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

Percentage Accurate: 99.4% → 99.5%
Time: 7.9s
Alternatives: 10
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 10 alternatives:

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

Initial Program: 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: 99.5% accurate, 0.4× speedup?

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

\\
\mathsf{fma}\left(3, y \cdot \sqrt{x}, \sqrt{x} \cdot \left(-3 + \frac{0.3333333333333333}{x}\right)\right)
\end{array}
Derivation
  1. Initial program 99.4%

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

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

      \[\leadsto \sqrt{x} \cdot \color{blue}{\left(\left(\sqrt[3]{\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}} \cdot \sqrt[3]{\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}}\right) \cdot \sqrt[3]{\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}}\right)} \]
    2. pow298.1%

      \[\leadsto \sqrt{x} \cdot \left(\color{blue}{{\left(\sqrt[3]{\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}}\right)}^{2}} \cdot \sqrt[3]{\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}}\right) \]
  4. Applied egg-rr98.1%

    \[\leadsto \sqrt{x} \cdot \color{blue}{\left({\left(\sqrt[3]{\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}}\right)}^{2} \cdot \sqrt[3]{\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}}\right)} \]
  5. Taylor expanded in y around 0 99.4%

    \[\leadsto \color{blue}{3 \cdot \left(y \cdot \sqrt{x}\right) + \left(0.3333333333333333 \cdot \frac{1}{x} - 3\right) \cdot \sqrt{x}} \]
  6. Step-by-step derivation
    1. fma-def99.4%

      \[\leadsto \color{blue}{\mathsf{fma}\left(3, y \cdot \sqrt{x}, \left(0.3333333333333333 \cdot \frac{1}{x} - 3\right) \cdot \sqrt{x}\right)} \]
    2. sub-neg99.4%

      \[\leadsto \mathsf{fma}\left(3, y \cdot \sqrt{x}, \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{x} + \left(-3\right)\right)} \cdot \sqrt{x}\right) \]
    3. associate-*r/99.5%

      \[\leadsto \mathsf{fma}\left(3, y \cdot \sqrt{x}, \left(\color{blue}{\frac{0.3333333333333333 \cdot 1}{x}} + \left(-3\right)\right) \cdot \sqrt{x}\right) \]
    4. metadata-eval99.5%

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

      \[\leadsto \mathsf{fma}\left(3, y \cdot \sqrt{x}, \left(\frac{0.3333333333333333}{x} + \color{blue}{-3}\right) \cdot \sqrt{x}\right) \]
    6. +-commutative99.5%

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

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

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

Alternative 2: 60.5% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq 1.75 \cdot 10^{-5}:\\ \;\;\;\;\sqrt{x} \cdot \frac{0.3333333333333333}{x}\\ \mathbf{elif}\;x \leq 2.6 \cdot 10^{+67} \lor \neg \left(x \leq 10^{+175}\right) \land x \leq 8 \cdot 10^{+217}:\\ \;\;\;\;\sqrt{x} \cdot -3\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot \left(3 \cdot y\right)\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (<= x 1.75e-5)
   (* (sqrt x) (/ 0.3333333333333333 x))
   (if (or (<= x 2.6e+67) (and (not (<= x 1e+175)) (<= x 8e+217)))
     (* (sqrt x) -3.0)
     (* (sqrt x) (* 3.0 y)))))
double code(double x, double y) {
	double tmp;
	if (x <= 1.75e-5) {
		tmp = sqrt(x) * (0.3333333333333333 / x);
	} else if ((x <= 2.6e+67) || (!(x <= 1e+175) && (x <= 8e+217))) {
		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 (x <= 1.75d-5) then
        tmp = sqrt(x) * (0.3333333333333333d0 / x)
    else if ((x <= 2.6d+67) .or. (.not. (x <= 1d+175)) .and. (x <= 8d+217)) 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 (x <= 1.75e-5) {
		tmp = Math.sqrt(x) * (0.3333333333333333 / x);
	} else if ((x <= 2.6e+67) || (!(x <= 1e+175) && (x <= 8e+217))) {
		tmp = Math.sqrt(x) * -3.0;
	} else {
		tmp = Math.sqrt(x) * (3.0 * y);
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if x <= 1.75e-5:
		tmp = math.sqrt(x) * (0.3333333333333333 / x)
	elif (x <= 2.6e+67) or (not (x <= 1e+175) and (x <= 8e+217)):
		tmp = math.sqrt(x) * -3.0
	else:
		tmp = math.sqrt(x) * (3.0 * y)
	return tmp
function code(x, y)
	tmp = 0.0
	if (x <= 1.75e-5)
		tmp = Float64(sqrt(x) * Float64(0.3333333333333333 / x));
	elseif ((x <= 2.6e+67) || (!(x <= 1e+175) && (x <= 8e+217)))
		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 (x <= 1.75e-5)
		tmp = sqrt(x) * (0.3333333333333333 / x);
	elseif ((x <= 2.6e+67) || (~((x <= 1e+175)) && (x <= 8e+217)))
		tmp = sqrt(x) * -3.0;
	else
		tmp = sqrt(x) * (3.0 * y);
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[LessEqual[x, 1.75e-5], N[(N[Sqrt[x], $MachinePrecision] * N[(0.3333333333333333 / x), $MachinePrecision]), $MachinePrecision], If[Or[LessEqual[x, 2.6e+67], And[N[Not[LessEqual[x, 1e+175]], $MachinePrecision], LessEqual[x, 8e+217]]], 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}\;x \leq 1.75 \cdot 10^{-5}:\\
\;\;\;\;\sqrt{x} \cdot \frac{0.3333333333333333}{x}\\

\mathbf{elif}\;x \leq 2.6 \cdot 10^{+67} \lor \neg \left(x \leq 10^{+175}\right) \land x \leq 8 \cdot 10^{+217}:\\
\;\;\;\;\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 x < 1.7499999999999998e-5

    1. Initial program 99.3%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Simplified98.7%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}\right)} \]
    3. Taylor expanded in x around 0 75.7%

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

    if 1.7499999999999998e-5 < x < 2.6e67 or 9.9999999999999994e174 < x < 7.99999999999999968e217

    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 y around 0 68.9%

      \[\leadsto \color{blue}{3 \cdot \left(\left(0.1111111111111111 \cdot \frac{1}{x} - 1\right) \cdot \sqrt{x}\right)} \]
    5. Step-by-step derivation
      1. *-commutative68.9%

        \[\leadsto 3 \cdot \color{blue}{\left(\sqrt{x} \cdot \left(0.1111111111111111 \cdot \frac{1}{x} - 1\right)\right)} \]
      2. sub-neg68.9%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(0.1111111111111111 \cdot \frac{1}{x} + \left(-1\right)\right)}\right) \]
      3. associate-*r/68.9%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(\color{blue}{\frac{0.1111111111111111 \cdot 1}{x}} + \left(-1\right)\right)\right) \]
      4. metadata-eval68.9%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right) \]
      5. metadata-eval68.9%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right) \]
      6. associate-*l*69.0%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right)} \]
      7. distribute-rgt-in68.9%

        \[\leadsto \color{blue}{\frac{0.1111111111111111}{x} \cdot \left(3 \cdot \sqrt{x}\right) + -1 \cdot \left(3 \cdot \sqrt{x}\right)} \]
      8. associate-*r*68.9%

        \[\leadsto \color{blue}{\left(\frac{0.1111111111111111}{x} \cdot 3\right) \cdot \sqrt{x}} + -1 \cdot \left(3 \cdot \sqrt{x}\right) \]
      9. fma-def68.9%

