Numeric.SpecFunctions:incompleteGamma from math-functions-0.1.5.2, B

Percentage Accurate: 99.4% → 99.4%
Time: 9.9s
Alternatives: 16
Speedup: 1.0×

Specification

?
\[\begin{array}{l} \\ \left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \end{array} \]
(FPCore (x y)
 :precision binary64
 (* (* 3.0 (sqrt x)) (- (+ y (/ 1.0 (* x 9.0))) 1.0)))
double code(double x, double y) {
	return (3.0 * sqrt(x)) * ((y + (1.0 / (x * 9.0))) - 1.0);
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = (3.0d0 * sqrt(x)) * ((y + (1.0d0 / (x * 9.0d0))) - 1.0d0)
end function
public static double code(double x, double y) {
	return (3.0 * Math.sqrt(x)) * ((y + (1.0 / (x * 9.0))) - 1.0);
}
def code(x, y):
	return (3.0 * math.sqrt(x)) * ((y + (1.0 / (x * 9.0))) - 1.0)
function code(x, y)
	return Float64(Float64(3.0 * sqrt(x)) * Float64(Float64(y + Float64(1.0 / Float64(x * 9.0))) - 1.0))
end
function tmp = code(x, y)
	tmp = (3.0 * sqrt(x)) * ((y + (1.0 / (x * 9.0))) - 1.0);
end
code[x_, y_] := N[(N[(3.0 * N[Sqrt[x], $MachinePrecision]), $MachinePrecision] * N[(N[(y + N[(1.0 / N[(x * 9.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - 1.0), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)
\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 16 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: 99.4% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \end{array} \]
(FPCore (x y)
 :precision binary64
 (* (* 3.0 (sqrt x)) (- (+ y (/ 1.0 (* x 9.0))) 1.0)))
double code(double x, double y) {
	return (3.0 * sqrt(x)) * ((y + (1.0 / (x * 9.0))) - 1.0);
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = (3.0d0 * sqrt(x)) * ((y + (1.0d0 / (x * 9.0d0))) - 1.0d0)
end function
public static double code(double x, double y) {
	return (3.0 * Math.sqrt(x)) * ((y + (1.0 / (x * 9.0))) - 1.0);
}
def code(x, y):
	return (3.0 * math.sqrt(x)) * ((y + (1.0 / (x * 9.0))) - 1.0)
function code(x, y)
	return Float64(Float64(3.0 * sqrt(x)) * Float64(Float64(y + Float64(1.0 / Float64(x * 9.0))) - 1.0))
end
function tmp = code(x, y)
	tmp = (3.0 * sqrt(x)) * ((y + (1.0 / (x * 9.0))) - 1.0);
end
code[x_, y_] := N[(N[(3.0 * N[Sqrt[x], $MachinePrecision]), $MachinePrecision] * N[(N[(y + N[(1.0 / N[(x * 9.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - 1.0), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)
\end{array}

Alternative 1: 99.4% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \sqrt{x \cdot 9} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right) \end{array} \]
(FPCore (x y)
 :precision binary64
 (* (sqrt (* x 9.0)) (+ y (+ (/ 0.1111111111111111 x) -1.0))))
double code(double x, double y) {
	return sqrt((x * 9.0)) * (y + ((0.1111111111111111 / x) + -1.0));
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = sqrt((x * 9.0d0)) * (y + ((0.1111111111111111d0 / x) + (-1.0d0)))
end function
public static double code(double x, double y) {
	return Math.sqrt((x * 9.0)) * (y + ((0.1111111111111111 / x) + -1.0));
}
def code(x, y):
	return math.sqrt((x * 9.0)) * (y + ((0.1111111111111111 / x) + -1.0))
function code(x, y)
	return Float64(sqrt(Float64(x * 9.0)) * Float64(y + Float64(Float64(0.1111111111111111 / x) + -1.0)))
end
function tmp = code(x, y)
	tmp = sqrt((x * 9.0)) * (y + ((0.1111111111111111 / x) + -1.0));
end
code[x_, y_] := N[(N[Sqrt[N[(x * 9.0), $MachinePrecision]], $MachinePrecision] * N[(y + N[(N[(0.1111111111111111 / x), $MachinePrecision] + -1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\sqrt{x \cdot 9} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)
\end{array}
Derivation
  1. Initial program 99.3%

    \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
  2. Step-by-step derivation
    1. associate-*l*99.3%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
    2. associate--l+99.3%

      \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
    3. sub-neg99.3%

      \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right)\right) \]
    4. *-commutative99.3%

      \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{1}{\color{blue}{9 \cdot x}} + \left(-1\right)\right)\right)\right) \]
    5. associate-/r*99.3%

      \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\color{blue}{\frac{\frac{1}{9}}{x}} + \left(-1\right)\right)\right)\right) \]
    6. metadata-eval99.3%

      \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right)\right) \]
    7. metadata-eval99.3%

      \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right)\right) \]
  3. Simplified99.3%

    \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)\right)} \]
  4. Step-by-step derivation
    1. associate-*r*99.3%

      \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)} \]
    2. distribute-lft-in99.3%

      \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right)} \]
    3. *-commutative99.3%

      \[\leadsto \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
    4. metadata-eval99.3%

      \[\leadsto \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
    5. sqrt-prod99.3%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9}} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
    6. *-commutative99.3%

      \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
    7. metadata-eval99.3%

      \[\leadsto \sqrt{x \cdot 9} \cdot y + \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
    8. sqrt-prod99.5%

      \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\sqrt{x \cdot 9}} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
    9. +-commutative99.5%

      \[\leadsto \sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \color{blue}{\left(-1 + \frac{0.1111111111111111}{x}\right)} \]
  5. Applied egg-rr99.5%

    \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \left(-1 + \frac{0.1111111111111111}{x}\right)} \]
  6. Step-by-step derivation
    1. distribute-lft-out99.5%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y + \left(-1 + \frac{0.1111111111111111}{x}\right)\right)} \]
    2. associate-+r+99.5%

      \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(\left(y + -1\right) + \frac{0.1111111111111111}{x}\right)} \]
    3. metadata-eval99.5%

      \[\leadsto \sqrt{x \cdot 9} \cdot \left(\left(y + \color{blue}{\left(-1\right)}\right) + \frac{0.1111111111111111}{x}\right) \]
    4. sub-neg99.5%

      \[\leadsto \sqrt{x \cdot 9} \cdot \left(\color{blue}{\left(y - 1\right)} + \frac{0.1111111111111111}{x}\right) \]
    5. associate-+l-99.5%

      \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
  7. Simplified99.5%

    \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
  8. Final simplification99.5%

    \[\leadsto \sqrt{x \cdot 9} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right) \]

Alternative 2: 85.7% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := \sqrt{x \cdot 9}\\ \mathbf{if}\;x \leq 2.5 \cdot 10^{-43}:\\ \;\;\;\;\frac{3}{x} \cdot \frac{\sqrt{x}}{9}\\ \mathbf{elif}\;x \leq 2.9 \cdot 10^{-24}:\\ \;\;\;\;t_0 \cdot y\\ \mathbf{elif}\;x \leq 0.00062:\\ \;\;\;\;t_0 \cdot \left(-1 - \frac{-0.1111111111111111}{x}\right)\\ \mathbf{else}:\\ \;\;\;\;t_0 \cdot \left(y + -1\right)\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (let* ((t_0 (sqrt (* x 9.0))))
   (if (<= x 2.5e-43)
     (* (/ 3.0 x) (/ (sqrt x) 9.0))
     (if (<= x 2.9e-24)
       (* t_0 y)
       (if (<= x 0.00062)
         (* t_0 (- -1.0 (/ -0.1111111111111111 x)))
         (* t_0 (+ y -1.0)))))))
double code(double x, double y) {
	double t_0 = sqrt((x * 9.0));
	double tmp;
	if (x <= 2.5e-43) {
		tmp = (3.0 / x) * (sqrt(x) / 9.0);
	} else if (x <= 2.9e-24) {
		tmp = t_0 * y;
	} else if (x <= 0.00062) {
		tmp = t_0 * (-1.0 - (-0.1111111111111111 / x));
	} else {
		tmp = t_0 * (y + -1.0);
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: t_0
    real(8) :: tmp
    t_0 = sqrt((x * 9.0d0))
    if (x <= 2.5d-43) then
        tmp = (3.0d0 / x) * (sqrt(x) / 9.0d0)
    else if (x <= 2.9d-24) then
        tmp = t_0 * y
    else if (x <= 0.00062d0) then
        tmp = t_0 * ((-1.0d0) - ((-0.1111111111111111d0) / x))
    else
        tmp = t_0 * (y + (-1.0d0))
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double t_0 = Math.sqrt((x * 9.0));
	double tmp;
	if (x <= 2.5e-43) {
		tmp = (3.0 / x) * (Math.sqrt(x) / 9.0);
	} else if (x <= 2.9e-24) {
		tmp = t_0 * y;
	} else if (x <= 0.00062) {
		tmp = t_0 * (-1.0 - (-0.1111111111111111 / x));
	} else {
		tmp = t_0 * (y + -1.0);
	}
	return tmp;
}
def code(x, y):
	t_0 = math.sqrt((x * 9.0))
	tmp = 0
	if x <= 2.5e-43:
		tmp = (3.0 / x) * (math.sqrt(x) / 9.0)
	elif x <= 2.9e-24:
		tmp = t_0 * y
	elif x <= 0.00062:
		tmp = t_0 * (-1.0 - (-0.1111111111111111 / x))
	else:
		tmp = t_0 * (y + -1.0)
	return tmp
function code(x, y)
	t_0 = sqrt(Float64(x * 9.0))
	tmp = 0.0
	if (x <= 2.5e-43)
		tmp = Float64(Float64(3.0 / x) * Float64(sqrt(x) / 9.0));
	elseif (x <= 2.9e-24)
		tmp = Float64(t_0 * y);
	elseif (x <= 0.00062)
		tmp = Float64(t_0 * Float64(-1.0 - Float64(-0.1111111111111111 / x)));
	else
		tmp = Float64(t_0 * Float64(y + -1.0));
	end
	return tmp
end
function tmp_2 = code(x, y)
	t_0 = sqrt((x * 9.0));
	tmp = 0.0;
	if (x <= 2.5e-43)
		tmp = (3.0 / x) * (sqrt(x) / 9.0);
	elseif (x <= 2.9e-24)
		tmp = t_0 * y;
	elseif (x <= 0.00062)
		tmp = t_0 * (-1.0 - (-0.1111111111111111 / x));
	else
		tmp = t_0 * (y + -1.0);
	end
	tmp_2 = tmp;
end
code[x_, y_] := Block[{t$95$0 = N[Sqrt[N[(x * 9.0), $MachinePrecision]], $MachinePrecision]}, If[LessEqual[x, 2.5e-43], N[(N[(3.0 / x), $MachinePrecision] * N[(N[Sqrt[x], $MachinePrecision] / 9.0), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 2.9e-24], N[(t$95$0 * y), $MachinePrecision], If[LessEqual[x, 0.00062], N[(t$95$0 * N[(-1.0 - N[(-0.1111111111111111 / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(t$95$0 * N[(y + -1.0), $MachinePrecision]), $MachinePrecision]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := \sqrt{x \cdot 9}\\
\mathbf{if}\;x \leq 2.5 \cdot 10^{-43}:\\
\;\;\;\;\frac{3}{x} \cdot \frac{\sqrt{x}}{9}\\

\mathbf{elif}\;x \leq 2.9 \cdot 10^{-24}:\\
\;\;\;\;t_0 \cdot y\\

\mathbf{elif}\;x \leq 0.00062:\\
\;\;\;\;t_0 \cdot \left(-1 - \frac{-0.1111111111111111}{x}\right)\\

\mathbf{else}:\\
\;\;\;\;t_0 \cdot \left(y + -1\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if x < 2.50000000000000009e-43

    1. Initial program 99.2%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. associate-*l*99.2%

        \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      2. associate--l+99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      3. sub-neg99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right)\right) \]
      4. *-commutative99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{1}{\color{blue}{9 \cdot x}} + \left(-1\right)\right)\right)\right) \]
      5. associate-/r*99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\color{blue}{\frac{\frac{1}{9}}{x}} + \left(-1\right)\right)\right)\right) \]
      6. metadata-eval99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right)\right) \]
      7. metadata-eval99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right)\right) \]
    3. Simplified99.2%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)\right)} \]
    4. Taylor expanded in x around 0 80.4%

      \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\frac{0.1111111111111111}{x}}\right) \]
    5. Step-by-step derivation
      1. associate-*r*80.6%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \frac{0.1111111111111111}{x}} \]
      2. clear-num80.6%

        \[\leadsto \left(3 \cdot \sqrt{x}\right) \cdot \color{blue}{\frac{1}{\frac{x}{0.1111111111111111}}} \]
      3. un-div-inv80.6%

        \[\leadsto \color{blue}{\frac{3 \cdot \sqrt{x}}{\frac{x}{0.1111111111111111}}} \]
      4. div-inv80.7%

        \[\leadsto \frac{3 \cdot \sqrt{x}}{\color{blue}{x \cdot \frac{1}{0.1111111111111111}}} \]
      5. metadata-eval80.7%

        \[\leadsto \frac{3 \cdot \sqrt{x}}{x \cdot \color{blue}{9}} \]
    6. Applied egg-rr80.7%

      \[\leadsto \color{blue}{\frac{3 \cdot \sqrt{x}}{x \cdot 9}} \]
    7. Step-by-step derivation
      1. times-frac80.7%

        \[\leadsto \color{blue}{\frac{3}{x} \cdot \frac{\sqrt{x}}{9}} \]
    8. Simplified80.7%

      \[\leadsto \color{blue}{\frac{3}{x} \cdot \frac{\sqrt{x}}{9}} \]

    if 2.50000000000000009e-43 < x < 2.8999999999999999e-24

    1. Initial program 99.1%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. associate-*l*99.1%

        \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      2. associate--l+99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      3. sub-neg99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right)\right) \]
      4. *-commutative99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{1}{\color{blue}{9 \cdot x}} + \left(-1\right)\right)\right)\right) \]
      5. associate-/r*99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\color{blue}{\frac{\frac{1}{9}}{x}} + \left(-1\right)\right)\right)\right) \]
      6. metadata-eval99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right)\right) \]
      7. metadata-eval99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right)\right) \]
    3. Simplified99.1%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)\right)} \]
    4. Step-by-step derivation
      1. associate-*r*99.3%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)} \]
      2. distribute-lft-in99.3%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right)} \]
      3. *-commutative99.3%

        \[\leadsto \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      4. metadata-eval99.3%

        \[\leadsto \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      5. sqrt-prod99.7%

        \[\leadsto \color{blue}{\sqrt{x \cdot 9}} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      6. *-commutative99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      7. metadata-eval99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      8. sqrt-prod99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\sqrt{x \cdot 9}} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      9. +-commutative99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \color{blue}{\left(-1 + \frac{0.1111111111111111}{x}\right)} \]
    5. Applied egg-rr99.7%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \left(-1 + \frac{0.1111111111111111}{x}\right)} \]
    6. Step-by-step derivation
      1. distribute-lft-out99.7%

        \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y + \left(-1 + \frac{0.1111111111111111}{x}\right)\right)} \]
      2. associate-+r+99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(\left(y + -1\right) + \frac{0.1111111111111111}{x}\right)} \]
      3. metadata-eval99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\left(y + \color{blue}{\left(-1\right)}\right) + \frac{0.1111111111111111}{x}\right) \]
      4. sub-neg99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\color{blue}{\left(y - 1\right)} + \frac{0.1111111111111111}{x}\right) \]
      5. associate-+l-99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
    7. Simplified99.7%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
    8. Taylor expanded in y around inf 78.3%

      \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{y} \]

    if 2.8999999999999999e-24 < x < 6.2e-4

    1. Initial program 99.5%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. associate-*l*99.2%

        \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      2. associate--l+99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      3. sub-neg99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right)\right) \]
      4. *-commutative99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{1}{\color{blue}{9 \cdot x}} + \left(-1\right)\right)\right)\right) \]
      5. associate-/r*99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\color{blue}{\frac{\frac{1}{9}}{x}} + \left(-1\right)\right)\right)\right) \]
      6. metadata-eval99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right)\right) \]
      7. metadata-eval99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right)\right) \]
    3. Simplified99.2%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)\right)} \]
    4. Step-by-step derivation
      1. associate-*r*99.3%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)} \]
      2. distribute-lft-in99.3%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right)} \]
      3. *-commutative99.3%

        \[\leadsto \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      4. metadata-eval99.3%

        \[\leadsto \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      5. sqrt-prod99.3%

        \[\leadsto \color{blue}{\sqrt{x \cdot 9}} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      6. *-commutative99.3%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      7. metadata-eval99.3%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      8. sqrt-prod99.6%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\sqrt{x \cdot 9}} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      9. +-commutative99.6%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \color{blue}{\left(-1 + \frac{0.1111111111111111}{x}\right)} \]
    5. Applied egg-rr99.6%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \left(-1 + \frac{0.1111111111111111}{x}\right)} \]
    6. Step-by-step derivation
      1. distribute-lft-out99.6%

        \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y + \left(-1 + \frac{0.1111111111111111}{x}\right)\right)} \]
      2. associate-+r+99.6%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(\left(y + -1\right) + \frac{0.1111111111111111}{x}\right)} \]
      3. metadata-eval99.6%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\left(y + \color{blue}{\left(-1\right)}\right) + \frac{0.1111111111111111}{x}\right) \]
      4. sub-neg99.6%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\color{blue}{\left(y - 1\right)} + \frac{0.1111111111111111}{x}\right) \]
      5. associate-+l-99.6%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
    7. Simplified99.6%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
    8. Taylor expanded in y around 0 74.0%

      \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(0.1111111111111111 \cdot \frac{1}{x} - 1\right)} \]
    9. Step-by-step derivation
      1. sub-neg74.0%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(0.1111111111111111 \cdot \frac{1}{x} + \left(-1\right)\right)} \]
      2. associate-*r/74.0%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\color{blue}{\frac{0.1111111111111111 \cdot 1}{x}} + \left(-1\right)\right) \]
      3. metadata-eval74.0%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right) \]
      4. metadata-eval74.0%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right) \]
      5. +-commutative74.0%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(-1 + \frac{0.1111111111111111}{x}\right)} \]
      6. metadata-eval74.0%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(-1 + \frac{\color{blue}{--0.1111111111111111}}{x}\right) \]
      7. distribute-neg-frac74.0%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(-1 + \color{blue}{\left(-\frac{-0.1111111111111111}{x}\right)}\right) \]
      8. unsub-neg74.0%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(-1 - \frac{-0.1111111111111111}{x}\right)} \]
    10. Simplified74.0%

      \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(-1 - \frac{-0.1111111111111111}{x}\right)} \]

    if 6.2e-4 < x

    1. Initial program 99.3%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. associate-*l*99.4%

        \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      2. associate--l+99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      3. sub-neg99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right)\right) \]
      4. *-commutative99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{1}{\color{blue}{9 \cdot x}} + \left(-1\right)\right)\right)\right) \]
      5. associate-/r*99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\color{blue}{\frac{\frac{1}{9}}{x}} + \left(-1\right)\right)\right)\right) \]
      6. metadata-eval99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right)\right) \]
      7. metadata-eval99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right)\right) \]
    3. Simplified99.4%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)\right)} \]
    4. Step-by-step derivation
      1. associate-*r*99.3%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)} \]
      2. distribute-lft-in99.3%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right)} \]
      3. *-commutative99.3%

        \[\leadsto \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      4. metadata-eval99.3%

        \[\leadsto \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      5. sqrt-prod99.4%

        \[\leadsto \color{blue}{\sqrt{x \cdot 9}} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      6. *-commutative99.4%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      7. metadata-eval99.4%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      8. sqrt-prod99.6%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\sqrt{x \cdot 9}} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      9. +-commutative99.6%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \color{blue}{\left(-1 + \frac{0.1111111111111111}{x}\right)} \]
    5. Applied egg-rr99.6%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \left(-1 + \frac{0.1111111111111111}{x}\right)} \]
    6. Step-by-step derivation
      1. distribute-lft-out99.6%

        \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y + \left(-1 + \frac{0.1111111111111111}{x}\right)\right)} \]
      2. associate-+r+99.6%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(\left(y + -1\right) + \frac{0.1111111111111111}{x}\right)} \]
      3. metadata-eval99.6%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\left(y + \color{blue}{\left(-1\right)}\right) + \frac{0.1111111111111111}{x}\right) \]
      4. sub-neg99.6%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\color{blue}{\left(y - 1\right)} + \frac{0.1111111111111111}{x}\right) \]
      5. associate-+l-99.6%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
    7. Simplified99.6%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
    8. Taylor expanded in x around inf 99.0%

      \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(y - 1\right)} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification88.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq 2.5 \cdot 10^{-43}:\\ \;\;\;\;\frac{3}{x} \cdot \frac{\sqrt{x}}{9}\\ \mathbf{elif}\;x \leq 2.9 \cdot 10^{-24}:\\ \;\;\;\;\sqrt{x \cdot 9} \cdot y\\ \mathbf{elif}\;x \leq 0.00062:\\ \;\;\;\;\sqrt{x \cdot 9} \cdot \left(-1 - \frac{-0.1111111111111111}{x}\right)\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x \cdot 9} \cdot \left(y + -1\right)\\ \end{array} \]

