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Re: Large array memory problem. [message #46462 is a reply to message #46412]

Wed, 23 November 2005 11:19

news.qwest.net
Messages: 137
Registered: September 2005

Senior Member

"Carolina" <c.c.calderon@gmail.com> wrote in message
news:1132769539.270480.61990@o13g2000cwo.googlegroups.com...
>
> Marius Hagen wrote:
>> I often find myself working with large arrays. Usually, these are
>> sparse, and so I can make use of sparse storage techniques to make
>> matrix multiplication and the like tractable.
>
> Does anyone know a clever trick to compute inverse of large sparse
> matrices?
>
> Thanks for all the replies,
>
> Carolina.
>

IDL has some functions for sparse arrays.
For example see the IDL help:
http://idlastro.gsfc.nasa.gov/idl_html_help/mathematics15.ht ml

Depending on your situation you may need to look at some other
code (netlib.org for example)
http://netlib.org/sparse/index.html
or I've heard matlab has some good sparse array routines as well.

Cheers,
bob

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[Message index]

		Large array memory problem. By: Pitufa on Tue, 22 November 2005 04:39
		Re: Large array memory problem. By: Marius Hagen on Wed, 23 November 2005 12:43
		Re: Large array memory problem. By: news.qwest.net on Wed, 23 November 2005 11:19
		Re: Large array memory problem. By: Pitufa on Wed, 23 November 2005 10:12
		Re: Large array memory problem. By: Marius Hagen on Tue, 22 November 2005 14:16
		Re: Large array memory problem. By: Nigel Wade on Mon, 28 November 2005 03:40

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