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

Percentage Accurate: 70.1% → 76.6%
Time: 19.3s
Alternatives: 7
Speedup: 1.0×

Specification

?
\[\begin{array}{l} \\ \left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - \frac{a}{b \cdot 3} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (- (* (* 2.0 (sqrt x)) (cos (- y (/ (* z t) 3.0)))) (/ a (* b 3.0))))
double code(double x, double y, double z, double t, double a, double b) {
	return ((2.0 * sqrt(x)) * cos((y - ((z * t) / 3.0)))) - (a / (b * 3.0));
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    code = ((2.0d0 * sqrt(x)) * cos((y - ((z * t) / 3.0d0)))) - (a / (b * 3.0d0))
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	return ((2.0 * Math.sqrt(x)) * Math.cos((y - ((z * t) / 3.0)))) - (a / (b * 3.0));
}
def code(x, y, z, t, a, b):
	return ((2.0 * math.sqrt(x)) * math.cos((y - ((z * t) / 3.0)))) - (a / (b * 3.0))
function code(x, y, z, t, a, b)
	return Float64(Float64(Float64(2.0 * sqrt(x)) * cos(Float64(y - Float64(Float64(z * t) / 3.0)))) - Float64(a / Float64(b * 3.0)))
end
function tmp = code(x, y, z, t, a, b)
	tmp = ((2.0 * sqrt(x)) * cos((y - ((z * t) / 3.0)))) - (a / (b * 3.0));
end
code[x_, y_, z_, t_, a_, b_] := N[(N[(N[(2.0 * N[Sqrt[x], $MachinePrecision]), $MachinePrecision] * N[Cos[N[(y - N[(N[(z * t), $MachinePrecision] / 3.0), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision] - N[(a / N[(b * 3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - \frac{a}{b \cdot 3}
\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 7 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: 70.1% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - \frac{a}{b \cdot 3} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (- (* (* 2.0 (sqrt x)) (cos (- y (/ (* z t) 3.0)))) (/ a (* b 3.0))))
double code(double x, double y, double z, double t, double a, double b) {
	return ((2.0 * sqrt(x)) * cos((y - ((z * t) / 3.0)))) - (a / (b * 3.0));
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    code = ((2.0d0 * sqrt(x)) * cos((y - ((z * t) / 3.0d0)))) - (a / (b * 3.0d0))
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	return ((2.0 * Math.sqrt(x)) * Math.cos((y - ((z * t) / 3.0)))) - (a / (b * 3.0));
}
def code(x, y, z, t, a, b):
	return ((2.0 * math.sqrt(x)) * math.cos((y - ((z * t) / 3.0)))) - (a / (b * 3.0))
function code(x, y, z, t, a, b)
	return Float64(Float64(Float64(2.0 * sqrt(x)) * cos(Float64(y - Float64(Float64(z * t) / 3.0)))) - Float64(a / Float64(b * 3.0)))
end
function tmp = code(x, y, z, t, a, b)
	tmp = ((2.0 * sqrt(x)) * cos((y - ((z * t) / 3.0)))) - (a / (b * 3.0));
end
code[x_, y_, z_, t_, a_, b_] := N[(N[(N[(2.0 * N[Sqrt[x], $MachinePrecision]), $MachinePrecision] * N[Cos[N[(y - N[(N[(z * t), $MachinePrecision] / 3.0), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision] - N[(a / N[(b * 3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - \frac{a}{b \cdot 3}
\end{array}

Alternative 1: 76.6% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \frac{a}{b \cdot 3} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (- (* (cos y) (* 2.0 (sqrt x))) (/ a (* b 3.0))))
double code(double x, double y, double z, double t, double a, double b) {
	return (cos(y) * (2.0 * sqrt(x))) - (a / (b * 3.0));
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    code = (cos(y) * (2.0d0 * sqrt(x))) - (a / (b * 3.0d0))
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	return (Math.cos(y) * (2.0 * Math.sqrt(x))) - (a / (b * 3.0));
}
def code(x, y, z, t, a, b):
	return (math.cos(y) * (2.0 * math.sqrt(x))) - (a / (b * 3.0))
function code(x, y, z, t, a, b)
	return Float64(Float64(cos(y) * Float64(2.0 * sqrt(x))) - Float64(a / Float64(b * 3.0)))
end
function tmp = code(x, y, z, t, a, b)
	tmp = (cos(y) * (2.0 * sqrt(x))) - (a / (b * 3.0));
end
code[x_, y_, z_, t_, a_, b_] := N[(N[(N[Cos[y], $MachinePrecision] * N[(2.0 * N[Sqrt[x], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - N[(a / N[(b * 3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\cos y \cdot \left(2 \cdot \sqrt{x}\right) - \frac{a}{b \cdot 3}
\end{array}
Derivation
  1. Initial program 65.4%

    \[\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - \frac{a}{b \cdot 3} \]
  2. Taylor expanded in z around 0 73.7%

    \[\leadsto \color{blue}{2 \cdot \left(\cos y \cdot \sqrt{x}\right)} - \frac{a}{b \cdot 3} \]
  3. Step-by-step derivation
    1. *-commutative73.7%

      \[\leadsto \color{blue}{\left(\cos y \cdot \sqrt{x}\right) \cdot 2} - \frac{a}{b \cdot 3} \]
    2. associate-*l*73.7%

      \[\leadsto \color{blue}{\cos y \cdot \left(\sqrt{x} \cdot 2\right)} - \frac{a}{b \cdot 3} \]
    3. *-commutative73.7%

      \[\leadsto \cos y \cdot \color{blue}{\left(2 \cdot \sqrt{x}\right)} - \frac{a}{b \cdot 3} \]
  4. Simplified73.7%

    \[\leadsto \color{blue}{\cos y \cdot \left(2 \cdot \sqrt{x}\right)} - \frac{a}{b \cdot 3} \]
  5. Final simplification73.7%

    \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \frac{a}{b \cdot 3} \]

