Carl wrote:
> Is there any chance that you've assigned a value to x earlier in your
> session, so that x is no longer a symbolic variable?
The code was executed in the first cell of the first worksheet that I
created after launching Sage 2.9 for the first time.
After closing the worksheet, reop
On Wednesday 19 December 2007 23:42, Bill Hart wrote:
> Here is a graph that uses slightly bigger coefficients, up to 1
> bits.
>
> http://sage.math.washington.edu/home/wbhart/flint-trunk/graphing/factor2.pn
>g
>
> I don't see the speed increase you mentioned for large coefficients,
> but this
Topic 1: isomorphisms between Weierstrass models
For Robert B as author of weierstrass_morphism.py: It's not a bug but
I would recommend that you test for equality of j-invariants before
doing the harder work (which you do by extracting 12th roots of the
ratio of the discriminants). Similarly i
What is lisp.run? I was doing a pretty simple calculation, which
ended up taking a long time (12+ hours, I was expecting maybe 30
minutes tops), and I noticed that lisp.run seemed to be doing all the
work. After poking around, my best guess is that it was somehow being
called by the abs() functi
Thursday 20 December 2007 16:08:16 tarihinde mhampton şunları yazmıştı:
> What is lisp.run?
As far as I know thats from clisp.
Regards,
ismail
--
Never learn by your mistakes, if you do you may never dare to try again.
--~--~-~--~~~---~--~~
To post to this grou
On Dec 20, 2007 7:08 AM, mhampton <[EMAIL PROTECTED]> wrote:
>
> What is lisp.run? I was doing a pretty simple calculation, which
lisp.run is the name of the clisp interpreter, which maxima uses.
So in your calculation, you were evidentily doing a big maxima
calculation.
> ended up taking a lon
On Dec 20, 2007 4:21 AM, John Cremona <[EMAIL PROTECTED]> wrote:
> Topic 2: package names.
>
> I am a little embarrassed that there is precisely one package (spkg)
> whose name is a person's name (especially when it apparently results
> in bug reports of the form "cremona causes fatal crash"). It
OK, I will give the server logs here in case they are of interest. I
am still not sure what went wrong. I will have to find a quicker way
to do my calculation - perhaps cast things to floats, and use python's
math.abs().
As a preamble to the server logs: it looked like I was dropped into a
pyth
Hi Joel,
Yes, it occurred to me this morning that conversion costs might be
getting in the way.
Does SAGE use the GP interpreter or the Pari library to do this
computation? If it is using the Pari library, and the data conversion
isn't quadratic time, then I don't think this should be a problem.
On Thursday 20 December 2007 10:56, Bill Hart wrote:
> Does SAGE use the GP interpreter or the Pari library to do this
> computation? If it is using the Pari library, and the data conversion
> isn't quadratic time, then I don't think this should be a problem.
The library and I think the conversio
On Dec 20, 2007 8:55 AM, mhampton <[EMAIL PROTECTED]> wrote:
>
> OK, I will give the server logs here in case they are of interest. I
> am still not sure what went wrong. I will have to find a quicker way
> to do my calculation - perhaps cast things to floats, and use python's
> math.abs().
If
On 20 Dec, 16:22, "Joel B. Mohler" <[EMAIL PROTECTED]> wrote:
> On Thursday 20 December 2007 10:56, Bill Hart wrote:
>
> > Does SAGE use the GP interpreter or the Pari library to do this
> > computation? If it is using the Pari library, and the data conversion
> > isn't quadratic time, then I don'
Hi Sage-Devel,
From
http://opendotdotdot.blogspot.com/2007/12/sage-does-maths-of-free-software.html
"One of the persistent myths about free software is that successes
like Linux are one-offs, and that the open source methodology can't be
applied easily to tackle complex software challenges. In
eclib is ok (though I was tempted to make if jeclib ;)) though it does
not capture the new modular symbol functionality, it is snappier than
(say) meclib. Of course we should have started to think about this
back at SD6.
On 20/12/2007, William Stein <[EMAIL PROTECTED]> wrote:
>
> On Dec 20, 2007
Hi Sage Developers,
With help from Martin Albrecht, I've been tracking the traffic to
sagemath.org here:
http://sagemath.org/traffic.html
Probably the most interesting graph is this one:
http://www.alexa.com/data/details/traffic_details/sagemath.org?site0=sagemath.org&site1=www.maplesoft.com&s
On Dec 20, 2007 9:55 AM, John Cremona <[EMAIL PROTECTED]> wrote:
>
> eclib is ok (though I was tempted to make if jeclib ;))
If you make it eclib you increase the chances of getting
outside contributions a little maybe. Also, I personally
hope that your code gets picked up and improved a lot
by
OK, I'm convinced. So the next version I submit of cremona*.spkg will
in fact be called eclib-.spkg.
