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

Percentage Accurate: 91.6% → 96.9%
Time: 10.3s
Alternatives: 11
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 11 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: 96.9% accurate, 0.1× speedup?

\[\begin{array}{l} [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\ \\ \begin{array}{l} t_1 := x \cdot y - \left(z \cdot 9\right) \cdot t\\ \mathbf{if}\;t\_1 \leq -\infty \lor \neg \left(t\_1 \leq 10^{+264}\right):\\ \;\;\;\;\frac{x}{a} \cdot \frac{y}{2} - \frac{z}{a} \cdot \frac{9 \cdot t}{2}\\ \mathbf{else}:\\ \;\;\;\;\frac{\mathsf{fma}\left(x, y, z \cdot \left(t \cdot -9\right)\right)}{a \cdot 2}\\ \end{array} \end{array} \]
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
(FPCore (x y z t a)
 :precision binary64
 (let* ((t_1 (- (* x y) (* (* z 9.0) t))))
   (if (or (<= t_1 (- INFINITY)) (not (<= t_1 1e+264)))
     (- (* (/ x a) (/ y 2.0)) (* (/ z a) (/ (* 9.0 t) 2.0)))
     (/ (fma x y (* z (* t -9.0))) (* a 2.0)))))
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 <= -((double) INFINITY)) || !(t_1 <= 1e+264)) {
		tmp = ((x / a) * (y / 2.0)) - ((z / a) * ((9.0 * t) / 2.0));
	} else {
		tmp = fma(x, y, (z * (t * -9.0))) / (a * 2.0);
	}
	return tmp;
}
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 <= Float64(-Inf)) || !(t_1 <= 1e+264))
		tmp = Float64(Float64(Float64(x / a) * Float64(y / 2.0)) - Float64(Float64(z / a) * Float64(Float64(9.0 * t) / 2.0)));
	else
		tmp = Float64(fma(x, y, Float64(z * Float64(t * -9.0))) / Float64(a * 2.0));
	end
	return tmp
end
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[Or[LessEqual[t$95$1, (-Infinity)], N[Not[LessEqual[t$95$1, 1e+264]], $MachinePrecision]], N[(N[(N[(x / a), $MachinePrecision] * N[(y / 2.0), $MachinePrecision]), $MachinePrecision] - N[(N[(z / a), $MachinePrecision] * N[(N[(9.0 * t), $MachinePrecision] / 2.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(x * y + N[(z * N[(t * -9.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(a * 2.0), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
[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 -\infty \lor \neg \left(t\_1 \leq 10^{+264}\right):\\
\;\;\;\;\frac{x}{a} \cdot \frac{y}{2} - \frac{z}{a} \cdot \frac{9 \cdot t}{2}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (-.f64 (*.f64 x y) (*.f64 (*.f64 z #s(literal 9 binary64)) t)) < -inf.0 or 1.00000000000000004e264 < (-.f64 (*.f64 x y) (*.f64 (*.f64 z #s(literal 9 binary64)) t))

    1. Initial program 59.8%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. div-sub53.9%

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

        \[\leadsto \frac{\color{blue}{y \cdot x}}{a \cdot 2} - \frac{\left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
      3. div-sub59.8%

        \[\leadsto \color{blue}{\frac{y \cdot x - \left(z \cdot 9\right) \cdot t}{a \cdot 2}} \]
      4. cancel-sign-sub-inv59.8%

        \[\leadsto \frac{\color{blue}{y \cdot x + \left(-z \cdot 9\right) \cdot t}}{a \cdot 2} \]
      5. *-commutative59.8%

        \[\leadsto \frac{\color{blue}{x \cdot y} + \left(-z \cdot 9\right) \cdot t}{a \cdot 2} \]
      6. fma-define59.9%

        \[\leadsto \frac{\color{blue}{\mathsf{fma}\left(x, y, \left(-z \cdot 9\right) \cdot t\right)}}{a \cdot 2} \]
      7. distribute-rgt-neg-in59.9%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \color{blue}{\left(z \cdot \left(-9\right)\right)} \cdot t\right)}{a \cdot 2} \]
      8. associate-*r*59.9%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \color{blue}{z \cdot \left(\left(-9\right) \cdot t\right)}\right)}{a \cdot 2} \]
      9. distribute-lft-neg-in59.9%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, z \cdot \color{blue}{\left(-9 \cdot t\right)}\right)}{a \cdot 2} \]
      10. *-commutative59.9%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, z \cdot \left(-\color{blue}{t \cdot 9}\right)\right)}{a \cdot 2} \]
      11. distribute-rgt-neg-in59.9%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, z \cdot \color{blue}{\left(t \cdot \left(-9\right)\right)}\right)}{a \cdot 2} \]
      12. metadata-eval59.9%

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

      \[\leadsto \color{blue}{\frac{\mathsf{fma}\left(x, y, z \cdot \left(t \cdot -9\right)\right)}{a \cdot 2}} \]
    4. Add Preprocessing
    5. Step-by-step derivation
      1. *-commutative59.9%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, z \cdot \color{blue}{\left(-9 \cdot t\right)}\right)}{a \cdot 2} \]
      2. associate-*r*59.9%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \color{blue}{\left(z \cdot -9\right) \cdot t}\right)}{a \cdot 2} \]
      3. metadata-eval59.9%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \left(z \cdot \color{blue}{\left(-9\right)}\right) \cdot t\right)}{a \cdot 2} \]
      4. distribute-rgt-neg-in59.9%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \color{blue}{\left(-z \cdot 9\right)} \cdot t\right)}{a \cdot 2} \]
      5. distribute-lft-neg-in59.9%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \color{blue}{-\left(z \cdot 9\right) \cdot t}\right)}{a \cdot 2} \]
      6. fma-neg59.8%

        \[\leadsto \frac{\color{blue}{x \cdot y - \left(z \cdot 9\right) \cdot t}}{a \cdot 2} \]
      7. associate-*l*59.8%

        \[\leadsto \frac{x \cdot y - \color{blue}{z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
    6. Applied egg-rr59.8%

      \[\leadsto \frac{\color{blue}{x \cdot y - z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
    7. Step-by-step derivation
      1. div-sub53.9%

        \[\leadsto \color{blue}{\frac{x \cdot y}{a \cdot 2} - \frac{z \cdot \left(9 \cdot t\right)}{a \cdot 2}} \]
      2. times-frac66.4%

        \[\leadsto \color{blue}{\frac{x}{a} \cdot \frac{y}{2}} - \frac{z \cdot \left(9 \cdot t\right)}{a \cdot 2} \]
      3. times-frac91.0%

        \[\leadsto \frac{x}{a} \cdot \frac{y}{2} - \color{blue}{\frac{z}{a} \cdot \frac{9 \cdot t}{2}} \]
    8. Applied egg-rr91.0%

      \[\leadsto \color{blue}{\frac{x}{a} \cdot \frac{y}{2} - \frac{z}{a} \cdot \frac{9 \cdot t}{2}} \]

    if -inf.0 < (-.f64 (*.f64 x y) (*.f64 (*.f64 z #s(literal 9 binary64)) t)) < 1.00000000000000004e264

    1. Initial program 98.3%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. div-sub96.8%

        \[\leadsto \color{blue}{\frac{x \cdot y}{a \cdot 2} - \frac{\left(z \cdot 9\right) \cdot t}{a \cdot 2}} \]
      2. *-commutative96.8%

        \[\leadsto \frac{\color{blue}{y \cdot x}}{a \cdot 2} - \frac{\left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
      3. div-sub98.3%

        \[\leadsto \color{blue}{\frac{y \cdot x - \left(z \cdot 9\right) \cdot t}{a \cdot 2}} \]
      4. cancel-sign-sub-inv98.3%

        \[\leadsto \frac{\color{blue}{y \cdot x + \left(-z \cdot 9\right) \cdot t}}{a \cdot 2} \]
      5. *-commutative98.3%

        \[\leadsto \frac{\color{blue}{x \cdot y} + \left(-z \cdot 9\right) \cdot t}{a \cdot 2} \]
      6. fma-define98.3%

        \[\leadsto \frac{\color{blue}{\mathsf{fma}\left(x, y, \left(-z \cdot 9\right) \cdot t\right)}}{a \cdot 2} \]
      7. distribute-rgt-neg-in98.3%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \color{blue}{\left(z \cdot \left(-9\right)\right)} \cdot t\right)}{a \cdot 2} \]
      8. associate-*r*98.3%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \color{blue}{z \cdot \left(\left(-9\right) \cdot t\right)}\right)}{a \cdot 2} \]
      9. distribute-lft-neg-in98.3%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, z \cdot \color{blue}{\left(-9 \cdot t\right)}\right)}{a \cdot 2} \]
      10. *-commutative98.3%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, z \cdot \left(-\color{blue}{t \cdot 9}\right)\right)}{a \cdot 2} \]
      11. distribute-rgt-neg-in98.3%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, z \cdot \color{blue}{\left(t \cdot \left(-9\right)\right)}\right)}{a \cdot 2} \]
      12. metadata-eval98.3%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, z \cdot \left(t \cdot \color{blue}{-9}\right)\right)}{a \cdot 2} \]
    3. Simplified98.3%

      \[\leadsto \color{blue}{\frac{\mathsf{fma}\left(x, y, z \cdot \left(t \cdot -9\right)\right)}{a \cdot 2}} \]
    4. Add Preprocessing
  3. Recombined 2 regimes into one program.
  4. Final simplification96.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \cdot y - \left(z \cdot 9\right) \cdot t \leq -\infty \lor \neg \left(x \cdot y - \left(z \cdot 9\right) \cdot t \leq 10^{+264}\right):\\ \;\;\;\;\frac{x}{a} \cdot \frac{y}{2} - \frac{z}{a} \cdot \frac{9 \cdot t}{2}\\ \mathbf{else}:\\ \;\;\;\;\frac{\mathsf{fma}\left(x, y, z \cdot \left(t \cdot -9\right)\right)}{a \cdot 2}\\ \end{array} \]
  5. Add Preprocessing

Alternative 2: 96.7% accurate, 0.3× speedup?

\[\begin{array}{l} [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\ \\ \begin{array}{l} t_1 := x \cdot y - \left(z \cdot 9\right) \cdot t\\ \mathbf{if}\;t\_1 \leq -\infty \lor \neg \left(t\_1 \leq 10^{+229}\right):\\ \;\;\;\;x \cdot \frac{y}{a \cdot 2} - \left(z \cdot 9\right) \cdot \frac{t}{a \cdot 2}\\ \mathbf{else}:\\ \;\;\;\;\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}\\ \end{array} \end{array} \]
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
(FPCore (x y z t a)
 :precision binary64
 (let* ((t_1 (- (* x y) (* (* z 9.0) t))))
   (if (or (<= t_1 (- INFINITY)) (not (<= t_1 1e+229)))
     (- (* x (/ y (* a 2.0))) (* (* z 9.0) (/ t (* a 2.0))))
     (/ (- (* x y) (* z (* 9.0 t))) (* a 2.0)))))
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 <= -((double) INFINITY)) || !(t_1 <= 1e+229)) {
		tmp = (x * (y / (a * 2.0))) - ((z * 9.0) * (t / (a * 2.0)));
	} else {
		tmp = ((x * y) - (z * (9.0 * t))) / (a * 2.0);
	}
	return tmp;
}
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 = (x * y) - ((z * 9.0) * t);
	double tmp;
	if ((t_1 <= -Double.POSITIVE_INFINITY) || !(t_1 <= 1e+229)) {
		tmp = (x * (y / (a * 2.0))) - ((z * 9.0) * (t / (a * 2.0)));
	} else {
		tmp = ((x * y) - (z * (9.0 * t))) / (a * 2.0);
	}
	return tmp;
}
[x, y, z, t, a] = sort([x, y, z, t, a])
def code(x, y, z, t, a):
	t_1 = (x * y) - ((z * 9.0) * t)
	tmp = 0
	if (t_1 <= -math.inf) or not (t_1 <= 1e+229):
		tmp = (x * (y / (a * 2.0))) - ((z * 9.0) * (t / (a * 2.0)))
	else:
		tmp = ((x * y) - (z * (9.0 * t))) / (a * 2.0)
	return tmp
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 <= Float64(-Inf)) || !(t_1 <= 1e+229))
		tmp = Float64(Float64(x * Float64(y / Float64(a * 2.0))) - Float64(Float64(z * 9.0) * Float64(t / Float64(a * 2.0))));
	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])){:}
function tmp_2 = code(x, y, z, t, a)
	t_1 = (x * y) - ((z * 9.0) * t);
	tmp = 0.0;
	if ((t_1 <= -Inf) || ~((t_1 <= 1e+229)))
		tmp = (x * (y / (a * 2.0))) - ((z * 9.0) * (t / (a * 2.0)));
	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.
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[Or[LessEqual[t$95$1, (-Infinity)], N[Not[LessEqual[t$95$1, 1e+229]], $MachinePrecision]], N[(N[(x * N[(y / N[(a * 2.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - N[(N[(z * 9.0), $MachinePrecision] * N[(t / N[(a * 2.0), $MachinePrecision]), $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])\\
\\
\begin{array}{l}
t_1 := x \cdot y - \left(z \cdot 9\right) \cdot t\\
\mathbf{if}\;t\_1 \leq -\infty \lor \neg \left(t\_1 \leq 10^{+229}\right):\\
\;\;\;\;x \cdot \frac{y}{a \cdot 2} - \left(z \cdot 9\right) \cdot \frac{t}{a \cdot 2}\\

