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

Percentage Accurate: 99.4% → 99.4%
Time: 10.2s
Alternatives: 12
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 12 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, 0.5× speedup?

\[\begin{array}{l} \\ \sqrt{x} \cdot \left(\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}\right) \end{array} \]
(FPCore (x y)
 :precision binary64
 (* (sqrt x) (- (fma 3.0 y -3.0) (/ -0.3333333333333333 x))))
double code(double x, double y) {
	return sqrt(x) * (fma(3.0, y, -3.0) - (-0.3333333333333333 / x));
}
function code(x, y)
	return Float64(sqrt(x) * Float64(fma(3.0, y, -3.0) - Float64(-0.3333333333333333 / x)))
end
code[x_, y_] := N[(N[Sqrt[x], $MachinePrecision] * N[(N[(3.0 * y + -3.0), $MachinePrecision] - N[(-0.3333333333333333 / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\sqrt{x} \cdot \left(\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}\right)
\end{array}
Derivation
  1. Initial program 99.5%

    \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
  2. Simplified99.5%

    \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}\right)} \]
  3. Final simplification99.5%

    \[\leadsto \sqrt{x} \cdot \left(\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}\right) \]

Alternative 2: 62.6% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := \sqrt{x} \cdot \frac{0.3333333333333333}{x}\\ \mathbf{if}\;y \leq -14.6:\\ \;\;\;\;3 \cdot \left(\sqrt{x} \cdot y\right)\\ \mathbf{elif}\;y \leq -6.5 \cdot 10^{-260}:\\ \;\;\;\;t_0\\ \mathbf{elif}\;y \leq 2.6 \cdot 10^{-29}:\\ \;\;\;\;\sqrt{x} \cdot -3\\ \mathbf{elif}\;y \leq 1.65 \cdot 10^{+38}:\\ \;\;\;\;t_0\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot \left(3 \cdot y\right)\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (let* ((t_0 (* (sqrt x) (/ 0.3333333333333333 x))))
   (if (<= y -14.6)
     (* 3.0 (* (sqrt x) y))
     (if (<= y -6.5e-260)
       t_0
       (if (<= y 2.6e-29)
         (* (sqrt x) -3.0)
         (if (<= y 1.65e+38) t_0 (* (sqrt x) (* 3.0 y))))))))
double code(double x, double y) {
	double t_0 = sqrt(x) * (0.3333333333333333 / x);
	double tmp;
	if (y <= -14.6) {
		tmp = 3.0 * (sqrt(x) * y);
	} else if (y <= -6.5e-260) {
		tmp = t_0;
	} else if (y <= 2.6e-29) {
		tmp = sqrt(x) * -3.0;
	} else if (y <= 1.65e+38) {
		tmp = t_0;
	} else {
		tmp = sqrt(x) * (3.0 * y);
	}
	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 (y <= (-14.6d0)) then
        tmp = 3.0d0 * (sqrt(x) * y)
    else if (y <= (-6.5d-260)) then
        tmp = t_0
    else if (y <= 2.6d-29) then
        tmp = sqrt(x) * (-3.0d0)
    else if (y <= 1.65d+38) then
        tmp = t_0
    else
        tmp = sqrt(x) * (3.0d0 * y)
    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 (y <= -14.6) {
		tmp = 3.0 * (Math.sqrt(x) * y);
	} else if (y <= -6.5e-260) {
		tmp = t_0;
	} else if (y <= 2.6e-29) {
		tmp = Math.sqrt(x) * -3.0;
	} else if (y <= 1.65e+38) {
		tmp = t_0;
	} else {
		tmp = Math.sqrt(x) * (3.0 * y);
	}
	return tmp;
}
def code(x, y):
	t_0 = math.sqrt(x) * (0.3333333333333333 / x)
	tmp = 0
	if y <= -14.6:
		tmp = 3.0 * (math.sqrt(x) * y)
	elif y <= -6.5e-260:
		tmp = t_0
	elif y <= 2.6e-29:
		tmp = math.sqrt(x) * -3.0
	elif y <= 1.65e+38:
		tmp = t_0
	else:
		tmp = math.sqrt(x) * (3.0 * y)
	return tmp
function code(x, y)
	t_0 = Float64(sqrt(x) * Float64(0.3333333333333333 / x))
	tmp = 0.0
	if (y <= -14.6)
		tmp = Float64(3.0 * Float64(sqrt(x) * y));
	elseif (y <= -6.5e-260)
		tmp = t_0;
	elseif (y <= 2.6e-29)
		tmp = Float64(sqrt(x) * -3.0);
	elseif (y <= 1.65e+38)
		tmp = t_0;
	else
		tmp = Float64(sqrt(x) * Float64(3.0 * y));
	end
	return tmp
end
function tmp_2 = code(x, y)
	t_0 = sqrt(x) * (0.3333333333333333 / x);
	tmp = 0.0;
	if (y <= -14.6)
		tmp = 3.0 * (sqrt(x) * y);
	elseif (y <= -6.5e-260)
		tmp = t_0;
	elseif (y <= 2.6e-29)
		tmp = sqrt(x) * -3.0;
	elseif (y <= 1.65e+38)
		tmp = t_0;
	else
		tmp = sqrt(x) * (3.0 * y);
	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[y, -14.6], N[(3.0 * N[(N[Sqrt[x], $MachinePrecision] * y), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, -6.5e-260], t$95$0, If[LessEqual[y, 2.6e-29], N[(N[Sqrt[x], $MachinePrecision] * -3.0), $MachinePrecision], If[LessEqual[y, 1.65e+38], t$95$0, N[(N[Sqrt[x], $MachinePrecision] * N[(3.0 * y), $MachinePrecision]), $MachinePrecision]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := \sqrt{x} \cdot \frac{0.3333333333333333}{x}\\
\mathbf{if}\;y \leq -14.6:\\
\;\;\;\;3 \cdot \left(\sqrt{x} \cdot y\right)\\

\mathbf{elif}\;y \leq -6.5 \cdot 10^{-260}:\\
\;\;\;\;t_0\\

\mathbf{elif}\;y \leq 2.6 \cdot 10^{-29}:\\
\;\;\;\;\sqrt{x} \cdot -3\\

\mathbf{elif}\;y \leq 1.65 \cdot 10^{+38}:\\
\;\;\;\;t_0\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if y < -14.5999999999999996

    1. Initial program 99.6%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Simplified99.6%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}\right)} \]
    3. Taylor expanded in y around inf 77.8%

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

    if -14.5999999999999996 < y < -6.50000000000000002e-260 or 2.6000000000000002e-29 < y < 1.65e38

    1. Initial program 99.3%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Simplified99.3%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}\right)} \]
    3. Taylor expanded in x around 0 57.2%

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

    if -6.50000000000000002e-260 < y < 2.6000000000000002e-29

    1. Initial program 99.4%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Simplified99.6%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}\right)} \]
    3. Taylor expanded in y around 0 99.6%

      \[\leadsto \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{x} - 3\right) \cdot \sqrt{x}} \]
    4. Step-by-step derivation
      1. *-commutative99.6%

        \[\leadsto \color{blue}{\sqrt{x} \cdot \left(0.3333333333333333 \cdot \frac{1}{x} - 3\right)} \]
      2. sub-neg99.6%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{x} + \left(-3\right)\right)} \]
      3. associate-*r/99.6%

        \[\leadsto \sqrt{x} \cdot \left(\color{blue}{\frac{0.3333333333333333 \cdot 1}{x}} + \left(-3\right)\right) \]
      4. metadata-eval99.6%

        \[\leadsto \sqrt{x} \cdot \left(\frac{\color{blue}{0.3333333333333333}}{x} + \left(-3\right)\right) \]
      5. metadata-eval99.6%

        \[\leadsto \sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \color{blue}{-3}\right) \]
    5. Simplified99.6%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)} \]
    6. Step-by-step derivation
      1. add-cube-cbrt98.1%

        \[\leadsto \color{blue}{\left(\sqrt[3]{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)} \cdot \sqrt[3]{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)}\right) \cdot \sqrt[3]{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)}} \]
      2. pow398.0%

        \[\leadsto \color{blue}{{\left(\sqrt[3]{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)}\right)}^{3}} \]
      3. +-commutative98.0%

        \[\leadsto {\left(\sqrt[3]{\sqrt{x} \cdot \color{blue}{\left(-3 + \frac{0.3333333333333333}{x}\right)}}\right)}^{3} \]
    7. Applied egg-rr98.0%

      \[\leadsto \color{blue}{{\left(\sqrt[3]{\sqrt{x} \cdot \left(-3 + \frac{0.3333333333333333}{x}\right)}\right)}^{3}} \]
    8. Taylor expanded in x around inf 60.4%

      \[\leadsto \color{blue}{-3 \cdot \sqrt{x}} \]
    9. Step-by-step derivation
      1. *-commutative60.4%

        \[\leadsto \color{blue}{\sqrt{x} \cdot -3} \]
    10. Simplified60.4%

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

    if 1.65e38 < y

    1. Initial program 99.6%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Simplified99.6%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}\right)} \]
    3. Taylor expanded in y around inf 79.3%

      \[\leadsto \color{blue}{3 \cdot \left(y \cdot \sqrt{x}\right)} \]
    4. Step-by-step derivation
      1. associate-*r*79.4%

        \[\leadsto \color{blue}{\left(3 \cdot y\right) \cdot \sqrt{x}} \]
      2. *-commutative79.4%

        \[\leadsto \color{blue}{\sqrt{x} \cdot \left(3 \cdot y\right)} \]
    5. Simplified79.4%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(3 \cdot y\right)} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification68.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -14.6:\\ \;\;\;\;3 \cdot \left(\sqrt{x} \cdot y\right)\\ \mathbf{elif}\;y \leq -6.5 \cdot 10^{-260}:\\ \;\;\;\;\sqrt{x} \cdot \frac{0.3333333333333333}{x}\\ \mathbf{elif}\;y \leq 2.6 \cdot 10^{-29}:\\ \;\;\;\;\sqrt{x} \cdot -3\\ \mathbf{elif}\;y \leq 1.65 \cdot 10^{+38}:\\ \;\;\;\;\sqrt{x} \cdot \frac{0.3333333333333333}{x}\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot \left(3 \cdot y\right)\\ \end{array} \]

