Manual pages | Cast3M

$$$$ DIAG     NOTICE  CHAT      11/09/12    21:15:53     7124           
                                             DATE     11/09/12
                                             
  Operateur DIAGNEG                         Voir aussi :
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    N1 = DIAGNEG RIG1 ;


    Description :
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    The DIAGNEG  operator gives the number of negative eigenvalues of
 a stiffness matrix. (after deduction of Lagrangian multipliers)

    Contents :
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    RIG1  : stiffness matrix (RIGIDITE type)

    N1    : number of negative eigenvalues (ENTIER type)