        \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{0.1111111111111111}{x} \cdot 3, \sqrt{x}, -1 \cdot \left(3 \cdot \sqrt{x}\right)\right)} \]
      10. associate-*l/68.9%

        \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{0.1111111111111111 \cdot 3}{x}}, \sqrt{x}, -1 \cdot \left(3 \cdot \sqrt{x}\right)\right) \]
      11. metadata-eval68.9%

        \[\leadsto \mathsf{fma}\left(\frac{\color{blue}{0.3333333333333333}}{x}, \sqrt{x}, -1 \cdot \left(3 \cdot \sqrt{x}\right)\right) \]
      12. fma-udef68.9%

        \[\leadsto \color{blue}{\frac{0.3333333333333333}{x} \cdot \sqrt{x} + -1 \cdot \left(3 \cdot \sqrt{x}\right)} \]
      13. associate-*r*68.9%

        \[\leadsto \frac{0.3333333333333333}{x} \cdot \sqrt{x} + \color{blue}{\left(-1 \cdot 3\right) \cdot \sqrt{x}} \]
      14. metadata-eval68.9%

        \[\leadsto \frac{0.3333333333333333}{x} \cdot \sqrt{x} + \color{blue}{-3} \cdot \sqrt{x} \]
      15. distribute-rgt-in69.0%

        \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)} \]
    6. Simplified69.0%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)} \]
    7. Taylor expanded in x around inf 66.2%

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

    if 2.6e67 < x < 9.9999999999999994e174 or 7.99999999999999968e217 < x

    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-rgt-in99.5%

        \[\leadsto \color{blue}{\frac{1}{x \cdot 9} \cdot \left(3 \cdot \sqrt{x}\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right)} \]
      4. remove-double-neg99.5%

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

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

        \[\leadsto \color{blue}{\left(-\frac{1}{x \cdot 9}\right) \cdot \left(-3 \cdot \sqrt{x}\right)} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      7. mul-1-neg99.5%

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

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

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

        \[\leadsto \left(-\color{blue}{\frac{\frac{1}{9}}{x}}\right) \cdot \left(\left(-1\right) \cdot \left(3 \cdot \sqrt{x}\right)\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      11. distribute-neg-frac99.5%

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

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

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

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

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

      \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + \left(y - 1\right)\right)} \]
    4. Taylor expanded in y around inf 63.8%

      \[\leadsto \color{blue}{3 \cdot \left(y \cdot \sqrt{x}\right)} \]
    5. Step-by-step derivation
      1. associate-*r*63.9%

        \[\leadsto \color{blue}{\left(3 \cdot y\right) \cdot \sqrt{x}} \]
      2. *-commutative63.9%

        \[\leadsto \color{blue}{\sqrt{x} \cdot \left(3 \cdot y\right)} \]
    6. Simplified63.9%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(3 \cdot y\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification70.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq 1.75 \cdot 10^{-5}:\\ \;\;\;\;\sqrt{x} \cdot \frac{0.3333333333333333}{x}\\ \mathbf{elif}\;x \leq 2.6 \cdot 10^{+67} \lor \neg \left(x \leq 10^{+175}\right) \land x \leq 8 \cdot 10^{+217}:\\ \;\;\;\;\sqrt{x} \cdot -3\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot \left(3 \cdot y\right)\\ \end{array} \]

Alternative 3: 84.5% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -1.8 \cdot 10^{+141}:\\ \;\;\;\;y \cdot \left(3 \cdot \sqrt{x}\right)\\ \mathbf{elif}\;y \leq 5.8 \cdot 10^{+17}:\\ \;\;\;\;\sqrt{x} \cdot \left(-3 + \frac{0.3333333333333333}{x}\right)\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot \left(3 \cdot y\right)\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (<= y -1.8e+141)
   (* y (* 3.0 (sqrt x)))
   (if (<= y 5.8e+17)
     (* (sqrt x) (+ -3.0 (/ 0.3333333333333333 x)))
     (* (sqrt x) (* 3.0 y)))))
double code(double x, double y) {
	double tmp;
	if (y <= -1.8e+141) {
		tmp = y * (3.0 * sqrt(x));
	} else if (y <= 5.8e+17) {
		tmp = sqrt(x) * (-3.0 + (0.3333333333333333 / x));
	} 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 <= (-1.8d+141)) then
        tmp = y * (3.0d0 * sqrt(x))
    else if (y <= 5.8d+17) then
        tmp = sqrt(x) * ((-3.0d0) + (0.3333333333333333d0 / x))
    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 <= -1.8e+141) {
		tmp = y * (3.0 * Math.sqrt(x));
	} else if (y <= 5.8e+17) {
		tmp = Math.sqrt(x) * (-3.0 + (0.3333333333333333 / x));
	} else {
		tmp = Math.sqrt(x) * (3.0 * y);
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if y <= -1.8e+141:
		tmp = y * (3.0 * math.sqrt(x))
	elif y <= 5.8e+17:
		tmp = math.sqrt(x) * (-3.0 + (0.3333333333333333 / x))
	else:
		tmp = math.sqrt(x) * (3.0 * y)
	return tmp
function code(x, y)
	tmp = 0.0
	if (y <= -1.8e+141)
		tmp = Float64(y * Float64(3.0 * sqrt(x)));
	elseif (y <= 5.8e+17)
		tmp = Float64(sqrt(x) * Float64(-3.0 + Float64(0.3333333333333333 / x)));
	else
		tmp = Float64(sqrt(x) * Float64(3.0 * y));
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if (y <= -1.8e+141)
		tmp = y * (3.0 * sqrt(x));
	elseif (y <= 5.8e+17)
		tmp = sqrt(x) * (-3.0 + (0.3333333333333333 / x));
	else
		tmp = sqrt(x) * (3.0 * y);
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[LessEqual[y, -1.8e+141], N[(y * N[(3.0 * N[Sqrt[x], $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 5.8e+17], N[(N[Sqrt[x], $MachinePrecision] * N[(-3.0 + N[(0.3333333333333333 / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[Sqrt[x], $MachinePrecision] * N[(3.0 * y), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -1.8 \cdot 10^{+141}:\\
\;\;\;\;y \cdot \left(3 \cdot \sqrt{x}\right)\\

\mathbf{elif}\;y \leq 5.8 \cdot 10^{+17}:\\
\;\;\;\;\sqrt{x} \cdot \left(-3 + \frac{0.3333333333333333}{x}\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -1.8000000000000001e141

    1. Initial program 99.7%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. +-commutative99.7%

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

        \[\leadsto \left(3 \cdot \sqrt{x}\right) \cdot \color{blue}{\left(\frac{1}{x \cdot 9} + \left(y - 1\right)\right)} \]
      3. distribute-rgt-in99.7%

