The best experience that I had in Windows with SAGE was when SAGE was
available from cygwin. The second best was in Virtual PC (free from
Microsoft) with first Ubuntu installed in it, and then SAGE built from
source there.
Currently I use SAGE (built from source) in Ubuntu 8.04 installed in th
Hi,
I hung out with Dorian and Alex (the Knoboo guys) tonight, and they
pointed out that VirtualBox
has made a lot of progress since being bought by Sun a year ago. It
is thus time to at least
consider replacing using VMware for the current Sage windows
deployment with Virtualbox.
Does anybody h
Hi David,
> That's the bug; if anyone knows of a workaround for now I'd like to
> hear it. My code builds up complicated expressions involving
> rationals and symbols, and no matter how I reorder things, one of them
> fails in this manner. I know I can use 'var' instead of 'Symbol', but
> I nee
The following input:
from sympy import Symbol
QQ(1)+Symbol('x')*QQ(2)
produces an error:
TypeError Traceback (most recent call
last)
/Applications/sage/ in ()
/Applications/sage/element.pyx in
sage.structure.element.ModuleElement.__add__ (sage/structure/element
On Aug 23, 11:04 am, "Mike Hansen" <[EMAIL PROTECTED]> wrote:
> Hello all,
Hi Mike,
> While we continue to add tests to the notebook code, there are some
> things that we just can't test directly in Python such as browser
> interactions / Javascript / etc. Luckily, there is a nice software
>
Hi Harald,
On Tue, Aug 26, 2008 at 6:07 PM, Harald Schilly
<[EMAIL PROTECTED]> wrote:
>
> Hi, I want to propose a process to increase the quality of the Sage
> documentation. This is the by far most annoying thing about Sage
> according to the last survey. I think the userbase is already big and
On Aug 26, 8:56 pm, "William Stein" <[EMAIL PROTECTED]> wrote:
> Are you saying: "I, Harald, am willing to organize this,...
Ok, then I will start this on a wiki page and yes, organizing is
something i'm better than writing text.
H
--~--~-~--~~~---~--~~
To post to
Howdy,
On Tue, Aug 26, 2008 at 11:07 AM, Harald Schilly
<[EMAIL PROTECTED]> wrote:
>
> Hi, I want to propose a process to increase the quality of the Sage
> documentation. This is the by far most annoying thing about Sage
> according to the last survey. I think the userbase is already big and
> w
gmane.comp.mathematics.sage.devel seems to be back in business!
Jaap
On Aug 18, 12:35 pm, Harald Schilly <[EMAIL PROTECTED]> wrote:
> On Aug 18, 11:44 am, Harald Schilly <[EMAIL PROTECTED]> wrote:
>
> > The member list indicates a problem with the gmane address, it's
> > "bouncing". This means
>>> Incidentally, I invested a significant amount of time systematically
>>> learning
>>> C++ when I was an undergrad computer science major, so you're
>>> right that this likely affects my perspective.
>>
>> This is indeed interesting. If you say that ginac is nicely written,
>> then I really sh
On Tue, Aug 26, 2008 at 11:27 AM, Nils Bruin <[EMAIL PROTECTED]> wrote:
>
> I confirm this bug. This used to work. I assumed you didn't have a
> trac account so I filed a bug report for you. This is now
>
> http://trac.sagemath.org/sage_trac/ticket/3960
>
> I'm sure the developers appreciate your
On Tue, Aug 26, 2008 at 11:07 AM, Harald Schilly
<[EMAIL PROTECTED]> wrote:
>
> Hi, I want to propose a process to increase the quality of the Sage
> documentation. This is the by far most annoying thing about Sage
> according to the last survey. I think the userbase is already big and
> willing e
Hi
On Tue, Aug 26, 2008 at 8:07 PM, Harald Schilly
<[EMAIL PROTECTED]> wrote:
>
> Hi, I want to propose a process to increase the quality of the Sage
> documentation. This is the by far most annoying thing about Sage
> according to the last survey. I think the userbase is already big and
> willin
On Tue, Aug 26, 2008 at 11:21 AM, Ondrej Certik <[EMAIL PROTECTED]> wrote:
>
>>> I didn't find NTL that easy to use. Perhaps it depends on the code
>>> style of the reader and writer. I had a look at singular 2 years ago,
>>> and I did not find it easy at all (and it was not available as a
>>> lib
On Tue, Aug 26, 2008 at 8:27 PM, Nils Bruin <[EMAIL PROTECTED]> wrote:
>
> I confirm this bug. This used to work. I assumed you didn't have a
> trac account so I filed a bug report for you. This is now
>
> http://trac.sagemath.org/sage_trac/ticket/3960
>
> I'm sure the developers appreciate your r
I confirm this bug. This used to work. I assumed you didn't have a
trac account so I filed a bug report for you. This is now
http://trac.sagemath.org/sage_trac/ticket/3960
I'm sure the developers appreciate your report (I do, but I'm not
really a developer)
On Aug 26, 10:08 am, "Philippe Saade"
>> I didn't find NTL that easy to use. Perhaps it depends on the code
>> style of the reader and writer. I had a look at singular 2 years ago,
>> and I did not find it easy at all (and it was not available as a
>> library anyway).
