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

Percentage Accurate: 95.7% → 98.7%
Time: 22.0s
Alternatives: 14
Speedup: 0.9×

Specification

?
\[\begin{array}{l} \\ \left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (+ (- (* x 2.0) (* (* (* y 9.0) z) t)) (* (* a 27.0) b)))
double code(double x, double y, double z, double t, double a, double b) {
	return ((x * 2.0) - (((y * 9.0) * z) * t)) + ((a * 27.0) * b);
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    code = ((x * 2.0d0) - (((y * 9.0d0) * z) * t)) + ((a * 27.0d0) * b)
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	return ((x * 2.0) - (((y * 9.0) * z) * t)) + ((a * 27.0) * b);
}
def code(x, y, z, t, a, b):
	return ((x * 2.0) - (((y * 9.0) * z) * t)) + ((a * 27.0) * b)
function code(x, y, z, t, a, b)
	return Float64(Float64(Float64(x * 2.0) - Float64(Float64(Float64(y * 9.0) * z) * t)) + Float64(Float64(a * 27.0) * b))
end
function tmp = code(x, y, z, t, a, b)
	tmp = ((x * 2.0) - (((y * 9.0) * z) * t)) + ((a * 27.0) * b);
end
code[x_, y_, z_, t_, a_, b_] := N[(N[(N[(x * 2.0), $MachinePrecision] - N[(N[(N[(y * 9.0), $MachinePrecision] * z), $MachinePrecision] * t), $MachinePrecision]), $MachinePrecision] + N[(N[(a * 27.0), $MachinePrecision] * b), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b
\end{array}

Sampling outcomes in binary64 precision:

Local Percentage Accuracy vs ?

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

Accuracy vs Speed?

Herbie found 14 alternatives:

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

Initial Program: 95.7% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (+ (- (* x 2.0) (* (* (* y 9.0) z) t)) (* (* a 27.0) b)))
double code(double x, double y, double z, double t, double a, double b) {
	return ((x * 2.0) - (((y * 9.0) * z) * t)) + ((a * 27.0) * b);
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    code = ((x * 2.0d0) - (((y * 9.0d0) * z) * t)) + ((a * 27.0d0) * b)
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	return ((x * 2.0) - (((y * 9.0) * z) * t)) + ((a * 27.0) * b);
}
def code(x, y, z, t, a, b):
	return ((x * 2.0) - (((y * 9.0) * z) * t)) + ((a * 27.0) * b)
function code(x, y, z, t, a, b)
	return Float64(Float64(Float64(x * 2.0) - Float64(Float64(Float64(y * 9.0) * z) * t)) + Float64(Float64(a * 27.0) * b))
end
function tmp = code(x, y, z, t, a, b)
	tmp = ((x * 2.0) - (((y * 9.0) * z) * t)) + ((a * 27.0) * b);
end
code[x_, y_, z_, t_, a_, b_] := N[(N[(N[(x * 2.0), $MachinePrecision] - N[(N[(N[(y * 9.0), $MachinePrecision] * z), $MachinePrecision] * t), $MachinePrecision]), $MachinePrecision] + N[(N[(a * 27.0), $MachinePrecision] * b), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b
\end{array}

Alternative 1: 98.7% accurate, 0.8× speedup?

\[\begin{array}{l} [x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\ \\ \begin{array}{l} t_1 := \mathsf{fma}\left(a, 27 \cdot b, x \cdot 2\right)\\ \mathbf{if}\;y \cdot 9 \leq -5 \cdot 10^{+18}:\\ \;\;\;\;\mathsf{fma}\left(y, \left(z \cdot -9\right) \cdot t, t\_1\right)\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(y \cdot t, z \cdot -9, t\_1\right)\\ \end{array} \end{array} \]
NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (fma a (* 27.0 b) (* x 2.0))))
   (if (<= (* y 9.0) -5e+18)
     (fma y (* (* z -9.0) t) t_1)
     (fma (* y t) (* z -9.0) t_1))))
assert(x < y && y < z && z < t && t < a && a < b);
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = fma(a, (27.0 * b), (x * 2.0));
	double tmp;
	if ((y * 9.0) <= -5e+18) {
		tmp = fma(y, ((z * -9.0) * t), t_1);
	} else {
		tmp = fma((y * t), (z * -9.0), t_1);
	}
	return tmp;
}
x, y, z, t, a, b = sort([x, y, z, t, a, b])
function code(x, y, z, t, a, b)
	t_1 = fma(a, Float64(27.0 * b), Float64(x * 2.0))
	tmp = 0.0
	if (Float64(y * 9.0) <= -5e+18)
		tmp = fma(y, Float64(Float64(z * -9.0) * t), t_1);
	else
		tmp = fma(Float64(y * t), Float64(z * -9.0), t_1);
	end
	return tmp
end
NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(a * N[(27.0 * b), $MachinePrecision] + N[(x * 2.0), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[N[(y * 9.0), $MachinePrecision], -5e+18], N[(y * N[(N[(z * -9.0), $MachinePrecision] * t), $MachinePrecision] + t$95$1), $MachinePrecision], N[(N[(y * t), $MachinePrecision] * N[(z * -9.0), $MachinePrecision] + t$95$1), $MachinePrecision]]]
\begin{array}{l}
[x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\
\\
\begin{array}{l}
t_1 := \mathsf{fma}\left(a, 27 \cdot b, x \cdot 2\right)\\
\mathbf{if}\;y \cdot 9 \leq -5 \cdot 10^{+18}:\\
\;\;\;\;\mathsf{fma}\left(y, \left(z \cdot -9\right) \cdot t, t\_1\right)\\

\mathbf{else}:\\
\;\;\;\;\mathsf{fma}\left(y \cdot t, z \cdot -9, t\_1\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (*.f64 y #s(literal 9 binary64)) < -5e18

    1. Initial program 81.9%

      \[\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b \]
    2. Add Preprocessing
    3. Step-by-step derivation
      1. lift-+.f64N/A

        \[\leadsto \color{blue}{\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b} \]
      2. lift--.f64N/A

        \[\leadsto \color{blue}{\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right)} + \left(a \cdot 27\right) \cdot b \]
      3. sub-negN/A

        \[\leadsto \color{blue}{\left(x \cdot 2 + \left(\mathsf{neg}\left(\left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right)\right)\right)} + \left(a \cdot 27\right) \cdot b \]
      4. +-commutativeN/A

        \[\leadsto \color{blue}{\left(\left(\mathsf{neg}\left(\left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right)\right) + x \cdot 2\right)} + \left(a \cdot 27\right) \cdot b \]
      5. associate-+l+N/A

        \[\leadsto \color{blue}{\left(\mathsf{neg}\left(\left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right)\right) + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right)} \]
      6. lift-*.f64N/A

        \[\leadsto \left(\mathsf{neg}\left(\color{blue}{\left(\left(y \cdot 9\right) \cdot z\right) \cdot t}\right)\right) + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
      7. distribute-lft-neg-inN/A

        \[\leadsto \color{blue}{\left(\mathsf{neg}\left(\left(y \cdot 9\right) \cdot z\right)\right) \cdot t} + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
      8. lift-*.f64N/A

        \[\leadsto \left(\mathsf{neg}\left(\color{blue}{\left(y \cdot 9\right) \cdot z}\right)\right) \cdot t + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
      9. lift-*.f64N/A

        \[\leadsto \left(\mathsf{neg}\left(\color{blue}{\left(y \cdot 9\right)} \cdot z\right)\right) \cdot t + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
      10. associate-*l*N/A

        \[\leadsto \left(\mathsf{neg}\left(\color{blue}{y \cdot \left(9 \cdot z\right)}\right)\right) \cdot t + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
      11. distribute-rgt-neg-inN/A

        \[\leadsto \color{blue}{\left(y \cdot \left(\mathsf{neg}\left(9 \cdot z\right)\right)\right)} \cdot t + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
      12. associate-*l*N/A

        \[\leadsto \color{blue}{y \cdot \left(\left(\mathsf{neg}\left(9 \cdot z\right)\right) \cdot t\right)} + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
      13. +-commutativeN/A

        \[\leadsto y \cdot \left(\left(\mathsf{neg}\left(9 \cdot z\right)\right) \cdot t\right) + \color{blue}{\left(\left(a \cdot 27\right) \cdot b + x \cdot 2\right)} \]
      14. lower-fma.f64N/A

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, \left(\mathsf{neg}\left(9 \cdot z\right)\right) \cdot t, \left(a \cdot 27\right) \cdot b + x \cdot 2\right)} \]
    4. Applied rewrites97.9%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, \left(z \cdot -9\right) \cdot t, \mathsf{fma}\left(a, 27 \cdot b, x \cdot 2\right)\right)} \]

    if -5e18 < (*.f64 y #s(literal 9 binary64))

    1. Initial program 96.4%

      \[\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b \]
    2. Add Preprocessing
    3. Step-by-step derivation
      1. lift-+.f64N/A

        \[\leadsto \color{blue}{\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b} \]
      2. lift--.f64N/A

        \[\leadsto \color{blue}{\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right)} + \left(a \cdot 27\right) \cdot b \]
      3. sub-negN/A

        \[\leadsto \color{blue}{\left(x \cdot 2 + \left(\mathsf{neg}\left(\left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right)\right)\right)} + \left(a \cdot 27\right) \cdot b \]
      4. +-commutativeN/A

        \[\leadsto \color{blue}{\left(\left(\mathsf{neg}\left(\left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right)\right) + x \cdot 2\right)} + \left(a \cdot 27\right) \cdot b \]
      5. associate-+l+N/A

        \[\leadsto \color{blue}{\left(\mathsf{neg}\left(\left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right)\right) + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right)} \]
      6. lift-*.f64N/A

        \[\leadsto \left(\mathsf{neg}\left(\color{blue}{\left(\left(y \cdot 9\right) \cdot z\right) \cdot t}\right)\right) + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
      7. *-commutativeN/A

        \[\leadsto \left(\mathsf{neg}\left(\color{blue}{t \cdot \left(\left(y \cdot 9\right) \cdot z\right)}\right)\right) + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
      8. lift-*.f64N/A

        \[\leadsto \left(\mathsf{neg}\left(t \cdot \color{blue}{\left(\left(y \cdot 9\right) \cdot z\right)}\right)\right) + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
      9. lift-*.f64N/A

        \[\leadsto \left(\mathsf{neg}\left(t \cdot \left(\color{blue}{\left(y \cdot 9\right)} \cdot z\right)\right)\right) + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
      10. associate-*l*N/A

        \[\leadsto \left(\mathsf{neg}\left(t \cdot \color{blue}{\left(y \cdot \left(9 \cdot z\right)\right)}\right)\right) + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
      11. associate-*r*N/A

        \[\leadsto \left(\mathsf{neg}\left(\color{blue}{\left(t \cdot y\right) \cdot \left(9 \cdot z\right)}\right)\right) + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
      12. distribute-rgt-neg-inN/A

        \[\leadsto \color{blue}{\left(t \cdot y\right) \cdot \left(\mathsf{neg}\left(9 \cdot z\right)\right)} + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
      13. +-commutativeN/A

        \[\leadsto \left(t \cdot y\right) \cdot \left(\mathsf{neg}\left(9 \cdot z\right)\right) + \color{blue}{\left(\left(a \cdot 27\right) \cdot b + x \cdot 2\right)} \]
      14. lower-fma.f64N/A

        \[\leadsto \color{blue}{\mathsf{fma}\left(t \cdot y, \mathsf{neg}\left(9 \cdot z\right), \left(a \cdot 27\right) \cdot b + x \cdot 2\right)} \]
      15. *-commutativeN/A

        \[\leadsto \mathsf{fma}\left(\color{blue}{y \cdot t}, \mathsf{neg}\left(9 \cdot z\right), \left(a \cdot 27\right) \cdot b + x \cdot 2\right) \]
      16. lower-*.f64N/A

        \[\leadsto \mathsf{fma}\left(\color{blue}{y \cdot t}, \mathsf{neg}\left(9 \cdot z\right), \left(a \cdot 27\right) \cdot b + x \cdot 2\right) \]
      17. *-commutativeN/A

        \[\leadsto \mathsf{fma}\left(y \cdot t, \mathsf{neg}\left(\color{blue}{z \cdot 9}\right), \left(a \cdot 27\right) \cdot b + x \cdot 2\right) \]
      18. distribute-rgt-neg-inN/A

        \[\leadsto \mathsf{fma}\left(y \cdot t, \color{blue}{z \cdot \left(\mathsf{neg}\left(9\right)\right)}, \left(a \cdot 27\right) \cdot b + x \cdot 2\right) \]
      19. lower-*.f64N/A

        \[\leadsto \mathsf{fma}\left(y \cdot t, \color{blue}{z \cdot \left(\mathsf{neg}\left(9\right)\right)}, \left(a \cdot 27\right) \cdot b + x \cdot 2\right) \]
      20. metadata-evalN/A

        \[\leadsto \mathsf{fma}\left(y \cdot t, z \cdot \color{blue}{-9}, \left(a \cdot 27\right) \cdot b + x \cdot 2\right) \]
    4. Applied rewrites98.0%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y \cdot t, z \cdot -9, \mathsf{fma}\left(a, 27 \cdot b, x \cdot 2\right)\right)} \]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 2: 59.6% accurate, 0.3× speedup?

\[\begin{array}{l} [x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\ \\ \begin{array}{l} t_1 := \left(z \cdot -9\right) \cdot \left(y \cdot t\right)\\ t_2 := x \cdot 2 - t \cdot \left(\left(y \cdot 9\right) \cdot z\right)\\ \mathbf{if}\;t\_2 \leq -\infty:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;t\_2 \leq -5 \cdot 10^{+173}:\\ \;\;\;\;x \cdot 2\\ \mathbf{elif}\;t\_2 \leq 5 \cdot 10^{+77}:\\ \;\;\;\;27 \cdot \left(a \cdot b\right)\\ \mathbf{elif}\;t\_2 \leq 2 \cdot 10^{+288}:\\ \;\;\;\;x \cdot 2\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* (* z -9.0) (* y t))) (t_2 (- (* x 2.0) (* t (* (* y 9.0) z)))))
   (if (<= t_2 (- INFINITY))
     t_1
     (if (<= t_2 -5e+173)
       (* x 2.0)
       (if (<= t_2 5e+77)
         (* 27.0 (* a b))
         (if (<= t_2 2e+288) (* x 2.0) t_1))))))
assert(x < y && y < z && z < t && t < a && a < b);
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = (z * -9.0) * (y * t);
	double t_2 = (x * 2.0) - (t * ((y * 9.0) * z));
	double tmp;
	if (t_2 <= -((double) INFINITY)) {
		tmp = t_1;
	} else if (t_2 <= -5e+173) {
		tmp = x * 2.0;
	} else if (t_2 <= 5e+77) {
		tmp = 27.0 * (a * b);
	} else if (t_2 <= 2e+288) {
		tmp = x * 2.0;
	} else {
		tmp = t_1;
	}
	return tmp;
}
assert x < y && y < z && z < t && t < a && a < b;
public static double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = (z * -9.0) * (y * t);
	double t_2 = (x * 2.0) - (t * ((y * 9.0) * z));
	double tmp;
	if (t_2 <= -Double.POSITIVE_INFINITY) {
		tmp = t_1;
	} else if (t_2 <= -5e+173) {
		tmp = x * 2.0;
	} else if (t_2 <= 5e+77) {
		tmp = 27.0 * (a * b);
	} else if (t_2 <= 2e+288) {
		tmp = x * 2.0;
	} else {
		tmp = t_1;
	}
	return tmp;
}
[x, y, z, t, a, b] = sort([x, y, z, t, a, b])
def code(x, y, z, t, a, b):
	t_1 = (z * -9.0) * (y * t)
	t_2 = (x * 2.0) - (t * ((y * 9.0) * z))
	tmp = 0
	if t_2 <= -math.inf:
		tmp = t_1
	elif t_2 <= -5e+173:
		tmp = x * 2.0
	elif t_2 <= 5e+77:
		tmp = 27.0 * (a * b)
	elif t_2 <= 2e+288:
		tmp = x * 2.0
	else:
		tmp = t_1
	return tmp
x, y, z, t, a, b = sort([x, y, z, t, a, b])
function code(x, y, z, t, a, b)
	t_1 = Float64(Float64(z * -9.0) * Float64(y * t))
	t_2 = Float64(Float64(x * 2.0) - Float64(t * Float64(Float64(y * 9.0) * z)))
	tmp = 0.0
	if (t_2 <= Float64(-Inf))
		tmp = t_1;
	elseif (t_2 <= -5e+173)
		tmp = Float64(x * 2.0);
	elseif (t_2 <= 5e+77)
		tmp = Float64(27.0 * Float64(a * b));
	elseif (t_2 <= 2e+288)
		tmp = Float64(x * 2.0);
	else
		tmp = t_1;
	end
	return tmp
end
x, y, z, t, a, b = num2cell(sort([x, y, z, t, a, b])){:}
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = (z * -9.0) * (y * t);
	t_2 = (x * 2.0) - (t * ((y * 9.0) * z));
	tmp = 0.0;
	if (t_2 <= -Inf)
		tmp = t_1;
	elseif (t_2 <= -5e+173)
		tmp = x * 2.0;
	elseif (t_2 <= 5e+77)
		tmp = 27.0 * (a * b);
	elseif (t_2 <= 2e+288)
		tmp = x * 2.0;
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(N[(z * -9.0), $MachinePrecision] * N[(y * t), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(N[(x * 2.0), $MachinePrecision] - N[(t * N[(N[(y * 9.0), $MachinePrecision] * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$2, (-Infinity)], t$95$1, If[LessEqual[t$95$2, -5e+173], N[(x * 2.0), $MachinePrecision], If[LessEqual[t$95$2, 5e+77], N[(27.0 * N[(a * b), $MachinePrecision]), $MachinePrecision], If[LessEqual[t$95$2, 2e+288], N[(x * 2.0), $MachinePrecision], t$95$1]]]]]]
\begin{array}{l}
[x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\
\\
\begin{array}{l}
t_1 := \left(z \cdot -9\right) \cdot \left(y \cdot t\right)\\
t_2 := x \cdot 2 - t \cdot \left(\left(y \cdot 9\right) \cdot z\right)\\
\mathbf{if}\;t\_2 \leq -\infty:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;t\_2 \leq -5 \cdot 10^{+173}:\\
\;\;\;\;x \cdot 2\\