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

        \[\leadsto \color{blue}{\left(-\left(-\frac{1}{x \cdot 9} \cdot \left(3 \cdot \sqrt{x}\right)\right)\right)} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      5. distribute-lft-neg-in99.7%

        \[\leadsto \left(-\color{blue}{\left(-\frac{1}{x \cdot 9}\right) \cdot \left(3 \cdot \sqrt{x}\right)}\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      6. distribute-rgt-neg-in99.7%

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

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

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

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

        \[\leadsto \left(-\color{blue}{\frac{\frac{1}{9}}{x}}\right) \cdot \left(\left(-1\right) \cdot \left(3 \cdot \sqrt{x}\right)\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      11. distribute-neg-frac99.5%

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

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

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

      \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + \left(y - 1\right)\right)} \]
    4. Taylor expanded in y around inf 93.5%

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

    if -1.8000000000000001e141 < y < 5.8e17

    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%

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

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

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

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

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

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

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

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

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

        \[\leadsto \left(-\color{blue}{\frac{\frac{1}{9}}{x}}\right) \cdot \left(\left(-1\right) \cdot \left(3 \cdot \sqrt{x}\right)\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      11. distribute-neg-frac99.4%

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

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

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

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

        \[\leadsto \color{blue}{\frac{-\frac{1}{9}}{\frac{x}{-1}} \cdot \left(3 \cdot \sqrt{x}\right)} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
    3. Simplified99.4%

      \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + \left(y - 1\right)\right)} \]
    4. Taylor expanded in y around 0 92.5%

      \[\leadsto \color{blue}{3 \cdot \left(\left(0.1111111111111111 \cdot \frac{1}{x} - 1\right) \cdot \sqrt{x}\right)} \]
    5. Step-by-step derivation
      1. *-commutative92.5%

        \[\leadsto 3 \cdot \color{blue}{\left(\sqrt{x} \cdot \left(0.1111111111111111 \cdot \frac{1}{x} - 1\right)\right)} \]
      2. sub-neg92.5%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(0.1111111111111111 \cdot \frac{1}{x} + \left(-1\right)\right)}\right) \]
      3. associate-*r/92.6%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(\color{blue}{\frac{0.1111111111111111 \cdot 1}{x}} + \left(-1\right)\right)\right) \]
      4. metadata-eval92.6%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right) \]
      5. metadata-eval92.6%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right) \]
      6. associate-*l*92.7%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right)} \]
      7. distribute-rgt-in92.6%

        \[\leadsto \color{blue}{\frac{0.1111111111111111}{x} \cdot \left(3 \cdot \sqrt{x}\right) + -1 \cdot \left(3 \cdot \sqrt{x}\right)} \]
      8. associate-*r*92.6%

        \[\leadsto \color{blue}{\left(\frac{0.1111111111111111}{x} \cdot 3\right) \cdot \sqrt{x}} + -1 \cdot \left(3 \cdot \sqrt{x}\right) \]
      9. fma-def92.6%

        \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{0.1111111111111111}{x} \cdot 3, \sqrt{x}, -1 \cdot \left(3 \cdot \sqrt{x}\right)\right)} \]
      10. associate-*l/92.7%

        \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{0.1111111111111111 \cdot 3}{x}}, \sqrt{x}, -1 \cdot \left(3 \cdot \sqrt{x}\right)\right) \]
      11. metadata-eval92.7%

        \[\leadsto \mathsf{fma}\left(\frac{\color{blue}{0.3333333333333333}}{x}, \sqrt{x}, -1 \cdot \left(3 \cdot \sqrt{x}\right)\right) \]
      12. fma-udef92.7%

        \[\leadsto \color{blue}{\frac{0.3333333333333333}{x} \cdot \sqrt{x} + -1 \cdot \left(3 \cdot \sqrt{x}\right)} \]
      13. associate-*r*92.7%

        \[\leadsto \frac{0.3333333333333333}{x} \cdot \sqrt{x} + \color{blue}{\left(-1 \cdot 3\right) \cdot \sqrt{x}} \]
      14. metadata-eval92.7%

        \[\leadsto \frac{0.3333333333333333}{x} \cdot \sqrt{x} + \color{blue}{-3} \cdot \sqrt{x} \]
      15. distribute-rgt-in92.7%

        \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)} \]
    6. Simplified92.7%

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

    if 5.8e17 < y

    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%

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

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

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

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

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

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

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

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

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

        \[\leadsto \left(-\color{blue}{\frac{\frac{1}{9}}{x}}\right) \cdot \left(\left(-1\right) \cdot \left(3 \cdot \sqrt{x}\right)\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      11. distribute-neg-frac99.5%

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

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

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

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

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

      \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + \left(y - 1\right)\right)} \]
    4. Taylor expanded in y around inf 80.1%

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

        \[\leadsto \color{blue}{\left(3 \cdot y\right) \cdot \sqrt{x}} \]
      2. *-commutative80.3%

        \[\leadsto \color{blue}{\sqrt{x} \cdot \left(3 \cdot y\right)} \]
    6. Simplified80.3%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(3 \cdot y\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification89.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1.8 \cdot 10^{+141}:\\ \;\;\;\;y \cdot \left(3 \cdot \sqrt{x}\right)\\ \mathbf{elif}\;y \leq 5.8 \cdot 10^{+17}:\\ \;\;\;\;\sqrt{x} \cdot \left(-3 + \frac{0.3333333333333333}{x}\right)\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot \left(3 \cdot y\right)\\ \end{array} \]

Alternative 4: 84.6% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -1.8 \cdot 10^{+141}:\\ \;\;\;\;y \cdot \left(3 \cdot \sqrt{x}\right)\\ \mathbf{elif}\;y \leq 3.8 \cdot 10^{+18}:\\ \;\;\;\;\sqrt{x} \cdot \left(-3 + \frac{0.3333333333333333}{x}\right)\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot \left(3 \cdot y - 3\right)\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (<= y -1.8e+141)
   (* y (* 3.0 (sqrt x)))
   (if (<= y 3.8e+18)
     (* (sqrt x) (+ -3.0 (/ 0.3333333333333333 x)))
     (* (sqrt x) (- (* 3.0 y) 3.0)))))
double code(double x, double y) {
	double tmp;
	if (y <= -1.8e+141) {
		tmp = y * (3.0 * sqrt(x));
	} else if (y <= 3.8e+18) {
		tmp = sqrt(x) * (-3.0 + (0.3333333333333333 / x));
	} else {
		tmp = sqrt(x) * ((3.0 * y) - 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 <= (-1.8d+141)) then
        tmp = y * (3.0d0 * sqrt(x))
    else if (y <= 3.8d+18) then
        tmp = sqrt(x) * ((-3.0d0) + (0.3333333333333333d0 / x))
    else
        tmp = sqrt(x) * ((3.0d0 * y) - 3.0d0)
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if (y <= -1.8e+141) {
		tmp = y * (3.0 * Math.sqrt(x));
	} else if (y <= 3.8e+18) {
		tmp = Math.sqrt(x) * (-3.0 + (0.3333333333333333 / x));
	} else {
		tmp = Math.sqrt(x) * ((3.0 * y) - 3.0);
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if y <= -1.8e+141:
		tmp = y * (3.0 * math.sqrt(x))
	elif y <= 3.8e+18:
		tmp = math.sqrt(x) * (-3.0 + (0.3333333333333333 / x))
	else:
		tmp = math.sqrt(x) * ((3.0 * y) - 3.0)
	return tmp
function code(x, y)
	tmp = 0.0
	if (y <= -1.8e+141)
		tmp = Float64(y * Float64(3.0 * sqrt(x)));
	elseif (y <= 3.8e+18)
		tmp = Float64(sqrt(x) * Float64(-3.0 + Float64(0.3333333333333333 / x)));
	else
		tmp = Float64(sqrt(x) * Float64(Float64(3.0 * y) - 3.0));
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if (y <= -1.8e+141)
		tmp = y * (3.0 * sqrt(x));
	elseif (y <= 3.8e+18)
		tmp = sqrt(x) * (-3.0 + (0.3333333333333333 / x));
	else
		tmp = sqrt(x) * ((3.0 * y) - 3.0);
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[LessEqual[y, -1.8e+141], N[(y * N[(3.0 * N[Sqrt[x], $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 3.8e+18], N[(N[Sqrt[x], $MachinePrecision] * N[(-3.0 + N[(0.3333333333333333 / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[Sqrt[x], $MachinePrecision] * N[(N[(3.0 * y), $MachinePrecision] - 3.0), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -1.8 \cdot 10^{+141}:\\
\;\;\;\;y \cdot \left(3 \cdot \sqrt{x}\right)\\