Alternative 3: 62.6% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := \sqrt{x} \cdot \frac{0.3333333333333333}{x}\\ \mathbf{if}\;y \leq -14.6:\\ \;\;\;\;3 \cdot \left(\sqrt{x} \cdot y\right)\\ \mathbf{elif}\;y \leq -2.6 \cdot 10^{-259}:\\ \;\;\;\;t_0\\ \mathbf{elif}\;y \leq 3.2 \cdot 10^{-29}:\\ \;\;\;\;\sqrt{x} \cdot -3\\ \mathbf{elif}\;y \leq 1.65 \cdot 10^{+38}:\\ \;\;\;\;t_0\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(\sqrt{x} \cdot 3\right)\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (let* ((t_0 (* (sqrt x) (/ 0.3333333333333333 x))))
   (if (<= y -14.6)
     (* 3.0 (* (sqrt x) y))
     (if (<= y -2.6e-259)
       t_0
       (if (<= y 3.2e-29)
         (* (sqrt x) -3.0)
         (if (<= y 1.65e+38) t_0 (* y (* (sqrt x) 3.0))))))))
double code(double x, double y) {
	double t_0 = sqrt(x) * (0.3333333333333333 / x);
	double tmp;
	if (y <= -14.6) {
		tmp = 3.0 * (sqrt(x) * y);
	} else if (y <= -2.6e-259) {
		tmp = t_0;
	} else if (y <= 3.2e-29) {
		tmp = sqrt(x) * -3.0;
	} else if (y <= 1.65e+38) {
		tmp = t_0;
	} else {
		tmp = y * (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 (y <= (-14.6d0)) then
        tmp = 3.0d0 * (sqrt(x) * y)
    else if (y <= (-2.6d-259)) then
        tmp = t_0
    else if (y <= 3.2d-29) then
        tmp = sqrt(x) * (-3.0d0)
    else if (y <= 1.65d+38) then
        tmp = t_0
    else
        tmp = y * (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 (y <= -14.6) {
		tmp = 3.0 * (Math.sqrt(x) * y);
	} else if (y <= -2.6e-259) {
		tmp = t_0;
	} else if (y <= 3.2e-29) {
		tmp = Math.sqrt(x) * -3.0;
	} else if (y <= 1.65e+38) {
		tmp = t_0;
	} else {
		tmp = y * (Math.sqrt(x) * 3.0);
	}
	return tmp;
}
def code(x, y):
	t_0 = math.sqrt(x) * (0.3333333333333333 / x)
	tmp = 0
	if y <= -14.6:
		tmp = 3.0 * (math.sqrt(x) * y)
	elif y <= -2.6e-259:
		tmp = t_0
	elif y <= 3.2e-29:
		tmp = math.sqrt(x) * -3.0
	elif y <= 1.65e+38:
		tmp = t_0
	else:
		tmp = y * (math.sqrt(x) * 3.0)
	return tmp
function code(x, y)
	t_0 = Float64(sqrt(x) * Float64(0.3333333333333333 / x))
	tmp = 0.0
	if (y <= -14.6)
		tmp = Float64(3.0 * Float64(sqrt(x) * y));
	elseif (y <= -2.6e-259)
		tmp = t_0;
	elseif (y <= 3.2e-29)
		tmp = Float64(sqrt(x) * -3.0);
	elseif (y <= 1.65e+38)
		tmp = t_0;
	else
		tmp = Float64(y * 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 (y <= -14.6)
		tmp = 3.0 * (sqrt(x) * y);
	elseif (y <= -2.6e-259)
		tmp = t_0;
	elseif (y <= 3.2e-29)
		tmp = sqrt(x) * -3.0;
	elseif (y <= 1.65e+38)
		tmp = t_0;
	else
		tmp = y * (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[y, -14.6], N[(3.0 * N[(N[Sqrt[x], $MachinePrecision] * y), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, -2.6e-259], t$95$0, If[LessEqual[y, 3.2e-29], N[(N[Sqrt[x], $MachinePrecision] * -3.0), $MachinePrecision], If[LessEqual[y, 1.65e+38], t$95$0, N[(y * N[(N[Sqrt[x], $MachinePrecision] * 3.0), $MachinePrecision]), $MachinePrecision]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := \sqrt{x} \cdot \frac{0.3333333333333333}{x}\\
\mathbf{if}\;y \leq -14.6:\\
\;\;\;\;3 \cdot \left(\sqrt{x} \cdot y\right)\\

\mathbf{elif}\;y \leq -2.6 \cdot 10^{-259}:\\
\;\;\;\;t_0\\

\mathbf{elif}\;y \leq 3.2 \cdot 10^{-29}:\\
\;\;\;\;\sqrt{x} \cdot -3\\

\mathbf{elif}\;y \leq 1.65 \cdot 10^{+38}:\\
\;\;\;\;t_0\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if y < -14.5999999999999996

    1. Initial program 99.6%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Simplified99.6%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}\right)} \]
    3. Taylor expanded in y around inf 77.8%

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

    if -14.5999999999999996 < y < -2.60000000000000001e-259 or 3.2e-29 < y < 1.65e38

    1. Initial program 99.3%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Simplified99.3%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}\right)} \]
    3. Taylor expanded in x around 0 57.2%

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

    if -2.60000000000000001e-259 < y < 3.2e-29

    1. Initial program 99.4%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Simplified99.6%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}\right)} \]
    3. Taylor expanded in y around 0 99.6%

      \[\leadsto \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{x} - 3\right) \cdot \sqrt{x}} \]
    4. Step-by-step derivation
      1. *-commutative99.6%

        \[\leadsto \color{blue}{\sqrt{x} \cdot \left(0.3333333333333333 \cdot \frac{1}{x} - 3\right)} \]
      2. sub-neg99.6%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{x} + \left(-3\right)\right)} \]
      3. associate-*r/99.6%

        \[\leadsto \sqrt{x} \cdot \left(\color{blue}{\frac{0.3333333333333333 \cdot 1}{x}} + \left(-3\right)\right) \]
      4. metadata-eval99.6%

        \[\leadsto \sqrt{x} \cdot \left(\frac{\color{blue}{0.3333333333333333}}{x} + \left(-3\right)\right) \]
      5. metadata-eval99.6%

        \[\leadsto \sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \color{blue}{-3}\right) \]
    5. Simplified99.6%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)} \]
    6. Step-by-step derivation
      1. add-cube-cbrt98.1%

        \[\leadsto \color{blue}{\left(\sqrt[3]{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)} \cdot \sqrt[3]{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)}\right) \cdot \sqrt[3]{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)}} \]
      2. pow398.0%

        \[\leadsto \color{blue}{{\left(\sqrt[3]{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)}\right)}^{3}} \]
      3. +-commutative98.0%

        \[\leadsto {\left(\sqrt[3]{\sqrt{x} \cdot \color{blue}{\left(-3 + \frac{0.3333333333333333}{x}\right)}}\right)}^{3} \]
    7. Applied egg-rr98.0%

      \[\leadsto \color{blue}{{\left(\sqrt[3]{\sqrt{x} \cdot \left(-3 + \frac{0.3333333333333333}{x}\right)}\right)}^{3}} \]
    8. Taylor expanded in x around inf 60.4%

      \[\leadsto \color{blue}{-3 \cdot \sqrt{x}} \]
    9. Step-by-step derivation
      1. *-commutative60.4%

        \[\leadsto \color{blue}{\sqrt{x} \cdot -3} \]
    10. Simplified60.4%

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

    if 1.65e38 < y

    1. Initial program 99.6%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. +-commutative99.6%

        \[\leadsto \left(3 \cdot \sqrt{x}\right) \cdot \left(\color{blue}{\left(\frac{1}{x \cdot 9} + y\right)} - 1\right) \]
      2. associate--l+99.6%

        \[\leadsto \left(3 \cdot \sqrt{x}\right) \cdot \color{blue}{\left(\frac{1}{x \cdot 9} + \left(y - 1\right)\right)} \]
      3. distribute-rgt-in99.6%

        \[\leadsto \color{blue}{\frac{1}{x \cdot 9} \cdot \left(3 \cdot \sqrt{x}\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right)} \]
      4. remove-double-neg99.6%

        \[\leadsto \color{blue}{\left(-\left(-\frac{1}{x \cdot 9} \cdot \left(3 \cdot \sqrt{x}\right)\right)\right)} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      5. distribute-lft-neg-in99.6%

        \[\leadsto \left(-\color{blue}{\left(-\frac{1}{x \cdot 9}\right) \cdot \left(3 \cdot \sqrt{x}\right)}\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      6. distribute-rgt-neg-in99.6%

        \[\leadsto \color{blue}{\left(-\frac{1}{x \cdot 9}\right) \cdot \left(-3 \cdot \sqrt{x}\right)} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      7. mul-1-neg99.6%

