left(a \cdot \left(t \cdot z\right)\right)}{c}\right)}}{z} \]
    12. Simplified92.9%

      \[\leadsto \color{blue}{\frac{\left(t \cdot \left(z \cdot a\right)\right) \cdot \frac{-4}{c} + \frac{\mathsf{fma}\left(9, x \cdot y, b\right)}{c}}{z}} \]
    13. Taylor expanded in c around 0 92.9%

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

    if 8.99999999999999935e144 < z

    1. Initial program 52.3%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. associate-+l-52.3%

        \[\leadsto \frac{\color{blue}{\left(x \cdot 9\right) \cdot y - \left(\left(\left(z \cdot 4\right) \cdot t\right) \cdot a - b\right)}}{z \cdot c} \]
      2. *-commutative52.3%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)} - b\right)}{z \cdot c} \]
      3. associate-*r*52.2%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t} - b\right)}{z \cdot c} \]
      4. *-commutative52.2%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t - b\right)}{z \cdot c} \]
      5. associate-+l-52.2%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      6. associate-*l*52.2%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      7. associate-*l*55.8%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      8. *-commutative55.8%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified55.8%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 73.4%

      \[\leadsto \color{blue}{x \cdot \left(\left(9 \cdot \frac{y}{c \cdot z} + \frac{b}{c \cdot \left(x \cdot z\right)}\right) - 4 \cdot \frac{a \cdot t}{c \cdot x}\right)} \]
    6. Taylor expanded in x around 0 83.3%

      \[\leadsto \color{blue}{\frac{b}{c \cdot z} - 4 \cdot \frac{a \cdot t}{c}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification91.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -6 \cdot 10^{+16}:\\ \;\;\;\;\frac{x \cdot \left(\left(9 \cdot \frac{y}{z} + \frac{b}{z \cdot x}\right) - 4 \cdot \frac{a \cdot t}{x}\right)}{c}\\ \mathbf{elif}\;z \leq 9 \cdot 10^{+144}:\\ \;\;\;\;\frac{\left(t \cdot \left(z \cdot a\right)\right) \cdot \frac{-4}{c} + \frac{b + 9 \cdot \left(x \cdot y\right)}{c}}{z}\\ \mathbf{else}:\\ \;\;\;\;\frac{b}{z \cdot c} - 4 \cdot \frac{a \cdot t}{c}\\ \end{array} \]
  5. Add Preprocessing

Alternative 4: 82.1% accurate, 0.8× speedup?

\[\begin{array}{l} [x, y, z, t, a, b, c] = \mathsf{sort}([x, y, z, t, a, b, c])\\ \\ \begin{array}{l} \mathbf{if}\;z \leq 1.4 \cdot 10^{+145}:\\ \;\;\;\;\frac{b + \left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(a \cdot t\right)\right)}{z \cdot c}\\ \mathbf{else}:\\ \;\;\;\;\frac{b}{z \cdot c} - 4 \cdot \frac{a \cdot t}{c}\\ \end{array} \end{array} \]
NOTE: x, y, z, t, a, b, and c should be sorted in increasing order before calling this function.
(FPCore (x y z t a b c)
 :precision binary64
 (if (<= z 1.4e+145)
   (/ (+ b (- (* x (* 9.0 y)) (* (* z 4.0) (* a t)))) (* z c))
   (- (/ b (* z c)) (* 4.0 (/ (* a t) c)))))
assert(x < y && y < z && z < t && t < a && a < b && b < c);
double code(double x, double y, double z, double t, double a, double b, double c) {
	double tmp;
	if (z <= 1.4e+145) {
		tmp = (b + ((x * (9.0 * y)) - ((z * 4.0) * (a * t)))) / (z * c);
	} else {
		tmp = (b / (z * c)) - (4.0 * ((a * t) / c));
	}
	return tmp;
}
NOTE: x, y, z, t, a, b, and c should be sorted in increasing order before calling this function.
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) :: tmp
    if (z <= 1.4d+145) then
        tmp = (b + ((x * (9.0d0 * y)) - ((z * 4.0d0) * (a * t)))) / (z * c)
    else
        tmp = (b / (z * c)) - (4.0d0 * ((a * t) / c))
    end if
    code = tmp
end function
assert x < y && y < z && z < t && t < a && a < b && b < c;
public static double code(double x, double y, double z, double t, double a, double b, double c) {
	double tmp;
	if (z <= 1.4e+145) {
		tmp = (b + ((x * (9.0 * y)) - ((z * 4.0) * (a * t)))) / (z * c);
	} else {
		tmp = (b / (z * c)) - (4.0 * ((a * t) / c));
	}
	return tmp;
}
[x, y, z, t, a, b, c] = sort([x, y, z, t, a, b, c])
def code(x, y, z, t, a, b, c):
	tmp = 0
	if z <= 1.4e+145:
		tmp = (b + ((x * (9.0 * y)) - ((z * 4.0) * (a * t)))) / (z * c)
	else:
		tmp = (b / (z * c)) - (4.0 * ((a * t) / c))
	return tmp
x, y, z, t, a, b, c = sort([x, y, z, t, a, b, c])
function code(x, y, z, t, a, b, c)
	tmp = 0.0
	if (z <= 1.4e+145)
		tmp = Float64(Float64(b + Float64(Float64(x * Float64(9.0 * y)) - Float64(Float64(z * 4.0) * Float64(a * t)))) / Float64(z * c));
	else
		tmp = Float64(Float64(b / Float64(z * c)) - Float64(4.0 * Float64(Float64(a * t) / c)));
	end
	return tmp
end
x, y, z, t, a, b, c = num2cell(sort([x, y, z, t, a, b, c])){:}
function tmp_2 = code(x, y, z, t, a, b, c)
	tmp = 0.0;
	if (z <= 1.4e+145)
		tmp = (b + ((x * (9.0 * y)) - ((z * 4.0) * (a * t)))) / (z * c);
	else
		tmp = (b / (z * c)) - (4.0 * ((a * t) / c));
	end
	tmp_2 = tmp;
end
NOTE: x, y, z, t, a, b, and c should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_, a_, b_, c_] := If[LessEqual[z, 1.4e+145], N[(N[(b + N[(N[(x * N[(9.0 * y), $MachinePrecision]), $MachinePrecision] - N[(N[(z * 4.0), $MachinePrecision] * N[(a * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(z * c), $MachinePrecision]), $MachinePrecision], N[(N[(b / N[(z * c), $MachinePrecision]), $MachinePrecision] - N[(4.0 * N[(N[(a * t), $MachinePrecision] / c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
[x, y, z, t, a, b, c] = \mathsf{sort}([x, y, z, t, a, b, c])\\
\\
\begin{array}{l}
\mathbf{if}\;z \leq 1.4 \cdot 10^{+145}:\\
\;\;\;\;\frac{b + \left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(a \cdot t\right)\right)}{z \cdot c}\\

\mathbf{else}:\\
\;\;\;\;\frac{b}{z \cdot c} - 4 \cdot \frac{a \cdot t}{c}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < 1.3999999999999999e145

    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. associate-+l-83.5%

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

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

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

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

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      6. associate-*l*85.6%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      7. associate-*l*83.0%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      8. *-commutative83.0%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified83.0%

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

    if 1.3999999999999999e145 < z

    1. Initial program 52.3%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. associate-+l-52.3%

        \[\leadsto \frac{\color{blue}{\left(x \cdot 9\right) \cdot y - \left(\left(\left(z \cdot 4\right) \cdot t\right) \cdot a - b\right)}}{z \cdot c} \]
      2. *-commutative52.3%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)} - b\right)}{z \cdot c} \]
      3. associate-*r*52.2%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t} - b\right)}{z \cdot c} \]
      4. *-commutative52.2%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t - b\right)}{z \cdot c} \]
      5. associate-+l-52.2%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      6. associate-*l*52.2%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      7. associate-*l*55.8%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      8. *-commutative55.8%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified55.8%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 73.4%

      \[\leadsto \color{blue}{x \cdot \left(\left(9 \cdot \frac{y}{c \cdot z} + \frac{b}{c \cdot \left(x \cdot z\right)}\right) - 4 \cdot \frac{a \cdot t}{c \cdot x}\right)} \]
    6. Taylor expanded in x around 0 83.3%

      \[\leadsto \color{blue}{\frac{b}{c \cdot z} - 4 \cdot \frac{a \cdot t}{c}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification83.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq 1.4 \cdot 10^{+145}:\\ \;\;\;\;\frac{b + \left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(a \cdot t\right)\right)}{z \cdot c}\\ \mathbf{else}:\\ \;\;\;\;\frac{b}{z \cdot c} - 4 \cdot \frac{a \cdot t}{c}\\ \end{array} \]
  5. Add Preprocessing

Alternative 5: 73.4% accurate, 0.8× speedup?

