g "top" from the command line)? It could be that
you are running out of RAM and are using the swap a lot, which makes
things very slow. Of course, in that case doing *anything* inside the
virtual machine would feel quite slow.
--
Best,
Alex
--
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know all the digits from the
fraction point to the part you are interested in.
(Try it yourself: I have a number N whose hexadecimal expansion is
*3A*, where I don't know the * digits. What information does this
give you about the decimal expansion?)
--
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Alex
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ping for something fancier this won't help.
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Alex
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(a+1).multiplicative_order()
255
The docs for multiplicative_generator() say: "return a generator of
the multiplicative group", then add "Warning: This generator might
change from one version of Sage to another."
--
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Alex
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n to the value of the integral, and the second is an upper
bound on the error of this approximation. Type
sage: numerical_integral?
to find out more about this.
Best,
Alex
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sage: x in I
False
Best,
Alex
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then see if your system
administrator is willing to give it a shot.
Best,
Alex
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kage. In your case, I would try installing libpcre3-dev and see if
it helps (it does include pcre.h, for instance).
Note also that pcre is a library so there is no pcre executable to run.
Best,
Alex
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change the
settings.
Best,
Alex
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2/doc/Macaulay2-1.3.1/share/doc/Macaulay2/Macaulay2Doc/html/_coherent_spsheaves.html
and related pages, and if that does not help, ask on the Macaulay2
mailing list, see
http://groups.google.com/group/macaulay2
Best,
Alex
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Lecturer in Mathematics --
e virtual machine's Sage notebook without any problems.
So that's why I don't know what's going on at your end. The best I can
do at the moment is to suggest renaming the sage-vmware folder and
starting over from sage-vmware-4.5.2.zip (if you still have it).
Best,
Alex
-
e-4.5.2 that's up now.
Best,
Alex
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r should be given the opportunity to
> *assert* that the number is prime (or non-prime).
>
... and Ctrl-C should be allowed to stop this. I tried this out, then
pressed Ctrl-C and had to go to the office. It was still going more
than 6 hours later.
Best,
Alex
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#x27;ll have to install Sage in our
computer labs (Windows only) and I'd like to use something more recent
than 4.4.alpha0.
Thanks,
Alex
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So the
documentation is correct about this.
Best,
Alex
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e
Best,
Alex
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For more option
eone more familiar with the power series code will jump in at
> this point.
This type of thing has been noticed before (a couple of times!), see
http://trac.sagemath.org/sage_trac/ticket/3979
http://trac.sagemath.org/sage_trac/ticket/5367
I guess it might be time to fix these :)
rom this group, send email to
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> URL: http://www.sagemath.org
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re about?
Best,
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>
> /home/kinichi/Deb`s/sage-4.3.5-linux-32bit-debian_5.0-i686-Linux/
> local/
This is just a shot in the dark, but I think the problem might be that
the directory where you put sage has a ` character in it. Can you
try to rename the directory "Deb`s" to something else like
KeyError: 'x'
But if you reset again, x is back:
sage: reset
sage: globals()['x']
x
And everything is behaving exactly as the docstrings indicate.
Alex
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5 but it's been the same since 4.3.1
>
> Is there a class?
> functions?
> or is it just a random note about those words?
>
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... which you can figure out from the first two lines of the docstring
for n, by typing n? at the Sage prompt :).
Best,
Alex
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e-4.3.3 and report on their findings. Either it will work well,
which would give you a good argument to get your sysadmin to upgrade; or
it will bring somebody else's server down, in which case there's
probably some bug to fix.
Best,
Alex
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f.poles() (and maybe also f.divisor()), and have f.roots() be an alias
for f.zeroes().
And again, maybe there should be a nice way of doing this within
symbolics and somebody else can comment on this.
Best,
Alex
--
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Lecturer in Mathematics -- The
33979323890405, 1)]
Is this what you were hoping for?
Best,
Alex
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is group, send email to sage-support@googlegroups.com
> To unsubscribe from this group, send email to
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> http://groups.google.com/group/sage-support
> URL: http://www.sagemath.org
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eLivePupv02.iso
Here is the md5sum to check if the download is ok:
359f63129d4f3993bd890e4029b4d98f
I'll leave this up until a copy makes it onto the official Sage pages.
Best,
Alex
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yet
been defined; did you do this on purpose to get them to fix it?
* for "Divisibility of integers", you can also do something like
q, r = 4357.quo_rem(3754)
and get the quotient and the remainder in one go.
