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

Percentage Accurate: 70.4% → 76.8%
Time: 21.4s
Alternatives: 7
Speedup: 1.0×

Specification

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

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

Sampling outcomes in binary64 precision:

Local Percentage Accuracy vs ?

The average percentage accuracy by input value. Horizontal axis shows value of an input variable; the variable is choosen in the title. Vertical axis is accuracy; higher is better. Red represent the original program, while blue represents Herbie's suggestion. These can be toggled with buttons below the plot. The line is an average while dots represent individual samples.

Accuracy vs Speed?

Herbie found 7 alternatives:

AlternativeAccuracySpeedup
The accuracy (vertical axis) and speed (horizontal axis) of each alternatives. Up and to the right is better. The red square shows the initial program, and each blue circle shows an alternative.The line shows the best available speed-accuracy tradeoffs.

Initial Program: 70.4% 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: 76.8% accurate, 1.0× speedup?

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

\\
\cos y \cdot \left(\sqrt{x} \cdot 2\right) - \frac{a}{3 \cdot b}
\end{array}
Derivation
  1. Initial program 72.0%

    \[\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - \frac{a}{b \cdot 3} \]
  2. Step-by-step derivation
    1. *-commutative72.0%

      \[\leadsto \color{blue}{\cos \left(y - \frac{z \cdot t}{3}\right) \cdot \left(2 \cdot \sqrt{x}\right)} - \frac{a}{b \cdot 3} \]
    2. *-commutative72.0%

      \[\leadsto \cos \left(y - \frac{\color{blue}{t \cdot z}}{3}\right) \cdot \left(2 \cdot \sqrt{x}\right) - \frac{a}{b \cdot 3} \]
    3. *-commutative72.0%

      \[\leadsto \color{blue}{\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{t \cdot z}{3}\right)} - \frac{a}{b \cdot 3} \]
    4. *-commutative72.0%

      \[\leadsto \left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{\color{blue}{z \cdot t}}{3}\right) - \frac{a}{b \cdot 3} \]
    5. associate-/l*72.2%

      \[\leadsto \left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \color{blue}{z \cdot \frac{t}{3}}\right) - \frac{a}{b \cdot 3} \]
    6. *-commutative72.2%

      \[\leadsto \left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - z \cdot \frac{t}{3}\right) - \frac{a}{\color{blue}{3 \cdot b}} \]
  3. Simplified72.2%

    \[\leadsto \color{blue}{\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - z \cdot \frac{t}{3}\right) - \frac{a}{3 \cdot b}} \]
  4. Add Preprocessing
  5. Taylor expanded in z around 0 77.9%

    \[\leadsto \color{blue}{2 \cdot \left(\sqrt{x} \cdot \cos y\right)} - \frac{a}{3 \cdot b} \]
  6. Step-by-step derivation
    1. associate-*r*77.9%

      \[\leadsto \color{blue}{\left(2 \cdot \sqrt{x}\right) \cdot \cos y} - \frac{a}{3 \cdot b} \]
    2. *-commutative77.9%

      \[\leadsto \color{blue}{\cos y \cdot \left(2 \cdot \sqrt{x}\right)} - \frac{a}{3 \cdot b} \]
    3. *-commutative77.9%

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

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

Alternative 2: 71.6% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \sqrt{x} \cdot 2\\ t_2 := \frac{a}{3 \cdot b}\\ \mathbf{if}\;t\_2 \leq -2 \cdot 10^{-43} \lor \neg \left(t\_2 \leq 10^{-93}\right):\\ \;\;\;\;t\_1 - t\_2\\ \mathbf{else}:\\ \;\;\;\;t\_1 \cdot \cos \left(y + z \cdot \left(-0.3333333333333333 \cdot t\right)\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* (sqrt x) 2.0)) (t_2 (/ a (* 3.0 b))))
   (if (or (<= t_2 -2e-43) (not (<= t_2 1e-93)))
     (- t_1 t_2)
     (* t_1 (cos (+ y (* z (* -0.3333333333333333 t))))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = sqrt(x) * 2.0;
	double t_2 = a / (3.0 * b);
	double tmp;
	if ((t_2 <= -2e-43) || !(t_2 <= 1e-93)) {
		tmp = t_1 - t_2;
	} else {
		tmp = t_1 * cos((y + (z * (-0.3333333333333333 * t))));
	}
	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) :: tmp
    t_1 = sqrt(x) * 2.0d0
    t_2 = a / (3.0d0 * b)
    if ((t_2 <= (-2d-43)) .or. (.not. (t_2 <= 1d-93))) then
        tmp = t_1 - t_2
    else
        tmp = t_1 * cos((y + (z * ((-0.3333333333333333d0) * t))))
    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 = Math.sqrt(x) * 2.0;
	double t_2 = a / (3.0 * b);
	double tmp;
	if ((t_2 <= -2e-43) || !(t_2 <= 1e-93)) {
		tmp = t_1 - t_2;
	} else {
		tmp = t_1 * Math.cos((y + (z * (-0.3333333333333333 * t))));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = math.sqrt(x) * 2.0
	t_2 = a / (3.0 * b)
	tmp = 0
	if (t_2 <= -2e-43) or not (t_2 <= 1e-93):
		tmp = t_1 - t_2
	else:
		tmp = t_1 * math.cos((y + (z * (-0.3333333333333333 * t))))
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(sqrt(x) * 2.0)
	t_2 = Float64(a / Float64(3.0 * b))
	tmp = 0.0
	if ((t_2 <= -2e-43) || !(t_2 <= 1e-93))
		tmp = Float64(t_1 - t_2);
	else
		tmp = Float64(t_1 * cos(Float64(y + Float64(z * Float64(-0.3333333333333333 * t)))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = sqrt(x) * 2.0;
	t_2 = a / (3.0 * b);
	tmp = 0.0;
	if ((t_2 <= -2e-43) || ~((t_2 <= 1e-93)))
		tmp = t_1 - t_2;
	else
		tmp = t_1 * cos((y + (z * (-0.3333333333333333 * t))));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(N[Sqrt[x], $MachinePrecision] * 2.0), $MachinePrecision]}, Block[{t$95$2 = N[(a / N[(3.0 * b), $MachinePrecision]), $MachinePrecision]}, If[Or[LessEqual[t$95$2, -2e-43], N[Not[LessEqual[t$95$2, 1e-93]], $MachinePrecision]], N[(t$95$1 - t$95$2), $MachinePrecision], N[(t$95$1 * N[Cos[N[(y + N[(z * N[(-0.3333333333333333 * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \sqrt{x} \cdot 2\\
t_2 := \frac{a}{3 \cdot b}\\
\mathbf{if}\;t\_2 \leq -2 \cdot 10^{-43} \lor \neg \left(t\_2 \leq 10^{-93}\right):\\
\;\;\;\;t\_1 - t\_2\\

