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Math Help - need help to find out the element of a Matrix from matrix multiplication equation.

  1. #1
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    need help to find out the element of a Matrix from matrix multiplication equation.

    A=[a1 a2 a3 ........an] (1 by n matrix)
    B=[b1 b2 b3.........bn]T (n by 1 matrix)

    A.B=1 .........(1)

    I know the elements of A matrix.

    could any body help me to find out the element of B matrix?

    P.S.: A and B are not the square matrix.
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  2. #2
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    Re: need help to find out the element of a Matrix from matrix multiplication equation

    Quote Originally Posted by daspankaz View Post
    A=[a1 a2 a3 ........an] (1 by n matrix)
    B=[b1 b2 b3.........bn]T (n by 1 matrix)
    A.B=1 .........(1)
    I know the elements of A matrix.
    could any body help me to find out the element of B matrix?
    This cannot be done.
    Think about this: A=[2~3]~\&~B=[x~y] then A\cdot B^T=[2x+3y].

    There are infinitely many solutions for 2x+3y=1.
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