-- Forwarded message --
From: Nick Alexander ncalexan...@gmail.com
Date: Wed, Oct 28, 2009 at 10:56 PM
Subject: Re: [sage-support] Jacobian Element over HyperElliptic Curves
To: William Stein wst...@gmail.com, Daniel Ribeiro dan...@gmail.com
(x^2 + 23*x + 15, y + 18*x + 3)
That worked perfectly! Thank guys.
On Oct 29, 1:39 am, William Stein wst...@gmail.com wrote:
On Wed, Oct 28, 2009 at 9:08 PM, Jo jorat1...@gmail.com wrote:
Hi,
I need to replace some part of a matrix with an another matrix. I
tried to use matrix.set_block, but I got an error. I tried
hmm... the question was different: attach makes variable global,
import does not. is it bug or feature?
On Oct 28, 5:52 pm, William Stein wst...@gmail.com wrote:
On Wed, Oct 28, 2009 at 5:16 AM, zeliboba zelibo...@googlemail.com wrote:
dear all
in documentation for var() it is stated
Thanks, kcrisman and Jason, that worked.
Stan
kcrisman wrote:
I think it's in home/sage/
- kcrisman
On Oct 28, 1:06 pm, Stan Schymanski schym...@gmail.com wrote:
Thanks, Jason! Where do I find it? It's not in home nor in
home/.matplotlib/.
Stan
Jason Grout wrote:
Stan
Is there some way to delete user accounts as administrator? When I log
in as admin, I see options to create an account and to suspend an
account, but not to delete one.
-- David
--~--~-~--~~~---~--~~
To post to this group, send email to
hi everyone
I want to translate some matlab code into sage
but i get some problem
here are the matlab code
if omega=-yo
uno=1;
elseif omega=-yo omega=0
uno=omega/-yo;
else uno=0;
end
i read the Loops, Functions, Control Statements, and Comparisons in
Tutorial
and
Thanks Robert--works fine.
I sort of answered my question about simultaneous connections:
apparently one account in the server pool can be used by two users--it
appears to just log in twice as that user. There must be a good reason
to have more users in the server pool, though, right? What is
Dear Ross,
On 29 Okt., 15:29, Ross r76...@gmail.com wrote:
[...]
i read the Loops, Functions, Control Statements, and Comparisons in
Tutorial
and try to use the if in sage
here is the example
for i in range(15):
if gcd(i,15) == 1:
print(i)
and try
a=5
b=3
d=100
Hi again!
On 29 Okt., 15:29, Ross r76...@gmail.com wrote:
hi everyone
I want to translate some matlab code into sage
but i get some problem
here are the matlab code
if omega=-yo
uno=1;
elseif omega=-yo omega=0
uno=omega/-yo;
else uno=0;
end
[...]
Q:
Ross wrote:
Q:
1.If i have this kind of question what can i read first?
I also find the other documentation for Python incredibly useful:
http://docs.python.org/
In particular, for language syntax, see the Language Reference
http://docs.python.org/reference/index.html. For your
David Guichard wrote:
Thanks Robert--works fine.
I sort of answered my question about simultaneous connections:
apparently one account in the server pool can be used by two users--it
appears to just log in twice as that user. There must be a good reason
to have more users in the server
I'm writing a worksheet for calc 3, and trying to figure out how to get
Sage to easily find the potential function, given a gradient. In other
words, I'm trying to duplicate the following from Mathematica:
In[7]:= DSolve[{D[f[x, y], x] == x-y, D[f[x, y], y] == -x+y^2}, f[x,
y], {x, y}] //
On Thu, Oct 29, 2009 at 9:05 AM, Jason Grout
jason-s...@creativetrax.com wrote:
David Guichard wrote:
Thanks Robert--works fine.
I sort of answered my question about simultaneous connections:
apparently one account in the server pool can be used by two users--it
appears to just log in
On Thu, Oct 29, 2009 at 9:52 AM, William Stein wst...@gmail.com wrote:
On Thu, Oct 29, 2009 at 9:05 AM, Jason Grout
jason-s...@creativetrax.com wrote:
David Guichard wrote:
Thanks Robert--works fine.
