Services & Resources / Wolfram Forums / MathGroup Archive
-----

MathGroup Archive 2009

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

Search the Archive

Re: Options for Eigenvalues

  • To: mathgroup at smc.vnet.net
  • Subject: [mg96140] Re: [mg96100] Options for Eigenvalues
  • From: Bob Hanlon <hanlonr at cox.net>
  • Date: Fri, 6 Feb 2009 04:13:39 -0500 (EST)
  • Reply-to: hanlonr at cox.net

Options, Definition, or Information show that Eigenvalues has the option 
Method. For example,

Options[Eigenvalues]

{Cubics->False,Method->Automatic,Quartics->False}

Enter an invalid Method

Eigenvalues[{{a, b}, {c, d}}, Method -> Wrong];

Eigenvalues::emeth: The method specified by Method -> Wrong should be 
either Automatic or Arnoldi. >>

It appears that the only valid Method values are Automatic or Arnoldi



Bob Hanlon


On Thu, Feb 5, 2009 at 7:01 AM , Sebastian Meznaric wrote:

> I have recently found out, reading some of the older messages in this
> newsgroup, that Eigenvalues has an undocumented Method option. Does
> someone know what methods, aside from Arnoldi, can be specified and
> what other options there may be?
>
> Although Mathematica documentation is fairly good, it still leaves
> plenty to be desired.


  • Prev by Date: Mathematica 7.0.0 and X11 forwarding over SSH
  • Next by Date: Re: FindFit & NIntegrate
  • Previous by thread: Re: Options for Eigenvalues
  • Next by thread: Re: Options for Eigenvalues