Generalities
===========

This command is used to calculate a set of elementary vectors (corresponding to a selected option). The created concept of type vect_elem_* can then be assembled by the operator ASSE_VECTEUR [:external:ref:`U4.42.03 <U4.42.03>`] can then be assembled by the operator [] to give a second member of type cham_no.

The options available are:


.. csv-table::

    "'CHAR_MECA'", "to get the second member of a mechanical problem,"
    "'CHAR_THER'", "to get the second member of a thermal problem,"
    "'CHAR_ACOU'", "to get the second member of an acoustic problem,"