I hope the release managers will cooperate!
Incidentally, cremona-20071116 can be removed from the list of
optional packages currently available as it's an older version of what
is now a non-opt
Hi there,
I am not sure if forwarding this e-mail is considered spaming the list but I
figured some of the Sage developers would like to be aware of this if they
aren't already.
Sorry, if I am wrong,
Martin
==
SCC 2008
First International
Hi all,
I'm teaching linear algebra next semester and plan to use Sage. In
trying the "obvious" way to plot a vector:
sage: v=vector([1,2])
sage: v.plot().show()
I get what looks like a step function of the coordinates. Instead, I
have to do:
sage: v=vector([1,2])
sage: arrow((0,0),v).show
Hi,
First two attempts to build sage failed.
One on Ubuntu 7.10 with a gcc (4.1.3) internal error.
Other on RHEL4 due to malformed config.h in spkg/build/ntl-5.4.1.p9/
src/src/.
Details below FYI.
Best wishes in this effort.
Here is the graph for generic polynomials:
http://sage.math.washington.edu/home/wbhart/flint-trunk/graphing/factor-gen.png
At about 1000 bits and length 6, NTL does seem to get ahead again.
Bill.
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To post to this group, send email to sage-dev
On Dec 20, 2007 10:44 AM, noo <[EMAIL PROTECTED]> wrote:
>
> Hi,
> First two attempts to build sage failed.
> One on Ubuntu 7.10 with a gcc (4.1.3) internal error.
> Other on RHEL4 due to malformed config.h in spkg/build/ntl-5.4.1.p9/
> src/src/.
> Details below FYI.
> Best wishes in this effort.
Thursday 20 December 2007 20:11:04 tarihinde William Stein şunları yazmıştı:
> On Dec 20, 2007 10:44 AM, noo <[EMAIL PROTECTED]> wrote:
> > Hi,
> > First two attempts to build sage failed.
> > One on Ubuntu 7.10 with a gcc (4.1.3) internal error.
> > Other on RHEL4 due to malformed config.h in spk
On Dec 20, 2007 10:18 AM, John Cremona <[EMAIL PROTECTED]> wrote:
>
> OK, I'm convinced. So the next version I submit of cremona*.spkg will
> in fact be called eclib-.spkg.
>
> I hope the release managers will cooperate!
They will.
> Incidentally, cremona-20071116 can be removed from the list o
On Dec 20, 2007, at 3:21 AM, John Cremona wrote:
> Topic 1: isomorphisms between Weierstrass models
>
> For Robert B as author of weierstrass_morphism.py: It's not a bug but
> I would recommend that you test for equality of j-invariants before
> doing the harder work (which you do by extracting
On Dec 19, 2007 12:24 PM, Jason Grout <[EMAIL PROTECTED]> wrote:
> I'm teaching linear algebra next semester and plan to use Sage. In
> trying the "obvious" way to plot a vector:
>
> sage: v=vector([1,2])
> sage: v.plot().show()
>
> I get what looks like a step function of the coordinates.
Yes,
I've redone both graphs since the generic NTL profiling code in FLINT
was assuming that a length n polynomial had n+1 coefficients (my
student had done this due to some confusion about the way coefficients
were counted).
The graph for polynomials with two large factors (at least):
http://sage.ma
http://copper.math.buffalo.edu/sage2.9_install.log
On Dec 20, 1:11 pm, "William Stein" <[EMAIL PROTECTED]> wrote:
> On Dec 20, 2007 10:44 AM, noo <[EMAIL PROTECTED]> wrote:
>
...
>
> This looks like something going wrong with the ntl auto-tuning code.
> I regularly build sage on RHEL 4 also, I t
Robert Bradshaw wrote:
> On Dec 19, 2007, at 4:07 AM, Joel B. Mohler wrote:
>
>> On Tuesday 18 December 2007 22:54, Jason Grout wrote:
>>> How would you propose getting an output like the second command? I
>>> guess one possibility is that:
>>>
>>> sage: latex(var('variable123')) # where 123 cou
I believe that it's fine in characteristics not 2 or 3. But once you
have checked equality of j-invariants (which is of course easy and
should be done first) and you have a candidate u, then computing r,s,t
appropriately will give a transform which is *guaranteed* to be
correct.
