Hello,
I'm preparing a live dvd with a lot of software for next year students,
and it should be based on the LTS ubuntu hardy, for a couple of reasons.
There are no binaries for hardy in the mirrors, but there have been
binaries in the past.
I tried to compile the sources yesterday. It
If you want to time running something just once, see cputime() and
walltime().
- Robert
On Jul 15, 2009, at 12:12 PM, Gustavo Rama wrote:
Thanks, I'll try it.
Cheers Gustavo
On Jul 14, 10:42 pm, Simon King simon.k...@uni-jena.de wrote:
Hi Gustavo!
On 15 Jul., 03:17, Gustavo Rama
You need include_dirs = numpy_include_dirs in your Extension(...)
declaration in module_list.py.
- Robert
On Jul 15, 2009, at 11:23 AM, Ethan Van Andel wrote:
I want to include some of my cython code as a sage module. I followed
the directions for adding the .pyx file to the sage library
Laurent wrote:
Rolandb ha scritto:
Hi,
I’m away for three weeks and I want to let my PC doing some
calculations during 20 days.
Now, I’m running the risk that after a few days the computer stops et
cetera, so that the results are lost.
Among others precautions, you should to write
On Jul 14, 2009, at 3:35 PM, William Stein wrote:
2009/7/14 Carlos Córdoba ccordob...@gmail.com:
Thanks John, I'd seen Python comprehensions before, but since I
was trying
to do all in a one-liner, I think I overlooked your elegant and
simple
solution. One comprehension at a time is
On Jul 14, 2009, at 9:05 AM, Doug wrote:
Hmm. I've also had trouble interpreting what assume() affects, and I'm
glad to hear that I'm not the only one. What Robert says here helps a
lot, but is there anything written anywhere else that goes into a bit
more detail? I'm sure there's more to
Hi all,
I've just tried to re-run an old worksheet that uses Tachyon to
raytrace an image. I believe it worked a few versions ago, but on
version 4.1 under Mac OS X (64 bit intel) I no longer get any output.
No error. No image.
Is anybody else having this?
t6 =
Works OK for me on a mac running 4.0.1, but doesn't work on sagenb
running 4.1, so I would guess this is an issue with 4.1.
I have made this trac ticket #6542:
http://trac.sagemath.org/sage_trac/ticket/6542
-Marshall Hampton
On Jul 16, 5:44 am, Paul Sargent psa...@gmail.com wrote:
Hi all,
Dear Rolandb,
I'm not sure what to do about uploading the large .sws files - I'm not
surprised it times out, based on my experience. However, what you
might want to do is one of the two following things:
1) Go back to wherever your original worksheet came from and run the
script at
On Thu, Jul 16, 2009 at 10:57 PM, kcrismankcris...@gmail.com wrote:
SNIP
2) .sws files are really just some kind of zip file. So unzipping it
will reveal the folder for the worksheet, and you can then manually
remove the snapshots (assuming you don't need them currently) and then
rezip it.
On Thu, Jul 16, 2009 at 11:23 PM, kcrismankcris...@gmail.com wrote:
SNIP
Sage worksheets are compressed using tar and bzip2. Say your worksheet
is called myworksheet.sws, then this would uncompress it:
$ tar -jxf myworksheet.sws
You then get a directory containing the worksheet data.
Thank you, that did the trick. However, while everything compiles now,
I cant use my stuff in the notebook. I've run sage -b and I'm pretty
sure my module_list.py and setup.py entries are correct. Do I have to
import or include anything? Do my entries have to be in the proper
alphabetical order?
Does this help any?
sage: R = PolynomialRing(QQ, 2, 'x1,x2', order='lp')
sage: x1,x2 = R.gens()
sage: f1 = 1/2*((x1^2 + 2*x1 - 4)*x2^2 + 2*(x1^2 + x1)*x2 + x1^2)
sage: f2 = 1/2*((x1^2 + 2*x1 + 1)*x2^2 + 2*(x1^2 + x1)*x2 - 4*x1^2)
sage: I = (f1,f2)*R; I
Ideal (1/2*x1^2*x2^2 + x1^2*x2 + 1/2*x1^2 +
Hi!
On 16 Jul., 10:51, Dr. David Kirkby david.kir...@onetel.net wrote:
...
I've also found 'nohup' useful if running a program from a remote
location, as the session does not abort if the connection dies.
nohup keeps your process alive if the connection dies, but you can
not interact with
On Fri, Jul 17, 2009 at 1:01 AM, Simon Kingsimon.k...@uni-jena.de wrote:
Hi!
On 16 Jul., 10:51, Dr. David Kirkby david.kir...@onetel.net wrote:
...
I've also found 'nohup' useful if running a program from a remote
location, as the session does not abort if the connection dies.
nohup
Suppose we want to find just integer part of square root 1000. Say
B=sqrt(1000). Then how can I use digits function i,e. B.digits() to find the
bits of B.
--~--~-~--~~~---~--~~
To post to this group, send email to sage-support@googlegroups.com
To unsubscribe from
Hi!
On 16 Jul., 16:07, Ethan Van Andel evlu...@gmail.com wrote:
Thank you, that did the trick. However, while everything compiles now,
I cant use my stuff in the notebook. I've run sage -b and I'm pretty
sure my module_list.py and setup.py entries are correct. Do I have to
import or include
I'm not quite sure what you want, but for example
sage: B = sqrt(1000)
sage: floor(B)
31
would give you the integer part (rounded down since its floor). The
round() function might be what you want instead (round(B) is 32.0).
