Numeric.SpecFunctions:invIncompleteGamma from math-functions-0.1.5.2, D

Percentage Accurate: 99.7% → 99.7%
Time: 8.8s
Alternatives: 18
Speedup: N/A×

Specification

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

\\
\left(1 - \frac{1}{x \cdot 9}\right) - \frac{y}{3 \cdot \sqrt{x}}
\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 18 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: 99.7% accurate, 1.0× speedup?

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

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

Alternative 1: 99.7% accurate, 1.0× speedup?

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

\\
\left(1 - \frac{0.1111111111111111}{x}\right) + \frac{\frac{y}{-3}}{\sqrt{x}}
\end{array}
Derivation
  1. Initial program 99.6%

    \[\left(1 - \frac{1}{x \cdot 9}\right) - \frac{y}{3 \cdot \sqrt{x}} \]
  2. Step-by-step derivation
    1. sub-neg99.6%

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

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

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

      \[\leadsto \left(1 - \frac{\color{blue}{0.1111111111111111}}{x}\right) + \left(-\frac{y}{3 \cdot \sqrt{x}}\right) \]
    5. distribute-frac-neg99.6%

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{\frac{-y}{3 \cdot \sqrt{x}}} \]
    6. neg-mul-199.6%

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \frac{\color{blue}{-1 \cdot y}}{3 \cdot \sqrt{x}} \]
    7. times-frac99.3%

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

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{-0.3333333333333333} \cdot \frac{y}{\sqrt{x}} \]
  3. Simplified99.3%

    \[\leadsto \color{blue}{\left(1 - \frac{0.1111111111111111}{x}\right) + -0.3333333333333333 \cdot \frac{y}{\sqrt{x}}} \]
  4. Add Preprocessing
  5. Step-by-step derivation
    1. clear-num99.2%

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + -0.3333333333333333 \cdot \color{blue}{\frac{1}{\frac{\sqrt{x}}{y}}} \]
    2. un-div-inv99.6%

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{\frac{-0.3333333333333333}{\frac{\sqrt{x}}{y}}} \]
  6. Applied egg-rr99.6%

    \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{\frac{-0.3333333333333333}{\frac{\sqrt{x}}{y}}} \]
  7. Step-by-step derivation
    1. add-sqr-sqrt99.5%

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \frac{-0.3333333333333333}{\frac{\color{blue}{\sqrt{\sqrt{x}} \cdot \sqrt{\sqrt{x}}}}{y}} \]
    2. pow299.5%

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \frac{-0.3333333333333333}{\frac{\color{blue}{{\left(\sqrt{\sqrt{x}}\right)}^{2}}}{y}} \]
    3. pow1/299.5%

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \frac{-0.3333333333333333}{\frac{{\left(\sqrt{\color{blue}{{x}^{0.5}}}\right)}^{2}}{y}} \]
    4. sqrt-pow199.5%

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \frac{-0.3333333333333333}{\frac{{\color{blue}{\left({x}^{\left(\frac{0.5}{2}\right)}\right)}}^{2}}{y}} \]
    5. metadata-eval99.5%

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \frac{-0.3333333333333333}{\frac{{\left({x}^{\color{blue}{0.25}}\right)}^{2}}{y}} \]
  8. Applied egg-rr99.5%

    \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \frac{-0.3333333333333333}{\frac{\color{blue}{{\left({x}^{0.25}\right)}^{2}}}{y}} \]
  9. Step-by-step derivation
    1. pow-pow99.6%

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \frac{-0.3333333333333333}{\frac{\color{blue}{{x}^{\left(0.25 \cdot 2\right)}}}{y}} \]
    2. metadata-eval99.6%

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \frac{-0.3333333333333333}{\frac{{x}^{\color{blue}{0.5}}}{y}} \]
    3. pow1/299.6%

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \frac{-0.3333333333333333}{\frac{\color{blue}{\sqrt{x}}}{y}} \]
    4. div-inv99.2%

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{-0.3333333333333333 \cdot \frac{1}{\frac{\sqrt{x}}{y}}} \]
    5. metadata-eval99.2%

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{\frac{1}{-3}} \cdot \frac{1}{\frac{\sqrt{x}}{y}} \]
    6. clear-num99.3%

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \frac{1}{-3} \cdot \color{blue}{\frac{y}{\sqrt{x}}} \]
    7. times-frac99.6%

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{\frac{1 \cdot y}{-3 \cdot \sqrt{x}}} \]
    8. *-un-lft-identity99.6%

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

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \frac{y}{\color{blue}{\sqrt{x} \cdot -3}} \]
    10. add-cube-cbrt99.2%

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \frac{\color{blue}{\left(\sqrt[3]{y} \cdot \sqrt[3]{y}\right) \cdot \sqrt[3]{y}}}{\sqrt{x} \cdot -3} \]
    11. *-un-lft-identity99.2%

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \frac{\left(\sqrt[3]{y} \cdot \sqrt[3]{y}\right) \cdot \sqrt[3]{y}}{\color{blue}{1 \cdot \left(\sqrt{x} \cdot -3\right)}} \]
    12. times-frac99.2%

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{\frac{\sqrt[3]{y} \cdot \sqrt[3]{y}}{1} \cdot \frac{\sqrt[3]{y}}{\sqrt{x} \cdot -3}} \]
    13. pow299.2%

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \frac{\color{blue}{{\left(\sqrt[3]{y}\right)}^{2}}}{1} \cdot \frac{\sqrt[3]{y}}{\sqrt{x} \cdot -3} \]
  10. Applied egg-rr99.2%

    \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{\frac{{\left(\sqrt[3]{y}\right)}^{2}}{1} \cdot \frac{\sqrt[3]{y}}{\sqrt{x} \cdot -3}} \]
  11. Step-by-step derivation
    1. /-rgt-identity99.2%

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{{\left(\sqrt[3]{y}\right)}^{2}} \cdot \frac{\sqrt[3]{y}}{\sqrt{x} \cdot -3} \]
    2. associate-*r/99.2%

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{\frac{{\left(\sqrt[3]{y}\right)}^{2} \cdot \sqrt[3]{y}}{\sqrt{x} \cdot -3}} \]
    3. unpow299.2%

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \frac{\color{blue}{\left(\sqrt[3]{y} \cdot \sqrt[3]{y}\right)} \cdot \sqrt[3]{y}}{\sqrt{x} \cdot -3} \]
    4. rem-3cbrt-lft99.6%

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

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \frac{y}{\color{blue}{-3 \cdot \sqrt{x}}} \]
    6. associate-/r*99.7%

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{\frac{\frac{y}{-3}}{\sqrt{x}}} \]
  12. Simplified99.7%

    \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{\frac{\frac{y}{-3}}{\sqrt{x}}} \]
  13. Add Preprocessing

Alternative 2: 94.8% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -9.2 \cdot 10^{+54} \lor \neg \left(y \leq 1.45 \cdot 10^{+46}\right):\\ \;\;\;\;1 + y \cdot \frac{-0.3333333333333333}{\sqrt{x}}\\ \mathbf{else}:\\ \;\;\;\;1 + \frac{-1}{x \cdot 9}\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (or (<= y -9.2e+54) (not (<= y 1.45e+46)))
   (+ 1.0 (* y (/ -0.3333333333333333 (sqrt x))))
   (+ 1.0 (/ -1.0 (* x 9.0)))))
double code(double x, double y) {
	double tmp;
	if ((y <= -9.2e+54) || !(y <= 1.45e+46)) {
		tmp = 1.0 + (y * (-0.3333333333333333 / sqrt(x)));
	} else {
		tmp = 1.0 + (-1.0 / (x * 9.0));
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if ((y <= (-9.2d+54)) .or. (.not. (y <= 1.45d+46))) then
        tmp = 1.0d0 + (y * ((-0.3333333333333333d0) / sqrt(x)))
    else
        tmp = 1.0d0 + ((-1.0d0) / (x * 9.0d0))
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if ((y <= -9.2e+54) || !(y <= 1.45e+46)) {
		tmp = 1.0 + (y * (-0.3333333333333333 / Math.sqrt(x)));
	} else {
		tmp = 1.0 + (-1.0 / (x * 9.0));
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if (y <= -9.2e+54) or not (y <= 1.45e+46):
		tmp = 1.0 + (y * (-0.3333333333333333 / math.sqrt(x)))
	else:
		tmp = 1.0 + (-1.0 / (x * 9.0))
	return tmp
function code(x, y)
	tmp = 0.0
	if ((y <= -9.2e+54) || !(y <= 1.45e+46))
		tmp = Float64(1.0 + Float64(y * Float64(-0.3333333333333333 / sqrt(x))));
	else
		tmp = Float64(1.0 + Float64(-1.0 / Float64(x * 9.0)));
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if ((y <= -9.2e+54) || ~((y <= 1.45e+46)))
		tmp = 1.0 + (y * (-0.3333333333333333 / sqrt(x)));
	else
		tmp = 1.0 + (-1.0 / (x * 9.0));
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[Or[LessEqual[y, -9.2e+54], N[Not[LessEqual[y, 1.45e+46]], $MachinePrecision]], N[(1.0 + N[(y * N[(-0.3333333333333333 / N[Sqrt[x], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(1.0 + N[(-1.0 / N[(x * 9.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -9.2 \cdot 10^{+54} \lor \neg \left(y \leq 1.45 \cdot 10^{+46}\right):\\
\;\;\;\;1 + y \cdot \frac{-0.3333333333333333}{\sqrt{x}}\\

\mathbf{else}:\\
\;\;\;\;1 + \frac{-1}{x \cdot 9}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -9.19999999999999977e54 or 1.4500000000000001e46 < y

    1. Initial program 99.4%

      \[\left(1 - \frac{1}{x \cdot 9}\right) - \frac{y}{3 \cdot \sqrt{x}} \]
    2. Step-by-step derivation
      1. sub-neg99.4%

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

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

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

        \[\leadsto \left(1 - \frac{\color{blue}{0.1111111111111111}}{x}\right) + \left(-\frac{y}{3 \cdot \sqrt{x}}\right) \]
      5. distribute-frac-neg99.5%

        \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{\frac{-y}{3 \cdot \sqrt{x}}} \]
      6. neg-mul-199.5%

        \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \frac{\color{blue}{-1 \cdot y}}{3 \cdot \sqrt{x}} \]
      7. times-frac98.6%

        \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{\frac{-1}{3} \cdot \frac{y}{\sqrt{x}}} \]
      8. metadata-eval98.6%

        \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{-0.3333333333333333} \cdot \frac{y}{\sqrt{x}} \]
    3. Simplified98.6%

      \[\leadsto \color{blue}{\left(1 - \frac{0.1111111111111111}{x}\right) + -0.3333333333333333 \cdot \frac{y}{\sqrt{x}}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 96.5%

      \[\leadsto \color{blue}{1} + -0.3333333333333333 \cdot \frac{y}{\sqrt{x}} \]
    6. Step-by-step derivation
      1. *-commutative96.5%

        \[\leadsto 1 + \color{blue}{\frac{y}{\sqrt{x}} \cdot -0.3333333333333333} \]
      2. associate-*l/97.3%

        \[\leadsto 1 + \color{blue}{\frac{y \cdot -0.3333333333333333}{\sqrt{x}}} \]
      3. associate-*r/97.4%

        \[\leadsto 1 + \color{blue}{y \cdot \frac{-0.3333333333333333}{\sqrt{x}}} \]
      4. add-sqr-sqrt0.0%

        \[\leadsto 1 + y \cdot \color{blue}{\left(\sqrt{\frac{-0.3333333333333333}{\sqrt{x}}} \cdot \sqrt{\frac{-0.3333333333333333}{\sqrt{x}}}\right)} \]
      5. sqrt-unprod6.5%

        \[\leadsto 1 + y \cdot \color{blue}{\sqrt{\frac{-0.3333333333333333}{\sqrt{x}} \cdot \frac{-0.3333333333333333}{\sqrt{x}}}} \]
      6. frac-times6.5%

        \[\leadsto 1 + y \cdot \sqrt{\color{blue}{\frac{-0.3333333333333333 \cdot -0.3333333333333333}{\sqrt{x} \cdot \sqrt{x}}}} \]
      7. metadata-eval6.5%

        \[\leadsto 1 + y \cdot \sqrt{\frac{\color{blue}{0.1111111111111111}}{\sqrt{x} \cdot \sqrt{x}}} \]
      8. add-sqr-sqrt6.5%

        \[\leadsto 1 + y \cdot \sqrt{\frac{0.1111111111111111}{\color{blue}{x}}} \]
      9. clear-num6.5%

        \[\leadsto 1 + y \cdot \sqrt{\color{blue}{\frac{1}{\frac{x}{0.1111111111111111}}}} \]
      10. sqrt-div6.5%

        \[\leadsto 1 + y \cdot \color{blue}{\frac{\sqrt{1}}{\sqrt{\frac{x}{0.1111111111111111}}}} \]
      11. div-inv6.5%

        \[\leadsto 1 + y \cdot \frac{\sqrt{1}}{\sqrt{\color{blue}{x \cdot \frac{1}{0.1111111111111111}}}} \]
      12. metadata-eval6.5%

        \[\leadsto 1 + y \cdot \frac{\sqrt{1}}{\sqrt{x \cdot \color{blue}{9}}} \]
      13. sqrt-div6.5%

        \[\leadsto 1 + y \cdot \color{blue}{\sqrt{\frac{1}{x \cdot 9}}} \]
      14. sqrt-div6.5%

        \[\leadsto 1 + y \cdot \color{blue}{\frac{\sqrt{1}}{\sqrt{x \cdot 9}}} \]
      15. metadata-eval6.5%

        \[\leadsto 1 + y \cdot \frac{\color{blue}{1}}{\sqrt{x \cdot 9}} \]
      16. sqrt-prod6.5%

        \[\leadsto 1 + y \cdot \frac{1}{\color{blue}{\sqrt{x} \cdot \sqrt{9}}} \]
      17. metadata-eval6.5%

        \[\leadsto 1 + y \cdot \frac{1}{\sqrt{x} \cdot \color{blue}{3}} \]
      18. *-commutative6.5%

        \[\leadsto 1 + y \cdot \frac{1}{\color{blue}{3 \cdot \sqrt{x}}} \]
      19. div-inv6.5%

        \[\leadsto 1 + \color{blue}{\frac{y}{3 \cdot \sqrt{x}}} \]
      20. clear-num6.5%

        \[\leadsto 1 + \color{blue}{\frac{1}{\frac{3 \cdot \sqrt{x}}{y}}} \]
      21. *-commutative6.5%

        \[\leadsto 1 + \frac{1}{\frac{\color{blue}{\sqrt{x} \cdot 3}}{y}} \]
      22. associate-/l*6.5%

        \[\leadsto 1 + \frac{1}{\color{blue}{\sqrt{x} \cdot \frac{3}{y}}} \]
    7. Applied egg-rr6.5%

      \[\leadsto 1 + \color{blue}{\frac{1}{\sqrt{x} \cdot \frac{3}{y}}} \]
    8. Step-by-step derivation
      1. associate-*r/6.5%

        \[\leadsto 1 + \frac{1}{\color{blue}{\frac{\sqrt{x} \cdot 3}{y}}} \]
      2. associate-/r/6.5%

        \[\leadsto 1 + \color{blue}{\frac{1}{\sqrt{x} \cdot 3} \cdot y} \]
      3. *-commutative6.5%

        \[\leadsto 1 + \frac{1}{\color{blue}{3 \cdot \sqrt{x}}} \cdot y \]
      4. associate-/r*6.5%

        \[\leadsto 1 + \color{blue}{\frac{\frac{1}{3}}{\sqrt{x}}} \cdot y \]
      5. metadata-eval6.5%

        \[\leadsto 1 + \frac{\color{blue}{0.3333333333333333}}{\sqrt{x}} \cdot y \]
      6. unpow1/26.5%

        \[\leadsto 1 + \frac{0.3333333333333333}{\color{blue}{{x}^{0.5}}} \cdot y \]
      7. metadata-eval6.5%

        \[\leadsto 1 + \frac{0.3333333333333333}{{x}^{\color{blue}{\left(2 \cdot 0.25\right)}}} \cdot y \]
      8. pow-sqr6.5%

        \[\leadsto 1 + \frac{0.3333333333333333}{\color{blue}{{x}^{0.25} \cdot {x}^{0.25}}} \cdot y \]
      9. metadata-eval6.5%

        \[\leadsto 1 + \frac{\color{blue}{\left|-0.3333333333333333\right|}}{{x}^{0.25} \cdot {x}^{0.25}} \cdot y \]
      10. fabs-sqr6.5%

        \[\leadsto 1 + \frac{\left|-0.3333333333333333\right|}{\color{blue}{\left|{x}^{0.25} \cdot {x}^{0.25}\right|}} \cdot y \]
      11. pow-sqr6.5%

        \[\leadsto 1 + \frac{\left|-0.3333333333333333\right|}{\left|\color{blue}{{x}^{\left(2 \cdot 0.25\right)}}\right|} \cdot y \]
      12. metadata-eval6.5%

        \[\leadsto 1 + \frac{\left|-0.3333333333333333\right|}{\left|{x}^{\color{blue}{0.5}}\right|} \cdot y \]
      13. unpow1/26.5%

        \[\leadsto 1 + \frac{\left|-0.3333333333333333\right|}{\left|\color{blue}{\sqrt{x}}\right|} \cdot y \]
      14. fabs-div6.5%

        \[\leadsto 1 + \color{blue}{\left|\frac{-0.3333333333333333}{\sqrt{x}}\right|} \cdot y \]
      15. rem-square-sqrt0.0%

        \[\leadsto 1 + \left|\color{blue}{\sqrt{\frac{-0.3333333333333333}{\sqrt{x}}} \cdot \sqrt{\frac{-0.3333333333333333}{\sqrt{x}}}}\right| \cdot y \]
      16. fabs-sqr0.0%

        \[\leadsto 1 + \color{blue}{\left(\sqrt{\frac{-0.3333333333333333}{\sqrt{x}}} \cdot \sqrt{\frac{-0.3333333333333333}{\sqrt{x}}}\right)} \cdot y \]
      17. rem-square-sqrt97.4%

        \[\leadsto 1 + \color{blue}{\frac{-0.3333333333333333}{\sqrt{x}}} \cdot y \]
      18. *-commutative97.4%

        \[\leadsto 1 + \color{blue}{y \cdot \frac{-0.3333333333333333}{\sqrt{x}}} \]
    9. Simplified97.4%

      \[\leadsto 1 + \color{blue}{y \cdot \frac{-0.3333333333333333}{\sqrt{x}}} \]

    if -9.19999999999999977e54 < y < 1.4500000000000001e46

    1. Initial program 99.7%

      \[\left(1 - \frac{1}{x \cdot 9}\right) - \frac{y}{3 \cdot \sqrt{x}} \]
    2. Step-by-step derivation
      1. associate--l-99.7%

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

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

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

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

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

        \[\leadsto 1 + \color{blue}{\left(\frac{-y}{3 \cdot \sqrt{x}} - \frac{1}{x \cdot 9}\right)} \]
      7. neg-mul-199.7%

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

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

        \[\leadsto 1 + \left(\color{blue}{y \cdot \frac{-1}{3 \cdot \sqrt{x}}} - \frac{1}{x \cdot 9}\right) \]
      10. fmm-def99.7%

