On Tue, 02 Feb 2010 at 09:55PM -0800, Georges wrote:
> I'm new to Sage/Sun VirtualBox (Windows Vista x64). I can open "sage:
> prompt", "Sage Notebook" (Firefox icon), no problem. I'm trying to
> work on some programming (Sage Tutorials Release 4.3.1, Chapter 5).
> The question I have is how do I
Something seems to be broken in extensions of p-adics. Here are two
examples:
sage: R. = Zq(9)
sage: R.residue_system()
TypeError: cannot convert x to a p-adic element
and
sage: el=R.random_element()
sage: el.slice(el.valuation(),el.valuation()+1)
TypeError:
'sage.rings.padics.padic_ZZ_pX_CA_e
Hi All,
I'm new to Sage/Sun VirtualBox (Windows Vista x64). I can open "sage:
prompt", "Sage Notebook" (Firefox icon), no problem. I'm trying to
work on some programming (Sage Tutorials Release 4.3.1, Chapter 5).
The question I have is how do I create/open/edit a sage file. Is
there a simple te
Hi,
On Wed, Feb 3, 2010 at 1:50 PM, wrote:
> All I know is this is my feed:
>
> http://calcpage.tripod.com/shadowfax/rss.xml
>
> does that help?
That actually feeds every update from your blog to an aggregator.
People who subscribe to Planet Sage often do so for Sage specific
posts. To aggregat
Hi,
On Wed, Feb 3, 2010 at 1:36 PM, wrote:
> Are openMPI and MPI4PY included in the SAGE distribution?
No. Both Open MPI and mpi4py are not part of the Sage standard
repository. For what's available in the repository of standard
packages, see the page for standard spkg's [1]. However, if you wa
Hi,
After I create the residue field of a p-adic ring, how do I cast
elements of the field back into the ring? Any lift is fine. The
obvious thing doesn't work:
sage: R. = Zq(9)
sage: F = R.residue_class_field()
sage: F
Finite Field in z0 of size 3^2
sage: a = F.gen()
sage: R(a)
-
All I know is this is my feed:
http://calcpage.tripod.com/shadowfax/rss.xml
does that help?
HTH,
A. Jorge Garcia
http://calcpage.tripod.com
Teacher & Professor
Applied Mathematics, Physics & Computer Science
Baldwin Senior High School & Nassau Community College
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Are openMPI and MPI4PY included in the SAGE distribution?
I see MPI4PY mentioned here:
http://www.sagemath.org/doc/numerical_sage/mpi4py.html
Also, this blog
http://www.sagemath.org/doc/numerical_sage/mpi4py.html
says that openMPI is included when you install SAGE.
I don't see how that's possib
On Feb 2, 3:23 pm, Mike Hansen wrote:
> Hello,
>
> On Tue, Feb 2, 2010 at 12:08 PM, VictorMiller wrote:
> > I can't find a method for a vector space (or perhaps a subspace of a
> > vector space) for "orthogonal subspace". Since vector space seem to
> > be equipped with an inner product this se
On Feb 2, 3:10 pm, "ma...@mendelu.cz" wrote:
> On 2 ún, 17:38, Nicolas wrote:
>
>
>
> > Thanks for your answer !
>
> > Following your idea, ny playing around in maxima, I found that :
>
> > trigreduce(sin((a+b)/c))
> > > sin(b/c+a/c)
>
> > Therefore
> > trigexpand(trigreduce(sin((a+b)/c)))
Dave, thank you for reply!
Building flex from source solved this issue. So it is definitely the
problem with Fedora repos.
And sorry for your time.
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I personally don't see how off the top of my head, but if
you figure out a way to do it, please post it!
Maybe reading to source code of Piecewise and/or contour_plot
might help?
On Tue, Feb 2, 2010 at 1:00 PM, Eugene Goldberg wrote:
> Hi!
>
> I've got a few functions like this:
>
> f1(x,y)=sin
On Feb 2, 10:01 pm, Alex Ghitza wrote:
> (Other mirrors might have it as well by now.)
I'm afraid, no. They have shut down the master server more than a day
ago, I don't know what has happened ... :(
H
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Hi Ross,
On Wed, Feb 3, 2010 at 8:50 AM, Minh Nguyen wrote:
> The thrust of this post is how do I use sage -tp properly...