\mathbf{elif}\;t\_2 \leq 5 \cdot 10^{+77}:\\
\;\;\;\;27 \cdot \left(a \cdot b\right)\\

\mathbf{elif}\;t\_2 \leq 2 \cdot 10^{+288}:\\
\;\;\;\;x \cdot 2\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if (-.f64 (*.f64 x #s(literal 2 binary64)) (*.f64 (*.f64 (*.f64 y #s(literal 9 binary64)) z) t)) < -inf.0 or 2e288 < (-.f64 (*.f64 x #s(literal 2 binary64)) (*.f64 (*.f64 (*.f64 y #s(literal 9 binary64)) z) t))

    1. Initial program 72.5%

      \[\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf

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

        \[\leadsto \color{blue}{\left(t \cdot \left(y \cdot z\right)\right) \cdot -9} \]
      2. associate-*l*N/A

        \[\leadsto \color{blue}{t \cdot \left(\left(y \cdot z\right) \cdot -9\right)} \]
      3. *-commutativeN/A

        \[\leadsto t \cdot \color{blue}{\left(-9 \cdot \left(y \cdot z\right)\right)} \]
      4. lower-*.f64N/A

        \[\leadsto \color{blue}{t \cdot \left(-9 \cdot \left(y \cdot z\right)\right)} \]
      5. *-commutativeN/A

        \[\leadsto t \cdot \color{blue}{\left(\left(y \cdot z\right) \cdot -9\right)} \]
      6. lower-*.f64N/A

        \[\leadsto t \cdot \color{blue}{\left(\left(y \cdot z\right) \cdot -9\right)} \]
      7. lower-*.f6474.2

        \[\leadsto t \cdot \left(\color{blue}{\left(y \cdot z\right)} \cdot -9\right) \]
    5. Applied rewrites74.2%

      \[\leadsto \color{blue}{t \cdot \left(\left(y \cdot z\right) \cdot -9\right)} \]
    6. Step-by-step derivation
      1. Applied rewrites85.1%

        \[\leadsto \left(z \cdot -9\right) \cdot \color{blue}{\left(y \cdot t\right)} \]

      if -inf.0 < (-.f64 (*.f64 x #s(literal 2 binary64)) (*.f64 (*.f64 (*.f64 y #s(literal 9 binary64)) z) t)) < -5.00000000000000034e173 or 5.00000000000000004e77 < (-.f64 (*.f64 x #s(literal 2 binary64)) (*.f64 (*.f64 (*.f64 y #s(literal 9 binary64)) z) t)) < 2e288

      1. Initial program 99.8%

        \[\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b \]
      2. Add Preprocessing
      3. Taylor expanded in x around inf

        \[\leadsto \color{blue}{2 \cdot x} \]
      4. Step-by-step derivation
        1. lower-*.f6457.8

          \[\leadsto \color{blue}{2 \cdot x} \]
      5. Applied rewrites57.8%

        \[\leadsto \color{blue}{2 \cdot x} \]

      if -5.00000000000000034e173 < (-.f64 (*.f64 x #s(literal 2 binary64)) (*.f64 (*.f64 (*.f64 y #s(literal 9 binary64)) z) t)) < 5.00000000000000004e77

      1. Initial program 99.7%

        \[\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b \]
      2. Add Preprocessing
      3. Taylor expanded in a around inf

        \[\leadsto \color{blue}{27 \cdot \left(a \cdot b\right)} \]
      4. Step-by-step derivation
        1. lower-*.f64N/A

          \[\leadsto \color{blue}{27 \cdot \left(a \cdot b\right)} \]
        2. lower-*.f6462.8

          \[\leadsto 27 \cdot \color{blue}{\left(a \cdot b\right)} \]
      5. Applied rewrites62.8%

        \[\leadsto \color{blue}{27 \cdot \left(a \cdot b\right)} \]
    7. Recombined 3 regimes into one program.
    8. Final simplification66.4%

      \[\leadsto \begin{array}{l} \mathbf{if}\;x \cdot 2 - t \cdot \left(\left(y \cdot 9\right) \cdot z\right) \leq -\infty:\\ \;\;\;\;\left(z \cdot -9\right) \cdot \left(y \cdot t\right)\\ \mathbf{elif}\;x \cdot 2 - t \cdot \left(\left(y \cdot 9\right) \cdot z\right) \leq -5 \cdot 10^{+173}:\\ \;\;\;\;x \cdot 2\\ \mathbf{elif}\;x \cdot 2 - t \cdot \left(\left(y \cdot 9\right) \cdot z\right) \leq 5 \cdot 10^{+77}:\\ \;\;\;\;27 \cdot \left(a \cdot b\right)\\ \mathbf{elif}\;x \cdot 2 - t \cdot \left(\left(y \cdot 9\right) \cdot z\right) \leq 2 \cdot 10^{+288}:\\ \;\;\;\;x \cdot 2\\ \mathbf{else}:\\ \;\;\;\;\left(z \cdot -9\right) \cdot \left(y \cdot t\right)\\ \end{array} \]
    9. Add Preprocessing

    Alternative 3: 60.0% accurate, 0.3× speedup?

    \[\begin{array}{l} [x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\ \\ \begin{array}{l} t_1 := y \cdot \left(\left(z \cdot -9\right) \cdot t\right)\\ t_2 := x \cdot 2 - t \cdot \left(\left(y \cdot 9\right) \cdot z\right)\\ \mathbf{if}\;t\_2 \leq -\infty:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;t\_2 \leq -5 \cdot 10^{+173}:\\ \;\;\;\;x \cdot 2\\ \mathbf{elif}\;t\_2 \leq 5 \cdot 10^{+77}:\\ \;\;\;\;27 \cdot \left(a \cdot b\right)\\ \mathbf{elif}\;t\_2 \leq 2 \cdot 10^{+306}:\\ \;\;\;\;x \cdot 2\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
    NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
    (FPCore (x y z t a b)
     :precision binary64
     (let* ((t_1 (* y (* (* z -9.0) t))) (t_2 (- (* x 2.0) (* t (* (* y 9.0) z)))))
       (if (<= t_2 (- INFINITY))
         t_1
         (if (<= t_2 -5e+173)
           (* x 2.0)
           (if (<= t_2 5e+77)
             (* 27.0 (* a b))
             (if (<= t_2 2e+306) (* x 2.0) t_1))))))
    assert(x < y && y < z && z < t && t < a && a < b);
    double code(double x, double y, double z, double t, double a, double b) {
    	double t_1 = y * ((z * -9.0) * t);
    	double t_2 = (x * 2.0) - (t * ((y * 9.0) * z));
    	double tmp;
    	if (t_2 <= -((double) INFINITY)) {
    		tmp = t_1;
    	} else if (t_2 <= -5e+173) {
    		tmp = x * 2.0;
    	} else if (t_2 <= 5e+77) {
    		tmp = 27.0 * (a * b);
    	} else if (t_2 <= 2e+306) {
    		tmp = x * 2.0;
    	} else {
    		tmp = t_1;
    	}
    	return tmp;
    }
    
    assert x < y && y < z && z < t && t < a && a < b;
    public static double code(double x, double y, double z, double t, double a, double b) {
    	double t_1 = y * ((z * -9.0) * t);
    	double t_2 = (x * 2.0) - (t * ((y * 9.0) * z));
    	double tmp;
    	if (t_2 <= -Double.POSITIVE_INFINITY) {
    		tmp = t_1;
    	} else if (t_2 <= -5e+173) {
    		tmp = x * 2.0;
    	} else if (t_2 <= 5e+77) {
    		tmp = 27.0 * (a * b);
    	} else if (t_2 <= 2e+306) {
    		tmp = x * 2.0;
    	} else {
    		tmp = t_1;
    	}
    	return tmp;
    }
    
    [x, y, z, t, a, b] = sort([x, y, z, t, a, b])
    def code(x, y, z, t, a, b):
    	t_1 = y * ((z * -9.0) * t)
    	t_2 = (x * 2.0) - (t * ((y * 9.0) * z))
    	tmp = 0
    	if t_2 <= -math.inf:
    		tmp = t_1
    	elif t_2 <= -5e+173:
    		tmp = x * 2.0
    	elif t_2 <= 5e+77:
    		tmp = 27.0 * (a * b)
    	elif t_2 <= 2e+306:
    		tmp = x * 2.0
    	else:
    		tmp = t_1
    	return tmp
    
    x, y, z, t, a, b = sort([x, y, z, t, a, b])
    function code(x, y, z, t, a, b)
    	t_1 = Float64(y * Float64(Float64(z * -9.0) * t))
    	t_2 = Float64(Float64(x * 2.0) - Float64(t * Float64(Float64(y * 9.0) * z)))
    	tmp = 0.0
    	if (t_2 <= Float64(-Inf))
    		tmp = t_1;
    	elseif (t_2 <= -5e+173)
    		tmp = Float64(x * 2.0);
    	elseif (t_2 <= 5e+77)
    		tmp = Float64(27.0 * Float64(a * b));
    	elseif (t_2 <= 2e+306)
    		tmp = Float64(x * 2.0);
    	else
    		tmp = t_1;
    	end
    	return tmp
    end
    
    x, y, z, t, a, b = num2cell(sort([x, y, z, t, a, b])){:}
    function tmp_2 = code(x, y, z, t, a, b)
    	t_1 = y * ((z * -9.0) * t);
    	t_2 = (x * 2.0) - (t * ((y * 9.0) * z));
    	tmp = 0.0;
    	if (t_2 <= -Inf)
    		tmp = t_1;
    	elseif (t_2 <= -5e+173)
    		tmp = x * 2.0;
    	elseif (t_2 <= 5e+77)
    		tmp = 27.0 * (a * b);
    	elseif (t_2 <= 2e+306)
    		tmp = x * 2.0;
    	else
    		tmp = t_1;
    	end
    	tmp_2 = tmp;
    end
    
    NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
    code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(y * N[(N[(z * -9.0), $MachinePrecision] * t), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(N[(x * 2.0), $MachinePrecision] - N[(t * N[(N[(y * 9.0), $MachinePrecision] * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$2, (-Infinity)], t$95$1, If[LessEqual[t$95$2, -5e+173], N[(x * 2.0), $MachinePrecision], If[LessEqual[t$95$2, 5e+77], N[(27.0 * N[(a * b), $MachinePrecision]), $MachinePrecision], If[LessEqual[t$95$2, 2e+306], N[(x * 2.0), $MachinePrecision], t$95$1]]]]]]
    
    \begin{array}{l}
    [x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\
    \\
    \begin{array}{l}
    t_1 := y \cdot \left(\left(z \cdot -9\right) \cdot t\right)\\
    t_2 := x \cdot 2 - t \cdot \left(\left(y \cdot 9\right) \cdot z\right)\\
    \mathbf{if}\;t\_2 \leq -\infty:\\
    \;\;\;\;t\_1\\
    
    \mathbf{elif}\;t\_2 \leq -5 \cdot 10^{+173}:\\
    \;\;\;\;x \cdot 2\\
    
    \mathbf{elif}\;t\_2 \leq 5 \cdot 10^{+77}:\\
    \;\;\;\;27 \cdot \left(a \cdot b\right)\\
    
    \mathbf{elif}\;t\_2 \leq 2 \cdot 10^{+306}:\\
    \;\;\;\;x \cdot 2\\
    
    \mathbf{else}:\\
    \;\;\;\;t\_1\\
    
    
    \end{array}
    \end{array}
    
    Derivation
    1. Split input into 3 regimes
    2. if (-.f64 (*.f64 x #s(literal 2 binary64)) (*.f64 (*.f64 (*.f64 y #s(literal 9 binary64)) z) t)) < -inf.0 or 2.00000000000000003e306 < (-.f64 (*.f64 x #s(literal 2 binary64)) (*.f64 (*.f64 (*.f64 y #s(literal 9 binary64)) z) t))

      1. Initial program 71.1%

        \[\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b \]
      2. Add Preprocessing
      3. Taylor expanded in y around inf

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

          \[\leadsto \color{blue}{\left(t \cdot \left(y \cdot z\right)\right) \cdot -9} \]
        2. associate-*l*N/A

          \[\leadsto \color{blue}{t \cdot \left(\left(y \cdot z\right) \cdot -9\right)} \]
        3. *-commutativeN/A

          \[\leadsto t \cdot \color{blue}{\left(-9 \cdot \left(y \cdot z\right)\right)} \]
        4. lower-*.f64N/A

          \[\leadsto \color{blue}{t \cdot \left(-9 \cdot \left(y \cdot z\right)\right)} \]
        5. *-commutativeN/A

          \[\leadsto t \cdot \color{blue}{\left(\left(y \cdot z\right) \cdot -9\right)} \]
        6. lower-*.f64N/A

          \[\leadsto t \cdot \color{blue}{\left(\left(y \cdot z\right) \cdot -9\right)} \]
        7. lower-*.f6474.6

          \[\leadsto t \cdot \left(\color{blue}{\left(y \cdot z\right)} \cdot -9\right) \]
      5. Applied rewrites74.6%

        \[\leadsto \color{blue}{t \cdot \left(\left(y \cdot z\right) \cdot -9\right)} \]
      6. Step-by-step derivation
        1. Applied rewrites86.0%

          \[\leadsto \left(t \cdot \left(z \cdot -9\right)\right) \cdot \color{blue}{y} \]

        if -inf.0 < (-.f64 (*.f64 x #s(literal 2 binary64)) (*.f64 (*.f64 (*.f64 y #s(literal 9 binary64)) z) t)) < -5.00000000000000034e173 or 5.00000000000000004e77 < (-.f64 (*.f64 x #s(literal 2 binary64)) (*.f64 (*.f64 (*.f64 y #s(literal 9 binary64)) z) t)) < 2.00000000000000003e306

        1. Initial program 99.8%

          \[\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b \]
        2. Add Preprocessing
        3. Taylor expanded in x around inf

          \[\leadsto \color{blue}{2 \cdot x} \]
        4. Step-by-step derivation
          1. lower-*.f6457.0

            \[\leadsto \color{blue}{2 \cdot x} \]
        5. Applied rewrites57.0%

          \[\leadsto \color{blue}{2 \cdot x} \]

        if -5.00000000000000034e173 < (-.f64 (*.f64 x #s(literal 2 binary64)) (*.f64 (*.f64 (*.f64 y #s(literal 9 binary64)) z) t)) < 5.00000000000000004e77

        1. Initial program 99.7%

          \[\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b \]
        2. Add Preprocessing
        3. Taylor expanded in a around inf

          \[\leadsto \color{blue}{27 \cdot \left(a \cdot b\right)} \]
        4. Step-by-step derivation
          1. lower-*.f64N/A

            \[\leadsto \color{blue}{27 \cdot \left(a \cdot b\right)} \]
          2. lower-*.f6462.8

            \[\leadsto 27 \cdot \color{blue}{\left(a \cdot b\right)} \]
        5. Applied rewrites62.8%

          \[\leadsto \color{blue}{27 \cdot \left(a \cdot b\right)} \]
      7. Recombined 3 regimes into one program.
      8. Final simplification65.9%

        \[\leadsto \begin{array}{l} \mathbf{if}\;x \cdot 2 - t \cdot \left(\left(y \cdot 9\right) \cdot z\right) \leq -\infty:\\ \;\;\;\;y \cdot \left(\left(z \cdot -9\right) \cdot t\right)\\ \mathbf{elif}\;x \cdot 2 - t \cdot \left(\left(y \cdot 9\right) \cdot z\right) \leq -5 \cdot 10^{+173}:\\ \;\;\;\;x \cdot 2\\ \mathbf{elif}\;x \cdot 2 - t \cdot \left(\left(y \cdot 9\right) \cdot z\right) \leq 5 \cdot 10^{+77}:\\ \;\;\;\;27 \cdot \left(a \cdot b\right)\\ \mathbf{elif}\;x \cdot 2 - t \cdot \left(\left(y \cdot 9\right) \cdot z\right) \leq 2 \cdot 10^{+306}:\\ \;\;\;\;x \cdot 2\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(\left(z \cdot -9\right) \cdot t\right)\\ \end{array} \]
      9. Add Preprocessing

      Alternative 4: 57.3% accurate, 0.3× speedup?