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

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

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{\color{blue}{-0.3333333333333333}}{\sqrt{x}}, -\frac{1}{x \cdot 9}\right) \]
      13. *-commutative99.7%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\frac{1}{\color{blue}{9 \cdot x}}\right) \]
      14. associate-/r*99.7%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\color{blue}{\frac{\frac{1}{9}}{x}}\right) \]
      15. distribute-neg-frac99.7%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \color{blue}{\frac{-\frac{1}{9}}{x}}\right) \]
      16. metadata-eval99.7%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-\color{blue}{0.1111111111111111}}{x}\right) \]
      17. metadata-eval99.7%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{\color{blue}{-0.1111111111111111}}{x}\right) \]
    3. Simplified99.7%

      \[\leadsto \color{blue}{1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-0.1111111111111111}{x}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around 0 99.1%

      \[\leadsto \color{blue}{1 - 0.1111111111111111 \cdot \frac{1}{x}} \]
    6. Step-by-step derivation
      1. associate-*r/99.0%

        \[\leadsto 1 - \color{blue}{\frac{0.1111111111111111 \cdot 1}{x}} \]
      2. metadata-eval99.0%

        \[\leadsto 1 - \frac{\color{blue}{0.1111111111111111}}{x} \]
    7. Simplified99.0%

      \[\leadsto \color{blue}{1 - \frac{0.1111111111111111}{x}} \]
    8. Step-by-step derivation
      1. clear-num99.0%

        \[\leadsto 1 - \color{blue}{\frac{1}{\frac{x}{0.1111111111111111}}} \]
      2. div-inv99.1%

        \[\leadsto 1 - \frac{1}{\color{blue}{x \cdot \frac{1}{0.1111111111111111}}} \]
      3. metadata-eval99.1%

        \[\leadsto 1 - \frac{1}{x \cdot \color{blue}{9}} \]
      4. inv-pow99.1%

        \[\leadsto 1 - \color{blue}{{\left(x \cdot 9\right)}^{-1}} \]
    9. Applied egg-rr99.1%

      \[\leadsto 1 - \color{blue}{{\left(x \cdot 9\right)}^{-1}} \]
    10. Step-by-step derivation
      1. unpow-199.1%

        \[\leadsto 1 - \color{blue}{\frac{1}{x \cdot 9}} \]
    11. Applied egg-rr99.1%

      \[\leadsto 1 - \color{blue}{\frac{1}{x \cdot 9}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification98.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -9.2 \cdot 10^{+54} \lor \neg \left(y \leq 1.45 \cdot 10^{+46}\right):\\ \;\;\;\;1 + y \cdot \frac{-0.3333333333333333}{\sqrt{x}}\\ \mathbf{else}:\\ \;\;\;\;1 + \frac{-1}{x \cdot 9}\\ \end{array} \]
  5. Add Preprocessing

Alternative 3: 94.9% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -3.8 \cdot 10^{+51} \lor \neg \left(y \leq 3.6 \cdot 10^{+46}\right):\\ \;\;\;\;1 + -0.3333333333333333 \cdot \frac{y}{\sqrt{x}}\\ \mathbf{else}:\\ \;\;\;\;1 + \frac{-1}{x \cdot 9}\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (or (<= y -3.8e+51) (not (<= y 3.6e+46)))
   (+ 1.0 (* -0.3333333333333333 (/ y (sqrt x))))
   (+ 1.0 (/ -1.0 (* x 9.0)))))
double code(double x, double y) {
	double tmp;
	if ((y <= -3.8e+51) || !(y <= 3.6e+46)) {
		tmp = 1.0 + (-0.3333333333333333 * (y / sqrt(x)));
	} else {
		tmp = 1.0 + (-1.0 / (x * 9.0));
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if ((y <= (-3.8d+51)) .or. (.not. (y <= 3.6d+46))) then
        tmp = 1.0d0 + ((-0.3333333333333333d0) * (y / sqrt(x)))
    else
        tmp = 1.0d0 + ((-1.0d0) / (x * 9.0d0))
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if ((y <= -3.8e+51) || !(y <= 3.6e+46)) {
		tmp = 1.0 + (-0.3333333333333333 * (y / Math.sqrt(x)));
	} else {
		tmp = 1.0 + (-1.0 / (x * 9.0));
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if (y <= -3.8e+51) or not (y <= 3.6e+46):
		tmp = 1.0 + (-0.3333333333333333 * (y / math.sqrt(x)))
	else:
		tmp = 1.0 + (-1.0 / (x * 9.0))
	return tmp
function code(x, y)
	tmp = 0.0
	if ((y <= -3.8e+51) || !(y <= 3.6e+46))
		tmp = Float64(1.0 + Float64(-0.3333333333333333 * Float64(y / sqrt(x))));
	else
		tmp = Float64(1.0 + Float64(-1.0 / Float64(x * 9.0)));
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if ((y <= -3.8e+51) || ~((y <= 3.6e+46)))
		tmp = 1.0 + (-0.3333333333333333 * (y / sqrt(x)));
	else
		tmp = 1.0 + (-1.0 / (x * 9.0));
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[Or[LessEqual[y, -3.8e+51], N[Not[LessEqual[y, 3.6e+46]], $MachinePrecision]], N[(1.0 + N[(-0.3333333333333333 * N[(y / N[Sqrt[x], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(1.0 + N[(-1.0 / N[(x * 9.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -3.8 \cdot 10^{+51} \lor \neg \left(y \leq 3.6 \cdot 10^{+46}\right):\\
\;\;\;\;1 + -0.3333333333333333 \cdot \frac{y}{\sqrt{x}}\\

\mathbf{else}:\\
\;\;\;\;1 + \frac{-1}{x \cdot 9}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -3.7999999999999997e51 or 3.5999999999999999e46 < y

    1. Initial program 99.4%

      \[\left(1 - \frac{1}{x \cdot 9}\right) - \frac{y}{3 \cdot \sqrt{x}} \]
    2. Step-by-step derivation
      1. sub-neg99.4%

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

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

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

        \[\leadsto \left(1 - \frac{\color{blue}{0.1111111111111111}}{x}\right) + \left(-\frac{y}{3 \cdot \sqrt{x}}\right) \]
      5. distribute-frac-neg99.5%

        \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{\frac{-y}{3 \cdot \sqrt{x}}} \]
      6. neg-mul-199.5%

        \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \frac{\color{blue}{-1 \cdot y}}{3 \cdot \sqrt{x}} \]
      7. times-frac98.6%

        \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{\frac{-1}{3} \cdot \frac{y}{\sqrt{x}}} \]
      8. metadata-eval98.6%

        \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{-0.3333333333333333} \cdot \frac{y}{\sqrt{x}} \]
    3. Simplified98.6%

      \[\leadsto \color{blue}{\left(1 - \frac{0.1111111111111111}{x}\right) + -0.3333333333333333 \cdot \frac{y}{\sqrt{x}}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 96.5%

      \[\leadsto \color{blue}{1} + -0.3333333333333333 \cdot \frac{y}{\sqrt{x}} \]

    if -3.7999999999999997e51 < y < 3.5999999999999999e46

    1. Initial program 99.7%

      \[\left(1 - \frac{1}{x \cdot 9}\right) - \frac{y}{3 \cdot \sqrt{x}} \]
    2. Step-by-step derivation
      1. associate--l-99.7%

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

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

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

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

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

        \[\leadsto 1 + \color{blue}{\left(\frac{-y}{3 \cdot \sqrt{x}} - \frac{1}{x \cdot 9}\right)} \]
      7. neg-mul-199.7%

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

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

        \[\leadsto 1 + \left(\color{blue}{y \cdot \frac{-1}{3 \cdot \sqrt{x}}} - \frac{1}{x \cdot 9}\right) \]
      10. fmm-def99.7%

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

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

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{\color{blue}{-0.3333333333333333}}{\sqrt{x}}, -\frac{1}{x \cdot 9}\right) \]
      13. *-commutative99.7%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\frac{1}{\color{blue}{9 \cdot x}}\right) \]
      14. associate-/r*99.7%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\color{blue}{\frac{\frac{1}{9}}{x}}\right) \]
      15. distribute-neg-frac99.7%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \color{blue}{\frac{-\frac{1}{9}}{x}}\right) \]
      16. metadata-eval99.7%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-\color{blue}{0.1111111111111111}}{x}\right) \]
      17. metadata-eval99.7%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{\color{blue}{-0.1111111111111111}}{x}\right) \]
    3. Simplified99.7%

      \[\leadsto \color{blue}{1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-0.1111111111111111}{x}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around 0 99.1%

      \[\leadsto \color{blue}{1 - 0.1111111111111111 \cdot \frac{1}{x}} \]
    6. Step-by-step derivation
      1. associate-*r/99.0%

        \[\leadsto 1 - \color{blue}{\frac{0.1111111111111111 \cdot 1}{x}} \]
      2. metadata-eval99.0%

        \[\leadsto 1 - \frac{\color{blue}{0.1111111111111111}}{x} \]
    7. Simplified99.0%

      \[\leadsto \color{blue}{1 - \frac{0.1111111111111111}{x}} \]
    8. Step-by-step derivation
      1. clear-num99.0%

        \[\leadsto 1 - \color{blue}{\frac{1}{\frac{x}{0.1111111111111111}}} \]
      2. div-inv99.1%

        \[\leadsto 1 - \frac{1}{\color{blue}{x \cdot \frac{1}{0.1111111111111111}}} \]
      3. metadata-eval99.1%

        \[\leadsto 1 - \frac{1}{x \cdot \color{blue}{9}} \]
      4. inv-pow99.1%

        \[\leadsto 1 - \color{blue}{{\left(x \cdot 9\right)}^{-1}} \]
    9. Applied egg-rr99.1%

      \[\leadsto 1 - \color{blue}{{\left(x \cdot 9\right)}^{-1}} \]
    10. Step-by-step derivation
      1. unpow-199.1%

        \[\leadsto 1 - \color{blue}{\frac{1}{x \cdot 9}} \]
    11. Applied egg-rr99.1%

      \[\leadsto 1 - \color{blue}{\frac{1}{x \cdot 9}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification98.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -3.8 \cdot 10^{+51} \lor \neg \left(y \leq 3.6 \cdot 10^{+46}\right):\\ \;\;\;\;1 + -0.3333333333333333 \cdot \frac{y}{\sqrt{x}}\\ \mathbf{else}:\\ \;\;\;\;1 + \frac{-1}{x \cdot 9}\\ \end{array} \]
  5. Add Preprocessing

Alternative 4: 94.8% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -7.6 \cdot 10^{+54}:\\ \;\;\;\;1 + \frac{y}{-3 \cdot \sqrt{x}}\\ \mathbf{elif}\;y \leq 1.65 \cdot 10^{+44}:\\ \;\;\;\;1 + \frac{-1}{x \cdot 9}\\ \mathbf{else}:\\ \;\;\;\;1 + y \cdot \frac{-0.3333333333333333}{\sqrt{x}}\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (<= y -7.6e+54)
   (+ 1.0 (/ y (* -3.0 (sqrt x))))
   (if (<= y 1.65e+44)
     (+ 1.0 (/ -1.0 (* x 9.0)))
     (+ 1.0 (* y (/ -0.3333333333333333 (sqrt x)))))))
double code(double x, double y) {
	double tmp;
	if (y <= -7.6e+54) {
		tmp = 1.0 + (y / (-3.0 * sqrt(x)));
	} else if (y <= 1.65e+44) {
		tmp = 1.0 + (-1.0 / (x * 9.0));
	} else {
		tmp = 1.0 + (y * (-0.3333333333333333 / sqrt(x)));
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if (y <= (-7.6d+54)) then
        tmp = 1.0d0 + (y / ((-3.0d0) * sqrt(x)))
    else if (y <= 1.65d+44) then
        tmp = 1.0d0 + ((-1.0d0) / (x * 9.0d0))
    else
        tmp = 1.0d0 + (y * ((-0.3333333333333333d0) / sqrt(x)))
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if (y <= -7.6e+54) {
		tmp = 1.0 + (y / (-3.0 * Math.sqrt(x)));
	} else if (y <= 1.65e+44) {
		tmp = 1.0 + (-1.0 / (x * 9.0));
	} else {
		tmp = 1.0 + (y * (-0.3333333333333333 / Math.sqrt(x)));
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if y <= -7.6e+54:
		tmp = 1.0 + (y / (-3.0 * math.sqrt(x)))
	elif y <= 1.65e+44:
		tmp = 1.0 + (-1.0 / (x * 9.0))
	else:
		tmp = 1.0 + (y * (-0.3333333333333333 / math.sqrt(x)))
	return tmp
function code(x, y)
	tmp = 0.0
	if (y <= -7.6e+54)
		tmp = Float64(1.0 + Float64(y / Float64(-3.0 * sqrt(x))));
	elseif (y <= 1.65e+44)
		tmp = Float64(1.0 + Float64(-1.0 / Float64(x * 9.0)));
	else
		tmp = Float64(1.0 + Float64(y * Float64(-0.3333333333333333 / sqrt(x))));
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if (y <= -7.6e+54)
		tmp = 1.0 + (y / (-3.0 * sqrt(x)));
	elseif (y <= 1.65e+44)
		tmp = 1.0 + (-1.0 / (x * 9.0));
	else
		tmp = 1.0 + (y * (-0.3333333333333333 / sqrt(x)));
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[LessEqual[y, -7.6e+54], N[(1.0 + N[(y / N[(-3.0 * N[Sqrt[x], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 1.65e+44], N[(1.0 + N[(-1.0 / N[(x * 9.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(1.0 + N[(y * N[(-0.3333333333333333 / N[Sqrt[x], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -7.6 \cdot 10^{+54}:\\
\;\;\;\;1 + \frac{y}{-3 \cdot \sqrt{x}}\\

\mathbf{elif}\;y \leq 1.65 \cdot 10^{+44}:\\
\;\;\;\;1 + \frac{-1}{x \cdot 9}\\

\mathbf{else}:\\
\;\;\;\;1 + y \cdot \frac{-0.3333333333333333}{\sqrt{x}}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -7.6000000000000005e54

    1. Initial program 99.5%

      \[\left(1 - \frac{1}{x \cdot 9}\right) - \frac{y}{3 \cdot \sqrt{x}} \]
    2. Step-by-step derivation
      1. sub-neg99.5%

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

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

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

        \[\leadsto \left(1 - \frac{\color{blue}{0.1111111111111111}}{x}\right) + \left(-\frac{y}{3 \cdot \sqrt{x}}\right) \]
      5. distribute-frac-neg99.5%

        \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{\frac{-y}{3 \cdot \sqrt{x}}} \]
      6. neg-mul-199.5%

        \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \frac{\color{blue}{-1 \cdot y}}{3 \cdot \sqrt{x}} \]
      7. times-frac97.7%

        \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{\frac{-1}{3} \cdot \frac{y}{\sqrt{x}}} \]
      8. metadata-eval97.7%

        \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{-0.3333333333333333} \cdot \frac{y}{\sqrt{x}} \]
    3. Simplified97.7%

      \[\leadsto \color{blue}{\left(1 - \frac{0.1111111111111111}{x}\right) + -0.3333333333333333 \cdot \frac{y}{\sqrt{x}}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 97.1%

      \[\leadsto \color{blue}{1} + -0.3333333333333333 \cdot \frac{y}{\sqrt{x}} \]
    6. Step-by-step derivation
      1. *-commutative97.1%

        \[\leadsto 1 + \color{blue}{\frac{y}{\sqrt{x}} \cdot -0.3333333333333333} \]
      2. associate-*l/98.6%

        \[\leadsto 1 + \color{blue}{\frac{y \cdot -0.3333333333333333}{\sqrt{x}}} \]
      3. associate-*r/98.8%

        \[\leadsto 1 + \color{blue}{y \cdot \frac{-0.3333333333333333}{\sqrt{x}}} \]
      4. clear-num98.8%

        \[\leadsto 1 + y \cdot \color{blue}{\frac{1}{\frac{\sqrt{x}}{-0.3333333333333333}}} \]
      5. un-div-inv98.9%

        \[\leadsto 1 + \color{blue}{\frac{y}{\frac{\sqrt{x}}{-0.3333333333333333}}} \]
      6. div-inv98.9%

        \[\leadsto 1 + \frac{y}{\color{blue}{\sqrt{x} \cdot \frac{1}{-0.3333333333333333}}} \]
      7. metadata-eval98.9%

        \[\leadsto 1 + \frac{y}{\sqrt{x} \cdot \color{blue}{-3}} \]
    7. Applied egg-rr98.9%

      \[\leadsto 1 + \color{blue}{\frac{y}{\sqrt{x} \cdot -3}} \]

    if -7.6000000000000005e54 < y < 1.65000000000000007e44

    1. Initial program 99.7%

      \[\left(1 - \frac{1}{x \cdot 9}\right) - \frac{y}{3 \cdot \sqrt{x}} \]
    2. Step-by-step derivation
      1. associate--l-99.7%

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

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

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

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

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

        \[\leadsto 1 + \color{blue}{\left(\frac{-y}{3 \cdot \sqrt{x}} - \frac{1}{x \cdot 9}\right)} \]
      7. neg-mul-199.7%

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

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

        \[\leadsto 1 + \left(\color{blue}{y \cdot \frac{-1}{3 \cdot \sqrt{x}}} - \frac{1}{x \cdot 9}\right) \]
      10. fmm-def99.7%

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

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

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{\color{blue}{-0.3333333333333333}}{\sqrt{x}}, -\frac{1}{x \cdot 9}\right) \]
      13. *-commutative99.7%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\frac{1}{\color{blue}{9 \cdot x}}\right) \]
      14. associate-/r*99.7%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\color{blue}{\frac{\frac{1}{9}}{x}}\right) \]
      15. distribute-neg-frac99.7%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \color{blue}{\frac{-\frac{1}{9}}{x}}\right) \]
      16. metadata-eval99.7%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-\color{blue}{0.1111111111111111}}{x}\right) \]
      17. metadata-eval99.7%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{\color{blue}{-0.1111111111111111}}{x}\right) \]
    3. Simplified99.7%

      \[\leadsto \color{blue}{1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-0.1111111111111111}{x}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around 0 99.1%

      \[\leadsto \color{blue}{1 - 0.1111111111111111 \cdot \frac{1}{x}} \]
    6. Step-by-step derivation
      1. associate-*r/99.0%

        \[\leadsto 1 - \color{blue}{\frac{0.1111111111111111 \cdot 1}{x}} \]
      2. metadata-eval99.0%

        \[\leadsto 1 - \frac{\color{blue}{0.1111111111111111}}{x} \]
    7. Simplified99.0%

      \[\leadsto \color{blue}{1 - \frac{0.1111111111111111}{x}} \]
    8. Step-by-step derivation
      1. clear-num99.0%

        \[\leadsto 1 - \color{blue}{\frac{1}{\frac{x}{0.1111111111111111}}} \]
      2. div-inv99.1%

        \[\leadsto 1 - \frac{1}{\color{blue}{x \cdot \frac{1}{0.1111111111111111}}} \]
      3. metadata-eval99.1%

        \[\leadsto 1 - \frac{1}{x \cdot \color{blue}{9}} \]
      4. inv-pow99.1%

        \[\leadsto 1 - \color{blue}{{\left(x \cdot 9\right)}^{-1}} \]
    9. Applied egg-rr99.1%

      \[\leadsto 1 - \color{blue}{{\left(x \cdot 9\right)}^{-1}} \]
    10. Step-by-step derivation
      1. unpow-199.1%

        \[\leadsto 1 - \color{blue}{\frac{1}{x \cdot 9}} \]
    11. Applied egg-rr99.1%

      \[\leadsto 1 - \color{blue}{\frac{1}{x \cdot 9}} \]

    if 1.65000000000000007e44 < y

    1. Initial program 99.4%

      \[\left(1 - \frac{1}{x \cdot 9}\right) - \frac{y}{3 \cdot \sqrt{x}} \]
    2. Step-by-step derivation
      1. sub-neg99.4%

