[Scilab-users] Re : problem with matrix of polynomials

[Stéphane Mottelet]

Maybe an inversion made in state-space could me more reliable ?

S.

Le 09/03/2020 à 13:36, sgougeon at 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