>> I didn't look at ginac recently, but I did 8 years ago when I st
Hi, I want to propose a process to increase the quality of the Sage
documentation. This is the by far most annoying thing about Sage
according to the last survey. I think the userbase is already big and
willing enough to contribute more documentation. To do this in a more
coordinated way, there sh
On Aug 26, 1:19 am, "Ondrej Certik" <[EMAIL PROTECTED]> wrote:
> On Tue, Aug 26, 2008 at 10:16 AM, Burcin Erocal <[EMAIL PROTECTED]> wrote:
>
> > On Tue, 26 Aug 2008 00:40:22 -0700 (PDT)
> > Michel <[EMAIL PROTECTED]> wrote:
>
> >> An assumption framework is non-trivial as it is basically
> >> com
Hi
It seems that if you are logged as a normal user, browse the published
worksheet and try to Edit a Copy, it just create a copy for user "Pub"
but not for the regular user.
So you can not Edit a personal copy.
Maybe somebody can confirm the bug
Philippe
PS : Sage 3.1.1
--~--~-~--~-
On Tue, Aug 26, 2008 at 2:46 AM, parisse
<[EMAIL PROTECTED]> wrote:
>
>> Even at 10 minutes with no optimization
>> that seriously tests my patience. And 72 minutes with
>> optimization is real deal breaker.
>>
>
> !
I am very impatient.
>> > (e) Perhaps. From my own experience, it is not easy
This morning, I posted a mail concerning a compilation pb (unable to
find libstdc++.
The machine is an AMD64, Debian Lenny.
The system was updated for the last time near August 1.
We "apt-get upgraded" it, and now, compilation is ok...
So, if you use this Debian version, upgrade your system be
>>> Is the syntax for this stuff set in stone? I'm not sure I like the
>>> equality inside the subs call. Equality is reflexive, but
>>> substitution is a one way operation. What about a dictionary, sage: (a
>>> +2*b).subs({a+b:x}), or even just a single equal sign, like keyword
>>> args, sage:
> If you can provide more examples of what you need, I could probably put
> up patches wrapping that functionality fairly easily/quickly.
>
> As a first step, I suppose you need the nops, and ops functions of
> maple. These will be on the top of my todo list.
For inspiration in sympy we currently
> Even at 10 minutes with no optimization
> that seriously tests my patience. And 72 minutes with
> optimization is real deal breaker.
>
!
> > (c) Did you first look at the giac.info page?
>
> I don't know what that is. However, I expect to be able
> to cd to the source directory, start lookin
On Tue, Aug 26, 2008 at 10:35 AM, Burcin Erocal <[EMAIL PROTECTED]> wrote:
>
> On Tue, 26 Aug 2008 00:42:21 -0700
> "William Stein" <[EMAIL PROTECTED]> wrote:
>
>> > Burcin, would LGPL be suitable for you to contribute to sympy, or is
>> > LGPL not protective enough for you?
>>
>> Since Burcin's w
On Tue, 26 Aug 2008 00:42:21 -0700
"William Stein" <[EMAIL PROTECTED]> wrote:
> > Burcin, would LGPL be suitable for you to contribute to sympy, or is
> > LGPL not protective enough for you?
