math.cube on complex, real part

Percentage Accurate: 82.3% → 96.9%
Time: 5.9s
Alternatives: 6
Speedup: 1.5×

Specification

?
\[\begin{array}{l} \\ \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.im \end{array} \]
(FPCore (x.re x.im)
 :precision binary64
 (-
  (* (- (* x.re x.re) (* x.im x.im)) x.re)
  (* (+ (* x.re x.im) (* x.im x.re)) x.im)))
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_re) - (((x_46_re * x_46_im) + (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_46re) - (x_46im * x_46im)) * x_46re) - (((x_46re * x_46im) + (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_re) - (x_46_im * x_46_im)) * x_46_re) - (((x_46_re * x_46_im) + (x_46_im * x_46_re)) * x_46_im);
}
def code(x_46_re, x_46_im):
	return (((x_46_re * x_46_re) - (x_46_im * x_46_im)) * x_46_re) - (((x_46_re * x_46_im) + (x_46_im * x_46_re)) * x_46_im)
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_re) - Float64(Float64(Float64(x_46_re * x_46_im) + Float64(x_46_im * x_46_re)) * x_46_im))
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_re) - (((x_46_re * x_46_im) + (x_46_im * x_46_re)) * x_46_im);
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$46$re), $MachinePrecision] - N[(N[(N[(x$46$re * x$46$im), $MachinePrecision] + N[(x$46$im * x$46$re), $MachinePrecision]), $MachinePrecision] * x$46$im), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.im
\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 6 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: 82.3% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.im \end{array} \]
(FPCore (x.re x.im)
 :precision binary64
 (-
  (* (- (* x.re x.re) (* x.im x.im)) x.re)
  (* (+ (* x.re x.im) (* x.im x.re)) x.im)))
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_re) - (((x_46_re * x_46_im) + (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_46re) - (x_46im * x_46im)) * x_46re) - (((x_46re * x_46im) + (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_re) - (x_46_im * x_46_im)) * x_46_re) - (((x_46_re * x_46_im) + (x_46_im * x_46_re)) * x_46_im);
}
def code(x_46_re, x_46_im):
	return (((x_46_re * x_46_re) - (x_46_im * x_46_im)) * x_46_re) - (((x_46_re * x_46_im) + (x_46_im * x_46_re)) * x_46_im)
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_re) - Float64(Float64(Float64(x_46_re * x_46_im) + Float64(x_46_im * x_46_re)) * x_46_im))
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_re) - (((x_46_re * x_46_im) + (x_46_im * x_46_re)) * x_46_im);
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$46$re), $MachinePrecision] - N[(N[(N[(x$46$re * x$46$im), $MachinePrecision] + N[(x$46$im * x$46$re), $MachinePrecision]), $MachinePrecision] * x$46$im), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

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

Alternative 1: 96.9% accurate, 0.2× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := x.re \cdot \left(x.re \cdot x.re\right)\\ \mathbf{if}\;x.re \leq -1 \cdot 10^{+263}:\\ \;\;\;\;t_0\\ \mathbf{elif}\;x.re \leq -2.5 \cdot 10^{-25}:\\ \;\;\;\;x.re \cdot \mathsf{fma}\left(x.re, x.re, x.im \cdot \left(x.im \cdot -3\right)\right)\\ \mathbf{elif}\;x.re \leq 2.55 \cdot 10^{+219}:\\ \;\;\;\;\mathsf{fma}\left(x.re \cdot \left(x.re + x.im\right), x.re - x.im, x.im \cdot \left(x.re \cdot \left(\left(-x.im\right) - x.im\right)\right)\right)\\ \mathbf{else}:\\ \;\;\;\;t_0\\ \end{array} \end{array} \]
(FPCore (x.re x.im)
 :precision binary64
 (let* ((t_0 (* x.re (* x.re x.re))))
   (if (<= x.re -1e+263)
     t_0
     (if (<= x.re -2.5e-25)
       (* x.re (fma x.re x.re (* x.im (* x.im -3.0))))
       (if (<= x.re 2.55e+219)
         (fma
          (* x.re (+ x.re x.im))
          (- x.re x.im)
          (* x.im (* x.re (- (- x.im) x.im))))
         t_0)))))
double code(double x_46_re, double x_46_im) {
	double t_0 = x_46_re * (x_46_re * x_46_re);
	double tmp;
	if (x_46_re <= -1e+263) {
		tmp = t_0;
	} else if (x_46_re <= -2.5e-25) {
		tmp = x_46_re * fma(x_46_re, x_46_re, (x_46_im * (x_46_im * -3.0)));
	} else if (x_46_re <= 2.55e+219) {
		tmp = fma((x_46_re * (x_46_re + x_46_im)), (x_46_re - x_46_im), (x_46_im * (x_46_re * (-x_46_im - x_46_im))));
	} else {
		tmp = t_0;
	}
	return tmp;
}
function code(x_46_re, x_46_im)
	t_0 = Float64(x_46_re * Float64(x_46_re * x_46_re))
	tmp = 0.0
	if (x_46_re <= -1e+263)
		tmp = t_0;
	elseif (x_46_re <= -2.5e-25)
		tmp = Float64(x_46_re * fma(x_46_re, x_46_re, Float64(x_46_im * Float64(x_46_im * -3.0))));
	elseif (x_46_re <= 2.55e+219)
		tmp = fma(Float64(x_46_re * Float64(x_46_re + x_46_im)), Float64(x_46_re - x_46_im), Float64(x_46_im * Float64(x_46_re * Float64(Float64(-x_46_im) - x_46_im))));
	else
		tmp = t_0;
	end
	return tmp
end
code[x$46$re_, x$46$im_] := Block[{t$95$0 = N[(x$46$re * N[(x$46$re * x$46$re), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[x$46$re, -1e+263], t$95$0, If[LessEqual[x$46$re, -2.5e-25], N[(x$46$re * N[(x$46$re * x$46$re + N[(x$46$im * N[(x$46$im * -3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[x$46$re, 2.55e+219], N[(N[(x$46$re * N[(x$46$re + x$46$im), $MachinePrecision]), $MachinePrecision] * N[(x$46$re - x$46$im), $MachinePrecision] + N[(x$46$im * N[(x$46$re * N[((-x$46$im) - x$46$im), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$0]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := x.re \cdot \left(x.re \cdot x.re\right)\\
\mathbf{if}\;x.re \leq -1 \cdot 10^{+263}:\\
\;\;\;\;t_0\\

\mathbf{elif}\;x.re \leq -2.5 \cdot 10^{-25}:\\
\;\;\;\;x.re \cdot \mathsf{fma}\left(x.re, x.re, x.im \cdot \left(x.im \cdot -3\right)\right)\\

\mathbf{elif}\;x.re \leq 2.55 \cdot 10^{+219}:\\
\;\;\;\;\mathsf{fma}\left(x.re \cdot \left(x.re + x.im\right), x.re - x.im, x.im \cdot \left(x.re \cdot \left(\left(-x.im\right) - x.im\right)\right)\right)\\

\mathbf{else}:\\
\;\;\;\;t_0\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if x.re < -1.00000000000000002e263 or 2.54999999999999997e219 < x.re

    1. Initial program 56.7%

      \[\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.im \]
    2. Step-by-step derivation
      1. *-commutative56.7%

        \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \left(x.re \cdot x.im + \color{blue}{x.re \cdot x.im}\right) \cdot x.im \]
      2. distribute-lft-out56.7%

        \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \color{blue}{\left(x.re \cdot \left(x.im + x.im\right)\right)} \cdot x.im \]
      3. associate-*l*56.7%

        \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \color{blue}{x.re \cdot \left(\left(x.im + x.im\right) \cdot x.im\right)} \]
      4. *-commutative56.7%

        \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \color{blue}{\left(\left(x.im + x.im\right) \cdot x.im\right) \cdot x.re} \]
      5. distribute-rgt-out--60.0%

        \[\leadsto \color{blue}{x.re \cdot \left(\left(x.re \cdot x.re - x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)} \]
      6. associate--l-60.0%

        \[\leadsto x.re \cdot \color{blue}{\left(x.re \cdot x.re - \left(x.im \cdot x.im + \left(x.im + x.im\right) \cdot x.im\right)\right)} \]
      7. associate--l-60.0%

        \[\leadsto x.re \cdot \color{blue}{\left(\left(x.re \cdot x.re - x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)} \]
      8. sub-neg60.0%

        \[\leadsto x.re \cdot \left(\color{blue}{\left(x.re \cdot x.re + \left(-x.im \cdot x.im\right)\right)} - \left(x.im + x.im\right) \cdot x.im\right) \]
      9. associate--l+60.0%

        \[\leadsto x.re \cdot \color{blue}{\left(x.re \cdot x.re + \left(\left(-x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)\right)} \]
      10. fma-udef60.0%

        \[\leadsto x.re \cdot \color{blue}{\mathsf{fma}\left(x.re, x.re, \left(-x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)} \]
      11. neg-mul-160.0%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, \color{blue}{-1 \cdot \left(x.im \cdot x.im\right)} - \left(x.im + x.im\right) \cdot x.im\right) \]
      12. count-260.0%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, -1 \cdot \left(x.im \cdot x.im\right) - \color{blue}{\left(2 \cdot x.im\right)} \cdot x.im\right) \]
      13. associate-*l*60.0%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, -1 \cdot \left(x.im \cdot x.im\right) - \color{blue}{2 \cdot \left(x.im \cdot x.im\right)}\right) \]
      14. distribute-rgt-out--60.0%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, \color{blue}{\left(x.im \cdot x.im\right) \cdot \left(-1 - 2\right)}\right) \]
      15. associate-*r*60.0%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, \color{blue}{x.im \cdot \left(x.im \cdot \left(-1 - 2\right)\right)}\right) \]
      16. metadata-eval60.0%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, x.im \cdot \left(x.im \cdot \color{blue}{-3}\right)\right) \]
    3. Simplified60.0%

      \[\leadsto \color{blue}{x.re \cdot \mathsf{fma}\left(x.re, x.re, x.im \cdot \left(x.im \cdot -3\right)\right)} \]
    4. Taylor expanded in x.re around inf 100.0%

      \[\leadsto x.re \cdot \color{blue}{{x.re}^{2}} \]
    5. Step-by-step derivation
      1. unpow2100.0%

        \[\leadsto x.re \cdot \color{blue}{\left(x.re \cdot x.re\right)} \]
    6. Simplified100.0%

