[sage-support] Re: symbolic vector calculus

2008-07-21 Thread Tim Lahey
On Jul 21, 2008, at 4:17 PM, Ondrej Certik wrote: > > Do you have some FEM code in Python? > No, at the moment, it is split between Maple and MATLAB. I use Maple to derive the mass and stiffness element matrices and output a MATLAB function where I do the assembly and then the solution. I deriv

[sage-support] Re: symbolic vector calculus

2008-07-21 Thread Ondrej Certik
On Mon, Jul 21, 2008 at 10:20 PM, William Stein <[EMAIL PROTECTED]> wrote: > > On Mon, Jul 21, 2008 at 10:17 PM, Ondrej Certik <[EMAIL PROTECTED]> wrote: >> >> On Mon, Jul 21, 2008 at 10:12 PM, Tim Lahey <[EMAIL PROTECTED]> wrote: >>> >>> >>> On Jul 21, 2008, at 3:41 PM, Gary Furnish wrote: >>> >>

[sage-support] Re: symbolic vector calculus

2008-07-21 Thread Ondrej Certik
On Mon, Jul 21, 2008 at 10:12 PM, Tim Lahey <[EMAIL PROTECTED]> wrote: > > > On Jul 21, 2008, at 3:41 PM, Gary Furnish wrote: > >> >> On Mon, Jul 21, 2008 at 10:00 AM, William Stein <[EMAIL PROTECTED]> >> wrote: >>> On Mon, Jul 21, 2008 at 6:28 PM, <[EMAIL PROTECTED]> wrote: Hello all,

[sage-support] Re: symbolic vector calculus

2008-07-21 Thread William Stein
On Mon, Jul 21, 2008 at 10:12 PM, Tim Lahey <[EMAIL PROTECTED]> wrote: > > > On Jul 21, 2008, at 3:41 PM, Gary Furnish wrote: > >> >> On Mon, Jul 21, 2008 at 10:00 AM, William Stein <[EMAIL PROTECTED]> >> wrote: >>> On Mon, Jul 21, 2008 at 6:28 PM, <[EMAIL PROTECTED]> wrote: Hello all,

[sage-support] Re: symbolic vector calculus

2008-07-21 Thread Tim Lahey
On Jul 21, 2008, at 3:41 PM, Gary Furnish wrote: > > On Mon, Jul 21, 2008 at 10:00 AM, William Stein <[EMAIL PROTECTED]> > wrote: >> On Mon, Jul 21, 2008 at 6:28 PM, <[EMAIL PROTECTED]> wrote: >>> >>> Hello all, >>> >>> I have a simple question about the capabilities of Sage that I have >>> n

[sage-support] Re: Why is kernel computation for matrices over GF(2) so slow?

2008-07-21 Thread Martin Albrecht
I wrote this yesterday before my notebook broke down (which now seems to work again) so it is slightly outdated by William's comments but still has some more details: --- Hi Simon, You did nothing wrong and the function is not optimised yet but both doesn't seem to be the reason. I replicated

[sage-support] Re: Why standalone Python/Sage scripts take longer to run ?

2008-07-21 Thread Shing Hing Man
Thanks for all the reply! Shing On Jul 21, 5:26 pm, Robert Bradshaw <[EMAIL PROTECTED]> wrote: > On Jul 20, 2008, at 1:24 PM, Shing Hing Man wrote: > > > > > > > If I submit a command that takes a long time to run, > > > eg > > (1)  http://localhost:8000/simple/compute?session=(session) > > &code

[sage-support] Re: Working with big polynomials

2008-07-21 Thread William Stein
On Mon, Jul 21, 2008 at 8:27 PM, donu <[EMAIL PROTECTED]> wrote: > > I've been trying to continue learning Sage. This morning I translated > another of my scripts from Maple. This computes Hodge numbers of > complete intersections in projective space using a formula of > Hirzebruch. My first goa

[sage-support] Working with big polynomials

2008-07-21 Thread donu
I've been trying to continue learning Sage. This morning I translated another of my scripts from Maple. This computes Hodge numbers of complete intersections in projective space using a formula of Hirzebruch. My first goal was to make it logically correct, and I think it is. But now I need to wo

[sage-support] Re: Plans for a Sage port to Solaris ??

2008-07-21 Thread mabshoff
On Jul 21, 1:16 am, Pierre <[EMAIL PROTECTED]> wrote: > hi there, Hi Pierre, > just to feed michael's motivation, let me insist that a Solaris > version of SAGE would be fabulous. I'm thinking of using sage with our > students here (it would at the very least teach them some python, > which th

[sage-support] Re: bound a 3d plot

2008-07-21 Thread William Stein
On Mon, Jul 14, 2008 at 4:37 PM, Rose <[EMAIL PROTECTED]> wrote: > > Hi, > > I am drawing some parametric_plot3d, but when I display them, I would > prefer to see the result in a box centered at the origin of side of > length 4 instead of all my plot, because the plot can be too large. > > In oth

[sage-support] Re: symbolic vector calculus

2008-07-21 Thread William Stein
On Mon, Jul 21, 2008 at 6:28 PM, <[EMAIL PROTECTED]> wrote: > > Hello all, > > I have a simple question about the capabilities of Sage that I have > not been able to resolve by looking at the documentation. I often > find myself manipulating somewhat complex functions that take vector > argument

[sage-support] symbolic vector calculus

2008-07-21 Thread jdomke
Hello all, I have a simple question about the capabilities of Sage that I have not been able to resolve by looking at the documentation. I often find myself manipulating somewhat complex functions that take vector arguments. I then need to derive gradients, hessians, etc. I need to do this wit

[sage-support] Re: Why standalone Python/Sage scripts take longer to run ?

2008-07-21 Thread Robert Bradshaw
On Jul 20, 2008, at 1:24 PM, Shing Hing Man wrote: > > If I submit a command that takes a long time to run, > > eg > (1) http://localhost:8000/simple/compute?session=(session) > &code=factor(2^1000 > -1) > > then the immediately returned JSON will have status equals computing. > > I have modif

[sage-support] Re: about functions evaluation

2008-07-21 Thread Robert Bradshaw
On Jul 18, 2008, at 12:04 PM, aniura wrote: > Hi, > > I have no experience in sage, I began to use it two days ago because I > need arbitrary precision arithmetic and Octave is not so god for > that. > > I wanted to write a script where I evaluate a function which is also > written in a script. t

[sage-support] Re: Transitioning from Maple...

2008-07-21 Thread mabshoff
On Jul 20, 12:04 pm, Donu Arapura <[EMAIL PROTECTED]> wrote: hi Donu, > I apologize in advance for my somewhat rambling post. I don't have   > any really urgent > questions; just a few small ones, along with some comments. I'm an   > algebraic > geometer, so I use Macaulay 2 for certain things,

[sage-support] Re: Plans for a Sage port to Solaris ??

2008-07-21 Thread Pierre
hi there, just to feed michael's motivation, let me insist that a Solaris version of SAGE would be fabulous. I'm thinking of using sage with our students here (it would at the very least teach them some python, which they will use in 'real life' (ie working for a company...) even if they eventual