Alternative 2: 72.2% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{a}{b \cdot 3}\\ \mathbf{if}\;t_1 \leq -1 \cdot 10^{-113} \lor \neg \left(t_1 \leq 5 \cdot 10^{-101}\right):\\ \;\;\;\;2 \cdot \sqrt{x} - t_1\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \left(\cos y \cdot \sqrt{x}\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (/ a (* b 3.0))))
   (if (or (<= t_1 -1e-113) (not (<= t_1 5e-101)))
     (- (* 2.0 (sqrt x)) t_1)
     (* 2.0 (* (cos y) (sqrt x))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = a / (b * 3.0);
	double tmp;
	if ((t_1 <= -1e-113) || !(t_1 <= 5e-101)) {
		tmp = (2.0 * sqrt(x)) - t_1;
	} else {
		tmp = 2.0 * (cos(y) * sqrt(x));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: t_1
    real(8) :: tmp
    t_1 = a / (b * 3.0d0)
    if ((t_1 <= (-1d-113)) .or. (.not. (t_1 <= 5d-101))) then
        tmp = (2.0d0 * sqrt(x)) - t_1
    else
        tmp = 2.0d0 * (cos(y) * sqrt(x))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = a / (b * 3.0);
	double tmp;
	if ((t_1 <= -1e-113) || !(t_1 <= 5e-101)) {
		tmp = (2.0 * Math.sqrt(x)) - t_1;
	} else {
		tmp = 2.0 * (Math.cos(y) * Math.sqrt(x));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = a / (b * 3.0)
	tmp = 0
	if (t_1 <= -1e-113) or not (t_1 <= 5e-101):
		tmp = (2.0 * math.sqrt(x)) - t_1
	else:
		tmp = 2.0 * (math.cos(y) * math.sqrt(x))
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(a / Float64(b * 3.0))
	tmp = 0.0
	if ((t_1 <= -1e-113) || !(t_1 <= 5e-101))
		tmp = Float64(Float64(2.0 * sqrt(x)) - t_1);
	else
		tmp = Float64(2.0 * Float64(cos(y) * sqrt(x)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = a / (b * 3.0);
	tmp = 0.0;
	if ((t_1 <= -1e-113) || ~((t_1 <= 5e-101)))
		tmp = (2.0 * sqrt(x)) - t_1;
	else
		tmp = 2.0 * (cos(y) * sqrt(x));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(a / N[(b * 3.0), $MachinePrecision]), $MachinePrecision]}, If[Or[LessEqual[t$95$1, -1e-113], N[Not[LessEqual[t$95$1, 5e-101]], $MachinePrecision]], N[(N[(2.0 * N[Sqrt[x], $MachinePrecision]), $MachinePrecision] - t$95$1), $MachinePrecision], N[(2.0 * N[(N[Cos[y], $MachinePrecision] * N[Sqrt[x], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \frac{a}{b \cdot 3}\\
\mathbf{if}\;t_1 \leq -1 \cdot 10^{-113} \lor \neg \left(t_1 \leq 5 \cdot 10^{-101}\right):\\
\;\;\;\;2 \cdot \sqrt{x} - t_1\\

\mathbf{else}:\\
\;\;\;\;2 \cdot \left(\cos y \cdot \sqrt{x}\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (/.f64 a (*.f64 b 3)) < -9.99999999999999979e-114 or 5.0000000000000001e-101 < (/.f64 a (*.f64 b 3))

    1. Initial program 74.1%

      \[\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - \frac{a}{b \cdot 3} \]
    2. Taylor expanded in z around 0 87.1%

      \[\leadsto \color{blue}{2 \cdot \left(\cos y \cdot \sqrt{x}\right)} - \frac{a}{b \cdot 3} \]
    3. Step-by-step derivation
      1. *-commutative87.1%

        \[\leadsto \color{blue}{\left(\cos y \cdot \sqrt{x}\right) \cdot 2} - \frac{a}{b \cdot 3} \]
      2. associate-*l*87.1%

        \[\leadsto \color{blue}{\cos y \cdot \left(\sqrt{x} \cdot 2\right)} - \frac{a}{b \cdot 3} \]
      3. *-commutative87.1%

        \[\leadsto \cos y \cdot \color{blue}{\left(2 \cdot \sqrt{x}\right)} - \frac{a}{b \cdot 3} \]
    4. Simplified87.1%

      \[\leadsto \color{blue}{\cos y \cdot \left(2 \cdot \sqrt{x}\right)} - \frac{a}{b \cdot 3} \]
    5. Taylor expanded in y around 0 82.1%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x}} - \frac{a}{b \cdot 3} \]

    if -9.99999999999999979e-114 < (/.f64 a (*.f64 b 3)) < 5.0000000000000001e-101

    1. Initial program 51.0%

      \[\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - \frac{a}{b \cdot 3} \]
    2. Taylor expanded in z around 0 51.4%

      \[\leadsto \color{blue}{2 \cdot \left(\cos y \cdot \sqrt{x}\right)} - \frac{a}{b \cdot 3} \]
    3. Step-by-step derivation
      1. *-commutative51.4%

        \[\leadsto \color{blue}{\left(\cos y \cdot \sqrt{x}\right) \cdot 2} - \frac{a}{b \cdot 3} \]
      2. associate-*l*51.4%

        \[\leadsto \color{blue}{\cos y \cdot \left(\sqrt{x} \cdot 2\right)} - \frac{a}{b \cdot 3} \]
      3. *-commutative51.4%

        \[\leadsto \cos y \cdot \color{blue}{\left(2 \cdot \sqrt{x}\right)} - \frac{a}{b \cdot 3} \]
    4. Simplified51.4%

      \[\leadsto \color{blue}{\cos y \cdot \left(2 \cdot \sqrt{x}\right)} - \frac{a}{b \cdot 3} \]
    5. Taylor expanded in a around 0 51.4%

      \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \color{blue}{0.3333333333333333 \cdot \frac{a}{b}} \]
    6. Step-by-step derivation
      1. *-commutative51.4%

        \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \color{blue}{\frac{a}{b} \cdot 0.3333333333333333} \]
      2. metadata-eval51.4%

        \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \frac{a}{b} \cdot \color{blue}{\frac{1}{3}} \]
      3. times-frac51.4%

        \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \color{blue}{\frac{a \cdot 1}{b \cdot 3}} \]
      4. associate-*r/51.4%

        \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \color{blue}{a \cdot \frac{1}{b \cdot 3}} \]
      5. *-commutative51.4%

        \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - a \cdot \frac{1}{\color{blue}{3 \cdot b}} \]
      6. associate-/r*51.4%

        \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - a \cdot \color{blue}{\frac{\frac{1}{3}}{b}} \]
      7. metadata-eval51.4%