\mathbf{else}:\\
\;\;\;\;t\_1 \cdot \cos \left(y + z \cdot \left(-0.3333333333333333 \cdot t\right)\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (/.f64 a (*.f64 b #s(literal 3 binary64))) < -2.00000000000000015e-43 or 9.999999999999999e-94 < (/.f64 a (*.f64 b #s(literal 3 binary64)))

    1. Initial program 81.4%

      \[\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - \frac{a}{b \cdot 3} \]
    2. Step-by-step derivation
      1. *-commutative81.4%

        \[\leadsto \color{blue}{\cos \left(y - \frac{z \cdot t}{3}\right) \cdot \left(2 \cdot \sqrt{x}\right)} - \frac{a}{b \cdot 3} \]
      2. *-commutative81.4%

        \[\leadsto \cos \left(y - \frac{\color{blue}{t \cdot z}}{3}\right) \cdot \left(2 \cdot \sqrt{x}\right) - \frac{a}{b \cdot 3} \]
      3. *-commutative81.4%

        \[\leadsto \color{blue}{\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{t \cdot z}{3}\right)} - \frac{a}{b \cdot 3} \]
      4. *-commutative81.4%

        \[\leadsto \left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{\color{blue}{z \cdot t}}{3}\right) - \frac{a}{b \cdot 3} \]
      5. associate-/l*81.3%

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

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

      \[\leadsto \color{blue}{\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - z \cdot \frac{t}{3}\right) - \frac{a}{3 \cdot b}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 89.1%

      \[\leadsto \color{blue}{2 \cdot \left(\sqrt{x} \cdot \cos y\right)} - \frac{a}{3 \cdot b} \]
    6. Step-by-step derivation
      1. associate-*r*89.1%

        \[\leadsto \color{blue}{\left(2 \cdot \sqrt{x}\right) \cdot \cos y} - \frac{a}{3 \cdot b} \]
      2. *-commutative89.1%

        \[\leadsto \color{blue}{\cos y \cdot \left(2 \cdot \sqrt{x}\right)} - \frac{a}{3 \cdot b} \]
      3. *-commutative89.1%

        \[\leadsto \cos y \cdot \color{blue}{\left(\sqrt{x} \cdot 2\right)} - \frac{a}{3 \cdot b} \]
    7. Simplified89.1%

      \[\leadsto \color{blue}{\cos y \cdot \left(\sqrt{x} \cdot 2\right)} - \frac{a}{3 \cdot b} \]
    8. Taylor expanded in y around 0 86.3%

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

    if -2.00000000000000015e-43 < (/.f64 a (*.f64 b #s(literal 3 binary64))) < 9.999999999999999e-94

    1. Initial program 56.2%

      \[\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - \frac{a}{b \cdot 3} \]
    2. Simplified56.6%

      \[\leadsto \color{blue}{\mathsf{fma}\left(2, \sqrt{x} \cdot \cos \left(\mathsf{fma}\left(z, t \cdot -0.3333333333333333, y\right)\right), a \cdot \frac{-0.3333333333333333}{b}\right)} \]
    3. Add Preprocessing
    4. Taylor expanded in x around -inf 0.0%

      \[\leadsto \color{blue}{-1 \cdot \left(x \cdot \left(0.3333333333333333 \cdot \frac{a}{b \cdot x} + 2 \cdot \left(\sqrt{\frac{1}{x}} \cdot \left(\cos \left(y + -0.3333333333333333 \cdot \left(t \cdot z\right)\right) \cdot {\left(\sqrt{-1}\right)}^{2}\right)\right)\right)\right)} \]
    5. Step-by-step derivation
      1. mul-1-neg0.0%

        \[\leadsto \color{blue}{-x \cdot \left(0.3333333333333333 \cdot \frac{a}{b \cdot x} + 2 \cdot \left(\sqrt{\frac{1}{x}} \cdot \left(\cos \left(y + -0.3333333333333333 \cdot \left(t \cdot z\right)\right) \cdot {\left(\sqrt{-1}\right)}^{2}\right)\right)\right)} \]
      2. distribute-rgt-neg-in0.0%

        \[\leadsto \color{blue}{x \cdot \left(-\left(0.3333333333333333 \cdot \frac{a}{b \cdot x} + 2 \cdot \left(\sqrt{\frac{1}{x}} \cdot \left(\cos \left(y + -0.3333333333333333 \cdot \left(t \cdot z\right)\right) \cdot {\left(\sqrt{-1}\right)}^{2}\right)\right)\right)\right)} \]
      3. +-commutative0.0%

