math.cube on complex, imaginary part

Percentage Accurate: 82.4% → 99.8%
Time: 10.6s
Alternatives: 11
Speedup: 1.2×

Specification

?
\[\begin{array}{l} \\ \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \end{array} \]
(FPCore (x.re x.im)
 :precision binary64
 (+
  (* (- (* x.re x.re) (* x.im x.im)) x.im)
  (* (+ (* x.re x.im) (* x.im x.re)) x.re)))
double code(double x_46_re, double x_46_im) {
	return (((x_46_re * x_46_re) - (x_46_im * x_46_im)) * x_46_im) + (((x_46_re * x_46_im) + (x_46_im * x_46_re)) * x_46_re);
}
real(8) function code(x_46re, x_46im)
    real(8), intent (in) :: x_46re
    real(8), intent (in) :: x_46im
    code = (((x_46re * x_46re) - (x_46im * x_46im)) * x_46im) + (((x_46re * x_46im) + (x_46im * x_46re)) * x_46re)
end function
public static double code(double x_46_re, double x_46_im) {
	return (((x_46_re * x_46_re) - (x_46_im * x_46_im)) * x_46_im) + (((x_46_re * x_46_im) + (x_46_im * x_46_re)) * x_46_re);
}
def code(x_46_re, x_46_im):
	return (((x_46_re * x_46_re) - (x_46_im * x_46_im)) * x_46_im) + (((x_46_re * x_46_im) + (x_46_im * x_46_re)) * x_46_re)
function code(x_46_re, x_46_im)
	return Float64(Float64(Float64(Float64(x_46_re * x_46_re) - Float64(x_46_im * x_46_im)) * x_46_im) + Float64(Float64(Float64(x_46_re * x_46_im) + Float64(x_46_im * x_46_re)) * x_46_re))
end
function tmp = code(x_46_re, x_46_im)
	tmp = (((x_46_re * x_46_re) - (x_46_im * x_46_im)) * x_46_im) + (((x_46_re * x_46_im) + (x_46_im * x_46_re)) * x_46_re);
end
code[x$46$re_, x$46$im_] := N[(N[(N[(N[(x$46$re * x$46$re), $MachinePrecision] - N[(x$46$im * x$46$im), $MachinePrecision]), $MachinePrecision] * x$46$im), $MachinePrecision] + N[(N[(N[(x$46$re * x$46$im), $MachinePrecision] + N[(x$46$im * x$46$re), $MachinePrecision]), $MachinePrecision] * x$46$re), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re
\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 11 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: 82.4% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \end{array} \]
(FPCore (x.re x.im)
 :precision binary64
 (+
  (* (- (* x.re x.re) (* x.im x.im)) x.im)
  (* (+ (* x.re x.im) (* x.im x.re)) x.re)))
double code(double x_46_re, double x_46_im) {
	return (((x_46_re * x_46_re) - (x_46_im * x_46_im)) * x_46_im) + (((x_46_re * x_46_im) + (x_46_im * x_46_re)) * x_46_re);
}
real(8) function code(x_46re, x_46im)
    real(8), intent (in) :: x_46re
    real(8), intent (in) :: x_46im
    code = (((x_46re * x_46re) - (x_46im * x_46im)) * x_46im) + (((x_46re * x_46im) + (x_46im * x_46re)) * x_46re)
end function
public static double code(double x_46_re, double x_46_im) {
	return (((x_46_re * x_46_re) - (x_46_im * x_46_im)) * x_46_im) + (((x_46_re * x_46_im) + (x_46_im * x_46_re)) * x_46_re);
}
def code(x_46_re, x_46_im):
	return (((x_46_re * x_46_re) - (x_46_im * x_46_im)) * x_46_im) + (((x_46_re * x_46_im) + (x_46_im * x_46_re)) * x_46_re)
function code(x_46_re, x_46_im)
	return Float64(Float64(Float64(Float64(x_46_re * x_46_re) - Float64(x_46_im * x_46_im)) * x_46_im) + Float64(Float64(Float64(x_46_re * x_46_im) + Float64(x_46_im * x_46_re)) * x_46_re))
end
function tmp = code(x_46_re, x_46_im)
	tmp = (((x_46_re * x_46_re) - (x_46_im * x_46_im)) * x_46_im) + (((x_46_re * x_46_im) + (x_46_im * x_46_re)) * x_46_re);
end
code[x$46$re_, x$46$im_] := N[(N[(N[(N[(x$46$re * x$46$re), $MachinePrecision] - N[(x$46$im * x$46$im), $MachinePrecision]), $MachinePrecision] * x$46$im), $MachinePrecision] + N[(N[(N[(x$46$re * x$46$im), $MachinePrecision] + N[(x$46$im * x$46$re), $MachinePrecision]), $MachinePrecision] * x$46$re), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re
\end{array}

Alternative 1: 99.8% accurate, 0.2× speedup?

\[\begin{array}{l} x.im\_m = \left|x.im\right| \\ x.im\_s = \mathsf{copysign}\left(1, x.im\right) \\ x.im\_s \cdot \begin{array}{l} \mathbf{if}\;x.im\_m \leq 1.2 \cdot 10^{+98}:\\ \;\;\;\;\left(x.re \cdot \left(x.im\_m \cdot x.re\right)\right) \cdot 3 - {x.im\_m}^{3}\\ \mathbf{else}:\\ \;\;\;\;x.im\_m \cdot \left(\left(x.re - x.im\_m\right) \cdot \left(x.im\_m + x.re\right)\right) + -3\\ \end{array} \end{array} \]
x.im\_m = (fabs.f64 x.im)
x.im\_s = (copysign.f64 #s(literal 1 binary64) x.im)
(FPCore (x.im_s x.re x.im_m)
 :precision binary64
 (*
  x.im_s
  (if (<= x.im_m 1.2e+98)
    (- (* (* x.re (* x.im_m x.re)) 3.0) (pow x.im_m 3.0))
    (+ (* x.im_m (* (- x.re x.im_m) (+ x.im_m x.re))) -3.0))))
x.im\_m = fabs(x_46_im);
x.im\_s = copysign(1.0, x_46_im);
double code(double x_46_im_s, double x_46_re, double x_46_im_m) {
	double tmp;
	if (x_46_im_m <= 1.2e+98) {
		tmp = ((x_46_re * (x_46_im_m * x_46_re)) * 3.0) - pow(x_46_im_m, 3.0);
	} else {
		tmp = (x_46_im_m * ((x_46_re - x_46_im_m) * (x_46_im_m + x_46_re))) + -3.0;
	}
	return x_46_im_s * tmp;
}
x.im\_m = abs(x_46im)
x.im\_s = copysign(1.0d0, x_46im)
real(8) function code(x_46im_s, x_46re, x_46im_m)
    real(8), intent (in) :: x_46im_s
    real(8), intent (in) :: x_46re
    real(8), intent (in) :: x_46im_m
    real(8) :: tmp
    if (x_46im_m <= 1.2d+98) then
        tmp = ((x_46re * (x_46im_m * x_46re)) * 3.0d0) - (x_46im_m ** 3.0d0)
    else
        tmp = (x_46im_m * ((x_46re - x_46im_m) * (x_46im_m + x_46re))) + (-3.0d0)
    end if
    code = x_46im_s * tmp
end function
x.im\_m = Math.abs(x_46_im);
x.im\_s = Math.copySign(1.0, x_46_im);
public static double code(double x_46_im_s, double x_46_re, double x_46_im_m) {
	double tmp;
	if (x_46_im_m <= 1.2e+98) {
		tmp = ((x_46_re * (x_46_im_m * x_46_re)) * 3.0) - Math.pow(x_46_im_m, 3.0);
	} else {
		tmp = (x_46_im_m * ((x_46_re - x_46_im_m) * (x_46_im_m + x_46_re))) + -3.0;
	}
	return x_46_im_s * tmp;
}
x.im\_m = math.fabs(x_46_im)
x.im\_s = math.copysign(1.0, x_46_im)
def code(x_46_im_s, x_46_re, x_46_im_m):
	tmp = 0
	if x_46_im_m <= 1.2e+98:
		tmp = ((x_46_re * (x_46_im_m * x_46_re)) * 3.0) - math.pow(x_46_im_m, 3.0)
	else:
		tmp = (x_46_im_m * ((x_46_re - x_46_im_m) * (x_46_im_m + x_46_re))) + -3.0
	return x_46_im_s * tmp
x.im\_m = abs(x_46_im)
x.im\_s = copysign(1.0, x_46_im)
function code(x_46_im_s, x_46_re, x_46_im_m)
	tmp = 0.0
	if (x_46_im_m <= 1.2e+98)
		tmp = Float64(Float64(Float64(x_46_re * Float64(x_46_im_m * x_46_re)) * 3.0) - (x_46_im_m ^ 3.0));
	else
		tmp = Float64(Float64(x_46_im_m * Float64(Float64(x_46_re - x_46_im_m) * Float64(x_46_im_m + x_46_re))) + -3.0);
	end
	return Float64(x_46_im_s * tmp)
end
x.im\_m = abs(x_46_im);
x.im\_s = sign(x_46_im) * abs(1.0);
function tmp_2 = code(x_46_im_s, x_46_re, x_46_im_m)
	tmp = 0.0;
	if (x_46_im_m <= 1.2e+98)
		tmp = ((x_46_re * (x_46_im_m * x_46_re)) * 3.0) - (x_46_im_m ^ 3.0);
	else
		tmp = (x_46_im_m * ((x_46_re - x_46_im_m) * (x_46_im_m + x_46_re))) + -3.0;
	end
	tmp_2 = x_46_im_s * tmp;
end
x.im\_m = N[Abs[x$46$im], $MachinePrecision]
x.im\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[x$46$im]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
code[x$46$im$95$s_, x$46$re_, x$46$im$95$m_] := N[(x$46$im$95$s * If[LessEqual[x$46$im$95$m, 1.2e+98], N[(N[(N[(x$46$re * N[(x$46$im$95$m * x$46$re), $MachinePrecision]), $MachinePrecision] * 3.0), $MachinePrecision] - N[Power[x$46$im$95$m, 3.0], $MachinePrecision]), $MachinePrecision], N[(N[(x$46$im$95$m * N[(N[(x$46$re - x$46$im$95$m), $MachinePrecision] * N[(x$46$im$95$m + x$46$re), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + -3.0), $MachinePrecision]]), $MachinePrecision]
\begin{array}{l}
x.im\_m = \left|x.im\right|
\\
x.im\_s = \mathsf{copysign}\left(1, x.im\right)

\\
x.im\_s \cdot \begin{array}{l}
\mathbf{if}\;x.im\_m \leq 1.2 \cdot 10^{+98}:\\
\;\;\;\;\left(x.re \cdot \left(x.im\_m \cdot x.re\right)\right) \cdot 3 - {x.im\_m}^{3}\\

\mathbf{else}:\\
\;\;\;\;x.im\_m \cdot \left(\left(x.re - x.im\_m\right) \cdot \left(x.im\_m + x.re\right)\right) + -3\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x.im < 1.1999999999999999e98

    1. Initial program 82.1%

      \[\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    2. Simplified89.5%

      \[\leadsto \color{blue}{\left(x.re \cdot \left(x.re \cdot x.im\right)\right) \cdot 3 - {x.im}^{3}} \]
    3. Add Preprocessing

    if 1.1999999999999999e98 < x.im

    1. Initial program 62.8%

      \[\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    2. Add Preprocessing
    3. Taylor expanded in x.re around 0 62.8%

      \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.im + \color{blue}{2 \cdot \left(x.im \cdot {x.re}^{2}\right)} \]
    4. Simplified79.1%

      \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.im + \color{blue}{-3} \]
    5. Step-by-step derivation
      1. difference-of-squares100.0%

        \[\leadsto \color{blue}{\left(\left(x.re + x.im\right) \cdot \left(x.re - x.im\right)\right)} \cdot x.im + -3 \]
      2. *-commutative100.0%

        \[\leadsto \color{blue}{\left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right)} \cdot x.im + -3 \]
    6. Applied egg-rr100.0%

      \[\leadsto \color{blue}{\left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right)} \cdot x.im + -3 \]
  3. Recombined 2 regimes into one program.
  4. Final simplification91.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x.im \leq 1.2 \cdot 10^{+98}:\\ \;\;\;\;\left(x.re \cdot \left(x.im \cdot x.re\right)\right) \cdot 3 - {x.im}^{3}\\ \mathbf{else}:\\ \;\;\;\;x.im \cdot \left(\left(x.re - x.im\right) \cdot \left(x.im + x.re\right)\right) + -3\\ \end{array} \]
  5. Add Preprocessing

Alternative 2: 99.8% accurate, 0.2× speedup?