* in "Extended gcd", I think saying "*the* values of r
released and is ready for them to
> upgrade to.
Note that some of the major software that does this also allows you to
turn it off (I'm thinking of Firefox here).
Best,
Alex
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-- Australia -- http://www.ms.
from
www.sagemath.org
This will give you Sage 4.3.2, the latest release. Another option is to
download the sources and build it yourself.
Best,
Alex
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) or xsrange():
sage: srange(5)
[0, 1, 2, 3, 4]
sage: type(srange(5)[2])
sage: for i in srange(1, 5):
print i.factor()
1
2
3
2^2
Best,
Alex
--
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-- Australia -- http://www.ms.unimelb.edu.au/~aghitza/
.polar
poly.vertices
poly.facial_incidences poly.prism
Feel free to explore these and ask more questions.
Best,
Alex
--
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-- Australia -
ight have it as well by now.)
Best,
Alex
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sage-supp
On Sat, 30 Jan 2010 18:01:45 +1100, Alex Ghitza wrote:
>
> I will make a new binary distribution and upload it somewhere, and I'll
> send you the link when that's done.
>
It's basically done; I am getting it compressed with lzma right now, so
it should be rea
t KeyboardInterrupt:
> 985 # DO NOT CATCH KeyboardInterrupt, as it is being caught
>
>
> /media/data/sage-4.3.1-archlinux-32bit-i686-Linux/local/lib/python2.6/site-packages/sage/interfaces/gap.py
> in _eval_line(self, line, allow_use_file, wait_for_prompt)
> 683
ase.)
The ECC algorithms themselves are a more contentious matter. RSA
thinks that the original algorithms due to Koblitz-Miller are not under
patent, but that certain implementation techniques and newer algorithms
are, see
http://www.rsa.com/rsalabs/node.asp?id=2325
Best,
Alex
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his group at
> http://groups.google.com/group/sage-support
> URL: http://www.sagemath.org
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To
On Mon, 4 Jan 2010 03:03:32 -0800 (PST), Harald Schilly
wrote:
> On Jan 4, 1:16 am, Alex Ghitza wrote:
> > I finished creating binaries for 32-bit and 64-bit Archlinux...
>
> Hi, should I upload these to the mirror or do you try again with the
> fat binaries option?
>
On Mon, 4 Jan 2010 03:03:32 -0800 (PST), Harald Schilly
wrote:
> On Jan 4, 1:16 am, Alex Ghitza wrote:
> > I finished creating binaries for 32-bit and 64-bit Archlinux...
>
> Hi, should I upload these to the mirror or do you try again with the
> fat binaries option?
&g
FAT_BINARY="yes"
No, I didn't because of the warning in README.txt. I can do it in the
future, though.
Best,
Alex
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can you put these on the Linux binaries page? I will try to
keep producing these for the next releases.
Best,
Alex
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e and the space B_k(Gamma) is an
> _isomorphism_, whereas in the SAGE sourcecode and in William Stein's
> book it is only stated that it's injective.
>
> Thanks in advance,
> Kilian.
>
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On Sun, 03 Jan 2010 20:47:37 +1100, Alex Ghitza wrote:
>
> One of these days I will find out how to make binaries and I'll produce
> 32 and 64 bit binaries for archlinux.
Sorry to be replying to myself. I read through the rest of README.txt
(for the first time ever, I guess
another option. (But I still
think that the easiest and most robust way is to build from source.)
Best,
Alex
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misinterpreting what Ciaran was saying).
Best,
Alex
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ll with more complicated rules. So what I would do in your
situation is to find out what firewall software is enabled on your
machine and then google "XYZ ABC configuration", where XYZ is your Linux
distribution and ABC is the firewall software.
Best,
Alex
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t;: that's
not actually correct mathematical notation. The right one is closer
to what Sage outputs (as Jason pointed out), i.e.
x |-> x^2
So if we're going to do anything in this direction, I would much
prefer this to x -> x^2 which is just plain wrong.
Best,
Alex
--
Alex
time though).
Definitely let us know if you're having any trouble installing a
recent version, or if there are other features that you would like to
have regarding elliptic curves.
Best,
Alex
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-- Australia -- http://www.m
On Fri, Nov 27, 2009 at 03:53:39PM -0800, William Stein wrote:
>
> I've never heard of this. The above could be caused by some file
> being corrupted.
>
> Delete $HOME/.sage/temp to get rid of this problem.