\[\begin{array}{l} [x, y, z, t, a, b, c] = \mathsf{sort}([x, y, z, t, a, b, c])\\ \\ \begin{array}{l} \mathbf{if}\;z \leq -4.3 \cdot 10^{-32} \lor \neg \left(z \leq 1.6 \cdot 10^{-80}\right):\\ \;\;\;\;\frac{b}{z \cdot c} - 4 \cdot \frac{a \cdot t}{c}\\ \mathbf{else}:\\ \;\;\;\;\frac{b + 9 \cdot \left(x \cdot y\right)}{z \cdot c}\\ \end{array} \end{array} \]
NOTE: x, y, z, t, a, b, and c should be sorted in increasing order before calling this function.
(FPCore (x y z t a b c)
 :precision binary64
 (if (or (<= z -4.3e-32) (not (<= z 1.6e-80)))
   (- (/ b (* z c)) (* 4.0 (/ (* a t) c)))
   (/ (+ b (* 9.0 (* x y))) (* z c))))
assert(x < y && y < z && z < t && t < a && a < b && b < c);
double code(double x, double y, double z, double t, double a, double b, double c) {
	double tmp;
	if ((z <= -4.3e-32) || !(z <= 1.6e-80)) {
		tmp = (b / (z * c)) - (4.0 * ((a * t) / c));
	} else {
		tmp = (b + (9.0 * (x * y))) / (z * c);
	}
	return tmp;
}
NOTE: x, y, z, t, a, b, and c should be sorted in increasing order before calling this function.
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) :: tmp
    if ((z <= (-4.3d-32)) .or. (.not. (z <= 1.6d-80))) then
        tmp = (b / (z * c)) - (4.0d0 * ((a * t) / c))
    else
        tmp = (b + (9.0d0 * (x * y))) / (z * c)
    end if
    code = tmp
end function
assert x < y && y < z && z < t && t < a && a < b && b < c;
public static double code(double x, double y, double z, double t, double a, double b, double c) {
	double tmp;
	if ((z <= -4.3e-32) || !(z <= 1.6e-80)) {
		tmp = (b / (z * c)) - (4.0 * ((a * t) / c));
	} else {
		tmp = (b + (9.0 * (x * y))) / (z * c);
	}
	return tmp;
}
[x, y, z, t, a, b, c] = sort([x, y, z, t, a, b, c])
def code(x, y, z, t, a, b, c):
	tmp = 0
	if (z <= -4.3e-32) or not (z <= 1.6e-80):
		tmp = (b / (z * c)) - (4.0 * ((a * t) / c))
	else:
		tmp = (b + (9.0 * (x * y))) / (z * c)
	return tmp
x, y, z, t, a, b, c = sort([x, y, z, t, a, b, c])
function code(x, y, z, t, a, b, c)
	tmp = 0.0
	if ((z <= -4.3e-32) || !(z <= 1.6e-80))
		tmp = Float64(Float64(b / Float64(z * c)) - Float64(4.0 * Float64(Float64(a * t) / c)));
	else
		tmp = Float64(Float64(b + Float64(9.0 * Float64(x * y))) / Float64(z * c));
	end
	return tmp
end
x, y, z, t, a, b, c = num2cell(sort([x, y, z, t, a, b, c])){:}
function tmp_2 = code(x, y, z, t, a, b, c)
	tmp = 0.0;
	if ((z <= -4.3e-32) || ~((z <= 1.6e-80)))
		tmp = (b / (z * c)) - (4.0 * ((a * t) / c));
	else
		tmp = (b + (9.0 * (x * y))) / (z * c);
	end
	tmp_2 = tmp;
end
NOTE: x, y, z, t, a, b, and c should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_, a_, b_, c_] := If[Or[LessEqual[z, -4.3e-32], N[Not[LessEqual[z, 1.6e-80]], $MachinePrecision]], N[(N[(b / N[(z * c), $MachinePrecision]), $MachinePrecision] - N[(4.0 * N[(N[(a * t), $MachinePrecision] / c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(b + N[(9.0 * N[(x * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(z * c), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
[x, y, z, t, a, b, c] = \mathsf{sort}([x, y, z, t, a, b, c])\\
\\
\begin{array}{l}
\mathbf{if}\;z \leq -4.3 \cdot 10^{-32} \lor \neg \left(z \leq 1.6 \cdot 10^{-80}\right):\\
\;\;\;\;\frac{b}{z \cdot c} - 4 \cdot \frac{a \cdot t}{c}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -4.2999999999999999e-32 or 1.5999999999999999e-80 < z

    1. Initial program 67.2%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. associate-+l-67.2%

        \[\leadsto \frac{\color{blue}{\left(x \cdot 9\right) \cdot y - \left(\left(\left(z \cdot 4\right) \cdot t\right) \cdot a - b\right)}}{z \cdot c} \]
      2. *-commutative67.2%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)} - b\right)}{z \cdot c} \]
      3. associate-*r*69.9%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t} - b\right)}{z \cdot c} \]
      4. *-commutative69.9%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t - b\right)}{z \cdot c} \]
      5. associate-+l-69.9%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      6. associate-*l*70.0%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      7. associate-*l*70.0%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      8. *-commutative70.0%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified70.0%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 70.5%

      \[\leadsto \color{blue}{x \cdot \left(\left(9 \cdot \frac{y}{c \cdot z} + \frac{b}{c \cdot \left(x \cdot z\right)}\right) - 4 \cdot \frac{a \cdot t}{c \cdot x}\right)} \]
    6. Taylor expanded in x around 0 72.0%

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

    if -4.2999999999999999e-32 < z < 1.5999999999999999e-80

    1. Initial program 95.8%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. associate-+l-95.8%

        \[\leadsto \frac{\color{blue}{\left(x \cdot 9\right) \cdot y - \left(\left(\left(z \cdot 4\right) \cdot t\right) \cdot a - b\right)}}{z \cdot c} \]
      2. *-commutative95.8%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)} - b\right)}{z \cdot c} \]
      3. associate-*r*95.8%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t} - b\right)}{z \cdot c} \]
      4. *-commutative95.8%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t - b\right)}{z \cdot c} \]
      5. associate-+l-95.8%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      6. associate-*l*96.6%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      7. associate-*l*92.3%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      8. *-commutative92.3%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified92.3%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 85.6%

      \[\leadsto \color{blue}{\frac{b + 9 \cdot \left(x \cdot y\right)}{c \cdot z}} \]
    6. Step-by-step derivation
      1. *-commutative85.6%

        \[\leadsto \frac{b + 9 \cdot \left(x \cdot y\right)}{\color{blue}{z \cdot c}} \]
    7. Simplified85.6%

      \[\leadsto \color{blue}{\frac{b + 9 \cdot \left(x \cdot y\right)}{z \cdot c}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification78.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -4.3 \cdot 10^{-32} \lor \neg \left(z \leq 1.6 \cdot 10^{-80}\right):\\ \;\;\;\;\frac{b}{z \cdot c} - 4 \cdot \frac{a \cdot t}{c}\\ \mathbf{else}:\\ \;\;\;\;\frac{b + 9 \cdot \left(x \cdot y\right)}{z \cdot c}\\ \end{array} \]
  5. Add Preprocessing

Alternative 6: 49.9% accurate, 0.9× speedup?

\[\begin{array}{l} [x, y, z, t, a, b, c] = \mathsf{sort}([x, y, z, t, a, b, c])\\ \\ \begin{array}{l} \mathbf{if}\;t \leq -1.45 \cdot 10^{+126}:\\ \;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c}\right)\\ \mathbf{elif}\;t \leq -4.6 \cdot 10^{-69}:\\ \;\;\;\;9 \cdot \left(x \cdot \frac{y}{z \cdot c}\right)\\ \mathbf{elif}\;t \leq 6 \cdot 10^{-93}:\\ \;\;\;\;b \cdot \frac{1}{z \cdot c}\\ \mathbf{else}:\\ \;\;\;\;a \cdot \frac{t \cdot -4}{c}\\ \end{array} \end{array} \]
NOTE: x, y, z, t, a, b, and c should be sorted in increasing order before calling this function.
(FPCore (x y z t a b c)
 :precision binary64
 (if (<= t -1.45e+126)
   (* -4.0 (* t (/ a c)))
   (if (<= t -4.6e-69)
     (* 9.0 (* x (/ y (* z c))))
     (if (<= t 6e-93) (* b (/ 1.0 (* z c))) (* a (/ (* t -4.0) c))))))
assert(x < y && y < z && z < t && t < a && a < b && b < c);
double code(double x, double y, double z, double t, double a, double b, double c) {
	double tmp;
	if (t <= -1.45e+126) {
		tmp = -4.0 * (t * (a / c));
	} else if (t <= -4.6e-69) {
		tmp = 9.0 * (x * (y / (z * c)));
	} else if (t <= 6e-93) {
		tmp = b * (1.0 / (z * c));
	} else {
		tmp = a * ((t * -4.0) / c);
	}
	return tmp;
}
NOTE: x, y, z, t, a, b, and c should be sorted in increasing order before calling this function.
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) :: tmp
    if (t <= (-1.45d+126)) then
        tmp = (-4.0d0) * (t * (a / c))
    else if (t <= (-4.6d-69)) then
        tmp = 9.0d0 * (x * (y / (z * c)))
    else if (t <= 6d-93) then
        tmp = b * (1.0d0 / (z * c))
    else
        tmp = a * ((t * (-4.0d0)) / c)
    end if
    code = tmp
end function
assert x < y && y < z && z < t && t < a && a < b && b < c;
public static double code(double x, double y, double z, double t, double a, double b, double c) {
	double tmp;
	if (t <= -1.45e+126) {
		tmp = -4.0 * (t * (a / c));
	} else if (t <= -4.6e-69) {
		tmp = 9.0 * (x * (y / (z * c)));
	} else if (t <= 6e-93) {
		tmp = b * (1.0 / (z * c));
	} else {
		tmp = a * ((t * -4.0) / c);
	}
	return tmp;
}
[x, y, z, t, a, b, c] = sort([x, y, z, t, a, b, c])
def code(x, y, z, t, a, b, c):
	tmp = 0
	if t <= -1.45e+126:
		tmp = -4.0 * (t * (a / c))
	elif t <= -4.6e-69:
		tmp = 9.0 * (x * (y / (z * c)))
	elif t <= 6e-93:
		tmp = b * (1.0 / (z * c))
	else:
		tmp = a * ((t * -4.0) / c)
	return tmp
x, y, z, t, a, b, c = sort([x, y, z, t, a, b, c])
function code(x, y, z, t, a, b, c)
	tmp = 0.0
	if (t <= -1.45e+126)
		tmp = Float64(-4.0 * Float64(t * Float64(a / c)));
	elseif (t <= -4.6e-69)
		tmp = Float64(9.0 * Float64(x * Float64(y / Float64(z * c))));
	elseif (t <= 6e-93)
		tmp = Float64(b * Float64(1.0 / Float64(z * c)));
	else
		tmp = Float64(a * Float64(Float64(t * -4.0) / c));
	end
	return tmp
end
x, y, z, t, a, b, c = num2cell(sort([x, y, z, t, a, b, c])){:}
function tmp_2 = code(x, y, z, t, a, b, c)
	tmp = 0.0;
	if (t <= -1.45e+126)
		tmp = -4.0 * (t * (a / c));
	elseif (t <= -4.6e-69)
		tmp = 9.0 * (x * (y / (z * c)));
	elseif (t <= 6e-93)
		tmp = b * (1.0 / (z * c));
	else
		tmp = a * ((t * -4.0) / c);
	end
	tmp_2 = tmp;
end
NOTE: x, y, z, t, a, b, and c should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_, a_, b_, c_] := If[LessEqual[t, -1.45e+126], N[(-4.0 * N[(t * N[(a / c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[t, -4.6e-69], N[(9.0 * N[(x * N[(y / N[(z * c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[t, 6e-93], N[(b * N[(1.0 / N[(z * c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(a * N[(N[(t * -4.0), $MachinePrecision] / c), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}
[x, y, z, t, a, b, c] = \mathsf{sort}([x, y, z, t, a, b, c])\\
\\
\begin{array}{l}
\mathbf{if}\;t \leq -1.45 \cdot 10^{+126}:\\
\;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c}\right)\\

