2. Syntax#

formula = DEFI_PROP_ALEA (
    ◆ INIT_ALEA = int,
    ◆ MEDIANE = float,
    ◆ COEF_VARI = float,
    ◆ | LONG_CORR_X = float,
      | LONG_CORR_Y = float,
      | LONG_CORR_Z = float,
    ◇/PRECISION = float,
      /NB_TERM = int,
    # If: exists ('LONG_CORR_X')
        ◆ X_ MINI = float,
        ◆ X_ MAXI = float,
        ◆ NB_TERM_X = int,
    # If: exists ('LONG_CORR_Y')
        ◆ Y_ MINI = float,
        ◆ Y_ MAXI = float,
        ◆ NB_TERM_Y = int,
    # If: exists ('LONG_CORR_Z')
        ◆ Z_ MINI = float,
        ◆ Z_ MAXI = float,
        ◆ NB_TERM_Z = int,
)

◆: mandatory
◇: optional
: present by default
&: together
/: only one among
|: several possible choices