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

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

        \[\leadsto \left(-\frac{1}{\color{blue}{9 \cdot x}}\right) \cdot \left(\left(-1\right) \cdot \left(3 \cdot \sqrt{x}\right)\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      10. associate-/r*99.6%

        \[\leadsto \left(-\color{blue}{\frac{\frac{1}{9}}{x}}\right) \cdot \left(\left(-1\right) \cdot \left(3 \cdot \sqrt{x}\right)\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      11. distribute-neg-frac99.6%

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

        \[\leadsto \frac{-\frac{1}{9}}{x} \cdot \color{blue}{\left(\left(3 \cdot \sqrt{x}\right) \cdot \left(-1\right)\right)} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      13. associate-/r/99.7%

        \[\leadsto \color{blue}{\frac{-\frac{1}{9}}{\frac{x}{\left(3 \cdot \sqrt{x}\right) \cdot \left(-1\right)}}} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      14. associate-/l/99.7%

        \[\leadsto \frac{-\frac{1}{9}}{\color{blue}{\frac{\frac{x}{-1}}{3 \cdot \sqrt{x}}}} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      15. associate-/r/99.6%

        \[\leadsto \color{blue}{\frac{-\frac{1}{9}}{\frac{x}{-1}} \cdot \left(3 \cdot \sqrt{x}\right)} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
    3. Simplified99.6%

      \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + \left(y - 1\right)\right)} \]
    4. Taylor expanded in y around inf 79.5%

      \[\leadsto \left(3 \cdot \sqrt{x}\right) \cdot \color{blue}{y} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification68.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -14.6:\\ \;\;\;\;3 \cdot \left(\sqrt{x} \cdot y\right)\\ \mathbf{elif}\;y \leq -2.6 \cdot 10^{-259}:\\ \;\;\;\;\sqrt{x} \cdot \frac{0.3333333333333333}{x}\\ \mathbf{elif}\;y \leq 3.2 \cdot 10^{-29}:\\ \;\;\;\;\sqrt{x} \cdot -3\\ \mathbf{elif}\;y \leq 1.65 \cdot 10^{+38}:\\ \;\;\;\;\sqrt{x} \cdot \frac{0.3333333333333333}{x}\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(\sqrt{x} \cdot 3\right)\\ \end{array} \]

Alternative 4: 86.6% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -11 \lor \neg \left(y \leq 1.65 \cdot 10^{+38}\right):\\ \;\;\;\;\left(\sqrt{x} \cdot 3\right) \cdot \left(y - 1\right)\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot \left(\frac{1}{x \cdot 3} - 3\right)\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (or (<= y -11.0) (not (<= y 1.65e+38)))
   (* (* (sqrt x) 3.0) (- y 1.0))
   (* (sqrt x) (- (/ 1.0 (* x 3.0)) 3.0))))
double code(double x, double y) {
	double tmp;
	if ((y <= -11.0) || !(y <= 1.65e+38)) {
		tmp = (sqrt(x) * 3.0) * (y - 1.0);
	} else {
		tmp = sqrt(x) * ((1.0 / (x * 3.0)) - 3.0);
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if ((y <= (-11.0d0)) .or. (.not. (y <= 1.65d+38))) then
        tmp = (sqrt(x) * 3.0d0) * (y - 1.0d0)
    else
        tmp = sqrt(x) * ((1.0d0 / (x * 3.0d0)) - 3.0d0)
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if ((y <= -11.0) || !(y <= 1.65e+38)) {
		tmp = (Math.sqrt(x) * 3.0) * (y - 1.0);
	} else {
		tmp = Math.sqrt(x) * ((1.0 / (x * 3.0)) - 3.0);
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if (y <= -11.0) or not (y <= 1.65e+38):
		tmp = (math.sqrt(x) * 3.0) * (y - 1.0)
	else:
		tmp = math.sqrt(x) * ((1.0 / (x * 3.0)) - 3.0)
	return tmp
function code(x, y)
	tmp = 0.0
	if ((y <= -11.0) || !(y <= 1.65e+38))
		tmp = Float64(Float64(sqrt(x) * 3.0) * Float64(y - 1.0));
	else
		tmp = Float64(sqrt(x) * Float64(Float64(1.0 / Float64(x * 3.0)) - 3.0));
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if ((y <= -11.0) || ~((y <= 1.65e+38)))
		tmp = (sqrt(x) * 3.0) * (y - 1.0);
	else
		tmp = sqrt(x) * ((1.0 / (x * 3.0)) - 3.0);
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[Or[LessEqual[y, -11.0], N[Not[LessEqual[y, 1.65e+38]], $MachinePrecision]], N[(N[(N[Sqrt[x], $MachinePrecision] * 3.0), $MachinePrecision] * N[(y - 1.0), $MachinePrecision]), $MachinePrecision], N[(N[Sqrt[x], $MachinePrecision] * N[(N[(1.0 / N[(x * 3.0), $MachinePrecision]), $MachinePrecision] - 3.0), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -11 \lor \neg \left(y \leq 1.65 \cdot 10^{+38}\right):\\
\;\;\;\;\left(\sqrt{x} \cdot 3\right) \cdot \left(y - 1\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -11 or 1.65e38 < y

    1. Initial program 99.6%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. +-commutative99.6%

        \[\leadsto \left(3 \cdot \sqrt{x}\right) \cdot \left(\color{blue}{\left(\frac{1}{x \cdot 9} + y\right)} - 1\right) \]
      2. associate--l+99.6%

        \[\leadsto \left(3 \cdot \sqrt{x}\right) \cdot \color{blue}{\left(\frac{1}{x \cdot 9} + \left(y - 1\right)\right)} \]
      3. distribute-rgt-in99.6%

        \[\leadsto \color{blue}{\frac{1}{x \cdot 9} \cdot \left(3 \cdot \sqrt{x}\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right)} \]
      4. remove-double-neg99.6%

        \[\leadsto \color{blue}{\left(-\left(-\frac{1}{x \cdot 9} \cdot \left(3 \cdot \sqrt{x}\right)\right)\right)} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      5. distribute-lft-neg-in99.6%

        \[\leadsto \left(-\color{blue}{\left(-\frac{1}{x \cdot 9}\right) \cdot \left(3 \cdot \sqrt{x}\right)}\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      6. distribute-rgt-neg-in99.6%

        \[\leadsto \color{blue}{\left(-\frac{1}{x \cdot 9}\right) \cdot \left(-3 \cdot \sqrt{x}\right)} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      7. mul-1-neg99.6%

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

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

        \[\leadsto \left(-\frac{1}{\color{blue}{9 \cdot x}}\right) \cdot \left(\left(-1\right) \cdot \left(3 \cdot \sqrt{x}\right)\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      10. associate-/r*99.6%

        \[\leadsto \left(-\color{blue}{\frac{\frac{1}{9}}{x}}\right) \cdot \left(\left(-1\right) \cdot \left(3 \cdot \sqrt{x}\right)\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      11. distribute-neg-frac99.6%

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

        \[\leadsto \frac{-\frac{1}{9}}{x} \cdot \color{blue}{\left(\left(3 \cdot \sqrt{x}\right) \cdot \left(-1\right)\right)} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      13. associate-/r/99.6%

        \[\leadsto \color{blue}{\frac{-\frac{1}{9}}{\frac{x}{\left(3 \cdot \sqrt{x}\right) \cdot \left(-1\right)}}} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      14. associate-/l/99.6%

        \[\leadsto \frac{-\frac{1}{9}}{\color{blue}{\frac{\frac{x}{-1}}{3 \cdot \sqrt{x}}}} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      15. associate-/r/99.6%

        \[\leadsto \color{blue}{\frac{-\frac{1}{9}}{\frac{x}{-1}} \cdot \left(3 \cdot \sqrt{x}\right)} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
    3. Simplified99.6%

