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

Percentage Accurate: 99.4% → 99.6%
Time: 10.1s
Alternatives: 13
Speedup: 1.0×

Specification

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

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

Sampling outcomes in binary64 precision:

Local Percentage Accuracy vs ?

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

Accuracy vs Speed?

Herbie found 13 alternatives:

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

Initial Program: 99.4% accurate, 1.0× speedup?

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

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

Alternative 1: 99.6% accurate, 1.0× speedup?

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

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

    \[\left(3 \cdot \sqrt{x}\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
  2. Step-by-step derivation
    1. expm1-log1p-u96.4%

      \[\leadsto \color{blue}{\mathsf{expm1}\left(\mathsf{log1p}\left(3 \cdot \sqrt{x}\right)\right)} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. expm1-udef52.2%

      \[\leadsto \color{blue}{\left(e^{\mathsf{log1p}\left(3 \cdot \sqrt{x}\right)} - 1\right)} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    3. *-commutative52.2%

      \[\leadsto \left(e^{\mathsf{log1p}\left(\color{blue}{\sqrt{x} \cdot 3}\right)} - 1\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    4. metadata-eval52.2%

      \[\leadsto \left(e^{\mathsf{log1p}\left(\sqrt{x} \cdot \color{blue}{\sqrt{9}}\right)} - 1\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    5. sqrt-prod52.2%

      \[\leadsto \left(e^{\mathsf{log1p}\left(\color{blue}{\sqrt{x \cdot 9}}\right)} - 1\right) \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
  3. Applied egg-rr52.2%

    \[\leadsto \color{blue}{\left(e^{\mathsf{log1p}\left(\sqrt{x \cdot 9}\right)} - 1\right)} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
  4. Step-by-step derivation
    1. expm1-def96.5%

      \[\leadsto \color{blue}{\mathsf{expm1}\left(\mathsf{log1p}\left(\sqrt{x \cdot 9}\right)\right)} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
    2. expm1-log1p99.6%

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

    \[\leadsto \color{blue}{\sqrt{x \cdot 9}} \cdot \left(\left(y + \frac{1}{x \cdot 9}\right) - 1\right) \]
  6. Final simplification99.6%

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

Alternative 2: 61.9% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq 2.6 \cdot 10^{-16}:\\ \;\;\;\;\sqrt{\frac{0.1111111111111111}{x}}\\ \mathbf{elif}\;x \leq 6.6 \cdot 10^{+57} \lor \neg \left(x \leq 2.4 \cdot 10^{+134}\right) \land \left(x \leq 4 \cdot 10^{+206} \lor \neg \left(x \leq 7.6 \cdot 10^{+230}\right) \land x \leq 1.58 \cdot 10^{+258}\right):\\ \;\;\;\;3 \cdot \left(y \cdot \sqrt{x}\right)\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot -3\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (<= x 2.6e-16)
   (sqrt (/ 0.1111111111111111 x))
   (if (or (<= x 6.6e+57)
           (and (not (<= x 2.4e+134))
                (or (<= x 4e+206)
                    (and (not (<= x 7.6e+230)) (<= x 1.58e+258)))))
     (* 3.0 (* y (sqrt x)))
     (* (sqrt x) -3.0))))
double code(double x, double y) {
	double tmp;
	if (x <= 2.6e-16) {
		tmp = sqrt((0.1111111111111111 / x));
	} else if ((x <= 6.6e+57) || (!(x <= 2.4e+134) && ((x <= 4e+206) || (!(x <= 7.6e+230) && (x <= 1.58e+258))))) {
		tmp = 3.0 * (y * sqrt(x));
	} else {
		tmp = sqrt(x) * -3.0;
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if (x <= 2.6d-16) then
        tmp = sqrt((0.1111111111111111d0 / x))
    else if ((x <= 6.6d+57) .or. (.not. (x <= 2.4d+134)) .and. (x <= 4d+206) .or. (.not. (x <= 7.6d+230)) .and. (x <= 1.58d+258)) then
        tmp = 3.0d0 * (y * sqrt(x))
    else
        tmp = sqrt(x) * (-3.0d0)
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if (x <= 2.6e-16) {
		tmp = Math.sqrt((0.1111111111111111 / x));
	} else if ((x <= 6.6e+57) || (!(x <= 2.4e+134) && ((x <= 4e+206) || (!(x <= 7.6e+230) && (x <= 1.58e+258))))) {
		tmp = 3.0 * (y * Math.sqrt(x));
	} else {
		tmp = Math.sqrt(x) * -3.0;
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if x <= 2.6e-16:
		tmp = math.sqrt((0.1111111111111111 / x))
	elif (x <= 6.6e+57) or (not (x <= 2.4e+134) and ((x <= 4e+206) or (not (x <= 7.6e+230) and (x <= 1.58e+258)))):
		tmp = 3.0 * (y * math.sqrt(x))
	else:
		tmp = math.sqrt(x) * -3.0
	return tmp
function code(x, y)
	tmp = 0.0
	if (x <= 2.6e-16)
		tmp = sqrt(Float64(0.1111111111111111 / x));
	elseif ((x <= 6.6e+57) || (!(x <= 2.4e+134) && ((x <= 4e+206) || (!(x <= 7.6e+230) && (x <= 1.58e+258)))))
		tmp = Float64(3.0 * Float64(y * sqrt(x)));
	else
		tmp = Float64(sqrt(x) * -3.0);
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if (x <= 2.6e-16)
		tmp = sqrt((0.1111111111111111 / x));
	elseif ((x <= 6.6e+57) || (~((x <= 2.4e+134)) && ((x <= 4e+206) || (~((x <= 7.6e+230)) && (x <= 1.58e+258)))))
		tmp = 3.0 * (y * sqrt(x));
	else
		tmp = sqrt(x) * -3.0;
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[LessEqual[x, 2.6e-16], N[Sqrt[N[(0.1111111111111111 / x), $MachinePrecision]], $MachinePrecision], If[Or[LessEqual[x, 6.6e+57], And[N[Not[LessEqual[x, 2.4e+134]], $MachinePrecision], Or[LessEqual[x, 4e+206], And[N[Not[LessEqual[x, 7.6e+230]], $MachinePrecision], LessEqual[x, 1.58e+258]]]]], N[(3.0 * N[(y * N[Sqrt[x], $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[Sqrt[x], $MachinePrecision] * -3.0), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq 2.6 \cdot 10^{-16}:\\
\;\;\;\;\sqrt{\frac{0.1111111111111111}{x}}\\

\mathbf{elif}\;x \leq 6.6 \cdot 10^{+57} \lor \neg \left(x \leq 2.4 \cdot 10^{+134}\right) \land \left(x \leq 4 \cdot 10^{+206} \lor \neg \left(x \leq 7.6 \cdot 10^{+230}\right) \land x \leq 1.58 \cdot 10^{+258}\right):\\
\;\;\;\;3 \cdot \left(y \cdot \sqrt{x}\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if x < 2.5999999999999998e-16

    1. Initial program 99.2%

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

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

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

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

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

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

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

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

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

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\frac{0.1111111111111111}{x} + \left(y + -1\right)\right)\right)} \]
    4. Applied egg-rr45.0%

      \[\leadsto 3 \cdot \color{blue}{\sqrt{x \cdot {\left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)}^{2}}} \]
    5. Step-by-step derivation
      1. *-commutative45.0%

        \[\leadsto 3 \cdot \sqrt{\color{blue}{{\left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)}^{2} \cdot x}} \]
    6. Simplified45.0%

      \[\leadsto 3 \cdot \color{blue}{\sqrt{{\left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)}^{2} \cdot x}} \]
    7. Taylor expanded in x around 0 81.2%

      \[\leadsto 3 \cdot \sqrt{\color{blue}{\frac{0.012345679012345678}{x}}} \]
    8. Step-by-step derivation
      1. add-sqr-sqrt80.8%

        \[\leadsto \color{blue}{\sqrt{3 \cdot \sqrt{\frac{0.012345679012345678}{x}}} \cdot \sqrt{3 \cdot \sqrt{\frac{0.012345679012345678}{x}}}} \]
      2. sqrt-unprod81.2%