\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 (*.f64 x y) (*.f64 (*.f64 z #s(literal 9 binary64)) t)) < -inf.0 or 9.9999999999999999e228 < (-.f64 (*.f64 x y) (*.f64 (*.f64 z #s(literal 9 binary64)) t))

    1. Initial program 63.0%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Add Preprocessing
    3. Step-by-step derivation
      1. div-sub57.6%

        \[\leadsto \color{blue}{\frac{x \cdot y}{a \cdot 2} - \frac{\left(z \cdot 9\right) \cdot t}{a \cdot 2}} \]
      2. associate-/l*69.1%

        \[\leadsto \color{blue}{x \cdot \frac{y}{a \cdot 2}} - \frac{\left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
      3. associate-/l*90.2%

        \[\leadsto x \cdot \frac{y}{a \cdot 2} - \color{blue}{\left(z \cdot 9\right) \cdot \frac{t}{a \cdot 2}} \]
    4. Applied egg-rr90.2%

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

    if -inf.0 < (-.f64 (*.f64 x y) (*.f64 (*.f64 z #s(literal 9 binary64)) t)) < 9.9999999999999999e228

    1. Initial program 98.3%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. div-sub96.6%

        \[\leadsto \color{blue}{\frac{x \cdot y}{a \cdot 2} - \frac{\left(z \cdot 9\right) \cdot t}{a \cdot 2}} \]
      2. *-commutative96.6%

        \[\leadsto \frac{\color{blue}{y \cdot x}}{a \cdot 2} - \frac{\left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
      3. div-sub98.3%

        \[\leadsto \color{blue}{\frac{y \cdot x - \left(z \cdot 9\right) \cdot t}{a \cdot 2}} \]
      4. cancel-sign-sub-inv98.3%

        \[\leadsto \frac{\color{blue}{y \cdot x + \left(-z \cdot 9\right) \cdot t}}{a \cdot 2} \]
      5. *-commutative98.3%

        \[\leadsto \frac{\color{blue}{x \cdot y} + \left(-z \cdot 9\right) \cdot t}{a \cdot 2} \]
      6. fma-define98.3%

        \[\leadsto \frac{\color{blue}{\mathsf{fma}\left(x, y, \left(-z \cdot 9\right) \cdot t\right)}}{a \cdot 2} \]
      7. distribute-rgt-neg-in98.3%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \color{blue}{\left(z \cdot \left(-9\right)\right)} \cdot t\right)}{a \cdot 2} \]
      8. associate-*r*98.2%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \color{blue}{z \cdot \left(\left(-9\right) \cdot t\right)}\right)}{a \cdot 2} \]
      9. distribute-lft-neg-in98.2%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, z \cdot \color{blue}{\left(-9 \cdot t\right)}\right)}{a \cdot 2} \]
      10. *-commutative98.2%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, z \cdot \left(-\color{blue}{t \cdot 9}\right)\right)}{a \cdot 2} \]
      11. distribute-rgt-neg-in98.2%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, z \cdot \color{blue}{\left(t \cdot \left(-9\right)\right)}\right)}{a \cdot 2} \]
      12. metadata-eval98.2%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, z \cdot \left(t \cdot \color{blue}{-9}\right)\right)}{a \cdot 2} \]
    3. Simplified98.2%

      \[\leadsto \color{blue}{\frac{\mathsf{fma}\left(x, y, z \cdot \left(t \cdot -9\right)\right)}{a \cdot 2}} \]
    4. Add Preprocessing
    5. Step-by-step derivation
      1. *-commutative98.2%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, z \cdot \color{blue}{\left(-9 \cdot t\right)}\right)}{a \cdot 2} \]
      2. associate-*r*98.3%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \color{blue}{\left(z \cdot -9\right) \cdot t}\right)}{a \cdot 2} \]
      3. metadata-eval98.3%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \left(z \cdot \color{blue}{\left(-9\right)}\right) \cdot t\right)}{a \cdot 2} \]
      4. distribute-rgt-neg-in98.3%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \color{blue}{\left(-z \cdot 9\right)} \cdot t\right)}{a \cdot 2} \]
      5. distribute-lft-neg-in98.3%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \color{blue}{-\left(z \cdot 9\right) \cdot t}\right)}{a \cdot 2} \]
      6. fma-neg98.3%

        \[\leadsto \frac{\color{blue}{x \cdot y - \left(z \cdot 9\right) \cdot t}}{a \cdot 2} \]
      7. associate-*l*98.2%

        \[\leadsto \frac{x \cdot y - \color{blue}{z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
    6. Applied egg-rr98.2%

      \[\leadsto \frac{\color{blue}{x \cdot y - z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification95.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \cdot y - \left(z \cdot 9\right) \cdot t \leq -\infty \lor \neg \left(x \cdot y - \left(z \cdot 9\right) \cdot t \leq 10^{+229}\right):\\ \;\;\;\;x \cdot \frac{y}{a \cdot 2} - \left(z \cdot 9\right) \cdot \frac{t}{a \cdot 2}\\ \mathbf{else}:\\ \;\;\;\;\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}\\ \end{array} \]
  5. Add Preprocessing

Alternative 3: 96.9% accurate, 0.3× speedup?

\[\begin{array}{l} [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\ \\ \begin{array}{l} t_1 := x \cdot y - \left(z \cdot 9\right) \cdot t\\ \mathbf{if}\;t\_1 \leq -\infty \lor \neg \left(t\_1 \leq 10^{+264}\right):\\ \;\;\;\;\frac{x}{a} \cdot \frac{y}{2} - \frac{z}{a} \cdot \frac{9 \cdot t}{2}\\ \mathbf{else}:\\ \;\;\;\;\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}\\ \end{array} \end{array} \]
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
(FPCore (x y z t a)
 :precision binary64
 (let* ((t_1 (- (* x y) (* (* z 9.0) t))))
   (if (or (<= t_1 (- INFINITY)) (not (<= t_1 1e+264)))
     (- (* (/ x a) (/ y 2.0)) (* (/ z a) (/ (* 9.0 t) 2.0)))
     (/ (- (* x y) (* z (* 9.0 t))) (* a 2.0)))))
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 <= -((double) INFINITY)) || !(t_1 <= 1e+264)) {
		tmp = ((x / a) * (y / 2.0)) - ((z / a) * ((9.0 * t) / 2.0));
	} else {
		tmp = ((x * y) - (z * (9.0 * t))) / (a * 2.0);
	}
	return tmp;
}
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 = (x * y) - ((z * 9.0) * t);
	double tmp;
	if ((t_1 <= -Double.POSITIVE_INFINITY) || !(t_1 <= 1e+264)) {
		tmp = ((x / a) * (y / 2.0)) - ((z / a) * ((9.0 * t) / 2.0));
	} else {
		tmp = ((x * y) - (z * (9.0 * t))) / (a * 2.0);
	}
	return tmp;
}
[x, y, z, t, a] = sort([x, y, z, t, a])
def code(x, y, z, t, a):
	t_1 = (x * y) - ((z * 9.0) * t)
	tmp = 0
	if (t_1 <= -math.inf) or not (t_1 <= 1e+264):
		tmp = ((x / a) * (y / 2.0)) - ((z / a) * ((9.0 * t) / 2.0))
	else:
		tmp = ((x * y) - (z * (9.0 * t))) / (a * 2.0)
	return tmp
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 <= Float64(-Inf)) || !(t_1 <= 1e+264))
		tmp = Float64(Float64(Float64(x / a) * Float64(y / 2.0)) - Float64(Float64(z / a) * Float64(Float64(9.0 * t) / 2.0)));
	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])){:}
function tmp_2 = code(x, y, z, t, a)
	t_1 = (x * y) - ((z * 9.0) * t);
	tmp = 0.0;
	if ((t_1 <= -Inf) || ~((t_1 <= 1e+264)))
		tmp = ((x / a) * (y / 2.0)) - ((z / a) * ((9.0 * t) / 2.0));
	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.
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[Or[LessEqual[t$95$1, (-Infinity)], N[Not[LessEqual[t$95$1, 1e+264]], $MachinePrecision]], N[(N[(N[(x / a), $MachinePrecision] * N[(y / 2.0), $MachinePrecision]), $MachinePrecision] - N[(N[(z / a), $MachinePrecision] * N[(N[(9.0 * t), $MachinePrecision] / 2.0), $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])\\
\\
\begin{array}{l}
t_1 := x \cdot y - \left(z \cdot 9\right) \cdot t\\
\mathbf{if}\;t\_1 \leq -\infty \lor \neg \left(t\_1 \leq 10^{+264}\right):\\
\;\;\;\;\frac{x}{a} \cdot \frac{y}{2} - \frac{z}{a} \cdot \frac{9 \cdot t}{2}\\

\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 (*.f64 x y) (*.f64 (*.f64 z #s(literal 9 binary64)) t)) < -inf.0 or 1.00000000000000004e264 < (-.f64 (*.f64 x y) (*.f64 (*.f64 z #s(literal 9 binary64)) t))

    1. Initial program 59.8%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. div-sub53.9%

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

        \[\leadsto \frac{\color{blue}{y \cdot x}}{a \cdot 2} - \frac{\left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
      3. div-sub59.8%

        \[\leadsto \color{blue}{\frac{y \cdot x - \left(z \cdot 9\right) \cdot t}{a \cdot 2}} \]
      4. cancel-sign-sub-inv59.8%

        \[\leadsto \frac{\color{blue}{y \cdot x + \left(-z \cdot 9\right) \cdot t}}{a \cdot 2} \]
      5. *-commutative59.8%

        \[\leadsto \frac{\color{blue}{x \cdot y} + \left(-z \cdot 9\right) \cdot t}{a \cdot 2} \]
      6. fma-define59.9%

        \[\leadsto \frac{\color{blue}{\mathsf{fma}\left(x, y, \left(-z \cdot 9\right) \cdot t\right)}}{a \cdot 2} \]
      7. distribute-rgt-neg-in59.9%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \color{blue}{\left(z \cdot \left(-9\right)\right)} \cdot t\right)}{a \cdot 2} \]
      8. associate-*r*59.9%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \color{blue}{z \cdot \left(\left(-9\right) \cdot t\right)}\right)}{a \cdot 2} \]
      9. distribute-lft-neg-in59.9%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, z \cdot \color{blue}{\left(-9 \cdot t\right)}\right)}{a \cdot 2} \]
      10. *-commutative59.9%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, z \cdot \left(-\color{blue}{t \cdot 9}\right)\right)}{a \cdot 2} \]
      11. distribute-rgt-neg-in59.9%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, z \cdot \color{blue}{\left(t \cdot \left(-9\right)\right)}\right)}{a \cdot 2} \]
      12. metadata-eval59.9%