      \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + \left(y - 1\right)\right)} \]
    4. Taylor expanded in x around inf 80.0%

      \[\leadsto \left(3 \cdot \sqrt{x}\right) \cdot \color{blue}{\left(y - 1\right)} \]

    if -11 < y < 1.65e38

    1. Initial program 99.4%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Simplified99.5%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}\right)} \]
    3. Taylor expanded in y around 0 96.9%

      \[\leadsto \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{x} - 3\right) \cdot \sqrt{x}} \]
    4. Step-by-step derivation
      1. div-inv96.9%

        \[\leadsto \left(\color{blue}{\frac{0.3333333333333333}{x}} - 3\right) \cdot \sqrt{x} \]
      2. clear-num96.8%

        \[\leadsto \left(\color{blue}{\frac{1}{\frac{x}{0.3333333333333333}}} - 3\right) \cdot \sqrt{x} \]
      3. div-inv96.9%

        \[\leadsto \left(\frac{1}{\color{blue}{x \cdot \frac{1}{0.3333333333333333}}} - 3\right) \cdot \sqrt{x} \]
      4. metadata-eval96.9%

        \[\leadsto \left(\frac{1}{x \cdot \color{blue}{3}} - 3\right) \cdot \sqrt{x} \]
    5. Applied egg-rr96.9%

      \[\leadsto \left(\color{blue}{\frac{1}{x \cdot 3}} - 3\right) \cdot \sqrt{x} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification88.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -11 \lor \neg \left(y \leq 1.65 \cdot 10^{+38}\right):\\ \;\;\;\;\left(\sqrt{x} \cdot 3\right) \cdot \left(y - 1\right)\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot \left(\frac{1}{x \cdot 3} - 3\right)\\ \end{array} \]

Alternative 5: 86.6% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -6.2 \lor \neg \left(y \leq 1.65 \cdot 10^{+38}\right):\\ \;\;\;\;\left(\sqrt{x} \cdot 3\right) \cdot \left(y - 1\right)\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot \left(-3 + \frac{0.3333333333333333}{x}\right)\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (or (<= y -6.2) (not (<= y 1.65e+38)))
   (* (* (sqrt x) 3.0) (- y 1.0))
   (* (sqrt x) (+ -3.0 (/ 0.3333333333333333 x)))))
double code(double x, double y) {
	double tmp;
	if ((y <= -6.2) || !(y <= 1.65e+38)) {
		tmp = (sqrt(x) * 3.0) * (y - 1.0);
	} else {
		tmp = sqrt(x) * (-3.0 + (0.3333333333333333 / x));
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if ((y <= (-6.2d0)) .or. (.not. (y <= 1.65d+38))) then
        tmp = (sqrt(x) * 3.0d0) * (y - 1.0d0)
    else
        tmp = sqrt(x) * ((-3.0d0) + (0.3333333333333333d0 / x))
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if ((y <= -6.2) || !(y <= 1.65e+38)) {
		tmp = (Math.sqrt(x) * 3.0) * (y - 1.0);
	} else {
		tmp = Math.sqrt(x) * (-3.0 + (0.3333333333333333 / x));
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if (y <= -6.2) or not (y <= 1.65e+38):
		tmp = (math.sqrt(x) * 3.0) * (y - 1.0)
	else:
		tmp = math.sqrt(x) * (-3.0 + (0.3333333333333333 / x))
	return tmp
function code(x, y)
	tmp = 0.0
	if ((y <= -6.2) || !(y <= 1.65e+38))
		tmp = Float64(Float64(sqrt(x) * 3.0) * Float64(y - 1.0));
	else
		tmp = Float64(sqrt(x) * Float64(-3.0 + Float64(0.3333333333333333 / x)));
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if ((y <= -6.2) || ~((y <= 1.65e+38)))
		tmp = (sqrt(x) * 3.0) * (y - 1.0);
	else
		tmp = sqrt(x) * (-3.0 + (0.3333333333333333 / x));
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[Or[LessEqual[y, -6.2], N[Not[LessEqual[y, 1.65e+38]], $MachinePrecision]], N[(N[(N[Sqrt[x], $MachinePrecision] * 3.0), $MachinePrecision] * N[(y - 1.0), $MachinePrecision]), $MachinePrecision], N[(N[Sqrt[x], $MachinePrecision] * N[(-3.0 + N[(0.3333333333333333 / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -6.2 \lor \neg \left(y \leq 1.65 \cdot 10^{+38}\right):\\
\;\;\;\;\left(\sqrt{x} \cdot 3\right) \cdot \left(y - 1\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -6.20000000000000018 or 1.65e38 < y

    1. Initial program 99.6%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. +-commutative99.6%

        \[\leadsto \left(3 \cdot \sqrt{x}\right) \cdot \left(\color{blue}{\left(\frac{1}{x \cdot 9} + y\right)} - 1\right) \]
      2. associate--l+99.6%

        \[\leadsto \left(3 \cdot \sqrt{x}\right) \cdot \color{blue}{\left(\frac{1}{x \cdot 9} + \left(y - 1\right)\right)} \]
      3. distribute-rgt-in99.6%

        \[\leadsto \color{blue}{\frac{1}{x \cdot 9} \cdot \left(3 \cdot \sqrt{x}\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right)} \]
      4. remove-double-neg99.6%

        \[\leadsto \color{blue}{\left(-\left(-\frac{1}{x \cdot 9} \cdot \left(3 \cdot \sqrt{x}\right)\right)\right)} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      5. distribute-lft-neg-in99.6%

        \[\leadsto \left(-\color{blue}{\left(-\frac{1}{x \cdot 9}\right) \cdot \left(3 \cdot \sqrt{x}\right)}\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      6. distribute-rgt-neg-in99.6%

        \[\leadsto \color{blue}{\left(-\frac{1}{x \cdot 9}\right) \cdot \left(-3 \cdot \sqrt{x}\right)} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      7. mul-1-neg99.6%

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

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

        \[\leadsto \left(-\frac{1}{\color{blue}{9 \cdot x}}\right) \cdot \left(\left(-1\right) \cdot \left(3 \cdot \sqrt{x}\right)\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      10. associate-/r*99.6%

        \[\leadsto \left(-\color{blue}{\frac{\frac{1}{9}}{x}}\right) \cdot \left(\left(-1\right) \cdot \left(3 \cdot \sqrt{x}\right)\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      11. distribute-neg-frac99.6%

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

        \[\leadsto \frac{-\frac{1}{9}}{x} \cdot \color{blue}{\left(\left(3 \cdot \sqrt{x}\right) \cdot \left(-1\right)\right)} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      13. associate-/r/99.6%

        \[\leadsto \color{blue}{\frac{-\frac{1}{9}}{\frac{x}{\left(3 \cdot \sqrt{x}\right) \cdot \left(-1\right)}}} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      14. associate-/l/99.6%

        \[\leadsto \frac{-\frac{1}{9}}{\color{blue}{\frac{\frac{x}{-1}}{3 \cdot \sqrt{x}}}} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      15. associate-/r/99.6%

        \[\leadsto \color{blue}{\frac{-\frac{1}{9}}{\frac{x}{-1}} \cdot \left(3 \cdot \sqrt{x}\right)} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
    3. Simplified99.6%

      \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + \left(y - 1\right)\right)} \]
    4. Taylor expanded in x around inf 80.0%

      \[\leadsto \left(3 \cdot \sqrt{x}\right) \cdot \color{blue}{\left(y - 1\right)} \]

    if -6.20000000000000018 < y < 1.65e38

    1. Initial program 99.4%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Simplified99.5%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}\right)} \]
    3. Taylor expanded in y around 0 96.9%

      \[\leadsto \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{x} - 3\right) \cdot \sqrt{x}} \]
    4. Step-by-step derivation
      1. *-commutative96.9%

        \[\leadsto \color{blue}{\sqrt{x} \cdot \left(0.3333333333333333 \cdot \frac{1}{x} - 3\right)} \]
      2. sub-neg96.9%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{x} + \left(-3\right)\right)} \]
      3. associate-*r/96.9%

        \[\leadsto \sqrt{x} \cdot \left(\color{blue}{\frac{0.3333333333333333 \cdot 1}{x}} + \left(-3\right)\right) \]
      4. metadata-eval96.9%

        \[\leadsto \sqrt{x} \cdot \left(\frac{\color{blue}{0.3333333333333333}}{x} + \left(-3\right)\right) \]
      5. metadata-eval96.9%

        \[\leadsto \sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \color{blue}{-3}\right) \]
    5. Simplified96.9%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification88.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -6.2 \lor \neg \left(y \leq 1.65 \cdot 10^{+38}\right):\\ \;\;\;\;\left(\sqrt{x} \cdot 3\right) \cdot \left(y - 1\right)\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot \left(-3 + \frac{0.3333333333333333}{x}\right)\\ \end{array} \]