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

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

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

        \[\leadsto \left(1 - \frac{\color{blue}{0.1111111111111111}}{x}\right) + \left(-\frac{y}{3 \cdot \sqrt{x}}\right) \]
      5. distribute-frac-neg99.4%

        \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{\frac{-y}{3 \cdot \sqrt{x}}} \]
      6. neg-mul-199.4%

        \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \frac{\color{blue}{-1 \cdot y}}{3 \cdot \sqrt{x}} \]
      7. times-frac99.5%

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

        \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{-0.3333333333333333} \cdot \frac{y}{\sqrt{x}} \]
    3. Simplified99.5%

      \[\leadsto \color{blue}{\left(1 - \frac{0.1111111111111111}{x}\right) + -0.3333333333333333 \cdot \frac{y}{\sqrt{x}}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 95.9%

      \[\leadsto \color{blue}{1} + -0.3333333333333333 \cdot \frac{y}{\sqrt{x}} \]
    6. Step-by-step derivation
      1. *-commutative95.9%

        \[\leadsto 1 + \color{blue}{\frac{y}{\sqrt{x}} \cdot -0.3333333333333333} \]
      2. associate-*l/96.1%

        \[\leadsto 1 + \color{blue}{\frac{y \cdot -0.3333333333333333}{\sqrt{x}}} \]
      3. associate-*r/96.0%

        \[\leadsto 1 + \color{blue}{y \cdot \frac{-0.3333333333333333}{\sqrt{x}}} \]
      4. add-sqr-sqrt0.0%

        \[\leadsto 1 + y \cdot \color{blue}{\left(\sqrt{\frac{-0.3333333333333333}{\sqrt{x}}} \cdot \sqrt{\frac{-0.3333333333333333}{\sqrt{x}}}\right)} \]
      5. sqrt-unprod5.4%

        \[\leadsto 1 + y \cdot \color{blue}{\sqrt{\frac{-0.3333333333333333}{\sqrt{x}} \cdot \frac{-0.3333333333333333}{\sqrt{x}}}} \]
      6. frac-times5.4%

        \[\leadsto 1 + y \cdot \sqrt{\color{blue}{\frac{-0.3333333333333333 \cdot -0.3333333333333333}{\sqrt{x} \cdot \sqrt{x}}}} \]
      7. metadata-eval5.4%

        \[\leadsto 1 + y \cdot \sqrt{\frac{\color{blue}{0.1111111111111111}}{\sqrt{x} \cdot \sqrt{x}}} \]
      8. add-sqr-sqrt5.4%

        \[\leadsto 1 + y \cdot \sqrt{\frac{0.1111111111111111}{\color{blue}{x}}} \]
      9. clear-num5.4%

        \[\leadsto 1 + y \cdot \sqrt{\color{blue}{\frac{1}{\frac{x}{0.1111111111111111}}}} \]
      10. sqrt-div5.4%

        \[\leadsto 1 + y \cdot \color{blue}{\frac{\sqrt{1}}{\sqrt{\frac{x}{0.1111111111111111}}}} \]
      11. div-inv5.4%

        \[\leadsto 1 + y \cdot \frac{\sqrt{1}}{\sqrt{\color{blue}{x \cdot \frac{1}{0.1111111111111111}}}} \]
      12. metadata-eval5.4%

        \[\leadsto 1 + y \cdot \frac{\sqrt{1}}{\sqrt{x \cdot \color{blue}{9}}} \]
      13. sqrt-div5.4%

        \[\leadsto 1 + y \cdot \color{blue}{\sqrt{\frac{1}{x \cdot 9}}} \]
      14. sqrt-div5.4%

        \[\leadsto 1 + y \cdot \color{blue}{\frac{\sqrt{1}}{\sqrt{x \cdot 9}}} \]
      15. metadata-eval5.4%

        \[\leadsto 1 + y \cdot \frac{\color{blue}{1}}{\sqrt{x \cdot 9}} \]
      16. sqrt-prod5.4%

        \[\leadsto 1 + y \cdot \frac{1}{\color{blue}{\sqrt{x} \cdot \sqrt{9}}} \]
      17. metadata-eval5.4%

        \[\leadsto 1 + y \cdot \frac{1}{\sqrt{x} \cdot \color{blue}{3}} \]
      18. *-commutative5.4%

        \[\leadsto 1 + y \cdot \frac{1}{\color{blue}{3 \cdot \sqrt{x}}} \]
      19. div-inv5.4%

        \[\leadsto 1 + \color{blue}{\frac{y}{3 \cdot \sqrt{x}}} \]
      20. clear-num5.4%

        \[\leadsto 1 + \color{blue}{\frac{1}{\frac{3 \cdot \sqrt{x}}{y}}} \]
      21. *-commutative5.4%

        \[\leadsto 1 + \frac{1}{\frac{\color{blue}{\sqrt{x} \cdot 3}}{y}} \]
      22. associate-/l*5.4%

        \[\leadsto 1 + \frac{1}{\color{blue}{\sqrt{x} \cdot \frac{3}{y}}} \]
    7. Applied egg-rr5.4%

      \[\leadsto 1 + \color{blue}{\frac{1}{\sqrt{x} \cdot \frac{3}{y}}} \]
    8. Step-by-step derivation
      1. associate-*r/5.4%

        \[\leadsto 1 + \frac{1}{\color{blue}{\frac{\sqrt{x} \cdot 3}{y}}} \]
      2. associate-/r/5.4%

        \[\leadsto 1 + \color{blue}{\frac{1}{\sqrt{x} \cdot 3} \cdot y} \]
      3. *-commutative5.4%

        \[\leadsto 1 + \frac{1}{\color{blue}{3 \cdot \sqrt{x}}} \cdot y \]
      4. associate-/r*5.4%

        \[\leadsto 1 + \color{blue}{\frac{\frac{1}{3}}{\sqrt{x}}} \cdot y \]
      5. metadata-eval5.4%

        \[\leadsto 1 + \frac{\color{blue}{0.3333333333333333}}{\sqrt{x}} \cdot y \]
      6. unpow1/25.4%

        \[\leadsto 1 + \frac{0.3333333333333333}{\color{blue}{{x}^{0.5}}} \cdot y \]
      7. metadata-eval5.4%

        \[\leadsto 1 + \frac{0.3333333333333333}{{x}^{\color{blue}{\left(2 \cdot 0.25\right)}}} \cdot y \]
      8. pow-sqr5.4%

        \[\leadsto 1 + \frac{0.3333333333333333}{\color{blue}{{x}^{0.25} \cdot {x}^{0.25}}} \cdot y \]
      9. metadata-eval5.4%

        \[\leadsto 1 + \frac{\color{blue}{\left|-0.3333333333333333\right|}}{{x}^{0.25} \cdot {x}^{0.25}} \cdot y \]
      10. fabs-sqr5.4%

        \[\leadsto 1 + \frac{\left|-0.3333333333333333\right|}{\color{blue}{\left|{x}^{0.25} \cdot {x}^{0.25}\right|}} \cdot y \]
      11. pow-sqr5.4%

        \[\leadsto 1 + \frac{\left|-0.3333333333333333\right|}{\left|\color{blue}{{x}^{\left(2 \cdot 0.25\right)}}\right|} \cdot y \]
      12. metadata-eval5.4%

        \[\leadsto 1 + \frac{\left|-0.3333333333333333\right|}{\left|{x}^{\color{blue}{0.5}}\right|} \cdot y \]
      13. unpow1/25.4%

        \[\leadsto 1 + \frac{\left|-0.3333333333333333\right|}{\left|\color{blue}{\sqrt{x}}\right|} \cdot y \]
      14. fabs-div5.4%

        \[\leadsto 1 + \color{blue}{\left|\frac{-0.3333333333333333}{\sqrt{x}}\right|} \cdot y \]
      15. rem-square-sqrt0.0%

        \[\leadsto 1 + \left|\color{blue}{\sqrt{\frac{-0.3333333333333333}{\sqrt{x}}} \cdot \sqrt{\frac{-0.3333333333333333}{\sqrt{x}}}}\right| \cdot y \]
      16. fabs-sqr0.0%

        \[\leadsto 1 + \color{blue}{\left(\sqrt{\frac{-0.3333333333333333}{\sqrt{x}}} \cdot \sqrt{\frac{-0.3333333333333333}{\sqrt{x}}}\right)} \cdot y \]
      17. rem-square-sqrt96.0%

        \[\leadsto 1 + \color{blue}{\frac{-0.3333333333333333}{\sqrt{x}}} \cdot y \]
      18. *-commutative96.0%

        \[\leadsto 1 + \color{blue}{y \cdot \frac{-0.3333333333333333}{\sqrt{x}}} \]
    9. Simplified96.0%

      \[\leadsto 1 + \color{blue}{y \cdot \frac{-0.3333333333333333}{\sqrt{x}}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification98.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -7.6 \cdot 10^{+54}:\\ \;\;\;\;1 + \frac{y}{-3 \cdot \sqrt{x}}\\ \mathbf{elif}\;y \leq 1.65 \cdot 10^{+44}:\\ \;\;\;\;1 + \frac{-1}{x \cdot 9}\\ \mathbf{else}:\\ \;\;\;\;1 + y \cdot \frac{-0.3333333333333333}{\sqrt{x}}\\ \end{array} \]
  5. Add Preprocessing

Alternative 5: 91.8% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -6.6 \cdot 10^{+54} \lor \neg \left(y \leq 8.6 \cdot 10^{+46}\right):\\ \;\;\;\;\frac{y}{-3 \cdot \sqrt{x}}\\ \mathbf{else}:\\ \;\;\;\;1 + \frac{-1}{x \cdot 9}\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (or (<= y -6.6e+54) (not (<= y 8.6e+46)))
   (/ y (* -3.0 (sqrt x)))
   (+ 1.0 (/ -1.0 (* x 9.0)))))
double code(double x, double y) {
	double tmp;
	if ((y <= -6.6e+54) || !(y <= 8.6e+46)) {
		tmp = y / (-3.0 * sqrt(x));
	} else {
		tmp = 1.0 + (-1.0 / (x * 9.0));
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if ((y <= (-6.6d+54)) .or. (.not. (y <= 8.6d+46))) then
        tmp = y / ((-3.0d0) * sqrt(x))
    else
        tmp = 1.0d0 + ((-1.0d0) / (x * 9.0d0))
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if ((y <= -6.6e+54) || !(y <= 8.6e+46)) {
		tmp = y / (-3.0 * Math.sqrt(x));
	} else {
		tmp = 1.0 + (-1.0 / (x * 9.0));
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if (y <= -6.6e+54) or not (y <= 8.6e+46):
		tmp = y / (-3.0 * math.sqrt(x))
	else:
		tmp = 1.0 + (-1.0 / (x * 9.0))
	return tmp
function code(x, y)
	tmp = 0.0
	if ((y <= -6.6e+54) || !(y <= 8.6e+46))
		tmp = Float64(y / Float64(-3.0 * sqrt(x)));
	else
		tmp = Float64(1.0 + Float64(-1.0 / Float64(x * 9.0)));
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if ((y <= -6.6e+54) || ~((y <= 8.6e+46)))
		tmp = y / (-3.0 * sqrt(x));
	else
		tmp = 1.0 + (-1.0 / (x * 9.0));
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[Or[LessEqual[y, -6.6e+54], N[Not[LessEqual[y, 8.6e+46]], $MachinePrecision]], N[(y / N[(-3.0 * N[Sqrt[x], $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(1.0 + N[(-1.0 / N[(x * 9.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -6.6 \cdot 10^{+54} \lor \neg \left(y \leq 8.6 \cdot 10^{+46}\right):\\
\;\;\;\;\frac{y}{-3 \cdot \sqrt{x}}\\

\mathbf{else}:\\
\;\;\;\;1 + \frac{-1}{x \cdot 9}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -6.6e54 or 8.60000000000000009e46 < y

    1. Initial program 99.4%

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

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

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

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

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

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

        \[\leadsto 1 + \color{blue}{\left(\frac{-y}{3 \cdot \sqrt{x}} - \frac{1}{x \cdot 9}\right)} \]
      7. neg-mul-199.4%

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

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

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

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

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

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{\color{blue}{-0.3333333333333333}}{\sqrt{x}}, -\frac{1}{x \cdot 9}\right) \]
      13. *-commutative99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\frac{1}{\color{blue}{9 \cdot x}}\right) \]
      14. associate-/r*99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\color{blue}{\frac{\frac{1}{9}}{x}}\right) \]
      15. distribute-neg-frac99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \color{blue}{\frac{-\frac{1}{9}}{x}}\right) \]
      16. metadata-eval99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-\color{blue}{0.1111111111111111}}{x}\right) \]
      17. metadata-eval99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{\color{blue}{-0.1111111111111111}}{x}\right) \]
    3. Simplified99.5%

      \[\leadsto \color{blue}{1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-0.1111111111111111}{x}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 89.3%

      \[\leadsto \color{blue}{-0.3333333333333333 \cdot \left(\sqrt{\frac{1}{x}} \cdot y\right)} \]
    6. Step-by-step derivation
      1. associate-*r*90.3%

        \[\leadsto \color{blue}{\left(-0.3333333333333333 \cdot \sqrt{\frac{1}{x}}\right) \cdot y} \]
    7. Simplified90.3%

      \[\leadsto \color{blue}{\left(-0.3333333333333333 \cdot \sqrt{\frac{1}{x}}\right) \cdot y} \]
    8. Step-by-step derivation
      1. *-commutative90.3%

        \[\leadsto \color{blue}{y \cdot \left(-0.3333333333333333 \cdot \sqrt{\frac{1}{x}}\right)} \]
      2. associate-*r*90.2%

        \[\leadsto \color{blue}{\left(y \cdot -0.3333333333333333\right) \cdot \sqrt{\frac{1}{x}}} \]
      3. metadata-eval90.2%

        \[\leadsto \left(y \cdot \color{blue}{\frac{1}{-3}}\right) \cdot \sqrt{\frac{1}{x}} \]
      4. div-inv90.3%

        \[\leadsto \color{blue}{\frac{y}{-3}} \cdot \sqrt{\frac{1}{x}} \]
      5. sqrt-div90.3%

        \[\leadsto \frac{y}{-3} \cdot \color{blue}{\frac{\sqrt{1}}{\sqrt{x}}} \]
      6. metadata-eval90.3%

        \[\leadsto \frac{y}{-3} \cdot \frac{\color{blue}{1}}{\sqrt{x}} \]
      7. frac-times90.3%

        \[\leadsto \color{blue}{\frac{y \cdot 1}{-3 \cdot \sqrt{x}}} \]
      8. *-commutative90.3%

        \[\leadsto \frac{\color{blue}{1 \cdot y}}{-3 \cdot \sqrt{x}} \]
      9. *-un-lft-identity90.3%

        \[\leadsto \frac{\color{blue}{y}}{-3 \cdot \sqrt{x}} \]
    9. Applied egg-rr90.3%

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

    if -6.6e54 < y < 8.60000000000000009e46

    1. Initial program 99.7%

      \[\left(1 - \frac{1}{x \cdot 9}\right) - \frac{y}{3 \cdot \sqrt{x}} \]
    2. Step-by-step derivation
      1. associate--l-99.7%

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

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

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

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

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

        \[\leadsto 1 + \color{blue}{\left(\frac{-y}{3 \cdot \sqrt{x}} - \frac{1}{x \cdot 9}\right)} \]
      7. neg-mul-199.7%

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

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

        \[\leadsto 1 + \left(\color{blue}{y \cdot \frac{-1}{3 \cdot \sqrt{x}}} - \frac{1}{x \cdot 9}\right) \]
      10. fmm-def99.7%

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

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

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{\color{blue}{-0.3333333333333333}}{\sqrt{x}}, -\frac{1}{x \cdot 9}\right) \]
      13. *-commutative99.7%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\frac{1}{\color{blue}{9 \cdot x}}\right) \]
      14. associate-/r*99.7%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\color{blue}{\frac{\frac{1}{9}}{x}}\right) \]
      15. distribute-neg-frac99.7%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \color{blue}{\frac{-\frac{1}{9}}{x}}\right) \]
      16. metadata-eval99.7%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-\color{blue}{0.1111111111111111}}{x}\right) \]
      17. metadata-eval99.7%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{\color{blue}{-0.1111111111111111}}{x}\right) \]
    3. Simplified99.7%

      \[\leadsto \color{blue}{1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-0.1111111111111111}{x}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around 0 99.1%

      \[\leadsto \color{blue}{1 - 0.1111111111111111 \cdot \frac{1}{x}} \]
    6. Step-by-step derivation
      1. associate-*r/99.0%

        \[\leadsto 1 - \color{blue}{\frac{0.1111111111111111 \cdot 1}{x}} \]
      2. metadata-eval99.0%

        \[\leadsto 1 - \frac{\color{blue}{0.1111111111111111}}{x} \]
    7. Simplified99.0%

      \[\leadsto \color{blue}{1 - \frac{0.1111111111111111}{x}} \]
    8. Step-by-step derivation
      1. clear-num99.0%

        \[\leadsto 1 - \color{blue}{\frac{1}{\frac{x}{0.1111111111111111}}} \]
      2. div-inv99.1%

        \[\leadsto 1 - \frac{1}{\color{blue}{x \cdot \frac{1}{0.1111111111111111}}} \]
      3. metadata-eval99.1%

        \[\leadsto 1 - \frac{1}{x \cdot \color{blue}{9}} \]
      4. inv-pow99.1%

        \[\leadsto 1 - \color{blue}{{\left(x \cdot 9\right)}^{-1}} \]
    9. Applied egg-rr99.1%

      \[\leadsto 1 - \color{blue}{{\left(x \cdot 9\right)}^{-1}} \]
    10. Step-by-step derivation
      1. unpow-199.1%

        \[\leadsto 1 - \color{blue}{\frac{1}{x \cdot 9}} \]
    11. Applied egg-rr99.1%

      \[\leadsto 1 - \color{blue}{\frac{1}{x \cdot 9}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification95.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -6.6 \cdot 10^{+54} \lor \neg \left(y \leq 8.6 \cdot 10^{+46}\right):\\ \;\;\;\;\frac{y}{-3 \cdot \sqrt{x}}\\ \mathbf{else}:\\ \;\;\;\;1 + \frac{-1}{x \cdot 9}\\ \end{array} \]
  5. Add Preprocessing

