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

Percentage Accurate: 91.6% → 96.7%
Time: 10.6s
Alternatives: 14
Speedup: 0.6×

Specification

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

\\
\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2}
\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: 91.6% accurate, 1.0× speedup?

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

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

Alternative 1: 96.7% accurate, 0.1× speedup?

\[\begin{array}{l} [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\\\ [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\ \\ \begin{array}{l} t_1 := x \cdot y - \left(z \cdot 9\right) \cdot t\\ \mathbf{if}\;t_1 \leq -5 \cdot 10^{+233}:\\ \;\;\;\;\mathsf{fma}\left(-4.5, z \cdot \frac{t}{a}, 0.5 \cdot \left(x \cdot \frac{y}{a}\right)\right)\\ \mathbf{elif}\;t_1 \leq 2 \cdot 10^{+273}:\\ \;\;\;\;\frac{t_1}{a \cdot 2}\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(-4.5, t \cdot \frac{z}{a}, \frac{x}{a} \cdot \left(y \cdot 0.5\right)\right)\\ \end{array} \end{array} \]
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
(FPCore (x y z t a)
 :precision binary64
 (let* ((t_1 (- (* x y) (* (* z 9.0) t))))
   (if (<= t_1 -5e+233)
     (fma -4.5 (* z (/ t a)) (* 0.5 (* x (/ y a))))
     (if (<= t_1 2e+273)
       (/ t_1 (* a 2.0))
       (fma -4.5 (* t (/ z a)) (* (/ x a) (* y 0.5)))))))
assert(x < y && y < z && z < t && t < a);
assert(x < y && y < z && z < t && t < a);
double code(double x, double y, double z, double t, double a) {
	double t_1 = (x * y) - ((z * 9.0) * t);
	double tmp;
	if (t_1 <= -5e+233) {
		tmp = fma(-4.5, (z * (t / a)), (0.5 * (x * (y / a))));
	} else if (t_1 <= 2e+273) {
		tmp = t_1 / (a * 2.0);
	} else {
		tmp = fma(-4.5, (t * (z / a)), ((x / a) * (y * 0.5)));
	}
	return tmp;
}
x, y, z, t, a = sort([x, y, z, t, a])
x, y, z, t, a = sort([x, y, z, t, a])
function code(x, y, z, t, a)
	t_1 = Float64(Float64(x * y) - Float64(Float64(z * 9.0) * t))
	tmp = 0.0
	if (t_1 <= -5e+233)
		tmp = fma(-4.5, Float64(z * Float64(t / a)), Float64(0.5 * Float64(x * Float64(y / a))));
	elseif (t_1 <= 2e+273)
		tmp = Float64(t_1 / Float64(a * 2.0));
	else
		tmp = fma(-4.5, Float64(t * Float64(z / a)), Float64(Float64(x / a) * Float64(y * 0.5)));
	end
	return tmp
end
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(N[(x * y), $MachinePrecision] - N[(N[(z * 9.0), $MachinePrecision] * t), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$1, -5e+233], N[(-4.5 * N[(z * N[(t / a), $MachinePrecision]), $MachinePrecision] + N[(0.5 * N[(x * N[(y / a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[t$95$1, 2e+273], N[(t$95$1 / N[(a * 2.0), $MachinePrecision]), $MachinePrecision], N[(-4.5 * N[(t * N[(z / a), $MachinePrecision]), $MachinePrecision] + N[(N[(x / a), $MachinePrecision] * N[(y * 0.5), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}
[x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\\\
[x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\
\\
\begin{array}{l}
t_1 := x \cdot y - \left(z \cdot 9\right) \cdot t\\
\mathbf{if}\;t_1 \leq -5 \cdot 10^{+233}:\\
\;\;\;\;\mathsf{fma}\left(-4.5, z \cdot \frac{t}{a}, 0.5 \cdot \left(x \cdot \frac{y}{a}\right)\right)\\

\mathbf{elif}\;t_1 \leq 2 \cdot 10^{+273}:\\
\;\;\;\;\frac{t_1}{a \cdot 2}\\

\mathbf{else}:\\
\;\;\;\;\mathsf{fma}\left(-4.5, t \cdot \frac{z}{a}, \frac{x}{a} \cdot \left(y \cdot 0.5\right)\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if (-.f64 (*.f64 x y) (*.f64 (*.f64 z 9) t)) < -5.00000000000000009e233

    1. Initial program 73.3%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. associate-*l*71.3%

        \[\leadsto \frac{x \cdot y - \color{blue}{z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
    3. Simplified71.3%

      \[\leadsto \color{blue}{\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around 0 73.3%

      \[\leadsto \color{blue}{-4.5 \cdot \frac{t \cdot z}{a} + 0.5 \cdot \frac{x \cdot y}{a}} \]
    6. Step-by-step derivation
      1. fma-def73.3%

        \[\leadsto \color{blue}{\mathsf{fma}\left(-4.5, \frac{t \cdot z}{a}, 0.5 \cdot \frac{x \cdot y}{a}\right)} \]
      2. associate-/l*85.5%

        \[\leadsto \mathsf{fma}\left(-4.5, \color{blue}{\frac{t}{\frac{a}{z}}}, 0.5 \cdot \frac{x \cdot y}{a}\right) \]
      3. associate-/r/83.3%

        \[\leadsto \mathsf{fma}\left(-4.5, \color{blue}{\frac{t}{a} \cdot z}, 0.5 \cdot \frac{x \cdot y}{a}\right) \]
      4. associate-*r/95.4%

        \[\leadsto \mathsf{fma}\left(-4.5, \frac{t}{a} \cdot z, 0.5 \cdot \color{blue}{\left(x \cdot \frac{y}{a}\right)}\right) \]
    7. Simplified95.4%

      \[\leadsto \color{blue}{\mathsf{fma}\left(-4.5, \frac{t}{a} \cdot z, 0.5 \cdot \left(x \cdot \frac{y}{a}\right)\right)} \]

    if -5.00000000000000009e233 < (-.f64 (*.f64 x y) (*.f64 (*.f64 z 9) t)) < 1.99999999999999989e273

    1. Initial program 98.7%

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

    if 1.99999999999999989e273 < (-.f64 (*.f64 x y) (*.f64 (*.f64 z 9) t))

    1. Initial program 59.4%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. associate-*l*59.4%

        \[\leadsto \frac{x \cdot y - \color{blue}{z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
    3. Simplified59.4%

      \[\leadsto \color{blue}{\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}} \]
    4. Add Preprocessing
    5. Taylor expanded in a around 0 59.4%

      \[\leadsto \color{blue}{0.5 \cdot \frac{x \cdot y - 9 \cdot \left(t \cdot z\right)}{a}} \]
    6. Step-by-step derivation
      1. associate-*r/59.4%

        \[\leadsto \color{blue}{\frac{0.5 \cdot \left(x \cdot y - 9 \cdot \left(t \cdot z\right)\right)}{a}} \]
      2. cancel-sign-sub-inv59.4%

        \[\leadsto \frac{0.5 \cdot \color{blue}{\left(x \cdot y + \left(-9\right) \cdot \left(t \cdot z\right)\right)}}{a} \]
      3. metadata-eval59.4%

        \[\leadsto \frac{0.5 \cdot \left(x \cdot y + \color{blue}{-9} \cdot \left(t \cdot z\right)\right)}{a} \]
      4. +-commutative59.4%

        \[\leadsto \frac{0.5 \cdot \color{blue}{\left(-9 \cdot \left(t \cdot z\right) + x \cdot y\right)}}{a} \]
      5. associate-/l*59.4%

        \[\leadsto \color{blue}{\frac{0.5}{\frac{a}{-9 \cdot \left(t \cdot z\right) + x \cdot y}}} \]
      6. +-commutative59.4%

        \[\leadsto \frac{0.5}{\frac{a}{\color{blue}{x \cdot y + -9 \cdot \left(t \cdot z\right)}}} \]
      7. metadata-eval59.4%

        \[\leadsto \frac{0.5}{\frac{a}{x \cdot y + \color{blue}{\left(-9\right)} \cdot \left(t \cdot z\right)}} \]
      8. cancel-sign-sub-inv59.4%

        \[\leadsto \frac{0.5}{\frac{a}{\color{blue}{x \cdot y - 9 \cdot \left(t \cdot z\right)}}} \]
      9. fma-neg67.3%

        \[\leadsto \frac{0.5}{\frac{a}{\color{blue}{\mathsf{fma}\left(x, y, -9 \cdot \left(t \cdot z\right)\right)}}} \]
      10. *-commutative67.3%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, -9 \cdot \color{blue}{\left(z \cdot t\right)}\right)}} \]
      11. distribute-lft-neg-in67.3%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{\left(-9\right) \cdot \left(z \cdot t\right)}\right)}} \]
      12. metadata-eval67.3%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{-9} \cdot \left(z \cdot t\right)\right)}} \]
      13. *-commutative67.3%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{\left(z \cdot t\right) \cdot -9}\right)}} \]
      14. associate-*l*67.3%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{z \cdot \left(t \cdot -9\right)}\right)}} \]
    7. Simplified67.3%

      \[\leadsto \color{blue}{\frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, z \cdot \left(t \cdot -9\right)\right)}}} \]
    8. Taylor expanded in x around 0 59.4%

      \[\leadsto \color{blue}{-4.5 \cdot \frac{t \cdot z}{a} + 0.5 \cdot \frac{x \cdot y}{a}} \]
    9. Step-by-step derivation
      1. fma-def59.4%

        \[\leadsto \color{blue}{\mathsf{fma}\left(-4.5, \frac{t \cdot z}{a}, 0.5 \cdot \frac{x \cdot y}{a}\right)} \]
      2. associate-*r/71.8%

        \[\leadsto \mathsf{fma}\left(-4.5, \color{blue}{t \cdot \frac{z}{a}}, 0.5 \cdot \frac{x \cdot y}{a}\right) \]
      3. associate-*l/86.8%

        \[\leadsto \mathsf{fma}\left(-4.5, t \cdot \frac{z}{a}, 0.5 \cdot \color{blue}{\left(\frac{x}{a} \cdot y\right)}\right) \]
      4. *-commutative86.8%

        \[\leadsto \mathsf{fma}\left(-4.5, t \cdot \frac{z}{a}, 0.5 \cdot \color{blue}{\left(y \cdot \frac{x}{a}\right)}\right) \]
      5. *-commutative86.8%

        \[\leadsto \mathsf{fma}\left(-4.5, t \cdot \frac{z}{a}, \color{blue}{\left(y \cdot \frac{x}{a}\right) \cdot 0.5}\right) \]
      6. *-commutative86.8%

        \[\leadsto \mathsf{fma}\left(-4.5, t \cdot \frac{z}{a}, \color{blue}{\left(\frac{x}{a} \cdot y\right)} \cdot 0.5\right) \]
      7. associate-*r*86.8%

        \[\leadsto \mathsf{fma}\left(-4.5, t \cdot \frac{z}{a}, \color{blue}{\frac{x}{a} \cdot \left(y \cdot 0.5\right)}\right) \]
    10. Simplified86.8%

      \[\leadsto \color{blue}{\mathsf{fma}\left(-4.5, t \cdot \frac{z}{a}, \frac{x}{a} \cdot \left(y \cdot 0.5\right)\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification96.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \cdot y - \left(z \cdot 9\right) \cdot t \leq -5 \cdot 10^{+233}:\\ \;\;\;\;\mathsf{fma}\left(-4.5, z \cdot \frac{t}{a}, 0.5 \cdot \left(x \cdot \frac{y}{a}\right)\right)\\ \mathbf{elif}\;x \cdot y - \left(z \cdot 9\right) \cdot t \leq 2 \cdot 10^{+273}:\\ \;\;\;\;\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2}\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(-4.5, t \cdot \frac{z}{a}, \frac{x}{a} \cdot \left(y \cdot 0.5\right)\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 2: 92.7% accurate, 0.1× speedup?

\[\begin{array}{l} [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\\\ [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\ \\ \begin{array}{l} \mathbf{if}\;a \cdot 2 \leq 5 \cdot 10^{-115}:\\ \;\;\;\;\frac{\mathsf{fma}\left(x, y, z \cdot \left(t \cdot -9\right)\right)}{a \cdot 2}\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(-4.5, t \cdot \frac{z}{a}, \frac{x}{a} \cdot \left(y \cdot 0.5\right)\right)\\ \end{array} \end{array} \]
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
(FPCore (x y z t a)
 :precision binary64
 (if (<= (* a 2.0) 5e-115)
   (/ (fma x y (* z (* t -9.0))) (* a 2.0))
   (fma -4.5 (* t (/ z a)) (* (/ x a) (* y 0.5)))))
assert(x < y && y < z && z < t && t < a);
assert(x < y && y < z && z < t && t < a);
double code(double x, double y, double z, double t, double a) {
	double tmp;
	if ((a * 2.0) <= 5e-115) {
		tmp = fma(x, y, (z * (t * -9.0))) / (a * 2.0);
	} else {
		tmp = fma(-4.5, (t * (z / a)), ((x / a) * (y * 0.5)));
	}
	return tmp;
}
x, y, z, t, a = sort([x, y, z, t, a])
x, y, z, t, a = sort([x, y, z, t, a])
function code(x, y, z, t, a)
	tmp = 0.0
	if (Float64(a * 2.0) <= 5e-115)
		tmp = Float64(fma(x, y, Float64(z * Float64(t * -9.0))) / Float64(a * 2.0));
	else
		tmp = fma(-4.5, Float64(t * Float64(z / a)), Float64(Float64(x / a) * Float64(y * 0.5)));
	end
	return tmp
end
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_, a_] := If[LessEqual[N[(a * 2.0), $MachinePrecision], 5e-115], N[(N[(x * y + N[(z * N[(t * -9.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(a * 2.0), $MachinePrecision]), $MachinePrecision], N[(-4.5 * N[(t * N[(z / a), $MachinePrecision]), $MachinePrecision] + N[(N[(x / a), $MachinePrecision] * N[(y * 0.5), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
[x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\\\
[x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\
\\
\begin{array}{l}
\mathbf{if}\;a \cdot 2 \leq 5 \cdot 10^{-115}:\\
\;\;\;\;\frac{\mathsf{fma}\left(x, y, z \cdot \left(t \cdot -9\right)\right)}{a \cdot 2}\\

\mathbf{else}:\\
\;\;\;\;\mathsf{fma}\left(-4.5, t \cdot \frac{z}{a}, \frac{x}{a} \cdot \left(y \cdot 0.5\right)\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (*.f64 a 2) < 5.0000000000000003e-115

    1. Initial program 90.6%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. *-commutative90.6%

        \[\leadsto \frac{\color{blue}{y \cdot x} - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
      2. *-commutative90.6%

        \[\leadsto \frac{\color{blue}{x \cdot y} - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
      3. cancel-sign-sub-inv90.6%

        \[\leadsto \frac{\color{blue}{x \cdot y + \left(-z \cdot 9\right) \cdot t}}{a \cdot 2} \]
      4. fma-def91.8%

        \[\leadsto \frac{\color{blue}{\mathsf{fma}\left(x, y, \left(-z \cdot 9\right) \cdot t\right)}}{a \cdot 2} \]
      5. distribute-rgt-neg-in91.8%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \color{blue}{\left(z \cdot \left(-9\right)\right)} \cdot t\right)}{a \cdot 2} \]
      6. associate-*r*91.2%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \color{blue}{z \cdot \left(\left(-9\right) \cdot t\right)}\right)}{a \cdot 2} \]
      7. distribute-lft-neg-in91.2%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, z \cdot \color{blue}{\left(-9 \cdot t\right)}\right)}{a \cdot 2} \]
      8. *-commutative91.2%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, z \cdot \left(-\color{blue}{t \cdot 9}\right)\right)}{a \cdot 2} \]
      9. distribute-rgt-neg-in91.2%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, z \cdot \color{blue}{\left(t \cdot \left(-9\right)\right)}\right)}{a \cdot 2} \]
      10. metadata-eval91.2%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, z \cdot \left(t \cdot \color{blue}{-9}\right)\right)}{a \cdot 2} \]
    3. Simplified91.2%

      \[\leadsto \color{blue}{\frac{\mathsf{fma}\left(x, y, z \cdot \left(t \cdot -9\right)\right)}{a \cdot 2}} \]
    4. Add Preprocessing

    if 5.0000000000000003e-115 < (*.f64 a 2)