        \[\leadsto \color{blue}{\sqrt{\left(3 \cdot \sqrt{\frac{0.012345679012345678}{x}}\right) \cdot \left(3 \cdot \sqrt{\frac{0.012345679012345678}{x}}\right)}} \]
      3. *-commutative81.2%

        \[\leadsto \sqrt{\color{blue}{\left(\sqrt{\frac{0.012345679012345678}{x}} \cdot 3\right)} \cdot \left(3 \cdot \sqrt{\frac{0.012345679012345678}{x}}\right)} \]
      4. *-commutative81.2%

        \[\leadsto \sqrt{\left(\sqrt{\frac{0.012345679012345678}{x}} \cdot 3\right) \cdot \color{blue}{\left(\sqrt{\frac{0.012345679012345678}{x}} \cdot 3\right)}} \]
      5. swap-sqr81.2%

        \[\leadsto \sqrt{\color{blue}{\left(\sqrt{\frac{0.012345679012345678}{x}} \cdot \sqrt{\frac{0.012345679012345678}{x}}\right) \cdot \left(3 \cdot 3\right)}} \]
      6. add-sqr-sqrt81.3%

        \[\leadsto \sqrt{\color{blue}{\frac{0.012345679012345678}{x}} \cdot \left(3 \cdot 3\right)} \]
      7. metadata-eval81.3%

        \[\leadsto \sqrt{\frac{0.012345679012345678}{x} \cdot \color{blue}{9}} \]
    9. Applied egg-rr81.3%

      \[\leadsto \color{blue}{\sqrt{\frac{0.012345679012345678}{x} \cdot 9}} \]
    10. Step-by-step derivation
      1. associate-*l/81.3%

        \[\leadsto \sqrt{\color{blue}{\frac{0.012345679012345678 \cdot 9}{x}}} \]
      2. metadata-eval81.3%

        \[\leadsto \sqrt{\frac{\color{blue}{0.1111111111111111}}{x}} \]
    11. Simplified81.3%

      \[\leadsto \color{blue}{\sqrt{\frac{0.1111111111111111}{x}}} \]

    if 2.5999999999999998e-16 < x < 6.6000000000000002e57 or 2.40000000000000005e134 < x < 4.0000000000000002e206 or 7.6e230 < x < 1.58e258

    1. Initial program 99.6%

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

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(y + \frac{1}{x \cdot 9}\right) - \left(3 \cdot \sqrt{x}\right) \cdot 1} \]
      2. *-rgt-identity99.5%

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

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

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

        \[\leadsto \color{blue}{\left(3 \cdot \left(y + \frac{1}{x \cdot 9}\right)\right) \cdot \sqrt{x}} - 3 \cdot \sqrt{x} \]
      6. distribute-rgt-out--99.6%

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

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

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

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

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

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

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

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

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

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

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

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

        \[\leadsto \sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \left(3 \cdot y + 3 \cdot \color{blue}{\left(-1\right)}\right)\right) \]
      19. fma-def99.7%

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

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \mathsf{fma}\left(3, y, -3\right)\right)} \]
    4. Taylor expanded in y around inf 68.1%

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

    if 6.6000000000000002e57 < x < 2.40000000000000005e134 or 4.0000000000000002e206 < x < 7.6e230 or 1.58e258 < x

    1. Initial program 99.4%

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

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(y + \frac{1}{x \cdot 9}\right) - \left(3 \cdot \sqrt{x}\right) \cdot 1} \]
      2. *-rgt-identity99.4%

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

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

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

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

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

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

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

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

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

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

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

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

        \[\leadsto \sqrt{x} \cdot \left(\frac{\color{blue}{0.3333333333333333}}{x} + \left(3 \cdot y - 3\right)\right) \]
      15. sub-neg99.5%

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

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

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

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

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

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \mathsf{fma}\left(3, y, -3\right)\right)} \]
    4. Taylor expanded in y around 0 69.0%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(0.3333333333333333 \cdot \frac{1}{x} - 3\right)} \]
    5. Step-by-step derivation
      1. sub-neg69.0%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{x} + \left(-3\right)\right)} \]
      2. associate-*r/69.0%

        \[\leadsto \sqrt{x} \cdot \left(\color{blue}{\frac{0.3333333333333333 \cdot 1}{x}} + \left(-3\right)\right) \]
      3. metadata-eval69.0%

        \[\leadsto \sqrt{x} \cdot \left(\frac{\color{blue}{0.3333333333333333}}{x} + \left(-3\right)\right) \]
      4. metadata-eval69.0%

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

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)} \]
    7. Taylor expanded in x around inf 69.0%

      \[\leadsto \sqrt{x} \cdot \color{blue}{-3} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification74.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq 2.6 \cdot 10^{-16}:\\ \;\;\;\;\sqrt{\frac{0.1111111111111111}{x}}\\ \mathbf{elif}\;x \leq 6.6 \cdot 10^{+57} \lor \neg \left(x \leq 2.4 \cdot 10^{+134}\right) \land \left(x \leq 4 \cdot 10^{+206} \lor \neg \left(x \leq 7.6 \cdot 10^{+230}\right) \land x \leq 1.58 \cdot 10^{+258}\right):\\ \;\;\;\;3 \cdot \left(y \cdot \sqrt{x}\right)\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot -3\\ \end{array} \]

