Ion Utility Functions
=====================

Utility Functions for Reading ``.recpot`` Files
-----------------------------------------------

.. autofunction:: ion_utils.get_ion_charge

.. autofunction:: ion_utils.interpolate_recpot


Utility Functions for Lattice Convolutions
------------------------------------------

Lattice Sum
^^^^^^^^^^^

.. autofunction:: ion_utils.lattice_sum

Exact Structure Factor
^^^^^^^^^^^^^^^^^^^^^^

.. autofunction:: ion_utils.structure_factor

Particle-Mesh Ewald Structure Factor
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

.. autofunction:: ion_utils.structure_factor_spline

Ion-ion Interaction Energy
--------------------------

.. autofunction:: ion_utils.ion_interaction_sum