triqs::gfs::is_gf_real¶
#include <triqs/gfs.hpp>
Synopsis
template<typename G>bool is_gf_real (G const & g, double tolerance = 1.e-13)
is_gf_real(g, tolerance).
Template parameters¶
- G any Gf type
Parameters¶
- g a gf
- tolerance tolerance threshold
Returns¶
true iif the function g is real up to tolerance