\frac{\tan^{-1}_* \frac{im}{re}}{\log 10}double f(double re, double im) {
double r899622 = im;
double r899623 = re;
double r899624 = atan2(r899622, r899623);
double r899625 = 10.0;
double r899626 = log(r899625);
double r899627 = r899624 / r899626;
return r899627;
}