        \[\leadsto x \cdot \left(-\color{blue}{\left(2 \cdot \left(\sqrt{\frac{1}{x}} \cdot \left(\cos \left(y + -0.3333333333333333 \cdot \left(t \cdot z\right)\right) \cdot {\left(\sqrt{-1}\right)}^{2}\right)\right) + 0.3333333333333333 \cdot \frac{a}{b \cdot x}\right)}\right) \]
      4. fma-define0.0%

        \[\leadsto x \cdot \left(-\color{blue}{\mathsf{fma}\left(2, \sqrt{\frac{1}{x}} \cdot \left(\cos \left(y + -0.3333333333333333 \cdot \left(t \cdot z\right)\right) \cdot {\left(\sqrt{-1}\right)}^{2}\right), 0.3333333333333333 \cdot \frac{a}{b \cdot x}\right)}\right) \]
    6. Simplified56.1%

      \[\leadsto \color{blue}{x \cdot \left(-\mathsf{fma}\left(2, \sqrt{\frac{1}{x}} \cdot \left(-1 \cdot \cos \left(\mathsf{fma}\left(t, z \cdot -0.3333333333333333, y\right)\right)\right), \frac{a}{b} \cdot \frac{0.3333333333333333}{x}\right)\right)} \]
    7. Step-by-step derivation
      1. expm1-log1p-u44.8%

        \[\leadsto \color{blue}{\mathsf{expm1}\left(\mathsf{log1p}\left(x \cdot \left(-\mathsf{fma}\left(2, \sqrt{\frac{1}{x}} \cdot \left(-1 \cdot \cos \left(\mathsf{fma}\left(t, z \cdot -0.3333333333333333, y\right)\right)\right), \frac{a}{b} \cdot \frac{0.3333333333333333}{x}\right)\right)\right)\right)} \]
      2. expm1-undefine22.9%

        \[\leadsto \color{blue}{e^{\mathsf{log1p}\left(x \cdot \left(-\mathsf{fma}\left(2, \sqrt{\frac{1}{x}} \cdot \left(-1 \cdot \cos \left(\mathsf{fma}\left(t, z \cdot -0.3333333333333333, y\right)\right)\right), \frac{a}{b} \cdot \frac{0.3333333333333333}{x}\right)\right)\right)} - 1} \]
      3. inv-pow22.9%

        \[\leadsto e^{\mathsf{log1p}\left(x \cdot \left(-\mathsf{fma}\left(2, \sqrt{\color{blue}{{x}^{-1}}} \cdot \left(-1 \cdot \cos \left(\mathsf{fma}\left(t, z \cdot -0.3333333333333333, y\right)\right)\right), \frac{a}{b} \cdot \frac{0.3333333333333333}{x}\right)\right)\right)} - 1 \]
      4. sqrt-pow122.9%

        \[\leadsto e^{\mathsf{log1p}\left(x \cdot \left(-\mathsf{fma}\left(2, \color{blue}{{x}^{\left(\frac{-1}{2}\right)}} \cdot \left(-1 \cdot \cos \left(\mathsf{fma}\left(t, z \cdot -0.3333333333333333, y\right)\right)\right), \frac{a}{b} \cdot \frac{0.3333333333333333}{x}\right)\right)\right)} - 1 \]
      5. metadata-eval22.9%

        \[\leadsto e^{\mathsf{log1p}\left(x \cdot \left(-\mathsf{fma}\left(2, {x}^{\color{blue}{-0.5}} \cdot \left(-1 \cdot \cos \left(\mathsf{fma}\left(t, z \cdot -0.3333333333333333, y\right)\right)\right), \frac{a}{b} \cdot \frac{0.3333333333333333}{x}\right)\right)\right)} - 1 \]
      6. mul-1-neg22.9%

        \[\leadsto e^{\mathsf{log1p}\left(x \cdot \left(-\mathsf{fma}\left(2, {x}^{-0.5} \cdot \color{blue}{\left(-\cos \left(\mathsf{fma}\left(t, z \cdot -0.3333333333333333, y\right)\right)\right)}, \frac{a}{b} \cdot \frac{0.3333333333333333}{x}\right)\right)\right)} - 1 \]
    8. Applied egg-rr22.9%

      \[\leadsto \color{blue}{e^{\mathsf{log1p}\left(x \cdot \left(-\mathsf{fma}\left(2, {x}^{-0.5} \cdot \left(-\cos \left(\mathsf{fma}\left(t, z \cdot -0.3333333333333333, y\right)\right)\right), \frac{a}{b} \cdot \frac{0.3333333333333333}{x}\right)\right)\right)} - 1} \]
    9. Step-by-step derivation
      1. sub-neg22.9%

        \[\leadsto \color{blue}{e^{\mathsf{log1p}\left(x \cdot \left(-\mathsf{fma}\left(2, {x}^{-0.5} \cdot \left(-\cos \left(\mathsf{fma}\left(t, z \cdot -0.3333333333333333, y\right)\right)\right), \frac{a}{b} \cdot \frac{0.3333333333333333}{x}\right)\right)\right)} + \left(-1\right)} \]
      2. metadata-eval22.9%

        \[\leadsto e^{\mathsf{log1p}\left(x \cdot \left(-\mathsf{fma}\left(2, {x}^{-0.5} \cdot \left(-\cos \left(\mathsf{fma}\left(t, z \cdot -0.3333333333333333, y\right)\right)\right), \frac{a}{b} \cdot \frac{0.3333333333333333}{x}\right)\right)\right)} + \color{blue}{-1} \]
      3. +-commutative22.9%

        \[\leadsto \color{blue}{-1 + e^{\mathsf{log1p}\left(x \cdot \left(-\mathsf{fma}\left(2, {x}^{-0.5} \cdot \left(-\cos \left(\mathsf{fma}\left(t, z \cdot -0.3333333333333333, y\right)\right)\right), \frac{a}{b} \cdot \frac{0.3333333333333333}{x}\right)\right)\right)}} \]
      4. log1p-undefine22.9%

