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Re: Matrix rank [message #57546 is a reply to message #57544]

Fri, 14 December 2007 06:35

Vince Hradil
Messages: 574
Registered: December 1999

Senior Member

On Dec 14, 8:16 am, Wox <nom...@hotmail.com> wrote:
> Hi IDLers,
>
> Is there a routine available which calculates the rank of an (integer)
> matrix? Couldn't find it in the help and I would be surprised if it's
> not there. It's for knowing whether sets of linear equations have no
> solution, 1 solution or an infinite number of solutions.
>
> Thanks.

IDL can do SVD, can you get the rank from that? Look up SVDC in the
docs.

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[Message index]

		Re: Matrix rank By: d.poreh on Fri, 14 December 2007 09:26
		Re: Matrix rank By: d.poreh on Fri, 14 December 2007 09:19
		Re: Matrix rank By: Vince Hradil on Fri, 14 December 2007 09:17
		Re: Matrix rank By: David Fanning on Fri, 14 December 2007 08:35
		Re: Matrix rank By: Vince Hradil on Fri, 14 December 2007 08:28
		Re: Matrix rank By: David Fanning on Fri, 14 December 2007 07:57
		Re: Matrix rank By: Wox on Fri, 14 December 2007 07:44
		Re: Matrix rank By: Wox on Fri, 14 December 2007 07:42
		Re: Matrix rank By: d.poreh on Fri, 14 December 2007 07:41
		Re: Matrix rank By: Wox on Fri, 14 December 2007 07:25
		Re: Matrix rank By: Vince Hradil on Fri, 14 December 2007 06:35
		Re: Matrix rank By: Steve Eddins on Fri, 14 December 2007 10:06
		Re: Matrix rank By: Vince Hradil on Fri, 14 December 2007 09:49

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