I did some quick profiling, and the primary culprit seems to be that
T[0].change_ring(QQ) does two expensive echelonizing operations, each of
which last about 37 seconds. The specific function is 'echelon_form' in
Matrix_rational_dense.
The short answer is that the the class FreeModule_submodu
In researching python interfaces to opengl, I found a discussion from 2007
about using pyglet for 3D plotting in sage
(https://groups.google.com/forum/#!topic/sage-devel/AIyET83jB6A). But I
can find nothing beyond that to suggest why the project of incorporating
pyglet was dropped. (Pyglet is
Sage's "in" is not a mathematical "\in", Sage's "RR" is not the field of
> real numbers. Peter is arguing to make them behave more like they are.
> Others are arguing not to change these things for various reasons. (And I
> will not get myself tangled up in that, since I don't know enough abou
Thanks Peter. I agree that infinity in RR is a big problem. For those
following the discussion, Peter updated Trac ticket #11506 to reflect this
concern and it is now marked as a critical bug.
On Thursday, October 3, 2013 5:31:06 PM UTC-4, Peter Bruin wrote:
>
> Hello,
>
> from the perspecti
UTC-4, Michael Orlitzky wrote:
>
> On 10/03/2013 11:54 AM, Greg Laun wrote:
> > Out of curiosity, I decided to ask sage what it thought the imaginary
> > part of infinity was. I'm not quite sure that this should return 0.
> > Mathematica returns Indeterminat
Out of curiosity, I decided to ask sage what it thought the imaginary part
of infinity was. I'm not quite sure that this should return 0.
Mathematica returns Indeterminate, which seems like a better answer to me.
Has this been discussed elsewhere?
Thanks,
Greg
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s and give them a new name to
maintain backwards compatibility while we work out how the new system might
work.
My student is also rather excited by the idea of making sage interface with
Blender. I know a few people were asking for that.
Greg
On Friday, September 13, 2013 2:10:16 PM UTC-4, Greg
Hey everyone,
Thanks for all the input. I'll share the discussion with my student and
I'll send an update to this thread once we've decided what direction to go
in.
- Greg
On Friday, September 13, 2013 2:10:16 PM UTC-4, Greg Laun wrote:
>
> I have a student who speci
I have a student who specializes in 3d graphics (in particular writing very
fast physics and game engines) who has expressed interest in contributing
to Sage. From the sound of it, it would be very simple for him to
implement fast, responsive interactive 3d graphics, which I for one would
defi
On Wednesday, September 26, 2012 5:03:15 PM UTC-4, Simon King wrote:
>
> Hi Greg,
>
> On 2012-09-26, Greg Laun > wrote:
> >
> > sage: matrix(GL(2),2,[1,0,0,1]) in GL(2,CC)
> > True
>
> Do you mean "GF(2)" on the left hand side?
>
Ahh
Whoops, gmail sent the email before I was finished.
I think a more appropriate way to do the comparison would be to check
if self(x) == x. This is how contains is implemented in parent.pyx.
Any thoughts?
Thanks,
Greg
On Wednesday, September 26, 2012 4:07:31 PM UTC-4, Greg Laun wrote
Hi Everyone,
I'm sorry if this has been discussed, but I can't find a discussion. I
noticed the following behavior:
sage: matrix(GL(2),2,[1,0,0,1]) in GL(2,CC)
True
so 'in' ignores base ring. The problem is that __contains__ for
general_linear.pyx and special_linear.pyx only check whether a
made of the emacs IDE features. I know many sage
developers use emacs, so I was wondering if anyone had gotten ropemacs
or pymacs or something similar to work.
If so, would anybody be willing to document the procedure?
Thanks!
Greg Laun
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Okay, I'll get to work on that
Greg
On Jun 18, 10:39 am, Jason Grout wrote:
> On 6/17/10 10:23 AM, Greg Laun wrote:
>
> > Ourgeometrylab has a good deal of existing code for hyperbolic
> >geometry, and one of my goals this summer is to port it to Sage. I
> > spoke
Our geometry lab has a good deal of existing code for hyperbolic
geometry, and one of my goals this summer is to port it to Sage. I
spoke with Bill Goldman, who heads the lab, and he's on board with
GPLing the code and releasing it into the Sage code base if that's
something people want.
Right n
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