\[\begin{array}{l} x.im\_m = \left|x.im\right| \\ x.im\_s = \mathsf{copysign}\left(1, x.im\right) \\ x.im\_s \cdot \begin{array}{l} \mathbf{if}\;x.im\_m \leq 1.2 \cdot 10^{+98}:\\ \;\;\;\;x.re \cdot \left(3 \cdot \left(x.im\_m \cdot x.re\right)\right) - {x.im\_m}^{3}\\ \mathbf{else}:\\ \;\;\;\;x.im\_m \cdot \left(\left(x.re - x.im\_m\right) \cdot \left(x.im\_m + x.re\right)\right) + -3\\ \end{array} \end{array} \]
x.im\_m = (fabs.f64 x.im)
x.im\_s = (copysign.f64 #s(literal 1 binary64) x.im)
(FPCore (x.im_s x.re x.im_m)
 :precision binary64
 (*
  x.im_s
  (if (<= x.im_m 1.2e+98)
    (- (* x.re (* 3.0 (* x.im_m x.re))) (pow x.im_m 3.0))
    (+ (* x.im_m (* (- x.re x.im_m) (+ x.im_m x.re))) -3.0))))
x.im\_m = fabs(x_46_im);
x.im\_s = copysign(1.0, x_46_im);
double code(double x_46_im_s, double x_46_re, double x_46_im_m) {
	double tmp;
	if (x_46_im_m <= 1.2e+98) {
		tmp = (x_46_re * (3.0 * (x_46_im_m * x_46_re))) - pow(x_46_im_m, 3.0);
	} else {
		tmp = (x_46_im_m * ((x_46_re - x_46_im_m) * (x_46_im_m + x_46_re))) + -3.0;
	}
	return x_46_im_s * tmp;
}
x.im\_m = abs(x_46im)
x.im\_s = copysign(1.0d0, x_46im)
real(8) function code(x_46im_s, x_46re, x_46im_m)
    real(8), intent (in) :: x_46im_s
    real(8), intent (in) :: x_46re
    real(8), intent (in) :: x_46im_m
    real(8) :: tmp
    if (x_46im_m <= 1.2d+98) then
        tmp = (x_46re * (3.0d0 * (x_46im_m * x_46re))) - (x_46im_m ** 3.0d0)
    else
        tmp = (x_46im_m * ((x_46re - x_46im_m) * (x_46im_m + x_46re))) + (-3.0d0)
    end if
    code = x_46im_s * tmp
end function
x.im\_m = Math.abs(x_46_im);
x.im\_s = Math.copySign(1.0, x_46_im);
public static double code(double x_46_im_s, double x_46_re, double x_46_im_m) {
	double tmp;
	if (x_46_im_m <= 1.2e+98) {
		tmp = (x_46_re * (3.0 * (x_46_im_m * x_46_re))) - Math.pow(x_46_im_m, 3.0);
	} else {
		tmp = (x_46_im_m * ((x_46_re - x_46_im_m) * (x_46_im_m + x_46_re))) + -3.0;
	}
	return x_46_im_s * tmp;
}
x.im\_m = math.fabs(x_46_im)
x.im\_s = math.copysign(1.0, x_46_im)
def code(x_46_im_s, x_46_re, x_46_im_m):
	tmp = 0
	if x_46_im_m <= 1.2e+98:
		tmp = (x_46_re * (3.0 * (x_46_im_m * x_46_re))) - math.pow(x_46_im_m, 3.0)
	else:
		tmp = (x_46_im_m * ((x_46_re - x_46_im_m) * (x_46_im_m + x_46_re))) + -3.0
	return x_46_im_s * tmp
x.im\_m = abs(x_46_im)
x.im\_s = copysign(1.0, x_46_im)
function code(x_46_im_s, x_46_re, x_46_im_m)
	tmp = 0.0
	if (x_46_im_m <= 1.2e+98)
		tmp = Float64(Float64(x_46_re * Float64(3.0 * Float64(x_46_im_m * x_46_re))) - (x_46_im_m ^ 3.0));
	else
		tmp = Float64(Float64(x_46_im_m * Float64(Float64(x_46_re - x_46_im_m) * Float64(x_46_im_m + x_46_re))) + -3.0);
	end
	return Float64(x_46_im_s * tmp)
end
x.im\_m = abs(x_46_im);
x.im\_s = sign(x_46_im) * abs(1.0);
function tmp_2 = code(x_46_im_s, x_46_re, x_46_im_m)
	tmp = 0.0;
	if (x_46_im_m <= 1.2e+98)
		tmp = (x_46_re * (3.0 * (x_46_im_m * x_46_re))) - (x_46_im_m ^ 3.0);
	else
		tmp = (x_46_im_m * ((x_46_re - x_46_im_m) * (x_46_im_m + x_46_re))) + -3.0;
	end
	tmp_2 = x_46_im_s * tmp;
end
x.im\_m = N[Abs[x$46$im], $MachinePrecision]
x.im\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[x$46$im]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
code[x$46$im$95$s_, x$46$re_, x$46$im$95$m_] := N[(x$46$im$95$s * If[LessEqual[x$46$im$95$m, 1.2e+98], N[(N[(x$46$re * N[(3.0 * N[(x$46$im$95$m * x$46$re), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - N[Power[x$46$im$95$m, 3.0], $MachinePrecision]), $MachinePrecision], N[(N[(x$46$im$95$m * N[(N[(x$46$re - x$46$im$95$m), $MachinePrecision] * N[(x$46$im$95$m + x$46$re), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + -3.0), $MachinePrecision]]), $MachinePrecision]
\begin{array}{l}
x.im\_m = \left|x.im\right|
\\
x.im\_s = \mathsf{copysign}\left(1, x.im\right)

\\
x.im\_s \cdot \begin{array}{l}
\mathbf{if}\;x.im\_m \leq 1.2 \cdot 10^{+98}:\\
\;\;\;\;x.re \cdot \left(3 \cdot \left(x.im\_m \cdot x.re\right)\right) - {x.im\_m}^{3}\\

\mathbf{else}:\\
\;\;\;\;x.im\_m \cdot \left(\left(x.re - x.im\_m\right) \cdot \left(x.im\_m + x.re\right)\right) + -3\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x.im < 1.1999999999999999e98

    1. Initial program 82.1%

      \[\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    2. Simplified89.5%

      \[\leadsto \color{blue}{x.re \cdot \left(x.re \cdot \left(x.im \cdot 3\right)\right) - {x.im}^{3}} \]
    3. Add Preprocessing
    4. Taylor expanded in x.re around 0 89.5%

      \[\leadsto x.re \cdot \color{blue}{\left(3 \cdot \left(x.im \cdot x.re\right)\right)} - {x.im}^{3} \]

    if 1.1999999999999999e98 < x.im

    1. Initial program 62.8%

      \[\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    2. Add Preprocessing
    3. Taylor expanded in x.re around 0 62.8%

      \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.im + \color{blue}{2 \cdot \left(x.im \cdot {x.re}^{2}\right)} \]
    4. Simplified79.1%

      \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.im + \color{blue}{-3} \]
    5. Step-by-step derivation
      1. difference-of-squares100.0%

        \[\leadsto \color{blue}{\left(\left(x.re + x.im\right) \cdot \left(x.re - x.im\right)\right)} \cdot x.im + -3 \]
      2. *-commutative100.0%

        \[\leadsto \color{blue}{\left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right)} \cdot x.im + -3 \]
    6. Applied egg-rr100.0%

      \[\leadsto \color{blue}{\left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right)} \cdot x.im + -3 \]
  3. Recombined 2 regimes into one program.
  4. Final simplification91.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x.im \leq 1.2 \cdot 10^{+98}:\\ \;\;\;\;x.re \cdot \left(3 \cdot \left(x.im \cdot x.re\right)\right) - {x.im}^{3}\\ \mathbf{else}:\\ \;\;\;\;x.im \cdot \left(\left(x.re - x.im\right) \cdot \left(x.im + x.re\right)\right) + -3\\ \end{array} \]
  5. Add Preprocessing

Alternative 3: 99.8% accurate, 0.3× speedup?

\[\begin{array}{l} x.im\_m = \left|x.im\right| \\ x.im\_s = \mathsf{copysign}\left(1, x.im\right) \\ \begin{array}{l} t_0 := x.im\_m \cdot \left(\left(x.re - x.im\_m\right) \cdot \left(x.im\_m + x.re\right)\right)\\ t_1 := x.im\_m \cdot \left(x.re \cdot x.re - x.im\_m \cdot x.im\_m\right) + x.re \cdot \left(x.im\_m \cdot x.re + x.im\_m \cdot x.re\right)\\ t_2 := x.re \cdot \left(\left(x.im\_m \cdot x.re\right) \cdot 2\right)\\ x.im\_s \cdot \begin{array}{l} \mathbf{if}\;t\_1 \leq 5 \cdot 10^{+305}:\\ \;\;\;\;t\_0 + t\_2\\ \mathbf{elif}\;t\_1 \leq \infty:\\ \;\;\;\;t\_2 + \left(x.im\_m + x.re\right) \cdot \left(x.im\_m \cdot x.re\right)\\ \mathbf{else}:\\ \;\;\;\;t\_0 + -3\\ \end{array} \end{array} \end{array} \]
x.im\_m = (fabs.f64 x.im)
x.im\_s = (copysign.f64 #s(literal 1 binary64) x.im)
(FPCore (x.im_s x.re x.im_m)
 :precision binary64
 (let* ((t_0 (* x.im_m (* (- x.re x.im_m) (+ x.im_m x.re))))
        (t_1
         (+
          (* x.im_m (- (* x.re x.re) (* x.im_m x.im_m)))
          (* x.re (+ (* x.im_m x.re) (* x.im_m x.re)))))
        (t_2 (* x.re (* (* x.im_m x.re) 2.0))))
   (*
    x.im_s
    (if (<= t_1 5e+305)
      (+ t_0 t_2)
      (if (<= t_1 INFINITY)
        (+ t_2 (* (+ x.im_m x.re) (* x.im_m x.re)))
        (+ t_0 -3.0))))))
x.im\_m = fabs(x_46_im);
x.im\_s = copysign(1.0, x_46_im);
double code(double x_46_im_s, double x_46_re, double x_46_im_m) {
	double t_0 = x_46_im_m * ((x_46_re - x_46_im_m) * (x_46_im_m + x_46_re));
	double t_1 = (x_46_im_m * ((x_46_re * x_46_re) - (x_46_im_m * x_46_im_m))) + (x_46_re * ((x_46_im_m * x_46_re) + (x_46_im_m * x_46_re)));
	double t_2 = x_46_re * ((x_46_im_m * x_46_re) * 2.0);
	double tmp;
	if (t_1 <= 5e+305) {
		tmp = t_0 + t_2;
	} else if (t_1 <= ((double) INFINITY)) {
		tmp = t_2 + ((x_46_im_m + x_46_re) * (x_46_im_m * x_46_re));
	} else {
		tmp = t_0 + -3.0;
	}
	return x_46_im_s * tmp;
}
x.im\_m = Math.abs(x_46_im);
x.im\_s = Math.copySign(1.0, x_46_im);
public static double code(double x_46_im_s, double x_46_re, double x_46_im_m) {
	double t_0 = x_46_im_m * ((x_46_re - x_46_im_m) * (x_46_im_m + x_46_re));
	double t_1 = (x_46_im_m * ((x_46_re * x_46_re) - (x_46_im_m * x_46_im_m))) + (x_46_re * ((x_46_im_m * x_46_re) + (x_46_im_m * x_46_re)));
	double t_2 = x_46_re * ((x_46_im_m * x_46_re) * 2.0);
	double tmp;
	if (t_1 <= 5e+305) {
		tmp = t_0 + t_2;
	} else if (t_1 <= Double.POSITIVE_INFINITY) {
		tmp = t_2 + ((x_46_im_m + x_46_re) * (x_46_im_m * x_46_re));
	} else {
		tmp = t_0 + -3.0;
	}
	return x_46_im_s * tmp;
}
x.im\_m = math.fabs(x_46_im)
x.im\_s = math.copysign(1.0, x_46_im)
def code(x_46_im_s, x_46_re, x_46_im_m):
	t_0 = x_46_im_m * ((x_46_re - x_46_im_m) * (x_46_im_m + x_46_re))
	t_1 = (x_46_im_m * ((x_46_re * x_46_re) - (x_46_im_m * x_46_im_m))) + (x_46_re * ((x_46_im_m * x_46_re) + (x_46_im_m * x_46_re)))
	t_2 = x_46_re * ((x_46_im_m * x_46_re) * 2.0)
	tmp = 0
	if t_1 <= 5e+305:
		tmp = t_0 + t_2
	elif t_1 <= math.inf:
		tmp = t_2 + ((x_46_im_m + x_46_re) * (x_46_im_m * x_46_re))
	else:
		tmp = t_0 + -3.0
	return x_46_im_s * tmp
x.im\_m = abs(x_46_im)
x.im\_s = copysign(1.0, x_46_im)
function code(x_46_im_s, x_46_re, x_46_im_m)
	t_0 = Float64(x_46_im_m * Float64(Float64(x_46_re - x_46_im_m) * Float64(x_46_im_m + x_46_re)))
	t_1 = Float64(Float64(x_46_im_m * Float64(Float64(x_46_re * x_46_re) - Float64(x_46_im_m * x_46_im_m))) + Float64(x_46_re * Float64(Float64(x_46_im_m * x_46_re) + Float64(x_46_im_m * x_46_re))))
	t_2 = Float64(x_46_re * Float64(Float64(x_46_im_m * x_46_re) * 2.0))
	tmp = 0.0
	if (t_1 <= 5e+305)
		tmp = Float64(t_0 + t_2);
	elseif (t_1 <= Inf)
		tmp = Float64(t_2 + Float64(Float64(x_46_im_m + x_46_re) * Float64(x_46_im_m * x_46_re)));
	else
		tmp = Float64(t_0 + -3.0);
	end
	return Float64(x_46_im_s * tmp)
end
x.im\_m = abs(x_46_im);
x.im\_s = sign(x_46_im) * abs(1.0);
function tmp_2 = code(x_46_im_s, x_46_re, x_46_im_m)
	t_0 = x_46_im_m * ((x_46_re - x_46_im_m) * (x_46_im_m + x_46_re));
	t_1 = (x_46_im_m * ((x_46_re * x_46_re) - (x_46_im_m * x_46_im_m))) + (x_46_re * ((x_46_im_m * x_46_re) + (x_46_im_m * x_46_re)));
	t_2 = x_46_re * ((x_46_im_m * x_46_re) * 2.0);
	tmp = 0.0;
	if (t_1 <= 5e+305)
		tmp = t_0 + t_2;
	elseif (t_1 <= Inf)
		tmp = t_2 + ((x_46_im_m + x_46_re) * (x_46_im_m * x_46_re));
	else
		tmp = t_0 + -3.0;
	end
	tmp_2 = x_46_im_s * tmp;
end
x.im\_m = N[Abs[x$46$im], $MachinePrecision]
x.im\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[x$46$im]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
code[x$46$im$95$s_, x$46$re_, x$46$im$95$m_] := Block[{t$95$0 = N[(x$46$im$95$m * N[(N[(x$46$re - x$46$im$95$m), $MachinePrecision] * N[(x$46$im$95$m + x$46$re), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$1 = N[(N[(x$46$im$95$m * N[(N[(x$46$re * x$46$re), $MachinePrecision] - N[(x$46$im$95$m * x$46$im$95$m), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(x$46$re * N[(N[(x$46$im$95$m * x$46$re), $MachinePrecision] + N[(x$46$im$95$m * x$46$re), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(x$46$re * N[(N[(x$46$im$95$m * x$46$re), $MachinePrecision] * 2.0), $MachinePrecision]), $MachinePrecision]}, N[(x$46$im$95$s * If[LessEqual[t$95$1, 5e+305], N[(t$95$0 + t$95$2), $MachinePrecision], If[LessEqual[t$95$1, Infinity], N[(t$95$2 + N[(N[(x$46$im$95$m + x$46$re), $MachinePrecision] * N[(x$46$im$95$m * x$46$re), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(t$95$0 + -3.0), $MachinePrecision]]]), $MachinePrecision]]]]
\begin{array}{l}
x.im\_m = \left|x.im\right|
\\
x.im\_s = \mathsf{copysign}\left(1, x.im\right)