        \[\leadsto -1 + e^{\color{blue}{\log \left(1 + x \cdot \left(-\mathsf{fma}\left(2, {x}^{-0.5} \cdot \left(-\cos \left(\mathsf{fma}\left(t, z \cdot -0.3333333333333333, y\right)\right)\right), \frac{a}{b} \cdot \frac{0.3333333333333333}{x}\right)\right)\right)}} \]
      5. rem-exp-log34.4%

        \[\leadsto -1 + \color{blue}{\left(1 + x \cdot \left(-\mathsf{fma}\left(2, {x}^{-0.5} \cdot \left(-\cos \left(\mathsf{fma}\left(t, z \cdot -0.3333333333333333, y\right)\right)\right), \frac{a}{b} \cdot \frac{0.3333333333333333}{x}\right)\right)\right)} \]
      6. distribute-rgt-neg-in34.4%

        \[\leadsto -1 + \left(1 + \color{blue}{\left(-x \cdot \mathsf{fma}\left(2, {x}^{-0.5} \cdot \left(-\cos \left(\mathsf{fma}\left(t, z \cdot -0.3333333333333333, y\right)\right)\right), \frac{a}{b} \cdot \frac{0.3333333333333333}{x}\right)\right)}\right) \]
      7. unsub-neg34.4%

        \[\leadsto -1 + \color{blue}{\left(1 - x \cdot \mathsf{fma}\left(2, {x}^{-0.5} \cdot \left(-\cos \left(\mathsf{fma}\left(t, z \cdot -0.3333333333333333, y\right)\right)\right), \frac{a}{b} \cdot \frac{0.3333333333333333}{x}\right)\right)} \]
      8. fma-define34.4%

        \[\leadsto -1 + \left(1 - x \cdot \color{blue}{\left(2 \cdot \left({x}^{-0.5} \cdot \left(-\cos \left(\mathsf{fma}\left(t, z \cdot -0.3333333333333333, y\right)\right)\right)\right) + \frac{a}{b} \cdot \frac{0.3333333333333333}{x}\right)}\right) \]
    10. Simplified34.3%

      \[\leadsto \color{blue}{-1 + \left(1 - x \cdot \left(a \cdot \frac{\frac{0.3333333333333333}{x}}{b} - \left({x}^{-0.5} \cdot \cos \left(\mathsf{fma}\left(t, z \cdot -0.3333333333333333, y\right)\right)\right) \cdot 2\right)\right)} \]
    11. Taylor expanded in x around inf 54.1%

      \[\leadsto \color{blue}{2 \cdot \left(\sqrt{x} \cdot \cos \left(y + -0.3333333333333333 \cdot \left(t \cdot z\right)\right)\right)} \]
    12. Step-by-step derivation
      1. associate-*r*54.1%

        \[\leadsto \color{blue}{\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y + -0.3333333333333333 \cdot \left(t \cdot z\right)\right)} \]
      2. associate-*r*54.5%

        \[\leadsto \left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y + \color{blue}{\left(-0.3333333333333333 \cdot t\right) \cdot z}\right) \]
      3. *-commutative54.5%

        \[\leadsto \left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y + \color{blue}{z \cdot \left(-0.3333333333333333 \cdot t\right)}\right) \]
    13. Simplified54.5%

      \[\leadsto \color{blue}{\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y + z \cdot \left(-0.3333333333333333 \cdot t\right)\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification74.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{a}{3 \cdot b} \leq -2 \cdot 10^{-43} \lor \neg \left(\frac{a}{3 \cdot b} \leq 10^{-93}\right):\\ \;\;\;\;\sqrt{x} \cdot 2 - \frac{a}{3 \cdot b}\\ \mathbf{else}:\\ \;\;\;\;\left(\sqrt{x} \cdot 2\right) \cdot \cos \left(y + z \cdot \left(-0.3333333333333333 \cdot t\right)\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 3: 71.6% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{a}{3 \cdot b}\\ \mathbf{if}\;t\_1 \leq -2 \cdot 10^{-43} \lor \neg \left(t\_1 \leq 10^{-93}\right):\\ \;\;\;\;\sqrt{x} \cdot 2 - t\_1\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \left(\sqrt{x} \cdot \cos \left(y + -0.3333333333333333 \cdot \left(z \cdot t\right)\right)\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (/ a (* 3.0 b))))
   (if (or (<= t_1 -2e-43) (not (<= t_1 1e-93)))
     (- (* (sqrt x) 2.0) t_1)
     (* 2.0 (* (sqrt x) (cos (+ y (* -0.3333333333333333 (* z t)))))))))
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-43) || !(t_1 <= 1e-93)) {
		tmp = (sqrt(x) * 2.0) - t_1;
	} else {
		tmp = 2.0 * (sqrt(x) * cos((y + (-0.3333333333333333 * (z * t)))));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: t_1
    real(8) :: tmp
    t_1 = a / (3.0d0 * b)
    if ((t_1 <= (-2d-43)) .or. (.not. (t_1 <= 1d-93))) then
        tmp = (sqrt(x) * 2.0d0) - t_1
    else
        tmp = 2.0d0 * (sqrt(x) * cos((y + ((-0.3333333333333333d0) * (z * t)))))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = a / (3.0 * b);
	double tmp;
	if ((t_1 <= -2e-43) || !(t_1 <= 1e-93)) {
		tmp = (Math.sqrt(x) * 2.0) - t_1;
	} else {
		tmp = 2.0 * (Math.sqrt(x) * Math.cos((y + (-0.3333333333333333 * (z * t)))));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = a / (3.0 * b)
	tmp = 0
	if (t_1 <= -2e-43) or not (t_1 <= 1e-93):
		tmp = (math.sqrt(x) * 2.0) - t_1
	else:
		tmp = 2.0 * (math.sqrt(x) * math.cos((y + (-0.3333333333333333 * (z * t)))))
	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-43) || !(t_1 <= 1e-93))
		tmp = Float64(Float64(sqrt(x) * 2.0) - t_1);
	else
		tmp = Float64(2.0 * Float64(sqrt(x) * cos(Float64(y + Float64(-0.3333333333333333 * Float64(z * t))))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = a / (3.0 * b);
	tmp = 0.0;
	if ((t_1 <= -2e-43) || ~((t_1 <= 1e-93)))
		tmp = (sqrt(x) * 2.0) - t_1;
	else
		tmp = 2.0 * (sqrt(x) * cos((y + (-0.3333333333333333 * (z * t)))));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(a / N[(3.0 * b), $MachinePrecision]), $MachinePrecision]}, If[Or[LessEqual[t$95$1, -2e-43], N[Not[LessEqual[t$95$1, 1e-93]], $MachinePrecision]], N[(N[(N[Sqrt[x], $MachinePrecision] * 2.0), $MachinePrecision] - t$95$1), $MachinePrecision], N[(2.0 * N[(N[Sqrt[x], $MachinePrecision] * N[Cos[N[(y + N[(-0.3333333333333333 * N[(z * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \frac{a}{3 \cdot b}\\
\mathbf{if}\;t\_1 \leq -2 \cdot 10^{-43} \lor \neg \left(t\_1 \leq 10^{-93}\right):\\
\;\;\;\;\sqrt{x} \cdot 2 - t\_1\\