    1. Initial program 84.2%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. associate-*l*84.2%

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

      \[\leadsto \color{blue}{\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}} \]
    4. Add Preprocessing
    5. Taylor expanded in a around 0 84.2%

      \[\leadsto \color{blue}{0.5 \cdot \frac{x \cdot y - 9 \cdot \left(t \cdot z\right)}{a}} \]
    6. Step-by-step derivation
      1. associate-*r/84.2%

        \[\leadsto \color{blue}{\frac{0.5 \cdot \left(x \cdot y - 9 \cdot \left(t \cdot z\right)\right)}{a}} \]
      2. cancel-sign-sub-inv84.2%

        \[\leadsto \frac{0.5 \cdot \color{blue}{\left(x \cdot y + \left(-9\right) \cdot \left(t \cdot z\right)\right)}}{a} \]
      3. metadata-eval84.2%

        \[\leadsto \frac{0.5 \cdot \left(x \cdot y + \color{blue}{-9} \cdot \left(t \cdot z\right)\right)}{a} \]
      4. +-commutative84.2%

        \[\leadsto \frac{0.5 \cdot \color{blue}{\left(-9 \cdot \left(t \cdot z\right) + x \cdot y\right)}}{a} \]
      5. associate-/l*84.2%

        \[\leadsto \color{blue}{\frac{0.5}{\frac{a}{-9 \cdot \left(t \cdot z\right) + x \cdot y}}} \]
      6. +-commutative84.2%

        \[\leadsto \frac{0.5}{\frac{a}{\color{blue}{x \cdot y + -9 \cdot \left(t \cdot z\right)}}} \]
      7. metadata-eval84.2%

        \[\leadsto \frac{0.5}{\frac{a}{x \cdot y + \color{blue}{\left(-9\right)} \cdot \left(t \cdot z\right)}} \]
      8. cancel-sign-sub-inv84.2%

        \[\leadsto \frac{0.5}{\frac{a}{\color{blue}{x \cdot y - 9 \cdot \left(t \cdot z\right)}}} \]
      9. fma-neg85.3%

        \[\leadsto \frac{0.5}{\frac{a}{\color{blue}{\mathsf{fma}\left(x, y, -9 \cdot \left(t \cdot z\right)\right)}}} \]
      10. *-commutative85.3%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, -9 \cdot \color{blue}{\left(z \cdot t\right)}\right)}} \]
      11. distribute-lft-neg-in85.3%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{\left(-9\right) \cdot \left(z \cdot t\right)}\right)}} \]
      12. metadata-eval85.3%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{-9} \cdot \left(z \cdot t\right)\right)}} \]
      13. *-commutative85.3%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{\left(z \cdot t\right) \cdot -9}\right)}} \]
      14. associate-*l*85.2%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{z \cdot \left(t \cdot -9\right)}\right)}} \]
    7. Simplified85.2%

      \[\leadsto \color{blue}{\frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, z \cdot \left(t \cdot -9\right)\right)}}} \]
    8. Taylor expanded in x around 0 84.3%

      \[\leadsto \color{blue}{-4.5 \cdot \frac{t \cdot z}{a} + 0.5 \cdot \frac{x \cdot y}{a}} \]
    9. Step-by-step derivation
      1. fma-def84.3%

        \[\leadsto \color{blue}{\mathsf{fma}\left(-4.5, \frac{t \cdot z}{a}, 0.5 \cdot \frac{x \cdot y}{a}\right)} \]
      2. associate-*r/83.7%

        \[\leadsto \mathsf{fma}\left(-4.5, \color{blue}{t \cdot \frac{z}{a}}, 0.5 \cdot \frac{x \cdot y}{a}\right) \]
      3. associate-*l/89.7%

        \[\leadsto \mathsf{fma}\left(-4.5, t \cdot \frac{z}{a}, 0.5 \cdot \color{blue}{\left(\frac{x}{a} \cdot y\right)}\right) \]
      4. *-commutative89.7%

        \[\leadsto \mathsf{fma}\left(-4.5, t \cdot \frac{z}{a}, 0.5 \cdot \color{blue}{\left(y \cdot \frac{x}{a}\right)}\right) \]
      5. *-commutative89.7%

        \[\leadsto \mathsf{fma}\left(-4.5, t \cdot \frac{z}{a}, \color{blue}{\left(y \cdot \frac{x}{a}\right) \cdot 0.5}\right) \]
      6. *-commutative89.7%

        \[\leadsto \mathsf{fma}\left(-4.5, t \cdot \frac{z}{a}, \color{blue}{\left(\frac{x}{a} \cdot y\right)} \cdot 0.5\right) \]
      7. associate-*r*89.7%

        \[\leadsto \mathsf{fma}\left(-4.5, t \cdot \frac{z}{a}, \color{blue}{\frac{x}{a} \cdot \left(y \cdot 0.5\right)}\right) \]
    10. Simplified89.7%

      \[\leadsto \color{blue}{\mathsf{fma}\left(-4.5, t \cdot \frac{z}{a}, \frac{x}{a} \cdot \left(y \cdot 0.5\right)\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification90.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;a \cdot 2 \leq 5 \cdot 10^{-115}:\\ \;\;\;\;\frac{\mathsf{fma}\left(x, y, z \cdot \left(t \cdot -9\right)\right)}{a \cdot 2}\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(-4.5, t \cdot \frac{z}{a}, \frac{x}{a} \cdot \left(y \cdot 0.5\right)\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 3: 92.4% accurate, 0.1× speedup?

\[\begin{array}{l} [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\\\ [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\ \\ \begin{array}{l} \mathbf{if}\;a \cdot 2 \leq 10^{+91}:\\ \;\;\;\;\frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, z \cdot \left(t \cdot -9\right)\right)}}\\ \mathbf{else}:\\ \;\;\;\;\frac{y}{a} \cdot \frac{x}{2} - \left(9 \cdot \left(z \cdot t\right)\right) \cdot \frac{0.5}{a}\\ \end{array} \end{array} \]
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
(FPCore (x y z t a)
 :precision binary64
 (if (<= (* a 2.0) 1e+91)
   (/ 0.5 (/ a (fma x y (* z (* t -9.0)))))
   (- (* (/ y a) (/ x 2.0)) (* (* 9.0 (* z t)) (/ 0.5 a)))))
assert(x < y && y < z && z < t && t < a);
assert(x < y && y < z && z < t && t < a);
double code(double x, double y, double z, double t, double a) {
	double tmp;
	if ((a * 2.0) <= 1e+91) {
		tmp = 0.5 / (a / fma(x, y, (z * (t * -9.0))));
	} else {
		tmp = ((y / a) * (x / 2.0)) - ((9.0 * (z * t)) * (0.5 / a));
	}
	return tmp;
}
x, y, z, t, a = sort([x, y, z, t, a])
x, y, z, t, a = sort([x, y, z, t, a])
function code(x, y, z, t, a)
	tmp = 0.0
	if (Float64(a * 2.0) <= 1e+91)
		tmp = Float64(0.5 / Float64(a / fma(x, y, Float64(z * Float64(t * -9.0)))));
	else
		tmp = Float64(Float64(Float64(y / a) * Float64(x / 2.0)) - Float64(Float64(9.0 * Float64(z * t)) * Float64(0.5 / a)));
	end
	return tmp
end
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_, a_] := If[LessEqual[N[(a * 2.0), $MachinePrecision], 1e+91], N[(0.5 / N[(a / N[(x * y + N[(z * N[(t * -9.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(N[(y / a), $MachinePrecision] * N[(x / 2.0), $MachinePrecision]), $MachinePrecision] - N[(N[(9.0 * N[(z * t), $MachinePrecision]), $MachinePrecision] * N[(0.5 / a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
[x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\\\
[x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\
\\
\begin{array}{l}
\mathbf{if}\;a \cdot 2 \leq 10^{+91}:\\
\;\;\;\;\frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, z \cdot \left(t \cdot -9\right)\right)}}\\

\mathbf{else}:\\
\;\;\;\;\frac{y}{a} \cdot \frac{x}{2} - \left(9 \cdot \left(z \cdot t\right)\right) \cdot \frac{0.5}{a}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (*.f64 a 2) < 1.00000000000000008e91

    1. Initial program 90.4%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. associate-*l*89.9%

        \[\leadsto \frac{x \cdot y - \color{blue}{z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
    3. Simplified89.9%

      \[\leadsto \color{blue}{\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}} \]
    4. Add Preprocessing
    5. Taylor expanded in a around 0 90.4%

      \[\leadsto \color{blue}{0.5 \cdot \frac{x \cdot y - 9 \cdot \left(t \cdot z\right)}{a}} \]
    6. Step-by-step derivation
      1. associate-*r/90.4%

        \[\leadsto \color{blue}{\frac{0.5 \cdot \left(x \cdot y - 9 \cdot \left(t \cdot z\right)\right)}{a}} \]
      2. cancel-sign-sub-inv90.4%

        \[\leadsto \frac{0.5 \cdot \color{blue}{\left(x \cdot y + \left(-9\right) \cdot \left(t \cdot z\right)\right)}}{a} \]
      3. metadata-eval90.4%

        \[\leadsto \frac{0.5 \cdot \left(x \cdot y + \color{blue}{-9} \cdot \left(t \cdot z\right)\right)}{a} \]
      4. +-commutative90.4%

        \[\leadsto \frac{0.5 \cdot \color{blue}{\left(-9 \cdot \left(t \cdot z\right) + x \cdot y\right)}}{a} \]
      5. associate-/l*90.3%

        \[\leadsto \color{blue}{\frac{0.5}{\frac{a}{-9 \cdot \left(t \cdot z\right) + x \cdot y}}} \]
      6. +-commutative90.3%

        \[\leadsto \frac{0.5}{\frac{a}{\color{blue}{x \cdot y + -9 \cdot \left(t \cdot z\right)}}} \]
      7. metadata-eval90.3%

        \[\leadsto \frac{0.5}{\frac{a}{x \cdot y + \color{blue}{\left(-9\right)} \cdot \left(t \cdot z\right)}} \]
      8. cancel-sign-sub-inv90.3%

        \[\leadsto \frac{0.5}{\frac{a}{\color{blue}{x \cdot y - 9 \cdot \left(t \cdot z\right)}}} \]
      9. fma-neg91.7%

        \[\leadsto \frac{0.5}{\frac{a}{\color{blue}{\mathsf{fma}\left(x, y, -9 \cdot \left(t \cdot z\right)\right)}}} \]
      10. *-commutative91.7%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, -9 \cdot \color{blue}{\left(z \cdot t\right)}\right)}} \]
      11. distribute-lft-neg-in91.7%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{\left(-9\right) \cdot \left(z \cdot t\right)}\right)}} \]
      12. metadata-eval91.7%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{-9} \cdot \left(z \cdot t\right)\right)}} \]
      13. *-commutative91.7%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{\left(z \cdot t\right) \cdot -9}\right)}} \]
      14. associate-*l*91.2%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{z \cdot \left(t \cdot -9\right)}\right)}} \]
    7. Simplified91.2%

      \[\leadsto \color{blue}{\frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, z \cdot \left(t \cdot -9\right)\right)}}} \]

    if 1.00000000000000008e91 < (*.f64 a 2)

    1. Initial program 78.4%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. associate-*l*78.4%

        \[\leadsto \frac{x \cdot y - \color{blue}{z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
    3. Simplified78.4%

      \[\leadsto \color{blue}{\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}} \]
    4. Add Preprocessing
    5. Step-by-step derivation
      1. div-sub78.5%

        \[\leadsto \color{blue}{\frac{x \cdot y}{a \cdot 2} - \frac{z \cdot \left(9 \cdot t\right)}{a \cdot 2}} \]
      2. *-commutative78.5%

        \[\leadsto \frac{x \cdot y}{\color{blue}{2 \cdot a}} - \frac{z \cdot \left(9 \cdot t\right)}{a \cdot 2} \]
      3. times-frac89.1%

        \[\leadsto \color{blue}{\frac{x}{2} \cdot \frac{y}{a}} - \frac{z \cdot \left(9 \cdot t\right)}{a \cdot 2} \]
      4. div-inv89.0%

        \[\leadsto \frac{x}{2} \cdot \frac{y}{a} - \color{blue}{\left(z \cdot \left(9 \cdot t\right)\right) \cdot \frac{1}{a \cdot 2}} \]
      5. associate-*r*89.1%

        \[\leadsto \frac{x}{2} \cdot \frac{y}{a} - \color{blue}{\left(\left(z \cdot 9\right) \cdot t\right)} \cdot \frac{1}{a \cdot 2} \]
      6. *-commutative89.1%

        \[\leadsto \frac{x}{2} \cdot \frac{y}{a} - \left(\color{blue}{\left(9 \cdot z\right)} \cdot t\right) \cdot \frac{1}{a \cdot 2} \]
      7. associate-*l*89.0%

        \[\leadsto \frac{x}{2} \cdot \frac{y}{a} - \color{blue}{\left(9 \cdot \left(z \cdot t\right)\right)} \cdot \frac{1}{a \cdot 2} \]
      8. *-commutative89.0%

        \[\leadsto \frac{x}{2} \cdot \frac{y}{a} - \left(9 \cdot \left(z \cdot t\right)\right) \cdot \frac{1}{\color{blue}{2 \cdot a}} \]
      9. associate-/r*89.0%

        \[\leadsto \frac{x}{2} \cdot \frac{y}{a} - \left(9 \cdot \left(z \cdot t\right)\right) \cdot \color{blue}{\frac{\frac{1}{2}}{a}} \]
      10. metadata-eval89.0%

        \[\leadsto \frac{x}{2} \cdot \frac{y}{a} - \left(9 \cdot \left(z \cdot t\right)\right) \cdot \frac{\color{blue}{0.5}}{a} \]
    6. Applied egg-rr89.0%

      \[\leadsto \color{blue}{\frac{x}{2} \cdot \frac{y}{a} - \left(9 \cdot \left(z \cdot t\right)\right) \cdot \frac{0.5}{a}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification90.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;a \cdot 2 \leq 10^{+91}:\\ \;\;\;\;\frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, z \cdot \left(t \cdot -9\right)\right)}}\\ \mathbf{else}:\\ \;\;\;\;\frac{y}{a} \cdot \frac{x}{2} - \left(9 \cdot \left(z \cdot t\right)\right) \cdot \frac{0.5}{a}\\ \end{array} \]
  5. Add Preprocessing

Alternative 4: 92.6% accurate, 0.1× speedup?