Alternative 6: 91.8% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -1 \cdot 10^{+55}:\\ \;\;\;\;\frac{{x}^{-0.5}}{\frac{-3}{y}}\\ \mathbf{elif}\;y \leq 1.1 \cdot 10^{+47}:\\ \;\;\;\;1 + \frac{-1}{x \cdot 9}\\ \mathbf{else}:\\ \;\;\;\;\frac{y \cdot -0.3333333333333333}{\sqrt{x}}\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (<= y -1e+55)
   (/ (pow x -0.5) (/ -3.0 y))
   (if (<= y 1.1e+47)
     (+ 1.0 (/ -1.0 (* x 9.0)))
     (/ (* y -0.3333333333333333) (sqrt x)))))
double code(double x, double y) {
	double tmp;
	if (y <= -1e+55) {
		tmp = pow(x, -0.5) / (-3.0 / y);
	} else if (y <= 1.1e+47) {
		tmp = 1.0 + (-1.0 / (x * 9.0));
	} else {
		tmp = (y * -0.3333333333333333) / sqrt(x);
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if (y <= (-1d+55)) then
        tmp = (x ** (-0.5d0)) / ((-3.0d0) / y)
    else if (y <= 1.1d+47) then
        tmp = 1.0d0 + ((-1.0d0) / (x * 9.0d0))
    else
        tmp = (y * (-0.3333333333333333d0)) / sqrt(x)
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if (y <= -1e+55) {
		tmp = Math.pow(x, -0.5) / (-3.0 / y);
	} else if (y <= 1.1e+47) {
		tmp = 1.0 + (-1.0 / (x * 9.0));
	} else {
		tmp = (y * -0.3333333333333333) / Math.sqrt(x);
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if y <= -1e+55:
		tmp = math.pow(x, -0.5) / (-3.0 / y)
	elif y <= 1.1e+47:
		tmp = 1.0 + (-1.0 / (x * 9.0))
	else:
		tmp = (y * -0.3333333333333333) / math.sqrt(x)
	return tmp
function code(x, y)
	tmp = 0.0
	if (y <= -1e+55)
		tmp = Float64((x ^ -0.5) / Float64(-3.0 / y));
	elseif (y <= 1.1e+47)
		tmp = Float64(1.0 + Float64(-1.0 / Float64(x * 9.0)));
	else
		tmp = Float64(Float64(y * -0.3333333333333333) / sqrt(x));
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if (y <= -1e+55)
		tmp = (x ^ -0.5) / (-3.0 / y);
	elseif (y <= 1.1e+47)
		tmp = 1.0 + (-1.0 / (x * 9.0));
	else
		tmp = (y * -0.3333333333333333) / sqrt(x);
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[LessEqual[y, -1e+55], N[(N[Power[x, -0.5], $MachinePrecision] / N[(-3.0 / y), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 1.1e+47], N[(1.0 + N[(-1.0 / N[(x * 9.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(y * -0.3333333333333333), $MachinePrecision] / N[Sqrt[x], $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -1 \cdot 10^{+55}:\\
\;\;\;\;\frac{{x}^{-0.5}}{\frac{-3}{y}}\\

\mathbf{elif}\;y \leq 1.1 \cdot 10^{+47}:\\
\;\;\;\;1 + \frac{-1}{x \cdot 9}\\

\mathbf{else}:\\
\;\;\;\;\frac{y \cdot -0.3333333333333333}{\sqrt{x}}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -1.00000000000000001e55

    1. Initial program 99.5%

      \[\left(1 - \frac{1}{x \cdot 9}\right) - \frac{y}{3 \cdot \sqrt{x}} \]
    2. Step-by-step derivation
      1. associate--l-99.5%

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

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

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

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

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

        \[\leadsto 1 + \color{blue}{\left(\frac{-y}{3 \cdot \sqrt{x}} - \frac{1}{x \cdot 9}\right)} \]
      7. neg-mul-199.5%

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

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

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

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

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

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{\color{blue}{-0.3333333333333333}}{\sqrt{x}}, -\frac{1}{x \cdot 9}\right) \]
      13. *-commutative99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\frac{1}{\color{blue}{9 \cdot x}}\right) \]
      14. associate-/r*99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\color{blue}{\frac{\frac{1}{9}}{x}}\right) \]
      15. distribute-neg-frac99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \color{blue}{\frac{-\frac{1}{9}}{x}}\right) \]
      16. metadata-eval99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-\color{blue}{0.1111111111111111}}{x}\right) \]
      17. metadata-eval99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{\color{blue}{-0.1111111111111111}}{x}\right) \]
    3. Simplified99.5%

      \[\leadsto \color{blue}{1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-0.1111111111111111}{x}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 87.9%

      \[\leadsto \color{blue}{-0.3333333333333333 \cdot \left(\sqrt{\frac{1}{x}} \cdot y\right)} \]
    6. Step-by-step derivation
      1. associate-*r*89.8%

        \[\leadsto \color{blue}{\left(-0.3333333333333333 \cdot \sqrt{\frac{1}{x}}\right) \cdot y} \]
    7. Simplified89.8%

      \[\leadsto \color{blue}{\left(-0.3333333333333333 \cdot \sqrt{\frac{1}{x}}\right) \cdot y} \]
    8. Step-by-step derivation
      1. *-commutative89.8%

        \[\leadsto \color{blue}{y \cdot \left(-0.3333333333333333 \cdot \sqrt{\frac{1}{x}}\right)} \]
      2. associate-*r*89.7%

        \[\leadsto \color{blue}{\left(y \cdot -0.3333333333333333\right) \cdot \sqrt{\frac{1}{x}}} \]
      3. metadata-eval89.7%

        \[\leadsto \left(y \cdot \color{blue}{\frac{1}{-3}}\right) \cdot \sqrt{\frac{1}{x}} \]
      4. div-inv89.8%

        \[\leadsto \color{blue}{\frac{y}{-3}} \cdot \sqrt{\frac{1}{x}} \]
      5. clear-num89.7%

        \[\leadsto \color{blue}{\frac{1}{\frac{-3}{y}}} \cdot \sqrt{\frac{1}{x}} \]
      6. associate-*l/89.9%

        \[\leadsto \color{blue}{\frac{1 \cdot \sqrt{\frac{1}{x}}}{\frac{-3}{y}}} \]
      7. *-un-lft-identity89.9%

        \[\leadsto \frac{\color{blue}{\sqrt{\frac{1}{x}}}}{\frac{-3}{y}} \]
      8. inv-pow89.9%

        \[\leadsto \frac{\sqrt{\color{blue}{{x}^{-1}}}}{\frac{-3}{y}} \]
      9. sqrt-pow190.0%

        \[\leadsto \frac{\color{blue}{{x}^{\left(\frac{-1}{2}\right)}}}{\frac{-3}{y}} \]
      10. metadata-eval90.0%

        \[\leadsto \frac{{x}^{\color{blue}{-0.5}}}{\frac{-3}{y}} \]
    9. Applied egg-rr90.0%

      \[\leadsto \color{blue}{\frac{{x}^{-0.5}}{\frac{-3}{y}}} \]

    if -1.00000000000000001e55 < y < 1.1e47

    1. Initial program 99.7%

      \[\left(1 - \frac{1}{x \cdot 9}\right) - \frac{y}{3 \cdot \sqrt{x}} \]
    2. Step-by-step derivation
      1. associate--l-99.7%

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

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

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

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

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

        \[\leadsto 1 + \color{blue}{\left(\frac{-y}{3 \cdot \sqrt{x}} - \frac{1}{x \cdot 9}\right)} \]
      7. neg-mul-199.7%

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

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

        \[\leadsto 1 + \left(\color{blue}{y \cdot \frac{-1}{3 \cdot \sqrt{x}}} - \frac{1}{x \cdot 9}\right) \]
      10. fmm-def99.7%

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

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

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{\color{blue}{-0.3333333333333333}}{\sqrt{x}}, -\frac{1}{x \cdot 9}\right) \]
      13. *-commutative99.7%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\frac{1}{\color{blue}{9 \cdot x}}\right) \]
      14. associate-/r*99.7%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\color{blue}{\frac{\frac{1}{9}}{x}}\right) \]
      15. distribute-neg-frac99.7%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \color{blue}{\frac{-\frac{1}{9}}{x}}\right) \]
      16. metadata-eval99.7%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-\color{blue}{0.1111111111111111}}{x}\right) \]
      17. metadata-eval99.7%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{\color{blue}{-0.1111111111111111}}{x}\right) \]
    3. Simplified99.7%

      \[\leadsto \color{blue}{1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-0.1111111111111111}{x}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around 0 99.1%

      \[\leadsto \color{blue}{1 - 0.1111111111111111 \cdot \frac{1}{x}} \]
    6. Step-by-step derivation
      1. associate-*r/99.0%

        \[\leadsto 1 - \color{blue}{\frac{0.1111111111111111 \cdot 1}{x}} \]
      2. metadata-eval99.0%

        \[\leadsto 1 - \frac{\color{blue}{0.1111111111111111}}{x} \]
    7. Simplified99.0%

      \[\leadsto \color{blue}{1 - \frac{0.1111111111111111}{x}} \]
    8. Step-by-step derivation
      1. clear-num99.0%

        \[\leadsto 1 - \color{blue}{\frac{1}{\frac{x}{0.1111111111111111}}} \]
      2. div-inv99.1%

        \[\leadsto 1 - \frac{1}{\color{blue}{x \cdot \frac{1}{0.1111111111111111}}} \]
      3. metadata-eval99.1%

        \[\leadsto 1 - \frac{1}{x \cdot \color{blue}{9}} \]
      4. inv-pow99.1%

        \[\leadsto 1 - \color{blue}{{\left(x \cdot 9\right)}^{-1}} \]
    9. Applied egg-rr99.1%

      \[\leadsto 1 - \color{blue}{{\left(x \cdot 9\right)}^{-1}} \]
    10. Step-by-step derivation
      1. unpow-199.1%

        \[\leadsto 1 - \color{blue}{\frac{1}{x \cdot 9}} \]
    11. Applied egg-rr99.1%

      \[\leadsto 1 - \color{blue}{\frac{1}{x \cdot 9}} \]

    if 1.1e47 < y

    1. Initial program 99.3%

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

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

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

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

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

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

        \[\leadsto 1 + \color{blue}{\left(\frac{-y}{3 \cdot \sqrt{x}} - \frac{1}{x \cdot 9}\right)} \]
      7. neg-mul-199.3%

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

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

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

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

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

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{\color{blue}{-0.3333333333333333}}{\sqrt{x}}, -\frac{1}{x \cdot 9}\right) \]
      13. *-commutative99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\frac{1}{\color{blue}{9 \cdot x}}\right) \]
      14. associate-/r*99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\color{blue}{\frac{\frac{1}{9}}{x}}\right) \]
      15. distribute-neg-frac99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \color{blue}{\frac{-\frac{1}{9}}{x}}\right) \]
      16. metadata-eval99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-\color{blue}{0.1111111111111111}}{x}\right) \]
      17. metadata-eval99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{\color{blue}{-0.1111111111111111}}{x}\right) \]
    3. Simplified99.5%

      \[\leadsto \color{blue}{1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-0.1111111111111111}{x}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 90.6%

      \[\leadsto \color{blue}{-0.3333333333333333 \cdot \left(\sqrt{\frac{1}{x}} \cdot y\right)} \]
    6. Step-by-step derivation
      1. associate-*r*90.8%

        \[\leadsto \color{blue}{\left(-0.3333333333333333 \cdot \sqrt{\frac{1}{x}}\right) \cdot y} \]
    7. Simplified90.8%

      \[\leadsto \color{blue}{\left(-0.3333333333333333 \cdot \sqrt{\frac{1}{x}}\right) \cdot y} \]
    8. Step-by-step derivation
      1. *-commutative90.8%

        \[\leadsto \color{blue}{y \cdot \left(-0.3333333333333333 \cdot \sqrt{\frac{1}{x}}\right)} \]
      2. sqrt-div90.8%

        \[\leadsto y \cdot \left(-0.3333333333333333 \cdot \color{blue}{\frac{\sqrt{1}}{\sqrt{x}}}\right) \]
      3. metadata-eval90.8%

        \[\leadsto y \cdot \left(-0.3333333333333333 \cdot \frac{\color{blue}{1}}{\sqrt{x}}\right) \]
      4. un-div-inv90.9%

        \[\leadsto y \cdot \color{blue}{\frac{-0.3333333333333333}{\sqrt{x}}} \]
      5. associate-/l*91.0%

        \[\leadsto \color{blue}{\frac{y \cdot -0.3333333333333333}{\sqrt{x}}} \]
    9. Applied egg-rr91.0%

      \[\leadsto \color{blue}{\frac{y \cdot -0.3333333333333333}{\sqrt{x}}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification95.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1 \cdot 10^{+55}:\\ \;\;\;\;\frac{{x}^{-0.5}}{\frac{-3}{y}}\\ \mathbf{elif}\;y \leq 1.1 \cdot 10^{+47}:\\ \;\;\;\;1 + \frac{-1}{x \cdot 9}\\ \mathbf{else}:\\ \;\;\;\;\frac{y \cdot -0.3333333333333333}{\sqrt{x}}\\ \end{array} \]
  5. Add Preprocessing

Alternative 7: 91.8% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -1.05 \cdot 10^{+55}:\\ \;\;\;\;y \cdot \left(-0.3333333333333333 \cdot {x}^{-0.5}\right)\\ \mathbf{elif}\;y \leq 1.1 \cdot 10^{+47}:\\ \;\;\;\;1 + \frac{-1}{x \cdot 9}\\ \mathbf{else}:\\ \;\;\;\;\frac{y \cdot -0.3333333333333333}{\sqrt{x}}\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (<= y -1.05e+55)
   (* y (* -0.3333333333333333 (pow x -0.5)))
   (if (<= y 1.1e+47)
     (+ 1.0 (/ -1.0 (* x 9.0)))
     (/ (* y -0.3333333333333333) (sqrt x)))))
double code(double x, double y) {
	double tmp;
	if (y <= -1.05e+55) {
		tmp = y * (-0.3333333333333333 * pow(x, -0.5));
	} else if (y <= 1.1e+47) {
		tmp = 1.0 + (-1.0 / (x * 9.0));
	} else {
		tmp = (y * -0.3333333333333333) / sqrt(x);
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if (y <= (-1.05d+55)) then
        tmp = y * ((-0.3333333333333333d0) * (x ** (-0.5d0)))
    else if (y <= 1.1d+47) then
        tmp = 1.0d0 + ((-1.0d0) / (x * 9.0d0))
    else
        tmp = (y * (-0.3333333333333333d0)) / sqrt(x)
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if (y <= -1.05e+55) {
		tmp = y * (-0.3333333333333333 * Math.pow(x, -0.5));
	} else if (y <= 1.1e+47) {
		tmp = 1.0 + (-1.0 / (x * 9.0));
	} else {
		tmp = (y * -0.3333333333333333) / Math.sqrt(x);
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if y <= -1.05e+55:
		tmp = y * (-0.3333333333333333 * math.pow(x, -0.5))
	elif y <= 1.1e+47:
		tmp = 1.0 + (-1.0 / (x * 9.0))
	else:
		tmp = (y * -0.3333333333333333) / math.sqrt(x)
	return tmp
function code(x, y)
	tmp = 0.0
	if (y <= -1.05e+55)
		tmp = Float64(y * Float64(-0.3333333333333333 * (x ^ -0.5)));
	elseif (y <= 1.1e+47)
		tmp = Float64(1.0 + Float64(-1.0 / Float64(x * 9.0)));
	else
		tmp = Float64(Float64(y * -0.3333333333333333) / sqrt(x));
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if (y <= -1.05e+55)
		tmp = y * (-0.3333333333333333 * (x ^ -0.5));
	elseif (y <= 1.1e+47)
		tmp = 1.0 + (-1.0 / (x * 9.0));
	else
		tmp = (y * -0.3333333333333333) / sqrt(x);
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[LessEqual[y, -1.05e+55], N[(y * N[(-0.3333333333333333 * N[Power[x, -0.5], $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 1.1e+47], N[(1.0 + N[(-1.0 / N[(x * 9.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(y * -0.3333333333333333), $MachinePrecision] / N[Sqrt[x], $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -1.05 \cdot 10^{+55}:\\
\;\;\;\;y \cdot \left(-0.3333333333333333 \cdot {x}^{-0.5}\right)\\

\mathbf{elif}\;y \leq 1.1 \cdot 10^{+47}:\\
\;\;\;\;1 + \frac{-1}{x \cdot 9}\\

\mathbf{else}:\\
\;\;\;\;\frac{y \cdot -0.3333333333333333}{\sqrt{x}}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -1.05e55

    1. Initial program 99.5%

      \[\left(1 - \frac{1}{x \cdot 9}\right) - \frac{y}{3 \cdot \sqrt{x}} \]
    2. Step-by-step derivation
      1. associate--l-99.5%

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

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

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

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

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

        \[\leadsto 1 + \color{blue}{\left(\frac{-y}{3 \cdot \sqrt{x}} - \frac{1}{x \cdot 9}\right)} \]
      7. neg-mul-199.5%

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

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

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

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

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

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{\color{blue}{-0.3333333333333333}}{\sqrt{x}}, -\frac{1}{x \cdot 9}\right) \]
      13. *-commutative99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\frac{1}{\color{blue}{9 \cdot x}}\right) \]
      14. associate-/r*99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\color{blue}{\frac{\frac{1}{9}}{x}}\right) \]
      15. distribute-neg-frac99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \color{blue}{\frac{-\frac{1}{9}}{x}}\right) \]
      16. metadata-eval99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-\color{blue}{0.1111111111111111}}{x}\right) \]
      17. metadata-eval99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{\color{blue}{-0.1111111111111111}}{x}\right) \]
    3. Simplified99.5%

      \[\leadsto \color{blue}{1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-0.1111111111111111}{x}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 87.9%

      \[\leadsto \color{blue}{-0.3333333333333333 \cdot \left(\sqrt{\frac{1}{x}} \cdot y\right)} \]
    6. Step-by-step derivation
      1. associate-*r*89.8%

        \[\leadsto \color{blue}{\left(-0.3333333333333333 \cdot \sqrt{\frac{1}{x}}\right) \cdot y} \]
    7. Simplified89.8%

      \[\leadsto \color{blue}{\left(-0.3333333333333333 \cdot \sqrt{\frac{1}{x}}\right) \cdot y} \]
    8. Step-by-step derivation
      1. *-un-lft-identity89.8%

        \[\leadsto \left(-0.3333333333333333 \cdot \color{blue}{\left(1 \cdot \sqrt{\frac{1}{x}}\right)}\right) \cdot y \]
      2. inv-pow89.8%

        \[\leadsto \left(-0.3333333333333333 \cdot \left(1 \cdot \sqrt{\color{blue}{{x}^{-1}}}\right)\right) \cdot y \]
      3. sqrt-pow189.8%

        \[\leadsto \left(-0.3333333333333333 \cdot \left(1 \cdot \color{blue}{{x}^{\left(\frac{-1}{2}\right)}}\right)\right) \cdot y \]
      4. metadata-eval89.8%

        \[\leadsto \left(-0.3333333333333333 \cdot \left(1 \cdot {x}^{\color{blue}{-0.5}}\right)\right) \cdot y \]
    9. Applied egg-rr89.8%

      \[\leadsto \left(-0.3333333333333333 \cdot \color{blue}{\left(1 \cdot {x}^{-0.5}\right)}\right) \cdot y \]
    10. Step-by-step derivation
      1. *-lft-identity89.8%

        \[\leadsto \left(-0.3333333333333333 \cdot \color{blue}{{x}^{-0.5}}\right) \cdot y \]
    11. Simplified89.8%

      \[\leadsto \left(-0.3333333333333333 \cdot \color{blue}{{x}^{-0.5}}\right) \cdot y \]

    if -1.05e55 < y < 1.1e47

    1. Initial program 99.7%

      \[\left(1 - \frac{1}{x \cdot 9}\right) - \frac{y}{3 \cdot \sqrt{x}} \]
    2. Step-by-step derivation
      1. associate--l-99.7%