\mathbf{else}:\\
\;\;\;\;2 \cdot \left(\sqrt{x} \cdot \cos \left(y + -0.3333333333333333 \cdot \left(z \cdot t\right)\right)\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (/.f64 a (*.f64 b #s(literal 3 binary64))) < -2.00000000000000015e-43 or 9.999999999999999e-94 < (/.f64 a (*.f64 b #s(literal 3 binary64)))

    1. Initial program 81.4%

      \[\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - \frac{a}{b \cdot 3} \]
    2. Step-by-step derivation
      1. *-commutative81.4%

        \[\leadsto \color{blue}{\cos \left(y - \frac{z \cdot t}{3}\right) \cdot \left(2 \cdot \sqrt{x}\right)} - \frac{a}{b \cdot 3} \]
      2. *-commutative81.4%

        \[\leadsto \cos \left(y - \frac{\color{blue}{t \cdot z}}{3}\right) \cdot \left(2 \cdot \sqrt{x}\right) - \frac{a}{b \cdot 3} \]
      3. *-commutative81.4%

        \[\leadsto \color{blue}{\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{t \cdot z}{3}\right)} - \frac{a}{b \cdot 3} \]
      4. *-commutative81.4%

        \[\leadsto \left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{\color{blue}{z \cdot t}}{3}\right) - \frac{a}{b \cdot 3} \]
      5. associate-/l*81.3%

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

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

      \[\leadsto \color{blue}{\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - z \cdot \frac{t}{3}\right) - \frac{a}{3 \cdot b}} \]
    4. Add Preprocessing
    5. Taylor expanded in z around 0 89.1%

      \[\leadsto \color{blue}{2 \cdot \left(\sqrt{x} \cdot \cos y\right)} - \frac{a}{3 \cdot b} \]
    6. Step-by-step derivation
      1. associate-*r*89.1%

        \[\leadsto \color{blue}{\left(2 \cdot \sqrt{x}\right) \cdot \cos y} - \frac{a}{3 \cdot b} \]
      2. *-commutative89.1%

        \[\leadsto \color{blue}{\cos y \cdot \left(2 \cdot \sqrt{x}\right)} - \frac{a}{3 \cdot b} \]
      3. *-commutative89.1%

        \[\leadsto \cos y \cdot \color{blue}{\left(\sqrt{x} \cdot 2\right)} - \frac{a}{3 \cdot b} \]
    7. Simplified89.1%

      \[\leadsto \color{blue}{\cos y \cdot \left(\sqrt{x} \cdot 2\right)} - \frac{a}{3 \cdot b} \]
    8. Taylor expanded in y around 0 86.3%

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

    if -2.00000000000000015e-43 < (/.f64 a (*.f64 b #s(literal 3 binary64))) < 9.999999999999999e-94

    1. Initial program 56.2%

      \[\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - \frac{a}{b \cdot 3} \]
    2. Simplified56.6%

      \[\leadsto \color{blue}{\mathsf{fma}\left(2, \sqrt{x} \cdot \cos \left(\mathsf{fma}\left(z, t \cdot -0.3333333333333333, y\right)\right), a \cdot \frac{-0.3333333333333333}{b}\right)} \]
    3. Add Preprocessing
    4. Taylor expanded in x around inf 54.1%

      \[\leadsto \color{blue}{2 \cdot \left(\sqrt{x} \cdot \cos \left(y + -0.3333333333333333 \cdot \left(t \cdot z\right)\right)\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification74.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{a}{3 \cdot b} \leq -2 \cdot 10^{-43} \lor \neg \left(\frac{a}{3 \cdot b} \leq 10^{-93}\right):\\ \;\;\;\;\sqrt{x} \cdot 2 - \frac{a}{3 \cdot b}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \left(\sqrt{x} \cdot \cos \left(y + -0.3333333333333333 \cdot \left(z \cdot t\right)\right)\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 4: 65.5% accurate, 2.0× speedup?

