Ok, I have finally looked at the comparison functions and exchanging :
cmpval = seq[0].coeff.compare(other.exponent);
by
cmpval = -seq[0].coeff.compare(other.exponent);
in mul::compare_pow (mul.cpp:1265) seems to prevent the above bug from
happening.
It seems to fit better with the change made by
Hi everybody.
I'm experiencing problems with global variables in Sage. In
particular, I noticed that if I create a global variable, that one is
known everywhere and it's possible to call it everywhere. If I make an
assignment to a variable with the same name of the global one, but
inside a
Hi Walker!
On 29 Sep., 16:42, Walker ebwal...@gmail.com wrote:
... My question is: is there a way to make Sage not
creating a global variable but assigning directly the global one?
This is actually a Python question. It would of course be very
dangerous if variables defined outside a function
On Sep 29, 2010, at 07:42 , Walker wrote:
Hi everybody.
I'm experiencing problems with global variables in Sage. In
particular, I noticed that if I create a global variable, that one is
known everywhere and it's possible to call it everywhere. If I make an
assignment to a variable with the
Hi,
On Wed, 29 Sep 2010 07:00:39 -0700 (PDT)
Jean-Pierre Flori jpfl...@gmail.com wrote:
Ok, I have finally looked at the comparison functions and exchanging :
cmpval = seq[0].coeff.compare(other.exponent);
by
cmpval = -seq[0].coeff.compare(other.exponent);
in mul::compare_pow (mul.cpp:1265)
It seems it has solved my issue, many thanks all of you; I'll attach a
snipped of code next time.
I knew Sage is based on Pyton, but what I don't know is where the
first ends and the second begins, so I usually think my issue is a
Sage's one...
Anyway, thank you: it was helpful.
--
To post to
On Wed, Sep 29, 2010 at 8:18 AM, Simon King simon.k...@nuigalway.ie wrote:
Hi Walker!
On 29 Sep., 16:42, Walker ebwal...@gmail.com wrote:
... My question is: is there a way to make Sage not
creating a global variable but assigning directly the global one?
This is actually a Python question.
Hi,
Maybe it is a good thing to keep the same order as ginac internally
and your more usual ordering for printing.
However if you'd better not duplicate code, I can look at the -
x^2+x^2 part of bug #9046.
Now I may understand a big enough part of pynac code to do that.
But if you'd better use
My first guess for #9046 is that the problem is located within the
last line of collect : return x + (*this-x).expand();
In that case (*this-x).expand() should be zero but looks like:
-x^2 - 2*y^3 - y^2*z + x^2 + 2*y^3 + y^2*z
I think that whithin the call to expand(),
Hi list,
is it possible to create in a given environment in sage a new one, which
know all in the parent defined variables and values, and i i leave it
again, ijust get back to my old values?
i'd like to have this, because i have to test and compare different
calculations based on the same data
On Wed, 29 Sep 2010 09:48:25 -0700 (PDT)
Jean-Pierre Flori jpfl...@gmail.com wrote:
Maybe it is a good thing to keep the same order as ginac internally
and your more usual ordering for printing.
It is good to keep the ginac ordering internally. The user friendly
ordering is more expensive so
On 29 sep, 20:28, Burcin Erocal bur...@erocal.org wrote:
On Wed, 29 Sep 2010 09:48:25 -0700 (PDT)
Jean-Pierre Flori jpfl...@gmail.com wrote:
Maybe it is a good thing to keep the same order as ginac internally
and your more usual ordering for printing.
It is good to keep the ginac
On 09/29/2010 01:47 PM, Johannes wrote:
Hi list,
is it possible to create in a given environment in sage a new one, which
know all in the parent defined variables and values, and i i leave it
again, ijust get back to my old values?
Is this what you're looking for?
On Wed, 29 Sep 2010 12:57:54 -0700 (PDT)
Jean-Pierre Flori jpfl...@gmail.com wrote:
On 29 sep, 20:28, Burcin Erocal bur...@erocal.org wrote:
On Wed, 29 Sep 2010 09:48:25 -0700 (PDT)
Jean-Pierre Flori jpfl...@gmail.com wrote:
Maybe it is a good thing to keep the same order as ginac
nearly, i work with save_session and load_session rigthn now, but i need
something like a fast switch between some environments like this:
do some stuff
create_snapshot(sshot1)
do some more stuff
create_snapshot(sshot2)
once again stuff
switch_snapshot(sshot1) #here sshot2 is saved in the last
Hi,
I'm using Sage in a commercial environment to perform physics
simulations of optical systems. As our computing environment is XP,
I'm running Sage on WinXP in VMware Player 3.1.0 build-261024.
This morning, after suspending my machine, the VMware player froze. I
had to either power down, or
Hi again,
in the meantime I made some progress on my problem:
I use FreeMonoid to generate the set of finite words, I use FormalSums
over the integers to get the linear combinations and I wrote a simple
method to multiply two such formal sums (should this go into the class
of FormalSums?).
The
cont'd.
Oops. my apologies, I have Sage 4.4.alpha0 running on that VMware
player 3.1.0 build-261024...
Brian
On Sep 29, 1:31 pm, Brian brian.k...@fantasia.net wrote:
Hi,
I'm using Sage in a commercial environment to perform physics
simulations of optical systems. As our computing environment
On Wed, 29 Sep 2010 at 01:31PM -0700, Brian wrote:
If I start Sage from the command line, I get the following messages:
Please wait while the Sage Notebook server starts...
...
Traceback (most recent call last):
[...]
File /home/sage/sage/local/lib/python2.6/site-packages/
I'm assuming its supposed to run gnuplot...?
I have sage compiled from source code on one computer and am running
the Ubuntu version on another. Both computers are using Debian. The
command doesn't output any error messages; it just pauses and returns
to the prompt.
I've installed gnuplot
On 9/29/10 9:18 PM, Benjamin Parker wrote:
I'm assuming its supposed to run gnuplot...?
I have sage compiled from source code on one computer and am running
the Ubuntu version on another. Both computers are using Debian. The
command doesn't output any error messages; it just pauses and returns
On 9/29/10 9:29 PM, Jason Grout wrote:
Also, it would probably be better to ask on the sage-support mailing
list. I don't know how many people read this list, and I think this is
the first message I've seen on it in a long time. I didn't even know it
still existed until I just saw your message.
Thanks, Dan.
I'll give that a try. I had figured that was probably the case - but
had no way to efficiently figure out what had gotten chomped on by the
crash, as I'm very far from a Python guru.
Brian
--
To post to this group, send email to sage-support@googlegroups.com
To unsubscribe from
23 matches
Mail list logo
