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

Percentage Accurate: 70.5% → 77.3%
Time: 17.8s
Alternatives: 9
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 9 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: 70.5% 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: 77.3% accurate, 0.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{a}{b \cdot -3}\\ t_2 := \sqrt{x} \cdot 2\\ \mathbf{if}\;t\_2 \cdot \cos \left(y - \frac{t \cdot z}{3}\right) \leq 5 \cdot 10^{+146}:\\ \;\;\;\;\mathsf{fma}\left(\cos \left(\left(t \cdot z\right) \cdot -0.3333333333333333\right) \cdot t\_2, \cos y, \mathsf{fma}\left(t\_2, \sin y \cdot \sin \left(0.3333333333333333 \cdot \left(t \cdot z\right)\right), t\_1\right)\right)\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left({x}^{0.25}, \left(1 \cdot 2\right) \cdot {x}^{0.25}, t\_1\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (/ a (* b -3.0))) (t_2 (* (sqrt x) 2.0)))
   (if (<= (* t_2 (cos (- y (/ (* t z) 3.0)))) 5e+146)
     (fma
      (* (cos (* (* t z) -0.3333333333333333)) t_2)
      (cos y)
      (fma t_2 (* (sin y) (sin (* 0.3333333333333333 (* t z)))) t_1))
     (fma (pow x 0.25) (* (* 1.0 2.0) (pow x 0.25)) t_1))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = a / (b * -3.0);
	double t_2 = sqrt(x) * 2.0;
	double tmp;
	if ((t_2 * cos((y - ((t * z) / 3.0)))) <= 5e+146) {
		tmp = fma((cos(((t * z) * -0.3333333333333333)) * t_2), cos(y), fma(t_2, (sin(y) * sin((0.3333333333333333 * (t * z)))), t_1));
	} else {
		tmp = fma(pow(x, 0.25), ((1.0 * 2.0) * pow(x, 0.25)), t_1);
	}
	return tmp;
}
function code(x, y, z, t, a, b)
	t_1 = Float64(a / Float64(b * -3.0))
	t_2 = Float64(sqrt(x) * 2.0)
	tmp = 0.0
	if (Float64(t_2 * cos(Float64(y - Float64(Float64(t * z) / 3.0)))) <= 5e+146)
		tmp = fma(Float64(cos(Float64(Float64(t * z) * -0.3333333333333333)) * t_2), cos(y), fma(t_2, Float64(sin(y) * sin(Float64(0.3333333333333333 * Float64(t * z)))), t_1));
	else
		tmp = fma((x ^ 0.25), Float64(Float64(1.0 * 2.0) * (x ^ 0.25)), t_1);
	end
	return tmp
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(a / N[(b * -3.0), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(N[Sqrt[x], $MachinePrecision] * 2.0), $MachinePrecision]}, If[LessEqual[N[(t$95$2 * N[Cos[N[(y - N[(N[(t * z), $MachinePrecision] / 3.0), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], 5e+146], N[(N[(N[Cos[N[(N[(t * z), $MachinePrecision] * -0.3333333333333333), $MachinePrecision]], $MachinePrecision] * t$95$2), $MachinePrecision] * N[Cos[y], $MachinePrecision] + N[(t$95$2 * N[(N[Sin[y], $MachinePrecision] * N[Sin[N[(0.3333333333333333 * N[(t * z), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision] + t$95$1), $MachinePrecision]), $MachinePrecision], N[(N[Power[x, 0.25], $MachinePrecision] * N[(N[(1.0 * 2.0), $MachinePrecision] * N[Power[x, 0.25], $MachinePrecision]), $MachinePrecision] + t$95$1), $MachinePrecision]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \frac{a}{b \cdot -3}\\
t_2 := \sqrt{x} \cdot 2\\
\mathbf{if}\;t\_2 \cdot \cos \left(y - \frac{t \cdot z}{3}\right) \leq 5 \cdot 10^{+146}:\\
\;\;\;\;\mathsf{fma}\left(\cos \left(\left(t \cdot z\right) \cdot -0.3333333333333333\right) \cdot t\_2, \cos y, \mathsf{fma}\left(t\_2, \sin y \cdot \sin \left(0.3333333333333333 \cdot \left(t \cdot z\right)\right), t\_1\right)\right)\\

\mathbf{else}:\\
\;\;\;\;\mathsf{fma}\left({x}^{0.25}, \left(1 \cdot 2\right) \cdot {x}^{0.25}, t\_1\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (*.f64 (*.f64 #s(literal 2 binary64) (sqrt.f64 x)) (cos.f64 (-.f64 y (/.f64 (*.f64 z t) #s(literal 3 binary64))))) < 4.9999999999999999e146

    1. Initial program 81.8%

      \[\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - \frac{a}{b \cdot 3} \]
    2. Add Preprocessing
    3. Applied rewrites82.4%

      \[\leadsto \color{blue}{\mathsf{fma}\left(\left(\sqrt{x} \cdot 2\right) \cdot \cos \left(-0.3333333333333333 \cdot \left(t \cdot z\right)\right), \cos y, \mathsf{fma}\left(\sqrt{x} \cdot 2, \sin \left(0.3333333333333333 \cdot \left(t \cdot z\right)\right) \cdot \sin y, \frac{a}{-3 \cdot b}\right)\right)} \]

    if 4.9999999999999999e146 < (*.f64 (*.f64 #s(literal 2 binary64) (sqrt.f64 x)) (cos.f64 (-.f64 y (/.f64 (*.f64 z t) #s(literal 3 binary64)))))