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

      \[\leadsto \color{blue}{\frac{\mathsf{fma}\left(x, y, z \cdot \left(t \cdot -9\right)\right)}{a \cdot 2}} \]
    4. Add Preprocessing
    5. Step-by-step derivation
      1. *-commutative59.9%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, z \cdot \color{blue}{\left(-9 \cdot t\right)}\right)}{a \cdot 2} \]
      2. associate-*r*59.9%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \color{blue}{\left(z \cdot -9\right) \cdot t}\right)}{a \cdot 2} \]
      3. metadata-eval59.9%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \left(z \cdot \color{blue}{\left(-9\right)}\right) \cdot t\right)}{a \cdot 2} \]
      4. distribute-rgt-neg-in59.9%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \color{blue}{\left(-z \cdot 9\right)} \cdot t\right)}{a \cdot 2} \]
      5. distribute-lft-neg-in59.9%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \color{blue}{-\left(z \cdot 9\right) \cdot t}\right)}{a \cdot 2} \]
      6. fma-neg59.8%

        \[\leadsto \frac{\color{blue}{x \cdot y - \left(z \cdot 9\right) \cdot t}}{a \cdot 2} \]
      7. associate-*l*59.8%

        \[\leadsto \frac{x \cdot y - \color{blue}{z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
    6. Applied egg-rr59.8%

      \[\leadsto \frac{\color{blue}{x \cdot y - z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
    7. Step-by-step derivation
      1. div-sub53.9%

        \[\leadsto \color{blue}{\frac{x \cdot y}{a \cdot 2} - \frac{z \cdot \left(9 \cdot t\right)}{a \cdot 2}} \]
      2. times-frac66.4%

        \[\leadsto \color{blue}{\frac{x}{a} \cdot \frac{y}{2}} - \frac{z \cdot \left(9 \cdot t\right)}{a \cdot 2} \]
      3. times-frac91.0%

        \[\leadsto \frac{x}{a} \cdot \frac{y}{2} - \color{blue}{\frac{z}{a} \cdot \frac{9 \cdot t}{2}} \]
    8. Applied egg-rr91.0%

      \[\leadsto \color{blue}{\frac{x}{a} \cdot \frac{y}{2} - \frac{z}{a} \cdot \frac{9 \cdot t}{2}} \]

    if -inf.0 < (-.f64 (*.f64 x y) (*.f64 (*.f64 z #s(literal 9 binary64)) t)) < 1.00000000000000004e264

    1. Initial program 98.3%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. div-sub96.8%

        \[\leadsto \color{blue}{\frac{x \cdot y}{a \cdot 2} - \frac{\left(z \cdot 9\right) \cdot t}{a \cdot 2}} \]
      2. *-commutative96.8%

        \[\leadsto \frac{\color{blue}{y \cdot x}}{a \cdot 2} - \frac{\left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
      3. div-sub98.3%

        \[\leadsto \color{blue}{\frac{y \cdot x - \left(z \cdot 9\right) \cdot t}{a \cdot 2}} \]
      4. cancel-sign-sub-inv98.3%

        \[\leadsto \frac{\color{blue}{y \cdot x + \left(-z \cdot 9\right) \cdot t}}{a \cdot 2} \]
      5. *-commutative98.3%

        \[\leadsto \frac{\color{blue}{x \cdot y} + \left(-z \cdot 9\right) \cdot t}{a \cdot 2} \]
      6. fma-define98.3%

        \[\leadsto \frac{\color{blue}{\mathsf{fma}\left(x, y, \left(-z \cdot 9\right) \cdot t\right)}}{a \cdot 2} \]
      7. distribute-rgt-neg-in98.3%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \color{blue}{\left(z \cdot \left(-9\right)\right)} \cdot t\right)}{a \cdot 2} \]
      8. associate-*r*98.3%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \color{blue}{z \cdot \left(\left(-9\right) \cdot t\right)}\right)}{a \cdot 2} \]
      9. distribute-lft-neg-in98.3%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, z \cdot \color{blue}{\left(-9 \cdot t\right)}\right)}{a \cdot 2} \]
      10. *-commutative98.3%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, z \cdot \left(-\color{blue}{t \cdot 9}\right)\right)}{a \cdot 2} \]
      11. distribute-rgt-neg-in98.3%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, z \cdot \color{blue}{\left(t \cdot \left(-9\right)\right)}\right)}{a \cdot 2} \]
      12. metadata-eval98.3%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, z \cdot \left(t \cdot \color{blue}{-9}\right)\right)}{a \cdot 2} \]
    3. Simplified98.3%

      \[\leadsto \color{blue}{\frac{\mathsf{fma}\left(x, y, z \cdot \left(t \cdot -9\right)\right)}{a \cdot 2}} \]
    4. Add Preprocessing
    5. Step-by-step derivation
      1. *-commutative98.3%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, z \cdot \color{blue}{\left(-9 \cdot t\right)}\right)}{a \cdot 2} \]
      2. associate-*r*98.3%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \color{blue}{\left(z \cdot -9\right) \cdot t}\right)}{a \cdot 2} \]
      3. metadata-eval98.3%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \left(z \cdot \color{blue}{\left(-9\right)}\right) \cdot t\right)}{a \cdot 2} \]
      4. distribute-rgt-neg-in98.3%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \color{blue}{\left(-z \cdot 9\right)} \cdot t\right)}{a \cdot 2} \]
      5. distribute-lft-neg-in98.3%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \color{blue}{-\left(z \cdot 9\right) \cdot t}\right)}{a \cdot 2} \]
      6. fma-neg98.3%

        \[\leadsto \frac{\color{blue}{x \cdot y - \left(z \cdot 9\right) \cdot t}}{a \cdot 2} \]
      7. associate-*l*98.3%

        \[\leadsto \frac{x \cdot y - \color{blue}{z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
    6. Applied egg-rr98.3%

      \[\leadsto \frac{\color{blue}{x \cdot y - z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification96.3%

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

Alternative 4: 95.0% accurate, 0.4× speedup?

\[\begin{array}{l} [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\ \\ \begin{array}{l} t_1 := \left(z \cdot 9\right) \cdot t\\ \mathbf{if}\;t\_1 \leq -5 \cdot 10^{+289}:\\ \;\;\;\;t \cdot \left(\frac{z}{a} \cdot -4.5\right)\\ \mathbf{elif}\;t\_1 \leq 10^{+244}:\\ \;\;\;\;\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}\\ \mathbf{else}:\\ \;\;\;\;\frac{z \cdot -4.5}{\frac{a}{t}}\\ \end{array} \end{array} \]
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 (* (* z 9.0) t)))
   (if (<= t_1 -5e+289)
     (* t (* (/ z a) -4.5))
     (if (<= t_1 1e+244)
       (/ (- (* x y) (* z (* 9.0 t))) (* a 2.0))
       (/ (* z -4.5) (/ a t))))))
assert(x < y && y < z && z < t && t < a);
double code(double x, double y, double z, double t, double a) {
	double t_1 = (z * 9.0) * t;
	double tmp;
	if (t_1 <= -5e+289) {
		tmp = t * ((z / a) * -4.5);
	} else if (t_1 <= 1e+244) {
		tmp = ((x * y) - (z * (9.0 * t))) / (a * 2.0);
	} else {
		tmp = (z * -4.5) / (a / t);
	}
	return tmp;
}
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 = (z * 9.0d0) * t
    if (t_1 <= (-5d+289)) then
        tmp = t * ((z / a) * (-4.5d0))
    else if (t_1 <= 1d+244) then
        tmp = ((x * y) - (z * (9.0d0 * t))) / (a * 2.0d0)
    else
        tmp = (z * (-4.5d0)) / (a / t)
    end if
    code = tmp
end function
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 = (z * 9.0) * t;
	double tmp;
	if (t_1 <= -5e+289) {
		tmp = t * ((z / a) * -4.5);
	} else if (t_1 <= 1e+244) {
		tmp = ((x * y) - (z * (9.0 * t))) / (a * 2.0);
	} else {
		tmp = (z * -4.5) / (a / t);
	}
	return tmp;
}
[x, y, z, t, a] = sort([x, y, z, t, a])
def code(x, y, z, t, a):
	t_1 = (z * 9.0) * t
	tmp = 0
	if t_1 <= -5e+289:
		tmp = t * ((z / a) * -4.5)
	elif t_1 <= 1e+244:
		tmp = ((x * y) - (z * (9.0 * t))) / (a * 2.0)
	else:
		tmp = (z * -4.5) / (a / t)
	return tmp
x, y, z, t, a = sort([x, y, z, t, a])
function code(x, y, z, t, a)
	t_1 = Float64(Float64(z * 9.0) * t)
	tmp = 0.0
	if (t_1 <= -5e+289)
		tmp = Float64(t * Float64(Float64(z / a) * -4.5));
	elseif (t_1 <= 1e+244)
		tmp = Float64(Float64(Float64(x * y) - Float64(z * Float64(9.0 * t))) / Float64(a * 2.0));
	else
		tmp = Float64(Float64(z * -4.5) / Float64(a / t));
	end
	return tmp
end
x, y, z, t, a = num2cell(sort([x, y, z, t, a])){:}
function tmp_2 = code(x, y, z, t, a)
	t_1 = (z * 9.0) * t;
	tmp = 0.0;
	if (t_1 <= -5e+289)
		tmp = t * ((z / a) * -4.5);
	elseif (t_1 <= 1e+244)
		tmp = ((x * y) - (z * (9.0 * t))) / (a * 2.0);
	else
		tmp = (z * -4.5) / (a / t);
	end
	tmp_2 = tmp;
end
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[(z * 9.0), $MachinePrecision] * t), $MachinePrecision]}, If[LessEqual[t$95$1, -5e+289], N[(t * N[(N[(z / a), $MachinePrecision] * -4.5), $MachinePrecision]), $MachinePrecision], If[LessEqual[t$95$1, 1e+244], N[(N[(N[(x * y), $MachinePrecision] - N[(z * N[(9.0 * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(a * 2.0), $MachinePrecision]), $MachinePrecision], N[(N[(z * -4.5), $MachinePrecision] / N[(a / t), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}
[x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\
\\
\begin{array}{l}
t_1 := \left(z \cdot 9\right) \cdot t\\
\mathbf{if}\;t\_1 \leq -5 \cdot 10^{+289}:\\
\;\;\;\;t \cdot \left(\frac{z}{a} \cdot -4.5\right)\\

\mathbf{elif}\;t\_1 \leq 10^{+244}:\\
\;\;\;\;\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if (*.f64 (*.f64 z #s(literal 9 binary64)) t) < -5.00000000000000031e289

    1. Initial program 59.1%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Add Preprocessing
    3. Taylor expanded in x around 0 59.1%

      \[\leadsto \frac{\color{blue}{-9 \cdot \left(t \cdot z\right)}}{a \cdot 2} \]
    4. Step-by-step derivation
      1. *-commutative59.1%

        \[\leadsto \frac{\color{blue}{\left(t \cdot z\right) \cdot -9}}{a \cdot 2} \]
      2. associate-*r*59.1%

        \[\leadsto \frac{\color{blue}{t \cdot \left(z \cdot -9\right)}}{a \cdot 2} \]
    5. Simplified59.1%

      \[\leadsto \frac{\color{blue}{t \cdot \left(z \cdot -9\right)}}{a \cdot 2} \]
    6. Step-by-step derivation
      1. associate-/l*93.5%

        \[\leadsto \color{blue}{t \cdot \frac{z \cdot -9}{a \cdot 2}} \]
      2. times-frac93.6%

        \[\leadsto t \cdot \color{blue}{\left(\frac{z}{a} \cdot \frac{-9}{2}\right)} \]
      3. metadata-eval93.6%

        \[\leadsto t \cdot \left(\frac{z}{a} \cdot \color{blue}{-4.5}\right) \]
    7. Applied egg-rr93.6%

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

    if -5.00000000000000031e289 < (*.f64 (*.f64 z #s(literal 9 binary64)) t) < 1.00000000000000007e244

    1. Initial program 94.7%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Step-by-step derivation
      1. div-sub92.4%