      \[\begin{array}{l} [x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\ \\ \begin{array}{l} t_1 := -9 \cdot \left(t \cdot \left(y \cdot z\right)\right)\\ t_2 := x \cdot 2 - t \cdot \left(\left(y \cdot 9\right) \cdot z\right)\\ \mathbf{if}\;t\_2 \leq -\infty:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;t\_2 \leq -5 \cdot 10^{+173}:\\ \;\;\;\;x \cdot 2\\ \mathbf{elif}\;t\_2 \leq 5 \cdot 10^{+77}:\\ \;\;\;\;27 \cdot \left(a \cdot b\right)\\ \mathbf{elif}\;t\_2 \leq 2 \cdot 10^{+243}:\\ \;\;\;\;x \cdot 2\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
      NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
      (FPCore (x y z t a b)
       :precision binary64
       (let* ((t_1 (* -9.0 (* t (* y z)))) (t_2 (- (* x 2.0) (* t (* (* y 9.0) z)))))
         (if (<= t_2 (- INFINITY))
           t_1
           (if (<= t_2 -5e+173)
             (* x 2.0)
             (if (<= t_2 5e+77)
               (* 27.0 (* a b))
               (if (<= t_2 2e+243) (* x 2.0) t_1))))))
      assert(x < y && y < z && z < t && t < a && a < b);
      double code(double x, double y, double z, double t, double a, double b) {
      	double t_1 = -9.0 * (t * (y * z));
      	double t_2 = (x * 2.0) - (t * ((y * 9.0) * z));
      	double tmp;
      	if (t_2 <= -((double) INFINITY)) {
      		tmp = t_1;
      	} else if (t_2 <= -5e+173) {
      		tmp = x * 2.0;
      	} else if (t_2 <= 5e+77) {
      		tmp = 27.0 * (a * b);
      	} else if (t_2 <= 2e+243) {
      		tmp = x * 2.0;
      	} else {
      		tmp = t_1;
      	}
      	return tmp;
      }
      
      assert x < y && y < z && z < t && t < a && a < b;
      public static double code(double x, double y, double z, double t, double a, double b) {
      	double t_1 = -9.0 * (t * (y * z));
      	double t_2 = (x * 2.0) - (t * ((y * 9.0) * z));
      	double tmp;
      	if (t_2 <= -Double.POSITIVE_INFINITY) {
      		tmp = t_1;
      	} else if (t_2 <= -5e+173) {
      		tmp = x * 2.0;
      	} else if (t_2 <= 5e+77) {
      		tmp = 27.0 * (a * b);
      	} else if (t_2 <= 2e+243) {
      		tmp = x * 2.0;
      	} else {
      		tmp = t_1;
      	}
      	return tmp;
      }
      
      [x, y, z, t, a, b] = sort([x, y, z, t, a, b])
      def code(x, y, z, t, a, b):
      	t_1 = -9.0 * (t * (y * z))
      	t_2 = (x * 2.0) - (t * ((y * 9.0) * z))
      	tmp = 0
      	if t_2 <= -math.inf:
      		tmp = t_1
      	elif t_2 <= -5e+173:
      		tmp = x * 2.0
      	elif t_2 <= 5e+77:
      		tmp = 27.0 * (a * b)
      	elif t_2 <= 2e+243:
      		tmp = x * 2.0
      	else:
      		tmp = t_1
      	return tmp
      
      x, y, z, t, a, b = sort([x, y, z, t, a, b])
      function code(x, y, z, t, a, b)
      	t_1 = Float64(-9.0 * Float64(t * Float64(y * z)))
      	t_2 = Float64(Float64(x * 2.0) - Float64(t * Float64(Float64(y * 9.0) * z)))
      	tmp = 0.0
      	if (t_2 <= Float64(-Inf))
      		tmp = t_1;
      	elseif (t_2 <= -5e+173)
      		tmp = Float64(x * 2.0);
      	elseif (t_2 <= 5e+77)
      		tmp = Float64(27.0 * Float64(a * b));
      	elseif (t_2 <= 2e+243)
      		tmp = Float64(x * 2.0);
      	else
      		tmp = t_1;
      	end
      	return tmp
      end
      
      x, y, z, t, a, b = num2cell(sort([x, y, z, t, a, b])){:}
      function tmp_2 = code(x, y, z, t, a, b)
      	t_1 = -9.0 * (t * (y * z));
      	t_2 = (x * 2.0) - (t * ((y * 9.0) * z));
      	tmp = 0.0;
      	if (t_2 <= -Inf)
      		tmp = t_1;
      	elseif (t_2 <= -5e+173)
      		tmp = x * 2.0;
      	elseif (t_2 <= 5e+77)
      		tmp = 27.0 * (a * b);
      	elseif (t_2 <= 2e+243)
      		tmp = x * 2.0;
      	else
      		tmp = t_1;
      	end
      	tmp_2 = tmp;
      end
      
      NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
      code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(-9.0 * N[(t * N[(y * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(N[(x * 2.0), $MachinePrecision] - N[(t * N[(N[(y * 9.0), $MachinePrecision] * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$2, (-Infinity)], t$95$1, If[LessEqual[t$95$2, -5e+173], N[(x * 2.0), $MachinePrecision], If[LessEqual[t$95$2, 5e+77], N[(27.0 * N[(a * b), $MachinePrecision]), $MachinePrecision], If[LessEqual[t$95$2, 2e+243], N[(x * 2.0), $MachinePrecision], t$95$1]]]]]]
      
      \begin{array}{l}
      [x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\
      \\
      \begin{array}{l}
      t_1 := -9 \cdot \left(t \cdot \left(y \cdot z\right)\right)\\
      t_2 := x \cdot 2 - t \cdot \left(\left(y \cdot 9\right) \cdot z\right)\\
      \mathbf{if}\;t\_2 \leq -\infty:\\
      \;\;\;\;t\_1\\
      
      \mathbf{elif}\;t\_2 \leq -5 \cdot 10^{+173}:\\
      \;\;\;\;x \cdot 2\\
      
      \mathbf{elif}\;t\_2 \leq 5 \cdot 10^{+77}:\\
      \;\;\;\;27 \cdot \left(a \cdot b\right)\\
      
      \mathbf{elif}\;t\_2 \leq 2 \cdot 10^{+243}:\\
      \;\;\;\;x \cdot 2\\
      
      \mathbf{else}:\\
      \;\;\;\;t\_1\\
      
      
      \end{array}
      \end{array}
      
      Derivation
      1. Split input into 3 regimes
      2. if (-.f64 (*.f64 x #s(literal 2 binary64)) (*.f64 (*.f64 (*.f64 y #s(literal 9 binary64)) z) t)) < -inf.0 or 2.0000000000000001e243 < (-.f64 (*.f64 x #s(literal 2 binary64)) (*.f64 (*.f64 (*.f64 y #s(literal 9 binary64)) z) t))

        1. Initial program 77.6%

          \[\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b \]
        2. Add Preprocessing
        3. Taylor expanded in x around inf

          \[\leadsto \color{blue}{2 \cdot x} \]
        4. Step-by-step derivation
          1. lower-*.f6416.9

            \[\leadsto \color{blue}{2 \cdot x} \]
        5. Applied rewrites16.9%

          \[\leadsto \color{blue}{2 \cdot x} \]
        6. Taylor expanded in y around inf

          \[\leadsto \color{blue}{-9 \cdot \left(t \cdot \left(y \cdot z\right)\right)} \]
        7. Step-by-step derivation
          1. lower-*.f64N/A

            \[\leadsto \color{blue}{-9 \cdot \left(t \cdot \left(y \cdot z\right)\right)} \]
          2. lower-*.f64N/A

            \[\leadsto -9 \cdot \color{blue}{\left(t \cdot \left(y \cdot z\right)\right)} \]
          3. lower-*.f6468.4

            \[\leadsto -9 \cdot \left(t \cdot \color{blue}{\left(y \cdot z\right)}\right) \]
        8. Applied rewrites68.4%

          \[\leadsto \color{blue}{-9 \cdot \left(t \cdot \left(y \cdot z\right)\right)} \]

        if -inf.0 < (-.f64 (*.f64 x #s(literal 2 binary64)) (*.f64 (*.f64 (*.f64 y #s(literal 9 binary64)) z) t)) < -5.00000000000000034e173 or 5.00000000000000004e77 < (-.f64 (*.f64 x #s(literal 2 binary64)) (*.f64 (*.f64 (*.f64 y #s(literal 9 binary64)) z) t)) < 2.0000000000000001e243

        1. Initial program 99.8%

          \[\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b \]
        2. Add Preprocessing
        3. Taylor expanded in x around inf

          \[\leadsto \color{blue}{2 \cdot x} \]
        4. Step-by-step derivation
          1. lower-*.f6460.4

            \[\leadsto \color{blue}{2 \cdot x} \]
        5. Applied rewrites60.4%

          \[\leadsto \color{blue}{2 \cdot x} \]

        if -5.00000000000000034e173 < (-.f64 (*.f64 x #s(literal 2 binary64)) (*.f64 (*.f64 (*.f64 y #s(literal 9 binary64)) z) t)) < 5.00000000000000004e77

        1. Initial program 99.7%

          \[\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b \]
        2. Add Preprocessing
        3. Taylor expanded in a around inf

          \[\leadsto \color{blue}{27 \cdot \left(a \cdot b\right)} \]
        4. Step-by-step derivation
          1. lower-*.f64N/A

            \[\leadsto \color{blue}{27 \cdot \left(a \cdot b\right)} \]
          2. lower-*.f6462.8

            \[\leadsto 27 \cdot \color{blue}{\left(a \cdot b\right)} \]
        5. Applied rewrites62.8%

          \[\leadsto \color{blue}{27 \cdot \left(a \cdot b\right)} \]
      3. Recombined 3 regimes into one program.
      4. Final simplification63.7%

        \[\leadsto \begin{array}{l} \mathbf{if}\;x \cdot 2 - t \cdot \left(\left(y \cdot 9\right) \cdot z\right) \leq -\infty:\\ \;\;\;\;-9 \cdot \left(t \cdot \left(y \cdot z\right)\right)\\ \mathbf{elif}\;x \cdot 2 - t \cdot \left(\left(y \cdot 9\right) \cdot z\right) \leq -5 \cdot 10^{+173}:\\ \;\;\;\;x \cdot 2\\ \mathbf{elif}\;x \cdot 2 - t \cdot \left(\left(y \cdot 9\right) \cdot z\right) \leq 5 \cdot 10^{+77}:\\ \;\;\;\;27 \cdot \left(a \cdot b\right)\\ \mathbf{elif}\;x \cdot 2 - t \cdot \left(\left(y \cdot 9\right) \cdot z\right) \leq 2 \cdot 10^{+243}:\\ \;\;\;\;x \cdot 2\\ \mathbf{else}:\\ \;\;\;\;-9 \cdot \left(t \cdot \left(y \cdot z\right)\right)\\ \end{array} \]
      5. Add Preprocessing

      Alternative 5: 86.6% accurate, 0.5× speedup?

      \[\begin{array}{l} [x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\ \\ \begin{array}{l} t_1 := t \cdot \left(\left(y \cdot 9\right) \cdot z\right)\\ \mathbf{if}\;t\_1 \leq -1 \cdot 10^{-39}:\\ \;\;\;\;\mathsf{fma}\left(t, -9 \cdot \left(y \cdot z\right), 27 \cdot \left(a \cdot b\right)\right)\\ \mathbf{elif}\;t\_1 \leq 10^{+109}:\\ \;\;\;\;\mathsf{fma}\left(27, a \cdot b, x \cdot 2\right)\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(z \cdot t, y \cdot -9, a \cdot \left(27 \cdot b\right)\right)\\ \end{array} \end{array} \]
      NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
      (FPCore (x y z t a b)
       :precision binary64
       (let* ((t_1 (* t (* (* y 9.0) z))))
         (if (<= t_1 -1e-39)
           (fma t (* -9.0 (* y z)) (* 27.0 (* a b)))
           (if (<= t_1 1e+109)
             (fma 27.0 (* a b) (* x 2.0))
             (fma (* z t) (* y -9.0) (* a (* 27.0 b)))))))
      assert(x < y && y < z && z < t && t < a && a < b);
      double code(double x, double y, double z, double t, double a, double b) {
      	double t_1 = t * ((y * 9.0) * z);
      	double tmp;
      	if (t_1 <= -1e-39) {
      		tmp = fma(t, (-9.0 * (y * z)), (27.0 * (a * b)));
      	} else if (t_1 <= 1e+109) {
      		tmp = fma(27.0, (a * b), (x * 2.0));
      	} else {
      		tmp = fma((z * t), (y * -9.0), (a * (27.0 * b)));
      	}
      	return tmp;
      }
      
      x, y, z, t, a, b = sort([x, y, z, t, a, b])
      function code(x, y, z, t, a, b)
      	t_1 = Float64(t * Float64(Float64(y * 9.0) * z))
      	tmp = 0.0
      	if (t_1 <= -1e-39)
      		tmp = fma(t, Float64(-9.0 * Float64(y * z)), Float64(27.0 * Float64(a * b)));
      	elseif (t_1 <= 1e+109)
      		tmp = fma(27.0, Float64(a * b), Float64(x * 2.0));
      	else
      		tmp = fma(Float64(z * t), Float64(y * -9.0), Float64(a * Float64(27.0 * b)));
      	end
      	return tmp
      end
      
      NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
      code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(t * N[(N[(y * 9.0), $MachinePrecision] * z), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$1, -1e-39], N[(t * N[(-9.0 * N[(y * z), $MachinePrecision]), $MachinePrecision] + N[(27.0 * N[(a * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[t$95$1, 1e+109], N[(27.0 * N[(a * b), $MachinePrecision] + N[(x * 2.0), $MachinePrecision]), $MachinePrecision], N[(N[(z * t), $MachinePrecision] * N[(y * -9.0), $MachinePrecision] + N[(a * N[(27.0 * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]
      
      \begin{array}{l}
      [x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\
      \\
      \begin{array}{l}
      t_1 := t \cdot \left(\left(y \cdot 9\right) \cdot z\right)\\
      \mathbf{if}\;t\_1 \leq -1 \cdot 10^{-39}:\\
      \;\;\;\;\mathsf{fma}\left(t, -9 \cdot \left(y \cdot z\right), 27 \cdot \left(a \cdot b\right)\right)\\
      
      \mathbf{elif}\;t\_1 \leq 10^{+109}:\\
      \;\;\;\;\mathsf{fma}\left(27, a \cdot b, x \cdot 2\right)\\
      
      \mathbf{else}:\\
      \;\;\;\;\mathsf{fma}\left(z \cdot t, y \cdot -9, a \cdot \left(27 \cdot b\right)\right)\\
      
      
      \end{array}
      \end{array}
      
      Derivation
      1. Split input into 3 regimes
      2. if (*.f64 (*.f64 (*.f64 y #s(literal 9 binary64)) z) t) < -9.99999999999999929e-40

        1. Initial program 88.4%

          \[\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b \]
        2. Add Preprocessing
        3. Taylor expanded in x around 0

          \[\leadsto \color{blue}{27 \cdot \left(a \cdot b\right) - 9 \cdot \left(t \cdot \left(y \cdot z\right)\right)} \]
        4. Step-by-step derivation
          1. cancel-sign-sub-invN/A

            \[\leadsto \color{blue}{27 \cdot \left(a \cdot b\right) + \left(\mathsf{neg}\left(9\right)\right) \cdot \left(t \cdot \left(y \cdot z\right)\right)} \]
          2. metadata-evalN/A

            \[\leadsto 27 \cdot \left(a \cdot b\right) + \color{blue}{-9} \cdot \left(t \cdot \left(y \cdot z\right)\right) \]
          3. +-commutativeN/A

            \[\leadsto \color{blue}{-9 \cdot \left(t \cdot \left(y \cdot z\right)\right) + 27 \cdot \left(a \cdot b\right)} \]
          4. *-commutativeN/A

            \[\leadsto \color{blue}{\left(t \cdot \left(y \cdot z\right)\right) \cdot -9} + 27 \cdot \left(a \cdot b\right) \]
          5. associate-*l*N/A

            \[\leadsto \color{blue}{t \cdot \left(\left(y \cdot z\right) \cdot -9\right)} + 27 \cdot \left(a \cdot b\right) \]
          6. *-commutativeN/A

            \[\leadsto t \cdot \color{blue}{\left(-9 \cdot \left(y \cdot z\right)\right)} + 27 \cdot \left(a \cdot b\right) \]
          7. lower-fma.f64N/A

            \[\leadsto \color{blue}{\mathsf{fma}\left(t, -9 \cdot \left(y \cdot z\right), 27 \cdot \left(a \cdot b\right)\right)} \]
          8. *-commutativeN/A

            \[\leadsto \mathsf{fma}\left(t, \color{blue}{\left(y \cdot z\right) \cdot -9}, 27 \cdot \left(a \cdot b\right)\right) \]
          9. lower-*.f64N/A

            \[\leadsto \mathsf{fma}\left(t, \color{blue}{\left(y \cdot z\right) \cdot -9}, 27 \cdot \left(a \cdot b\right)\right) \]
          10. lower-*.f64N/A

            \[\leadsto \mathsf{fma}\left(t, \color{blue}{\left(y \cdot z\right)} \cdot -9, 27 \cdot \left(a \cdot b\right)\right) \]
          11. lower-*.f64N/A

            \[\leadsto \mathsf{fma}\left(t, \left(y \cdot z\right) \cdot -9, \color{blue}{27 \cdot \left(a \cdot b\right)}\right) \]
          12. lower-*.f6480.8

            \[\leadsto \mathsf{fma}\left(t, \left(y \cdot z\right) \cdot -9, 27 \cdot \color{blue}{\left(a \cdot b\right)}\right) \]
        5. Applied rewrites80.8%

          \[\leadsto \color{blue}{\mathsf{fma}\left(t, \left(y \cdot z\right) \cdot -9, 27 \cdot \left(a \cdot b\right)\right)} \]

        if -9.99999999999999929e-40 < (*.f64 (*.f64 (*.f64 y #s(literal 9 binary64)) z) t) < 9.99999999999999982e108