        \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - a \cdot \frac{\color{blue}{0.3333333333333333}}{b} \]
    7. Simplified51.4%

      \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \color{blue}{a \cdot \frac{0.3333333333333333}{b}} \]
    8. Taylor expanded in a around 0 51.0%

      \[\leadsto \color{blue}{2 \cdot \left(\cos y \cdot \sqrt{x}\right)} \]
    9. Step-by-step derivation
      1. *-commutative51.0%

        \[\leadsto 2 \cdot \color{blue}{\left(\sqrt{x} \cdot \cos y\right)} \]
    10. Simplified51.0%

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

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{a}{b \cdot 3} \leq -1 \cdot 10^{-113} \lor \neg \left(\frac{a}{b \cdot 3} \leq 5 \cdot 10^{-101}\right):\\ \;\;\;\;2 \cdot \sqrt{x} - \frac{a}{b \cdot 3}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \left(\cos y \cdot \sqrt{x}\right)\\ \end{array} \]

Alternative 3: 76.6% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \cos y \cdot \left(2 \cdot \sqrt{x}\right) - a \cdot \frac{0.3333333333333333}{b} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (- (* (cos y) (* 2.0 (sqrt x))) (* a (/ 0.3333333333333333 b))))
double code(double x, double y, double z, double t, double a, double b) {
	return (cos(y) * (2.0 * sqrt(x))) - (a * (0.3333333333333333 / b));
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    code = (cos(y) * (2.0d0 * sqrt(x))) - (a * (0.3333333333333333d0 / b))
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	return (Math.cos(y) * (2.0 * Math.sqrt(x))) - (a * (0.3333333333333333 / b));
}
def code(x, y, z, t, a, b):
	return (math.cos(y) * (2.0 * math.sqrt(x))) - (a * (0.3333333333333333 / b))
function code(x, y, z, t, a, b)
	return Float64(Float64(cos(y) * Float64(2.0 * sqrt(x))) - Float64(a * Float64(0.3333333333333333 / b)))
end
function tmp = code(x, y, z, t, a, b)
	tmp = (cos(y) * (2.0 * sqrt(x))) - (a * (0.3333333333333333 / b));
end
code[x_, y_, z_, t_, a_, b_] := N[(N[(N[Cos[y], $MachinePrecision] * N[(2.0 * N[Sqrt[x], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - N[(a * N[(0.3333333333333333 / b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\cos y \cdot \left(2 \cdot \sqrt{x}\right) - a \cdot \frac{0.3333333333333333}{b}
\end{array}
Derivation
  1. Initial program 65.4%

    \[\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - \frac{a}{b \cdot 3} \]
  2. Taylor expanded in z around 0 73.7%

    \[\leadsto \color{blue}{2 \cdot \left(\cos y \cdot \sqrt{x}\right)} - \frac{a}{b \cdot 3} \]
  3. Step-by-step derivation
    1. *-commutative73.7%

      \[\leadsto \color{blue}{\left(\cos y \cdot \sqrt{x}\right) \cdot 2} - \frac{a}{b \cdot 3} \]
    2. associate-*l*73.7%

      \[\leadsto \color{blue}{\cos y \cdot \left(\sqrt{x} \cdot 2\right)} - \frac{a}{b \cdot 3} \]
    3. *-commutative73.7%

      \[\leadsto \cos y \cdot \color{blue}{\left(2 \cdot \sqrt{x}\right)} - \frac{a}{b \cdot 3} \]
  4. Simplified73.7%

    \[\leadsto \color{blue}{\cos y \cdot \left(2 \cdot \sqrt{x}\right)} - \frac{a}{b \cdot 3} \]
  5. Taylor expanded in a around 0 73.6%

    \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \color{blue}{0.3333333333333333 \cdot \frac{a}{b}} \]
  6. Step-by-step derivation
    1. *-commutative73.6%

      \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \color{blue}{\frac{a}{b} \cdot 0.3333333333333333} \]
    2. metadata-eval73.6%

      \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \frac{a}{b} \cdot \color{blue}{\frac{1}{3}} \]
    3. times-frac73.7%

      \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \color{blue}{\frac{a \cdot 1}{b \cdot 3}} \]
    4. associate-*r/73.7%

      \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \color{blue}{a \cdot \frac{1}{b \cdot 3}} \]
    5. *-commutative73.7%

      \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - a \cdot \frac{1}{\color{blue}{3 \cdot b}} \]
    6. associate-/r*73.7%

      \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - a \cdot \color{blue}{\frac{\frac{1}{3}}{b}} \]
    7. metadata-eval73.7%

      \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - a \cdot \frac{\color{blue}{0.3333333333333333}}{b} \]
  7. Simplified73.7%

    \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \color{blue}{a \cdot \frac{0.3333333333333333}{b}} \]
  8. Final simplification73.7%

    \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - a \cdot \frac{0.3333333333333333}{b} \]

Alternative 4: 65.6% accurate, 2.0× speedup?

\[\begin{array}{l} \\ 2 \cdot \sqrt{x} - \frac{a}{b \cdot 3} \end{array} \]
(FPCore (x y z t a b) :precision binary64 (- (* 2.0 (sqrt x)) (/ a (* b 3.0))))
double code(double x, double y, double z, double t, double a, double b) {
	return (2.0 * sqrt(x)) - (a / (b * 3.0));
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    code = (2.0d0 * sqrt(x)) - (a / (b * 3.0d0))
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	return (2.0 * Math.sqrt(x)) - (a / (b * 3.0));
}
def code(x, y, z, t, a, b):
	return (2.0 * math.sqrt(x)) - (a / (b * 3.0))
function code(x, y, z, t, a, b)
	return Float64(Float64(2.0 * sqrt(x)) - Float64(a / Float64(b * 3.0)))
end
function tmp = code(x, y, z, t, a, b)
	tmp = (2.0 * sqrt(x)) - (a / (b * 3.0));
end
code[x_, y_, z_, t_, a_, b_] := N[(N[(2.0 * N[Sqrt[x], $MachinePrecision]), $MachinePrecision] - N[(a / N[(b * 3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
2 \cdot \sqrt{x} - \frac{a}{b \cdot 3}
\end{array}
Derivation
  1. Initial program 65.4%

    \[\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - \frac{a}{b \cdot 3} \]
  2. Taylor expanded in z around 0 73.7%