    1. Initial program 18.4%

      \[\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - \frac{a}{b \cdot 3} \]
    2. Add Preprocessing
    3. Step-by-step derivation
      1. lift--.f64N/A

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

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

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

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

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

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

        \[\leadsto \color{blue}{\sqrt{x}} \cdot \left(2 \cdot \cos \left(y - \frac{z \cdot t}{3}\right)\right) + \left(\mathsf{neg}\left(\frac{a}{b \cdot 3}\right)\right) \]
      8. pow1/2N/A

        \[\leadsto \color{blue}{{x}^{\frac{1}{2}}} \cdot \left(2 \cdot \cos \left(y - \frac{z \cdot t}{3}\right)\right) + \left(\mathsf{neg}\left(\frac{a}{b \cdot 3}\right)\right) \]
      9. sqr-powN/A

        \[\leadsto \color{blue}{\left({x}^{\left(\frac{\frac{1}{2}}{2}\right)} \cdot {x}^{\left(\frac{\frac{1}{2}}{2}\right)}\right)} \cdot \left(2 \cdot \cos \left(y - \frac{z \cdot t}{3}\right)\right) + \left(\mathsf{neg}\left(\frac{a}{b \cdot 3}\right)\right) \]
      10. associate-*l*N/A

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

        \[\leadsto \color{blue}{\mathsf{fma}\left({x}^{\left(\frac{\frac{1}{2}}{2}\right)}, {x}^{\left(\frac{\frac{1}{2}}{2}\right)} \cdot \left(2 \cdot \cos \left(y - \frac{z \cdot t}{3}\right)\right), \mathsf{neg}\left(\frac{a}{b \cdot 3}\right)\right)} \]
    4. Applied rewrites18.4%

      \[\leadsto \color{blue}{\mathsf{fma}\left({x}^{0.25}, {x}^{0.25} \cdot \left(2 \cdot \cos \left(\mathsf{fma}\left(-0.3333333333333333, t \cdot z, y\right)\right)\right), \frac{a}{-3 \cdot b}\right)} \]
    5. Taylor expanded in y around 0

      \[\leadsto \mathsf{fma}\left({x}^{\frac{1}{4}}, {x}^{\frac{1}{4}} \cdot \left(2 \cdot \color{blue}{\cos \left(\frac{-1}{3} \cdot \left(t \cdot z\right)\right)}\right), \frac{a}{-3 \cdot b}\right) \]
    6. Step-by-step derivation
      1. lower-cos.f64N/A

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

        \[\leadsto \mathsf{fma}\left({x}^{\frac{1}{4}}, {x}^{\frac{1}{4}} \cdot \left(2 \cdot \cos \color{blue}{\left(\frac{-1}{3} \cdot \left(t \cdot z\right)\right)}\right), \frac{a}{-3 \cdot b}\right) \]
      3. lower-*.f6418.4

        \[\leadsto \mathsf{fma}\left({x}^{0.25}, {x}^{0.25} \cdot \left(2 \cdot \cos \left(-0.3333333333333333 \cdot \color{blue}{\left(t \cdot z\right)}\right)\right), \frac{a}{-3 \cdot b}\right) \]
    7. Applied rewrites18.4%

      \[\leadsto \mathsf{fma}\left({x}^{0.25}, {x}^{0.25} \cdot \left(2 \cdot \color{blue}{\cos \left(-0.3333333333333333 \cdot \left(t \cdot z\right)\right)}\right), \frac{a}{-3 \cdot b}\right) \]
    8. Taylor expanded in z around 0

      \[\leadsto \mathsf{fma}\left({x}^{\frac{1}{4}}, {x}^{\frac{1}{4}} \cdot \left(2 \cdot 1\right), \frac{a}{-3 \cdot b}\right) \]
    9. Step-by-step derivation
      1. Applied rewrites66.4%

        \[\leadsto \mathsf{fma}\left({x}^{0.25}, {x}^{0.25} \cdot \left(2 \cdot 1\right), \frac{a}{-3 \cdot b}\right) \]
    10. Recombined 2 regimes into one program.
    11. Final simplification80.0%

      \[\leadsto \begin{array}{l} \mathbf{if}\;\left(\sqrt{x} \cdot 2\right) \cdot \cos \left(y - \frac{t \cdot z}{3}\right) \leq 5 \cdot 10^{+146}:\\ \;\;\;\;\mathsf{fma}\left(\cos \left(\left(t \cdot z\right) \cdot -0.3333333333333333\right) \cdot \left(\sqrt{x} \cdot 2\right), \cos y, \mathsf{fma}\left(\sqrt{x} \cdot 2, \sin y \cdot \sin \left(0.3333333333333333 \cdot \left(t \cdot z\right)\right), \frac{a}{b \cdot -3}\right)\right)\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left({x}^{0.25}, \left(1 \cdot 2\right) \cdot {x}^{0.25}, \frac{a}{b \cdot -3}\right)\\ \end{array} \]
    12. Add Preprocessing