        1. Initial program 99.7%

          \[\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b \]
        2. Add Preprocessing
        3. Taylor expanded in y around 0

          \[\leadsto \color{blue}{2 \cdot x + 27 \cdot \left(a \cdot b\right)} \]
        4. Step-by-step derivation
          1. +-commutativeN/A

            \[\leadsto \color{blue}{27 \cdot \left(a \cdot b\right) + 2 \cdot x} \]
          2. lower-fma.f64N/A

            \[\leadsto \color{blue}{\mathsf{fma}\left(27, a \cdot b, 2 \cdot x\right)} \]
          3. lower-*.f64N/A

            \[\leadsto \mathsf{fma}\left(27, \color{blue}{a \cdot b}, 2 \cdot x\right) \]
          4. lower-*.f6494.5

            \[\leadsto \mathsf{fma}\left(27, a \cdot b, \color{blue}{2 \cdot x}\right) \]
        5. Applied rewrites94.5%

          \[\leadsto \color{blue}{\mathsf{fma}\left(27, a \cdot b, 2 \cdot x\right)} \]

        if 9.99999999999999982e108 < (*.f64 (*.f64 (*.f64 y #s(literal 9 binary64)) z) t)

        1. Initial program 81.4%

          \[\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b \]
        2. Add Preprocessing
        3. Taylor expanded in x around 0

          \[\leadsto \color{blue}{27 \cdot \left(a \cdot b\right) - 9 \cdot \left(t \cdot \left(y \cdot z\right)\right)} \]
        4. Step-by-step derivation
          1. cancel-sign-sub-invN/A

            \[\leadsto \color{blue}{27 \cdot \left(a \cdot b\right) + \left(\mathsf{neg}\left(9\right)\right) \cdot \left(t \cdot \left(y \cdot z\right)\right)} \]
          2. metadata-evalN/A

            \[\leadsto 27 \cdot \left(a \cdot b\right) + \color{blue}{-9} \cdot \left(t \cdot \left(y \cdot z\right)\right) \]
          3. +-commutativeN/A

            \[\leadsto \color{blue}{-9 \cdot \left(t \cdot \left(y \cdot z\right)\right) + 27 \cdot \left(a \cdot b\right)} \]
          4. *-commutativeN/A

            \[\leadsto \color{blue}{\left(t \cdot \left(y \cdot z\right)\right) \cdot -9} + 27 \cdot \left(a \cdot b\right) \]
          5. associate-*l*N/A

            \[\leadsto \color{blue}{t \cdot \left(\left(y \cdot z\right) \cdot -9\right)} + 27 \cdot \left(a \cdot b\right) \]
          6. *-commutativeN/A

            \[\leadsto t \cdot \color{blue}{\left(-9 \cdot \left(y \cdot z\right)\right)} + 27 \cdot \left(a \cdot b\right) \]
          7. lower-fma.f64N/A

            \[\leadsto \color{blue}{\mathsf{fma}\left(t, -9 \cdot \left(y \cdot z\right), 27 \cdot \left(a \cdot b\right)\right)} \]
          8. *-commutativeN/A

            \[\leadsto \mathsf{fma}\left(t, \color{blue}{\left(y \cdot z\right) \cdot -9}, 27 \cdot \left(a \cdot b\right)\right) \]
          9. lower-*.f64N/A

            \[\leadsto \mathsf{fma}\left(t, \color{blue}{\left(y \cdot z\right) \cdot -9}, 27 \cdot \left(a \cdot b\right)\right) \]
          10. lower-*.f64N/A

            \[\leadsto \mathsf{fma}\left(t, \color{blue}{\left(y \cdot z\right)} \cdot -9, 27 \cdot \left(a \cdot b\right)\right) \]
          11. lower-*.f64N/A

            \[\leadsto \mathsf{fma}\left(t, \left(y \cdot z\right) \cdot -9, \color{blue}{27 \cdot \left(a \cdot b\right)}\right) \]
          12. lower-*.f6486.4

            \[\leadsto \mathsf{fma}\left(t, \left(y \cdot z\right) \cdot -9, 27 \cdot \color{blue}{\left(a \cdot b\right)}\right) \]
        5. Applied rewrites86.4%

          \[\leadsto \color{blue}{\mathsf{fma}\left(t, \left(y \cdot z\right) \cdot -9, 27 \cdot \left(a \cdot b\right)\right)} \]
        6. Step-by-step derivation
          1. Applied rewrites81.7%

            \[\leadsto \mathsf{fma}\left(z \cdot t, \color{blue}{y \cdot -9}, a \cdot \left(27 \cdot b\right)\right) \]
        7. Recombined 3 regimes into one program.
        8. Final simplification88.3%

          \[\leadsto \begin{array}{l} \mathbf{if}\;t \cdot \left(\left(y \cdot 9\right) \cdot z\right) \leq -1 \cdot 10^{-39}:\\ \;\;\;\;\mathsf{fma}\left(t, -9 \cdot \left(y \cdot z\right), 27 \cdot \left(a \cdot b\right)\right)\\ \mathbf{elif}\;t \cdot \left(\left(y \cdot 9\right) \cdot z\right) \leq 10^{+109}:\\ \;\;\;\;\mathsf{fma}\left(27, a \cdot b, x \cdot 2\right)\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(z \cdot t, y \cdot -9, a \cdot \left(27 \cdot b\right)\right)\\ \end{array} \]
        9. Add Preprocessing

        Alternative 6: 86.6% accurate, 0.5× speedup?

        \[\begin{array}{l} [x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\ \\ \begin{array}{l} t_1 := \mathsf{fma}\left(t, -9 \cdot \left(y \cdot z\right), 27 \cdot \left(a \cdot b\right)\right)\\ t_2 := t \cdot \left(\left(y \cdot 9\right) \cdot z\right)\\ \mathbf{if}\;t\_2 \leq -1 \cdot 10^{-39}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;t\_2 \leq 10^{+109}:\\ \;\;\;\;\mathsf{fma}\left(27, a \cdot b, x \cdot 2\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
        NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
        (FPCore (x y z t a b)
         :precision binary64
         (let* ((t_1 (fma t (* -9.0 (* y z)) (* 27.0 (* a b))))
                (t_2 (* t (* (* y 9.0) z))))
           (if (<= t_2 -1e-39)
             t_1
             (if (<= t_2 1e+109) (fma 27.0 (* a b) (* x 2.0)) t_1))))
        assert(x < y && y < z && z < t && t < a && a < b);
        double code(double x, double y, double z, double t, double a, double b) {
        	double t_1 = fma(t, (-9.0 * (y * z)), (27.0 * (a * b)));
        	double t_2 = t * ((y * 9.0) * z);
        	double tmp;
        	if (t_2 <= -1e-39) {
        		tmp = t_1;
        	} else if (t_2 <= 1e+109) {
        		tmp = fma(27.0, (a * b), (x * 2.0));
        	} else {
        		tmp = t_1;
        	}
        	return tmp;
        }
        
        x, y, z, t, a, b = sort([x, y, z, t, a, b])
        function code(x, y, z, t, a, b)
        	t_1 = fma(t, Float64(-9.0 * Float64(y * z)), Float64(27.0 * Float64(a * b)))
        	t_2 = Float64(t * Float64(Float64(y * 9.0) * z))
        	tmp = 0.0
        	if (t_2 <= -1e-39)
        		tmp = t_1;
        	elseif (t_2 <= 1e+109)
        		tmp = fma(27.0, Float64(a * b), Float64(x * 2.0));
        	else
        		tmp = t_1;
        	end
        	return tmp
        end
        
        NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
        code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(t * N[(-9.0 * N[(y * z), $MachinePrecision]), $MachinePrecision] + N[(27.0 * N[(a * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(t * N[(N[(y * 9.0), $MachinePrecision] * z), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$2, -1e-39], t$95$1, If[LessEqual[t$95$2, 1e+109], N[(27.0 * N[(a * b), $MachinePrecision] + N[(x * 2.0), $MachinePrecision]), $MachinePrecision], t$95$1]]]]
        
        \begin{array}{l}
        [x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\
        \\
        \begin{array}{l}
        t_1 := \mathsf{fma}\left(t, -9 \cdot \left(y \cdot z\right), 27 \cdot \left(a \cdot b\right)\right)\\
        t_2 := t \cdot \left(\left(y \cdot 9\right) \cdot z\right)\\
        \mathbf{if}\;t\_2 \leq -1 \cdot 10^{-39}:\\
        \;\;\;\;t\_1\\
        
        \mathbf{elif}\;t\_2 \leq 10^{+109}:\\
        \;\;\;\;\mathsf{fma}\left(27, a \cdot b, x \cdot 2\right)\\
        
        \mathbf{else}:\\
        \;\;\;\;t\_1\\
        
        
        \end{array}
        \end{array}
        
        Derivation
        1. Split input into 2 regimes
        2. if (*.f64 (*.f64 (*.f64 y #s(literal 9 binary64)) z) t) < -9.99999999999999929e-40 or 9.99999999999999982e108 < (*.f64 (*.f64 (*.f64 y #s(literal 9 binary64)) z) t)

          1. Initial program 85.9%

            \[\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b \]
          2. Add Preprocessing
          3. Taylor expanded in x around 0

            \[\leadsto \color{blue}{27 \cdot \left(a \cdot b\right) - 9 \cdot \left(t \cdot \left(y \cdot z\right)\right)} \]
          4. Step-by-step derivation
            1. cancel-sign-sub-invN/A

              \[\leadsto \color{blue}{27 \cdot \left(a \cdot b\right) + \left(\mathsf{neg}\left(9\right)\right) \cdot \left(t \cdot \left(y \cdot z\right)\right)} \]
            2. metadata-evalN/A

              \[\leadsto 27 \cdot \left(a \cdot b\right) + \color{blue}{-9} \cdot \left(t \cdot \left(y \cdot z\right)\right) \]
            3. +-commutativeN/A

              \[\leadsto \color{blue}{-9 \cdot \left(t \cdot \left(y \cdot z\right)\right) + 27 \cdot \left(a \cdot b\right)} \]
            4. *-commutativeN/A

              \[\leadsto \color{blue}{\left(t \cdot \left(y \cdot z\right)\right) \cdot -9} + 27 \cdot \left(a \cdot b\right) \]
            5. associate-*l*N/A

              \[\leadsto \color{blue}{t \cdot \left(\left(y \cdot z\right) \cdot -9\right)} + 27 \cdot \left(a \cdot b\right) \]
            6. *-commutativeN/A

              \[\leadsto t \cdot \color{blue}{\left(-9 \cdot \left(y \cdot z\right)\right)} + 27 \cdot \left(a \cdot b\right) \]
            7. lower-fma.f64N/A

              \[\leadsto \color{blue}{\mathsf{fma}\left(t, -9 \cdot \left(y \cdot z\right), 27 \cdot \left(a \cdot b\right)\right)} \]
            8. *-commutativeN/A

              \[\leadsto \mathsf{fma}\left(t, \color{blue}{\left(y \cdot z\right) \cdot -9}, 27 \cdot \left(a \cdot b\right)\right) \]
            9. lower-*.f64N/A

              \[\leadsto \mathsf{fma}\left(t, \color{blue}{\left(y \cdot z\right) \cdot -9}, 27 \cdot \left(a \cdot b\right)\right) \]
            10. lower-*.f64N/A

              \[\leadsto \mathsf{fma}\left(t, \color{blue}{\left(y \cdot z\right)} \cdot -9, 27 \cdot \left(a \cdot b\right)\right) \]
            11. lower-*.f64N/A

              \[\leadsto \mathsf{fma}\left(t, \left(y \cdot z\right) \cdot -9, \color{blue}{27 \cdot \left(a \cdot b\right)}\right) \]
            12. lower-*.f6482.8

              \[\leadsto \mathsf{fma}\left(t, \left(y \cdot z\right) \cdot -9, 27 \cdot \color{blue}{\left(a \cdot b\right)}\right) \]
          5. Applied rewrites82.8%

            \[\leadsto \color{blue}{\mathsf{fma}\left(t, \left(y \cdot z\right) \cdot -9, 27 \cdot \left(a \cdot b\right)\right)} \]

          if -9.99999999999999929e-40 < (*.f64 (*.f64 (*.f64 y #s(literal 9 binary64)) z) t) < 9.99999999999999982e108

          1. Initial program 99.7%

            \[\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b \]
          2. Add Preprocessing
          3. Taylor expanded in y around 0

            \[\leadsto \color{blue}{2 \cdot x + 27 \cdot \left(a \cdot b\right)} \]
          4. Step-by-step derivation
            1. +-commutativeN/A

              \[\leadsto \color{blue}{27 \cdot \left(a \cdot b\right) + 2 \cdot x} \]
            2. lower-fma.f64N/A

              \[\leadsto \color{blue}{\mathsf{fma}\left(27, a \cdot b, 2 \cdot x\right)} \]
            3. lower-*.f64N/A

              \[\leadsto \mathsf{fma}\left(27, \color{blue}{a \cdot b}, 2 \cdot x\right) \]
            4. lower-*.f6494.5

              \[\leadsto \mathsf{fma}\left(27, a \cdot b, \color{blue}{2 \cdot x}\right) \]
          5. Applied rewrites94.5%

            \[\leadsto \color{blue}{\mathsf{fma}\left(27, a \cdot b, 2 \cdot x\right)} \]
        3. Recombined 2 regimes into one program.
        4. Final simplification89.0%

          \[\leadsto \begin{array}{l} \mathbf{if}\;t \cdot \left(\left(y \cdot 9\right) \cdot z\right) \leq -1 \cdot 10^{-39}:\\ \;\;\;\;\mathsf{fma}\left(t, -9 \cdot \left(y \cdot z\right), 27 \cdot \left(a \cdot b\right)\right)\\ \mathbf{elif}\;t \cdot \left(\left(y \cdot 9\right) \cdot z\right) \leq 10^{+109}:\\ \;\;\;\;\mathsf{fma}\left(27, a \cdot b, x \cdot 2\right)\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(t, -9 \cdot \left(y \cdot z\right), 27 \cdot \left(a \cdot b\right)\right)\\ \end{array} \]
        5. Add Preprocessing

        Alternative 7: 84.9% accurate, 0.6× speedup?

        \[\begin{array}{l} [x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\ \\ \begin{array}{l} t_1 := t \cdot \left(\left(y \cdot 9\right) \cdot z\right)\\ \mathbf{if}\;t\_1 \leq -5 \cdot 10^{+90}:\\ \;\;\;\;\mathsf{fma}\left(t, -9 \cdot \left(y \cdot z\right), x \cdot 2\right)\\ \mathbf{elif}\;t\_1 \leq 10^{+208}:\\ \;\;\;\;\mathsf{fma}\left(27, a \cdot b, x \cdot 2\right)\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(y, \left(z \cdot -9\right) \cdot t, x \cdot 2\right)\\ \end{array} \end{array} \]
        NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
        (FPCore (x y z t a b)
         :precision binary64
         (let* ((t_1 (* t (* (* y 9.0) z))))
           (if (<= t_1 -5e+90)
             (fma t (* -9.0 (* y z)) (* x 2.0))
             (if (<= t_1 1e+208)
               (fma 27.0 (* a b) (* x 2.0))
               (fma y (* (* z -9.0) t) (* x 2.0))))))
        assert(x < y && y < z && z < t && t < a && a < b);
        double code(double x, double y, double z, double t, double a, double b) {
        	double t_1 = t * ((y * 9.0) * z);
        	double tmp;
        	if (t_1 <= -5e+90) {
        		tmp = fma(t, (-9.0 * (y * z)), (x * 2.0));
        	} else if (t_1 <= 1e+208) {
        		tmp = fma(27.0, (a * b), (x * 2.0));
        	} else {
        		tmp = fma(y, ((z * -9.0) * t), (x * 2.0));
        	}
        	return tmp;
        }
        
        x, y, z, t, a, b = sort([x, y, z, t, a, b])
        function code(x, y, z, t, a, b)
        	t_1 = Float64(t * Float64(Float64(y * 9.0) * z))
        	tmp = 0.0
        	if (t_1 <= -5e+90)
        		tmp = fma(t, Float64(-9.0 * Float64(y * z)), Float64(x * 2.0));
        	elseif (t_1 <= 1e+208)
        		tmp = fma(27.0, Float64(a * b), Float64(x * 2.0));
        	else
        		tmp = fma(y, Float64(Float64(z * -9.0) * t), Float64(x * 2.0));
        	end
        	return tmp
        end
        
        NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
        code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(t * N[(N[(y * 9.0), $MachinePrecision] * z), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$1, -5e+90], N[(t * N[(-9.0 * N[(y * z), $MachinePrecision]), $MachinePrecision] + N[(x * 2.0), $MachinePrecision]), $MachinePrecision], If[LessEqual[t$95$1, 1e+208], N[(27.0 * N[(a * b), $MachinePrecision] + N[(x * 2.0), $MachinePrecision]), $MachinePrecision], N[(y * N[(N[(z * -9.0), $MachinePrecision] * t), $MachinePrecision] + N[(x * 2.0), $MachinePrecision]), $MachinePrecision]]]]
        
        \begin{array}{l}
        [x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\
        \\
        \begin{array}{l}
        t_1 := t \cdot \left(\left(y \cdot 9\right) \cdot z\right)\\
        \mathbf{if}\;t\_1 \leq -5 \cdot 10^{+90}:\\
        \;\;\;\;\mathsf{fma}\left(t, -9 \cdot \left(y \cdot z\right), x \cdot 2\right)\\
        
        \mathbf{elif}\;t\_1 \leq 10^{+208}:\\
        \;\;\;\;\mathsf{fma}\left(27, a \cdot b, x \cdot 2\right)\\
        
        \mathbf{else}:\\
        \;\;\;\;\mathsf{fma}\left(y, \left(z \cdot -9\right) \cdot t, x \cdot 2\right)\\
        
        
        \end{array}
        \end{array}
        
        Derivation
        1. Split input into 3 regimes
        2. if (*.f64 (*.f64 (*.f64 y #s(literal 9 binary64)) z) t) < -5.0000000000000004e90

