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

Percentage Accurate: 69.8% → 76.7%
Time: 19.2s
Alternatives: 10
Speedup: 1.2×

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 10 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: 69.8% 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: 76.7% accurate, 1.1× speedup?

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

\\
\left(2 \cdot \sqrt{x}\right) \cdot \cos y - \frac{a}{3 \cdot b}
\end{array}
Derivation
  1. Initial program 72.8%

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

    \[\leadsto \left(2 \cdot \sqrt{x}\right) \cdot \color{blue}{\cos y} - \frac{a}{b \cdot 3} \]
  4. Step-by-step derivation
    1. lower-cos.f6477.8

      \[\leadsto \left(2 \cdot \sqrt{x}\right) \cdot \color{blue}{\cos y} - \frac{a}{b \cdot 3} \]
  5. Applied rewrites77.8%

    \[\leadsto \left(2 \cdot \sqrt{x}\right) \cdot \color{blue}{\cos y} - \frac{a}{b \cdot 3} \]
  6. Final simplification77.8%

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

Alternative 2: 67.4% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{a}{3 \cdot b}\\ \mathbf{if}\;t\_1 \leq -2 \cdot 10^{-62}:\\ \;\;\;\;\frac{\frac{a}{-3}}{b}\\ \mathbf{elif}\;t\_1 \leq 5 \cdot 10^{+26}:\\ \;\;\;\;\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(\mathsf{fma}\left(t, z \cdot -0.3333333333333333, y\right)\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{\frac{a}{b}}{-3}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (/ a (* 3.0 b))))
   (if (<= t_1 -2e-62)
     (/ (/ a -3.0) b)
     (if (<= t_1 5e+26)
       (* (* 2.0 (sqrt x)) (cos (fma t (* z -0.3333333333333333) y)))
       (/ (/ a b) -3.0)))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = a / (3.0 * b);
	double tmp;
	if (t_1 <= -2e-62) {
		tmp = (a / -3.0) / b;
	} else if (t_1 <= 5e+26) {
		tmp = (2.0 * sqrt(x)) * cos(fma(t, (z * -0.3333333333333333), y));
	} else {
		tmp = (a / b) / -3.0;
	}
	return tmp;
}
function code(x, y, z, t, a, b)
	t_1 = Float64(a / Float64(3.0 * b))
	tmp = 0.0
	if (t_1 <= -2e-62)
		tmp = Float64(Float64(a / -3.0) / b);
	elseif (t_1 <= 5e+26)
		tmp = Float64(Float64(2.0 * sqrt(x)) * cos(fma(t, Float64(z * -0.3333333333333333), y)));
	else
		tmp = Float64(Float64(a / b) / -3.0);
	end
	return tmp
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(a / N[(3.0 * b), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$1, -2e-62], N[(N[(a / -3.0), $MachinePrecision] / b), $MachinePrecision], If[LessEqual[t$95$1, 5e+26], N[(N[(2.0 * N[Sqrt[x], $MachinePrecision]), $MachinePrecision] * N[Cos[N[(t * N[(z * -0.3333333333333333), $MachinePrecision] + y), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], N[(N[(a / b), $MachinePrecision] / -3.0), $MachinePrecision]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \frac{a}{3 \cdot b}\\
\mathbf{if}\;t\_1 \leq -2 \cdot 10^{-62}:\\
\;\;\;\;\frac{\frac{a}{-3}}{b}\\

\mathbf{elif}\;t\_1 \leq 5 \cdot 10^{+26}:\\
\;\;\;\;\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(\mathsf{fma}\left(t, z \cdot -0.3333333333333333, y\right)\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if (/.f64 a (*.f64 b #s(literal 3 binary64))) < -2.0000000000000001e-62

