\frac{\tan^{-1}_* \frac{im}{re}}{\log 10}double f(double re, double im) {
double r65925 = im;
double r65926 = re;
double r65927 = atan2(r65925, r65926);
double r65928 = 10.0;
double r65929 = log(r65928);
double r65930 = r65927 / r65929;
return r65930;
}