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

        \[\leadsto \frac{\color{blue}{y \cdot x}}{a \cdot 2} - \frac{\left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
      3. div-sub94.7%

        \[\leadsto \color{blue}{\frac{y \cdot x - \left(z \cdot 9\right) \cdot t}{a \cdot 2}} \]
      4. cancel-sign-sub-inv94.7%

        \[\leadsto \frac{\color{blue}{y \cdot x + \left(-z \cdot 9\right) \cdot t}}{a \cdot 2} \]
      5. *-commutative94.7%

        \[\leadsto \frac{\color{blue}{x \cdot y} + \left(-z \cdot 9\right) \cdot t}{a \cdot 2} \]
      6. fma-define94.7%

        \[\leadsto \frac{\color{blue}{\mathsf{fma}\left(x, y, \left(-z \cdot 9\right) \cdot t\right)}}{a \cdot 2} \]
      7. distribute-rgt-neg-in94.7%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \color{blue}{\left(z \cdot \left(-9\right)\right)} \cdot t\right)}{a \cdot 2} \]
      8. associate-*r*94.6%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \color{blue}{z \cdot \left(\left(-9\right) \cdot t\right)}\right)}{a \cdot 2} \]
      9. distribute-lft-neg-in94.6%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, z \cdot \color{blue}{\left(-9 \cdot t\right)}\right)}{a \cdot 2} \]
      10. *-commutative94.6%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, z \cdot \left(-\color{blue}{t \cdot 9}\right)\right)}{a \cdot 2} \]
      11. distribute-rgt-neg-in94.6%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, z \cdot \color{blue}{\left(t \cdot \left(-9\right)\right)}\right)}{a \cdot 2} \]
      12. metadata-eval94.6%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, z \cdot \left(t \cdot \color{blue}{-9}\right)\right)}{a \cdot 2} \]
    3. Simplified94.6%

      \[\leadsto \color{blue}{\frac{\mathsf{fma}\left(x, y, z \cdot \left(t \cdot -9\right)\right)}{a \cdot 2}} \]
    4. Add Preprocessing
    5. Step-by-step derivation
      1. *-commutative94.6%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, z \cdot \color{blue}{\left(-9 \cdot t\right)}\right)}{a \cdot 2} \]
      2. associate-*r*94.7%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \color{blue}{\left(z \cdot -9\right) \cdot t}\right)}{a \cdot 2} \]
      3. metadata-eval94.7%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \left(z \cdot \color{blue}{\left(-9\right)}\right) \cdot t\right)}{a \cdot 2} \]
      4. distribute-rgt-neg-in94.7%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \color{blue}{\left(-z \cdot 9\right)} \cdot t\right)}{a \cdot 2} \]
      5. distribute-lft-neg-in94.7%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \color{blue}{-\left(z \cdot 9\right) \cdot t}\right)}{a \cdot 2} \]
      6. fma-neg94.7%

        \[\leadsto \frac{\color{blue}{x \cdot y - \left(z \cdot 9\right) \cdot t}}{a \cdot 2} \]
      7. associate-*l*94.6%

        \[\leadsto \frac{x \cdot y - \color{blue}{z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
    6. Applied egg-rr94.6%

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

    if 1.00000000000000007e244 < (*.f64 (*.f64 z #s(literal 9 binary64)) t)

    1. Initial program 46.2%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Add Preprocessing
    3. Taylor expanded in x around 0 46.5%

      \[\leadsto \color{blue}{-4.5 \cdot \frac{t \cdot z}{a}} \]
    4. Step-by-step derivation
      1. associate-*r/46.5%

        \[\leadsto \color{blue}{\frac{-4.5 \cdot \left(t \cdot z\right)}{a}} \]
      2. *-commutative46.5%

        \[\leadsto \frac{-4.5 \cdot \color{blue}{\left(z \cdot t\right)}}{a} \]
      3. associate-*r*46.5%

        \[\leadsto \frac{\color{blue}{\left(-4.5 \cdot z\right) \cdot t}}{a} \]
      4. associate-*r/93.2%

        \[\leadsto \color{blue}{\left(-4.5 \cdot z\right) \cdot \frac{t}{a}} \]
      5. clear-num93.3%

        \[\leadsto \left(-4.5 \cdot z\right) \cdot \color{blue}{\frac{1}{\frac{a}{t}}} \]
      6. un-div-inv93.3%

        \[\leadsto \color{blue}{\frac{-4.5 \cdot z}{\frac{a}{t}}} \]
      7. *-commutative93.3%

        \[\leadsto \frac{\color{blue}{z \cdot -4.5}}{\frac{a}{t}} \]
    5. Applied egg-rr93.3%

      \[\leadsto \color{blue}{\frac{z \cdot -4.5}{\frac{a}{t}}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification94.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\left(z \cdot 9\right) \cdot t \leq -5 \cdot 10^{+289}:\\ \;\;\;\;t \cdot \left(\frac{z}{a} \cdot -4.5\right)\\ \mathbf{elif}\;\left(z \cdot 9\right) \cdot t \leq 10^{+244}:\\ \;\;\;\;\frac{x \cdot y - z \cdot \left(9 \cdot t\right)}{a \cdot 2}\\ \mathbf{else}:\\ \;\;\;\;\frac{z \cdot -4.5}{\frac{a}{t}}\\ \end{array} \]
  5. Add Preprocessing

Alternative 5: 74.6% accurate, 0.5× speedup?

\[\begin{array}{l} [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\ \\ \begin{array}{l} t_1 := x \cdot \frac{y \cdot 0.5}{a}\\ \mathbf{if}\;x \cdot y \leq -1.32 \cdot 10^{+45}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;x \cdot y \leq 2 \cdot 10^{-58}:\\ \;\;\;\;t \cdot \left(\frac{z}{a} \cdot -4.5\right)\\ \mathbf{elif}\;x \cdot y \leq 5 \cdot 10^{+228}:\\ \;\;\;\;\frac{0.5}{\frac{a}{x \cdot y}}\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
(FPCore (x y z t a)
 :precision binary64
 (let* ((t_1 (* x (/ (* y 0.5) a))))
   (if (<= (* x y) -1.32e+45)
     t_1
     (if (<= (* x y) 2e-58)
       (* t (* (/ z a) -4.5))
       (if (<= (* x y) 5e+228) (/ 0.5 (/ a (* x y))) t_1)))))
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 * 0.5) / a);
	double tmp;
	if ((x * y) <= -1.32e+45) {
		tmp = t_1;
	} else if ((x * y) <= 2e-58) {
		tmp = t * ((z / a) * -4.5);
	} else if ((x * y) <= 5e+228) {
		tmp = 0.5 / (a / (x * y));
	} else {
		tmp = t_1;
	}
	return tmp;
}
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 = x * ((y * 0.5d0) / a)
    if ((x * y) <= (-1.32d+45)) then
        tmp = t_1
    else if ((x * y) <= 2d-58) then
        tmp = t * ((z / a) * (-4.5d0))
    else if ((x * y) <= 5d+228) then
        tmp = 0.5d0 / (a / (x * y))
    else
        tmp = t_1
    end if
    code = tmp
end function
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 = x * ((y * 0.5) / a);
	double tmp;
	if ((x * y) <= -1.32e+45) {
		tmp = t_1;
	} else if ((x * y) <= 2e-58) {
		tmp = t * ((z / a) * -4.5);
	} else if ((x * y) <= 5e+228) {
		tmp = 0.5 / (a / (x * y));
	} else {
		tmp = t_1;
	}
	return tmp;
}
[x, y, z, t, a] = sort([x, y, z, t, a])
def code(x, y, z, t, a):
	t_1 = x * ((y * 0.5) / a)
	tmp = 0
	if (x * y) <= -1.32e+45:
		tmp = t_1
	elif (x * y) <= 2e-58:
		tmp = t * ((z / a) * -4.5)
	elif (x * y) <= 5e+228:
		tmp = 0.5 / (a / (x * y))
	else:
		tmp = t_1
	return tmp
x, y, z, t, a = sort([x, y, z, t, a])
function code(x, y, z, t, a)
	t_1 = Float64(x * Float64(Float64(y * 0.5) / a))
	tmp = 0.0
	if (Float64(x * y) <= -1.32e+45)
		tmp = t_1;
	elseif (Float64(x * y) <= 2e-58)
		tmp = Float64(t * Float64(Float64(z / a) * -4.5));
	elseif (Float64(x * y) <= 5e+228)
		tmp = Float64(0.5 / Float64(a / Float64(x * y)));
	else
		tmp = t_1;
	end
	return tmp
end
x, y, z, t, a = num2cell(sort([x, y, z, t, a])){:}
function tmp_2 = code(x, y, z, t, a)
	t_1 = x * ((y * 0.5) / a);
	tmp = 0.0;
	if ((x * y) <= -1.32e+45)
		tmp = t_1;
	elseif ((x * y) <= 2e-58)
		tmp = t * ((z / a) * -4.5);
	elseif ((x * y) <= 5e+228)
		tmp = 0.5 / (a / (x * y));
	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.
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(x * N[(N[(y * 0.5), $MachinePrecision] / a), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[N[(x * y), $MachinePrecision], -1.32e+45], t$95$1, If[LessEqual[N[(x * y), $MachinePrecision], 2e-58], N[(t * N[(N[(z / a), $MachinePrecision] * -4.5), $MachinePrecision]), $MachinePrecision], If[LessEqual[N[(x * y), $MachinePrecision], 5e+228], N[(0.5 / N[(a / N[(x * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]]
\begin{array}{l}
[x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\
\\
\begin{array}{l}
t_1 := x \cdot \frac{y \cdot 0.5}{a}\\
\mathbf{if}\;x \cdot y \leq -1.32 \cdot 10^{+45}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;x \cdot y \leq 2 \cdot 10^{-58}:\\
\;\;\;\;t \cdot \left(\frac{z}{a} \cdot -4.5\right)\\

\mathbf{elif}\;x \cdot y \leq 5 \cdot 10^{+228}:\\
\;\;\;\;\frac{0.5}{\frac{a}{x \cdot y}}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if (*.f64 x y) < -1.32000000000000005e45 or 5e228 < (*.f64 x y)

    1. Initial program 78.8%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 67.7%

      \[\leadsto \color{blue}{0.5 \cdot \frac{x \cdot y}{a}} \]
    4. Step-by-step derivation
      1. *-commutative67.7%

        \[\leadsto \color{blue}{\frac{x \cdot y}{a} \cdot 0.5} \]
      2. associate-/l*77.8%

        \[\leadsto \color{blue}{\left(x \cdot \frac{y}{a}\right)} \cdot 0.5 \]
      3. associate-*r*77.8%

        \[\leadsto \color{blue}{x \cdot \left(\frac{y}{a} \cdot 0.5\right)} \]
      4. *-commutative77.8%

        \[\leadsto x \cdot \color{blue}{\left(0.5 \cdot \frac{y}{a}\right)} \]
      5. associate-*r/77.8%

        \[\leadsto x \cdot \color{blue}{\frac{0.5 \cdot y}{a}} \]
    5. Simplified77.8%

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

    if -1.32000000000000005e45 < (*.f64 x y) < 2.0000000000000001e-58

    1. Initial program 92.0%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Add Preprocessing
    3. Taylor expanded in x around 0 74.4%

      \[\leadsto \frac{\color{blue}{-9 \cdot \left(t \cdot z\right)}}{a \cdot 2} \]
    4. Step-by-step derivation
      1. *-commutative74.4%

        \[\leadsto \frac{\color{blue}{\left(t \cdot z\right) \cdot -9}}{a \cdot 2} \]
      2. associate-*r*74.4%

        \[\leadsto \frac{\color{blue}{t \cdot \left(z \cdot -9\right)}}{a \cdot 2} \]
    5. Simplified74.4%

      \[\leadsto \frac{\color{blue}{t \cdot \left(z \cdot -9\right)}}{a \cdot 2} \]
    6. Step-by-step derivation
      1. associate-/l*75.9%

        \[\leadsto \color{blue}{t \cdot \frac{z \cdot -9}{a \cdot 2}} \]
      2. times-frac75.9%

        \[\leadsto t \cdot \color{blue}{\left(\frac{z}{a} \cdot \frac{-9}{2}\right)} \]
      3. metadata-eval75.9%

        \[\leadsto t \cdot \left(\frac{z}{a} \cdot \color{blue}{-4.5}\right) \]
    7. Applied egg-rr75.9%

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

    if 2.0000000000000001e-58 < (*.f64 x y) < 5e228

    1. Initial program 91.1%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Add Preprocessing
    3. Step-by-step derivation
      1. clear-num91.1%

        \[\leadsto \color{blue}{\frac{1}{\frac{a \cdot 2}{x \cdot y - \left(z \cdot 9\right) \cdot t}}} \]
      2. inv-pow91.1%

        \[\leadsto \color{blue}{{\left(\frac{a \cdot 2}{x \cdot y - \left(z \cdot 9\right) \cdot t}\right)}^{-1}} \]
      3. *-commutative91.1%

        \[\leadsto {\left(\frac{\color{blue}{2 \cdot a}}{x \cdot y - \left(z \cdot 9\right) \cdot t}\right)}^{-1} \]
      4. associate-/l*91.1%

        \[\leadsto {\color{blue}{\left(2 \cdot \frac{a}{x \cdot y - \left(z \cdot 9\right) \cdot t}\right)}}^{-1} \]
      5. fma-neg91.1%

