[sage-support] Re: How can I get a PDF from a .show() acting on an expression, from within the notebook ?

2010-06-05 Thread Rob Beezer
On Jun 3, 4:34 am, Pierre wrote: > I'm actually interested in this feature, too. Using > > sage: view(expr, viewer='pdf') > > is great, but produces a full page with a title. Is there an option to > produce a tiny PDF with just a formula ? Try the "tightpage" option: sage: latex.engine('pdflatex

[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

[sage-support] Problem finding numeric eigenvectors

2010-06-05 Thread Mike Witt
I'm confused about this, and hoping for some clarification ... sage: M=matrix([[0, .707-.707*i],[.707+.707*i, 0]]) sage: M = M.change_ring(CDF) sage: M [ 0 0.707 - 0.707*I] [0.707 + 0.707*I 0] sage: M.eigenvectors_left() ([0.999848988598 + 5.55111512313e-17*I, -0.999848

[sage-support] Re: Integrate dirichlet distribution problem

2010-06-05 Thread kcrisman
On Jun 4, 5:38 pm, Robert Dodier wrote: > On Jun 4, 7:48 am, John Reid wrote: > > > Implementing a function that evaluates the multinomial beta seems > > straightforward. I imagine I could do that if pointed in the right > > direction. But did you mean extending maxima so that it knows how to >

Re: [sage-support] Re: Using LiE

2010-06-05 Thread Dr. David Kirkby
On 06/ 4/10 06:21 AM, Thierry Dumont wrote: To compile Lie you must (or your systeme administrator) add some tools on your machine: -bison -the ncurses lib. On an Ubuntu machine, I installed (apt-get): libncurses5, libncursesw5 , ncurses-base ncurses-bin and bison. It will take 5 minutes to your

[sage-support] Re: Support for elliptic curves over rings?

2010-06-05 Thread John Cremona
On Jun 5, 3:47 am, Alasdair wrote: > Just applied the patch (thanks to some help!) and it works fine. Good! I wrote that patch 4 weeks ago and it had a positive review 2 weeks ago, but unfortunately did not get into the new release (4.4.3). Please let me know how you get on with it. John Cre