\frac{\tan^{-1}_* \frac{im}{re}}{\log 10}\left(\sqrt[3]{\sqrt{\frac{1}{\sqrt{\log 10}}}} \cdot \sqrt[3]{\sqrt{\frac{1}{\sqrt{\log 10}}}}\right) \cdot \left(\sqrt[3]{\sqrt{\frac{1}{\sqrt{\log 10}}}} \cdot \left(\sqrt{\frac{1}{\sqrt{\log 10}}} \cdot \left(\tan^{-1}_* \frac{im}{re} \cdot \sqrt{\frac{1}{\log 10}}\right)\right)\right)double f(double re, double im) {
double r38931 = im;
double r38932 = re;
double r38933 = atan2(r38931, r38932);
double r38934 = 10.0;
double r38935 = log(r38934);
double r38936 = r38933 / r38935;
return r38936;
}
double f(double re, double im) {
double r38937 = 1.0;
double r38938 = 10.0;
double r38939 = log(r38938);
double r38940 = sqrt(r38939);
double r38941 = r38937 / r38940;
double r38942 = sqrt(r38941);
double r38943 = cbrt(r38942);
double r38944 = r38943 * r38943;
double r38945 = im;
double r38946 = re;
double r38947 = atan2(r38945, r38946);
double r38948 = r38937 / r38939;
double r38949 = sqrt(r38948);
double r38950 = r38947 * r38949;
double r38951 = r38942 * r38950;
double r38952 = r38943 * r38951;
double r38953 = r38944 * r38952;
return r38953;
}



Bits error versus re



Bits error versus im
Results
Initial program 0.9
rmApplied add-sqr-sqrt0.9
Applied *-un-lft-identity0.9
Applied times-frac0.8
Taylor expanded around 0 0.8
rmApplied add-sqr-sqrt0.8
Applied associate-*l*0.8
rmApplied add-cube-cbrt0.1
Applied associate-*l*0.2
Final simplification0.2
herbie shell --seed 2019198
(FPCore (re im)
:name "math.log10 on complex, imaginary part"
(/ (atan2 im re) (log 10.0)))