I had a similar problem, in a directory where I had not applied any
patches previously, so it seems like a problem with 4.3.2. I actually
randomly answered no and yes, whichever allowed me to finish the
upgrade. No problems so far, but I'd like to know what the possible
consequences are, too.
Hi Simon,
On Tue, Feb 9, 2010 at 1:20 AM, Simon King simon.k...@nuigalway.ie wrote:
Hi!
I just upgraded sage 4.3.1 to sage 4.3.2. In sage 4.3.1, there were a
couple of patches (from various tickets), but I went back to the
unpatched state, by hg_sage.update(originalversionnumber).
The
Andreas Tille wrote:
2010/2/8 Dr. David Kirkby david.kir...@onetel.net:
The ssh keys are important and has nothing to do with http, or even https.
Sure. I'm so far familiar with Linux and different protokolls.
The basic idea is that the server process should run as one user, and the
data
calcp...@aol.com wrote:
OK, I did
yum search gfortran*
which returned
gcc-gfortran
so I did
yum install gcc-fortran
which installed a number of things including libgfortran
However, when I use a shell to enter the sage directory (that I renamed
sage431) created from extracting the lzma file
2010/2/9 Dr. David Kirkby david.kir...@onetel.net:
I can sort of understand that, though I would have expected the restriction
to only apply to the $HOME/.ssh directory, which should not even be readable
by your group.
I stumbled into this trap at a previous time and it took me several hours
Do a google search on Cornacchia's algorithm. Shouldn't be too hard
to program in Sage (if it isn't there already).
Alasdair
On Feb 8, 4:07 pm, Rolandb rola...@planet.nl wrote:
Thanks William,
Actually I try to solve it for different x and n. A typical example of
(x,n) is:
%time
Dear all
I have the following sage code
sage: gamma,r,gangle,dz2,Nstep,Nrib,b=var('gamma,r,gangle,dz2,Nstep,Nrib,b')
sage: a=11.5; b=6;#this is fixed
sage: Nstep=2;Nrib=5;Diam=33;gangle=30*2*3.1415/360;gamma=40*0.33+20*0.33;
sage: #these have all to be changed when using different structure
ma...@mendelu.cz ma...@mendelu.cz writes:
On 9 ún, 11:22, Giovanni Lanzani ulisses...@gmail.com wrote:
Dear all
I have the following sage code
sage: gamma,r,gangle,dz2,Nstep,Nrib,b=var('gamma,r,gangle,dz2,Nstep,Nrib,b')
sage: a=11.5; b=6;#this is fixed
sage:
Hi all,
this creates an error :
sage: G= SymmetricGroup(5)
sage: A= GroupAlgebra(G)
sage: x, y= G.gens()
sage: A ( A(x) )
...
TypeError: Don't know how to create an element of Group algebra of
group SymmetricGroup(5) over base ring Integer Ring from (1,2,3,4,5)
although A(x) works. I have tried
Dear support,
Is there a command (perhaps I'm just blanking) for viewing a graphics
*file*, as opposed to a graphics *object*, in Sage? View and show
don't seem to support this, but maybe I'm missing something obvious.
Thanks!
- kcrisman
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obvious way:
html('img src=%s/' % 'http://sagemath.org/pix/sage_logo_new.png')
;)
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True, and I appreciate the emoticon, but how about 'natively'? An
example for why I want this is to 'show' a graphics file created by
some package in Sage which is not matplotlib or one of its friends...
On Feb 9, 1:02 pm, Harald Schilly harald.schi...@gmail.com wrote:
obvious way:
html('img
Dear support,
Suppose I want to refer to a file in a notebook cell directory from
inside that cell. How do I access that path 'easily'?
os.path.abspath('.') seems to not do what I expect, but just referring
directly to the file also raises an error. I would use
Cell.directory() or Cell.id() but
findroot expects function, not equation
try
sage: find_root(erseno(x),2,10,xtol=0.01)
does this work?
Robert
On 9 ún, 15:54, Giovanni Lanzani ulisses...@gmail.com wrote:
ma...@mendelu.cz ma...@mendelu.cz writes:
On 9 ún, 11:22, Giovanni Lanzani ulisses...@gmail.com wrote:
Dear all
I
Hello,
I'm looking at convolution products of Lebesgue integrable functions,
and to get a better visualization, I want to compute some convolutions
of indicator functions.
