Complex Argument

Function: int gsl_sf_complex_dilog_e (double r, double theta, gsl_sf_result * result_re, gsl_sf_result * result_im)

This function computes the full complex-valued dilogarithm for the complex argument @math{z = r \exp(i \theta)}. The real and imaginary parts of the result are returned in result_re, result_im.