\mathbf{elif}\;t \leq -4.6 \cdot 10^{-69}:\\
\;\;\;\;9 \cdot \left(x \cdot \frac{y}{z \cdot c}\right)\\

\mathbf{elif}\;t \leq 6 \cdot 10^{-93}:\\
\;\;\;\;b \cdot \frac{1}{z \cdot c}\\

\mathbf{else}:\\
\;\;\;\;a \cdot \frac{t \cdot -4}{c}\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if t < -1.44999999999999993e126

    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. associate-+l-70.3%

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

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)} - b\right)}{z \cdot c} \]
      3. associate-*r*76.3%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t} - b\right)}{z \cdot c} \]
      4. *-commutative76.3%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t - b\right)}{z \cdot c} \]
      5. associate-+l-76.3%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      6. associate-*l*76.3%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      7. associate-*l*67.7%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      8. *-commutative67.7%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified67.7%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 70.6%

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

      \[\leadsto \color{blue}{-4 \cdot \frac{a \cdot t}{c}} \]
    7. Step-by-step derivation
      1. associate-*l/67.9%

        \[\leadsto -4 \cdot \color{blue}{\left(\frac{a}{c} \cdot t\right)} \]
    8. Simplified67.9%

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

    if -1.44999999999999993e126 < t < -4.6000000000000001e-69

    1. Initial program 85.4%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. associate-+l-85.4%

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

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

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

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

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

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      7. associate-*l*81.1%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      8. *-commutative81.1%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified81.1%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 53.3%

      \[\leadsto \color{blue}{9 \cdot \frac{x \cdot y}{c \cdot z}} \]
    6. Step-by-step derivation
      1. associate-/l*53.3%

        \[\leadsto 9 \cdot \color{blue}{\left(x \cdot \frac{y}{c \cdot z}\right)} \]
      2. *-commutative53.3%

        \[\leadsto 9 \cdot \left(x \cdot \frac{y}{\color{blue}{z \cdot c}}\right) \]
    7. Simplified53.3%

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

    if -4.6000000000000001e-69 < t < 6.0000000000000003e-93

    1. Initial program 87.5%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. associate-+l-87.5%

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

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

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

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

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      6. associate-*l*87.4%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      7. associate-*l*88.5%

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

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified88.5%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in b around inf 47.7%

      \[\leadsto \color{blue}{\frac{b}{c \cdot z}} \]
    6. Step-by-step derivation
      1. *-commutative47.7%

        \[\leadsto \frac{b}{\color{blue}{z \cdot c}} \]
    7. Simplified47.7%

      \[\leadsto \color{blue}{\frac{b}{z \cdot c}} \]
    8. Step-by-step derivation
      1. div-inv47.5%

        \[\leadsto \color{blue}{b \cdot \frac{1}{z \cdot c}} \]
    9. Applied egg-rr47.5%

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

    if 6.0000000000000003e-93 < t

    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. associate-+l-72.7%

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

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)} - b\right)}{z \cdot c} \]
      3. associate-*r*76.1%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t} - b\right)}{z \cdot c} \]
      4. *-commutative76.1%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t - b\right)}{z \cdot c} \]
      5. associate-+l-76.1%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      6. associate-*l*76.1%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      7. associate-*l*75.0%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      8. *-commutative75.0%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified75.0%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around inf 47.5%

      \[\leadsto \color{blue}{-4 \cdot \frac{a \cdot t}{c}} \]
    6. Step-by-step derivation
      1. *-commutative47.5%

        \[\leadsto \color{blue}{\frac{a \cdot t}{c} \cdot -4} \]
      2. associate-/l*48.7%

        \[\leadsto \color{blue}{\left(a \cdot \frac{t}{c}\right)} \cdot -4 \]
      3. associate-*r*48.7%

        \[\leadsto \color{blue}{a \cdot \left(\frac{t}{c} \cdot -4\right)} \]
      4. associate-*l/48.7%

        \[\leadsto a \cdot \color{blue}{\frac{t \cdot -4}{c}} \]
    7. Simplified48.7%

      \[\leadsto \color{blue}{a \cdot \frac{t \cdot -4}{c}} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification51.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -1.45 \cdot 10^{+126}:\\ \;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c}\right)\\ \mathbf{elif}\;t \leq -4.6 \cdot 10^{-69}:\\ \;\;\;\;9 \cdot \left(x \cdot \frac{y}{z \cdot c}\right)\\ \mathbf{elif}\;t \leq 6 \cdot 10^{-93}:\\ \;\;\;\;b \cdot \frac{1}{z \cdot c}\\ \mathbf{else}:\\ \;\;\;\;a \cdot \frac{t \cdot -4}{c}\\ \end{array} \]
  5. Add Preprocessing

Alternative 7: 49.7% accurate, 0.9× speedup?