Alternative 3: 62.0% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := \sqrt{x} \cdot -3\\ t_1 := 3 \cdot \left(y \cdot \sqrt{x}\right)\\ \mathbf{if}\;x \leq 4.2 \cdot 10^{-15}:\\ \;\;\;\;\sqrt{\frac{0.1111111111111111}{x}}\\ \mathbf{elif}\;x \leq 5.8 \cdot 10^{+57}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;x \leq 2 \cdot 10^{+134}:\\ \;\;\;\;t_0\\ \mathbf{elif}\;x \leq 7.2 \cdot 10^{+206}:\\ \;\;\;\;\sqrt{x} \cdot \left(y \cdot 3\right)\\ \mathbf{elif}\;x \leq 4.2 \cdot 10^{+231} \lor \neg \left(x \leq 1.1 \cdot 10^{+258}\right):\\ \;\;\;\;t_0\\ \mathbf{else}:\\ \;\;\;\;t_1\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (let* ((t_0 (* (sqrt x) -3.0)) (t_1 (* 3.0 (* y (sqrt x)))))
   (if (<= x 4.2e-15)
     (sqrt (/ 0.1111111111111111 x))
     (if (<= x 5.8e+57)
       t_1
       (if (<= x 2e+134)
         t_0
         (if (<= x 7.2e+206)
           (* (sqrt x) (* y 3.0))
           (if (or (<= x 4.2e+231) (not (<= x 1.1e+258))) t_0 t_1)))))))
double code(double x, double y) {
	double t_0 = sqrt(x) * -3.0;
	double t_1 = 3.0 * (y * sqrt(x));
	double tmp;
	if (x <= 4.2e-15) {
		tmp = sqrt((0.1111111111111111 / x));
	} else if (x <= 5.8e+57) {
		tmp = t_1;
	} else if (x <= 2e+134) {
		tmp = t_0;
	} else if (x <= 7.2e+206) {
		tmp = sqrt(x) * (y * 3.0);
	} else if ((x <= 4.2e+231) || !(x <= 1.1e+258)) {
		tmp = t_0;
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: t_0
    real(8) :: t_1
    real(8) :: tmp
    t_0 = sqrt(x) * (-3.0d0)
    t_1 = 3.0d0 * (y * sqrt(x))
    if (x <= 4.2d-15) then
        tmp = sqrt((0.1111111111111111d0 / x))
    else if (x <= 5.8d+57) then
        tmp = t_1
    else if (x <= 2d+134) then
        tmp = t_0
    else if (x <= 7.2d+206) then
        tmp = sqrt(x) * (y * 3.0d0)
    else if ((x <= 4.2d+231) .or. (.not. (x <= 1.1d+258))) then
        tmp = t_0
    else
        tmp = t_1
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double t_0 = Math.sqrt(x) * -3.0;
	double t_1 = 3.0 * (y * Math.sqrt(x));
	double tmp;
	if (x <= 4.2e-15) {
		tmp = Math.sqrt((0.1111111111111111 / x));
	} else if (x <= 5.8e+57) {
		tmp = t_1;
	} else if (x <= 2e+134) {
		tmp = t_0;
	} else if (x <= 7.2e+206) {
		tmp = Math.sqrt(x) * (y * 3.0);
	} else if ((x <= 4.2e+231) || !(x <= 1.1e+258)) {
		tmp = t_0;
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y):
	t_0 = math.sqrt(x) * -3.0
	t_1 = 3.0 * (y * math.sqrt(x))
	tmp = 0
	if x <= 4.2e-15:
		tmp = math.sqrt((0.1111111111111111 / x))
	elif x <= 5.8e+57:
		tmp = t_1
	elif x <= 2e+134:
		tmp = t_0
	elif x <= 7.2e+206:
		tmp = math.sqrt(x) * (y * 3.0)
	elif (x <= 4.2e+231) or not (x <= 1.1e+258):
		tmp = t_0
	else:
		tmp = t_1
	return tmp
function code(x, y)
	t_0 = Float64(sqrt(x) * -3.0)
	t_1 = Float64(3.0 * Float64(y * sqrt(x)))
	tmp = 0.0
	if (x <= 4.2e-15)
		tmp = sqrt(Float64(0.1111111111111111 / x));
	elseif (x <= 5.8e+57)
		tmp = t_1;
	elseif (x <= 2e+134)
		tmp = t_0;
	elseif (x <= 7.2e+206)
		tmp = Float64(sqrt(x) * Float64(y * 3.0));
	elseif ((x <= 4.2e+231) || !(x <= 1.1e+258))
		tmp = t_0;
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y)
	t_0 = sqrt(x) * -3.0;
	t_1 = 3.0 * (y * sqrt(x));
	tmp = 0.0;
	if (x <= 4.2e-15)
		tmp = sqrt((0.1111111111111111 / x));
	elseif (x <= 5.8e+57)
		tmp = t_1;
	elseif (x <= 2e+134)
		tmp = t_0;
	elseif (x <= 7.2e+206)
		tmp = sqrt(x) * (y * 3.0);
	elseif ((x <= 4.2e+231) || ~((x <= 1.1e+258)))
		tmp = t_0;
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_] := Block[{t$95$0 = N[(N[Sqrt[x], $MachinePrecision] * -3.0), $MachinePrecision]}, Block[{t$95$1 = N[(3.0 * N[(y * N[Sqrt[x], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[x, 4.2e-15], N[Sqrt[N[(0.1111111111111111 / x), $MachinePrecision]], $MachinePrecision], If[LessEqual[x, 5.8e+57], t$95$1, If[LessEqual[x, 2e+134], t$95$0, If[LessEqual[x, 7.2e+206], N[(N[Sqrt[x], $MachinePrecision] * N[(y * 3.0), $MachinePrecision]), $MachinePrecision], If[Or[LessEqual[x, 4.2e+231], N[Not[LessEqual[x, 1.1e+258]], $MachinePrecision]], t$95$0, t$95$1]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := \sqrt{x} \cdot -3\\
t_1 := 3 \cdot \left(y \cdot \sqrt{x}\right)\\
\mathbf{if}\;x \leq 4.2 \cdot 10^{-15}:\\
\;\;\;\;\sqrt{\frac{0.1111111111111111}{x}}\\

\mathbf{elif}\;x \leq 5.8 \cdot 10^{+57}:\\
\;\;\;\;t_1\\

\mathbf{elif}\;x \leq 2 \cdot 10^{+134}:\\
\;\;\;\;t_0\\

\mathbf{elif}\;x \leq 7.2 \cdot 10^{+206}:\\
\;\;\;\;\sqrt{x} \cdot \left(y \cdot 3\right)\\

\mathbf{elif}\;x \leq 4.2 \cdot 10^{+231} \lor \neg \left(x \leq 1.1 \cdot 10^{+258}\right):\\
\;\;\;\;t_0\\

\mathbf{else}:\\
\;\;\;\;t_1\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if x < 4.19999999999999962e-15

    1. Initial program 99.2%

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

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

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

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

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

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

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

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

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

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\frac{0.1111111111111111}{x} + \left(y + -1\right)\right)\right)} \]
    4. Applied egg-rr45.0%

      \[\leadsto 3 \cdot \color{blue}{\sqrt{x \cdot {\left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)}^{2}}} \]
    5. Step-by-step derivation
      1. *-commutative45.0%

        \[\leadsto 3 \cdot \sqrt{\color{blue}{{\left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)}^{2} \cdot x}} \]
    6. Simplified45.0%

      \[\leadsto 3 \cdot \color{blue}{\sqrt{{\left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)}^{2} \cdot x}} \]
    7. Taylor expanded in x around 0 81.2%

      \[\leadsto 3 \cdot \sqrt{\color{blue}{\frac{0.012345679012345678}{x}}} \]
    8. Step-by-step derivation
      1. add-sqr-sqrt80.8%

        \[\leadsto \color{blue}{\sqrt{3 \cdot \sqrt{\frac{0.012345679012345678}{x}}} \cdot \sqrt{3 \cdot \sqrt{\frac{0.012345679012345678}{x}}}} \]
      2. sqrt-unprod81.2%

        \[\leadsto \color{blue}{\sqrt{\left(3 \cdot \sqrt{\frac{0.012345679012345678}{x}}\right) \cdot \left(3 \cdot \sqrt{\frac{0.012345679012345678}{x}}\right)}} \]
      3. *-commutative81.2%

        \[\leadsto \sqrt{\color{blue}{\left(\sqrt{\frac{0.012345679012345678}{x}} \cdot 3\right)} \cdot \left(3 \cdot \sqrt{\frac{0.012345679012345678}{x}}\right)} \]
      4. *-commutative81.2%

        \[\leadsto \sqrt{\left(\sqrt{\frac{0.012345679012345678}{x}} \cdot 3\right) \cdot \color{blue}{\left(\sqrt{\frac{0.012345679012345678}{x}} \cdot 3\right)}} \]
      5. swap-sqr81.2%

        \[\leadsto \sqrt{\color{blue}{\left(\sqrt{\frac{0.012345679012345678}{x}} \cdot \sqrt{\frac{0.012345679012345678}{x}}\right) \cdot \left(3 \cdot 3\right)}} \]
      6. add-sqr-sqrt81.3%

        \[\leadsto \sqrt{\color{blue}{\frac{0.012345679012345678}{x}} \cdot \left(3 \cdot 3\right)} \]
      7. metadata-eval81.3%

        \[\leadsto \sqrt{\frac{0.012345679012345678}{x} \cdot \color{blue}{9}} \]
    9. Applied egg-rr81.3%

      \[\leadsto \color{blue}{\sqrt{\frac{0.012345679012345678}{x} \cdot 9}} \]
    10. Step-by-step derivation
      1. associate-*l/81.3%

        \[\leadsto \sqrt{\color{blue}{\frac{0.012345679012345678 \cdot 9}{x}}} \]
      2. metadata-eval81.3%

        \[\leadsto \sqrt{\frac{\color{blue}{0.1111111111111111}}{x}} \]
    11. Simplified81.3%

      \[\leadsto \color{blue}{\sqrt{\frac{0.1111111111111111}{x}}} \]

    if 4.19999999999999962e-15 < x < 5.8000000000000003e57 or 4.19999999999999969e231 < x < 1.09999999999999991e258

    1. Initial program 99.5%

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

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(y + \frac{1}{x \cdot 9}\right) - \left(3 \cdot \sqrt{x}\right) \cdot 1} \]
      2. *-rgt-identity99.4%

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

        \[\leadsto \sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \left(3 \cdot y + 3 \cdot \color{blue}{\left(-1\right)}\right)\right) \]
      19. fma-def99.5%

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

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \mathsf{fma}\left(3, y, -3\right)\right)} \]
    4. Taylor expanded in y around inf 71.2%

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

    if 5.8000000000000003e57 < x < 1.99999999999999984e134 or 7.20000000000000057e206 < x < 4.19999999999999969e231 or 1.09999999999999991e258 < x

    1. Initial program 99.4%

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

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(y + \frac{1}{x \cdot 9}\right) - \left(3 \cdot \sqrt{x}\right) \cdot 1} \]
      2. *-rgt-identity99.4%

