Maybe an inversion made in state-space could me more reliable ?
S.
Le 09/03/2020 à 13:36, sgoug...@free.fr a écrit :
Hello Federico,
cond() and rcond() do not accept rationals, but the determinant of A is very
close to 0:
--> det(A)
ans =
3.573D-10
------------------------
0.0000027s² +7.433D-10s³
This likely explains that the inversion is not reliable.
Regards
Samuel
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Stéphane Mottelet
Ingénieur de recherche
EA 4297 Transformations Intégrées de la Matière Renouvelable
Département Génie des Procédés Industriels
Sorbonne Universités - Université de Technologie de Compiègne
CS 60319, 60203 Compiègne cedex
Tel : +33(0)344234688
http://www.utc.fr/~mottelet
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