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Subject: Re: Matrix decomposition in vectors
Date: Tue, 27 Jan 2009 16:57:01 +0000 (UTC)
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"John D'Errico" <woodchips@rochester.rr.com> wrote in message <glknao$qv$1@fred.mathworks.com>...
> "Umair Mansoor" <umairbinmansoor@hotmail.com> wrote in message <glkkq2$8i2$1@fred.mathworks.com>...
> > Can someone tell me how can I decompose a matrix in vectors, like, a 2x2 matrix in to the product of a 2x1 and 1x2 vectors?
> 
> In general, this is impossible, unless the 2x2 matrix
> is singular. For higher dimensioned matrices, the
> matrix must be rank 1 to be decomposed in this way.
> 
> So is your 2x2 matrix singular? I.e., is it a rank 1 matrix?
> 
> John

I just know that its symmetric