\mathbf{elif}\;y \leq 3.8 \cdot 10^{+18}:\\
\;\;\;\;\sqrt{x} \cdot \left(-3 + \frac{0.3333333333333333}{x}\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -1.8000000000000001e141

    1. Initial program 99.7%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Step-by-step derivation
      1. +-commutative99.7%

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

        \[\leadsto \left(3 \cdot \sqrt{x}\right) \cdot \color{blue}{\left(\frac{1}{x \cdot 9} + \left(y - 1\right)\right)} \]
      3. distribute-rgt-in99.7%

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

        \[\leadsto \color{blue}{\left(-\left(-\frac{1}{x \cdot 9} \cdot \left(3 \cdot \sqrt{x}\right)\right)\right)} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      5. distribute-lft-neg-in99.7%

        \[\leadsto \left(-\color{blue}{\left(-\frac{1}{x \cdot 9}\right) \cdot \left(3 \cdot \sqrt{x}\right)}\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      6. distribute-rgt-neg-in99.7%

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

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

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

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

        \[\leadsto \left(-\color{blue}{\frac{\frac{1}{9}}{x}}\right) \cdot \left(\left(-1\right) \cdot \left(3 \cdot \sqrt{x}\right)\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      11. distribute-neg-frac99.5%

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

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

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

      \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + \left(y - 1\right)\right)} \]
    4. Taylor expanded in y around inf 93.5%

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

    if -1.8000000000000001e141 < y < 3.8e18

    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%

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

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

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

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

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

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

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

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

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

        \[\leadsto \left(-\color{blue}{\frac{\frac{1}{9}}{x}}\right) \cdot \left(\left(-1\right) \cdot \left(3 \cdot \sqrt{x}\right)\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      11. distribute-neg-frac99.4%

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

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

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

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

        \[\leadsto \color{blue}{\frac{-\frac{1}{9}}{\frac{x}{-1}} \cdot \left(3 \cdot \sqrt{x}\right)} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
    3. Simplified99.4%

      \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + \left(y - 1\right)\right)} \]
    4. Taylor expanded in y around 0 92.5%

      \[\leadsto \color{blue}{3 \cdot \left(\left(0.1111111111111111 \cdot \frac{1}{x} - 1\right) \cdot \sqrt{x}\right)} \]
    5. Step-by-step derivation
      1. *-commutative92.5%

        \[\leadsto 3 \cdot \color{blue}{\left(\sqrt{x} \cdot \left(0.1111111111111111 \cdot \frac{1}{x} - 1\right)\right)} \]
      2. sub-neg92.5%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(0.1111111111111111 \cdot \frac{1}{x} + \left(-1\right)\right)}\right) \]
      3. associate-*r/92.6%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(\color{blue}{\frac{0.1111111111111111 \cdot 1}{x}} + \left(-1\right)\right)\right) \]
      4. metadata-eval92.6%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right) \]
      5. metadata-eval92.6%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right) \]
      6. associate-*l*92.7%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right)} \]
      7. distribute-rgt-in92.6%

        \[\leadsto \color{blue}{\frac{0.1111111111111111}{x} \cdot \left(3 \cdot \sqrt{x}\right) + -1 \cdot \left(3 \cdot \sqrt{x}\right)} \]
      8. associate-*r*92.6%

        \[\leadsto \color{blue}{\left(\frac{0.1111111111111111}{x} \cdot 3\right) \cdot \sqrt{x}} + -1 \cdot \left(3 \cdot \sqrt{x}\right) \]
      9. fma-def92.6%

        \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{0.1111111111111111}{x} \cdot 3, \sqrt{x}, -1 \cdot \left(3 \cdot \sqrt{x}\right)\right)} \]
      10. associate-*l/92.7%

        \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{0.1111111111111111 \cdot 3}{x}}, \sqrt{x}, -1 \cdot \left(3 \cdot \sqrt{x}\right)\right) \]
      11. metadata-eval92.7%

        \[\leadsto \mathsf{fma}\left(\frac{\color{blue}{0.3333333333333333}}{x}, \sqrt{x}, -1 \cdot \left(3 \cdot \sqrt{x}\right)\right) \]
      12. fma-udef92.7%

        \[\leadsto \color{blue}{\frac{0.3333333333333333}{x} \cdot \sqrt{x} + -1 \cdot \left(3 \cdot \sqrt{x}\right)} \]
      13. associate-*r*92.7%

        \[\leadsto \frac{0.3333333333333333}{x} \cdot \sqrt{x} + \color{blue}{\left(-1 \cdot 3\right) \cdot \sqrt{x}} \]
      14. metadata-eval92.7%

        \[\leadsto \frac{0.3333333333333333}{x} \cdot \sqrt{x} + \color{blue}{-3} \cdot \sqrt{x} \]
      15. distribute-rgt-in92.7%

        \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)} \]
    6. Simplified92.7%

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

    if 3.8e18 < y

    1. Initial program 99.4%

      \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. Simplified99.7%

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

      \[\leadsto \sqrt{x} \cdot \color{blue}{\left(3 \cdot y - 3\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification89.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1.8 \cdot 10^{+141}:\\ \;\;\;\;y \cdot \left(3 \cdot \sqrt{x}\right)\\ \mathbf{elif}\;y \leq 3.8 \cdot 10^{+18}:\\ \;\;\;\;\sqrt{x} \cdot \left(-3 + \frac{0.3333333333333333}{x}\right)\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot \left(3 \cdot y - 3\right)\\ \end{array} \]

Alternative 5: 99.4% accurate, 1.0× speedup?