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

    if -1.00000000000000002e263 < x.re < -2.49999999999999981e-25

    1. Initial program 73.7%

      \[\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.im \]
    2. Step-by-step derivation
      1. *-commutative73.7%

        \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \left(x.re \cdot x.im + \color{blue}{x.re \cdot x.im}\right) \cdot x.im \]
      2. distribute-lft-out73.7%

        \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \color{blue}{\left(x.re \cdot \left(x.im + x.im\right)\right)} \cdot x.im \]
      3. associate-*l*73.7%

        \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \color{blue}{x.re \cdot \left(\left(x.im + x.im\right) \cdot x.im\right)} \]
      4. *-commutative73.7%

        \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \color{blue}{\left(\left(x.im + x.im\right) \cdot x.im\right) \cdot x.re} \]
      5. distribute-rgt-out--81.0%

        \[\leadsto \color{blue}{x.re \cdot \left(\left(x.re \cdot x.re - x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)} \]
      6. associate--l-81.0%

        \[\leadsto x.re \cdot \color{blue}{\left(x.re \cdot x.re - \left(x.im \cdot x.im + \left(x.im + x.im\right) \cdot x.im\right)\right)} \]
      7. associate--l-81.0%

        \[\leadsto x.re \cdot \color{blue}{\left(\left(x.re \cdot x.re - x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)} \]
      8. sub-neg81.0%

        \[\leadsto x.re \cdot \left(\color{blue}{\left(x.re \cdot x.re + \left(-x.im \cdot x.im\right)\right)} - \left(x.im + x.im\right) \cdot x.im\right) \]
      9. associate--l+81.0%

        \[\leadsto x.re \cdot \color{blue}{\left(x.re \cdot x.re + \left(\left(-x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)\right)} \]
      10. fma-udef96.9%

        \[\leadsto x.re \cdot \color{blue}{\mathsf{fma}\left(x.re, x.re, \left(-x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)} \]
      11. neg-mul-196.9%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, \color{blue}{-1 \cdot \left(x.im \cdot x.im\right)} - \left(x.im + x.im\right) \cdot x.im\right) \]
      12. count-296.9%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, -1 \cdot \left(x.im \cdot x.im\right) - \color{blue}{\left(2 \cdot x.im\right)} \cdot x.im\right) \]
      13. associate-*l*96.9%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, -1 \cdot \left(x.im \cdot x.im\right) - \color{blue}{2 \cdot \left(x.im \cdot x.im\right)}\right) \]
      14. distribute-rgt-out--96.9%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, \color{blue}{\left(x.im \cdot x.im\right) \cdot \left(-1 - 2\right)}\right) \]
      15. associate-*r*96.9%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, \color{blue}{x.im \cdot \left(x.im \cdot \left(-1 - 2\right)\right)}\right) \]
      16. metadata-eval96.9%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, x.im \cdot \left(x.im \cdot \color{blue}{-3}\right)\right) \]
    3. Simplified96.9%

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

    if -2.49999999999999981e-25 < x.re < 2.54999999999999997e219

    1. Initial program 91.3%

      \[\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.im \]
    2. Step-by-step derivation
      1. *-commutative91.3%

        \[\leadsto \color{blue}{x.re \cdot \left(x.re \cdot x.re - x.im \cdot x.im\right)} - \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.im \]
      2. *-commutative91.3%

        \[\leadsto x.re \cdot \left(x.re \cdot x.re - x.im \cdot x.im\right) - \color{blue}{x.im \cdot \left(x.re \cdot x.im + x.im \cdot x.re\right)} \]
      3. *-commutative91.3%

        \[\leadsto x.re \cdot \left(x.re \cdot x.re - x.im \cdot x.im\right) - x.im \cdot \left(x.re \cdot x.im + \color{blue}{x.re \cdot x.im}\right) \]
      4. distribute-lft-out91.3%

        \[\leadsto x.re \cdot \left(x.re \cdot x.re - x.im \cdot x.im\right) - x.im \cdot \color{blue}{\left(x.re \cdot \left(x.im + x.im\right)\right)} \]
    3. Simplified91.3%

      \[\leadsto \color{blue}{x.re \cdot \left(x.re \cdot x.re - x.im \cdot x.im\right) - x.im \cdot \left(x.re \cdot \left(x.im + x.im\right)\right)} \]
    4. Step-by-step derivation
      1. difference-of-squares93.2%

        \[\leadsto x.re \cdot \color{blue}{\left(\left(x.re + x.im\right) \cdot \left(x.re - x.im\right)\right)} - x.im \cdot \left(x.re \cdot \left(x.im + x.im\right)\right) \]
    5. Applied egg-rr93.2%

      \[\leadsto x.re \cdot \color{blue}{\left(\left(x.re + x.im\right) \cdot \left(x.re - x.im\right)\right)} - x.im \cdot \left(x.re \cdot \left(x.im + x.im\right)\right) \]
    6. Step-by-step derivation
      1. associate-*r*99.1%

        \[\leadsto \color{blue}{\left(x.re \cdot \left(x.re + x.im\right)\right) \cdot \left(x.re - x.im\right)} - x.im \cdot \left(x.re \cdot \left(x.im + x.im\right)\right) \]
      2. fma-neg99.1%

        \[\leadsto \color{blue}{\mathsf{fma}\left(x.re \cdot \left(x.re + x.im\right), x.re - x.im, -x.im \cdot \left(x.re \cdot \left(x.im + x.im\right)\right)\right)} \]
      3. distribute-rgt-neg-in99.1%

        \[\leadsto \mathsf{fma}\left(x.re \cdot \left(x.re + x.im\right), x.re - x.im, \color{blue}{x.im \cdot \left(-x.re \cdot \left(x.im + x.im\right)\right)}\right) \]
      4. distribute-rgt-neg-in99.1%

        \[\leadsto \mathsf{fma}\left(x.re \cdot \left(x.re + x.im\right), x.re - x.im, x.im \cdot \color{blue}{\left(x.re \cdot \left(-\left(x.im + x.im\right)\right)\right)}\right) \]
    7. Applied egg-rr99.1%

      \[\leadsto \color{blue}{\mathsf{fma}\left(x.re \cdot \left(x.re + x.im\right), x.re - x.im, x.im \cdot \left(x.re \cdot \left(-\left(x.im + x.im\right)\right)\right)\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification98.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x.re \leq -1 \cdot 10^{+263}:\\ \;\;\;\;x.re \cdot \left(x.re \cdot x.re\right)\\ \mathbf{elif}\;x.re \leq -2.5 \cdot 10^{-25}:\\ \;\;\;\;x.re \cdot \mathsf{fma}\left(x.re, x.re, x.im \cdot \left(x.im \cdot -3\right)\right)\\ \mathbf{elif}\;x.re \leq 2.55 \cdot 10^{+219}:\\ \;\;\;\;\mathsf{fma}\left(x.re \cdot \left(x.re + x.im\right), x.re - x.im, x.im \cdot \left(x.re \cdot \left(\left(-x.im\right) - x.im\right)\right)\right)\\ \mathbf{else}:\\ \;\;\;\;x.re \cdot \left(x.re \cdot x.re\right)\\ \end{array} \]

Alternative 2: 96.7% accurate, 0.2× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := x.re \cdot \left(x.re \cdot x.re\right)\\ \mathbf{if}\;x.re \leq -1 \cdot 10^{+262}:\\ \;\;\;\;t_0\\ \mathbf{elif}\;x.re \leq -5 \cdot 10^{-81}:\\ \;\;\;\;x.re \cdot \mathsf{fma}\left(x.re, x.re, x.im \cdot \left(x.im \cdot -3\right)\right)\\ \mathbf{elif}\;x.re \leq 1.3 \cdot 10^{+218}:\\ \;\;\;\;\left(x.re \cdot \left(x.re + x.im\right)\right) \cdot \left(x.re - x.im\right) - x.im \cdot \left(x.re \cdot \left(x.im + x.im\right)\right)\\ \mathbf{else}:\\ \;\;\;\;t_0\\ \end{array} \end{array} \]
(FPCore (x.re x.im)
 :precision binary64
 (let* ((t_0 (* x.re (* x.re x.re))))
   (if (<= x.re -1e+262)
     t_0
     (if (<= x.re -5e-81)
       (* x.re (fma x.re x.re (* x.im (* x.im -3.0))))
       (if (<= x.re 1.3e+218)
         (-
          (* (* x.re (+ x.re x.im)) (- x.re x.im))
          (* x.im (* x.re (+ x.im x.im))))
         t_0)))))
double code(double x_46_re, double x_46_im) {
	double t_0 = x_46_re * (x_46_re * x_46_re);
	double tmp;
	if (x_46_re <= -1e+262) {
		tmp = t_0;
	} else if (x_46_re <= -5e-81) {
		tmp = x_46_re * fma(x_46_re, x_46_re, (x_46_im * (x_46_im * -3.0)));
	} else if (x_46_re <= 1.3e+218) {
		tmp = ((x_46_re * (x_46_re + x_46_im)) * (x_46_re - x_46_im)) - (x_46_im * (x_46_re * (x_46_im + x_46_im)));
	} else {
		tmp = t_0;
	}
	return tmp;
}
function code(x_46_re, x_46_im)
	t_0 = Float64(x_46_re * Float64(x_46_re * x_46_re))
	tmp = 0.0
	if (x_46_re <= -1e+262)
		tmp = t_0;
	elseif (x_46_re <= -5e-81)
		tmp = Float64(x_46_re * fma(x_46_re, x_46_re, Float64(x_46_im * Float64(x_46_im * -3.0))));
	elseif (x_46_re <= 1.3e+218)
		tmp = Float64(Float64(Float64(x_46_re * Float64(x_46_re + x_46_im)) * Float64(x_46_re - x_46_im)) - Float64(x_46_im * Float64(x_46_re * Float64(x_46_im + x_46_im))));
	else
		tmp = t_0;
	end
	return tmp
end
code[x$46$re_, x$46$im_] := Block[{t$95$0 = N[(x$46$re * N[(x$46$re * x$46$re), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[x$46$re, -1e+262], t$95$0, If[LessEqual[x$46$re, -5e-81], N[(x$46$re * N[(x$46$re * x$46$re + N[(x$46$im * N[(x$46$im * -3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[x$46$re, 1.3e+218], N[(N[(N[(x$46$re * N[(x$46$re + x$46$im), $MachinePrecision]), $MachinePrecision] * N[(x$46$re - x$46$im), $MachinePrecision]), $MachinePrecision] - N[(x$46$im * N[(x$46$re * N[(x$46$im + x$46$im), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$0]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := x.re \cdot \left(x.re \cdot x.re\right)\\
\mathbf{if}\;x.re \leq -1 \cdot 10^{+262}:\\
\;\;\;\;t_0\\