          1. Initial program 83.0%

            \[\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b \]
          2. Add Preprocessing
          3. Taylor expanded in a around 0

            \[\leadsto \color{blue}{2 \cdot x - 9 \cdot \left(t \cdot \left(y \cdot z\right)\right)} \]
          4. Step-by-step derivation
            1. cancel-sign-sub-invN/A

              \[\leadsto \color{blue}{2 \cdot x + \left(\mathsf{neg}\left(9\right)\right) \cdot \left(t \cdot \left(y \cdot z\right)\right)} \]
            2. metadata-evalN/A

              \[\leadsto 2 \cdot x + \color{blue}{-9} \cdot \left(t \cdot \left(y \cdot z\right)\right) \]
            3. +-commutativeN/A

              \[\leadsto \color{blue}{-9 \cdot \left(t \cdot \left(y \cdot z\right)\right) + 2 \cdot x} \]
            4. *-commutativeN/A

              \[\leadsto \color{blue}{\left(t \cdot \left(y \cdot z\right)\right) \cdot -9} + 2 \cdot x \]
            5. associate-*l*N/A

              \[\leadsto \color{blue}{t \cdot \left(\left(y \cdot z\right) \cdot -9\right)} + 2 \cdot x \]
            6. *-commutativeN/A

              \[\leadsto t \cdot \color{blue}{\left(-9 \cdot \left(y \cdot z\right)\right)} + 2 \cdot x \]
            7. lower-fma.f64N/A

              \[\leadsto \color{blue}{\mathsf{fma}\left(t, -9 \cdot \left(y \cdot z\right), 2 \cdot x\right)} \]
            8. *-commutativeN/A

              \[\leadsto \mathsf{fma}\left(t, \color{blue}{\left(y \cdot z\right) \cdot -9}, 2 \cdot x\right) \]
            9. lower-*.f64N/A

              \[\leadsto \mathsf{fma}\left(t, \color{blue}{\left(y \cdot z\right) \cdot -9}, 2 \cdot x\right) \]
            10. lower-*.f64N/A

              \[\leadsto \mathsf{fma}\left(t, \color{blue}{\left(y \cdot z\right)} \cdot -9, 2 \cdot x\right) \]
            11. lower-*.f6479.3

              \[\leadsto \mathsf{fma}\left(t, \left(y \cdot z\right) \cdot -9, \color{blue}{2 \cdot x}\right) \]
          5. Applied rewrites79.3%

            \[\leadsto \color{blue}{\mathsf{fma}\left(t, \left(y \cdot z\right) \cdot -9, 2 \cdot x\right)} \]

          if -5.0000000000000004e90 < (*.f64 (*.f64 (*.f64 y #s(literal 9 binary64)) z) t) < 9.9999999999999998e207

          1. Initial program 99.8%

            \[\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b \]
          2. Add Preprocessing
          3. Taylor expanded in y around 0

            \[\leadsto \color{blue}{2 \cdot x + 27 \cdot \left(a \cdot b\right)} \]
          4. Step-by-step derivation
            1. +-commutativeN/A

              \[\leadsto \color{blue}{27 \cdot \left(a \cdot b\right) + 2 \cdot x} \]
            2. lower-fma.f64N/A

              \[\leadsto \color{blue}{\mathsf{fma}\left(27, a \cdot b, 2 \cdot x\right)} \]
            3. lower-*.f64N/A

              \[\leadsto \mathsf{fma}\left(27, \color{blue}{a \cdot b}, 2 \cdot x\right) \]
            4. lower-*.f6490.2

              \[\leadsto \mathsf{fma}\left(27, a \cdot b, \color{blue}{2 \cdot x}\right) \]
          5. Applied rewrites90.2%

            \[\leadsto \color{blue}{\mathsf{fma}\left(27, a \cdot b, 2 \cdot x\right)} \]

          if 9.9999999999999998e207 < (*.f64 (*.f64 (*.f64 y #s(literal 9 binary64)) z) t)

          1. Initial program 78.9%

            \[\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b \]
          2. Add Preprocessing
          3. Step-by-step derivation
            1. lift-+.f64N/A

              \[\leadsto \color{blue}{\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b} \]
            2. lift--.f64N/A

              \[\leadsto \color{blue}{\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right)} + \left(a \cdot 27\right) \cdot b \]
            3. sub-negN/A

              \[\leadsto \color{blue}{\left(x \cdot 2 + \left(\mathsf{neg}\left(\left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right)\right)\right)} + \left(a \cdot 27\right) \cdot b \]
            4. +-commutativeN/A

              \[\leadsto \color{blue}{\left(\left(\mathsf{neg}\left(\left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right)\right) + x \cdot 2\right)} + \left(a \cdot 27\right) \cdot b \]
            5. associate-+l+N/A

              \[\leadsto \color{blue}{\left(\mathsf{neg}\left(\left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right)\right) + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right)} \]
            6. lift-*.f64N/A

              \[\leadsto \left(\mathsf{neg}\left(\color{blue}{\left(\left(y \cdot 9\right) \cdot z\right) \cdot t}\right)\right) + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
            7. distribute-lft-neg-inN/A

              \[\leadsto \color{blue}{\left(\mathsf{neg}\left(\left(y \cdot 9\right) \cdot z\right)\right) \cdot t} + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
            8. lift-*.f64N/A

              \[\leadsto \left(\mathsf{neg}\left(\color{blue}{\left(y \cdot 9\right) \cdot z}\right)\right) \cdot t + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
            9. lift-*.f64N/A

              \[\leadsto \left(\mathsf{neg}\left(\color{blue}{\left(y \cdot 9\right)} \cdot z\right)\right) \cdot t + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
            10. associate-*l*N/A

              \[\leadsto \left(\mathsf{neg}\left(\color{blue}{y \cdot \left(9 \cdot z\right)}\right)\right) \cdot t + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
            11. distribute-rgt-neg-inN/A

              \[\leadsto \color{blue}{\left(y \cdot \left(\mathsf{neg}\left(9 \cdot z\right)\right)\right)} \cdot t + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
            12. associate-*l*N/A

              \[\leadsto \color{blue}{y \cdot \left(\left(\mathsf{neg}\left(9 \cdot z\right)\right) \cdot t\right)} + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
            13. +-commutativeN/A

              \[\leadsto y \cdot \left(\left(\mathsf{neg}\left(9 \cdot z\right)\right) \cdot t\right) + \color{blue}{\left(\left(a \cdot 27\right) \cdot b + x \cdot 2\right)} \]
            14. lower-fma.f64N/A

              \[\leadsto \color{blue}{\mathsf{fma}\left(y, \left(\mathsf{neg}\left(9 \cdot z\right)\right) \cdot t, \left(a \cdot 27\right) \cdot b + x \cdot 2\right)} \]
          4. Applied rewrites86.9%

            \[\leadsto \color{blue}{\mathsf{fma}\left(y, \left(z \cdot -9\right) \cdot t, \mathsf{fma}\left(a, 27 \cdot b, x \cdot 2\right)\right)} \]
          5. Taylor expanded in a around 0

            \[\leadsto \mathsf{fma}\left(y, \left(z \cdot -9\right) \cdot t, \color{blue}{2 \cdot x}\right) \]
          6. Step-by-step derivation
            1. lower-*.f6479.2

              \[\leadsto \mathsf{fma}\left(y, \left(z \cdot -9\right) \cdot t, \color{blue}{2 \cdot x}\right) \]
          7. Applied rewrites79.2%

            \[\leadsto \mathsf{fma}\left(y, \left(z \cdot -9\right) \cdot t, \color{blue}{2 \cdot x}\right) \]
        3. Recombined 3 regimes into one program.
        4. Final simplification86.4%

          \[\leadsto \begin{array}{l} \mathbf{if}\;t \cdot \left(\left(y \cdot 9\right) \cdot z\right) \leq -5 \cdot 10^{+90}:\\ \;\;\;\;\mathsf{fma}\left(t, -9 \cdot \left(y \cdot z\right), x \cdot 2\right)\\ \mathbf{elif}\;t \cdot \left(\left(y \cdot 9\right) \cdot z\right) \leq 10^{+208}:\\ \;\;\;\;\mathsf{fma}\left(27, a \cdot b, x \cdot 2\right)\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(y, \left(z \cdot -9\right) \cdot t, x \cdot 2\right)\\ \end{array} \]
        5. Add Preprocessing

        Alternative 8: 85.0% accurate, 0.6× speedup?

        \[\begin{array}{l} [x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\ \\ \begin{array}{l} t_1 := \mathsf{fma}\left(t, -9 \cdot \left(y \cdot z\right), x \cdot 2\right)\\ t_2 := t \cdot \left(\left(y \cdot 9\right) \cdot z\right)\\ \mathbf{if}\;t\_2 \leq -5 \cdot 10^{+90}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;t\_2 \leq 10^{+157}:\\ \;\;\;\;\mathsf{fma}\left(27, a \cdot b, x \cdot 2\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
        NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
        (FPCore (x y z t a b)
         :precision binary64
         (let* ((t_1 (fma t (* -9.0 (* y z)) (* x 2.0))) (t_2 (* t (* (* y 9.0) z))))
           (if (<= t_2 -5e+90)
             t_1
             (if (<= t_2 1e+157) (fma 27.0 (* a b) (* x 2.0)) t_1))))
        assert(x < y && y < z && z < t && t < a && a < b);
        double code(double x, double y, double z, double t, double a, double b) {
        	double t_1 = fma(t, (-9.0 * (y * z)), (x * 2.0));
        	double t_2 = t * ((y * 9.0) * z);
        	double tmp;
        	if (t_2 <= -5e+90) {
        		tmp = t_1;
        	} else if (t_2 <= 1e+157) {
        		tmp = fma(27.0, (a * b), (x * 2.0));
        	} else {
        		tmp = t_1;
        	}
        	return tmp;
        }
        
        x, y, z, t, a, b = sort([x, y, z, t, a, b])
        function code(x, y, z, t, a, b)
        	t_1 = fma(t, Float64(-9.0 * Float64(y * z)), Float64(x * 2.0))
        	t_2 = Float64(t * Float64(Float64(y * 9.0) * z))
        	tmp = 0.0
        	if (t_2 <= -5e+90)
        		tmp = t_1;
        	elseif (t_2 <= 1e+157)
        		tmp = fma(27.0, Float64(a * b), Float64(x * 2.0));
        	else
        		tmp = t_1;
        	end
        	return tmp
        end
        
        NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
        code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(t * N[(-9.0 * N[(y * z), $MachinePrecision]), $MachinePrecision] + N[(x * 2.0), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(t * N[(N[(y * 9.0), $MachinePrecision] * z), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$2, -5e+90], t$95$1, If[LessEqual[t$95$2, 1e+157], N[(27.0 * N[(a * b), $MachinePrecision] + N[(x * 2.0), $MachinePrecision]), $MachinePrecision], t$95$1]]]]
        
        \begin{array}{l}
        [x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\
        \\
        \begin{array}{l}
        t_1 := \mathsf{fma}\left(t, -9 \cdot \left(y \cdot z\right), x \cdot 2\right)\\
        t_2 := t \cdot \left(\left(y \cdot 9\right) \cdot z\right)\\
        \mathbf{if}\;t\_2 \leq -5 \cdot 10^{+90}:\\
        \;\;\;\;t\_1\\
        
        \mathbf{elif}\;t\_2 \leq 10^{+157}:\\
        \;\;\;\;\mathsf{fma}\left(27, a \cdot b, x \cdot 2\right)\\
        
        \mathbf{else}:\\
        \;\;\;\;t\_1\\
        
        
        \end{array}
        \end{array}
        
        Derivation
        1. Split input into 2 regimes
        2. if (*.f64 (*.f64 (*.f64 y #s(literal 9 binary64)) z) t) < -5.0000000000000004e90 or 9.99999999999999983e156 < (*.f64 (*.f64 (*.f64 y #s(literal 9 binary64)) z) t)

          1. Initial program 81.9%

            \[\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b \]
          2. Add Preprocessing
          3. Taylor expanded in a around 0

            \[\leadsto \color{blue}{2 \cdot x - 9 \cdot \left(t \cdot \left(y \cdot z\right)\right)} \]
          4. Step-by-step derivation
            1. cancel-sign-sub-invN/A

              \[\leadsto \color{blue}{2 \cdot x + \left(\mathsf{neg}\left(9\right)\right) \cdot \left(t \cdot \left(y \cdot z\right)\right)} \]
            2. metadata-evalN/A

              \[\leadsto 2 \cdot x + \color{blue}{-9} \cdot \left(t \cdot \left(y \cdot z\right)\right) \]
            3. +-commutativeN/A

              \[\leadsto \color{blue}{-9 \cdot \left(t \cdot \left(y \cdot z\right)\right) + 2 \cdot x} \]
            4. *-commutativeN/A

              \[\leadsto \color{blue}{\left(t \cdot \left(y \cdot z\right)\right) \cdot -9} + 2 \cdot x \]
            5. associate-*l*N/A

              \[\leadsto \color{blue}{t \cdot \left(\left(y \cdot z\right) \cdot -9\right)} + 2 \cdot x \]
            6. *-commutativeN/A

              \[\leadsto t \cdot \color{blue}{\left(-9 \cdot \left(y \cdot z\right)\right)} + 2 \cdot x \]
            7. lower-fma.f64N/A

              \[\leadsto \color{blue}{\mathsf{fma}\left(t, -9 \cdot \left(y \cdot z\right), 2 \cdot x\right)} \]
            8. *-commutativeN/A

              \[\leadsto \mathsf{fma}\left(t, \color{blue}{\left(y \cdot z\right) \cdot -9}, 2 \cdot x\right) \]
            9. lower-*.f64N/A

              \[\leadsto \mathsf{fma}\left(t, \color{blue}{\left(y \cdot z\right) \cdot -9}, 2 \cdot x\right) \]
            10. lower-*.f64N/A

              \[\leadsto \mathsf{fma}\left(t, \color{blue}{\left(y \cdot z\right)} \cdot -9, 2 \cdot x\right) \]
            11. lower-*.f6478.8

              \[\leadsto \mathsf{fma}\left(t, \left(y \cdot z\right) \cdot -9, \color{blue}{2 \cdot x}\right) \]
          5. Applied rewrites78.8%

            \[\leadsto \color{blue}{\mathsf{fma}\left(t, \left(y \cdot z\right) \cdot -9, 2 \cdot x\right)} \]

          if -5.0000000000000004e90 < (*.f64 (*.f64 (*.f64 y #s(literal 9 binary64)) z) t) < 9.99999999999999983e156

          1. Initial program 99.8%

            \[\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b \]
          2. Add Preprocessing
          3. Taylor expanded in y around 0

            \[\leadsto \color{blue}{2 \cdot x + 27 \cdot \left(a \cdot b\right)} \]
          4. Step-by-step derivation
            1. +-commutativeN/A

              \[\leadsto \color{blue}{27 \cdot \left(a \cdot b\right) + 2 \cdot x} \]
            2. lower-fma.f64N/A

              \[\leadsto \color{blue}{\mathsf{fma}\left(27, a \cdot b, 2 \cdot x\right)} \]
            3. lower-*.f64N/A

              \[\leadsto \mathsf{fma}\left(27, \color{blue}{a \cdot b}, 2 \cdot x\right) \]
            4. lower-*.f6491.2

              \[\leadsto \mathsf{fma}\left(27, a \cdot b, \color{blue}{2 \cdot x}\right) \]
          5. Applied rewrites91.2%

            \[\leadsto \color{blue}{\mathsf{fma}\left(27, a \cdot b, 2 \cdot x\right)} \]
        3. Recombined 2 regimes into one program.
        4. Final simplification86.7%

          \[\leadsto \begin{array}{l} \mathbf{if}\;t \cdot \left(\left(y \cdot 9\right) \cdot z\right) \leq -5 \cdot 10^{+90}:\\ \;\;\;\;\mathsf{fma}\left(t, -9 \cdot \left(y \cdot z\right), x \cdot 2\right)\\ \mathbf{elif}\;t \cdot \left(\left(y \cdot 9\right) \cdot z\right) \leq 10^{+157}:\\ \;\;\;\;\mathsf{fma}\left(27, a \cdot b, x \cdot 2\right)\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(t, -9 \cdot \left(y \cdot z\right), x \cdot 2\right)\\ \end{array} \]
        5. Add Preprocessing

        Alternative 9: 83.4% accurate, 0.6× speedup?

        \[\begin{array}{l} [x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\ \\ \begin{array}{l} t_1 := t \cdot \left(\left(y \cdot 9\right) \cdot z\right)\\ \mathbf{if}\;t\_1 \leq -2 \cdot 10^{+105}:\\ \;\;\;\;t \cdot \left(y \cdot \left(z \cdot -9\right)\right)\\ \mathbf{elif}\;t\_1 \leq 10^{+208}:\\ \;\;\;\;\mathsf{fma}\left(27, a \cdot b, x \cdot 2\right)\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(\left(z \cdot -9\right) \cdot t\right)\\ \end{array} \end{array} \]
        NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
        (FPCore (x y z t a b)
         :precision binary64
         (let* ((t_1 (* t (* (* y 9.0) z))))
           (if (<= t_1 -2e+105)
             (* t (* y (* z -9.0)))
             (if (<= t_1 1e+208)
               (fma 27.0 (* a b) (* x 2.0))
               (* y (* (* z -9.0) t))))))
        assert(x < y && y < z && z < t && t < a && a < b);
        double code(double x, double y, double z, double t, double a, double b) {
        	double t_1 = t * ((y * 9.0) * z);
        	double tmp;
        	if (t_1 <= -2e+105) {
        		tmp = t * (y * (z * -9.0));
        	} else if (t_1 <= 1e+208) {
        		tmp = fma(27.0, (a * b), (x * 2.0));
        	} else {
        		tmp = y * ((z * -9.0) * t);
        	}
        	return tmp;
        }
        
        x, y, z, t, a, b = sort([x, y, z, t, a, b])
        function code(x, y, z, t, a, b)
        	t_1 = Float64(t * Float64(Float64(y * 9.0) * z))
        	tmp = 0.0
        	if (t_1 <= -2e+105)
        		tmp = Float64(t * Float64(y * Float64(z * -9.0)));
        	elseif (t_1 <= 1e+208)
        		tmp = fma(27.0, Float64(a * b), Float64(x * 2.0));
        	else
        		tmp = Float64(y * Float64(Float64(z * -9.0) * t));
        	end
        	return tmp
        end
        
        NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
        code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(t * N[(N[(y * 9.0), $MachinePrecision] * z), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$1, -2e+105], N[(t * N[(y * N[(z * -9.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[t$95$1, 1e+208], N[(27.0 * N[(a * b), $MachinePrecision] + N[(x * 2.0), $MachinePrecision]), $MachinePrecision], N[(y * N[(N[(z * -9.0), $MachinePrecision] * t), $MachinePrecision]), $MachinePrecision]]]]
        
        \begin{array}{l}
        [x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\
        \\
        \begin{array}{l}
        t_1 := t \cdot \left(\left(y \cdot 9\right) \cdot z\right)\\
        \mathbf{if}\;t\_1 \leq -2 \cdot 10^{+105}:\\
        \;\;\;\;t \cdot \left(y \cdot \left(z \cdot -9\right)\right)\\
        
        \mathbf{elif}\;t\_1 \leq 10^{+208}:\\
        \;\;\;\;\mathsf{fma}\left(27, a \cdot b, x \cdot 2\right)\\
        
        \mathbf{else}:\\
        \;\;\;\;y \cdot \left(\left(z \cdot -9\right) \cdot t\right)\\
        
        
        \end{array}
        \end{array}
        
        Derivation
        1. Split input into 3 regimes
        2. if (*.f64 (*.f64 (*.f64 y #s(literal 9 binary64)) z) t) < -1.9999999999999999e105

          1. Initial program 82.3%

            \[\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b \]
          2. Add Preprocessing
          3. Taylor expanded in y around inf

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

              \[\leadsto \color{blue}{\left(t \cdot \left(y \cdot z\right)\right) \cdot -9} \]
            2. associate-*l*N/A

              \[\leadsto \color{blue}{t \cdot \left(\left(y \cdot z\right) \cdot -9\right)} \]
            3. *-commutativeN/A

              \[\leadsto t \cdot \color{blue}{\left(-9 \cdot \left(y \cdot z\right)\right)} \]
            4. lower-*.f64N/A

              \[\leadsto \color{blue}{t \cdot \left(-9 \cdot \left(y \cdot z\right)\right)} \]
            5. *-commutativeN/A

              \[\leadsto t \cdot \color{blue}{\left(\left(y \cdot z\right) \cdot -9\right)} \]
            6. lower-*.f64N/A

              \[\leadsto t \cdot \color{blue}{\left(\left(y \cdot z\right) \cdot -9\right)} \]
            7. lower-*.f6478.4

              \[\leadsto t \cdot \left(\color{blue}{\left(y \cdot z\right)} \cdot -9\right) \]
          5. Applied rewrites78.4%

            \[\leadsto \color{blue}{t \cdot \left(\left(y \cdot z\right) \cdot -9\right)} \]
          6. Step-by-step derivation
            1. Applied rewrites78.5%

              \[\leadsto t \cdot \left(\left(z \cdot -9\right) \cdot \color{blue}{y}\right) \]

            if -1.9999999999999999e105 < (*.f64 (*.f64 (*.f64 y #s(literal 9 binary64)) z) t) < 9.9999999999999998e207

            1. Initial program 99.8%

              \[\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b \]
            2. Add Preprocessing
            3. Taylor expanded in y around 0

              \[\leadsto \color{blue}{2 \cdot x + 27 \cdot \left(a \cdot b\right)} \]
            4. Step-by-step derivation
              1. +-commutativeN/A

                \[\leadsto \color{blue}{27 \cdot \left(a \cdot b\right) + 2 \cdot x} \]
              2. lower-fma.f64N/A

                \[\leadsto \color{blue}{\mathsf{fma}\left(27, a \cdot b, 2 \cdot x\right)} \]
              3. lower-*.f64N/A

                \[\leadsto \mathsf{fma}\left(27, \color{blue}{a \cdot b}, 2 \cdot x\right) \]
              4. lower-*.f6490.3

                \[\leadsto \mathsf{fma}\left(27, a \cdot b, \color{blue}{2 \cdot x}\right) \]
            5. Applied rewrites90.3%

              \[\leadsto \color{blue}{\mathsf{fma}\left(27, a \cdot b, 2 \cdot x\right)} \]

            if 9.9999999999999998e207 < (*.f64 (*.f64 (*.f64 y #s(literal 9 binary64)) z) t)

            1. Initial program 78.9%

              \[\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b \]
            2. Add Preprocessing
            3. Taylor expanded in y around inf

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

                \[\leadsto \color{blue}{\left(t \cdot \left(y \cdot z\right)\right) \cdot -9} \]
              2. associate-*l*N/A

                \[\leadsto \color{blue}{t \cdot \left(\left(y \cdot z\right) \cdot -9\right)} \]
              3. *-commutativeN/A

                \[\leadsto t \cdot \color{blue}{\left(-9 \cdot \left(y \cdot z\right)\right)} \]
              4. lower-*.f64N/A

                \[\leadsto \color{blue}{t \cdot \left(-9 \cdot \left(y \cdot z\right)\right)} \]
              5. *-commutativeN/A

                \[\leadsto t \cdot \color{blue}{\left(\left(y \cdot z\right) \cdot -9\right)} \]
              6. lower-*.f64N/A

                \[\leadsto t \cdot \color{blue}{\left(\left(y \cdot z\right) \cdot -9\right)} \]
              7. lower-*.f6476.6

                \[\leadsto t \cdot \left(\color{blue}{\left(y \cdot z\right)} \cdot -9\right) \]
            5. Applied rewrites76.6%

              \[\leadsto \color{blue}{t \cdot \left(\left(y \cdot z\right) \cdot -9\right)} \]
            6. Step-by-step derivation
              1. Applied rewrites74.0%

                \[\leadsto \left(t \cdot \left(z \cdot -9\right)\right) \cdot \color{blue}{y} \]
            7. Recombined 3 regimes into one program.
            8. Final simplification85.6%

              \[\leadsto \begin{array}{l} \mathbf{if}\;t \cdot \left(\left(y \cdot 9\right) \cdot z\right) \leq -2 \cdot 10^{+105}:\\ \;\;\;\;t \cdot \left(y \cdot \left(z \cdot -9\right)\right)\\ \mathbf{elif}\;t \cdot \left(\left(y \cdot 9\right) \cdot z\right) \leq 10^{+208}:\\ \;\;\;\;\mathsf{fma}\left(27, a \cdot b, x \cdot 2\right)\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(\left(z \cdot -9\right) \cdot t\right)\\ \end{array} \]
            9. Add Preprocessing

            Alternative 10: 53.6% accurate, 0.9× speedup?

            \[\begin{array}{l} [x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\ \\ \begin{array}{l} t_1 := b \cdot \left(a \cdot 27\right)\\ \mathbf{if}\;t\_1 \leq -5 \cdot 10^{+37}:\\ \;\;\;\;27 \cdot \left(a \cdot b\right)\\ \mathbf{elif}\;t\_1 \leq 10^{+79}:\\ \;\;\;\;x \cdot 2\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
            NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
            (FPCore (x y z t a b)
             :precision binary64
             (let* ((t_1 (* b (* a 27.0))))
               (if (<= t_1 -5e+37) (* 27.0 (* a b)) (if (<= t_1 1e+79) (* x 2.0) t_1))))
            assert(x < y && y < z && z < t && t < a && a < b);
            double code(double x, double y, double z, double t, double a, double b) {
            	double t_1 = b * (a * 27.0);
            	double tmp;
            	if (t_1 <= -5e+37) {
            		tmp = 27.0 * (a * b);
            	} else if (t_1 <= 1e+79) {
            		tmp = x * 2.0;
            	} else {
            		tmp = t_1;
            	}
            	return tmp;
            }
            
            NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
            real(8) function code(x, y, z, t, a, b)
                real(8), intent (in) :: x
                real(8), intent (in) :: y
                real(8), intent (in) :: z
                real(8), intent (in) :: t
                real(8), intent (in) :: a
                real(8), intent (in) :: b
                real(8) :: t_1
                real(8) :: tmp
                t_1 = b * (a * 27.0d0)
                if (t_1 <= (-5d+37)) then
                    tmp = 27.0d0 * (a * b)
                else if (t_1 <= 1d+79) then
                    tmp = x * 2.0d0
                else
                    tmp = t_1
                end if
                code = tmp
            end function
            
            assert x < y && y < z && z < t && t < a && a < b;
            public static double code(double x, double y, double z, double t, double a, double b) {
            	double t_1 = b * (a * 27.0);
            	double tmp;
            	if (t_1 <= -5e+37) {
            		tmp = 27.0 * (a * b);
            	} else if (t_1 <= 1e+79) {
            		tmp = x * 2.0;
            	} else {
            		tmp = t_1;
            	}
            	return tmp;
            }
            
            [x, y, z, t, a, b] = sort([x, y, z, t, a, b])
            def code(x, y, z, t, a, b):
            	t_1 = b * (a * 27.0)
            	tmp = 0
            	if t_1 <= -5e+37:
            		tmp = 27.0 * (a * b)
            	elif t_1 <= 1e+79:
            		tmp = x * 2.0
            	else:
            		tmp = t_1
            	return tmp
            
            x, y, z, t, a, b = sort([x, y, z, t, a, b])
            function code(x, y, z, t, a, b)
            	t_1 = Float64(b * Float64(a * 27.0))
            	tmp = 0.0
            	if (t_1 <= -5e+37)
            		tmp = Float64(27.0 * Float64(a * b));
            	elseif (t_1 <= 1e+79)
            		tmp = Float64(x * 2.0);
            	else
            		tmp = t_1;
            	end
            	return tmp
            end
            
            x, y, z, t, a, b = num2cell(sort([x, y, z, t, a, b])){:}
            function tmp_2 = code(x, y, z, t, a, b)
            	t_1 = b * (a * 27.0);
            	tmp = 0.0;
            	if (t_1 <= -5e+37)
            		tmp = 27.0 * (a * b);
            	elseif (t_1 <= 1e+79)
            		tmp = x * 2.0;
            	else
            		tmp = t_1;
            	end
            	tmp_2 = tmp;
            end
            
            NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
            code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(b * N[(a * 27.0), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$1, -5e+37], N[(27.0 * N[(a * b), $MachinePrecision]), $MachinePrecision], If[LessEqual[t$95$1, 1e+79], N[(x * 2.0), $MachinePrecision], t$95$1]]]
            
            \begin{array}{l}
            [x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\
            \\
            \begin{array}{l}
            t_1 := b \cdot \left(a \cdot 27\right)\\
            \mathbf{if}\;t\_1 \leq -5 \cdot 10^{+37}:\\
            \;\;\;\;27 \cdot \left(a \cdot b\right)\\
            
            \mathbf{elif}\;t\_1 \leq 10^{+79}:\\
            \;\;\;\;x \cdot 2\\
            
            \mathbf{else}:\\
            \;\;\;\;t\_1\\
            
            
            \end{array}
            \end{array}
            
            Derivation
            1. Split input into 3 regimes
            2. if (*.f64 (*.f64 a #s(literal 27 binary64)) b) < -4.99999999999999989e37

              1. Initial program 93.7%

                \[\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b \]
              2. Add Preprocessing
              3. Taylor expanded in a around inf

                \[\leadsto \color{blue}{27 \cdot \left(a \cdot b\right)} \]
              4. Step-by-step derivation
                1. lower-*.f64N/A

                  \[\leadsto \color{blue}{27 \cdot \left(a \cdot b\right)} \]
                2. lower-*.f6471.2

                  \[\leadsto 27 \cdot \color{blue}{\left(a \cdot b\right)} \]
              5. Applied rewrites71.2%

                \[\leadsto \color{blue}{27 \cdot \left(a \cdot b\right)} \]

              if -4.99999999999999989e37 < (*.f64 (*.f64 a #s(literal 27 binary64)) b) < 9.99999999999999967e78

              1. Initial program 95.1%

                \[\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b \]
              2. Add Preprocessing
              3. Taylor expanded in x around inf

                \[\leadsto \color{blue}{2 \cdot x} \]
              4. Step-by-step derivation
                1. lower-*.f6447.9

                  \[\leadsto \color{blue}{2 \cdot x} \]
              5. Applied rewrites47.9%

                \[\leadsto \color{blue}{2 \cdot x} \]

              if 9.99999999999999967e78 < (*.f64 (*.f64 a #s(literal 27 binary64)) b)

              1. Initial program 87.4%

                \[\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b \]
              2. Add Preprocessing
              3. Taylor expanded in a around inf

                \[\leadsto \color{blue}{27 \cdot \left(a \cdot b\right)} \]
              4. Step-by-step derivation
                1. lower-*.f64N/A

                  \[\leadsto \color{blue}{27 \cdot \left(a \cdot b\right)} \]
                2. lower-*.f6467.9

                  \[\leadsto 27 \cdot \color{blue}{\left(a \cdot b\right)} \]
              5. Applied rewrites67.9%

                \[\leadsto \color{blue}{27 \cdot \left(a \cdot b\right)} \]
              6. Step-by-step derivation
                1. Applied rewrites67.9%

                  \[\leadsto \left(27 \cdot a\right) \cdot \color{blue}{b} \]
              7. Recombined 3 regimes into one program.
              8. Final simplification57.5%

                \[\leadsto \begin{array}{l} \mathbf{if}\;b \cdot \left(a \cdot 27\right) \leq -5 \cdot 10^{+37}:\\ \;\;\;\;27 \cdot \left(a \cdot b\right)\\ \mathbf{elif}\;b \cdot \left(a \cdot 27\right) \leq 10^{+79}:\\ \;\;\;\;x \cdot 2\\ \mathbf{else}:\\ \;\;\;\;b \cdot \left(a \cdot 27\right)\\ \end{array} \]
              9. Add Preprocessing

              Alternative 11: 53.6% accurate, 0.9× speedup?

              \[\begin{array}{l} [x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\ \\ \begin{array}{l} t_1 := b \cdot \left(a \cdot 27\right)\\ t_2 := 27 \cdot \left(a \cdot b\right)\\ \mathbf{if}\;t\_1 \leq -5 \cdot 10^{+37}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;t\_1 \leq 10^{+79}:\\ \;\;\;\;x \cdot 2\\ \mathbf{else}:\\ \;\;\;\;t\_2\\ \end{array} \end{array} \]
              NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
              (FPCore (x y z t a b)
               :precision binary64
               (let* ((t_1 (* b (* a 27.0))) (t_2 (* 27.0 (* a b))))
                 (if (<= t_1 -5e+37) t_2 (if (<= t_1 1e+79) (* x 2.0) t_2))))
              assert(x < y && y < z && z < t && t < a && a < b);
              double code(double x, double y, double z, double t, double a, double b) {
              	double t_1 = b * (a * 27.0);
              	double t_2 = 27.0 * (a * b);
              	double tmp;
              	if (t_1 <= -5e+37) {
              		tmp = t_2;
              	} else if (t_1 <= 1e+79) {
              		tmp = x * 2.0;
              	} else {
              		tmp = t_2;
              	}
              	return tmp;
              }
              
              NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
              real(8) function code(x, y, z, t, a, b)
                  real(8), intent (in) :: x
                  real(8), intent (in) :: y
                  real(8), intent (in) :: z
                  real(8), intent (in) :: t
                  real(8), intent (in) :: a
                  real(8), intent (in) :: b
                  real(8) :: t_1
                  real(8) :: t_2
                  real(8) :: tmp
                  t_1 = b * (a * 27.0d0)
                  t_2 = 27.0d0 * (a * b)
                  if (t_1 <= (-5d+37)) then
                      tmp = t_2
                  else if (t_1 <= 1d+79) then
                      tmp = x * 2.0d0
                  else
                      tmp = t_2
                  end if
                  code = tmp
              end function
              
              assert x < y && y < z && z < t && t < a && a < b;
              public static double code(double x, double y, double z, double t, double a, double b) {
              	double t_1 = b * (a * 27.0);
              	double t_2 = 27.0 * (a * b);
              	double tmp;
              	if (t_1 <= -5e+37) {
              		tmp = t_2;
              	} else if (t_1 <= 1e+79) {
              		tmp = x * 2.0;
              	} else {
              		tmp = t_2;
              	}
              	return tmp;
              }
              
              [x, y, z, t, a, b] = sort([x, y, z, t, a, b])
              def code(x, y, z, t, a, b):
              	t_1 = b * (a * 27.0)
              	t_2 = 27.0 * (a * b)
              	tmp = 0
              	if t_1 <= -5e+37:
              		tmp = t_2
              	elif t_1 <= 1e+79:
              		tmp = x * 2.0
              	else:
              		tmp = t_2
              	return tmp
              
              x, y, z, t, a, b = sort([x, y, z, t, a, b])
              function code(x, y, z, t, a, b)
              	t_1 = Float64(b * Float64(a * 27.0))
              	t_2 = Float64(27.0 * Float64(a * b))
              	tmp = 0.0
              	if (t_1 <= -5e+37)
              		tmp = t_2;
              	elseif (t_1 <= 1e+79)
              		tmp = Float64(x * 2.0);
              	else
              		tmp = t_2;
              	end
              	return tmp
              end
              
              x, y, z, t, a, b = num2cell(sort([x, y, z, t, a, b])){:}
              function tmp_2 = code(x, y, z, t, a, b)
              	t_1 = b * (a * 27.0);
              	t_2 = 27.0 * (a * b);
              	tmp = 0.0;
              	if (t_1 <= -5e+37)
              		tmp = t_2;
              	elseif (t_1 <= 1e+79)
              		tmp = x * 2.0;
              	else
              		tmp = t_2;
              	end
              	tmp_2 = tmp;
              end
              
              NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
              code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(b * N[(a * 27.0), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(27.0 * N[(a * b), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$1, -5e+37], t$95$2, If[LessEqual[t$95$1, 1e+79], N[(x * 2.0), $MachinePrecision], t$95$2]]]]
              
              \begin{array}{l}
              [x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\
              \\
              \begin{array}{l}
              t_1 := b \cdot \left(a \cdot 27\right)\\
              t_2 := 27 \cdot \left(a \cdot b\right)\\
              \mathbf{if}\;t\_1 \leq -5 \cdot 10^{+37}:\\
              \;\;\;\;t\_2\\
              
              \mathbf{elif}\;t\_1 \leq 10^{+79}:\\
              \;\;\;\;x \cdot 2\\
              
              \mathbf{else}:\\
              \;\;\;\;t\_2\\
              
              
              \end{array}
              \end{array}
              
              Derivation
              1. Split input into 2 regimes
              2. if (*.f64 (*.f64 a #s(literal 27 binary64)) b) < -4.99999999999999989e37 or 9.99999999999999967e78 < (*.f64 (*.f64 a #s(literal 27 binary64)) b)

                1. Initial program 91.0%

                  \[\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b \]
                2. Add Preprocessing
                3. Taylor expanded in a around inf

                  \[\leadsto \color{blue}{27 \cdot \left(a \cdot b\right)} \]
                4. Step-by-step derivation
                  1. lower-*.f64N/A

                    \[\leadsto \color{blue}{27 \cdot \left(a \cdot b\right)} \]
                  2. lower-*.f6469.8

                    \[\leadsto 27 \cdot \color{blue}{\left(a \cdot b\right)} \]
                5. Applied rewrites69.8%

                  \[\leadsto \color{blue}{27 \cdot \left(a \cdot b\right)} \]

                if -4.99999999999999989e37 < (*.f64 (*.f64 a #s(literal 27 binary64)) b) < 9.99999999999999967e78

                1. Initial program 95.1%

                  \[\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b \]
                2. Add Preprocessing
                3. Taylor expanded in x around inf

                  \[\leadsto \color{blue}{2 \cdot x} \]
                4. Step-by-step derivation
                  1. lower-*.f6447.9

                    \[\leadsto \color{blue}{2 \cdot x} \]
                5. Applied rewrites47.9%

                  \[\leadsto \color{blue}{2 \cdot x} \]
              3. Recombined 2 regimes into one program.
              4. Final simplification57.5%

                \[\leadsto \begin{array}{l} \mathbf{if}\;b \cdot \left(a \cdot 27\right) \leq -5 \cdot 10^{+37}:\\ \;\;\;\;27 \cdot \left(a \cdot b\right)\\ \mathbf{elif}\;b \cdot \left(a \cdot 27\right) \leq 10^{+79}:\\ \;\;\;\;x \cdot 2\\ \mathbf{else}:\\ \;\;\;\;27 \cdot \left(a \cdot b\right)\\ \end{array} \]
              5. Add Preprocessing

              Alternative 12: 97.5% accurate, 0.9× speedup?

              \[\begin{array}{l} [x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\ \\ \begin{array}{l} \mathbf{if}\;z \leq 6.6 \cdot 10^{+87}:\\ \;\;\;\;\mathsf{fma}\left(y, \left(z \cdot -9\right) \cdot t, \mathsf{fma}\left(a, 27 \cdot b, x \cdot 2\right)\right)\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(y \cdot t, z \cdot -9, x \cdot 2\right)\\ \end{array} \end{array} \]
              NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
              (FPCore (x y z t a b)
               :precision binary64
               (if (<= z 6.6e+87)
                 (fma y (* (* z -9.0) t) (fma a (* 27.0 b) (* x 2.0)))
                 (fma (* y t) (* z -9.0) (* x 2.0))))
              assert(x < y && y < z && z < t && t < a && a < b);
              double code(double x, double y, double z, double t, double a, double b) {
              	double tmp;
              	if (z <= 6.6e+87) {
              		tmp = fma(y, ((z * -9.0) * t), fma(a, (27.0 * b), (x * 2.0)));
              	} else {
              		tmp = fma((y * t), (z * -9.0), (x * 2.0));
              	}
              	return tmp;
              }
              
              x, y, z, t, a, b = sort([x, y, z, t, a, b])
              function code(x, y, z, t, a, b)
              	tmp = 0.0
              	if (z <= 6.6e+87)
              		tmp = fma(y, Float64(Float64(z * -9.0) * t), fma(a, Float64(27.0 * b), Float64(x * 2.0)));
              	else
              		tmp = fma(Float64(y * t), Float64(z * -9.0), Float64(x * 2.0));
              	end
              	return tmp
              end
              
              NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
              code[x_, y_, z_, t_, a_, b_] := If[LessEqual[z, 6.6e+87], N[(y * N[(N[(z * -9.0), $MachinePrecision] * t), $MachinePrecision] + N[(a * N[(27.0 * b), $MachinePrecision] + N[(x * 2.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(y * t), $MachinePrecision] * N[(z * -9.0), $MachinePrecision] + N[(x * 2.0), $MachinePrecision]), $MachinePrecision]]
              
              \begin{array}{l}
              [x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\
              \\
              \begin{array}{l}
              \mathbf{if}\;z \leq 6.6 \cdot 10^{+87}:\\
              \;\;\;\;\mathsf{fma}\left(y, \left(z \cdot -9\right) \cdot t, \mathsf{fma}\left(a, 27 \cdot b, x \cdot 2\right)\right)\\
              
              \mathbf{else}:\\
              \;\;\;\;\mathsf{fma}\left(y \cdot t, z \cdot -9, x \cdot 2\right)\\
              
              
              \end{array}
              \end{array}
              
              Derivation
              1. Split input into 2 regimes
              2. if z < 6.6000000000000003e87

                1. Initial program 96.4%

                  \[\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b \]
                2. Add Preprocessing
                3. Step-by-step derivation
                  1. lift-+.f64N/A

                    \[\leadsto \color{blue}{\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b} \]
                  2. lift--.f64N/A

                    \[\leadsto \color{blue}{\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right)} + \left(a \cdot 27\right) \cdot b \]
                  3. sub-negN/A

                    \[\leadsto \color{blue}{\left(x \cdot 2 + \left(\mathsf{neg}\left(\left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right)\right)\right)} + \left(a \cdot 27\right) \cdot b \]
                  4. +-commutativeN/A

                    \[\leadsto \color{blue}{\left(\left(\mathsf{neg}\left(\left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right)\right) + x \cdot 2\right)} + \left(a \cdot 27\right) \cdot b \]
                  5. associate-+l+N/A

                    \[\leadsto \color{blue}{\left(\mathsf{neg}\left(\left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right)\right) + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right)} \]
                  6. lift-*.f64N/A

                    \[\leadsto \left(\mathsf{neg}\left(\color{blue}{\left(\left(y \cdot 9\right) \cdot z\right) \cdot t}\right)\right) + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
                  7. distribute-lft-neg-inN/A

                    \[\leadsto \color{blue}{\left(\mathsf{neg}\left(\left(y \cdot 9\right) \cdot z\right)\right) \cdot t} + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
                  8. lift-*.f64N/A

                    \[\leadsto \left(\mathsf{neg}\left(\color{blue}{\left(y \cdot 9\right) \cdot z}\right)\right) \cdot t + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
                  9. lift-*.f64N/A

                    \[\leadsto \left(\mathsf{neg}\left(\color{blue}{\left(y \cdot 9\right)} \cdot z\right)\right) \cdot t + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
                  10. associate-*l*N/A

                    \[\leadsto \left(\mathsf{neg}\left(\color{blue}{y \cdot \left(9 \cdot z\right)}\right)\right) \cdot t + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
                  11. distribute-rgt-neg-inN/A

                    \[\leadsto \color{blue}{\left(y \cdot \left(\mathsf{neg}\left(9 \cdot z\right)\right)\right)} \cdot t + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
                  12. associate-*l*N/A

                    \[\leadsto \color{blue}{y \cdot \left(\left(\mathsf{neg}\left(9 \cdot z\right)\right) \cdot t\right)} + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
                  13. +-commutativeN/A

                    \[\leadsto y \cdot \left(\left(\mathsf{neg}\left(9 \cdot z\right)\right) \cdot t\right) + \color{blue}{\left(\left(a \cdot 27\right) \cdot b + x \cdot 2\right)} \]
                  14. lower-fma.f64N/A

                    \[\leadsto \color{blue}{\mathsf{fma}\left(y, \left(\mathsf{neg}\left(9 \cdot z\right)\right) \cdot t, \left(a \cdot 27\right) \cdot b + x \cdot 2\right)} \]
                4. Applied rewrites97.0%

                  \[\leadsto \color{blue}{\mathsf{fma}\left(y, \left(z \cdot -9\right) \cdot t, \mathsf{fma}\left(a, 27 \cdot b, x \cdot 2\right)\right)} \]

                if 6.6000000000000003e87 < z

                1. Initial program 82.1%

                  \[\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b \]
                2. Add Preprocessing
                3. Step-by-step derivation
                  1. lift-+.f64N/A

                    \[\leadsto \color{blue}{\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b} \]
                  2. lift--.f64N/A

                    \[\leadsto \color{blue}{\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right)} + \left(a \cdot 27\right) \cdot b \]
                  3. sub-negN/A

                    \[\leadsto \color{blue}{\left(x \cdot 2 + \left(\mathsf{neg}\left(\left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right)\right)\right)} + \left(a \cdot 27\right) \cdot b \]
                  4. +-commutativeN/A

                    \[\leadsto \color{blue}{\left(\left(\mathsf{neg}\left(\left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right)\right) + x \cdot 2\right)} + \left(a \cdot 27\right) \cdot b \]
                  5. associate-+l+N/A

                    \[\leadsto \color{blue}{\left(\mathsf{neg}\left(\left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right)\right) + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right)} \]
                  6. lift-*.f64N/A

                    \[\leadsto \left(\mathsf{neg}\left(\color{blue}{\left(\left(y \cdot 9\right) \cdot z\right) \cdot t}\right)\right) + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
                  7. *-commutativeN/A

                    \[\leadsto \left(\mathsf{neg}\left(\color{blue}{t \cdot \left(\left(y \cdot 9\right) \cdot z\right)}\right)\right) + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
                  8. lift-*.f64N/A

                    \[\leadsto \left(\mathsf{neg}\left(t \cdot \color{blue}{\left(\left(y \cdot 9\right) \cdot z\right)}\right)\right) + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
                  9. lift-*.f64N/A

                    \[\leadsto \left(\mathsf{neg}\left(t \cdot \left(\color{blue}{\left(y \cdot 9\right)} \cdot z\right)\right)\right) + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
                  10. associate-*l*N/A

                    \[\leadsto \left(\mathsf{neg}\left(t \cdot \color{blue}{\left(y \cdot \left(9 \cdot z\right)\right)}\right)\right) + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
                  11. associate-*r*N/A

                    \[\leadsto \left(\mathsf{neg}\left(\color{blue}{\left(t \cdot y\right) \cdot \left(9 \cdot z\right)}\right)\right) + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
                  12. distribute-rgt-neg-inN/A

                    \[\leadsto \color{blue}{\left(t \cdot y\right) \cdot \left(\mathsf{neg}\left(9 \cdot z\right)\right)} + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
                  13. +-commutativeN/A

                    \[\leadsto \left(t \cdot y\right) \cdot \left(\mathsf{neg}\left(9 \cdot z\right)\right) + \color{blue}{\left(\left(a \cdot 27\right) \cdot b + x \cdot 2\right)} \]
                  14. lower-fma.f64N/A

                    \[\leadsto \color{blue}{\mathsf{fma}\left(t \cdot y, \mathsf{neg}\left(9 \cdot z\right), \left(a \cdot 27\right) \cdot b + x \cdot 2\right)} \]
                  15. *-commutativeN/A

                    \[\leadsto \mathsf{fma}\left(\color{blue}{y \cdot t}, \mathsf{neg}\left(9 \cdot z\right), \left(a \cdot 27\right) \cdot b + x \cdot 2\right) \]
                  16. lower-*.f64N/A

                    \[\leadsto \mathsf{fma}\left(\color{blue}{y \cdot t}, \mathsf{neg}\left(9 \cdot z\right), \left(a \cdot 27\right) \cdot b + x \cdot 2\right) \]
                  17. *-commutativeN/A

                    \[\leadsto \mathsf{fma}\left(y \cdot t, \mathsf{neg}\left(\color{blue}{z \cdot 9}\right), \left(a \cdot 27\right) \cdot b + x \cdot 2\right) \]
                  18. distribute-rgt-neg-inN/A

                    \[\leadsto \mathsf{fma}\left(y \cdot t, \color{blue}{z \cdot \left(\mathsf{neg}\left(9\right)\right)}, \left(a \cdot 27\right) \cdot b + x \cdot 2\right) \]
                  19. lower-*.f64N/A

                    \[\leadsto \mathsf{fma}\left(y \cdot t, \color{blue}{z \cdot \left(\mathsf{neg}\left(9\right)\right)}, \left(a \cdot 27\right) \cdot b + x \cdot 2\right) \]
                  20. metadata-evalN/A

                    \[\leadsto \mathsf{fma}\left(y \cdot t, z \cdot \color{blue}{-9}, \left(a \cdot 27\right) \cdot b + x \cdot 2\right) \]
                4. Applied rewrites98.1%

                  \[\leadsto \color{blue}{\mathsf{fma}\left(y \cdot t, z \cdot -9, \mathsf{fma}\left(a, 27 \cdot b, x \cdot 2\right)\right)} \]
                5. Taylor expanded in a around 0

                  \[\leadsto \mathsf{fma}\left(y \cdot t, z \cdot -9, \color{blue}{2 \cdot x}\right) \]
                6. Step-by-step derivation
                  1. lower-*.f6478.6

                    \[\leadsto \mathsf{fma}\left(y \cdot t, z \cdot -9, \color{blue}{2 \cdot x}\right) \]
                7. Applied rewrites78.6%

                  \[\leadsto \mathsf{fma}\left(y \cdot t, z \cdot -9, \color{blue}{2 \cdot x}\right) \]
              3. Recombined 2 regimes into one program.
              4. Final simplification93.0%

                \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq 6.6 \cdot 10^{+87}:\\ \;\;\;\;\mathsf{fma}\left(y, \left(z \cdot -9\right) \cdot t, \mathsf{fma}\left(a, 27 \cdot b, x \cdot 2\right)\right)\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(y \cdot t, z \cdot -9, x \cdot 2\right)\\ \end{array} \]
              5. Add Preprocessing

              Alternative 13: 97.2% accurate, 0.9× speedup?

              \[\begin{array}{l} [x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\ \\ \begin{array}{l} \mathbf{if}\;z \leq 6.6 \cdot 10^{+87}:\\ \;\;\;\;\mathsf{fma}\left(-9, y \cdot \left(z \cdot t\right), \mathsf{fma}\left(a, 27 \cdot b, x \cdot 2\right)\right)\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(y \cdot t, z \cdot -9, x \cdot 2\right)\\ \end{array} \end{array} \]
              NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
              (FPCore (x y z t a b)
               :precision binary64
               (if (<= z 6.6e+87)
                 (fma -9.0 (* y (* z t)) (fma a (* 27.0 b) (* x 2.0)))
                 (fma (* y t) (* z -9.0) (* x 2.0))))
              assert(x < y && y < z && z < t && t < a && a < b);
              double code(double x, double y, double z, double t, double a, double b) {
              	double tmp;
              	if (z <= 6.6e+87) {
              		tmp = fma(-9.0, (y * (z * t)), fma(a, (27.0 * b), (x * 2.0)));
              	} else {
              		tmp = fma((y * t), (z * -9.0), (x * 2.0));
              	}
              	return tmp;
              }
              
              x, y, z, t, a, b = sort([x, y, z, t, a, b])
              function code(x, y, z, t, a, b)
              	tmp = 0.0
              	if (z <= 6.6e+87)
              		tmp = fma(-9.0, Float64(y * Float64(z * t)), fma(a, Float64(27.0 * b), Float64(x * 2.0)));
              	else
              		tmp = fma(Float64(y * t), Float64(z * -9.0), Float64(x * 2.0));
              	end
              	return tmp
              end
              
              NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
              code[x_, y_, z_, t_, a_, b_] := If[LessEqual[z, 6.6e+87], N[(-9.0 * N[(y * N[(z * t), $MachinePrecision]), $MachinePrecision] + N[(a * N[(27.0 * b), $MachinePrecision] + N[(x * 2.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(y * t), $MachinePrecision] * N[(z * -9.0), $MachinePrecision] + N[(x * 2.0), $MachinePrecision]), $MachinePrecision]]
              
              \begin{array}{l}
              [x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\
              \\
              \begin{array}{l}
              \mathbf{if}\;z \leq 6.6 \cdot 10^{+87}:\\
              \;\;\;\;\mathsf{fma}\left(-9, y \cdot \left(z \cdot t\right), \mathsf{fma}\left(a, 27 \cdot b, x \cdot 2\right)\right)\\
              
              \mathbf{else}:\\
              \;\;\;\;\mathsf{fma}\left(y \cdot t, z \cdot -9, x \cdot 2\right)\\
              
              
              \end{array}
              \end{array}
              
              Derivation
              1. Split input into 2 regimes
              2. if z < 6.6000000000000003e87