\[\begin{array}{l} [x, y, z, t, a, b, c] = \mathsf{sort}([x, y, z, t, a, b, c])\\ \\ \begin{array}{l} \mathbf{if}\;t \leq -2.15 \cdot 10^{+125}:\\ \;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c}\right)\\ \mathbf{elif}\;t \leq -1.66 \cdot 10^{-71}:\\ \;\;\;\;9 \cdot \left(\frac{y}{z} \cdot \frac{x}{c}\right)\\ \mathbf{elif}\;t \leq 6.5 \cdot 10^{-93}:\\ \;\;\;\;b \cdot \frac{1}{z \cdot c}\\ \mathbf{else}:\\ \;\;\;\;a \cdot \frac{t \cdot -4}{c}\\ \end{array} \end{array} \]
NOTE: x, y, z, t, a, b, and c should be sorted in increasing order before calling this function.
(FPCore (x y z t a b c)
 :precision binary64
 (if (<= t -2.15e+125)
   (* -4.0 (* t (/ a c)))
   (if (<= t -1.66e-71)
     (* 9.0 (* (/ y z) (/ x c)))
     (if (<= t 6.5e-93) (* b (/ 1.0 (* z c))) (* a (/ (* t -4.0) c))))))
assert(x < y && y < z && z < t && t < a && a < b && b < c);
double code(double x, double y, double z, double t, double a, double b, double c) {
	double tmp;
	if (t <= -2.15e+125) {
		tmp = -4.0 * (t * (a / c));
	} else if (t <= -1.66e-71) {
		tmp = 9.0 * ((y / z) * (x / c));
	} else if (t <= 6.5e-93) {
		tmp = b * (1.0 / (z * c));
	} else {
		tmp = a * ((t * -4.0) / c);
	}
	return tmp;
}
NOTE: x, y, z, t, a, b, and c should be sorted in increasing order before calling this function.
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) :: tmp
    if (t <= (-2.15d+125)) then
        tmp = (-4.0d0) * (t * (a / c))
    else if (t <= (-1.66d-71)) then
        tmp = 9.0d0 * ((y / z) * (x / c))
    else if (t <= 6.5d-93) then
        tmp = b * (1.0d0 / (z * c))
    else
        tmp = a * ((t * (-4.0d0)) / c)
    end if
    code = tmp
end function
assert x < y && y < z && z < t && t < a && a < b && b < c;
public static double code(double x, double y, double z, double t, double a, double b, double c) {
	double tmp;
	if (t <= -2.15e+125) {
		tmp = -4.0 * (t * (a / c));
	} else if (t <= -1.66e-71) {
		tmp = 9.0 * ((y / z) * (x / c));
	} else if (t <= 6.5e-93) {
		tmp = b * (1.0 / (z * c));
	} else {
		tmp = a * ((t * -4.0) / c);
	}
	return tmp;
}
[x, y, z, t, a, b, c] = sort([x, y, z, t, a, b, c])
def code(x, y, z, t, a, b, c):
	tmp = 0
	if t <= -2.15e+125:
		tmp = -4.0 * (t * (a / c))
	elif t <= -1.66e-71:
		tmp = 9.0 * ((y / z) * (x / c))
	elif t <= 6.5e-93:
		tmp = b * (1.0 / (z * c))
	else:
		tmp = a * ((t * -4.0) / c)
	return tmp
x, y, z, t, a, b, c = sort([x, y, z, t, a, b, c])
function code(x, y, z, t, a, b, c)
	tmp = 0.0
	if (t <= -2.15e+125)
		tmp = Float64(-4.0 * Float64(t * Float64(a / c)));
	elseif (t <= -1.66e-71)
		tmp = Float64(9.0 * Float64(Float64(y / z) * Float64(x / c)));
	elseif (t <= 6.5e-93)
		tmp = Float64(b * Float64(1.0 / Float64(z * c)));
	else
		tmp = Float64(a * Float64(Float64(t * -4.0) / c));
	end
	return tmp
end
x, y, z, t, a, b, c = num2cell(sort([x, y, z, t, a, b, c])){:}
function tmp_2 = code(x, y, z, t, a, b, c)
	tmp = 0.0;
	if (t <= -2.15e+125)
		tmp = -4.0 * (t * (a / c));
	elseif (t <= -1.66e-71)
		tmp = 9.0 * ((y / z) * (x / c));
	elseif (t <= 6.5e-93)
		tmp = b * (1.0 / (z * c));
	else
		tmp = a * ((t * -4.0) / c);
	end
	tmp_2 = tmp;
end
NOTE: x, y, z, t, a, b, and c should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_, a_, b_, c_] := If[LessEqual[t, -2.15e+125], N[(-4.0 * N[(t * N[(a / c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[t, -1.66e-71], N[(9.0 * N[(N[(y / z), $MachinePrecision] * N[(x / c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[t, 6.5e-93], N[(b * N[(1.0 / N[(z * c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(a * N[(N[(t * -4.0), $MachinePrecision] / c), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}
[x, y, z, t, a, b, c] = \mathsf{sort}([x, y, z, t, a, b, c])\\
\\
\begin{array}{l}
\mathbf{if}\;t \leq -2.15 \cdot 10^{+125}:\\
\;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c}\right)\\

\mathbf{elif}\;t \leq -1.66 \cdot 10^{-71}:\\
\;\;\;\;9 \cdot \left(\frac{y}{z} \cdot \frac{x}{c}\right)\\

\mathbf{elif}\;t \leq 6.5 \cdot 10^{-93}:\\
\;\;\;\;b \cdot \frac{1}{z \cdot c}\\

\mathbf{else}:\\
\;\;\;\;a \cdot \frac{t \cdot -4}{c}\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if t < -2.15000000000000018e125

    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. associate-+l-70.3%

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

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)} - b\right)}{z \cdot c} \]
      3. associate-*r*76.3%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t} - b\right)}{z \cdot c} \]
      4. *-commutative76.3%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t - b\right)}{z \cdot c} \]
      5. associate-+l-76.3%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      6. associate-*l*76.3%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      7. associate-*l*67.7%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      8. *-commutative67.7%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified67.7%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 70.6%

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

      \[\leadsto \color{blue}{-4 \cdot \frac{a \cdot t}{c}} \]
    7. Step-by-step derivation
      1. associate-*l/67.9%

        \[\leadsto -4 \cdot \color{blue}{\left(\frac{a}{c} \cdot t\right)} \]
    8. Simplified67.9%

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

    if -2.15000000000000018e125 < t < -1.6599999999999999e-71

    1. Initial program 85.7%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. associate-+l-85.7%

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

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

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

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

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      6. associate-*l*85.6%

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

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

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified81.5%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 52.1%

      \[\leadsto \color{blue}{9 \cdot \frac{x \cdot y}{c \cdot z}} \]
    6. Step-by-step derivation
      1. times-frac56.3%

        \[\leadsto 9 \cdot \color{blue}{\left(\frac{x}{c} \cdot \frac{y}{z}\right)} \]
    7. Applied egg-rr56.3%

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

    if -1.6599999999999999e-71 < t < 6.5e-93

    1. Initial program 87.3%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. associate-+l-87.3%

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

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)} - b\right)}{z \cdot c} \]
      3. associate-*r*86.2%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t} - b\right)}{z \cdot c} \]
      4. *-commutative86.2%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t - b\right)}{z \cdot c} \]
      5. associate-+l-86.2%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      6. associate-*l*87.2%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      7. associate-*l*88.3%

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

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

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in b around inf 47.1%

      \[\leadsto \color{blue}{\frac{b}{c \cdot z}} \]
    6. Step-by-step derivation
      1. *-commutative47.1%

        \[\leadsto \frac{b}{\color{blue}{z \cdot c}} \]
    7. Simplified47.1%

      \[\leadsto \color{blue}{\frac{b}{z \cdot c}} \]
    8. Step-by-step derivation
      1. div-inv46.9%

        \[\leadsto \color{blue}{b \cdot \frac{1}{z \cdot c}} \]
    9. Applied egg-rr46.9%

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

    if 6.5e-93 < t

    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. associate-+l-72.7%

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

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)} - b\right)}{z \cdot c} \]
      3. associate-*r*76.1%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t} - b\right)}{z \cdot c} \]
      4. *-commutative76.1%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t - b\right)}{z \cdot c} \]
      5. associate-+l-76.1%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      6. associate-*l*76.1%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      7. associate-*l*75.0%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      8. *-commutative75.0%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified75.0%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around inf 47.5%

      \[\leadsto \color{blue}{-4 \cdot \frac{a \cdot t}{c}} \]
    6. Step-by-step derivation
      1. *-commutative47.5%

        \[\leadsto \color{blue}{\frac{a \cdot t}{c} \cdot -4} \]
      2. associate-/l*48.7%

        \[\leadsto \color{blue}{\left(a \cdot \frac{t}{c}\right)} \cdot -4 \]
      3. associate-*r*48.7%

        \[\leadsto \color{blue}{a \cdot \left(\frac{t}{c} \cdot -4\right)} \]
      4. associate-*l/48.7%

        \[\leadsto a \cdot \color{blue}{\frac{t \cdot -4}{c}} \]
    7. Simplified48.7%

      \[\leadsto \color{blue}{a \cdot \frac{t \cdot -4}{c}} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification51.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -2.15 \cdot 10^{+125}:\\ \;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c}\right)\\ \mathbf{elif}\;t \leq -1.66 \cdot 10^{-71}:\\ \;\;\;\;9 \cdot \left(\frac{y}{z} \cdot \frac{x}{c}\right)\\ \mathbf{elif}\;t \leq 6.5 \cdot 10^{-93}:\\ \;\;\;\;b \cdot \frac{1}{z \cdot c}\\ \mathbf{else}:\\ \;\;\;\;a \cdot \frac{t \cdot -4}{c}\\ \end{array} \]
  5. Add Preprocessing

Alternative 8: 49.7% accurate, 0.9× speedup?