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

\\
\sqrt{x} \cdot \left(\left(-3 + \frac{0.3333333333333333}{x}\right) + 3 \cdot y\right)
\end{array}
Derivation
  1. Initial program 99.4%

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

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

      \[\leadsto \sqrt{x} \cdot \color{blue}{\left(\left(\sqrt[3]{\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}} \cdot \sqrt[3]{\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}}\right) \cdot \sqrt[3]{\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}}\right)} \]
    2. pow298.1%

      \[\leadsto \sqrt{x} \cdot \left(\color{blue}{{\left(\sqrt[3]{\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}}\right)}^{2}} \cdot \sqrt[3]{\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}}\right) \]
  4. Applied egg-rr98.1%

    \[\leadsto \sqrt{x} \cdot \color{blue}{\left({\left(\sqrt[3]{\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}}\right)}^{2} \cdot \sqrt[3]{\mathsf{fma}\left(3, y, -3\right) - \frac{-0.3333333333333333}{x}}\right)} \]
  5. Taylor expanded in y around 0 99.4%

    \[\leadsto \color{blue}{3 \cdot \left(y \cdot \sqrt{x}\right) + \left(0.3333333333333333 \cdot \frac{1}{x} - 3\right) \cdot \sqrt{x}} \]
  6. Step-by-step derivation
    1. fma-def99.4%

      \[\leadsto \color{blue}{\mathsf{fma}\left(3, y \cdot \sqrt{x}, \left(0.3333333333333333 \cdot \frac{1}{x} - 3\right) \cdot \sqrt{x}\right)} \]
    2. sub-neg99.4%

      \[\leadsto \mathsf{fma}\left(3, y \cdot \sqrt{x}, \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{x} + \left(-3\right)\right)} \cdot \sqrt{x}\right) \]
    3. associate-*r/99.5%

      \[\leadsto \mathsf{fma}\left(3, y \cdot \sqrt{x}, \left(\color{blue}{\frac{0.3333333333333333 \cdot 1}{x}} + \left(-3\right)\right) \cdot \sqrt{x}\right) \]
    4. metadata-eval99.5%

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

      \[\leadsto \mathsf{fma}\left(3, y \cdot \sqrt{x}, \left(\frac{0.3333333333333333}{x} + \color{blue}{-3}\right) \cdot \sqrt{x}\right) \]
    6. +-commutative99.5%

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

    \[\leadsto \color{blue}{\mathsf{fma}\left(3, y \cdot \sqrt{x}, \left(-3 + \frac{0.3333333333333333}{x}\right) \cdot \sqrt{x}\right)} \]
  8. Taylor expanded in y around 0 99.4%

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

      \[\leadsto \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{x} - 3\right) \cdot \sqrt{x} + 3 \cdot \left(y \cdot \sqrt{x}\right)} \]
    2. sub-neg99.4%

      \[\leadsto \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{x} + \left(-3\right)\right)} \cdot \sqrt{x} + 3 \cdot \left(y \cdot \sqrt{x}\right) \]
    3. associate-*r/99.5%

      \[\leadsto \left(\color{blue}{\frac{0.3333333333333333 \cdot 1}{x}} + \left(-3\right)\right) \cdot \sqrt{x} + 3 \cdot \left(y \cdot \sqrt{x}\right) \]
    4. metadata-eval99.5%

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

      \[\leadsto \left(\frac{0.3333333333333333}{x} + \color{blue}{-3}\right) \cdot \sqrt{x} + 3 \cdot \left(y \cdot \sqrt{x}\right) \]
    6. +-commutative99.5%

      \[\leadsto \color{blue}{\left(-3 + \frac{0.3333333333333333}{x}\right)} \cdot \sqrt{x} + 3 \cdot \left(y \cdot \sqrt{x}\right) \]
    7. associate-*r*99.1%

      \[\leadsto \left(-3 + \frac{0.3333333333333333}{x}\right) \cdot \sqrt{x} + \color{blue}{\left(3 \cdot y\right) \cdot \sqrt{x}} \]
    8. distribute-rgt-out99.2%

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

    \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\left(-3 + \frac{0.3333333333333333}{x}\right) + 3 \cdot y\right)} \]
  11. Final simplification99.2%

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

Alternative 6: 99.4% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + \left(y + -1\right)\right) \end{array} \]
(FPCore (x y)
 :precision binary64
 (* (* 3.0 (sqrt x)) (+ (/ 0.1111111111111111 x) (+ y -1.0))))
double code(double x, double y) {
	return (3.0 * sqrt(x)) * ((0.1111111111111111 / x) + (y + -1.0));
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = (3.0d0 * sqrt(x)) * ((0.1111111111111111d0 / x) + (y + (-1.0d0)))
end function
public static double code(double x, double y) {
	return (3.0 * Math.sqrt(x)) * ((0.1111111111111111 / x) + (y + -1.0));
}
def code(x, y):
	return (3.0 * math.sqrt(x)) * ((0.1111111111111111 / x) + (y + -1.0))
function code(x, y)
	return Float64(Float64(3.0 * sqrt(x)) * Float64(Float64(0.1111111111111111 / x) + Float64(y + -1.0)))
end
function tmp = code(x, y)
	tmp = (3.0 * sqrt(x)) * ((0.1111111111111111 / x) + (y + -1.0));
end
code[x_, y_] := N[(N[(3.0 * N[Sqrt[x], $MachinePrecision]), $MachinePrecision] * N[(N[(0.1111111111111111 / x), $MachinePrecision] + N[(y + -1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + \left(y + -1\right)\right)
\end{array}
Derivation
  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%

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

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

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

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

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

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

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

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

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

      \[\leadsto \left(-\color{blue}{\frac{\frac{1}{9}}{x}}\right) \cdot \left(\left(-1\right) \cdot \left(3 \cdot \sqrt{x}\right)\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
    11. distribute-neg-frac99.4%

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

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

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

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

      \[\leadsto \color{blue}{\frac{-\frac{1}{9}}{\frac{x}{-1}} \cdot \left(3 \cdot \sqrt{x}\right)} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
  3. Simplified99.4%

    \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + \left(y - 1\right)\right)} \]
  4. Final simplification99.4%

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

Alternative 7: 60.4% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -1.65 \cdot 10^{+16} \lor \neg \left(y \leq 1\right):\\ \;\;\;\;3 \cdot \left(y \cdot \sqrt{x}\right)\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot -3\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (or (<= y -1.65e+16) (not (<= y 1.0)))
   (* 3.0 (* y (sqrt x)))
   (* (sqrt x) -3.0)))
double code(double x, double y) {
	double tmp;
	if ((y <= -1.65e+16) || !(y <= 1.0)) {
		tmp = 3.0 * (y * sqrt(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 ((y <= (-1.65d+16)) .or. (.not. (y <= 1.0d0))) then
        tmp = 3.0d0 * (y * sqrt(x))
    else
        tmp = sqrt(x) * (-3.0d0)
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if ((y <= -1.65e+16) || !(y <= 1.0)) {
		tmp = 3.0 * (y * Math.sqrt(x));
	} else {
		tmp = Math.sqrt(x) * -3.0;
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if (y <= -1.65e+16) or not (y <= 1.0):
		tmp = 3.0 * (y * math.sqrt(x))
	else:
		tmp = math.sqrt(x) * -3.0
	return tmp
function code(x, y)
	tmp = 0.0
	if ((y <= -1.65e+16) || !(y <= 1.0))
		tmp = Float64(3.0 * Float64(y * sqrt(x)));
	else
		tmp = Float64(sqrt(x) * -3.0);
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if ((y <= -1.65e+16) || ~((y <= 1.0)))
		tmp = 3.0 * (y * sqrt(x));
	else
		tmp = sqrt(x) * -3.0;
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[Or[LessEqual[y, -1.65e+16], N[Not[LessEqual[y, 1.0]], $MachinePrecision]], N[(3.0 * N[(y * N[Sqrt[x], $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[Sqrt[x], $MachinePrecision] * -3.0), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -1.65 \cdot 10^{+16} \lor \neg \left(y \leq 1\right):\\
\;\;\;\;3 \cdot \left(y \cdot \sqrt{x}\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -1.65e16 or 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. 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-rgt-in99.5%