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

\\
\sqrt{x} \cdot 2 - \frac{a}{3 \cdot b}
\end{array}
Derivation
  1. Initial program 72.0%

    \[\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - \frac{a}{b \cdot 3} \]
  2. Step-by-step derivation
    1. *-commutative72.0%

      \[\leadsto \color{blue}{\cos \left(y - \frac{z \cdot t}{3}\right) \cdot \left(2 \cdot \sqrt{x}\right)} - \frac{a}{b \cdot 3} \]
    2. *-commutative72.0%

      \[\leadsto \cos \left(y - \frac{\color{blue}{t \cdot z}}{3}\right) \cdot \left(2 \cdot \sqrt{x}\right) - \frac{a}{b \cdot 3} \]
    3. *-commutative72.0%

      \[\leadsto \color{blue}{\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{t \cdot z}{3}\right)} - \frac{a}{b \cdot 3} \]
    4. *-commutative72.0%

      \[\leadsto \left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{\color{blue}{z \cdot t}}{3}\right) - \frac{a}{b \cdot 3} \]
    5. associate-/l*72.2%

      \[\leadsto \left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \color{blue}{z \cdot \frac{t}{3}}\right) - \frac{a}{b \cdot 3} \]
    6. *-commutative72.2%

      \[\leadsto \left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - z \cdot \frac{t}{3}\right) - \frac{a}{\color{blue}{3 \cdot b}} \]
  3. Simplified72.2%

    \[\leadsto \color{blue}{\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - z \cdot \frac{t}{3}\right) - \frac{a}{3 \cdot b}} \]
  4. Add Preprocessing
  5. Taylor expanded in z around 0 77.9%

    \[\leadsto \color{blue}{2 \cdot \left(\sqrt{x} \cdot \cos y\right)} - \frac{a}{3 \cdot b} \]
  6. Step-by-step derivation
    1. associate-*r*77.9%

      \[\leadsto \color{blue}{\left(2 \cdot \sqrt{x}\right) \cdot \cos y} - \frac{a}{3 \cdot b} \]
    2. *-commutative77.9%

      \[\leadsto \color{blue}{\cos y \cdot \left(2 \cdot \sqrt{x}\right)} - \frac{a}{3 \cdot b} \]
    3. *-commutative77.9%

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

    \[\leadsto \color{blue}{\cos y \cdot \left(\sqrt{x} \cdot 2\right)} - \frac{a}{3 \cdot b} \]
  8. Taylor expanded in y around 0 68.1%

    \[\leadsto \color{blue}{2 \cdot \sqrt{x}} - \frac{a}{3 \cdot b} \]
  9. Final simplification68.1%

    \[\leadsto \sqrt{x} \cdot 2 - \frac{a}{3 \cdot b} \]
  10. Add Preprocessing

Alternative 5: 65.4% accurate, 2.0× speedup?

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

\\
\sqrt{x} \cdot 2 + a \cdot \frac{-0.3333333333333333}{b}
\end{array}
Derivation
  1. Initial program 72.0%

    \[\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - \frac{a}{b \cdot 3} \]
  2. Step-by-step derivation
    1. *-commutative72.0%

      \[\leadsto \color{blue}{\cos \left(y - \frac{z \cdot t}{3}\right) \cdot \left(2 \cdot \sqrt{x}\right)} - \frac{a}{b \cdot 3} \]
    2. *-commutative72.0%

      \[\leadsto \cos \left(y - \frac{\color{blue}{t \cdot z}}{3}\right) \cdot \left(2 \cdot \sqrt{x}\right) - \frac{a}{b \cdot 3} \]
    3. *-commutative72.0%

      \[\leadsto \color{blue}{\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{t \cdot z}{3}\right)} - \frac{a}{b \cdot 3} \]
    4. *-commutative72.0%

      \[\leadsto \left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{\color{blue}{z \cdot t}}{3}\right) - \frac{a}{b \cdot 3} \]
    5. associate-/l*72.2%

      \[\leadsto \left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \color{blue}{z \cdot \frac{t}{3}}\right) - \frac{a}{b \cdot 3} \]
    6. *-commutative72.2%

      \[\leadsto \left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - z \cdot \frac{t}{3}\right) - \frac{a}{\color{blue}{3 \cdot b}} \]
  3. Simplified72.2%

    \[\leadsto \color{blue}{\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - z \cdot \frac{t}{3}\right) - \frac{a}{3 \cdot b}} \]
  4. Add Preprocessing
  5. Taylor expanded in z around 0 77.9%

    \[\leadsto \color{blue}{2 \cdot \left(\sqrt{x} \cdot \cos y\right)} - \frac{a}{3 \cdot b} \]
  6. Step-by-step derivation
    1. associate-*r*77.9%

      \[\leadsto \color{blue}{\left(2 \cdot \sqrt{x}\right) \cdot \cos y} - \frac{a}{3 \cdot b} \]
    2. *-commutative77.9%

      \[\leadsto \color{blue}{\cos y \cdot \left(2 \cdot \sqrt{x}\right)} - \frac{a}{3 \cdot b} \]
    3. *-commutative77.9%