\[\begin{array}{l} [x, y, z, t, a, b, c] = \mathsf{sort}([x, y, z, t, a, b, c])\\ \\ \begin{array}{l} \mathbf{if}\;t \leq -4.5 \cdot 10^{+147}:\\ \;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c}\right)\\ \mathbf{elif}\;t \leq -3.6 \cdot 10^{-70}:\\ \;\;\;\;9 \cdot \frac{y}{z \cdot \frac{c}{x}}\\ \mathbf{elif}\;t \leq 5.8 \cdot 10^{-93}:\\ \;\;\;\;b \cdot \frac{1}{z \cdot c}\\ \mathbf{else}:\\ \;\;\;\;a \cdot \frac{t \cdot -4}{c}\\ \end{array} \end{array} \]
NOTE: x, y, z, t, a, b, and c should be sorted in increasing order before calling this function.
(FPCore (x y z t a b c)
 :precision binary64
 (if (<= t -4.5e+147)
   (* -4.0 (* t (/ a c)))
   (if (<= t -3.6e-70)
     (* 9.0 (/ y (* z (/ c x))))
     (if (<= t 5.8e-93) (* b (/ 1.0 (* z c))) (* a (/ (* t -4.0) c))))))
assert(x < y && y < z && z < t && t < a && a < b && b < c);
double code(double x, double y, double z, double t, double a, double b, double c) {
	double tmp;
	if (t <= -4.5e+147) {
		tmp = -4.0 * (t * (a / c));
	} else if (t <= -3.6e-70) {
		tmp = 9.0 * (y / (z * (c / x)));
	} else if (t <= 5.8e-93) {
		tmp = b * (1.0 / (z * c));
	} else {
		tmp = a * ((t * -4.0) / c);
	}
	return tmp;
}
NOTE: x, y, z, t, a, b, and c should be sorted in increasing order before calling this function.
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) :: tmp
    if (t <= (-4.5d+147)) then
        tmp = (-4.0d0) * (t * (a / c))
    else if (t <= (-3.6d-70)) then
        tmp = 9.0d0 * (y / (z * (c / x)))
    else if (t <= 5.8d-93) then
        tmp = b * (1.0d0 / (z * c))
    else
        tmp = a * ((t * (-4.0d0)) / c)
    end if
    code = tmp
end function
assert x < y && y < z && z < t && t < a && a < b && b < c;
public static double code(double x, double y, double z, double t, double a, double b, double c) {
	double tmp;
	if (t <= -4.5e+147) {
		tmp = -4.0 * (t * (a / c));
	} else if (t <= -3.6e-70) {
		tmp = 9.0 * (y / (z * (c / x)));
	} else if (t <= 5.8e-93) {
		tmp = b * (1.0 / (z * c));
	} else {
		tmp = a * ((t * -4.0) / c);
	}
	return tmp;
}
[x, y, z, t, a, b, c] = sort([x, y, z, t, a, b, c])
def code(x, y, z, t, a, b, c):
	tmp = 0
	if t <= -4.5e+147:
		tmp = -4.0 * (t * (a / c))
	elif t <= -3.6e-70:
		tmp = 9.0 * (y / (z * (c / x)))
	elif t <= 5.8e-93:
		tmp = b * (1.0 / (z * c))
	else:
		tmp = a * ((t * -4.0) / c)
	return tmp
x, y, z, t, a, b, c = sort([x, y, z, t, a, b, c])
function code(x, y, z, t, a, b, c)
	tmp = 0.0
	if (t <= -4.5e+147)
		tmp = Float64(-4.0 * Float64(t * Float64(a / c)));
	elseif (t <= -3.6e-70)
		tmp = Float64(9.0 * Float64(y / Float64(z * Float64(c / x))));
	elseif (t <= 5.8e-93)
		tmp = Float64(b * Float64(1.0 / Float64(z * c)));
	else
		tmp = Float64(a * Float64(Float64(t * -4.0) / c));
	end
	return tmp
end
x, y, z, t, a, b, c = num2cell(sort([x, y, z, t, a, b, c])){:}
function tmp_2 = code(x, y, z, t, a, b, c)
	tmp = 0.0;
	if (t <= -4.5e+147)
		tmp = -4.0 * (t * (a / c));
	elseif (t <= -3.6e-70)
		tmp = 9.0 * (y / (z * (c / x)));
	elseif (t <= 5.8e-93)
		tmp = b * (1.0 / (z * c));
	else
		tmp = a * ((t * -4.0) / c);
	end
	tmp_2 = tmp;
end
NOTE: x, y, z, t, a, b, and c should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_, a_, b_, c_] := If[LessEqual[t, -4.5e+147], N[(-4.0 * N[(t * N[(a / c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[t, -3.6e-70], N[(9.0 * N[(y / N[(z * N[(c / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[t, 5.8e-93], N[(b * N[(1.0 / N[(z * c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(a * N[(N[(t * -4.0), $MachinePrecision] / c), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}
[x, y, z, t, a, b, c] = \mathsf{sort}([x, y, z, t, a, b, c])\\
\\
\begin{array}{l}
\mathbf{if}\;t \leq -4.5 \cdot 10^{+147}:\\
\;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c}\right)\\

\mathbf{elif}\;t \leq -3.6 \cdot 10^{-70}:\\
\;\;\;\;9 \cdot \frac{y}{z \cdot \frac{c}{x}}\\

\mathbf{elif}\;t \leq 5.8 \cdot 10^{-93}:\\
\;\;\;\;b \cdot \frac{1}{z \cdot c}\\

\mathbf{else}:\\
\;\;\;\;a \cdot \frac{t \cdot -4}{c}\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if t < -4.50000000000000008e147

    1. Initial program 68.4%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. associate-+l-68.4%

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

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)} - b\right)}{z \cdot c} \]
      3. associate-*r*74.8%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t} - b\right)}{z \cdot c} \]
      4. *-commutative74.8%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t - b\right)}{z \cdot c} \]
      5. associate-+l-74.8%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      6. associate-*l*74.8%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      7. associate-*l*68.7%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      8. *-commutative68.7%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified68.7%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 68.8%

      \[\leadsto \color{blue}{\frac{-4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c} + \left(9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}\right)}{z}} \]
    6. Taylor expanded in a around inf 63.0%

      \[\leadsto \color{blue}{-4 \cdot \frac{a \cdot t}{c}} \]
    7. Step-by-step derivation
      1. associate-*l/69.0%

        \[\leadsto -4 \cdot \color{blue}{\left(\frac{a}{c} \cdot t\right)} \]
    8. Simplified69.0%

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

    if -4.50000000000000008e147 < t < -3.6000000000000002e-70

    1. Initial program 86.0%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. associate-+l-86.0%

        \[\leadsto \frac{\color{blue}{\left(x \cdot 9\right) \cdot y - \left(\left(\left(z \cdot 4\right) \cdot t\right) \cdot a - b\right)}}{z \cdot c} \]
      2. *-commutative86.0%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)} - b\right)}{z \cdot c} \]
      3. associate-*r*86.0%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t} - b\right)}{z \cdot c} \]
      4. *-commutative86.0%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t - b\right)}{z \cdot c} \]
      5. associate-+l-86.0%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      6. associate-*l*85.9%

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

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

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

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 51.1%

      \[\leadsto \color{blue}{9 \cdot \frac{x \cdot y}{c \cdot z}} \]
    6. Step-by-step derivation
      1. times-frac55.2%

        \[\leadsto 9 \cdot \color{blue}{\left(\frac{x}{c} \cdot \frac{y}{z}\right)} \]
    7. Applied egg-rr55.2%

      \[\leadsto 9 \cdot \color{blue}{\left(\frac{x}{c} \cdot \frac{y}{z}\right)} \]
    8. Step-by-step derivation
      1. clear-num55.2%

        \[\leadsto 9 \cdot \left(\color{blue}{\frac{1}{\frac{c}{x}}} \cdot \frac{y}{z}\right) \]
      2. frac-times55.3%

        \[\leadsto 9 \cdot \color{blue}{\frac{1 \cdot y}{\frac{c}{x} \cdot z}} \]
      3. *-un-lft-identity55.3%

        \[\leadsto 9 \cdot \frac{\color{blue}{y}}{\frac{c}{x} \cdot z} \]
    9. Applied egg-rr55.3%

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

    if -3.6000000000000002e-70 < t < 5.7999999999999997e-93

    1. Initial program 87.5%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. associate-+l-87.5%

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

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

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

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

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      6. associate-*l*87.4%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      7. associate-*l*88.5%

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

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified88.5%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in b around inf 47.7%

      \[\leadsto \color{blue}{\frac{b}{c \cdot z}} \]
    6. Step-by-step derivation
      1. *-commutative47.7%

        \[\leadsto \frac{b}{\color{blue}{z \cdot c}} \]
    7. Simplified47.7%

      \[\leadsto \color{blue}{\frac{b}{z \cdot c}} \]
    8. Step-by-step derivation
      1. div-inv47.5%

        \[\leadsto \color{blue}{b \cdot \frac{1}{z \cdot c}} \]
    9. Applied egg-rr47.5%

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

    if 5.7999999999999997e-93 < t

    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. associate-+l-72.7%

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

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)} - b\right)}{z \cdot c} \]
      3. associate-*r*76.1%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t} - b\right)}{z \cdot c} \]
      4. *-commutative76.1%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t - b\right)}{z \cdot c} \]
      5. associate-+l-76.1%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      6. associate-*l*76.1%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      7. associate-*l*75.0%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      8. *-commutative75.0%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified75.0%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around inf 47.5%

      \[\leadsto \color{blue}{-4 \cdot \frac{a \cdot t}{c}} \]
    6. Step-by-step derivation
      1. *-commutative47.5%

        \[\leadsto \color{blue}{\frac{a \cdot t}{c} \cdot -4} \]
      2. associate-/l*48.7%

        \[\leadsto \color{blue}{\left(a \cdot \frac{t}{c}\right)} \cdot -4 \]
      3. associate-*r*48.7%

        \[\leadsto \color{blue}{a \cdot \left(\frac{t}{c} \cdot -4\right)} \]
      4. associate-*l/48.7%

        \[\leadsto a \cdot \color{blue}{\frac{t \cdot -4}{c}} \]
    7. Simplified48.7%

      \[\leadsto \color{blue}{a \cdot \frac{t \cdot -4}{c}} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification52.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -4.5 \cdot 10^{+147}:\\ \;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c}\right)\\ \mathbf{elif}\;t \leq -3.6 \cdot 10^{-70}:\\ \;\;\;\;9 \cdot \frac{y}{z \cdot \frac{c}{x}}\\ \mathbf{elif}\;t \leq 5.8 \cdot 10^{-93}:\\ \;\;\;\;b \cdot \frac{1}{z \cdot c}\\ \mathbf{else}:\\ \;\;\;\;a \cdot \frac{t \cdot -4}{c}\\ \end{array} \]
  5. Add Preprocessing