Alternative 3: 62.8% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := 0.3333333333333333 \cdot \frac{\sqrt{x}}{x}\\ t_1 := 3 \cdot \left(y \cdot \sqrt{x}\right)\\ \mathbf{if}\;x \leq 2 \cdot 10^{-42}:\\ \;\;\;\;t_0\\ \mathbf{elif}\;x \leq 7 \cdot 10^{-24}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;x \leq 2 \cdot 10^{-10}:\\ \;\;\;\;t_0\\ \mathbf{elif}\;x \leq 4.5 \cdot 10^{+259}:\\ \;\;\;\;t_1\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot -3\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (let* ((t_0 (* 0.3333333333333333 (/ (sqrt x) x)))
        (t_1 (* 3.0 (* y (sqrt x)))))
   (if (<= x 2e-42)
     t_0
     (if (<= x 7e-24)
       t_1
       (if (<= x 2e-10) t_0 (if (<= x 4.5e+259) t_1 (* (sqrt x) -3.0)))))))
double code(double x, double y) {
	double t_0 = 0.3333333333333333 * (sqrt(x) / x);
	double t_1 = 3.0 * (y * sqrt(x));
	double tmp;
	if (x <= 2e-42) {
		tmp = t_0;
	} else if (x <= 7e-24) {
		tmp = t_1;
	} else if (x <= 2e-10) {
		tmp = t_0;
	} else if (x <= 4.5e+259) {
		tmp = t_1;
	} else {
		tmp = sqrt(x) * -3.0;
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: t_0
    real(8) :: t_1
    real(8) :: tmp
    t_0 = 0.3333333333333333d0 * (sqrt(x) / x)
    t_1 = 3.0d0 * (y * sqrt(x))
    if (x <= 2d-42) then
        tmp = t_0
    else if (x <= 7d-24) then
        tmp = t_1
    else if (x <= 2d-10) then
        tmp = t_0
    else if (x <= 4.5d+259) then
        tmp = t_1
    else
        tmp = sqrt(x) * (-3.0d0)
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double t_0 = 0.3333333333333333 * (Math.sqrt(x) / x);
	double t_1 = 3.0 * (y * Math.sqrt(x));
	double tmp;
	if (x <= 2e-42) {
		tmp = t_0;
	} else if (x <= 7e-24) {
		tmp = t_1;
	} else if (x <= 2e-10) {
		tmp = t_0;
	} else if (x <= 4.5e+259) {
		tmp = t_1;
	} else {
		tmp = Math.sqrt(x) * -3.0;
	}
	return tmp;
}
def code(x, y):
	t_0 = 0.3333333333333333 * (math.sqrt(x) / x)
	t_1 = 3.0 * (y * math.sqrt(x))
	tmp = 0
	if x <= 2e-42:
		tmp = t_0
	elif x <= 7e-24:
		tmp = t_1
	elif x <= 2e-10:
		tmp = t_0
	elif x <= 4.5e+259:
		tmp = t_1
	else:
		tmp = math.sqrt(x) * -3.0
	return tmp
function code(x, y)
	t_0 = Float64(0.3333333333333333 * Float64(sqrt(x) / x))
	t_1 = Float64(3.0 * Float64(y * sqrt(x)))
	tmp = 0.0
	if (x <= 2e-42)
		tmp = t_0;
	elseif (x <= 7e-24)
		tmp = t_1;
	elseif (x <= 2e-10)
		tmp = t_0;
	elseif (x <= 4.5e+259)
		tmp = t_1;
	else
		tmp = Float64(sqrt(x) * -3.0);
	end
	return tmp
end
function tmp_2 = code(x, y)
	t_0 = 0.3333333333333333 * (sqrt(x) / x);
	t_1 = 3.0 * (y * sqrt(x));
	tmp = 0.0;
	if (x <= 2e-42)
		tmp = t_0;
	elseif (x <= 7e-24)
		tmp = t_1;
	elseif (x <= 2e-10)
		tmp = t_0;
	elseif (x <= 4.5e+259)
		tmp = t_1;
	else
		tmp = sqrt(x) * -3.0;
	end
	tmp_2 = tmp;
end
code[x_, y_] := Block[{t$95$0 = N[(0.3333333333333333 * N[(N[Sqrt[x], $MachinePrecision] / x), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$1 = N[(3.0 * N[(y * N[Sqrt[x], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[x, 2e-42], t$95$0, If[LessEqual[x, 7e-24], t$95$1, If[LessEqual[x, 2e-10], t$95$0, If[LessEqual[x, 4.5e+259], t$95$1, N[(N[Sqrt[x], $MachinePrecision] * -3.0), $MachinePrecision]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := 0.3333333333333333 \cdot \frac{\sqrt{x}}{x}\\
t_1 := 3 \cdot \left(y \cdot \sqrt{x}\right)\\
\mathbf{if}\;x \leq 2 \cdot 10^{-42}:\\
\;\;\;\;t_0\\

\mathbf{elif}\;x \leq 7 \cdot 10^{-24}:\\
\;\;\;\;t_1\\

\mathbf{elif}\;x \leq 2 \cdot 10^{-10}:\\
\;\;\;\;t_0\\

\mathbf{elif}\;x \leq 4.5 \cdot 10^{+259}:\\
\;\;\;\;t_1\\

\mathbf{else}:\\
\;\;\;\;\sqrt{x} \cdot -3\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if x < 2.00000000000000008e-42 or 6.9999999999999993e-24 < x < 2.00000000000000007e-10

    1. Initial program 99.2%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. associate-*l*99.2%

        \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      2. associate--l+99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      3. sub-neg99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right)\right) \]
      4. *-commutative99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{1}{\color{blue}{9 \cdot x}} + \left(-1\right)\right)\right)\right) \]
      5. associate-/r*99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\color{blue}{\frac{\frac{1}{9}}{x}} + \left(-1\right)\right)\right)\right) \]
      6. metadata-eval99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right)\right) \]
      7. metadata-eval99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right)\right) \]
    3. Simplified99.1%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)\right)} \]
    4. Taylor expanded in x around 0 80.2%

      \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\frac{0.1111111111111111}{x}}\right) \]
    5. Step-by-step derivation
      1. associate-*r*80.3%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \frac{0.1111111111111111}{x}} \]
      2. clear-num80.3%

        \[\leadsto \left(3 \cdot \sqrt{x}\right) \cdot \color{blue}{\frac{1}{\frac{x}{0.1111111111111111}}} \]
      3. un-div-inv80.3%

        \[\leadsto \color{blue}{\frac{3 \cdot \sqrt{x}}{\frac{x}{0.1111111111111111}}} \]
      4. div-inv80.4%

        \[\leadsto \frac{3 \cdot \sqrt{x}}{\color{blue}{x \cdot \frac{1}{0.1111111111111111}}} \]
      5. metadata-eval80.4%

        \[\leadsto \frac{3 \cdot \sqrt{x}}{x \cdot \color{blue}{9}} \]
    6. Applied egg-rr80.4%

      \[\leadsto \color{blue}{\frac{3 \cdot \sqrt{x}}{x \cdot 9}} \]
    7. Step-by-step derivation
      1. *-commutative80.4%

        \[\leadsto \frac{3 \cdot \sqrt{x}}{\color{blue}{9 \cdot x}} \]
      2. times-frac80.3%

        \[\leadsto \color{blue}{\frac{3}{9} \cdot \frac{\sqrt{x}}{x}} \]
      3. metadata-eval80.3%

        \[\leadsto \color{blue}{0.3333333333333333} \cdot \frac{\sqrt{x}}{x} \]
    8. Simplified80.3%

      \[\leadsto \color{blue}{0.3333333333333333 \cdot \frac{\sqrt{x}}{x}} \]

    if 2.00000000000000008e-42 < x < 6.9999999999999993e-24 or 2.00000000000000007e-10 < x < 4.4999999999999997e259

    1. Initial program 99.4%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. *-commutative99.4%

        \[\leadsto \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
      2. associate-*l*99.4%

        \[\leadsto \color{blue}{\sqrt{x} \cdot \left(3 \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      3. associate--l+99.4%

        \[\leadsto \sqrt{x} \cdot \left(3 \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      4. distribute-lft-in99.4%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\left(3 \cdot y + 3 \cdot \left(\frac{1}{x \cdot 9} - 1\right)\right)} \]
      5. fma-def99.4%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\mathsf{fma}\left(3, y, 3 \cdot \left(\frac{1}{x \cdot 9} - 1\right)\right)} \]
      6. sub-neg99.4%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right) \]
      7. +-commutative99.4%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{\left(\left(-1\right) + \frac{1}{x \cdot 9}\right)}\right) \]
      8. distribute-lft-in99.4%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, \color{blue}{3 \cdot \left(-1\right) + 3 \cdot \frac{1}{x \cdot 9}}\right) \]
      9. metadata-eval99.4%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{-1} + 3 \cdot \frac{1}{x \cdot 9}\right) \]
      10. metadata-eval99.4%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, \color{blue}{-3} + 3 \cdot \frac{1}{x \cdot 9}\right) \]
      11. *-commutative99.4%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + 3 \cdot \frac{1}{\color{blue}{9 \cdot x}}\right) \]
      12. associate-/r*99.4%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + 3 \cdot \color{blue}{\frac{\frac{1}{9}}{x}}\right) \]
      13. associate-*r/99.4%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \color{blue}{\frac{3 \cdot \frac{1}{9}}{x}}\right) \]
      14. metadata-eval99.4%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{3 \cdot \color{blue}{0.1111111111111111}}{x}\right) \]
      15. metadata-eval99.4%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{\color{blue}{0.3333333333333333}}{x}\right) \]
    3. Simplified99.4%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{0.3333333333333333}{x}\right)} \]
    4. Taylor expanded in y around inf 61.5%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot y\right)} \]

    if 4.4999999999999997e259 < x

    1. Initial program 99.2%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. associate-*l*99.3%

        \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      2. associate--l+99.3%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      3. sub-neg99.3%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right)\right) \]
      4. *-commutative99.3%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{1}{\color{blue}{9 \cdot x}} + \left(-1\right)\right)\right)\right) \]
      5. associate-/r*99.3%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\color{blue}{\frac{\frac{1}{9}}{x}} + \left(-1\right)\right)\right)\right) \]
      6. metadata-eval99.3%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right)\right) \]
      7. metadata-eval99.3%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right)\right) \]
    3. Simplified99.3%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)\right)} \]
    4. Step-by-step derivation
      1. associate-*r*99.2%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)} \]
      2. distribute-lft-in99.2%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right)} \]
      3. *-commutative99.2%

        \[\leadsto \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      4. metadata-eval99.2%

        \[\leadsto \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      5. sqrt-prod99.3%

        \[\leadsto \color{blue}{\sqrt{x \cdot 9}} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      6. *-commutative99.3%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      7. metadata-eval99.3%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      8. sqrt-prod99.9%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\sqrt{x \cdot 9}} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      9. +-commutative99.9%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \color{blue}{\left(-1 + \frac{0.1111111111111111}{x}\right)} \]
    5. Applied egg-rr99.9%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \left(-1 + \frac{0.1111111111111111}{x}\right)} \]
    6. Step-by-step derivation
      1. distribute-lft-out99.9%

        \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y + \left(-1 + \frac{0.1111111111111111}{x}\right)\right)} \]
      2. associate-+r+99.9%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(\left(y + -1\right) + \frac{0.1111111111111111}{x}\right)} \]
      3. metadata-eval99.9%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\left(y + \color{blue}{\left(-1\right)}\right) + \frac{0.1111111111111111}{x}\right) \]
      4. sub-neg99.9%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\color{blue}{\left(y - 1\right)} + \frac{0.1111111111111111}{x}\right) \]
      5. associate-+l-99.9%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
    7. Simplified99.9%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
    8. Taylor expanded in x around inf 99.9%

      \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(y - 1\right)} \]
    9. Taylor expanded in y around 0 67.7%

      \[\leadsto \color{blue}{-3 \cdot \sqrt{x}} \]
    10. Step-by-step derivation
      1. *-commutative67.7%

        \[\leadsto \color{blue}{\sqrt{x} \cdot -3} \]
    11. Simplified67.7%

      \[\leadsto \color{blue}{\sqrt{x} \cdot -3} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification71.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq 2 \cdot 10^{-42}:\\ \;\;\;\;0.3333333333333333 \cdot \frac{\sqrt{x}}{x}\\ \mathbf{elif}\;x \leq 7 \cdot 10^{-24}:\\ \;\;\;\;3 \cdot \left(y \cdot \sqrt{x}\right)\\ \mathbf{elif}\;x \leq 2 \cdot 10^{-10}:\\ \;\;\;\;0.3333333333333333 \cdot \frac{\sqrt{x}}{x}\\ \mathbf{elif}\;x \leq 4.5 \cdot 10^{+259}:\\ \;\;\;\;3 \cdot \left(y \cdot \sqrt{x}\right)\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot -3\\ \end{array} \]

Alternative 4: 62.8% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := 0.3333333333333333 \cdot \frac{\sqrt{x}}{x}\\ \mathbf{if}\;x \leq 4.2 \cdot 10^{-42}:\\ \;\;\;\;t_0\\ \mathbf{elif}\;x \leq 7.5 \cdot 10^{-24}:\\ \;\;\;\;3 \cdot \left(y \cdot \sqrt{x}\right)\\ \mathbf{elif}\;x \leq 1.9 \cdot 10^{-10}:\\ \;\;\;\;t_0\\ \mathbf{elif}\;x \leq 1.35 \cdot 10^{+259}:\\ \;\;\;\;\sqrt{x} \cdot \left(y \cdot 3\right)\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot -3\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (let* ((t_0 (* 0.3333333333333333 (/ (sqrt x) x))))
   (if (<= x 4.2e-42)
     t_0
     (if (<= x 7.5e-24)
       (* 3.0 (* y (sqrt x)))
       (if (<= x 1.9e-10)
         t_0
         (if (<= x 1.35e+259) (* (sqrt x) (* y 3.0)) (* (sqrt x) -3.0)))))))
double code(double x, double y) {
	double t_0 = 0.3333333333333333 * (sqrt(x) / x);
	double tmp;
	if (x <= 4.2e-42) {
		tmp = t_0;
	} else if (x <= 7.5e-24) {
		tmp = 3.0 * (y * sqrt(x));
	} else if (x <= 1.9e-10) {
		tmp = t_0;
	} else if (x <= 1.35e+259) {
		tmp = sqrt(x) * (y * 3.0);
	} else {
		tmp = sqrt(x) * -3.0;
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: t_0
    real(8) :: tmp
    t_0 = 0.3333333333333333d0 * (sqrt(x) / x)
    if (x <= 4.2d-42) then
        tmp = t_0
    else if (x <= 7.5d-24) then
        tmp = 3.0d0 * (y * sqrt(x))
    else if (x <= 1.9d-10) then
        tmp = t_0
    else if (x <= 1.35d+259) then
        tmp = sqrt(x) * (y * 3.0d0)
    else
        tmp = sqrt(x) * (-3.0d0)
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double t_0 = 0.3333333333333333 * (Math.sqrt(x) / x);
	double tmp;
	if (x <= 4.2e-42) {
		tmp = t_0;
	} else if (x <= 7.5e-24) {
		tmp = 3.0 * (y * Math.sqrt(x));
	} else if (x <= 1.9e-10) {
		tmp = t_0;
	} else if (x <= 1.35e+259) {
		tmp = Math.sqrt(x) * (y * 3.0);
	} else {
		tmp = Math.sqrt(x) * -3.0;
	}
	return tmp;
}
def code(x, y):
	t_0 = 0.3333333333333333 * (math.sqrt(x) / x)
	tmp = 0
	if x <= 4.2e-42:
		tmp = t_0
	elif x <= 7.5e-24:
		tmp = 3.0 * (y * math.sqrt(x))
	elif x <= 1.9e-10:
		tmp = t_0
	elif x <= 1.35e+259:
		tmp = math.sqrt(x) * (y * 3.0)
	else:
		tmp = math.sqrt(x) * -3.0
	return tmp
function code(x, y)
	t_0 = Float64(0.3333333333333333 * Float64(sqrt(x) / x))
	tmp = 0.0
	if (x <= 4.2e-42)
		tmp = t_0;
	elseif (x <= 7.5e-24)
		tmp = Float64(3.0 * Float64(y * sqrt(x)));
	elseif (x <= 1.9e-10)
		tmp = t_0;
	elseif (x <= 1.35e+259)
		tmp = Float64(sqrt(x) * Float64(y * 3.0));
	else
		tmp = Float64(sqrt(x) * -3.0);
	end
	return tmp
end
function tmp_2 = code(x, y)
	t_0 = 0.3333333333333333 * (sqrt(x) / x);
	tmp = 0.0;
	if (x <= 4.2e-42)
		tmp = t_0;
	elseif (x <= 7.5e-24)
		tmp = 3.0 * (y * sqrt(x));
	elseif (x <= 1.9e-10)
		tmp = t_0;
	elseif (x <= 1.35e+259)
		tmp = sqrt(x) * (y * 3.0);
	else
		tmp = sqrt(x) * -3.0;
	end
	tmp_2 = tmp;
end
code[x_, y_] := Block[{t$95$0 = N[(0.3333333333333333 * N[(N[Sqrt[x], $MachinePrecision] / x), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[x, 4.2e-42], t$95$0, If[LessEqual[x, 7.5e-24], N[(3.0 * N[(y * N[Sqrt[x], $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 1.9e-10], t$95$0, If[LessEqual[x, 1.35e+259], N[(N[Sqrt[x], $MachinePrecision] * N[(y * 3.0), $MachinePrecision]), $MachinePrecision], N[(N[Sqrt[x], $MachinePrecision] * -3.0), $MachinePrecision]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := 0.3333333333333333 \cdot \frac{\sqrt{x}}{x}\\
\mathbf{if}\;x \leq 4.2 \cdot 10^{-42}:\\
\;\;\;\;t_0\\

\mathbf{elif}\;x \leq 7.5 \cdot 10^{-24}:\\
\;\;\;\;3 \cdot \left(y \cdot \sqrt{x}\right)\\

\mathbf{elif}\;x \leq 1.9 \cdot 10^{-10}:\\
\;\;\;\;t_0\\

\mathbf{elif}\;x \leq 1.35 \cdot 10^{+259}:\\
\;\;\;\;\sqrt{x} \cdot \left(y \cdot 3\right)\\

\mathbf{else}:\\
\;\;\;\;\sqrt{x} \cdot -3\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if x < 4.20000000000000013e-42 or 7.50000000000000007e-24 < x < 1.8999999999999999e-10

    1. Initial program 99.2%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. associate-*l*99.2%

        \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      2. associate--l+99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      3. sub-neg99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right)\right) \]
      4. *-commutative99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{1}{\color{blue}{9 \cdot x}} + \left(-1\right)\right)\right)\right) \]
      5. associate-/r*99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\color{blue}{\frac{\frac{1}{9}}{x}} + \left(-1\right)\right)\right)\right) \]
      6. metadata-eval99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right)\right) \]
      7. metadata-eval99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right)\right) \]
    3. Simplified99.1%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)\right)} \]
    4. Taylor expanded in x around 0 80.2%