\\
\begin{array}{l}
t_0 := x.im\_m \cdot \left(\left(x.re - x.im\_m\right) \cdot \left(x.im\_m + x.re\right)\right)\\
t_1 := x.im\_m \cdot \left(x.re \cdot x.re - x.im\_m \cdot x.im\_m\right) + x.re \cdot \left(x.im\_m \cdot x.re + x.im\_m \cdot x.re\right)\\
t_2 := x.re \cdot \left(\left(x.im\_m \cdot x.re\right) \cdot 2\right)\\
x.im\_s \cdot \begin{array}{l}
\mathbf{if}\;t\_1 \leq 5 \cdot 10^{+305}:\\
\;\;\;\;t\_0 + t\_2\\

\mathbf{elif}\;t\_1 \leq \infty:\\
\;\;\;\;t\_2 + \left(x.im\_m + x.re\right) \cdot \left(x.im\_m \cdot x.re\right)\\

\mathbf{else}:\\
\;\;\;\;t\_0 + -3\\


\end{array}
\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if (+.f64 (*.f64 (-.f64 (*.f64 x.re x.re) (*.f64 x.im x.im)) x.im) (*.f64 (+.f64 (*.f64 x.re x.im) (*.f64 x.im x.re)) x.re)) < 5.00000000000000009e305

    1. Initial program 95.0%

      \[\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    2. Add Preprocessing
    3. Step-by-step derivation
      1. difference-of-squares37.2%

        \[\leadsto \color{blue}{\left(\left(x.re + x.im\right) \cdot \left(x.re - x.im\right)\right)} \cdot x.im + -3 \]
      2. *-commutative37.2%

        \[\leadsto \color{blue}{\left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right)} \cdot x.im + -3 \]
    4. Applied egg-rr95.0%

      \[\leadsto \color{blue}{\left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right)} \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    5. Step-by-step derivation
      1. *-commutative95.0%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + \left(x.re \cdot x.im + \color{blue}{x.re \cdot x.im}\right) \cdot x.re \]
      2. count-295.0%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + \color{blue}{\left(2 \cdot \left(x.re \cdot x.im\right)\right)} \cdot x.re \]
      3. *-commutative95.0%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + \color{blue}{\left(\left(x.re \cdot x.im\right) \cdot 2\right)} \cdot x.re \]
    6. Applied egg-rr95.0%

      \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + \color{blue}{\left(\left(x.re \cdot x.im\right) \cdot 2\right)} \cdot x.re \]

    if 5.00000000000000009e305 < (+.f64 (*.f64 (-.f64 (*.f64 x.re x.re) (*.f64 x.im x.im)) x.im) (*.f64 (+.f64 (*.f64 x.re x.im) (*.f64 x.im x.re)) x.re)) < +inf.0

    1. Initial program 77.3%

      \[\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    2. Add Preprocessing
    3. Step-by-step derivation
      1. difference-of-squares77.3%

        \[\leadsto \color{blue}{\left(\left(x.re + x.im\right) \cdot \left(x.re - x.im\right)\right)} \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    4. Applied egg-rr77.3%

      \[\leadsto \color{blue}{\left(\left(x.re + x.im\right) \cdot \left(x.re - x.im\right)\right)} \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    5. Simplified38.3%

      \[\leadsto \color{blue}{\left(\left(x.im + x.re\right) \cdot \left(x.re + -3\right)\right)} \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    6. Step-by-step derivation
      1. pow138.3%

        \[\leadsto \color{blue}{{\left(\left(\left(x.im + x.re\right) \cdot \left(x.re + -3\right)\right) \cdot x.im\right)}^{1}} + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
      2. associate-*l*60.8%

        \[\leadsto {\color{blue}{\left(\left(x.im + x.re\right) \cdot \left(\left(x.re + -3\right) \cdot x.im\right)\right)}}^{1} + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
      3. *-commutative60.8%

        \[\leadsto {\left(\left(x.im + x.re\right) \cdot \color{blue}{\left(x.im \cdot \left(x.re + -3\right)\right)}\right)}^{1} + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    7. Applied egg-rr60.8%

      \[\leadsto \color{blue}{{\left(\left(x.im + x.re\right) \cdot \left(x.im \cdot \left(x.re + -3\right)\right)\right)}^{1}} + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    8. Simplified60.8%

      \[\leadsto \color{blue}{\left(x.im + x.re\right) \cdot \left(x.im \cdot \left(x.re + -3\right)\right)} + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    9. Taylor expanded in x.re around inf 66.5%

      \[\leadsto \left(x.im + x.re\right) \cdot \color{blue}{\left(x.im \cdot x.re\right)} + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    10. Step-by-step derivation
      1. *-commutative77.3%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + \left(x.re \cdot x.im + \color{blue}{x.re \cdot x.im}\right) \cdot x.re \]
      2. count-277.3%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + \color{blue}{\left(2 \cdot \left(x.re \cdot x.im\right)\right)} \cdot x.re \]
      3. *-commutative77.3%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + \color{blue}{\left(\left(x.re \cdot x.im\right) \cdot 2\right)} \cdot x.re \]
    11. Applied egg-rr66.5%

      \[\leadsto \left(x.im + x.re\right) \cdot \left(x.im \cdot x.re\right) + \color{blue}{\left(\left(x.re \cdot x.im\right) \cdot 2\right)} \cdot x.re \]

    if +inf.0 < (+.f64 (*.f64 (-.f64 (*.f64 x.re x.re) (*.f64 x.im x.im)) x.im) (*.f64 (+.f64 (*.f64 x.re x.im) (*.f64 x.im x.re)) x.re))

    1. Initial program 0.0%

      \[\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    2. Add Preprocessing
    3. Taylor expanded in x.re around 0 0.0%

      \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.im + \color{blue}{2 \cdot \left(x.im \cdot {x.re}^{2}\right)} \]
    4. Simplified50.0%

      \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.im + \color{blue}{-3} \]
    5. Step-by-step derivation
      1. difference-of-squares100.0%

        \[\leadsto \color{blue}{\left(\left(x.re + x.im\right) \cdot \left(x.re - x.im\right)\right)} \cdot x.im + -3 \]
      2. *-commutative100.0%

        \[\leadsto \color{blue}{\left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right)} \cdot x.im + -3 \]
    6. Applied egg-rr100.0%

      \[\leadsto \color{blue}{\left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right)} \cdot x.im + -3 \]
  3. Recombined 3 regimes into one program.
  4. Final simplification91.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x.im \cdot \left(x.re \cdot x.re - x.im \cdot x.im\right) + x.re \cdot \left(x.im \cdot x.re + x.im \cdot x.re\right) \leq 5 \cdot 10^{+305}:\\ \;\;\;\;x.im \cdot \left(\left(x.re - x.im\right) \cdot \left(x.im + x.re\right)\right) + x.re \cdot \left(\left(x.im \cdot x.re\right) \cdot 2\right)\\ \mathbf{elif}\;x.im \cdot \left(x.re \cdot x.re - x.im \cdot x.im\right) + x.re \cdot \left(x.im \cdot x.re + x.im \cdot x.re\right) \leq \infty:\\ \;\;\;\;x.re \cdot \left(\left(x.im \cdot x.re\right) \cdot 2\right) + \left(x.im + x.re\right) \cdot \left(x.im \cdot x.re\right)\\ \mathbf{else}:\\ \;\;\;\;x.im \cdot \left(\left(x.re - x.im\right) \cdot \left(x.im + x.re\right)\right) + -3\\ \end{array} \]
  5. Add Preprocessing

Alternative 4: 91.9% accurate, 0.9× speedup?

\[\begin{array}{l} x.im\_m = \left|x.im\right| \\ x.im\_s = \mathsf{copysign}\left(1, x.im\right) \\ x.im\_s \cdot \begin{array}{l} \mathbf{if}\;x.im\_m \leq 1.2 \cdot 10^{-62}:\\ \;\;\;\;x.re \cdot \left(\left(x.im\_m \cdot x.re\right) \cdot 2\right) + \left(x.im\_m + x.re\right) \cdot \left(x.im\_m \cdot x.re\right)\\ \mathbf{else}:\\ \;\;\;\;x.im\_m \cdot \left(\left(x.re - x.im\_m\right) \cdot \left(x.im\_m + x.re\right)\right) - x.re\\ \end{array} \end{array} \]
x.im\_m = (fabs.f64 x.im)
x.im\_s = (copysign.f64 #s(literal 1 binary64) x.im)
(FPCore (x.im_s x.re x.im_m)
 :precision binary64
 (*
  x.im_s
  (if (<= x.im_m 1.2e-62)
    (+ (* x.re (* (* x.im_m x.re) 2.0)) (* (+ x.im_m x.re) (* x.im_m x.re)))
    (- (* x.im_m (* (- x.re x.im_m) (+ x.im_m x.re))) x.re))))
x.im\_m = fabs(x_46_im);
x.im\_s = copysign(1.0, x_46_im);
double code(double x_46_im_s, double x_46_re, double x_46_im_m) {
	double tmp;
	if (x_46_im_m <= 1.2e-62) {
		tmp = (x_46_re * ((x_46_im_m * x_46_re) * 2.0)) + ((x_46_im_m + x_46_re) * (x_46_im_m * x_46_re));
	} else {
		tmp = (x_46_im_m * ((x_46_re - x_46_im_m) * (x_46_im_m + x_46_re))) - x_46_re;
	}
	return x_46_im_s * tmp;
}
x.im\_m = abs(x_46im)
x.im\_s = copysign(1.0d0, x_46im)
real(8) function code(x_46im_s, x_46re, x_46im_m)
    real(8), intent (in) :: x_46im_s
    real(8), intent (in) :: x_46re
    real(8), intent (in) :: x_46im_m
    real(8) :: tmp
    if (x_46im_m <= 1.2d-62) then
        tmp = (x_46re * ((x_46im_m * x_46re) * 2.0d0)) + ((x_46im_m + x_46re) * (x_46im_m * x_46re))
    else
        tmp = (x_46im_m * ((x_46re - x_46im_m) * (x_46im_m + x_46re))) - x_46re
    end if
    code = x_46im_s * tmp
end function
x.im\_m = Math.abs(x_46_im);
x.im\_s = Math.copySign(1.0, x_46_im);
public static double code(double x_46_im_s, double x_46_re, double x_46_im_m) {
	double tmp;
	if (x_46_im_m <= 1.2e-62) {
		tmp = (x_46_re * ((x_46_im_m * x_46_re) * 2.0)) + ((x_46_im_m + x_46_re) * (x_46_im_m * x_46_re));
	} else {
		tmp = (x_46_im_m * ((x_46_re - x_46_im_m) * (x_46_im_m + x_46_re))) - x_46_re;
	}
	return x_46_im_s * tmp;
}
x.im\_m = math.fabs(x_46_im)
x.im\_s = math.copysign(1.0, x_46_im)
def code(x_46_im_s, x_46_re, x_46_im_m):
	tmp = 0
	if x_46_im_m <= 1.2e-62:
		tmp = (x_46_re * ((x_46_im_m * x_46_re) * 2.0)) + ((x_46_im_m + x_46_re) * (x_46_im_m * x_46_re))
	else:
		tmp = (x_46_im_m * ((x_46_re - x_46_im_m) * (x_46_im_m + x_46_re))) - x_46_re
	return x_46_im_s * tmp
x.im\_m = abs(x_46_im)
x.im\_s = copysign(1.0, x_46_im)
function code(x_46_im_s, x_46_re, x_46_im_m)
	tmp = 0.0
	if (x_46_im_m <= 1.2e-62)
		tmp = Float64(Float64(x_46_re * Float64(Float64(x_46_im_m * x_46_re) * 2.0)) + Float64(Float64(x_46_im_m + x_46_re) * Float64(x_46_im_m * x_46_re)));
	else
		tmp = Float64(Float64(x_46_im_m * Float64(Float64(x_46_re - x_46_im_m) * Float64(x_46_im_m + x_46_re))) - x_46_re);
	end
	return Float64(x_46_im_s * tmp)
end
x.im\_m = abs(x_46_im);
x.im\_s = sign(x_46_im) * abs(1.0);
function tmp_2 = code(x_46_im_s, x_46_re, x_46_im_m)
	tmp = 0.0;
	if (x_46_im_m <= 1.2e-62)
		tmp = (x_46_re * ((x_46_im_m * x_46_re) * 2.0)) + ((x_46_im_m + x_46_re) * (x_46_im_m * x_46_re));
	else
		tmp = (x_46_im_m * ((x_46_re - x_46_im_m) * (x_46_im_m + x_46_re))) - x_46_re;
	end
	tmp_2 = x_46_im_s * tmp;
end
x.im\_m = N[Abs[x$46$im], $MachinePrecision]
x.im\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[x$46$im]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
code[x$46$im$95$s_, x$46$re_, x$46$im$95$m_] := N[(x$46$im$95$s * If[LessEqual[x$46$im$95$m, 1.2e-62], N[(N[(x$46$re * N[(N[(x$46$im$95$m * x$46$re), $MachinePrecision] * 2.0), $MachinePrecision]), $MachinePrecision] + N[(N[(x$46$im$95$m + x$46$re), $MachinePrecision] * N[(x$46$im$95$m * x$46$re), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(x$46$im$95$m * N[(N[(x$46$re - x$46$im$95$m), $MachinePrecision] * N[(x$46$im$95$m + x$46$re), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - x$46$re), $MachinePrecision]]), $MachinePrecision]
\begin{array}{l}
x.im\_m = \left|x.im\right|
\\
x.im\_s = \mathsf{copysign}\left(1, x.im\right)