    1. Initial program 86.2%

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

      \[\leadsto \color{blue}{\frac{-1}{3} \cdot \frac{a}{b}} \]
    4. Step-by-step derivation
      1. *-commutativeN/A

        \[\leadsto \color{blue}{\frac{a}{b} \cdot \frac{-1}{3}} \]
      2. lower-*.f64N/A

        \[\leadsto \color{blue}{\frac{a}{b} \cdot \frac{-1}{3}} \]
      3. lower-/.f6482.2

        \[\leadsto \color{blue}{\frac{a}{b}} \cdot -0.3333333333333333 \]
    5. Applied rewrites82.2%

      \[\leadsto \color{blue}{\frac{a}{b} \cdot -0.3333333333333333} \]
    6. Step-by-step derivation
      1. Applied rewrites82.2%

        \[\leadsto \color{blue}{\frac{a}{b \cdot -3}} \]
      2. Step-by-step derivation
        1. Applied rewrites82.3%

          \[\leadsto \frac{\frac{a}{-3}}{\color{blue}{b}} \]

        if -2.0000000000000001e-62 < (/.f64 a (*.f64 b #s(literal 3 binary64))) < 5.0000000000000001e26

        1. Initial program 57.0%

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

          \[\leadsto \color{blue}{2 \cdot \left(\sqrt{x} \cdot \cos \left(y - \frac{1}{3} \cdot \left(t \cdot z\right)\right)\right)} \]
        4. Applied rewrites51.0%

          \[\leadsto \color{blue}{\cos \left(\mathsf{fma}\left(t, z \cdot -0.3333333333333333, y\right)\right) \cdot \left(2 \cdot \sqrt{x}\right)} \]

        if 5.0000000000000001e26 < (/.f64 a (*.f64 b #s(literal 3 binary64)))

        1. Initial program 88.2%

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

          \[\leadsto \color{blue}{\frac{-1}{3} \cdot \frac{a}{b}} \]
        4. Step-by-step derivation
          1. *-commutativeN/A

            \[\leadsto \color{blue}{\frac{a}{b} \cdot \frac{-1}{3}} \]
          2. lower-*.f64N/A

            \[\leadsto \color{blue}{\frac{a}{b} \cdot \frac{-1}{3}} \]
          3. lower-/.f6491.3

            \[\leadsto \color{blue}{\frac{a}{b}} \cdot -0.3333333333333333 \]
        5. Applied rewrites91.3%

          \[\leadsto \color{blue}{\frac{a}{b} \cdot -0.3333333333333333} \]
        6. Step-by-step derivation
          1. Applied rewrites91.6%

            \[\leadsto \frac{\frac{a}{b}}{\color{blue}{-3}} \]
        7. Recombined 3 regimes into one program.
        8. Final simplification69.6%

          \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{a}{3 \cdot b} \leq -2 \cdot 10^{-62}:\\ \;\;\;\;\frac{\frac{a}{-3}}{b}\\ \mathbf{elif}\;\frac{a}{3 \cdot b} \leq 5 \cdot 10^{+26}:\\ \;\;\;\;\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(\mathsf{fma}\left(t, z \cdot -0.3333333333333333, y\right)\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{\frac{a}{b}}{-3}\\ \end{array} \]
        9. Add Preprocessing

        Alternative 3: 76.7% accurate, 1.2× speedup?

        \[\begin{array}{l} \\ \mathsf{fma}\left(a, \frac{-0.3333333333333333}{b}, \left(2 \cdot \sqrt{x}\right) \cdot \cos y\right) \end{array} \]
        (FPCore (x y z t a b)
         :precision binary64
         (fma a (/ -0.3333333333333333 b) (* (* 2.0 (sqrt x)) (cos y))))
        double code(double x, double y, double z, double t, double a, double b) {
        	return fma(a, (-0.3333333333333333 / b), ((2.0 * sqrt(x)) * cos(y)));
        }
        
        function code(x, y, z, t, a, b)
        	return fma(a, Float64(-0.3333333333333333 / b), Float64(Float64(2.0 * sqrt(x)) * cos(y)))
        end
        
        code[x_, y_, z_, t_, a_, b_] := N[(a * N[(-0.3333333333333333 / b), $MachinePrecision] + N[(N[(2.0 * N[Sqrt[x], $MachinePrecision]), $MachinePrecision] * N[Cos[y], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
        
        \begin{array}{l}
        
        \\
        \mathsf{fma}\left(a, \frac{-0.3333333333333333}{b}, \left(2 \cdot \sqrt{x}\right) \cdot \cos y\right)
        \end{array}
        