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

        \[\leadsto {\left(2 \cdot \frac{a}{\mathsf{fma}\left(x, y, -\color{blue}{t \cdot \left(z \cdot 9\right)}\right)}\right)}^{-1} \]
      7. distribute-rgt-neg-in91.1%

        \[\leadsto {\left(2 \cdot \frac{a}{\mathsf{fma}\left(x, y, \color{blue}{t \cdot \left(-z \cdot 9\right)}\right)}\right)}^{-1} \]
      8. distribute-rgt-neg-in91.1%

        \[\leadsto {\left(2 \cdot \frac{a}{\mathsf{fma}\left(x, y, t \cdot \color{blue}{\left(z \cdot \left(-9\right)\right)}\right)}\right)}^{-1} \]
      9. metadata-eval91.1%

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

      \[\leadsto \color{blue}{{\left(2 \cdot \frac{a}{\mathsf{fma}\left(x, y, t \cdot \left(z \cdot -9\right)\right)}\right)}^{-1}} \]
    5. Step-by-step derivation
      1. unpow-191.1%

        \[\leadsto \color{blue}{\frac{1}{2 \cdot \frac{a}{\mathsf{fma}\left(x, y, t \cdot \left(z \cdot -9\right)\right)}}} \]
      2. associate-/r*91.1%

        \[\leadsto \color{blue}{\frac{\frac{1}{2}}{\frac{a}{\mathsf{fma}\left(x, y, t \cdot \left(z \cdot -9\right)\right)}}} \]
      3. metadata-eval91.1%

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

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{\left(t \cdot z\right) \cdot -9}\right)}} \]
      5. *-commutative91.2%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{-9 \cdot \left(t \cdot z\right)}\right)}} \]
      6. metadata-eval91.2%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{\left(-9\right)} \cdot \left(t \cdot z\right)\right)}} \]
      7. distribute-lft-neg-in91.2%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{-9 \cdot \left(t \cdot z\right)}\right)}} \]
      8. distribute-lft-neg-in91.2%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{\left(-9\right) \cdot \left(t \cdot z\right)}\right)}} \]
      9. metadata-eval91.2%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{-9} \cdot \left(t \cdot z\right)\right)}} \]
      10. associate-*r*91.1%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{\left(-9 \cdot t\right) \cdot z}\right)}} \]
      11. *-commutative91.1%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{z \cdot \left(-9 \cdot t\right)}\right)}} \]
      12. *-commutative91.1%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, z \cdot \color{blue}{\left(t \cdot -9\right)}\right)}} \]
    6. Simplified91.1%

      \[\leadsto \color{blue}{\frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, z \cdot \left(t \cdot -9\right)\right)}}} \]
    7. Taylor expanded in x around inf 70.1%

      \[\leadsto \frac{0.5}{\color{blue}{\frac{a}{x \cdot y}}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification75.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \cdot y \leq -1.32 \cdot 10^{+45}:\\ \;\;\;\;x \cdot \frac{y \cdot 0.5}{a}\\ \mathbf{elif}\;x \cdot y \leq 2 \cdot 10^{-58}:\\ \;\;\;\;t \cdot \left(\frac{z}{a} \cdot -4.5\right)\\ \mathbf{elif}\;x \cdot y \leq 5 \cdot 10^{+228}:\\ \;\;\;\;\frac{0.5}{\frac{a}{x \cdot y}}\\ \mathbf{else}:\\ \;\;\;\;x \cdot \frac{y \cdot 0.5}{a}\\ \end{array} \]
  5. Add Preprocessing

Alternative 6: 74.5% accurate, 0.5× speedup?

\[\begin{array}{l} [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\ \\ \begin{array}{l} \mathbf{if}\;x \cdot y \leq -1.32 \cdot 10^{+45}:\\ \;\;\;\;\frac{x}{\frac{a}{y \cdot 0.5}}\\ \mathbf{elif}\;x \cdot y \leq 2 \cdot 10^{-58}:\\ \;\;\;\;t \cdot \left(\frac{z}{a} \cdot -4.5\right)\\ \mathbf{elif}\;x \cdot y \leq 5 \cdot 10^{+228}:\\ \;\;\;\;\frac{0.5}{\frac{a}{x \cdot y}}\\ \mathbf{else}:\\ \;\;\;\;x \cdot \frac{y \cdot 0.5}{a}\\ \end{array} \end{array} \]
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) -1.32e+45)
   (/ x (/ a (* y 0.5)))
   (if (<= (* x y) 2e-58)
     (* t (* (/ z a) -4.5))
     (if (<= (* x y) 5e+228) (/ 0.5 (/ a (* x y))) (* x (/ (* y 0.5) 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) <= -1.32e+45) {
		tmp = x / (a / (y * 0.5));
	} else if ((x * y) <= 2e-58) {
		tmp = t * ((z / a) * -4.5);
	} else if ((x * y) <= 5e+228) {
		tmp = 0.5 / (a / (x * y));
	} else {
		tmp = x * ((y * 0.5) / a);
	}
	return tmp;
}
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) <= (-1.32d+45)) then
        tmp = x / (a / (y * 0.5d0))
    else if ((x * y) <= 2d-58) then
        tmp = t * ((z / a) * (-4.5d0))
    else if ((x * y) <= 5d+228) then
        tmp = 0.5d0 / (a / (x * y))
    else
        tmp = x * ((y * 0.5d0) / a)
    end if
    code = tmp
end function
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) <= -1.32e+45) {
		tmp = x / (a / (y * 0.5));
	} else if ((x * y) <= 2e-58) {
		tmp = t * ((z / a) * -4.5);
	} else if ((x * y) <= 5e+228) {
		tmp = 0.5 / (a / (x * y));
	} else {
		tmp = x * ((y * 0.5) / a);
	}
	return tmp;
}
[x, y, z, t, a] = sort([x, y, z, t, a])
def code(x, y, z, t, a):
	tmp = 0
	if (x * y) <= -1.32e+45:
		tmp = x / (a / (y * 0.5))
	elif (x * y) <= 2e-58:
		tmp = t * ((z / a) * -4.5)
	elif (x * y) <= 5e+228:
		tmp = 0.5 / (a / (x * y))
	else:
		tmp = x * ((y * 0.5) / a)
	return tmp
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) <= -1.32e+45)
		tmp = Float64(x / Float64(a / Float64(y * 0.5)));
	elseif (Float64(x * y) <= 2e-58)
		tmp = Float64(t * Float64(Float64(z / a) * -4.5));
	elseif (Float64(x * y) <= 5e+228)
		tmp = Float64(0.5 / Float64(a / Float64(x * y)));
	else
		tmp = Float64(x * Float64(Float64(y * 0.5) / a));
	end
	return tmp
end
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) <= -1.32e+45)
		tmp = x / (a / (y * 0.5));
	elseif ((x * y) <= 2e-58)
		tmp = t * ((z / a) * -4.5);
	elseif ((x * y) <= 5e+228)
		tmp = 0.5 / (a / (x * y));
	else
		tmp = x * ((y * 0.5) / a);
	end
	tmp_2 = tmp;
end
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], -1.32e+45], N[(x / N[(a / N[(y * 0.5), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[N[(x * y), $MachinePrecision], 2e-58], N[(t * N[(N[(z / a), $MachinePrecision] * -4.5), $MachinePrecision]), $MachinePrecision], If[LessEqual[N[(x * y), $MachinePrecision], 5e+228], N[(0.5 / N[(a / N[(x * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x * N[(N[(y * 0.5), $MachinePrecision] / a), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}
[x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\
\\
\begin{array}{l}
\mathbf{if}\;x \cdot y \leq -1.32 \cdot 10^{+45}:\\
\;\;\;\;\frac{x}{\frac{a}{y \cdot 0.5}}\\

\mathbf{elif}\;x \cdot y \leq 2 \cdot 10^{-58}:\\
\;\;\;\;t \cdot \left(\frac{z}{a} \cdot -4.5\right)\\

\mathbf{elif}\;x \cdot y \leq 5 \cdot 10^{+228}:\\
\;\;\;\;\frac{0.5}{\frac{a}{x \cdot y}}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if (*.f64 x y) < -1.32000000000000005e45

    1. Initial program 83.1%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 65.4%

      \[\leadsto \color{blue}{0.5 \cdot \frac{x \cdot y}{a}} \]
    4. Step-by-step derivation
      1. *-commutative65.4%

        \[\leadsto \color{blue}{\frac{x \cdot y}{a} \cdot 0.5} \]
      2. associate-/l*68.9%

        \[\leadsto \color{blue}{\left(x \cdot \frac{y}{a}\right)} \cdot 0.5 \]
      3. associate-*r*68.9%

        \[\leadsto \color{blue}{x \cdot \left(\frac{y}{a} \cdot 0.5\right)} \]
      4. *-commutative68.9%

        \[\leadsto x \cdot \color{blue}{\left(0.5 \cdot \frac{y}{a}\right)} \]
      5. associate-*r/68.9%

        \[\leadsto x \cdot \color{blue}{\frac{0.5 \cdot y}{a}} \]
    5. Simplified68.9%

      \[\leadsto \color{blue}{x \cdot \frac{0.5 \cdot y}{a}} \]
    6. Step-by-step derivation
      1. clear-num68.8%

        \[\leadsto x \cdot \color{blue}{\frac{1}{\frac{a}{0.5 \cdot y}}} \]
      2. un-div-inv69.0%

        \[\leadsto \color{blue}{\frac{x}{\frac{a}{0.5 \cdot y}}} \]
      3. *-commutative69.0%

        \[\leadsto \frac{x}{\frac{a}{\color{blue}{y \cdot 0.5}}} \]
    7. Applied egg-rr69.0%

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

    if -1.32000000000000005e45 < (*.f64 x y) < 2.0000000000000001e-58

    1. Initial program 92.0%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Add Preprocessing
    3. Taylor expanded in x around 0 74.4%

      \[\leadsto \frac{\color{blue}{-9 \cdot \left(t \cdot z\right)}}{a \cdot 2} \]
    4. Step-by-step derivation
      1. *-commutative74.4%

        \[\leadsto \frac{\color{blue}{\left(t \cdot z\right) \cdot -9}}{a \cdot 2} \]
      2. associate-*r*74.4%

        \[\leadsto \frac{\color{blue}{t \cdot \left(z \cdot -9\right)}}{a \cdot 2} \]
    5. Simplified74.4%

      \[\leadsto \frac{\color{blue}{t \cdot \left(z \cdot -9\right)}}{a \cdot 2} \]
    6. Step-by-step derivation
      1. associate-/l*75.9%

        \[\leadsto \color{blue}{t \cdot \frac{z \cdot -9}{a \cdot 2}} \]
      2. times-frac75.9%

        \[\leadsto t \cdot \color{blue}{\left(\frac{z}{a} \cdot \frac{-9}{2}\right)} \]
      3. metadata-eval75.9%

        \[\leadsto t \cdot \left(\frac{z}{a} \cdot \color{blue}{-4.5}\right) \]
    7. Applied egg-rr75.9%

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

    if 2.0000000000000001e-58 < (*.f64 x y) < 5e228

    1. Initial program 91.1%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Add Preprocessing
    3. Step-by-step derivation
      1. clear-num91.1%

        \[\leadsto \color{blue}{\frac{1}{\frac{a \cdot 2}{x \cdot y - \left(z \cdot 9\right) \cdot t}}} \]
      2. inv-pow91.1%

        \[\leadsto \color{blue}{{\left(\frac{a \cdot 2}{x \cdot y - \left(z \cdot 9\right) \cdot t}\right)}^{-1}} \]
      3. *-commutative91.1%

        \[\leadsto {\left(\frac{\color{blue}{2 \cdot a}}{x \cdot y - \left(z \cdot 9\right) \cdot t}\right)}^{-1} \]
      4. associate-/l*91.1%

        \[\leadsto {\color{blue}{\left(2 \cdot \frac{a}{x \cdot y - \left(z \cdot 9\right) \cdot t}\right)}}^{-1} \]
      5. fma-neg91.1%