    Alternative 2: 77.3% accurate, 0.3× speedup?

    \[\begin{array}{l} \\ \begin{array}{l} t_1 := \sqrt{x} \cdot 2\\ \mathbf{if}\;t\_1 \cdot \cos \left(y - \frac{t \cdot z}{3}\right) \leq 5 \cdot 10^{+146}:\\ \;\;\;\;\mathsf{fma}\left(\cos \left(\left(t \cdot z\right) \cdot -0.3333333333333333\right), \cos y, \sin y \cdot \sin \left(0.3333333333333333 \cdot \left(t \cdot z\right)\right)\right) \cdot t\_1 - \frac{a}{b \cdot 3}\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left({x}^{0.25}, \left(1 \cdot 2\right) \cdot {x}^{0.25}, \frac{a}{b \cdot -3}\right)\\ \end{array} \end{array} \]
    (FPCore (x y z t a b)
     :precision binary64
     (let* ((t_1 (* (sqrt x) 2.0)))
       (if (<= (* t_1 (cos (- y (/ (* t z) 3.0)))) 5e+146)
         (-
          (*
           (fma
            (cos (* (* t z) -0.3333333333333333))
            (cos y)
            (* (sin y) (sin (* 0.3333333333333333 (* t z)))))
           t_1)
          (/ a (* b 3.0)))
         (fma (pow x 0.25) (* (* 1.0 2.0) (pow x 0.25)) (/ a (* b -3.0))))))
    double code(double x, double y, double z, double t, double a, double b) {
    	double t_1 = sqrt(x) * 2.0;
    	double tmp;
    	if ((t_1 * cos((y - ((t * z) / 3.0)))) <= 5e+146) {
    		tmp = (fma(cos(((t * z) * -0.3333333333333333)), cos(y), (sin(y) * sin((0.3333333333333333 * (t * z))))) * t_1) - (a / (b * 3.0));
    	} else {
    		tmp = fma(pow(x, 0.25), ((1.0 * 2.0) * pow(x, 0.25)), (a / (b * -3.0)));
    	}
    	return tmp;
    }
    
    function code(x, y, z, t, a, b)
    	t_1 = Float64(sqrt(x) * 2.0)
    	tmp = 0.0
    	if (Float64(t_1 * cos(Float64(y - Float64(Float64(t * z) / 3.0)))) <= 5e+146)
    		tmp = Float64(Float64(fma(cos(Float64(Float64(t * z) * -0.3333333333333333)), cos(y), Float64(sin(y) * sin(Float64(0.3333333333333333 * Float64(t * z))))) * t_1) - Float64(a / Float64(b * 3.0)));
    	else
    		tmp = fma((x ^ 0.25), Float64(Float64(1.0 * 2.0) * (x ^ 0.25)), Float64(a / Float64(b * -3.0)));
    	end
    	return tmp
    end
    
    code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(N[Sqrt[x], $MachinePrecision] * 2.0), $MachinePrecision]}, If[LessEqual[N[(t$95$1 * N[Cos[N[(y - N[(N[(t * z), $MachinePrecision] / 3.0), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], 5e+146], N[(N[(N[(N[Cos[N[(N[(t * z), $MachinePrecision] * -0.3333333333333333), $MachinePrecision]], $MachinePrecision] * N[Cos[y], $MachinePrecision] + N[(N[Sin[y], $MachinePrecision] * N[Sin[N[(0.3333333333333333 * N[(t * z), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * t$95$1), $MachinePrecision] - N[(a / N[(b * 3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[Power[x, 0.25], $MachinePrecision] * N[(N[(1.0 * 2.0), $MachinePrecision] * N[Power[x, 0.25], $MachinePrecision]), $MachinePrecision] + N[(a / N[(b * -3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
    
    \begin{array}{l}
    
    \\
    \begin{array}{l}
    t_1 := \sqrt{x} \cdot 2\\
    \mathbf{if}\;t\_1 \cdot \cos \left(y - \frac{t \cdot z}{3}\right) \leq 5 \cdot 10^{+146}:\\
    \;\;\;\;\mathsf{fma}\left(\cos \left(\left(t \cdot z\right) \cdot -0.3333333333333333\right), \cos y, \sin y \cdot \sin \left(0.3333333333333333 \cdot \left(t \cdot z\right)\right)\right) \cdot t\_1 - \frac{a}{b \cdot 3}\\
    
    \mathbf{else}:\\
    \;\;\;\;\mathsf{fma}\left({x}^{0.25}, \left(1 \cdot 2\right) \cdot {x}^{0.25}, \frac{a}{b \cdot -3}\right)\\
    
    
    \end{array}
    \end{array}
    
    Derivation
    1. Split input into 2 regimes
    2. if (*.f64 (*.f64 #s(literal 2 binary64) (sqrt.f64 x)) (cos.f64 (-.f64 y (/.f64 (*.f64 z t) #s(literal 3 binary64))))) < 4.9999999999999999e146

      1. Initial program 81.8%

        \[\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - \frac{a}{b \cdot 3} \]
      2. Add Preprocessing
      3. Step-by-step derivation
        1. lift-cos.f64N/A