      \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\frac{0.1111111111111111}{x}}\right) \]
    5. Step-by-step derivation
      1. associate-*r*80.3%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \frac{0.1111111111111111}{x}} \]
      2. clear-num80.3%

        \[\leadsto \left(3 \cdot \sqrt{x}\right) \cdot \color{blue}{\frac{1}{\frac{x}{0.1111111111111111}}} \]
      3. un-div-inv80.3%

        \[\leadsto \color{blue}{\frac{3 \cdot \sqrt{x}}{\frac{x}{0.1111111111111111}}} \]
      4. div-inv80.4%

        \[\leadsto \frac{3 \cdot \sqrt{x}}{\color{blue}{x \cdot \frac{1}{0.1111111111111111}}} \]
      5. metadata-eval80.4%

        \[\leadsto \frac{3 \cdot \sqrt{x}}{x \cdot \color{blue}{9}} \]
    6. Applied egg-rr80.4%

      \[\leadsto \color{blue}{\frac{3 \cdot \sqrt{x}}{x \cdot 9}} \]
    7. Step-by-step derivation
      1. *-commutative80.4%

        \[\leadsto \frac{3 \cdot \sqrt{x}}{\color{blue}{9 \cdot x}} \]
      2. times-frac80.3%

        \[\leadsto \color{blue}{\frac{3}{9} \cdot \frac{\sqrt{x}}{x}} \]
      3. metadata-eval80.3%

        \[\leadsto \color{blue}{0.3333333333333333} \cdot \frac{\sqrt{x}}{x} \]
    8. Simplified80.3%

      \[\leadsto \color{blue}{0.3333333333333333 \cdot \frac{\sqrt{x}}{x}} \]

    if 4.20000000000000013e-42 < x < 7.50000000000000007e-24

    1. Initial program 99.1%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. *-commutative99.1%

        \[\leadsto \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
      2. associate-*l*98.8%

        \[\leadsto \color{blue}{\sqrt{x} \cdot \left(3 \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      3. associate--l+98.8%

        \[\leadsto \sqrt{x} \cdot \left(3 \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      4. distribute-lft-in98.8%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\left(3 \cdot y + 3 \cdot \left(\frac{1}{x \cdot 9} - 1\right)\right)} \]
      5. fma-def98.8%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\mathsf{fma}\left(3, y, 3 \cdot \left(\frac{1}{x \cdot 9} - 1\right)\right)} \]
      6. sub-neg98.8%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right) \]
      7. +-commutative98.8%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{\left(\left(-1\right) + \frac{1}{x \cdot 9}\right)}\right) \]
      8. distribute-lft-in98.8%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, \color{blue}{3 \cdot \left(-1\right) + 3 \cdot \frac{1}{x \cdot 9}}\right) \]
      9. metadata-eval98.8%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{-1} + 3 \cdot \frac{1}{x \cdot 9}\right) \]
      10. metadata-eval98.8%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, \color{blue}{-3} + 3 \cdot \frac{1}{x \cdot 9}\right) \]
      11. *-commutative98.8%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + 3 \cdot \frac{1}{\color{blue}{9 \cdot x}}\right) \]
      12. associate-/r*99.0%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + 3 \cdot \color{blue}{\frac{\frac{1}{9}}{x}}\right) \]
      13. associate-*r/99.0%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \color{blue}{\frac{3 \cdot \frac{1}{9}}{x}}\right) \]
      14. metadata-eval99.0%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{3 \cdot \color{blue}{0.1111111111111111}}{x}\right) \]
      15. metadata-eval99.0%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{\color{blue}{0.3333333333333333}}{x}\right) \]
    3. Simplified99.0%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{0.3333333333333333}{x}\right)} \]
    4. Taylor expanded in y around inf 77.7%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot y\right)} \]

    if 1.8999999999999999e-10 < x < 1.34999999999999994e259

    1. Initial program 99.4%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. *-commutative99.4%

        \[\leadsto \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
      2. associate-*l*99.4%

        \[\leadsto \color{blue}{\sqrt{x} \cdot \left(3 \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      3. associate--l+99.4%

        \[\leadsto \sqrt{x} \cdot \left(3 \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      4. distribute-lft-in99.5%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\left(3 \cdot y + 3 \cdot \left(\frac{1}{x \cdot 9} - 1\right)\right)} \]
      5. fma-def99.5%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\mathsf{fma}\left(3, y, 3 \cdot \left(\frac{1}{x \cdot 9} - 1\right)\right)} \]
      6. sub-neg99.5%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right) \]
      7. +-commutative99.5%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{\left(\left(-1\right) + \frac{1}{x \cdot 9}\right)}\right) \]
      8. distribute-lft-in99.5%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, \color{blue}{3 \cdot \left(-1\right) + 3 \cdot \frac{1}{x \cdot 9}}\right) \]
      9. metadata-eval99.5%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{-1} + 3 \cdot \frac{1}{x \cdot 9}\right) \]
      10. metadata-eval99.5%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, \color{blue}{-3} + 3 \cdot \frac{1}{x \cdot 9}\right) \]
      11. *-commutative99.5%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + 3 \cdot \frac{1}{\color{blue}{9 \cdot x}}\right) \]
      12. associate-/r*99.5%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + 3 \cdot \color{blue}{\frac{\frac{1}{9}}{x}}\right) \]
      13. associate-*r/99.5%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \color{blue}{\frac{3 \cdot \frac{1}{9}}{x}}\right) \]
      14. metadata-eval99.5%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{3 \cdot \color{blue}{0.1111111111111111}}{x}\right) \]
      15. metadata-eval99.5%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{\color{blue}{0.3333333333333333}}{x}\right) \]
    3. Simplified99.5%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{0.3333333333333333}{x}\right)} \]
    4. Taylor expanded in y around inf 59.9%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot y\right)} \]
    5. Step-by-step derivation
      1. *-commutative59.9%

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

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

        \[\leadsto \sqrt{x} \cdot \color{blue}{\left(3 \cdot y\right)} \]
    6. Simplified60.0%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(3 \cdot y\right)} \]

    if 1.34999999999999994e259 < x

    1. Initial program 99.2%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. associate-*l*99.3%

        \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      2. associate--l+99.3%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      3. sub-neg99.3%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right)\right) \]
      4. *-commutative99.3%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{1}{\color{blue}{9 \cdot x}} + \left(-1\right)\right)\right)\right) \]
      5. associate-/r*99.3%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\color{blue}{\frac{\frac{1}{9}}{x}} + \left(-1\right)\right)\right)\right) \]
      6. metadata-eval99.3%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right)\right) \]
      7. metadata-eval99.3%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right)\right) \]
    3. Simplified99.3%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)\right)} \]
    4. Step-by-step derivation
      1. associate-*r*99.2%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)} \]
      2. distribute-lft-in99.2%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right)} \]
      3. *-commutative99.2%

        \[\leadsto \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      4. metadata-eval99.2%

        \[\leadsto \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      5. sqrt-prod99.3%

        \[\leadsto \color{blue}{\sqrt{x \cdot 9}} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      6. *-commutative99.3%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      7. metadata-eval99.3%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      8. sqrt-prod99.9%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\sqrt{x \cdot 9}} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      9. +-commutative99.9%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \color{blue}{\left(-1 + \frac{0.1111111111111111}{x}\right)} \]
    5. Applied egg-rr99.9%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \left(-1 + \frac{0.1111111111111111}{x}\right)} \]
    6. Step-by-step derivation
      1. distribute-lft-out99.9%

        \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y + \left(-1 + \frac{0.1111111111111111}{x}\right)\right)} \]
      2. associate-+r+99.9%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(\left(y + -1\right) + \frac{0.1111111111111111}{x}\right)} \]
      3. metadata-eval99.9%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\left(y + \color{blue}{\left(-1\right)}\right) + \frac{0.1111111111111111}{x}\right) \]
      4. sub-neg99.9%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\color{blue}{\left(y - 1\right)} + \frac{0.1111111111111111}{x}\right) \]
      5. associate-+l-99.9%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
    7. Simplified99.9%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
    8. Taylor expanded in x around inf 99.9%

      \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(y - 1\right)} \]
    9. Taylor expanded in y around 0 67.7%

      \[\leadsto \color{blue}{-3 \cdot \sqrt{x}} \]
    10. Step-by-step derivation
      1. *-commutative67.7%

        \[\leadsto \color{blue}{\sqrt{x} \cdot -3} \]
    11. Simplified67.7%

      \[\leadsto \color{blue}{\sqrt{x} \cdot -3} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification71.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq 4.2 \cdot 10^{-42}:\\ \;\;\;\;0.3333333333333333 \cdot \frac{\sqrt{x}}{x}\\ \mathbf{elif}\;x \leq 7.5 \cdot 10^{-24}:\\ \;\;\;\;3 \cdot \left(y \cdot \sqrt{x}\right)\\ \mathbf{elif}\;x \leq 1.9 \cdot 10^{-10}:\\ \;\;\;\;0.3333333333333333 \cdot \frac{\sqrt{x}}{x}\\ \mathbf{elif}\;x \leq 1.35 \cdot 10^{+259}:\\ \;\;\;\;\sqrt{x} \cdot \left(y \cdot 3\right)\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot -3\\ \end{array} \]

Alternative 5: 62.7% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := \sqrt{x} \cdot \frac{0.3333333333333333}{x}\\ \mathbf{if}\;x \leq 1.55 \cdot 10^{-43}:\\ \;\;\;\;t_0\\ \mathbf{elif}\;x \leq 6.8 \cdot 10^{-24}:\\ \;\;\;\;3 \cdot \left(y \cdot \sqrt{x}\right)\\ \mathbf{elif}\;x \leq 2.5 \cdot 10^{-10}:\\ \;\;\;\;t_0\\ \mathbf{elif}\;x \leq 3 \cdot 10^{+259}:\\ \;\;\;\;\sqrt{x} \cdot \left(y \cdot 3\right)\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot -3\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (let* ((t_0 (* (sqrt x) (/ 0.3333333333333333 x))))
   (if (<= x 1.55e-43)
     t_0
     (if (<= x 6.8e-24)
       (* 3.0 (* y (sqrt x)))
       (if (<= x 2.5e-10)
         t_0
         (if (<= x 3e+259) (* (sqrt x) (* y 3.0)) (* (sqrt x) -3.0)))))))
double code(double x, double y) {
	double t_0 = sqrt(x) * (0.3333333333333333 / x);
	double tmp;
	if (x <= 1.55e-43) {
		tmp = t_0;
	} else if (x <= 6.8e-24) {
		tmp = 3.0 * (y * sqrt(x));
	} else if (x <= 2.5e-10) {
		tmp = t_0;
	} else if (x <= 3e+259) {
		tmp = sqrt(x) * (y * 3.0);
	} else {
		tmp = sqrt(x) * -3.0;
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: t_0
    real(8) :: tmp
    t_0 = sqrt(x) * (0.3333333333333333d0 / x)
    if (x <= 1.55d-43) then
        tmp = t_0
    else if (x <= 6.8d-24) then
        tmp = 3.0d0 * (y * sqrt(x))
    else if (x <= 2.5d-10) then
        tmp = t_0
    else if (x <= 3d+259) then
        tmp = sqrt(x) * (y * 3.0d0)
    else
        tmp = sqrt(x) * (-3.0d0)
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double t_0 = Math.sqrt(x) * (0.3333333333333333 / x);
	double tmp;
	if (x <= 1.55e-43) {
		tmp = t_0;
	} else if (x <= 6.8e-24) {
		tmp = 3.0 * (y * Math.sqrt(x));
	} else if (x <= 2.5e-10) {
		tmp = t_0;
	} else if (x <= 3e+259) {
		tmp = Math.sqrt(x) * (y * 3.0);
	} else {
		tmp = Math.sqrt(x) * -3.0;
	}
	return tmp;
}
def code(x, y):
	t_0 = math.sqrt(x) * (0.3333333333333333 / x)
	tmp = 0
	if x <= 1.55e-43:
		tmp = t_0
	elif x <= 6.8e-24:
		tmp = 3.0 * (y * math.sqrt(x))
	elif x <= 2.5e-10:
		tmp = t_0
	elif x <= 3e+259:
		tmp = math.sqrt(x) * (y * 3.0)
	else:
		tmp = math.sqrt(x) * -3.0
	return tmp
function code(x, y)
	t_0 = Float64(sqrt(x) * Float64(0.3333333333333333 / x))
	tmp = 0.0
	if (x <= 1.55e-43)
		tmp = t_0;
	elseif (x <= 6.8e-24)
		tmp = Float64(3.0 * Float64(y * sqrt(x)));
	elseif (x <= 2.5e-10)
		tmp = t_0;
	elseif (x <= 3e+259)
		tmp = Float64(sqrt(x) * Float64(y * 3.0));
	else
		tmp = Float64(sqrt(x) * -3.0);
	end
	return tmp
end
function tmp_2 = code(x, y)
	t_0 = sqrt(x) * (0.3333333333333333 / x);
	tmp = 0.0;
	if (x <= 1.55e-43)
		tmp = t_0;
	elseif (x <= 6.8e-24)
		tmp = 3.0 * (y * sqrt(x));
	elseif (x <= 2.5e-10)
		tmp = t_0;
	elseif (x <= 3e+259)
		tmp = sqrt(x) * (y * 3.0);
	else
		tmp = sqrt(x) * -3.0;
	end
	tmp_2 = tmp;
end
code[x_, y_] := Block[{t$95$0 = N[(N[Sqrt[x], $MachinePrecision] * N[(0.3333333333333333 / x), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[x, 1.55e-43], t$95$0, If[LessEqual[x, 6.8e-24], N[(3.0 * N[(y * N[Sqrt[x], $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 2.5e-10], t$95$0, If[LessEqual[x, 3e+259], N[(N[Sqrt[x], $MachinePrecision] * N[(y * 3.0), $MachinePrecision]), $MachinePrecision], N[(N[Sqrt[x], $MachinePrecision] * -3.0), $MachinePrecision]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := \sqrt{x} \cdot \frac{0.3333333333333333}{x}\\
\mathbf{if}\;x \leq 1.55 \cdot 10^{-43}:\\
\;\;\;\;t_0\\

\mathbf{elif}\;x \leq 6.8 \cdot 10^{-24}:\\
\;\;\;\;3 \cdot \left(y \cdot \sqrt{x}\right)\\

\mathbf{elif}\;x \leq 2.5 \cdot 10^{-10}:\\
\;\;\;\;t_0\\

\mathbf{elif}\;x \leq 3 \cdot 10^{+259}:\\
\;\;\;\;\sqrt{x} \cdot \left(y \cdot 3\right)\\

\mathbf{else}:\\
\;\;\;\;\sqrt{x} \cdot -3\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if x < 1.55e-43 or 6.79999999999999985e-24 < x < 2.50000000000000016e-10

    1. Initial program 99.2%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. *-commutative99.2%

        \[\leadsto \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
      2. associate-*l*99.2%

        \[\leadsto \color{blue}{\sqrt{x} \cdot \left(3 \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      3. associate--l+99.2%

        \[\leadsto \sqrt{x} \cdot \left(3 \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      4. distribute-lft-in99.2%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\left(3 \cdot y + 3 \cdot \left(\frac{1}{x \cdot 9} - 1\right)\right)} \]
      5. fma-def99.2%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\mathsf{fma}\left(3, y, 3 \cdot \left(\frac{1}{x \cdot 9} - 1\right)\right)} \]
      6. sub-neg99.2%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right) \]
      7. +-commutative99.2%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{\left(\left(-1\right) + \frac{1}{x \cdot 9}\right)}\right) \]
      8. distribute-lft-in99.2%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, \color{blue}{3 \cdot \left(-1\right) + 3 \cdot \frac{1}{x \cdot 9}}\right) \]
      9. metadata-eval99.2%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{-1} + 3 \cdot \frac{1}{x \cdot 9}\right) \]
      10. metadata-eval99.2%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, \color{blue}{-3} + 3 \cdot \frac{1}{x \cdot 9}\right) \]
      11. *-commutative99.2%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + 3 \cdot \frac{1}{\color{blue}{9 \cdot x}}\right) \]
      12. associate-/r*99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + 3 \cdot \color{blue}{\frac{\frac{1}{9}}{x}}\right) \]
      13. associate-*r/99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \color{blue}{\frac{3 \cdot \frac{1}{9}}{x}}\right) \]
      14. metadata-eval99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{3 \cdot \color{blue}{0.1111111111111111}}{x}\right) \]
      15. metadata-eval99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{\color{blue}{0.3333333333333333}}{x}\right) \]
    3. Simplified99.3%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{0.3333333333333333}{x}\right)} \]
    4. Taylor expanded in x around 0 80.3%

      \[\leadsto \sqrt{x} \cdot \color{blue}{\frac{0.3333333333333333}{x}} \]

    if 1.55e-43 < x < 6.79999999999999985e-24

    1. Initial program 99.1%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. *-commutative99.1%

        \[\leadsto \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
      2. associate-*l*98.8%

        \[\leadsto \color{blue}{\sqrt{x} \cdot \left(3 \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      3. associate--l+98.8%

        \[\leadsto \sqrt{x} \cdot \left(3 \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      4. distribute-lft-in98.8%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\left(3 \cdot y + 3 \cdot \left(\frac{1}{x \cdot 9} - 1\right)\right)} \]
      5. fma-def98.8%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\mathsf{fma}\left(3, y, 3 \cdot \left(\frac{1}{x \cdot 9} - 1\right)\right)} \]
      6. sub-neg98.8%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right) \]
      7. +-commutative98.8%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{\left(\left(-1\right) + \frac{1}{x \cdot 9}\right)}\right) \]
      8. distribute-lft-in98.8%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, \color{blue}{3 \cdot \left(-1\right) + 3 \cdot \frac{1}{x \cdot 9}}\right) \]
      9. metadata-eval98.8%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{-1} + 3 \cdot \frac{1}{x \cdot 9}\right) \]
      10. metadata-eval98.8%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, \color{blue}{-3} + 3 \cdot \frac{1}{x \cdot 9}\right) \]
      11. *-commutative98.8%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + 3 \cdot \frac{1}{\color{blue}{9 \cdot x}}\right) \]
      12. associate-/r*99.0%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + 3 \cdot \color{blue}{\frac{\frac{1}{9}}{x}}\right) \]
      13. associate-*r/99.0%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \color{blue}{\frac{3 \cdot \frac{1}{9}}{x}}\right) \]
      14. metadata-eval99.0%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{3 \cdot \color{blue}{0.1111111111111111}}{x}\right) \]
      15. metadata-eval99.0%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{\color{blue}{0.3333333333333333}}{x}\right) \]
    3. Simplified99.0%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{0.3333333333333333}{x}\right)} \]
    4. Taylor expanded in y around inf 77.7%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot y\right)} \]

    if 2.50000000000000016e-10 < x < 3.00000000000000013e259

    1. Initial program 99.4%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. *-commutative99.4%

        \[\leadsto \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
      2. associate-*l*99.4%

        \[\leadsto \color{blue}{\sqrt{x} \cdot \left(3 \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      3. associate--l+99.4%

        \[\leadsto \sqrt{x} \cdot \left(3 \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      4. distribute-lft-in99.5%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\left(3 \cdot y + 3 \cdot \left(\frac{1}{x \cdot 9} - 1\right)\right)} \]
      5. fma-def99.5%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\mathsf{fma}\left(3, y, 3 \cdot \left(\frac{1}{x \cdot 9} - 1\right)\right)} \]
      6. sub-neg99.5%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right) \]
      7. +-commutative99.5%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{\left(\left(-1\right) + \frac{1}{x \cdot 9}\right)}\right) \]
      8. distribute-lft-in99.5%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, \color{blue}{3 \cdot \left(-1\right) + 3 \cdot \frac{1}{x \cdot 9}}\right) \]
      9. metadata-eval99.5%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{-1} + 3 \cdot \frac{1}{x \cdot 9}\right) \]
      10. metadata-eval99.5%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, \color{blue}{-3} + 3 \cdot \frac{1}{x \cdot 9}\right) \]
      11. *-commutative99.5%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + 3 \cdot \frac{1}{\color{blue}{9 \cdot x}}\right) \]
      12. associate-/r*99.5%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + 3 \cdot \color{blue}{\frac{\frac{1}{9}}{x}}\right) \]
      13. associate-*r/99.5%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \color{blue}{\frac{3 \cdot \frac{1}{9}}{x}}\right) \]
      14. metadata-eval99.5%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{3 \cdot \color{blue}{0.1111111111111111}}{x}\right) \]
      15. metadata-eval99.5%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{\color{blue}{0.3333333333333333}}{x}\right) \]
    3. Simplified99.5%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{0.3333333333333333}{x}\right)} \]
    4. Taylor expanded in y around inf 59.9%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot y\right)} \]
    5. Step-by-step derivation
      1. *-commutative59.9%

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

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

        \[\leadsto \sqrt{x} \cdot \color{blue}{\left(3 \cdot y\right)} \]
    6. Simplified60.0%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(3 \cdot y\right)} \]

    if 3.00000000000000013e259 < x

    1. Initial program 99.2%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. associate-*l*99.3%

        \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      2. associate--l+99.3%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      3. sub-neg99.3%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right)\right) \]
      4. *-commutative99.3%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{1}{\color{blue}{9 \cdot x}} + \left(-1\right)\right)\right)\right) \]
      5. associate-/r*99.3%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\color{blue}{\frac{\frac{1}{9}}{x}} + \left(-1\right)\right)\right)\right) \]
      6. metadata-eval99.3%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right)\right) \]
      7. metadata-eval99.3%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right)\right) \]
    3. Simplified99.3%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)\right)} \]
    4. Step-by-step derivation
      1. associate-*r*99.2%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)} \]
      2. distribute-lft-in99.2%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right)} \]
      3. *-commutative99.2%

        \[\leadsto \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      4. metadata-eval99.2%

        \[\leadsto \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      5. sqrt-prod99.3%

        \[\leadsto \color{blue}{\sqrt{x \cdot 9}} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      6. *-commutative99.3%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      7. metadata-eval99.3%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      8. sqrt-prod99.9%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\sqrt{x \cdot 9}} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      9. +-commutative99.9%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \color{blue}{\left(-1 + \frac{0.1111111111111111}{x}\right)} \]
    5. Applied egg-rr99.9%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \left(-1 + \frac{0.1111111111111111}{x}\right)} \]
    6. Step-by-step derivation
      1. distribute-lft-out99.9%

        \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y + \left(-1 + \frac{0.1111111111111111}{x}\right)\right)} \]
      2. associate-+r+99.9%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(\left(y + -1\right) + \frac{0.1111111111111111}{x}\right)} \]
      3. metadata-eval99.9%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\left(y + \color{blue}{\left(-1\right)}\right) + \frac{0.1111111111111111}{x}\right) \]
      4. sub-neg99.9%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\color{blue}{\left(y - 1\right)} + \frac{0.1111111111111111}{x}\right) \]
      5. associate-+l-99.9%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
    7. Simplified99.9%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
    8. Taylor expanded in x around inf 99.9%

      \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(y - 1\right)} \]
    9. Taylor expanded in y around 0 67.7%

      \[\leadsto \color{blue}{-3 \cdot \sqrt{x}} \]
    10. Step-by-step derivation
      1. *-commutative67.7%

        \[\leadsto \color{blue}{\sqrt{x} \cdot -3} \]
    11. Simplified67.7%

      \[\leadsto \color{blue}{\sqrt{x} \cdot -3} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification71.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq 1.55 \cdot 10^{-43}:\\ \;\;\;\;\sqrt{x} \cdot \frac{0.3333333333333333}{x}\\ \mathbf{elif}\;x \leq 6.8 \cdot 10^{-24}:\\ \;\;\;\;3 \cdot \left(y \cdot \sqrt{x}\right)\\ \mathbf{elif}\;x \leq 2.5 \cdot 10^{-10}:\\ \;\;\;\;\sqrt{x} \cdot \frac{0.3333333333333333}{x}\\ \mathbf{elif}\;x \leq 3 \cdot 10^{+259}:\\ \;\;\;\;\sqrt{x} \cdot \left(y \cdot 3\right)\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot -3\\ \end{array} \]