    \[\leadsto \color{blue}{2 \cdot \left(\cos y \cdot \sqrt{x}\right)} - \frac{a}{b \cdot 3} \]
  3. Step-by-step derivation
    1. *-commutative73.7%

      \[\leadsto \color{blue}{\left(\cos y \cdot \sqrt{x}\right) \cdot 2} - \frac{a}{b \cdot 3} \]
    2. associate-*l*73.7%

      \[\leadsto \color{blue}{\cos y \cdot \left(\sqrt{x} \cdot 2\right)} - \frac{a}{b \cdot 3} \]
    3. *-commutative73.7%

      \[\leadsto \cos y \cdot \color{blue}{\left(2 \cdot \sqrt{x}\right)} - \frac{a}{b \cdot 3} \]
  4. Simplified73.7%

    \[\leadsto \color{blue}{\cos y \cdot \left(2 \cdot \sqrt{x}\right)} - \frac{a}{b \cdot 3} \]
  5. Taylor expanded in y around 0 62.5%

    \[\leadsto \color{blue}{2 \cdot \sqrt{x}} - \frac{a}{b \cdot 3} \]
  6. Final simplification62.5%

    \[\leadsto 2 \cdot \sqrt{x} - \frac{a}{b \cdot 3} \]

Alternative 5: 53.0% accurate, 2.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;a \leq -4.8 \cdot 10^{-268}:\\ \;\;\;\;a \cdot \frac{-0.3333333333333333}{b}\\ \mathbf{elif}\;a \leq 1.66 \cdot 10^{-130}:\\ \;\;\;\;2 \cdot \sqrt{x}\\ \mathbf{else}:\\ \;\;\;\;\frac{a}{b \cdot -3}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= a -4.8e-268)
   (* a (/ -0.3333333333333333 b))
   (if (<= a 1.66e-130) (* 2.0 (sqrt x)) (/ a (* b -3.0)))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (a <= -4.8e-268) {
		tmp = a * (-0.3333333333333333 / b);
	} else if (a <= 1.66e-130) {
		tmp = 2.0 * sqrt(x);
	} else {
		tmp = a / (b * -3.0);
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if (a <= (-4.8d-268)) then
        tmp = a * ((-0.3333333333333333d0) / b)
    else if (a <= 1.66d-130) then
        tmp = 2.0d0 * sqrt(x)
    else
        tmp = a / (b * (-3.0d0))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (a <= -4.8e-268) {
		tmp = a * (-0.3333333333333333 / b);
	} else if (a <= 1.66e-130) {
		tmp = 2.0 * Math.sqrt(x);
	} else {
		tmp = a / (b * -3.0);
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if a <= -4.8e-268:
		tmp = a * (-0.3333333333333333 / b)
	elif a <= 1.66e-130:
		tmp = 2.0 * math.sqrt(x)
	else:
		tmp = a / (b * -3.0)
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (a <= -4.8e-268)
		tmp = Float64(a * Float64(-0.3333333333333333 / b));
	elseif (a <= 1.66e-130)
		tmp = Float64(2.0 * sqrt(x));
	else
		tmp = Float64(a / Float64(b * -3.0));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (a <= -4.8e-268)
		tmp = a * (-0.3333333333333333 / b);
	elseif (a <= 1.66e-130)
		tmp = 2.0 * sqrt(x);
	else
		tmp = a / (b * -3.0);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[a, -4.8e-268], N[(a * N[(-0.3333333333333333 / b), $MachinePrecision]), $MachinePrecision], If[LessEqual[a, 1.66e-130], N[(2.0 * N[Sqrt[x], $MachinePrecision]), $MachinePrecision], N[(a / N[(b * -3.0), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;a \leq -4.8 \cdot 10^{-268}:\\
\;\;\;\;a \cdot \frac{-0.3333333333333333}{b}\\

\mathbf{elif}\;a \leq 1.66 \cdot 10^{-130}:\\
\;\;\;\;2 \cdot \sqrt{x}\\

\mathbf{else}:\\
\;\;\;\;\frac{a}{b \cdot -3}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if a < -4.7999999999999998e-268

    1. Initial program 64.3%

      \[\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - \frac{a}{b \cdot 3} \]
    2. Taylor expanded in z around 0 74.2%

      \[\leadsto \color{blue}{2 \cdot \left(\cos y \cdot \sqrt{x}\right)} - \frac{a}{b \cdot 3} \]
    3. Step-by-step derivation
      1. *-commutative74.2%

        \[\leadsto \color{blue}{\left(\cos y \cdot \sqrt{x}\right) \cdot 2} - \frac{a}{b \cdot 3} \]
      2. associate-*l*74.2%

        \[\leadsto \color{blue}{\cos y \cdot \left(\sqrt{x} \cdot 2\right)} - \frac{a}{b \cdot 3} \]
      3. *-commutative74.2%

        \[\leadsto \cos y \cdot \color{blue}{\left(2 \cdot \sqrt{x}\right)} - \frac{a}{b \cdot 3} \]
    4. Simplified74.2%

      \[\leadsto \color{blue}{\cos y \cdot \left(2 \cdot \sqrt{x}\right)} - \frac{a}{b \cdot 3} \]
    5. Taylor expanded in a around 0 74.1%

      \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \color{blue}{0.3333333333333333 \cdot \frac{a}{b}} \]
    6. Step-by-step derivation
      1. *-commutative74.1%

        \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \color{blue}{\frac{a}{b} \cdot 0.3333333333333333} \]
      2. metadata-eval74.1%

        \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \frac{a}{b} \cdot \color{blue}{\frac{1}{3}} \]
      3. times-frac74.2%

        \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \color{blue}{\frac{a \cdot 1}{b \cdot 3}} \]
      4. associate-*r/74.2%

        \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \color{blue}{a \cdot \frac{1}{b \cdot 3}} \]
      5. *-commutative74.2%

        \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - a \cdot \frac{1}{\color{blue}{3 \cdot b}} \]
      6. associate-/r*74.2%

        \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - a \cdot \color{blue}{\frac{\frac{1}{3}}{b}} \]
      7. metadata-eval74.2%

        \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - a \cdot \frac{\color{blue}{0.3333333333333333}}{b} \]
    7. Simplified74.2%