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

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

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

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

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

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

          \[\leadsto \left(2 \cdot \sqrt{x}\right) \cdot \mathsf{fma}\left(\color{blue}{\cos \left(\mathsf{neg}\left(\frac{z \cdot t}{3}\right)\right)}, \cos y, \sin y \cdot \sin \left(\frac{z \cdot t}{3}\right)\right) - \frac{a}{b \cdot 3} \]
        8. lift-/.f64N/A

          \[\leadsto \left(2 \cdot \sqrt{x}\right) \cdot \mathsf{fma}\left(\cos \left(\mathsf{neg}\left(\color{blue}{\frac{z \cdot t}{3}}\right)\right), \cos y, \sin y \cdot \sin \left(\frac{z \cdot t}{3}\right)\right) - \frac{a}{b \cdot 3} \]
        9. clear-numN/A

          \[\leadsto \left(2 \cdot \sqrt{x}\right) \cdot \mathsf{fma}\left(\cos \left(\mathsf{neg}\left(\color{blue}{\frac{1}{\frac{3}{z \cdot t}}}\right)\right), \cos y, \sin y \cdot \sin \left(\frac{z \cdot t}{3}\right)\right) - \frac{a}{b \cdot 3} \]
        10. associate-/r/N/A

          \[\leadsto \left(2 \cdot \sqrt{x}\right) \cdot \mathsf{fma}\left(\cos \left(\mathsf{neg}\left(\color{blue}{\frac{1}{3} \cdot \left(z \cdot t\right)}\right)\right), \cos y, \sin y \cdot \sin \left(\frac{z \cdot t}{3}\right)\right) - \frac{a}{b \cdot 3} \]
        11. distribute-lft-neg-inN/A

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

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

          \[\leadsto \left(2 \cdot \sqrt{x}\right) \cdot \mathsf{fma}\left(\cos \left(\color{blue}{\frac{-1}{3}} \cdot \left(z \cdot t\right)\right), \cos y, \sin y \cdot \sin \left(\frac{z \cdot t}{3}\right)\right) - \frac{a}{b \cdot 3} \]
        14. metadata-evalN/A

          \[\leadsto \left(2 \cdot \sqrt{x}\right) \cdot \mathsf{fma}\left(\cos \left(\color{blue}{\frac{1}{-3}} \cdot \left(z \cdot t\right)\right), \cos y, \sin y \cdot \sin \left(\frac{z \cdot t}{3}\right)\right) - \frac{a}{b \cdot 3} \]
        15. metadata-evalN/A

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

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

          \[\leadsto \left(2 \cdot \sqrt{x}\right) \cdot \mathsf{fma}\left(\cos \left(\frac{1}{\color{blue}{-3}} \cdot \left(z \cdot t\right)\right), \cos y, \sin y \cdot \sin \left(\frac{z \cdot t}{3}\right)\right) - \frac{a}{b \cdot 3} \]
        18. metadata-evalN/A

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

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

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

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

          \[\leadsto \left(2 \cdot \sqrt{x}\right) \cdot \mathsf{fma}\left(\cos \left(\frac{-1}{3} \cdot \left(t \cdot z\right)\right), \color{blue}{\cos y}, \sin y \cdot \sin \left(\frac{z \cdot t}{3}\right)\right) - \frac{a}{b \cdot 3} \]
      4. Applied rewrites82.4%

        \[\leadsto \left(2 \cdot \sqrt{x}\right) \cdot \color{blue}{\mathsf{fma}\left(\cos \left(-0.3333333333333333 \cdot \left(t \cdot z\right)\right), \cos y, \sin \left(0.3333333333333333 \cdot \left(t \cdot z\right)\right) \cdot \sin y\right)} - \frac{a}{b \cdot 3} \]

      if 4.9999999999999999e146 < (*.f64 (*.f64 #s(literal 2 binary64) (sqrt.f64 x)) (cos.f64 (-.f64 y (/.f64 (*.f64 z t) #s(literal 3 binary64)))))

      1. Initial program 18.4%

        \[\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - \frac{a}{b \cdot 3} \]
      2. Add Preprocessing
      3. Step-by-step derivation
        1. lift--.f64N/A

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

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

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

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

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

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

          \[\leadsto \color{blue}{\sqrt{x}} \cdot \left(2 \cdot \cos \left(y - \frac{z \cdot t}{3}\right)\right) + \left(\mathsf{neg}\left(\frac{a}{b \cdot 3}\right)\right) \]
        8. pow1/2N/A

          \[\leadsto \color{blue}{{x}^{\frac{1}{2}}} \cdot \left(2 \cdot \cos \left(y - \frac{z \cdot t}{3}\right)\right) + \left(\mathsf{neg}\left(\frac{a}{b \cdot 3}\right)\right) \]
        9. sqr-powN/A

          \[\leadsto \color{blue}{\left({x}^{\left(\frac{\frac{1}{2}}{2}\right)} \cdot {x}^{\left(\frac{\frac{1}{2}}{2}\right)}\right)} \cdot \left(2 \cdot \cos \left(y - \frac{z \cdot t}{3}\right)\right) + \left(\mathsf{neg}\left(\frac{a}{b \cdot 3}\right)\right) \]
        10. associate-*l*N/A