        Derivation
        1. Initial program 72.8%

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

          \[\leadsto \left(2 \cdot \sqrt{x}\right) \cdot \color{blue}{\cos y} - \frac{a}{b \cdot 3} \]
        4. Step-by-step derivation
          1. lower-cos.f6477.8

            \[\leadsto \left(2 \cdot \sqrt{x}\right) \cdot \color{blue}{\cos y} - \frac{a}{b \cdot 3} \]
        5. Applied rewrites77.8%

          \[\leadsto \left(2 \cdot \sqrt{x}\right) \cdot \color{blue}{\cos y} - \frac{a}{b \cdot 3} \]
        6. Step-by-step derivation
          1. lift--.f64N/A

            \[\leadsto \color{blue}{\left(2 \cdot \sqrt{x}\right) \cdot \cos y - \frac{a}{b \cdot 3}} \]
          2. sub-negN/A

            \[\leadsto \color{blue}{\left(2 \cdot \sqrt{x}\right) \cdot \cos y + \left(\mathsf{neg}\left(\frac{a}{b \cdot 3}\right)\right)} \]
          3. +-commutativeN/A

            \[\leadsto \color{blue}{\left(\mathsf{neg}\left(\frac{a}{b \cdot 3}\right)\right) + \left(2 \cdot \sqrt{x}\right) \cdot \cos y} \]
          4. lift-/.f64N/A

            \[\leadsto \left(\mathsf{neg}\left(\color{blue}{\frac{a}{b \cdot 3}}\right)\right) + \left(2 \cdot \sqrt{x}\right) \cdot \cos y \]
          5. distribute-neg-fracN/A

            \[\leadsto \color{blue}{\frac{\mathsf{neg}\left(a\right)}{b \cdot 3}} + \left(2 \cdot \sqrt{x}\right) \cdot \cos y \]
          6. neg-mul-1N/A

            \[\leadsto \frac{\color{blue}{-1 \cdot a}}{b \cdot 3} + \left(2 \cdot \sqrt{x}\right) \cdot \cos y \]
          7. lift-*.f64N/A

            \[\leadsto \frac{-1 \cdot a}{\color{blue}{b \cdot 3}} + \left(2 \cdot \sqrt{x}\right) \cdot \cos y \]
          8. *-commutativeN/A

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

            \[\leadsto \color{blue}{\frac{-1}{3} \cdot \frac{a}{b}} + \left(2 \cdot \sqrt{x}\right) \cdot \cos y \]
          10. metadata-evalN/A

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

            \[\leadsto \color{blue}{\frac{\frac{-1}{3} \cdot a}{b}} + \left(2 \cdot \sqrt{x}\right) \cdot \cos y \]
          12. *-commutativeN/A

            \[\leadsto \frac{\color{blue}{a \cdot \frac{-1}{3}}}{b} + \left(2 \cdot \sqrt{x}\right) \cdot \cos y \]
          13. associate-/l*N/A

            \[\leadsto \color{blue}{a \cdot \frac{\frac{-1}{3}}{b}} + \left(2 \cdot \sqrt{x}\right) \cdot \cos y \]
          14. lower-fma.f64N/A

            \[\leadsto \color{blue}{\mathsf{fma}\left(a, \frac{\frac{-1}{3}}{b}, \left(2 \cdot \sqrt{x}\right) \cdot \cos y\right)} \]
          15. lower-/.f6477.8

            \[\leadsto \mathsf{fma}\left(a, \color{blue}{\frac{-0.3333333333333333}{b}}, \left(2 \cdot \sqrt{x}\right) \cdot \cos y\right) \]
        7. Applied rewrites77.8%

          \[\leadsto \color{blue}{\mathsf{fma}\left(a, \frac{-0.3333333333333333}{b}, \left(2 \cdot \sqrt{x}\right) \cdot \cos y\right)} \]
        8. Add Preprocessing