>
Thanks, that did it.
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have not run into this in previous versions. Has anyone else seen
this?
Best,
Alex
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I was thinking of fixing this by mimicking what you did in the case of
the reals, but I couldn't easily find where and how that is done. I
should probably keep looking -- but you probably know exactly where it
is, and so I am lazy and asking you.
Best,
Alex
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On Tue, Nov 17, 2009 at 01:52:58PM -0800, Simon King wrote:
> Hi Alex!
>
> On 17 Nov., 22:12, Alex Ghitza wrote:
> ...
> > I'm not sure I understand this paragraph. Mathematically, 0*M is
> > always the zero matrix and never the number 0. So it seems to me t
rs):
sage: V = VectorSpace(QQ, 5)
sage: F = V.subspace([(0,1,2,3,4), (1,2,3,4,6), (0,1,0,1,0)])
sage: G = V.subspace([(1, 1, 0, 0, 0), (0, 1, 1, 2, 2), (5, 4, 3, 2, 1)])
sage: I = F.intersection(G)
sage: I.basis()
[
(1, 0, -1, -2, -2),
(0, 1, 1, 2, 2)
]
sage: S = F + G
sage: S.basis()
[
(1, 0,
On Tue, Nov 10, 2009 at 01:27:18PM -0800, Mikie wrote:
>
> Simon,
>
> No, I haven't any upgrade.
> Could you tell explicitly what to do for the upgrade?
>
Just type
sage -upgrade
and see what happens.
Alex
--
Alex Ghitza -- Lecturer in Mathematics -- The
y to go. It also has the advantage that you can do it at the very
beginning, instead of having to wait until R fails.)
2. The other option (more of a hackish workaround) is to do
cp /usr/lib/libgcc_s.so /opt/sage-4.2/local/lib/gcc-lib/i686-pc-linux-gnu/4.0.3/
and try "make" ag
alled Sage, and type
make test
This runs most of the Sage test suite (it could take a while,
depending on your machine) and reports on failures. There is also a
longer version, unsurprisingly called
make testlong
which runs the whole test suite.
Best,
Alex
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error, I type
cp /usr/lib/libreadline.so /opt/sage-4.2/local/lib/
and then make again.
Best,
Alex
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--~--~-~--~~~---~--~~
To post
ce not being
> > implemented. I do not know any workarounds to this.
>
> I didn't see this at all either.
>
[...]
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--~--~-~--~--
s
> 96 R = self.base_ring()
> 97 y = self._printing_ring.gen()
>
> AttributeError: 'test' object has no attribute
> '_hyperelliptic_polynomials'
>
>
> I am not sure what
On Thu, Oct 22, 2009 at 01:11:18PM -0400, Mariah Lenox wrote:
>
> Would a sage developer please check in this (very minor)
> patch to the symbolic/expression.pyx documentation.
>
[...]
Up at
http://trac.sagemath.org/sage_trac/ticket/7265
--
Alex Ghitza -- Lecturer in Mathem
d for you to recompile Sage.
Best,
Alex
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--~--~-~--~~~---~--~~
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To unsubsc
"an unusual
circumstance" versus "a usual circumstance".
I hope this makes sense. Also, disclaimer: IANANES (I am not a native
English speaker :)
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--
Try
sage: kronecker_symbol(a, N)
with a and N your favourite integers.
Best,
Alex
On Sun, Jul 19, 2009 at 4:28 PM, Santanu
Sarkar wrote:
> How Jacobi Symbol (a/N) can be calculate in Sage 4.1
>
> >
>
--
Alex Ghitza -- Lecturer in Mathematics -- The University of Melbour
It's now N.nbits()
Best,
Alex
On Sat, Jul 18, 2009 at 10:53 PM, Santanu
Sarkar wrote:
> How can find the number of bits of an integer in Sage 4.1 ?
> Say, N=1234.
> In Sage 3.1.1 it was N.bits() .
> >
>
--
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ix,
>> > but I would run 4.0.a0 before running 3.4.2 anyway ;)
>> > Just use 4.0.a0 or later ;)
--
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-- Australia -- http://www.ms.unimelb.edu.au/~aghitza/
--~--~-~--~~~---~--~~
27;s just operator precedence:
>>
>> sage: -(2.0^(1/3))
>> -1.25992104989487
>> sage: (-2.0)^(1/3)
>> 0.629960524947437 + 1.09112363597172*I
>>
>
> Clear. Thanks. Why this particular root?
