Re: [sage-support] Re: Problem finding numeric eigenvectors

2010-06-20 Thread Dr. David Kirkby
On 06/ 7/10 03:46 PM, Mike Witt wrote: On 06/06/2010 10:43:38 PM, Rob Beezer wrote: On Jun 6, 9:05 am, Mike Witt wrote: > This does kind of reinforce the concept, which I guess I've > heard expressed before here, that you have to be prepared > to update your sage build very frequently in order

Re: [sage-support] Re: Problem finding numeric eigenvectors

2010-06-07 Thread Mike Witt
On 06/07/2010 09:12:30 AM, Robert Bradshaw wrote: [...] downloading a whole new tarball is also safer in the sense that you can try it out, and if that doesn't work just nuke it and wait for the next release. It is nice to be able to have any number of installations in parallel (assuming th

Re: [sage-support] Re: Problem finding numeric eigenvectors

2010-06-07 Thread Robert Bradshaw
On Jun 7, 2010, at 7:46 AM, Mike Witt wrote: On 06/06/2010 10:43:38 PM, Rob Beezer wrote: On Jun 6, 9:05 am, Mike Witt wrote: > This does kind of reinforce the concept, which I guess I've > heard expressed before here, that you have to be prepared > to update your sage build very frequently in

Re: [sage-support] Re: Problem finding numeric eigenvectors

2010-06-07 Thread Mike Witt
On 06/06/2010 10:43:38 PM, Rob Beezer wrote: On Jun 6, 9:05 am, Mike Witt wrote: > This does kind of reinforce the concept, which I guess I've > heard expressed before here, that you have to be prepared > to update your sage build very frequently in order to keep > up with things. Exactly. ;-)

Re: [sage-support] Re: Problem finding numeric eigenvectors

2010-06-07 Thread Dr. David Kirkby
On 06/ 7/10 06:43 AM, Rob Beezer wrote: On Jun 6, 9:05 am, Mike Witt wrote: This does kind of reinforce the concept, which I guess I've heard expressed before here, that you have to be prepared to update your sage build very frequently in order to keep up with things. Exactly. ;-) But with

[sage-support] Re: Problem finding numeric eigenvectors

2010-06-06 Thread Rob Beezer
On Jun 6, 9:05 am, Mike Witt wrote: > This does kind of reinforce the concept, which I guess I've > heard expressed before here, that you have to be prepared > to update your sage build very frequently in order to keep > up with things. Exactly. ;-) But with sage -upgrade at a system prompt,

Re: [sage-support] Re: Problem finding numeric eigenvectors

2010-06-06 Thread Mike Witt
On 06/06/2010 08:45:53 AM, Rob Beezer wrote: Yes, there were changes, including the output format, as of 4.4 (about 7 weeks ago). See "eigenmatrix_right totally broken" at http://trac.sagemath.org/sage_trac/ticket/4756 Rob Ahh, well that explains some things. I had been watching: http://tra

[sage-support] Re: Problem finding numeric eigenvectors

2010-06-06 Thread Rob Beezer
Yes, there were changes, including the output format, as of 4.4 (about 7 weeks ago). See "eigenmatrix_right totally broken" at http://trac.sagemath.org/sage_trac/ticket/4756 Rob On Jun 6, 7:27 am, Mike Witt wrote: > Has something changed recently. I'm running v.4.3.5 > > [m...@vector ~]$ sage

Re: [sage-support] Re: Problem finding numeric eigenvectors

2010-06-06 Thread Mike Witt
Has something changed recently. I'm running v.4.3.5 [m...@vector ~]$ sage -- | Sage Version 4.3.5, Release Date: 2010-03-28 | | Type notebook() for the GUI, and license() for information.| --

[sage-support] Re: Problem finding numeric eigenvectors

2010-06-05 Thread Rob Beezer
Mike, "Right eigenvectors" should be column vectors placed on the right side of the matrix. The output is a triple for each eigenvalue: eigenvalue first, then a list of eigenvectors. While the eigenvectors print as rows, they will behave like columns when you want them to. Indexing into the out