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

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

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

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

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

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

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

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

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

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

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

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

        \[\leadsto \sqrt{x} \cdot \left(\frac{\color{blue}{0.3333333333333333}}{x} + \left(3 \cdot y - 3\right)\right) \]
      15. sub-neg99.5%

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

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

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

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

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

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \mathsf{fma}\left(3, y, -3\right)\right)} \]
    4. Taylor expanded in y around 0 69.0%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(0.3333333333333333 \cdot \frac{1}{x} - 3\right)} \]
    5. Step-by-step derivation
      1. sub-neg69.0%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{x} + \left(-3\right)\right)} \]
      2. associate-*r/69.0%

        \[\leadsto \sqrt{x} \cdot \left(\color{blue}{\frac{0.3333333333333333 \cdot 1}{x}} + \left(-3\right)\right) \]
      3. metadata-eval69.0%

        \[\leadsto \sqrt{x} \cdot \left(\frac{\color{blue}{0.3333333333333333}}{x} + \left(-3\right)\right) \]
      4. metadata-eval69.0%

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

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)} \]
    7. Taylor expanded in x around inf 69.0%

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

    if 1.99999999999999984e134 < x < 7.20000000000000057e206

    1. Initial program 99.7%

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

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(y + \frac{1}{x \cdot 9}\right) - \left(3 \cdot \sqrt{x}\right) \cdot 1} \]
      2. *-rgt-identity99.7%

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

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

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

        \[\leadsto \color{blue}{\left(3 \cdot \left(y + \frac{1}{x \cdot 9}\right)\right) \cdot \sqrt{x}} - 3 \cdot \sqrt{x} \]
      6. distribute-rgt-out--99.8%

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

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

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

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

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

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

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

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

        \[\leadsto \sqrt{x} \cdot \left(\frac{\color{blue}{0.3333333333333333}}{x} + \left(3 \cdot y - 3\right)\right) \]
      15. sub-neg99.8%

        \[\leadsto \sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \color{blue}{\left(3 \cdot y + \left(-3\right)\right)}\right) \]
      16. metadata-eval99.8%

        \[\leadsto \sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \left(3 \cdot y + \color{blue}{-3}\right)\right) \]
      17. metadata-eval99.8%

        \[\leadsto \sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \left(3 \cdot y + \color{blue}{3 \cdot -1}\right)\right) \]
      18. metadata-eval99.8%

        \[\leadsto \sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \left(3 \cdot y + 3 \cdot \color{blue}{\left(-1\right)}\right)\right) \]
      19. fma-def99.8%

        \[\leadsto \sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \color{blue}{\mathsf{fma}\left(3, y, 3 \cdot \left(-1\right)\right)}\right) \]
    3. Simplified99.8%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \mathsf{fma}\left(3, y, -3\right)\right)} \]
    4. Taylor expanded in y around inf 64.2%

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

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq 4.2 \cdot 10^{-15}:\\ \;\;\;\;\sqrt{\frac{0.1111111111111111}{x}}\\ \mathbf{elif}\;x \leq 5.8 \cdot 10^{+57}:\\ \;\;\;\;3 \cdot \left(y \cdot \sqrt{x}\right)\\ \mathbf{elif}\;x \leq 2 \cdot 10^{+134}:\\ \;\;\;\;\sqrt{x} \cdot -3\\ \mathbf{elif}\;x \leq 7.2 \cdot 10^{+206}:\\ \;\;\;\;\sqrt{x} \cdot \left(y \cdot 3\right)\\ \mathbf{elif}\;x \leq 4.2 \cdot 10^{+231} \lor \neg \left(x \leq 1.1 \cdot 10^{+258}\right):\\ \;\;\;\;\sqrt{x} \cdot -3\\ \mathbf{else}:\\ \;\;\;\;3 \cdot \left(y \cdot \sqrt{x}\right)\\ \end{array} \]

Alternative 4: 85.5% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -6.5 \cdot 10^{+101} \lor \neg \left(y \leq 1.35 \cdot 10^{+15}\right):\\ \;\;\;\;3 \cdot \left(y \cdot \sqrt{x}\right)\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (or (<= y -6.5e+101) (not (<= y 1.35e+15)))
   (* 3.0 (* y (sqrt x)))
   (* (sqrt x) (+ (/ 0.3333333333333333 x) -3.0))))
double code(double x, double y) {
	double tmp;
	if ((y <= -6.5e+101) || !(y <= 1.35e+15)) {
		tmp = 3.0 * (y * sqrt(x));
	} else {
		tmp = sqrt(x) * ((0.3333333333333333 / x) + -3.0);
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if ((y <= (-6.5d+101)) .or. (.not. (y <= 1.35d+15))) then
        tmp = 3.0d0 * (y * sqrt(x))
    else
        tmp = sqrt(x) * ((0.3333333333333333d0 / x) + (-3.0d0))
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if ((y <= -6.5e+101) || !(y <= 1.35e+15)) {
		tmp = 3.0 * (y * Math.sqrt(x));
	} else {
		tmp = Math.sqrt(x) * ((0.3333333333333333 / x) + -3.0);
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if (y <= -6.5e+101) or not (y <= 1.35e+15):
		tmp = 3.0 * (y * math.sqrt(x))
	else:
		tmp = math.sqrt(x) * ((0.3333333333333333 / x) + -3.0)
	return tmp
function code(x, y)
	tmp = 0.0
	if ((y <= -6.5e+101) || !(y <= 1.35e+15))
		tmp = Float64(3.0 * Float64(y * sqrt(x)));
	else
		tmp = Float64(sqrt(x) * Float64(Float64(0.3333333333333333 / x) + -3.0));
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if ((y <= -6.5e+101) || ~((y <= 1.35e+15)))
		tmp = 3.0 * (y * sqrt(x));
	else
		tmp = sqrt(x) * ((0.3333333333333333 / x) + -3.0);
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[Or[LessEqual[y, -6.5e+101], N[Not[LessEqual[y, 1.35e+15]], $MachinePrecision]], N[(3.0 * N[(y * N[Sqrt[x], $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[Sqrt[x], $MachinePrecision] * N[(N[(0.3333333333333333 / x), $MachinePrecision] + -3.0), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -6.5 \cdot 10^{+101} \lor \neg \left(y \leq 1.35 \cdot 10^{+15}\right):\\
\;\;\;\;3 \cdot \left(y \cdot \sqrt{x}\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -6.50000000000000016e101 or 1.35e15 < y

    1. Initial program 99.5%

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

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(y + \frac{1}{x \cdot 9}\right) - \left(3 \cdot \sqrt{x}\right) \cdot 1} \]
      2. *-rgt-identity99.5%

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

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

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

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

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

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

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

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

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

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

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

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

        \[\leadsto \sqrt{x} \cdot \left(\frac{\color{blue}{0.3333333333333333}}{x} + \left(3 \cdot y - 3\right)\right) \]
      15. sub-neg99.5%

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

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

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

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

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

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \mathsf{fma}\left(3, y, -3\right)\right)} \]
    4. Taylor expanded in y around inf 82.2%

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

    if -6.50000000000000016e101 < y < 1.35e15

    1. Initial program 99.3%

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

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(y + \frac{1}{x \cdot 9}\right) - \left(3 \cdot \sqrt{x}\right) \cdot 1} \]
      2. *-rgt-identity99.2%

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

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

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

        \[\leadsto \color{blue}{\left(3 \cdot \left(y + \frac{1}{x \cdot 9}\right)\right) \cdot \sqrt{x}} - 3 \cdot \sqrt{x} \]
      6. distribute-rgt-out--99.3%

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

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

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

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

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

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

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

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

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

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

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

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

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

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

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \mathsf{fma}\left(3, y, -3\right)\right)} \]
    4. Taylor expanded in y around 0 96.2%