\\
x.im\_s \cdot \begin{array}{l}
\mathbf{if}\;x.im\_m \leq 1.2 \cdot 10^{-62}:\\
\;\;\;\;x.re \cdot \left(\left(x.im\_m \cdot x.re\right) \cdot 2\right) + \left(x.im\_m + x.re\right) \cdot \left(x.im\_m \cdot x.re\right)\\

\mathbf{else}:\\
\;\;\;\;x.im\_m \cdot \left(\left(x.re - x.im\_m\right) \cdot \left(x.im\_m + x.re\right)\right) - x.re\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x.im < 1.19999999999999992e-62

    1. Initial program 79.0%

      \[\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    2. Add Preprocessing
    3. Step-by-step derivation
      1. difference-of-squares80.1%

        \[\leadsto \color{blue}{\left(\left(x.re + x.im\right) \cdot \left(x.re - x.im\right)\right)} \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    4. Applied egg-rr80.1%

      \[\leadsto \color{blue}{\left(\left(x.re + x.im\right) \cdot \left(x.re - x.im\right)\right)} \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    5. Simplified41.0%

      \[\leadsto \color{blue}{\left(\left(x.im + x.re\right) \cdot \left(x.re + -3\right)\right)} \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    6. Step-by-step derivation
      1. pow141.0%

        \[\leadsto \color{blue}{{\left(\left(\left(x.im + x.re\right) \cdot \left(x.re + -3\right)\right) \cdot x.im\right)}^{1}} + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
      2. associate-*l*50.7%

        \[\leadsto {\color{blue}{\left(\left(x.im + x.re\right) \cdot \left(\left(x.re + -3\right) \cdot x.im\right)\right)}}^{1} + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
      3. *-commutative50.7%

        \[\leadsto {\left(\left(x.im + x.re\right) \cdot \color{blue}{\left(x.im \cdot \left(x.re + -3\right)\right)}\right)}^{1} + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    7. Applied egg-rr50.7%

      \[\leadsto \color{blue}{{\left(\left(x.im + x.re\right) \cdot \left(x.im \cdot \left(x.re + -3\right)\right)\right)}^{1}} + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    8. Simplified50.7%

      \[\leadsto \color{blue}{\left(x.im + x.re\right) \cdot \left(x.im \cdot \left(x.re + -3\right)\right)} + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    9. Taylor expanded in x.re around inf 70.0%

      \[\leadsto \left(x.im + x.re\right) \cdot \color{blue}{\left(x.im \cdot x.re\right)} + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    10. Step-by-step derivation
      1. *-commutative80.1%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + \left(x.re \cdot x.im + \color{blue}{x.re \cdot x.im}\right) \cdot x.re \]
      2. count-280.1%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + \color{blue}{\left(2 \cdot \left(x.re \cdot x.im\right)\right)} \cdot x.re \]
      3. *-commutative80.1%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + \color{blue}{\left(\left(x.re \cdot x.im\right) \cdot 2\right)} \cdot x.re \]
    11. Applied egg-rr70.0%

      \[\leadsto \left(x.im + x.re\right) \cdot \left(x.im \cdot x.re\right) + \color{blue}{\left(\left(x.re \cdot x.im\right) \cdot 2\right)} \cdot x.re \]

    if 1.19999999999999992e-62 < x.im

    1. Initial program 78.4%

      \[\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    2. Add Preprocessing
    3. Step-by-step derivation
      1. difference-of-squares86.0%

        \[\leadsto \color{blue}{\left(\left(x.re + x.im\right) \cdot \left(x.re - x.im\right)\right)} \cdot x.im + -3 \]
      2. *-commutative86.0%

        \[\leadsto \color{blue}{\left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right)} \cdot x.im + -3 \]
    4. Applied egg-rr83.8%

      \[\leadsto \color{blue}{\left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right)} \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    5. Step-by-step derivation
      1. *-commutative83.8%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + \left(x.re \cdot x.im + \color{blue}{x.re \cdot x.im}\right) \cdot x.re \]
      2. count-283.8%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + \color{blue}{\left(2 \cdot \left(x.re \cdot x.im\right)\right)} \cdot x.re \]
      3. *-commutative83.8%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + \color{blue}{\left(\left(x.re \cdot x.im\right) \cdot 2\right)} \cdot x.re \]
    6. Applied egg-rr83.8%

      \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + \color{blue}{\left(\left(x.re \cdot x.im\right) \cdot 2\right)} \cdot x.re \]
    7. Step-by-step derivation
      1. pow183.8%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + \color{blue}{{\left(\left(\left(x.re \cdot x.im\right) \cdot 2\right) \cdot x.re\right)}^{1}} \]
      2. *-commutative83.8%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + {\color{blue}{\left(x.re \cdot \left(\left(x.re \cdot x.im\right) \cdot 2\right)\right)}}^{1} \]
      3. *-commutative83.8%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + {\left(x.re \cdot \color{blue}{\left(2 \cdot \left(x.re \cdot x.im\right)\right)}\right)}^{1} \]
      4. count-283.8%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + {\left(x.re \cdot \color{blue}{\left(x.re \cdot x.im + x.re \cdot x.im\right)}\right)}^{1} \]
      5. flip-+0.0%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + {\left(x.re \cdot \color{blue}{\frac{\left(x.re \cdot x.im\right) \cdot \left(x.re \cdot x.im\right) - \left(x.re \cdot x.im\right) \cdot \left(x.re \cdot x.im\right)}{x.re \cdot x.im - x.re \cdot x.im}}\right)}^{1} \]
      6. +-inverses0.0%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + {\left(x.re \cdot \frac{\color{blue}{0}}{x.re \cdot x.im - x.re \cdot x.im}\right)}^{1} \]
      7. +-inverses0.0%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + {\left(x.re \cdot \frac{0}{\color{blue}{0}}\right)}^{1} \]
    8. Applied egg-rr0.0%

      \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + \color{blue}{{\left(x.re \cdot \frac{0}{0}\right)}^{1}} \]
    9. Simplified92.7%

      \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + \color{blue}{\left(-x.re\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification76.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x.im \leq 1.2 \cdot 10^{-62}:\\ \;\;\;\;x.re \cdot \left(\left(x.im \cdot x.re\right) \cdot 2\right) + \left(x.im + x.re\right) \cdot \left(x.im \cdot x.re\right)\\ \mathbf{else}:\\ \;\;\;\;x.im \cdot \left(\left(x.re - x.im\right) \cdot \left(x.im + x.re\right)\right) - x.re\\ \end{array} \]
  5. Add Preprocessing

Alternative 5: 86.4% accurate, 0.9× speedup?

\[\begin{array}{l} x.im\_m = \left|x.im\right| \\ x.im\_s = \mathsf{copysign}\left(1, x.im\right) \\ x.im\_s \cdot \begin{array}{l} \mathbf{if}\;x.im\_m \leq 3.3 \cdot 10^{-63}:\\ \;\;\;\;x.re \cdot \left(\left(x.im\_m \cdot x.re\right) \cdot 2\right) + x.im\_m \cdot \left(x.re \cdot \left(x.im\_m + x.re\right)\right)\\ \mathbf{else}:\\ \;\;\;\;x.im\_m \cdot \left(\left(x.re - x.im\_m\right) \cdot \left(x.im\_m + x.re\right)\right) - x.re\\ \end{array} \end{array} \]
x.im\_m = (fabs.f64 x.im)
x.im\_s = (copysign.f64 #s(literal 1 binary64) x.im)
(FPCore (x.im_s x.re x.im_m)
 :precision binary64
 (*
  x.im_s
  (if (<= x.im_m 3.3e-63)
    (+ (* x.re (* (* x.im_m x.re) 2.0)) (* x.im_m (* x.re (+ x.im_m x.re))))
    (- (* x.im_m (* (- x.re x.im_m) (+ x.im_m x.re))) x.re))))
x.im\_m = fabs(x_46_im);
x.im\_s = copysign(1.0, x_46_im);
double code(double x_46_im_s, double x_46_re, double x_46_im_m) {
	double tmp;
	if (x_46_im_m <= 3.3e-63) {
		tmp = (x_46_re * ((x_46_im_m * x_46_re) * 2.0)) + (x_46_im_m * (x_46_re * (x_46_im_m + x_46_re)));
	} else {
		tmp = (x_46_im_m * ((x_46_re - x_46_im_m) * (x_46_im_m + x_46_re))) - x_46_re;
	}
	return x_46_im_s * tmp;
}
x.im\_m = abs(x_46im)
x.im\_s = copysign(1.0d0, x_46im)
real(8) function code(x_46im_s, x_46re, x_46im_m)
    real(8), intent (in) :: x_46im_s
    real(8), intent (in) :: x_46re
    real(8), intent (in) :: x_46im_m
    real(8) :: tmp
    if (x_46im_m <= 3.3d-63) then
        tmp = (x_46re * ((x_46im_m * x_46re) * 2.0d0)) + (x_46im_m * (x_46re * (x_46im_m + x_46re)))
    else
        tmp = (x_46im_m * ((x_46re - x_46im_m) * (x_46im_m + x_46re))) - x_46re
    end if
    code = x_46im_s * tmp
end function
x.im\_m = Math.abs(x_46_im);
x.im\_s = Math.copySign(1.0, x_46_im);
public static double code(double x_46_im_s, double x_46_re, double x_46_im_m) {
	double tmp;
	if (x_46_im_m <= 3.3e-63) {
		tmp = (x_46_re * ((x_46_im_m * x_46_re) * 2.0)) + (x_46_im_m * (x_46_re * (x_46_im_m + x_46_re)));
	} else {
		tmp = (x_46_im_m * ((x_46_re - x_46_im_m) * (x_46_im_m + x_46_re))) - x_46_re;
	}
	return x_46_im_s * tmp;
}
x.im\_m = math.fabs(x_46_im)
x.im\_s = math.copysign(1.0, x_46_im)
def code(x_46_im_s, x_46_re, x_46_im_m):
	tmp = 0
	if x_46_im_m <= 3.3e-63:
		tmp = (x_46_re * ((x_46_im_m * x_46_re) * 2.0)) + (x_46_im_m * (x_46_re * (x_46_im_m + x_46_re)))
	else:
		tmp = (x_46_im_m * ((x_46_re - x_46_im_m) * (x_46_im_m + x_46_re))) - x_46_re
	return x_46_im_s * tmp
x.im\_m = abs(x_46_im)
x.im\_s = copysign(1.0, x_46_im)
function code(x_46_im_s, x_46_re, x_46_im_m)
	tmp = 0.0
	if (x_46_im_m <= 3.3e-63)
		tmp = Float64(Float64(x_46_re * Float64(Float64(x_46_im_m * x_46_re) * 2.0)) + Float64(x_46_im_m * Float64(x_46_re * Float64(x_46_im_m + x_46_re))));
	else
		tmp = Float64(Float64(x_46_im_m * Float64(Float64(x_46_re - x_46_im_m) * Float64(x_46_im_m + x_46_re))) - x_46_re);
	end
	return Float64(x_46_im_s * tmp)
end
x.im\_m = abs(x_46_im);
x.im\_s = sign(x_46_im) * abs(1.0);
function tmp_2 = code(x_46_im_s, x_46_re, x_46_im_m)
	tmp = 0.0;
	if (x_46_im_m <= 3.3e-63)
		tmp = (x_46_re * ((x_46_im_m * x_46_re) * 2.0)) + (x_46_im_m * (x_46_re * (x_46_im_m + x_46_re)));
	else
		tmp = (x_46_im_m * ((x_46_re - x_46_im_m) * (x_46_im_m + x_46_re))) - x_46_re;
	end
	tmp_2 = x_46_im_s * tmp;
end
x.im\_m = N[Abs[x$46$im], $MachinePrecision]
x.im\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[x$46$im]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
code[x$46$im$95$s_, x$46$re_, x$46$im$95$m_] := N[(x$46$im$95$s * If[LessEqual[x$46$im$95$m, 3.3e-63], N[(N[(x$46$re * N[(N[(x$46$im$95$m * x$46$re), $MachinePrecision] * 2.0), $MachinePrecision]), $MachinePrecision] + N[(x$46$im$95$m * N[(x$46$re * N[(x$46$im$95$m + x$46$re), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(x$46$im$95$m * N[(N[(x$46$re - x$46$im$95$m), $MachinePrecision] * N[(x$46$im$95$m + x$46$re), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - x$46$re), $MachinePrecision]]), $MachinePrecision]
\begin{array}{l}
x.im\_m = \left|x.im\right|
\\
x.im\_s = \mathsf{copysign}\left(1, x.im\right)

\\
x.im\_s \cdot \begin{array}{l}
\mathbf{if}\;x.im\_m \leq 3.3 \cdot 10^{-63}:\\
\;\;\;\;x.re \cdot \left(\left(x.im\_m \cdot x.re\right) \cdot 2\right) + x.im\_m \cdot \left(x.re \cdot \left(x.im\_m + x.re\right)\right)\\