        \[\leadsto \color{blue}{\frac{1}{x \cdot 9} \cdot \left(3 \cdot \sqrt{x}\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right)} \]
      4. remove-double-neg99.5%

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

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

        \[\leadsto \color{blue}{\left(-\frac{1}{x \cdot 9}\right) \cdot \left(-3 \cdot \sqrt{x}\right)} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      7. mul-1-neg99.5%

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

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

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

        \[\leadsto \left(-\color{blue}{\frac{\frac{1}{9}}{x}}\right) \cdot \left(\left(-1\right) \cdot \left(3 \cdot \sqrt{x}\right)\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      11. distribute-neg-frac99.5%

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

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

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

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

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

      \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + \left(y - 1\right)\right)} \]
    4. Taylor expanded in y around inf 74.0%

      \[\leadsto \color{blue}{3 \cdot \left(y \cdot \sqrt{x}\right)} \]
    5. Step-by-step derivation
      1. *-commutative74.0%

        \[\leadsto 3 \cdot \color{blue}{\left(\sqrt{x} \cdot y\right)} \]
    6. Simplified74.0%

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

    if -1.65e16 < 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. Step-by-step derivation
      1. +-commutative99.4%

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

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

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

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

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

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

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

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

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

        \[\leadsto \left(-\color{blue}{\frac{\frac{1}{9}}{x}}\right) \cdot \left(\left(-1\right) \cdot \left(3 \cdot \sqrt{x}\right)\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      11. distribute-neg-frac99.4%

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

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

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

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

        \[\leadsto \color{blue}{\frac{-\frac{1}{9}}{\frac{x}{-1}} \cdot \left(3 \cdot \sqrt{x}\right)} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
    3. Simplified99.4%

      \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + \left(y - 1\right)\right)} \]
    4. Taylor expanded in y around 0 97.7%

      \[\leadsto \color{blue}{3 \cdot \left(\left(0.1111111111111111 \cdot \frac{1}{x} - 1\right) \cdot \sqrt{x}\right)} \]
    5. Step-by-step derivation
      1. *-commutative97.7%

        \[\leadsto 3 \cdot \color{blue}{\left(\sqrt{x} \cdot \left(0.1111111111111111 \cdot \frac{1}{x} - 1\right)\right)} \]
      2. sub-neg97.7%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(0.1111111111111111 \cdot \frac{1}{x} + \left(-1\right)\right)}\right) \]
      3. associate-*r/97.8%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(\color{blue}{\frac{0.1111111111111111 \cdot 1}{x}} + \left(-1\right)\right)\right) \]
      4. metadata-eval97.8%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right) \]
      5. metadata-eval97.8%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right) \]
      6. associate-*l*97.8%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right)} \]
      7. distribute-rgt-in97.8%

        \[\leadsto \color{blue}{\frac{0.1111111111111111}{x} \cdot \left(3 \cdot \sqrt{x}\right) + -1 \cdot \left(3 \cdot \sqrt{x}\right)} \]
      8. associate-*r*97.7%

        \[\leadsto \color{blue}{\left(\frac{0.1111111111111111}{x} \cdot 3\right) \cdot \sqrt{x}} + -1 \cdot \left(3 \cdot \sqrt{x}\right) \]
      9. fma-def97.7%

        \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{0.1111111111111111}{x} \cdot 3, \sqrt{x}, -1 \cdot \left(3 \cdot \sqrt{x}\right)\right)} \]
      10. associate-*l/97.9%

        \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{0.1111111111111111 \cdot 3}{x}}, \sqrt{x}, -1 \cdot \left(3 \cdot \sqrt{x}\right)\right) \]
      11. metadata-eval97.9%

        \[\leadsto \mathsf{fma}\left(\frac{\color{blue}{0.3333333333333333}}{x}, \sqrt{x}, -1 \cdot \left(3 \cdot \sqrt{x}\right)\right) \]
      12. fma-udef97.8%

        \[\leadsto \color{blue}{\frac{0.3333333333333333}{x} \cdot \sqrt{x} + -1 \cdot \left(3 \cdot \sqrt{x}\right)} \]
      13. associate-*r*97.8%

        \[\leadsto \frac{0.3333333333333333}{x} \cdot \sqrt{x} + \color{blue}{\left(-1 \cdot 3\right) \cdot \sqrt{x}} \]
      14. metadata-eval97.8%

        \[\leadsto \frac{0.3333333333333333}{x} \cdot \sqrt{x} + \color{blue}{-3} \cdot \sqrt{x} \]
      15. distribute-rgt-in97.9%

        \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)} \]
    6. Simplified97.9%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)} \]
    7. Taylor expanded in x around inf 48.2%

      \[\leadsto \sqrt{x} \cdot \color{blue}{-3} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification60.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1.65 \cdot 10^{+16} \lor \neg \left(y \leq 1\right):\\ \;\;\;\;3 \cdot \left(y \cdot \sqrt{x}\right)\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot -3\\ \end{array} \]

Alternative 8: 60.4% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -1.65 \cdot 10^{+16}:\\ \;\;\;\;3 \cdot \left(y \cdot \sqrt{x}\right)\\ \mathbf{elif}\;y \leq 1:\\ \;\;\;\;\sqrt{x} \cdot -3\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot \left(3 \cdot y\right)\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (<= y -1.65e+16)
   (* 3.0 (* y (sqrt x)))
   (if (<= y 1.0) (* (sqrt x) -3.0) (* (sqrt x) (* 3.0 y)))))
double code(double x, double y) {
	double tmp;
	if (y <= -1.65e+16) {
		tmp = 3.0 * (y * sqrt(x));
	} 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 <= (-1.65d+16)) then
        tmp = 3.0d0 * (y * sqrt(x))
    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 <= -1.65e+16) {
		tmp = 3.0 * (y * Math.sqrt(x));
	} 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 <= -1.65e+16:
		tmp = 3.0 * (y * math.sqrt(x))
	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 <= -1.65e+16)
		tmp = Float64(3.0 * Float64(y * sqrt(x)));
	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 <= -1.65e+16)
		tmp = 3.0 * (y * sqrt(x));
	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, -1.65e+16], N[(3.0 * N[(y * N[Sqrt[x], $MachinePrecision]), $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 -1.65 \cdot 10^{+16}:\\
\;\;\;\;3 \cdot \left(y \cdot \sqrt{x}\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 < -1.65e16