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

    \[\leadsto \color{blue}{\cos y \cdot \left(\sqrt{x} \cdot 2\right)} - \frac{a}{3 \cdot b} \]
  8. Step-by-step derivation
    1. add-sqr-sqrt77.8%

      \[\leadsto \cos y \cdot \left(\color{blue}{\left(\sqrt{\sqrt{x}} \cdot \sqrt{\sqrt{x}}\right)} \cdot 2\right) - \frac{a}{3 \cdot b} \]
    2. pow277.8%

      \[\leadsto \cos y \cdot \left(\color{blue}{{\left(\sqrt{\sqrt{x}}\right)}^{2}} \cdot 2\right) - \frac{a}{3 \cdot b} \]
    3. pow1/277.8%

      \[\leadsto \cos y \cdot \left({\left(\sqrt{\color{blue}{{x}^{0.5}}}\right)}^{2} \cdot 2\right) - \frac{a}{3 \cdot b} \]
    4. sqrt-pow177.8%

      \[\leadsto \cos y \cdot \left({\color{blue}{\left({x}^{\left(\frac{0.5}{2}\right)}\right)}}^{2} \cdot 2\right) - \frac{a}{3 \cdot b} \]
    5. metadata-eval77.8%

      \[\leadsto \cos y \cdot \left({\left({x}^{\color{blue}{0.25}}\right)}^{2} \cdot 2\right) - \frac{a}{3 \cdot b} \]
  9. Applied egg-rr77.8%

    \[\leadsto \cos y \cdot \left(\color{blue}{{\left({x}^{0.25}\right)}^{2}} \cdot 2\right) - \frac{a}{3 \cdot b} \]
  10. Taylor expanded in y around 0 68.0%

    \[\leadsto \color{blue}{2 \cdot \sqrt{x} - 0.3333333333333333 \cdot \frac{a}{b}} \]
  11. Step-by-step derivation
    1. cancel-sign-sub-inv68.0%

      \[\leadsto \color{blue}{2 \cdot \sqrt{x} + \left(-0.3333333333333333\right) \cdot \frac{a}{b}} \]
    2. metadata-eval68.0%

      \[\leadsto 2 \cdot \sqrt{x} + \color{blue}{-0.3333333333333333} \cdot \frac{a}{b} \]
    3. associate-*r/68.0%

      \[\leadsto 2 \cdot \sqrt{x} + \color{blue}{\frac{-0.3333333333333333 \cdot a}{b}} \]
    4. associate-*l/68.0%

      \[\leadsto 2 \cdot \sqrt{x} + \color{blue}{\frac{-0.3333333333333333}{b} \cdot a} \]
    5. *-commutative68.0%

      \[\leadsto 2 \cdot \sqrt{x} + \color{blue}{a \cdot \frac{-0.3333333333333333}{b}} \]
  12. Simplified68.0%

    \[\leadsto \color{blue}{2 \cdot \sqrt{x} + a \cdot \frac{-0.3333333333333333}{b}} \]
  13. Final simplification68.0%

    \[\leadsto \sqrt{x} \cdot 2 + a \cdot \frac{-0.3333333333333333}{b} \]
  14. Add Preprocessing

Alternative 6: 50.5% accurate, 43.4× speedup?

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

\\
\frac{a}{b \cdot -3}
\end{array}
Derivation
  1. Initial program 72.0%

    \[\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - \frac{a}{b \cdot 3} \]
  2. Simplified71.9%

    \[\leadsto \color{blue}{\mathsf{fma}\left(2, \sqrt{x} \cdot \cos \left(\mathsf{fma}\left(z, t \cdot -0.3333333333333333, y\right)\right), a \cdot \frac{-0.3333333333333333}{b}\right)} \]
  3. Add Preprocessing
  4. Taylor expanded in a around inf 52.5%

    \[\leadsto \color{blue}{-0.3333333333333333 \cdot \frac{a}{b}} \]
  5. Step-by-step derivation
    1. metadata-eval52.5%

      \[\leadsto \color{blue}{\frac{1}{-3}} \cdot \frac{a}{b} \]
    2. times-frac52.6%

      \[\leadsto \color{blue}{\frac{1 \cdot a}{-3 \cdot b}} \]
    3. *-lft-identity52.6%

      \[\leadsto \frac{\color{blue}{a}}{-3 \cdot b} \]
    4. *-commutative52.6%

      \[\leadsto \frac{a}{\color{blue}{b \cdot -3}} \]
  6. Simplified52.6%

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

Alternative 7: 50.4% accurate, 43.4× 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 72.0%

    \[\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - \frac{a}{b \cdot 3} \]
  2. Simplified71.9%

    \[\leadsto \color{blue}{\mathsf{fma}\left(2, \sqrt{x} \cdot \cos \left(\mathsf{fma}\left(z, t \cdot -0.3333333333333333, y\right)\right), a \cdot \frac{-0.3333333333333333}{b}\right)} \]
  3. Add Preprocessing
  4. Taylor expanded in a around inf 52.5%