>
> Since Burcin's whole proposal is to use GiNaC, I suspect that he is only going
> to write something i
On Aug 26, 1:27 am, "William Stein" <[EMAIL PROTECTED]> wrote:
> On Tue, Aug 26, 2008 at 1:19 AM, Ondrej Certik <[EMAIL PROTECTED]> wrote:
> >> qepcad relies on an aging library saclib for the algebraic data
> >> structures. It would be a worthwhile project to implement CAD/port
> >> qepcad s
On Tue, Aug 26, 2008 at 1:19 AM, Ondrej Certik <[EMAIL PROTECTED]> wrote:
>
> On Tue, Aug 26, 2008 at 10:16 AM, Burcin Erocal <[EMAIL PROTECTED]> wrote:
>>
>> On Tue, 26 Aug 2008 00:40:22 -0700 (PDT)
>> Michel <[EMAIL PROTECTED]> wrote:
>>
>>>
>>> An assumption framework is non-trivial as it is ba
On Tue, Aug 26, 2008 at 10:16 AM, Burcin Erocal <[EMAIL PROTECTED]> wrote:
>
> On Tue, 26 Aug 2008 00:40:22 -0700 (PDT)
> Michel <[EMAIL PROTECTED]> wrote:
>
>>
>> An assumption framework is non-trivial as it is basically
>> computational
>> real algebraic geometry.
>>
>> Recenty there was a post
On Tue, 26 Aug 2008 00:40:22 -0700 (PDT)
Michel <[EMAIL PROTECTED]> wrote:
>
> An assumption framework is non-trivial as it is basically
> computational
> real algebraic geometry.
>
> Recenty there was a post about QEPCAD (http://www.cs.usna.edu/~qepcad/
> B/QEPCAD.html).
> Perhaps this might
On Tue, Aug 26, 2008 at 9:53 AM, William Stein <[EMAIL PROTECTED]> wrote:
>
> On Tue, Aug 26, 2008 at 12:47 AM, mabshoff <[EMAIL PROTECTED]> wrote:
>>
>> On Aug 26, 12:34 am, "Ondrej Certik" <[EMAIL PROTECTED]> wrote:
>>
>> Hi,
>>
>>> > Well, Sage developers like Python, Cython and C while Maxima
On Tue, Aug 26, 2008 at 12:47 AM, mabshoff <[EMAIL PROTECTED]> wrote:
>
> On Aug 26, 12:34 am, "Ondrej Certik" <[EMAIL PROTECTED]> wrote:
>
> Hi,
>
>> > Well, Sage developers like Python, Cython and C while Maxima
>> > developers like lisp (at least for the low level stuff) - so we are
>> > having
On Aug 26, 12:34 am, "Ondrej Certik" <[EMAIL PROTECTED]> wrote:
Hi,
> > Well, Sage developers like Python, Cython and C while Maxima
> > developers like lisp (at least for the low level stuff) - so we are
> > having self selecting groups here. It is the best tool for the job,
> > but also the de
An assumption framework is non-trivial as it is basically
computational
real algebraic geometry.
Recenty there was a post about QEPCAD (http://www.cs.usna.edu/~qepcad/
B/QEPCAD.html).
Perhaps this might fit the bill?
Michel
On Aug 26, 8:43 am, "William Stein" <[EMAIL PROTECTED]> wrote:
> On M
> On Tue, Aug 26, 2008 at 9:15 AM, David Philp <[EMAIL PROTECTED]> wrote:
>>
>>
>> On 26/08/2008, at 5:09 PM, Burcin Erocal wrote:
>>> In[]:= Assuming[0>> Out[]= ArcCos[Cos[x]]
>>
>> In[]:= Simplify[ArcCos[Cos[x]], Assumptions -> 0 < x < Pi/2]
>> Out[] = x
>
> Exactly, you pass the assumptions as
On Tue, Aug 26, 2008 at 12:25 AM, Ondrej Certik <[EMAIL PROTECTED]> wrote:
> But did it ever happen to you Fernando that someone would plainly
> abuse ipython/numpy/scipy? Clearly ipython is way more popular than
> sympy, so if it doesn't happen for numpy/scipy/ipython, I don't think
> we have to
> Well, Sage developers like Python, Cython and C while Maxima
> developers like lisp (at least for the low level stuff) - so we are
> having self selecting groups here. It is the best tool for the job,
> but also the devil you know, so I don't see big changes here in the
> future.
Let me say tha
Yes, the nops and the ops functions are quite important.
Using ops I can work around quite a lot of missing
functionality because I've done it before in Maple.
I'll know more as I see what ginac/pynac can do.
Thanks,
Tim.
On Aug 26, 2008, at 3:28 AM, Burcin Erocal wrote:
If you can provide
Thanks,
I'll take a look. I'm going to be busy for a few days putting together
a revised CV so I can apply for a sessional position but I'll return
to this right afterwards.