Alternative 6: 86.4% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -14.6:\\ \;\;\;\;3 \cdot \left(\sqrt{x} \cdot y\right)\\ \mathbf{elif}\;y \leq 1.65 \cdot 10^{+38}:\\ \;\;\;\;\sqrt{x} \cdot \left(-3 + \frac{0.3333333333333333}{x}\right)\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(\sqrt{x} \cdot 3\right)\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (<= y -14.6)
   (* 3.0 (* (sqrt x) y))
   (if (<= y 1.65e+38)
     (* (sqrt x) (+ -3.0 (/ 0.3333333333333333 x)))
     (* y (* (sqrt x) 3.0)))))
double code(double x, double y) {
	double tmp;
	if (y <= -14.6) {
		tmp = 3.0 * (sqrt(x) * y);
	} else if (y <= 1.65e+38) {
		tmp = sqrt(x) * (-3.0 + (0.3333333333333333 / x));
	} else {
		tmp = y * (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 (y <= (-14.6d0)) then
        tmp = 3.0d0 * (sqrt(x) * y)
    else if (y <= 1.65d+38) then
        tmp = sqrt(x) * ((-3.0d0) + (0.3333333333333333d0 / x))
    else
        tmp = y * (sqrt(x) * 3.0d0)
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if (y <= -14.6) {
		tmp = 3.0 * (Math.sqrt(x) * y);
	} else if (y <= 1.65e+38) {
		tmp = Math.sqrt(x) * (-3.0 + (0.3333333333333333 / x));
	} else {
		tmp = y * (Math.sqrt(x) * 3.0);
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if y <= -14.6:
		tmp = 3.0 * (math.sqrt(x) * y)
	elif y <= 1.65e+38:
		tmp = math.sqrt(x) * (-3.0 + (0.3333333333333333 / x))
	else:
		tmp = y * (math.sqrt(x) * 3.0)
	return tmp
function code(x, y)
	tmp = 0.0
	if (y <= -14.6)
		tmp = Float64(3.0 * Float64(sqrt(x) * y));
	elseif (y <= 1.65e+38)
		tmp = Float64(sqrt(x) * Float64(-3.0 + Float64(0.3333333333333333 / x)));
	else
		tmp = Float64(y * Float64(sqrt(x) * 3.0));
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if (y <= -14.6)
		tmp = 3.0 * (sqrt(x) * y);
	elseif (y <= 1.65e+38)
		tmp = sqrt(x) * (-3.0 + (0.3333333333333333 / x));
	else
		tmp = y * (sqrt(x) * 3.0);
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[LessEqual[y, -14.6], N[(3.0 * N[(N[Sqrt[x], $MachinePrecision] * y), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 1.65e+38], N[(N[Sqrt[x], $MachinePrecision] * N[(-3.0 + N[(0.3333333333333333 / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(y * N[(N[Sqrt[x], $MachinePrecision] * 3.0), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -14.6:\\
\;\;\;\;3 \cdot \left(\sqrt{x} \cdot y\right)\\

\mathbf{elif}\;y \leq 1.65 \cdot 10^{+38}:\\
\;\;\;\;\sqrt{x} \cdot \left(-3 + \frac{0.3333333333333333}{x}\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -14.5999999999999996

    1. Initial program 99.6%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Simplified99.6%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}\right)} \]
    3. Taylor expanded in y around inf 77.8%

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

    if -14.5999999999999996 < y < 1.65e38

    1. Initial program 99.4%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Simplified99.5%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}\right)} \]
    3. Taylor expanded in y around 0 96.9%

      \[\leadsto \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{x} - 3\right) \cdot \sqrt{x}} \]
    4. Step-by-step derivation
      1. *-commutative96.9%

        \[\leadsto \color{blue}{\sqrt{x} \cdot \left(0.3333333333333333 \cdot \frac{1}{x} - 3\right)} \]
      2. sub-neg96.9%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{x} + \left(-3\right)\right)} \]
      3. associate-*r/96.9%

        \[\leadsto \sqrt{x} \cdot \left(\color{blue}{\frac{0.3333333333333333 \cdot 1}{x}} + \left(-3\right)\right) \]
      4. metadata-eval96.9%

        \[\leadsto \sqrt{x} \cdot \left(\frac{\color{blue}{0.3333333333333333}}{x} + \left(-3\right)\right) \]
      5. metadata-eval96.9%

        \[\leadsto \sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \color{blue}{-3}\right) \]
    5. Simplified96.9%

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

    if 1.65e38 < y

    1. Initial program 99.6%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. +-commutative99.6%

        \[\leadsto \left(3 \cdot \sqrt{x}\right) \cdot \left(\color{blue}{\left(\frac{1}{x \cdot 9} + y\right)} - 1\right) \]
      2. associate--l+99.6%

        \[\leadsto \left(3 \cdot \sqrt{x}\right) \cdot \color{blue}{\left(\frac{1}{x \cdot 9} + \left(y - 1\right)\right)} \]
      3. distribute-rgt-in99.6%

        \[\leadsto \color{blue}{\frac{1}{x \cdot 9} \cdot \left(3 \cdot \sqrt{x}\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right)} \]
      4. remove-double-neg99.6%

        \[\leadsto \color{blue}{\left(-\left(-\frac{1}{x \cdot 9} \cdot \left(3 \cdot \sqrt{x}\right)\right)\right)} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      5. distribute-lft-neg-in99.6%

        \[\leadsto \left(-\color{blue}{\left(-\frac{1}{x \cdot 9}\right) \cdot \left(3 \cdot \sqrt{x}\right)}\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      6. distribute-rgt-neg-in99.6%

        \[\leadsto \color{blue}{\left(-\frac{1}{x \cdot 9}\right) \cdot \left(-3 \cdot \sqrt{x}\right)} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      7. mul-1-neg99.6%

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

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

        \[\leadsto \left(-\frac{1}{\color{blue}{9 \cdot x}}\right) \cdot \left(\left(-1\right) \cdot \left(3 \cdot \sqrt{x}\right)\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      10. associate-/r*99.6%

        \[\leadsto \left(-\color{blue}{\frac{\frac{1}{9}}{x}}\right) \cdot \left(\left(-1\right) \cdot \left(3 \cdot \sqrt{x}\right)\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      11. distribute-neg-frac99.6%

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

        \[\leadsto \frac{-\frac{1}{9}}{x} \cdot \color{blue}{\left(\left(3 \cdot \sqrt{x}\right) \cdot \left(-1\right)\right)} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      13. associate-/r/99.7%

        \[\leadsto \color{blue}{\frac{-\frac{1}{9}}{\frac{x}{\left(3 \cdot \sqrt{x}\right) \cdot \left(-1\right)}}} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      14. associate-/l/99.7%

        \[\leadsto \frac{-\frac{1}{9}}{\color{blue}{\frac{\frac{x}{-1}}{3 \cdot \sqrt{x}}}} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      15. associate-/r/99.6%

        \[\leadsto \color{blue}{\frac{-\frac{1}{9}}{\frac{x}{-1}} \cdot \left(3 \cdot \sqrt{x}\right)} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
    3. Simplified99.6%

      \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + \left(y - 1\right)\right)} \]
    4. Taylor expanded in y around inf 79.5%

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

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -14.6:\\ \;\;\;\;3 \cdot \left(\sqrt{x} \cdot y\right)\\ \mathbf{elif}\;y \leq 1.65 \cdot 10^{+38}:\\ \;\;\;\;\sqrt{x} \cdot \left(-3 + \frac{0.3333333333333333}{x}\right)\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(\sqrt{x} \cdot 3\right)\\ \end{array} \]