-Marshall Hampton
On Jul 16, 10:05 am, Santanu Sarkar
Hi, I'm trying to construct an odd graph (http://en.wikipedia.org/wiki/
Odd_graph).
My first thought was to use
X = Set([1,2,3,4,5])
V=(X.subsets(2))
to get the desired subsets for the vertex set. That does get the
subsets, but converting it into a graph doesn't seem to work.
T=Graph(V) gives:
What do I import it as? if I try import module my_stuff (the folder
that I saved it in, and added to the package list) it tells me there's
no module of that name.
If I try import my_stuff.interpolators (The extension name and the
name of the .pyx file) it tells me the same thing.
Thanks,
Ethan
I confess I'm not a mathematician (I'm an economist) and it's been
almost 25 years since I took a basic course in abstract algebra. But
this is interesting. From the wikipedia page on Grobner bases, it
seems I should be able to compute solutions to the system based on the
Grobner basis, but I
You need to define a function on pair of vertices that returns True
if there should be an edge.
Something like
X = Set([1,2,3,4,5])
V=(X.subsets(2))
def s(a,b):
return a.intersection(b).cardinality()==0
T = Graph([V, s])
should work, but I am getting the following weird error in sage
The last element of that Groebner basis is a univariate polynomial in
x2, so it is relatively easy to analyze its solutions. There is one
triple root at x2=0, and then four others which are presumably the
four you are thinking of. Once you have a value for x2, you can
substitute it into the
Ok, my own mistake. The problem is that V (the set of sets) needs to
be turned into a list. This works for me now:
X = Set([1,2,3,4,5])
V = list(X.subsets(2))
def s(a,b):
return a.intersection(b).cardinality()==0
T = Graph([V, s])
Hope that helps
Cheers
Javier
On Jul 16, 5:26 pm,
On Jul 16, 12:26 pm, javier vengor...@gmail.com wrote:
You need to define a function on pair of vertices that returns True
if there should be an edge.
Something like
X = Set([1,2,3,4,5])
V=(X.subsets(2))
def s(a,b):
return a.intersection(b).cardinality()==0
T = Graph([V, s])
On Jul 16, 1:00 pm, Taxman taxman4...@gmail.com wrote:
T.is_isomorphic(P)
gives the desired result of true.
Ah sorry,
P=graphs.PetersenGraph()
being the P in question if anyone was curious.
--~--~-~--~~~---~--~~
To post to this group, send email to
The last element of that Groebner basis is a univariate polynomial in
x2, so it is relatively easy to analyze its solutions. There is one
triple root at x2=0, and then four others which are presumably the
four you are thinking of. Once you have a value for x2, you can
substitute it into
If phcpack does not report any 'failure' solutions in
classified_solution_dicts(), then it should have found all the roots.
But the groebner methods are preferable if you are interested in exact
solutions.
-Marshall
On Jul 16, 11:29 am, Doug mcke...@gmail.com wrote:
The last element of that
Hi All,
I have a problem while trying to build Sage version 4.1 from source on
Centos 4.7:
uname -a
Linux linux27.dom 2.6.9-67.0.22.ELsmp #1 SMP Wed Jul 23 17:24:12 EDT
2008 x86_64 x86_64 x86_64 GNU/Linux
cat /etc/issue
CentOS release 4.7 (Final)
Kernel \r on an \m
CPU: Intel(R) Core(TM)2 Duo
I have added a patch that fixes this, available at:
http://trac.sagemath.org/sage_trac/raw-attachment/ticket/6542/trac_6542_tachyon_tostr.patch
Since tachyon is currently broken on all systems in sage-4.1, I fixed
the immediate problem rather than taking the time to improve the
testing of
What is the official way to correctly divide 2 integer variables in
a %cython cell in a sage notebook? I know that in general you'd do
from __future__ import division but it looks like the notebook
doesn't like __future__ imports.
I have an simple workaround, so this isn't urgent, I'd just like
Sorry to keep spamming sage-support.
I have a class instance m with a method riemann_map so that
m.riemann_map(z) returns a (numpy) complex value. I want to do a
complex_plot of that function. If I try:
complex_plot(m.riemann_map,(-2,2),(-2,2)) I get this error:
...
File fast_eval.pyx, line
On Jul 16, 3:54 pm, Ethan Van Andel evlu...@gmail.com wrote:
Sorry to keep spamming sage-support.
I have a class instance m with a method riemann_map so that
m.riemann_map(z) returns a (numpy) complex value. I want to do a
complex_plot of that function. If I try:
On Thu, Jul 16, 2009 at 12:04 AM, Pablo Angulopablo.ang...@uam.es wrote:
Hello,
I'm preparing a live dvd with a lot of software for next year students,
and it should be based on the LTS ubuntu hardy, for a couple of reasons.
There are no binaries for hardy in the mirrors, but there have
On Thu, Jul 16, 2009 at 10:56 AM, RaoulVraoul.vie...@gmail.com wrote:
Hi All,
I have a problem while trying to build Sage version 4.1 from source on
Centos 4.7:
uname -a
Linux linux27.dom 2.6.9-67.0.22.ELsmp #1 SMP Wed Jul 23 17:24:12 EDT
2008 x86_64 x86_64 x86_64 GNU/Linux
cat /etc/issue
35 matches
Mail list logo