Scilab Reference Manual |
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fullrfk — full rank factorization of A^k
[Bk,Ck]=fullrfk(A,k)
This function computes the full rank factorization of A^k i.e. Bk*Ck=A^k where Bk is full column rank and Ck full row rank. One has range(Bk)=range(A^k) and ker(Ck)=ker(A^k).
For k=1, fullrfk is equivalent to fullrf.
A=rand(5,2)*rand(2,5);[Bk,Ck]=fullrfk(A,3); norm(Bk*Ck-A^3,1)
F.D (1990);
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