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$$$$ XTY      NOTICE  CHAT      11/09/12    21:18:36     7124           
                                             DATE     11/09/12
                                             
  Operateur XTY                            Voir aussi :
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    FLOT1 = XTY  CHPO1 CHPO2 LMOTS1 LMOTS2 ;

    LREE11 = XTY  LICHP1 LICHP2 LMOTS1 LMOTS2 ;


    Description :
    ____________

    The XTY operator calculates the scalar product of two fields 
 by adding the products of certain components term by term.
   The XTY operator calculates the scalar product of two fields 
 at the same indice of two lists and constructs a sequence of reals.


    Contents :
    __________

    CHPO1     : CHPOINT type object

    CHPO2     : CHPOINT type object

   LICHP1, LICHP2 : LISTCHPO type object

    LMOTS1    : list of the names of component of the CHPO1 to be 
                taken into account (LISTMOTS type)

    LMOTS2    : list of the corresponding component names of CHP2
                (LISTMOTS type)

    FLOT1     : scalar product (FLOTTANT type)

    LREE1     : LISTREEL tye object 

    Example :
    _________

    For doing the product  F * U  in dimension 3, the following
 component names will be used : UX UY UZ et FX FY FZ .


    CAUTION :
    _________

    The two LISTMOTS must have the same length.