\[\begin{array}{l} [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\\\ [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\ \\ \begin{array}{l} \mathbf{if}\;a \cdot 2 \leq 5 \cdot 10^{+77}:\\ \;\;\;\;\frac{\mathsf{fma}\left(x, y, z \cdot \left(t \cdot -9\right)\right)}{a \cdot 2}\\ \mathbf{else}:\\ \;\;\;\;\frac{y}{a} \cdot \frac{x}{2} - \left(9 \cdot \left(z \cdot t\right)\right) \cdot \frac{0.5}{a}\\ \end{array} \end{array} \]
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
(FPCore (x y z t a)
 :precision binary64
 (if (<= (* a 2.0) 5e+77)
   (/ (fma x y (* z (* t -9.0))) (* a 2.0))
   (- (* (/ y a) (/ x 2.0)) (* (* 9.0 (* z t)) (/ 0.5 a)))))
assert(x < y && y < z && z < t && t < a);
assert(x < y && y < z && z < t && t < a);
double code(double x, double y, double z, double t, double a) {
	double tmp;
	if ((a * 2.0) <= 5e+77) {
		tmp = fma(x, y, (z * (t * -9.0))) / (a * 2.0);
	} else {
		tmp = ((y / a) * (x / 2.0)) - ((9.0 * (z * t)) * (0.5 / a));
	}
	return tmp;
}
x, y, z, t, a = sort([x, y, z, t, a])
x, y, z, t, a = sort([x, y, z, t, a])
function code(x, y, z, t, a)
	tmp = 0.0
	if (Float64(a * 2.0) <= 5e+77)
		tmp = Float64(fma(x, y, Float64(z * Float64(t * -9.0))) / Float64(a * 2.0));
	else
		tmp = Float64(Float64(Float64(y / a) * Float64(x / 2.0)) - Float64(Float64(9.0 * Float64(z * t)) * Float64(0.5 / a)));
	end
	return tmp
end
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_, a_] := If[LessEqual[N[(a * 2.0), $MachinePrecision], 5e+77], N[(N[(x * y + N[(z * N[(t * -9.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(a * 2.0), $MachinePrecision]), $MachinePrecision], N[(N[(N[(y / a), $MachinePrecision] * N[(x / 2.0), $MachinePrecision]), $MachinePrecision] - N[(N[(9.0 * N[(z * t), $MachinePrecision]), $MachinePrecision] * N[(0.5 / a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
[x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\\\
[x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\
\\
\begin{array}{l}
\mathbf{if}\;a \cdot 2 \leq 5 \cdot 10^{+77}:\\
\;\;\;\;\frac{\mathsf{fma}\left(x, y, z \cdot \left(t \cdot -9\right)\right)}{a \cdot 2}\\

\mathbf{else}:\\
\;\;\;\;\frac{y}{a} \cdot \frac{x}{2} - \left(9 \cdot \left(z \cdot t\right)\right) \cdot \frac{0.5}{a}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (*.f64 a 2) < 5.00000000000000004e77

    1. Initial program 90.6%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. *-commutative90.6%

        \[\leadsto \frac{\color{blue}{y \cdot x} - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
      2. *-commutative90.6%

        \[\leadsto \frac{\color{blue}{x \cdot y} - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
      3. cancel-sign-sub-inv90.6%

        \[\leadsto \frac{\color{blue}{x \cdot y + \left(-z \cdot 9\right) \cdot t}}{a \cdot 2} \]
      4. fma-def92.1%

        \[\leadsto \frac{\color{blue}{\mathsf{fma}\left(x, y, \left(-z \cdot 9\right) \cdot t\right)}}{a \cdot 2} \]
      5. distribute-rgt-neg-in92.1%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \color{blue}{\left(z \cdot \left(-9\right)\right)} \cdot t\right)}{a \cdot 2} \]
      6. associate-*r*91.6%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \color{blue}{z \cdot \left(\left(-9\right) \cdot t\right)}\right)}{a \cdot 2} \]
      7. distribute-lft-neg-in91.6%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, z \cdot \color{blue}{\left(-9 \cdot t\right)}\right)}{a \cdot 2} \]
      8. *-commutative91.6%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, z \cdot \left(-\color{blue}{t \cdot 9}\right)\right)}{a \cdot 2} \]
      9. distribute-rgt-neg-in91.6%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, z \cdot \color{blue}{\left(t \cdot \left(-9\right)\right)}\right)}{a \cdot 2} \]
      10. metadata-eval91.6%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, z \cdot \left(t \cdot \color{blue}{-9}\right)\right)}{a \cdot 2} \]
    3. Simplified91.6%

      \[\leadsto \color{blue}{\frac{\mathsf{fma}\left(x, y, z \cdot \left(t \cdot -9\right)\right)}{a \cdot 2}} \]
    4. Add Preprocessing

    if 5.00000000000000004e77 < (*.f64 a 2)

    1. Initial program 78.3%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. associate-*l*78.3%

        \[\leadsto \frac{x \cdot y - \color{blue}{z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
    3. Simplified78.3%

      \[\leadsto \color{blue}{\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}} \]
    4. Add Preprocessing
    5. Step-by-step derivation
      1. div-sub78.3%

        \[\leadsto \color{blue}{\frac{x \cdot y}{a \cdot 2} - \frac{z \cdot \left(9 \cdot t\right)}{a \cdot 2}} \]
      2. *-commutative78.3%

        \[\leadsto \frac{x \cdot y}{\color{blue}{2 \cdot a}} - \frac{z \cdot \left(9 \cdot t\right)}{a \cdot 2} \]
      3. times-frac89.4%

        \[\leadsto \color{blue}{\frac{x}{2} \cdot \frac{y}{a}} - \frac{z \cdot \left(9 \cdot t\right)}{a \cdot 2} \]
      4. div-inv89.3%

        \[\leadsto \frac{x}{2} \cdot \frac{y}{a} - \color{blue}{\left(z \cdot \left(9 \cdot t\right)\right) \cdot \frac{1}{a \cdot 2}} \]
      5. associate-*r*89.4%

        \[\leadsto \frac{x}{2} \cdot \frac{y}{a} - \color{blue}{\left(\left(z \cdot 9\right) \cdot t\right)} \cdot \frac{1}{a \cdot 2} \]
      6. *-commutative89.4%

        \[\leadsto \frac{x}{2} \cdot \frac{y}{a} - \left(\color{blue}{\left(9 \cdot z\right)} \cdot t\right) \cdot \frac{1}{a \cdot 2} \]
      7. associate-*l*89.3%

        \[\leadsto \frac{x}{2} \cdot \frac{y}{a} - \color{blue}{\left(9 \cdot \left(z \cdot t\right)\right)} \cdot \frac{1}{a \cdot 2} \]
      8. *-commutative89.3%

        \[\leadsto \frac{x}{2} \cdot \frac{y}{a} - \left(9 \cdot \left(z \cdot t\right)\right) \cdot \frac{1}{\color{blue}{2 \cdot a}} \]
      9. associate-/r*89.3%

        \[\leadsto \frac{x}{2} \cdot \frac{y}{a} - \left(9 \cdot \left(z \cdot t\right)\right) \cdot \color{blue}{\frac{\frac{1}{2}}{a}} \]
      10. metadata-eval89.3%

        \[\leadsto \frac{x}{2} \cdot \frac{y}{a} - \left(9 \cdot \left(z \cdot t\right)\right) \cdot \frac{\color{blue}{0.5}}{a} \]
    6. Applied egg-rr89.3%

      \[\leadsto \color{blue}{\frac{x}{2} \cdot \frac{y}{a} - \left(9 \cdot \left(z \cdot t\right)\right) \cdot \frac{0.5}{a}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification91.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;a \cdot 2 \leq 5 \cdot 10^{+77}:\\ \;\;\;\;\frac{\mathsf{fma}\left(x, y, z \cdot \left(t \cdot -9\right)\right)}{a \cdot 2}\\ \mathbf{else}:\\ \;\;\;\;\frac{y}{a} \cdot \frac{x}{2} - \left(9 \cdot \left(z \cdot t\right)\right) \cdot \frac{0.5}{a}\\ \end{array} \]
  5. Add Preprocessing

Alternative 5: 73.3% accurate, 0.6× speedup?

\[\begin{array}{l} [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\\\ [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\ \\ \begin{array}{l} \mathbf{if}\;x \cdot y \leq -2 \cdot 10^{+107}:\\ \;\;\;\;0.5 \cdot \frac{x}{\frac{a}{y}}\\ \mathbf{elif}\;x \cdot y \leq -2 \cdot 10^{-8}:\\ \;\;\;\;-4.5 \cdot \left(z \cdot \frac{t}{a}\right)\\ \mathbf{elif}\;x \cdot y \leq -5 \cdot 10^{-38} \lor \neg \left(x \cdot y \leq 5 \cdot 10^{+62}\right):\\ \;\;\;\;\frac{y \cdot 0.5}{\frac{a}{x}}\\ \mathbf{else}:\\ \;\;\;\;-4.5 \cdot \frac{z \cdot t}{a}\\ \end{array} \end{array} \]
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
(FPCore (x y z t a)
 :precision binary64
 (if (<= (* x y) -2e+107)
   (* 0.5 (/ x (/ a y)))
   (if (<= (* x y) -2e-8)
     (* -4.5 (* z (/ t a)))
     (if (or (<= (* x y) -5e-38) (not (<= (* x y) 5e+62)))
       (/ (* y 0.5) (/ a x))
       (* -4.5 (/ (* z t) a))))))
assert(x < y && y < z && z < t && t < a);
assert(x < y && y < z && z < t && t < a);
double code(double x, double y, double z, double t, double a) {
	double tmp;
	if ((x * y) <= -2e+107) {
		tmp = 0.5 * (x / (a / y));
	} else if ((x * y) <= -2e-8) {
		tmp = -4.5 * (z * (t / a));
	} else if (((x * y) <= -5e-38) || !((x * y) <= 5e+62)) {
		tmp = (y * 0.5) / (a / x);
	} else {
		tmp = -4.5 * ((z * t) / a);
	}
	return tmp;
}
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
real(8) function code(x, y, z, t, a)
    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) :: tmp
    if ((x * y) <= (-2d+107)) then
        tmp = 0.5d0 * (x / (a / y))
    else if ((x * y) <= (-2d-8)) then
        tmp = (-4.5d0) * (z * (t / a))
    else if (((x * y) <= (-5d-38)) .or. (.not. ((x * y) <= 5d+62))) then
        tmp = (y * 0.5d0) / (a / x)
    else
        tmp = (-4.5d0) * ((z * t) / a)
    end if
    code = tmp
end function
assert x < y && y < z && z < t && t < a;
assert x < y && y < z && z < t && t < a;
public static double code(double x, double y, double z, double t, double a) {
	double tmp;
	if ((x * y) <= -2e+107) {
		tmp = 0.5 * (x / (a / y));
	} else if ((x * y) <= -2e-8) {
		tmp = -4.5 * (z * (t / a));
	} else if (((x * y) <= -5e-38) || !((x * y) <= 5e+62)) {
		tmp = (y * 0.5) / (a / x);
	} else {
		tmp = -4.5 * ((z * t) / a);
	}
	return tmp;
}
[x, y, z, t, a] = sort([x, y, z, t, a])
[x, y, z, t, a] = sort([x, y, z, t, a])
def code(x, y, z, t, a):
	tmp = 0
	if (x * y) <= -2e+107:
		tmp = 0.5 * (x / (a / y))
	elif (x * y) <= -2e-8:
		tmp = -4.5 * (z * (t / a))
	elif ((x * y) <= -5e-38) or not ((x * y) <= 5e+62):
		tmp = (y * 0.5) / (a / x)
	else:
		tmp = -4.5 * ((z * t) / a)
	return tmp
x, y, z, t, a = sort([x, y, z, t, a])
x, y, z, t, a = sort([x, y, z, t, a])
function code(x, y, z, t, a)
	tmp = 0.0
	if (Float64(x * y) <= -2e+107)
		tmp = Float64(0.5 * Float64(x / Float64(a / y)));
	elseif (Float64(x * y) <= -2e-8)
		tmp = Float64(-4.5 * Float64(z * Float64(t / a)));
	elseif ((Float64(x * y) <= -5e-38) || !(Float64(x * y) <= 5e+62))
		tmp = Float64(Float64(y * 0.5) / Float64(a / x));
	else
		tmp = Float64(-4.5 * Float64(Float64(z * t) / a));
	end
	return tmp
end
x, y, z, t, a = num2cell(sort([x, y, z, t, a])){:}
x, y, z, t, a = num2cell(sort([x, y, z, t, a])){:}
function tmp_2 = code(x, y, z, t, a)
	tmp = 0.0;
	if ((x * y) <= -2e+107)
		tmp = 0.5 * (x / (a / y));
	elseif ((x * y) <= -2e-8)
		tmp = -4.5 * (z * (t / a));
	elseif (((x * y) <= -5e-38) || ~(((x * y) <= 5e+62)))
		tmp = (y * 0.5) / (a / x);
	else
		tmp = -4.5 * ((z * t) / a);
	end
	tmp_2 = tmp;
end
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_, a_] := If[LessEqual[N[(x * y), $MachinePrecision], -2e+107], N[(0.5 * N[(x / N[(a / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[N[(x * y), $MachinePrecision], -2e-8], N[(-4.5 * N[(z * N[(t / a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[Or[LessEqual[N[(x * y), $MachinePrecision], -5e-38], N[Not[LessEqual[N[(x * y), $MachinePrecision], 5e+62]], $MachinePrecision]], N[(N[(y * 0.5), $MachinePrecision] / N[(a / x), $MachinePrecision]), $MachinePrecision], N[(-4.5 * N[(N[(z * t), $MachinePrecision] / a), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}
[x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\\\
[x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\
\\
\begin{array}{l}
\mathbf{if}\;x \cdot y \leq -2 \cdot 10^{+107}:\\
\;\;\;\;0.5 \cdot \frac{x}{\frac{a}{y}}\\

\mathbf{elif}\;x \cdot y \leq -2 \cdot 10^{-8}:\\
\;\;\;\;-4.5 \cdot \left(z \cdot \frac{t}{a}\right)\\

\mathbf{elif}\;x \cdot y \leq -5 \cdot 10^{-38} \lor \neg \left(x \cdot y \leq 5 \cdot 10^{+62}\right):\\
\;\;\;\;\frac{y \cdot 0.5}{\frac{a}{x}}\\

\mathbf{else}:\\
\;\;\;\;-4.5 \cdot \frac{z \cdot t}{a}\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if (*.f64 x y) < -1.9999999999999999e107

    1. Initial program 75.9%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. associate-*l*73.9%

        \[\leadsto \frac{x \cdot y - \color{blue}{z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
    3. Simplified73.9%

      \[\leadsto \color{blue}{\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 78.5%

      \[\leadsto \color{blue}{0.5 \cdot \frac{x \cdot y}{a}} \]
    6. Step-by-step derivation
      1. associate-/l*91.2%

        \[\leadsto 0.5 \cdot \color{blue}{\frac{x}{\frac{a}{y}}} \]
    7. Simplified91.2%

      \[\leadsto \color{blue}{0.5 \cdot \frac{x}{\frac{a}{y}}} \]

    if -1.9999999999999999e107 < (*.f64 x y) < -2e-8

    1. Initial program 88.9%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. associate-*l*88.9%

        \[\leadsto \frac{x \cdot y - \color{blue}{z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
    3. Simplified88.9%

      \[\leadsto \color{blue}{\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around 0 54.4%

      \[\leadsto \color{blue}{-4.5 \cdot \frac{t \cdot z}{a}} \]
    6. Step-by-step derivation
      1. associate-/l*65.3%

        \[\leadsto -4.5 \cdot \color{blue}{\frac{t}{\frac{a}{z}}} \]
    7. Simplified65.3%

      \[\leadsto \color{blue}{-4.5 \cdot \frac{t}{\frac{a}{z}}} \]
    8. Step-by-step derivation
      1. associate-/r/59.7%

        \[\leadsto -4.5 \cdot \color{blue}{\left(\frac{t}{a} \cdot z\right)} \]
    9. Applied egg-rr59.7%

      \[\leadsto -4.5 \cdot \color{blue}{\left(\frac{t}{a} \cdot z\right)} \]

    if -2e-8 < (*.f64 x y) < -5.00000000000000033e-38 or 5.00000000000000029e62 < (*.f64 x y)