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

        \[\leadsto {\left(2 \cdot \frac{a}{\mathsf{fma}\left(x, y, -\color{blue}{t \cdot \left(z \cdot 9\right)}\right)}\right)}^{-1} \]
      7. distribute-rgt-neg-in91.1%

        \[\leadsto {\left(2 \cdot \frac{a}{\mathsf{fma}\left(x, y, \color{blue}{t \cdot \left(-z \cdot 9\right)}\right)}\right)}^{-1} \]
      8. distribute-rgt-neg-in91.1%

        \[\leadsto {\left(2 \cdot \frac{a}{\mathsf{fma}\left(x, y, t \cdot \color{blue}{\left(z \cdot \left(-9\right)\right)}\right)}\right)}^{-1} \]
      9. metadata-eval91.1%

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

      \[\leadsto \color{blue}{{\left(2 \cdot \frac{a}{\mathsf{fma}\left(x, y, t \cdot \left(z \cdot -9\right)\right)}\right)}^{-1}} \]
    5. Step-by-step derivation
      1. unpow-191.1%

        \[\leadsto \color{blue}{\frac{1}{2 \cdot \frac{a}{\mathsf{fma}\left(x, y, t \cdot \left(z \cdot -9\right)\right)}}} \]
      2. associate-/r*91.1%

        \[\leadsto \color{blue}{\frac{\frac{1}{2}}{\frac{a}{\mathsf{fma}\left(x, y, t \cdot \left(z \cdot -9\right)\right)}}} \]
      3. metadata-eval91.1%

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

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{\left(t \cdot z\right) \cdot -9}\right)}} \]
      5. *-commutative91.2%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{-9 \cdot \left(t \cdot z\right)}\right)}} \]
      6. metadata-eval91.2%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{\left(-9\right)} \cdot \left(t \cdot z\right)\right)}} \]
      7. distribute-lft-neg-in91.2%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{-9 \cdot \left(t \cdot z\right)}\right)}} \]
      8. distribute-lft-neg-in91.2%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{\left(-9\right) \cdot \left(t \cdot z\right)}\right)}} \]
      9. metadata-eval91.2%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{-9} \cdot \left(t \cdot z\right)\right)}} \]
      10. associate-*r*91.1%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{\left(-9 \cdot t\right) \cdot z}\right)}} \]
      11. *-commutative91.1%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{z \cdot \left(-9 \cdot t\right)}\right)}} \]
      12. *-commutative91.1%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, z \cdot \color{blue}{\left(t \cdot -9\right)}\right)}} \]
    6. Simplified91.1%

      \[\leadsto \color{blue}{\frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, z \cdot \left(t \cdot -9\right)\right)}}} \]
    7. Taylor expanded in x around inf 70.1%

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

    if 5e228 < (*.f64 x y)

    1. Initial program 71.6%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 71.6%

      \[\leadsto \color{blue}{0.5 \cdot \frac{x \cdot y}{a}} \]
    4. Step-by-step derivation
      1. *-commutative71.6%

        \[\leadsto \color{blue}{\frac{x \cdot y}{a} \cdot 0.5} \]
      2. associate-/l*92.6%

        \[\leadsto \color{blue}{\left(x \cdot \frac{y}{a}\right)} \cdot 0.5 \]
      3. associate-*r*92.6%

        \[\leadsto \color{blue}{x \cdot \left(\frac{y}{a} \cdot 0.5\right)} \]
      4. *-commutative92.6%

        \[\leadsto x \cdot \color{blue}{\left(0.5 \cdot \frac{y}{a}\right)} \]
      5. associate-*r/92.6%

        \[\leadsto x \cdot \color{blue}{\frac{0.5 \cdot y}{a}} \]
    5. Simplified92.6%

      \[\leadsto \color{blue}{x \cdot \frac{0.5 \cdot y}{a}} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification75.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \cdot y \leq -1.32 \cdot 10^{+45}:\\ \;\;\;\;\frac{x}{\frac{a}{y \cdot 0.5}}\\ \mathbf{elif}\;x \cdot y \leq 2 \cdot 10^{-58}:\\ \;\;\;\;t \cdot \left(\frac{z}{a} \cdot -4.5\right)\\ \mathbf{elif}\;x \cdot y \leq 5 \cdot 10^{+228}:\\ \;\;\;\;\frac{0.5}{\frac{a}{x \cdot y}}\\ \mathbf{else}:\\ \;\;\;\;x \cdot \frac{y \cdot 0.5}{a}\\ \end{array} \]
  5. Add Preprocessing

Alternative 7: 74.4% accurate, 0.5× speedup?

\[\begin{array}{l} [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\ \\ \begin{array}{l} \mathbf{if}\;x \cdot y \leq -1 \cdot 10^{+45}:\\ \;\;\;\;\frac{y \cdot \frac{x}{a}}{2}\\ \mathbf{elif}\;x \cdot y \leq 2 \cdot 10^{-58}:\\ \;\;\;\;t \cdot \left(\frac{z}{a} \cdot -4.5\right)\\ \mathbf{elif}\;x \cdot y \leq 5 \cdot 10^{+228}:\\ \;\;\;\;\frac{0.5}{\frac{a}{x \cdot y}}\\ \mathbf{else}:\\ \;\;\;\;x \cdot \frac{y \cdot 0.5}{a}\\ \end{array} \end{array} \]
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) -1e+45)
   (/ (* y (/ x a)) 2.0)
   (if (<= (* x y) 2e-58)
     (* t (* (/ z a) -4.5))
     (if (<= (* x y) 5e+228) (/ 0.5 (/ a (* x y))) (* x (/ (* y 0.5) 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) <= -1e+45) {
		tmp = (y * (x / a)) / 2.0;
	} else if ((x * y) <= 2e-58) {
		tmp = t * ((z / a) * -4.5);
	} else if ((x * y) <= 5e+228) {
		tmp = 0.5 / (a / (x * y));
	} else {
		tmp = x * ((y * 0.5) / a);
	}
	return tmp;
}
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) <= (-1d+45)) then
        tmp = (y * (x / a)) / 2.0d0
    else if ((x * y) <= 2d-58) then
        tmp = t * ((z / a) * (-4.5d0))
    else if ((x * y) <= 5d+228) then
        tmp = 0.5d0 / (a / (x * y))
    else
        tmp = x * ((y * 0.5d0) / a)
    end if
    code = tmp
end function
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) <= -1e+45) {
		tmp = (y * (x / a)) / 2.0;
	} else if ((x * y) <= 2e-58) {
		tmp = t * ((z / a) * -4.5);
	} else if ((x * y) <= 5e+228) {
		tmp = 0.5 / (a / (x * y));
	} else {
		tmp = x * ((y * 0.5) / a);
	}
	return tmp;
}
[x, y, z, t, a] = sort([x, y, z, t, a])
def code(x, y, z, t, a):
	tmp = 0
	if (x * y) <= -1e+45:
		tmp = (y * (x / a)) / 2.0
	elif (x * y) <= 2e-58:
		tmp = t * ((z / a) * -4.5)
	elif (x * y) <= 5e+228:
		tmp = 0.5 / (a / (x * y))
	else:
		tmp = x * ((y * 0.5) / a)
	return tmp
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) <= -1e+45)
		tmp = Float64(Float64(y * Float64(x / a)) / 2.0);
	elseif (Float64(x * y) <= 2e-58)
		tmp = Float64(t * Float64(Float64(z / a) * -4.5));
	elseif (Float64(x * y) <= 5e+228)
		tmp = Float64(0.5 / Float64(a / Float64(x * y)));
	else
		tmp = Float64(x * Float64(Float64(y * 0.5) / a));
	end
	return tmp
end
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) <= -1e+45)
		tmp = (y * (x / a)) / 2.0;
	elseif ((x * y) <= 2e-58)
		tmp = t * ((z / a) * -4.5);
	elseif ((x * y) <= 5e+228)
		tmp = 0.5 / (a / (x * y));
	else
		tmp = x * ((y * 0.5) / a);
	end
	tmp_2 = tmp;
end
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], -1e+45], N[(N[(y * N[(x / a), $MachinePrecision]), $MachinePrecision] / 2.0), $MachinePrecision], If[LessEqual[N[(x * y), $MachinePrecision], 2e-58], N[(t * N[(N[(z / a), $MachinePrecision] * -4.5), $MachinePrecision]), $MachinePrecision], If[LessEqual[N[(x * y), $MachinePrecision], 5e+228], N[(0.5 / N[(a / N[(x * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x * N[(N[(y * 0.5), $MachinePrecision] / a), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}
[x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\
\\
\begin{array}{l}
\mathbf{if}\;x \cdot y \leq -1 \cdot 10^{+45}:\\
\;\;\;\;\frac{y \cdot \frac{x}{a}}{2}\\

\mathbf{elif}\;x \cdot y \leq 2 \cdot 10^{-58}:\\
\;\;\;\;t \cdot \left(\frac{z}{a} \cdot -4.5\right)\\

\mathbf{elif}\;x \cdot y \leq 5 \cdot 10^{+228}:\\
\;\;\;\;\frac{0.5}{\frac{a}{x \cdot y}}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if (*.f64 x y) < -9.9999999999999993e44

    1. Initial program 83.4%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 66.1%

      \[\leadsto \color{blue}{0.5 \cdot \frac{x \cdot y}{a}} \]
    4. Step-by-step derivation
      1. *-commutative66.1%

        \[\leadsto \color{blue}{\frac{x \cdot y}{a} \cdot 0.5} \]
      2. associate-/l*67.5%

        \[\leadsto \color{blue}{\left(x \cdot \frac{y}{a}\right)} \cdot 0.5 \]
      3. associate-*r*67.5%

        \[\leadsto \color{blue}{x \cdot \left(\frac{y}{a} \cdot 0.5\right)} \]
      4. *-commutative67.5%

        \[\leadsto x \cdot \color{blue}{\left(0.5 \cdot \frac{y}{a}\right)} \]
      5. associate-*r/67.5%

        \[\leadsto x \cdot \color{blue}{\frac{0.5 \cdot y}{a}} \]
    5. Simplified67.5%

      \[\leadsto \color{blue}{x \cdot \frac{0.5 \cdot y}{a}} \]
    6. Step-by-step derivation
      1. associate-*r/66.1%

        \[\leadsto \color{blue}{\frac{x \cdot \left(0.5 \cdot y\right)}{a}} \]
      2. associate-*l/75.3%

        \[\leadsto \color{blue}{\frac{x}{a} \cdot \left(0.5 \cdot y\right)} \]
      3. *-commutative75.3%

        \[\leadsto \frac{x}{a} \cdot \color{blue}{\left(y \cdot 0.5\right)} \]
      4. metadata-eval75.3%

        \[\leadsto \frac{x}{a} \cdot \left(y \cdot \color{blue}{\frac{1}{2}}\right) \]
      5. div-inv75.3%

        \[\leadsto \frac{x}{a} \cdot \color{blue}{\frac{y}{2}} \]
      6. associate-*r/75.3%

        \[\leadsto \color{blue}{\frac{\frac{x}{a} \cdot y}{2}} \]
    7. Applied egg-rr75.3%

      \[\leadsto \color{blue}{\frac{\frac{x}{a} \cdot y}{2}} \]

    if -9.9999999999999993e44 < (*.f64 x y) < 2.0000000000000001e-58

    1. Initial program 92.0%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Add Preprocessing
    3. Taylor expanded in x around 0 74.9%

      \[\leadsto \frac{\color{blue}{-9 \cdot \left(t \cdot z\right)}}{a \cdot 2} \]
    4. Step-by-step derivation
      1. *-commutative74.9%

        \[\leadsto \frac{\color{blue}{\left(t \cdot z\right) \cdot -9}}{a \cdot 2} \]
      2. associate-*r*75.0%

        \[\leadsto \frac{\color{blue}{t \cdot \left(z \cdot -9\right)}}{a \cdot 2} \]
    5. Simplified75.0%

      \[\leadsto \frac{\color{blue}{t \cdot \left(z \cdot -9\right)}}{a \cdot 2} \]
    6. Step-by-step derivation
      1. associate-/l*76.4%

        \[\leadsto \color{blue}{t \cdot \frac{z \cdot -9}{a \cdot 2}} \]
      2. times-frac76.4%

        \[\leadsto t \cdot \color{blue}{\left(\frac{z}{a} \cdot \frac{-9}{2}\right)} \]
      3. metadata-eval76.4%

        \[\leadsto t \cdot \left(\frac{z}{a} \cdot \color{blue}{-4.5}\right) \]
    7. Applied egg-rr76.4%