Alternative 6: 62.7% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := \sqrt{x} \cdot \frac{0.3333333333333333}{x}\\ \mathbf{if}\;x \leq 3.3 \cdot 10^{-43}:\\ \;\;\;\;t_0\\ \mathbf{elif}\;x \leq 4 \cdot 10^{-24}:\\ \;\;\;\;\sqrt{x \cdot 9} \cdot y\\ \mathbf{elif}\;x \leq 2 \cdot 10^{-10}:\\ \;\;\;\;t_0\\ \mathbf{elif}\;x \leq 3.4 \cdot 10^{+259}:\\ \;\;\;\;\sqrt{x} \cdot \left(y \cdot 3\right)\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot -3\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (let* ((t_0 (* (sqrt x) (/ 0.3333333333333333 x))))
   (if (<= x 3.3e-43)
     t_0
     (if (<= x 4e-24)
       (* (sqrt (* x 9.0)) y)
       (if (<= x 2e-10)
         t_0
         (if (<= x 3.4e+259) (* (sqrt x) (* y 3.0)) (* (sqrt x) -3.0)))))))
double code(double x, double y) {
	double t_0 = sqrt(x) * (0.3333333333333333 / x);
	double tmp;
	if (x <= 3.3e-43) {
		tmp = t_0;
	} else if (x <= 4e-24) {
		tmp = sqrt((x * 9.0)) * y;
	} else if (x <= 2e-10) {
		tmp = t_0;
	} else if (x <= 3.4e+259) {
		tmp = sqrt(x) * (y * 3.0);
	} else {
		tmp = sqrt(x) * -3.0;
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: t_0
    real(8) :: tmp
    t_0 = sqrt(x) * (0.3333333333333333d0 / x)
    if (x <= 3.3d-43) then
        tmp = t_0
    else if (x <= 4d-24) then
        tmp = sqrt((x * 9.0d0)) * y
    else if (x <= 2d-10) then
        tmp = t_0
    else if (x <= 3.4d+259) then
        tmp = sqrt(x) * (y * 3.0d0)
    else
        tmp = sqrt(x) * (-3.0d0)
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double t_0 = Math.sqrt(x) * (0.3333333333333333 / x);
	double tmp;
	if (x <= 3.3e-43) {
		tmp = t_0;
	} else if (x <= 4e-24) {
		tmp = Math.sqrt((x * 9.0)) * y;
	} else if (x <= 2e-10) {
		tmp = t_0;
	} else if (x <= 3.4e+259) {
		tmp = Math.sqrt(x) * (y * 3.0);
	} else {
		tmp = Math.sqrt(x) * -3.0;
	}
	return tmp;
}
def code(x, y):
	t_0 = math.sqrt(x) * (0.3333333333333333 / x)
	tmp = 0
	if x <= 3.3e-43:
		tmp = t_0
	elif x <= 4e-24:
		tmp = math.sqrt((x * 9.0)) * y
	elif x <= 2e-10:
		tmp = t_0
	elif x <= 3.4e+259:
		tmp = math.sqrt(x) * (y * 3.0)
	else:
		tmp = math.sqrt(x) * -3.0
	return tmp
function code(x, y)
	t_0 = Float64(sqrt(x) * Float64(0.3333333333333333 / x))
	tmp = 0.0
	if (x <= 3.3e-43)
		tmp = t_0;
	elseif (x <= 4e-24)
		tmp = Float64(sqrt(Float64(x * 9.0)) * y);
	elseif (x <= 2e-10)
		tmp = t_0;
	elseif (x <= 3.4e+259)
		tmp = Float64(sqrt(x) * Float64(y * 3.0));
	else
		tmp = Float64(sqrt(x) * -3.0);
	end
	return tmp
end
function tmp_2 = code(x, y)
	t_0 = sqrt(x) * (0.3333333333333333 / x);
	tmp = 0.0;
	if (x <= 3.3e-43)
		tmp = t_0;
	elseif (x <= 4e-24)
		tmp = sqrt((x * 9.0)) * y;
	elseif (x <= 2e-10)
		tmp = t_0;
	elseif (x <= 3.4e+259)
		tmp = sqrt(x) * (y * 3.0);
	else
		tmp = sqrt(x) * -3.0;
	end
	tmp_2 = tmp;
end
code[x_, y_] := Block[{t$95$0 = N[(N[Sqrt[x], $MachinePrecision] * N[(0.3333333333333333 / x), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[x, 3.3e-43], t$95$0, If[LessEqual[x, 4e-24], N[(N[Sqrt[N[(x * 9.0), $MachinePrecision]], $MachinePrecision] * y), $MachinePrecision], If[LessEqual[x, 2e-10], t$95$0, If[LessEqual[x, 3.4e+259], N[(N[Sqrt[x], $MachinePrecision] * N[(y * 3.0), $MachinePrecision]), $MachinePrecision], N[(N[Sqrt[x], $MachinePrecision] * -3.0), $MachinePrecision]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := \sqrt{x} \cdot \frac{0.3333333333333333}{x}\\
\mathbf{if}\;x \leq 3.3 \cdot 10^{-43}:\\
\;\;\;\;t_0\\

\mathbf{elif}\;x \leq 4 \cdot 10^{-24}:\\
\;\;\;\;\sqrt{x \cdot 9} \cdot y\\

\mathbf{elif}\;x \leq 2 \cdot 10^{-10}:\\
\;\;\;\;t_0\\

\mathbf{elif}\;x \leq 3.4 \cdot 10^{+259}:\\
\;\;\;\;\sqrt{x} \cdot \left(y \cdot 3\right)\\

\mathbf{else}:\\
\;\;\;\;\sqrt{x} \cdot -3\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if x < 3.30000000000000016e-43 or 3.99999999999999969e-24 < x < 2.00000000000000007e-10

    1. Initial program 99.2%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. *-commutative99.2%

        \[\leadsto \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
      2. associate-*l*99.2%

        \[\leadsto \color{blue}{\sqrt{x} \cdot \left(3 \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      3. associate--l+99.2%

        \[\leadsto \sqrt{x} \cdot \left(3 \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      4. distribute-lft-in99.2%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\left(3 \cdot y + 3 \cdot \left(\frac{1}{x \cdot 9} - 1\right)\right)} \]
      5. fma-def99.2%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\mathsf{fma}\left(3, y, 3 \cdot \left(\frac{1}{x \cdot 9} - 1\right)\right)} \]
      6. sub-neg99.2%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right) \]
      7. +-commutative99.2%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{\left(\left(-1\right) + \frac{1}{x \cdot 9}\right)}\right) \]
      8. distribute-lft-in99.2%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, \color{blue}{3 \cdot \left(-1\right) + 3 \cdot \frac{1}{x \cdot 9}}\right) \]
      9. metadata-eval99.2%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{-1} + 3 \cdot \frac{1}{x \cdot 9}\right) \]
      10. metadata-eval99.2%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, \color{blue}{-3} + 3 \cdot \frac{1}{x \cdot 9}\right) \]
      11. *-commutative99.2%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + 3 \cdot \frac{1}{\color{blue}{9 \cdot x}}\right) \]
      12. associate-/r*99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + 3 \cdot \color{blue}{\frac{\frac{1}{9}}{x}}\right) \]
      13. associate-*r/99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \color{blue}{\frac{3 \cdot \frac{1}{9}}{x}}\right) \]
      14. metadata-eval99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{3 \cdot \color{blue}{0.1111111111111111}}{x}\right) \]
      15. metadata-eval99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{\color{blue}{0.3333333333333333}}{x}\right) \]
    3. Simplified99.3%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{0.3333333333333333}{x}\right)} \]
    4. Taylor expanded in x around 0 80.3%

      \[\leadsto \sqrt{x} \cdot \color{blue}{\frac{0.3333333333333333}{x}} \]

    if 3.30000000000000016e-43 < x < 3.99999999999999969e-24

    1. Initial program 99.1%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. associate-*l*99.1%

        \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      2. associate--l+99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      3. sub-neg99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right)\right) \]
      4. *-commutative99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{1}{\color{blue}{9 \cdot x}} + \left(-1\right)\right)\right)\right) \]
      5. associate-/r*99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\color{blue}{\frac{\frac{1}{9}}{x}} + \left(-1\right)\right)\right)\right) \]
      6. metadata-eval99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right)\right) \]
      7. metadata-eval99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right)\right) \]
    3. Simplified99.1%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)\right)} \]
    4. Step-by-step derivation
      1. associate-*r*99.3%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)} \]
      2. distribute-lft-in99.3%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right)} \]
      3. *-commutative99.3%

        \[\leadsto \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      4. metadata-eval99.3%

        \[\leadsto \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      5. sqrt-prod99.7%

        \[\leadsto \color{blue}{\sqrt{x \cdot 9}} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      6. *-commutative99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      7. metadata-eval99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      8. sqrt-prod99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\sqrt{x \cdot 9}} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      9. +-commutative99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \color{blue}{\left(-1 + \frac{0.1111111111111111}{x}\right)} \]
    5. Applied egg-rr99.7%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \left(-1 + \frac{0.1111111111111111}{x}\right)} \]
    6. Step-by-step derivation
      1. distribute-lft-out99.7%

        \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y + \left(-1 + \frac{0.1111111111111111}{x}\right)\right)} \]
      2. associate-+r+99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(\left(y + -1\right) + \frac{0.1111111111111111}{x}\right)} \]
      3. metadata-eval99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\left(y + \color{blue}{\left(-1\right)}\right) + \frac{0.1111111111111111}{x}\right) \]
      4. sub-neg99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\color{blue}{\left(y - 1\right)} + \frac{0.1111111111111111}{x}\right) \]
      5. associate-+l-99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
    7. Simplified99.7%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
    8. Taylor expanded in y around inf 78.3%

      \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{y} \]

    if 2.00000000000000007e-10 < x < 3.39999999999999989e259

    1. Initial program 99.4%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. *-commutative99.4%

        \[\leadsto \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
      2. associate-*l*99.4%

        \[\leadsto \color{blue}{\sqrt{x} \cdot \left(3 \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      3. associate--l+99.4%

        \[\leadsto \sqrt{x} \cdot \left(3 \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      4. distribute-lft-in99.5%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\left(3 \cdot y + 3 \cdot \left(\frac{1}{x \cdot 9} - 1\right)\right)} \]
      5. fma-def99.5%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\mathsf{fma}\left(3, y, 3 \cdot \left(\frac{1}{x \cdot 9} - 1\right)\right)} \]
      6. sub-neg99.5%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right) \]
      7. +-commutative99.5%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{\left(\left(-1\right) + \frac{1}{x \cdot 9}\right)}\right) \]
      8. distribute-lft-in99.5%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, \color{blue}{3 \cdot \left(-1\right) + 3 \cdot \frac{1}{x \cdot 9}}\right) \]
      9. metadata-eval99.5%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{-1} + 3 \cdot \frac{1}{x \cdot 9}\right) \]
      10. metadata-eval99.5%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, \color{blue}{-3} + 3 \cdot \frac{1}{x \cdot 9}\right) \]
      11. *-commutative99.5%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + 3 \cdot \frac{1}{\color{blue}{9 \cdot x}}\right) \]
      12. associate-/r*99.5%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + 3 \cdot \color{blue}{\frac{\frac{1}{9}}{x}}\right) \]
      13. associate-*r/99.5%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \color{blue}{\frac{3 \cdot \frac{1}{9}}{x}}\right) \]
      14. metadata-eval99.5%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{3 \cdot \color{blue}{0.1111111111111111}}{x}\right) \]
      15. metadata-eval99.5%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{\color{blue}{0.3333333333333333}}{x}\right) \]
    3. Simplified99.5%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{0.3333333333333333}{x}\right)} \]
    4. Taylor expanded in y around inf 59.9%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot y\right)} \]
    5. Step-by-step derivation
      1. *-commutative59.9%

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

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

        \[\leadsto \sqrt{x} \cdot \color{blue}{\left(3 \cdot y\right)} \]
    6. Simplified60.0%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(3 \cdot y\right)} \]

    if 3.39999999999999989e259 < x

    1. Initial program 99.2%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. associate-*l*99.3%

        \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      2. associate--l+99.3%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      3. sub-neg99.3%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right)\right) \]
      4. *-commutative99.3%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{1}{\color{blue}{9 \cdot x}} + \left(-1\right)\right)\right)\right) \]
      5. associate-/r*99.3%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\color{blue}{\frac{\frac{1}{9}}{x}} + \left(-1\right)\right)\right)\right) \]
      6. metadata-eval99.3%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right)\right) \]
      7. metadata-eval99.3%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right)\right) \]
    3. Simplified99.3%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)\right)} \]
    4. Step-by-step derivation
      1. associate-*r*99.2%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)} \]
      2. distribute-lft-in99.2%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right)} \]
      3. *-commutative99.2%

        \[\leadsto \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      4. metadata-eval99.2%

        \[\leadsto \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      5. sqrt-prod99.3%

        \[\leadsto \color{blue}{\sqrt{x \cdot 9}} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      6. *-commutative99.3%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      7. metadata-eval99.3%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      8. sqrt-prod99.9%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\sqrt{x \cdot 9}} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      9. +-commutative99.9%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \color{blue}{\left(-1 + \frac{0.1111111111111111}{x}\right)} \]
    5. Applied egg-rr99.9%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \left(-1 + \frac{0.1111111111111111}{x}\right)} \]
    6. Step-by-step derivation
      1. distribute-lft-out99.9%

        \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y + \left(-1 + \frac{0.1111111111111111}{x}\right)\right)} \]
      2. associate-+r+99.9%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(\left(y + -1\right) + \frac{0.1111111111111111}{x}\right)} \]
      3. metadata-eval99.9%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\left(y + \color{blue}{\left(-1\right)}\right) + \frac{0.1111111111111111}{x}\right) \]
      4. sub-neg99.9%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\color{blue}{\left(y - 1\right)} + \frac{0.1111111111111111}{x}\right) \]
      5. associate-+l-99.9%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
    7. Simplified99.9%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
    8. Taylor expanded in x around inf 99.9%

      \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(y - 1\right)} \]
    9. Taylor expanded in y around 0 67.7%

      \[\leadsto \color{blue}{-3 \cdot \sqrt{x}} \]
    10. Step-by-step derivation
      1. *-commutative67.7%

        \[\leadsto \color{blue}{\sqrt{x} \cdot -3} \]
    11. Simplified67.7%

      \[\leadsto \color{blue}{\sqrt{x} \cdot -3} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification71.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq 3.3 \cdot 10^{-43}:\\ \;\;\;\;\sqrt{x} \cdot \frac{0.3333333333333333}{x}\\ \mathbf{elif}\;x \leq 4 \cdot 10^{-24}:\\ \;\;\;\;\sqrt{x \cdot 9} \cdot y\\ \mathbf{elif}\;x \leq 2 \cdot 10^{-10}:\\ \;\;\;\;\sqrt{x} \cdot \frac{0.3333333333333333}{x}\\ \mathbf{elif}\;x \leq 3.4 \cdot 10^{+259}:\\ \;\;\;\;\sqrt{x} \cdot \left(y \cdot 3\right)\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot -3\\ \end{array} \]

Alternative 7: 85.7% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := \sqrt{x} \cdot \frac{0.3333333333333333}{x}\\ \mathbf{if}\;x \leq 7 \cdot 10^{-42}:\\ \;\;\;\;t_0\\ \mathbf{elif}\;x \leq 6.8 \cdot 10^{-24}:\\ \;\;\;\;\sqrt{x \cdot 9} \cdot y\\ \mathbf{elif}\;x \leq 1.9 \cdot 10^{-10}:\\ \;\;\;\;t_0\\ \mathbf{else}:\\ \;\;\;\;3 \cdot \left(\sqrt{x} \cdot \left(y + -1\right)\right)\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (let* ((t_0 (* (sqrt x) (/ 0.3333333333333333 x))))
   (if (<= x 7e-42)
     t_0
     (if (<= x 6.8e-24)
       (* (sqrt (* x 9.0)) y)
       (if (<= x 1.9e-10) t_0 (* 3.0 (* (sqrt x) (+ y -1.0))))))))
double code(double x, double y) {
	double t_0 = sqrt(x) * (0.3333333333333333 / x);
	double tmp;
	if (x <= 7e-42) {
		tmp = t_0;
	} else if (x <= 6.8e-24) {
		tmp = sqrt((x * 9.0)) * y;
	} else if (x <= 1.9e-10) {
		tmp = t_0;
	} else {
		tmp = 3.0 * (sqrt(x) * (y + -1.0));
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: t_0
    real(8) :: tmp
    t_0 = sqrt(x) * (0.3333333333333333d0 / x)
    if (x <= 7d-42) then
        tmp = t_0
    else if (x <= 6.8d-24) then
        tmp = sqrt((x * 9.0d0)) * y
    else if (x <= 1.9d-10) then
        tmp = t_0
    else
        tmp = 3.0d0 * (sqrt(x) * (y + (-1.0d0)))
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double t_0 = Math.sqrt(x) * (0.3333333333333333 / x);
	double tmp;
	if (x <= 7e-42) {
		tmp = t_0;
	} else if (x <= 6.8e-24) {
		tmp = Math.sqrt((x * 9.0)) * y;
	} else if (x <= 1.9e-10) {
		tmp = t_0;
	} else {
		tmp = 3.0 * (Math.sqrt(x) * (y + -1.0));
	}
	return tmp;
}
def code(x, y):
	t_0 = math.sqrt(x) * (0.3333333333333333 / x)
	tmp = 0
	if x <= 7e-42:
		tmp = t_0
	elif x <= 6.8e-24:
		tmp = math.sqrt((x * 9.0)) * y
	elif x <= 1.9e-10:
		tmp = t_0
	else:
		tmp = 3.0 * (math.sqrt(x) * (y + -1.0))
	return tmp
function code(x, y)
	t_0 = Float64(sqrt(x) * Float64(0.3333333333333333 / x))
	tmp = 0.0
	if (x <= 7e-42)
		tmp = t_0;
	elseif (x <= 6.8e-24)
		tmp = Float64(sqrt(Float64(x * 9.0)) * y);
	elseif (x <= 1.9e-10)
		tmp = t_0;
	else
		tmp = Float64(3.0 * Float64(sqrt(x) * Float64(y + -1.0)));
	end
	return tmp
end
function tmp_2 = code(x, y)
	t_0 = sqrt(x) * (0.3333333333333333 / x);
	tmp = 0.0;
	if (x <= 7e-42)
		tmp = t_0;
	elseif (x <= 6.8e-24)
		tmp = sqrt((x * 9.0)) * y;
	elseif (x <= 1.9e-10)
		tmp = t_0;
	else
		tmp = 3.0 * (sqrt(x) * (y + -1.0));
	end
	tmp_2 = tmp;
end
code[x_, y_] := Block[{t$95$0 = N[(N[Sqrt[x], $MachinePrecision] * N[(0.3333333333333333 / x), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[x, 7e-42], t$95$0, If[LessEqual[x, 6.8e-24], N[(N[Sqrt[N[(x * 9.0), $MachinePrecision]], $MachinePrecision] * y), $MachinePrecision], If[LessEqual[x, 1.9e-10], t$95$0, N[(3.0 * N[(N[Sqrt[x], $MachinePrecision] * N[(y + -1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := \sqrt{x} \cdot \frac{0.3333333333333333}{x}\\
\mathbf{if}\;x \leq 7 \cdot 10^{-42}:\\
\;\;\;\;t_0\\

\mathbf{elif}\;x \leq 6.8 \cdot 10^{-24}:\\
\;\;\;\;\sqrt{x \cdot 9} \cdot y\\

\mathbf{elif}\;x \leq 1.9 \cdot 10^{-10}:\\
\;\;\;\;t_0\\

\mathbf{else}:\\
\;\;\;\;3 \cdot \left(\sqrt{x} \cdot \left(y + -1\right)\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if x < 7.0000000000000004e-42 or 6.79999999999999985e-24 < x < 1.8999999999999999e-10

