e^{\log \left(\sqrt{x.re \cdot x.re + x.im \cdot x.im}\right) \cdot y.re - \tan^{-1}_* \frac{x.im}{x.re} \cdot y.im} \cdot \cos \left(\log \left(\sqrt{x.re \cdot x.re + x.im \cdot x.im}\right) \cdot y.im + \tan^{-1}_* \frac{x.im}{x.re} \cdot y.re\right)\begin{array}{l}
\mathbf{if}\;x.re \le -1.66980863590209088 \cdot 10^{152}:\\
\;\;\;\;\frac{\sqrt[3]{{\left(\frac{-1}{x.re}\right)}^{\left(-y.re\right)}} \cdot \sqrt[3]{{\left(\frac{-1}{x.re}\right)}^{\left(-y.re\right)}}}{\frac{e^{\tan^{-1}_* \frac{x.im}{x.re} \cdot y.im}}{\sqrt[3]{{\left(\frac{-1}{x.re}\right)}^{\left(-y.re\right)}}}}\\
\mathbf{elif}\;x.re \le -1.59936965632703645 \cdot 10^{57}:\\
\;\;\;\;e^{\log \left(\sqrt{x.re \cdot x.re + x.im \cdot x.im}\right) \cdot y.re - \tan^{-1}_* \frac{x.im}{x.re} \cdot y.im} \cdot \sqrt[3]{{\left(\cos \left(\log \left(\sqrt{x.re \cdot x.re + x.im \cdot x.im}\right) \cdot y.im + \tan^{-1}_* \frac{x.im}{x.re} \cdot y.re\right)\right)}^{3}}\\
\mathbf{elif}\;x.re \le -3.32385463119362289 \cdot 10^{-304}:\\
\;\;\;\;\frac{\sqrt[3]{{\left(\frac{-1}{x.re}\right)}^{\left(-y.re\right)}} \cdot \sqrt[3]{{\left(\frac{-1}{x.re}\right)}^{\left(-y.re\right)}}}{\frac{e^{\tan^{-1}_* \frac{x.im}{x.re} \cdot y.im}}{\sqrt[3]{{\left(\frac{-1}{x.re}\right)}^{\left(-y.re\right)}}}}\\
\mathbf{elif}\;x.re \le 1.8132444825100107 \cdot 10^{-270}:\\
\;\;\;\;e^{\log \left(\log \left(e^{\sqrt{x.re \cdot x.re + x.im \cdot x.im}}\right)\right) \cdot y.re - \tan^{-1}_* \frac{x.im}{x.re} \cdot y.im}\\
\mathbf{else}:\\
\;\;\;\;\frac{{x.re}^{y.re}}{e^{\tan^{-1}_* \frac{x.im}{x.re} \cdot y.im}}\\
\end{array}double f(double x_re, double x_im, double y_re, double y_im) {
double r14735 = x_re;
double r14736 = r14735 * r14735;
double r14737 = x_im;
double r14738 = r14737 * r14737;
double r14739 = r14736 + r14738;
double r14740 = sqrt(r14739);
double r14741 = log(r14740);
double r14742 = y_re;
double r14743 = r14741 * r14742;
double r14744 = atan2(r14737, r14735);
double r14745 = y_im;
double r14746 = r14744 * r14745;
double r14747 = r14743 - r14746;
double r14748 = exp(r14747);
double r14749 = r14741 * r14745;
double r14750 = r14744 * r14742;
double r14751 = r14749 + r14750;
double r14752 = cos(r14751);
double r14753 = r14748 * r14752;
return r14753;
}
double f(double x_re, double x_im, double y_re, double y_im) {
double r14754 = x_re;
double r14755 = -1.669808635902091e+152;
bool r14756 = r14754 <= r14755;
double r14757 = -1.0;
double r14758 = r14757 / r14754;
double r14759 = y_re;
double r14760 = -r14759;
double r14761 = pow(r14758, r14760);
double r14762 = cbrt(r14761);
double r14763 = r14762 * r14762;
double r14764 = x_im;
double r14765 = atan2(r14764, r14754);
double r14766 = y_im;
double r14767 = r14765 * r14766;
double r14768 = exp(r14767);
double r14769 = r14768 / r14762;
double r14770 = r14763 / r14769;
double r14771 = -1.5993696563270364e+57;
bool r14772 = r14754 <= r14771;
double r14773 = r14754 * r14754;
double r14774 = r14764 * r14764;
double r14775 = r14773 + r14774;
double r14776 = sqrt(r14775);
double r14777 = log(r14776);
double r14778 = r14777 * r14759;
double r14779 = r14778 - r14767;
double r14780 = exp(r14779);
double r14781 = r14777 * r14766;
double r14782 = r14765 * r14759;
double r14783 = r14781 + r14782;
double r14784 = cos(r14783);
double r14785 = 3.0;
double r14786 = pow(r14784, r14785);
double r14787 = cbrt(r14786);
double r14788 = r14780 * r14787;
double r14789 = -3.323854631193623e-304;
bool r14790 = r14754 <= r14789;
double r14791 = 1.8132444825100107e-270;
bool r14792 = r14754 <= r14791;
double r14793 = exp(r14776);
double r14794 = log(r14793);
double r14795 = log(r14794);
double r14796 = r14795 * r14759;
double r14797 = r14796 - r14767;
double r14798 = exp(r14797);
double r14799 = pow(r14754, r14759);
double r14800 = r14799 / r14768;
double r14801 = r14792 ? r14798 : r14800;
double r14802 = r14790 ? r14770 : r14801;
double r14803 = r14772 ? r14788 : r14802;
double r14804 = r14756 ? r14770 : r14803;
return r14804;
}



Bits error versus x.re



Bits error versus x.im



Bits error versus y.re



Bits error versus y.im
Results
if x.re < -1.669808635902091e+152 or -1.5993696563270364e+57 < x.re < -3.323854631193623e-304Initial program 34.2
Taylor expanded around 0 19.1
Taylor expanded around -inf 6.9
Simplified11.7
rmApplied add-cube-cbrt11.7
Applied associate-/l*11.7
if -1.669808635902091e+152 < x.re < -1.5993696563270364e+57Initial program 15.5
rmApplied add-cbrt-cube15.5
Simplified15.5
if -3.323854631193623e-304 < x.re < 1.8132444825100107e-270Initial program 30.7
Taylor expanded around 0 17.9
rmApplied add-log-exp33.7
if 1.8132444825100107e-270 < x.re Initial program 35.1
Taylor expanded around 0 22.3
Taylor expanded around inf 11.6
Simplified14.6
Final simplification14.2
herbie shell --seed 2020045
(FPCore (x.re x.im y.re y.im)
:name "powComplex, real part"
:precision binary64
(* (exp (- (* (log (sqrt (+ (* x.re x.re) (* x.im x.im)))) y.re) (* (atan2 x.im x.re) y.im))) (cos (+ (* (log (sqrt (+ (* x.re x.re) (* x.im x.im)))) y.im) (* (atan2 x.im x.re) y.re)))))