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

    if 2.0000000000000001e-58 < (*.f64 x y) < 5e228

    1. Initial program 91.1%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Add Preprocessing
    3. Step-by-step derivation
      1. clear-num91.1%

        \[\leadsto \color{blue}{\frac{1}{\frac{a \cdot 2}{x \cdot y - \left(z \cdot 9\right) \cdot t}}} \]
      2. inv-pow91.1%

        \[\leadsto \color{blue}{{\left(\frac{a \cdot 2}{x \cdot y - \left(z \cdot 9\right) \cdot t}\right)}^{-1}} \]
      3. *-commutative91.1%

        \[\leadsto {\left(\frac{\color{blue}{2 \cdot a}}{x \cdot y - \left(z \cdot 9\right) \cdot t}\right)}^{-1} \]
      4. associate-/l*91.1%

        \[\leadsto {\color{blue}{\left(2 \cdot \frac{a}{x \cdot y - \left(z \cdot 9\right) \cdot t}\right)}}^{-1} \]
      5. fma-neg91.1%

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

        \[\leadsto {\left(2 \cdot \frac{a}{\mathsf{fma}\left(x, y, -\color{blue}{t \cdot \left(z \cdot 9\right)}\right)}\right)}^{-1} \]
      7. distribute-rgt-neg-in91.1%

        \[\leadsto {\left(2 \cdot \frac{a}{\mathsf{fma}\left(x, y, \color{blue}{t \cdot \left(-z \cdot 9\right)}\right)}\right)}^{-1} \]
      8. distribute-rgt-neg-in91.1%

        \[\leadsto {\left(2 \cdot \frac{a}{\mathsf{fma}\left(x, y, t \cdot \color{blue}{\left(z \cdot \left(-9\right)\right)}\right)}\right)}^{-1} \]
      9. metadata-eval91.1%

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

      \[\leadsto \color{blue}{{\left(2 \cdot \frac{a}{\mathsf{fma}\left(x, y, t \cdot \left(z \cdot -9\right)\right)}\right)}^{-1}} \]
    5. Step-by-step derivation
      1. unpow-191.1%

        \[\leadsto \color{blue}{\frac{1}{2 \cdot \frac{a}{\mathsf{fma}\left(x, y, t \cdot \left(z \cdot -9\right)\right)}}} \]
      2. associate-/r*91.1%

        \[\leadsto \color{blue}{\frac{\frac{1}{2}}{\frac{a}{\mathsf{fma}\left(x, y, t \cdot \left(z \cdot -9\right)\right)}}} \]
      3. metadata-eval91.1%

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

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{\left(t \cdot z\right) \cdot -9}\right)}} \]
      5. *-commutative91.2%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{-9 \cdot \left(t \cdot z\right)}\right)}} \]
      6. metadata-eval91.2%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{\left(-9\right)} \cdot \left(t \cdot z\right)\right)}} \]
      7. distribute-lft-neg-in91.2%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{-9 \cdot \left(t \cdot z\right)}\right)}} \]
      8. distribute-lft-neg-in91.2%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{\left(-9\right) \cdot \left(t \cdot z\right)}\right)}} \]
      9. metadata-eval91.2%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{-9} \cdot \left(t \cdot z\right)\right)}} \]
      10. associate-*r*91.1%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{\left(-9 \cdot t\right) \cdot z}\right)}} \]
      11. *-commutative91.1%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{z \cdot \left(-9 \cdot t\right)}\right)}} \]
      12. *-commutative91.1%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, z \cdot \color{blue}{\left(t \cdot -9\right)}\right)}} \]
    6. Simplified91.1%

      \[\leadsto \color{blue}{\frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, z \cdot \left(t \cdot -9\right)\right)}}} \]
    7. Taylor expanded in x around inf 70.1%

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

    if 5e228 < (*.f64 x y)

    1. Initial program 71.6%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 71.6%

      \[\leadsto \color{blue}{0.5 \cdot \frac{x \cdot y}{a}} \]
    4. Step-by-step derivation
      1. *-commutative71.6%

        \[\leadsto \color{blue}{\frac{x \cdot y}{a} \cdot 0.5} \]
      2. associate-/l*92.6%

        \[\leadsto \color{blue}{\left(x \cdot \frac{y}{a}\right)} \cdot 0.5 \]
      3. associate-*r*92.6%

        \[\leadsto \color{blue}{x \cdot \left(\frac{y}{a} \cdot 0.5\right)} \]
      4. *-commutative92.6%

        \[\leadsto x \cdot \color{blue}{\left(0.5 \cdot \frac{y}{a}\right)} \]
      5. associate-*r/92.6%

        \[\leadsto x \cdot \color{blue}{\frac{0.5 \cdot y}{a}} \]
    5. Simplified92.6%

      \[\leadsto \color{blue}{x \cdot \frac{0.5 \cdot y}{a}} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification76.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \cdot y \leq -1 \cdot 10^{+45}:\\ \;\;\;\;\frac{y \cdot \frac{x}{a}}{2}\\ \mathbf{elif}\;x \cdot y \leq 2 \cdot 10^{-58}:\\ \;\;\;\;t \cdot \left(\frac{z}{a} \cdot -4.5\right)\\ \mathbf{elif}\;x \cdot y \leq 5 \cdot 10^{+228}:\\ \;\;\;\;\frac{0.5}{\frac{a}{x \cdot y}}\\ \mathbf{else}:\\ \;\;\;\;x \cdot \frac{y \cdot 0.5}{a}\\ \end{array} \]
  5. Add Preprocessing

Alternative 8: 93.0% accurate, 0.6× speedup?

\[\begin{array}{l} [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\ \\ \begin{array}{l} \mathbf{if}\;x \cdot y \leq 5 \cdot 10^{+280}:\\ \;\;\;\;\frac{0.5}{\frac{a}{x \cdot y - z \cdot \left(9 \cdot t\right)}}\\ \mathbf{else}:\\ \;\;\;\;x \cdot \frac{y \cdot 0.5}{a}\\ \end{array} \end{array} \]
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) 5e+280)
   (/ 0.5 (/ a (- (* x y) (* z (* 9.0 t)))))
   (* x (/ (* y 0.5) 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) <= 5e+280) {
		tmp = 0.5 / (a / ((x * y) - (z * (9.0 * t))));
	} else {
		tmp = x * ((y * 0.5) / a);
	}
	return tmp;
}
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) <= 5d+280) then
        tmp = 0.5d0 / (a / ((x * y) - (z * (9.0d0 * t))))
    else
        tmp = x * ((y * 0.5d0) / a)
    end if
    code = tmp
end function
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) <= 5e+280) {
		tmp = 0.5 / (a / ((x * y) - (z * (9.0 * t))));
	} else {
		tmp = x * ((y * 0.5) / a);
	}
	return tmp;
}
[x, y, z, t, a] = sort([x, y, z, t, a])
def code(x, y, z, t, a):
	tmp = 0
	if (x * y) <= 5e+280:
		tmp = 0.5 / (a / ((x * y) - (z * (9.0 * t))))
	else:
		tmp = x * ((y * 0.5) / a)
	return tmp
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) <= 5e+280)
		tmp = Float64(0.5 / Float64(a / Float64(Float64(x * y) - Float64(z * Float64(9.0 * t)))));
	else
		tmp = Float64(x * Float64(Float64(y * 0.5) / a));
	end
	return tmp
end
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) <= 5e+280)
		tmp = 0.5 / (a / ((x * y) - (z * (9.0 * t))));
	else
		tmp = x * ((y * 0.5) / a);
	end
	tmp_2 = tmp;
end
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], 5e+280], N[(0.5 / N[(a / N[(N[(x * y), $MachinePrecision] - N[(z * N[(9.0 * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x * N[(N[(y * 0.5), $MachinePrecision] / a), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
[x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\
\\
\begin{array}{l}
\mathbf{if}\;x \cdot y \leq 5 \cdot 10^{+280}:\\
\;\;\;\;\frac{0.5}{\frac{a}{x \cdot y - z \cdot \left(9 \cdot t\right)}}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (*.f64 x y) < 5.0000000000000002e280

    1. Initial program 90.3%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Add Preprocessing
    3. Step-by-step derivation
      1. clear-num90.3%

        \[\leadsto \color{blue}{\frac{1}{\frac{a \cdot 2}{x \cdot y - \left(z \cdot 9\right) \cdot t}}} \]
      2. inv-pow90.3%

        \[\leadsto \color{blue}{{\left(\frac{a \cdot 2}{x \cdot y - \left(z \cdot 9\right) \cdot t}\right)}^{-1}} \]
      3. *-commutative90.3%

        \[\leadsto {\left(\frac{\color{blue}{2 \cdot a}}{x \cdot y - \left(z \cdot 9\right) \cdot t}\right)}^{-1} \]
      4. associate-/l*90.3%

        \[\leadsto {\color{blue}{\left(2 \cdot \frac{a}{x \cdot y - \left(z \cdot 9\right) \cdot t}\right)}}^{-1} \]
      5. fma-neg90.3%

        \[\leadsto {\left(2 \cdot \frac{a}{\color{blue}{\mathsf{fma}\left(x, y, -\left(z \cdot 9\right) \cdot t\right)}}\right)}^{-1} \]
      6. *-commutative90.3%

        \[\leadsto {\left(2 \cdot \frac{a}{\mathsf{fma}\left(x, y, -\color{blue}{t \cdot \left(z \cdot 9\right)}\right)}\right)}^{-1} \]
      7. distribute-rgt-neg-in90.3%

        \[\leadsto {\left(2 \cdot \frac{a}{\mathsf{fma}\left(x, y, \color{blue}{t \cdot \left(-z \cdot 9\right)}\right)}\right)}^{-1} \]
      8. distribute-rgt-neg-in90.3%

        \[\leadsto {\left(2 \cdot \frac{a}{\mathsf{fma}\left(x, y, t \cdot \color{blue}{\left(z \cdot \left(-9\right)\right)}\right)}\right)}^{-1} \]
      9. metadata-eval90.3%

        \[\leadsto {\left(2 \cdot \frac{a}{\mathsf{fma}\left(x, y, t \cdot \left(z \cdot \color{blue}{-9}\right)\right)}\right)}^{-1} \]
    4. Applied egg-rr90.3%

      \[\leadsto \color{blue}{{\left(2 \cdot \frac{a}{\mathsf{fma}\left(x, y, t \cdot \left(z \cdot -9\right)\right)}\right)}^{-1}} \]
    5. Step-by-step derivation
      1. unpow-190.3%

        \[\leadsto \color{blue}{\frac{1}{2 \cdot \frac{a}{\mathsf{fma}\left(x, y, t \cdot \left(z \cdot -9\right)\right)}}} \]
      2. associate-/r*90.3%

        \[\leadsto \color{blue}{\frac{\frac{1}{2}}{\frac{a}{\mathsf{fma}\left(x, y, t \cdot \left(z \cdot -9\right)\right)}}} \]
      3. metadata-eval90.3%

        \[\leadsto \frac{\color{blue}{0.5}}{\frac{a}{\mathsf{fma}\left(x, y, t \cdot \left(z \cdot -9\right)\right)}} \]
      4. associate-*r*90.3%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{\left(t \cdot z\right) \cdot -9}\right)}} \]
      5. *-commutative90.3%

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

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{\left(-9\right)} \cdot \left(t \cdot z\right)\right)}} \]
      7. distribute-lft-neg-in90.3%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{-9 \cdot \left(t \cdot z\right)}\right)}} \]
      8. distribute-lft-neg-in90.3%