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

          \[\leadsto \color{blue}{\mathsf{fma}\left({x}^{\left(\frac{\frac{1}{2}}{2}\right)}, {x}^{\left(\frac{\frac{1}{2}}{2}\right)} \cdot \left(2 \cdot \cos \left(y - \frac{z \cdot t}{3}\right)\right), \mathsf{neg}\left(\frac{a}{b \cdot 3}\right)\right)} \]
      4. Applied rewrites18.4%

        \[\leadsto \color{blue}{\mathsf{fma}\left({x}^{0.25}, {x}^{0.25} \cdot \left(2 \cdot \cos \left(\mathsf{fma}\left(-0.3333333333333333, t \cdot z, y\right)\right)\right), \frac{a}{-3 \cdot b}\right)} \]
      5. Taylor expanded in y around 0

        \[\leadsto \mathsf{fma}\left({x}^{\frac{1}{4}}, {x}^{\frac{1}{4}} \cdot \left(2 \cdot \color{blue}{\cos \left(\frac{-1}{3} \cdot \left(t \cdot z\right)\right)}\right), \frac{a}{-3 \cdot b}\right) \]
      6. Step-by-step derivation
        1. lower-cos.f64N/A

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

          \[\leadsto \mathsf{fma}\left({x}^{\frac{1}{4}}, {x}^{\frac{1}{4}} \cdot \left(2 \cdot \cos \color{blue}{\left(\frac{-1}{3} \cdot \left(t \cdot z\right)\right)}\right), \frac{a}{-3 \cdot b}\right) \]
        3. lower-*.f6418.4

          \[\leadsto \mathsf{fma}\left({x}^{0.25}, {x}^{0.25} \cdot \left(2 \cdot \cos \left(-0.3333333333333333 \cdot \color{blue}{\left(t \cdot z\right)}\right)\right), \frac{a}{-3 \cdot b}\right) \]
      7. Applied rewrites18.4%

        \[\leadsto \mathsf{fma}\left({x}^{0.25}, {x}^{0.25} \cdot \left(2 \cdot \color{blue}{\cos \left(-0.3333333333333333 \cdot \left(t \cdot z\right)\right)}\right), \frac{a}{-3 \cdot b}\right) \]
      8. Taylor expanded in z around 0

        \[\leadsto \mathsf{fma}\left({x}^{\frac{1}{4}}, {x}^{\frac{1}{4}} \cdot \left(2 \cdot 1\right), \frac{a}{-3 \cdot b}\right) \]
      9. Step-by-step derivation
        1. Applied rewrites66.4%

          \[\leadsto \mathsf{fma}\left({x}^{0.25}, {x}^{0.25} \cdot \left(2 \cdot 1\right), \frac{a}{-3 \cdot b}\right) \]
      10. Recombined 2 regimes into one program.
      11. Final simplification80.0%

        \[\leadsto \begin{array}{l} \mathbf{if}\;\left(\sqrt{x} \cdot 2\right) \cdot \cos \left(y - \frac{t \cdot z}{3}\right) \leq 5 \cdot 10^{+146}:\\ \;\;\;\;\mathsf{fma}\left(\cos \left(\left(t \cdot z\right) \cdot -0.3333333333333333\right), \cos y, \sin y \cdot \sin \left(0.3333333333333333 \cdot \left(t \cdot z\right)\right)\right) \cdot \left(\sqrt{x} \cdot 2\right) - \frac{a}{b \cdot 3}\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left({x}^{0.25}, \left(1 \cdot 2\right) \cdot {x}^{0.25}, \frac{a}{b \cdot -3}\right)\\ \end{array} \]
      12. Add Preprocessing

      Alternative 3: 67.8% accurate, 0.9× speedup?

      \[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{a}{b \cdot 3}\\ \mathbf{if}\;t\_1 \leq -2 \cdot 10^{-8}:\\ \;\;\;\;\frac{a}{b \cdot -3}\\ \mathbf{elif}\;t\_1 \leq 5 \cdot 10^{-111}:\\ \;\;\;\;\cos \left(\mathsf{fma}\left(-0.3333333333333333, t \cdot z, y\right)\right) \cdot \left(\sqrt{x} \cdot 2\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{\frac{a}{b}}{-3}\\ \end{array} \end{array} \]
      (FPCore (x y z t a b)
       :precision binary64
       (let* ((t_1 (/ a (* b 3.0))))
         (if (<= t_1 -2e-8)
           (/ a (* b -3.0))
           (if (<= t_1 5e-111)
             (* (cos (fma -0.3333333333333333 (* t z) y)) (* (sqrt x) 2.0))
             (/ (/ a b) -3.0)))))
      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 <= -2e-8) {
      		tmp = a / (b * -3.0);
      	} else if (t_1 <= 5e-111) {
      		tmp = cos(fma(-0.3333333333333333, (t * z), y)) * (sqrt(x) * 2.0);
      	} else {
      		tmp = (a / b) / -3.0;
      	}
      	return tmp;
      }
      