Alternative 7: 86.6% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -3.5:\\ \;\;\;\;\sqrt{x} \cdot \left(3 \cdot y - 3\right)\\ \mathbf{elif}\;y \leq 1.65 \cdot 10^{+38}:\\ \;\;\;\;\sqrt{x} \cdot \left(-3 + \frac{0.3333333333333333}{x}\right)\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(\sqrt{x} \cdot 3\right)\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (<= y -3.5)
   (* (sqrt x) (- (* 3.0 y) 3.0))
   (if (<= y 1.65e+38)
     (* (sqrt x) (+ -3.0 (/ 0.3333333333333333 x)))
     (* y (* (sqrt x) 3.0)))))
double code(double x, double y) {
	double tmp;
	if (y <= -3.5) {
		tmp = sqrt(x) * ((3.0 * y) - 3.0);
	} else if (y <= 1.65e+38) {
		tmp = sqrt(x) * (-3.0 + (0.3333333333333333 / x));
	} else {
		tmp = y * (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 (y <= (-3.5d0)) then
        tmp = sqrt(x) * ((3.0d0 * y) - 3.0d0)
    else if (y <= 1.65d+38) then
        tmp = sqrt(x) * ((-3.0d0) + (0.3333333333333333d0 / x))
    else
        tmp = y * (sqrt(x) * 3.0d0)
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if (y <= -3.5) {
		tmp = Math.sqrt(x) * ((3.0 * y) - 3.0);
	} else if (y <= 1.65e+38) {
		tmp = Math.sqrt(x) * (-3.0 + (0.3333333333333333 / x));
	} else {
		tmp = y * (Math.sqrt(x) * 3.0);
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if y <= -3.5:
		tmp = math.sqrt(x) * ((3.0 * y) - 3.0)
	elif y <= 1.65e+38:
		tmp = math.sqrt(x) * (-3.0 + (0.3333333333333333 / x))
	else:
		tmp = y * (math.sqrt(x) * 3.0)
	return tmp
function code(x, y)
	tmp = 0.0
	if (y <= -3.5)
		tmp = Float64(sqrt(x) * Float64(Float64(3.0 * y) - 3.0));
	elseif (y <= 1.65e+38)
		tmp = Float64(sqrt(x) * Float64(-3.0 + Float64(0.3333333333333333 / x)));
	else
		tmp = Float64(y * Float64(sqrt(x) * 3.0));
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if (y <= -3.5)
		tmp = sqrt(x) * ((3.0 * y) - 3.0);
	elseif (y <= 1.65e+38)
		tmp = sqrt(x) * (-3.0 + (0.3333333333333333 / x));
	else
		tmp = y * (sqrt(x) * 3.0);
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[LessEqual[y, -3.5], N[(N[Sqrt[x], $MachinePrecision] * N[(N[(3.0 * y), $MachinePrecision] - 3.0), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 1.65e+38], N[(N[Sqrt[x], $MachinePrecision] * N[(-3.0 + N[(0.3333333333333333 / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(y * N[(N[Sqrt[x], $MachinePrecision] * 3.0), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -3.5:\\
\;\;\;\;\sqrt{x} \cdot \left(3 \cdot y - 3\right)\\

\mathbf{elif}\;y \leq 1.65 \cdot 10^{+38}:\\
\;\;\;\;\sqrt{x} \cdot \left(-3 + \frac{0.3333333333333333}{x}\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -3.5

    1. Initial program 99.6%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Simplified99.6%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}\right)} \]
    3. Taylor expanded in x around inf 80.4%

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

    if -3.5 < y < 1.65e38

    1. Initial program 99.4%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Simplified99.5%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}\right)} \]
    3. Taylor expanded in y around 0 96.9%

      \[\leadsto \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{x} - 3\right) \cdot \sqrt{x}} \]
    4. Step-by-step derivation
      1. *-commutative96.9%

        \[\leadsto \color{blue}{\sqrt{x} \cdot \left(0.3333333333333333 \cdot \frac{1}{x} - 3\right)} \]
      2. sub-neg96.9%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{x} + \left(-3\right)\right)} \]
      3. associate-*r/96.9%

        \[\leadsto \sqrt{x} \cdot \left(\color{blue}{\frac{0.3333333333333333 \cdot 1}{x}} + \left(-3\right)\right) \]
      4. metadata-eval96.9%

        \[\leadsto \sqrt{x} \cdot \left(\frac{\color{blue}{0.3333333333333333}}{x} + \left(-3\right)\right) \]
      5. metadata-eval96.9%

        \[\leadsto \sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \color{blue}{-3}\right) \]
    5. Simplified96.9%

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

    if 1.65e38 < y

    1. Initial program 99.6%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. +-commutative99.6%

        \[\leadsto \left(3 \cdot \sqrt{x}\right) \cdot \left(\color{blue}{\left(\frac{1}{x \cdot 9} + y\right)} - 1\right) \]
      2. associate--l+99.6%

        \[\leadsto \left(3 \cdot \sqrt{x}\right) \cdot \color{blue}{\left(\frac{1}{x \cdot 9} + \left(y - 1\right)\right)} \]
      3. distribute-rgt-in99.6%

        \[\leadsto \color{blue}{\frac{1}{x \cdot 9} \cdot \left(3 \cdot \sqrt{x}\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right)} \]
      4. remove-double-neg99.6%

        \[\leadsto \color{blue}{\left(-\left(-\frac{1}{x \cdot 9} \cdot \left(3 \cdot \sqrt{x}\right)\right)\right)} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      5. distribute-lft-neg-in99.6%

        \[\leadsto \left(-\color{blue}{\left(-\frac{1}{x \cdot 9}\right) \cdot \left(3 \cdot \sqrt{x}\right)}\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      6. distribute-rgt-neg-in99.6%

        \[\leadsto \color{blue}{\left(-\frac{1}{x \cdot 9}\right) \cdot \left(-3 \cdot \sqrt{x}\right)} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      7. mul-1-neg99.6%

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

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

        \[\leadsto \left(-\frac{1}{\color{blue}{9 \cdot x}}\right) \cdot \left(\left(-1\right) \cdot \left(3 \cdot \sqrt{x}\right)\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      10. associate-/r*99.6%

        \[\leadsto \left(-\color{blue}{\frac{\frac{1}{9}}{x}}\right) \cdot \left(\left(-1\right) \cdot \left(3 \cdot \sqrt{x}\right)\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      11. distribute-neg-frac99.6%

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

        \[\leadsto \frac{-\frac{1}{9}}{x} \cdot \color{blue}{\left(\left(3 \cdot \sqrt{x}\right) \cdot \left(-1\right)\right)} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      13. associate-/r/99.7%

        \[\leadsto \color{blue}{\frac{-\frac{1}{9}}{\frac{x}{\left(3 \cdot \sqrt{x}\right) \cdot \left(-1\right)}}} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      14. associate-/l/99.7%

        \[\leadsto \frac{-\frac{1}{9}}{\color{blue}{\frac{\frac{x}{-1}}{3 \cdot \sqrt{x}}}} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      15. associate-/r/99.6%

        \[\leadsto \color{blue}{\frac{-\frac{1}{9}}{\frac{x}{-1}} \cdot \left(3 \cdot \sqrt{x}\right)} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
    3. Simplified99.6%

      \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + \left(y - 1\right)\right)} \]
    4. Taylor expanded in y around inf 79.5%

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

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -3.5:\\ \;\;\;\;\sqrt{x} \cdot \left(3 \cdot y - 3\right)\\ \mathbf{elif}\;y \leq 1.65 \cdot 10^{+38}:\\ \;\;\;\;\sqrt{x} \cdot \left(-3 + \frac{0.3333333333333333}{x}\right)\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(\sqrt{x} \cdot 3\right)\\ \end{array} \]

Alternative 8: 99.4% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \sqrt{x} \cdot \left(3 \cdot y + \left(-3 + \frac{0.3333333333333333}{x}\right)\right) \end{array} \]
(FPCore (x y)
 :precision binary64
 (* (sqrt x) (+ (* 3.0 y) (+ -3.0 (/ 0.3333333333333333 x)))))
double code(double x, double y) {
	return sqrt(x) * ((3.0 * y) + (-3.0 + (0.3333333333333333 / x)));
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = sqrt(x) * ((3.0d0 * y) + ((-3.0d0) + (0.3333333333333333d0 / x)))
end function
public static double code(double x, double y) {
	return Math.sqrt(x) * ((3.0 * y) + (-3.0 + (0.3333333333333333 / x)));
}
def code(x, y):
	return math.sqrt(x) * ((3.0 * y) + (-3.0 + (0.3333333333333333 / x)))
function code(x, y)
	return Float64(sqrt(x) * Float64(Float64(3.0 * y) + Float64(-3.0 + Float64(0.3333333333333333 / x))))
end
function tmp = code(x, y)
	tmp = sqrt(x) * ((3.0 * y) + (-3.0 + (0.3333333333333333 / x)));
end
code[x_, y_] := N[(N[Sqrt[x], $MachinePrecision] * N[(N[(3.0 * y), $MachinePrecision] + N[(-3.0 + N[(0.3333333333333333 / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\sqrt{x} \cdot \left(3 \cdot y + \left(-3 + \frac{0.3333333333333333}{x}\right)\right)
\end{array}
Derivation
  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%

      \[\leadsto \left(3 \cdot \sqrt{x}\right) \cdot \left(\color{blue}{\left(\frac{1}{x \cdot 9} + y\right)} - 1\right) \]
    2. associate--l+99.5%

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

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

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

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

      \[\leadsto \left(3 \cdot \sqrt{x}\right) \cdot \left(y - 1\right) + \color{blue}{\left(\frac{1}{x \cdot 9} \cdot 3\right) \cdot \sqrt{x}} \]
    7. cancel-sign-sub99.5%

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

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

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

      \[\leadsto \color{blue}{\left(3 \cdot \left(y - 1\right)\right)} \cdot \sqrt{x} - \left(-\frac{1}{x \cdot 9} \cdot 3\right) \cdot \sqrt{x} \]
    11. distribute-rgt-out--99.5%

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

      \[\leadsto \sqrt{x} \cdot \left(3 \cdot \left(y - 1\right) - \color{blue}{\left(-\frac{1}{x \cdot 9}\right) \cdot 3}\right) \]
    13. cancel-sign-sub99.5%