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

        \[\leadsto \sqrt{x} \cdot \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{x} + \left(-3\right)\right)} \]
      2. associate-*r/96.2%

        \[\leadsto \sqrt{x} \cdot \left(\color{blue}{\frac{0.3333333333333333 \cdot 1}{x}} + \left(-3\right)\right) \]
      3. metadata-eval96.2%

        \[\leadsto \sqrt{x} \cdot \left(\frac{\color{blue}{0.3333333333333333}}{x} + \left(-3\right)\right) \]
      4. metadata-eval96.2%

        \[\leadsto \sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \color{blue}{-3}\right) \]
    6. Simplified96.2%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification90.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -6.5 \cdot 10^{+101} \lor \neg \left(y \leq 1.35 \cdot 10^{+15}\right):\\ \;\;\;\;3 \cdot \left(y \cdot \sqrt{x}\right)\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)\\ \end{array} \]

Alternative 5: 85.4% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq 58:\\ \;\;\;\;\sqrt{x} \cdot \left(0.3333333333333333 \cdot \frac{1}{x} - 3\right)\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x \cdot 9} \cdot \left(y + -1\right)\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (<= x 58.0)
   (* (sqrt x) (- (* 0.3333333333333333 (/ 1.0 x)) 3.0))
   (* (sqrt (* x 9.0)) (+ y -1.0))))
double code(double x, double y) {
	double tmp;
	if (x <= 58.0) {
		tmp = sqrt(x) * ((0.3333333333333333 * (1.0 / x)) - 3.0);
	} else {
		tmp = sqrt((x * 9.0)) * (y + -1.0);
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if (x <= 58.0d0) then
        tmp = sqrt(x) * ((0.3333333333333333d0 * (1.0d0 / x)) - 3.0d0)
    else
        tmp = sqrt((x * 9.0d0)) * (y + (-1.0d0))
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if (x <= 58.0) {
		tmp = Math.sqrt(x) * ((0.3333333333333333 * (1.0 / x)) - 3.0);
	} else {
		tmp = Math.sqrt((x * 9.0)) * (y + -1.0);
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if x <= 58.0:
		tmp = math.sqrt(x) * ((0.3333333333333333 * (1.0 / x)) - 3.0)
	else:
		tmp = math.sqrt((x * 9.0)) * (y + -1.0)
	return tmp
function code(x, y)
	tmp = 0.0
	if (x <= 58.0)
		tmp = Float64(sqrt(x) * Float64(Float64(0.3333333333333333 * Float64(1.0 / x)) - 3.0));
	else
		tmp = Float64(sqrt(Float64(x * 9.0)) * Float64(y + -1.0));
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if (x <= 58.0)
		tmp = sqrt(x) * ((0.3333333333333333 * (1.0 / x)) - 3.0);
	else
		tmp = sqrt((x * 9.0)) * (y + -1.0);
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[LessEqual[x, 58.0], N[(N[Sqrt[x], $MachinePrecision] * N[(N[(0.3333333333333333 * N[(1.0 / x), $MachinePrecision]), $MachinePrecision] - 3.0), $MachinePrecision]), $MachinePrecision], N[(N[Sqrt[N[(x * 9.0), $MachinePrecision]], $MachinePrecision] * N[(y + -1.0), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq 58:\\
\;\;\;\;\sqrt{x} \cdot \left(0.3333333333333333 \cdot \frac{1}{x} - 3\right)\\

\mathbf{else}:\\
\;\;\;\;\sqrt{x \cdot 9} \cdot \left(y + -1\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < 58

    1. Initial program 99.1%

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

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(y + \frac{1}{x \cdot 9}\right) - \left(3 \cdot \sqrt{x}\right) \cdot 1} \]
      2. *-rgt-identity99.1%

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

        \[\leadsto \sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \left(3 \cdot y + 3 \cdot \color{blue}{\left(-1\right)}\right)\right) \]
      19. fma-def99.3%

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

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \mathsf{fma}\left(3, y, -3\right)\right)} \]
    4. Taylor expanded in y around 0 79.4%

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

    if 58 < x

    1. Initial program 99.5%

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

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

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

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

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

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

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

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

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

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\frac{0.1111111111111111}{x} + \left(y + -1\right)\right)\right)} \]
    4. Applied egg-rr24.2%

      \[\leadsto \color{blue}{\log \left({\left(e^{\sqrt{x \cdot 9}}\right)}^{\left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)}\right)} \]
    5. Step-by-step derivation
      1. log-pow24.2%

        \[\leadsto \color{blue}{\left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right) \cdot \log \left(e^{\sqrt{x \cdot 9}}\right)} \]
      2. rem-log-exp99.8%

        \[\leadsto \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right) \cdot \color{blue}{\sqrt{x \cdot 9}} \]
      3. *-commutative99.8%

        \[\leadsto \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right) \cdot \sqrt{\color{blue}{9 \cdot x}} \]
    6. Simplified99.8%

      \[\leadsto \color{blue}{\left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right) \cdot \sqrt{9 \cdot x}} \]
    7. Taylor expanded in x around inf 99.8%

      \[\leadsto \left(y + \color{blue}{-1}\right) \cdot \sqrt{9 \cdot x} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification89.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq 58:\\ \;\;\;\;\sqrt{x} \cdot \left(0.3333333333333333 \cdot \frac{1}{x} - 3\right)\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x \cdot 9} \cdot \left(y + -1\right)\\ \end{array} \]

Alternative 6: 85.6% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq 0.29:\\ \;\;\;\;\sqrt{x} \cdot \left(\frac{1}{x \cdot 3} - 3\right)\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x \cdot 9} \cdot \left(y + -1\right)\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (<= x 0.29)
   (* (sqrt x) (- (/ 1.0 (* x 3.0)) 3.0))
   (* (sqrt (* x 9.0)) (+ y -1.0))))
double code(double x, double y) {
	double tmp;
	if (x <= 0.29) {
		tmp = sqrt(x) * ((1.0 / (x * 3.0)) - 3.0);
	} else {
		tmp = sqrt((x * 9.0)) * (y + -1.0);
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if (x <= 0.29d0) then
        tmp = sqrt(x) * ((1.0d0 / (x * 3.0d0)) - 3.0d0)
    else
        tmp = sqrt((x * 9.0d0)) * (y + (-1.0d0))
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if (x <= 0.29) {
		tmp = Math.sqrt(x) * ((1.0 / (x * 3.0)) - 3.0);
	} else {
		tmp = Math.sqrt((x * 9.0)) * (y + -1.0);
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if x <= 0.29:
		tmp = math.sqrt(x) * ((1.0 / (x * 3.0)) - 3.0)
	else:
		tmp = math.sqrt((x * 9.0)) * (y + -1.0)
	return tmp
function code(x, y)
	tmp = 0.0
	if (x <= 0.29)
		tmp = Float64(sqrt(x) * Float64(Float64(1.0 / Float64(x * 3.0)) - 3.0));
	else
		tmp = Float64(sqrt(Float64(x * 9.0)) * Float64(y + -1.0));
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if (x <= 0.29)
		tmp = sqrt(x) * ((1.0 / (x * 3.0)) - 3.0);
	else
		tmp = sqrt((x * 9.0)) * (y + -1.0);
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[LessEqual[x, 0.29], N[(N[Sqrt[x], $MachinePrecision] * N[(N[(1.0 / N[(x * 3.0), $MachinePrecision]), $MachinePrecision] - 3.0), $MachinePrecision]), $MachinePrecision], N[(N[Sqrt[N[(x * 9.0), $MachinePrecision]], $MachinePrecision] * N[(y + -1.0), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq 0.29:\\
\;\;\;\;\sqrt{x} \cdot \left(\frac{1}{x \cdot 3} - 3\right)\\

\mathbf{else}:\\
\;\;\;\;\sqrt{x \cdot 9} \cdot \left(y + -1\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < 0.28999999999999998

    1. Initial program 99.1%

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

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(y + \frac{1}{x \cdot 9}\right) - \left(3 \cdot \sqrt{x}\right) \cdot 1} \]
      2. *-rgt-identity99.1%

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

        \[\leadsto \sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \left(3 \cdot y + 3 \cdot \color{blue}{\left(-1\right)}\right)\right) \]
      19. fma-def99.3%

