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Re: pseudo code for doing SVD on 2D sparse array [message #64399 is a reply to message #64321]

Mon, 22 December 2008 07:07

Jeremy Bailin
Messages: 618
Registered: April 2008

Senior Member

On Dec 21, 6:41 am, erano <eran.o...@gmail.com> wrote:
> Hi,
> I wish to solve Ax=B
> A is sparse array (size m*n), in format of [ x_index, y_index, value ]
> B is vector length m
> x is unknown vector length n
> n=1,000,000
> m=2*n
>
> better to help with IDL code, but any idea is welcome!
>
> Eran

You said a couple of weeks ago that you'd gotten LINBCG to work on
this... what problems are you having with it?

-Jeremy.

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[Message index]

		pseudo code for doing SVD on 2D sparse array By: erano on Sun, 21 December 2008 03:41
		Re: pseudo code for doing SVD on 2D sparse array By: Evgenii Rudnyi on Mon, 22 December 2008 07:17
		Re: pseudo code for doing SVD on 2D sparse array By: Jeremy Bailin on Mon, 22 December 2008 07:07
		Re: pseudo code for doing SVD on 2D sparse array By: erano on Tue, 23 December 2008 06:58
		Re: pseudo code for doing SVD on 2D sparse array By: spellucci on Sun, 21 December 2008 08:30
		Re: pseudo code for doing SVD on 2D sparse array By: Brian Borchers on Sun, 21 December 2008 06:46

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