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$$$$ INVE     NOTICE  CHAT      11/09/12    21:16:38     7124           
                                             DATE     11/09/12

  Operateur INVERSE                        Voir aussi :
    -----------------   
    RES2 = INVE  |  MAI1  | ;
                 |  CHP1  |


    Description:
    ____________

       1st function:
       -------------

   The INVE operator makes it possible to change:
     - the description direction of one or several lines in the MAILLAGE
       type object MAI1 (SEG2/SEG3 element type),
     - the orientation of the "orientable" elements in the object MAI1
       (MAILLAGE type) (possible element types are TRI3/QUA4/TRI6/QUA8),
   and creates a RES2 MESH object (same element(s) as MAI1).

   The input mesh MAI1 may be complex and the elements which cannot be 
 oriented stay unchanged.

       2nd function:
       -------------

   The INVE operator create the inverse of the field by point CHP1 with 
 respect to the '*' operator.  The result is a field by point similar 
 to the field CHP1 but whose components are the inverse of the value in 
 CHP1.  The CHP2 nature is identical to the CHP1 one.