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

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \mathsf{fma}\left(3, y, -3\right)\right)} \]
    4. Taylor expanded in y around 0 79.4%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(0.3333333333333333 \cdot \frac{1}{x} - 3\right)} \]
    5. Step-by-step derivation
      1. div-inv79.3%

        \[\leadsto \sqrt{x} \cdot \left(\color{blue}{\frac{0.3333333333333333}{x}} - 3\right) \]
      2. clear-num79.2%

        \[\leadsto \sqrt{x} \cdot \left(\color{blue}{\frac{1}{\frac{x}{0.3333333333333333}}} - 3\right) \]
      3. div-inv79.4%

        \[\leadsto \sqrt{x} \cdot \left(\frac{1}{\color{blue}{x \cdot \frac{1}{0.3333333333333333}}} - 3\right) \]
      4. metadata-eval79.4%

        \[\leadsto \sqrt{x} \cdot \left(\frac{1}{x \cdot \color{blue}{3}} - 3\right) \]
    6. Applied egg-rr79.4%

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

    if 0.28999999999999998 < x

    1. Initial program 99.5%

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

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

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

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

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

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

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

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

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

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\frac{0.1111111111111111}{x} + \left(y + -1\right)\right)\right)} \]
    4. Applied egg-rr24.2%

      \[\leadsto \color{blue}{\log \left({\left(e^{\sqrt{x \cdot 9}}\right)}^{\left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)}\right)} \]
    5. Step-by-step derivation
      1. log-pow24.2%

        \[\leadsto \color{blue}{\left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right) \cdot \log \left(e^{\sqrt{x \cdot 9}}\right)} \]
      2. rem-log-exp99.8%

        \[\leadsto \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right) \cdot \color{blue}{\sqrt{x \cdot 9}} \]
      3. *-commutative99.8%

        \[\leadsto \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right) \cdot \sqrt{\color{blue}{9 \cdot x}} \]
    6. Simplified99.8%

      \[\leadsto \color{blue}{\left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right) \cdot \sqrt{9 \cdot x}} \]
    7. Taylor expanded in x around inf 99.8%

      \[\leadsto \left(y + \color{blue}{-1}\right) \cdot \sqrt{9 \cdot x} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification89.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq 0.29:\\ \;\;\;\;\sqrt{x} \cdot \left(\frac{1}{x \cdot 3} - 3\right)\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x \cdot 9} \cdot \left(y + -1\right)\\ \end{array} \]

Alternative 7: 99.4% accurate, 1.0× speedup?

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

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

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

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

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

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

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

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

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

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

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

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

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

Alternative 8: 99.4% accurate, 1.0× speedup?

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

\\
\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \left(y \cdot 3 - 3\right)\right)
\end{array}
Derivation
  1. Initial program 99.3%

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

      \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(y + \frac{1}{x \cdot 9}\right) - \left(3 \cdot \sqrt{x}\right) \cdot 1} \]
    2. *-rgt-identity99.3%

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

      \[\leadsto \sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \left(3 \cdot y + 3 \cdot \color{blue}{\left(-1\right)}\right)\right) \]
    19. fma-def99.5%

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

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

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

      \[\leadsto \sqrt{x} \cdot \left(\color{blue}{\left(0.3333333333333333 \cdot \frac{1}{x} + 3 \cdot y\right)} - 3\right) \]
    2. associate--l+99.4%

      \[\leadsto \sqrt{x} \cdot \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{x} + \left(3 \cdot y - 3\right)\right)} \]
    3. un-div-inv99.4%

      \[\leadsto \sqrt{x} \cdot \left(\color{blue}{\frac{0.3333333333333333}{x}} + \left(3 \cdot y - 3\right)\right) \]
  6. Applied egg-rr99.4%

    \[\leadsto \sqrt{x} \cdot \color{blue}{\left(\frac{0.3333333333333333}{x} + \left(3 \cdot y - 3\right)\right)} \]
  7. Final simplification99.4%

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

Alternative 9: 99.5% accurate, 1.0× speedup?

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

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

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

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

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

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

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

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

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

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

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

    \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\frac{0.1111111111111111}{x} + \left(y + -1\right)\right)\right)} \]
  4. Applied egg-rr14.5%

    \[\leadsto \color{blue}{\log \left({\left(e^{\sqrt{x \cdot 9}}\right)}^{\left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)}\right)} \]
  5. Step-by-step derivation
    1. log-pow17.7%

      \[\leadsto \color{blue}{\left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right) \cdot \log \left(e^{\sqrt{x \cdot 9}}\right)} \]
    2. rem-log-exp99.5%

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

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

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

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

Alternative 10: 85.4% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq 5000:\\ \;\;\;\;\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot \left(y \cdot 3 - 3\right)\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (<= x 5000.0)
   (* (sqrt x) (+ (/ 0.3333333333333333 x) -3.0))
   (* (sqrt x) (- (* y 3.0) 3.0))))
double code(double x, double y) {
	double tmp;
	if (x <= 5000.0) {
		tmp = sqrt(x) * ((0.3333333333333333 / x) + -3.0);
	} else {
		tmp = sqrt(x) * ((y * 3.0) - 3.0);
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if (x <= 5000.0d0) then
        tmp = sqrt(x) * ((0.3333333333333333d0 / x) + (-3.0d0))
    else
        tmp = sqrt(x) * ((y * 3.0d0) - 3.0d0)
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if (x <= 5000.0) {
		tmp = Math.sqrt(x) * ((0.3333333333333333 / x) + -3.0);
	} else {
		tmp = Math.sqrt(x) * ((y * 3.0) - 3.0);
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if x <= 5000.0:
		tmp = math.sqrt(x) * ((0.3333333333333333 / x) + -3.0)
	else:
		tmp = math.sqrt(x) * ((y * 3.0) - 3.0)
	return tmp
function code(x, y)
	tmp = 0.0
	if (x <= 5000.0)
		tmp = Float64(sqrt(x) * Float64(Float64(0.3333333333333333 / x) + -3.0));
	else
		tmp = Float64(sqrt(x) * Float64(Float64(y * 3.0) - 3.0));
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if (x <= 5000.0)
		tmp = sqrt(x) * ((0.3333333333333333 / x) + -3.0);
	else
		tmp = sqrt(x) * ((y * 3.0) - 3.0);
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[LessEqual[x, 5000.0], N[(N[Sqrt[x], $MachinePrecision] * N[(N[(0.3333333333333333 / x), $MachinePrecision] + -3.0), $MachinePrecision]), $MachinePrecision], N[(N[Sqrt[x], $MachinePrecision] * N[(N[(y * 3.0), $MachinePrecision] - 3.0), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq 5000:\\
\;\;\;\;\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < 5e3

    1. Initial program 99.1%

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

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(y + \frac{1}{x \cdot 9}\right) - \left(3 \cdot \sqrt{x}\right) \cdot 1} \]
      2. *-rgt-identity99.1%

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

        \[\leadsto \sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \left(3 \cdot y + 3 \cdot \color{blue}{\left(-1\right)}\right)\right) \]
      19. fma-def99.3%

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

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \mathsf{fma}\left(3, y, -3\right)\right)} \]
    4. Taylor expanded in y around 0 79.4%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(0.3333333333333333 \cdot \frac{1}{x} - 3\right)} \]
    5. Step-by-step derivation
      1. sub-neg79.4%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{x} + \left(-3\right)\right)} \]
      2. associate-*r/79.3%

        \[\leadsto \sqrt{x} \cdot \left(\color{blue}{\frac{0.3333333333333333 \cdot 1}{x}} + \left(-3\right)\right) \]
      3. metadata-eval79.3%

        \[\leadsto \sqrt{x} \cdot \left(\frac{\color{blue}{0.3333333333333333}}{x} + \left(-3\right)\right) \]
      4. metadata-eval79.3%

        \[\leadsto \sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \color{blue}{-3}\right) \]
    6. Simplified79.3%

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

    if 5e3 < x

    1. Initial program 99.5%

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

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(y + \frac{1}{x \cdot 9}\right) - \left(3 \cdot \sqrt{x}\right) \cdot 1} \]
      2. *-rgt-identity99.5%

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

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

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

        \[\leadsto \color{blue}{\left(3 \cdot \left(y + \frac{1}{x \cdot 9}\right)\right) \cdot \sqrt{x}} - 3 \cdot \sqrt{x} \]
      6. distribute-rgt-out--99.6%