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

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

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

      \[\leadsto \sqrt{x} \cdot \color{blue}{\left(3 \cdot \left(\frac{1}{x \cdot 9} + \left(y - 1\right)\right)\right)} \]
  3. Simplified99.5%

    \[\leadsto \color{blue}{\sqrt{x} \cdot \mathsf{fma}\left(3, y, -3 + \frac{0.3333333333333333}{x}\right)} \]
  4. Step-by-step derivation
    1. fma-udef99.5%

      \[\leadsto \sqrt{x} \cdot \color{blue}{\left(3 \cdot y + \left(-3 + \frac{0.3333333333333333}{x}\right)\right)} \]
  5. Applied egg-rr99.5%

    \[\leadsto \sqrt{x} \cdot \color{blue}{\left(3 \cdot y + \left(-3 + \frac{0.3333333333333333}{x}\right)\right)} \]
  6. Final simplification99.5%

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

Alternative 9: 61.4% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -7.4 \cdot 10^{-22} \lor \neg \left(y \leq 1\right):\\ \;\;\;\;3 \cdot \left(\sqrt{x} \cdot y\right)\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot -3\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (or (<= y -7.4e-22) (not (<= y 1.0)))
   (* 3.0 (* (sqrt x) y))
   (* (sqrt x) -3.0)))
double code(double x, double y) {
	double tmp;
	if ((y <= -7.4e-22) || !(y <= 1.0)) {
		tmp = 3.0 * (sqrt(x) * y);
	} 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 ((y <= (-7.4d-22)) .or. (.not. (y <= 1.0d0))) then
        tmp = 3.0d0 * (sqrt(x) * y)
    else
        tmp = sqrt(x) * (-3.0d0)
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if ((y <= -7.4e-22) || !(y <= 1.0)) {
		tmp = 3.0 * (Math.sqrt(x) * y);
	} else {
		tmp = Math.sqrt(x) * -3.0;
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if (y <= -7.4e-22) or not (y <= 1.0):
		tmp = 3.0 * (math.sqrt(x) * y)
	else:
		tmp = math.sqrt(x) * -3.0
	return tmp
function code(x, y)
	tmp = 0.0
	if ((y <= -7.4e-22) || !(y <= 1.0))
		tmp = Float64(3.0 * Float64(sqrt(x) * y));
	else
		tmp = Float64(sqrt(x) * -3.0);
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if ((y <= -7.4e-22) || ~((y <= 1.0)))
		tmp = 3.0 * (sqrt(x) * y);
	else
		tmp = sqrt(x) * -3.0;
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[Or[LessEqual[y, -7.4e-22], N[Not[LessEqual[y, 1.0]], $MachinePrecision]], N[(3.0 * N[(N[Sqrt[x], $MachinePrecision] * y), $MachinePrecision]), $MachinePrecision], N[(N[Sqrt[x], $MachinePrecision] * -3.0), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -7.4 \cdot 10^{-22} \lor \neg \left(y \leq 1\right):\\
\;\;\;\;3 \cdot \left(\sqrt{x} \cdot y\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -7.4e-22 or 1 < y

    1. Initial program 99.6%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Simplified99.6%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}\right)} \]
    3. Taylor expanded in y around inf 73.6%

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

    if -7.4e-22 < y < 1

    1. Initial program 99.4%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Simplified99.5%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}\right)} \]
    3. Taylor expanded in y around 0 98.4%

      \[\leadsto \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{x} - 3\right) \cdot \sqrt{x}} \]
    4. Step-by-step derivation
      1. *-commutative98.4%

        \[\leadsto \color{blue}{\sqrt{x} \cdot \left(0.3333333333333333 \cdot \frac{1}{x} - 3\right)} \]
      2. sub-neg98.4%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{x} + \left(-3\right)\right)} \]
      3. associate-*r/98.4%

        \[\leadsto \sqrt{x} \cdot \left(\color{blue}{\frac{0.3333333333333333 \cdot 1}{x}} + \left(-3\right)\right) \]
      4. metadata-eval98.4%

        \[\leadsto \sqrt{x} \cdot \left(\frac{\color{blue}{0.3333333333333333}}{x} + \left(-3\right)\right) \]
      5. metadata-eval98.4%

        \[\leadsto \sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \color{blue}{-3}\right) \]
    5. Simplified98.4%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)} \]
    6. Step-by-step derivation
      1. add-cube-cbrt97.0%

        \[\leadsto \color{blue}{\left(\sqrt[3]{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)} \cdot \sqrt[3]{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)}\right) \cdot \sqrt[3]{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)}} \]
      2. pow397.0%

        \[\leadsto \color{blue}{{\left(\sqrt[3]{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)}\right)}^{3}} \]
      3. +-commutative97.0%

        \[\leadsto {\left(\sqrt[3]{\sqrt{x} \cdot \color{blue}{\left(-3 + \frac{0.3333333333333333}{x}\right)}}\right)}^{3} \]
    7. Applied egg-rr97.0%

      \[\leadsto \color{blue}{{\left(\sqrt[3]{\sqrt{x} \cdot \left(-3 + \frac{0.3333333333333333}{x}\right)}\right)}^{3}} \]
    8. Taylor expanded in x around inf 53.4%

      \[\leadsto \color{blue}{-3 \cdot \sqrt{x}} \]
    9. Step-by-step derivation
      1. *-commutative53.4%

        \[\leadsto \color{blue}{\sqrt{x} \cdot -3} \]
    10. Simplified53.4%

      \[\leadsto \color{blue}{\sqrt{x} \cdot -3} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification64.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -7.4 \cdot 10^{-22} \lor \neg \left(y \leq 1\right):\\ \;\;\;\;3 \cdot \left(\sqrt{x} \cdot y\right)\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot -3\\ \end{array} \]

Alternative 10: 61.4% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -7.4 \cdot 10^{-22}:\\ \;\;\;\;3 \cdot \left(\sqrt{x} \cdot y\right)\\ \mathbf{elif}\;y \leq 1:\\ \;\;\;\;\sqrt{x} \cdot -3\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot \left(3 \cdot y\right)\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (<= y -7.4e-22)
   (* 3.0 (* (sqrt x) y))
   (if (<= y 1.0) (* (sqrt x) -3.0) (* (sqrt x) (* 3.0 y)))))
double code(double x, double y) {
	double tmp;
	if (y <= -7.4e-22) {
		tmp = 3.0 * (sqrt(x) * y);
	} else if (y <= 1.0) {
		tmp = sqrt(x) * -3.0;
	} else {
		tmp = sqrt(x) * (3.0 * y);
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if (y <= (-7.4d-22)) then
        tmp = 3.0d0 * (sqrt(x) * y)
    else if (y <= 1.0d0) then
        tmp = sqrt(x) * (-3.0d0)
    else
        tmp = sqrt(x) * (3.0d0 * y)
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if (y <= -7.4e-22) {
		tmp = 3.0 * (Math.sqrt(x) * y);
	} else if (y <= 1.0) {
		tmp = Math.sqrt(x) * -3.0;
	} else {
		tmp = Math.sqrt(x) * (3.0 * y);
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if y <= -7.4e-22:
		tmp = 3.0 * (math.sqrt(x) * y)
	elif y <= 1.0:
		tmp = math.sqrt(x) * -3.0
	else:
		tmp = math.sqrt(x) * (3.0 * y)
	return tmp
function code(x, y)
	tmp = 0.0
	if (y <= -7.4e-22)
		tmp = Float64(3.0 * Float64(sqrt(x) * y));
	elseif (y <= 1.0)
		tmp = Float64(sqrt(x) * -3.0);
	else
		tmp = Float64(sqrt(x) * Float64(3.0 * y));
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if (y <= -7.4e-22)
		tmp = 3.0 * (sqrt(x) * y);
	elseif (y <= 1.0)
		tmp = sqrt(x) * -3.0;
	else
		tmp = sqrt(x) * (3.0 * y);
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[LessEqual[y, -7.4e-22], N[(3.0 * N[(N[Sqrt[x], $MachinePrecision] * y), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 1.0], N[(N[Sqrt[x], $MachinePrecision] * -3.0), $MachinePrecision], N[(N[Sqrt[x], $MachinePrecision] * N[(3.0 * y), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -7.4 \cdot 10^{-22}:\\
\;\;\;\;3 \cdot \left(\sqrt{x} \cdot y\right)\\

\mathbf{elif}\;y \leq 1:\\
\;\;\;\;\sqrt{x} \cdot -3\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -7.4e-22

    1. Initial program 99.6%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Simplified99.6%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}\right)} \]
    3. Taylor expanded in y around inf 74.7%