        Alternative 4: 76.6% accurate, 1.2× speedup?

        \[\begin{array}{l} \\ \mathsf{fma}\left(2, \sqrt{x} \cdot \cos y, -0.3333333333333333 \cdot \frac{a}{b}\right) \end{array} \]
        (FPCore (x y z t a b)
         :precision binary64
         (fma 2.0 (* (sqrt x) (cos y)) (* -0.3333333333333333 (/ a b))))
        double code(double x, double y, double z, double t, double a, double b) {
        	return fma(2.0, (sqrt(x) * cos(y)), (-0.3333333333333333 * (a / b)));
        }
        
        function code(x, y, z, t, a, b)
        	return fma(2.0, Float64(sqrt(x) * cos(y)), Float64(-0.3333333333333333 * Float64(a / b)))
        end
        
        code[x_, y_, z_, t_, a_, b_] := N[(2.0 * N[(N[Sqrt[x], $MachinePrecision] * N[Cos[y], $MachinePrecision]), $MachinePrecision] + N[(-0.3333333333333333 * N[(a / b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
        
        \begin{array}{l}
        
        \\
        \mathsf{fma}\left(2, \sqrt{x} \cdot \cos y, -0.3333333333333333 \cdot \frac{a}{b}\right)
        \end{array}
        
        Derivation
        1. Initial program 72.8%

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

          \[\leadsto \color{blue}{2 \cdot \left(\sqrt{x} \cdot \cos y\right) - \frac{1}{3} \cdot \frac{a}{b}} \]
        4. Step-by-step derivation
          1. cancel-sign-sub-invN/A

            \[\leadsto \color{blue}{2 \cdot \left(\sqrt{x} \cdot \cos y\right) + \left(\mathsf{neg}\left(\frac{1}{3}\right)\right) \cdot \frac{a}{b}} \]
          2. metadata-evalN/A

            \[\leadsto 2 \cdot \left(\sqrt{x} \cdot \cos y\right) + \color{blue}{\frac{-1}{3}} \cdot \frac{a}{b} \]
          3. lower-fma.f64N/A

            \[\leadsto \color{blue}{\mathsf{fma}\left(2, \sqrt{x} \cdot \cos y, \frac{-1}{3} \cdot \frac{a}{b}\right)} \]
          4. lower-*.f64N/A

            \[\leadsto \mathsf{fma}\left(2, \color{blue}{\sqrt{x} \cdot \cos y}, \frac{-1}{3} \cdot \frac{a}{b}\right) \]
          5. lower-sqrt.f64N/A

            \[\leadsto \mathsf{fma}\left(2, \color{blue}{\sqrt{x}} \cdot \cos y, \frac{-1}{3} \cdot \frac{a}{b}\right) \]
          6. lower-cos.f64N/A

            \[\leadsto \mathsf{fma}\left(2, \sqrt{x} \cdot \color{blue}{\cos y}, \frac{-1}{3} \cdot \frac{a}{b}\right) \]
          7. *-commutativeN/A

            \[\leadsto \mathsf{fma}\left(2, \sqrt{x} \cdot \cos y, \color{blue}{\frac{a}{b} \cdot \frac{-1}{3}}\right) \]
          8. lower-*.f64N/A

            \[\leadsto \mathsf{fma}\left(2, \sqrt{x} \cdot \cos y, \color{blue}{\frac{a}{b} \cdot \frac{-1}{3}}\right) \]
          9. lower-/.f6477.8

            \[\leadsto \mathsf{fma}\left(2, \sqrt{x} \cdot \cos y, \color{blue}{\frac{a}{b}} \cdot -0.3333333333333333\right) \]
        5. Applied rewrites77.8%

          \[\leadsto \color{blue}{\mathsf{fma}\left(2, \sqrt{x} \cdot \cos y, \frac{a}{b} \cdot -0.3333333333333333\right)} \]
        6. Final simplification77.8%

          \[\leadsto \mathsf{fma}\left(2, \sqrt{x} \cdot \cos y, -0.3333333333333333 \cdot \frac{a}{b}\right) \]
        7. Add Preprocessing