    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*99.5%

        \[\leadsto \left(-\color{blue}{\frac{\frac{1}{9}}{x}}\right) \cdot \left(\left(-1\right) \cdot \left(3 \cdot \sqrt{x}\right)\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      11. distribute-neg-frac99.5%

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

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

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

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

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

      \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + \left(y - 1\right)\right)} \]
    4. Taylor expanded in y around inf 70.2%

      \[\leadsto \color{blue}{3 \cdot \left(y \cdot \sqrt{x}\right)} \]
    5. Step-by-step derivation
      1. *-commutative70.2%

        \[\leadsto 3 \cdot \color{blue}{\left(\sqrt{x} \cdot y\right)} \]
    6. Simplified70.2%

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

    if -1.65e16 < 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. Step-by-step derivation
      1. +-commutative99.4%

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

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

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

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

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

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

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

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

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

        \[\leadsto \left(-\color{blue}{\frac{\frac{1}{9}}{x}}\right) \cdot \left(\left(-1\right) \cdot \left(3 \cdot \sqrt{x}\right)\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      11. distribute-neg-frac99.4%

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

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

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

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

        \[\leadsto \color{blue}{\frac{-\frac{1}{9}}{\frac{x}{-1}} \cdot \left(3 \cdot \sqrt{x}\right)} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
    3. Simplified99.4%

      \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + \left(y - 1\right)\right)} \]
    4. Taylor expanded in y around 0 97.7%

      \[\leadsto \color{blue}{3 \cdot \left(\left(0.1111111111111111 \cdot \frac{1}{x} - 1\right) \cdot \sqrt{x}\right)} \]
    5. Step-by-step derivation
      1. *-commutative97.7%

        \[\leadsto 3 \cdot \color{blue}{\left(\sqrt{x} \cdot \left(0.1111111111111111 \cdot \frac{1}{x} - 1\right)\right)} \]
      2. sub-neg97.7%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(0.1111111111111111 \cdot \frac{1}{x} + \left(-1\right)\right)}\right) \]
      3. associate-*r/97.8%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(\color{blue}{\frac{0.1111111111111111 \cdot 1}{x}} + \left(-1\right)\right)\right) \]
      4. metadata-eval97.8%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right) \]
      5. metadata-eval97.8%

        \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right) \]
      6. associate-*l*97.8%

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right)} \]
      7. distribute-rgt-in97.8%

        \[\leadsto \color{blue}{\frac{0.1111111111111111}{x} \cdot \left(3 \cdot \sqrt{x}\right) + -1 \cdot \left(3 \cdot \sqrt{x}\right)} \]
      8. associate-*r*97.7%

        \[\leadsto \color{blue}{\left(\frac{0.1111111111111111}{x} \cdot 3\right) \cdot \sqrt{x}} + -1 \cdot \left(3 \cdot \sqrt{x}\right) \]
      9. fma-def97.7%

        \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{0.1111111111111111}{x} \cdot 3, \sqrt{x}, -1 \cdot \left(3 \cdot \sqrt{x}\right)\right)} \]
      10. associate-*l/97.9%

        \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{0.1111111111111111 \cdot 3}{x}}, \sqrt{x}, -1 \cdot \left(3 \cdot \sqrt{x}\right)\right) \]
      11. metadata-eval97.9%

        \[\leadsto \mathsf{fma}\left(\frac{\color{blue}{0.3333333333333333}}{x}, \sqrt{x}, -1 \cdot \left(3 \cdot \sqrt{x}\right)\right) \]
      12. fma-udef97.8%

        \[\leadsto \color{blue}{\frac{0.3333333333333333}{x} \cdot \sqrt{x} + -1 \cdot \left(3 \cdot \sqrt{x}\right)} \]
      13. associate-*r*97.8%

        \[\leadsto \frac{0.3333333333333333}{x} \cdot \sqrt{x} + \color{blue}{\left(-1 \cdot 3\right) \cdot \sqrt{x}} \]
      14. metadata-eval97.8%

        \[\leadsto \frac{0.3333333333333333}{x} \cdot \sqrt{x} + \color{blue}{-3} \cdot \sqrt{x} \]
      15. distribute-rgt-in97.9%

        \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)} \]
    6. Simplified97.9%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)} \]
    7. Taylor expanded in x around inf 48.2%

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

    if 1 < y

    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%

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

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

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

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

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

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

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

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

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

        \[\leadsto \left(-\color{blue}{\frac{\frac{1}{9}}{x}}\right) \cdot \left(\left(-1\right) \cdot \left(3 \cdot \sqrt{x}\right)\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
      11. distribute-neg-frac99.5%

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

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

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

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

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

      \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + \left(y - 1\right)\right)} \]
    4. Taylor expanded in y around inf 76.9%

      \[\leadsto \color{blue}{3 \cdot \left(y \cdot \sqrt{x}\right)} \]
    5. Step-by-step derivation
      1. associate-*r*77.1%

        \[\leadsto \color{blue}{\left(3 \cdot y\right) \cdot \sqrt{x}} \]
      2. *-commutative77.1%

        \[\leadsto \color{blue}{\sqrt{x} \cdot \left(3 \cdot y\right)} \]
    6. Simplified77.1%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(3 \cdot y\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification60.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1.65 \cdot 10^{+16}:\\ \;\;\;\;3 \cdot \left(y \cdot \sqrt{x}\right)\\ \mathbf{elif}\;y \leq 1:\\ \;\;\;\;\sqrt{x} \cdot -3\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot \left(3 \cdot y\right)\\ \end{array} \]

Alternative 9: 3.3% 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 99.4%

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

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

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

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

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

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

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

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

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

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

      \[\leadsto \left(-\color{blue}{\frac{\frac{1}{9}}{x}}\right) \cdot \left(\left(-1\right) \cdot \left(3 \cdot \sqrt{x}\right)\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
    11. distribute-neg-frac99.4%

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

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

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

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

      \[\leadsto \color{blue}{\frac{-\frac{1}{9}}{\frac{x}{-1}} \cdot \left(3 \cdot \sqrt{x}\right)} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
  3. Simplified99.4%

    \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + \left(y - 1\right)\right)} \]
  4. Taylor expanded in y around 0 63.1%

    \[\leadsto \color{blue}{3 \cdot \left(\left(0.1111111111111111 \cdot \frac{1}{x} - 1\right) \cdot \sqrt{x}\right)} \]
  5. Step-by-step derivation
    1. *-commutative63.1%

      \[\leadsto 3 \cdot \color{blue}{\left(\sqrt{x} \cdot \left(0.1111111111111111 \cdot \frac{1}{x} - 1\right)\right)} \]
    2. sub-neg63.1%

      \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(0.1111111111111111 \cdot \frac{1}{x} + \left(-1\right)\right)}\right) \]
    3. associate-*r/63.2%

      \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(\color{blue}{\frac{0.1111111111111111 \cdot 1}{x}} + \left(-1\right)\right)\right) \]
    4. metadata-eval63.2%