>
I believe that it is the real 3rd root of 2 times the "natura
same phenomenon that Michael is describing when
running loops where elliptic curves (or even just plane curves) are
created. The patch seems to have no effect on those loops.
Alex
--
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t;uniqueness of parents", and what we just saw here is a good reason
why we might *not* want it. How can we reconcile this? Can we make
it easy to turn off "uniqueness of parents" in some situations?
Best,
Alex
--
Alex Ghitza -- Lecturer in Mathematics -- The University of M
> Is there any easy way of coercing Sage to act like this?
You would probably need to tweak the preparser and play with ipython,
but I don't know enough about this to actually do it...
Best,
Alex
--
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versions: 5.0_lenny and 4.0_etch. Is
> one or the other of these a better choice for installing on a Gentoo
> Linux box?
> -John
>
> --
> John P. Burkett
> Department of Economics
> University of Rhode Island
> Kingston, RI 02881-0808
> USA
>
> phone (401)
4
(check out the ones named SD14__Visualisation*, they have a bunch of
examples of plots of varieties)
Best,
Alex
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-- Australia -- http://www.ms.unimelb.edu.au/~aghitza/
--~--~-~--~~~---~--
thon2.5/site-packages/sage/interfaces/gap.py",
> > line 1248, in gfq_gap_to_sage
> >return F(K(g**e))
> > File "finite_field_givaro.pyx", line 530, in
> > sage.rings.finite_field_givaro.FiniteField_givaro.__call__
> > (sage/rings/finite_field_gi
follows:
F.substitute(a=0, b=3) # and Sage will answer: 3
If you do F.substitute? you will get the documentation for the substitution
method, with more examples of usage.
Best,
Alex
--
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-- Forwarded message --
From: Nick Alexander
Date: Thu, Mar 12, 2009 at 10:08 AM
Subject: Re: two questions about sage-mode
To: Alex Ghitza
On 11-Mar-09, at 3:48 PM, Alex Ghitza wrote:
Hi folks,
>
> Quite a few people at Sage Days 14 are fans of emacs and therefore
ld come in handy when making changes to the sage library
Best,
Alex
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--~--~-~--~~~---~--~~
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X_0(N)$.
> (I'm trying to remove all mention of Magma from a paper
> I wrote long ago http://arxiv.org/abs/math.NT/0403548
> and this question arose from that.)
>
> Thanks,
> David JOyner
>
> >
>
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Alex Ghitza -- Lecturer in Mathemat
its own separate
> >> sage run? Since notebook() doesn't return, I don't know how to do it
> >> in one session.
> >>
> >>>
> >>
> >
> >
> >
> > --
> > "The main things which seem to me important on thei
ave already
made: you start with -5 which is an exact number, but as soon as you do
CC(-5) you get a complex number with 53 bits of precision and no memory of
where it's coming from. So doing CC(-5).n(prec=100) will just fill the
missing 47 bits with randomness, just as if you had done
CC(-
.|
--
sage: proofStrain,f_y,gamma_ms = 0.002, 250, 1.1499
sage: abc = 3150/(2000*(proofStrain + 5.00e-6*f_y/gamma_ms) + 7)
sage: abc
239.108910891089
sage: abc.n(digits=5)
239.11
Best,
Alex
--
Alex
real.
>
>
In case you're wondering how to achieve the result you're after:
sage: RR(2.2*exp(3))
44.1881812310129
Best,
Alex
--
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--~--~-~--~
e results but i havent been able
> to prove it.
> If anybody can help me to find a way to solve this problem showing the
> lambdas I get when doing it on paper in sage, I'd be thankfull
>
> Thanks in advance,
> Daniel
> >
>
--
Alex Ghitza -- Lecturer in Mathematics
able? I tried your
> syntax but it does not work.
> However, [2*x for x in [3,4]] does work.
>
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Australia -- http://www.ms.unimelb.edu.au/~aghitza/
--~--~-~--~~~---~--~~
To post to t
of numbers by a constant?
>
> e.g. I want 2*[3,4] = [6,8]
>
> without calling pari/gp.