    1. Initial program 78.7%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. associate-*l*78.7%

        \[\leadsto \frac{x \cdot y - \color{blue}{z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
    3. Simplified78.7%

      \[\leadsto \color{blue}{\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 76.5%

      \[\leadsto \color{blue}{0.5 \cdot \frac{x \cdot y}{a}} \]
    6. Step-by-step derivation
      1. associate-/l*76.3%

        \[\leadsto 0.5 \cdot \color{blue}{\frac{x}{\frac{a}{y}}} \]
    7. Simplified76.3%

      \[\leadsto \color{blue}{0.5 \cdot \frac{x}{\frac{a}{y}}} \]
    8. Step-by-step derivation
      1. associate-*r/76.3%

        \[\leadsto \color{blue}{\frac{0.5 \cdot x}{\frac{a}{y}}} \]
      2. associate-/l*76.2%

        \[\leadsto \color{blue}{\frac{0.5}{\frac{\frac{a}{y}}{x}}} \]
      3. associate-/l/76.5%

        \[\leadsto \frac{0.5}{\color{blue}{\frac{a}{x \cdot y}}} \]
      4. *-commutative76.5%

        \[\leadsto \frac{0.5}{\frac{a}{\color{blue}{y \cdot x}}} \]
      5. associate-/l*76.5%

        \[\leadsto \color{blue}{\frac{0.5 \cdot \left(y \cdot x\right)}{a}} \]
      6. associate-*l*76.5%

        \[\leadsto \frac{\color{blue}{\left(0.5 \cdot y\right) \cdot x}}{a} \]
      7. associate-/l*84.4%

        \[\leadsto \color{blue}{\frac{0.5 \cdot y}{\frac{a}{x}}} \]
      8. *-commutative84.4%

        \[\leadsto \frac{\color{blue}{y \cdot 0.5}}{\frac{a}{x}} \]
    9. Applied egg-rr84.4%

      \[\leadsto \color{blue}{\frac{y \cdot 0.5}{\frac{a}{x}}} \]

    if -5.00000000000000033e-38 < (*.f64 x y) < 5.00000000000000029e62

    1. Initial program 95.3%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. associate-*l*95.3%

        \[\leadsto \frac{x \cdot y - \color{blue}{z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
    3. Simplified95.3%

      \[\leadsto \color{blue}{\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around 0 77.0%

      \[\leadsto \color{blue}{-4.5 \cdot \frac{t \cdot z}{a}} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification79.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \cdot y \leq -2 \cdot 10^{+107}:\\ \;\;\;\;0.5 \cdot \frac{x}{\frac{a}{y}}\\ \mathbf{elif}\;x \cdot y \leq -2 \cdot 10^{-8}:\\ \;\;\;\;-4.5 \cdot \left(z \cdot \frac{t}{a}\right)\\ \mathbf{elif}\;x \cdot y \leq -5 \cdot 10^{-38} \lor \neg \left(x \cdot y \leq 5 \cdot 10^{+62}\right):\\ \;\;\;\;\frac{y \cdot 0.5}{\frac{a}{x}}\\ \mathbf{else}:\\ \;\;\;\;-4.5 \cdot \frac{z \cdot t}{a}\\ \end{array} \]
  5. Add Preprocessing

Alternative 6: 73.4% accurate, 0.6× speedup?

\[\begin{array}{l} [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\\\ [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\ \\ \begin{array}{l} \mathbf{if}\;x \cdot y \leq -2 \cdot 10^{+107}:\\ \;\;\;\;0.5 \cdot \frac{x}{\frac{a}{y}}\\ \mathbf{elif}\;x \cdot y \leq -2 \cdot 10^{-8}:\\ \;\;\;\;-4.5 \cdot \left(z \cdot \frac{t}{a}\right)\\ \mathbf{elif}\;x \cdot y \leq -5 \cdot 10^{-38} \lor \neg \left(x \cdot y \leq 5 \cdot 10^{+62}\right):\\ \;\;\;\;\frac{y \cdot 0.5}{\frac{a}{x}}\\ \mathbf{else}:\\ \;\;\;\;\frac{t \cdot \left(z \cdot -4.5\right)}{a}\\ \end{array} \end{array} \]
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
(FPCore (x y z t a)
 :precision binary64
 (if (<= (* x y) -2e+107)
   (* 0.5 (/ x (/ a y)))
   (if (<= (* x y) -2e-8)
     (* -4.5 (* z (/ t a)))
     (if (or (<= (* x y) -5e-38) (not (<= (* x y) 5e+62)))
       (/ (* y 0.5) (/ a x))
       (/ (* t (* z -4.5)) a)))))
assert(x < y && y < z && z < t && t < a);
assert(x < y && y < z && z < t && t < a);
double code(double x, double y, double z, double t, double a) {
	double tmp;
	if ((x * y) <= -2e+107) {
		tmp = 0.5 * (x / (a / y));
	} else if ((x * y) <= -2e-8) {
		tmp = -4.5 * (z * (t / a));
	} else if (((x * y) <= -5e-38) || !((x * y) <= 5e+62)) {
		tmp = (y * 0.5) / (a / x);
	} else {
		tmp = (t * (z * -4.5)) / a;
	}
	return tmp;
}
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
real(8) function code(x, y, z, t, a)
    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) :: tmp
    if ((x * y) <= (-2d+107)) then
        tmp = 0.5d0 * (x / (a / y))
    else if ((x * y) <= (-2d-8)) then
        tmp = (-4.5d0) * (z * (t / a))
    else if (((x * y) <= (-5d-38)) .or. (.not. ((x * y) <= 5d+62))) then
        tmp = (y * 0.5d0) / (a / x)
    else
        tmp = (t * (z * (-4.5d0))) / a
    end if
    code = tmp
end function
assert x < y && y < z && z < t && t < a;
assert x < y && y < z && z < t && t < a;
public static double code(double x, double y, double z, double t, double a) {
	double tmp;
	if ((x * y) <= -2e+107) {
		tmp = 0.5 * (x / (a / y));
	} else if ((x * y) <= -2e-8) {
		tmp = -4.5 * (z * (t / a));
	} else if (((x * y) <= -5e-38) || !((x * y) <= 5e+62)) {
		tmp = (y * 0.5) / (a / x);
	} else {
		tmp = (t * (z * -4.5)) / a;
	}
	return tmp;
}
[x, y, z, t, a] = sort([x, y, z, t, a])
[x, y, z, t, a] = sort([x, y, z, t, a])
def code(x, y, z, t, a):
	tmp = 0
	if (x * y) <= -2e+107:
		tmp = 0.5 * (x / (a / y))
	elif (x * y) <= -2e-8:
		tmp = -4.5 * (z * (t / a))
	elif ((x * y) <= -5e-38) or not ((x * y) <= 5e+62):
		tmp = (y * 0.5) / (a / x)
	else:
		tmp = (t * (z * -4.5)) / a
	return tmp
x, y, z, t, a = sort([x, y, z, t, a])
x, y, z, t, a = sort([x, y, z, t, a])
function code(x, y, z, t, a)
	tmp = 0.0
	if (Float64(x * y) <= -2e+107)
		tmp = Float64(0.5 * Float64(x / Float64(a / y)));
	elseif (Float64(x * y) <= -2e-8)
		tmp = Float64(-4.5 * Float64(z * Float64(t / a)));
	elseif ((Float64(x * y) <= -5e-38) || !(Float64(x * y) <= 5e+62))
		tmp = Float64(Float64(y * 0.5) / Float64(a / x));
	else
		tmp = Float64(Float64(t * Float64(z * -4.5)) / a);
	end
	return tmp
end
x, y, z, t, a = num2cell(sort([x, y, z, t, a])){:}
x, y, z, t, a = num2cell(sort([x, y, z, t, a])){:}
function tmp_2 = code(x, y, z, t, a)
	tmp = 0.0;
	if ((x * y) <= -2e+107)
		tmp = 0.5 * (x / (a / y));
	elseif ((x * y) <= -2e-8)
		tmp = -4.5 * (z * (t / a));
	elseif (((x * y) <= -5e-38) || ~(((x * y) <= 5e+62)))
		tmp = (y * 0.5) / (a / x);
	else
		tmp = (t * (z * -4.5)) / a;
	end
	tmp_2 = tmp;
end
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_, a_] := If[LessEqual[N[(x * y), $MachinePrecision], -2e+107], N[(0.5 * N[(x / N[(a / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[N[(x * y), $MachinePrecision], -2e-8], N[(-4.5 * N[(z * N[(t / a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[Or[LessEqual[N[(x * y), $MachinePrecision], -5e-38], N[Not[LessEqual[N[(x * y), $MachinePrecision], 5e+62]], $MachinePrecision]], N[(N[(y * 0.5), $MachinePrecision] / N[(a / x), $MachinePrecision]), $MachinePrecision], N[(N[(t * N[(z * -4.5), $MachinePrecision]), $MachinePrecision] / a), $MachinePrecision]]]]
\begin{array}{l}
[x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\\\
[x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\
\\
\begin{array}{l}
\mathbf{if}\;x \cdot y \leq -2 \cdot 10^{+107}:\\
\;\;\;\;0.5 \cdot \frac{x}{\frac{a}{y}}\\

\mathbf{elif}\;x \cdot y \leq -2 \cdot 10^{-8}:\\
\;\;\;\;-4.5 \cdot \left(z \cdot \frac{t}{a}\right)\\

\mathbf{elif}\;x \cdot y \leq -5 \cdot 10^{-38} \lor \neg \left(x \cdot y \leq 5 \cdot 10^{+62}\right):\\
\;\;\;\;\frac{y \cdot 0.5}{\frac{a}{x}}\\

\mathbf{else}:\\
\;\;\;\;\frac{t \cdot \left(z \cdot -4.5\right)}{a}\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if (*.f64 x y) < -1.9999999999999999e107

    1. Initial program 75.9%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. associate-*l*73.9%

        \[\leadsto \frac{x \cdot y - \color{blue}{z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
    3. Simplified73.9%

      \[\leadsto \color{blue}{\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 78.5%

      \[\leadsto \color{blue}{0.5 \cdot \frac{x \cdot y}{a}} \]
    6. Step-by-step derivation
      1. associate-/l*91.2%

        \[\leadsto 0.5 \cdot \color{blue}{\frac{x}{\frac{a}{y}}} \]
    7. Simplified91.2%

      \[\leadsto \color{blue}{0.5 \cdot \frac{x}{\frac{a}{y}}} \]

    if -1.9999999999999999e107 < (*.f64 x y) < -2e-8

    1. Initial program 88.9%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. associate-*l*88.9%

        \[\leadsto \frac{x \cdot y - \color{blue}{z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
    3. Simplified88.9%

      \[\leadsto \color{blue}{\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around 0 54.4%

      \[\leadsto \color{blue}{-4.5 \cdot \frac{t \cdot z}{a}} \]
    6. Step-by-step derivation
      1. associate-/l*65.3%

        \[\leadsto -4.5 \cdot \color{blue}{\frac{t}{\frac{a}{z}}} \]
    7. Simplified65.3%

      \[\leadsto \color{blue}{-4.5 \cdot \frac{t}{\frac{a}{z}}} \]
    8. Step-by-step derivation
      1. associate-/r/59.7%

        \[\leadsto -4.5 \cdot \color{blue}{\left(\frac{t}{a} \cdot z\right)} \]
    9. Applied egg-rr59.7%

      \[\leadsto -4.5 \cdot \color{blue}{\left(\frac{t}{a} \cdot z\right)} \]

    if -2e-8 < (*.f64 x y) < -5.00000000000000033e-38 or 5.00000000000000029e62 < (*.f64 x y)

    1. Initial program 78.7%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. associate-*l*78.7%

        \[\leadsto \frac{x \cdot y - \color{blue}{z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
    3. Simplified78.7%

      \[\leadsto \color{blue}{\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 76.5%

      \[\leadsto \color{blue}{0.5 \cdot \frac{x \cdot y}{a}} \]
    6. Step-by-step derivation
      1. associate-/l*76.3%

        \[\leadsto 0.5 \cdot \color{blue}{\frac{x}{\frac{a}{y}}} \]
    7. Simplified76.3%

      \[\leadsto \color{blue}{0.5 \cdot \frac{x}{\frac{a}{y}}} \]
    8. Step-by-step derivation
      1. associate-*r/76.3%

        \[\leadsto \color{blue}{\frac{0.5 \cdot x}{\frac{a}{y}}} \]
      2. associate-/l*76.2%

        \[\leadsto \color{blue}{\frac{0.5}{\frac{\frac{a}{y}}{x}}} \]
      3. associate-/l/76.5%

        \[\leadsto \frac{0.5}{\color{blue}{\frac{a}{x \cdot y}}} \]
      4. *-commutative76.5%

        \[\leadsto \frac{0.5}{\frac{a}{\color{blue}{y \cdot x}}} \]
      5. associate-/l*76.5%

        \[\leadsto \color{blue}{\frac{0.5 \cdot \left(y \cdot x\right)}{a}} \]
      6. associate-*l*76.5%

        \[\leadsto \frac{\color{blue}{\left(0.5 \cdot y\right) \cdot x}}{a} \]
      7. associate-/l*84.4%

        \[\leadsto \color{blue}{\frac{0.5 \cdot y}{\frac{a}{x}}} \]
      8. *-commutative84.4%

        \[\leadsto \frac{\color{blue}{y \cdot 0.5}}{\frac{a}{x}} \]
    9. Applied egg-rr84.4%

      \[\leadsto \color{blue}{\frac{y \cdot 0.5}{\frac{a}{x}}} \]

    if -5.00000000000000033e-38 < (*.f64 x y) < 5.00000000000000029e62

    1. Initial program 95.3%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. associate-*l*95.3%

        \[\leadsto \frac{x \cdot y - \color{blue}{z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
    3. Simplified95.3%

      \[\leadsto \color{blue}{\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around 0 77.0%

      \[\leadsto \color{blue}{-4.5 \cdot \frac{t \cdot z}{a}} \]
    6. Step-by-step derivation
      1. associate-*r/77.1%

        \[\leadsto \color{blue}{\frac{-4.5 \cdot \left(t \cdot z\right)}{a}} \]
      2. *-commutative77.1%

        \[\leadsto \frac{-4.5 \cdot \color{blue}{\left(z \cdot t\right)}}{a} \]
      3. associate-*r*77.1%

        \[\leadsto \frac{\color{blue}{\left(-4.5 \cdot z\right) \cdot t}}{a} \]
    7. Simplified77.1%

      \[\leadsto \color{blue}{\frac{\left(-4.5 \cdot z\right) \cdot t}{a}} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification79.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \cdot y \leq -2 \cdot 10^{+107}:\\ \;\;\;\;0.5 \cdot \frac{x}{\frac{a}{y}}\\ \mathbf{elif}\;x \cdot y \leq -2 \cdot 10^{-8}:\\ \;\;\;\;-4.5 \cdot \left(z \cdot \frac{t}{a}\right)\\ \mathbf{elif}\;x \cdot y \leq -5 \cdot 10^{-38} \lor \neg \left(x \cdot y \leq 5 \cdot 10^{+62}\right):\\ \;\;\;\;\frac{y \cdot 0.5}{\frac{a}{x}}\\ \mathbf{else}:\\ \;\;\;\;\frac{t \cdot \left(z \cdot -4.5\right)}{a}\\ \end{array} \]
  5. Add Preprocessing

Alternative 7: 74.0% accurate, 0.6× speedup?