\mathbf{elif}\;x.re \leq -5 \cdot 10^{-81}:\\
\;\;\;\;x.re \cdot \mathsf{fma}\left(x.re, x.re, x.im \cdot \left(x.im \cdot -3\right)\right)\\

\mathbf{elif}\;x.re \leq 1.3 \cdot 10^{+218}:\\
\;\;\;\;\left(x.re \cdot \left(x.re + x.im\right)\right) \cdot \left(x.re - x.im\right) - x.im \cdot \left(x.re \cdot \left(x.im + x.im\right)\right)\\

\mathbf{else}:\\
\;\;\;\;t_0\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if x.re < -1e262 or 1.30000000000000001e218 < x.re

    1. Initial program 56.7%

      \[\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.im \]
    2. Step-by-step derivation
      1. *-commutative56.7%

        \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \left(x.re \cdot x.im + \color{blue}{x.re \cdot x.im}\right) \cdot x.im \]
      2. distribute-lft-out56.7%

        \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \color{blue}{\left(x.re \cdot \left(x.im + x.im\right)\right)} \cdot x.im \]
      3. associate-*l*56.7%

        \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \color{blue}{x.re \cdot \left(\left(x.im + x.im\right) \cdot x.im\right)} \]
      4. *-commutative56.7%

        \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \color{blue}{\left(\left(x.im + x.im\right) \cdot x.im\right) \cdot x.re} \]
      5. distribute-rgt-out--60.0%

        \[\leadsto \color{blue}{x.re \cdot \left(\left(x.re \cdot x.re - x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)} \]
      6. associate--l-60.0%

        \[\leadsto x.re \cdot \color{blue}{\left(x.re \cdot x.re - \left(x.im \cdot x.im + \left(x.im + x.im\right) \cdot x.im\right)\right)} \]
      7. associate--l-60.0%

        \[\leadsto x.re \cdot \color{blue}{\left(\left(x.re \cdot x.re - x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)} \]
      8. sub-neg60.0%

        \[\leadsto x.re \cdot \left(\color{blue}{\left(x.re \cdot x.re + \left(-x.im \cdot x.im\right)\right)} - \left(x.im + x.im\right) \cdot x.im\right) \]
      9. associate--l+60.0%

        \[\leadsto x.re \cdot \color{blue}{\left(x.re \cdot x.re + \left(\left(-x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)\right)} \]
      10. fma-udef60.0%

        \[\leadsto x.re \cdot \color{blue}{\mathsf{fma}\left(x.re, x.re, \left(-x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)} \]
      11. neg-mul-160.0%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, \color{blue}{-1 \cdot \left(x.im \cdot x.im\right)} - \left(x.im + x.im\right) \cdot x.im\right) \]
      12. count-260.0%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, -1 \cdot \left(x.im \cdot x.im\right) - \color{blue}{\left(2 \cdot x.im\right)} \cdot x.im\right) \]
      13. associate-*l*60.0%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, -1 \cdot \left(x.im \cdot x.im\right) - \color{blue}{2 \cdot \left(x.im \cdot x.im\right)}\right) \]
      14. distribute-rgt-out--60.0%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, \color{blue}{\left(x.im \cdot x.im\right) \cdot \left(-1 - 2\right)}\right) \]
      15. associate-*r*60.0%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, \color{blue}{x.im \cdot \left(x.im \cdot \left(-1 - 2\right)\right)}\right) \]
      16. metadata-eval60.0%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, x.im \cdot \left(x.im \cdot \color{blue}{-3}\right)\right) \]
    3. Simplified60.0%

      \[\leadsto \color{blue}{x.re \cdot \mathsf{fma}\left(x.re, x.re, x.im \cdot \left(x.im \cdot -3\right)\right)} \]
    4. Taylor expanded in x.re around inf 100.0%

      \[\leadsto x.re \cdot \color{blue}{{x.re}^{2}} \]
    5. Step-by-step derivation
      1. unpow2100.0%

        \[\leadsto x.re \cdot \color{blue}{\left(x.re \cdot x.re\right)} \]
    6. Simplified100.0%

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

    if -1e262 < x.re < -4.99999999999999981e-81

    1. Initial program 76.7%

      \[\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.im \]
    2. Step-by-step derivation
      1. *-commutative76.7%

        \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \left(x.re \cdot x.im + \color{blue}{x.re \cdot x.im}\right) \cdot x.im \]
      2. distribute-lft-out76.7%

        \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \color{blue}{\left(x.re \cdot \left(x.im + x.im\right)\right)} \cdot x.im \]
      3. associate-*l*76.7%

        \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \color{blue}{x.re \cdot \left(\left(x.im + x.im\right) \cdot x.im\right)} \]
      4. *-commutative76.7%

        \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \color{blue}{\left(\left(x.im + x.im\right) \cdot x.im\right) \cdot x.re} \]
      5. distribute-rgt-out--83.1%

        \[\leadsto \color{blue}{x.re \cdot \left(\left(x.re \cdot x.re - x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)} \]
      6. associate--l-83.1%

        \[\leadsto x.re \cdot \color{blue}{\left(x.re \cdot x.re - \left(x.im \cdot x.im + \left(x.im + x.im\right) \cdot x.im\right)\right)} \]
      7. associate--l-83.1%

        \[\leadsto x.re \cdot \color{blue}{\left(\left(x.re \cdot x.re - x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)} \]
      8. sub-neg83.1%

        \[\leadsto x.re \cdot \left(\color{blue}{\left(x.re \cdot x.re + \left(-x.im \cdot x.im\right)\right)} - \left(x.im + x.im\right) \cdot x.im\right) \]
      9. associate--l+83.1%

        \[\leadsto x.re \cdot \color{blue}{\left(x.re \cdot x.re + \left(\left(-x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)\right)} \]
      10. fma-udef97.2%

        \[\leadsto x.re \cdot \color{blue}{\mathsf{fma}\left(x.re, x.re, \left(-x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)} \]
      11. neg-mul-197.2%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, \color{blue}{-1 \cdot \left(x.im \cdot x.im\right)} - \left(x.im + x.im\right) \cdot x.im\right) \]
      12. count-297.2%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, -1 \cdot \left(x.im \cdot x.im\right) - \color{blue}{\left(2 \cdot x.im\right)} \cdot x.im\right) \]
      13. associate-*l*97.2%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, -1 \cdot \left(x.im \cdot x.im\right) - \color{blue}{2 \cdot \left(x.im \cdot x.im\right)}\right) \]
      14. distribute-rgt-out--97.2%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, \color{blue}{\left(x.im \cdot x.im\right) \cdot \left(-1 - 2\right)}\right) \]
      15. associate-*r*97.2%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, \color{blue}{x.im \cdot \left(x.im \cdot \left(-1 - 2\right)\right)}\right) \]
      16. metadata-eval97.2%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, x.im \cdot \left(x.im \cdot \color{blue}{-3}\right)\right) \]
    3. Simplified97.2%

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

    if -4.99999999999999981e-81 < x.re < 1.30000000000000001e218

    1. Initial program 90.9%

      \[\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.im \]
    2. Step-by-step derivation
      1. *-commutative90.9%

        \[\leadsto \color{blue}{x.re \cdot \left(x.re \cdot x.re - x.im \cdot x.im\right)} - \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.im \]
      2. *-commutative90.9%

        \[\leadsto x.re \cdot \left(x.re \cdot x.re - x.im \cdot x.im\right) - \color{blue}{x.im \cdot \left(x.re \cdot x.im + x.im \cdot x.re\right)} \]
      3. *-commutative90.9%

        \[\leadsto x.re \cdot \left(x.re \cdot x.re - x.im \cdot x.im\right) - x.im \cdot \left(x.re \cdot x.im + \color{blue}{x.re \cdot x.im}\right) \]
      4. distribute-lft-out90.9%

        \[\leadsto x.re \cdot \left(x.re \cdot x.re - x.im \cdot x.im\right) - x.im \cdot \color{blue}{\left(x.re \cdot \left(x.im + x.im\right)\right)} \]
    3. Simplified90.9%

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

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

      \[\leadsto x.re \cdot \color{blue}{\left(\left(x.re + x.im\right) \cdot \left(x.re - x.im\right)\right)} - x.im \cdot \left(x.re \cdot \left(x.im + x.im\right)\right) \]
    6. Step-by-step derivation
      1. associate-*r*99.1%

        \[\leadsto \color{blue}{\left(x.re \cdot \left(x.re + x.im\right)\right) \cdot \left(x.re - x.im\right)} - x.im \cdot \left(x.re \cdot \left(x.im + x.im\right)\right) \]
      2. fma-neg99.1%

        \[\leadsto \color{blue}{\mathsf{fma}\left(x.re \cdot \left(x.re + x.im\right), x.re - x.im, -x.im \cdot \left(x.re \cdot \left(x.im + x.im\right)\right)\right)} \]
      3. distribute-rgt-neg-in99.1%

        \[\leadsto \mathsf{fma}\left(x.re \cdot \left(x.re + x.im\right), x.re - x.im, \color{blue}{x.im \cdot \left(-x.re \cdot \left(x.im + x.im\right)\right)}\right) \]
      4. distribute-rgt-neg-in99.1%

        \[\leadsto \mathsf{fma}\left(x.re \cdot \left(x.re + x.im\right), x.re - x.im, x.im \cdot \color{blue}{\left(x.re \cdot \left(-\left(x.im + x.im\right)\right)\right)}\right) \]
    7. Applied egg-rr99.1%

      \[\leadsto \color{blue}{\mathsf{fma}\left(x.re \cdot \left(x.re + x.im\right), x.re - x.im, x.im \cdot \left(x.re \cdot \left(-\left(x.im + x.im\right)\right)\right)\right)} \]
    8. Step-by-step derivation
      1. fma-udef99.1%