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

    if -7.4e-22 < y < 1

    1. Initial program 99.4%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Simplified99.5%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}\right)} \]
    3. Taylor expanded in y around 0 98.4%

      \[\leadsto \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{x} - 3\right) \cdot \sqrt{x}} \]
    4. Step-by-step derivation
      1. *-commutative98.4%

        \[\leadsto \color{blue}{\sqrt{x} \cdot \left(0.3333333333333333 \cdot \frac{1}{x} - 3\right)} \]
      2. sub-neg98.4%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{x} + \left(-3\right)\right)} \]
      3. associate-*r/98.4%

        \[\leadsto \sqrt{x} \cdot \left(\color{blue}{\frac{0.3333333333333333 \cdot 1}{x}} + \left(-3\right)\right) \]
      4. metadata-eval98.4%

        \[\leadsto \sqrt{x} \cdot \left(\frac{\color{blue}{0.3333333333333333}}{x} + \left(-3\right)\right) \]
      5. metadata-eval98.4%

        \[\leadsto \sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \color{blue}{-3}\right) \]
    5. Simplified98.4%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)} \]
    6. Step-by-step derivation
      1. add-cube-cbrt97.0%

        \[\leadsto \color{blue}{\left(\sqrt[3]{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)} \cdot \sqrt[3]{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)}\right) \cdot \sqrt[3]{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)}} \]
      2. pow397.0%

        \[\leadsto \color{blue}{{\left(\sqrt[3]{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)}\right)}^{3}} \]
      3. +-commutative97.0%

        \[\leadsto {\left(\sqrt[3]{\sqrt{x} \cdot \color{blue}{\left(-3 + \frac{0.3333333333333333}{x}\right)}}\right)}^{3} \]
    7. Applied egg-rr97.0%

      \[\leadsto \color{blue}{{\left(\sqrt[3]{\sqrt{x} \cdot \left(-3 + \frac{0.3333333333333333}{x}\right)}\right)}^{3}} \]
    8. Taylor expanded in x around inf 53.4%

      \[\leadsto \color{blue}{-3 \cdot \sqrt{x}} \]
    9. Step-by-step derivation
      1. *-commutative53.4%

        \[\leadsto \color{blue}{\sqrt{x} \cdot -3} \]
    10. Simplified53.4%

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

    if 1 < y

    1. Initial program 99.5%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Simplified99.5%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}\right)} \]
    3. Taylor expanded in y around inf 72.2%

      \[\leadsto \color{blue}{3 \cdot \left(y \cdot \sqrt{x}\right)} \]
    4. Step-by-step derivation
      1. associate-*r*72.3%

        \[\leadsto \color{blue}{\left(3 \cdot y\right) \cdot \sqrt{x}} \]
      2. *-commutative72.3%

        \[\leadsto \color{blue}{\sqrt{x} \cdot \left(3 \cdot y\right)} \]
    5. Simplified72.3%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(3 \cdot y\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification64.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -7.4 \cdot 10^{-22}:\\ \;\;\;\;3 \cdot \left(\sqrt{x} \cdot y\right)\\ \mathbf{elif}\;y \leq 1:\\ \;\;\;\;\sqrt{x} \cdot -3\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot \left(3 \cdot y\right)\\ \end{array} \]

Alternative 11: 3.2% accurate, 1.1× speedup?

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

\\
\sqrt{x} \cdot 3
\end{array}
Derivation
  1. Initial program 99.5%

    \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
  2. Simplified99.5%

    \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}\right)} \]
  3. Taylor expanded in y around 0 59.0%

    \[\leadsto \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{x} - 3\right) \cdot \sqrt{x}} \]
  4. Step-by-step derivation
    1. *-commutative59.0%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(0.3333333333333333 \cdot \frac{1}{x} - 3\right)} \]
    2. sub-neg59.0%

      \[\leadsto \sqrt{x} \cdot \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{x} + \left(-3\right)\right)} \]
    3. associate-*r/59.0%

      \[\leadsto \sqrt{x} \cdot \left(\color{blue}{\frac{0.3333333333333333 \cdot 1}{x}} + \left(-3\right)\right) \]
    4. metadata-eval59.0%

      \[\leadsto \sqrt{x} \cdot \left(\frac{\color{blue}{0.3333333333333333}}{x} + \left(-3\right)\right) \]
    5. metadata-eval59.0%

      \[\leadsto \sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \color{blue}{-3}\right) \]
  5. Simplified59.0%

    \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)} \]
  6. Step-by-step derivation
    1. add-cube-cbrt58.2%

      \[\leadsto \color{blue}{\left(\sqrt[3]{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)} \cdot \sqrt[3]{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)}\right) \cdot \sqrt[3]{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)}} \]
    2. pow358.3%

      \[\leadsto \color{blue}{{\left(\sqrt[3]{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)}\right)}^{3}} \]
    3. +-commutative58.3%

      \[\leadsto {\left(\sqrt[3]{\sqrt{x} \cdot \color{blue}{\left(-3 + \frac{0.3333333333333333}{x}\right)}}\right)}^{3} \]
  7. Applied egg-rr58.3%

    \[\leadsto \color{blue}{{\left(\sqrt[3]{\sqrt{x} \cdot \left(-3 + \frac{0.3333333333333333}{x}\right)}\right)}^{3}} \]
  8. Taylor expanded in x around -inf 0.0%

    \[\leadsto \color{blue}{-3 \cdot \left({\left(\sqrt{-1}\right)}^{2} \cdot \left({1}^{0.16666666666666666} \cdot \sqrt{x}\right)\right)} \]
  9. Step-by-step derivation
    1. associate-*r*0.0%

      \[\leadsto \color{blue}{\left(-3 \cdot {\left(\sqrt{-1}\right)}^{2}\right) \cdot \left({1}^{0.16666666666666666} \cdot \sqrt{x}\right)} \]
    2. unpow20.0%

      \[\leadsto \left(-3 \cdot \color{blue}{\left(\sqrt{-1} \cdot \sqrt{-1}\right)}\right) \cdot \left({1}^{0.16666666666666666} \cdot \sqrt{x}\right) \]
    3. rem-square-sqrt3.1%

      \[\leadsto \left(-3 \cdot \color{blue}{-1}\right) \cdot \left({1}^{0.16666666666666666} \cdot \sqrt{x}\right) \]
    4. metadata-eval3.1%

      \[\leadsto \color{blue}{3} \cdot \left({1}^{0.16666666666666666} \cdot \sqrt{x}\right) \]
    5. pow-base-13.1%

      \[\leadsto 3 \cdot \left(\color{blue}{1} \cdot \sqrt{x}\right) \]
    6. *-lft-identity3.1%

      \[\leadsto 3 \cdot \color{blue}{\sqrt{x}} \]
  10. Simplified3.1%

    \[\leadsto \color{blue}{3 \cdot \sqrt{x}} \]
  11. Final simplification3.1%

    \[\leadsto \sqrt{x} \cdot 3 \]

Alternative 12: 26.3% accurate, 1.1× speedup?

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

\\
\sqrt{x} \cdot -3
\end{array}
Derivation
  1. Initial program 99.5%

    \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
  2. Simplified99.5%

    \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}\right)} \]
  3. Taylor expanded in y around 0 59.0%

    \[\leadsto \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{x} - 3\right) \cdot \sqrt{x}} \]
  4. Step-by-step derivation
    1. *-commutative59.0%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(0.3333333333333333 \cdot \frac{1}{x} - 3\right)} \]
    2. sub-neg59.0%

      \[\leadsto \sqrt{x} \cdot \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{x} + \left(-3\right)\right)} \]
    3. associate-*r/59.0%

      \[\leadsto \sqrt{x} \cdot \left(\color{blue}{\frac{0.3333333333333333 \cdot 1}{x}} + \left(-3\right)\right) \]
    4. metadata-eval59.0%

      \[\leadsto \sqrt{x} \cdot \left(\frac{\color{blue}{0.3333333333333333}}{x} + \left(-3\right)\right) \]
    5. metadata-eval59.0%

      \[\leadsto \sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \color{blue}{-3}\right) \]
  5. Simplified59.0%

    \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)} \]
  6. Step-by-step derivation
    1. add-cube-cbrt58.2%

      \[\leadsto \color{blue}{\left(\sqrt[3]{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)} \cdot \sqrt[3]{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)}\right) \cdot \sqrt[3]{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)}} \]
    2. pow358.3%

      \[\leadsto \color{blue}{{\left(\sqrt[3]{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)}\right)}^{3}} \]
    3. +-commutative58.3%

      \[\leadsto {\left(\sqrt[3]{\sqrt{x} \cdot \color{blue}{\left(-3 + \frac{0.3333333333333333}{x}\right)}}\right)}^{3} \]
  7. Applied egg-rr58.3%

    \[\leadsto \color{blue}{{\left(\sqrt[3]{\sqrt{x} \cdot \left(-3 + \frac{0.3333333333333333}{x}\right)}\right)}^{3}} \]
  8. Taylor expanded in x around inf 25.8%

    \[\leadsto \color{blue}{-3 \cdot \sqrt{x}} \]
  9. Step-by-step derivation
    1. *-commutative25.8%

      \[\leadsto \color{blue}{\sqrt{x} \cdot -3} \]
  10. Simplified25.8%

    \[\leadsto \color{blue}{\sqrt{x} \cdot -3} \]
  11. Final simplification25.8%

    \[\leadsto \sqrt{x} \cdot -3 \]

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 2023229 
(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)))