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Re: Matrix calculus [message #62850 is a reply to message #62843]

Thu, 09 October 2008 10:51

jameskuyper
Messages: 79
Registered: October 2007

Member

Kenneth P. Bowman wrote:
> In article
> <2fa450be-1a5e-4efd-a703-b6bb2e879383@k30g2000hse.googlegroups.com>,
> silviadncl@gmail.com wrote:
>
>> How can i compute eigenvalues and eigenvectors of a complex
>> matrix(hermitian)?
>> Thank you
>
> LA_EIGENQL

The documentation for LA_EIGENQL says that it is for "real
nonsymmetric or complex non-Hermitian array A". I don't think that
means that it won't work on real symmetric arrays, or complex
Hermitian arrays, but it does mean that it wasn't optimized for such
arrays.

Take a look at <http://idlastro.gsfc.nasa.gov/idl_html_help/
IMSL_EIG.html>, and in particular, the /SYMMETRIC option.

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[Message index]

		Re: Matrix calculus By: Kenneth P. Bowman on Thu, 09 October 2008 11:14
		Re: Matrix calculus By: jameskuyper on Thu, 09 October 2008 10:51
		Re: Matrix calculus By: Kenneth P. Bowman on Wed, 08 October 2008 06:44
		Re: Matrix calculus By: Craig Markwardt on Wed, 08 October 2008 11:44

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