    1. Initial program 99.2%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. *-commutative99.2%

        \[\leadsto \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
      2. associate-*l*99.2%

        \[\leadsto \color{blue}{\sqrt{x} \cdot \left(3 \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      3. associate--l+99.2%

        \[\leadsto \sqrt{x} \cdot \left(3 \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      4. distribute-lft-in99.2%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\left(3 \cdot y + 3 \cdot \left(\frac{1}{x \cdot 9} - 1\right)\right)} \]
      5. fma-def99.2%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\mathsf{fma}\left(3, y, 3 \cdot \left(\frac{1}{x \cdot 9} - 1\right)\right)} \]
      6. sub-neg99.2%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right) \]
      7. +-commutative99.2%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{\left(\left(-1\right) + \frac{1}{x \cdot 9}\right)}\right) \]
      8. distribute-lft-in99.2%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, \color{blue}{3 \cdot \left(-1\right) + 3 \cdot \frac{1}{x \cdot 9}}\right) \]
      9. metadata-eval99.2%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{-1} + 3 \cdot \frac{1}{x \cdot 9}\right) \]
      10. metadata-eval99.2%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, \color{blue}{-3} + 3 \cdot \frac{1}{x \cdot 9}\right) \]
      11. *-commutative99.2%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + 3 \cdot \frac{1}{\color{blue}{9 \cdot x}}\right) \]
      12. associate-/r*99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + 3 \cdot \color{blue}{\frac{\frac{1}{9}}{x}}\right) \]
      13. associate-*r/99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \color{blue}{\frac{3 \cdot \frac{1}{9}}{x}}\right) \]
      14. metadata-eval99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{3 \cdot \color{blue}{0.1111111111111111}}{x}\right) \]
      15. metadata-eval99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{\color{blue}{0.3333333333333333}}{x}\right) \]
    3. Simplified99.3%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{0.3333333333333333}{x}\right)} \]
    4. Taylor expanded in x around 0 80.3%

      \[\leadsto \sqrt{x} \cdot \color{blue}{\frac{0.3333333333333333}{x}} \]

    if 7.0000000000000004e-42 < x < 6.79999999999999985e-24

    1. Initial program 99.1%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. associate-*l*99.1%

        \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      2. associate--l+99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      3. sub-neg99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right)\right) \]
      4. *-commutative99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{1}{\color{blue}{9 \cdot x}} + \left(-1\right)\right)\right)\right) \]
      5. associate-/r*99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\color{blue}{\frac{\frac{1}{9}}{x}} + \left(-1\right)\right)\right)\right) \]
      6. metadata-eval99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right)\right) \]
      7. metadata-eval99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right)\right) \]
    3. Simplified99.1%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)\right)} \]
    4. Step-by-step derivation
      1. associate-*r*99.3%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)} \]
      2. distribute-lft-in99.3%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right)} \]
      3. *-commutative99.3%

        \[\leadsto \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      4. metadata-eval99.3%

        \[\leadsto \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      5. sqrt-prod99.7%

        \[\leadsto \color{blue}{\sqrt{x \cdot 9}} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      6. *-commutative99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      7. metadata-eval99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      8. sqrt-prod99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\sqrt{x \cdot 9}} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      9. +-commutative99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \color{blue}{\left(-1 + \frac{0.1111111111111111}{x}\right)} \]
    5. Applied egg-rr99.7%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \left(-1 + \frac{0.1111111111111111}{x}\right)} \]
    6. Step-by-step derivation
      1. distribute-lft-out99.7%

        \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y + \left(-1 + \frac{0.1111111111111111}{x}\right)\right)} \]
      2. associate-+r+99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(\left(y + -1\right) + \frac{0.1111111111111111}{x}\right)} \]
      3. metadata-eval99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\left(y + \color{blue}{\left(-1\right)}\right) + \frac{0.1111111111111111}{x}\right) \]
      4. sub-neg99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\color{blue}{\left(y - 1\right)} + \frac{0.1111111111111111}{x}\right) \]
      5. associate-+l-99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
    7. Simplified99.7%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
    8. Taylor expanded in y around inf 78.3%

      \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{y} \]

    if 1.8999999999999999e-10 < x

    1. Initial program 99.3%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. associate-*l*99.4%

        \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      2. associate--l+99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      3. sub-neg99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right)\right) \]
      4. *-commutative99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{1}{\color{blue}{9 \cdot x}} + \left(-1\right)\right)\right)\right) \]
      5. associate-/r*99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\color{blue}{\frac{\frac{1}{9}}{x}} + \left(-1\right)\right)\right)\right) \]
      6. metadata-eval99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right)\right) \]
      7. metadata-eval99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right)\right) \]
    3. Simplified99.4%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)\right)} \]
    4. Taylor expanded in x around inf 96.3%

      \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(y - 1\right)}\right) \]
  3. Recombined 3 regimes into one program.
  4. Final simplification87.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq 7 \cdot 10^{-42}:\\ \;\;\;\;\sqrt{x} \cdot \frac{0.3333333333333333}{x}\\ \mathbf{elif}\;x \leq 6.8 \cdot 10^{-24}:\\ \;\;\;\;\sqrt{x \cdot 9} \cdot y\\ \mathbf{elif}\;x \leq 1.9 \cdot 10^{-10}:\\ \;\;\;\;\sqrt{x} \cdot \frac{0.3333333333333333}{x}\\ \mathbf{else}:\\ \;\;\;\;3 \cdot \left(\sqrt{x} \cdot \left(y + -1\right)\right)\\ \end{array} \]

Alternative 8: 85.7% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq 2.9 \cdot 10^{-42}:\\ \;\;\;\;3 \cdot \frac{\sqrt{x}}{x \cdot 9}\\ \mathbf{elif}\;x \leq 8.6 \cdot 10^{-24}:\\ \;\;\;\;\sqrt{x \cdot 9} \cdot y\\ \mathbf{elif}\;x \leq 2.5 \cdot 10^{-10}:\\ \;\;\;\;\sqrt{x} \cdot \frac{0.3333333333333333}{x}\\ \mathbf{else}:\\ \;\;\;\;3 \cdot \left(\sqrt{x} \cdot \left(y + -1\right)\right)\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (<= x 2.9e-42)
   (* 3.0 (/ (sqrt x) (* x 9.0)))
   (if (<= x 8.6e-24)
     (* (sqrt (* x 9.0)) y)
     (if (<= x 2.5e-10)
       (* (sqrt x) (/ 0.3333333333333333 x))
       (* 3.0 (* (sqrt x) (+ y -1.0)))))))
double code(double x, double y) {
	double tmp;
	if (x <= 2.9e-42) {
		tmp = 3.0 * (sqrt(x) / (x * 9.0));
	} else if (x <= 8.6e-24) {
		tmp = sqrt((x * 9.0)) * y;
	} else if (x <= 2.5e-10) {
		tmp = sqrt(x) * (0.3333333333333333 / x);
	} else {
		tmp = 3.0 * (sqrt(x) * (y + -1.0));
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if (x <= 2.9d-42) then
        tmp = 3.0d0 * (sqrt(x) / (x * 9.0d0))
    else if (x <= 8.6d-24) then
        tmp = sqrt((x * 9.0d0)) * y
    else if (x <= 2.5d-10) then
        tmp = sqrt(x) * (0.3333333333333333d0 / x)
    else
        tmp = 3.0d0 * (sqrt(x) * (y + (-1.0d0)))
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if (x <= 2.9e-42) {
		tmp = 3.0 * (Math.sqrt(x) / (x * 9.0));
	} else if (x <= 8.6e-24) {
		tmp = Math.sqrt((x * 9.0)) * y;
	} else if (x <= 2.5e-10) {
		tmp = Math.sqrt(x) * (0.3333333333333333 / x);
	} else {
		tmp = 3.0 * (Math.sqrt(x) * (y + -1.0));
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if x <= 2.9e-42:
		tmp = 3.0 * (math.sqrt(x) / (x * 9.0))
	elif x <= 8.6e-24:
		tmp = math.sqrt((x * 9.0)) * y
	elif x <= 2.5e-10:
		tmp = math.sqrt(x) * (0.3333333333333333 / x)
	else:
		tmp = 3.0 * (math.sqrt(x) * (y + -1.0))
	return tmp
function code(x, y)
	tmp = 0.0
	if (x <= 2.9e-42)
		tmp = Float64(3.0 * Float64(sqrt(x) / Float64(x * 9.0)));
	elseif (x <= 8.6e-24)
		tmp = Float64(sqrt(Float64(x * 9.0)) * y);
	elseif (x <= 2.5e-10)
		tmp = Float64(sqrt(x) * Float64(0.3333333333333333 / x));
	else
		tmp = Float64(3.0 * Float64(sqrt(x) * Float64(y + -1.0)));
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if (x <= 2.9e-42)
		tmp = 3.0 * (sqrt(x) / (x * 9.0));
	elseif (x <= 8.6e-24)
		tmp = sqrt((x * 9.0)) * y;
	elseif (x <= 2.5e-10)
		tmp = sqrt(x) * (0.3333333333333333 / x);
	else
		tmp = 3.0 * (sqrt(x) * (y + -1.0));
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[LessEqual[x, 2.9e-42], N[(3.0 * N[(N[Sqrt[x], $MachinePrecision] / N[(x * 9.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 8.6e-24], N[(N[Sqrt[N[(x * 9.0), $MachinePrecision]], $MachinePrecision] * y), $MachinePrecision], If[LessEqual[x, 2.5e-10], N[(N[Sqrt[x], $MachinePrecision] * N[(0.3333333333333333 / x), $MachinePrecision]), $MachinePrecision], N[(3.0 * N[(N[Sqrt[x], $MachinePrecision] * N[(y + -1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq 2.9 \cdot 10^{-42}:\\
\;\;\;\;3 \cdot \frac{\sqrt{x}}{x \cdot 9}\\

\mathbf{elif}\;x \leq 8.6 \cdot 10^{-24}:\\
\;\;\;\;\sqrt{x \cdot 9} \cdot y\\

\mathbf{elif}\;x \leq 2.5 \cdot 10^{-10}:\\
\;\;\;\;\sqrt{x} \cdot \frac{0.3333333333333333}{x}\\

\mathbf{else}:\\
\;\;\;\;3 \cdot \left(\sqrt{x} \cdot \left(y + -1\right)\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if x < 2.9000000000000003e-42

    1. Initial program 99.2%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. associate-*l*99.2%

        \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      2. associate--l+99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      3. sub-neg99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right)\right) \]
      4. *-commutative99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{1}{\color{blue}{9 \cdot x}} + \left(-1\right)\right)\right)\right) \]
      5. associate-/r*99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\color{blue}{\frac{\frac{1}{9}}{x}} + \left(-1\right)\right)\right)\right) \]
      6. metadata-eval99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right)\right) \]
      7. metadata-eval99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right)\right) \]
    3. Simplified99.2%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)\right)} \]
    4. Taylor expanded in x around 0 80.4%

      \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\frac{0.1111111111111111}{x}}\right) \]
    5. Step-by-step derivation
      1. clear-num80.5%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\frac{1}{\frac{x}{0.1111111111111111}}}\right) \]
      2. un-div-inv80.6%

        \[\leadsto 3 \cdot \color{blue}{\frac{\sqrt{x}}{\frac{x}{0.1111111111111111}}} \]
      3. div-inv80.7%

        \[\leadsto 3 \cdot \frac{\sqrt{x}}{\color{blue}{x \cdot \frac{1}{0.1111111111111111}}} \]
      4. metadata-eval80.7%

        \[\leadsto 3 \cdot \frac{\sqrt{x}}{x \cdot \color{blue}{9}} \]
    6. Applied egg-rr80.7%

      \[\leadsto 3 \cdot \color{blue}{\frac{\sqrt{x}}{x \cdot 9}} \]

    if 2.9000000000000003e-42 < x < 8.6000000000000006e-24

    1. Initial program 99.1%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. associate-*l*99.1%

        \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      2. associate--l+99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      3. sub-neg99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right)\right) \]
      4. *-commutative99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{1}{\color{blue}{9 \cdot x}} + \left(-1\right)\right)\right)\right) \]
      5. associate-/r*99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\color{blue}{\frac{\frac{1}{9}}{x}} + \left(-1\right)\right)\right)\right) \]
      6. metadata-eval99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right)\right) \]
      7. metadata-eval99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right)\right) \]
    3. Simplified99.1%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)\right)} \]
    4. Step-by-step derivation
      1. associate-*r*99.3%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)} \]
      2. distribute-lft-in99.3%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right)} \]
      3. *-commutative99.3%

        \[\leadsto \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      4. metadata-eval99.3%

        \[\leadsto \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      5. sqrt-prod99.7%

        \[\leadsto \color{blue}{\sqrt{x \cdot 9}} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      6. *-commutative99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      7. metadata-eval99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      8. sqrt-prod99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\sqrt{x \cdot 9}} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      9. +-commutative99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \color{blue}{\left(-1 + \frac{0.1111111111111111}{x}\right)} \]
    5. Applied egg-rr99.7%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \left(-1 + \frac{0.1111111111111111}{x}\right)} \]
    6. Step-by-step derivation
      1. distribute-lft-out99.7%

        \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y + \left(-1 + \frac{0.1111111111111111}{x}\right)\right)} \]
      2. associate-+r+99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(\left(y + -1\right) + \frac{0.1111111111111111}{x}\right)} \]
      3. metadata-eval99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\left(y + \color{blue}{\left(-1\right)}\right) + \frac{0.1111111111111111}{x}\right) \]
      4. sub-neg99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\color{blue}{\left(y - 1\right)} + \frac{0.1111111111111111}{x}\right) \]
      5. associate-+l-99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
    7. Simplified99.7%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
    8. Taylor expanded in y around inf 78.3%

      \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{y} \]

    if 8.6000000000000006e-24 < x < 2.50000000000000016e-10

    1. Initial program 99.4%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. *-commutative99.4%

        \[\leadsto \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
      2. associate-*l*99.0%

        \[\leadsto \color{blue}{\sqrt{x} \cdot \left(3 \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      3. associate--l+99.0%

        \[\leadsto \sqrt{x} \cdot \left(3 \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      4. distribute-lft-in99.2%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\left(3 \cdot y + 3 \cdot \left(\frac{1}{x \cdot 9} - 1\right)\right)} \]
      5. fma-def99.2%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\mathsf{fma}\left(3, y, 3 \cdot \left(\frac{1}{x \cdot 9} - 1\right)\right)} \]
      6. sub-neg99.2%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right) \]
      7. +-commutative99.2%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{\left(\left(-1\right) + \frac{1}{x \cdot 9}\right)}\right) \]
      8. distribute-lft-in99.2%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, \color{blue}{3 \cdot \left(-1\right) + 3 \cdot \frac{1}{x \cdot 9}}\right) \]
      9. metadata-eval99.2%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{-1} + 3 \cdot \frac{1}{x \cdot 9}\right) \]
      10. metadata-eval99.2%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, \color{blue}{-3} + 3 \cdot \frac{1}{x \cdot 9}\right) \]
      11. *-commutative99.2%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + 3 \cdot \frac{1}{\color{blue}{9 \cdot x}}\right) \]
      12. associate-/r*99.1%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + 3 \cdot \color{blue}{\frac{\frac{1}{9}}{x}}\right) \]
      13. associate-*r/99.2%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \color{blue}{\frac{3 \cdot \frac{1}{9}}{x}}\right) \]
      14. metadata-eval99.2%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{3 \cdot \color{blue}{0.1111111111111111}}{x}\right) \]
      15. metadata-eval99.2%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{\color{blue}{0.3333333333333333}}{x}\right) \]
    3. Simplified99.2%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{0.3333333333333333}{x}\right)} \]
    4. Taylor expanded in x around 0 76.2%

      \[\leadsto \sqrt{x} \cdot \color{blue}{\frac{0.3333333333333333}{x}} \]

    if 2.50000000000000016e-10 < x

    1. Initial program 99.3%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. associate-*l*99.4%

        \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      2. associate--l+99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      3. sub-neg99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right)\right) \]
      4. *-commutative99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{1}{\color{blue}{9 \cdot x}} + \left(-1\right)\right)\right)\right) \]
      5. associate-/r*99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\color{blue}{\frac{\frac{1}{9}}{x}} + \left(-1\right)\right)\right)\right) \]
      6. metadata-eval99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right)\right) \]
      7. metadata-eval99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right)\right) \]
    3. Simplified99.4%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)\right)} \]
    4. Taylor expanded in x around inf 96.3%

      \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(y - 1\right)}\right) \]
  3. Recombined 4 regimes into one program.
  4. Final simplification87.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq 2.9 \cdot 10^{-42}:\\ \;\;\;\;3 \cdot \frac{\sqrt{x}}{x \cdot 9}\\ \mathbf{elif}\;x \leq 8.6 \cdot 10^{-24}:\\ \;\;\;\;\sqrt{x \cdot 9} \cdot y\\ \mathbf{elif}\;x \leq 2.5 \cdot 10^{-10}:\\ \;\;\;\;\sqrt{x} \cdot \frac{0.3333333333333333}{x}\\ \mathbf{else}:\\ \;\;\;\;3 \cdot \left(\sqrt{x} \cdot \left(y + -1\right)\right)\\ \end{array} \]

Alternative 9: 85.9% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq 3.6 \cdot 10^{-42}:\\ \;\;\;\;3 \cdot \frac{\sqrt{x}}{x \cdot 9}\\ \mathbf{elif}\;x \leq 9.6 \cdot 10^{-24}:\\ \;\;\;\;\sqrt{x \cdot 9} \cdot y\\ \mathbf{elif}\;x \leq 0.0007:\\ \;\;\;\;\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)\\ \mathbf{else}:\\ \;\;\;\;3 \cdot \left(\sqrt{x} \cdot \left(y + -1\right)\right)\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (<= x 3.6e-42)
   (* 3.0 (/ (sqrt x) (* x 9.0)))
   (if (<= x 9.6e-24)
     (* (sqrt (* x 9.0)) y)
     (if (<= x 0.0007)
       (* (sqrt x) (+ (/ 0.3333333333333333 x) -3.0))
       (* 3.0 (* (sqrt x) (+ y -1.0)))))))
double code(double x, double y) {
	double tmp;
	if (x <= 3.6e-42) {
		tmp = 3.0 * (sqrt(x) / (x * 9.0));
	} else if (x <= 9.6e-24) {
		tmp = sqrt((x * 9.0)) * y;
	} else if (x <= 0.0007) {
		tmp = sqrt(x) * ((0.3333333333333333 / x) + -3.0);
	} else {
		tmp = 3.0 * (sqrt(x) * (y + -1.0));
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if (x <= 3.6d-42) then
        tmp = 3.0d0 * (sqrt(x) / (x * 9.0d0))
    else if (x <= 9.6d-24) then
        tmp = sqrt((x * 9.0d0)) * y
    else if (x <= 0.0007d0) then
        tmp = sqrt(x) * ((0.3333333333333333d0 / x) + (-3.0d0))
    else
        tmp = 3.0d0 * (sqrt(x) * (y + (-1.0d0)))
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if (x <= 3.6e-42) {
		tmp = 3.0 * (Math.sqrt(x) / (x * 9.0));
	} else if (x <= 9.6e-24) {
		tmp = Math.sqrt((x * 9.0)) * y;
	} else if (x <= 0.0007) {
		tmp = Math.sqrt(x) * ((0.3333333333333333 / x) + -3.0);
	} else {
		tmp = 3.0 * (Math.sqrt(x) * (y + -1.0));
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if x <= 3.6e-42:
		tmp = 3.0 * (math.sqrt(x) / (x * 9.0))
	elif x <= 9.6e-24:
		tmp = math.sqrt((x * 9.0)) * y
	elif x <= 0.0007:
		tmp = math.sqrt(x) * ((0.3333333333333333 / x) + -3.0)
	else:
		tmp = 3.0 * (math.sqrt(x) * (y + -1.0))
	return tmp
function code(x, y)
	tmp = 0.0
	if (x <= 3.6e-42)
		tmp = Float64(3.0 * Float64(sqrt(x) / Float64(x * 9.0)));
	elseif (x <= 9.6e-24)
		tmp = Float64(sqrt(Float64(x * 9.0)) * y);
	elseif (x <= 0.0007)
		tmp = Float64(sqrt(x) * Float64(Float64(0.3333333333333333 / x) + -3.0));
	else
		tmp = Float64(3.0 * Float64(sqrt(x) * Float64(y + -1.0)));
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if (x <= 3.6e-42)
		tmp = 3.0 * (sqrt(x) / (x * 9.0));
	elseif (x <= 9.6e-24)
		tmp = sqrt((x * 9.0)) * y;
	elseif (x <= 0.0007)
		tmp = sqrt(x) * ((0.3333333333333333 / x) + -3.0);
	else
		tmp = 3.0 * (sqrt(x) * (y + -1.0));
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[LessEqual[x, 3.6e-42], N[(3.0 * N[(N[Sqrt[x], $MachinePrecision] / N[(x * 9.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 9.6e-24], N[(N[Sqrt[N[(x * 9.0), $MachinePrecision]], $MachinePrecision] * y), $MachinePrecision], If[LessEqual[x, 0.0007], N[(N[Sqrt[x], $MachinePrecision] * N[(N[(0.3333333333333333 / x), $MachinePrecision] + -3.0), $MachinePrecision]), $MachinePrecision], N[(3.0 * N[(N[Sqrt[x], $MachinePrecision] * N[(y + -1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq 3.6 \cdot 10^{-42}:\\
\;\;\;\;3 \cdot \frac{\sqrt{x}}{x \cdot 9}\\

\mathbf{elif}\;x \leq 9.6 \cdot 10^{-24}:\\
\;\;\;\;\sqrt{x \cdot 9} \cdot y\\

\mathbf{elif}\;x \leq 0.0007:\\
\;\;\;\;\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)\\

\mathbf{else}:\\
\;\;\;\;3 \cdot \left(\sqrt{x} \cdot \left(y + -1\right)\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if x < 3.6000000000000002e-42