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

      \[\leadsto \sqrt{x} \cdot \color{blue}{\left(3 \cdot y - 3\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification89.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq 5000:\\ \;\;\;\;\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot \left(y \cdot 3 - 3\right)\\ \end{array} \]

Alternative 11: 85.5% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq 1.5:\\ \;\;\;\;\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x \cdot 9} \cdot \left(y + -1\right)\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (<= x 1.5)
   (* (sqrt x) (+ (/ 0.3333333333333333 x) -3.0))
   (* (sqrt (* x 9.0)) (+ y -1.0))))
double code(double x, double y) {
	double tmp;
	if (x <= 1.5) {
		tmp = sqrt(x) * ((0.3333333333333333 / x) + -3.0);
	} else {
		tmp = sqrt((x * 9.0)) * (y + -1.0);
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if (x <= 1.5d0) then
        tmp = sqrt(x) * ((0.3333333333333333d0 / x) + (-3.0d0))
    else
        tmp = sqrt((x * 9.0d0)) * (y + (-1.0d0))
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if (x <= 1.5) {
		tmp = Math.sqrt(x) * ((0.3333333333333333 / x) + -3.0);
	} else {
		tmp = Math.sqrt((x * 9.0)) * (y + -1.0);
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if x <= 1.5:
		tmp = math.sqrt(x) * ((0.3333333333333333 / x) + -3.0)
	else:
		tmp = math.sqrt((x * 9.0)) * (y + -1.0)
	return tmp
function code(x, y)
	tmp = 0.0
	if (x <= 1.5)
		tmp = Float64(sqrt(x) * Float64(Float64(0.3333333333333333 / x) + -3.0));
	else
		tmp = Float64(sqrt(Float64(x * 9.0)) * Float64(y + -1.0));
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if (x <= 1.5)
		tmp = sqrt(x) * ((0.3333333333333333 / x) + -3.0);
	else
		tmp = sqrt((x * 9.0)) * (y + -1.0);
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[LessEqual[x, 1.5], N[(N[Sqrt[x], $MachinePrecision] * N[(N[(0.3333333333333333 / x), $MachinePrecision] + -3.0), $MachinePrecision]), $MachinePrecision], N[(N[Sqrt[N[(x * 9.0), $MachinePrecision]], $MachinePrecision] * N[(y + -1.0), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq 1.5:\\
\;\;\;\;\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)\\

\mathbf{else}:\\
\;\;\;\;\sqrt{x \cdot 9} \cdot \left(y + -1\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < 1.5

    1. Initial program 99.1%

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

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(y + \frac{1}{x \cdot 9}\right) - \left(3 \cdot \sqrt{x}\right) \cdot 1} \]
      2. *-rgt-identity99.1%

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

        \[\leadsto \sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \left(3 \cdot y + 3 \cdot \color{blue}{\left(-1\right)}\right)\right) \]
      19. fma-def99.3%

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

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \mathsf{fma}\left(3, y, -3\right)\right)} \]
    4. Taylor expanded in y around 0 79.4%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(0.3333333333333333 \cdot \frac{1}{x} - 3\right)} \]
    5. Step-by-step derivation
      1. sub-neg79.4%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{x} + \left(-3\right)\right)} \]
      2. associate-*r/79.3%

        \[\leadsto \sqrt{x} \cdot \left(\color{blue}{\frac{0.3333333333333333 \cdot 1}{x}} + \left(-3\right)\right) \]
      3. metadata-eval79.3%

        \[\leadsto \sqrt{x} \cdot \left(\frac{\color{blue}{0.3333333333333333}}{x} + \left(-3\right)\right) \]
      4. metadata-eval79.3%

        \[\leadsto \sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \color{blue}{-3}\right) \]
    6. Simplified79.3%

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

    if 1.5 < x

    1. Initial program 99.5%

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

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

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

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

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

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

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

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

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

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\frac{0.1111111111111111}{x} + \left(y + -1\right)\right)\right)} \]
    4. Applied egg-rr24.2%

      \[\leadsto \color{blue}{\log \left({\left(e^{\sqrt{x \cdot 9}}\right)}^{\left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)}\right)} \]
    5. Step-by-step derivation
      1. log-pow24.2%

        \[\leadsto \color{blue}{\left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right) \cdot \log \left(e^{\sqrt{x \cdot 9}}\right)} \]
      2. rem-log-exp99.8%

        \[\leadsto \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right) \cdot \color{blue}{\sqrt{x \cdot 9}} \]
      3. *-commutative99.8%

        \[\leadsto \left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right) \cdot \sqrt{\color{blue}{9 \cdot x}} \]
    6. Simplified99.8%

      \[\leadsto \color{blue}{\left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right) \cdot \sqrt{9 \cdot x}} \]
    7. Taylor expanded in x around inf 99.8%

      \[\leadsto \left(y + \color{blue}{-1}\right) \cdot \sqrt{9 \cdot x} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification89.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq 1.5:\\ \;\;\;\;\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x \cdot 9} \cdot \left(y + -1\right)\\ \end{array} \]

Alternative 12: 61.1% accurate, 1.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq 0.112:\\ \;\;\;\;\sqrt{\frac{0.1111111111111111}{x}}\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot -3\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (if (<= x 0.112) (sqrt (/ 0.1111111111111111 x)) (* (sqrt x) -3.0)))
double code(double x, double y) {
	double tmp;
	if (x <= 0.112) {
		tmp = sqrt((0.1111111111111111 / x));
	} else {
		tmp = sqrt(x) * -3.0;
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if (x <= 0.112d0) then
        tmp = sqrt((0.1111111111111111d0 / x))
    else
        tmp = sqrt(x) * (-3.0d0)
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double tmp;
	if (x <= 0.112) {
		tmp = Math.sqrt((0.1111111111111111 / x));
	} else {
		tmp = Math.sqrt(x) * -3.0;
	}
	return tmp;
}
def code(x, y):
	tmp = 0
	if x <= 0.112:
		tmp = math.sqrt((0.1111111111111111 / x))
	else:
		tmp = math.sqrt(x) * -3.0
	return tmp
function code(x, y)
	tmp = 0.0
	if (x <= 0.112)
		tmp = sqrt(Float64(0.1111111111111111 / x));
	else
		tmp = Float64(sqrt(x) * -3.0);
	end
	return tmp
end
function tmp_2 = code(x, y)
	tmp = 0.0;
	if (x <= 0.112)
		tmp = sqrt((0.1111111111111111 / x));
	else
		tmp = sqrt(x) * -3.0;
	end
	tmp_2 = tmp;
end
code[x_, y_] := If[LessEqual[x, 0.112], N[Sqrt[N[(0.1111111111111111 / x), $MachinePrecision]], $MachinePrecision], N[(N[Sqrt[x], $MachinePrecision] * -3.0), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq 0.112:\\
\;\;\;\;\sqrt{\frac{0.1111111111111111}{x}}\\

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


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

    1. Initial program 99.2%

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

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

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

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

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

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

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

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

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

      \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\frac{0.1111111111111111}{x} + \left(y + -1\right)\right)\right)} \]
    4. Applied egg-rr46.5%

      \[\leadsto 3 \cdot \color{blue}{\sqrt{x \cdot {\left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)}^{2}}} \]
    5. Step-by-step derivation
      1. *-commutative46.5%

        \[\leadsto 3 \cdot \sqrt{\color{blue}{{\left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)}^{2} \cdot x}} \]
    6. Simplified46.5%

      \[\leadsto 3 \cdot \color{blue}{\sqrt{{\left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)}^{2} \cdot x}} \]
    7. Taylor expanded in x around 0 77.9%

      \[\leadsto 3 \cdot \sqrt{\color{blue}{\frac{0.012345679012345678}{x}}} \]
    8. Step-by-step derivation
      1. add-sqr-sqrt77.5%

        \[\leadsto \color{blue}{\sqrt{3 \cdot \sqrt{\frac{0.012345679012345678}{x}}} \cdot \sqrt{3 \cdot \sqrt{\frac{0.012345679012345678}{x}}}} \]
      2. sqrt-unprod77.9%

