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Topic:
A=B*C how to get B?
Replies:
3
Last Post:
Jul 13, 2006 4:02 PM




Re: A=B*C how to get B?
Posted:
Jul 13, 2006 11:32 AM


On 13 Jul 2006 08:15:09 0700, meris300@gmail.com wrote:
>I have a system of equations that can be written in matrix vector >notation as follows: > >A(1*n)=B(1*m)*C(m*n) > >In a book i saw that B = A* C' * (C*C')^(1)
C'(CC')^(1) is called the pseudoinverse of C.
>However, i do not recall how to get to that solution. can anybody help >me with this?
AC' = BCC' => B = AC'(CC')^1 provided that the inverse exists. It does when C has rank n.