    1. Initial program 99.2%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. associate-*l*99.2%

        \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      2. associate--l+99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      3. sub-neg99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right)\right) \]
      4. *-commutative99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{1}{\color{blue}{9 \cdot x}} + \left(-1\right)\right)\right)\right) \]
      5. associate-/r*99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\color{blue}{\frac{\frac{1}{9}}{x}} + \left(-1\right)\right)\right)\right) \]
      6. metadata-eval99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right)\right) \]
      7. metadata-eval99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right)\right) \]
    3. Simplified99.2%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)\right)} \]
    4. Taylor expanded in x around 0 80.4%

      \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\frac{0.1111111111111111}{x}}\right) \]
    5. Step-by-step derivation
      1. clear-num80.5%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\frac{1}{\frac{x}{0.1111111111111111}}}\right) \]
      2. un-div-inv80.6%

        \[\leadsto 3 \cdot \color{blue}{\frac{\sqrt{x}}{\frac{x}{0.1111111111111111}}} \]
      3. div-inv80.7%

        \[\leadsto 3 \cdot \frac{\sqrt{x}}{\color{blue}{x \cdot \frac{1}{0.1111111111111111}}} \]
      4. metadata-eval80.7%

        \[\leadsto 3 \cdot \frac{\sqrt{x}}{x \cdot \color{blue}{9}} \]
    6. Applied egg-rr80.7%

      \[\leadsto 3 \cdot \color{blue}{\frac{\sqrt{x}}{x \cdot 9}} \]

    if 3.6000000000000002e-42 < x < 9.5999999999999993e-24

    1. Initial program 99.1%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. associate-*l*99.1%

        \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      2. associate--l+99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      3. sub-neg99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right)\right) \]
      4. *-commutative99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{1}{\color{blue}{9 \cdot x}} + \left(-1\right)\right)\right)\right) \]
      5. associate-/r*99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\color{blue}{\frac{\frac{1}{9}}{x}} + \left(-1\right)\right)\right)\right) \]
      6. metadata-eval99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right)\right) \]
      7. metadata-eval99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right)\right) \]
    3. Simplified99.1%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)\right)} \]
    4. Step-by-step derivation
      1. associate-*r*99.3%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)} \]
      2. distribute-lft-in99.3%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right)} \]
      3. *-commutative99.3%

        \[\leadsto \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      4. metadata-eval99.3%

        \[\leadsto \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      5. sqrt-prod99.7%

        \[\leadsto \color{blue}{\sqrt{x \cdot 9}} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      6. *-commutative99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      7. metadata-eval99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      8. sqrt-prod99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\sqrt{x \cdot 9}} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      9. +-commutative99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \color{blue}{\left(-1 + \frac{0.1111111111111111}{x}\right)} \]
    5. Applied egg-rr99.7%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \left(-1 + \frac{0.1111111111111111}{x}\right)} \]
    6. Step-by-step derivation
      1. distribute-lft-out99.7%

        \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y + \left(-1 + \frac{0.1111111111111111}{x}\right)\right)} \]
      2. associate-+r+99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(\left(y + -1\right) + \frac{0.1111111111111111}{x}\right)} \]
      3. metadata-eval99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\left(y + \color{blue}{\left(-1\right)}\right) + \frac{0.1111111111111111}{x}\right) \]
      4. sub-neg99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\color{blue}{\left(y - 1\right)} + \frac{0.1111111111111111}{x}\right) \]
      5. associate-+l-99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
    7. Simplified99.7%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
    8. Taylor expanded in y around inf 78.3%

      \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{y} \]

    if 9.5999999999999993e-24 < x < 6.99999999999999993e-4

    1. Initial program 99.5%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. *-commutative99.5%

        \[\leadsto \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
      2. associate-*l*99.2%

        \[\leadsto \color{blue}{\sqrt{x} \cdot \left(3 \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      3. associate--l+99.2%

        \[\leadsto \sqrt{x} \cdot \left(3 \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      4. distribute-lft-in99.3%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\left(3 \cdot y + 3 \cdot \left(\frac{1}{x \cdot 9} - 1\right)\right)} \]
      5. fma-def99.3%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\mathsf{fma}\left(3, y, 3 \cdot \left(\frac{1}{x \cdot 9} - 1\right)\right)} \]
      6. sub-neg99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right) \]
      7. +-commutative99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{\left(\left(-1\right) + \frac{1}{x \cdot 9}\right)}\right) \]
      8. distribute-lft-in99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, \color{blue}{3 \cdot \left(-1\right) + 3 \cdot \frac{1}{x \cdot 9}}\right) \]
      9. metadata-eval99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{-1} + 3 \cdot \frac{1}{x \cdot 9}\right) \]
      10. metadata-eval99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, \color{blue}{-3} + 3 \cdot \frac{1}{x \cdot 9}\right) \]
      11. *-commutative99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + 3 \cdot \frac{1}{\color{blue}{9 \cdot x}}\right) \]
      12. associate-/r*99.2%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + 3 \cdot \color{blue}{\frac{\frac{1}{9}}{x}}\right) \]
      13. associate-*r/99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \color{blue}{\frac{3 \cdot \frac{1}{9}}{x}}\right) \]
      14. metadata-eval99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{3 \cdot \color{blue}{0.1111111111111111}}{x}\right) \]
      15. metadata-eval99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{\color{blue}{0.3333333333333333}}{x}\right) \]
    3. Simplified99.3%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{0.3333333333333333}{x}\right)} \]
    4. Taylor expanded in y around 0 73.7%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(0.3333333333333333 \cdot \frac{1}{x} - 3\right)} \]
    5. Step-by-step derivation
      1. sub-neg73.7%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{x} + \left(-3\right)\right)} \]
      2. associate-*r/73.9%

        \[\leadsto \sqrt{x} \cdot \left(\color{blue}{\frac{0.3333333333333333 \cdot 1}{x}} + \left(-3\right)\right) \]
      3. metadata-eval73.9%

        \[\leadsto \sqrt{x} \cdot \left(\frac{\color{blue}{0.3333333333333333}}{x} + \left(-3\right)\right) \]
      4. metadata-eval73.9%

        \[\leadsto \sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \color{blue}{-3}\right) \]
    6. Simplified73.9%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)} \]

    if 6.99999999999999993e-4 < x

    1. Initial program 99.3%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. associate-*l*99.4%

        \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      2. associate--l+99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      3. sub-neg99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right)\right) \]
      4. *-commutative99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{1}{\color{blue}{9 \cdot x}} + \left(-1\right)\right)\right)\right) \]
      5. associate-/r*99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\color{blue}{\frac{\frac{1}{9}}{x}} + \left(-1\right)\right)\right)\right) \]
      6. metadata-eval99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right)\right) \]
      7. metadata-eval99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right)\right) \]
    3. Simplified99.4%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)\right)} \]
    4. Taylor expanded in x around inf 98.8%

      \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(y - 1\right)}\right) \]
  3. Recombined 4 regimes into one program.
  4. Final simplification88.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq 3.6 \cdot 10^{-42}:\\ \;\;\;\;3 \cdot \frac{\sqrt{x}}{x \cdot 9}\\ \mathbf{elif}\;x \leq 9.6 \cdot 10^{-24}:\\ \;\;\;\;\sqrt{x \cdot 9} \cdot y\\ \mathbf{elif}\;x \leq 0.0007:\\ \;\;\;\;\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)\\ \mathbf{else}:\\ \;\;\;\;3 \cdot \left(\sqrt{x} \cdot \left(y + -1\right)\right)\\ \end{array} \]

Alternative 10: 85.7% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := \sqrt{x \cdot 9}\\ \mathbf{if}\;x \leq 7.6 \cdot 10^{-44}:\\ \;\;\;\;3 \cdot \frac{\sqrt{x}}{x \cdot 9}\\ \mathbf{elif}\;x \leq 6.4 \cdot 10^{-24}:\\ \;\;\;\;t_0 \cdot y\\ \mathbf{elif}\;x \leq 0.0014:\\ \;\;\;\;\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)\\ \mathbf{else}:\\ \;\;\;\;t_0 \cdot \left(y + -1\right)\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (let* ((t_0 (sqrt (* x 9.0))))
   (if (<= x 7.6e-44)
     (* 3.0 (/ (sqrt x) (* x 9.0)))
     (if (<= x 6.4e-24)
       (* t_0 y)
       (if (<= x 0.0014)
         (* (sqrt x) (+ (/ 0.3333333333333333 x) -3.0))
         (* t_0 (+ y -1.0)))))))
double code(double x, double y) {
	double t_0 = sqrt((x * 9.0));
	double tmp;
	if (x <= 7.6e-44) {
		tmp = 3.0 * (sqrt(x) / (x * 9.0));
	} else if (x <= 6.4e-24) {
		tmp = t_0 * y;
	} else if (x <= 0.0014) {
		tmp = sqrt(x) * ((0.3333333333333333 / x) + -3.0);
	} else {
		tmp = t_0 * (y + -1.0);
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: t_0
    real(8) :: tmp
    t_0 = sqrt((x * 9.0d0))
    if (x <= 7.6d-44) then
        tmp = 3.0d0 * (sqrt(x) / (x * 9.0d0))
    else if (x <= 6.4d-24) then
        tmp = t_0 * y
    else if (x <= 0.0014d0) then
        tmp = sqrt(x) * ((0.3333333333333333d0 / x) + (-3.0d0))
    else
        tmp = t_0 * (y + (-1.0d0))
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double t_0 = Math.sqrt((x * 9.0));
	double tmp;
	if (x <= 7.6e-44) {
		tmp = 3.0 * (Math.sqrt(x) / (x * 9.0));
	} else if (x <= 6.4e-24) {
		tmp = t_0 * y;
	} else if (x <= 0.0014) {
		tmp = Math.sqrt(x) * ((0.3333333333333333 / x) + -3.0);
	} else {
		tmp = t_0 * (y + -1.0);
	}
	return tmp;
}
def code(x, y):
	t_0 = math.sqrt((x * 9.0))
	tmp = 0
	if x <= 7.6e-44:
		tmp = 3.0 * (math.sqrt(x) / (x * 9.0))
	elif x <= 6.4e-24:
		tmp = t_0 * y
	elif x <= 0.0014:
		tmp = math.sqrt(x) * ((0.3333333333333333 / x) + -3.0)
	else:
		tmp = t_0 * (y + -1.0)
	return tmp
function code(x, y)
	t_0 = sqrt(Float64(x * 9.0))
	tmp = 0.0
	if (x <= 7.6e-44)
		tmp = Float64(3.0 * Float64(sqrt(x) / Float64(x * 9.0)));
	elseif (x <= 6.4e-24)
		tmp = Float64(t_0 * y);
	elseif (x <= 0.0014)
		tmp = Float64(sqrt(x) * Float64(Float64(0.3333333333333333 / x) + -3.0));
	else
		tmp = Float64(t_0 * Float64(y + -1.0));
	end
	return tmp
end
function tmp_2 = code(x, y)
	t_0 = sqrt((x * 9.0));
	tmp = 0.0;
	if (x <= 7.6e-44)
		tmp = 3.0 * (sqrt(x) / (x * 9.0));
	elseif (x <= 6.4e-24)
		tmp = t_0 * y;
	elseif (x <= 0.0014)
		tmp = sqrt(x) * ((0.3333333333333333 / x) + -3.0);
	else
		tmp = t_0 * (y + -1.0);
	end
	tmp_2 = tmp;
end
code[x_, y_] := Block[{t$95$0 = N[Sqrt[N[(x * 9.0), $MachinePrecision]], $MachinePrecision]}, If[LessEqual[x, 7.6e-44], N[(3.0 * N[(N[Sqrt[x], $MachinePrecision] / N[(x * 9.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 6.4e-24], N[(t$95$0 * y), $MachinePrecision], If[LessEqual[x, 0.0014], N[(N[Sqrt[x], $MachinePrecision] * N[(N[(0.3333333333333333 / x), $MachinePrecision] + -3.0), $MachinePrecision]), $MachinePrecision], N[(t$95$0 * N[(y + -1.0), $MachinePrecision]), $MachinePrecision]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := \sqrt{x \cdot 9}\\
\mathbf{if}\;x \leq 7.6 \cdot 10^{-44}:\\
\;\;\;\;3 \cdot \frac{\sqrt{x}}{x \cdot 9}\\

\mathbf{elif}\;x \leq 6.4 \cdot 10^{-24}:\\
\;\;\;\;t_0 \cdot y\\

\mathbf{elif}\;x \leq 0.0014:\\
\;\;\;\;\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)\\

\mathbf{else}:\\
\;\;\;\;t_0 \cdot \left(y + -1\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if x < 7.6000000000000002e-44

    1. Initial program 99.2%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. associate-*l*99.2%

        \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      2. associate--l+99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      3. sub-neg99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right)\right) \]
      4. *-commutative99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{1}{\color{blue}{9 \cdot x}} + \left(-1\right)\right)\right)\right) \]
      5. associate-/r*99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\color{blue}{\frac{\frac{1}{9}}{x}} + \left(-1\right)\right)\right)\right) \]
      6. metadata-eval99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right)\right) \]
      7. metadata-eval99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right)\right) \]
    3. Simplified99.2%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)\right)} \]
    4. Taylor expanded in x around 0 80.4%

      \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\frac{0.1111111111111111}{x}}\right) \]
    5. Step-by-step derivation
      1. clear-num80.5%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\frac{1}{\frac{x}{0.1111111111111111}}}\right) \]
      2. un-div-inv80.6%

        \[\leadsto 3 \cdot \color{blue}{\frac{\sqrt{x}}{\frac{x}{0.1111111111111111}}} \]
      3. div-inv80.7%

        \[\leadsto 3 \cdot \frac{\sqrt{x}}{\color{blue}{x \cdot \frac{1}{0.1111111111111111}}} \]
      4. metadata-eval80.7%

        \[\leadsto 3 \cdot \frac{\sqrt{x}}{x \cdot \color{blue}{9}} \]
    6. Applied egg-rr80.7%

      \[\leadsto 3 \cdot \color{blue}{\frac{\sqrt{x}}{x \cdot 9}} \]

    if 7.6000000000000002e-44 < x < 6.40000000000000025e-24

    1. Initial program 99.1%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. associate-*l*99.1%

        \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      2. associate--l+99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      3. sub-neg99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right)\right) \]
      4. *-commutative99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{1}{\color{blue}{9 \cdot x}} + \left(-1\right)\right)\right)\right) \]
      5. associate-/r*99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\color{blue}{\frac{\frac{1}{9}}{x}} + \left(-1\right)\right)\right)\right) \]
      6. metadata-eval99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right)\right) \]
      7. metadata-eval99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right)\right) \]
    3. Simplified99.1%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)\right)} \]
    4. Step-by-step derivation
      1. associate-*r*99.3%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)} \]
      2. distribute-lft-in99.3%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right)} \]
      3. *-commutative99.3%

        \[\leadsto \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      4. metadata-eval99.3%

        \[\leadsto \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      5. sqrt-prod99.7%

        \[\leadsto \color{blue}{\sqrt{x \cdot 9}} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      6. *-commutative99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      7. metadata-eval99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      8. sqrt-prod99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\sqrt{x \cdot 9}} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      9. +-commutative99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \color{blue}{\left(-1 + \frac{0.1111111111111111}{x}\right)} \]
    5. Applied egg-rr99.7%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \left(-1 + \frac{0.1111111111111111}{x}\right)} \]
    6. Step-by-step derivation
      1. distribute-lft-out99.7%

        \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y + \left(-1 + \frac{0.1111111111111111}{x}\right)\right)} \]
      2. associate-+r+99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(\left(y + -1\right) + \frac{0.1111111111111111}{x}\right)} \]
      3. metadata-eval99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\left(y + \color{blue}{\left(-1\right)}\right) + \frac{0.1111111111111111}{x}\right) \]
      4. sub-neg99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\color{blue}{\left(y - 1\right)} + \frac{0.1111111111111111}{x}\right) \]
      5. associate-+l-99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
    7. Simplified99.7%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
    8. Taylor expanded in y around inf 78.3%

      \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{y} \]

    if 6.40000000000000025e-24 < x < 0.00139999999999999999

    1. Initial program 99.5%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. *-commutative99.5%

        \[\leadsto \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
      2. associate-*l*99.2%

        \[\leadsto \color{blue}{\sqrt{x} \cdot \left(3 \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      3. associate--l+99.2%

        \[\leadsto \sqrt{x} \cdot \left(3 \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      4. distribute-lft-in99.3%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\left(3 \cdot y + 3 \cdot \left(\frac{1}{x \cdot 9} - 1\right)\right)} \]
      5. fma-def99.3%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\mathsf{fma}\left(3, y, 3 \cdot \left(\frac{1}{x \cdot 9} - 1\right)\right)} \]
      6. sub-neg99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right) \]
      7. +-commutative99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{\left(\left(-1\right) + \frac{1}{x \cdot 9}\right)}\right) \]
      8. distribute-lft-in99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, \color{blue}{3 \cdot \left(-1\right) + 3 \cdot \frac{1}{x \cdot 9}}\right) \]
      9. metadata-eval99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{-1} + 3 \cdot \frac{1}{x \cdot 9}\right) \]
      10. metadata-eval99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, \color{blue}{-3} + 3 \cdot \frac{1}{x \cdot 9}\right) \]
      11. *-commutative99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + 3 \cdot \frac{1}{\color{blue}{9 \cdot x}}\right) \]
      12. associate-/r*99.2%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + 3 \cdot \color{blue}{\frac{\frac{1}{9}}{x}}\right) \]
      13. associate-*r/99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \color{blue}{\frac{3 \cdot \frac{1}{9}}{x}}\right) \]
      14. metadata-eval99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{3 \cdot \color{blue}{0.1111111111111111}}{x}\right) \]
      15. metadata-eval99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{\color{blue}{0.3333333333333333}}{x}\right) \]
    3. Simplified99.3%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{0.3333333333333333}{x}\right)} \]
    4. Taylor expanded in y around 0 73.7%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(0.3333333333333333 \cdot \frac{1}{x} - 3\right)} \]
    5. Step-by-step derivation
      1. sub-neg73.7%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{x} + \left(-3\right)\right)} \]
      2. associate-*r/73.9%

        \[\leadsto \sqrt{x} \cdot \left(\color{blue}{\frac{0.3333333333333333 \cdot 1}{x}} + \left(-3\right)\right) \]
      3. metadata-eval73.9%

        \[\leadsto \sqrt{x} \cdot \left(\frac{\color{blue}{0.3333333333333333}}{x} + \left(-3\right)\right) \]
      4. metadata-eval73.9%

        \[\leadsto \sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \color{blue}{-3}\right) \]
    6. Simplified73.9%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)} \]

    if 0.00139999999999999999 < x

    1. Initial program 99.3%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. associate-*l*99.4%

        \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      2. associate--l+99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      3. sub-neg99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right)\right) \]
      4. *-commutative99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{1}{\color{blue}{9 \cdot x}} + \left(-1\right)\right)\right)\right) \]
      5. associate-/r*99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\color{blue}{\frac{\frac{1}{9}}{x}} + \left(-1\right)\right)\right)\right) \]
      6. metadata-eval99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right)\right) \]
      7. metadata-eval99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right)\right) \]
    3. Simplified99.4%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)\right)} \]
    4. Step-by-step derivation
      1. associate-*r*99.3%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)} \]
      2. distribute-lft-in99.3%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right)} \]
      3. *-commutative99.3%

        \[\leadsto \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      4. metadata-eval99.3%

        \[\leadsto \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      5. sqrt-prod99.4%

        \[\leadsto \color{blue}{\sqrt{x \cdot 9}} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      6. *-commutative99.4%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      7. metadata-eval99.4%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      8. sqrt-prod99.6%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\sqrt{x \cdot 9}} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      9. +-commutative99.6%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \color{blue}{\left(-1 + \frac{0.1111111111111111}{x}\right)} \]
    5. Applied egg-rr99.6%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \left(-1 + \frac{0.1111111111111111}{x}\right)} \]
    6. Step-by-step derivation
      1. distribute-lft-out99.6%

        \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y + \left(-1 + \frac{0.1111111111111111}{x}\right)\right)} \]
      2. associate-+r+99.6%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(\left(y + -1\right) + \frac{0.1111111111111111}{x}\right)} \]
      3. metadata-eval99.6%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\left(y + \color{blue}{\left(-1\right)}\right) + \frac{0.1111111111111111}{x}\right) \]
      4. sub-neg99.6%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\color{blue}{\left(y - 1\right)} + \frac{0.1111111111111111}{x}\right) \]
      5. associate-+l-99.6%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
    7. Simplified99.6%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
    8. Taylor expanded in x around inf 99.0%

      \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(y - 1\right)} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification88.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq 7.6 \cdot 10^{-44}:\\ \;\;\;\;3 \cdot \frac{\sqrt{x}}{x \cdot 9}\\ \mathbf{elif}\;x \leq 6.4 \cdot 10^{-24}:\\ \;\;\;\;\sqrt{x \cdot 9} \cdot y\\ \mathbf{elif}\;x \leq 0.0014:\\ \;\;\;\;\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x \cdot 9} \cdot \left(y + -1\right)\\ \end{array} \]

