.. highlight:: c .. _gf_retime: **[gf]** Real time =================================================== This is a specialisation of :ref:`gf_and_view` for imaginary Matsubara frequencies. Synopsis ------------ .. code:: gf The *Target* template parameter can take the following values: +-------------------------+-----------------------------------------------------+ | Target | Meaning | +=========================+=====================================================+ | scalar_valued | The function is scalar valued (double, complex...). | +-------------------------+-----------------------------------------------------+ | matrix_valued [default] | The function is matrix valued. | +-------------------------+-----------------------------------------------------+ Domain & mesh ---------------- Singularity ------------- The singularity is a high frequency expansion, :ref:`gf_tail`. Evaluation method --------------------- * Linear interpolation on the mesh. * Return type: * If Target==scalar_valued: a complex * If Target==matrix_valued: an object modeling ImmutableMatrix concept. * When the point is outside of the mesh, the evaluation of the gf returns: * the evaluation of the high frequency tail Data storage --------------- * If Target==scalar_valued : * `data_t`: 1d array of complex. * g.data()(i) is the value of g for the i-th point of the mesh. * If Target==matrix_valued : * `data_t`: 3d array (C ordered) of complex. * 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 --------- .. literalinclude:: /documentation/examples/triqs/gfs/gf_retime_0.cpp :language: cpp .. literalinclude:: /documentation/examples/triqs/gfs/gf_retime_0.output