      function code(x, y, z, t, a, b)
      	t_1 = Float64(a / Float64(b * 3.0))
      	tmp = 0.0
      	if (t_1 <= -2e-8)
      		tmp = Float64(a / Float64(b * -3.0));
      	elseif (t_1 <= 5e-111)
      		tmp = Float64(cos(fma(-0.3333333333333333, Float64(t * z), y)) * Float64(sqrt(x) * 2.0));
      	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[(b * 3.0), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$1, -2e-8], N[(a / N[(b * -3.0), $MachinePrecision]), $MachinePrecision], If[LessEqual[t$95$1, 5e-111], N[(N[Cos[N[(-0.3333333333333333 * N[(t * z), $MachinePrecision] + y), $MachinePrecision]], $MachinePrecision] * N[(N[Sqrt[x], $MachinePrecision] * 2.0), $MachinePrecision]), $MachinePrecision], N[(N[(a / b), $MachinePrecision] / -3.0), $MachinePrecision]]]]
      
      \begin{array}{l}
      
      \\
      \begin{array}{l}
      t_1 := \frac{a}{b \cdot 3}\\
      \mathbf{if}\;t\_1 \leq -2 \cdot 10^{-8}:\\
      \;\;\;\;\frac{a}{b \cdot -3}\\
      
      \mathbf{elif}\;t\_1 \leq 5 \cdot 10^{-111}:\\
      \;\;\;\;\cos \left(\mathsf{fma}\left(-0.3333333333333333, t \cdot z, y\right)\right) \cdot \left(\sqrt{x} \cdot 2\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))) < -2e-8

        1. Initial program 83.2%

          \[\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - \frac{a}{b \cdot 3} \]
        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. lower-*.f64N/A

            \[\leadsto \color{blue}{\frac{-1}{3} \cdot \frac{a}{b}} \]
          2. lower-/.f6486.8

            \[\leadsto -0.3333333333333333 \cdot \color{blue}{\frac{a}{b}} \]
        5. Applied rewrites86.8%

          \[\leadsto \color{blue}{-0.3333333333333333 \cdot \frac{a}{b}} \]
        6. Step-by-step derivation
          1. Applied rewrites88.1%

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

          if -2e-8 < (/.f64 a (*.f64 b #s(literal 3 binary64))) < 5.0000000000000003e-111

          1. Initial program 60.5%

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

            \[\leadsto \color{blue}{-2 \cdot \left(\sqrt{x} \cdot \left(\cos \left(y - \frac{1}{3} \cdot \left(t \cdot z\right)\right) \cdot {\left(\sqrt{-1}\right)}^{2}\right)\right)} \]
          4. Applied rewrites58.5%

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

          if 5.0000000000000003e-111 < (/.f64 a (*.f64 b #s(literal 3 binary64)))

          1. Initial program 78.5%

            \[\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - \frac{a}{b \cdot 3} \]
          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. lower-*.f64N/A

              \[\leadsto \color{blue}{\frac{-1}{3} \cdot \frac{a}{b}} \]
            2. lower-/.f6474.6

              \[\leadsto -0.3333333333333333 \cdot \color{blue}{\frac{a}{b}} \]
          5. Applied rewrites74.6%

            \[\leadsto \color{blue}{-0.3333333333333333 \cdot \frac{a}{b}} \]
          6. Step-by-step derivation
            1. Applied rewrites74.7%

              \[\leadsto \frac{\frac{a}{b}}{\color{blue}{-3}} \]
          7. Recombined 3 regimes into one program.
          8. Final simplification71.5%

            \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{a}{b \cdot 3} \leq -2 \cdot 10^{-8}:\\ \;\;\;\;\frac{a}{b \cdot -3}\\ \mathbf{elif}\;\frac{a}{b \cdot 3} \leq 5 \cdot 10^{-111}:\\ \;\;\;\;\cos \left(\mathsf{fma}\left(-0.3333333333333333, t \cdot z, y\right)\right) \cdot \left(\sqrt{x} \cdot 2\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{\frac{a}{b}}{-3}\\ \end{array} \]
          9. Add Preprocessing

          Alternative 4: 76.6% accurate, 1.2× speedup?

          \[\begin{array}{l} \\ \mathsf{fma}\left(\sqrt{x} \cdot 2, \cos y, \frac{a \cdot -0.3333333333333333}{b}\right) \end{array} \]
          (FPCore (x y z t a b)
           :precision binary64
           (fma (* (sqrt x) 2.0) (cos y) (/ (* a -0.3333333333333333) b)))
          double code(double x, double y, double z, double t, double a, double b) {
          	return fma((sqrt(x) * 2.0), cos(y), ((a * -0.3333333333333333) / b));
          }
          
          function code(x, y, z, t, a, b)
          	return fma(Float64(sqrt(x) * 2.0), cos(y), Float64(Float64(a * -0.3333333333333333) / b))
          end
          
          code[x_, y_, z_, t_, a_, b_] := N[(N[(N[Sqrt[x], $MachinePrecision] * 2.0), $MachinePrecision] * N[Cos[y], $MachinePrecision] + N[(N[(a * -0.3333333333333333), $MachinePrecision] / b), $MachinePrecision]), $MachinePrecision]
          
          \begin{array}{l}
          
          \\
          \mathsf{fma}\left(\sqrt{x} \cdot 2, \cos y, \frac{a \cdot -0.3333333333333333}{b}\right)
          \end{array}
          
