From: gmres error on 7 Mar 2007 02:17 Hi guys, I keep getting the following error. Any idea how to get around this? Thanks The error message: ================================== The right hand side vector is all zero so gmres returned an all zero solution without iterating. ??? Error using ==> rdivide Matrix dimensions must agree. Error in ==> gmres at 419 stagtest(ind) = additive(ind) ./ x; Error in ==> PolyWghLsq at 43 poly = gmres(mat,rh);
From: Titus on 7 Mar 2007 03:53 Hi, is the first sentence true? Your right hand side is all zero? In this case calling gmres will not give a meaningful answer (it would always "only" find the trivial solution x=0). Titus "gmres error" <gmres(a)error.org> schrieb im Newsbeitrag news:ef4fb86.-1(a)webcrossing.raydaftYaTP... > Hi guys, > > I keep getting the following error. Any idea how to get around this? > > Thanks > > The error message: > ================================== > The right hand side vector is all zero so gmres > returned an all zero solution without iterating. > ??? Error using ==> rdivide > Matrix dimensions must agree. > > Error in ==> gmres at 419 > stagtest(ind) = additive(ind) ./ x; > > Error in ==> PolyWghLsq at 43 > poly = gmres(mat,rh);
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