Posting on behalf of Paul Zimmermann:
> The workaround is not to create the quotient ring.
> It is better to work in polynomial rings and to use the "lift" command
> directly in Sage.
note that this is discussed in detail in Chapter 9 of the book
"Mathematical Computation with SageMath"
Thanks Dima for your help.
I successfully installed libgfortan however when compiling SageMath a new
error appears in the crash report :
ImportError: /usr/lib/i386-linux-gnu/libstdc++.so.6: version
`GLIBCXX_3.4.21' not found (required by
/home/nicolas/SageMath/local/lib/libntl.so.33)
Could
in the file named:
'/home/nicolas/.sage/ipython-5.0.0/Sage_crash_report.txt'
If you can email this file to the developers, the information in it will
help
them in understanding and correcting the problem.
You can mail it to: sage-support at sage-support@googlegroups.com
with the subject 'Sage Crash
;dot2tex") # <==
sage: view(G)
Cheers,
Nicolas
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Nicolas M. Thiéry "Isil" <nthi...@users.sf.net>
http://Nicolas.Thiery.name/
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}
sage: view(G)
**boom**
So I suspect that either that error went undetected for a long time,
or it comes from a change in tikz which makes the above code more
fragile.
Anyone a suggestion on how to tweak the above output to make it robust?
Cheers,
Nicolas
On Wed
oogle.com/group/sage-combinat-devel.
>For more options, visit [4]https://groups.google.com/d/optout.
>
> References
>
>1. mailto:sage-combinat-devel+unsubscr...@googlegroups.com
>2. mailto:sage-combinat-de...@googlegroups.com
> 3. https://groups.google.com/gro
+=E.base_extend(S[0]).plot(color=red,legend_label=str(exp(1.)))
X
the legend appears twice (tried with 6.4.1, 6.6, 6.7). Is it a bug ?
Best regards,
Nicolas Mascot
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For the record, my students got this error a couple times, on a relatively
recent Ubuntu, with Sage 6.3, probably recompiled on site. Usually, this is
due to Sage dying brutally (typically when they close the terminal where
they launched the notebook). Removing the corrupted empty users.pickle
I'm just beginning to use this setup. Maybe, there are are some hidden
limitations.
I assume you have a working installation of eclipse, PyDev and Sage.
Do this in eclipse:
1- set PyDev python interpreter to Sage
windows: preferences: PyDev: Interpreter Python: new: /sage/local/bin/
How can I ask Sage to solve the following non linear inequality
$$\sum_\limits_{i=1}^{n}a_{i}u^{sum_\limits_{j=1}^{i}y_j} c$$
$$y_j in \{0,1\}, j=1,2,\dots,n$$
$$a_i \in \mathbd{R}, i=1,2,\dots,n$$
$$n \in \mathbd{N}, u0, c 0$$
where the $y_j$ are variable and all other terms constant.
I'm new
of just get the pdf that is produced by the command line.
Has this been thought of ? Is this possible ?
Thanks to all
Nicolas
PS: the reason I would like to get this PDF is to just save it from
the notebook and send it to a friend ! I am terribly lazy but I do not
want to retype all using
Strange plot behavior : I would like to just plot a Bessel function
Am I doing anything wrong ?
(I tried to plot it through an iterator and a list plot... works ok
but unhandy with sagetex)
sage: plot(bessel_J(1,x),(x,0,10))
Sorry... I found that this was already answered and works through a
lambda function trick
On 11 mar, 16:24, Nicolas nicolas.fresseng...@gmail.com wrote:
Strange plot behavior : I would like to just plot a Bessel function
Am I doing anything wrong ?
(I tried to plot it through an iterator
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()
---
Oops, case 4 ended at the end of the message...
On 2 fév, 15:06, Nicolas nicolas.fresseng...@gmail.com 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
idea how I can do that directly in sage ?