\[\begin{array}{l} [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\\\ [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\ \\ \begin{array}{l} t_1 := 0.5 \cdot \frac{x}{\frac{a}{y}}\\ \mathbf{if}\;x \cdot y \leq -2 \cdot 10^{+107}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;x \cdot y \leq -2 \cdot 10^{-8}:\\ \;\;\;\;-4.5 \cdot \left(z \cdot \frac{t}{a}\right)\\ \mathbf{elif}\;x \cdot y \leq -2 \cdot 10^{-25}:\\ \;\;\;\;\left(x \cdot y\right) \cdot \frac{0.5}{a}\\ \mathbf{elif}\;x \cdot y \leq 4 \cdot 10^{+21}:\\ \;\;\;\;-4.5 \cdot \frac{z \cdot t}{a}\\ \mathbf{else}:\\ \;\;\;\;t_1\\ \end{array} \end{array} \]
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
(FPCore (x y z t a)
 :precision binary64
 (let* ((t_1 (* 0.5 (/ x (/ a y)))))
   (if (<= (* x y) -2e+107)
     t_1
     (if (<= (* x y) -2e-8)
       (* -4.5 (* z (/ t a)))
       (if (<= (* x y) -2e-25)
         (* (* x y) (/ 0.5 a))
         (if (<= (* x y) 4e+21) (* -4.5 (/ (* z t) a)) t_1))))))
assert(x < y && y < z && z < t && t < a);
assert(x < y && y < z && z < t && t < a);
double code(double x, double y, double z, double t, double a) {
	double t_1 = 0.5 * (x / (a / y));
	double tmp;
	if ((x * y) <= -2e+107) {
		tmp = t_1;
	} else if ((x * y) <= -2e-8) {
		tmp = -4.5 * (z * (t / a));
	} else if ((x * y) <= -2e-25) {
		tmp = (x * y) * (0.5 / a);
	} else if ((x * y) <= 4e+21) {
		tmp = -4.5 * ((z * t) / a);
	} else {
		tmp = t_1;
	}
	return tmp;
}
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
real(8) function code(x, y, z, t, a)
    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) :: t_1
    real(8) :: tmp
    t_1 = 0.5d0 * (x / (a / y))
    if ((x * y) <= (-2d+107)) then
        tmp = t_1
    else if ((x * y) <= (-2d-8)) then
        tmp = (-4.5d0) * (z * (t / a))
    else if ((x * y) <= (-2d-25)) then
        tmp = (x * y) * (0.5d0 / a)
    else if ((x * y) <= 4d+21) then
        tmp = (-4.5d0) * ((z * t) / a)
    else
        tmp = t_1
    end if
    code = tmp
end function
assert x < y && y < z && z < t && t < a;
assert x < y && y < z && z < t && t < a;
public static double code(double x, double y, double z, double t, double a) {
	double t_1 = 0.5 * (x / (a / y));
	double tmp;
	if ((x * y) <= -2e+107) {
		tmp = t_1;
	} else if ((x * y) <= -2e-8) {
		tmp = -4.5 * (z * (t / a));
	} else if ((x * y) <= -2e-25) {
		tmp = (x * y) * (0.5 / a);
	} else if ((x * y) <= 4e+21) {
		tmp = -4.5 * ((z * t) / a);
	} else {
		tmp = t_1;
	}
	return tmp;
}
[x, y, z, t, a] = sort([x, y, z, t, a])
[x, y, z, t, a] = sort([x, y, z, t, a])
def code(x, y, z, t, a):
	t_1 = 0.5 * (x / (a / y))
	tmp = 0
	if (x * y) <= -2e+107:
		tmp = t_1
	elif (x * y) <= -2e-8:
		tmp = -4.5 * (z * (t / a))
	elif (x * y) <= -2e-25:
		tmp = (x * y) * (0.5 / a)
	elif (x * y) <= 4e+21:
		tmp = -4.5 * ((z * t) / a)
	else:
		tmp = t_1
	return tmp
x, y, z, t, a = sort([x, y, z, t, a])
x, y, z, t, a = sort([x, y, z, t, a])
function code(x, y, z, t, a)
	t_1 = Float64(0.5 * Float64(x / Float64(a / y)))
	tmp = 0.0
	if (Float64(x * y) <= -2e+107)
		tmp = t_1;
	elseif (Float64(x * y) <= -2e-8)
		tmp = Float64(-4.5 * Float64(z * Float64(t / a)));
	elseif (Float64(x * y) <= -2e-25)
		tmp = Float64(Float64(x * y) * Float64(0.5 / a));
	elseif (Float64(x * y) <= 4e+21)
		tmp = Float64(-4.5 * Float64(Float64(z * t) / a));
	else
		tmp = t_1;
	end
	return tmp
end
x, y, z, t, a = num2cell(sort([x, y, z, t, a])){:}
x, y, z, t, a = num2cell(sort([x, y, z, t, a])){:}
function tmp_2 = code(x, y, z, t, a)
	t_1 = 0.5 * (x / (a / y));
	tmp = 0.0;
	if ((x * y) <= -2e+107)
		tmp = t_1;
	elseif ((x * y) <= -2e-8)
		tmp = -4.5 * (z * (t / a));
	elseif ((x * y) <= -2e-25)
		tmp = (x * y) * (0.5 / a);
	elseif ((x * y) <= 4e+21)
		tmp = -4.5 * ((z * t) / a);
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(0.5 * N[(x / N[(a / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[N[(x * y), $MachinePrecision], -2e+107], t$95$1, If[LessEqual[N[(x * y), $MachinePrecision], -2e-8], N[(-4.5 * N[(z * N[(t / a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[N[(x * y), $MachinePrecision], -2e-25], N[(N[(x * y), $MachinePrecision] * N[(0.5 / a), $MachinePrecision]), $MachinePrecision], If[LessEqual[N[(x * y), $MachinePrecision], 4e+21], N[(-4.5 * N[(N[(z * t), $MachinePrecision] / a), $MachinePrecision]), $MachinePrecision], t$95$1]]]]]
\begin{array}{l}
[x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\\\
[x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\
\\
\begin{array}{l}
t_1 := 0.5 \cdot \frac{x}{\frac{a}{y}}\\
\mathbf{if}\;x \cdot y \leq -2 \cdot 10^{+107}:\\
\;\;\;\;t_1\\

\mathbf{elif}\;x \cdot y \leq -2 \cdot 10^{-8}:\\
\;\;\;\;-4.5 \cdot \left(z \cdot \frac{t}{a}\right)\\

\mathbf{elif}\;x \cdot y \leq -2 \cdot 10^{-25}:\\
\;\;\;\;\left(x \cdot y\right) \cdot \frac{0.5}{a}\\

\mathbf{elif}\;x \cdot y \leq 4 \cdot 10^{+21}:\\
\;\;\;\;-4.5 \cdot \frac{z \cdot t}{a}\\

\mathbf{else}:\\
\;\;\;\;t_1\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if (*.f64 x y) < -1.9999999999999999e107 or 4e21 < (*.f64 x y)

    1. Initial program 78.8%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. associate-*l*77.9%

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

      \[\leadsto \color{blue}{\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 75.2%

      \[\leadsto \color{blue}{0.5 \cdot \frac{x \cdot y}{a}} \]
    6. Step-by-step derivation
      1. associate-/l*82.9%

        \[\leadsto 0.5 \cdot \color{blue}{\frac{x}{\frac{a}{y}}} \]
    7. Simplified82.9%

      \[\leadsto \color{blue}{0.5 \cdot \frac{x}{\frac{a}{y}}} \]

    if -1.9999999999999999e107 < (*.f64 x y) < -2e-8

    1. Initial program 88.9%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. associate-*l*88.9%

        \[\leadsto \frac{x \cdot y - \color{blue}{z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
    3. Simplified88.9%

      \[\leadsto \color{blue}{\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around 0 54.4%

      \[\leadsto \color{blue}{-4.5 \cdot \frac{t \cdot z}{a}} \]
    6. Step-by-step derivation
      1. associate-/l*65.3%

        \[\leadsto -4.5 \cdot \color{blue}{\frac{t}{\frac{a}{z}}} \]
    7. Simplified65.3%

      \[\leadsto \color{blue}{-4.5 \cdot \frac{t}{\frac{a}{z}}} \]
    8. Step-by-step derivation
      1. associate-/r/59.7%

        \[\leadsto -4.5 \cdot \color{blue}{\left(\frac{t}{a} \cdot z\right)} \]
    9. Applied egg-rr59.7%

      \[\leadsto -4.5 \cdot \color{blue}{\left(\frac{t}{a} \cdot z\right)} \]

    if -2e-8 < (*.f64 x y) < -2.00000000000000008e-25

    1. Initial program 100.0%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. associate-*l*100.0%

        \[\leadsto \frac{x \cdot y - \color{blue}{z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
    3. Simplified100.0%

      \[\leadsto \color{blue}{\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}} \]
    4. Add Preprocessing
    5. Step-by-step derivation
      1. div-inv100.0%

        \[\leadsto \color{blue}{\left(x \cdot y - z \cdot \left(9 \cdot t\right)\right) \cdot \frac{1}{a \cdot 2}} \]
      2. fma-neg100.0%

        \[\leadsto \color{blue}{\mathsf{fma}\left(x, y, -z \cdot \left(9 \cdot t\right)\right)} \cdot \frac{1}{a \cdot 2} \]
      3. *-commutative100.0%

        \[\leadsto \mathsf{fma}\left(x, y, -\color{blue}{\left(9 \cdot t\right) \cdot z}\right) \cdot \frac{1}{a \cdot 2} \]
      4. distribute-lft-neg-in100.0%

        \[\leadsto \mathsf{fma}\left(x, y, \color{blue}{\left(-9 \cdot t\right) \cdot z}\right) \cdot \frac{1}{a \cdot 2} \]
      5. distribute-lft-neg-in100.0%

        \[\leadsto \mathsf{fma}\left(x, y, \color{blue}{\left(\left(-9\right) \cdot t\right)} \cdot z\right) \cdot \frac{1}{a \cdot 2} \]
      6. metadata-eval100.0%

        \[\leadsto \mathsf{fma}\left(x, y, \left(\color{blue}{-9} \cdot t\right) \cdot z\right) \cdot \frac{1}{a \cdot 2} \]
      7. *-commutative100.0%

        \[\leadsto \mathsf{fma}\left(x, y, \color{blue}{\left(t \cdot -9\right)} \cdot z\right) \cdot \frac{1}{a \cdot 2} \]
      8. add-sqr-sqrt50.0%

        \[\leadsto \mathsf{fma}\left(x, y, \color{blue}{\left(\sqrt{t \cdot -9} \cdot \sqrt{t \cdot -9}\right)} \cdot z\right) \cdot \frac{1}{a \cdot 2} \]
      9. sqrt-unprod100.0%

        \[\leadsto \mathsf{fma}\left(x, y, \color{blue}{\sqrt{\left(t \cdot -9\right) \cdot \left(t \cdot -9\right)}} \cdot z\right) \cdot \frac{1}{a \cdot 2} \]
      10. swap-sqr100.0%

        \[\leadsto \mathsf{fma}\left(x, y, \sqrt{\color{blue}{\left(t \cdot t\right) \cdot \left(-9 \cdot -9\right)}} \cdot z\right) \cdot \frac{1}{a \cdot 2} \]
      11. metadata-eval100.0%

        \[\leadsto \mathsf{fma}\left(x, y, \sqrt{\left(t \cdot t\right) \cdot \color{blue}{81}} \cdot z\right) \cdot \frac{1}{a \cdot 2} \]
      12. metadata-eval100.0%

        \[\leadsto \mathsf{fma}\left(x, y, \sqrt{\left(t \cdot t\right) \cdot \color{blue}{\left(9 \cdot 9\right)}} \cdot z\right) \cdot \frac{1}{a \cdot 2} \]
      13. swap-sqr100.0%

        \[\leadsto \mathsf{fma}\left(x, y, \sqrt{\color{blue}{\left(t \cdot 9\right) \cdot \left(t \cdot 9\right)}} \cdot z\right) \cdot \frac{1}{a \cdot 2} \]
      14. *-commutative100.0%

        \[\leadsto \mathsf{fma}\left(x, y, \sqrt{\color{blue}{\left(9 \cdot t\right)} \cdot \left(t \cdot 9\right)} \cdot z\right) \cdot \frac{1}{a \cdot 2} \]
      15. *-commutative100.0%

        \[\leadsto \mathsf{fma}\left(x, y, \sqrt{\left(9 \cdot t\right) \cdot \color{blue}{\left(9 \cdot t\right)}} \cdot z\right) \cdot \frac{1}{a \cdot 2} \]
      16. sqrt-unprod50.0%

        \[\leadsto \mathsf{fma}\left(x, y, \color{blue}{\left(\sqrt{9 \cdot t} \cdot \sqrt{9 \cdot t}\right)} \cdot z\right) \cdot \frac{1}{a \cdot 2} \]
      17. add-sqr-sqrt91.6%

        \[\leadsto \mathsf{fma}\left(x, y, \color{blue}{\left(9 \cdot t\right)} \cdot z\right) \cdot \frac{1}{a \cdot 2} \]
      18. associate-*l*91.6%

        \[\leadsto \mathsf{fma}\left(x, y, \color{blue}{9 \cdot \left(t \cdot z\right)}\right) \cdot \frac{1}{a \cdot 2} \]
      19. *-commutative91.6%

        \[\leadsto \mathsf{fma}\left(x, y, 9 \cdot \color{blue}{\left(z \cdot t\right)}\right) \cdot \frac{1}{a \cdot 2} \]
      20. *-commutative91.6%

        \[\leadsto \mathsf{fma}\left(x, y, 9 \cdot \left(z \cdot t\right)\right) \cdot \frac{1}{\color{blue}{2 \cdot a}} \]
      21. associate-/r*91.6%

        \[\leadsto \mathsf{fma}\left(x, y, 9 \cdot \left(z \cdot t\right)\right) \cdot \color{blue}{\frac{\frac{1}{2}}{a}} \]
    6. Applied egg-rr91.6%

      \[\leadsto \color{blue}{\mathsf{fma}\left(x, y, 9 \cdot \left(z \cdot t\right)\right) \cdot \frac{0.5}{a}} \]
    7. Taylor expanded in x around inf 92.0%

      \[\leadsto \color{blue}{\left(x \cdot y\right)} \cdot \frac{0.5}{a} \]

    if -2.00000000000000008e-25 < (*.f64 x y) < 4e21

    1. Initial program 94.5%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. associate-*l*94.5%

        \[\leadsto \frac{x \cdot y - \color{blue}{z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
    3. Simplified94.5%

      \[\leadsto \color{blue}{\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around 0 77.5%

      \[\leadsto \color{blue}{-4.5 \cdot \frac{t \cdot z}{a}} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification78.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \cdot y \leq -2 \cdot 10^{+107}:\\ \;\;\;\;0.5 \cdot \frac{x}{\frac{a}{y}}\\ \mathbf{elif}\;x \cdot y \leq -2 \cdot 10^{-8}:\\ \;\;\;\;-4.5 \cdot \left(z \cdot \frac{t}{a}\right)\\ \mathbf{elif}\;x \cdot y \leq -2 \cdot 10^{-25}:\\ \;\;\;\;\left(x \cdot y\right) \cdot \frac{0.5}{a}\\ \mathbf{elif}\;x \cdot y \leq 4 \cdot 10^{+21}:\\ \;\;\;\;-4.5 \cdot \frac{z \cdot t}{a}\\ \mathbf{else}:\\ \;\;\;\;0.5 \cdot \frac{x}{\frac{a}{y}}\\ \end{array} \]
  5. Add Preprocessing

Alternative 8: 94.8% accurate, 0.6× speedup?

