Syntax
=====

.. code-block:: text

    /tablecloth
    /function_c
    /function = CALC_FONCTION (
        ◆/FFT = _F (
               ◆ FONCTION = function_c/function,
               ◇ METHODE =/"PROL_ZERO" (by default),
                           /"TRONCATURE ",
                           /"COMPLET ",
               # If: is_type (" FONCTION ") ==function_c
                   ◇ SYME =/"OUI" (by default),
                            /"NON ",
            ),
          /DERIVE = _F (
               ◇ METHODE = "DIFF_CENTREE ",
               ◆ FONCTION = function,
            ),
          /INTEGRE = _F (
               ◇ METHODE =/"SIMPSON ",
                           /"TRAPEZE" (by default),
               ◆ FONCTION = function,
               ◇ COEF = float,
            ),
          /SPEC_OSCI = _F (
               ◇ TYPE_RESU =/"NAPPE" (by default),
                             /"FONCTION ",
               ◇ METHODE =/"NIGAM" (by default),
                           /"HARMO ",
                           /"RICE ",
               ◆ FONCTION = function,
               ◇ AMOR_REDUIT = float,
               ◇ LIST_FREQ = listr8,
               ◇ FREQ = float,
               ◆ NORME = float,
               ◇ NATURE =/"DEPL ",
                          /"VITE ",
                          /"ACCE" (by default),
               # If: not equal_to (" METHODE ", 'RICE')
                   ◇ NATURE_FONC = "ACCE ",
               # If: equal_to (" METHODE ", 'RICE')
                   ◆ DUREE = float,
                   ◇ NATURE_FONC = "DSP ",
            ),
          /DSP = _F (
               ◆ FONCTION = function,
               ◆ AMOR_REDUIT = float,
               ◆ NORME = float,
               ◆/LIST_FREQ = listr8,
                 /FREQ_PAS = float,
               ◇ NB_ITER = int (default: 10),
               ◇ FREQ_FILTRE_ZPA = float,
               ◇ NB_FREQ_LISS = int,
               ◆ FREQ_COUP = float,
               ◆ DUREE = float,
               ◇ FRACT = float (default: 0.5),
            ),
          /CORR_ACCE = _F (
               ◆ FONCTION = function,
               ◆ METHODE =/"FILTRAGE ",
                           /"POLYNOME ",
               # If: equal_to (" METHODE ", 'FILTRAGE')
                   ◇ FREQ_FILTRE = float (default: 0.05),
               # If: equal_to (" METHODE ", 'POLYNOME')
                   ◇ CORR_DEPL =/"OUI ",
                                 /"NON" (by default),
            ),
          /COMB = _F (
               ◆ FONCTION = tablecloth/function,
               ◆ COEF = float,
            ),
          /COMB_C = _F (
               ◆ FONCTION = tablecloth/function_c/function,
               ◆/COEF_R = float,
                 /COEF_C = complex,
            ),
          /MULT = _F (
               ◆ FONCTION = tablecloth/function_c/function,
            ),
          /ASSE = _F (
               ◆ FONCTION = function,
               ◇ SURCHARGE =/"DROITE" (by default),
                             /"GAUCHE ",
            ),
          /INVERSE = _F (
               ◆ FONCTION = function,
            ),
          /ABS = _F (
               ◆ FONCTION = function,
            ),
          /ENVELOPPE = _F (
               ◆ FONCTION = tablecloth/function,
               ◇ CRITERE =/"SUP" (by default),
                           /"INF ",
            ),
          /COMPOSE = _F (
               ◆ FONC_RESU = function,
               ◆ FONC_PARA = function,
            ),
          /EXTRACTION = _F (
               ◆ FONCTION = function_c,
               ◆ PARTIE =/"REEL ",
                          /"IMAG ",
                          /"MODULE ",
                          /"PHASE ",
            ),
          /PUISSANCE = _F (
               ◆ FONCTION = tablecloth/function,
               ◇ EXPOSANT = int (default: 1),
            ),
          /PROL_SPEC_OSCI = _F (
               ◆ FONCTION = function,
               ◆ NORME = float,
               ◆ DEPL_MAX = float,
            ),
          /INTEGRE_FREQ = _F (
               ◆ FONCTION = function,
               ◇ NIVEAU =/1,
                          /2 (by default),
               ◇ FREQ_FILTRE = float,
               ◆ FREQ_COUP = float,
            ),
          /DERIVE_FREQ = _F (
               ◆ FONCTION = function,
               ◇ NIVEAU =/1,
                          /2 (by default),
               ◇ FREQ_COUP = float (default: 50.0),
            ),
          /LISS_ENVELOP = _F (
               ◆/NAPPE = tablecloth,
                 /FONCTION = function,
                 /TABLE = table,
               ◇ LIST_AMOR = float,
               ◆ OPTION =/"CONCEPTION ",
                          /"VERIFICATION ",
               # If: equal_to (" OPTION ", 'VERIFICATION')
                   ◇ ELARG = float,
               ◇ FREQ_MIN = float,
               ◇ FREQ_MAX = float,
               ◇ LIST_FREQ = float,
               ◇ NB_FREQ_LISS = int (default: (10,)),
