.. _R5.01.03: **r5.01.03** Modal parameters and the norm of eigenvectors ============================================================= **Summary:** In this document, we describe: *the different possibilities in*Code_Aster* to standardize the specific modes, * the important modal parameters associated with natural modes. .. toctree:: :hidden: self .. toctree:: :maxdepth: 2 :numbered: D_finition_du_probl_me_aux_valeurs_propres Norme_des_modes_propres_du_probl_me_g_n_ralis_ Norme_des_modes_propres_du_probl_me_quadratique Param_tres_modaux_associ_s_pour_le_probl_me_g_n_ralis_ Param_tres_modaux_associ_s_pour_le_probl_me_quadratique Bibliographie Description_des_versions_du_document