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 msg...@gmail.com 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

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 Wittmsg...@gmail.com 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.

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 msg...@gmail.com 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.

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 msg...@gmail.com 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

[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 msg...@gmail.com wrote: Has something changed recently. I'm running v.4.3.5

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:

[sage-support] Re: Problem finding numeric eigenvectors

2010-06-06 Thread Rob Beezer
On Jun 6, 9:05 am, Mike Witt msg...@gmail.com 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

[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