      \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \color{blue}{a \cdot \frac{0.3333333333333333}{b}} \]
    8. Taylor expanded in x around 0 53.5%

      \[\leadsto \color{blue}{-0.3333333333333333 \cdot \frac{a}{b}} \]
    9. Step-by-step derivation
      1. associate-*r/53.6%

        \[\leadsto \color{blue}{\frac{-0.3333333333333333 \cdot a}{b}} \]
      2. associate-*l/53.6%

        \[\leadsto \color{blue}{\frac{-0.3333333333333333}{b} \cdot a} \]
      3. metadata-eval53.6%

        \[\leadsto \frac{\color{blue}{-0.3333333333333333}}{b} \cdot a \]
      4. distribute-neg-frac53.6%

        \[\leadsto \color{blue}{\left(-\frac{0.3333333333333333}{b}\right)} \cdot a \]
      5. *-commutative53.6%

        \[\leadsto \color{blue}{a \cdot \left(-\frac{0.3333333333333333}{b}\right)} \]
      6. distribute-neg-frac53.6%

        \[\leadsto a \cdot \color{blue}{\frac{-0.3333333333333333}{b}} \]
      7. metadata-eval53.6%

        \[\leadsto a \cdot \frac{\color{blue}{-0.3333333333333333}}{b} \]
    10. Simplified53.6%

      \[\leadsto \color{blue}{a \cdot \frac{-0.3333333333333333}{b}} \]

    if -4.7999999999999998e-268 < a < 1.65999999999999993e-130

    1. Initial program 56.3%

      \[\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - \frac{a}{b \cdot 3} \]
    2. Taylor expanded in z around 0 60.0%

      \[\leadsto \color{blue}{2 \cdot \left(\cos y \cdot \sqrt{x}\right)} - \frac{a}{b \cdot 3} \]
    3. Step-by-step derivation
      1. *-commutative60.0%

        \[\leadsto \color{blue}{\left(\cos y \cdot \sqrt{x}\right) \cdot 2} - \frac{a}{b \cdot 3} \]
      2. associate-*l*60.0%

        \[\leadsto \color{blue}{\cos y \cdot \left(\sqrt{x} \cdot 2\right)} - \frac{a}{b \cdot 3} \]
      3. *-commutative60.0%

        \[\leadsto \cos y \cdot \color{blue}{\left(2 \cdot \sqrt{x}\right)} - \frac{a}{b \cdot 3} \]
    4. Simplified60.0%

      \[\leadsto \color{blue}{\cos y \cdot \left(2 \cdot \sqrt{x}\right)} - \frac{a}{b \cdot 3} \]
    5. Taylor expanded in y around 0 37.0%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x}} - \frac{a}{b \cdot 3} \]
    6. Taylor expanded in a around 0 28.1%

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

    if 1.65999999999999993e-130 < a

    1. Initial program 73.0%

      \[\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - \frac{a}{b \cdot 3} \]
    2. Taylor expanded in z around 0 81.9%

      \[\leadsto \color{blue}{2 \cdot \left(\cos y \cdot \sqrt{x}\right)} - \frac{a}{b \cdot 3} \]
    3. Step-by-step derivation
      1. *-commutative81.9%

        \[\leadsto \color{blue}{\left(\cos y \cdot \sqrt{x}\right) \cdot 2} - \frac{a}{b \cdot 3} \]
      2. associate-*l*81.9%

        \[\leadsto \color{blue}{\cos y \cdot \left(\sqrt{x} \cdot 2\right)} - \frac{a}{b \cdot 3} \]
      3. *-commutative81.9%

        \[\leadsto \cos y \cdot \color{blue}{\left(2 \cdot \sqrt{x}\right)} - \frac{a}{b \cdot 3} \]
    4. Simplified81.9%

      \[\leadsto \color{blue}{\cos y \cdot \left(2 \cdot \sqrt{x}\right)} - \frac{a}{b \cdot 3} \]
    5. Taylor expanded in a around 0 81.7%

      \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \color{blue}{0.3333333333333333 \cdot \frac{a}{b}} \]
    6. Step-by-step derivation
      1. *-commutative81.7%

        \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \color{blue}{\frac{a}{b} \cdot 0.3333333333333333} \]
      2. metadata-eval81.7%

        \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \frac{a}{b} \cdot \color{blue}{\frac{1}{3}} \]
      3. times-frac81.9%

        \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \color{blue}{\frac{a \cdot 1}{b \cdot 3}} \]
      4. associate-*r/81.8%

        \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \color{blue}{a \cdot \frac{1}{b \cdot 3}} \]
      5. *-commutative81.8%

        \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - a \cdot \frac{1}{\color{blue}{3 \cdot b}} \]
      6. associate-/r*81.9%

        \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - a \cdot \color{blue}{\frac{\frac{1}{3}}{b}} \]
      7. metadata-eval81.9%

        \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - a \cdot \frac{\color{blue}{0.3333333333333333}}{b} \]
    7. Simplified81.9%

      \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \color{blue}{a \cdot \frac{0.3333333333333333}{b}} \]
    8. Taylor expanded in x around 0 67.6%

      \[\leadsto \color{blue}{-0.3333333333333333 \cdot \frac{a}{b}} \]
    9. Step-by-step derivation
      1. associate-*r/67.7%

        \[\leadsto \color{blue}{\frac{-0.3333333333333333 \cdot a}{b}} \]
      2. associate-*l/67.7%

        \[\leadsto \color{blue}{\frac{-0.3333333333333333}{b} \cdot a} \]
      3. metadata-eval67.7%

        \[\leadsto \frac{\color{blue}{-0.3333333333333333}}{b} \cdot a \]
      4. distribute-neg-frac67.7%

        \[\leadsto \color{blue}{\left(-\frac{0.3333333333333333}{b}\right)} \cdot a \]
      5. *-commutative67.7%

        \[\leadsto \color{blue}{a \cdot \left(-\frac{0.3333333333333333}{b}\right)} \]
      6. distribute-neg-frac67.7%

        \[\leadsto a \cdot \color{blue}{\frac{-0.3333333333333333}{b}} \]
      7. metadata-eval67.7%

        \[\leadsto a \cdot \frac{\color{blue}{-0.3333333333333333}}{b} \]
    10. Simplified67.7%

      \[\leadsto \color{blue}{a \cdot \frac{-0.3333333333333333}{b}} \]
    11. Step-by-step derivation
      1. clear-num67.7%