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

      \[\leadsto \color{blue}{\left(x.re \cdot \left(x.re + x.im\right)\right) \cdot \left(x.re - x.im\right) + x.im \cdot \left(x.re \cdot \left(-\left(x.im + x.im\right)\right)\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification98.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x.re \leq -1 \cdot 10^{+262}:\\ \;\;\;\;x.re \cdot \left(x.re \cdot x.re\right)\\ \mathbf{elif}\;x.re \leq -5 \cdot 10^{-81}:\\ \;\;\;\;x.re \cdot \mathsf{fma}\left(x.re, x.re, x.im \cdot \left(x.im \cdot -3\right)\right)\\ \mathbf{elif}\;x.re \leq 1.3 \cdot 10^{+218}:\\ \;\;\;\;\left(x.re \cdot \left(x.re + x.im\right)\right) \cdot \left(x.re - x.im\right) - x.im \cdot \left(x.re \cdot \left(x.im + x.im\right)\right)\\ \mathbf{else}:\\ \;\;\;\;x.re \cdot \left(x.re \cdot x.re\right)\\ \end{array} \]

Alternative 3: 95.7% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x.re \leq -5.8 \cdot 10^{+228} \lor \neg \left(x.re \leq 9 \cdot 10^{+222}\right):\\ \;\;\;\;x.re \cdot \left(x.re \cdot x.re\right)\\ \mathbf{else}:\\ \;\;\;\;\left(x.re \cdot \left(x.re + x.im\right)\right) \cdot \left(x.re - x.im\right) - x.im \cdot \left(x.re \cdot \left(x.im + x.im\right)\right)\\ \end{array} \end{array} \]
(FPCore (x.re x.im)
 :precision binary64
 (if (or (<= x.re -5.8e+228) (not (<= x.re 9e+222)))
   (* x.re (* x.re x.re))
   (-
    (* (* x.re (+ x.re x.im)) (- x.re x.im))
    (* x.im (* x.re (+ x.im x.im))))))
double code(double x_46_re, double x_46_im) {
	double tmp;
	if ((x_46_re <= -5.8e+228) || !(x_46_re <= 9e+222)) {
		tmp = x_46_re * (x_46_re * x_46_re);
	} else {
		tmp = ((x_46_re * (x_46_re + x_46_im)) * (x_46_re - x_46_im)) - (x_46_im * (x_46_re * (x_46_im + x_46_im)));
	}
	return tmp;
}
real(8) function code(x_46re, x_46im)
    real(8), intent (in) :: x_46re
    real(8), intent (in) :: x_46im
    real(8) :: tmp
    if ((x_46re <= (-5.8d+228)) .or. (.not. (x_46re <= 9d+222))) then
        tmp = x_46re * (x_46re * x_46re)
    else
        tmp = ((x_46re * (x_46re + x_46im)) * (x_46re - x_46im)) - (x_46im * (x_46re * (x_46im + x_46im)))
    end if
    code = tmp
end function
public static double code(double x_46_re, double x_46_im) {
	double tmp;
	if ((x_46_re <= -5.8e+228) || !(x_46_re <= 9e+222)) {
		tmp = x_46_re * (x_46_re * x_46_re);
	} else {
		tmp = ((x_46_re * (x_46_re + x_46_im)) * (x_46_re - x_46_im)) - (x_46_im * (x_46_re * (x_46_im + x_46_im)));
	}
	return tmp;
}
def code(x_46_re, x_46_im):
	tmp = 0
	if (x_46_re <= -5.8e+228) or not (x_46_re <= 9e+222):
		tmp = x_46_re * (x_46_re * x_46_re)
	else:
		tmp = ((x_46_re * (x_46_re + x_46_im)) * (x_46_re - x_46_im)) - (x_46_im * (x_46_re * (x_46_im + x_46_im)))
	return tmp
function code(x_46_re, x_46_im)
	tmp = 0.0
	if ((x_46_re <= -5.8e+228) || !(x_46_re <= 9e+222))
		tmp = Float64(x_46_re * Float64(x_46_re * x_46_re));
	else
		tmp = Float64(Float64(Float64(x_46_re * Float64(x_46_re + x_46_im)) * Float64(x_46_re - x_46_im)) - Float64(x_46_im * Float64(x_46_re * Float64(x_46_im + x_46_im))));
	end
	return tmp
end
function tmp_2 = code(x_46_re, x_46_im)
	tmp = 0.0;
	if ((x_46_re <= -5.8e+228) || ~((x_46_re <= 9e+222)))
		tmp = x_46_re * (x_46_re * x_46_re);
	else
		tmp = ((x_46_re * (x_46_re + x_46_im)) * (x_46_re - x_46_im)) - (x_46_im * (x_46_re * (x_46_im + x_46_im)));
	end
	tmp_2 = tmp;
end
code[x$46$re_, x$46$im_] := If[Or[LessEqual[x$46$re, -5.8e+228], N[Not[LessEqual[x$46$re, 9e+222]], $MachinePrecision]], N[(x$46$re * N[(x$46$re * x$46$re), $MachinePrecision]), $MachinePrecision], N[(N[(N[(x$46$re * N[(x$46$re + x$46$im), $MachinePrecision]), $MachinePrecision] * N[(x$46$re - x$46$im), $MachinePrecision]), $MachinePrecision] - N[(x$46$im * N[(x$46$re * N[(x$46$im + x$46$im), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x.re \leq -5.8 \cdot 10^{+228} \lor \neg \left(x.re \leq 9 \cdot 10^{+222}\right):\\
\;\;\;\;x.re \cdot \left(x.re \cdot x.re\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x.re < -5.80000000000000003e228 or 8.99999999999999978e222 < x.re

    1. Initial program 54.1%

      \[\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.im \]
    2. Step-by-step derivation
      1. *-commutative54.1%

        \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \left(x.re \cdot x.im + \color{blue}{x.re \cdot x.im}\right) \cdot x.im \]
      2. distribute-lft-out54.1%

        \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \color{blue}{\left(x.re \cdot \left(x.im + x.im\right)\right)} \cdot x.im \]
      3. associate-*l*54.1%

        \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \color{blue}{x.re \cdot \left(\left(x.im + x.im\right) \cdot x.im\right)} \]
      4. *-commutative54.1%

        \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \color{blue}{\left(\left(x.im + x.im\right) \cdot x.im\right) \cdot x.re} \]
      5. distribute-rgt-out--59.5%

        \[\leadsto \color{blue}{x.re \cdot \left(\left(x.re \cdot x.re - x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)} \]
      6. associate--l-59.5%

        \[\leadsto x.re \cdot \color{blue}{\left(x.re \cdot x.re - \left(x.im \cdot x.im + \left(x.im + x.im\right) \cdot x.im\right)\right)} \]
      7. associate--l-59.5%

        \[\leadsto x.re \cdot \color{blue}{\left(\left(x.re \cdot x.re - x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)} \]
      8. sub-neg59.5%

        \[\leadsto x.re \cdot \left(\color{blue}{\left(x.re \cdot x.re + \left(-x.im \cdot x.im\right)\right)} - \left(x.im + x.im\right) \cdot x.im\right) \]
      9. associate--l+59.5%

        \[\leadsto x.re \cdot \color{blue}{\left(x.re \cdot x.re + \left(\left(-x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)\right)} \]
      10. fma-udef64.9%

        \[\leadsto x.re \cdot \color{blue}{\mathsf{fma}\left(x.re, x.re, \left(-x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)} \]
      11. neg-mul-164.9%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, \color{blue}{-1 \cdot \left(x.im \cdot x.im\right)} - \left(x.im + x.im\right) \cdot x.im\right) \]
      12. count-264.9%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, -1 \cdot \left(x.im \cdot x.im\right) - \color{blue}{\left(2 \cdot x.im\right)} \cdot x.im\right) \]
      13. associate-*l*64.9%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, -1 \cdot \left(x.im \cdot x.im\right) - \color{blue}{2 \cdot \left(x.im \cdot x.im\right)}\right) \]
      14. distribute-rgt-out--64.9%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, \color{blue}{\left(x.im \cdot x.im\right) \cdot \left(-1 - 2\right)}\right) \]
      15. associate-*r*64.9%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, \color{blue}{x.im \cdot \left(x.im \cdot \left(-1 - 2\right)\right)}\right) \]
      16. metadata-eval64.9%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, x.im \cdot \left(x.im \cdot \color{blue}{-3}\right)\right) \]
    3. Simplified64.9%

      \[\leadsto \color{blue}{x.re \cdot \mathsf{fma}\left(x.re, x.re, x.im \cdot \left(x.im \cdot -3\right)\right)} \]
    4. Taylor expanded in x.re around inf 94.6%

      \[\leadsto x.re \cdot \color{blue}{{x.re}^{2}} \]
    5. Step-by-step derivation
      1. unpow294.6%

        \[\leadsto x.re \cdot \color{blue}{\left(x.re \cdot x.re\right)} \]
    6. Simplified94.6%