My question to y
On Dec 20, 2007 12:23 PM, Jason Grout <[EMAIL PROTECTED]> wrote:
>
> >> So, I would summarize Robert and Jason's discussion as agreeing
> >> that the bug
> >> is invalid?
> >
> > Yes.
>
> If this bug is marked invalid, I think we ought to have huge warning
> signs somewhere. I think the bug has a
I have never been a fan of the "arrow" view of vectors, as (to my
mind) it causes a lot of confusion when the students move on to "real"
multidimensional linear algebra. What I would expect to see if I
asked for a plot of the (real) vector (2,1) would be a big fat dot at
the appropriate position
On Dec 20, 2007 1:03 PM, John Cremona <[EMAIL PROTECTED]> wrote:
>
> I have never been a fan of the "arrow" view of vectors, as (to my
> mind) it causes a lot of confusion when the students move on to "real"
> multidimensional linear algebra. What I would expect to see if I
> asked for a plot of
For comparison, here is our favourite non-free closed source package
vs Pari and NTL for factoring with two large factors:
Magma vs Pari:
http://sage.math.washington.edu/home/wbhart/flint-trunk/graphing/magpari-factor.png
Magma vs NTL:
http://sage.math.washington.edu/home/wbhart/flint-trunk/gr
On Dec 19, 2007 11:48 AM, Carl Witty <[EMAIL PROTECTED]> wrote:
>
> On Dec 18, 10:49 pm, "[EMAIL PROTECTED]"
> <[EMAIL PROTECTED]> wrote:
> > Is this working as intended?
> >
> > The first statement should return the same as the second, and the
> > third statemnt is ok.
> >
> > sage: solve([3==3,
On Dec 20, 2007 1:13 PM, Bill Hart <[EMAIL PROTECTED]> wrote:
>
> For comparison, here is our favourite non-free closed source package
> vs Pari and NTL for factoring with two large factors:
>
> Magma vs Pari:
>
> http://sage.math.washington.edu/home/wbhart/flint-trunk/graphing/magpari-factor.png
And here we go for generic polynomials:
Magma vs Pari:
http://sage.math.washington.edu/home/wbhart/flint-trunk/graphing/magpari-factor-gen.png
Magma vs NTL:
http://sage.math.washington.edu/home/wbhart/flint-trunk/graphing/magNTL-factor-gen.png
Bill.
On 20 Dec, 20:13, Bill Hart <[EMAIL PROTEC
On Dec 20, 2007 9:39 PM, Ondrej Certik <[EMAIL PROTECTED]> wrote:
> Hi,
>
> today I was attending a Lie group lecture and the teacher Karel Houfek
> wrote the attached program in Mathematica
> to calculate some Lie groups generators etc. So my first question was
> if I can make it public
> and wit
> > (a) eternal peace and prosperity for mankind
> > (b) infinite personal power and wealth
> > (c) having the people responsible for designing Fortran run time
> > libraries and linker modes/modules beamed into space
> >
> > I would choose (c) without having to think about it.
>
> I don't know
On Dec 20, 7:14 pm, Ismail Dönmez <[EMAIL PROTECTED]> wrote:
> Thursday 20 December 2007 20:11:04 tarihinde William Stein şunları yazmıştı:
>
>
>
> > On Dec 20, 2007 10:44 AM, noo <[EMAIL PROTECTED]> wrote:
> > > Hi,
> > > First two attempts to build sage failed.
> > > One on Ubuntu 7.10 with a
I fixed the four magma graphs above so that they take into account the
time to compute and divide by the content, since Pari and NTL
certainly do that.
The result is just about the same. Magma is significantly faster for
longer polynomials, usually a factor of about 2.5, though it varies a
bit.
On Dec 20, 2007 1:39 PM, Ondrej Certik <[EMAIL PROTECTED]> wrote:
> However, the biggest problem is the 2GB space for the windows wmware
> image. (Yes, all people I know that
> use Mathematica, use it from windows). Two of my friends told me Sage
> is just too big for them and I agree.
> If Michae
On Dec 20, 2007 3:04 PM, Simon Beaumont <[EMAIL PROTECTED]> wrote:
>
> Is there some secret handshake I should use or did I ask a difficult
> question?
Give us money :-) Just kidding!
A lot of Sage developers -- like me -- are on vacation for the
holidays right now.
> On Dec 18, 10:26 pm, Simo
Does Spain in the number 2 position of
"Sagemath.org users come from these countries:"
mean that Spain downloads more copies of SAGE than
any other country but the US? Or i it just webpage
accesses?