\[\begin{array}{l} [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\\\ [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\ \\ \begin{array}{l} \mathbf{if}\;x \cdot y \leq -2 \cdot 10^{+304} \lor \neg \left(x \cdot y \leq 10^{+202}\right):\\ \;\;\;\;0.5 \cdot \frac{x}{\frac{a}{y}}\\ \mathbf{else}:\\ \;\;\;\;\frac{0.5}{\frac{a}{x \cdot y - 9 \cdot \left(z \cdot t\right)}}\\ \end{array} \end{array} \]
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
(FPCore (x y z t a)
 :precision binary64
 (if (or (<= (* x y) -2e+304) (not (<= (* x y) 1e+202)))
   (* 0.5 (/ x (/ a y)))
   (/ 0.5 (/ a (- (* x y) (* 9.0 (* z t)))))))
assert(x < y && y < z && z < t && t < a);
assert(x < y && y < z && z < t && t < a);
double code(double x, double y, double z, double t, double a) {
	double tmp;
	if (((x * y) <= -2e+304) || !((x * y) <= 1e+202)) {
		tmp = 0.5 * (x / (a / y));
	} else {
		tmp = 0.5 / (a / ((x * y) - (9.0 * (z * t))));
	}
	return tmp;
}
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
real(8) function code(x, y, z, t, a)
    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) :: tmp
    if (((x * y) <= (-2d+304)) .or. (.not. ((x * y) <= 1d+202))) then
        tmp = 0.5d0 * (x / (a / y))
    else
        tmp = 0.5d0 / (a / ((x * y) - (9.0d0 * (z * t))))
    end if
    code = tmp
end function
assert x < y && y < z && z < t && t < a;
assert x < y && y < z && z < t && t < a;
public static double code(double x, double y, double z, double t, double a) {
	double tmp;
	if (((x * y) <= -2e+304) || !((x * y) <= 1e+202)) {
		tmp = 0.5 * (x / (a / y));
	} else {
		tmp = 0.5 / (a / ((x * y) - (9.0 * (z * t))));
	}
	return tmp;
}
[x, y, z, t, a] = sort([x, y, z, t, a])
[x, y, z, t, a] = sort([x, y, z, t, a])
def code(x, y, z, t, a):
	tmp = 0
	if ((x * y) <= -2e+304) or not ((x * y) <= 1e+202):
		tmp = 0.5 * (x / (a / y))
	else:
		tmp = 0.5 / (a / ((x * y) - (9.0 * (z * t))))
	return tmp
x, y, z, t, a = sort([x, y, z, t, a])
x, y, z, t, a = sort([x, y, z, t, a])
function code(x, y, z, t, a)
	tmp = 0.0
	if ((Float64(x * y) <= -2e+304) || !(Float64(x * y) <= 1e+202))
		tmp = Float64(0.5 * Float64(x / Float64(a / y)));
	else
		tmp = Float64(0.5 / Float64(a / Float64(Float64(x * y) - Float64(9.0 * Float64(z * t)))));
	end
	return tmp
end
x, y, z, t, a = num2cell(sort([x, y, z, t, a])){:}
x, y, z, t, a = num2cell(sort([x, y, z, t, a])){:}
function tmp_2 = code(x, y, z, t, a)
	tmp = 0.0;
	if (((x * y) <= -2e+304) || ~(((x * y) <= 1e+202)))
		tmp = 0.5 * (x / (a / y));
	else
		tmp = 0.5 / (a / ((x * y) - (9.0 * (z * t))));
	end
	tmp_2 = tmp;
end
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_, a_] := If[Or[LessEqual[N[(x * y), $MachinePrecision], -2e+304], N[Not[LessEqual[N[(x * y), $MachinePrecision], 1e+202]], $MachinePrecision]], N[(0.5 * N[(x / N[(a / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(0.5 / N[(a / N[(N[(x * y), $MachinePrecision] - N[(9.0 * N[(z * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
[x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\\\
[x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\
\\
\begin{array}{l}
\mathbf{if}\;x \cdot y \leq -2 \cdot 10^{+304} \lor \neg \left(x \cdot y \leq 10^{+202}\right):\\
\;\;\;\;0.5 \cdot \frac{x}{\frac{a}{y}}\\

\mathbf{else}:\\
\;\;\;\;\frac{0.5}{\frac{a}{x \cdot y - 9 \cdot \left(z \cdot t\right)}}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (*.f64 x y) < -1.9999999999999999e304 or 9.999999999999999e201 < (*.f64 x y)

    1. Initial program 58.4%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. associate-*l*56.3%

        \[\leadsto \frac{x \cdot y - \color{blue}{z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
    3. Simplified56.3%

      \[\leadsto \color{blue}{\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 67.5%

      \[\leadsto \color{blue}{0.5 \cdot \frac{x \cdot y}{a}} \]
    6. Step-by-step derivation
      1. associate-/l*93.0%

        \[\leadsto 0.5 \cdot \color{blue}{\frac{x}{\frac{a}{y}}} \]
    7. Simplified93.0%

      \[\leadsto \color{blue}{0.5 \cdot \frac{x}{\frac{a}{y}}} \]

    if -1.9999999999999999e304 < (*.f64 x y) < 9.999999999999999e201

    1. Initial program 94.5%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. associate-*l*94.5%

        \[\leadsto \frac{x \cdot y - \color{blue}{z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
    3. Simplified94.5%

      \[\leadsto \color{blue}{\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}} \]
    4. Add Preprocessing
    5. Taylor expanded in a around 0 94.6%

      \[\leadsto \color{blue}{0.5 \cdot \frac{x \cdot y - 9 \cdot \left(t \cdot z\right)}{a}} \]
    6. Step-by-step derivation
      1. associate-*r/94.5%

        \[\leadsto \color{blue}{\frac{0.5 \cdot \left(x \cdot y - 9 \cdot \left(t \cdot z\right)\right)}{a}} \]
      2. cancel-sign-sub-inv94.5%

        \[\leadsto \frac{0.5 \cdot \color{blue}{\left(x \cdot y + \left(-9\right) \cdot \left(t \cdot z\right)\right)}}{a} \]
      3. metadata-eval94.5%

        \[\leadsto \frac{0.5 \cdot \left(x \cdot y + \color{blue}{-9} \cdot \left(t \cdot z\right)\right)}{a} \]
      4. +-commutative94.5%

        \[\leadsto \frac{0.5 \cdot \color{blue}{\left(-9 \cdot \left(t \cdot z\right) + x \cdot y\right)}}{a} \]
      5. associate-/l*94.4%

        \[\leadsto \color{blue}{\frac{0.5}{\frac{a}{-9 \cdot \left(t \cdot z\right) + x \cdot y}}} \]
      6. +-commutative94.4%

        \[\leadsto \frac{0.5}{\frac{a}{\color{blue}{x \cdot y + -9 \cdot \left(t \cdot z\right)}}} \]
      7. metadata-eval94.4%

        \[\leadsto \frac{0.5}{\frac{a}{x \cdot y + \color{blue}{\left(-9\right)} \cdot \left(t \cdot z\right)}} \]
      8. cancel-sign-sub-inv94.4%

        \[\leadsto \frac{0.5}{\frac{a}{\color{blue}{x \cdot y - 9 \cdot \left(t \cdot z\right)}}} \]
      9. fma-neg94.4%

        \[\leadsto \frac{0.5}{\frac{a}{\color{blue}{\mathsf{fma}\left(x, y, -9 \cdot \left(t \cdot z\right)\right)}}} \]
      10. *-commutative94.4%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, -9 \cdot \color{blue}{\left(z \cdot t\right)}\right)}} \]
      11. distribute-lft-neg-in94.4%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{\left(-9\right) \cdot \left(z \cdot t\right)}\right)}} \]
      12. metadata-eval94.4%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{-9} \cdot \left(z \cdot t\right)\right)}} \]
      13. *-commutative94.4%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{\left(z \cdot t\right) \cdot -9}\right)}} \]
      14. associate-*l*94.4%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{z \cdot \left(t \cdot -9\right)}\right)}} \]
    7. Simplified94.4%

      \[\leadsto \color{blue}{\frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, z \cdot \left(t \cdot -9\right)\right)}}} \]
    8. Step-by-step derivation
      1. *-commutative94.4%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, z \cdot \color{blue}{\left(-9 \cdot t\right)}\right)}} \]
      2. metadata-eval94.4%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, z \cdot \left(\color{blue}{\left(-9\right)} \cdot t\right)\right)}} \]
      3. distribute-lft-neg-in94.4%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, z \cdot \color{blue}{\left(-9 \cdot t\right)}\right)}} \]
      4. distribute-rgt-neg-in94.4%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{-z \cdot \left(9 \cdot t\right)}\right)}} \]
      5. fma-neg94.4%

        \[\leadsto \frac{0.5}{\frac{a}{\color{blue}{x \cdot y - z \cdot \left(9 \cdot t\right)}}} \]
      6. associate-*r*94.4%

        \[\leadsto \frac{0.5}{\frac{a}{x \cdot y - \color{blue}{\left(z \cdot 9\right) \cdot t}}} \]
      7. *-commutative94.4%

        \[\leadsto \frac{0.5}{\frac{a}{x \cdot y - \color{blue}{\left(9 \cdot z\right)} \cdot t}} \]
      8. associate-*l*94.4%

        \[\leadsto \frac{0.5}{\frac{a}{x \cdot y - \color{blue}{9 \cdot \left(z \cdot t\right)}}} \]
    9. Applied egg-rr94.4%

      \[\leadsto \frac{0.5}{\frac{a}{\color{blue}{x \cdot y - 9 \cdot \left(z \cdot t\right)}}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification94.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \cdot y \leq -2 \cdot 10^{+304} \lor \neg \left(x \cdot y \leq 10^{+202}\right):\\ \;\;\;\;0.5 \cdot \frac{x}{\frac{a}{y}}\\ \mathbf{else}:\\ \;\;\;\;\frac{0.5}{\frac{a}{x \cdot y - 9 \cdot \left(z \cdot t\right)}}\\ \end{array} \]
  5. Add Preprocessing

Alternative 9: 95.0% accurate, 0.6× speedup?

\[\begin{array}{l} [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\\\ [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\ \\ \begin{array}{l} \mathbf{if}\;x \cdot y \leq -2 \cdot 10^{+304} \lor \neg \left(x \cdot y \leq 10^{+202}\right):\\ \;\;\;\;0.5 \cdot \frac{x}{\frac{a}{y}}\\ \mathbf{else}:\\ \;\;\;\;\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}\\ \end{array} \end{array} \]
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
(FPCore (x y z t a)
 :precision binary64
 (if (or (<= (* x y) -2e+304) (not (<= (* x y) 1e+202)))
   (* 0.5 (/ x (/ a y)))
   (/ (- (* x y) (* z (* 9.0 t))) (* a 2.0))))
assert(x < y && y < z && z < t && t < a);
assert(x < y && y < z && z < t && t < a);
double code(double x, double y, double z, double t, double a) {
	double tmp;
	if (((x * y) <= -2e+304) || !((x * y) <= 1e+202)) {
		tmp = 0.5 * (x / (a / y));
	} else {
		tmp = ((x * y) - (z * (9.0 * t))) / (a * 2.0);
	}
	return tmp;
}
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
real(8) function code(x, y, z, t, a)
    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) :: tmp
    if (((x * y) <= (-2d+304)) .or. (.not. ((x * y) <= 1d+202))) then
        tmp = 0.5d0 * (x / (a / y))
    else
        tmp = ((x * y) - (z * (9.0d0 * t))) / (a * 2.0d0)
    end if
    code = tmp
end function
assert x < y && y < z && z < t && t < a;
assert x < y && y < z && z < t && t < a;
public static double code(double x, double y, double z, double t, double a) {
	double tmp;
	if (((x * y) <= -2e+304) || !((x * y) <= 1e+202)) {
		tmp = 0.5 * (x / (a / y));
	} else {
		tmp = ((x * y) - (z * (9.0 * t))) / (a * 2.0);
	}
	return tmp;
}
[x, y, z, t, a] = sort([x, y, z, t, a])
[x, y, z, t, a] = sort([x, y, z, t, a])
def code(x, y, z, t, a):
	tmp = 0
	if ((x * y) <= -2e+304) or not ((x * y) <= 1e+202):
		tmp = 0.5 * (x / (a / y))
	else:
		tmp = ((x * y) - (z * (9.0 * t))) / (a * 2.0)
	return tmp
x, y, z, t, a = sort([x, y, z, t, a])
x, y, z, t, a = sort([x, y, z, t, a])
function code(x, y, z, t, a)
	tmp = 0.0
	if ((Float64(x * y) <= -2e+304) || !(Float64(x * y) <= 1e+202))
		tmp = Float64(0.5 * Float64(x / Float64(a / y)));
	else
		tmp = Float64(Float64(Float64(x * y) - Float64(z * Float64(9.0 * t))) / Float64(a * 2.0));
	end
	return tmp
end
x, y, z, t, a = num2cell(sort([x, y, z, t, a])){:}
x, y, z, t, a = num2cell(sort([x, y, z, t, a])){:}
function tmp_2 = code(x, y, z, t, a)
	tmp = 0.0;
	if (((x * y) <= -2e+304) || ~(((x * y) <= 1e+202)))
		tmp = 0.5 * (x / (a / y));
	else
		tmp = ((x * y) - (z * (9.0 * t))) / (a * 2.0);
	end
	tmp_2 = tmp;
end
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_, a_] := If[Or[LessEqual[N[(x * y), $MachinePrecision], -2e+304], N[Not[LessEqual[N[(x * y), $MachinePrecision], 1e+202]], $MachinePrecision]], N[(0.5 * N[(x / N[(a / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(N[(x * y), $MachinePrecision] - N[(z * N[(9.0 * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(a * 2.0), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
[x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\\\
[x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\
\\
\begin{array}{l}
\mathbf{if}\;x \cdot y \leq -2 \cdot 10^{+304} \lor \neg \left(x \cdot y \leq 10^{+202}\right):\\
\;\;\;\;0.5 \cdot \frac{x}{\frac{a}{y}}\\

\mathbf{else}:\\
\;\;\;\;\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (*.f64 x y) < -1.9999999999999999e304 or 9.999999999999999e201 < (*.f64 x y)

    1. Initial program 58.4%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. associate-*l*56.3%

        \[\leadsto \frac{x \cdot y - \color{blue}{z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
    3. Simplified56.3%

      \[\leadsto \color{blue}{\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 67.5%

      \[\leadsto \color{blue}{0.5 \cdot \frac{x \cdot y}{a}} \]
    6. Step-by-step derivation
      1. associate-/l*93.0%

        \[\leadsto 0.5 \cdot \color{blue}{\frac{x}{\frac{a}{y}}} \]
    7. Simplified93.0%

      \[\leadsto \color{blue}{0.5 \cdot \frac{x}{\frac{a}{y}}} \]

    if -1.9999999999999999e304 < (*.f64 x y) < 9.999999999999999e201

    1. Initial program 94.5%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. associate-*l*94.5%

        \[\leadsto \frac{x \cdot y - \color{blue}{z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
    3. Simplified94.5%

      \[\leadsto \color{blue}{\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}} \]
    4. Add Preprocessing
  3. Recombined 2 regimes into one program.
  4. Final simplification94.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \cdot y \leq -2 \cdot 10^{+304} \lor \neg \left(x \cdot y \leq 10^{+202}\right):\\ \;\;\;\;0.5 \cdot \frac{x}{\frac{a}{y}}\\ \mathbf{else}:\\ \;\;\;\;\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}\\ \end{array} \]
  5. Add Preprocessing

Alternative 10: 95.0% accurate, 0.6× speedup?

