Services & Resources / Wolfram Forums / MathGroup Archive

MathGroup Archive 2009

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: Ill-conditioned linear system

  • To: mathgroup at
  • Subject: [mg104328] Re: Ill-conditioned linear system
  • From: guerom00 <guerom00 at>
  • Date: Wed, 28 Oct 2009 04:05:30 -0500 (EST)
  • References: <hc6gl0$5r2$>

For what it's worse, it seems that instead of solving Ax=b, solving
Transpose[A].Ax=Transpose[A]b is more stable numerically=85
Maybe it has to do with the fact that Transpose[A].A has some
properties (symetric and positive definite)
I'll try to explore this lead=85

  • Prev by Date: ploting in 3D HELP
  • Next by Date: Re: presentations
  • Previous by thread: Re: Ill-conditioned linear system
  • Next by thread: presentations