On 2 fév, 16:15, kcrisman kcris...@gmail.com wrote:
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
I am trying to do the following thing but I am not sure whether this
is possible in sage (though I think it is in Mathematica)
Let's say I define a symbolic function
sage: f=function('f',x)
I would like to issue some command to tell sage what the derivative
of f is (for instance : g) so that
in details here for the 4.0.1 version. It is
still present in the 4.0.2 :
http://groups.google.com/group/sage-support/browse_thread/thread/d50dc3bc2bdbeab0/34798c0585fc034f?lnk=gstq=nicolas#34798c0585fc034f
Burcin provided a simple solution that works wonderfully, in the same
thread.
Should we
be x+x+1
Note that maxima isn't involved.
Sorry for the trouble
Nicolas
On 23 juin, 11:19, William Stein wst...@gmail.com wrote:
On Tue, Jun 23, 2009 at 9:40 AM, Nicolasnicolas.fresseng...@gmail.com
wrote:
I am in the writing of a program that deals with rather lengthy
lengthy and even
crash maxima. So my question was : is this possible that when I ask a
in the second line above, that the answer would be x+x+1
Sorry for the trouble
Nicolas
On 23 juin, 11:19, William Stein wst...@gmail.com wrote:
On Tue, Jun 23, 2009 at 9:40 AM, Nicolasnicolas.fresseng
to use
My solution would be to disable maxima automated simplification but I
cannot figure out if this is possible in sage or how to do it (I am
using sage.4.0.1 on Fedora 10)
Thanks
Nicolas
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?
Thanks for your help !
Nicolas
On 12 juin, 11:22, Burcin Erocal bur...@erocal.org wrote:
Hi Nicolas,
On Fri, 12 Jun 2009 02:09:08 -0700 (PDT)
Nicolas nicolas.fresseng...@gmail.com wrote:
Just one quick question about patches, I have just changed the
expression.pyx file and ran another make
Hi all,
I was trying to add symbolic functions into another one. sage does
seem to handle it. Is there any workaround ? See :
--
| Sage Version 4.0.1, Release Date: 2009-06-06 |
| Type notebook() for the
Dear Burcin
Thanks for all
It seems the patch works fine for my application, at least this is
what the first tests says !
I will get back to here if I see issues
Nicolas
On 12 juin, 11:22, Burcin Erocal bur...@erocal.org wrote:
Hi Nicolas,
On Fri, 12 Jun 2009 02:09:08 -0700 (PDT)
Nicolas
, 17:12, Burcin Erocal bur...@erocal.org wrote:
Hi Nicolas,
On Thu, 11 Jun 2009 07:07:50 -0700 (PDT)
Nicolas nicolas.fresseng...@gmail.com wrote:
Hi all,
I am trying, in sage 4.0, to write a class that inherits from the new
sage.symbolic.expression.Expression class. I have not found any
Hi all,
I am trying, in sage 4.0, to write a class that inherits from the new
sage.symbolic.expression.Expression class. I have not found any
precise signature for the __init__ method of that class so I suppose I
am doing something wrong : things seem to work, except for the
substitute stuff.
: a=test(x==1)
sage: b=test(x==2)
sage: a+b
2*x == 3
sage: a=(x==1)
sage: b=test(x==2)
sage: a+b
x == (x + 1 == 3)
strange, huh ?
I will try out your patch. Why do you say that does not solve my
problem ?
Thanks
Nicolas
On 11 juin, 17:12, Burcin Erocal bur...@erocal.org
function like Mathematica ReadList which can read
simple numbers
(the csv module almost does it !)
Anyhow, thanks to all !
Nicolas
On 4 juin, 10:31, Craig Citro craigci...@gmail.com wrote:
This is almost what I want to do. I had figured out that trick but my
problem is that the line that is input
by sage or python to
read numbers from a file without redoing the parsing stuff ?
Thanks in advance !
Nicolas
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This is almost what I want to do. I had figured out that trick but my
problem is that the line that is input is, in my case, really long and
gulps a lot of memory.
Thus, to save memory, I need to read the numbers one by one (or a
small bunch of them at a time). It seems I have to read line by
an AttributeError in 3.4.2.
Is this a bug or am I doing something wrong ?
Could I get around it by not substracting this 0 which is possibly the
source of the problem ?
Thank you all in adavance
Nicolas
sage.3.3:
sage: load dummy.sage
sage: a=test(x)
sage: a
x
sage.3.4.2:
sage: load dummy.sage
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