\mathbf{else}:\\
\;\;\;\;x.im\_m \cdot \left(\left(x.re - x.im\_m\right) \cdot \left(x.im\_m + x.re\right)\right) - x.re\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x.im < 3.29999999999999994e-63

    1. Initial program 79.4%

      \[\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    2. Add Preprocessing
    3. Step-by-step derivation
      1. difference-of-squares38.7%

        \[\leadsto \color{blue}{\left(\left(x.re + x.im\right) \cdot \left(x.re - x.im\right)\right)} \cdot x.im + -3 \]
      2. *-commutative38.7%

        \[\leadsto \color{blue}{\left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right)} \cdot x.im + -3 \]
    4. Applied egg-rr80.5%

      \[\leadsto \color{blue}{\left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right)} \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    5. Step-by-step derivation
      1. *-commutative80.5%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + \left(x.re \cdot x.im + \color{blue}{x.re \cdot x.im}\right) \cdot x.re \]
      2. count-280.5%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + \color{blue}{\left(2 \cdot \left(x.re \cdot x.im\right)\right)} \cdot x.re \]
      3. *-commutative80.5%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + \color{blue}{\left(\left(x.re \cdot x.im\right) \cdot 2\right)} \cdot x.re \]
    6. Applied egg-rr80.5%

      \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + \color{blue}{\left(\left(x.re \cdot x.im\right) \cdot 2\right)} \cdot x.re \]
    7. Taylor expanded in x.re around inf 60.5%

      \[\leadsto \left(\color{blue}{x.re} \cdot \left(x.re + x.im\right)\right) \cdot x.im + \left(\left(x.re \cdot x.im\right) \cdot 2\right) \cdot x.re \]

    if 3.29999999999999994e-63 < x.im

    1. Initial program 77.5%

      \[\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    2. Add Preprocessing
    3. Step-by-step derivation
      1. difference-of-squares85.0%

        \[\leadsto \color{blue}{\left(\left(x.re + x.im\right) \cdot \left(x.re - x.im\right)\right)} \cdot x.im + -3 \]
      2. *-commutative85.0%

        \[\leadsto \color{blue}{\left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right)} \cdot x.im + -3 \]
    4. Applied egg-rr82.8%

      \[\leadsto \color{blue}{\left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right)} \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    5. Step-by-step derivation
      1. *-commutative82.8%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + \left(x.re \cdot x.im + \color{blue}{x.re \cdot x.im}\right) \cdot x.re \]
      2. count-282.8%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + \color{blue}{\left(2 \cdot \left(x.re \cdot x.im\right)\right)} \cdot x.re \]
      3. *-commutative82.8%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + \color{blue}{\left(\left(x.re \cdot x.im\right) \cdot 2\right)} \cdot x.re \]
    6. Applied egg-rr82.8%

      \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + \color{blue}{\left(\left(x.re \cdot x.im\right) \cdot 2\right)} \cdot x.re \]
    7. Step-by-step derivation
      1. pow182.8%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + \color{blue}{{\left(\left(\left(x.re \cdot x.im\right) \cdot 2\right) \cdot x.re\right)}^{1}} \]
      2. *-commutative82.8%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + {\color{blue}{\left(x.re \cdot \left(\left(x.re \cdot x.im\right) \cdot 2\right)\right)}}^{1} \]
      3. *-commutative82.8%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + {\left(x.re \cdot \color{blue}{\left(2 \cdot \left(x.re \cdot x.im\right)\right)}\right)}^{1} \]
      4. count-282.8%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + {\left(x.re \cdot \color{blue}{\left(x.re \cdot x.im + x.re \cdot x.im\right)}\right)}^{1} \]
      5. flip-+0.0%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + {\left(x.re \cdot \color{blue}{\frac{\left(x.re \cdot x.im\right) \cdot \left(x.re \cdot x.im\right) - \left(x.re \cdot x.im\right) \cdot \left(x.re \cdot x.im\right)}{x.re \cdot x.im - x.re \cdot x.im}}\right)}^{1} \]
      6. +-inverses0.0%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + {\left(x.re \cdot \frac{\color{blue}{0}}{x.re \cdot x.im - x.re \cdot x.im}\right)}^{1} \]
      7. +-inverses0.0%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + {\left(x.re \cdot \frac{0}{\color{blue}{0}}\right)}^{1} \]
    8. Applied egg-rr0.0%

      \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + \color{blue}{{\left(x.re \cdot \frac{0}{0}\right)}^{1}} \]
    9. Simplified91.6%

      \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + \color{blue}{\left(-x.re\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification69.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x.im \leq 3.3 \cdot 10^{-63}:\\ \;\;\;\;x.re \cdot \left(\left(x.im \cdot x.re\right) \cdot 2\right) + x.im \cdot \left(x.re \cdot \left(x.im + x.re\right)\right)\\ \mathbf{else}:\\ \;\;\;\;x.im \cdot \left(\left(x.re - x.im\right) \cdot \left(x.im + x.re\right)\right) - x.re\\ \end{array} \]
  5. Add Preprocessing

Alternative 6: 86.4% accurate, 1.2× speedup?

\[\begin{array}{l} x.im\_m = \left|x.im\right| \\ x.im\_s = \mathsf{copysign}\left(1, x.im\right) \\ x.im\_s \cdot \begin{array}{l} \mathbf{if}\;x.im\_m \leq 4.3 \cdot 10^{-63}:\\ \;\;\;\;3 \cdot \left(x.im\_m \cdot \left(x.re \cdot x.re\right)\right)\\ \mathbf{else}:\\ \;\;\;\;x.im\_m \cdot \left(\left(x.re - x.im\_m\right) \cdot \left(x.im\_m + x.re\right)\right) - x.re\\ \end{array} \end{array} \]
x.im\_m = (fabs.f64 x.im)
x.im\_s = (copysign.f64 #s(literal 1 binary64) x.im)
(FPCore (x.im_s x.re x.im_m)
 :precision binary64
 (*
  x.im_s
  (if (<= x.im_m 4.3e-63)
    (* 3.0 (* x.im_m (* x.re x.re)))
    (- (* x.im_m (* (- x.re x.im_m) (+ x.im_m x.re))) x.re))))
x.im\_m = fabs(x_46_im);
x.im\_s = copysign(1.0, x_46_im);
double code(double x_46_im_s, double x_46_re, double x_46_im_m) {
	double tmp;
	if (x_46_im_m <= 4.3e-63) {
		tmp = 3.0 * (x_46_im_m * (x_46_re * x_46_re));
	} else {
		tmp = (x_46_im_m * ((x_46_re - x_46_im_m) * (x_46_im_m + x_46_re))) - x_46_re;
	}
	return x_46_im_s * tmp;
}
x.im\_m = abs(x_46im)
x.im\_s = copysign(1.0d0, x_46im)
real(8) function code(x_46im_s, x_46re, x_46im_m)
    real(8), intent (in) :: x_46im_s
    real(8), intent (in) :: x_46re
    real(8), intent (in) :: x_46im_m
    real(8) :: tmp
    if (x_46im_m <= 4.3d-63) then
        tmp = 3.0d0 * (x_46im_m * (x_46re * x_46re))
    else
        tmp = (x_46im_m * ((x_46re - x_46im_m) * (x_46im_m + x_46re))) - x_46re
    end if
    code = x_46im_s * tmp
end function
x.im\_m = Math.abs(x_46_im);
x.im\_s = Math.copySign(1.0, x_46_im);
public static double code(double x_46_im_s, double x_46_re, double x_46_im_m) {
	double tmp;
	if (x_46_im_m <= 4.3e-63) {
		tmp = 3.0 * (x_46_im_m * (x_46_re * x_46_re));
	} else {
		tmp = (x_46_im_m * ((x_46_re - x_46_im_m) * (x_46_im_m + x_46_re))) - x_46_re;
	}
	return x_46_im_s * tmp;
}
x.im\_m = math.fabs(x_46_im)
x.im\_s = math.copysign(1.0, x_46_im)
def code(x_46_im_s, x_46_re, x_46_im_m):
	tmp = 0
	if x_46_im_m <= 4.3e-63:
		tmp = 3.0 * (x_46_im_m * (x_46_re * x_46_re))
	else:
		tmp = (x_46_im_m * ((x_46_re - x_46_im_m) * (x_46_im_m + x_46_re))) - x_46_re
	return x_46_im_s * tmp
x.im\_m = abs(x_46_im)
x.im\_s = copysign(1.0, x_46_im)
function code(x_46_im_s, x_46_re, x_46_im_m)
	tmp = 0.0
	if (x_46_im_m <= 4.3e-63)
		tmp = Float64(3.0 * Float64(x_46_im_m * Float64(x_46_re * x_46_re)));
	else
		tmp = Float64(Float64(x_46_im_m * Float64(Float64(x_46_re - x_46_im_m) * Float64(x_46_im_m + x_46_re))) - x_46_re);
	end
	return Float64(x_46_im_s * tmp)
end
x.im\_m = abs(x_46_im);
x.im\_s = sign(x_46_im) * abs(1.0);
function tmp_2 = code(x_46_im_s, x_46_re, x_46_im_m)
	tmp = 0.0;
	if (x_46_im_m <= 4.3e-63)
		tmp = 3.0 * (x_46_im_m * (x_46_re * x_46_re));
	else
		tmp = (x_46_im_m * ((x_46_re - x_46_im_m) * (x_46_im_m + x_46_re))) - x_46_re;
	end
	tmp_2 = x_46_im_s * tmp;
end
x.im\_m = N[Abs[x$46$im], $MachinePrecision]
x.im\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[x$46$im]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
code[x$46$im$95$s_, x$46$re_, x$46$im$95$m_] := N[(x$46$im$95$s * If[LessEqual[x$46$im$95$m, 4.3e-63], N[(3.0 * N[(x$46$im$95$m * N[(x$46$re * x$46$re), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(x$46$im$95$m * N[(N[(x$46$re - x$46$im$95$m), $MachinePrecision] * N[(x$46$im$95$m + x$46$re), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - x$46$re), $MachinePrecision]]), $MachinePrecision]
\begin{array}{l}
x.im\_m = \left|x.im\right|
\\
x.im\_s = \mathsf{copysign}\left(1, x.im\right)

\\
x.im\_s \cdot \begin{array}{l}
\mathbf{if}\;x.im\_m \leq 4.3 \cdot 10^{-63}:\\
\;\;\;\;3 \cdot \left(x.im\_m \cdot \left(x.re \cdot x.re\right)\right)\\

\mathbf{else}:\\
\;\;\;\;x.im\_m \cdot \left(\left(x.re - x.im\_m\right) \cdot \left(x.im\_m + x.re\right)\right) - x.re\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x.im < 4.2999999999999999e-63

    1. Initial program 79.4%

      \[\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    2. Simplified87.6%

      \[\leadsto \color{blue}{x.re \cdot \left(x.re \cdot \left(x.im \cdot 3\right)\right) - {x.im}^{3}} \]
    3. Add Preprocessing
    4. Taylor expanded in x.re around inf 58.6%

      \[\leadsto \color{blue}{3 \cdot \left(x.im \cdot {x.re}^{2}\right)} \]
    5. Step-by-step derivation
      1. unpow258.6%

        \[\leadsto 3 \cdot \left(x.im \cdot \color{blue}{\left(x.re \cdot x.re\right)}\right) \]
    6. Applied egg-rr58.6%

      \[\leadsto 3 \cdot \left(x.im \cdot \color{blue}{\left(x.re \cdot x.re\right)}\right) \]

    if 4.2999999999999999e-63 < x.im

    1. Initial program 77.5%

      \[\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    2. Add Preprocessing
    3. Step-by-step derivation
      1. difference-of-squares85.0%

        \[\leadsto \color{blue}{\left(\left(x.re + x.im\right) \cdot \left(x.re - x.im\right)\right)} \cdot x.im + -3 \]
      2. *-commutative85.0%

        \[\leadsto \color{blue}{\left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right)} \cdot x.im + -3 \]
    4. Applied egg-rr82.8%

      \[\leadsto \color{blue}{\left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right)} \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    5. Step-by-step derivation
      1. *-commutative82.8%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + \left(x.re \cdot x.im + \color{blue}{x.re \cdot x.im}\right) \cdot x.re \]
      2. count-282.8%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + \color{blue}{\left(2 \cdot \left(x.re \cdot x.im\right)\right)} \cdot x.re \]
      3. *-commutative82.8%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + \color{blue}{\left(\left(x.re \cdot x.im\right) \cdot 2\right)} \cdot x.re \]
    6. Applied egg-rr82.8%

      \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + \color{blue}{\left(\left(x.re \cdot x.im\right) \cdot 2\right)} \cdot x.re \]
    7. Step-by-step derivation
      1. pow182.8%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + \color{blue}{{\left(\left(\left(x.re \cdot x.im\right) \cdot 2\right) \cdot x.re\right)}^{1}} \]
      2. *-commutative82.8%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + {\color{blue}{\left(x.re \cdot \left(\left(x.re \cdot x.im\right) \cdot 2\right)\right)}}^{1} \]
      3. *-commutative82.8%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + {\left(x.re \cdot \color{blue}{\left(2 \cdot \left(x.re \cdot x.im\right)\right)}\right)}^{1} \]
      4. count-282.8%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + {\left(x.re \cdot \color{blue}{\left(x.re \cdot x.im + x.re \cdot x.im\right)}\right)}^{1} \]
      5. flip-+0.0%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + {\left(x.re \cdot \color{blue}{\frac{\left(x.re \cdot x.im\right) \cdot \left(x.re \cdot x.im\right) - \left(x.re \cdot x.im\right) \cdot \left(x.re \cdot x.im\right)}{x.re \cdot x.im - x.re \cdot x.im}}\right)}^{1} \]
      6. +-inverses0.0%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + {\left(x.re \cdot \frac{\color{blue}{0}}{x.re \cdot x.im - x.re \cdot x.im}\right)}^{1} \]
      7. +-inverses0.0%

