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, Alors T peut être calculé à partir des de la cartographie d'orientation brute sur la cristallite

, Le but est désormais de manipuler l'autre terme (le premier) dans l'expression B.8 pour l'écrire sous la forme S · ? cri bruit LLASS . Cette matrice est composée de deux parties : (1) une partie associée à la fidélité à la cartographie d'orientation brute est (? bruit LLASS (? x i )) i?{1;2, n?1;n} et en définissant leur voisinage pour calculer (1) les matrices locales de position relative ?X loc (? x i )

, ?t où R 1 et R 2 sont deux variables aléaoires suivant la distribution de taille, et v (R 1 ) et v (R 2 ) les vitesse d'évolution de taille associées à R 1 et R 2 . Comme R ppv , R 1 et R 2 sont trois variables aléatoires, une double convolution de variables aléatoires [266] pourrait être utilisée. Cela permettrait d'aboutir à la probabilité P (R) d'une rencontre entre un précipité