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

    if -5.80000000000000003e228 < x.re < 8.99999999999999978e222

    1. Initial program 87.3%

      \[\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.im \]
    2. Step-by-step derivation
      1. *-commutative87.3%

        \[\leadsto \color{blue}{x.re \cdot \left(x.re \cdot x.re - x.im \cdot x.im\right)} - \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.im \]
      2. *-commutative87.3%

        \[\leadsto x.re \cdot \left(x.re \cdot x.re - x.im \cdot x.im\right) - \color{blue}{x.im \cdot \left(x.re \cdot x.im + x.im \cdot x.re\right)} \]
      3. *-commutative87.3%

        \[\leadsto x.re \cdot \left(x.re \cdot x.re - x.im \cdot x.im\right) - x.im \cdot \left(x.re \cdot x.im + \color{blue}{x.re \cdot x.im}\right) \]
      4. distribute-lft-out87.3%

        \[\leadsto x.re \cdot \left(x.re \cdot x.re - x.im \cdot x.im\right) - x.im \cdot \color{blue}{\left(x.re \cdot \left(x.im + x.im\right)\right)} \]
    3. Simplified87.3%

      \[\leadsto \color{blue}{x.re \cdot \left(x.re \cdot x.re - x.im \cdot x.im\right) - x.im \cdot \left(x.re \cdot \left(x.im + x.im\right)\right)} \]
    4. Step-by-step derivation
      1. difference-of-squares92.8%

        \[\leadsto x.re \cdot \color{blue}{\left(\left(x.re + x.im\right) \cdot \left(x.re - x.im\right)\right)} - x.im \cdot \left(x.re \cdot \left(x.im + x.im\right)\right) \]
    5. Applied egg-rr92.8%

      \[\leadsto x.re \cdot \color{blue}{\left(\left(x.re + x.im\right) \cdot \left(x.re - x.im\right)\right)} - x.im \cdot \left(x.re \cdot \left(x.im + x.im\right)\right) \]
    6. Step-by-step derivation
      1. associate-*r*97.0%

        \[\leadsto \color{blue}{\left(x.re \cdot \left(x.re + x.im\right)\right) \cdot \left(x.re - x.im\right)} - x.im \cdot \left(x.re \cdot \left(x.im + x.im\right)\right) \]
      2. fma-neg97.0%

        \[\leadsto \color{blue}{\mathsf{fma}\left(x.re \cdot \left(x.re + x.im\right), x.re - x.im, -x.im \cdot \left(x.re \cdot \left(x.im + x.im\right)\right)\right)} \]
      3. distribute-rgt-neg-in97.0%

        \[\leadsto \mathsf{fma}\left(x.re \cdot \left(x.re + x.im\right), x.re - x.im, \color{blue}{x.im \cdot \left(-x.re \cdot \left(x.im + x.im\right)\right)}\right) \]
      4. distribute-rgt-neg-in97.0%

        \[\leadsto \mathsf{fma}\left(x.re \cdot \left(x.re + x.im\right), x.re - x.im, x.im \cdot \color{blue}{\left(x.re \cdot \left(-\left(x.im + x.im\right)\right)\right)}\right) \]
    7. Applied egg-rr97.0%

      \[\leadsto \color{blue}{\mathsf{fma}\left(x.re \cdot \left(x.re + x.im\right), x.re - x.im, x.im \cdot \left(x.re \cdot \left(-\left(x.im + x.im\right)\right)\right)\right)} \]
    8. Step-by-step derivation
      1. fma-udef97.0%

        \[\leadsto \color{blue}{\left(x.re \cdot \left(x.re + x.im\right)\right) \cdot \left(x.re - x.im\right) + x.im \cdot \left(x.re \cdot \left(-\left(x.im + x.im\right)\right)\right)} \]
    9. Applied egg-rr97.0%

      \[\leadsto \color{blue}{\left(x.re \cdot \left(x.re + x.im\right)\right) \cdot \left(x.re - x.im\right) + x.im \cdot \left(x.re \cdot \left(-\left(x.im + x.im\right)\right)\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification96.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x.re \leq -5.8 \cdot 10^{+228} \lor \neg \left(x.re \leq 9 \cdot 10^{+222}\right):\\ \;\;\;\;x.re \cdot \left(x.re \cdot x.re\right)\\ \mathbf{else}:\\ \;\;\;\;\left(x.re \cdot \left(x.re + x.im\right)\right) \cdot \left(x.re - x.im\right) - x.im \cdot \left(x.re \cdot \left(x.im + x.im\right)\right)\\ \end{array} \]

Alternative 4: 91.7% accurate, 1.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x.im \leq 1.15 \cdot 10^{+139}:\\ \;\;\;\;x.re \cdot \left(x.re \cdot x.re + x.im \cdot \left(x.im \cdot -3\right)\right)\\ \mathbf{else}:\\ \;\;\;\;x.im \cdot \left(x.re \cdot \left(x.im \cdot -3\right)\right)\\ \end{array} \end{array} \]
(FPCore (x.re x.im)
 :precision binary64
 (if (<= x.im 1.15e+139)
   (* x.re (+ (* x.re x.re) (* x.im (* x.im -3.0))))
   (* x.im (* x.re (* x.im -3.0)))))
double code(double x_46_re, double x_46_im) {
	double tmp;
	if (x_46_im <= 1.15e+139) {
		tmp = x_46_re * ((x_46_re * x_46_re) + (x_46_im * (x_46_im * -3.0)));
	} else {
		tmp = x_46_im * (x_46_re * (x_46_im * -3.0));
	}
	return tmp;
}
real(8) function code(x_46re, x_46im)
    real(8), intent (in) :: x_46re
    real(8), intent (in) :: x_46im
    real(8) :: tmp
    if (x_46im <= 1.15d+139) then
        tmp = x_46re * ((x_46re * x_46re) + (x_46im * (x_46im * (-3.0d0))))
    else
        tmp = x_46im * (x_46re * (x_46im * (-3.0d0)))
    end if
    code = tmp
end function
public static double code(double x_46_re, double x_46_im) {
	double tmp;
	if (x_46_im <= 1.15e+139) {
		tmp = x_46_re * ((x_46_re * x_46_re) + (x_46_im * (x_46_im * -3.0)));
	} else {
		tmp = x_46_im * (x_46_re * (x_46_im * -3.0));
	}
	return tmp;
}
def code(x_46_re, x_46_im):
	tmp = 0
	if x_46_im <= 1.15e+139:
		tmp = x_46_re * ((x_46_re * x_46_re) + (x_46_im * (x_46_im * -3.0)))
	else:
		tmp = x_46_im * (x_46_re * (x_46_im * -3.0))
	return tmp
function code(x_46_re, x_46_im)
	tmp = 0.0
	if (x_46_im <= 1.15e+139)
		tmp = Float64(x_46_re * Float64(Float64(x_46_re * x_46_re) + Float64(x_46_im * Float64(x_46_im * -3.0))));
	else
		tmp = Float64(x_46_im * Float64(x_46_re * Float64(x_46_im * -3.0)));
	end
	return tmp
end
function tmp_2 = code(x_46_re, x_46_im)
	tmp = 0.0;
	if (x_46_im <= 1.15e+139)
		tmp = x_46_re * ((x_46_re * x_46_re) + (x_46_im * (x_46_im * -3.0)));
	else
		tmp = x_46_im * (x_46_re * (x_46_im * -3.0));
	end
	tmp_2 = tmp;
end
code[x$46$re_, x$46$im_] := If[LessEqual[x$46$im, 1.15e+139], N[(x$46$re * N[(N[(x$46$re * x$46$re), $MachinePrecision] + N[(x$46$im * N[(x$46$im * -3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x$46$im * N[(x$46$re * N[(x$46$im * -3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x.im \leq 1.15 \cdot 10^{+139}:\\
\;\;\;\;x.re \cdot \left(x.re \cdot x.re + x.im \cdot \left(x.im \cdot -3\right)\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x.im < 1.15e139

    1. Initial program 90.9%

      \[\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.im \]
    2. Step-by-step derivation
      1. *-commutative90.9%

        \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \left(x.re \cdot x.im + \color{blue}{x.re \cdot x.im}\right) \cdot x.im \]
      2. distribute-lft-out90.9%

        \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \color{blue}{\left(x.re \cdot \left(x.im + x.im\right)\right)} \cdot x.im \]
      3. associate-*l*90.9%

        \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \color{blue}{x.re \cdot \left(\left(x.im + x.im\right) \cdot x.im\right)} \]
      4. *-commutative90.9%

        \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \color{blue}{\left(\left(x.im + x.im\right) \cdot x.im\right) \cdot x.re} \]
      5. distribute-rgt-out--93.7%

        \[\leadsto \color{blue}{x.re \cdot \left(\left(x.re \cdot x.re - x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)} \]
      6. associate--l-93.7%

        \[\leadsto x.re \cdot \color{blue}{\left(x.re \cdot x.re - \left(x.im \cdot x.im + \left(x.im + x.im\right) \cdot x.im\right)\right)} \]
      7. associate--l-93.7%

        \[\leadsto x.re \cdot \color{blue}{\left(\left(x.re \cdot x.re - x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)} \]
      8. sub-neg93.7%

        \[\leadsto x.re \cdot \left(\color{blue}{\left(x.re \cdot x.re + \left(-x.im \cdot x.im\right)\right)} - \left(x.im + x.im\right) \cdot x.im\right) \]
      9. associate--l+93.7%

        \[\leadsto x.re \cdot \color{blue}{\left(x.re \cdot x.re + \left(\left(-x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)\right)} \]
      10. fma-udef96.5%

        \[\leadsto x.re \cdot \color{blue}{\mathsf{fma}\left(x.re, x.re, \left(-x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)} \]
      11. neg-mul-196.5%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, \color{blue}{-1 \cdot \left(x.im \cdot x.im\right)} - \left(x.im + x.im\right) \cdot x.im\right) \]
      12. count-296.5%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, -1 \cdot \left(x.im \cdot x.im\right) - \color{blue}{\left(2 \cdot x.im\right)} \cdot x.im\right) \]
      13. associate-*l*96.5%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, -1 \cdot \left(x.im \cdot x.im\right) - \color{blue}{2 \cdot \left(x.im \cdot x.im\right)}\right) \]
      14. distribute-rgt-out--96.5%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, \color{blue}{\left(x.im \cdot x.im\right) \cdot \left(-1 - 2\right)}\right) \]
      15. associate-*r*96.5%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, \color{blue}{x.im \cdot \left(x.im \cdot \left(-1 - 2\right)\right)}\right) \]
      16. metadata-eval96.5%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, x.im \cdot \left(x.im \cdot \color{blue}{-3}\right)\right) \]
    3. Simplified96.5%

      \[\leadsto \color{blue}{x.re \cdot \mathsf{fma}\left(x.re, x.re, x.im \cdot \left(x.im \cdot -3\right)\right)} \]
    4. Step-by-step derivation
      1. fma-udef93.7%

        \[\leadsto x.re \cdot \color{blue}{\left(x.re \cdot x.re + x.im \cdot \left(x.im \cdot -3\right)\right)} \]
    5. Applied egg-rr93.7%

