Examples
========


.. code-block:: text


    # This example is only intended to give an idea of the syntax and

    # useful associated operators (for retrieving functions)

    # generated and their possible verification).

    # The interspectrum used has no meaning. There is no step

    # of use of generated functions (with a dyna_tran_modal by

    # example).

    # The zzzz180a and sdll107a test cases provide more comprehensive examples


    # Definition of interspectrum

    spect11 = DEFI_FONCTION (
NOM_PARA = 'FREQ',
VALE_C = (
0. , 10. , 0. ,
50.0, 10. , 0. ,
150. , 0.1, 0. ,
)
)


    spect12 = DEFI_FONCTION (
NOM_PARA = 'FREQ',
VALE_C = (
0. , 0.5, 0.8,
150. , 0.5, 0.8,
)
)


    spect22 = DEFI_FONCTION (
NOM_PARA = 'FREQ'
VALE_C = (
0. , 1. , 0. ,
150. , 1.. , 0. ,
)
)


    mat_int = DEFI_INTE_SPEC (
DIMENSION = 2,
PAR_FONCTION = (_F (NUME_ORDRE_I = 1,
NUME_ORDRE_J = 1,
FONCTION = sp11),
_F (NUME_ORDRE_I = 1,
NUME_ORDRE_J = 2,
FONCTION = sp12),
_F (NUME_ORDRE_I = 2,
NUME_ORDRE_J = 2,
FONCTION = sp22)
)
)


    # Generation of the two time functions via the data structure

    # interspectrum

    vect = GENE_FONC_ALEA (INTE_SPEC = mat_int,
DUREE_TIRAGE = 5. ,
NB_TIRAGE = 10,
)


    # Retrieving the two functions for example for a IMPR_FONCTION

    FONC1 = RECU_FONCTION (INTE_SPEC = vect,
NUME_ORDRE = 1)


    FONC2 = RECU_FONCTION (INTE_SPEC = VECT1,
NUME_ORDRE = 2)


    # Verification: Calculation of the interspectrum of the generated functions

    # Warning: the value given to NB_POIN is important. He is

    # desirable to take it equal to the number of points constituting

    # the functions (2*nb_fft if coming from GENE_FONC_ALEA).

    INTERS = CALC_INTE_SPEC (INST_INIT =0. ,
INST_FIN =50. ,
DUREE_ANALYSE =5. ,
DUREE_DECALAGE =5. ,
NB_POIN =2048,
FONCTION =( FONC1, FONC2,))


    # Retrieving the auto-spectrum of FONC1 for comparison to spetc11

    F11 = RECU_FONCTION (INTE_SPEC = INTERS,
NUME_ORDRE_I =1,
)