        \[\leadsto a \cdot \color{blue}{\frac{1}{\frac{b}{-0.3333333333333333}}} \]
      2. un-div-inv67.7%

        \[\leadsto \color{blue}{\frac{a}{\frac{b}{-0.3333333333333333}}} \]
      3. div-inv67.8%

        \[\leadsto \frac{a}{\color{blue}{b \cdot \frac{1}{-0.3333333333333333}}} \]
      4. metadata-eval67.8%

        \[\leadsto \frac{a}{b \cdot \color{blue}{-3}} \]
    12. Applied egg-rr67.8%

      \[\leadsto \color{blue}{\frac{a}{b \cdot -3}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification52.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;a \leq -4.8 \cdot 10^{-268}:\\ \;\;\;\;a \cdot \frac{-0.3333333333333333}{b}\\ \mathbf{elif}\;a \leq 1.66 \cdot 10^{-130}:\\ \;\;\;\;2 \cdot \sqrt{x}\\ \mathbf{else}:\\ \;\;\;\;\frac{a}{b \cdot -3}\\ \end{array} \]

Alternative 6: 50.8% accurate, 43.4× speedup?

\[\begin{array}{l} \\ a \cdot \frac{-0.3333333333333333}{b} \end{array} \]
(FPCore (x y z t a b) :precision binary64 (* a (/ -0.3333333333333333 b)))
double code(double x, double y, double z, double t, double a, double b) {
	return a * (-0.3333333333333333 / b);
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    code = a * ((-0.3333333333333333d0) / b)
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	return a * (-0.3333333333333333 / b);
}
def code(x, y, z, t, a, b):
	return a * (-0.3333333333333333 / b)
function code(x, y, z, t, a, b)
	return Float64(a * Float64(-0.3333333333333333 / b))
end
function tmp = code(x, y, z, t, a, b)
	tmp = a * (-0.3333333333333333 / b);
end
code[x_, y_, z_, t_, a_, b_] := N[(a * N[(-0.3333333333333333 / b), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
a \cdot \frac{-0.3333333333333333}{b}
\end{array}
Derivation
  1. Initial program 65.4%

    \[\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - \frac{a}{b \cdot 3} \]
  2. Taylor expanded in z around 0 73.7%

    \[\leadsto \color{blue}{2 \cdot \left(\cos y \cdot \sqrt{x}\right)} - \frac{a}{b \cdot 3} \]
  3. Step-by-step derivation
    1. *-commutative73.7%

      \[\leadsto \color{blue}{\left(\cos y \cdot \sqrt{x}\right) \cdot 2} - \frac{a}{b \cdot 3} \]
    2. associate-*l*73.7%

      \[\leadsto \color{blue}{\cos y \cdot \left(\sqrt{x} \cdot 2\right)} - \frac{a}{b \cdot 3} \]
    3. *-commutative73.7%

      \[\leadsto \cos y \cdot \color{blue}{\left(2 \cdot \sqrt{x}\right)} - \frac{a}{b \cdot 3} \]
  4. Simplified73.7%

    \[\leadsto \color{blue}{\cos y \cdot \left(2 \cdot \sqrt{x}\right)} - \frac{a}{b \cdot 3} \]
  5. Taylor expanded in a around 0 73.6%

    \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \color{blue}{0.3333333333333333 \cdot \frac{a}{b}} \]
  6. Step-by-step derivation
    1. *-commutative73.6%

      \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \color{blue}{\frac{a}{b} \cdot 0.3333333333333333} \]
    2. metadata-eval73.6%

      \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \frac{a}{b} \cdot \color{blue}{\frac{1}{3}} \]
    3. times-frac73.7%

      \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \color{blue}{\frac{a \cdot 1}{b \cdot 3}} \]
    4. associate-*r/73.7%

      \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \color{blue}{a \cdot \frac{1}{b \cdot 3}} \]
    5. *-commutative73.7%

      \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - a \cdot \frac{1}{\color{blue}{3 \cdot b}} \]
    6. associate-/r*73.7%

      \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - a \cdot \color{blue}{\frac{\frac{1}{3}}{b}} \]
    7. metadata-eval73.7%

      \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - a \cdot \frac{\color{blue}{0.3333333333333333}}{b} \]
  7. Simplified73.7%

    \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \color{blue}{a \cdot \frac{0.3333333333333333}{b}} \]
  8. Taylor expanded in x around 0 49.4%

    \[\leadsto \color{blue}{-0.3333333333333333 \cdot \frac{a}{b}} \]
  9. Step-by-step derivation
    1. associate-*r/49.5%

      \[\leadsto \color{blue}{\frac{-0.3333333333333333 \cdot a}{b}} \]
    2. associate-*l/49.5%

      \[\leadsto \color{blue}{\frac{-0.3333333333333333}{b} \cdot a} \]
    3. metadata-eval49.5%

      \[\leadsto \frac{\color{blue}{-0.3333333333333333}}{b} \cdot a \]
    4. distribute-neg-frac49.5%

      \[\leadsto \color{blue}{\left(-\frac{0.3333333333333333}{b}\right)} \cdot a \]
    5. *-commutative49.5%

      \[\leadsto \color{blue}{a \cdot \left(-\frac{0.3333333333333333}{b}\right)} \]
    6. distribute-neg-frac49.5%

      \[\leadsto a \cdot \color{blue}{\frac{-0.3333333333333333}{b}} \]
    7. metadata-eval49.5%

      \[\leadsto a \cdot \frac{\color{blue}{-0.3333333333333333}}{b} \]
  10. Simplified49.5%

    \[\leadsto \color{blue}{a \cdot \frac{-0.3333333333333333}{b}} \]
  11. Final simplification49.5%

    \[\leadsto a \cdot \frac{-0.3333333333333333}{b} \]

Alternative 7: 50.8% accurate, 43.4× speedup?