        \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + {\left(x.re \cdot \frac{0}{\color{blue}{0}}\right)}^{1} \]
    8. Applied egg-rr0.0%

      \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + \color{blue}{{\left(x.re \cdot \frac{0}{0}\right)}^{1}} \]
    9. Simplified91.6%

      \[\leadsto \left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right) \cdot x.im + \color{blue}{\left(-x.re\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification68.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x.im \leq 4.3 \cdot 10^{-63}:\\ \;\;\;\;3 \cdot \left(x.im \cdot \left(x.re \cdot x.re\right)\right)\\ \mathbf{else}:\\ \;\;\;\;x.im \cdot \left(\left(x.re - x.im\right) \cdot \left(x.im + x.re\right)\right) - x.re\\ \end{array} \]
  5. Add Preprocessing

Alternative 7: 85.2% accurate, 1.2× speedup?

\[\begin{array}{l} x.im\_m = \left|x.im\right| \\ x.im\_s = \mathsf{copysign}\left(1, x.im\right) \\ x.im\_s \cdot \begin{array}{l} \mathbf{if}\;x.im\_m \leq 2.75 \cdot 10^{-15}:\\ \;\;\;\;3 \cdot \left(x.im\_m \cdot \left(x.re \cdot x.re\right)\right)\\ \mathbf{else}:\\ \;\;\;\;x.im\_m \cdot \left(\left(x.re - x.im\_m\right) \cdot \left(x.im\_m + x.re\right)\right) + -3\\ \end{array} \end{array} \]
x.im\_m = (fabs.f64 x.im)
x.im\_s = (copysign.f64 #s(literal 1 binary64) x.im)
(FPCore (x.im_s x.re x.im_m)
 :precision binary64
 (*
  x.im_s
  (if (<= x.im_m 2.75e-15)
    (* 3.0 (* x.im_m (* x.re x.re)))
    (+ (* x.im_m (* (- x.re x.im_m) (+ x.im_m x.re))) -3.0))))
x.im\_m = fabs(x_46_im);
x.im\_s = copysign(1.0, x_46_im);
double code(double x_46_im_s, double x_46_re, double x_46_im_m) {
	double tmp;
	if (x_46_im_m <= 2.75e-15) {
		tmp = 3.0 * (x_46_im_m * (x_46_re * x_46_re));
	} else {
		tmp = (x_46_im_m * ((x_46_re - x_46_im_m) * (x_46_im_m + x_46_re))) + -3.0;
	}
	return x_46_im_s * tmp;
}
x.im\_m = abs(x_46im)
x.im\_s = copysign(1.0d0, x_46im)
real(8) function code(x_46im_s, x_46re, x_46im_m)
    real(8), intent (in) :: x_46im_s
    real(8), intent (in) :: x_46re
    real(8), intent (in) :: x_46im_m
    real(8) :: tmp
    if (x_46im_m <= 2.75d-15) then
        tmp = 3.0d0 * (x_46im_m * (x_46re * x_46re))
    else
        tmp = (x_46im_m * ((x_46re - x_46im_m) * (x_46im_m + x_46re))) + (-3.0d0)
    end if
    code = x_46im_s * tmp
end function
x.im\_m = Math.abs(x_46_im);
x.im\_s = Math.copySign(1.0, x_46_im);
public static double code(double x_46_im_s, double x_46_re, double x_46_im_m) {
	double tmp;
	if (x_46_im_m <= 2.75e-15) {
		tmp = 3.0 * (x_46_im_m * (x_46_re * x_46_re));
	} else {
		tmp = (x_46_im_m * ((x_46_re - x_46_im_m) * (x_46_im_m + x_46_re))) + -3.0;
	}
	return x_46_im_s * tmp;
}
x.im\_m = math.fabs(x_46_im)
x.im\_s = math.copysign(1.0, x_46_im)
def code(x_46_im_s, x_46_re, x_46_im_m):
	tmp = 0
	if x_46_im_m <= 2.75e-15:
		tmp = 3.0 * (x_46_im_m * (x_46_re * x_46_re))
	else:
		tmp = (x_46_im_m * ((x_46_re - x_46_im_m) * (x_46_im_m + x_46_re))) + -3.0
	return x_46_im_s * tmp
x.im\_m = abs(x_46_im)
x.im\_s = copysign(1.0, x_46_im)
function code(x_46_im_s, x_46_re, x_46_im_m)
	tmp = 0.0
	if (x_46_im_m <= 2.75e-15)
		tmp = Float64(3.0 * Float64(x_46_im_m * Float64(x_46_re * x_46_re)));
	else
		tmp = Float64(Float64(x_46_im_m * Float64(Float64(x_46_re - x_46_im_m) * Float64(x_46_im_m + x_46_re))) + -3.0);
	end
	return Float64(x_46_im_s * tmp)
end
x.im\_m = abs(x_46_im);
x.im\_s = sign(x_46_im) * abs(1.0);
function tmp_2 = code(x_46_im_s, x_46_re, x_46_im_m)
	tmp = 0.0;
	if (x_46_im_m <= 2.75e-15)
		tmp = 3.0 * (x_46_im_m * (x_46_re * x_46_re));
	else
		tmp = (x_46_im_m * ((x_46_re - x_46_im_m) * (x_46_im_m + x_46_re))) + -3.0;
	end
	tmp_2 = x_46_im_s * tmp;
end
x.im\_m = N[Abs[x$46$im], $MachinePrecision]
x.im\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[x$46$im]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
code[x$46$im$95$s_, x$46$re_, x$46$im$95$m_] := N[(x$46$im$95$s * If[LessEqual[x$46$im$95$m, 2.75e-15], N[(3.0 * N[(x$46$im$95$m * N[(x$46$re * x$46$re), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(x$46$im$95$m * N[(N[(x$46$re - x$46$im$95$m), $MachinePrecision] * N[(x$46$im$95$m + x$46$re), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + -3.0), $MachinePrecision]]), $MachinePrecision]
\begin{array}{l}
x.im\_m = \left|x.im\right|
\\
x.im\_s = \mathsf{copysign}\left(1, x.im\right)

\\
x.im\_s \cdot \begin{array}{l}
\mathbf{if}\;x.im\_m \leq 2.75 \cdot 10^{-15}:\\
\;\;\;\;3 \cdot \left(x.im\_m \cdot \left(x.re \cdot x.re\right)\right)\\

\mathbf{else}:\\
\;\;\;\;x.im\_m \cdot \left(\left(x.re - x.im\_m\right) \cdot \left(x.im\_m + x.re\right)\right) + -3\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x.im < 2.7500000000000001e-15

    1. Initial program 79.9%

      \[\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    2. Simplified88.2%

      \[\leadsto \color{blue}{x.re \cdot \left(x.re \cdot \left(x.im \cdot 3\right)\right) - {x.im}^{3}} \]
    3. Add Preprocessing
    4. Taylor expanded in x.re around inf 58.2%

      \[\leadsto \color{blue}{3 \cdot \left(x.im \cdot {x.re}^{2}\right)} \]
    5. Step-by-step derivation
      1. unpow258.2%

        \[\leadsto 3 \cdot \left(x.im \cdot \color{blue}{\left(x.re \cdot x.re\right)}\right) \]
    6. Applied egg-rr58.2%

      \[\leadsto 3 \cdot \left(x.im \cdot \color{blue}{\left(x.re \cdot x.re\right)}\right) \]

    if 2.7500000000000001e-15 < x.im

    1. Initial program 75.6%

      \[\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    2. Add Preprocessing
    3. Taylor expanded in x.re around 0 75.6%

      \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.im + \color{blue}{2 \cdot \left(x.im \cdot {x.re}^{2}\right)} \]
    4. Simplified79.2%

      \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.im + \color{blue}{-3} \]
    5. Step-by-step derivation
      1. difference-of-squares92.9%

        \[\leadsto \color{blue}{\left(\left(x.re + x.im\right) \cdot \left(x.re - x.im\right)\right)} \cdot x.im + -3 \]
      2. *-commutative92.9%

        \[\leadsto \color{blue}{\left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right)} \cdot x.im + -3 \]
    6. Applied egg-rr92.9%

      \[\leadsto \color{blue}{\left(\left(x.re - x.im\right) \cdot \left(x.re + x.im\right)\right)} \cdot x.im + -3 \]
  3. Recombined 2 regimes into one program.
  4. Final simplification67.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x.im \leq 2.75 \cdot 10^{-15}:\\ \;\;\;\;3 \cdot \left(x.im \cdot \left(x.re \cdot x.re\right)\right)\\ \mathbf{else}:\\ \;\;\;\;x.im \cdot \left(\left(x.re - x.im\right) \cdot \left(x.im + x.re\right)\right) + -3\\ \end{array} \]
  5. Add Preprocessing

Alternative 8: 68.3% accurate, 1.6× speedup?

\[\begin{array}{l} x.im\_m = \left|x.im\right| \\ x.im\_s = \mathsf{copysign}\left(1, x.im\right) \\ x.im\_s \cdot \begin{array}{l} \mathbf{if}\;x.im\_m \leq 3.5 \cdot 10^{+131}:\\ \;\;\;\;3 \cdot \left(x.im\_m \cdot \left(x.re \cdot x.re\right)\right)\\ \mathbf{else}:\\ \;\;\;\;-3 + x.im\_m \cdot \left(x.im\_m \cdot -3\right)\\ \end{array} \end{array} \]
x.im\_m = (fabs.f64 x.im)
x.im\_s = (copysign.f64 #s(literal 1 binary64) x.im)
(FPCore (x.im_s x.re x.im_m)
 :precision binary64
 (*
  x.im_s
  (if (<= x.im_m 3.5e+131)
    (* 3.0 (* x.im_m (* x.re x.re)))
    (+ -3.0 (* x.im_m (* x.im_m -3.0))))))
x.im\_m = fabs(x_46_im);
x.im\_s = copysign(1.0, x_46_im);
double code(double x_46_im_s, double x_46_re, double x_46_im_m) {
	double tmp;
	if (x_46_im_m <= 3.5e+131) {
		tmp = 3.0 * (x_46_im_m * (x_46_re * x_46_re));
	} else {
		tmp = -3.0 + (x_46_im_m * (x_46_im_m * -3.0));
	}
	return x_46_im_s * tmp;
}
x.im\_m = abs(x_46im)
x.im\_s = copysign(1.0d0, x_46im)
real(8) function code(x_46im_s, x_46re, x_46im_m)
    real(8), intent (in) :: x_46im_s
    real(8), intent (in) :: x_46re
    real(8), intent (in) :: x_46im_m
    real(8) :: tmp
    if (x_46im_m <= 3.5d+131) then
        tmp = 3.0d0 * (x_46im_m * (x_46re * x_46re))
    else
        tmp = (-3.0d0) + (x_46im_m * (x_46im_m * (-3.0d0)))
    end if
    code = x_46im_s * tmp
end function
x.im\_m = Math.abs(x_46_im);
x.im\_s = Math.copySign(1.0, x_46_im);
public static double code(double x_46_im_s, double x_46_re, double x_46_im_m) {
	double tmp;
	if (x_46_im_m <= 3.5e+131) {
		tmp = 3.0 * (x_46_im_m * (x_46_re * x_46_re));
	} else {
		tmp = -3.0 + (x_46_im_m * (x_46_im_m * -3.0));
	}
	return x_46_im_s * tmp;
}
x.im\_m = math.fabs(x_46_im)
x.im\_s = math.copysign(1.0, x_46_im)
def code(x_46_im_s, x_46_re, x_46_im_m):
	tmp = 0
	if x_46_im_m <= 3.5e+131:
		tmp = 3.0 * (x_46_im_m * (x_46_re * x_46_re))
	else:
		tmp = -3.0 + (x_46_im_m * (x_46_im_m * -3.0))
	return x_46_im_s * tmp
x.im\_m = abs(x_46_im)
x.im\_s = copysign(1.0, x_46_im)
function code(x_46_im_s, x_46_re, x_46_im_m)
	tmp = 0.0
	if (x_46_im_m <= 3.5e+131)
		tmp = Float64(3.0 * Float64(x_46_im_m * Float64(x_46_re * x_46_re)));
	else
		tmp = Float64(-3.0 + Float64(x_46_im_m * Float64(x_46_im_m * -3.0)));
	end
	return Float64(x_46_im_s * tmp)
end
x.im\_m = abs(x_46_im);
x.im\_s = sign(x_46_im) * abs(1.0);
function tmp_2 = code(x_46_im_s, x_46_re, x_46_im_m)
	tmp = 0.0;
	if (x_46_im_m <= 3.5e+131)
		tmp = 3.0 * (x_46_im_m * (x_46_re * x_46_re));
	else
		tmp = -3.0 + (x_46_im_m * (x_46_im_m * -3.0));
	end
	tmp_2 = x_46_im_s * tmp;
end
x.im\_m = N[Abs[x$46$im], $MachinePrecision]
x.im\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[x$46$im]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
code[x$46$im$95$s_, x$46$re_, x$46$im$95$m_] := N[(x$46$im$95$s * If[LessEqual[x$46$im$95$m, 3.5e+131], N[(3.0 * N[(x$46$im$95$m * N[(x$46$re * x$46$re), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(-3.0 + N[(x$46$im$95$m * N[(x$46$im$95$m * -3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]), $MachinePrecision]
\begin{array}{l}
x.im\_m = \left|x.im\right|
\\
x.im\_s = \mathsf{copysign}\left(1, x.im\right)

\\
x.im\_s \cdot \begin{array}{l}
\mathbf{if}\;x.im\_m \leq 3.5 \cdot 10^{+131}:\\
\;\;\;\;3 \cdot \left(x.im\_m \cdot \left(x.re \cdot x.re\right)\right)\\

\mathbf{else}:\\
\;\;\;\;-3 + x.im\_m \cdot \left(x.im\_m \cdot -3\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x.im < 3.4999999999999999e131