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

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

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

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

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

        \[\leadsto 1 + \color{blue}{\left(\frac{-y}{3 \cdot \sqrt{x}} - \frac{1}{x \cdot 9}\right)} \]
      7. neg-mul-199.7%

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

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

        \[\leadsto 1 + \left(\color{blue}{y \cdot \frac{-1}{3 \cdot \sqrt{x}}} - \frac{1}{x \cdot 9}\right) \]
      10. fmm-def99.7%

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

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

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{\color{blue}{-0.3333333333333333}}{\sqrt{x}}, -\frac{1}{x \cdot 9}\right) \]
      13. *-commutative99.7%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\frac{1}{\color{blue}{9 \cdot x}}\right) \]
      14. associate-/r*99.7%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\color{blue}{\frac{\frac{1}{9}}{x}}\right) \]
      15. distribute-neg-frac99.7%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \color{blue}{\frac{-\frac{1}{9}}{x}}\right) \]
      16. metadata-eval99.7%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-\color{blue}{0.1111111111111111}}{x}\right) \]
      17. metadata-eval99.7%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{\color{blue}{-0.1111111111111111}}{x}\right) \]
    3. Simplified99.7%

      \[\leadsto \color{blue}{1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-0.1111111111111111}{x}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around 0 99.1%

      \[\leadsto \color{blue}{1 - 0.1111111111111111 \cdot \frac{1}{x}} \]
    6. Step-by-step derivation
      1. associate-*r/99.0%

        \[\leadsto 1 - \color{blue}{\frac{0.1111111111111111 \cdot 1}{x}} \]
      2. metadata-eval99.0%

        \[\leadsto 1 - \frac{\color{blue}{0.1111111111111111}}{x} \]
    7. Simplified99.0%

      \[\leadsto \color{blue}{1 - \frac{0.1111111111111111}{x}} \]
    8. Step-by-step derivation
      1. clear-num99.0%

        \[\leadsto 1 - \color{blue}{\frac{1}{\frac{x}{0.1111111111111111}}} \]
      2. div-inv99.1%

        \[\leadsto 1 - \frac{1}{\color{blue}{x \cdot \frac{1}{0.1111111111111111}}} \]
      3. metadata-eval99.1%

        \[\leadsto 1 - \frac{1}{x \cdot \color{blue}{9}} \]
      4. inv-pow99.1%

        \[\leadsto 1 - \color{blue}{{\left(x \cdot 9\right)}^{-1}} \]
    9. Applied egg-rr99.1%

      \[\leadsto 1 - \color{blue}{{\left(x \cdot 9\right)}^{-1}} \]
    10. Step-by-step derivation
      1. unpow-199.1%

        \[\leadsto 1 - \color{blue}{\frac{1}{x \cdot 9}} \]
    11. Applied egg-rr99.1%

      \[\leadsto 1 - \color{blue}{\frac{1}{x \cdot 9}} \]

    if 1.1e47 < y

    1. Initial program 99.3%

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

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

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

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

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

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

        \[\leadsto 1 + \color{blue}{\left(\frac{-y}{3 \cdot \sqrt{x}} - \frac{1}{x \cdot 9}\right)} \]
      7. neg-mul-199.3%

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

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

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

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

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

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{\color{blue}{-0.3333333333333333}}{\sqrt{x}}, -\frac{1}{x \cdot 9}\right) \]
      13. *-commutative99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\frac{1}{\color{blue}{9 \cdot x}}\right) \]
      14. associate-/r*99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\color{blue}{\frac{\frac{1}{9}}{x}}\right) \]
      15. distribute-neg-frac99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \color{blue}{\frac{-\frac{1}{9}}{x}}\right) \]
      16. metadata-eval99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-\color{blue}{0.1111111111111111}}{x}\right) \]
      17. metadata-eval99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{\color{blue}{-0.1111111111111111}}{x}\right) \]
    3. Simplified99.5%

      \[\leadsto \color{blue}{1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-0.1111111111111111}{x}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 90.6%

      \[\leadsto \color{blue}{-0.3333333333333333 \cdot \left(\sqrt{\frac{1}{x}} \cdot y\right)} \]
    6. Step-by-step derivation
      1. associate-*r*90.8%

        \[\leadsto \color{blue}{\left(-0.3333333333333333 \cdot \sqrt{\frac{1}{x}}\right) \cdot y} \]
    7. Simplified90.8%

      \[\leadsto \color{blue}{\left(-0.3333333333333333 \cdot \sqrt{\frac{1}{x}}\right) \cdot y} \]
    8. Step-by-step derivation
      1. *-commutative90.8%

        \[\leadsto \color{blue}{y \cdot \left(-0.3333333333333333 \cdot \sqrt{\frac{1}{x}}\right)} \]
      2. sqrt-div90.8%

        \[\leadsto y \cdot \left(-0.3333333333333333 \cdot \color{blue}{\frac{\sqrt{1}}{\sqrt{x}}}\right) \]
      3. metadata-eval90.8%

        \[\leadsto y \cdot \left(-0.3333333333333333 \cdot \frac{\color{blue}{1}}{\sqrt{x}}\right) \]
      4. un-div-inv90.9%

        \[\leadsto y \cdot \color{blue}{\frac{-0.3333333333333333}{\sqrt{x}}} \]
      5. associate-/l*91.0%

        \[\leadsto \color{blue}{\frac{y \cdot -0.3333333333333333}{\sqrt{x}}} \]
    9. Applied egg-rr91.0%

      \[\leadsto \color{blue}{\frac{y \cdot -0.3333333333333333}{\sqrt{x}}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification95.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1.05 \cdot 10^{+55}:\\ \;\;\;\;y \cdot \left(-0.3333333333333333 \cdot {x}^{-0.5}\right)\\ \mathbf{elif}\;y \leq 1.1 \cdot 10^{+47}:\\ \;\;\;\;1 + \frac{-1}{x \cdot 9}\\ \mathbf{else}:\\ \;\;\;\;\frac{y \cdot -0.3333333333333333}{\sqrt{x}}\\ \end{array} \]
  5. Add Preprocessing

Alternative 8: 91.8% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -3.5 \cdot 10^{+53}:\\ \;\;\;\;\frac{y}{-3 \cdot \sqrt{x}}\\ \mathbf{elif}\;y \leq 1.1 \cdot 10^{+47}:\\ \;\;\;\;1 + \frac{-1}{x \cdot 9}\\ \mathbf{else}:\\ \;\;\;\;\frac{y \cdot -0.3333333333333333}{\sqrt{x}}\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (<= y -3.5e+53)
   (/ y (* -3.0 (sqrt x)))
   (if (<= y 1.1e+47)
     (+ 1.0 (/ -1.0 (* x 9.0)))
     (/ (* y -0.3333333333333333) (sqrt x)))))
double code(double x, double y) {
	double tmp;
	if (y <= -3.5e+53) {
		tmp = y / (-3.0 * sqrt(x));
	} else if (y <= 1.1e+47) {
		tmp = 1.0 + (-1.0 / (x * 9.0));
	} else {
		tmp = (y * -0.3333333333333333) / sqrt(x);
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if (y <= (-3.5d+53)) then
        tmp = y / ((-3.0d0) * sqrt(x))
    else if (y <= 1.1d+47) then
        tmp = 1.0d0 + ((-1.0d0) / (x * 9.0d0))
    else
        tmp = (y * (-0.3333333333333333d0)) / sqrt(x)
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if (y <= -3.5e+53) {
		tmp = y / (-3.0 * Math.sqrt(x));
	} else if (y <= 1.1e+47) {
		tmp = 1.0 + (-1.0 / (x * 9.0));
	} else {
		tmp = (y * -0.3333333333333333) / Math.sqrt(x);
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if y <= -3.5e+53:
		tmp = y / (-3.0 * math.sqrt(x))
	elif y <= 1.1e+47:
		tmp = 1.0 + (-1.0 / (x * 9.0))
	else:
		tmp = (y * -0.3333333333333333) / math.sqrt(x)
	return tmp
function code(x, y)
	tmp = 0.0
	if (y <= -3.5e+53)
		tmp = Float64(y / Float64(-3.0 * sqrt(x)));
	elseif (y <= 1.1e+47)
		tmp = Float64(1.0 + Float64(-1.0 / Float64(x * 9.0)));
	else
		tmp = Float64(Float64(y * -0.3333333333333333) / sqrt(x));
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if (y <= -3.5e+53)
		tmp = y / (-3.0 * sqrt(x));
	elseif (y <= 1.1e+47)
		tmp = 1.0 + (-1.0 / (x * 9.0));
	else
		tmp = (y * -0.3333333333333333) / sqrt(x);
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[LessEqual[y, -3.5e+53], N[(y / N[(-3.0 * N[Sqrt[x], $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 1.1e+47], N[(1.0 + N[(-1.0 / N[(x * 9.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(y * -0.3333333333333333), $MachinePrecision] / N[Sqrt[x], $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -3.5 \cdot 10^{+53}:\\
\;\;\;\;\frac{y}{-3 \cdot \sqrt{x}}\\

\mathbf{elif}\;y \leq 1.1 \cdot 10^{+47}:\\
\;\;\;\;1 + \frac{-1}{x \cdot 9}\\

\mathbf{else}:\\
\;\;\;\;\frac{y \cdot -0.3333333333333333}{\sqrt{x}}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -3.50000000000000019e53

    1. Initial program 99.5%

      \[\left(1 - \frac{1}{x \cdot 9}\right) - \frac{y}{3 \cdot \sqrt{x}} \]
    2. Step-by-step derivation
      1. associate--l-99.5%

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

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

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

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

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

        \[\leadsto 1 + \color{blue}{\left(\frac{-y}{3 \cdot \sqrt{x}} - \frac{1}{x \cdot 9}\right)} \]
      7. neg-mul-199.5%

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

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

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

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

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

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{\color{blue}{-0.3333333333333333}}{\sqrt{x}}, -\frac{1}{x \cdot 9}\right) \]
      13. *-commutative99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\frac{1}{\color{blue}{9 \cdot x}}\right) \]
      14. associate-/r*99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\color{blue}{\frac{\frac{1}{9}}{x}}\right) \]
      15. distribute-neg-frac99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \color{blue}{\frac{-\frac{1}{9}}{x}}\right) \]
      16. metadata-eval99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-\color{blue}{0.1111111111111111}}{x}\right) \]
      17. metadata-eval99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{\color{blue}{-0.1111111111111111}}{x}\right) \]
    3. Simplified99.5%

      \[\leadsto \color{blue}{1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-0.1111111111111111}{x}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 87.9%

      \[\leadsto \color{blue}{-0.3333333333333333 \cdot \left(\sqrt{\frac{1}{x}} \cdot y\right)} \]
    6. Step-by-step derivation
      1. associate-*r*89.8%

        \[\leadsto \color{blue}{\left(-0.3333333333333333 \cdot \sqrt{\frac{1}{x}}\right) \cdot y} \]
    7. Simplified89.8%

      \[\leadsto \color{blue}{\left(-0.3333333333333333 \cdot \sqrt{\frac{1}{x}}\right) \cdot y} \]
    8. Step-by-step derivation
      1. *-commutative89.8%

        \[\leadsto \color{blue}{y \cdot \left(-0.3333333333333333 \cdot \sqrt{\frac{1}{x}}\right)} \]
      2. associate-*r*89.7%

        \[\leadsto \color{blue}{\left(y \cdot -0.3333333333333333\right) \cdot \sqrt{\frac{1}{x}}} \]
      3. metadata-eval89.7%

        \[\leadsto \left(y \cdot \color{blue}{\frac{1}{-3}}\right) \cdot \sqrt{\frac{1}{x}} \]
      4. div-inv89.8%

        \[\leadsto \color{blue}{\frac{y}{-3}} \cdot \sqrt{\frac{1}{x}} \]
      5. sqrt-div89.7%

        \[\leadsto \frac{y}{-3} \cdot \color{blue}{\frac{\sqrt{1}}{\sqrt{x}}} \]
      6. metadata-eval89.7%

        \[\leadsto \frac{y}{-3} \cdot \frac{\color{blue}{1}}{\sqrt{x}} \]
      7. frac-times89.8%

        \[\leadsto \color{blue}{\frac{y \cdot 1}{-3 \cdot \sqrt{x}}} \]
      8. *-commutative89.8%

        \[\leadsto \frac{\color{blue}{1 \cdot y}}{-3 \cdot \sqrt{x}} \]
      9. *-un-lft-identity89.8%

        \[\leadsto \frac{\color{blue}{y}}{-3 \cdot \sqrt{x}} \]
    9. Applied egg-rr89.8%

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

    if -3.50000000000000019e53 < y < 1.1e47

    1. Initial program 99.7%

      \[\left(1 - \frac{1}{x \cdot 9}\right) - \frac{y}{3 \cdot \sqrt{x}} \]
    2. Step-by-step derivation
      1. associate--l-99.7%

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

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

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

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

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

        \[\leadsto 1 + \color{blue}{\left(\frac{-y}{3 \cdot \sqrt{x}} - \frac{1}{x \cdot 9}\right)} \]
      7. neg-mul-199.7%

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

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

        \[\leadsto 1 + \left(\color{blue}{y \cdot \frac{-1}{3 \cdot \sqrt{x}}} - \frac{1}{x \cdot 9}\right) \]
      10. fmm-def99.7%

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

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

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{\color{blue}{-0.3333333333333333}}{\sqrt{x}}, -\frac{1}{x \cdot 9}\right) \]
      13. *-commutative99.7%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\frac{1}{\color{blue}{9 \cdot x}}\right) \]
      14. associate-/r*99.7%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\color{blue}{\frac{\frac{1}{9}}{x}}\right) \]
      15. distribute-neg-frac99.7%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \color{blue}{\frac{-\frac{1}{9}}{x}}\right) \]
      16. metadata-eval99.7%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-\color{blue}{0.1111111111111111}}{x}\right) \]
      17. metadata-eval99.7%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{\color{blue}{-0.1111111111111111}}{x}\right) \]
    3. Simplified99.7%

      \[\leadsto \color{blue}{1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-0.1111111111111111}{x}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around 0 99.1%

      \[\leadsto \color{blue}{1 - 0.1111111111111111 \cdot \frac{1}{x}} \]
    6. Step-by-step derivation
      1. associate-*r/99.0%

        \[\leadsto 1 - \color{blue}{\frac{0.1111111111111111 \cdot 1}{x}} \]
      2. metadata-eval99.0%

        \[\leadsto 1 - \frac{\color{blue}{0.1111111111111111}}{x} \]
    7. Simplified99.0%

      \[\leadsto \color{blue}{1 - \frac{0.1111111111111111}{x}} \]
    8. Step-by-step derivation
      1. clear-num99.0%

        \[\leadsto 1 - \color{blue}{\frac{1}{\frac{x}{0.1111111111111111}}} \]
      2. div-inv99.1%

        \[\leadsto 1 - \frac{1}{\color{blue}{x \cdot \frac{1}{0.1111111111111111}}} \]
      3. metadata-eval99.1%

        \[\leadsto 1 - \frac{1}{x \cdot \color{blue}{9}} \]
      4. inv-pow99.1%

        \[\leadsto 1 - \color{blue}{{\left(x \cdot 9\right)}^{-1}} \]
    9. Applied egg-rr99.1%

      \[\leadsto 1 - \color{blue}{{\left(x \cdot 9\right)}^{-1}} \]
    10. Step-by-step derivation
      1. unpow-199.1%

        \[\leadsto 1 - \color{blue}{\frac{1}{x \cdot 9}} \]
    11. Applied egg-rr99.1%

      \[\leadsto 1 - \color{blue}{\frac{1}{x \cdot 9}} \]

    if 1.1e47 < y

    1. Initial program 99.3%

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

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

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

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

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

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

        \[\leadsto 1 + \color{blue}{\left(\frac{-y}{3 \cdot \sqrt{x}} - \frac{1}{x \cdot 9}\right)} \]
      7. neg-mul-199.3%

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

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

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

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

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

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{\color{blue}{-0.3333333333333333}}{\sqrt{x}}, -\frac{1}{x \cdot 9}\right) \]
      13. *-commutative99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\frac{1}{\color{blue}{9 \cdot x}}\right) \]
      14. associate-/r*99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\color{blue}{\frac{\frac{1}{9}}{x}}\right) \]
      15. distribute-neg-frac99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \color{blue}{\frac{-\frac{1}{9}}{x}}\right) \]
      16. metadata-eval99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-\color{blue}{0.1111111111111111}}{x}\right) \]
      17. metadata-eval99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{\color{blue}{-0.1111111111111111}}{x}\right) \]
    3. Simplified99.5%

      \[\leadsto \color{blue}{1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-0.1111111111111111}{x}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 90.6%

      \[\leadsto \color{blue}{-0.3333333333333333 \cdot \left(\sqrt{\frac{1}{x}} \cdot y\right)} \]
    6. Step-by-step derivation
      1. associate-*r*90.8%

        \[\leadsto \color{blue}{\left(-0.3333333333333333 \cdot \sqrt{\frac{1}{x}}\right) \cdot y} \]
    7. Simplified90.8%

      \[\leadsto \color{blue}{\left(-0.3333333333333333 \cdot \sqrt{\frac{1}{x}}\right) \cdot y} \]
    8. Step-by-step derivation
      1. *-commutative90.8%

        \[\leadsto \color{blue}{y \cdot \left(-0.3333333333333333 \cdot \sqrt{\frac{1}{x}}\right)} \]
      2. sqrt-div90.8%

        \[\leadsto y \cdot \left(-0.3333333333333333 \cdot \color{blue}{\frac{\sqrt{1}}{\sqrt{x}}}\right) \]
      3. metadata-eval90.8%

        \[\leadsto y \cdot \left(-0.3333333333333333 \cdot \frac{\color{blue}{1}}{\sqrt{x}}\right) \]
      4. un-div-inv90.9%

        \[\leadsto y \cdot \color{blue}{\frac{-0.3333333333333333}{\sqrt{x}}} \]
      5. associate-/l*91.0%

        \[\leadsto \color{blue}{\frac{y \cdot -0.3333333333333333}{\sqrt{x}}} \]
    9. Applied egg-rr91.0%

      \[\leadsto \color{blue}{\frac{y \cdot -0.3333333333333333}{\sqrt{x}}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification95.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -3.5 \cdot 10^{+53}:\\ \;\;\;\;\frac{y}{-3 \cdot \sqrt{x}}\\ \mathbf{elif}\;y \leq 1.1 \cdot 10^{+47}:\\ \;\;\;\;1 + \frac{-1}{x \cdot 9}\\ \mathbf{else}:\\ \;\;\;\;\frac{y \cdot -0.3333333333333333}{\sqrt{x}}\\ \end{array} \]
  5. Add Preprocessing