See the Developers' Guide, especially the sections "Parallel testing
many modules" [1] and "Parallel testing the whole Sage library" [2].
> Id like to do the equivalent
Hi folks,
The following forwarded message is from someone who wasn't able to
directly send to this list.
--
Regards
Minh Van Nguyen
-- Forwarded message --
From: ross k
Date: Wed, Feb 3, 2010 at 8:40 AM
Subject: Fwd: using sage -tp vs testall
To: Minh Nguyen
Minh
Sorry to
On Tue, 2 Feb 2010 09:16:52 -0800 (PST), Drini wrote:
>
> Is it still up? If not, a fix is available somewhere? I just ran into
> this problem (arch 32bit also) today
>
Yes, try
http://modular.math.jmu.edu/linux/32bit/sage-4.3.1-fat-archlinux-i686-Linux.tar.lzma
(Other mirrors might have it a
Hello,
On Tue, Feb 2, 2010 at 12:08 PM, VictorMiller wrote:
> I can't find a method for a vector space (or perhaps a subspace of a
> vector space) for "orthogonal subspace". Since vector space seem to
> be equipped with an inner product this seems like a natural function
> to have. Am I missing
On 2 ún, 17:38, Nicolas wrote:
> Thanks for your answer !
>
> Following your idea, ny playing around in maxima, I found that :
>
> trigreduce(sin((a+b)/c))
> > sin(b/c+a/c)
>
> Therefore
> trigexpand(trigreduce(sin((a+b)/c)))
> > cos(a/c)*sin(b/c)+sin(a/c)*cos(b/c)
> Which is what is wan
I can't find a method for a vector space (or perhaps a subspace of a
vector space) for "orthogonal subspace". Since vector space seem to
be equipped with an inner product this seems like a natural function
to have. Am I missing something? If not, I vote that it should be
added.
Victor
--
To p
On 2 ún, 18:11, andrejv wrote:
>
> I don't know how to change sin((x+y)/a) to sin(x/a + y/a) in Sage,
> maybe someone else can help you with that.
This is expand from Maxima
sage: sin((a+b)/c)._maxima_().expand().sage()
sin(a/c + b/c)
Robert
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On Tue, Feb 2, 2010 at 7:50 AM, Minh Nguyen wrote:
> Hi Robert,
>> Note, however, that code passed to prun is not preparsed.
>
> Good point. I think this is tracked at ticket #2054
>
> http://trac.sagemath.org/sage_trac/ticket/2054
I've put a patch up which fixes this by doing something similar t
Hi Georg,
On Wed, Feb 3, 2010 at 4:10 AM, ggrafendorfer
wrote:
> ../src/graph/plotfltk.c:193: error: 'class Plotter' has no member
> named 'show'
> ../src/graph/plotfltk.c:194: error: 'Fl' has not been declared
> make[3]: *** [plotfltk.o] Error 1
> make[3]: Leaving directory `/scratch/bin/sage
Hi!
I've got a few functions like this:
f1(x,y)=sin(x)+cos(y)
f2(x,y)=sin(y)+cos(x)
and I need to plot counter graphics like:
contour_plot(lambda x,y:f1(x,y),(x,0,3),(y,0,14))+contour_plot(lambda
x,y:f2(x,y),(x,3,6),(y,0,14))
can i do this easily using piecewise function?
g=Piecewise([ [(0,3)
On Jan 30, 7:06 am, Alex Ghitza wrote:
> 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
On Feb 2, 3:06 pm, Nicolas wrote:
> Here is some to-my-opinion strange behaviour of trig_expand :
>
> #Declare real variables
> var('a b c')
> assume([a,'real'],[b,'real'],[c,'real'])
> assumptions()
> ---> [a is real, b is real, c is real]
>
> #Case 1
> sin(a+b).trig_expand()
> ---> sin(a)*cos(b)
Hi,
I tried to built sage-4.3.1 on fedora 11 (amd phenom II X4),
when compiling pari a problem arised.
here are the relevant lines of install.log:
==
Shall we try to build pari 2.3.3 (released) now (y/n)? [n]
Ok. Type "make
Thanks for your answer !