Alternative 9: 67.8% accurate, 0.9× speedup?

\[\begin{array}{l} [x, y, z, t, a, b, c] = \mathsf{sort}([x, y, z, t, a, b, c])\\ \\ \begin{array}{l} \mathbf{if}\;t \leq -2 \cdot 10^{+149} \lor \neg \left(t \leq 0.00068\right):\\ \;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{b + 9 \cdot \left(x \cdot y\right)}{z \cdot c}\\ \end{array} \end{array} \]
NOTE: x, y, z, t, a, b, and c should be sorted in increasing order before calling this function.
(FPCore (x y z t a b c)
 :precision binary64
 (if (or (<= t -2e+149) (not (<= t 0.00068)))
   (* -4.0 (* t (/ a c)))
   (/ (+ b (* 9.0 (* x y))) (* z c))))
assert(x < y && y < z && z < t && t < a && a < b && b < c);
double code(double x, double y, double z, double t, double a, double b, double c) {
	double tmp;
	if ((t <= -2e+149) || !(t <= 0.00068)) {
		tmp = -4.0 * (t * (a / c));
	} else {
		tmp = (b + (9.0 * (x * y))) / (z * c);
	}
	return tmp;
}
NOTE: x, y, z, t, a, b, and c should be sorted in increasing order before calling this function.
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) :: tmp
    if ((t <= (-2d+149)) .or. (.not. (t <= 0.00068d0))) then
        tmp = (-4.0d0) * (t * (a / c))
    else
        tmp = (b + (9.0d0 * (x * y))) / (z * c)
    end if
    code = tmp
end function
assert x < y && y < z && z < t && t < a && a < b && b < c;
public static double code(double x, double y, double z, double t, double a, double b, double c) {
	double tmp;
	if ((t <= -2e+149) || !(t <= 0.00068)) {
		tmp = -4.0 * (t * (a / c));
	} else {
		tmp = (b + (9.0 * (x * y))) / (z * c);
	}
	return tmp;
}
[x, y, z, t, a, b, c] = sort([x, y, z, t, a, b, c])
def code(x, y, z, t, a, b, c):
	tmp = 0
	if (t <= -2e+149) or not (t <= 0.00068):
		tmp = -4.0 * (t * (a / c))
	else:
		tmp = (b + (9.0 * (x * y))) / (z * c)
	return tmp
x, y, z, t, a, b, c = sort([x, y, z, t, a, b, c])
function code(x, y, z, t, a, b, c)
	tmp = 0.0
	if ((t <= -2e+149) || !(t <= 0.00068))
		tmp = Float64(-4.0 * Float64(t * Float64(a / c)));
	else
		tmp = Float64(Float64(b + Float64(9.0 * Float64(x * y))) / Float64(z * c));
	end
	return tmp
end
x, y, z, t, a, b, c = num2cell(sort([x, y, z, t, a, b, c])){:}
function tmp_2 = code(x, y, z, t, a, b, c)
	tmp = 0.0;
	if ((t <= -2e+149) || ~((t <= 0.00068)))
		tmp = -4.0 * (t * (a / c));
	else
		tmp = (b + (9.0 * (x * y))) / (z * c);
	end
	tmp_2 = tmp;
end
NOTE: x, y, z, t, a, b, and c should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_, a_, b_, c_] := If[Or[LessEqual[t, -2e+149], N[Not[LessEqual[t, 0.00068]], $MachinePrecision]], N[(-4.0 * N[(t * N[(a / c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(b + N[(9.0 * N[(x * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(z * c), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
[x, y, z, t, a, b, c] = \mathsf{sort}([x, y, z, t, a, b, c])\\
\\
\begin{array}{l}
\mathbf{if}\;t \leq -2 \cdot 10^{+149} \lor \neg \left(t \leq 0.00068\right):\\
\;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c}\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if t < -2.0000000000000001e149 or 6.8e-4 < t

    1. Initial program 68.4%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. associate-+l-68.4%

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

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)} - b\right)}{z \cdot c} \]
      3. associate-*r*74.6%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t} - b\right)}{z \cdot c} \]
      4. *-commutative74.6%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t - b\right)}{z \cdot c} \]
      5. associate-+l-74.6%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      6. associate-*l*74.5%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      7. associate-*l*70.5%

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

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified70.5%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 67.6%

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

      \[\leadsto \color{blue}{-4 \cdot \frac{a \cdot t}{c}} \]
    7. Step-by-step derivation
      1. associate-*l/61.8%

        \[\leadsto -4 \cdot \color{blue}{\left(\frac{a}{c} \cdot t\right)} \]
    8. Simplified61.8%

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

    if -2.0000000000000001e149 < t < 6.8e-4

    1. Initial program 86.9%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. associate-+l-86.9%

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

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)} - b\right)}{z \cdot c} \]
      3. associate-*r*85.6%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t} - b\right)}{z \cdot c} \]
      4. *-commutative85.6%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t - b\right)}{z \cdot c} \]
      5. associate-+l-85.6%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      6. associate-*l*86.2%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      7. associate-*l*85.6%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      8. *-commutative85.6%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified85.6%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 78.4%

      \[\leadsto \color{blue}{\frac{b + 9 \cdot \left(x \cdot y\right)}{c \cdot z}} \]
    6. Step-by-step derivation
      1. *-commutative78.4%

        \[\leadsto \frac{b + 9 \cdot \left(x \cdot y\right)}{\color{blue}{z \cdot c}} \]
    7. Simplified78.4%

      \[\leadsto \color{blue}{\frac{b + 9 \cdot \left(x \cdot y\right)}{z \cdot c}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification72.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -2 \cdot 10^{+149} \lor \neg \left(t \leq 0.00068\right):\\ \;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{b + 9 \cdot \left(x \cdot y\right)}{z \cdot c}\\ \end{array} \]
  5. Add Preprocessing

Alternative 10: 48.6% accurate, 1.1× speedup?

\[\begin{array}{l} [x, y, z, t, a, b, c] = \mathsf{sort}([x, y, z, t, a, b, c])\\ \\ \begin{array}{l} \mathbf{if}\;t \leq -2 \cdot 10^{+158} \lor \neg \left(t \leq 6.2 \cdot 10^{-93}\right):\\ \;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{\frac{b}{c}}{z}\\ \end{array} \end{array} \]
NOTE: x, y, z, t, a, b, and c should be sorted in increasing order before calling this function.
(FPCore (x y z t a b c)
 :precision binary64
 (if (or (<= t -2e+158) (not (<= t 6.2e-93)))
   (* -4.0 (* t (/ a c)))
   (/ (/ b c) z)))
assert(x < y && y < z && z < t && t < a && a < b && b < c);
double code(double x, double y, double z, double t, double a, double b, double c) {
	double tmp;
	if ((t <= -2e+158) || !(t <= 6.2e-93)) {
		tmp = -4.0 * (t * (a / c));
	} else {
		tmp = (b / c) / z;
	}
	return tmp;
}
NOTE: x, y, z, t, a, b, and c should be sorted in increasing order before calling this function.
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) :: tmp
    if ((t <= (-2d+158)) .or. (.not. (t <= 6.2d-93))) then
        tmp = (-4.0d0) * (t * (a / c))
    else
        tmp = (b / c) / z
    end if
    code = tmp
end function
assert x < y && y < z && z < t && t < a && a < b && b < c;
public static double code(double x, double y, double z, double t, double a, double b, double c) {
	double tmp;
	if ((t <= -2e+158) || !(t <= 6.2e-93)) {
		tmp = -4.0 * (t * (a / c));
	} else {
		tmp = (b / c) / z;
	}
	return tmp;
}
[x, y, z, t, a, b, c] = sort([x, y, z, t, a, b, c])
def code(x, y, z, t, a, b, c):
	tmp = 0
	if (t <= -2e+158) or not (t <= 6.2e-93):
		tmp = -4.0 * (t * (a / c))
	else:
		tmp = (b / c) / z
	return tmp
x, y, z, t, a, b, c = sort([x, y, z, t, a, b, c])
function code(x, y, z, t, a, b, c)
	tmp = 0.0
	if ((t <= -2e+158) || !(t <= 6.2e-93))
		tmp = Float64(-4.0 * Float64(t * Float64(a / c)));
	else
		tmp = Float64(Float64(b / c) / z);
	end
	return tmp
end
x, y, z, t, a, b, c = num2cell(sort([x, y, z, t, a, b, c])){:}
function tmp_2 = code(x, y, z, t, a, b, c)
	tmp = 0.0;
	if ((t <= -2e+158) || ~((t <= 6.2e-93)))
		tmp = -4.0 * (t * (a / c));
	else
		tmp = (b / c) / z;
	end
	tmp_2 = tmp;
end
NOTE: x, y, z, t, a, b, and c should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_, a_, b_, c_] := If[Or[LessEqual[t, -2e+158], N[Not[LessEqual[t, 6.2e-93]], $MachinePrecision]], N[(-4.0 * N[(t * N[(a / c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(b / c), $MachinePrecision] / z), $MachinePrecision]]
\begin{array}{l}
[x, y, z, t, a, b, c] = \mathsf{sort}([x, y, z, t, a, b, c])\\
\\
\begin{array}{l}
\mathbf{if}\;t \leq -2 \cdot 10^{+158} \lor \neg \left(t \leq 6.2 \cdot 10^{-93}\right):\\
\;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c}\right)\\

