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Re: Options for Eigenvalues

  • To: mathgroup at smc.vnet.net
  • Subject: [mg96134] Re: Options for Eigenvalues
  • From: "Sjoerd C. de Vries" <sjoerd.c.devries at gmail.com>
  • Date: Fri, 6 Feb 2009 04:12:34 -0500 (EST)
  • References: <gmecfo$adp$1@smc.vnet.net>

Hi Sebastian,

>From the error message you get when you enter an non-existing method
(e.g., Method->"EducatedGuess") it appears that the only other method
apart from Arnoldi is Automatic.

WRT other options:

In[3]:= Options[Eigenvalues]

Out[3]= {Cubics -> False, Method -> Automatic, Quartics -> False}

gives you the default options.

Cheers -- Sjoerd

On Feb 5, 11:45 am, Sebastian Meznaric <mezna... at gmail.com> 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.



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