On Dec 20, 2007 12:06 PM, William Stein <[EMAIL PROTECTED]> wrote:
>
> Hi Sage Developers,
>
> Wi
On Dec 20, 2007 3:58 PM, David Joyner <[EMAIL PROTECTED]> wrote:
>
> Does Spain in the number 2 position of
> "Sagemath.org users come from these countries:"
> mean that Spain downloads more copies of SAGE than
> any other country but the US? Or i it just webpage
> accesses?
It is webpage access
Taking a look at the actual data from the timings I did, the time
taken to factor varies much more in Magma than in NTL. Here are the
Magma timings for length 341 polynomials:
341 1 1.020e+06 1.723e+06
341 2 9.600e+05 3.090e+06
341 3 1.937e+06 3.177
Hi paul,
is this what you wanted?
http://sagetrac.org/sage_trac/report/9
david
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To post to this group, send email to sage-devel@googlegroups.com
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For more options, visit this gr
As pointed out by Michael Abshoff, it seems like an information leak
to list all the usernames on a notebook when you fail to use a valid
one to log in. Thoughts?
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To post to this group, send email to sage-devel@googlegroups.com
To unsubscribe f
David,
Did you mean to attach something to that ticket?
-- Robert M
On Dec 20, 8:07 pm, David Harvey <[EMAIL PROTECTED]> wrote:
> Hi paul,
>
> is this what you wanted?
>
> http://sagetrac.org/sage_trac/report/9
>
> david
--~--~-~--~~~---~--~~
To post to this gro
On Dec 20, 2007, at 8:47 PM, Robert Miller wrote:
> David,
>
> Did you mean to attach something to that ticket?
no... sorry I put "[with patch]" but I really meant "[solution
has been implemented]" but no-one ever writes that and I didn't want
to feel left out :-(
The point is that the
I believe it is supposed to be a custom view that shows tickets you've
reported, although it's not working for me.
On Dec 20, 2007 5:47 PM, Robert Miller <[EMAIL PROTECTED]> wrote:
>
> David,
>
> Did you mean to attach something to that ticket?
>
>
> -- Robert M
>
>
> On Dec 20, 8:07 pm, David Ha
On Dec 20, 2007, at 8:52 PM, Yi Qiang wrote:
> I believe it is supposed to be a custom view that shows tickets you've
> reported, although it's not working for me.
Are you logged in?
(I don't suppose you're seeing tickets reported by ME? (i.e. by
dmharvey?) Did I mess up?)
david
--~--~---
On Dec 21, 2:56 am, David Harvey <[EMAIL PROTECTED]> wrote:
> On Dec 20, 2007, at 8:52 PM, Yi Qiang wrote:
>
> > I believe it is supposed to be a custom view that shows tickets you've
> > reported, although it's not working for me.
>
> Are you logged in?
>
> (I don't suppose you're seeing ticket
Sage 2.9.1 alpha2 is out, available at:
http://sage.math.washington.edu/home/rlmill/sage-2.9.1.alpha2.tar
Closed tickets:
alpha2:
#1064 - Robert Miller - permutation __call__ type check
#1175 - Michael Abshoff - circular link in sage/local/lib/python2.5
#1233 - Michael Abshoff, John Cremona - mw
On Dec 20, 2007 6:24 PM, Robert Miller <[EMAIL PROTECTED]> wrote:
>
> As pointed out by Michael Abshoff, it seems like an information leak
> to list all the usernames on a notebook when you fail to use a valid
> one to log in. Thoughts?
This exact question comes up about every other week. Are y
On Dec 20, 2007 10:57 PM, William Stein <[EMAIL PROTECTED]> wrote:
> On Dec 20, 2007 6:24 PM, Robert Miller <[EMAIL PROTECTED]> wrote:
> >
> > As pointed out by Michael Abshoff, it seems like an information leak
> > to list all the usernames on a notebook when you fail to use a valid
> > one to lo
On Dec 20, 2007 7:30 PM, Robert Miller <[EMAIL PROTECTED]> wrote:
>
> Sage 2.9.1 alpha2 is out, available at:
>
> http://sage.math.washington.edu/home/rlmill/sage-2.9.1.alpha2.tar
Robert,
What's the plan? What needs to happen to go from 2.9.1.alpha2 to a release
candidate and a release?
-- Wi
That was my initial reaction, too. In a closed system, it makes sense -- for
the public notebook, it doesn't immediately seem like such a bad thing, but it
lends to a scary attack.
Robert makes an account on the public notebook.
Robert sees William's account on the failure page, so creates an
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