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From: "lauradiara\@libero\.it" <lauradiara@libero.it>
To: "gsl-discuss" <gsl-discuss@sources.redhat.com>
To: "help-gsl help-gsl" <help-gsl@gnu.org>
Subject: Fwd:Strange error linear system
Date: Wed, 03 Dec 2003 13:05:00 -0000	[thread overview]
Message-ID: <HPBLOY$2C1D23A4DD16210CD99A2C4D4B0F7CF5@libero.it> (raw)

Hi,

can someone, more expert than me, tell me where is my problem?

I suspect than I'm not applying the rigth method.

Could you give me some advice?


Thanks


--Laura


************** my previuos email ***********


Hi all,

I have seen a strange error and I don't know the reason.

I have this matrix:

1x+2y=1
1x+2y=2

This linear system has no solutions (of couse): in my program (general purpose)
I use gsl_linalg_QR_lssolve to solve this system (because its det = 0) and I
obtain a solution!!!!

x0 = -8678521507207439.000000000000000000

y = +4339260753603721.000000000000000000

The same result is obtained with gsl_linalg_SV_solve.


I don't understand.


Can someone tell me my error and give me an explanation?

Thanks very much


--laura



                 reply	other threads:[~2003-12-03 13:05 UTC|newest]

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