Cheers,
Tim.
On Aug 26, 2008, at 3:22 AM, William Stein wrote:
OK, good. Again, please keep in mind that this is lite
On Tue, 26 Aug 2008 03:10:26 -0400
Tim Lahey <[EMAIL PROTECTED]> wrote:
>
> On Aug 26, 2008, at 1:55 AM, William Stein wrote:
>
> > Do complain if you can't. Also, let meknow if you have trouble
> > installing
> > pynac -- it's very new (1 day old!) so installation might not "just
> > wor
On Tue, Aug 26, 2008 at 12:22 AM, Burcin Erocal <[EMAIL PROTECTED]> wrote:
>
> On Mon, 25 Aug 2008 16:50:43 -0700 (PDT)
> Jason Merrill <[EMAIL PROTECTED]> wrote:
>
>>
>> On Aug 25, 12:50 pm, "William Stein" <[EMAIL PROTECTED]> wrote:
>
>> >
>> > Burcin -- I did actually mostly implement pattern
On Tue, Aug 26, 2008 at 9:09 AM, Burcin Erocal <[EMAIL PROTECTED]> wrote:
>
> On Tue, 26 Aug 2008 08:29:33 +0200
> "Ondrej Certik" <[EMAIL PROTECTED]> wrote:
>
>>
>> On Tue, Aug 26, 2008 at 12:49 AM, William Stein <[EMAIL PROTECTED]> wrote:
>> >
>> >> BTW, one important warning: ginac and sympycor
On Mon, 25 Aug 2008 16:50:43 -0700 (PDT)
Jason Merrill <[EMAIL PROTECTED]> wrote:
>
> On Aug 25, 12:50 pm, "William Stein" <[EMAIL PROTECTED]> wrote:
> >
> > Burcin -- I did actually mostly implement pattern matching in Pynac.
> > Some examples:
> > sage: (sin(x)^2 + cos(x)^2).sub
On Tue, Aug 26, 2008 at 12:10 AM, Tim Lahey <[EMAIL PROTECTED]> wrote:
>
> On Aug 26, 2008, at 1:55 AM, William Stein wrote:
>
>> Do complain if you can't. Also, let meknow if you have trouble
>> installing
>> pynac -- it's very new (1 day old!) so installation might not "just work"
>> yet
>> on
On Tue, Aug 26, 2008 at 12:09 AM, William Stein <[EMAIL PROTECTED]> wrote:
>> I don't know if for this particular project it's a
>> realistic/valid/interesting solution or not, but how about using LGPL
>> as a middle solution?
>
> This is not an option because Pynac derives from Ginac and Ginac
>
On 26/08/2008, at 5:09 PM, Burcin Erocal wrote:
> In[]:= Assuming[0 Out[]= ArcCos[Cos[x]]
In[]:= Simplify[ArcCos[Cos[x]], Assumptions -> 0 < x < Pi/2]
Out[] = x
==
David J Philp
Postdoctoral Fellow
National Centre for Epidemiology and Population Health
Building 6
On Aug 26, 2008, at 1:55 AM, William Stein wrote:
Do complain if you can't. Also, let meknow if you have trouble
installing
pynac -- it's very new (1 day old!) so installation might not "just
work" yet
on all Sage-supported platforms.
-- William
I managed to install pynac fine on my M
On Tue, 26 Aug 2008 08:29:33 +0200
"Ondrej Certik" <[EMAIL PROTECTED]> wrote:
>
> On Tue, Aug 26, 2008 at 12:49 AM, William Stein <[EMAIL PROTECTED]> wrote:
> >
> >> BTW, one important warning: ginac and sympycore are missing
> >> assumptions and sympy only has very trivial ones, like positive,
On Tue, Aug 26, 2008 at 12:06 AM, Fernando Perez <[EMAIL PROTECTED]> wrote:
>
> On Mon, Aug 25, 2008 at 10:58 AM, William Stein <[EMAIL PROTECTED]> wrote:
>
>>> As to GPL vs BSD, I am sad that some people will not contribute to a
>>> BSD project and some other people will not use a GPL project. Bu
On Mon, Aug 25, 2008 at 10:58 AM, William Stein <[EMAIL PROTECTED]> wrote:
>> As to GPL vs BSD, I am sad that some people will not contribute to a
>> BSD project and some other people will not use a GPL project. But my
>> intuition says that the license is not the main reason. If sympy was
>> as
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