\[\begin{array}{l} [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\\\ [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\ \\ \begin{array}{l} \mathbf{if}\;x \cdot y \leq -2 \cdot 10^{+304} \lor \neg \left(x \cdot y \leq 10^{+202}\right):\\ \;\;\;\;0.5 \cdot \frac{x}{\frac{a}{y}}\\ \mathbf{else}:\\ \;\;\;\;\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2}\\ \end{array} \end{array} \]
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
(FPCore (x y z t a)
 :precision binary64
 (if (or (<= (* x y) -2e+304) (not (<= (* x y) 1e+202)))
   (* 0.5 (/ x (/ a y)))
   (/ (- (* x y) (* (* z 9.0) t)) (* a 2.0))))
assert(x < y && y < z && z < t && t < a);
assert(x < y && y < z && z < t && t < a);
double code(double x, double y, double z, double t, double a) {
	double tmp;
	if (((x * y) <= -2e+304) || !((x * y) <= 1e+202)) {
		tmp = 0.5 * (x / (a / y));
	} else {
		tmp = ((x * y) - ((z * 9.0) * t)) / (a * 2.0);
	}
	return tmp;
}
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
real(8) function code(x, y, z, t, a)
    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) :: tmp
    if (((x * y) <= (-2d+304)) .or. (.not. ((x * y) <= 1d+202))) then
        tmp = 0.5d0 * (x / (a / y))
    else
        tmp = ((x * y) - ((z * 9.0d0) * t)) / (a * 2.0d0)
    end if
    code = tmp
end function
assert x < y && y < z && z < t && t < a;
assert x < y && y < z && z < t && t < a;
public static double code(double x, double y, double z, double t, double a) {
	double tmp;
	if (((x * y) <= -2e+304) || !((x * y) <= 1e+202)) {
		tmp = 0.5 * (x / (a / y));
	} else {
		tmp = ((x * y) - ((z * 9.0) * t)) / (a * 2.0);
	}
	return tmp;
}
[x, y, z, t, a] = sort([x, y, z, t, a])
[x, y, z, t, a] = sort([x, y, z, t, a])
def code(x, y, z, t, a):
	tmp = 0
	if ((x * y) <= -2e+304) or not ((x * y) <= 1e+202):
		tmp = 0.5 * (x / (a / y))
	else:
		tmp = ((x * y) - ((z * 9.0) * t)) / (a * 2.0)
	return tmp
x, y, z, t, a = sort([x, y, z, t, a])
x, y, z, t, a = sort([x, y, z, t, a])
function code(x, y, z, t, a)
	tmp = 0.0
	if ((Float64(x * y) <= -2e+304) || !(Float64(x * y) <= 1e+202))
		tmp = Float64(0.5 * Float64(x / Float64(a / y)));
	else
		tmp = Float64(Float64(Float64(x * y) - Float64(Float64(z * 9.0) * t)) / Float64(a * 2.0));
	end
	return tmp
end
x, y, z, t, a = num2cell(sort([x, y, z, t, a])){:}
x, y, z, t, a = num2cell(sort([x, y, z, t, a])){:}
function tmp_2 = code(x, y, z, t, a)
	tmp = 0.0;
	if (((x * y) <= -2e+304) || ~(((x * y) <= 1e+202)))
		tmp = 0.5 * (x / (a / y));
	else
		tmp = ((x * y) - ((z * 9.0) * t)) / (a * 2.0);
	end
	tmp_2 = tmp;
end
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_, a_] := If[Or[LessEqual[N[(x * y), $MachinePrecision], -2e+304], N[Not[LessEqual[N[(x * y), $MachinePrecision], 1e+202]], $MachinePrecision]], N[(0.5 * N[(x / N[(a / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(N[(x * y), $MachinePrecision] - N[(N[(z * 9.0), $MachinePrecision] * t), $MachinePrecision]), $MachinePrecision] / N[(a * 2.0), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
[x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\\\
[x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\
\\
\begin{array}{l}
\mathbf{if}\;x \cdot y \leq -2 \cdot 10^{+304} \lor \neg \left(x \cdot y \leq 10^{+202}\right):\\
\;\;\;\;0.5 \cdot \frac{x}{\frac{a}{y}}\\

\mathbf{else}:\\
\;\;\;\;\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (*.f64 x y) < -1.9999999999999999e304 or 9.999999999999999e201 < (*.f64 x y)

    1. Initial program 58.4%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. associate-*l*56.3%

        \[\leadsto \frac{x \cdot y - \color{blue}{z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
    3. Simplified56.3%

      \[\leadsto \color{blue}{\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 67.5%

      \[\leadsto \color{blue}{0.5 \cdot \frac{x \cdot y}{a}} \]
    6. Step-by-step derivation
      1. associate-/l*93.0%

        \[\leadsto 0.5 \cdot \color{blue}{\frac{x}{\frac{a}{y}}} \]
    7. Simplified93.0%

      \[\leadsto \color{blue}{0.5 \cdot \frac{x}{\frac{a}{y}}} \]

    if -1.9999999999999999e304 < (*.f64 x y) < 9.999999999999999e201

    1. Initial program 94.5%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Add Preprocessing
  3. Recombined 2 regimes into one program.
  4. Final simplification94.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \cdot y \leq -2 \cdot 10^{+304} \lor \neg \left(x \cdot y \leq 10^{+202}\right):\\ \;\;\;\;0.5 \cdot \frac{x}{\frac{a}{y}}\\ \mathbf{else}:\\ \;\;\;\;\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2}\\ \end{array} \]
  5. Add Preprocessing

Alternative 11: 66.1% accurate, 1.2× speedup?

\[\begin{array}{l} [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\\\ [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\ \\ \begin{array}{l} \mathbf{if}\;x \leq -1.2 \cdot 10^{+99} \lor \neg \left(x \leq 2 \cdot 10^{-6}\right):\\ \;\;\;\;0.5 \cdot \left(x \cdot \frac{y}{a}\right)\\ \mathbf{else}:\\ \;\;\;\;-4.5 \cdot \left(z \cdot \frac{t}{a}\right)\\ \end{array} \end{array} \]
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
(FPCore (x y z t a)
 :precision binary64
 (if (or (<= x -1.2e+99) (not (<= x 2e-6)))
   (* 0.5 (* x (/ y a)))
   (* -4.5 (* z (/ t a)))))
assert(x < y && y < z && z < t && t < a);
assert(x < y && y < z && z < t && t < a);
double code(double x, double y, double z, double t, double a) {
	double tmp;
	if ((x <= -1.2e+99) || !(x <= 2e-6)) {
		tmp = 0.5 * (x * (y / a));
	} else {
		tmp = -4.5 * (z * (t / a));
	}
	return tmp;
}
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
real(8) function code(x, y, z, t, a)
    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) :: tmp
    if ((x <= (-1.2d+99)) .or. (.not. (x <= 2d-6))) then
        tmp = 0.5d0 * (x * (y / a))
    else
        tmp = (-4.5d0) * (z * (t / a))
    end if
    code = tmp
end function
assert x < y && y < z && z < t && t < a;
assert x < y && y < z && z < t && t < a;
public static double code(double x, double y, double z, double t, double a) {
	double tmp;
	if ((x <= -1.2e+99) || !(x <= 2e-6)) {
		tmp = 0.5 * (x * (y / a));
	} else {
		tmp = -4.5 * (z * (t / a));
	}
	return tmp;
}
[x, y, z, t, a] = sort([x, y, z, t, a])
[x, y, z, t, a] = sort([x, y, z, t, a])
def code(x, y, z, t, a):
	tmp = 0
	if (x <= -1.2e+99) or not (x <= 2e-6):
		tmp = 0.5 * (x * (y / a))
	else:
		tmp = -4.5 * (z * (t / a))
	return tmp
x, y, z, t, a = sort([x, y, z, t, a])
x, y, z, t, a = sort([x, y, z, t, a])
function code(x, y, z, t, a)
	tmp = 0.0
	if ((x <= -1.2e+99) || !(x <= 2e-6))
		tmp = Float64(0.5 * Float64(x * Float64(y / a)));
	else
		tmp = Float64(-4.5 * Float64(z * Float64(t / a)));
	end
	return tmp
end
x, y, z, t, a = num2cell(sort([x, y, z, t, a])){:}
x, y, z, t, a = num2cell(sort([x, y, z, t, a])){:}
function tmp_2 = code(x, y, z, t, a)
	tmp = 0.0;
	if ((x <= -1.2e+99) || ~((x <= 2e-6)))
		tmp = 0.5 * (x * (y / a));
	else
		tmp = -4.5 * (z * (t / a));
	end
	tmp_2 = tmp;
end
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_, a_] := If[Or[LessEqual[x, -1.2e+99], N[Not[LessEqual[x, 2e-6]], $MachinePrecision]], N[(0.5 * N[(x * N[(y / a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(-4.5 * N[(z * N[(t / a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
[x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\\\
[x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\
\\
\begin{array}{l}
\mathbf{if}\;x \leq -1.2 \cdot 10^{+99} \lor \neg \left(x \leq 2 \cdot 10^{-6}\right):\\
\;\;\;\;0.5 \cdot \left(x \cdot \frac{y}{a}\right)\\

\mathbf{else}:\\
\;\;\;\;-4.5 \cdot \left(z \cdot \frac{t}{a}\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < -1.2000000000000001e99 or 1.99999999999999991e-6 < x

    1. Initial program 81.9%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. associate-*l*81.1%

        \[\leadsto \frac{x \cdot y - \color{blue}{z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
    3. Simplified81.1%

      \[\leadsto \color{blue}{\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 60.8%

      \[\leadsto \color{blue}{0.5 \cdot \frac{x \cdot y}{a}} \]
    6. Step-by-step derivation
      1. associate-*r/66.3%

        \[\leadsto 0.5 \cdot \color{blue}{\left(x \cdot \frac{y}{a}\right)} \]
    7. Simplified66.3%

      \[\leadsto \color{blue}{0.5 \cdot \left(x \cdot \frac{y}{a}\right)} \]

    if -1.2000000000000001e99 < x < 1.99999999999999991e-6

    1. Initial program 94.3%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. associate-*l*94.3%

        \[\leadsto \frac{x \cdot y - \color{blue}{z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
    3. Simplified94.3%

      \[\leadsto \color{blue}{\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around 0 72.7%

      \[\leadsto \color{blue}{-4.5 \cdot \frac{t \cdot z}{a}} \]
    6. Step-by-step derivation
      1. associate-/l*72.0%

        \[\leadsto -4.5 \cdot \color{blue}{\frac{t}{\frac{a}{z}}} \]
    7. Simplified72.0%

      \[\leadsto \color{blue}{-4.5 \cdot \frac{t}{\frac{a}{z}}} \]
    8. Step-by-step derivation
      1. associate-/r/71.3%

        \[\leadsto -4.5 \cdot \color{blue}{\left(\frac{t}{a} \cdot z\right)} \]
    9. Applied egg-rr71.3%

      \[\leadsto -4.5 \cdot \color{blue}{\left(\frac{t}{a} \cdot z\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification68.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -1.2 \cdot 10^{+99} \lor \neg \left(x \leq 2 \cdot 10^{-6}\right):\\ \;\;\;\;0.5 \cdot \left(x \cdot \frac{y}{a}\right)\\ \mathbf{else}:\\ \;\;\;\;-4.5 \cdot \left(z \cdot \frac{t}{a}\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 12: 66.1% accurate, 1.2× speedup?

\[\begin{array}{l} [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\\\ [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\ \\ \begin{array}{l} \mathbf{if}\;x \leq -1.02 \cdot 10^{+99}:\\ \;\;\;\;0.5 \cdot \left(x \cdot \frac{y}{a}\right)\\ \mathbf{elif}\;x \leq 1.75 \cdot 10^{-6}:\\ \;\;\;\;-4.5 \cdot \left(z \cdot \frac{t}{a}\right)\\ \mathbf{else}:\\ \;\;\;\;0.5 \cdot \frac{x}{\frac{a}{y}}\\ \end{array} \end{array} \]
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
(FPCore (x y z t a)
 :precision binary64
 (if (<= x -1.02e+99)
   (* 0.5 (* x (/ y a)))
   (if (<= x 1.75e-6) (* -4.5 (* z (/ t a))) (* 0.5 (/ x (/ a y))))))
assert(x < y && y < z && z < t && t < a);
assert(x < y && y < z && z < t && t < a);
double code(double x, double y, double z, double t, double a) {
	double tmp;
	if (x <= -1.02e+99) {
		tmp = 0.5 * (x * (y / a));
	} else if (x <= 1.75e-6) {
		tmp = -4.5 * (z * (t / a));
	} else {
		tmp = 0.5 * (x / (a / y));
	}
	return tmp;
}
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
real(8) function code(x, y, z, t, a)
    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) :: tmp
    if (x <= (-1.02d+99)) then
        tmp = 0.5d0 * (x * (y / a))
    else if (x <= 1.75d-6) then
        tmp = (-4.5d0) * (z * (t / a))
    else
        tmp = 0.5d0 * (x / (a / y))
    end if
    code = tmp
end function
assert x < y && y < z && z < t && t < a;
assert x < y && y < z && z < t && t < a;
public static double code(double x, double y, double z, double t, double a) {
	double tmp;
	if (x <= -1.02e+99) {
		tmp = 0.5 * (x * (y / a));
	} else if (x <= 1.75e-6) {
		tmp = -4.5 * (z * (t / a));
	} else {
		tmp = 0.5 * (x / (a / y));
	}
	return tmp;
}
[x, y, z, t, a] = sort([x, y, z, t, a])
[x, y, z, t, a] = sort([x, y, z, t, a])
def code(x, y, z, t, a):
	tmp = 0
	if x <= -1.02e+99:
		tmp = 0.5 * (x * (y / a))
	elif x <= 1.75e-6:
		tmp = -4.5 * (z * (t / a))
	else:
		tmp = 0.5 * (x / (a / y))
	return tmp
x, y, z, t, a = sort([x, y, z, t, a])
x, y, z, t, a = sort([x, y, z, t, a])
function code(x, y, z, t, a)
	tmp = 0.0
	if (x <= -1.02e+99)
		tmp = Float64(0.5 * Float64(x * Float64(y / a)));
	elseif (x <= 1.75e-6)
		tmp = Float64(-4.5 * Float64(z * Float64(t / a)));
	else
		tmp = Float64(0.5 * Float64(x / Float64(a / y)));
	end
	return tmp
end
x, y, z, t, a = num2cell(sort([x, y, z, t, a])){:}
x, y, z, t, a = num2cell(sort([x, y, z, t, a])){:}
function tmp_2 = code(x, y, z, t, a)
	tmp = 0.0;
	if (x <= -1.02e+99)
		tmp = 0.5 * (x * (y / a));
	elseif (x <= 1.75e-6)
		tmp = -4.5 * (z * (t / a));
	else
		tmp = 0.5 * (x / (a / y));
	end
	tmp_2 = tmp;
end
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_, a_] := If[LessEqual[x, -1.02e+99], N[(0.5 * N[(x * N[(y / a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 1.75e-6], N[(-4.5 * N[(z * N[(t / a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(0.5 * N[(x / N[(a / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
[x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\\\
[x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\
\\
\begin{array}{l}
\mathbf{if}\;x \leq -1.02 \cdot 10^{+99}:\\
\;\;\;\;0.5 \cdot \left(x \cdot \frac{y}{a}\right)\\

\mathbf{elif}\;x \leq 1.75 \cdot 10^{-6}:\\
\;\;\;\;-4.5 \cdot \left(z \cdot \frac{t}{a}\right)\\

\mathbf{else}:\\
\;\;\;\;0.5 \cdot \frac{x}{\frac{a}{y}}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if x < -1.01999999999999998e99