        \[\leadsto \color{blue}{\sqrt{\left(3 \cdot \sqrt{\frac{0.012345679012345678}{x}}\right) \cdot \left(3 \cdot \sqrt{\frac{0.012345679012345678}{x}}\right)}} \]
      3. *-commutative77.9%

        \[\leadsto \sqrt{\color{blue}{\left(\sqrt{\frac{0.012345679012345678}{x}} \cdot 3\right)} \cdot \left(3 \cdot \sqrt{\frac{0.012345679012345678}{x}}\right)} \]
      4. *-commutative77.9%

        \[\leadsto \sqrt{\left(\sqrt{\frac{0.012345679012345678}{x}} \cdot 3\right) \cdot \color{blue}{\left(\sqrt{\frac{0.012345679012345678}{x}} \cdot 3\right)}} \]
      5. swap-sqr77.8%

        \[\leadsto \sqrt{\color{blue}{\left(\sqrt{\frac{0.012345679012345678}{x}} \cdot \sqrt{\frac{0.012345679012345678}{x}}\right) \cdot \left(3 \cdot 3\right)}} \]
      6. add-sqr-sqrt78.0%

        \[\leadsto \sqrt{\color{blue}{\frac{0.012345679012345678}{x}} \cdot \left(3 \cdot 3\right)} \]
      7. metadata-eval78.0%

        \[\leadsto \sqrt{\frac{0.012345679012345678}{x} \cdot \color{blue}{9}} \]
    9. Applied egg-rr78.0%

      \[\leadsto \color{blue}{\sqrt{\frac{0.012345679012345678}{x} \cdot 9}} \]
    10. Step-by-step derivation
      1. associate-*l/78.0%

        \[\leadsto \sqrt{\color{blue}{\frac{0.012345679012345678 \cdot 9}{x}}} \]
      2. metadata-eval78.0%

        \[\leadsto \sqrt{\frac{\color{blue}{0.1111111111111111}}{x}} \]
    11. Simplified78.0%

      \[\leadsto \color{blue}{\sqrt{\frac{0.1111111111111111}{x}}} \]

    if 0.112000000000000002 < x

    1. Initial program 99.5%

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

        \[\leadsto \color{blue}{\left(3 \cdot \sqrt{x}\right) \cdot \left(y + \frac{1}{x \cdot 9}\right) - \left(3 \cdot \sqrt{x}\right) \cdot 1} \]
      2. *-rgt-identity99.5%

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

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

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

        \[\leadsto \color{blue}{\left(3 \cdot \left(y + \frac{1}{x \cdot 9}\right)\right) \cdot \sqrt{x}} - 3 \cdot \sqrt{x} \]
      6. distribute-rgt-out--99.6%

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

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

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

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

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

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

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

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

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

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

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

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

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

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

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \mathsf{fma}\left(3, y, -3\right)\right)} \]
    4. Taylor expanded in y around 0 51.9%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(0.3333333333333333 \cdot \frac{1}{x} - 3\right)} \]
    5. Step-by-step derivation
      1. sub-neg51.9%

        \[\leadsto \sqrt{x} \cdot \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{x} + \left(-3\right)\right)} \]
      2. associate-*r/51.9%

        \[\leadsto \sqrt{x} \cdot \left(\color{blue}{\frac{0.3333333333333333 \cdot 1}{x}} + \left(-3\right)\right) \]
      3. metadata-eval51.9%

        \[\leadsto \sqrt{x} \cdot \left(\frac{\color{blue}{0.3333333333333333}}{x} + \left(-3\right)\right) \]
      4. metadata-eval51.9%

        \[\leadsto \sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + \color{blue}{-3}\right) \]
    6. Simplified51.9%

      \[\leadsto \color{blue}{\sqrt{x} \cdot \left(\frac{0.3333333333333333}{x} + -3\right)} \]
    7. Taylor expanded in x around inf 50.7%

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

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq 0.112:\\ \;\;\;\;\sqrt{\frac{0.1111111111111111}{x}}\\ \mathbf{else}:\\ \;\;\;\;\sqrt{x} \cdot -3\\ \end{array} \]

Alternative 13: 37.7% accurate, 1.1× speedup?

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

\\
\sqrt{\frac{0.1111111111111111}{x}}
\end{array}
Derivation
  1. Initial program 99.3%

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

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

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

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

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

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

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

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

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

    \[\leadsto \color{blue}{3 \cdot \left(\sqrt{x} \cdot \left(\frac{0.1111111111111111}{x} + \left(y + -1\right)\right)\right)} \]
  4. Applied egg-rr31.2%

    \[\leadsto 3 \cdot \color{blue}{\sqrt{x \cdot {\left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)}^{2}}} \]
  5. Step-by-step derivation
    1. *-commutative31.2%

      \[\leadsto 3 \cdot \sqrt{\color{blue}{{\left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)}^{2} \cdot x}} \]
  6. Simplified31.2%

    \[\leadsto 3 \cdot \color{blue}{\sqrt{{\left(y + \left(\frac{0.1111111111111111}{x} + -1\right)\right)}^{2} \cdot x}} \]
  7. Taylor expanded in x around 0 39.6%

    \[\leadsto 3 \cdot \sqrt{\color{blue}{\frac{0.012345679012345678}{x}}} \]
  8. Step-by-step derivation
    1. add-sqr-sqrt39.4%

      \[\leadsto \color{blue}{\sqrt{3 \cdot \sqrt{\frac{0.012345679012345678}{x}}} \cdot \sqrt{3 \cdot \sqrt{\frac{0.012345679012345678}{x}}}} \]
    2. sqrt-unprod39.6%

      \[\leadsto \color{blue}{\sqrt{\left(3 \cdot \sqrt{\frac{0.012345679012345678}{x}}\right) \cdot \left(3 \cdot \sqrt{\frac{0.012345679012345678}{x}}\right)}} \]
    3. *-commutative39.6%

      \[\leadsto \sqrt{\color{blue}{\left(\sqrt{\frac{0.012345679012345678}{x}} \cdot 3\right)} \cdot \left(3 \cdot \sqrt{\frac{0.012345679012345678}{x}}\right)} \]
    4. *-commutative39.6%

      \[\leadsto \sqrt{\left(\sqrt{\frac{0.012345679012345678}{x}} \cdot 3\right) \cdot \color{blue}{\left(\sqrt{\frac{0.012345679012345678}{x}} \cdot 3\right)}} \]
    5. swap-sqr39.6%

      \[\leadsto \sqrt{\color{blue}{\left(\sqrt{\frac{0.012345679012345678}{x}} \cdot \sqrt{\frac{0.012345679012345678}{x}}\right) \cdot \left(3 \cdot 3\right)}} \]
    6. add-sqr-sqrt39.6%

      \[\leadsto \sqrt{\color{blue}{\frac{0.012345679012345678}{x}} \cdot \left(3 \cdot 3\right)} \]
    7. metadata-eval39.6%

      \[\leadsto \sqrt{\frac{0.012345679012345678}{x} \cdot \color{blue}{9}} \]
  9. Applied egg-rr39.6%

    \[\leadsto \color{blue}{\sqrt{\frac{0.012345679012345678}{x} \cdot 9}} \]
  10. Step-by-step derivation
    1. associate-*l/39.7%

      \[\leadsto \sqrt{\color{blue}{\frac{0.012345679012345678 \cdot 9}{x}}} \]
    2. metadata-eval39.7%

      \[\leadsto \sqrt{\frac{\color{blue}{0.1111111111111111}}{x}} \]
  11. Simplified39.7%

    \[\leadsto \color{blue}{\sqrt{\frac{0.1111111111111111}{x}}} \]
  12. Final simplification39.7%

    \[\leadsto \sqrt{\frac{0.1111111111111111}{x}} \]

Developer target: 99.4% accurate, 0.5× speedup?

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

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

Reproduce

?
herbie shell --seed 2023312 
(FPCore (x y)
  :name "Numeric.SpecFunctions:incompleteGamma from math-functions-0.1.5.2, B"
  :precision binary64

  :herbie-target
  (* 3.0 (+ (* y (sqrt x)) (* (- (/ 1.0 (* x 9.0)) 1.0) (sqrt x))))

  (* (* 3.0 (sqrt x)) (- (+ y (/ 1.0 (* x 9.0))) 1.0)))