    1. Initial program 82.8%

      \[\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    2. Simplified89.0%

      \[\leadsto \color{blue}{x.re \cdot \left(x.re \cdot \left(x.im \cdot 3\right)\right) - {x.im}^{3}} \]
    3. Add Preprocessing
    4. Taylor expanded in x.re around inf 54.3%

      \[\leadsto \color{blue}{3 \cdot \left(x.im \cdot {x.re}^{2}\right)} \]
    5. Step-by-step derivation
      1. unpow254.3%

        \[\leadsto 3 \cdot \left(x.im \cdot \color{blue}{\left(x.re \cdot x.re\right)}\right) \]
    6. Applied egg-rr54.3%

      \[\leadsto 3 \cdot \left(x.im \cdot \color{blue}{\left(x.re \cdot x.re\right)}\right) \]

    if 3.4999999999999999e131 < x.im

    1. Initial program 52.9%

      \[\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    2. Add Preprocessing
    3. Step-by-step derivation
      1. difference-of-squares64.7%

        \[\leadsto \color{blue}{\left(\left(x.re + x.im\right) \cdot \left(x.re - x.im\right)\right)} \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    4. Applied egg-rr64.7%

      \[\leadsto \color{blue}{\left(\left(x.re + x.im\right) \cdot \left(x.re - x.im\right)\right)} \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    5. Simplified48.3%

      \[\leadsto \color{blue}{\left(\left(x.im + x.re\right) \cdot \left(x.re + -3\right)\right)} \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    6. Taylor expanded in x.re around 0 39.5%

      \[\leadsto \color{blue}{\left(-3 \cdot x.im\right)} \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    7. Simplified39.5%

      \[\leadsto \color{blue}{\left(x.im \cdot -3\right)} \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    8. Taylor expanded in x.re around 0 39.5%

      \[\leadsto \left(x.im \cdot -3\right) \cdot x.im + \color{blue}{2 \cdot \left(x.im \cdot {x.re}^{2}\right)} \]
    9. Simplified72.1%

      \[\leadsto \left(x.im \cdot -3\right) \cdot x.im + \color{blue}{-3} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification56.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x.im \leq 3.5 \cdot 10^{+131}:\\ \;\;\;\;3 \cdot \left(x.im \cdot \left(x.re \cdot x.re\right)\right)\\ \mathbf{else}:\\ \;\;\;\;-3 + x.im \cdot \left(x.im \cdot -3\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 9: 68.3% accurate, 1.6× speedup?

\[\begin{array}{l} x.im\_m = \left|x.im\right| \\ x.im\_s = \mathsf{copysign}\left(1, x.im\right) \\ x.im\_s \cdot \begin{array}{l} \mathbf{if}\;x.im\_m \leq 3.5 \cdot 10^{+131}:\\ \;\;\;\;3 \cdot \left(x.im\_m \cdot \left(x.re \cdot x.re\right)\right)\\ \mathbf{else}:\\ \;\;\;\;x.re - x.im\_m \cdot x.im\_m\\ \end{array} \end{array} \]
x.im\_m = (fabs.f64 x.im)
x.im\_s = (copysign.f64 #s(literal 1 binary64) x.im)
(FPCore (x.im_s x.re x.im_m)
 :precision binary64
 (*
  x.im_s
  (if (<= x.im_m 3.5e+131)
    (* 3.0 (* x.im_m (* x.re x.re)))
    (- x.re (* x.im_m x.im_m)))))
x.im\_m = fabs(x_46_im);
x.im\_s = copysign(1.0, x_46_im);
double code(double x_46_im_s, double x_46_re, double x_46_im_m) {
	double tmp;
	if (x_46_im_m <= 3.5e+131) {
		tmp = 3.0 * (x_46_im_m * (x_46_re * x_46_re));
	} else {
		tmp = x_46_re - (x_46_im_m * x_46_im_m);
	}
	return x_46_im_s * tmp;
}
x.im\_m = abs(x_46im)
x.im\_s = copysign(1.0d0, x_46im)
real(8) function code(x_46im_s, x_46re, x_46im_m)
    real(8), intent (in) :: x_46im_s
    real(8), intent (in) :: x_46re
    real(8), intent (in) :: x_46im_m
    real(8) :: tmp
    if (x_46im_m <= 3.5d+131) then
        tmp = 3.0d0 * (x_46im_m * (x_46re * x_46re))
    else
        tmp = x_46re - (x_46im_m * x_46im_m)
    end if
    code = x_46im_s * tmp
end function
x.im\_m = Math.abs(x_46_im);
x.im\_s = Math.copySign(1.0, x_46_im);
public static double code(double x_46_im_s, double x_46_re, double x_46_im_m) {
	double tmp;
	if (x_46_im_m <= 3.5e+131) {
		tmp = 3.0 * (x_46_im_m * (x_46_re * x_46_re));
	} else {
		tmp = x_46_re - (x_46_im_m * x_46_im_m);
	}
	return x_46_im_s * tmp;
}
x.im\_m = math.fabs(x_46_im)
x.im\_s = math.copysign(1.0, x_46_im)
def code(x_46_im_s, x_46_re, x_46_im_m):
	tmp = 0
	if x_46_im_m <= 3.5e+131:
		tmp = 3.0 * (x_46_im_m * (x_46_re * x_46_re))
	else:
		tmp = x_46_re - (x_46_im_m * x_46_im_m)
	return x_46_im_s * tmp
x.im\_m = abs(x_46_im)
x.im\_s = copysign(1.0, x_46_im)
function code(x_46_im_s, x_46_re, x_46_im_m)
	tmp = 0.0
	if (x_46_im_m <= 3.5e+131)
		tmp = Float64(3.0 * Float64(x_46_im_m * Float64(x_46_re * x_46_re)));
	else
		tmp = Float64(x_46_re - Float64(x_46_im_m * x_46_im_m));
	end
	return Float64(x_46_im_s * tmp)
end
x.im\_m = abs(x_46_im);
x.im\_s = sign(x_46_im) * abs(1.0);
function tmp_2 = code(x_46_im_s, x_46_re, x_46_im_m)
	tmp = 0.0;
	if (x_46_im_m <= 3.5e+131)
		tmp = 3.0 * (x_46_im_m * (x_46_re * x_46_re));
	else
		tmp = x_46_re - (x_46_im_m * x_46_im_m);
	end
	tmp_2 = x_46_im_s * tmp;
end
x.im\_m = N[Abs[x$46$im], $MachinePrecision]
x.im\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[x$46$im]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
code[x$46$im$95$s_, x$46$re_, x$46$im$95$m_] := N[(x$46$im$95$s * If[LessEqual[x$46$im$95$m, 3.5e+131], N[(3.0 * N[(x$46$im$95$m * N[(x$46$re * x$46$re), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x$46$re - N[(x$46$im$95$m * x$46$im$95$m), $MachinePrecision]), $MachinePrecision]]), $MachinePrecision]
\begin{array}{l}
x.im\_m = \left|x.im\right|
\\
x.im\_s = \mathsf{copysign}\left(1, x.im\right)

\\
x.im\_s \cdot \begin{array}{l}
\mathbf{if}\;x.im\_m \leq 3.5 \cdot 10^{+131}:\\
\;\;\;\;3 \cdot \left(x.im\_m \cdot \left(x.re \cdot x.re\right)\right)\\

\mathbf{else}:\\
\;\;\;\;x.re - x.im\_m \cdot x.im\_m\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x.im < 3.4999999999999999e131

    1. Initial program 82.8%

      \[\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    2. Simplified89.0%

      \[\leadsto \color{blue}{x.re \cdot \left(x.re \cdot \left(x.im \cdot 3\right)\right) - {x.im}^{3}} \]
    3. Add Preprocessing
    4. Taylor expanded in x.re around inf 54.3%

      \[\leadsto \color{blue}{3 \cdot \left(x.im \cdot {x.re}^{2}\right)} \]
    5. Step-by-step derivation
      1. unpow254.3%

        \[\leadsto 3 \cdot \left(x.im \cdot \color{blue}{\left(x.re \cdot x.re\right)}\right) \]
    6. Applied egg-rr54.3%

      \[\leadsto 3 \cdot \left(x.im \cdot \color{blue}{\left(x.re \cdot x.re\right)}\right) \]

    if 3.4999999999999999e131 < x.im

    1. Initial program 52.9%

      \[\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    2. Add Preprocessing
    3. Step-by-step derivation
      1. difference-of-squares64.7%

        \[\leadsto \color{blue}{\left(\left(x.re + x.im\right) \cdot \left(x.re - x.im\right)\right)} \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    4. Applied egg-rr64.7%

      \[\leadsto \color{blue}{\left(\left(x.re + x.im\right) \cdot \left(x.re - x.im\right)\right)} \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    5. Simplified48.3%

      \[\leadsto \color{blue}{\left(\left(x.im + x.re\right) \cdot \left(x.re + -3\right)\right)} \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    6. Step-by-step derivation
      1. pow148.3%

        \[\leadsto \color{blue}{{\left(\left(\left(x.im + x.re\right) \cdot \left(x.re + -3\right)\right) \cdot x.im\right)}^{1}} + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
      2. associate-*l*48.3%

        \[\leadsto {\color{blue}{\left(\left(x.im + x.re\right) \cdot \left(\left(x.re + -3\right) \cdot x.im\right)\right)}}^{1} + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
      3. *-commutative48.3%

        \[\leadsto {\left(\left(x.im + x.re\right) \cdot \color{blue}{\left(x.im \cdot \left(x.re + -3\right)\right)}\right)}^{1} + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    7. Applied egg-rr48.3%

      \[\leadsto \color{blue}{{\left(\left(x.im + x.re\right) \cdot \left(x.im \cdot \left(x.re + -3\right)\right)\right)}^{1}} + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    8. Simplified48.3%

      \[\leadsto \color{blue}{\left(x.im + x.re\right) \cdot \left(x.im \cdot \left(x.re + -3\right)\right)} + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    9. Step-by-step derivation
      1. +-commutative48.3%

        \[\leadsto \color{blue}{\left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re + \left(x.im + x.re\right) \cdot \left(x.im \cdot \left(x.re + -3\right)\right)} \]
      2. *-commutative48.3%

        \[\leadsto \color{blue}{x.re \cdot \left(x.re \cdot x.im + x.im \cdot x.re\right)} + \left(x.im + x.re\right) \cdot \left(x.im \cdot \left(x.re + -3\right)\right) \]
      3. fma-define51.2%

        \[\leadsto \color{blue}{\mathsf{fma}\left(x.re, x.re \cdot x.im + x.im \cdot x.re, \left(x.im + x.re\right) \cdot \left(x.im \cdot \left(x.re + -3\right)\right)\right)} \]
      4. *-commutative51.2%

        \[\leadsto \mathsf{fma}\left(x.re, \color{blue}{x.im \cdot x.re} + x.im \cdot x.re, \left(x.im + x.re\right) \cdot \left(x.im \cdot \left(x.re + -3\right)\right)\right) \]
      5. flip-+0.0%

        \[\leadsto \mathsf{fma}\left(x.re, \color{blue}{\frac{\left(x.im \cdot x.re\right) \cdot \left(x.im \cdot x.re\right) - \left(x.im \cdot x.re\right) \cdot \left(x.im \cdot x.re\right)}{x.im \cdot x.re - x.im \cdot x.re}}, \left(x.im + x.re\right) \cdot \left(x.im \cdot \left(x.re + -3\right)\right)\right) \]
      6. +-inverses0.0%

        \[\leadsto \mathsf{fma}\left(x.re, \frac{\color{blue}{0}}{x.im \cdot x.re - x.im \cdot x.re}, \left(x.im + x.re\right) \cdot \left(x.im \cdot \left(x.re + -3\right)\right)\right) \]
      7. +-inverses0.0%

        \[\leadsto \mathsf{fma}\left(x.re, \frac{0}{\color{blue}{0}}, \left(x.im + x.re\right) \cdot \left(x.im \cdot \left(x.re + -3\right)\right)\right) \]
      8. +-commutative0.0%

        \[\leadsto \mathsf{fma}\left(x.re, \frac{0}{0}, \color{blue}{\left(x.re + x.im\right)} \cdot \left(x.im \cdot \left(x.re + -3\right)\right)\right) \]
    10. Applied egg-rr0.0%

      \[\leadsto \color{blue}{\mathsf{fma}\left(x.re, \frac{0}{0}, \left(x.re + x.im\right) \cdot \left(x.im \cdot \left(x.re + -3\right)\right)\right)} \]
    11. Simplified57.1%

      \[\leadsto \color{blue}{x.re + x.im \cdot \left(\left(x.re + -3\right) \cdot \left(x.im + x.re\right)\right)} \]
    12. Taylor expanded in x.re around 0 72.1%

      \[\leadsto x.re + x.im \cdot \color{blue}{\left(-3 \cdot x.im\right)} \]
    13. Simplified72.1%

      \[\leadsto x.re + x.im \cdot \color{blue}{\left(-x.im\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification56.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x.im \leq 3.5 \cdot 10^{+131}:\\ \;\;\;\;3 \cdot \left(x.im \cdot \left(x.re \cdot x.re\right)\right)\\ \mathbf{else}:\\ \;\;\;\;x.re - x.im \cdot x.im\\ \end{array} \]
  5. Add Preprocessing

Alternative 10: 26.3% accurate, 3.8× speedup?