\[\begin{array}{l} \\ \frac{a}{b \cdot -3} \end{array} \]
(FPCore (x y z t a b) :precision binary64 (/ a (* b -3.0)))
double code(double x, double y, double z, double t, double a, double b) {
	return a / (b * -3.0);
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    code = a / (b * (-3.0d0))
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	return a / (b * -3.0);
}
def code(x, y, z, t, a, b):
	return a / (b * -3.0)
function code(x, y, z, t, a, b)
	return Float64(a / Float64(b * -3.0))
end
function tmp = code(x, y, z, t, a, b)
	tmp = a / (b * -3.0);
end
code[x_, y_, z_, t_, a_, b_] := N[(a / N[(b * -3.0), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\frac{a}{b \cdot -3}
\end{array}
Derivation
  1. Initial program 65.4%

    \[\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - \frac{a}{b \cdot 3} \]
  2. Taylor expanded in z around 0 73.7%

    \[\leadsto \color{blue}{2 \cdot \left(\cos y \cdot \sqrt{x}\right)} - \frac{a}{b \cdot 3} \]
  3. Step-by-step derivation
    1. *-commutative73.7%

      \[\leadsto \color{blue}{\left(\cos y \cdot \sqrt{x}\right) \cdot 2} - \frac{a}{b \cdot 3} \]
    2. associate-*l*73.7%

      \[\leadsto \color{blue}{\cos y \cdot \left(\sqrt{x} \cdot 2\right)} - \frac{a}{b \cdot 3} \]
    3. *-commutative73.7%

      \[\leadsto \cos y \cdot \color{blue}{\left(2 \cdot \sqrt{x}\right)} - \frac{a}{b \cdot 3} \]
  4. Simplified73.7%

    \[\leadsto \color{blue}{\cos y \cdot \left(2 \cdot \sqrt{x}\right)} - \frac{a}{b \cdot 3} \]
  5. Taylor expanded in a around 0 73.6%

    \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \color{blue}{0.3333333333333333 \cdot \frac{a}{b}} \]
  6. Step-by-step derivation
    1. *-commutative73.6%

      \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \color{blue}{\frac{a}{b} \cdot 0.3333333333333333} \]
    2. metadata-eval73.6%

      \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \frac{a}{b} \cdot \color{blue}{\frac{1}{3}} \]
    3. times-frac73.7%

      \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \color{blue}{\frac{a \cdot 1}{b \cdot 3}} \]
    4. associate-*r/73.7%

      \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \color{blue}{a \cdot \frac{1}{b \cdot 3}} \]
    5. *-commutative73.7%

      \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - a \cdot \frac{1}{\color{blue}{3 \cdot b}} \]
    6. associate-/r*73.7%

      \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - a \cdot \color{blue}{\frac{\frac{1}{3}}{b}} \]
    7. metadata-eval73.7%

      \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - a \cdot \frac{\color{blue}{0.3333333333333333}}{b} \]
  7. Simplified73.7%

    \[\leadsto \cos y \cdot \left(2 \cdot \sqrt{x}\right) - \color{blue}{a \cdot \frac{0.3333333333333333}{b}} \]
  8. Taylor expanded in x around 0 49.4%

    \[\leadsto \color{blue}{-0.3333333333333333 \cdot \frac{a}{b}} \]
  9. Step-by-step derivation
    1. associate-*r/49.5%

      \[\leadsto \color{blue}{\frac{-0.3333333333333333 \cdot a}{b}} \]
    2. associate-*l/49.5%

      \[\leadsto \color{blue}{\frac{-0.3333333333333333}{b} \cdot a} \]
    3. metadata-eval49.5%

      \[\leadsto \frac{\color{blue}{-0.3333333333333333}}{b} \cdot a \]
    4. distribute-neg-frac49.5%

      \[\leadsto \color{blue}{\left(-\frac{0.3333333333333333}{b}\right)} \cdot a \]
    5. *-commutative49.5%

      \[\leadsto \color{blue}{a \cdot \left(-\frac{0.3333333333333333}{b}\right)} \]
    6. distribute-neg-frac49.5%

      \[\leadsto a \cdot \color{blue}{\frac{-0.3333333333333333}{b}} \]
    7. metadata-eval49.5%

      \[\leadsto a \cdot \frac{\color{blue}{-0.3333333333333333}}{b} \]
  10. Simplified49.5%

    \[\leadsto \color{blue}{a \cdot \frac{-0.3333333333333333}{b}} \]
  11. Step-by-step derivation
    1. clear-num49.5%

      \[\leadsto a \cdot \color{blue}{\frac{1}{\frac{b}{-0.3333333333333333}}} \]
    2. un-div-inv49.5%

      \[\leadsto \color{blue}{\frac{a}{\frac{b}{-0.3333333333333333}}} \]
    3. div-inv49.6%

      \[\leadsto \frac{a}{\color{blue}{b \cdot \frac{1}{-0.3333333333333333}}} \]
    4. metadata-eval49.6%

      \[\leadsto \frac{a}{b \cdot \color{blue}{-3}} \]
  12. Applied egg-rr49.6%

    \[\leadsto \color{blue}{\frac{a}{b \cdot -3}} \]
  13. Final simplification49.6%

    \[\leadsto \frac{a}{b \cdot -3} \]