Alternative 11: 85.8% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := \sqrt{x \cdot 9}\\ \mathbf{if}\;x \leq 6 \cdot 10^{-42}:\\ \;\;\;\;\frac{3}{x} \cdot \frac{\sqrt{x}}{9}\\ \mathbf{elif}\;x \leq 6.1 \cdot 10^{-24}:\\ \;\;\;\;t_0 \cdot y\\ \mathbf{elif}\;x \leq 0.00092:\\ \;\;\;\;\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)\\ \mathbf{else}:\\ \;\;\;\;t_0 \cdot \left(y + -1\right)\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (let* ((t_0 (sqrt (* x 9.0))))
   (if (<= x 6e-42)
     (* (/ 3.0 x) (/ (sqrt x) 9.0))
     (if (<= x 6.1e-24)
       (* t_0 y)
       (if (<= x 0.00092)
         (* (sqrt x) (+ (/ 0.3333333333333333 x) -3.0))
         (* t_0 (+ y -1.0)))))))
double code(double x, double y) {
	double t_0 = sqrt((x * 9.0));
	double tmp;
	if (x <= 6e-42) {
		tmp = (3.0 / x) * (sqrt(x) / 9.0);
	} else if (x <= 6.1e-24) {
		tmp = t_0 * y;
	} else if (x <= 0.00092) {
		tmp = sqrt(x) * ((0.3333333333333333 / x) + -3.0);
	} else {
		tmp = t_0 * (y + -1.0);
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: t_0
    real(8) :: tmp
    t_0 = sqrt((x * 9.0d0))
    if (x <= 6d-42) then
        tmp = (3.0d0 / x) * (sqrt(x) / 9.0d0)
    else if (x <= 6.1d-24) then
        tmp = t_0 * y
    else if (x <= 0.00092d0) then
        tmp = sqrt(x) * ((0.3333333333333333d0 / x) + (-3.0d0))
    else
        tmp = t_0 * (y + (-1.0d0))
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double t_0 = Math.sqrt((x * 9.0));
	double tmp;
	if (x <= 6e-42) {
		tmp = (3.0 / x) * (Math.sqrt(x) / 9.0);
	} else if (x <= 6.1e-24) {
		tmp = t_0 * y;
	} else if (x <= 0.00092) {
		tmp = Math.sqrt(x) * ((0.3333333333333333 / x) + -3.0);
	} else {
		tmp = t_0 * (y + -1.0);
	}
	return tmp;
}
def code(x, y):
	t_0 = math.sqrt((x * 9.0))
	tmp = 0
	if x <= 6e-42:
		tmp = (3.0 / x) * (math.sqrt(x) / 9.0)
	elif x <= 6.1e-24:
		tmp = t_0 * y
	elif x <= 0.00092:
		tmp = math.sqrt(x) * ((0.3333333333333333 / x) + -3.0)
	else:
		tmp = t_0 * (y + -1.0)
	return tmp
function code(x, y)
	t_0 = sqrt(Float64(x * 9.0))
	tmp = 0.0
	if (x <= 6e-42)
		tmp = Float64(Float64(3.0 / x) * Float64(sqrt(x) / 9.0));
	elseif (x <= 6.1e-24)
		tmp = Float64(t_0 * y);
	elseif (x <= 0.00092)
		tmp = Float64(sqrt(x) * Float64(Float64(0.3333333333333333 / x) + -3.0));
	else
		tmp = Float64(t_0 * Float64(y + -1.0));
	end
	return tmp
end
function tmp_2 = code(x, y)
	t_0 = sqrt((x * 9.0));
	tmp = 0.0;
	if (x <= 6e-42)
		tmp = (3.0 / x) * (sqrt(x) / 9.0);
	elseif (x <= 6.1e-24)
		tmp = t_0 * y;
	elseif (x <= 0.00092)
		tmp = sqrt(x) * ((0.3333333333333333 / x) + -3.0);
	else
		tmp = t_0 * (y + -1.0);
	end
	tmp_2 = tmp;
end
code[x_, y_] := Block[{t$95$0 = N[Sqrt[N[(x * 9.0), $MachinePrecision]], $MachinePrecision]}, If[LessEqual[x, 6e-42], N[(N[(3.0 / x), $MachinePrecision] * N[(N[Sqrt[x], $MachinePrecision] / 9.0), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 6.1e-24], N[(t$95$0 * y), $MachinePrecision], If[LessEqual[x, 0.00092], N[(N[Sqrt[x], $MachinePrecision] * N[(N[(0.3333333333333333 / x), $MachinePrecision] + -3.0), $MachinePrecision]), $MachinePrecision], N[(t$95$0 * N[(y + -1.0), $MachinePrecision]), $MachinePrecision]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := \sqrt{x \cdot 9}\\
\mathbf{if}\;x \leq 6 \cdot 10^{-42}:\\
\;\;\;\;\frac{3}{x} \cdot \frac{\sqrt{x}}{9}\\

\mathbf{elif}\;x \leq 6.1 \cdot 10^{-24}:\\
\;\;\;\;t_0 \cdot y\\

\mathbf{elif}\;x \leq 0.00092:\\
\;\;\;\;\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)\\

\mathbf{else}:\\
\;\;\;\;t_0 \cdot \left(y + -1\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if x < 6.00000000000000054e-42

    1. Initial program 99.2%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. associate-*l*99.2%

        \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      2. associate--l+99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      3. sub-neg99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right)\right) \]
      4. *-commutative99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{1}{\color{blue}{9 \cdot x}} + \left(-1\right)\right)\right)\right) \]
      5. associate-/r*99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\color{blue}{\frac{\frac{1}{9}}{x}} + \left(-1\right)\right)\right)\right) \]
      6. metadata-eval99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right)\right) \]
      7. metadata-eval99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right)\right) \]
    3. Simplified99.2%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)\right)} \]
    4. Taylor expanded in x around 0 80.4%

      \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\frac{0.1111111111111111}{x}}\right) \]
    5. Step-by-step derivation
      1. associate-*r*80.6%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \frac{0.1111111111111111}{x}} \]
      2. clear-num80.6%

        \[\leadsto \left(3 \cdot \sqrt{x}\right) \cdot \color{blue}{\frac{1}{\frac{x}{0.1111111111111111}}} \]
      3. un-div-inv80.6%

        \[\leadsto \color{blue}{\frac{3 \cdot \sqrt{x}}{\frac{x}{0.1111111111111111}}} \]
      4. div-inv80.7%

        \[\leadsto \frac{3 \cdot \sqrt{x}}{\color{blue}{x \cdot \frac{1}{0.1111111111111111}}} \]
      5. metadata-eval80.7%

        \[\leadsto \frac{3 \cdot \sqrt{x}}{x \cdot \color{blue}{9}} \]
    6. Applied egg-rr80.7%

      \[\leadsto \color{blue}{\frac{3 \cdot \sqrt{x}}{x \cdot 9}} \]
    7. Step-by-step derivation
      1. times-frac80.7%

        \[\leadsto \color{blue}{\frac{3}{x} \cdot \frac{\sqrt{x}}{9}} \]
    8. Simplified80.7%

      \[\leadsto \color{blue}{\frac{3}{x} \cdot \frac{\sqrt{x}}{9}} \]

    if 6.00000000000000054e-42 < x < 6.10000000000000036e-24

    1. Initial program 99.1%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. associate-*l*99.1%

        \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      2. associate--l+99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      3. sub-neg99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right)\right) \]
      4. *-commutative99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{1}{\color{blue}{9 \cdot x}} + \left(-1\right)\right)\right)\right) \]
      5. associate-/r*99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\color{blue}{\frac{\frac{1}{9}}{x}} + \left(-1\right)\right)\right)\right) \]
      6. metadata-eval99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right)\right) \]
      7. metadata-eval99.1%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right)\right) \]
    3. Simplified99.1%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)\right)} \]
    4. Step-by-step derivation
      1. associate-*r*99.3%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)} \]
      2. distribute-lft-in99.3%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right)} \]
      3. *-commutative99.3%

        \[\leadsto \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      4. metadata-eval99.3%

        \[\leadsto \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      5. sqrt-prod99.7%

        \[\leadsto \color{blue}{\sqrt{x \cdot 9}} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      6. *-commutative99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      7. metadata-eval99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      8. sqrt-prod99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\sqrt{x \cdot 9}} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      9. +-commutative99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \color{blue}{\left(-1 + \frac{0.1111111111111111}{x}\right)} \]
    5. Applied egg-rr99.7%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \left(-1 + \frac{0.1111111111111111}{x}\right)} \]
    6. Step-by-step derivation
      1. distribute-lft-out99.7%

        \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y + \left(-1 + \frac{0.1111111111111111}{x}\right)\right)} \]
      2. associate-+r+99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(\left(y + -1\right) + \frac{0.1111111111111111}{x}\right)} \]
      3. metadata-eval99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\left(y + \color{blue}{\left(-1\right)}\right) + \frac{0.1111111111111111}{x}\right) \]
      4. sub-neg99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\color{blue}{\left(y - 1\right)} + \frac{0.1111111111111111}{x}\right) \]
      5. associate-+l-99.7%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
    7. Simplified99.7%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
    8. Taylor expanded in y around inf 78.3%

      \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{y} \]

    if 6.10000000000000036e-24 < x < 9.2000000000000003e-4

    1. Initial program 99.5%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. *-commutative99.5%

        \[\leadsto \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
      2. associate-*l*99.2%

        \[\leadsto \color{blue}{\sqrt{x} \cdot \left(3 \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      3. associate--l+99.2%

        \[\leadsto \sqrt{x} \cdot \left(3 \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      4. distribute-lft-in99.3%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\left(3 \cdot y + 3 \cdot \left(\frac{1}{x \cdot 9} - 1\right)\right)} \]
      5. fma-def99.3%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\mathsf{fma}\left(3, y, 3 \cdot \left(\frac{1}{x \cdot 9} - 1\right)\right)} \]
      6. sub-neg99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right) \]
      7. +-commutative99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{\left(\left(-1\right) + \frac{1}{x \cdot 9}\right)}\right) \]
      8. distribute-lft-in99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, \color{blue}{3 \cdot \left(-1\right) + 3 \cdot \frac{1}{x \cdot 9}}\right) \]
      9. metadata-eval99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{-1} + 3 \cdot \frac{1}{x \cdot 9}\right) \]
      10. metadata-eval99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, \color{blue}{-3} + 3 \cdot \frac{1}{x \cdot 9}\right) \]
      11. *-commutative99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + 3 \cdot \frac{1}{\color{blue}{9 \cdot x}}\right) \]
      12. associate-/r*99.2%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + 3 \cdot \color{blue}{\frac{\frac{1}{9}}{x}}\right) \]
      13. associate-*r/99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \color{blue}{\frac{3 \cdot \frac{1}{9}}{x}}\right) \]
      14. metadata-eval99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{3 \cdot \color{blue}{0.1111111111111111}}{x}\right) \]
      15. metadata-eval99.3%

        \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{\color{blue}{0.3333333333333333}}{x}\right) \]
    3. Simplified99.3%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{0.3333333333333333}{x}\right)} \]
    4. Taylor expanded in y around 0 73.7%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(0.3333333333333333 \cdot \frac{1}{x} - 3\right)} \]
    5. Step-by-step derivation
      1. sub-neg73.7%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{x} + \left(-3\right)\right)} \]
      2. associate-*r/73.9%

        \[\leadsto \sqrt{x} \cdot \left(\color{blue}{\frac{0.3333333333333333 \cdot 1}{x}} + \left(-3\right)\right) \]
      3. metadata-eval73.9%

        \[\leadsto \sqrt{x} \cdot \left(\frac{\color{blue}{0.3333333333333333}}{x} + \left(-3\right)\right) \]
      4. metadata-eval73.9%

        \[\leadsto \sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \color{blue}{-3}\right) \]
    6. Simplified73.9%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)} \]

    if 9.2000000000000003e-4 < x

    1. Initial program 99.3%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. associate-*l*99.4%

        \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      2. associate--l+99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      3. sub-neg99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right)\right) \]
      4. *-commutative99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{1}{\color{blue}{9 \cdot x}} + \left(-1\right)\right)\right)\right) \]
      5. associate-/r*99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\color{blue}{\frac{\frac{1}{9}}{x}} + \left(-1\right)\right)\right)\right) \]
      6. metadata-eval99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right)\right) \]
      7. metadata-eval99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right)\right) \]
    3. Simplified99.4%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)\right)} \]
    4. Step-by-step derivation
      1. associate-*r*99.3%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)} \]
      2. distribute-lft-in99.3%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right)} \]
      3. *-commutative99.3%

        \[\leadsto \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      4. metadata-eval99.3%

        \[\leadsto \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      5. sqrt-prod99.4%

        \[\leadsto \color{blue}{\sqrt{x \cdot 9}} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      6. *-commutative99.4%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      7. metadata-eval99.4%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      8. sqrt-prod99.6%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\sqrt{x \cdot 9}} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      9. +-commutative99.6%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \color{blue}{\left(-1 + \frac{0.1111111111111111}{x}\right)} \]
    5. Applied egg-rr99.6%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \left(-1 + \frac{0.1111111111111111}{x}\right)} \]
    6. Step-by-step derivation
      1. distribute-lft-out99.6%

        \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y + \left(-1 + \frac{0.1111111111111111}{x}\right)\right)} \]
      2. associate-+r+99.6%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(\left(y + -1\right) + \frac{0.1111111111111111}{x}\right)} \]
      3. metadata-eval99.6%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\left(y + \color{blue}{\left(-1\right)}\right) + \frac{0.1111111111111111}{x}\right) \]
      4. sub-neg99.6%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\color{blue}{\left(y - 1\right)} + \frac{0.1111111111111111}{x}\right) \]
      5. associate-+l-99.6%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
    7. Simplified99.6%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
    8. Taylor expanded in x around inf 99.0%

      \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(y - 1\right)} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification88.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq 6 \cdot 10^{-42}:\\ \;\;\;\;\frac{3}{x} \cdot \frac{\sqrt{x}}{9}\\ \mathbf{elif}\;x \leq 6.1 \cdot 10^{-24}:\\ \;\;\;\;\sqrt{x \cdot 9} \cdot y\\ \mathbf{elif}\;x \leq 0.00092:\\ \;\;\;\;\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x \cdot 9} \cdot \left(y + -1\right)\\ \end{array} \]

Alternative 12: 99.4% accurate, 1.0× speedup?

\[\begin{array}{l} \\ 3 \cdot \left(\left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right) \cdot \sqrt{x}\right) \end{array} \]
(FPCore (x y)
 :precision binary64
 (* 3.0 (* (+ y (+ (/ 0.1111111111111111 x) -1.0)) (sqrt x))))
double code(double x, double y) {
	return 3.0 * ((y + ((0.1111111111111111 / x) + -1.0)) * sqrt(x));
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = 3.0d0 * ((y + ((0.1111111111111111d0 / x) + (-1.0d0))) * sqrt(x))
end function
public static double code(double x, double y) {
	return 3.0 * ((y + ((0.1111111111111111 / x) + -1.0)) * Math.sqrt(x));
}
def code(x, y):
	return 3.0 * ((y + ((0.1111111111111111 / x) + -1.0)) * math.sqrt(x))
function code(x, y)
	return Float64(3.0 * Float64(Float64(y + Float64(Float64(0.1111111111111111 / x) + -1.0)) * sqrt(x)))
end
function tmp = code(x, y)
	tmp = 3.0 * ((y + ((0.1111111111111111 / x) + -1.0)) * sqrt(x));
end
code[x_, y_] := N[(3.0 * N[(N[(y + N[(N[(0.1111111111111111 / x), $MachinePrecision] + -1.0), $MachinePrecision]), $MachinePrecision] * N[Sqrt[x], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
3 \cdot \left(\left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right) \cdot \sqrt{x}\right)
\end{array}
Derivation
  1. Initial program 99.3%

    \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
  2. Step-by-step derivation
    1. associate-*l*99.3%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
    2. associate--l+99.3%

      \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
    3. sub-neg99.3%

      \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right)\right) \]
    4. *-commutative99.3%

      \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{1}{\color{blue}{9 \cdot x}} + \left(-1\right)\right)\right)\right) \]
    5. associate-/r*99.3%

      \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\color{blue}{\frac{\frac{1}{9}}{x}} + \left(-1\right)\right)\right)\right) \]
    6. metadata-eval99.3%

      \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right)\right) \]
    7. metadata-eval99.3%

      \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right)\right) \]
  3. Simplified99.3%

    \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)\right)} \]
  4. Final simplification99.3%

    \[\leadsto 3 \cdot \left(\left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right) \cdot \sqrt{x}\right) \]

Alternative 13: 99.4% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \sqrt{x} \cdot \left(y \cdot 3 + \left(\frac{0.3333333333333333}{x} + -3\right)\right) \end{array} \]
(FPCore (x y)
 :precision binary64
 (* (sqrt x) (+ (* y 3.0) (+ (/ 0.3333333333333333 x) -3.0))))
double code(double x, double y) {
	return sqrt(x) * ((y * 3.0) + ((0.3333333333333333 / x) + -3.0));
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = sqrt(x) * ((y * 3.0d0) + ((0.3333333333333333d0 / x) + (-3.0d0)))
end function
public static double code(double x, double y) {
	return Math.sqrt(x) * ((y * 3.0) + ((0.3333333333333333 / x) + -3.0));
}
def code(x, y):
	return math.sqrt(x) * ((y * 3.0) + ((0.3333333333333333 / x) + -3.0))
function code(x, y)
	return Float64(sqrt(x) * Float64(Float64(y * 3.0) + Float64(Float64(0.3333333333333333 / x) + -3.0)))
end
function tmp = code(x, y)
	tmp = sqrt(x) * ((y * 3.0) + ((0.3333333333333333 / x) + -3.0));
end
code[x_, y_] := N[(N[Sqrt[x], $MachinePrecision] * N[(N[(y * 3.0), $MachinePrecision] + N[(N[(0.3333333333333333 / x), $MachinePrecision] + -3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\sqrt{x} \cdot \left(y \cdot 3 + \left(\frac{0.3333333333333333}{x} + -3\right)\right)
\end{array}
Derivation
  1. Initial program 99.3%

    \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
  2. Step-by-step derivation
    1. *-commutative99.3%

      \[\leadsto \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. associate-*l*99.3%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(3 \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
    3. associate--l+99.3%

      \[\leadsto \sqrt{x} \cdot \left(3 \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
    4. distribute-lft-in99.3%

      \[\leadsto \sqrt{x} \cdot \color{blue}{\left(3 \cdot y + 3 \cdot \left(\frac{1}{x \cdot 9} - 1\right)\right)} \]
    5. fma-def99.3%

      \[\leadsto \sqrt{x} \cdot \color{blue}{\mathsf{fma}\left(3, y, 3 \cdot \left(\frac{1}{x \cdot 9} - 1\right)\right)} \]
    6. sub-neg99.3%

      \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right) \]
    7. +-commutative99.3%

      \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{\left(\left(-1\right) + \frac{1}{x \cdot 9}\right)}\right) \]
    8. distribute-lft-in99.3%

      \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, \color{blue}{3 \cdot \left(-1\right) + 3 \cdot \frac{1}{x \cdot 9}}\right) \]
    9. metadata-eval99.3%

      \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, 3 \cdot \color{blue}{-1} + 3 \cdot \frac{1}{x \cdot 9}\right) \]
    10. metadata-eval99.3%

      \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, \color{blue}{-3} + 3 \cdot \frac{1}{x \cdot 9}\right) \]
    11. *-commutative99.3%

      \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + 3 \cdot \frac{1}{\color{blue}{9 \cdot x}}\right) \]
    12. associate-/r*99.3%

      \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + 3 \cdot \color{blue}{\frac{\frac{1}{9}}{x}}\right) \]
    13. associate-*r/99.4%

      \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \color{blue}{\frac{3 \cdot \frac{1}{9}}{x}}\right) \]
    14. metadata-eval99.4%

      \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{3 \cdot \color{blue}{0.1111111111111111}}{x}\right) \]
    15. metadata-eval99.4%

      \[\leadsto \sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{\color{blue}{0.3333333333333333}}{x}\right) \]
  3. Simplified99.4%

    \[\leadsto \color{blue}{\sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{0.3333333333333333}{x}\right)} \]
  4. Step-by-step derivation
    1. fma-udef99.3%

      \[\leadsto \sqrt{x} \cdot \color{blue}{\left(3 \cdot y + \left(-3 + \frac{0.3333333333333333}{x}\right)\right)} \]
    2. +-commutative99.3%

      \[\leadsto \sqrt{x} \cdot \left(3 \cdot y + \color{blue}{\left(\frac{0.3333333333333333}{x} + -3\right)}\right) \]
  5. Applied egg-rr99.3%

    \[\leadsto \sqrt{x} \cdot \color{blue}{\left(3 \cdot y + \left(\frac{0.3333333333333333}{x} + -3\right)\right)} \]
  6. Final simplification99.3%

    \[\leadsto \sqrt{x} \cdot \left(y \cdot 3 + \left(\frac{0.3333333333333333}{x} + -3\right)\right) \]

