Syntax
=====
               

.. code-block:: text

    /Matr_asse_depl_c
    /Matr_asse_depl_r
    /Matr_asse_pres_c
    /mat_asse_pres_r
    /Matr_ass_temp_c
    /count_ass_temp_r = FACTORISER (
        ◇ reuse = <objet de MATR_ASSE >,
        ◆ MATR_ASSE = matr_asse_depl_c/matr_asse_depl_r/matr_asse_pres_c/matr_asse_pres_r/matr_asse_temp_c/matr_asse_temp_c/matr_asse_temp_r,
        ◇ METHODE =/"GCPC ",
                    /"LDLT ",
                    /"MULT_FRONT ",
                    /"MUMPS" (by default),
                    /"PETSC ",
        # If: equal_to (" METHODE ", 'MULT_FRONT')
            ◇ RENUM =/"MD",
                      /"MDA" (by default),
            ◇ STOP_SINGULIER =/"NON ",
                               /"OUI" (by default),
            ◇ NPREC = int (default: 8),
        # If: equal_to (" METHODE ", 'LDLT')
            ◇ RENUM = "RCMK ",
            ◇ STOP_SINGULIER =/"NON ",
                               /"OUI" (by default),
            ◇ NPREC = int (default: 8),
            ◇/BLOC_DEBUT = int,
              /DDL_DEBUT = int,
            ◇/BLOC_FIN = int,
              /DDL_FIN = int,
        # If: equal_to (" METHODE ", 'MUMPS')
            ◇ RENUM =/"AMD ",
                      /"AMF ",
                      /"AUTO" (by default),
                      /"METIS ",
                      /"PARMETIS ",
                      /"PORD ",
                      /"PTSCOTCH ",
                      /"QAMD ",
                      /"SCOTCH ",
            ◇ STOP_SINGULIER =/"NON ",
                               /"OUI" (by default),
            ◇ NPREC = int (default: 8),
            ◇ TYPE_RESOL =/"AUTO" (by default),
                           /"NONSYM ",
                           /"SYMDEF ",
                           /"SYMGEN ",
            ◇ PRETRAITEMENTS =/"AUTO" (by default),
                               /"SANS ",
            ◇ PCENT_PIVOT = int (default: 20),
            ◇ ELIM_LAGR =/"LAGR2" (by default),
                          /"NON ",
            ◇ GESTION_MEMOIRE =/"EVAL ",
                                /"IN_CORE" (by default),
                                /"OUT_OF_CORE ",
            ◇ ACCELERATION =/"AUTO" (by default),
                             /"EN",
                             /"FR+",
                             /"LR",
                             /"LR+",
            ◇ LOW_RANK_SEUIL = float (default: 0.0),
        # If: equal_to (" METHODE ", 'GCPC') or equal_to (" METHODE ", 'PETSC')
            ◇ PRE_COND =/"JACOBI ",
                         /"LDLT_DP ",
                         /"LDLT_INC" (by default),
                         /"LDLT_SP ",
                         /"SOR ",
            # If: equal_to (" PRE_COND ", 'LDLT_INC')
                ◇ NIVE_REMPLISSAGE = int (default: 0),
                ◇ REMPLISSAGE = float (default: 1.0),
                ◇ RENUM = "RCMK ",
            # If: is_in (" PRE_COND ", ('LDLT_SP', 'LDLT_DP'))
                ◇ GESTION_MEMOIRE =/"AUTO" (by default),
                                    /"IN_CORE ",
                ◇ PCENT_PIVOT = int (default: 20),
                ◇ REAC_PRECOND = int (default: 30),
                ◇ LOW_RANK_SEUIL = float (default: 1e-06),
                ◇ RENUM =/"METIS ",
                          /"PARMETIS ",
                          /"SANS" (by default),
            # If: equal_to (" PRE_COND ", 'JACOBI') or equal_to (" PRE_COND ", 'SOR')
                ◇ RENUM = "SANS ",
            # If: equal_to (" METHODE ", 'PETSC')
                ◇ OPTION_PETSC = text (default: ""),
        ◇ TITRE = text,
        ◇ INFO =/1,
                 /2,
    )
    
    ◆: mandatory
    ◇: optional
    : present by default
    &: together
    /: only one among
    |: several possible choices