Alternative 9: 98.6% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq 0.112:\\ \;\;\;\;\frac{-0.3333333333333333 \cdot \left(y \cdot \sqrt{x}\right) - 0.1111111111111111}{x}\\ \mathbf{else}:\\ \;\;\;\;1 + y \cdot \frac{-0.3333333333333333}{\sqrt{x}}\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (<= x 0.112)
   (/ (- (* -0.3333333333333333 (* y (sqrt x))) 0.1111111111111111) x)
   (+ 1.0 (* y (/ -0.3333333333333333 (sqrt x))))))
double code(double x, double y) {
	double tmp;
	if (x <= 0.112) {
		tmp = ((-0.3333333333333333 * (y * sqrt(x))) - 0.1111111111111111) / x;
	} else {
		tmp = 1.0 + (y * (-0.3333333333333333 / sqrt(x)));
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if (x <= 0.112d0) then
        tmp = (((-0.3333333333333333d0) * (y * sqrt(x))) - 0.1111111111111111d0) / x
    else
        tmp = 1.0d0 + (y * ((-0.3333333333333333d0) / sqrt(x)))
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if (x <= 0.112) {
		tmp = ((-0.3333333333333333 * (y * Math.sqrt(x))) - 0.1111111111111111) / x;
	} else {
		tmp = 1.0 + (y * (-0.3333333333333333 / Math.sqrt(x)));
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if x <= 0.112:
		tmp = ((-0.3333333333333333 * (y * math.sqrt(x))) - 0.1111111111111111) / x
	else:
		tmp = 1.0 + (y * (-0.3333333333333333 / math.sqrt(x)))
	return tmp
function code(x, y)
	tmp = 0.0
	if (x <= 0.112)
		tmp = Float64(Float64(Float64(-0.3333333333333333 * Float64(y * sqrt(x))) - 0.1111111111111111) / x);
	else
		tmp = Float64(1.0 + Float64(y * Float64(-0.3333333333333333 / sqrt(x))));
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if (x <= 0.112)
		tmp = ((-0.3333333333333333 * (y * sqrt(x))) - 0.1111111111111111) / x;
	else
		tmp = 1.0 + (y * (-0.3333333333333333 / sqrt(x)));
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[LessEqual[x, 0.112], N[(N[(N[(-0.3333333333333333 * N[(y * N[Sqrt[x], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - 0.1111111111111111), $MachinePrecision] / x), $MachinePrecision], N[(1.0 + N[(y * N[(-0.3333333333333333 / N[Sqrt[x], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq 0.112:\\
\;\;\;\;\frac{-0.3333333333333333 \cdot \left(y \cdot \sqrt{x}\right) - 0.1111111111111111}{x}\\

\mathbf{else}:\\
\;\;\;\;1 + y \cdot \frac{-0.3333333333333333}{\sqrt{x}}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < 0.112000000000000002

    1. Initial program 99.5%

      \[\left(1 - \frac{1}{x \cdot 9}\right) - \frac{y}{3 \cdot \sqrt{x}} \]
    2. Step-by-step derivation
      1. associate--l-99.5%

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

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

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

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

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

        \[\leadsto 1 + \color{blue}{\left(\frac{-y}{3 \cdot \sqrt{x}} - \frac{1}{x \cdot 9}\right)} \]
      7. neg-mul-199.5%

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

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

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

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

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

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{\color{blue}{-0.3333333333333333}}{\sqrt{x}}, -\frac{1}{x \cdot 9}\right) \]
      13. *-commutative99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\frac{1}{\color{blue}{9 \cdot x}}\right) \]
      14. associate-/r*99.4%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\color{blue}{\frac{\frac{1}{9}}{x}}\right) \]
      15. distribute-neg-frac99.4%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \color{blue}{\frac{-\frac{1}{9}}{x}}\right) \]
      16. metadata-eval99.4%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-\color{blue}{0.1111111111111111}}{x}\right) \]
      17. metadata-eval99.4%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{\color{blue}{-0.1111111111111111}}{x}\right) \]
    3. Simplified99.4%

      \[\leadsto \color{blue}{1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-0.1111111111111111}{x}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in x around 0 99.4%

      \[\leadsto \color{blue}{\frac{-0.3333333333333333 \cdot \left(\sqrt{x} \cdot y\right) - 0.1111111111111111}{x}} \]

    if 0.112000000000000002 < x

    1. Initial program 99.8%

      \[\left(1 - \frac{1}{x \cdot 9}\right) - \frac{y}{3 \cdot \sqrt{x}} \]
    2. Step-by-step derivation
      1. sub-neg99.8%

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

        \[\leadsto \left(1 - \frac{1}{\color{blue}{9 \cdot x}}\right) + \left(-\frac{y}{3 \cdot \sqrt{x}}\right) \]
      3. associate-/r*99.8%

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

        \[\leadsto \left(1 - \frac{\color{blue}{0.1111111111111111}}{x}\right) + \left(-\frac{y}{3 \cdot \sqrt{x}}\right) \]
      5. distribute-frac-neg99.8%

        \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{\frac{-y}{3 \cdot \sqrt{x}}} \]
      6. neg-mul-199.8%

        \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \frac{\color{blue}{-1 \cdot y}}{3 \cdot \sqrt{x}} \]
      7. times-frac99.7%

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

        \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{-0.3333333333333333} \cdot \frac{y}{\sqrt{x}} \]
    3. Simplified99.7%

      \[\leadsto \color{blue}{\left(1 - \frac{0.1111111111111111}{x}\right) + -0.3333333333333333 \cdot \frac{y}{\sqrt{x}}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 97.6%

      \[\leadsto \color{blue}{1} + -0.3333333333333333 \cdot \frac{y}{\sqrt{x}} \]
    6. Step-by-step derivation
      1. *-commutative97.6%

        \[\leadsto 1 + \color{blue}{\frac{y}{\sqrt{x}} \cdot -0.3333333333333333} \]
      2. associate-*l/97.7%

        \[\leadsto 1 + \color{blue}{\frac{y \cdot -0.3333333333333333}{\sqrt{x}}} \]
      3. associate-*r/97.7%

        \[\leadsto 1 + \color{blue}{y \cdot \frac{-0.3333333333333333}{\sqrt{x}}} \]
      4. add-sqr-sqrt0.0%

        \[\leadsto 1 + y \cdot \color{blue}{\left(\sqrt{\frac{-0.3333333333333333}{\sqrt{x}}} \cdot \sqrt{\frac{-0.3333333333333333}{\sqrt{x}}}\right)} \]
      5. sqrt-unprod57.1%

        \[\leadsto 1 + y \cdot \color{blue}{\sqrt{\frac{-0.3333333333333333}{\sqrt{x}} \cdot \frac{-0.3333333333333333}{\sqrt{x}}}} \]
      6. frac-times57.1%

        \[\leadsto 1 + y \cdot \sqrt{\color{blue}{\frac{-0.3333333333333333 \cdot -0.3333333333333333}{\sqrt{x} \cdot \sqrt{x}}}} \]
      7. metadata-eval57.1%

        \[\leadsto 1 + y \cdot \sqrt{\frac{\color{blue}{0.1111111111111111}}{\sqrt{x} \cdot \sqrt{x}}} \]
      8. add-sqr-sqrt57.1%

        \[\leadsto 1 + y \cdot \sqrt{\frac{0.1111111111111111}{\color{blue}{x}}} \]
      9. clear-num57.1%

        \[\leadsto 1 + y \cdot \sqrt{\color{blue}{\frac{1}{\frac{x}{0.1111111111111111}}}} \]
      10. sqrt-div57.1%

        \[\leadsto 1 + y \cdot \color{blue}{\frac{\sqrt{1}}{\sqrt{\frac{x}{0.1111111111111111}}}} \]
      11. div-inv57.1%

        \[\leadsto 1 + y \cdot \frac{\sqrt{1}}{\sqrt{\color{blue}{x \cdot \frac{1}{0.1111111111111111}}}} \]
      12. metadata-eval57.1%

        \[\leadsto 1 + y \cdot \frac{\sqrt{1}}{\sqrt{x \cdot \color{blue}{9}}} \]
      13. sqrt-div57.1%

        \[\leadsto 1 + y \cdot \color{blue}{\sqrt{\frac{1}{x \cdot 9}}} \]
      14. sqrt-div57.1%

        \[\leadsto 1 + y \cdot \color{blue}{\frac{\sqrt{1}}{\sqrt{x \cdot 9}}} \]
      15. metadata-eval57.1%

        \[\leadsto 1 + y \cdot \frac{\color{blue}{1}}{\sqrt{x \cdot 9}} \]
      16. sqrt-prod57.1%

        \[\leadsto 1 + y \cdot \frac{1}{\color{blue}{\sqrt{x} \cdot \sqrt{9}}} \]
      17. metadata-eval57.1%

        \[\leadsto 1 + y \cdot \frac{1}{\sqrt{x} \cdot \color{blue}{3}} \]
      18. *-commutative57.1%

        \[\leadsto 1 + y \cdot \frac{1}{\color{blue}{3 \cdot \sqrt{x}}} \]
      19. div-inv57.1%

        \[\leadsto 1 + \color{blue}{\frac{y}{3 \cdot \sqrt{x}}} \]
      20. clear-num57.1%

        \[\leadsto 1 + \color{blue}{\frac{1}{\frac{3 \cdot \sqrt{x}}{y}}} \]
      21. *-commutative57.1%

        \[\leadsto 1 + \frac{1}{\frac{\color{blue}{\sqrt{x} \cdot 3}}{y}} \]
      22. associate-/l*57.1%

        \[\leadsto 1 + \frac{1}{\color{blue}{\sqrt{x} \cdot \frac{3}{y}}} \]
    7. Applied egg-rr57.1%

      \[\leadsto 1 + \color{blue}{\frac{1}{\sqrt{x} \cdot \frac{3}{y}}} \]
    8. Step-by-step derivation
      1. associate-*r/57.1%

        \[\leadsto 1 + \frac{1}{\color{blue}{\frac{\sqrt{x} \cdot 3}{y}}} \]
      2. associate-/r/57.1%

        \[\leadsto 1 + \color{blue}{\frac{1}{\sqrt{x} \cdot 3} \cdot y} \]
      3. *-commutative57.1%

        \[\leadsto 1 + \frac{1}{\color{blue}{3 \cdot \sqrt{x}}} \cdot y \]
      4. associate-/r*57.1%

        \[\leadsto 1 + \color{blue}{\frac{\frac{1}{3}}{\sqrt{x}}} \cdot y \]
      5. metadata-eval57.1%

        \[\leadsto 1 + \frac{\color{blue}{0.3333333333333333}}{\sqrt{x}} \cdot y \]
      6. unpow1/257.1%

        \[\leadsto 1 + \frac{0.3333333333333333}{\color{blue}{{x}^{0.5}}} \cdot y \]
      7. metadata-eval57.1%

        \[\leadsto 1 + \frac{0.3333333333333333}{{x}^{\color{blue}{\left(2 \cdot 0.25\right)}}} \cdot y \]
      8. pow-sqr57.1%

        \[\leadsto 1 + \frac{0.3333333333333333}{\color{blue}{{x}^{0.25} \cdot {x}^{0.25}}} \cdot y \]
      9. metadata-eval57.1%

        \[\leadsto 1 + \frac{\color{blue}{\left|-0.3333333333333333\right|}}{{x}^{0.25} \cdot {x}^{0.25}} \cdot y \]
      10. fabs-sqr57.1%

        \[\leadsto 1 + \frac{\left|-0.3333333333333333\right|}{\color{blue}{\left|{x}^{0.25} \cdot {x}^{0.25}\right|}} \cdot y \]
      11. pow-sqr57.1%

        \[\leadsto 1 + \frac{\left|-0.3333333333333333\right|}{\left|\color{blue}{{x}^{\left(2 \cdot 0.25\right)}}\right|} \cdot y \]
      12. metadata-eval57.1%

        \[\leadsto 1 + \frac{\left|-0.3333333333333333\right|}{\left|{x}^{\color{blue}{0.5}}\right|} \cdot y \]
      13. unpow1/257.1%

        \[\leadsto 1 + \frac{\left|-0.3333333333333333\right|}{\left|\color{blue}{\sqrt{x}}\right|} \cdot y \]
      14. fabs-div57.1%

        \[\leadsto 1 + \color{blue}{\left|\frac{-0.3333333333333333}{\sqrt{x}}\right|} \cdot y \]
      15. rem-square-sqrt0.0%

        \[\leadsto 1 + \left|\color{blue}{\sqrt{\frac{-0.3333333333333333}{\sqrt{x}}} \cdot \sqrt{\frac{-0.3333333333333333}{\sqrt{x}}}}\right| \cdot y \]
      16. fabs-sqr0.0%

        \[\leadsto 1 + \color{blue}{\left(\sqrt{\frac{-0.3333333333333333}{\sqrt{x}}} \cdot \sqrt{\frac{-0.3333333333333333}{\sqrt{x}}}\right)} \cdot y \]
      17. rem-square-sqrt97.7%

        \[\leadsto 1 + \color{blue}{\frac{-0.3333333333333333}{\sqrt{x}}} \cdot y \]
      18. *-commutative97.7%

        \[\leadsto 1 + \color{blue}{y \cdot \frac{-0.3333333333333333}{\sqrt{x}}} \]
    9. Simplified97.7%

      \[\leadsto 1 + \color{blue}{y \cdot \frac{-0.3333333333333333}{\sqrt{x}}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification98.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq 0.112:\\ \;\;\;\;\frac{-0.3333333333333333 \cdot \left(y \cdot \sqrt{x}\right) - 0.1111111111111111}{x}\\ \mathbf{else}:\\ \;\;\;\;1 + y \cdot \frac{-0.3333333333333333}{\sqrt{x}}\\ \end{array} \]
  5. Add Preprocessing

Alternative 10: 99.6% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \left(1 - \frac{0.1111111111111111}{x}\right) + \frac{-0.3333333333333333}{\frac{\sqrt{x}}{y}} \end{array} \]
(FPCore (x y)
 :precision binary64
 (+ (- 1.0 (/ 0.1111111111111111 x)) (/ -0.3333333333333333 (/ (sqrt x) y))))
double code(double x, double y) {
	return (1.0 - (0.1111111111111111 / x)) + (-0.3333333333333333 / (sqrt(x) / y));
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = (1.0d0 - (0.1111111111111111d0 / x)) + ((-0.3333333333333333d0) / (sqrt(x) / y))
end function
public static double code(double x, double y) {
	return (1.0 - (0.1111111111111111 / x)) + (-0.3333333333333333 / (Math.sqrt(x) / y));
}
def code(x, y):
	return (1.0 - (0.1111111111111111 / x)) + (-0.3333333333333333 / (math.sqrt(x) / y))
function code(x, y)
	return Float64(Float64(1.0 - Float64(0.1111111111111111 / x)) + Float64(-0.3333333333333333 / Float64(sqrt(x) / y)))
end
function tmp = code(x, y)
	tmp = (1.0 - (0.1111111111111111 / x)) + (-0.3333333333333333 / (sqrt(x) / y));
end
code[x_, y_] := N[(N[(1.0 - N[(0.1111111111111111 / x), $MachinePrecision]), $MachinePrecision] + N[(-0.3333333333333333 / N[(N[Sqrt[x], $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\left(1 - \frac{0.1111111111111111}{x}\right) + \frac{-0.3333333333333333}{\frac{\sqrt{x}}{y}}
\end{array}
Derivation
  1. Initial program 99.6%

    \[\left(1 - \frac{1}{x \cdot 9}\right) - \frac{y}{3 \cdot \sqrt{x}} \]
  2. Step-by-step derivation
    1. sub-neg99.6%

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

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

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

      \[\leadsto \left(1 - \frac{\color{blue}{0.1111111111111111}}{x}\right) + \left(-\frac{y}{3 \cdot \sqrt{x}}\right) \]
    5. distribute-frac-neg99.6%

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{\frac{-y}{3 \cdot \sqrt{x}}} \]
    6. neg-mul-199.6%

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \frac{\color{blue}{-1 \cdot y}}{3 \cdot \sqrt{x}} \]
    7. times-frac99.3%

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

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{-0.3333333333333333} \cdot \frac{y}{\sqrt{x}} \]
  3. Simplified99.3%

    \[\leadsto \color{blue}{\left(1 - \frac{0.1111111111111111}{x}\right) + -0.3333333333333333 \cdot \frac{y}{\sqrt{x}}} \]
  4. Add Preprocessing
  5. Step-by-step derivation
    1. clear-num99.2%

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + -0.3333333333333333 \cdot \color{blue}{\frac{1}{\frac{\sqrt{x}}{y}}} \]
    2. un-div-inv99.6%

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{\frac{-0.3333333333333333}{\frac{\sqrt{x}}{y}}} \]
  6. Applied egg-rr99.6%

    \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{\frac{-0.3333333333333333}{\frac{\sqrt{x}}{y}}} \]
  7. Add Preprocessing

Alternative 11: 99.6% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \left(1 - \frac{0.1111111111111111}{x}\right) + -0.3333333333333333 \cdot \frac{y}{\sqrt{x}} \end{array} \]
(FPCore (x y)
 :precision binary64
 (+ (- 1.0 (/ 0.1111111111111111 x)) (* -0.3333333333333333 (/ y (sqrt x)))))
double code(double x, double y) {
	return (1.0 - (0.1111111111111111 / x)) + (-0.3333333333333333 * (y / sqrt(x)));
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = (1.0d0 - (0.1111111111111111d0 / x)) + ((-0.3333333333333333d0) * (y / sqrt(x)))
end function
public static double code(double x, double y) {
	return (1.0 - (0.1111111111111111 / x)) + (-0.3333333333333333 * (y / Math.sqrt(x)));
}
def code(x, y):
	return (1.0 - (0.1111111111111111 / x)) + (-0.3333333333333333 * (y / math.sqrt(x)))
function code(x, y)
	return Float64(Float64(1.0 - Float64(0.1111111111111111 / x)) + Float64(-0.3333333333333333 * Float64(y / sqrt(x))))
end
function tmp = code(x, y)
	tmp = (1.0 - (0.1111111111111111 / x)) + (-0.3333333333333333 * (y / sqrt(x)));
end
code[x_, y_] := N[(N[(1.0 - N[(0.1111111111111111 / x), $MachinePrecision]), $MachinePrecision] + N[(-0.3333333333333333 * N[(y / N[Sqrt[x], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\left(1 - \frac{0.1111111111111111}{x}\right) + -0.3333333333333333 \cdot \frac{y}{\sqrt{x}}
\end{array}
Derivation
  1. Initial program 99.6%

    \[\left(1 - \frac{1}{x \cdot 9}\right) - \frac{y}{3 \cdot \sqrt{x}} \]
  2. Step-by-step derivation
    1. sub-neg99.6%

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

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

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

      \[\leadsto \left(1 - \frac{\color{blue}{0.1111111111111111}}{x}\right) + \left(-\frac{y}{3 \cdot \sqrt{x}}\right) \]
    5. distribute-frac-neg99.6%

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{\frac{-y}{3 \cdot \sqrt{x}}} \]
    6. neg-mul-199.6%

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \frac{\color{blue}{-1 \cdot y}}{3 \cdot \sqrt{x}} \]
    7. times-frac99.3%

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

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{-0.3333333333333333} \cdot \frac{y}{\sqrt{x}} \]
  3. Simplified99.3%

    \[\leadsto \color{blue}{\left(1 - \frac{0.1111111111111111}{x}\right) + -0.3333333333333333 \cdot \frac{y}{\sqrt{x}}} \]
  4. Add Preprocessing
  5. Add Preprocessing