\[\begin{array}{l} x.im\_m = \left|x.im\right| \\ x.im\_s = \mathsf{copysign}\left(1, x.im\right) \\ x.im\_s \cdot \left(x.re - x.im\_m \cdot x.im\_m\right) \end{array} \]
x.im\_m = (fabs.f64 x.im)
x.im\_s = (copysign.f64 #s(literal 1 binary64) x.im)
(FPCore (x.im_s x.re x.im_m)
 :precision binary64
 (* x.im_s (- x.re (* x.im_m x.im_m))))
x.im\_m = fabs(x_46_im);
x.im\_s = copysign(1.0, x_46_im);
double code(double x_46_im_s, double x_46_re, double x_46_im_m) {
	return x_46_im_s * (x_46_re - (x_46_im_m * x_46_im_m));
}
x.im\_m = abs(x_46im)
x.im\_s = copysign(1.0d0, x_46im)
real(8) function code(x_46im_s, x_46re, x_46im_m)
    real(8), intent (in) :: x_46im_s
    real(8), intent (in) :: x_46re
    real(8), intent (in) :: x_46im_m
    code = x_46im_s * (x_46re - (x_46im_m * x_46im_m))
end function
x.im\_m = Math.abs(x_46_im);
x.im\_s = Math.copySign(1.0, x_46_im);
public static double code(double x_46_im_s, double x_46_re, double x_46_im_m) {
	return x_46_im_s * (x_46_re - (x_46_im_m * x_46_im_m));
}
x.im\_m = math.fabs(x_46_im)
x.im\_s = math.copysign(1.0, x_46_im)
def code(x_46_im_s, x_46_re, x_46_im_m):
	return x_46_im_s * (x_46_re - (x_46_im_m * x_46_im_m))
x.im\_m = abs(x_46_im)
x.im\_s = copysign(1.0, x_46_im)
function code(x_46_im_s, x_46_re, x_46_im_m)
	return Float64(x_46_im_s * Float64(x_46_re - Float64(x_46_im_m * x_46_im_m)))
end
x.im\_m = abs(x_46_im);
x.im\_s = sign(x_46_im) * abs(1.0);
function tmp = code(x_46_im_s, x_46_re, x_46_im_m)
	tmp = x_46_im_s * (x_46_re - (x_46_im_m * x_46_im_m));
end
x.im\_m = N[Abs[x$46$im], $MachinePrecision]
x.im\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[x$46$im]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
code[x$46$im$95$s_, x$46$re_, x$46$im$95$m_] := N[(x$46$im$95$s * N[(x$46$re - N[(x$46$im$95$m * x$46$im$95$m), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
x.im\_m = \left|x.im\right|
\\
x.im\_s = \mathsf{copysign}\left(1, x.im\right)

\\
x.im\_s \cdot \left(x.re - x.im\_m \cdot x.im\_m\right)
\end{array}
Derivation
  1. Initial program 78.8%

    \[\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
  2. Add Preprocessing
  3. Step-by-step derivation
    1. difference-of-squares81.2%

      \[\leadsto \color{blue}{\left(\left(x.re + x.im\right) \cdot \left(x.re - x.im\right)\right)} \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
  4. Applied egg-rr81.2%

    \[\leadsto \color{blue}{\left(\left(x.re + x.im\right) \cdot \left(x.re - x.im\right)\right)} \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
  5. Simplified41.2%

    \[\leadsto \color{blue}{\left(\left(x.im + x.re\right) \cdot \left(x.re + -3\right)\right)} \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
  6. Step-by-step derivation
    1. pow141.2%

      \[\leadsto \color{blue}{{\left(\left(\left(x.im + x.re\right) \cdot \left(x.re + -3\right)\right) \cdot x.im\right)}^{1}} + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    2. associate-*l*48.0%

      \[\leadsto {\color{blue}{\left(\left(x.im + x.re\right) \cdot \left(\left(x.re + -3\right) \cdot x.im\right)\right)}}^{1} + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
    3. *-commutative48.0%

      \[\leadsto {\left(\left(x.im + x.re\right) \cdot \color{blue}{\left(x.im \cdot \left(x.re + -3\right)\right)}\right)}^{1} + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
  7. Applied egg-rr48.0%

    \[\leadsto \color{blue}{{\left(\left(x.im + x.re\right) \cdot \left(x.im \cdot \left(x.re + -3\right)\right)\right)}^{1}} + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
  8. Simplified48.0%

    \[\leadsto \color{blue}{\left(x.im + x.re\right) \cdot \left(x.im \cdot \left(x.re + -3\right)\right)} + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
  9. Step-by-step derivation
    1. +-commutative48.0%

      \[\leadsto \color{blue}{\left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re + \left(x.im + x.re\right) \cdot \left(x.im \cdot \left(x.re + -3\right)\right)} \]
    2. *-commutative48.0%

      \[\leadsto \color{blue}{x.re \cdot \left(x.re \cdot x.im + x.im \cdot x.re\right)} + \left(x.im + x.re\right) \cdot \left(x.im \cdot \left(x.re + -3\right)\right) \]
    3. fma-define48.4%

      \[\leadsto \color{blue}{\mathsf{fma}\left(x.re, x.re \cdot x.im + x.im \cdot x.re, \left(x.im + x.re\right) \cdot \left(x.im \cdot \left(x.re + -3\right)\right)\right)} \]
    4. *-commutative48.4%

      \[\leadsto \mathsf{fma}\left(x.re, \color{blue}{x.im \cdot x.re} + x.im \cdot x.re, \left(x.im + x.re\right) \cdot \left(x.im \cdot \left(x.re + -3\right)\right)\right) \]
    5. flip-+0.0%

      \[\leadsto \mathsf{fma}\left(x.re, \color{blue}{\frac{\left(x.im \cdot x.re\right) \cdot \left(x.im \cdot x.re\right) - \left(x.im \cdot x.re\right) \cdot \left(x.im \cdot x.re\right)}{x.im \cdot x.re - x.im \cdot x.re}}, \left(x.im + x.re\right) \cdot \left(x.im \cdot \left(x.re + -3\right)\right)\right) \]
    6. +-inverses0.0%

      \[\leadsto \mathsf{fma}\left(x.re, \frac{\color{blue}{0}}{x.im \cdot x.re - x.im \cdot x.re}, \left(x.im + x.re\right) \cdot \left(x.im \cdot \left(x.re + -3\right)\right)\right) \]
    7. +-inverses0.0%

      \[\leadsto \mathsf{fma}\left(x.re, \frac{0}{\color{blue}{0}}, \left(x.im + x.re\right) \cdot \left(x.im \cdot \left(x.re + -3\right)\right)\right) \]
    8. +-commutative0.0%

      \[\leadsto \mathsf{fma}\left(x.re, \frac{0}{0}, \color{blue}{\left(x.re + x.im\right)} \cdot \left(x.im \cdot \left(x.re + -3\right)\right)\right) \]
  10. Applied egg-rr0.0%

    \[\leadsto \color{blue}{\mathsf{fma}\left(x.re, \frac{0}{0}, \left(x.re + x.im\right) \cdot \left(x.im \cdot \left(x.re + -3\right)\right)\right)} \]
  11. Simplified26.7%

    \[\leadsto \color{blue}{x.re + x.im \cdot \left(\left(x.re + -3\right) \cdot \left(x.im + x.re\right)\right)} \]
  12. Taylor expanded in x.re around 0 13.7%

    \[\leadsto x.re + x.im \cdot \color{blue}{\left(-3 \cdot x.im\right)} \]
  13. Simplified13.7%

    \[\leadsto x.re + x.im \cdot \color{blue}{\left(-x.im\right)} \]
  14. Final simplification13.7%

    \[\leadsto x.re - x.im \cdot x.im \]
  15. Add Preprocessing

Alternative 11: 2.7% accurate, 19.0× speedup?

\[\begin{array}{l} x.im\_m = \left|x.im\right| \\ x.im\_s = \mathsf{copysign}\left(1, x.im\right) \\ x.im\_s \cdot -27 \end{array} \]
x.im\_m = (fabs.f64 x.im)
x.im\_s = (copysign.f64 #s(literal 1 binary64) x.im)
(FPCore (x.im_s x.re x.im_m) :precision binary64 (* x.im_s -27.0))
x.im\_m = fabs(x_46_im);
x.im\_s = copysign(1.0, x_46_im);
double code(double x_46_im_s, double x_46_re, double x_46_im_m) {
	return x_46_im_s * -27.0;
}
x.im\_m = abs(x_46im)
x.im\_s = copysign(1.0d0, x_46im)
real(8) function code(x_46im_s, x_46re, x_46im_m)
    real(8), intent (in) :: x_46im_s
    real(8), intent (in) :: x_46re
    real(8), intent (in) :: x_46im_m
    code = x_46im_s * (-27.0d0)
end function
x.im\_m = Math.abs(x_46_im);
x.im\_s = Math.copySign(1.0, x_46_im);
public static double code(double x_46_im_s, double x_46_re, double x_46_im_m) {
	return x_46_im_s * -27.0;
}
x.im\_m = math.fabs(x_46_im)
x.im\_s = math.copysign(1.0, x_46_im)
def code(x_46_im_s, x_46_re, x_46_im_m):
	return x_46_im_s * -27.0
x.im\_m = abs(x_46_im)
x.im\_s = copysign(1.0, x_46_im)
function code(x_46_im_s, x_46_re, x_46_im_m)
	return Float64(x_46_im_s * -27.0)
end
x.im\_m = abs(x_46_im);
x.im\_s = sign(x_46_im) * abs(1.0);
function tmp = code(x_46_im_s, x_46_re, x_46_im_m)
	tmp = x_46_im_s * -27.0;
end
x.im\_m = N[Abs[x$46$im], $MachinePrecision]
x.im\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[x$46$im]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
code[x$46$im$95$s_, x$46$re_, x$46$im$95$m_] := N[(x$46$im$95$s * -27.0), $MachinePrecision]
\begin{array}{l}
x.im\_m = \left|x.im\right|
\\
x.im\_s = \mathsf{copysign}\left(1, x.im\right)

\\
x.im\_s \cdot -27
\end{array}
Derivation
  1. Initial program 78.8%

    \[\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
  2. Add Preprocessing
  3. Step-by-step derivation
    1. difference-of-squares81.2%

      \[\leadsto \color{blue}{\left(\left(x.re + x.im\right) \cdot \left(x.re - x.im\right)\right)} \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
  4. Applied egg-rr81.2%

    \[\leadsto \color{blue}{\left(\left(x.re + x.im\right) \cdot \left(x.re - x.im\right)\right)} \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
  5. Simplified41.2%

    \[\leadsto \color{blue}{\left(\left(x.im + x.re\right) \cdot \left(x.re + -3\right)\right)} \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
  6. Taylor expanded in x.re around 0 34.6%

    \[\leadsto \color{blue}{\left(-3 \cdot x.im\right)} \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
  7. Simplified34.6%

    \[\leadsto \color{blue}{\left(x.im \cdot -3\right)} \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re \]
  8. Taylor expanded in x.re around 0 33.6%

    \[\leadsto \left(x.im \cdot -3\right) \cdot x.im + \color{blue}{2 \cdot \left(x.im \cdot {x.re}^{2}\right)} \]
  9. Simplified12.9%

    \[\leadsto \left(x.im \cdot -3\right) \cdot x.im + \color{blue}{-3} \]
  10. Taylor expanded in x.im around 0 2.8%

    \[\leadsto \color{blue}{-3} \]
  11. Simplified2.8%

    \[\leadsto \color{blue}{-27} \]
  12. Add Preprocessing

Developer Target 1: 91.2% accurate, 1.1× speedup?

\[\begin{array}{l} \\ \left(x.re \cdot x.im\right) \cdot \left(2 \cdot x.re\right) + \left(x.im \cdot \left(x.re - x.im\right)\right) \cdot \left(x.re + x.im\right) \end{array} \]
(FPCore (x.re x.im)
 :precision binary64
 (+ (* (* x.re x.im) (* 2.0 x.re)) (* (* x.im (- x.re x.im)) (+ x.re x.im))))
double code(double x_46_re, double x_46_im) {
	return ((x_46_re * x_46_im) * (2.0 * x_46_re)) + ((x_46_im * (x_46_re - x_46_im)) * (x_46_re + x_46_im));
}
real(8) function code(x_46re, x_46im)
    real(8), intent (in) :: x_46re
    real(8), intent (in) :: x_46im
    code = ((x_46re * x_46im) * (2.0d0 * x_46re)) + ((x_46im * (x_46re - x_46im)) * (x_46re + x_46im))
end function
public static double code(double x_46_re, double x_46_im) {
	return ((x_46_re * x_46_im) * (2.0 * x_46_re)) + ((x_46_im * (x_46_re - x_46_im)) * (x_46_re + x_46_im));
}
def code(x_46_re, x_46_im):
	return ((x_46_re * x_46_im) * (2.0 * x_46_re)) + ((x_46_im * (x_46_re - x_46_im)) * (x_46_re + x_46_im))
function code(x_46_re, x_46_im)
	return Float64(Float64(Float64(x_46_re * x_46_im) * Float64(2.0 * x_46_re)) + Float64(Float64(x_46_im * Float64(x_46_re - x_46_im)) * Float64(x_46_re + x_46_im)))
end
function tmp = code(x_46_re, x_46_im)
	tmp = ((x_46_re * x_46_im) * (2.0 * x_46_re)) + ((x_46_im * (x_46_re - x_46_im)) * (x_46_re + x_46_im));
end
code[x$46$re_, x$46$im_] := N[(N[(N[(x$46$re * x$46$im), $MachinePrecision] * N[(2.0 * x$46$re), $MachinePrecision]), $MachinePrecision] + N[(N[(x$46$im * N[(x$46$re - x$46$im), $MachinePrecision]), $MachinePrecision] * N[(x$46$re + x$46$im), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\left(x.re \cdot x.im\right) \cdot \left(2 \cdot x.re\right) + \left(x.im \cdot \left(x.re - x.im\right)\right) \cdot \left(x.re + x.im\right)
\end{array}

Reproduce

?
herbie shell --seed 2024157 
(FPCore (x.re x.im)
  :name "math.cube on complex, imaginary part"
  :precision binary64

  :alt
  (! :herbie-platform default (+ (* (* x.re x.im) (* 2 x.re)) (* (* x.im (- x.re x.im)) (+ x.re x.im))))

  (+ (* (- (* x.re x.re) (* x.im x.im)) x.im) (* (+ (* x.re x.im) (* x.im x.re)) x.re)))