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Re: [Bug-gsl] possible matrix solver bug


From: Brian Gough
Subject: Re: [Bug-gsl] possible matrix solver bug
Date: Tue, 20 Sep 2011 16:34:11 +0100
User-agent: Wanderlust/2.15.6 (Almost Unreal) Emacs/23.3 Mule/6.0 (HANACHIRUSATO)

At Fri, 26 Aug 2011 16:13:46 +0800,
Andrew Wang wrote:

> I tried the linear algebra example with slight modification (do
> decompose and solve one more time) and got different results from the
> same matrix and vector.
> Did I miss something here?

Hello. 

The LU matrix is modified in place, with the original matrix being
replaced by the LU decomposition, so gsl_linalg_LU_decomp should only
be called once.

-- 
Brian Gough




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