Alternative 12: 65.8% accurate, 6.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq 7 \cdot 10^{+152}:\\ \;\;\;\;1 + \frac{-1}{x \cdot 9}\\ \mathbf{else}:\\ \;\;\;\;\frac{1 - \frac{\frac{0.012345679012345678}{x}}{x}}{1 + \frac{0.1111111111111111}{x}}\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (<= y 7e+152)
   (+ 1.0 (/ -1.0 (* x 9.0)))
   (/
    (- 1.0 (/ (/ 0.012345679012345678 x) x))
    (+ 1.0 (/ 0.1111111111111111 x)))))
double code(double x, double y) {
	double tmp;
	if (y <= 7e+152) {
		tmp = 1.0 + (-1.0 / (x * 9.0));
	} else {
		tmp = (1.0 - ((0.012345679012345678 / x) / x)) / (1.0 + (0.1111111111111111 / x));
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if (y <= 7d+152) then
        tmp = 1.0d0 + ((-1.0d0) / (x * 9.0d0))
    else
        tmp = (1.0d0 - ((0.012345679012345678d0 / x) / x)) / (1.0d0 + (0.1111111111111111d0 / x))
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if (y <= 7e+152) {
		tmp = 1.0 + (-1.0 / (x * 9.0));
	} else {
		tmp = (1.0 - ((0.012345679012345678 / x) / x)) / (1.0 + (0.1111111111111111 / x));
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if y <= 7e+152:
		tmp = 1.0 + (-1.0 / (x * 9.0))
	else:
		tmp = (1.0 - ((0.012345679012345678 / x) / x)) / (1.0 + (0.1111111111111111 / x))
	return tmp
function code(x, y)
	tmp = 0.0
	if (y <= 7e+152)
		tmp = Float64(1.0 + Float64(-1.0 / Float64(x * 9.0)));
	else
		tmp = Float64(Float64(1.0 - Float64(Float64(0.012345679012345678 / x) / x)) / Float64(1.0 + Float64(0.1111111111111111 / x)));
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if (y <= 7e+152)
		tmp = 1.0 + (-1.0 / (x * 9.0));
	else
		tmp = (1.0 - ((0.012345679012345678 / x) / x)) / (1.0 + (0.1111111111111111 / x));
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[LessEqual[y, 7e+152], N[(1.0 + N[(-1.0 / N[(x * 9.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(1.0 - N[(N[(0.012345679012345678 / x), $MachinePrecision] / x), $MachinePrecision]), $MachinePrecision] / N[(1.0 + N[(0.1111111111111111 / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq 7 \cdot 10^{+152}:\\
\;\;\;\;1 + \frac{-1}{x \cdot 9}\\

\mathbf{else}:\\
\;\;\;\;\frac{1 - \frac{\frac{0.012345679012345678}{x}}{x}}{1 + \frac{0.1111111111111111}{x}}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < 6.99999999999999963e152

    1. Initial program 99.6%

      \[\left(1 - \frac{1}{x \cdot 9}\right) - \frac{y}{3 \cdot \sqrt{x}} \]
    2. Step-by-step derivation
      1. associate--l-99.6%

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

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

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

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

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

        \[\leadsto 1 + \color{blue}{\left(\frac{-y}{3 \cdot \sqrt{x}} - \frac{1}{x \cdot 9}\right)} \]
      7. neg-mul-199.6%

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

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

        \[\leadsto 1 + \left(\color{blue}{y \cdot \frac{-1}{3 \cdot \sqrt{x}}} - \frac{1}{x \cdot 9}\right) \]
      10. fmm-def99.6%

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

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

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{\color{blue}{-0.3333333333333333}}{\sqrt{x}}, -\frac{1}{x \cdot 9}\right) \]
      13. *-commutative99.7%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\frac{1}{\color{blue}{9 \cdot x}}\right) \]
      14. associate-/r*99.6%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\color{blue}{\frac{\frac{1}{9}}{x}}\right) \]
      15. distribute-neg-frac99.6%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \color{blue}{\frac{-\frac{1}{9}}{x}}\right) \]
      16. metadata-eval99.6%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-\color{blue}{0.1111111111111111}}{x}\right) \]
      17. metadata-eval99.6%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{\color{blue}{-0.1111111111111111}}{x}\right) \]
    3. Simplified99.6%

      \[\leadsto \color{blue}{1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-0.1111111111111111}{x}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around 0 74.0%

      \[\leadsto \color{blue}{1 - 0.1111111111111111 \cdot \frac{1}{x}} \]
    6. Step-by-step derivation
      1. associate-*r/74.0%

        \[\leadsto 1 - \color{blue}{\frac{0.1111111111111111 \cdot 1}{x}} \]
      2. metadata-eval74.0%

        \[\leadsto 1 - \frac{\color{blue}{0.1111111111111111}}{x} \]
    7. Simplified74.0%

      \[\leadsto \color{blue}{1 - \frac{0.1111111111111111}{x}} \]
    8. Step-by-step derivation
      1. clear-num74.0%

        \[\leadsto 1 - \color{blue}{\frac{1}{\frac{x}{0.1111111111111111}}} \]
      2. div-inv74.0%

        \[\leadsto 1 - \frac{1}{\color{blue}{x \cdot \frac{1}{0.1111111111111111}}} \]
      3. metadata-eval74.0%

        \[\leadsto 1 - \frac{1}{x \cdot \color{blue}{9}} \]
      4. inv-pow74.0%

        \[\leadsto 1 - \color{blue}{{\left(x \cdot 9\right)}^{-1}} \]
    9. Applied egg-rr74.0%

      \[\leadsto 1 - \color{blue}{{\left(x \cdot 9\right)}^{-1}} \]
    10. Step-by-step derivation
      1. unpow-174.0%

        \[\leadsto 1 - \color{blue}{\frac{1}{x \cdot 9}} \]
    11. Applied egg-rr74.0%

      \[\leadsto 1 - \color{blue}{\frac{1}{x \cdot 9}} \]

    if 6.99999999999999963e152 < y

    1. Initial program 99.5%

      \[\left(1 - \frac{1}{x \cdot 9}\right) - \frac{y}{3 \cdot \sqrt{x}} \]
    2. Step-by-step derivation
      1. associate--l-99.5%

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

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

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

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

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

        \[\leadsto 1 + \color{blue}{\left(\frac{-y}{3 \cdot \sqrt{x}} - \frac{1}{x \cdot 9}\right)} \]
      7. neg-mul-199.5%

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

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

        \[\leadsto 1 + \left(\color{blue}{y \cdot \frac{-1}{3 \cdot \sqrt{x}}} - \frac{1}{x \cdot 9}\right) \]
      10. fmm-def99.7%

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

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

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{\color{blue}{-0.3333333333333333}}{\sqrt{x}}, -\frac{1}{x \cdot 9}\right) \]
      13. *-commutative99.6%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\frac{1}{\color{blue}{9 \cdot x}}\right) \]
      14. associate-/r*99.6%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\color{blue}{\frac{\frac{1}{9}}{x}}\right) \]
      15. distribute-neg-frac99.6%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \color{blue}{\frac{-\frac{1}{9}}{x}}\right) \]
      16. metadata-eval99.6%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-\color{blue}{0.1111111111111111}}{x}\right) \]
      17. metadata-eval99.6%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{\color{blue}{-0.1111111111111111}}{x}\right) \]
    3. Simplified99.6%

      \[\leadsto \color{blue}{1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-0.1111111111111111}{x}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around 0 2.8%

      \[\leadsto \color{blue}{1 - 0.1111111111111111 \cdot \frac{1}{x}} \]
    6. Step-by-step derivation
      1. associate-*r/2.8%

        \[\leadsto 1 - \color{blue}{\frac{0.1111111111111111 \cdot 1}{x}} \]
      2. metadata-eval2.8%

        \[\leadsto 1 - \frac{\color{blue}{0.1111111111111111}}{x} \]
    7. Simplified2.8%

      \[\leadsto \color{blue}{1 - \frac{0.1111111111111111}{x}} \]
    8. Step-by-step derivation
      1. clear-num2.8%

        \[\leadsto 1 - \color{blue}{\frac{1}{\frac{x}{0.1111111111111111}}} \]
      2. div-inv2.8%

        \[\leadsto 1 - \frac{1}{\color{blue}{x \cdot \frac{1}{0.1111111111111111}}} \]
      3. metadata-eval2.8%

        \[\leadsto 1 - \frac{1}{x \cdot \color{blue}{9}} \]
      4. inv-pow2.8%

        \[\leadsto 1 - \color{blue}{{\left(x \cdot 9\right)}^{-1}} \]
    9. Applied egg-rr2.8%

      \[\leadsto 1 - \color{blue}{{\left(x \cdot 9\right)}^{-1}} \]
    10. Step-by-step derivation
      1. sub-neg2.8%

        \[\leadsto \color{blue}{1 + \left(-{\left(x \cdot 9\right)}^{-1}\right)} \]
      2. flip-+17.4%

        \[\leadsto \color{blue}{\frac{1 \cdot 1 - \left(-{\left(x \cdot 9\right)}^{-1}\right) \cdot \left(-{\left(x \cdot 9\right)}^{-1}\right)}{1 - \left(-{\left(x \cdot 9\right)}^{-1}\right)}} \]
      3. metadata-eval17.4%

        \[\leadsto \frac{\color{blue}{1} - \left(-{\left(x \cdot 9\right)}^{-1}\right) \cdot \left(-{\left(x \cdot 9\right)}^{-1}\right)}{1 - \left(-{\left(x \cdot 9\right)}^{-1}\right)} \]
      4. unpow-117.4%

        \[\leadsto \frac{1 - \left(-\color{blue}{\frac{1}{x \cdot 9}}\right) \cdot \left(-{\left(x \cdot 9\right)}^{-1}\right)}{1 - \left(-{\left(x \cdot 9\right)}^{-1}\right)} \]
      5. metadata-eval17.4%

        \[\leadsto \frac{1 - \left(-\frac{1}{x \cdot \color{blue}{\frac{1}{0.1111111111111111}}}\right) \cdot \left(-{\left(x \cdot 9\right)}^{-1}\right)}{1 - \left(-{\left(x \cdot 9\right)}^{-1}\right)} \]
      6. div-inv17.4%

        \[\leadsto \frac{1 - \left(-\frac{1}{\color{blue}{\frac{x}{0.1111111111111111}}}\right) \cdot \left(-{\left(x \cdot 9\right)}^{-1}\right)}{1 - \left(-{\left(x \cdot 9\right)}^{-1}\right)} \]
      7. clear-num17.4%

        \[\leadsto \frac{1 - \left(-\color{blue}{\frac{0.1111111111111111}{x}}\right) \cdot \left(-{\left(x \cdot 9\right)}^{-1}\right)}{1 - \left(-{\left(x \cdot 9\right)}^{-1}\right)} \]
      8. distribute-neg-frac17.4%

        \[\leadsto \frac{1 - \color{blue}{\frac{-0.1111111111111111}{x}} \cdot \left(-{\left(x \cdot 9\right)}^{-1}\right)}{1 - \left(-{\left(x \cdot 9\right)}^{-1}\right)} \]
      9. metadata-eval17.4%

        \[\leadsto \frac{1 - \frac{\color{blue}{-0.1111111111111111}}{x} \cdot \left(-{\left(x \cdot 9\right)}^{-1}\right)}{1 - \left(-{\left(x \cdot 9\right)}^{-1}\right)} \]
      10. unpow-117.4%

        \[\leadsto \frac{1 - \frac{-0.1111111111111111}{x} \cdot \left(-\color{blue}{\frac{1}{x \cdot 9}}\right)}{1 - \left(-{\left(x \cdot 9\right)}^{-1}\right)} \]
      11. metadata-eval17.4%

        \[\leadsto \frac{1 - \frac{-0.1111111111111111}{x} \cdot \left(-\frac{1}{x \cdot \color{blue}{\frac{1}{0.1111111111111111}}}\right)}{1 - \left(-{\left(x \cdot 9\right)}^{-1}\right)} \]
      12. div-inv17.4%

        \[\leadsto \frac{1 - \frac{-0.1111111111111111}{x} \cdot \left(-\frac{1}{\color{blue}{\frac{x}{0.1111111111111111}}}\right)}{1 - \left(-{\left(x \cdot 9\right)}^{-1}\right)} \]
      13. clear-num17.4%

        \[\leadsto \frac{1 - \frac{-0.1111111111111111}{x} \cdot \left(-\color{blue}{\frac{0.1111111111111111}{x}}\right)}{1 - \left(-{\left(x \cdot 9\right)}^{-1}\right)} \]
      14. distribute-neg-frac17.4%

        \[\leadsto \frac{1 - \frac{-0.1111111111111111}{x} \cdot \color{blue}{\frac{-0.1111111111111111}{x}}}{1 - \left(-{\left(x \cdot 9\right)}^{-1}\right)} \]
      15. metadata-eval17.4%

        \[\leadsto \frac{1 - \frac{-0.1111111111111111}{x} \cdot \frac{\color{blue}{-0.1111111111111111}}{x}}{1 - \left(-{\left(x \cdot 9\right)}^{-1}\right)} \]
      16. unpow-117.4%

        \[\leadsto \frac{1 - \frac{-0.1111111111111111}{x} \cdot \frac{-0.1111111111111111}{x}}{1 - \left(-\color{blue}{\frac{1}{x \cdot 9}}\right)} \]
      17. metadata-eval17.4%

        \[\leadsto \frac{1 - \frac{-0.1111111111111111}{x} \cdot \frac{-0.1111111111111111}{x}}{1 - \left(-\frac{1}{x \cdot \color{blue}{\frac{1}{0.1111111111111111}}}\right)} \]
      18. div-inv17.4%

        \[\leadsto \frac{1 - \frac{-0.1111111111111111}{x} \cdot \frac{-0.1111111111111111}{x}}{1 - \left(-\frac{1}{\color{blue}{\frac{x}{0.1111111111111111}}}\right)} \]
      19. clear-num17.4%

        \[\leadsto \frac{1 - \frac{-0.1111111111111111}{x} \cdot \frac{-0.1111111111111111}{x}}{1 - \left(-\color{blue}{\frac{0.1111111111111111}{x}}\right)} \]
    11. Applied egg-rr17.4%

      \[\leadsto \color{blue}{\frac{1 - \frac{-0.1111111111111111}{x} \cdot \frac{-0.1111111111111111}{x}}{1 - \frac{-0.1111111111111111}{x}}} \]
    12. Step-by-step derivation
      1. associate-*r/17.4%

        \[\leadsto \frac{1 - \color{blue}{\frac{\frac{-0.1111111111111111}{x} \cdot -0.1111111111111111}{x}}}{1 - \frac{-0.1111111111111111}{x}} \]
      2. associate-*l/17.4%

        \[\leadsto \frac{1 - \frac{\color{blue}{\frac{-0.1111111111111111 \cdot -0.1111111111111111}{x}}}{x}}{1 - \frac{-0.1111111111111111}{x}} \]
      3. metadata-eval17.4%

        \[\leadsto \frac{1 - \frac{\frac{\color{blue}{0.012345679012345678}}{x}}{x}}{1 - \frac{-0.1111111111111111}{x}} \]
      4. sub-neg17.4%

        \[\leadsto \frac{1 - \frac{\frac{0.012345679012345678}{x}}{x}}{\color{blue}{1 + \left(-\frac{-0.1111111111111111}{x}\right)}} \]
      5. distribute-neg-frac17.4%

        \[\leadsto \frac{1 - \frac{\frac{0.012345679012345678}{x}}{x}}{1 + \color{blue}{\frac{--0.1111111111111111}{x}}} \]
      6. metadata-eval17.4%

        \[\leadsto \frac{1 - \frac{\frac{0.012345679012345678}{x}}{x}}{1 + \frac{\color{blue}{0.1111111111111111}}{x}} \]
    13. Simplified17.4%

      \[\leadsto \color{blue}{\frac{1 - \frac{\frac{0.012345679012345678}{x}}{x}}{1 + \frac{0.1111111111111111}{x}}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification66.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq 7 \cdot 10^{+152}:\\ \;\;\;\;1 + \frac{-1}{x \cdot 9}\\ \mathbf{else}:\\ \;\;\;\;\frac{1 - \frac{\frac{0.012345679012345678}{x}}{x}}{1 + \frac{0.1111111111111111}{x}}\\ \end{array} \]
  5. Add Preprocessing

Alternative 13: 62.2% accurate, 11.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq 4.3 \cdot 10^{-6}:\\ \;\;\;\;\frac{1}{x} \cdot -0.1111111111111111\\ \mathbf{else}:\\ \;\;\;\;1\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (<= x 4.3e-6) (* (/ 1.0 x) -0.1111111111111111) 1.0))
double code(double x, double y) {
	double tmp;
	if (x <= 4.3e-6) {
		tmp = (1.0 / x) * -0.1111111111111111;
	} else {
		tmp = 1.0;
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if (x <= 4.3d-6) then
        tmp = (1.0d0 / x) * (-0.1111111111111111d0)
    else
        tmp = 1.0d0
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if (x <= 4.3e-6) {
		tmp = (1.0 / x) * -0.1111111111111111;
	} else {
		tmp = 1.0;
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if x <= 4.3e-6:
		tmp = (1.0 / x) * -0.1111111111111111
	else:
		tmp = 1.0
	return tmp
function code(x, y)
	tmp = 0.0
	if (x <= 4.3e-6)
		tmp = Float64(Float64(1.0 / x) * -0.1111111111111111);
	else
		tmp = 1.0;
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if (x <= 4.3e-6)
		tmp = (1.0 / x) * -0.1111111111111111;
	else
		tmp = 1.0;
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[LessEqual[x, 4.3e-6], N[(N[(1.0 / x), $MachinePrecision] * -0.1111111111111111), $MachinePrecision], 1.0]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq 4.3 \cdot 10^{-6}:\\
\;\;\;\;\frac{1}{x} \cdot -0.1111111111111111\\

\mathbf{else}:\\
\;\;\;\;1\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < 4.30000000000000033e-6

    1. Initial program 99.5%

      \[\left(1 - \frac{1}{x \cdot 9}\right) - \frac{y}{3 \cdot \sqrt{x}} \]
    2. Step-by-step derivation
      1. associate--l-99.5%

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

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

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

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

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

        \[\leadsto 1 + \color{blue}{\left(\frac{-y}{3 \cdot \sqrt{x}} - \frac{1}{x \cdot 9}\right)} \]
      7. neg-mul-199.5%

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

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

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

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

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

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{\color{blue}{-0.3333333333333333}}{\sqrt{x}}, -\frac{1}{x \cdot 9}\right) \]
      13. *-commutative99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\frac{1}{\color{blue}{9 \cdot x}}\right) \]
      14. associate-/r*99.4%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\color{blue}{\frac{\frac{1}{9}}{x}}\right) \]
      15. distribute-neg-frac99.4%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \color{blue}{\frac{-\frac{1}{9}}{x}}\right) \]
      16. metadata-eval99.4%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-\color{blue}{0.1111111111111111}}{x}\right) \]
      17. metadata-eval99.4%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{\color{blue}{-0.1111111111111111}}{x}\right) \]
    3. Simplified99.4%

      \[\leadsto \color{blue}{1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-0.1111111111111111}{x}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around 0 70.0%

      \[\leadsto \color{blue}{1 - 0.1111111111111111 \cdot \frac{1}{x}} \]
    6. Step-by-step derivation
      1. associate-*r/70.0%

        \[\leadsto 1 - \color{blue}{\frac{0.1111111111111111 \cdot 1}{x}} \]
      2. metadata-eval70.0%

        \[\leadsto 1 - \frac{\color{blue}{0.1111111111111111}}{x} \]
    7. Simplified70.0%

      \[\leadsto \color{blue}{1 - \frac{0.1111111111111111}{x}} \]
    8. Step-by-step derivation
      1. clear-num70.0%

        \[\leadsto 1 - \color{blue}{\frac{1}{\frac{x}{0.1111111111111111}}} \]
      2. div-inv70.1%

        \[\leadsto 1 - \frac{1}{\color{blue}{x \cdot \frac{1}{0.1111111111111111}}} \]
      3. metadata-eval70.1%

        \[\leadsto 1 - \frac{1}{x \cdot \color{blue}{9}} \]
      4. inv-pow70.1%

        \[\leadsto 1 - \color{blue}{{\left(x \cdot 9\right)}^{-1}} \]
    9. Applied egg-rr70.1%

      \[\leadsto 1 - \color{blue}{{\left(x \cdot 9\right)}^{-1}} \]
    10. Taylor expanded in x around 0 70.0%

      \[\leadsto \color{blue}{\frac{-0.1111111111111111}{x}} \]
    11. Step-by-step derivation
      1. clear-num70.0%

        \[\leadsto \color{blue}{\frac{1}{\frac{x}{-0.1111111111111111}}} \]
      2. associate-/r/70.0%

        \[\leadsto \color{blue}{\frac{1}{x} \cdot -0.1111111111111111} \]
    12. Applied egg-rr70.0%

      \[\leadsto \color{blue}{\frac{1}{x} \cdot -0.1111111111111111} \]

    if 4.30000000000000033e-6 < x

    1. Initial program 99.8%

      \[\left(1 - \frac{1}{x \cdot 9}\right) - \frac{y}{3 \cdot \sqrt{x}} \]
    2. Step-by-step derivation
      1. sub-neg99.8%