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

Developer Target 1: 74.4% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{\frac{0.3333333333333333}{z}}{t}\\ t_2 := \frac{\frac{a}{3}}{b}\\ t_3 := 2 \cdot \sqrt{x}\\ \mathbf{if}\;z < -1.3793337487235141 \cdot 10^{+129}:\\ \;\;\;\;t\_3 \cdot \cos \left(\frac{1}{y} - t\_1\right) - t\_2\\ \mathbf{elif}\;z < 3.516290613555987 \cdot 10^{+106}:\\ \;\;\;\;\left(\sqrt{x} \cdot 2\right) \cdot \cos \left(y - \frac{t}{3} \cdot z\right) - t\_2\\ \mathbf{else}:\\ \;\;\;\;\cos \left(y - t\_1\right) \cdot t\_3 - \frac{\frac{a}{b}}{3}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (/ (/ 0.3333333333333333 z) t))
        (t_2 (/ (/ a 3.0) b))
        (t_3 (* 2.0 (sqrt x))))
   (if (< z -1.3793337487235141e+129)
     (- (* t_3 (cos (- (/ 1.0 y) t_1))) t_2)
     (if (< z 3.516290613555987e+106)
       (- (* (* (sqrt x) 2.0) (cos (- y (* (/ t 3.0) z)))) t_2)
       (- (* (cos (- y t_1)) t_3) (/ (/ a b) 3.0))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = (0.3333333333333333 / z) / t;
	double t_2 = (a / 3.0) / b;
	double t_3 = 2.0 * sqrt(x);
	double tmp;
	if (z < -1.3793337487235141e+129) {
		tmp = (t_3 * cos(((1.0 / y) - t_1))) - t_2;
	} else if (z < 3.516290613555987e+106) {
		tmp = ((sqrt(x) * 2.0) * cos((y - ((t / 3.0) * z)))) - t_2;
	} else {
		tmp = (cos((y - t_1)) * t_3) - ((a / b) / 3.0);
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: t_1
    real(8) :: t_2
    real(8) :: t_3
    real(8) :: tmp
    t_1 = (0.3333333333333333d0 / z) / t
    t_2 = (a / 3.0d0) / b
    t_3 = 2.0d0 * sqrt(x)
    if (z < (-1.3793337487235141d+129)) then
        tmp = (t_3 * cos(((1.0d0 / y) - t_1))) - t_2
    else if (z < 3.516290613555987d+106) then
        tmp = ((sqrt(x) * 2.0d0) * cos((y - ((t / 3.0d0) * z)))) - t_2
    else
        tmp = (cos((y - t_1)) * t_3) - ((a / b) / 3.0d0)
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = (0.3333333333333333 / z) / t;
	double t_2 = (a / 3.0) / b;
	double t_3 = 2.0 * Math.sqrt(x);
	double tmp;
	if (z < -1.3793337487235141e+129) {
		tmp = (t_3 * Math.cos(((1.0 / y) - t_1))) - t_2;
	} else if (z < 3.516290613555987e+106) {
		tmp = ((Math.sqrt(x) * 2.0) * Math.cos((y - ((t / 3.0) * z)))) - t_2;
	} else {
		tmp = (Math.cos((y - t_1)) * t_3) - ((a / b) / 3.0);
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = (0.3333333333333333 / z) / t
	t_2 = (a / 3.0) / b
	t_3 = 2.0 * math.sqrt(x)
	tmp = 0
	if z < -1.3793337487235141e+129:
		tmp = (t_3 * math.cos(((1.0 / y) - t_1))) - t_2
	elif z < 3.516290613555987e+106:
		tmp = ((math.sqrt(x) * 2.0) * math.cos((y - ((t / 3.0) * z)))) - t_2
	else:
		tmp = (math.cos((y - t_1)) * t_3) - ((a / b) / 3.0)
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(Float64(0.3333333333333333 / z) / t)
	t_2 = Float64(Float64(a / 3.0) / b)
	t_3 = Float64(2.0 * sqrt(x))
	tmp = 0.0
	if (z < -1.3793337487235141e+129)
		tmp = Float64(Float64(t_3 * cos(Float64(Float64(1.0 / y) - t_1))) - t_2);
	elseif (z < 3.516290613555987e+106)
		tmp = Float64(Float64(Float64(sqrt(x) * 2.0) * cos(Float64(y - Float64(Float64(t / 3.0) * z)))) - t_2);
	else
		tmp = Float64(Float64(cos(Float64(y - t_1)) * t_3) - Float64(Float64(a / b) / 3.0));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = (0.3333333333333333 / z) / t;
	t_2 = (a / 3.0) / b;
	t_3 = 2.0 * sqrt(x);
	tmp = 0.0;
	if (z < -1.3793337487235141e+129)
		tmp = (t_3 * cos(((1.0 / y) - t_1))) - t_2;
	elseif (z < 3.516290613555987e+106)
		tmp = ((sqrt(x) * 2.0) * cos((y - ((t / 3.0) * z)))) - t_2;
	else
		tmp = (cos((y - t_1)) * t_3) - ((a / b) / 3.0);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(N[(0.3333333333333333 / z), $MachinePrecision] / t), $MachinePrecision]}, Block[{t$95$2 = N[(N[(a / 3.0), $MachinePrecision] / b), $MachinePrecision]}, Block[{t$95$3 = N[(2.0 * N[Sqrt[x], $MachinePrecision]), $MachinePrecision]}, If[Less[z, -1.3793337487235141e+129], N[(N[(t$95$3 * N[Cos[N[(N[(1.0 / y), $MachinePrecision] - t$95$1), $MachinePrecision]], $MachinePrecision]), $MachinePrecision] - t$95$2), $MachinePrecision], If[Less[z, 3.516290613555987e+106], N[(N[(N[(N[Sqrt[x], $MachinePrecision] * 2.0), $MachinePrecision] * N[Cos[N[(y - N[(N[(t / 3.0), $MachinePrecision] * z), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision] - t$95$2), $MachinePrecision], N[(N[(N[Cos[N[(y - t$95$1), $MachinePrecision]], $MachinePrecision] * t$95$3), $MachinePrecision] - N[(N[(a / b), $MachinePrecision] / 3.0), $MachinePrecision]), $MachinePrecision]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \frac{\frac{0.3333333333333333}{z}}{t}\\
t_2 := \frac{\frac{a}{3}}{b}\\
t_3 := 2 \cdot \sqrt{x}\\
\mathbf{if}\;z < -1.3793337487235141 \cdot 10^{+129}:\\
\;\;\;\;t\_3 \cdot \cos \left(\frac{1}{y} - t\_1\right) - t\_2\\

\mathbf{elif}\;z < 3.516290613555987 \cdot 10^{+106}:\\
\;\;\;\;\left(\sqrt{x} \cdot 2\right) \cdot \cos \left(y - \frac{t}{3} \cdot z\right) - t\_2\\

\mathbf{else}:\\
\;\;\;\;\cos \left(y - t\_1\right) \cdot t\_3 - \frac{\frac{a}{b}}{3}\\


\end{array}
\end{array}

Reproduce

?
herbie shell --seed 2024123 
(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))))