Purpose
====

Create or complete a result by calculating fields by element or at the nodes (constraints, deformations,...).

The concept result product is either created or modified, i.e. the call to CALC_CHAMP is done as follows:

.. code-block:: python

    resu = CALC_CHAMP (reuse=resu, RESULTAT =resu,...)

or else

.. code-block:: python

    resu1 = CALC_CHAMP (RESULTAT =resu,...)