    1. Initial program 80.8%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. associate-*l*80.8%

        \[\leadsto \frac{x \cdot y - \color{blue}{z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
    3. Simplified80.8%

      \[\leadsto \color{blue}{\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 63.4%

      \[\leadsto \color{blue}{0.5 \cdot \frac{x \cdot y}{a}} \]
    6. Step-by-step derivation
      1. associate-*r/69.9%

        \[\leadsto 0.5 \cdot \color{blue}{\left(x \cdot \frac{y}{a}\right)} \]
    7. Simplified69.9%

      \[\leadsto \color{blue}{0.5 \cdot \left(x \cdot \frac{y}{a}\right)} \]

    if -1.01999999999999998e99 < x < 1.74999999999999997e-6

    1. Initial program 94.3%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. associate-*l*94.3%

        \[\leadsto \frac{x \cdot y - \color{blue}{z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
    3. Simplified94.3%

      \[\leadsto \color{blue}{\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around 0 72.7%

      \[\leadsto \color{blue}{-4.5 \cdot \frac{t \cdot z}{a}} \]
    6. Step-by-step derivation
      1. associate-/l*72.0%

        \[\leadsto -4.5 \cdot \color{blue}{\frac{t}{\frac{a}{z}}} \]
    7. Simplified72.0%

      \[\leadsto \color{blue}{-4.5 \cdot \frac{t}{\frac{a}{z}}} \]
    8. Step-by-step derivation
      1. associate-/r/71.3%

        \[\leadsto -4.5 \cdot \color{blue}{\left(\frac{t}{a} \cdot z\right)} \]
    9. Applied egg-rr71.3%

      \[\leadsto -4.5 \cdot \color{blue}{\left(\frac{t}{a} \cdot z\right)} \]

    if 1.74999999999999997e-6 < x

    1. Initial program 82.7%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. associate-*l*81.5%

        \[\leadsto \frac{x \cdot y - \color{blue}{z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
    3. Simplified81.5%

      \[\leadsto \color{blue}{\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 58.7%

      \[\leadsto \color{blue}{0.5 \cdot \frac{x \cdot y}{a}} \]
    6. Step-by-step derivation
      1. associate-/l*61.5%

        \[\leadsto 0.5 \cdot \color{blue}{\frac{x}{\frac{a}{y}}} \]
    7. Simplified61.5%

      \[\leadsto \color{blue}{0.5 \cdot \frac{x}{\frac{a}{y}}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification68.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -1.02 \cdot 10^{+99}:\\ \;\;\;\;0.5 \cdot \left(x \cdot \frac{y}{a}\right)\\ \mathbf{elif}\;x \leq 1.75 \cdot 10^{-6}:\\ \;\;\;\;-4.5 \cdot \left(z \cdot \frac{t}{a}\right)\\ \mathbf{else}:\\ \;\;\;\;0.5 \cdot \frac{x}{\frac{a}{y}}\\ \end{array} \]
  5. Add Preprocessing

Alternative 13: 51.7% accurate, 1.4× speedup?

\[\begin{array}{l} [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\\\ [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\ \\ \begin{array}{l} \mathbf{if}\;z \leq -3 \cdot 10^{+167}:\\ \;\;\;\;-4.5 \cdot \frac{t}{\frac{a}{z}}\\ \mathbf{else}:\\ \;\;\;\;-4.5 \cdot \frac{z \cdot t}{a}\\ \end{array} \end{array} \]
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
(FPCore (x y z t a)
 :precision binary64
 (if (<= z -3e+167) (* -4.5 (/ t (/ a z))) (* -4.5 (/ (* z t) a))))
assert(x < y && y < z && z < t && t < a);
assert(x < y && y < z && z < t && t < a);
double code(double x, double y, double z, double t, double a) {
	double tmp;
	if (z <= -3e+167) {
		tmp = -4.5 * (t / (a / z));
	} else {
		tmp = -4.5 * ((z * t) / a);
	}
	return tmp;
}
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
real(8) function code(x, y, z, t, a)
    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) :: tmp
    if (z <= (-3d+167)) then
        tmp = (-4.5d0) * (t / (a / z))
    else
        tmp = (-4.5d0) * ((z * t) / a)
    end if
    code = tmp
end function
assert x < y && y < z && z < t && t < a;
assert x < y && y < z && z < t && t < a;
public static double code(double x, double y, double z, double t, double a) {
	double tmp;
	if (z <= -3e+167) {
		tmp = -4.5 * (t / (a / z));
	} else {
		tmp = -4.5 * ((z * t) / a);
	}
	return tmp;
}
[x, y, z, t, a] = sort([x, y, z, t, a])
[x, y, z, t, a] = sort([x, y, z, t, a])
def code(x, y, z, t, a):
	tmp = 0
	if z <= -3e+167:
		tmp = -4.5 * (t / (a / z))
	else:
		tmp = -4.5 * ((z * t) / a)
	return tmp
x, y, z, t, a = sort([x, y, z, t, a])
x, y, z, t, a = sort([x, y, z, t, a])
function code(x, y, z, t, a)
	tmp = 0.0
	if (z <= -3e+167)
		tmp = Float64(-4.5 * Float64(t / Float64(a / z)));
	else
		tmp = Float64(-4.5 * Float64(Float64(z * t) / a));
	end
	return tmp
end
x, y, z, t, a = num2cell(sort([x, y, z, t, a])){:}
x, y, z, t, a = num2cell(sort([x, y, z, t, a])){:}
function tmp_2 = code(x, y, z, t, a)
	tmp = 0.0;
	if (z <= -3e+167)
		tmp = -4.5 * (t / (a / z));
	else
		tmp = -4.5 * ((z * t) / a);
	end
	tmp_2 = tmp;
end
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_, a_] := If[LessEqual[z, -3e+167], N[(-4.5 * N[(t / N[(a / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(-4.5 * N[(N[(z * t), $MachinePrecision] / a), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
[x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\\\
[x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\
\\
\begin{array}{l}
\mathbf{if}\;z \leq -3 \cdot 10^{+167}:\\
\;\;\;\;-4.5 \cdot \frac{t}{\frac{a}{z}}\\

\mathbf{else}:\\
\;\;\;\;-4.5 \cdot \frac{z \cdot t}{a}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -3.00000000000000012e167

    1. Initial program 66.9%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. associate-*l*66.9%

        \[\leadsto \frac{x \cdot y - \color{blue}{z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
    3. Simplified66.9%

      \[\leadsto \color{blue}{\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around 0 67.0%

      \[\leadsto \color{blue}{-4.5 \cdot \frac{t \cdot z}{a}} \]
    6. Step-by-step derivation
      1. associate-/l*80.4%

        \[\leadsto -4.5 \cdot \color{blue}{\frac{t}{\frac{a}{z}}} \]
    7. Simplified80.4%

      \[\leadsto \color{blue}{-4.5 \cdot \frac{t}{\frac{a}{z}}} \]

    if -3.00000000000000012e167 < z

    1. Initial program 91.7%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. associate-*l*91.3%

        \[\leadsto \frac{x \cdot y - \color{blue}{z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
    3. Simplified91.3%

      \[\leadsto \color{blue}{\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around 0 51.9%

      \[\leadsto \color{blue}{-4.5 \cdot \frac{t \cdot z}{a}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification55.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -3 \cdot 10^{+167}:\\ \;\;\;\;-4.5 \cdot \frac{t}{\frac{a}{z}}\\ \mathbf{else}:\\ \;\;\;\;-4.5 \cdot \frac{z \cdot t}{a}\\ \end{array} \]
  5. Add Preprocessing

Alternative 14: 51.1% accurate, 1.9× speedup?

\[\begin{array}{l} [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\\\ [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\ \\ -4.5 \cdot \left(z \cdot \frac{t}{a}\right) \end{array} \]
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
(FPCore (x y z t a) :precision binary64 (* -4.5 (* z (/ t a))))
assert(x < y && y < z && z < t && t < a);
assert(x < y && y < z && z < t && t < a);
double code(double x, double y, double z, double t, double a) {
	return -4.5 * (z * (t / a));
}
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
real(8) function code(x, y, z, t, a)
    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
    code = (-4.5d0) * (z * (t / a))
end function
assert x < y && y < z && z < t && t < a;
assert x < y && y < z && z < t && t < a;
public static double code(double x, double y, double z, double t, double a) {
	return -4.5 * (z * (t / a));
}
[x, y, z, t, a] = sort([x, y, z, t, a])
[x, y, z, t, a] = sort([x, y, z, t, a])
def code(x, y, z, t, a):
	return -4.5 * (z * (t / a))
x, y, z, t, a = sort([x, y, z, t, a])
x, y, z, t, a = sort([x, y, z, t, a])
function code(x, y, z, t, a)
	return Float64(-4.5 * Float64(z * Float64(t / a)))
end
x, y, z, t, a = num2cell(sort([x, y, z, t, a])){:}
x, y, z, t, a = num2cell(sort([x, y, z, t, a])){:}
function tmp = code(x, y, z, t, a)
	tmp = -4.5 * (z * (t / a));
end
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_, a_] := N[(-4.5 * N[(z * N[(t / a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
[x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\\\
[x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\
\\
-4.5 \cdot \left(z \cdot \frac{t}{a}\right)
\end{array}
Derivation
  1. Initial program 88.3%

    \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
  2. Step-by-step derivation
    1. associate-*l*88.0%

      \[\leadsto \frac{x \cdot y - \color{blue}{z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
  3. Simplified88.0%

    \[\leadsto \color{blue}{\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}} \]
  4. Add Preprocessing
  5. Taylor expanded in x around 0 54.0%

    \[\leadsto \color{blue}{-4.5 \cdot \frac{t \cdot z}{a}} \]
  6. Step-by-step derivation
    1. associate-/l*54.7%

      \[\leadsto -4.5 \cdot \color{blue}{\frac{t}{\frac{a}{z}}} \]
  7. Simplified54.7%

    \[\leadsto \color{blue}{-4.5 \cdot \frac{t}{\frac{a}{z}}} \]
  8. Step-by-step derivation
    1. associate-/r/54.4%

      \[\leadsto -4.5 \cdot \color{blue}{\left(\frac{t}{a} \cdot z\right)} \]
  9. Applied egg-rr54.4%

    \[\leadsto -4.5 \cdot \color{blue}{\left(\frac{t}{a} \cdot z\right)} \]
  10. Final simplification54.4%

    \[\leadsto -4.5 \cdot \left(z \cdot \frac{t}{a}\right) \]
  11. Add Preprocessing

Developer target: 93.7% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;a < -2.090464557976709 \cdot 10^{+86}:\\ \;\;\;\;0.5 \cdot \frac{y \cdot x}{a} - 4.5 \cdot \frac{t}{\frac{a}{z}}\\ \mathbf{elif}\;a < 2.144030707833976 \cdot 10^{+99}:\\ \;\;\;\;\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}\\ \mathbf{else}:\\ \;\;\;\;\frac{y}{a} \cdot \left(x \cdot 0.5\right) - \frac{t}{a} \cdot \left(z \cdot 4.5\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (if (< a -2.090464557976709e+86)
   (- (* 0.5 (/ (* y x) a)) (* 4.5 (/ t (/ a z))))
   (if (< a 2.144030707833976e+99)
     (/ (- (* x y) (* z (* 9.0 t))) (* a 2.0))
     (- (* (/ y a) (* x 0.5)) (* (/ t a) (* z 4.5))))))
double code(double x, double y, double z, double t, double a) {
	double tmp;
	if (a < -2.090464557976709e+86) {
		tmp = (0.5 * ((y * x) / a)) - (4.5 * (t / (a / z)));
	} else if (a < 2.144030707833976e+99) {
		tmp = ((x * y) - (z * (9.0 * t))) / (a * 2.0);
	} else {
		tmp = ((y / a) * (x * 0.5)) - ((t / a) * (z * 4.5));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a)
    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) :: tmp
    if (a < (-2.090464557976709d+86)) then
        tmp = (0.5d0 * ((y * x) / a)) - (4.5d0 * (t / (a / z)))
    else if (a < 2.144030707833976d+99) then
        tmp = ((x * y) - (z * (9.0d0 * t))) / (a * 2.0d0)
    else
        tmp = ((y / a) * (x * 0.5d0)) - ((t / a) * (z * 4.5d0))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a) {
	double tmp;
	if (a < -2.090464557976709e+86) {
		tmp = (0.5 * ((y * x) / a)) - (4.5 * (t / (a / z)));
	} else if (a < 2.144030707833976e+99) {
		tmp = ((x * y) - (z * (9.0 * t))) / (a * 2.0);
	} else {
		tmp = ((y / a) * (x * 0.5)) - ((t / a) * (z * 4.5));
	}
	return tmp;
}
def code(x, y, z, t, a):
	tmp = 0
	if a < -2.090464557976709e+86:
		tmp = (0.5 * ((y * x) / a)) - (4.5 * (t / (a / z)))
	elif a < 2.144030707833976e+99:
		tmp = ((x * y) - (z * (9.0 * t))) / (a * 2.0)
	else:
		tmp = ((y / a) * (x * 0.5)) - ((t / a) * (z * 4.5))
	return tmp
function code(x, y, z, t, a)
	tmp = 0.0
	if (a < -2.090464557976709e+86)
		tmp = Float64(Float64(0.5 * Float64(Float64(y * x) / a)) - Float64(4.5 * Float64(t / Float64(a / z))));
	elseif (a < 2.144030707833976e+99)
		tmp = Float64(Float64(Float64(x * y) - Float64(z * Float64(9.0 * t))) / Float64(a * 2.0));
	else
		tmp = Float64(Float64(Float64(y / a) * Float64(x * 0.5)) - Float64(Float64(t / a) * Float64(z * 4.5)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a)
	tmp = 0.0;
	if (a < -2.090464557976709e+86)
		tmp = (0.5 * ((y * x) / a)) - (4.5 * (t / (a / z)));
	elseif (a < 2.144030707833976e+99)
		tmp = ((x * y) - (z * (9.0 * t))) / (a * 2.0);
	else
		tmp = ((y / a) * (x * 0.5)) - ((t / a) * (z * 4.5));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_] := If[Less[a, -2.090464557976709e+86], N[(N[(0.5 * N[(N[(y * x), $MachinePrecision] / a), $MachinePrecision]), $MachinePrecision] - N[(4.5 * N[(t / N[(a / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[Less[a, 2.144030707833976e+99], N[(N[(N[(x * y), $MachinePrecision] - N[(z * N[(9.0 * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(a * 2.0), $MachinePrecision]), $MachinePrecision], N[(N[(N[(y / a), $MachinePrecision] * N[(x * 0.5), $MachinePrecision]), $MachinePrecision] - N[(N[(t / a), $MachinePrecision] * N[(z * 4.5), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;a < -2.090464557976709 \cdot 10^{+86}:\\
\;\;\;\;0.5 \cdot \frac{y \cdot x}{a} - 4.5 \cdot \frac{t}{\frac{a}{z}}\\

\mathbf{elif}\;a < 2.144030707833976 \cdot 10^{+99}:\\
\;\;\;\;\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}\\

\mathbf{else}:\\
\;\;\;\;\frac{y}{a} \cdot \left(x \cdot 0.5\right) - \frac{t}{a} \cdot \left(z \cdot 4.5\right)\\


\end{array}
\end{array}

Reproduce

?
herbie shell --seed 2024010 
(FPCore (x y z t a)
  :name "Diagrams.Solve.Polynomial:cubForm  from diagrams-solve-0.1, I"
  :precision binary64

  :herbie-target
  (if (< a -2.090464557976709e+86) (- (* 0.5 (/ (* y x) a)) (* 4.5 (/ t (/ a z)))) (if (< a 2.144030707833976e+99) (/ (- (* x y) (* z (* 9.0 t))) (* a 2.0)) (- (* (/ y a) (* x 0.5)) (* (/ t a) (* z 4.5)))))

  (/ (- (* x y) (* (* z 9.0) t)) (* a 2.0)))