      \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right) \]
    5. metadata-eval63.2%

      \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right) \]
    6. associate-*l*63.2%

      \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right)} \]
    7. distribute-rgt-in63.2%

      \[\leadsto \color{blue}{\frac{0.1111111111111111}{x} \cdot \left(3 \cdot \sqrt{x}\right) + -1 \cdot \left(3 \cdot \sqrt{x}\right)} \]
    8. associate-*r*63.1%

      \[\leadsto \color{blue}{\left(\frac{0.1111111111111111}{x} \cdot 3\right) \cdot \sqrt{x}} + -1 \cdot \left(3 \cdot \sqrt{x}\right) \]
    9. fma-def63.1%

      \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{0.1111111111111111}{x} \cdot 3, \sqrt{x}, -1 \cdot \left(3 \cdot \sqrt{x}\right)\right)} \]
    10. associate-*l/63.2%

      \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{0.1111111111111111 \cdot 3}{x}}, \sqrt{x}, -1 \cdot \left(3 \cdot \sqrt{x}\right)\right) \]
    11. metadata-eval63.2%

      \[\leadsto \mathsf{fma}\left(\frac{\color{blue}{0.3333333333333333}}{x}, \sqrt{x}, -1 \cdot \left(3 \cdot \sqrt{x}\right)\right) \]
    12. fma-udef63.2%

      \[\leadsto \color{blue}{\frac{0.3333333333333333}{x} \cdot \sqrt{x} + -1 \cdot \left(3 \cdot \sqrt{x}\right)} \]
    13. associate-*r*63.2%

      \[\leadsto \frac{0.3333333333333333}{x} \cdot \sqrt{x} + \color{blue}{\left(-1 \cdot 3\right) \cdot \sqrt{x}} \]
    14. metadata-eval63.2%

      \[\leadsto \frac{0.3333333333333333}{x} \cdot \sqrt{x} + \color{blue}{-3} \cdot \sqrt{x} \]
    15. distribute-rgt-in63.2%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)} \]
  6. Simplified63.2%

    \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)} \]
  7. Taylor expanded in x around inf 25.7%

    \[\leadsto \sqrt{x} \cdot \color{blue}{-3} \]
  8. 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-unprod3.9%

      \[\leadsto \color{blue}{\sqrt{\left(\sqrt{x} \cdot -3\right) \cdot \left(\sqrt{x} \cdot -3\right)}} \]
    3. swap-sqr3.9%

      \[\leadsto \sqrt{\color{blue}{\left(\sqrt{x} \cdot \sqrt{x}\right) \cdot \left(-3 \cdot -3\right)}} \]
    4. add-sqr-sqrt3.9%

      \[\leadsto \sqrt{\color{blue}{x} \cdot \left(-3 \cdot -3\right)} \]
    5. metadata-eval3.9%

      \[\leadsto \sqrt{x \cdot \color{blue}{9}} \]
  9. Applied egg-rr3.9%

    \[\leadsto \color{blue}{\sqrt{x \cdot 9}} \]
  10. Final simplification3.9%

    \[\leadsto \sqrt{x \cdot 9} \]

Alternative 10: 25.4% 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 99.4%

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

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

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

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

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

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

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

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

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

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

      \[\leadsto \left(-\color{blue}{\frac{\frac{1}{9}}{x}}\right) \cdot \left(\left(-1\right) \cdot \left(3 \cdot \sqrt{x}\right)\right) + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
    11. distribute-neg-frac99.4%

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

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

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

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

      \[\leadsto \color{blue}{\frac{-\frac{1}{9}}{\frac{x}{-1}} \cdot \left(3 \cdot \sqrt{x}\right)} + \left(y - 1\right) \cdot \left(3 \cdot \sqrt{x}\right) \]
  3. Simplified99.4%

    \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + \left(y - 1\right)\right)} \]
  4. Taylor expanded in y around 0 63.1%

    \[\leadsto \color{blue}{3 \cdot \left(\left(0.1111111111111111 \cdot \frac{1}{x} - 1\right) \cdot \sqrt{x}\right)} \]
  5. Step-by-step derivation
    1. *-commutative63.1%

      \[\leadsto 3 \cdot \color{blue}{\left(\sqrt{x} \cdot \left(0.1111111111111111 \cdot \frac{1}{x} - 1\right)\right)} \]
    2. sub-neg63.1%

      \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \color{blue}{\left(0.1111111111111111 \cdot \frac{1}{x} + \left(-1\right)\right)}\right) \]
    3. associate-*r/63.2%

      \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(\color{blue}{\frac{0.1111111111111111 \cdot 1}{x}} + \left(-1\right)\right)\right) \]
    4. metadata-eval63.2%

      \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(\frac{\color{blue}{0.1111111111111111}}{x} + \left(-1\right)\right)\right) \]
    5. metadata-eval63.2%

      \[\leadsto 3 \cdot \left(\sqrt{x} \cdot \left(\frac{0.1111111111111111}{x} + \color{blue}{-1}\right)\right) \]
    6. associate-*l*63.2%

      \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(\frac{0.1111111111111111}{x} + -1\right)} \]
    7. distribute-rgt-in63.2%

      \[\leadsto \color{blue}{\frac{0.1111111111111111}{x} \cdot \left(3 \cdot \sqrt{x}\right) + -1 \cdot \left(3 \cdot \sqrt{x}\right)} \]
    8. associate-*r*63.1%

      \[\leadsto \color{blue}{\left(\frac{0.1111111111111111}{x} \cdot 3\right) \cdot \sqrt{x}} + -1 \cdot \left(3 \cdot \sqrt{x}\right) \]
    9. fma-def63.1%

      \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{0.1111111111111111}{x} \cdot 3, \sqrt{x}, -1 \cdot \left(3 \cdot \sqrt{x}\right)\right)} \]
    10. associate-*l/63.2%

      \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{0.1111111111111111 \cdot 3}{x}}, \sqrt{x}, -1 \cdot \left(3 \cdot \sqrt{x}\right)\right) \]
    11. metadata-eval63.2%

      \[\leadsto \mathsf{fma}\left(\frac{\color{blue}{0.3333333333333333}}{x}, \sqrt{x}, -1 \cdot \left(3 \cdot \sqrt{x}\right)\right) \]
    12. fma-udef63.2%

      \[\leadsto \color{blue}{\frac{0.3333333333333333}{x} \cdot \sqrt{x} + -1 \cdot \left(3 \cdot \sqrt{x}\right)} \]
    13. associate-*r*63.2%

      \[\leadsto \frac{0.3333333333333333}{x} \cdot \sqrt{x} + \color{blue}{\left(-1 \cdot 3\right) \cdot \sqrt{x}} \]
    14. metadata-eval63.2%

      \[\leadsto \frac{0.3333333333333333}{x} \cdot \sqrt{x} + \color{blue}{-3} \cdot \sqrt{x} \]
    15. distribute-rgt-in63.2%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)} \]
  6. Simplified63.2%

    \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)} \]
  7. Taylor expanded in x around inf 25.7%

    \[\leadsto \sqrt{x} \cdot \color{blue}{-3} \]
  8. Final simplification25.7%

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

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 2023224 
(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)))