I sort of answered my question about simultaneous connections:
apparently one account in
Its exact, so you can do this:
sage: x = var(x)
sage: y = function(y,x)
sage: M = x-y
sage: N = -x+y^2
sage: desolve(diff(y,x)==-M/N,y)
1/2*x^2 + 1/3*y(x)^3 - x*y(x) == c
On Thu, Oct 29, 2009 at 12:51 PM, Jason Grout
jason-s...@creativetrax.com wrote:
I'm writing a worksheet for calc 3, and
On Thu, Oct 29, 2009 at 2:09 AM, zeliboba zelibo...@googlemail.com wrote:
hmm... the question was different: attach makes variable global,
import does not. is it bug or feature?
Feature.
When you use attach, Sage executes the code then and there in the
scope of your current file. When use
William Stein wrote:
On Thu, Oct 29, 2009 at 9:05 AM, Jason Grout
jason-s...@creativetrax.com wrote:
David Guichard wrote:
Thanks Robert--works fine.
I sort of answered my question about simultaneous connections:
apparently one account in the server pool can be used by two users--it
On Thu, Oct 29, 2009 at 10:29 AM, Jason Grout
jason-s...@creativetrax.com wrote:
hmmm...instead of world-writeable, you could also make the tmp directory
group-writeable and make the server and worksheet members of the same group.
Given that the only users in the virtual machine are the
William Stein wrote:
Speaking of startup time, I'm sad that numpy, matplotlib, etc., all
get imported by default again, hence sage -startuptime is bad
again. We need to stop having all those slow-to-import modules get
imported by default once and for all (by adding and keeping doctests
Hi,
I apologise if this question has already been answered, I was unable
to find a solution when i searched.
I am trying to use sage to compute with divisors on hyperelliptic
curves (not only of genus 2). I know how to do this in magma, but it
seems from the manual that the riemann-roch
On Thu, Oct 29, 2009 at 11:02 AM, David Holmes 26davi...@googlemail.com wrote:
Hi,
I apologise if this question has already been answered, I was unable
to find a solution when i searched.
I am trying to use sage to compute with divisors on hyperelliptic
curves (not only of genus 2). I know
Burcin Erocal wrote:
I have an idea how to hold symbolic expressions so they are not
evaluated automatically, but it will be at least a week before I can
test it and submit a patch.
Burcin,
A friend I just today were talking about Sage getting in the near future
a hold parameter, so that
David Joyner wrote:
Its exact, so you can do this:
sage: x = var(x)
sage: y = function(y,x)
sage: M = x-y
sage: N = -x+y^2
sage: desolve(diff(y,x)==-M/N,y)
1/2*x^2 + 1/3*y(x)^3 - x*y(x) == c
Ah, right; thanks for the great reply. However, if I define y as a
function of x, then
Jason Grout wrote:
David Joyner wrote:
Its exact, so you can do this:
sage: x = var(x)
sage: y = function(y,x)
sage: M = x-y
sage: N = -x+y^2
sage: desolve(diff(y,x)==-M/N,y)
1/2*x^2 + 1/3*y(x)^3 - x*y(x) == c
Ah, right; thanks for the great reply. However, if I define y as a
Hi all,
you can download Sage 4.2 Liveweight LiveCD at:
http://sage.math.washington.edu/home/luciolastra/sagelwlcd/latest/
Any feedback is appreciated!
Greetings,
Lucio
--~--~-~--~~~---~--~~
To post to this group, send email to sage-support@googlegroups.com
To
Background
I am learning to use sage and to integrate it into LaTeX, primarily to
create problems with answers already completed. I am at the same time
very much interested in creating problem statements that draw
(randomly) on databases of values. For example, a template problem
statement
On Thu, Oct 29, 2009 at 1:45 PM, Lucio Lastra luciolas...@gmail.com wrote:
Hi all,
you can download Sage 4.2 Liveweight LiveCD at:
http://sage.math.washington.edu/home/luciolastra/sagelwlcd/latest/
Any feedback is appreciated!
Greetings,
Lucio
I'm very curious -- Could you make a
On Thursday 29 October 2009 05:10:38 pm JJWMac wrote:
Back in February, Marshall Hampton posted in response to a query about
reading a csv file.
I am tempted to open a ticket in trac for some sort of read_csv
command, which might behave like the following (NOTE: this is
David wrote:
Things are looking up here. I think I'm having some firewall issues
with high port numbers. Is there any way to allow sage to open port
443 without running as root? This would be easier than trying to get
the computer center to open up a new port campus-wide.