>
> Thanks in advance
> >
>
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Australia -- http://www.ms.unimelb.edu.au/~aghitza/
--~--~-~--~~-
U (0avgtext+0avgdata 0maxresident)k
> 200inputs+4736outputs (0major+7366minor)pagefaults 0swaps
>
> Martin
>
>
> >
>
--
Alex Ghitza -- Lecturer in Mathematics -- The University of Melbourne --
Australia -- http://www.ms.unimelb.edu.au/~aghitza/
--~--~-~--~~-
The correct syntax is sin(x), not sin x. And so the following works:
sage: plot(sin(x), (-1,1))
Best,
Alex
--
Alex Ghitza -- Lecturer in Mathematics -- The University of Melbourne --
Australia -- http://www.ms.unimelb.edu.au/~aghitza/
--~--~-~--~~~---~--~~
To
Hi,
The links under AMS January 2008 (with banner and flier files) are broken. Does
anyone know where to find these files?
Thanks,
Alex
--
Alexandru Ghitza
Lecturer, Pure Mathematics
Department of Mathematics and Statistics
The University of Melbourne
Parkville, VIC, 3010
Australia
--~--~
Hi,
I am fairly certain the following two things are bugs, but I want to
double-check that I'm not doing something stupid before submitting a ticket:
sage: R. = QQ[]
sage: P1 = ProjectiveSpace(R)
sage: H = P1.Hom(P1)
sage: f = H([x-y, x*y])
sage: f
Scheme endomorphism of Projective Space of dim
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William Stein wrote:
| On Sat, Apr 19, 2008 at 9:38 AM, Alex Ghitza <[EMAIL PROTECTED]> wrote:
| The "mysterious reason" is that we enhanced the security of
| the notebook for local users. Namely, you now *must* do
|
| sage -c &
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Hi,
I don't think you need to do anything special. Just install sage the
normal way (either from binaries or building from source), then run
sage -notebook
This can be run either as root or as a normal user (probably
preferable).
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William Stein wrote:
| On Wed, Apr 16, 2008 at 6:35 AM, Alex Ghitza <[EMAIL PROTECTED]> wrote:
| Hi folks,
|
| I run a notebook server for one of the classes I'm teaching. It works
| fine with sage-2.10.2, but I have trouble with
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Hi folks,
I run a notebook server for one of the classes I'm teaching. It works
fine with sage-2.10.2, but I have trouble with more recent versions. It
might have something to do with the new version of twistd, but I really
don't know anything abou
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Hi Andy,
I had the exact same question a few days ago. There are
many issues involved here, but the short answer to your
question (provided by Carl Witty) is:
you can plot x^(1/3) with
show(plot(lambda x : RR(x).nth_root(3), -10, 10), figsize=[5,5
:
| "Solves a 1st or 2nd order linear ODE via maxima. "
|
| On Feb 18, 2008 10:03 PM, Alex Ghitza <[EMAIL PROTECTED]> wrote:
| Hi,
|
| I'm trying the following:
|
| ~sage: t = var('t')
| ~sage: x = function('x', t)
| ~
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Hi,
I'm trying the following:
~sage: t = var('t')
~sage: x = function('x', t)
~sage: de = lambda y: diff(y,t) - y^4
~sage: desolve(de(x(t)),[x,t])
I get: 't+%c'
But x(t)=t is clearly not a solution o
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D. M. Monarres wrote:
| Hello all,
|
| First of all, I would like to thank all of the sage developers. Sage
| has been a very useful tool for both graduate work and teaching.
|
| I have a question about plotting. The plot function allows for a list
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bill.p wrote:
| Sorry, Carl, it's
| http://www.billp.org/Fermat_1729.sws
|
| Here's my transcript of the notebook for David. Firefox wouldn't let
| me copy/paste from the notebook!
| Ended up pressing the 'print' link, then doing File/save-as on
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Hi,
I've been playing with spaces of modular symbols over finite fields, and
I ran into two issues that seem to be separate (they're tickets #1231
and #1232 now):
1. doing
ModularSymbols(1,8,0,GF(3)).simple_factors()
gives
- -
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Success on Intel Core 2 running Gentoo:
Machine: Linux latitude 2.6.21-gentoo-r4 #1 SMP Wed Jul 18 15:19:23 EDT
2007 i686 Genuine Intel(R) CPU T2400 @ 1.83GHz GenuineIntel GNU/Linux
real66m23.913s
user64m31.750s
sys 4m40.942s
To install
; type 'show?' to see other options.
>
> Alex
>
> On 9/20/07, *Alex Ghitza* <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>>
> wrote:
>
>
> Hi,
>
> I need to plot some simple functions in one variable (e.g. x^3, cos(x),
> etc.). The graphs come o
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