Fwd: Re: URGENT: Matrix division problem?

["Ronald F. Boisvert" <boisvert@nist.gov>]

Sender: pozo@nist.gov
Subject: Re: URGENT: Matrix division problem?


Try another random matrix.  A must have certain properties, i.e. full  
rank, for the solution to be meaningful.

Quoting pohuty Lee <pohuty@gmail.com>:

> A and B are both r*m matrix Generate matrix by random function.
> Matrix A = Matrix.random(r,m);
> Matrix B = Matrix.random(r,m);
> I'm trying to work out the result of A.solve(B); Then, It gave me an  
> exception:
>
> Exception in thread "main" java.lang.RuntimeException: Matrix is  
> rank deficient.
>        at Jama.QRDecomposition.solve(QRDecomposition.java:185)
>        at Jama.Matrix.solve(Matrix.java:815)
>
> How could it be that? How can I get the right result? Thanks very
> much, I need use the result in my final project. This is URGENT!
>
> Regards
>
> --------------------------------------------------------------------------------
>
> pohuty
>
>
>
> ----- End forwarded message -----
>
>
>





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