          Derivation
          1. Initial program 72.4%

            \[\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - \frac{a}{b \cdot 3} \]
          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.f6478.2

              \[\leadsto \left(2 \cdot \sqrt{x}\right) \cdot \color{blue}{\cos y} - \frac{a}{b \cdot 3} \]
          5. Applied rewrites78.2%

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

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

              \[\leadsto \left(2 \cdot \sqrt{x}\right) \cdot \cos y + \left(\mathsf{neg}\left(\color{blue}{\frac{a}{b \cdot 3}}\right)\right) \]
            5. distribute-neg-frac2N/A

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

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

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

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

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

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

              \[\leadsto \left(2 \cdot \sqrt{x}\right) \cdot \cos y + \color{blue}{\frac{a}{-3 \cdot b}} \]
            12. lower-fma.f6478.2

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

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

              \[\leadsto \mathsf{fma}\left(\color{blue}{\sqrt{x} \cdot 2}, \cos y, \frac{a}{-3 \cdot b}\right) \]
            15. lower-*.f6478.2

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

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

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

              \[\leadsto \mathsf{fma}\left(\sqrt{x} \cdot 2, \cos y, \color{blue}{\frac{1}{-3 \cdot b} \cdot a}\right) \]
          7. Applied rewrites78.1%

            \[\leadsto \color{blue}{\mathsf{fma}\left(\sqrt{x} \cdot 2, \cos y, \frac{-0.3333333333333333}{b} \cdot a\right)} \]
          8. Step-by-step derivation
            1. lift-*.f64N/A

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

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

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

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

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

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

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

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

              \[\leadsto \mathsf{fma}\left(\sqrt{x} \cdot 2, \cos y, \frac{a \cdot \color{blue}{\frac{-1}{3}}}{b}\right) \]
            10. lower-*.f6478.2

              \[\leadsto \mathsf{fma}\left(\sqrt{x} \cdot 2, \cos y, \frac{\color{blue}{a \cdot -0.3333333333333333}}{b}\right) \]
          9. Applied rewrites78.2%

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

          Alternative 5: 76.5% accurate, 1.2× speedup?

          \[\begin{array}{l} \\ \mathsf{fma}\left(\sqrt{x} \cdot 2, \cos y, \frac{-0.3333333333333333}{b} \cdot a\right) \end{array} \]
          (FPCore (x y z t a b)
           :precision binary64
           (fma (* (sqrt x) 2.0) (cos y) (* (/ -0.3333333333333333 b) a)))
          double code(double x, double y, double z, double t, double a, double b) {
          	return fma((sqrt(x) * 2.0), cos(y), ((-0.3333333333333333 / b) * a));
          }
          
          function code(x, y, z, t, a, b)
          	return fma(Float64(sqrt(x) * 2.0), cos(y), Float64(Float64(-0.3333333333333333 / b) * a))
          end
          
          code[x_, y_, z_, t_, a_, b_] := N[(N[(N[Sqrt[x], $MachinePrecision] * 2.0), $MachinePrecision] * N[Cos[y], $MachinePrecision] + N[(N[(-0.3333333333333333 / b), $MachinePrecision] * a), $MachinePrecision]), $MachinePrecision]
          
          \begin{array}{l}
          
          \\
          \mathsf{fma}\left(\sqrt{x} \cdot 2, \cos y, \frac{-0.3333333333333333}{b} \cdot a\right)
          \end{array}
          
          Derivation
          1. Initial program 72.4%

            \[\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - \frac{a}{b \cdot 3} \]
          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.f6478.2

              \[\leadsto \left(2 \cdot \sqrt{x}\right) \cdot \color{blue}{\cos y} - \frac{a}{b \cdot 3} \]
          5. Applied rewrites78.2%

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

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

              \[\leadsto \left(2 \cdot \sqrt{x}\right) \cdot \cos y + \left(\mathsf{neg}\left(\color{blue}{\frac{a}{b \cdot 3}}\right)\right) \]
            5. distribute-neg-frac2N/A

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

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

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

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

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

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

              \[\leadsto \left(2 \cdot \sqrt{x}\right) \cdot \cos y + \color{blue}{\frac{a}{-3 \cdot b}} \]
            12. lower-fma.f6478.2

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

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

              \[\leadsto \mathsf{fma}\left(\color{blue}{\sqrt{x} \cdot 2}, \cos y, \frac{a}{-3 \cdot b}\right) \]
            15. lower-*.f6478.2

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

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

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

              \[\leadsto \mathsf{fma}\left(\sqrt{x} \cdot 2, \cos y, \color{blue}{\frac{1}{-3 \cdot b} \cdot a}\right) \]
          7. Applied rewrites78.1%

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

          Alternative 6: 76.5% accurate, 1.2× speedup?