So, want to have a function f:R-R defined by
f(x)=1 when x \in [0,1],
f(x)=0 when x \notin [0,1],
and, I need the function
On Tue, Feb 9, 2010 at 10:17 AM, kcrisman kcris...@gmail.com wrote:
Dear support,
Suppose I want to refer to a file in a notebook cell directory from
inside that cell. How do I access that path 'easily'?
os.path.abspath('.') seems to not do what I expect, but just referring
directly to the
sage: def theta(dz):
... angle=0;
... if 0=dz2*r*cot(gangle) : angle= 2*arcsin(dz*tan(gangle)/2/r);
... if 2*r*cot(gangle)= dz 2*2*r*cot(gangle) : angle=
2*arcsin((dz-2*r*cot(gangle))/(cot(gangle)*2*r)) - pi;
... if 2*2*r*cot(gangle)= dz 4*2*r*cot(gangle) : angle=
On Feb 9, 3:02 pm, William Stein wst...@gmail.com wrote:
On Tue, Feb 9, 2010 at 10:17 AM, kcrisman kcris...@gmail.com wrote:
Dear support,
Suppose I want to refer to a file in a notebook cell directory from
inside that cell. How do I access that path 'easily'?
os.path.abspath('.')
On Tue, Feb 9, 2010 at 2:06 PM, zsharon zacherysha...@gmail.com wrote:
Hello,
I'm looking at convolution products of Lebesgue integrable functions,
and to get a better visualization, I want to compute some convolutions
of indicator functions.
So, want to have a function f:R-R defined by
Dear all,
Cells starting with %time stopped working with 4.3.2. (It works
with 4.3.1.) Is it no long supported or is it a bug? (time still
works with the command line.)
Running on Linux 32-bit, ubuntu binary.
Thanks,
Luis
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What is wrong with this?
Thanks for replying.
Well, the indicator function I want should have f(1)=1, not f(1)=1/2.
It would be nice to be able to define the indicator function
correctly, but since I'm integrating that's not really a problem.
I can integrate the indicator functions just
But convolutions are already implemented for functions in the Piecewise
class. Is there a problem you were having with that?
The only convolution I found in the reference manual is for lists
only. Can you link me to a reference that includes convolutions for
the Piecewise class?
For what
ma...@mendelu.cz ma...@mendelu.cz writes:
sage: def theta(dz):
... angle=0;
... if 0=dz2*r*cot(gangle) : angle= 2*arcsin(dz*tan(gangle)/2/r);
... if 2*r*cot(gangle)= dz 2*2*r*cot(gangle) : angle=
2*arcsin((dz-2*r*cot(gangle))/(cot(gangle)*2*r)) - pi;
... if
On Tue, Feb 9, 2010 at 6:08 PM, zsharon zacherysha...@gmail.com wrote:
But convolutions are already implemented for functions in the Piecewise
class. Is there a problem you were having with that?
The only convolution I found in the reference manual is for lists
only. Can you link me to a
Here is a very confusing printing result, where symbolics seems to
ignore the NaN until trying to numerically approximating something:
This is published in http://sagenb.org/home/pub/1555/, and comes from a
current thread on sage-support.
The NaN in a below goes away if I comment out the
On 02/09/2010 04:10 PM, Giovanni Lanzani wrote:
ma...@mendelu.czma...@mendelu.cz writes:
sage: def theta(dz):
... angle=0;
... if 0=dz2*r*cot(gangle) : angle= 2*arcsin(dz*tan(gangle)/2/r);
... if 2*r*cot(gangle)= dz 2*2*r*cot(gangle) : angle=
Alasdair, Thanks!
On 9 feb, 11:54, Alasdair amc...@gmail.com wrote:
Do a google search on Cornacchia's algorithm. Shouldn't be too hard
to program in Sage (if it isn't there already).
Alasdair
On Feb 8, 4:07 pm, Rolandb rola...@planet.nl wrote:
Thanks William,
Actually I try to solve
On Feb 9, 2010, at 12:29 PM, kcrisman wrote:
On Feb 9, 3:02 pm, William Stein wst...@gmail.com wrote:
On Tue, Feb 9, 2010 at 10:17 AM, kcrisman kcris...@gmail.com wrote:
Dear support,
Suppose I want to refer to a file in a notebook cell directory from
inside that cell. How do I access
On Tue, Feb 9, 2010 at 10:03 PM, Robert Bradshaw
rober...@math.washington.edu wrote:
On Feb 9, 2010, at 12:29 PM, kcrisman wrote:
On Feb 9, 3:02 pm, William Stein wst...@gmail.com wrote:
On Tue, Feb 9, 2010 at 10:17 AM, kcrisman kcris...@gmail.com wrote:
Dear support,
Suppose I want to
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