[sage-support] Re: sage server in OS 10.6

2012-03-17 Thread Mike OS
I was using firefox primarily, but I think it happened with Safari. On Mar 16, 7:13 pm, Dan Drake wrote: > On Fri, 16 Mar 2012 at 04:11PM -0700, Mike OS wrote: > > When I save and quit the worksheet, I go back to my home page. > > If I click sign out, nothing happens. > > Are you using Firefox?

Re: [sage-support] Matrix Characteristic Polynomial

2012-03-17 Thread Justin C. Walker
On Mar 17, 2012, at 13:13 , firebird wrote: > I was expecting x^2 as the characteristic polynomial. What's gone > wrong? I believe that the characteristic polynomial of a matrix, M, is given as "det(\lambda I-M)" or something similar. In your case (a 12x12 matirx), you should expect a polyno

[sage-support] Matrix Characteristic Polynomial

2012-03-17 Thread firebird
I was expecting x^2 as the characteristic polynomial. What's gone wrong? sage: type(m) sage: m [ 00 1/400 1/400 -1/400 -1/4] [ 1/400 -1/400 1/400 -1/400] [ 0 1/400 -1/400 -1/400 1/40] [ 00 1/4

Re: [sage-support] Re: Vehicle routing problems in sage

2012-03-17 Thread Nathann Cohen
Hello !!! > Thanks! I spent some time with the graph and milp support today, and it's > exactly what I was looking for. Glad to hear it ! :-) > Do you have an idea of how the current > implementations scale with the size of the graph? Oh. Well, I do not use LP to sol