                1. Initial program 96.4%

                  \[\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b \]
                2. Add Preprocessing
                3. Step-by-step derivation
                  1. lift-+.f64N/A

                    \[\leadsto \color{blue}{\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b} \]
                  2. lift--.f64N/A

                    \[\leadsto \color{blue}{\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right)} + \left(a \cdot 27\right) \cdot b \]
                  3. sub-negN/A

                    \[\leadsto \color{blue}{\left(x \cdot 2 + \left(\mathsf{neg}\left(\left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right)\right)\right)} + \left(a \cdot 27\right) \cdot b \]
                  4. +-commutativeN/A

                    \[\leadsto \color{blue}{\left(\left(\mathsf{neg}\left(\left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right)\right) + x \cdot 2\right)} + \left(a \cdot 27\right) \cdot b \]
                  5. associate-+l+N/A

                    \[\leadsto \color{blue}{\left(\mathsf{neg}\left(\left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right)\right) + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right)} \]
                  6. lift-*.f64N/A

                    \[\leadsto \left(\mathsf{neg}\left(\color{blue}{\left(\left(y \cdot 9\right) \cdot z\right) \cdot t}\right)\right) + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
                  7. lift-*.f64N/A

                    \[\leadsto \left(\mathsf{neg}\left(\color{blue}{\left(\left(y \cdot 9\right) \cdot z\right)} \cdot t\right)\right) + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
                  8. associate-*l*N/A

                    \[\leadsto \left(\mathsf{neg}\left(\color{blue}{\left(y \cdot 9\right) \cdot \left(z \cdot t\right)}\right)\right) + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
                  9. lift-*.f64N/A

                    \[\leadsto \left(\mathsf{neg}\left(\color{blue}{\left(y \cdot 9\right)} \cdot \left(z \cdot t\right)\right)\right) + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
                  10. *-commutativeN/A

                    \[\leadsto \left(\mathsf{neg}\left(\color{blue}{\left(9 \cdot y\right)} \cdot \left(z \cdot t\right)\right)\right) + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
                  11. associate-*l*N/A

                    \[\leadsto \left(\mathsf{neg}\left(\color{blue}{9 \cdot \left(y \cdot \left(z \cdot t\right)\right)}\right)\right) + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
                  12. distribute-lft-neg-inN/A

                    \[\leadsto \color{blue}{\left(\mathsf{neg}\left(9\right)\right) \cdot \left(y \cdot \left(z \cdot t\right)\right)} + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
                  13. +-commutativeN/A

                    \[\leadsto \left(\mathsf{neg}\left(9\right)\right) \cdot \left(y \cdot \left(z \cdot t\right)\right) + \color{blue}{\left(\left(a \cdot 27\right) \cdot b + x \cdot 2\right)} \]
                  14. lower-fma.f64N/A

                    \[\leadsto \color{blue}{\mathsf{fma}\left(\mathsf{neg}\left(9\right), y \cdot \left(z \cdot t\right), \left(a \cdot 27\right) \cdot b + x \cdot 2\right)} \]
                  15. metadata-evalN/A

                    \[\leadsto \mathsf{fma}\left(\color{blue}{-9}, y \cdot \left(z \cdot t\right), \left(a \cdot 27\right) \cdot b + x \cdot 2\right) \]
                  16. lower-*.f64N/A

                    \[\leadsto \mathsf{fma}\left(-9, \color{blue}{y \cdot \left(z \cdot t\right)}, \left(a \cdot 27\right) \cdot b + x \cdot 2\right) \]
                  17. lower-*.f64N/A

                    \[\leadsto \mathsf{fma}\left(-9, y \cdot \color{blue}{\left(z \cdot t\right)}, \left(a \cdot 27\right) \cdot b + x \cdot 2\right) \]
                  18. lift-*.f64N/A

                    \[\leadsto \mathsf{fma}\left(-9, y \cdot \left(z \cdot t\right), \color{blue}{\left(a \cdot 27\right) \cdot b} + x \cdot 2\right) \]
                  19. lift-*.f64N/A

                    \[\leadsto \mathsf{fma}\left(-9, y \cdot \left(z \cdot t\right), \color{blue}{\left(a \cdot 27\right)} \cdot b + x \cdot 2\right) \]
                  20. associate-*l*N/A

                    \[\leadsto \mathsf{fma}\left(-9, y \cdot \left(z \cdot t\right), \color{blue}{a \cdot \left(27 \cdot b\right)} + x \cdot 2\right) \]
                4. Applied rewrites96.5%

                  \[\leadsto \color{blue}{\mathsf{fma}\left(-9, y \cdot \left(z \cdot t\right), \mathsf{fma}\left(a, 27 \cdot b, x \cdot 2\right)\right)} \]

                if 6.6000000000000003e87 < z

                1. Initial program 82.1%

                  \[\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b \]
                2. Add Preprocessing
                3. Step-by-step derivation
                  1. lift-+.f64N/A

                    \[\leadsto \color{blue}{\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b} \]
                  2. lift--.f64N/A

                    \[\leadsto \color{blue}{\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right)} + \left(a \cdot 27\right) \cdot b \]
                  3. sub-negN/A

                    \[\leadsto \color{blue}{\left(x \cdot 2 + \left(\mathsf{neg}\left(\left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right)\right)\right)} + \left(a \cdot 27\right) \cdot b \]
                  4. +-commutativeN/A

                    \[\leadsto \color{blue}{\left(\left(\mathsf{neg}\left(\left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right)\right) + x \cdot 2\right)} + \left(a \cdot 27\right) \cdot b \]
                  5. associate-+l+N/A

                    \[\leadsto \color{blue}{\left(\mathsf{neg}\left(\left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right)\right) + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right)} \]
                  6. lift-*.f64N/A

                    \[\leadsto \left(\mathsf{neg}\left(\color{blue}{\left(\left(y \cdot 9\right) \cdot z\right) \cdot t}\right)\right) + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
                  7. *-commutativeN/A

                    \[\leadsto \left(\mathsf{neg}\left(\color{blue}{t \cdot \left(\left(y \cdot 9\right) \cdot z\right)}\right)\right) + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
                  8. lift-*.f64N/A

                    \[\leadsto \left(\mathsf{neg}\left(t \cdot \color{blue}{\left(\left(y \cdot 9\right) \cdot z\right)}\right)\right) + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
                  9. lift-*.f64N/A

                    \[\leadsto \left(\mathsf{neg}\left(t \cdot \left(\color{blue}{\left(y \cdot 9\right)} \cdot z\right)\right)\right) + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
                  10. associate-*l*N/A

                    \[\leadsto \left(\mathsf{neg}\left(t \cdot \color{blue}{\left(y \cdot \left(9 \cdot z\right)\right)}\right)\right) + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
                  11. associate-*r*N/A

                    \[\leadsto \left(\mathsf{neg}\left(\color{blue}{\left(t \cdot y\right) \cdot \left(9 \cdot z\right)}\right)\right) + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
                  12. distribute-rgt-neg-inN/A

                    \[\leadsto \color{blue}{\left(t \cdot y\right) \cdot \left(\mathsf{neg}\left(9 \cdot z\right)\right)} + \left(x \cdot 2 + \left(a \cdot 27\right) \cdot b\right) \]
                  13. +-commutativeN/A

                    \[\leadsto \left(t \cdot y\right) \cdot \left(\mathsf{neg}\left(9 \cdot z\right)\right) + \color{blue}{\left(\left(a \cdot 27\right) \cdot b + x \cdot 2\right)} \]
                  14. lower-fma.f64N/A

                    \[\leadsto \color{blue}{\mathsf{fma}\left(t \cdot y, \mathsf{neg}\left(9 \cdot z\right), \left(a \cdot 27\right) \cdot b + x \cdot 2\right)} \]
                  15. *-commutativeN/A

                    \[\leadsto \mathsf{fma}\left(\color{blue}{y \cdot t}, \mathsf{neg}\left(9 \cdot z\right), \left(a \cdot 27\right) \cdot b + x \cdot 2\right) \]
                  16. lower-*.f64N/A

                    \[\leadsto \mathsf{fma}\left(\color{blue}{y \cdot t}, \mathsf{neg}\left(9 \cdot z\right), \left(a \cdot 27\right) \cdot b + x \cdot 2\right) \]
                  17. *-commutativeN/A

                    \[\leadsto \mathsf{fma}\left(y \cdot t, \mathsf{neg}\left(\color{blue}{z \cdot 9}\right), \left(a \cdot 27\right) \cdot b + x \cdot 2\right) \]
                  18. distribute-rgt-neg-inN/A

                    \[\leadsto \mathsf{fma}\left(y \cdot t, \color{blue}{z \cdot \left(\mathsf{neg}\left(9\right)\right)}, \left(a \cdot 27\right) \cdot b + x \cdot 2\right) \]
                  19. lower-*.f64N/A

                    \[\leadsto \mathsf{fma}\left(y \cdot t, \color{blue}{z \cdot \left(\mathsf{neg}\left(9\right)\right)}, \left(a \cdot 27\right) \cdot b + x \cdot 2\right) \]
                  20. metadata-evalN/A

                    \[\leadsto \mathsf{fma}\left(y \cdot t, z \cdot \color{blue}{-9}, \left(a \cdot 27\right) \cdot b + x \cdot 2\right) \]
                4. Applied rewrites98.1%

                  \[\leadsto \color{blue}{\mathsf{fma}\left(y \cdot t, z \cdot -9, \mathsf{fma}\left(a, 27 \cdot b, x \cdot 2\right)\right)} \]
                5. Taylor expanded in a around 0

                  \[\leadsto \mathsf{fma}\left(y \cdot t, z \cdot -9, \color{blue}{2 \cdot x}\right) \]
                6. Step-by-step derivation
                  1. lower-*.f6478.6

                    \[\leadsto \mathsf{fma}\left(y \cdot t, z \cdot -9, \color{blue}{2 \cdot x}\right) \]
                7. Applied rewrites78.6%

                  \[\leadsto \mathsf{fma}\left(y \cdot t, z \cdot -9, \color{blue}{2 \cdot x}\right) \]
              3. Recombined 2 regimes into one program.
              4. Final simplification92.6%

                \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq 6.6 \cdot 10^{+87}:\\ \;\;\;\;\mathsf{fma}\left(-9, y \cdot \left(z \cdot t\right), \mathsf{fma}\left(a, 27 \cdot b, x \cdot 2\right)\right)\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(y \cdot t, z \cdot -9, x \cdot 2\right)\\ \end{array} \]
              5. Add Preprocessing

              Alternative 14: 31.0% accurate, 6.2× speedup?

              \[\begin{array}{l} [x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\ \\ x \cdot 2 \end{array} \]
              NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
              (FPCore (x y z t a b) :precision binary64 (* x 2.0))
              assert(x < y && y < z && z < t && t < a && a < b);
              double code(double x, double y, double z, double t, double a, double b) {
              	return x * 2.0;
              }
              
              NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
              real(8) function code(x, y, z, t, a, b)
                  real(8), intent (in) :: x
                  real(8), intent (in) :: y
                  real(8), intent (in) :: z
                  real(8), intent (in) :: t
                  real(8), intent (in) :: a
                  real(8), intent (in) :: b
                  code = x * 2.0d0
              end function
              
              assert x < y && y < z && z < t && t < a && a < b;
              public static double code(double x, double y, double z, double t, double a, double b) {
              	return x * 2.0;
              }
              
              [x, y, z, t, a, b] = sort([x, y, z, t, a, b])
              def code(x, y, z, t, a, b):
              	return x * 2.0
              
              x, y, z, t, a, b = sort([x, y, z, t, a, b])
              function code(x, y, z, t, a, b)
              	return Float64(x * 2.0)
              end
              
              x, y, z, t, a, b = num2cell(sort([x, y, z, t, a, b])){:}
              function tmp = code(x, y, z, t, a, b)
              	tmp = x * 2.0;
              end
              
              NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
              code[x_, y_, z_, t_, a_, b_] := N[(x * 2.0), $MachinePrecision]
              
              \begin{array}{l}
              [x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\
              \\
              x \cdot 2
              \end{array}
              
              Derivation
              1. Initial program 93.3%

                \[\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + \left(a \cdot 27\right) \cdot b \]
              2. Add Preprocessing
              3. Taylor expanded in x around inf

                \[\leadsto \color{blue}{2 \cdot x} \]
              4. Step-by-step derivation
                1. lower-*.f6432.5

                  \[\leadsto \color{blue}{2 \cdot x} \]
              5. Applied rewrites32.5%

                \[\leadsto \color{blue}{2 \cdot x} \]
              6. Final simplification32.5%

                \[\leadsto x \cdot 2 \]
              7. Add Preprocessing

              Developer Target 1: 95.2% accurate, 0.9× speedup?

              \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y < 7.590524218811189 \cdot 10^{-161}:\\ \;\;\;\;\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + a \cdot \left(27 \cdot b\right)\\ \mathbf{else}:\\ \;\;\;\;\left(x \cdot 2 - 9 \cdot \left(y \cdot \left(t \cdot z\right)\right)\right) + \left(a \cdot 27\right) \cdot b\\ \end{array} \end{array} \]
              (FPCore (x y z t a b)
               :precision binary64
               (if (< y 7.590524218811189e-161)
                 (+ (- (* x 2.0) (* (* (* y 9.0) z) t)) (* a (* 27.0 b)))
                 (+ (- (* x 2.0) (* 9.0 (* y (* t z)))) (* (* a 27.0) b))))
              double code(double x, double y, double z, double t, double a, double b) {
              	double tmp;
              	if (y < 7.590524218811189e-161) {
              		tmp = ((x * 2.0) - (((y * 9.0) * z) * t)) + (a * (27.0 * b));
              	} else {
              		tmp = ((x * 2.0) - (9.0 * (y * (t * z)))) + ((a * 27.0) * b);
              	}
              	return tmp;
              }
              
              real(8) function code(x, y, z, t, a, b)
                  real(8), intent (in) :: x
                  real(8), intent (in) :: y
                  real(8), intent (in) :: z
                  real(8), intent (in) :: t
                  real(8), intent (in) :: a
                  real(8), intent (in) :: b
                  real(8) :: tmp
                  if (y < 7.590524218811189d-161) then
                      tmp = ((x * 2.0d0) - (((y * 9.0d0) * z) * t)) + (a * (27.0d0 * b))
                  else
                      tmp = ((x * 2.0d0) - (9.0d0 * (y * (t * z)))) + ((a * 27.0d0) * b)
                  end if
                  code = tmp
              end function
              
              public static double code(double x, double y, double z, double t, double a, double b) {
              	double tmp;
              	if (y < 7.590524218811189e-161) {
              		tmp = ((x * 2.0) - (((y * 9.0) * z) * t)) + (a * (27.0 * b));
              	} else {
              		tmp = ((x * 2.0) - (9.0 * (y * (t * z)))) + ((a * 27.0) * b);
              	}
              	return tmp;
              }
              
              def code(x, y, z, t, a, b):
              	tmp = 0
              	if y < 7.590524218811189e-161:
              		tmp = ((x * 2.0) - (((y * 9.0) * z) * t)) + (a * (27.0 * b))
              	else:
              		tmp = ((x * 2.0) - (9.0 * (y * (t * z)))) + ((a * 27.0) * b)
              	return tmp
              
              function code(x, y, z, t, a, b)
              	tmp = 0.0
              	if (y < 7.590524218811189e-161)
              		tmp = Float64(Float64(Float64(x * 2.0) - Float64(Float64(Float64(y * 9.0) * z) * t)) + Float64(a * Float64(27.0 * b)));
              	else
              		tmp = Float64(Float64(Float64(x * 2.0) - Float64(9.0 * Float64(y * Float64(t * z)))) + Float64(Float64(a * 27.0) * b));
              	end
              	return tmp
              end
              
              function tmp_2 = code(x, y, z, t, a, b)
              	tmp = 0.0;
              	if (y < 7.590524218811189e-161)
              		tmp = ((x * 2.0) - (((y * 9.0) * z) * t)) + (a * (27.0 * b));
              	else
              		tmp = ((x * 2.0) - (9.0 * (y * (t * z)))) + ((a * 27.0) * b);
              	end
              	tmp_2 = tmp;
              end
              
              code[x_, y_, z_, t_, a_, b_] := If[Less[y, 7.590524218811189e-161], N[(N[(N[(x * 2.0), $MachinePrecision] - N[(N[(N[(y * 9.0), $MachinePrecision] * z), $MachinePrecision] * t), $MachinePrecision]), $MachinePrecision] + N[(a * N[(27.0 * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(N[(x * 2.0), $MachinePrecision] - N[(9.0 * N[(y * N[(t * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(N[(a * 27.0), $MachinePrecision] * b), $MachinePrecision]), $MachinePrecision]]
              
              \begin{array}{l}
              
              \\
              \begin{array}{l}
              \mathbf{if}\;y < 7.590524218811189 \cdot 10^{-161}:\\
              \;\;\;\;\left(x \cdot 2 - \left(\left(y \cdot 9\right) \cdot z\right) \cdot t\right) + a \cdot \left(27 \cdot b\right)\\
              
              \mathbf{else}:\\
              \;\;\;\;\left(x \cdot 2 - 9 \cdot \left(y \cdot \left(t \cdot z\right)\right)\right) + \left(a \cdot 27\right) \cdot b\\
              
              
              \end{array}
              \end{array}
              

              Reproduce

              ?
              herbie shell --seed 2024232 
              (FPCore (x y z t a b)
                :name "Diagrams.Solve.Polynomial:cubForm  from diagrams-solve-0.1, A"
                :precision binary64
              
                :alt
                (! :herbie-platform default (if (< y 7590524218811189/100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) (+ (- (* x 2) (* (* (* y 9) z) t)) (* a (* 27 b))) (+ (- (* x 2) (* 9 (* y (* t z)))) (* (* a 27) b))))
              
                (+ (- (* x 2.0) (* (* (* y 9.0) z) t)) (* (* a 27.0) b)))