        Alternative 5: 50.5% accurate, 6.9× speedup?

        \[\begin{array}{l} \\ \frac{\frac{a}{b}}{-3} \end{array} \]
        (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(Float64(a / 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[(N[(a / b), $MachinePrecision] / -3.0), $MachinePrecision]
        
        \begin{array}{l}
        
        \\
        \frac{\frac{a}{b}}{-3}
        \end{array}
        
        Derivation
        1. Initial program 72.8%

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

          \[\leadsto \color{blue}{\frac{-1}{3} \cdot \frac{a}{b}} \]
        4. Step-by-step derivation
          1. *-commutativeN/A

            \[\leadsto \color{blue}{\frac{a}{b} \cdot \frac{-1}{3}} \]
          2. lower-*.f64N/A

            \[\leadsto \color{blue}{\frac{a}{b} \cdot \frac{-1}{3}} \]
          3. lower-/.f6450.2

            \[\leadsto \color{blue}{\frac{a}{b}} \cdot -0.3333333333333333 \]
        5. Applied rewrites50.2%

          \[\leadsto \color{blue}{\frac{a}{b} \cdot -0.3333333333333333} \]
        6. Step-by-step derivation
          1. Applied rewrites50.2%

            \[\leadsto \frac{\frac{a}{b}}{\color{blue}{-3}} \]
          2. Add Preprocessing

          Alternative 6: 50.5% accurate, 6.9× speedup?

          \[\begin{array}{l} \\ \frac{\frac{a}{-3}}{b} \end{array} \]
          (FPCore (x y z t a b) :precision binary64 (/ (/ a -3.0) b))
          double code(double x, double y, double z, double t, double a, double b) {
          	return (a / -3.0) / b;
          }
          
          real(8) function code(x, y, z, t, a, b)
              real(8), intent (in) :: x
              real(8), intent (in) :: y
              real(8), intent (in) :: z
              real(8), intent (in) :: t
              real(8), intent (in) :: a
              real(8), intent (in) :: b
              code = (a / (-3.0d0)) / b
          end function
          
          public static double code(double x, double y, double z, double t, double a, double b) {
          	return (a / -3.0) / b;
          }
          
          def code(x, y, z, t, a, b):
          	return (a / -3.0) / b
          
          function code(x, y, z, t, a, b)
          	return Float64(Float64(a / -3.0) / b)
          end
          
          function tmp = code(x, y, z, t, a, b)
          	tmp = (a / -3.0) / b;
          end
          
          code[x_, y_, z_, t_, a_, b_] := N[(N[(a / -3.0), $MachinePrecision] / b), $MachinePrecision]
          
          \begin{array}{l}
          
          \\
          \frac{\frac{a}{-3}}{b}
          \end{array}
          
          Derivation
          1. Initial program 72.8%

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

            \[\leadsto \color{blue}{\frac{-1}{3} \cdot \frac{a}{b}} \]
          4. Step-by-step derivation
            1. *-commutativeN/A

              \[\leadsto \color{blue}{\frac{a}{b} \cdot \frac{-1}{3}} \]
            2. lower-*.f64N/A

              \[\leadsto \color{blue}{\frac{a}{b} \cdot \frac{-1}{3}} \]
            3. lower-/.f6450.2

              \[\leadsto \color{blue}{\frac{a}{b}} \cdot -0.3333333333333333 \]
          5. Applied rewrites50.2%

            \[\leadsto \color{blue}{\frac{a}{b} \cdot -0.3333333333333333} \]
          6. Step-by-step derivation
            1. Applied rewrites50.2%

              \[\leadsto \color{blue}{\frac{a}{b \cdot -3}} \]
            2. Step-by-step derivation
              1. Applied rewrites50.2%

                \[\leadsto \frac{\frac{a}{-3}}{\color{blue}{b}} \]
              2. Add Preprocessing