               ◇ ZPA = float,
            ),
          /FRACTILE = _F (
               ◆ FONCTION = tablecloth/function,
               ◇ FRACT = float (default: 1.0),
            ),
          /REGR_POLYNOMIALE = _F (
               ◆ FONCTION = function,
               ◆ DEGRE = int,
            ),
          /MOYENNE = _F (
               ◆ FONCTION = tablecloth/function,
            ),
          /COHERENCE = _F (
               ◆ NAPPE_1 = tablecloth,
               ◆ NAPPE_2 = tablecloth,
               ◇ FREQ_COUP = float,
               ◇ OPTION =/"DUREE_PHASE_FORTE ",
                          /"TOUT" (by default),
               # If: equal_to (" OPTION ", 'DUREE_PHASE_FORTE')
                   ◇ BORNE_INF = float (default: 0.05),
                   ◇ BORNE_SUP = float (default: 0.95),
               ◇ NB_FREQ_LISS = int (default: 12),
            ),
          /INTERPOL_FFT = _F (
               ◆ FONCTION = function,
               ◆ PAS_INST = float,
               ◇ PRECISION = float (default: 0.01),
            ),
        # If: exists (" COMB ") or exists (" COMB_C ") or exists (" REGR_POLYNOMIALE ") or exists (" MULT ")
            ◇ LIST_PARA = listr8,
        ◇ NOM_PARA =/"DX",
                     /"DY",
                     /"DZ",
                     /"DRX ",
                     /"DRY ",
                     /"DRZ ",
                     /"DTAN ",
                     /"TEMP ",
                     /"TSEC ",
                     /"INST ",
                     /"X",
                     /"Y",
                     /"Z",
                     /"EPSI ",
                     /"META ",
                     /"FREQ ",
                     /"PULS ",
                     /"DSP ",
                     /"AMOR ",
                     /"ABSC ",
                     /"SIGM ",
                     /"HYDR ",
                     /"SECH ",
                     /"PORO ",
                     /"SAT ",
                     /"IRRA ",
                     /"PGAZ ",
                     /"PCAP ",
                     /"PLIQ ",
                     /"PVAP ",
                     /"PAD ",
                     /"VITE ",
                     /"ENDO ",
                     /"NORM ",
                     /"EPAIS ",
                     /"EXCENT ",
                     /"NEUT1 ",
                     /"NEUT2 ",
                     /"NEUT3 ",
                     /"NEUT4 ",
                     /"XF",
                     /"YF",
                     /"ZF",
                     /"NUME_ORDRE ",
        ◇ NOM_RESU = text,
        ◇ INTERPOL =/"LIN ",
                     /"LOG ",
        ◇ PROL_DROITE =/"CONSTANT ",
                        /"LINEAIRE ",
                        /"EXCLU ",
        ◇ PROL_GAUCHE =/"CONSTANT ",
                        /"LINEAIRE ",
                        /"EXCLU ",
        ◇ NOM_PARA_FONC =/"DX",
                          /"DY",
                          /"DZ",
                          /"DRX ",
                          /"DRY ",
                          /"DRZ ",
                          /"DTAN ",
                          /"TEMP ",
                          /"TSEC ",
                          /"INST ",
                          /"X",
                          /"Y",
                          /"Z",
                          /"EPSI ",
                          /"META ",
                          /"FREQ ",
                          /"PULS ",
                          /"DSP ",
                          /"AMOR ",
                          /"ABSC ",
                          /"SIGM ",
                          /"HYDR ",
                          /"SECH ",
                          /"PORO ",
                          /"SAT ",
                          /"IRRA ",
                          /"PGAZ ",
                          /"PCAP ",
                          /"PLIQ ",
                          /"PVAP ",
                          /"PAD ",
                          /"VITE ",
                          /"ENDO ",
                          /"NORM ",
                          /"EPAIS ",
                          /"EXCENT ",
                          /"NEUT1 ",
                          /"NEUT2 ",
                          /"NEUT3 ",
                          /"NEUT4 ",
                          /"XF",
                          /"YF",
                          /"ZF",
                          /"NUME_ORDRE ",
        ◇ INTERPOL_FONC =/"LIN ",
                          /"LOG ",
        ◇ PROL_DROITE_FONC =/"CONSTANT ",
                             /"LINEAIRE ",
                             /"EXCLU ",
        ◇ PROL_GAUCHE_FONC =/"CONSTANT ",
                             /"LINEAIRE ",
                             /"EXCLU ",
        ◇ INFO =/1 (by default),
                 /2,
    )
    
    ◆: mandatory
    ◇: optional
    : present by default
    &: together
    /: only one among
    |: several possible choices