Developer target: 74.3% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{\frac{0.3333333333333333}{z}}{t}\\ t_2 := \frac{\frac{a}{3}}{b}\\ t_3 := 2 \cdot \sqrt{x}\\ \mathbf{if}\;z < -1.3793337487235141 \cdot 10^{+129}:\\ \;\;\;\;t_3 \cdot \cos \left(\frac{1}{y} - t_1\right) - t_2\\ \mathbf{elif}\;z < 3.516290613555987 \cdot 10^{+106}:\\ \;\;\;\;\left(\sqrt{x} \cdot 2\right) \cdot \cos \left(y - \frac{t}{3} \cdot z\right) - t_2\\ \mathbf{else}:\\ \;\;\;\;\cos \left(y - t_1\right) \cdot t_3 - \frac{\frac{a}{b}}{3}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (/ (/ 0.3333333333333333 z) t))
        (t_2 (/ (/ a 3.0) b))
        (t_3 (* 2.0 (sqrt x))))
   (if (< z -1.3793337487235141e+129)
     (- (* t_3 (cos (- (/ 1.0 y) t_1))) t_2)
     (if (< z 3.516290613555987e+106)
       (- (* (* (sqrt x) 2.0) (cos (- y (* (/ t 3.0) z)))) t_2)
       (- (* (cos (- y t_1)) t_3) (/ (/ a b) 3.0))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = (0.3333333333333333 / z) / t;
	double t_2 = (a / 3.0) / b;
	double t_3 = 2.0 * sqrt(x);
	double tmp;
	if (z < -1.3793337487235141e+129) {
		tmp = (t_3 * cos(((1.0 / y) - t_1))) - t_2;
	} else if (z < 3.516290613555987e+106) {
		tmp = ((sqrt(x) * 2.0) * cos((y - ((t / 3.0) * z)))) - t_2;
	} else {
		tmp = (cos((y - t_1)) * t_3) - ((a / b) / 3.0);
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: t_1
    real(8) :: t_2
    real(8) :: t_3
    real(8) :: tmp
    t_1 = (0.3333333333333333d0 / z) / t
    t_2 = (a / 3.0d0) / b
    t_3 = 2.0d0 * sqrt(x)
    if (z < (-1.3793337487235141d+129)) then
        tmp = (t_3 * cos(((1.0d0 / y) - t_1))) - t_2
    else if (z < 3.516290613555987d+106) then
        tmp = ((sqrt(x) * 2.0d0) * cos((y - ((t / 3.0d0) * z)))) - t_2
    else
        tmp = (cos((y - t_1)) * t_3) - ((a / b) / 3.0d0)
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = (0.3333333333333333 / z) / t;
	double t_2 = (a / 3.0) / b;
	double t_3 = 2.0 * Math.sqrt(x);
	double tmp;
	if (z < -1.3793337487235141e+129) {
		tmp = (t_3 * Math.cos(((1.0 / y) - t_1))) - t_2;
	} else if (z < 3.516290613555987e+106) {
		tmp = ((Math.sqrt(x) * 2.0) * Math.cos((y - ((t / 3.0) * z)))) - t_2;
	} else {
		tmp = (Math.cos((y - t_1)) * t_3) - ((a / b) / 3.0);
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = (0.3333333333333333 / z) / t
	t_2 = (a / 3.0) / b
	t_3 = 2.0 * math.sqrt(x)
	tmp = 0
	if z < -1.3793337487235141e+129:
		tmp = (t_3 * math.cos(((1.0 / y) - t_1))) - t_2
	elif z < 3.516290613555987e+106:
		tmp = ((math.sqrt(x) * 2.0) * math.cos((y - ((t / 3.0) * z)))) - t_2
	else:
		tmp = (math.cos((y - t_1)) * t_3) - ((a / b) / 3.0)
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(Float64(0.3333333333333333 / z) / t)
	t_2 = Float64(Float64(a / 3.0) / b)
	t_3 = Float64(2.0 * sqrt(x))
	tmp = 0.0
	if (z < -1.3793337487235141e+129)
		tmp = Float64(Float64(t_3 * cos(Float64(Float64(1.0 / y) - t_1))) - t_2);
	elseif (z < 3.516290613555987e+106)
		tmp = Float64(Float64(Float64(sqrt(x) * 2.0) * cos(Float64(y - Float64(Float64(t / 3.0) * z)))) - t_2);
	else
		tmp = Float64(Float64(cos(Float64(y - t_1)) * t_3) - Float64(Float64(a / b) / 3.0));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = (0.3333333333333333 / z) / t;
	t_2 = (a / 3.0) / b;
	t_3 = 2.0 * sqrt(x);
	tmp = 0.0;
	if (z < -1.3793337487235141e+129)
		tmp = (t_3 * cos(((1.0 / y) - t_1))) - t_2;
	elseif (z < 3.516290613555987e+106)
		tmp = ((sqrt(x) * 2.0) * cos((y - ((t / 3.0) * z)))) - t_2;
	else
		tmp = (cos((y - t_1)) * t_3) - ((a / b) / 3.0);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(N[(0.3333333333333333 / z), $MachinePrecision] / t), $MachinePrecision]}, Block[{t$95$2 = N[(N[(a / 3.0), $MachinePrecision] / b), $MachinePrecision]}, Block[{t$95$3 = N[(2.0 * N[Sqrt[x], $MachinePrecision]), $MachinePrecision]}, If[Less[z, -1.3793337487235141e+129], N[(N[(t$95$3 * N[Cos[N[(N[(1.0 / y), $MachinePrecision] - t$95$1), $MachinePrecision]], $MachinePrecision]), $MachinePrecision] - t$95$2), $MachinePrecision], If[Less[z, 3.516290613555987e+106], N[(N[(N[(N[Sqrt[x], $MachinePrecision] * 2.0), $MachinePrecision] * N[Cos[N[(y - N[(N[(t / 3.0), $MachinePrecision] * z), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision] - t$95$2), $MachinePrecision], N[(N[(N[Cos[N[(y - t$95$1), $MachinePrecision]], $MachinePrecision] * t$95$3), $MachinePrecision] - N[(N[(a / b), $MachinePrecision] / 3.0), $MachinePrecision]), $MachinePrecision]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \frac{\frac{0.3333333333333333}{z}}{t}\\
t_2 := \frac{\frac{a}{3}}{b}\\
t_3 := 2 \cdot \sqrt{x}\\
\mathbf{if}\;z < -1.3793337487235141 \cdot 10^{+129}:\\
\;\;\;\;t_3 \cdot \cos \left(\frac{1}{y} - t_1\right) - t_2\\

\mathbf{elif}\;z < 3.516290613555987 \cdot 10^{+106}:\\
\;\;\;\;\left(\sqrt{x} \cdot 2\right) \cdot \cos \left(y - \frac{t}{3} \cdot z\right) - t_2\\

\mathbf{else}:\\
\;\;\;\;\cos \left(y - t_1\right) \cdot t_3 - \frac{\frac{a}{b}}{3}\\


\end{array}
\end{array}

Reproduce

?
herbie shell --seed 2023238 
(FPCore (x y z t a b)
  :name "Diagrams.Solve.Polynomial:cubForm  from diagrams-solve-0.1, K"
  :precision binary64

  :herbie-target
  (if (< z -1.3793337487235141e+129) (- (* (* 2.0 (sqrt x)) (cos (- (/ 1.0 y) (/ (/ 0.3333333333333333 z) t)))) (/ (/ a 3.0) b)) (if (< z 3.516290613555987e+106) (- (* (* (sqrt x) 2.0) (cos (- y (* (/ t 3.0) z)))) (/ (/ a 3.0) b)) (- (* (cos (- y (/ (/ 0.3333333333333333 z) t))) (* 2.0 (sqrt x))) (/ (/ a b) 3.0))))

  (- (* (* 2.0 (sqrt x)) (cos (- y (/ (* z t) 3.0)))) (/ a (* b 3.0))))