\mathbf{else}:\\
\;\;\;\;\frac{\frac{b}{c}}{z}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if t < -1.99999999999999991e158 or 6.19999999999999999e-93 < t

    1. Initial program 71.9%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. associate-+l-71.9%

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

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)} - b\right)}{z \cdot c} \]
      3. associate-*r*76.2%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t} - b\right)}{z \cdot c} \]
      4. *-commutative76.2%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t - b\right)}{z \cdot c} \]
      5. associate-+l-76.2%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      6. associate-*l*76.2%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      7. associate-*l*73.7%

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

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified73.7%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 70.4%

      \[\leadsto \color{blue}{\frac{-4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c} + \left(9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}\right)}{z}} \]
    6. Taylor expanded in a around inf 52.5%

      \[\leadsto \color{blue}{-4 \cdot \frac{a \cdot t}{c}} \]
    7. Step-by-step derivation
      1. associate-*l/54.5%

        \[\leadsto -4 \cdot \color{blue}{\left(\frac{a}{c} \cdot t\right)} \]
    8. Simplified54.5%

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

    if -1.99999999999999991e158 < t < 6.19999999999999999e-93

    1. Initial program 86.5%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. associate-+l-86.5%

        \[\leadsto \frac{\color{blue}{\left(x \cdot 9\right) \cdot y - \left(\left(\left(z \cdot 4\right) \cdot t\right) \cdot a - b\right)}}{z \cdot c} \]
      2. *-commutative86.5%

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

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

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

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

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      7. associate-*l*85.0%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      8. *-commutative85.0%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified85.0%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 78.4%

      \[\leadsto \frac{\color{blue}{y \cdot \left(\left(9 \cdot x + \frac{b}{y}\right) - 4 \cdot \frac{a \cdot \left(t \cdot z\right)}{y}\right)}}{z \cdot c} \]
    6. Step-by-step derivation
      1. associate--l+78.4%

        \[\leadsto \frac{y \cdot \color{blue}{\left(9 \cdot x + \left(\frac{b}{y} - 4 \cdot \frac{a \cdot \left(t \cdot z\right)}{y}\right)\right)}}{z \cdot c} \]
      2. associate-*r/78.4%

        \[\leadsto \frac{y \cdot \left(9 \cdot x + \left(\frac{b}{y} - \color{blue}{\frac{4 \cdot \left(a \cdot \left(t \cdot z\right)\right)}{y}}\right)\right)}{z \cdot c} \]
      3. div-sub78.4%

        \[\leadsto \frac{y \cdot \left(9 \cdot x + \color{blue}{\frac{b - 4 \cdot \left(a \cdot \left(t \cdot z\right)\right)}{y}}\right)}{z \cdot c} \]
      4. cancel-sign-sub-inv78.4%

        \[\leadsto \frac{y \cdot \left(9 \cdot x + \frac{\color{blue}{b + \left(-4\right) \cdot \left(a \cdot \left(t \cdot z\right)\right)}}{y}\right)}{z \cdot c} \]
      5. metadata-eval78.4%

        \[\leadsto \frac{y \cdot \left(9 \cdot x + \frac{b + \color{blue}{-4} \cdot \left(a \cdot \left(t \cdot z\right)\right)}{y}\right)}{z \cdot c} \]
    7. Simplified78.4%

      \[\leadsto \frac{\color{blue}{y \cdot \left(9 \cdot x + \frac{b + -4 \cdot \left(a \cdot \left(t \cdot z\right)\right)}{y}\right)}}{z \cdot c} \]
    8. Taylor expanded in z around 0 82.4%

      \[\leadsto \color{blue}{\frac{-4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c} + \frac{y \cdot \left(9 \cdot x + \frac{b}{y}\right)}{c}}{z}} \]
    9. Taylor expanded in b around inf 44.1%

      \[\leadsto \color{blue}{\frac{b}{c \cdot z}} \]
    10. Step-by-step derivation
      1. associate-/r*44.4%

        \[\leadsto \color{blue}{\frac{\frac{b}{c}}{z}} \]
    11. Simplified44.4%

      \[\leadsto \color{blue}{\frac{\frac{b}{c}}{z}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification49.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -2 \cdot 10^{+158} \lor \neg \left(t \leq 6.2 \cdot 10^{-93}\right):\\ \;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{\frac{b}{c}}{z}\\ \end{array} \]
  5. Add Preprocessing

Alternative 11: 48.5% accurate, 1.1× speedup?

\[\begin{array}{l} [x, y, z, t, a, b, c] = \mathsf{sort}([x, y, z, t, a, b, c])\\ \\ \begin{array}{l} \mathbf{if}\;t \leq -1.9 \cdot 10^{+159}:\\ \;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c}\right)\\ \mathbf{elif}\;t \leq 7 \cdot 10^{-93}:\\ \;\;\;\;\frac{\frac{b}{c}}{z}\\ \mathbf{else}:\\ \;\;\;\;a \cdot \frac{t \cdot -4}{c}\\ \end{array} \end{array} \]
NOTE: x, y, z, t, a, b, and c should be sorted in increasing order before calling this function.
(FPCore (x y z t a b c)
 :precision binary64
 (if (<= t -1.9e+159)
   (* -4.0 (* t (/ a c)))
   (if (<= t 7e-93) (/ (/ b c) z) (* a (/ (* t -4.0) c)))))
assert(x < y && y < z && z < t && t < a && a < b && b < c);
double code(double x, double y, double z, double t, double a, double b, double c) {
	double tmp;
	if (t <= -1.9e+159) {
		tmp = -4.0 * (t * (a / c));
	} else if (t <= 7e-93) {
		tmp = (b / c) / z;
	} else {
		tmp = a * ((t * -4.0) / c);
	}
	return tmp;
}
NOTE: x, y, z, t, a, b, and c should be sorted in increasing order before calling this function.
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) :: tmp
    if (t <= (-1.9d+159)) then
        tmp = (-4.0d0) * (t * (a / c))
    else if (t <= 7d-93) then
        tmp = (b / c) / z
    else
        tmp = a * ((t * (-4.0d0)) / c)
    end if
    code = tmp
end function
assert x < y && y < z && z < t && t < a && a < b && b < c;
public static double code(double x, double y, double z, double t, double a, double b, double c) {
	double tmp;
	if (t <= -1.9e+159) {
		tmp = -4.0 * (t * (a / c));
	} else if (t <= 7e-93) {
		tmp = (b / c) / z;
	} else {
		tmp = a * ((t * -4.0) / c);
	}
	return tmp;
}
[x, y, z, t, a, b, c] = sort([x, y, z, t, a, b, c])
def code(x, y, z, t, a, b, c):
	tmp = 0
	if t <= -1.9e+159:
		tmp = -4.0 * (t * (a / c))
	elif t <= 7e-93:
		tmp = (b / c) / z
	else:
		tmp = a * ((t * -4.0) / c)
	return tmp
x, y, z, t, a, b, c = sort([x, y, z, t, a, b, c])
function code(x, y, z, t, a, b, c)
	tmp = 0.0
	if (t <= -1.9e+159)
		tmp = Float64(-4.0 * Float64(t * Float64(a / c)));
	elseif (t <= 7e-93)
		tmp = Float64(Float64(b / c) / z);
	else
		tmp = Float64(a * Float64(Float64(t * -4.0) / c));
	end
	return tmp
end
x, y, z, t, a, b, c = num2cell(sort([x, y, z, t, a, b, c])){:}
function tmp_2 = code(x, y, z, t, a, b, c)
	tmp = 0.0;
	if (t <= -1.9e+159)
		tmp = -4.0 * (t * (a / c));
	elseif (t <= 7e-93)
		tmp = (b / c) / z;
	else
		tmp = a * ((t * -4.0) / c);
	end
	tmp_2 = tmp;
end
NOTE: x, y, z, t, a, b, and c should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_, a_, b_, c_] := If[LessEqual[t, -1.9e+159], N[(-4.0 * N[(t * N[(a / c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[t, 7e-93], N[(N[(b / c), $MachinePrecision] / z), $MachinePrecision], N[(a * N[(N[(t * -4.0), $MachinePrecision] / c), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
[x, y, z, t, a, b, c] = \mathsf{sort}([x, y, z, t, a, b, c])\\
\\
\begin{array}{l}
\mathbf{if}\;t \leq -1.9 \cdot 10^{+159}:\\
\;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c}\right)\\

\mathbf{elif}\;t \leq 7 \cdot 10^{-93}:\\
\;\;\;\;\frac{\frac{b}{c}}{z}\\

\mathbf{else}:\\
\;\;\;\;a \cdot \frac{t \cdot -4}{c}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if t < -1.89999999999999983e159

    1. Initial program 69.6%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. associate-+l-69.6%

        \[\leadsto \frac{\color{blue}{\left(x \cdot 9\right) \cdot y - \left(\left(\left(z \cdot 4\right) \cdot t\right) \cdot a - b\right)}}{z \cdot c} \]
      2. *-commutative69.6%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)} - b\right)}{z \cdot c} \]
      3. associate-*r*76.4%