Following your idea, ny playing around in maxima, I found that :
trigreduce(sin((a+b)/c))
> sin(b/c+a/c)
Therefore
trigexpand(trigreduce(sin((a+b)/c)))
> cos(a/c)*sin(b/c)+sin(a/c)*cos(b/c)
Which is what is wanted
but I did not find any trigreduce in sage
Any i
Hi Robert,
On Tue, Feb 2, 2010 at 10:20 PM, Robert Bradshaw
wrote:
> Note, however, that code passed to prun is not preparsed.
Good point. I think this is tracked at ticket #2054
http://trac.sagemath.org/sage_trac/ticket/2054
--
Regards
Minh Van Nguyen
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Here is the result of ps, which I forgot about:
PID TT STAT TIME COMMAND
22503 p1 S 0:00.04 -bash
23320 p1- S 9:50.62 python /Users/.../sage-4.1.2.rc1.alpha3-copy/
local/bin/sage-cleaner
5846 pb Ss+0:00.03 bash /Users/.../sage-4.1.2.rc2/sage -python -
u
5853 pb S+
Dear support,
Has anyone ever had the following problem on Mac? I get this on both
PPC and Intel.
One has some Sage installations. One builds/downloads new ones. One
puts the old ones in the Trash, and then tries to Empty Trash. Then
one gets a whole bunch of messages like:
"The operation ca
On 02/02/2010 03:57 AM, Peter K.H. Gragert wrote:
Hi,
the second solution is indeed very nice.
I tested with
A = Matrix(QQ, 2,3, [1,2,3,4,5,6]);A
giving:
[1 2 3]
[4 5 6]
res=[A[rows,cols] for cols in Combinations(A.ncols(),2) for rows in
Combinations(A.nrows(),2)];res
[[1 2]
[4 5], [1 3]
[4 6
On Feb 1, 11:53 pm, Simon wrote:
> Thank you both for your replies.
> It's interesting that in Andrej's examples, the e^x and exp(x) form do
> not yield the same result,
> since in maxima (which I know next to nothing about) we have
> (%i1) declare(m, integer);
> (%o1)
Dear Nicolas,
If you do
sage: a = sin((a+b)/c)
sage: a.trig_expand??
you will see the source code, which simply uses one of Maxima's
expansion routines, whose behavior should be documented on the Maxima
Sourceforge site. My suspicion is that Maxima declines to expand this
because c might be zer
Oops, case 4 ended at the end of the message...
On 2 fév, 15:06, Nicolas wrote:
> Here is some to-my-opinion strange behaviour of trig_expand :
>
> #Declare real variables
> var('a b c')
> assume([a,'real'],[b,'real'],[c,'real'])
> assumptions()
> ---> [a is real, b is real, c is real]
>
> #Case
Here is some to-my-opinion strange behaviour of trig_expand :
#Declare real variables
var('a b c')
assume([a,'real'],[b,'real'],[c,'real'])
assumptions()
---> [a is real, b is real, c is real]
#Case 1
sin(a+b).trig_expand()
---> sin(a)*cos(b) + sin(b)*cos(a)
#Case 2
sin((a+b)/2).trig_expand()
--
Douglas Mencken wrote:
I have a problem with building SAGE 4.3.1 for linux-powerpc32:
checking lex output file root... configure: error: cannot find output
from flex; giving up
My distro is Fedora 12 Constantine, I have flex 2.5.35 installed by
package management system (Package flex-2.5.35-7.fc
On Feb 1, 4:59 am, Cal Armstrong wrote:
I would rather see it ported to a device that students already have,
their
smartphones, instead of saddling them with the purchase of another
device.
I agree. Though installing Sage on a phone is an interesting exercise,
in practice making sure the
On Feb 1, 2010, at 6:14 PM, Minh Nguyen wrote:
Hi Stefan,
On Tue, Feb 2, 2010 at 1:07 PM, Stefan
wrote:
Can anyone point me in the right direction for profiling a Python
function in Sage?
Here's an example on using prun from within Sage:
sage: %prun next_prime(10)
4 function
Hi,
the second solution is indeed very nice.
I tested with
A = Matrix(QQ, 2,3, [1,2,3,4,5,6]);A
giving:
[1 2 3]
[4 5 6]
res=[A[rows,cols] for cols in Combinations(A.ncols(),2) for rows in
Combinations(A.nrows(),2)];res
[[1 2]
[4 5], [1 3]
[4 6], [2 3]
[5 6]]
this is more or less my question thi
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