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

    if 1.15e139 < x.im

    1. Initial program 41.0%

      \[\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.im \]
    2. Step-by-step derivation
      1. *-commutative41.0%

        \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \left(x.re \cdot x.im + \color{blue}{x.re \cdot x.im}\right) \cdot x.im \]
      2. distribute-lft-out41.0%

        \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \color{blue}{\left(x.re \cdot \left(x.im + x.im\right)\right)} \cdot x.im \]
      3. associate-*l*41.0%

        \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \color{blue}{x.re \cdot \left(\left(x.im + x.im\right) \cdot x.im\right)} \]
      4. *-commutative41.0%

        \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \color{blue}{\left(\left(x.im + x.im\right) \cdot x.im\right) \cdot x.re} \]
      5. distribute-rgt-out--40.9%

        \[\leadsto \color{blue}{x.re \cdot \left(\left(x.re \cdot x.re - x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)} \]
      6. associate--l-40.9%

        \[\leadsto x.re \cdot \color{blue}{\left(x.re \cdot x.re - \left(x.im \cdot x.im + \left(x.im + x.im\right) \cdot x.im\right)\right)} \]
      7. associate--l-40.9%

        \[\leadsto x.re \cdot \color{blue}{\left(\left(x.re \cdot x.re - x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)} \]
      8. sub-neg40.9%

        \[\leadsto x.re \cdot \left(\color{blue}{\left(x.re \cdot x.re + \left(-x.im \cdot x.im\right)\right)} - \left(x.im + x.im\right) \cdot x.im\right) \]
      9. associate--l+40.9%

        \[\leadsto x.re \cdot \color{blue}{\left(x.re \cdot x.re + \left(\left(-x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)\right)} \]
      10. fma-udef59.5%

        \[\leadsto x.re \cdot \color{blue}{\mathsf{fma}\left(x.re, x.re, \left(-x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)} \]
      11. neg-mul-159.5%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, \color{blue}{-1 \cdot \left(x.im \cdot x.im\right)} - \left(x.im + x.im\right) \cdot x.im\right) \]
      12. count-259.5%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, -1 \cdot \left(x.im \cdot x.im\right) - \color{blue}{\left(2 \cdot x.im\right)} \cdot x.im\right) \]
      13. associate-*l*59.5%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, -1 \cdot \left(x.im \cdot x.im\right) - \color{blue}{2 \cdot \left(x.im \cdot x.im\right)}\right) \]
      14. distribute-rgt-out--59.5%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, \color{blue}{\left(x.im \cdot x.im\right) \cdot \left(-1 - 2\right)}\right) \]
      15. associate-*r*59.5%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, \color{blue}{x.im \cdot \left(x.im \cdot \left(-1 - 2\right)\right)}\right) \]
      16. metadata-eval59.5%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, x.im \cdot \left(x.im \cdot \color{blue}{-3}\right)\right) \]
    3. Simplified59.5%

      \[\leadsto \color{blue}{x.re \cdot \mathsf{fma}\left(x.re, x.re, x.im \cdot \left(x.im \cdot -3\right)\right)} \]
    4. Taylor expanded in x.re around 0 59.6%

      \[\leadsto \color{blue}{-3 \cdot \left(x.re \cdot {x.im}^{2}\right)} \]
    5. Step-by-step derivation
      1. associate-*r*59.5%

        \[\leadsto \color{blue}{\left(-3 \cdot x.re\right) \cdot {x.im}^{2}} \]
      2. *-commutative59.5%

        \[\leadsto \color{blue}{{x.im}^{2} \cdot \left(-3 \cdot x.re\right)} \]
      3. *-commutative59.5%

        \[\leadsto {x.im}^{2} \cdot \color{blue}{\left(x.re \cdot -3\right)} \]
      4. metadata-eval59.5%

        \[\leadsto {x.im}^{2} \cdot \left(x.re \cdot \color{blue}{\left(-1 + -2\right)}\right) \]
      5. distribute-rgt-out59.5%

        \[\leadsto {x.im}^{2} \cdot \color{blue}{\left(-1 \cdot x.re + -2 \cdot x.re\right)} \]
      6. distribute-lft-in59.6%

        \[\leadsto \color{blue}{{x.im}^{2} \cdot \left(-1 \cdot x.re\right) + {x.im}^{2} \cdot \left(-2 \cdot x.re\right)} \]
      7. mul-1-neg59.6%

        \[\leadsto {x.im}^{2} \cdot \color{blue}{\left(-x.re\right)} + {x.im}^{2} \cdot \left(-2 \cdot x.re\right) \]
      8. distribute-rgt-neg-in59.6%

        \[\leadsto \color{blue}{\left(-{x.im}^{2} \cdot x.re\right)} + {x.im}^{2} \cdot \left(-2 \cdot x.re\right) \]
      9. distribute-lft-neg-in59.6%

        \[\leadsto \color{blue}{\left(-{x.im}^{2}\right) \cdot x.re} + {x.im}^{2} \cdot \left(-2 \cdot x.re\right) \]
      10. unpow259.6%

        \[\leadsto \left(-\color{blue}{x.im \cdot x.im}\right) \cdot x.re + {x.im}^{2} \cdot \left(-2 \cdot x.re\right) \]
      11. distribute-rgt-neg-out59.6%

        \[\leadsto \color{blue}{\left(x.im \cdot \left(-x.im\right)\right)} \cdot x.re + {x.im}^{2} \cdot \left(-2 \cdot x.re\right) \]
      12. *-commutative59.6%

        \[\leadsto \color{blue}{x.re \cdot \left(x.im \cdot \left(-x.im\right)\right)} + {x.im}^{2} \cdot \left(-2 \cdot x.re\right) \]
      13. metadata-eval59.6%

        \[\leadsto x.re \cdot \left(x.im \cdot \left(-x.im\right)\right) + {x.im}^{2} \cdot \left(\color{blue}{\left(-2\right)} \cdot x.re\right) \]
      14. distribute-lft-neg-in59.6%

        \[\leadsto x.re \cdot \left(x.im \cdot \left(-x.im\right)\right) + {x.im}^{2} \cdot \color{blue}{\left(-2 \cdot x.re\right)} \]
      15. count-259.6%

        \[\leadsto x.re \cdot \left(x.im \cdot \left(-x.im\right)\right) + {x.im}^{2} \cdot \left(-\color{blue}{\left(x.re + x.re\right)}\right) \]
      16. distribute-rgt-neg-in59.6%

        \[\leadsto x.re \cdot \left(x.im \cdot \left(-x.im\right)\right) + \color{blue}{\left(-{x.im}^{2} \cdot \left(x.re + x.re\right)\right)} \]
      17. distribute-rgt-out59.6%

        \[\leadsto x.re \cdot \left(x.im \cdot \left(-x.im\right)\right) + \left(-\color{blue}{\left(x.re \cdot {x.im}^{2} + x.re \cdot {x.im}^{2}\right)}\right) \]
      18. distribute-lft-out59.6%

        \[\leadsto x.re \cdot \left(x.im \cdot \left(-x.im\right)\right) + \left(-\color{blue}{x.re \cdot \left({x.im}^{2} + {x.im}^{2}\right)}\right) \]
      19. distribute-rgt-neg-in59.6%

        \[\leadsto x.re \cdot \left(x.im \cdot \left(-x.im\right)\right) + \color{blue}{x.re \cdot \left(-\left({x.im}^{2} + {x.im}^{2}\right)\right)} \]
      20. count-259.6%

        \[\leadsto x.re \cdot \left(x.im \cdot \left(-x.im\right)\right) + x.re \cdot \left(-\color{blue}{2 \cdot {x.im}^{2}}\right) \]
      21. distribute-lft-neg-in59.6%

        \[\leadsto x.re \cdot \left(x.im \cdot \left(-x.im\right)\right) + x.re \cdot \color{blue}{\left(\left(-2\right) \cdot {x.im}^{2}\right)} \]
      22. metadata-eval59.6%

        \[\leadsto x.re \cdot \left(x.im \cdot \left(-x.im\right)\right) + x.re \cdot \left(\color{blue}{-2} \cdot {x.im}^{2}\right) \]
    6. Simplified76.5%

      \[\leadsto \color{blue}{x.im \cdot \left(x.re \cdot \left(-3 \cdot x.im\right)\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification90.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x.im \leq 1.15 \cdot 10^{+139}:\\ \;\;\;\;x.re \cdot \left(x.re \cdot x.re + x.im \cdot \left(x.im \cdot -3\right)\right)\\ \mathbf{else}:\\ \;\;\;\;x.im \cdot \left(x.re \cdot \left(x.im \cdot -3\right)\right)\\ \end{array} \]

Alternative 5: 70.5% accurate, 2.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x.im \leq 0.00044:\\ \;\;\;\;x.re \cdot \left(x.re \cdot x.re\right)\\ \mathbf{else}:\\ \;\;\;\;x.im \cdot \left(-3 \cdot \left(x.re \cdot x.im\right)\right)\\ \end{array} \end{array} \]
(FPCore (x.re x.im)
 :precision binary64
 (if (<= x.im 0.00044) (* x.re (* x.re x.re)) (* x.im (* -3.0 (* x.re x.im)))))
double code(double x_46_re, double x_46_im) {
	double tmp;
	if (x_46_im <= 0.00044) {
		tmp = x_46_re * (x_46_re * x_46_re);
	} else {
		tmp = x_46_im * (-3.0 * (x_46_re * x_46_im));
	}
	return tmp;
}
real(8) function code(x_46re, x_46im)
    real(8), intent (in) :: x_46re
    real(8), intent (in) :: x_46im
    real(8) :: tmp
    if (x_46im <= 0.00044d0) then
        tmp = x_46re * (x_46re * x_46re)
    else
        tmp = x_46im * ((-3.0d0) * (x_46re * x_46im))
    end if
    code = tmp
end function
public static double code(double x_46_re, double x_46_im) {
	double tmp;
	if (x_46_im <= 0.00044) {
		tmp = x_46_re * (x_46_re * x_46_re);
	} else {
		tmp = x_46_im * (-3.0 * (x_46_re * x_46_im));
	}
	return tmp;
}
def code(x_46_re, x_46_im):
	tmp = 0
	if x_46_im <= 0.00044:
		tmp = x_46_re * (x_46_re * x_46_re)
	else:
		tmp = x_46_im * (-3.0 * (x_46_re * x_46_im))
	return tmp
function code(x_46_re, x_46_im)
	tmp = 0.0
	if (x_46_im <= 0.00044)
		tmp = Float64(x_46_re * Float64(x_46_re * x_46_re));
	else
		tmp = Float64(x_46_im * Float64(-3.0 * Float64(x_46_re * x_46_im)));
	end
	return tmp
end
function tmp_2 = code(x_46_re, x_46_im)
	tmp = 0.0;
	if (x_46_im <= 0.00044)
		tmp = x_46_re * (x_46_re * x_46_re);
	else
		tmp = x_46_im * (-3.0 * (x_46_re * x_46_im));
	end
	tmp_2 = tmp;
end
code[x$46$re_, x$46$im_] := If[LessEqual[x$46$im, 0.00044], N[(x$46$re * N[(x$46$re * x$46$re), $MachinePrecision]), $MachinePrecision], N[(x$46$im * N[(-3.0 * N[(x$46$re * x$46$im), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x.im \leq 0.00044:\\
\;\;\;\;x.re \cdot \left(x.re \cdot x.re\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x.im < 4.40000000000000016e-4