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

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t - b\right)}{z \cdot c} \]
      5. associate-+l-76.4%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      6. associate-*l*76.4%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      7. associate-*l*69.9%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      8. *-commutative69.9%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified69.9%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 66.6%

      \[\leadsto \color{blue}{\frac{-4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c} + \left(9 \cdot \frac{x \cdot y}{c} + \frac{b}{c}\right)}{z}} \]
    6. Taylor expanded in a around inf 67.1%

      \[\leadsto \color{blue}{-4 \cdot \frac{a \cdot t}{c}} \]
    7. Step-by-step derivation
      1. associate-*l/73.4%

        \[\leadsto -4 \cdot \color{blue}{\left(\frac{a}{c} \cdot t\right)} \]
    8. Simplified73.4%

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

    if -1.89999999999999983e159 < t < 7e-93

    1. Initial program 86.5%

      \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
    2. Step-by-step derivation
      1. associate-+l-86.5%

        \[\leadsto \frac{\color{blue}{\left(x \cdot 9\right) \cdot y - \left(\left(\left(z \cdot 4\right) \cdot t\right) \cdot a - b\right)}}{z \cdot c} \]
      2. *-commutative86.5%

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

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

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

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

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      7. associate-*l*85.0%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      8. *-commutative85.0%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified85.0%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 78.4%

      \[\leadsto \frac{\color{blue}{y \cdot \left(\left(9 \cdot x + \frac{b}{y}\right) - 4 \cdot \frac{a \cdot \left(t \cdot z\right)}{y}\right)}}{z \cdot c} \]
    6. Step-by-step derivation
      1. associate--l+78.4%

        \[\leadsto \frac{y \cdot \color{blue}{\left(9 \cdot x + \left(\frac{b}{y} - 4 \cdot \frac{a \cdot \left(t \cdot z\right)}{y}\right)\right)}}{z \cdot c} \]
      2. associate-*r/78.4%

        \[\leadsto \frac{y \cdot \left(9 \cdot x + \left(\frac{b}{y} - \color{blue}{\frac{4 \cdot \left(a \cdot \left(t \cdot z\right)\right)}{y}}\right)\right)}{z \cdot c} \]
      3. div-sub78.4%

        \[\leadsto \frac{y \cdot \left(9 \cdot x + \color{blue}{\frac{b - 4 \cdot \left(a \cdot \left(t \cdot z\right)\right)}{y}}\right)}{z \cdot c} \]
      4. cancel-sign-sub-inv78.4%

        \[\leadsto \frac{y \cdot \left(9 \cdot x + \frac{\color{blue}{b + \left(-4\right) \cdot \left(a \cdot \left(t \cdot z\right)\right)}}{y}\right)}{z \cdot c} \]
      5. metadata-eval78.4%

        \[\leadsto \frac{y \cdot \left(9 \cdot x + \frac{b + \color{blue}{-4} \cdot \left(a \cdot \left(t \cdot z\right)\right)}{y}\right)}{z \cdot c} \]
    7. Simplified78.4%

      \[\leadsto \frac{\color{blue}{y \cdot \left(9 \cdot x + \frac{b + -4 \cdot \left(a \cdot \left(t \cdot z\right)\right)}{y}\right)}}{z \cdot c} \]
    8. Taylor expanded in z around 0 82.4%

      \[\leadsto \color{blue}{\frac{-4 \cdot \frac{a \cdot \left(t \cdot z\right)}{c} + \frac{y \cdot \left(9 \cdot x + \frac{b}{y}\right)}{c}}{z}} \]
    9. Taylor expanded in b around inf 44.1%

      \[\leadsto \color{blue}{\frac{b}{c \cdot z}} \]
    10. Step-by-step derivation
      1. associate-/r*44.4%

        \[\leadsto \color{blue}{\frac{\frac{b}{c}}{z}} \]
    11. Simplified44.4%

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

    if 7e-93 < t

    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. associate-+l-72.7%

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

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{a \cdot \left(\left(z \cdot 4\right) \cdot t\right)} - b\right)}{z \cdot c} \]
      3. associate-*r*76.1%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(a \cdot \left(z \cdot 4\right)\right) \cdot t} - b\right)}{z \cdot c} \]
      4. *-commutative76.1%

        \[\leadsto \frac{\left(x \cdot 9\right) \cdot y - \left(\color{blue}{\left(\left(z \cdot 4\right) \cdot a\right)} \cdot t - b\right)}{z \cdot c} \]
      5. associate-+l-76.1%

        \[\leadsto \frac{\color{blue}{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}}{z \cdot c} \]
      6. associate-*l*76.1%

        \[\leadsto \frac{\left(\color{blue}{x \cdot \left(9 \cdot y\right)} - \left(\left(z \cdot 4\right) \cdot a\right) \cdot t\right) + b}{z \cdot c} \]
      7. associate-*l*75.0%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \color{blue}{\left(z \cdot 4\right) \cdot \left(a \cdot t\right)}\right) + b}{z \cdot c} \]
      8. *-commutative75.0%

        \[\leadsto \frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \color{blue}{\left(t \cdot a\right)}\right) + b}{z \cdot c} \]
    3. Simplified75.0%

      \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around inf 47.5%

      \[\leadsto \color{blue}{-4 \cdot \frac{a \cdot t}{c}} \]
    6. Step-by-step derivation
      1. *-commutative47.5%

        \[\leadsto \color{blue}{\frac{a \cdot t}{c} \cdot -4} \]
      2. associate-/l*48.7%

        \[\leadsto \color{blue}{\left(a \cdot \frac{t}{c}\right)} \cdot -4 \]
      3. associate-*r*48.7%

        \[\leadsto \color{blue}{a \cdot \left(\frac{t}{c} \cdot -4\right)} \]
      4. associate-*l/48.7%

        \[\leadsto a \cdot \color{blue}{\frac{t \cdot -4}{c}} \]
    7. Simplified48.7%

      \[\leadsto \color{blue}{a \cdot \frac{t \cdot -4}{c}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification49.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -1.9 \cdot 10^{+159}:\\ \;\;\;\;-4 \cdot \left(t \cdot \frac{a}{c}\right)\\ \mathbf{elif}\;t \leq 7 \cdot 10^{-93}:\\ \;\;\;\;\frac{\frac{b}{c}}{z}\\ \mathbf{else}:\\ \;\;\;\;a \cdot \frac{t \cdot -4}{c}\\ \end{array} \]
  5. Add Preprocessing

Alternative 12: 35.9% accurate, 3.8× speedup?

\[\begin{array}{l} [x, y, z, t, a, b, c] = \mathsf{sort}([x, y, z, t, a, b, c])\\ \\ \frac{b}{z \cdot c} \end{array} \]
NOTE: x, y, z, t, a, b, and c should be sorted in increasing order before calling this function.
(FPCore (x y z t a b c) :precision binary64 (/ b (* z c)))
assert(x < y && y < z && z < t && t < a && a < b && b < c);
double code(double x, double y, double z, double t, double a, double b, double c) {
	return b / (z * c);
}
NOTE: x, y, z, t, a, b, and c should be sorted in increasing order before calling this function.
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 = b / (z * c)
end function
assert x < y && y < z && z < t && t < a && a < b && b < c;
public static double code(double x, double y, double z, double t, double a, double b, double c) {
	return b / (z * c);
}
[x, y, z, t, a, b, c] = sort([x, y, z, t, a, b, c])
def code(x, y, z, t, a, b, c):
	return b / (z * c)
x, y, z, t, a, b, c = sort([x, y, z, t, a, b, c])
function code(x, y, z, t, a, b, c)
	return Float64(b / Float64(z * c))
end
x, y, z, t, a, b, c = num2cell(sort([x, y, z, t, a, b, c])){:}
function tmp = code(x, y, z, t, a, b, c)
	tmp = b / (z * c);
end
NOTE: x, y, z, t, a, b, and c should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_, a_, b_, c_] := N[(b / N[(z * c), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
[x, y, z, t, a, b, c] = \mathsf{sort}([x, y, z, t, a, b, c])\\
\\
\frac{b}{z \cdot c}
\end{array}
Derivation
  1. Initial program 79.9%

    \[\frac{\left(\left(x \cdot 9\right) \cdot y - \left(\left(z \cdot 4\right) \cdot t\right) \cdot a\right) + b}{z \cdot c} \]
  2. Step-by-step derivation
    1. associate-+l-79.9%

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

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

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

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

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

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

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

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

    \[\leadsto \color{blue}{\frac{\left(x \cdot \left(9 \cdot y\right) - \left(z \cdot 4\right) \cdot \left(t \cdot a\right)\right) + b}{z \cdot c}} \]
  4. Add Preprocessing
  5. Taylor expanded in b around inf 37.4%

    \[\leadsto \color{blue}{\frac{b}{c \cdot z}} \]
  6. Step-by-step derivation
    1. *-commutative37.4%

      \[\leadsto \frac{b}{\color{blue}{z \cdot c}} \]
  7. Simplified37.4%

    \[\leadsto \color{blue}{\frac{b}{z \cdot c}} \]
  8. Final simplification37.4%

    \[\leadsto \frac{b}{z \cdot c} \]
  9. Add Preprocessing

Developer target: 79.7% 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 2024067 
(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)))