Alternative 14: 61.8% accurate, 1.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq 0.112:\\ \;\;\;\;0.3333333333333333 \cdot \frac{\sqrt{x}}{x}\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot -3\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (<= x 0.112) (* 0.3333333333333333 (/ (sqrt x) x)) (* (sqrt x) -3.0)))
double code(double x, double y) {
	double tmp;
	if (x <= 0.112) {
		tmp = 0.3333333333333333 * (sqrt(x) / x);
	} else {
		tmp = sqrt(x) * -3.0;
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if (x <= 0.112d0) then
        tmp = 0.3333333333333333d0 * (sqrt(x) / x)
    else
        tmp = sqrt(x) * (-3.0d0)
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if (x <= 0.112) {
		tmp = 0.3333333333333333 * (Math.sqrt(x) / x);
	} else {
		tmp = Math.sqrt(x) * -3.0;
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if x <= 0.112:
		tmp = 0.3333333333333333 * (math.sqrt(x) / x)
	else:
		tmp = math.sqrt(x) * -3.0
	return tmp
function code(x, y)
	tmp = 0.0
	if (x <= 0.112)
		tmp = Float64(0.3333333333333333 * Float64(sqrt(x) / x));
	else
		tmp = Float64(sqrt(x) * -3.0);
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if (x <= 0.112)
		tmp = 0.3333333333333333 * (sqrt(x) / x);
	else
		tmp = sqrt(x) * -3.0;
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[LessEqual[x, 0.112], N[(0.3333333333333333 * N[(N[Sqrt[x], $MachinePrecision] / x), $MachinePrecision]), $MachinePrecision], N[(N[Sqrt[x], $MachinePrecision] * -3.0), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq 0.112:\\
\;\;\;\;0.3333333333333333 \cdot \frac{\sqrt{x}}{x}\\

\mathbf{else}:\\
\;\;\;\;\sqrt{x} \cdot -3\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < 0.112000000000000002

    1. Initial program 99.2%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. associate-*l*99.2%

        \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      2. associate--l+99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      3. sub-neg99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right)\right) \]
      4. *-commutative99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{1}{\color{blue}{9 \cdot x}} + \left(-1\right)\right)\right)\right) \]
      5. associate-/r*99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\color{blue}{\frac{\frac{1}{9}}{x}} + \left(-1\right)\right)\right)\right) \]
      6. metadata-eval99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right)\right) \]
      7. metadata-eval99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right)\right) \]
    3. Simplified99.2%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)\right)} \]
    4. Taylor expanded in x around 0 74.2%

      \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\frac{0.1111111111111111}{x}}\right) \]
    5. Step-by-step derivation
      1. associate-*r*74.4%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \frac{0.1111111111111111}{x}} \]
      2. clear-num74.4%

        \[\leadsto \left(3 \cdot \sqrt{x}\right) \cdot \color{blue}{\frac{1}{\frac{x}{0.1111111111111111}}} \]
      3. un-div-inv74.4%

        \[\leadsto \color{blue}{\frac{3 \cdot \sqrt{x}}{\frac{x}{0.1111111111111111}}} \]
      4. div-inv74.4%

        \[\leadsto \frac{3 \cdot \sqrt{x}}{\color{blue}{x \cdot \frac{1}{0.1111111111111111}}} \]
      5. metadata-eval74.4%

        \[\leadsto \frac{3 \cdot \sqrt{x}}{x \cdot \color{blue}{9}} \]
    6. Applied egg-rr74.4%

      \[\leadsto \color{blue}{\frac{3 \cdot \sqrt{x}}{x \cdot 9}} \]
    7. Step-by-step derivation
      1. *-commutative74.4%

        \[\leadsto \frac{3 \cdot \sqrt{x}}{\color{blue}{9 \cdot x}} \]
      2. times-frac74.4%

        \[\leadsto \color{blue}{\frac{3}{9} \cdot \frac{\sqrt{x}}{x}} \]
      3. metadata-eval74.4%

        \[\leadsto \color{blue}{0.3333333333333333} \cdot \frac{\sqrt{x}}{x} \]
    8. Simplified74.4%

      \[\leadsto \color{blue}{0.3333333333333333 \cdot \frac{\sqrt{x}}{x}} \]

    if 0.112000000000000002 < x

    1. Initial program 99.3%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. associate-*l*99.4%

        \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      2. associate--l+99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      3. sub-neg99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right)\right) \]
      4. *-commutative99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{1}{\color{blue}{9 \cdot x}} + \left(-1\right)\right)\right)\right) \]
      5. associate-/r*99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\color{blue}{\frac{\frac{1}{9}}{x}} + \left(-1\right)\right)\right)\right) \]
      6. metadata-eval99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right)\right) \]
      7. metadata-eval99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right)\right) \]
    3. Simplified99.4%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)\right)} \]
    4. Step-by-step derivation
      1. associate-*r*99.3%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)} \]
      2. distribute-lft-in99.3%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right)} \]
      3. *-commutative99.3%

        \[\leadsto \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      4. metadata-eval99.3%

        \[\leadsto \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      5. sqrt-prod99.4%

        \[\leadsto \color{blue}{\sqrt{x \cdot 9}} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      6. *-commutative99.4%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      7. metadata-eval99.4%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      8. sqrt-prod99.6%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\sqrt{x \cdot 9}} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      9. +-commutative99.6%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \color{blue}{\left(-1 + \frac{0.1111111111111111}{x}\right)} \]
    5. Applied egg-rr99.6%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \left(-1 + \frac{0.1111111111111111}{x}\right)} \]
    6. Step-by-step derivation
      1. distribute-lft-out99.6%

        \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y + \left(-1 + \frac{0.1111111111111111}{x}\right)\right)} \]
      2. associate-+r+99.6%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(\left(y + -1\right) + \frac{0.1111111111111111}{x}\right)} \]
      3. metadata-eval99.6%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\left(y + \color{blue}{\left(-1\right)}\right) + \frac{0.1111111111111111}{x}\right) \]
      4. sub-neg99.6%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\color{blue}{\left(y - 1\right)} + \frac{0.1111111111111111}{x}\right) \]
      5. associate-+l-99.6%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
    7. Simplified99.6%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
    8. Taylor expanded in x around inf 99.0%

      \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(y - 1\right)} \]
    9. Taylor expanded in y around 0 43.6%

      \[\leadsto \color{blue}{-3 \cdot \sqrt{x}} \]
    10. Step-by-step derivation
      1. *-commutative43.6%

        \[\leadsto \color{blue}{\sqrt{x} \cdot -3} \]
    11. Simplified43.6%

      \[\leadsto \color{blue}{\sqrt{x} \cdot -3} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification60.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq 0.112:\\ \;\;\;\;0.3333333333333333 \cdot \frac{\sqrt{x}}{x}\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot -3\\ \end{array} \]

Alternative 15: 26.5% accurate, 1.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq 0.112:\\ \;\;\;\;\sqrt{x \cdot 9}\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot -3\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (<= x 0.112) (sqrt (* x 9.0)) (* (sqrt x) -3.0)))
double code(double x, double y) {
	double tmp;
	if (x <= 0.112) {
		tmp = sqrt((x * 9.0));
	} else {
		tmp = sqrt(x) * -3.0;
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if (x <= 0.112d0) then
        tmp = sqrt((x * 9.0d0))
    else
        tmp = sqrt(x) * (-3.0d0)
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if (x <= 0.112) {
		tmp = Math.sqrt((x * 9.0));
	} else {
		tmp = Math.sqrt(x) * -3.0;
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if x <= 0.112:
		tmp = math.sqrt((x * 9.0))
	else:
		tmp = math.sqrt(x) * -3.0
	return tmp
function code(x, y)
	tmp = 0.0
	if (x <= 0.112)
		tmp = sqrt(Float64(x * 9.0));
	else
		tmp = Float64(sqrt(x) * -3.0);
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if (x <= 0.112)
		tmp = sqrt((x * 9.0));
	else
		tmp = sqrt(x) * -3.0;
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[LessEqual[x, 0.112], N[Sqrt[N[(x * 9.0), $MachinePrecision]], $MachinePrecision], N[(N[Sqrt[x], $MachinePrecision] * -3.0), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq 0.112:\\
\;\;\;\;\sqrt{x \cdot 9}\\

\mathbf{else}:\\
\;\;\;\;\sqrt{x} \cdot -3\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < 0.112000000000000002

    1. Initial program 99.2%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. associate-*l*99.2%

        \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      2. associate--l+99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      3. sub-neg99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right)\right) \]
      4. *-commutative99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{1}{\color{blue}{9 \cdot x}} + \left(-1\right)\right)\right)\right) \]
      5. associate-/r*99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\color{blue}{\frac{\frac{1}{9}}{x}} + \left(-1\right)\right)\right)\right) \]
      6. metadata-eval99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right)\right) \]
      7. metadata-eval99.2%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right)\right) \]
    3. Simplified99.2%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)\right)} \]
    4. Step-by-step derivation
      1. associate-*r*99.2%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)} \]
      2. distribute-lft-in99.2%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right)} \]
      3. *-commutative99.2%

        \[\leadsto \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      4. metadata-eval99.2%

        \[\leadsto \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      5. sqrt-prod99.3%

        \[\leadsto \color{blue}{\sqrt{x \cdot 9}} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      6. *-commutative99.3%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      7. metadata-eval99.3%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      8. sqrt-prod99.4%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\sqrt{x \cdot 9}} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      9. +-commutative99.4%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \color{blue}{\left(-1 + \frac{0.1111111111111111}{x}\right)} \]
    5. Applied egg-rr99.4%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \left(-1 + \frac{0.1111111111111111}{x}\right)} \]
    6. Step-by-step derivation
      1. distribute-lft-out99.4%

        \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y + \left(-1 + \frac{0.1111111111111111}{x}\right)\right)} \]
      2. associate-+r+99.4%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(\left(y + -1\right) + \frac{0.1111111111111111}{x}\right)} \]
      3. metadata-eval99.4%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\left(y + \color{blue}{\left(-1\right)}\right) + \frac{0.1111111111111111}{x}\right) \]
      4. sub-neg99.4%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\color{blue}{\left(y - 1\right)} + \frac{0.1111111111111111}{x}\right) \]
      5. associate-+l-99.4%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
    7. Simplified99.4%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
    8. Taylor expanded in x around inf 23.7%

      \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(y - 1\right)} \]
    9. Taylor expanded in y around 0 1.7%

      \[\leadsto \color{blue}{-3 \cdot \sqrt{x}} \]
    10. Step-by-step derivation
      1. *-commutative1.7%

        \[\leadsto \color{blue}{\sqrt{x} \cdot -3} \]
    11. Simplified1.7%

      \[\leadsto \color{blue}{\sqrt{x} \cdot -3} \]
    12. Step-by-step derivation
      1. add-sqr-sqrt0.0%

        \[\leadsto \color{blue}{\sqrt{\sqrt{x} \cdot -3} \cdot \sqrt{\sqrt{x} \cdot -3}} \]
      2. sqrt-unprod4.7%

        \[\leadsto \color{blue}{\sqrt{\left(\sqrt{x} \cdot -3\right) \cdot \left(\sqrt{x} \cdot -3\right)}} \]
      3. swap-sqr4.7%

        \[\leadsto \sqrt{\color{blue}{\left(\sqrt{x} \cdot \sqrt{x}\right) \cdot \left(-3 \cdot -3\right)}} \]
      4. add-sqr-sqrt4.7%

        \[\leadsto \sqrt{\color{blue}{x} \cdot \left(-3 \cdot -3\right)} \]
      5. metadata-eval4.7%

        \[\leadsto \sqrt{x \cdot \color{blue}{9}} \]
    13. Applied egg-rr4.7%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9}} \]

    if 0.112000000000000002 < x

    1. Initial program 99.3%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. associate-*l*99.4%

        \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
      2. associate--l+99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
      3. sub-neg99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right)\right) \]
      4. *-commutative99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{1}{\color{blue}{9 \cdot x}} + \left(-1\right)\right)\right)\right) \]
      5. associate-/r*99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\color{blue}{\frac{\frac{1}{9}}{x}} + \left(-1\right)\right)\right)\right) \]
      6. metadata-eval99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right)\right) \]
      7. metadata-eval99.4%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right)\right) \]
    3. Simplified99.4%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)\right)} \]
    4. Step-by-step derivation
      1. associate-*r*99.3%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)} \]
      2. distribute-lft-in99.3%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right)} \]
      3. *-commutative99.3%

        \[\leadsto \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      4. metadata-eval99.3%

        \[\leadsto \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      5. sqrt-prod99.4%

        \[\leadsto \color{blue}{\sqrt{x \cdot 9}} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      6. *-commutative99.4%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      7. metadata-eval99.4%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      8. sqrt-prod99.6%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\sqrt{x \cdot 9}} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
      9. +-commutative99.6%

        \[\leadsto \sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \color{blue}{\left(-1 + \frac{0.1111111111111111}{x}\right)} \]
    5. Applied egg-rr99.6%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \left(-1 + \frac{0.1111111111111111}{x}\right)} \]
    6. Step-by-step derivation
      1. distribute-lft-out99.6%

        \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y + \left(-1 + \frac{0.1111111111111111}{x}\right)\right)} \]
      2. associate-+r+99.6%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(\left(y + -1\right) + \frac{0.1111111111111111}{x}\right)} \]
      3. metadata-eval99.6%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\left(y + \color{blue}{\left(-1\right)}\right) + \frac{0.1111111111111111}{x}\right) \]
      4. sub-neg99.6%

        \[\leadsto \sqrt{x \cdot 9} \cdot \left(\color{blue}{\left(y - 1\right)} + \frac{0.1111111111111111}{x}\right) \]
      5. associate-+l-99.6%

        \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
    7. Simplified99.6%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
    8. Taylor expanded in x around inf 99.0%

      \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(y - 1\right)} \]
    9. Taylor expanded in y around 0 43.6%

      \[\leadsto \color{blue}{-3 \cdot \sqrt{x}} \]
    10. Step-by-step derivation
      1. *-commutative43.6%

        \[\leadsto \color{blue}{\sqrt{x} \cdot -3} \]
    11. Simplified43.6%

      \[\leadsto \color{blue}{\sqrt{x} \cdot -3} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification21.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq 0.112:\\ \;\;\;\;\sqrt{x \cdot 9}\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot -3\\ \end{array} \]

Alternative 16: 3.4% accurate, 1.1× speedup?

\[\begin{array}{l} \\ \sqrt{x \cdot 9} \end{array} \]
(FPCore (x y) :precision binary64 (sqrt (* x 9.0)))
double code(double x, double y) {
	return sqrt((x * 9.0));
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = sqrt((x * 9.0d0))
end function
public static double code(double x, double y) {
	return Math.sqrt((x * 9.0));
}
def code(x, y):
	return math.sqrt((x * 9.0))
function code(x, y)
	return sqrt(Float64(x * 9.0))
end
function tmp = code(x, y)
	tmp = sqrt((x * 9.0));
end
code[x_, y_] := N[Sqrt[N[(x * 9.0), $MachinePrecision]], $MachinePrecision]
\begin{array}{l}

\\
\sqrt{x \cdot 9}
\end{array}
Derivation
  1. Initial program 99.3%

    \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
  2. Step-by-step derivation
    1. associate-*l*99.3%

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right)\right)} \]
    2. associate--l+99.3%

      \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(y + \left(\frac{1}{x \cdot 9} - 1\right)\right)}\right) \]
    3. sub-neg99.3%

      \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \color{blue}{\left(\frac{1}{x \cdot 9} + \left(-1\right)\right)}\right)\right) \]
    4. *-commutative99.3%

      \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{1}{\color{blue}{9 \cdot x}} + \left(-1\right)\right)\right)\right) \]
    5. associate-/r*99.3%

      \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\color{blue}{\frac{\frac{1}{9}}{x}} + \left(-1\right)\right)\right)\right) \]
    6. metadata-eval99.3%

      \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right)\right) \]
    7. metadata-eval99.3%

      \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right)\right) \]
  3. Simplified99.3%

    \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)\right)} \]
  4. Step-by-step derivation
    1. associate-*r*99.3%

      \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)} \]
    2. distribute-lft-in99.3%

      \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right)} \]
    3. *-commutative99.3%

      \[\leadsto \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
    4. metadata-eval99.3%

      \[\leadsto \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
    5. sqrt-prod99.3%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9}} \cdot y + \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
    6. *-commutative99.3%

      \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\left(\sqrt{x} \cdot 3\right)} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
    7. metadata-eval99.3%

      \[\leadsto \sqrt{x \cdot 9} \cdot y + \left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
    8. sqrt-prod99.5%

      \[\leadsto \sqrt{x \cdot 9} \cdot y + \color{blue}{\sqrt{x \cdot 9}} \cdot \left(\frac{0.1111111111111111}{x} + -1\right) \]
    9. +-commutative99.5%

      \[\leadsto \sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \color{blue}{\left(-1 + \frac{0.1111111111111111}{x}\right)} \]
  5. Applied egg-rr99.5%

    \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot y + \sqrt{x \cdot 9} \cdot \left(-1 + \frac{0.1111111111111111}{x}\right)} \]
  6. Step-by-step derivation
    1. distribute-lft-out99.5%

      \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y + \left(-1 + \frac{0.1111111111111111}{x}\right)\right)} \]
    2. associate-+r+99.5%

      \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(\left(y + -1\right) + \frac{0.1111111111111111}{x}\right)} \]
    3. metadata-eval99.5%

      \[\leadsto \sqrt{x \cdot 9} \cdot \left(\left(y + \color{blue}{\left(-1\right)}\right) + \frac{0.1111111111111111}{x}\right) \]
    4. sub-neg99.5%

      \[\leadsto \sqrt{x \cdot 9} \cdot \left(\color{blue}{\left(y - 1\right)} + \frac{0.1111111111111111}{x}\right) \]
    5. associate-+l-99.5%

      \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
  7. Simplified99.5%

    \[\leadsto \color{blue}{\sqrt{x \cdot 9} \cdot \left(y - \left(1 - \frac{0.1111111111111111}{x}\right)\right)} \]
  8. Taylor expanded in x around inf 56.7%

    \[\leadsto \sqrt{x \cdot 9} \cdot \color{blue}{\left(y - 1\right)} \]
  9. Taylor expanded in y around 0 20.1%

    \[\leadsto \color{blue}{-3 \cdot \sqrt{x}} \]
  10. Step-by-step derivation
    1. *-commutative20.1%

      \[\leadsto \color{blue}{\sqrt{x} \cdot -3} \]
  11. Simplified20.1%

    \[\leadsto \color{blue}{\sqrt{x} \cdot -3} \]
  12. Step-by-step derivation
    1. add-sqr-sqrt0.0%

      \[\leadsto \color{blue}{\sqrt{\sqrt{x} \cdot -3} \cdot \sqrt{\sqrt{x} \cdot -3}} \]
    2. sqrt-unprod3.7%

      \[\leadsto \color{blue}{\sqrt{\left(\sqrt{x} \cdot -3\right) \cdot \left(\sqrt{x} \cdot -3\right)}} \]
    3. swap-sqr3.7%

      \[\leadsto \sqrt{\color{blue}{\left(\sqrt{x} \cdot \sqrt{x}\right) \cdot \left(-3 \cdot -3\right)}} \]
    4. add-sqr-sqrt3.7%

      \[\leadsto \sqrt{\color{blue}{x} \cdot \left(-3 \cdot -3\right)} \]
    5. metadata-eval3.7%

      \[\leadsto \sqrt{x \cdot \color{blue}{9}} \]
  13. Applied egg-rr3.7%

    \[\leadsto \color{blue}{\sqrt{x \cdot 9}} \]
  14. Final simplification3.7%

    \[\leadsto \sqrt{x \cdot 9} \]

Developer target: 99.4% accurate, 0.5× speedup?

\[\begin{array}{l} \\ 3 \cdot \left(y \cdot \sqrt{x} + \left(\frac{1}{x \cdot 9} - 1\right) \cdot \sqrt{x}\right) \end{array} \]
(FPCore (x y)
 :precision binary64
 (* 3.0 (+ (* y (sqrt x)) (* (- (/ 1.0 (* x 9.0)) 1.0) (sqrt x)))))
double code(double x, double y) {
	return 3.0 * ((y * sqrt(x)) + (((1.0 / (x * 9.0)) - 1.0) * sqrt(x)));
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = 3.0d0 * ((y * sqrt(x)) + (((1.0d0 / (x * 9.0d0)) - 1.0d0) * sqrt(x)))
end function
public static double code(double x, double y) {
	return 3.0 * ((y * Math.sqrt(x)) + (((1.0 / (x * 9.0)) - 1.0) * Math.sqrt(x)));
}
def code(x, y):
	return 3.0 * ((y * math.sqrt(x)) + (((1.0 / (x * 9.0)) - 1.0) * math.sqrt(x)))
function code(x, y)
	return Float64(3.0 * Float64(Float64(y * sqrt(x)) + Float64(Float64(Float64(1.0 / Float64(x * 9.0)) - 1.0) * sqrt(x))))
end
function tmp = code(x, y)
	tmp = 3.0 * ((y * sqrt(x)) + (((1.0 / (x * 9.0)) - 1.0) * sqrt(x)));
end
code[x_, y_] := N[(3.0 * N[(N[(y * N[Sqrt[x], $MachinePrecision]), $MachinePrecision] + N[(N[(N[(1.0 / N[(x * 9.0), $MachinePrecision]), $MachinePrecision] - 1.0), $MachinePrecision] * N[Sqrt[x], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
3 \cdot \left(y \cdot \sqrt{x} + \left(\frac{1}{x \cdot 9} - 1\right) \cdot \sqrt{x}\right)
\end{array}

Reproduce

?
herbie shell --seed 2023271 
(FPCore (x y)
  :name "Numeric.SpecFunctions:incompleteGamma from math-functions-0.1.5.2, B"
  :precision binary64

  :herbie-target
  (* 3.0 (+ (* y (sqrt x)) (* (- (/ 1.0 (* x 9.0)) 1.0) (sqrt x))))

  (* (* 3.0 (sqrt x)) (- (+ y (/ 1.0 (* x 9.0))) 1.0)))