I got the latest sage VM for windows 5.11 or whatever but when i start it
up...
1. Chrome is locked on Fullscreen how do I break out of that?
and once i get to a terminal...
2. How do I establish ssh to your vbox
username:sage?
pasword:sage?
machine address:?? (or how to find)
(ifconfig eth0 st
This is now
See http://trac.sagemath.org/ticket/15299
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As a workaround you probably can use analytic rank
E.analytic_rank(leading_coefficient=1)
(5, 3634.28250646374195)
The second number is the value of first non-vanishing derivative.
If you need more precision, you can set the precision in pari/gp
and do: gp.ellanalyticrank(gp(E)) -- it returns the
On 16 October 2013 13:54, Georgi Guninski wrote:
> After debugging this I saw the problem.
> In sha_tate.py:410
> you consider the first derivative non-zero and use it
> in computations, while in practice it is zero
> (e-15 vs error_bound=e-25).
This looks like a bug to me. Even with more work:
Thanks for reply and wait for the patch to re-install SageCell.
Thanks again
cch
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chu-ching huang於 2013年10月16日星期三UTC上午11時30分40秒寫道：
>
> Hi All,
>
> Following the installing guide of Sagecell site, I tried to install
> SageCell from Sage-5.12 source in Linux box. Almost operations can work on
> Sagecell; but while input the following simple code to plot, no result
> displayed
After debugging this I saw the problem.
In sha_tate.py:410
you consider the first derivative non-zero and use it
in computations, while in practice it is zero
(e-15 vs error_bound=e-25).
On Wed, Oct 16, 2013 at 10:56:27AM +0100, John Cremona wrote:
> We have theory that tells us that for curves of
On 10/16/13 6:30 AM, chu-ching huang wrote:
Following the installing guide of Sagecell site, I tried to install
The installation guide may be out of date. I'm glad to hear that
something worked, it seems.
SageCell from Sage-5.12 source in Linux box.
I haven't upgraded our patches to Sag
Hi All,
Following the installing guide of Sagecell site, I tried to install
SageCell from Sage-5.12 source in Linux box. Almost operations can work on
Sagecell; but while input the following simple code to plot, no result
displayed:
plot(sin(x),x)
And no error occurred.
Do I modify the setti
We have theory that tells us that for curves of analytic rank 0 or 1,
Sha is finite and while BSD is not completely proved for such curves,
the formula it claims for #Sha is certainly rational -- and Sage does
compute this exactly. But for analytic rank >1 the "analytic Sha" is
just the value pred
Why E.sha().an() = 0 and E.sha().an_numerical() = 1.0 ?
On 5.11 on linux and on cloud.sagemath.com:
sage: E=EllipticCurve(QQ,[0, 0, 1, -79,
342]);E.sha().an(),E.sha().an_numerical()
(0, 1.00)
#^ why different and 0 is integer ?
sage: E.sha().bound()
(0, 0)
sage: type(E.sha().an())
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