I have following Gap's code:
Summands := function(G)
local n, i, sgl, l, A, B, D;# ensure that the group G is finite and abelian
if not IsGroup(G) or not IsFinite(G) or not IsAbelian(G) then
Error(Usage: DirectSummands(G) - where G is a finite abelian group\n);
fi;
# obtain a list of all
I tried building conversion.i on a similar system, but was unable to
reproduce the problem. It might be really a problem with GCC, or it
might be a problem with your system, I cannot tell. Is there any chance
that I can get access to that system? Otherwise there is not much more
I
Hi
Since yesterday we are trying to work with sage on the www.sagenb.org server
and don´t performs calculations. Is this server down? Are our PC´s wrong?
Thanks
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Dear all,
let p(z)=z^n+a_1*z^{n-1}+...+a_n be a polynomial where n is a positive
integer and a_1,a_2,..., a_n are real numbers. Then the so-called *Hurwitz
determinants *of order k=1,2,...,n of p are defined as det(a_{2i-j})
, 1 \leq i,j \leq k where a_0=1 and a_k=0 for k0 and kn.
A way to get these new parameters from maxima is as follows:
soln = S[0][0][1]
soln.arguments()
to get the argument names, (Which are t and u), then
t,u = soln.arguments()
Once you've done this, you can replace u with a value as follows:
soln.subs(u == 0.5)
Which returns:
-0.145*sin(2*pi*t) -
Another good resource is:
ask.sagemath.org
Joal Heagney
On Friday, 12 October 2012 08:37:50 UTC+10, Doaa El-Sakout wrote:
I try to solve an ODE and plot the result as follows,
x,t,a=var('x,t,a')
a=0.29
x = function('x', t)
S=desolve(diff(x,t)-x*(1-x)+a*
Hello.
I've met the same problem today.
Christophe.
2012/10/16 Alberto Fernandez alb...@gmail.com
Hi
Since yesterday we are trying to work with sage on the www.sagenb.org
server and don´t performs calculations. Is this server down? Are our PC´s
wrong?
Thanks
--
You received this
On Tuesday, October 16, 2012 8:07:38 AM UTC-4, projetmbc wrote:
Hello.
I've met the same problem today.
Christophe.
2012/10/16 Alberto Fernandez alb...@gmail.com javascript:
Hi
Since yesterday we are trying to work with sage on the www.sagenb.org
server and don´t performs
On Tuesday, October 16, 2012 1:00:35 AM UTC-4, Jotace wrote:
Hi all, I'm trying this
var('x,y');
@interact
def taylor_play(f=x^2-y^2,order=slider(1,10,1,default=1),
x0=slider(-2,2,.25,default=0),y0=slider(-2,2,.25,default=0)):
p1=plot3d(f,(x,-1,1),(y,-1,1),color='blue')
Dear David,
This might be an issue of over-riding the exponentiation of an integer.
I guess it could be implemented, at a cost of slowing down the much more
common computation of exponentiation on ZZ.
O.K., I think it would also be fine to have 3*sigma instead of 3^sigma for
an element
For my part, evaluation always freezes.
2012/10/16 kcrisman kcris...@gmail.com
On Tuesday, October 16, 2012 8:07:38 AM UTC-4, projetmbc wrote:
Hello.
I've met the same problem today.
Christophe.
2012/10/16 Alberto Fernandez alb...@gmail.com
Hi
Since yesterday we are trying to
Thanks Jason,
Personally I would be in favour of the flagging system. I think it was
ince to be able to post code and it be instantaneously available to
everybody.
Vince
On 15 October 2012 21:17, kcrisman kcris...@gmail.com wrote:
luck :). Now if there are posts to moderate, they'll appear
Hi there,
I am learning Sage recently and when I was trying to display a complete graph
in the terminal window it showed the following:
sage: K=graphs.CompleteGraph(2)
sage: K.show()
---
RuntimeError
Well the obvious question is: do you have write permissions
to
/Network/Servers/smb-files.math.uwaterloo.ca/cifs.homedir/MacProfile/.sage//matplotlib-1.1.0
On Tuesday, October 16, 2012 4:25:22 PM UTC+1, fomalhauty wrote:
Hi there,
I am learning Sage recently and when I was trying to
This is strange:
sage: import mpmath
sage: exp(mpmath.mpf('-0.0712959029907420240935'))
raises TypeError: 'int' object is not callable. I can, of course, use
mpmath.exp on the number, but I would expect automatic conversion.
This works, though:
sage: exp(-0.0712959029907420240935)
On Tuesday, October 16, 2012 10:38:34 AM UTC-7, fomalhauty wrote:
Hi Volker,
All the programs were installed by the university, and I cannot install a
program myself as I am not the administrator. I asked the computer facility
help center, but they have not figured out a solution.
My
On Tuesday, October 16, 2012 10:45:08 AM UTC-7, John H Palmieri wrote:
On Tuesday, October 16, 2012 10:38:34 AM UTC-7, fomalhauty wrote:
Hi Volker,
All the programs were installed by the university, and I cannot install a
program myself as I am not the administrator. I asked the
On Tuesday, October 16, 2012 1:44:59 PM UTC-4, Dan Drake wrote:
This is strange:
sage: import mpmath
sage: exp(mpmath.mpf('-0.0712959029907420240935'))
raises TypeError: 'int' object is not callable. I can, of course, use
mpmath.exp on the number, but I would expect automatic
Hi John,
The output of mount is
/dev/disk0s2 on / (hfs, local, journaled)
devfs on /dev (devfs, local, nobrowse)
/dev/disk0s3 on /Volumes/Scratch (hfs, local, journaled)
map -hosts on /net (autofs, nosuid, automounted, nobrowse)
map auto_home on /home (autofs, automounted, nobrowse)
map -fstab
What do you get if you try the following:
sage: import tempfile
sage:
tempfile.TemporaryFile(dir='/Network/Servers/smb-files.math.uwaterloo.ca/cifs.homedir/MacProfile/.sage//matplotlib-1.1.0')
On Tuesday, October 16, 2012 7:24:19 PM UTC+1, fomalhauty wrote:
Hi John,
The output of mount is
Hi,
This is the result:
sage: import tempfilesage:
tempfile.TemporaryFile(dir='/Network/Servers/smb-files.math.uwaterloo.ca/cifs.homedir/MacProfile/.sage//matplotlib-1.1.0')
---
OSError
You can try to put
export DOT_SAGE=/Volumes/Scratch/.sage
into the sagerc
On Tuesday, October 16, 2012 9:45:07 PM UTC+1, fomalhauty wrote:
Hi,
This is the result:
sage: import tempfilesage: tempfile.TemporaryFile(dir='/Network/Servers/
On Mon, Oct 15, 2012 at 10:20:14AM -0700, Nathann Cohen wrote:
What is strange to me the SEGV is non-deterministic (different graphs
each time), which might be a sign of a deeper problem maybe not in your
code :)
Ahahaah. I do not doubt that the problem is in my code :-)
Nathann
Le lundi 8 octobre 2012 18:37:45 UTC+2, Pierre a écrit :
Consider the functional equation
(f*z + z * L(z,f)^2 + z * L(z,f+1) - L(z,f) == 0)
This defines implicitly a bivariate function L(z,f). My goal is to find
the Taylor development of L(z,0). I know from
Bernhard
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