If I run the
On Thu, Oct 29, 2009 at 10:48 AM, Jason Grout
jason-s...@creativetrax.com wrote:
William Stein wrote:
Speaking of startup time, I'm sad that numpy, matplotlib, etc., all
get imported by default again, hence sage -startuptime is bad
again. We need to stop having all those slow-to-import
William Stein wrote:
Nothing is forbidden yet, but we should try not to load whatever we
can get away with not loading in order to improve the import time.
Well, it sounds like you are forbidding matplotlib and numpy being
loaded at startup, if you're making a doctest for that.
Despite
On Thu, Oct 29, 2009 at 3:27 PM, Jason Grout
jason-s...@creativetrax.com wrote:
William Stein wrote:
Nothing is forbidden yet, but we should try not to load whatever we
can get away with not loading in order to improve the import time.
Well, it sounds like you are forbidding matplotlib and
On Oct 29, 2009, at 3:39 PM, William Stein wrote:
On Thu, Oct 29, 2009 at 3:27 PM, Jason Grout
jason-s...@creativetrax.com wrote:
William Stein wrote:
Nothing is forbidden yet, but we should try not to load whatever
we
can get away with not loading in order to improve the import time.
Thank you,
this seems to help.
David
On Oct 29, 6:54 pm, William Stein wst...@gmail.com wrote:
On Thu, Oct 29, 2009 at 11:02 AM, David Holmes 26davi...@googlemail.com
wrote:
Hi,
I apologise if this question has already been answered, I was unable
to find a solution when i searched.
Jason Grout wrote:
David Joyner wrote:
On Thu, Oct 29, 2009 at 3:33 PM, Jason Grout
jason-s...@creativetrax.com wrote:
David Joyner wrote:
Its exact, so you can do this:
sage: x = var(x)
sage: y = function(y,x)
sage: M = x-y
sage: N = -x+y^2
sage: desolve(diff(y,x)==-M/N,y)
1/2*x^2 +
On Thu, Oct 29, 2009 at 3:44 PM, Robert Bradshaw
rober...@math.washington.edu wrote:
On Oct 29, 2009, at 3:39 PM, William Stein wrote:
On Thu, Oct 29, 2009 at 3:27 PM, Jason Grout
jason-s...@creativetrax.com wrote:
William Stein wrote:
Nothing is forbidden yet, but we should try not to
Jason Grout wrote:
I'll probably just write a short function to do that, based on the
algorithm the students have seen. It's probably good for them that way
anyway.
So I did this now:
One last post on this thread...I modified this again. If you're
teaching calc 3, you might find
On Thu, Oct 29, 2009 at 6:57 PM, Jason Grout
jason-s...@creativetrax.com wrote:
Jason Grout wrote:
I'll probably just write a short function to do that, based on the
algorithm the students have seen. It's probably good for them that way
anyway.
So I did this now:
One last post on this
BTW, The Sage 4.1.1 CD is very nice!
HTH,
A. Jorge Garcia
_http://calcpage.tripod.com_ (http://calcpage.tripod.com/)
Teacher Professor
Applied Mathematics, Physics Computer Science
Baldwin Senior High School Nassau Community College
In a message dated 10/29/2009 5:32:59 P.M. Eastern
I am trying to numerically evaluate the integral of bessel functions.
I've tried constructing it various ways. The one that makes most
sense to me is:
a=var('a')
f=bessel_J(1,a)*bessel_J(0,0.1*a)*e^(-5*a)
f.numerical_integral(a,0,infinity)
I get the error: Cannot evaluate symbolic expression
svanshaar wrote:
I am trying to numerically evaluate the integral of bessel functions.
I've tried constructing it various ways. The one that makes most
sense to me is:
a=var('a')
f=bessel_J(1,a)*bessel_J(0,0.1*a)*e^(-5*a)
f.numerical_integral(a,0,infinity)
I get the error: Cannot
Hi Lucio,
On Fri, Oct 30, 2009 at 7:45 AM, Lucio Lastra luciolas...@gmail.com wrote:
Hi all,
you can download Sage 4.2 Liveweight LiveCD at:
http://sage.math.washington.edu/home/luciolastra/sagelwlcd/latest/
Thank you very much for this. I have updated the SageMath Facebook and
twitter
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