Re: [sage-support] Re: Error in EllipticCuve_from_cubic

2013-04-25 Thread John Cremona
On 24 April 2013 23:53, Victor Miller wrote: > John, Thanks. I just tried downloading the patch and applying it. I have > Sage 5.8. However, when I did > > patch constructor.py trac_3416_fixes.patch > > all of the patches were rejected :-(. > There are three dependent tickets wit their own pat

[sage-support] Re: plot3d using real-valued real-parameter functions but involving complex numbers as intermediates

2013-04-25 Thread GaryMak
Hi again the following is driving me absolutely nuts. I thought i had implemented all of the previous lessons you guys have taught me, but no matter how I re-wire this I cannot get it to work. The function f works fine btw, as a standalone function. But the minimize thing gives me all sorts of

[sage-support] solving integer linear equations

2013-04-25 Thread tvn
is there something in SAGE that solves integer linear equations ? essentially like normal equation solving but the results must be integers. Thanks , -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop

[sage-support] Re: solving integer linear equations

2013-04-25 Thread Volker Braun
sage: m = random_matrix(ZZ, 3) sage: m.smith_form() On Thursday, April 25, 2013 8:57:26 PM UTC+1, tvn wrote: > > is there something in SAGE that solves integer linear equations ? > essentially like normal equation solving but the results must be integers. > Thanks , > -- You received th

Re: [sage-support] solving integer linear equations

2013-04-25 Thread William Stein
Hi, I wrote some code (which was rather tricky to write!) that can find the kernel of a linear map over Z. This will give all solutions S to Ax = 0, if A is an integer matrix. This is useful since if you have any particular solution x to Ax=b, then all other solutions are of the form x + s for

Re: [sage-support] Re: "who" command - Sage Beginner's Guide example

2013-04-25 Thread João Alberto Ferreira
Thank you for the reply! I took note and I will use the show_identifiers() function whenever necessary, as the it seems more useful than the "who" command. João Alberto Ferreira. On Wednesday, April 24, 2013 10:36:45 PM UTC-3, William wrote: > > Hi, > > I've never heard of this "who" function,