\frac{\tan^{-1}_* \frac{im}{re}}{\log 10}double f(double re, double im) {
double r598686 = im;
double r598687 = re;
double r598688 = atan2(r598686, r598687);
double r598689 = 10.0;
double r598690 = log(r598689);
double r598691 = r598688 / r598690;
return r598691;
}