    1. Initial program 91.2%

      \[\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.im \]
    2. Step-by-step derivation
      1. *-commutative91.2%

        \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \left(x.re \cdot x.im + \color{blue}{x.re \cdot x.im}\right) \cdot x.im \]
      2. distribute-lft-out91.2%

        \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \color{blue}{\left(x.re \cdot \left(x.im + x.im\right)\right)} \cdot x.im \]
      3. associate-*l*91.2%

        \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \color{blue}{x.re \cdot \left(\left(x.im + x.im\right) \cdot x.im\right)} \]
      4. *-commutative91.2%

        \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \color{blue}{\left(\left(x.im + x.im\right) \cdot x.im\right) \cdot x.re} \]
      5. distribute-rgt-out--93.2%

        \[\leadsto \color{blue}{x.re \cdot \left(\left(x.re \cdot x.re - x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)} \]
      6. associate--l-93.2%

        \[\leadsto x.re \cdot \color{blue}{\left(x.re \cdot x.re - \left(x.im \cdot x.im + \left(x.im + x.im\right) \cdot x.im\right)\right)} \]
      7. associate--l-93.2%

        \[\leadsto x.re \cdot \color{blue}{\left(\left(x.re \cdot x.re - x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)} \]
      8. sub-neg93.2%

        \[\leadsto x.re \cdot \left(\color{blue}{\left(x.re \cdot x.re + \left(-x.im \cdot x.im\right)\right)} - \left(x.im + x.im\right) \cdot x.im\right) \]
      9. associate--l+93.2%

        \[\leadsto x.re \cdot \color{blue}{\left(x.re \cdot x.re + \left(\left(-x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)\right)} \]
      10. fma-udef96.3%

        \[\leadsto x.re \cdot \color{blue}{\mathsf{fma}\left(x.re, x.re, \left(-x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)} \]
      11. neg-mul-196.3%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, \color{blue}{-1 \cdot \left(x.im \cdot x.im\right)} - \left(x.im + x.im\right) \cdot x.im\right) \]
      12. count-296.3%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, -1 \cdot \left(x.im \cdot x.im\right) - \color{blue}{\left(2 \cdot x.im\right)} \cdot x.im\right) \]
      13. associate-*l*96.3%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, -1 \cdot \left(x.im \cdot x.im\right) - \color{blue}{2 \cdot \left(x.im \cdot x.im\right)}\right) \]
      14. distribute-rgt-out--96.3%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, \color{blue}{\left(x.im \cdot x.im\right) \cdot \left(-1 - 2\right)}\right) \]
      15. associate-*r*96.3%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, \color{blue}{x.im \cdot \left(x.im \cdot \left(-1 - 2\right)\right)}\right) \]
      16. metadata-eval96.3%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, x.im \cdot \left(x.im \cdot \color{blue}{-3}\right)\right) \]
    3. Simplified96.3%

      \[\leadsto \color{blue}{x.re \cdot \mathsf{fma}\left(x.re, x.re, x.im \cdot \left(x.im \cdot -3\right)\right)} \]
    4. Taylor expanded in x.re around inf 74.3%

      \[\leadsto x.re \cdot \color{blue}{{x.re}^{2}} \]
    5. Step-by-step derivation
      1. unpow274.3%

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

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

    if 4.40000000000000016e-4 < x.im

    1. Initial program 53.6%

      \[\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.im \]
    2. Step-by-step derivation
      1. *-commutative53.6%

        \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \left(x.re \cdot x.im + \color{blue}{x.re \cdot x.im}\right) \cdot x.im \]
      2. distribute-lft-out53.6%

        \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \color{blue}{\left(x.re \cdot \left(x.im + x.im\right)\right)} \cdot x.im \]
      3. associate-*l*53.5%

        \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \color{blue}{x.re \cdot \left(\left(x.im + x.im\right) \cdot x.im\right)} \]
      4. *-commutative53.5%

        \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \color{blue}{\left(\left(x.im + x.im\right) \cdot x.im\right) \cdot x.re} \]
      5. distribute-rgt-out--56.8%

        \[\leadsto \color{blue}{x.re \cdot \left(\left(x.re \cdot x.re - x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)} \]
      6. associate--l-56.8%

        \[\leadsto x.re \cdot \color{blue}{\left(x.re \cdot x.re - \left(x.im \cdot x.im + \left(x.im + x.im\right) \cdot x.im\right)\right)} \]
      7. associate--l-56.8%

        \[\leadsto x.re \cdot \color{blue}{\left(\left(x.re \cdot x.re - x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)} \]
      8. sub-neg56.8%

        \[\leadsto x.re \cdot \left(\color{blue}{\left(x.re \cdot x.re + \left(-x.im \cdot x.im\right)\right)} - \left(x.im + x.im\right) \cdot x.im\right) \]
      9. associate--l+56.8%

        \[\leadsto x.re \cdot \color{blue}{\left(x.re \cdot x.re + \left(\left(-x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)\right)} \]
      10. fma-udef70.4%

        \[\leadsto x.re \cdot \color{blue}{\mathsf{fma}\left(x.re, x.re, \left(-x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)} \]
      11. neg-mul-170.4%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, \color{blue}{-1 \cdot \left(x.im \cdot x.im\right)} - \left(x.im + x.im\right) \cdot x.im\right) \]
      12. count-270.4%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, -1 \cdot \left(x.im \cdot x.im\right) - \color{blue}{\left(2 \cdot x.im\right)} \cdot x.im\right) \]
      13. associate-*l*70.4%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, -1 \cdot \left(x.im \cdot x.im\right) - \color{blue}{2 \cdot \left(x.im \cdot x.im\right)}\right) \]
      14. distribute-rgt-out--70.4%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, \color{blue}{\left(x.im \cdot x.im\right) \cdot \left(-1 - 2\right)}\right) \]
      15. associate-*r*70.4%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, \color{blue}{x.im \cdot \left(x.im \cdot \left(-1 - 2\right)\right)}\right) \]
      16. metadata-eval70.4%

        \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, x.im \cdot \left(x.im \cdot \color{blue}{-3}\right)\right) \]
    3. Simplified70.4%

      \[\leadsto \color{blue}{x.re \cdot \mathsf{fma}\left(x.re, x.re, x.im \cdot \left(x.im \cdot -3\right)\right)} \]
    4. Taylor expanded in x.re around 0 65.3%

      \[\leadsto \color{blue}{-3 \cdot \left(x.re \cdot {x.im}^{2}\right)} \]
    5. Step-by-step derivation
      1. associate-*r*65.3%

        \[\leadsto \color{blue}{\left(-3 \cdot x.re\right) \cdot {x.im}^{2}} \]
      2. *-commutative65.3%

        \[\leadsto \color{blue}{{x.im}^{2} \cdot \left(-3 \cdot x.re\right)} \]
      3. *-commutative65.3%

        \[\leadsto {x.im}^{2} \cdot \color{blue}{\left(x.re \cdot -3\right)} \]
      4. metadata-eval65.3%

        \[\leadsto {x.im}^{2} \cdot \left(x.re \cdot \color{blue}{\left(-1 + -2\right)}\right) \]
      5. distribute-rgt-out65.3%

        \[\leadsto {x.im}^{2} \cdot \color{blue}{\left(-1 \cdot x.re + -2 \cdot x.re\right)} \]
      6. distribute-lft-in65.3%

        \[\leadsto \color{blue}{{x.im}^{2} \cdot \left(-1 \cdot x.re\right) + {x.im}^{2} \cdot \left(-2 \cdot x.re\right)} \]
      7. mul-1-neg65.3%

        \[\leadsto {x.im}^{2} \cdot \color{blue}{\left(-x.re\right)} + {x.im}^{2} \cdot \left(-2 \cdot x.re\right) \]
      8. distribute-rgt-neg-in65.3%

        \[\leadsto \color{blue}{\left(-{x.im}^{2} \cdot x.re\right)} + {x.im}^{2} \cdot \left(-2 \cdot x.re\right) \]
      9. distribute-lft-neg-in65.3%

        \[\leadsto \color{blue}{\left(-{x.im}^{2}\right) \cdot x.re} + {x.im}^{2} \cdot \left(-2 \cdot x.re\right) \]
      10. unpow265.3%

        \[\leadsto \left(-\color{blue}{x.im \cdot x.im}\right) \cdot x.re + {x.im}^{2} \cdot \left(-2 \cdot x.re\right) \]
      11. distribute-rgt-neg-out65.3%

        \[\leadsto \color{blue}{\left(x.im \cdot \left(-x.im\right)\right)} \cdot x.re + {x.im}^{2} \cdot \left(-2 \cdot x.re\right) \]
      12. *-commutative65.3%

        \[\leadsto \color{blue}{x.re \cdot \left(x.im \cdot \left(-x.im\right)\right)} + {x.im}^{2} \cdot \left(-2 \cdot x.re\right) \]
      13. metadata-eval65.3%

