dft_tools/doc/reference/c++/gf/gf_retime.rst

.. highlight:: c

.. _gf_retime: 

gf<retime> 
===================================================

This is a specialisation of :ref:`gf_and_view` for imaginary Matsubara frequencies.
 
Domain & mesh
----------------


Singularity
-------------

Interpolation method
---------------------

Linear interpolation on the mesh.

Data storage
---------------

* `data_t` : 3d array (C ordered) of complex<double>.

* g.data()(i, range(), range()) is the value of g for the i-th point of the mesh.

HDF5 storage convention
---------------------------

h5 tag : `ReTime`

Examples
---------

.. compileblock:: 

    #include <triqs/gfs/retime.hpp>
    using namespace triqs::gfs;
    
    int main() {
      double tmin=0, tmax=10;    // the time interval
      auto n_times=100;          // we will have 100 points
      
      //we want a 2x2 matrix-valued Green function
      auto g=gf<retime>{ {tmin, tmax, n_times} , {2,2} };  
    };