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.