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

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{-9} \cdot \left(t \cdot z\right)\right)}} \]
      10. associate-*r*90.2%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{\left(-9 \cdot t\right) \cdot z}\right)}} \]
      11. *-commutative90.2%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, \color{blue}{z \cdot \left(-9 \cdot t\right)}\right)}} \]
      12. *-commutative90.2%

        \[\leadsto \frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, z \cdot \color{blue}{\left(t \cdot -9\right)}\right)}} \]
    6. Simplified90.2%

      \[\leadsto \color{blue}{\frac{0.5}{\frac{a}{\mathsf{fma}\left(x, y, z \cdot \left(t \cdot -9\right)\right)}}} \]
    7. Step-by-step derivation
      1. *-commutative90.2%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, z \cdot \color{blue}{\left(-9 \cdot t\right)}\right)}{a \cdot 2} \]
      2. associate-*r*90.3%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \color{blue}{\left(z \cdot -9\right) \cdot t}\right)}{a \cdot 2} \]
      3. metadata-eval90.3%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \left(z \cdot \color{blue}{\left(-9\right)}\right) \cdot t\right)}{a \cdot 2} \]
      4. distribute-rgt-neg-in90.3%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \color{blue}{\left(-z \cdot 9\right)} \cdot t\right)}{a \cdot 2} \]
      5. distribute-lft-neg-in90.3%

        \[\leadsto \frac{\mathsf{fma}\left(x, y, \color{blue}{-\left(z \cdot 9\right) \cdot t}\right)}{a \cdot 2} \]
      6. fma-neg90.3%

        \[\leadsto \frac{\color{blue}{x \cdot y - \left(z \cdot 9\right) \cdot t}}{a \cdot 2} \]
      7. associate-*l*90.2%

        \[\leadsto \frac{x \cdot y - \color{blue}{z \cdot \left(9 \cdot t\right)}}{a \cdot 2} \]
    8. Applied egg-rr90.2%

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

    if 5.0000000000000002e280 < (*.f64 x y)

    1. Initial program 63.5%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 68.3%

      \[\leadsto \color{blue}{0.5 \cdot \frac{x \cdot y}{a}} \]
    4. Step-by-step derivation
      1. *-commutative68.3%

        \[\leadsto \color{blue}{\frac{x \cdot y}{a} \cdot 0.5} \]
      2. associate-/l*95.3%

        \[\leadsto \color{blue}{\left(x \cdot \frac{y}{a}\right)} \cdot 0.5 \]
      3. associate-*r*95.3%

        \[\leadsto \color{blue}{x \cdot \left(\frac{y}{a} \cdot 0.5\right)} \]
      4. *-commutative95.3%

        \[\leadsto x \cdot \color{blue}{\left(0.5 \cdot \frac{y}{a}\right)} \]
      5. associate-*r/95.3%

        \[\leadsto x \cdot \color{blue}{\frac{0.5 \cdot y}{a}} \]
    5. Simplified95.3%

      \[\leadsto \color{blue}{x \cdot \frac{0.5 \cdot y}{a}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification90.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \cdot y \leq 5 \cdot 10^{+280}:\\ \;\;\;\;\frac{0.5}{\frac{a}{x \cdot y - z \cdot \left(9 \cdot t\right)}}\\ \mathbf{else}:\\ \;\;\;\;x \cdot \frac{y \cdot 0.5}{a}\\ \end{array} \]
  5. Add Preprocessing

Alternative 9: 65.2% accurate, 0.8× speedup?

\[\begin{array}{l} [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\ \\ \begin{array}{l} \mathbf{if}\;y \leq -1.55 \cdot 10^{-86} \lor \neg \left(y \leq 4.5 \cdot 10^{+124}\right):\\ \;\;\;\;x \cdot \frac{y \cdot 0.5}{a}\\ \mathbf{else}:\\ \;\;\;\;t \cdot \left(\frac{z}{a} \cdot -4.5\right)\\ \end{array} \end{array} \]
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 (<= y -1.55e-86) (not (<= y 4.5e+124)))
   (* x (/ (* y 0.5) a))
   (* t (* (/ z a) -4.5))))
assert(x < y && y < z && z < t && t < a);
double code(double x, double y, double z, double t, double a) {
	double tmp;
	if ((y <= -1.55e-86) || !(y <= 4.5e+124)) {
		tmp = x * ((y * 0.5) / a);
	} else {
		tmp = t * ((z / a) * -4.5);
	}
	return tmp;
}
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 ((y <= (-1.55d-86)) .or. (.not. (y <= 4.5d+124))) then
        tmp = x * ((y * 0.5d0) / a)
    else
        tmp = t * ((z / a) * (-4.5d0))
    end if
    code = tmp
end function
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 ((y <= -1.55e-86) || !(y <= 4.5e+124)) {
		tmp = x * ((y * 0.5) / a);
	} else {
		tmp = t * ((z / a) * -4.5);
	}
	return tmp;
}
[x, y, z, t, a] = sort([x, y, z, t, a])
def code(x, y, z, t, a):
	tmp = 0
	if (y <= -1.55e-86) or not (y <= 4.5e+124):
		tmp = x * ((y * 0.5) / a)
	else:
		tmp = t * ((z / a) * -4.5)
	return tmp
x, y, z, t, a = sort([x, y, z, t, a])
function code(x, y, z, t, a)
	tmp = 0.0
	if ((y <= -1.55e-86) || !(y <= 4.5e+124))
		tmp = Float64(x * Float64(Float64(y * 0.5) / a));
	else
		tmp = Float64(t * Float64(Float64(z / a) * -4.5));
	end
	return tmp
end
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 ((y <= -1.55e-86) || ~((y <= 4.5e+124)))
		tmp = x * ((y * 0.5) / a);
	else
		tmp = t * ((z / a) * -4.5);
	end
	tmp_2 = tmp;
end
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[y, -1.55e-86], N[Not[LessEqual[y, 4.5e+124]], $MachinePrecision]], N[(x * N[(N[(y * 0.5), $MachinePrecision] / a), $MachinePrecision]), $MachinePrecision], N[(t * N[(N[(z / a), $MachinePrecision] * -4.5), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
[x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\
\\
\begin{array}{l}
\mathbf{if}\;y \leq -1.55 \cdot 10^{-86} \lor \neg \left(y \leq 4.5 \cdot 10^{+124}\right):\\
\;\;\;\;x \cdot \frac{y \cdot 0.5}{a}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -1.54999999999999994e-86 or 4.5000000000000004e124 < y

    1. Initial program 86.2%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 62.4%

      \[\leadsto \color{blue}{0.5 \cdot \frac{x \cdot y}{a}} \]
    4. Step-by-step derivation
      1. *-commutative62.4%

        \[\leadsto \color{blue}{\frac{x \cdot y}{a} \cdot 0.5} \]
      2. associate-/l*64.7%

        \[\leadsto \color{blue}{\left(x \cdot \frac{y}{a}\right)} \cdot 0.5 \]
      3. associate-*r*64.7%

        \[\leadsto \color{blue}{x \cdot \left(\frac{y}{a} \cdot 0.5\right)} \]
      4. *-commutative64.7%

        \[\leadsto x \cdot \color{blue}{\left(0.5 \cdot \frac{y}{a}\right)} \]
      5. associate-*r/64.7%

        \[\leadsto x \cdot \color{blue}{\frac{0.5 \cdot y}{a}} \]
    5. Simplified64.7%

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

    if -1.54999999999999994e-86 < y < 4.5000000000000004e124

    1. Initial program 89.6%

      \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
    2. Add Preprocessing
    3. Taylor expanded in x around 0 60.7%

      \[\leadsto \frac{\color{blue}{-9 \cdot \left(t \cdot z\right)}}{a \cdot 2} \]
    4. Step-by-step derivation
      1. *-commutative60.7%

        \[\leadsto \frac{\color{blue}{\left(t \cdot z\right) \cdot -9}}{a \cdot 2} \]
      2. associate-*r*60.7%

        \[\leadsto \frac{\color{blue}{t \cdot \left(z \cdot -9\right)}}{a \cdot 2} \]
    5. Simplified60.7%

      \[\leadsto \frac{\color{blue}{t \cdot \left(z \cdot -9\right)}}{a \cdot 2} \]
    6. Step-by-step derivation
      1. associate-/l*64.9%

        \[\leadsto \color{blue}{t \cdot \frac{z \cdot -9}{a \cdot 2}} \]
      2. times-frac65.0%

        \[\leadsto t \cdot \color{blue}{\left(\frac{z}{a} \cdot \frac{-9}{2}\right)} \]
      3. metadata-eval65.0%

        \[\leadsto t \cdot \left(\frac{z}{a} \cdot \color{blue}{-4.5}\right) \]
    7. Applied egg-rr65.0%

      \[\leadsto \color{blue}{t \cdot \left(\frac{z}{a} \cdot -4.5\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification64.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1.55 \cdot 10^{-86} \lor \neg \left(y \leq 4.5 \cdot 10^{+124}\right):\\ \;\;\;\;x \cdot \frac{y \cdot 0.5}{a}\\ \mathbf{else}:\\ \;\;\;\;t \cdot \left(\frac{z}{a} \cdot -4.5\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 10: 51.9% accurate, 1.9× speedup?

\[\begin{array}{l} [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\ \\ -4.5 \cdot \left(t \cdot \frac{z}{a}\right) \end{array} \]
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 (* t (/ z 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 * (t * (z / a));
}
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) * (t * (z / a))
end function
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 * (t * (z / a));
}
[x, y, z, t, a] = sort([x, y, z, t, a])
def code(x, y, z, t, a):
	return -4.5 * (t * (z / a))
x, y, z, t, a = sort([x, y, z, t, a])
function code(x, y, z, t, a)
	return Float64(-4.5 * Float64(t * Float64(z / a)))
end
x, y, z, t, a = num2cell(sort([x, y, z, t, a])){:}
function tmp = code(x, y, z, t, a)
	tmp = -4.5 * (t * (z / a));
end
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[(t * N[(z / a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
[x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\
\\
-4.5 \cdot \left(t \cdot \frac{z}{a}\right)
\end{array}
Derivation
  1. Initial program 88.1%

    \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
  2. Add Preprocessing
  3. Taylor expanded in x around 0 46.5%

    \[\leadsto \color{blue}{-4.5 \cdot \frac{t \cdot z}{a}} \]
  4. Step-by-step derivation
    1. associate-/l*51.4%

      \[\leadsto -4.5 \cdot \color{blue}{\left(t \cdot \frac{z}{a}\right)} \]
  5. Simplified51.4%

    \[\leadsto \color{blue}{-4.5 \cdot \left(t \cdot \frac{z}{a}\right)} \]
  6. Final simplification51.4%

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

Alternative 11: 51.7% accurate, 1.9× speedup?

\[\begin{array}{l} [x, y, z, t, a] = \mathsf{sort}([x, y, z, t, a])\\ \\ -4.5 \cdot \left(z \cdot \frac{t}{a}\right) \end{array} \]
NOTE: x, y, z, t, and a should be sorted in increasing order before calling this function.
(FPCore (x y z t a) :precision binary64 (* -4.5 (* z (/ 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.
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;
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])
def code(x, y, z, t, a):
	return -4.5 * (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])){:}
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.
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])\\
\\
-4.5 \cdot \left(z \cdot \frac{t}{a}\right)
\end{array}
Derivation
  1. Initial program 88.1%

    \[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2} \]
  2. Add Preprocessing
  3. Taylor expanded in x around 0 46.5%

    \[\leadsto \color{blue}{-4.5 \cdot \frac{t \cdot z}{a}} \]
  4. Step-by-step derivation
    1. clear-num46.5%

      \[\leadsto -4.5 \cdot \color{blue}{\frac{1}{\frac{a}{t \cdot z}}} \]
    2. associate-/r*48.7%

      \[\leadsto -4.5 \cdot \frac{1}{\color{blue}{\frac{\frac{a}{t}}{z}}} \]
    3. associate-/r/49.0%

      \[\leadsto -4.5 \cdot \color{blue}{\left(\frac{1}{\frac{a}{t}} \cdot z\right)} \]
    4. clear-num49.5%

      \[\leadsto -4.5 \cdot \left(\color{blue}{\frac{t}{a}} \cdot z\right) \]
  5. Applied egg-rr49.5%

    \[\leadsto -4.5 \cdot \color{blue}{\left(\frac{t}{a} \cdot z\right)} \]
  6. Final simplification49.5%

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

Developer target: 93.2% accurate, 0.5× 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 2024060 
(FPCore (x y z t a)
  :name "Diagrams.Solve.Polynomial:cubForm  from diagrams-solve-0.1, I"
  :precision binary64

  :alt
  (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)))