          \[\begin{array}{l} \\ \mathsf{fma}\left(\cos y \cdot 2, \sqrt{x}, \frac{a}{b} \cdot -0.3333333333333333\right) \end{array} \]
          (FPCore (x y z t a b)
           :precision binary64
           (fma (* (cos y) 2.0) (sqrt x) (* (/ a b) -0.3333333333333333)))
          double code(double x, double y, double z, double t, double a, double b) {
          	return fma((cos(y) * 2.0), sqrt(x), ((a / b) * -0.3333333333333333));
          }
          
          function code(x, y, z, t, a, b)
          	return fma(Float64(cos(y) * 2.0), sqrt(x), Float64(Float64(a / b) * -0.3333333333333333))
          end
          
          code[x_, y_, z_, t_, a_, b_] := N[(N[(N[Cos[y], $MachinePrecision] * 2.0), $MachinePrecision] * N[Sqrt[x], $MachinePrecision] + N[(N[(a / b), $MachinePrecision] * -0.3333333333333333), $MachinePrecision]), $MachinePrecision]
          
          \begin{array}{l}
          
          \\
          \mathsf{fma}\left(\cos y \cdot 2, \sqrt{x}, \frac{a}{b} \cdot -0.3333333333333333\right)
          \end{array}
          
          Derivation
          1. Initial program 72.4%

            \[\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - \frac{a}{b \cdot 3} \]
          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. *-commutativeN/A

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

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

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

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

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

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

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

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

              \[\leadsto \mathsf{fma}\left(2 \cdot \cos y, \sqrt{x}, -0.3333333333333333 \cdot \color{blue}{\frac{a}{b}}\right) \]
          5. Applied rewrites77.9%

            \[\leadsto \color{blue}{\mathsf{fma}\left(2 \cdot \cos y, \sqrt{x}, -0.3333333333333333 \cdot \frac{a}{b}\right)} \]
          6. Final simplification77.9%

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

          Alternative 7: 50.2% 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 72.4%

            \[\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - \frac{a}{b \cdot 3} \]
          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. lower-*.f64N/A

              \[\leadsto \color{blue}{\frac{-1}{3} \cdot \frac{a}{b}} \]
            2. lower-/.f6450.0

              \[\leadsto -0.3333333333333333 \cdot \color{blue}{\frac{a}{b}} \]
          5. Applied rewrites50.0%

            \[\leadsto \color{blue}{-0.3333333333333333 \cdot \frac{a}{b}} \]
          6. Step-by-step derivation
            1. Applied rewrites50.3%

              \[\leadsto \frac{a}{\color{blue}{-3 \cdot b}} \]
            2. Final simplification50.3%

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

            Alternative 8: 50.1% accurate, 9.4× speedup?

            \[\begin{array}{l} \\ \frac{-0.3333333333333333}{b} \cdot a \end{array} \]
            (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(Float64(-0.3333333333333333 / 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[(N[(-0.3333333333333333 / b), $MachinePrecision] * a), $MachinePrecision]
            
            \begin{array}{l}
            
            \\
            \frac{-0.3333333333333333}{b} \cdot a
            \end{array}
            
            Derivation
            1. Initial program 72.4%

              \[\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - \frac{a}{b \cdot 3} \]
            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. lower-*.f64N/A

                \[\leadsto \color{blue}{\frac{-1}{3} \cdot \frac{a}{b}} \]
              2. lower-/.f6450.0

                \[\leadsto -0.3333333333333333 \cdot \color{blue}{\frac{a}{b}} \]
            5. Applied rewrites50.0%

              \[\leadsto \color{blue}{-0.3333333333333333 \cdot \frac{a}{b}} \]
            6. Step-by-step derivation
              1. Applied rewrites50.3%

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

              Alternative 9: 50.1% accurate, 9.4× speedup?

              \[\begin{array}{l} \\ \frac{a}{b} \cdot -0.3333333333333333 \end{array} \]
              (FPCore (x y z t a b) :precision binary64 (* (/ a b) -0.3333333333333333))
              double code(double x, double y, double z, double t, double a, double b) {
              	return (a / b) * -0.3333333333333333;
              }
              
              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) * (-0.3333333333333333d0)
              end function
              
              public static double code(double x, double y, double z, double t, double a, double b) {
              	return (a / b) * -0.3333333333333333;
              }
              
              def code(x, y, z, t, a, b):
              	return (a / b) * -0.3333333333333333
              
              function code(x, y, z, t, a, b)
              	return Float64(Float64(a / b) * -0.3333333333333333)
              end
              
              function tmp = code(x, y, z, t, a, b)
              	tmp = (a / b) * -0.3333333333333333;
              end
              
              code[x_, y_, z_, t_, a_, b_] := N[(N[(a / b), $MachinePrecision] * -0.3333333333333333), $MachinePrecision]
              
              \begin{array}{l}
              
              \\
              \frac{a}{b} \cdot -0.3333333333333333
              \end{array}
              
              Derivation
              1. Initial program 72.4%

                \[\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - \frac{a}{b \cdot 3} \]
              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. lower-*.f64N/A

                  \[\leadsto \color{blue}{\frac{-1}{3} \cdot \frac{a}{b}} \]
                2. lower-/.f6450.0

                  \[\leadsto -0.3333333333333333 \cdot \color{blue}{\frac{a}{b}} \]
              5. Applied rewrites50.0%

                \[\leadsto \color{blue}{-0.3333333333333333 \cdot \frac{a}{b}} \]
              6. Final simplification50.0%

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

              Developer Target 1: 74.0% 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 2024332 
              (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))))