              Alternative 7: 50.4% accurate, 6.9× speedup?

              \[\begin{array}{l} \\ \frac{-0.3333333333333333}{\frac{b}{a}} \end{array} \]
              (FPCore (x y z t a b) :precision binary64 (/ -0.3333333333333333 (/ b a)))
              double code(double x, double y, double z, double t, double a, double b) {
              	return -0.3333333333333333 / (b / a);
              }
              
              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 = (-0.3333333333333333d0) / (b / a)
              end function
              
              public static double code(double x, double y, double z, double t, double a, double b) {
              	return -0.3333333333333333 / (b / a);
              }
              
              def code(x, y, z, t, a, b):
              	return -0.3333333333333333 / (b / a)
              
              function code(x, y, z, t, a, b)
              	return Float64(-0.3333333333333333 / Float64(b / a))
              end
              
              function tmp = code(x, y, z, t, a, b)
              	tmp = -0.3333333333333333 / (b / a);
              end
              
              code[x_, y_, z_, t_, a_, b_] := N[(-0.3333333333333333 / N[(b / a), $MachinePrecision]), $MachinePrecision]
              
              \begin{array}{l}
              
              \\
              \frac{-0.3333333333333333}{\frac{b}{a}}
              \end{array}
              
              Derivation
              1. Initial program 72.8%

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

                \[\leadsto \color{blue}{\frac{-1}{3} \cdot \frac{a}{b}} \]
              4. Step-by-step derivation
                1. *-commutativeN/A

                  \[\leadsto \color{blue}{\frac{a}{b} \cdot \frac{-1}{3}} \]
                2. lower-*.f64N/A

                  \[\leadsto \color{blue}{\frac{a}{b} \cdot \frac{-1}{3}} \]
                3. lower-/.f6450.2

                  \[\leadsto \color{blue}{\frac{a}{b}} \cdot -0.3333333333333333 \]
              5. Applied rewrites50.2%

                \[\leadsto \color{blue}{\frac{a}{b} \cdot -0.3333333333333333} \]
              6. Step-by-step derivation
                1. Applied rewrites50.2%

                  \[\leadsto \frac{-0.3333333333333333}{\color{blue}{\frac{b}{a}}} \]
                2. Add Preprocessing

                Alternative 8: 50.5% accurate, 9.4× 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 72.8%

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

                  \[\leadsto \color{blue}{\frac{-1}{3} \cdot \frac{a}{b}} \]
                4. Step-by-step derivation
                  1. *-commutativeN/A

                    \[\leadsto \color{blue}{\frac{a}{b} \cdot \frac{-1}{3}} \]
                  2. lower-*.f64N/A

                    \[\leadsto \color{blue}{\frac{a}{b} \cdot \frac{-1}{3}} \]
                  3. lower-/.f6450.2

                    \[\leadsto \color{blue}{\frac{a}{b}} \cdot -0.3333333333333333 \]
                5. Applied rewrites50.2%

                  \[\leadsto \color{blue}{\frac{a}{b} \cdot -0.3333333333333333} \]
                6. Step-by-step derivation
                  1. Applied rewrites50.2%

                    \[\leadsto \color{blue}{\frac{a}{b \cdot -3}} \]
                  2. Add Preprocessing

                  Alternative 9: 50.4% accurate, 9.4× speedup?