        \[\leadsto x.re \cdot \left(x.im \cdot \left(-x.im\right)\right) + {x.im}^{2} \cdot \left(\color{blue}{\left(-2\right)} \cdot x.re\right) \]
      14. distribute-lft-neg-in65.3%

        \[\leadsto x.re \cdot \left(x.im \cdot \left(-x.im\right)\right) + {x.im}^{2} \cdot \color{blue}{\left(-2 \cdot x.re\right)} \]
      15. count-265.3%

        \[\leadsto x.re \cdot \left(x.im \cdot \left(-x.im\right)\right) + {x.im}^{2} \cdot \left(-\color{blue}{\left(x.re + x.re\right)}\right) \]
      16. distribute-rgt-neg-in65.3%

        \[\leadsto x.re \cdot \left(x.im \cdot \left(-x.im\right)\right) + \color{blue}{\left(-{x.im}^{2} \cdot \left(x.re + x.re\right)\right)} \]
      17. distribute-rgt-out65.3%

        \[\leadsto x.re \cdot \left(x.im \cdot \left(-x.im\right)\right) + \left(-\color{blue}{\left(x.re \cdot {x.im}^{2} + x.re \cdot {x.im}^{2}\right)}\right) \]
      18. distribute-lft-out65.3%

        \[\leadsto x.re \cdot \left(x.im \cdot \left(-x.im\right)\right) + \left(-\color{blue}{x.re \cdot \left({x.im}^{2} + {x.im}^{2}\right)}\right) \]
      19. distribute-rgt-neg-in65.3%

        \[\leadsto x.re \cdot \left(x.im \cdot \left(-x.im\right)\right) + \color{blue}{x.re \cdot \left(-\left({x.im}^{2} + {x.im}^{2}\right)\right)} \]
      20. count-265.3%

        \[\leadsto x.re \cdot \left(x.im \cdot \left(-x.im\right)\right) + x.re \cdot \left(-\color{blue}{2 \cdot {x.im}^{2}}\right) \]
      21. distribute-lft-neg-in65.3%

        \[\leadsto x.re \cdot \left(x.im \cdot \left(-x.im\right)\right) + x.re \cdot \color{blue}{\left(\left(-2\right) \cdot {x.im}^{2}\right)} \]
      22. metadata-eval65.3%

        \[\leadsto x.re \cdot \left(x.im \cdot \left(-x.im\right)\right) + x.re \cdot \left(\color{blue}{-2} \cdot {x.im}^{2}\right) \]
    6. Simplified77.7%

      \[\leadsto \color{blue}{x.im \cdot \left(x.re \cdot \left(-3 \cdot x.im\right)\right)} \]
    7. Taylor expanded in x.re around 0 77.7%

      \[\leadsto x.im \cdot \color{blue}{\left(-3 \cdot \left(x.re \cdot x.im\right)\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification75.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x.im \leq 0.00044:\\ \;\;\;\;x.re \cdot \left(x.re \cdot x.re\right)\\ \mathbf{else}:\\ \;\;\;\;x.im \cdot \left(-3 \cdot \left(x.re \cdot x.im\right)\right)\\ \end{array} \]

Alternative 6: 58.6% accurate, 3.8× speedup?

\[\begin{array}{l} \\ x.re \cdot \left(x.re \cdot x.re\right) \end{array} \]
(FPCore (x.re x.im) :precision binary64 (* x.re (* x.re x.re)))
double code(double x_46_re, double x_46_im) {
	return x_46_re * (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_46re)
end function
public static double code(double x_46_re, double x_46_im) {
	return x_46_re * (x_46_re * x_46_re);
}
def code(x_46_re, x_46_im):
	return x_46_re * (x_46_re * x_46_re)
function code(x_46_re, x_46_im)
	return Float64(x_46_re * Float64(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_re);
end
code[x$46$re_, x$46$im_] := N[(x$46$re * N[(x$46$re * x$46$re), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
x.re \cdot \left(x.re \cdot x.re\right)
\end{array}
Derivation
  1. Initial program 82.5%

    \[\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.im \]
  2. Step-by-step derivation
    1. *-commutative82.5%

      \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \left(x.re \cdot x.im + \color{blue}{x.re \cdot x.im}\right) \cdot x.im \]
    2. distribute-lft-out82.5%

      \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \color{blue}{\left(x.re \cdot \left(x.im + x.im\right)\right)} \cdot x.im \]
    3. associate-*l*82.5%

      \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \color{blue}{x.re \cdot \left(\left(x.im + x.im\right) \cdot x.im\right)} \]
    4. *-commutative82.5%

      \[\leadsto \left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.re - \color{blue}{\left(\left(x.im + x.im\right) \cdot x.im\right) \cdot x.re} \]
    5. distribute-rgt-out--84.8%

      \[\leadsto \color{blue}{x.re \cdot \left(\left(x.re \cdot x.re - x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)} \]
    6. associate--l-84.8%

      \[\leadsto x.re \cdot \color{blue}{\left(x.re \cdot x.re - \left(x.im \cdot x.im + \left(x.im + x.im\right) \cdot x.im\right)\right)} \]
    7. associate--l-84.8%

      \[\leadsto x.re \cdot \color{blue}{\left(\left(x.re \cdot x.re - x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)} \]
    8. sub-neg84.8%

      \[\leadsto x.re \cdot \left(\color{blue}{\left(x.re \cdot x.re + \left(-x.im \cdot x.im\right)\right)} - \left(x.im + x.im\right) \cdot x.im\right) \]
    9. associate--l+84.8%

      \[\leadsto x.re \cdot \color{blue}{\left(x.re \cdot x.re + \left(\left(-x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)\right)} \]
    10. fma-udef90.3%

      \[\leadsto x.re \cdot \color{blue}{\mathsf{fma}\left(x.re, x.re, \left(-x.im \cdot x.im\right) - \left(x.im + x.im\right) \cdot x.im\right)} \]
    11. neg-mul-190.3%

      \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, \color{blue}{-1 \cdot \left(x.im \cdot x.im\right)} - \left(x.im + x.im\right) \cdot x.im\right) \]
    12. count-290.3%

      \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, -1 \cdot \left(x.im \cdot x.im\right) - \color{blue}{\left(2 \cdot x.im\right)} \cdot x.im\right) \]
    13. associate-*l*90.3%

      \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, -1 \cdot \left(x.im \cdot x.im\right) - \color{blue}{2 \cdot \left(x.im \cdot x.im\right)}\right) \]
    14. distribute-rgt-out--90.3%

      \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, \color{blue}{\left(x.im \cdot x.im\right) \cdot \left(-1 - 2\right)}\right) \]
    15. associate-*r*90.3%

      \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, \color{blue}{x.im \cdot \left(x.im \cdot \left(-1 - 2\right)\right)}\right) \]
    16. metadata-eval90.3%

      \[\leadsto x.re \cdot \mathsf{fma}\left(x.re, x.re, x.im \cdot \left(x.im \cdot \color{blue}{-3}\right)\right) \]
  3. Simplified90.3%

    \[\leadsto \color{blue}{x.re \cdot \mathsf{fma}\left(x.re, x.re, x.im \cdot \left(x.im \cdot -3\right)\right)} \]
  4. Taylor expanded in x.re around inf 62.5%

    \[\leadsto x.re \cdot \color{blue}{{x.re}^{2}} \]
  5. Step-by-step derivation
    1. unpow262.5%

      \[\leadsto x.re \cdot \color{blue}{\left(x.re \cdot x.re\right)} \]
  6. Simplified62.5%

    \[\leadsto x.re \cdot \color{blue}{\left(x.re \cdot x.re\right)} \]
  7. Final simplification62.5%

    \[\leadsto x.re \cdot \left(x.re \cdot x.re\right) \]

Developer target: 87.1% accurate, 1.1× speedup?

\[\begin{array}{l} \\ \left(x.re \cdot x.re\right) \cdot \left(x.re - x.im\right) + \left(x.re \cdot x.im\right) \cdot \left(x.re - 3 \cdot x.im\right) \end{array} \]
(FPCore (x.re x.im)
 :precision binary64
 (+ (* (* x.re x.re) (- x.re x.im)) (* (* x.re x.im) (- x.re (* 3.0 x.im)))))
double code(double x_46_re, double x_46_im) {
	return ((x_46_re * x_46_re) * (x_46_re - x_46_im)) + ((x_46_re * x_46_im) * (x_46_re - (3.0 * 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_46re) * (x_46re - x_46im)) + ((x_46re * x_46im) * (x_46re - (3.0d0 * x_46im)))
end function
public static double code(double x_46_re, double x_46_im) {
	return ((x_46_re * x_46_re) * (x_46_re - x_46_im)) + ((x_46_re * x_46_im) * (x_46_re - (3.0 * x_46_im)));
}
def code(x_46_re, x_46_im):
	return ((x_46_re * x_46_re) * (x_46_re - x_46_im)) + ((x_46_re * x_46_im) * (x_46_re - (3.0 * x_46_im)))
function code(x_46_re, x_46_im)
	return Float64(Float64(Float64(x_46_re * x_46_re) * Float64(x_46_re - x_46_im)) + Float64(Float64(x_46_re * x_46_im) * Float64(x_46_re - Float64(3.0 * x_46_im))))
end
function tmp = code(x_46_re, x_46_im)
	tmp = ((x_46_re * x_46_re) * (x_46_re - x_46_im)) + ((x_46_re * x_46_im) * (x_46_re - (3.0 * x_46_im)));
end
code[x$46$re_, x$46$im_] := N[(N[(N[(x$46$re * x$46$re), $MachinePrecision] * N[(x$46$re - x$46$im), $MachinePrecision]), $MachinePrecision] + N[(N[(x$46$re * x$46$im), $MachinePrecision] * N[(x$46$re - N[(3.0 * x$46$im), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\left(x.re \cdot x.re\right) \cdot \left(x.re - x.im\right) + \left(x.re \cdot x.im\right) \cdot \left(x.re - 3 \cdot x.im\right)
\end{array}

Reproduce

?
herbie shell --seed 2023238 
(FPCore (x.re x.im)
  :name "math.cube on complex, real part"
  :precision binary64

  :herbie-target
  (+ (* (* x.re x.re) (- x.re x.im)) (* (* x.re x.im) (- x.re (* 3.0 x.im))))

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