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

        \[\leadsto \left(1 - \frac{1}{\color{blue}{9 \cdot x}}\right) + \left(-\frac{y}{3 \cdot \sqrt{x}}\right) \]
      3. associate-/r*99.8%

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

        \[\leadsto \left(1 - \frac{\color{blue}{0.1111111111111111}}{x}\right) + \left(-\frac{y}{3 \cdot \sqrt{x}}\right) \]
      5. distribute-frac-neg99.8%

        \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{\frac{-y}{3 \cdot \sqrt{x}}} \]
      6. neg-mul-199.8%

        \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \frac{\color{blue}{-1 \cdot y}}{3 \cdot \sqrt{x}} \]
      7. times-frac99.7%

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

        \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{-0.3333333333333333} \cdot \frac{y}{\sqrt{x}} \]
    3. Simplified99.7%

      \[\leadsto \color{blue}{\left(1 - \frac{0.1111111111111111}{x}\right) + -0.3333333333333333 \cdot \frac{y}{\sqrt{x}}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 97.5%

      \[\leadsto \color{blue}{1} + -0.3333333333333333 \cdot \frac{y}{\sqrt{x}} \]
    6. Taylor expanded in y around 0 57.7%

      \[\leadsto \color{blue}{1} \]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 14: 62.3% accurate, 14.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq 4.3 \cdot 10^{-6}:\\ \;\;\;\;\frac{-0.1111111111111111}{x}\\ \mathbf{else}:\\ \;\;\;\;1\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (<= x 4.3e-6) (/ -0.1111111111111111 x) 1.0))
double code(double x, double y) {
	double tmp;
	if (x <= 4.3e-6) {
		tmp = -0.1111111111111111 / x;
	} else {
		tmp = 1.0;
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if (x <= 4.3d-6) then
        tmp = (-0.1111111111111111d0) / x
    else
        tmp = 1.0d0
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if (x <= 4.3e-6) {
		tmp = -0.1111111111111111 / x;
	} else {
		tmp = 1.0;
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if x <= 4.3e-6:
		tmp = -0.1111111111111111 / x
	else:
		tmp = 1.0
	return tmp
function code(x, y)
	tmp = 0.0
	if (x <= 4.3e-6)
		tmp = Float64(-0.1111111111111111 / x);
	else
		tmp = 1.0;
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if (x <= 4.3e-6)
		tmp = -0.1111111111111111 / x;
	else
		tmp = 1.0;
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[LessEqual[x, 4.3e-6], N[(-0.1111111111111111 / x), $MachinePrecision], 1.0]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq 4.3 \cdot 10^{-6}:\\
\;\;\;\;\frac{-0.1111111111111111}{x}\\

\mathbf{else}:\\
\;\;\;\;1\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < 4.30000000000000033e-6

    1. Initial program 99.5%

      \[\left(1 - \frac{1}{x \cdot 9}\right) - \frac{y}{3 \cdot \sqrt{x}} \]
    2. Step-by-step derivation
      1. associate--l-99.5%

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

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

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

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

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

        \[\leadsto 1 + \color{blue}{\left(\frac{-y}{3 \cdot \sqrt{x}} - \frac{1}{x \cdot 9}\right)} \]
      7. neg-mul-199.5%

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

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

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

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

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

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{\color{blue}{-0.3333333333333333}}{\sqrt{x}}, -\frac{1}{x \cdot 9}\right) \]
      13. *-commutative99.5%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\frac{1}{\color{blue}{9 \cdot x}}\right) \]
      14. associate-/r*99.4%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\color{blue}{\frac{\frac{1}{9}}{x}}\right) \]
      15. distribute-neg-frac99.4%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \color{blue}{\frac{-\frac{1}{9}}{x}}\right) \]
      16. metadata-eval99.4%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-\color{blue}{0.1111111111111111}}{x}\right) \]
      17. metadata-eval99.4%

        \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{\color{blue}{-0.1111111111111111}}{x}\right) \]
    3. Simplified99.4%

      \[\leadsto \color{blue}{1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-0.1111111111111111}{x}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around 0 70.0%

      \[\leadsto \color{blue}{1 - 0.1111111111111111 \cdot \frac{1}{x}} \]
    6. Step-by-step derivation
      1. associate-*r/70.0%

        \[\leadsto 1 - \color{blue}{\frac{0.1111111111111111 \cdot 1}{x}} \]
      2. metadata-eval70.0%

        \[\leadsto 1 - \frac{\color{blue}{0.1111111111111111}}{x} \]
    7. Simplified70.0%

      \[\leadsto \color{blue}{1 - \frac{0.1111111111111111}{x}} \]
    8. Step-by-step derivation
      1. clear-num70.0%

        \[\leadsto 1 - \color{blue}{\frac{1}{\frac{x}{0.1111111111111111}}} \]
      2. div-inv70.1%

        \[\leadsto 1 - \frac{1}{\color{blue}{x \cdot \frac{1}{0.1111111111111111}}} \]
      3. metadata-eval70.1%

        \[\leadsto 1 - \frac{1}{x \cdot \color{blue}{9}} \]
      4. inv-pow70.1%

        \[\leadsto 1 - \color{blue}{{\left(x \cdot 9\right)}^{-1}} \]
    9. Applied egg-rr70.1%

      \[\leadsto 1 - \color{blue}{{\left(x \cdot 9\right)}^{-1}} \]
    10. Taylor expanded in x around 0 70.0%

      \[\leadsto \color{blue}{\frac{-0.1111111111111111}{x}} \]

    if 4.30000000000000033e-6 < x

    1. Initial program 99.8%

      \[\left(1 - \frac{1}{x \cdot 9}\right) - \frac{y}{3 \cdot \sqrt{x}} \]
    2. Step-by-step derivation
      1. sub-neg99.8%

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

        \[\leadsto \left(1 - \frac{1}{\color{blue}{9 \cdot x}}\right) + \left(-\frac{y}{3 \cdot \sqrt{x}}\right) \]
      3. associate-/r*99.8%

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

        \[\leadsto \left(1 - \frac{\color{blue}{0.1111111111111111}}{x}\right) + \left(-\frac{y}{3 \cdot \sqrt{x}}\right) \]
      5. distribute-frac-neg99.8%

        \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{\frac{-y}{3 \cdot \sqrt{x}}} \]
      6. neg-mul-199.8%

        \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \frac{\color{blue}{-1 \cdot y}}{3 \cdot \sqrt{x}} \]
      7. times-frac99.7%

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

        \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{-0.3333333333333333} \cdot \frac{y}{\sqrt{x}} \]
    3. Simplified99.7%

      \[\leadsto \color{blue}{\left(1 - \frac{0.1111111111111111}{x}\right) + -0.3333333333333333 \cdot \frac{y}{\sqrt{x}}} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 97.5%

      \[\leadsto \color{blue}{1} + -0.3333333333333333 \cdot \frac{y}{\sqrt{x}} \]
    6. Taylor expanded in y around 0 57.7%

      \[\leadsto \color{blue}{1} \]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 15: 63.4% accurate, 16.1× speedup?

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

\\
1 + \frac{-1}{x \cdot 9}
\end{array}
Derivation
  1. Initial program 99.6%

    \[\left(1 - \frac{1}{x \cdot 9}\right) - \frac{y}{3 \cdot \sqrt{x}} \]
  2. Step-by-step derivation
    1. associate--l-99.6%

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

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

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

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

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

      \[\leadsto 1 + \color{blue}{\left(\frac{-y}{3 \cdot \sqrt{x}} - \frac{1}{x \cdot 9}\right)} \]
    7. neg-mul-199.6%

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

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

      \[\leadsto 1 + \left(\color{blue}{y \cdot \frac{-1}{3 \cdot \sqrt{x}}} - \frac{1}{x \cdot 9}\right) \]
    10. fmm-def99.6%

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

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

      \[\leadsto 1 + \mathsf{fma}\left(y, \frac{\color{blue}{-0.3333333333333333}}{\sqrt{x}}, -\frac{1}{x \cdot 9}\right) \]
    13. *-commutative99.6%

      \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\frac{1}{\color{blue}{9 \cdot x}}\right) \]
    14. associate-/r*99.6%

      \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\color{blue}{\frac{\frac{1}{9}}{x}}\right) \]
    15. distribute-neg-frac99.6%

      \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \color{blue}{\frac{-\frac{1}{9}}{x}}\right) \]
    16. metadata-eval99.6%

      \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-\color{blue}{0.1111111111111111}}{x}\right) \]
    17. metadata-eval99.6%

      \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{\color{blue}{-0.1111111111111111}}{x}\right) \]
  3. Simplified99.6%

    \[\leadsto \color{blue}{1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-0.1111111111111111}{x}\right)} \]
  4. Add Preprocessing
  5. Taylor expanded in y around 0 65.1%

    \[\leadsto \color{blue}{1 - 0.1111111111111111 \cdot \frac{1}{x}} \]
  6. Step-by-step derivation
    1. associate-*r/65.1%

      \[\leadsto 1 - \color{blue}{\frac{0.1111111111111111 \cdot 1}{x}} \]
    2. metadata-eval65.1%

      \[\leadsto 1 - \frac{\color{blue}{0.1111111111111111}}{x} \]
  7. Simplified65.1%

    \[\leadsto \color{blue}{1 - \frac{0.1111111111111111}{x}} \]
  8. Step-by-step derivation
    1. clear-num65.1%

      \[\leadsto 1 - \color{blue}{\frac{1}{\frac{x}{0.1111111111111111}}} \]
    2. div-inv65.1%

      \[\leadsto 1 - \frac{1}{\color{blue}{x \cdot \frac{1}{0.1111111111111111}}} \]
    3. metadata-eval65.1%

      \[\leadsto 1 - \frac{1}{x \cdot \color{blue}{9}} \]
    4. inv-pow65.1%

      \[\leadsto 1 - \color{blue}{{\left(x \cdot 9\right)}^{-1}} \]
  9. Applied egg-rr65.1%

    \[\leadsto 1 - \color{blue}{{\left(x \cdot 9\right)}^{-1}} \]
  10. Step-by-step derivation
    1. unpow-165.1%

      \[\leadsto 1 - \color{blue}{\frac{1}{x \cdot 9}} \]
  11. Applied egg-rr65.1%

    \[\leadsto 1 - \color{blue}{\frac{1}{x \cdot 9}} \]
  12. Final simplification65.1%

    \[\leadsto 1 + \frac{-1}{x \cdot 9} \]
  13. Add Preprocessing

Alternative 16: 63.4% accurate, 16.1× speedup?

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

\\
1 + 0.1111111111111111 \cdot \frac{-1}{x}
\end{array}
Derivation
  1. Initial program 99.6%

    \[\left(1 - \frac{1}{x \cdot 9}\right) - \frac{y}{3 \cdot \sqrt{x}} \]
  2. Step-by-step derivation
    1. associate--l-99.6%

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

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

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

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

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

      \[\leadsto 1 + \color{blue}{\left(\frac{-y}{3 \cdot \sqrt{x}} - \frac{1}{x \cdot 9}\right)} \]
    7. neg-mul-199.6%

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

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

      \[\leadsto 1 + \left(\color{blue}{y \cdot \frac{-1}{3 \cdot \sqrt{x}}} - \frac{1}{x \cdot 9}\right) \]
    10. fmm-def99.6%

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

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

      \[\leadsto 1 + \mathsf{fma}\left(y, \frac{\color{blue}{-0.3333333333333333}}{\sqrt{x}}, -\frac{1}{x \cdot 9}\right) \]
    13. *-commutative99.6%

      \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\frac{1}{\color{blue}{9 \cdot x}}\right) \]
    14. associate-/r*99.6%

      \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\color{blue}{\frac{\frac{1}{9}}{x}}\right) \]
    15. distribute-neg-frac99.6%

      \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \color{blue}{\frac{-\frac{1}{9}}{x}}\right) \]
    16. metadata-eval99.6%

      \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-\color{blue}{0.1111111111111111}}{x}\right) \]
    17. metadata-eval99.6%

      \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{\color{blue}{-0.1111111111111111}}{x}\right) \]
  3. Simplified99.6%

    \[\leadsto \color{blue}{1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-0.1111111111111111}{x}\right)} \]
  4. Add Preprocessing
  5. Taylor expanded in y around 0 65.1%

    \[\leadsto \color{blue}{1 - 0.1111111111111111 \cdot \frac{1}{x}} \]
  6. Final simplification65.1%

    \[\leadsto 1 + 0.1111111111111111 \cdot \frac{-1}{x} \]
  7. Add Preprocessing

Alternative 17: 63.4% accurate, 22.6× speedup?

\[\begin{array}{l} \\ 1 - \frac{0.1111111111111111}{x} \end{array} \]
(FPCore (x y) :precision binary64 (- 1.0 (/ 0.1111111111111111 x)))
double code(double x, double y) {
	return 1.0 - (0.1111111111111111 / x);
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = 1.0d0 - (0.1111111111111111d0 / x)
end function
public static double code(double x, double y) {
	return 1.0 - (0.1111111111111111 / x);
}
def code(x, y):
	return 1.0 - (0.1111111111111111 / x)
function code(x, y)
	return Float64(1.0 - Float64(0.1111111111111111 / x))
end
function tmp = code(x, y)
	tmp = 1.0 - (0.1111111111111111 / x);
end
code[x_, y_] := N[(1.0 - N[(0.1111111111111111 / x), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
1 - \frac{0.1111111111111111}{x}
\end{array}
Derivation
  1. Initial program 99.6%

    \[\left(1 - \frac{1}{x \cdot 9}\right) - \frac{y}{3 \cdot \sqrt{x}} \]
  2. Step-by-step derivation
    1. associate--l-99.6%

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

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

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

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

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

      \[\leadsto 1 + \color{blue}{\left(\frac{-y}{3 \cdot \sqrt{x}} - \frac{1}{x \cdot 9}\right)} \]
    7. neg-mul-199.6%

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

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

      \[\leadsto 1 + \left(\color{blue}{y \cdot \frac{-1}{3 \cdot \sqrt{x}}} - \frac{1}{x \cdot 9}\right) \]
    10. fmm-def99.6%

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

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

      \[\leadsto 1 + \mathsf{fma}\left(y, \frac{\color{blue}{-0.3333333333333333}}{\sqrt{x}}, -\frac{1}{x \cdot 9}\right) \]
    13. *-commutative99.6%

      \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\frac{1}{\color{blue}{9 \cdot x}}\right) \]
    14. associate-/r*99.6%

      \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, -\color{blue}{\frac{\frac{1}{9}}{x}}\right) \]
    15. distribute-neg-frac99.6%

      \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \color{blue}{\frac{-\frac{1}{9}}{x}}\right) \]
    16. metadata-eval99.6%

      \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-\color{blue}{0.1111111111111111}}{x}\right) \]
    17. metadata-eval99.6%

      \[\leadsto 1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{\color{blue}{-0.1111111111111111}}{x}\right) \]
  3. Simplified99.6%

    \[\leadsto \color{blue}{1 + \mathsf{fma}\left(y, \frac{-0.3333333333333333}{\sqrt{x}}, \frac{-0.1111111111111111}{x}\right)} \]
  4. Add Preprocessing
  5. Taylor expanded in y around 0 65.1%

    \[\leadsto \color{blue}{1 - 0.1111111111111111 \cdot \frac{1}{x}} \]
  6. Step-by-step derivation
    1. associate-*r/65.1%

      \[\leadsto 1 - \color{blue}{\frac{0.1111111111111111 \cdot 1}{x}} \]
    2. metadata-eval65.1%

      \[\leadsto 1 - \frac{\color{blue}{0.1111111111111111}}{x} \]
  7. Simplified65.1%

    \[\leadsto \color{blue}{1 - \frac{0.1111111111111111}{x}} \]
  8. Add Preprocessing

Alternative 18: 32.4% accurate, 113.0× speedup?

\[\begin{array}{l} \\ 1 \end{array} \]
(FPCore (x y) :precision binary64 1.0)
double code(double x, double y) {
	return 1.0;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = 1.0d0
end function
public static double code(double x, double y) {
	return 1.0;
}
def code(x, y):
	return 1.0
function code(x, y)
	return 1.0
end
function tmp = code(x, y)
	tmp = 1.0;
end
code[x_, y_] := 1.0
\begin{array}{l}

\\
1
\end{array}
Derivation
  1. Initial program 99.6%

    \[\left(1 - \frac{1}{x \cdot 9}\right) - \frac{y}{3 \cdot \sqrt{x}} \]
  2. Step-by-step derivation
    1. sub-neg99.6%

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

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

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

      \[\leadsto \left(1 - \frac{\color{blue}{0.1111111111111111}}{x}\right) + \left(-\frac{y}{3 \cdot \sqrt{x}}\right) \]
    5. distribute-frac-neg99.6%

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{\frac{-y}{3 \cdot \sqrt{x}}} \]
    6. neg-mul-199.6%

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \frac{\color{blue}{-1 \cdot y}}{3 \cdot \sqrt{x}} \]
    7. times-frac99.3%

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

      \[\leadsto \left(1 - \frac{0.1111111111111111}{x}\right) + \color{blue}{-0.3333333333333333} \cdot \frac{y}{\sqrt{x}} \]
  3. Simplified99.3%

    \[\leadsto \color{blue}{\left(1 - \frac{0.1111111111111111}{x}\right) + -0.3333333333333333 \cdot \frac{y}{\sqrt{x}}} \]
  4. Add Preprocessing
  5. Taylor expanded in x around inf 62.6%

    \[\leadsto \color{blue}{1} + -0.3333333333333333 \cdot \frac{y}{\sqrt{x}} \]
  6. Taylor expanded in y around 0 28.5%

    \[\leadsto \color{blue}{1} \]
  7. Add Preprocessing

Developer Target 1: 99.7% accurate, 1.0× speedup?

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

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

Reproduce

?
herbie shell --seed 2024170 
(FPCore (x y)
  :name "Numeric.SpecFunctions:invIncompleteGamma from math-functions-0.1.5.2, D"
  :precision binary64

  :alt
  (! :herbie-platform default (- (- 1 (/ (/ 1 x) 9)) (/ y (* 3 (sqrt x)))))

  (- (- 1.0 (/ 1.0 (* x 9.0))) (/ y (* 3.0 (sqrt x)))))