                  \[\begin{array}{l} \\ -0.3333333333333333 \cdot \frac{a}{b} \end{array} \]
                  (FPCore (x y z t a b) :precision binary64 (* -0.3333333333333333 (/ a b)))
                  double code(double x, double y, double z, double t, double a, double b) {
                  	return -0.3333333333333333 * (a / 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 = (-0.3333333333333333d0) * (a / b)
                  end function
                  
                  public static double code(double x, double y, double z, double t, double a, double b) {
                  	return -0.3333333333333333 * (a / b);
                  }
                  
                  def code(x, y, z, t, a, b):
                  	return -0.3333333333333333 * (a / b)
                  
                  function code(x, y, z, t, a, b)
                  	return Float64(-0.3333333333333333 * Float64(a / b))
                  end
                  
                  function tmp = code(x, y, z, t, a, b)
                  	tmp = -0.3333333333333333 * (a / b);
                  end
                  
                  code[x_, y_, z_, t_, a_, b_] := N[(-0.3333333333333333 * N[(a / b), $MachinePrecision]), $MachinePrecision]
                  
                  \begin{array}{l}
                  
                  \\
                  -0.3333333333333333 \cdot \frac{a}{b}
                  \end{array}
                  
                  Derivation
                  1. Initial program 72.8%

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

                    \[\leadsto \color{blue}{\frac{-1}{3} \cdot \frac{a}{b}} \]
                  4. Step-by-step derivation
                    1. *-commutativeN/A

                      \[\leadsto \color{blue}{\frac{a}{b} \cdot \frac{-1}{3}} \]
                    2. lower-*.f64N/A

                      \[\leadsto \color{blue}{\frac{a}{b} \cdot \frac{-1}{3}} \]
                    3. lower-/.f6450.2

                      \[\leadsto \color{blue}{\frac{a}{b}} \cdot -0.3333333333333333 \]
                  5. Applied rewrites50.2%

                    \[\leadsto \color{blue}{\frac{a}{b} \cdot -0.3333333333333333} \]
                  6. Final simplification50.2%

                    \[\leadsto -0.3333333333333333 \cdot \frac{a}{b} \]
                  7. Add Preprocessing

                  Alternative 10: 50.4% accurate, 9.4× 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 72.8%

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

                    \[\leadsto \color{blue}{\frac{-1}{3} \cdot \frac{a}{b}} \]
                  4. Step-by-step derivation
                    1. *-commutativeN/A

                      \[\leadsto \color{blue}{\frac{a}{b} \cdot \frac{-1}{3}} \]
                    2. lower-*.f64N/A

                      \[\leadsto \color{blue}{\frac{a}{b} \cdot \frac{-1}{3}} \]
                    3. lower-/.f6450.2

                      \[\leadsto \color{blue}{\frac{a}{b}} \cdot -0.3333333333333333 \]
                  5. Applied rewrites50.2%

                    \[\leadsto \color{blue}{\frac{a}{b} \cdot -0.3333333333333333} \]
                  6. Step-by-step derivation
                    1. Applied rewrites50.2%

                      \[\leadsto a \cdot \color{blue}{\frac{-0.3333333333333333}{b}} \]
                    2. Add Preprocessing

                    Developer Target 1: 74.4% accurate, 0.8× 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 2024219 
                    (FPCore (x y z t a b)
                      :name "Diagrams.Solve.Polynomial:cubForm  from diagrams-solve-0.1, K"
                      :precision binary64
                    
                      :alt
                      (! :herbie-platform default (if (< z -1379333748723514100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) (- (* (* 2 (sqrt x)) (cos (- (/ 1 y) (/ (/ 3333333333333333/10000000000000000 z) t)))) (/ (/ a 3) b)) (if (< z 35162906135559870000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) (- (* (* (sqrt x) 2) (cos (- y (* (/ t 3) z)))) (/ (/ a 3) b)) (- (* (cos (- y (/ (/ 3333333333333333/10000000000000000 z) t))) (* 2 (sqrt x))) (/ (/ a b) 3)))))
                    
                      (- (* (* 2.0 (sqrt x)) (cos (- y (/ (* z t) 3.0)))) (/ a (* b 3.0))))