Hi William
On Wed, Sep 02, 2009 at 10:31:01PM -0700, William Stein wrote:
Is this the intended behaviour?
sage: z=1.+sqrt(-1); print z; z.base_ring()
1.00 + 1.00*I
Symbolic Ring
sage: z=1.+sqrt(-1.); print z; z.base_ring()
Hi Martin (and Sage-devel),
I discovered that polynomial substitution is badly inconsistent between the
symbolic ring and multivariate polynomials:
sage: R.x,y = QQ[]
sage: f = x + 2*y
sage: f.subs(x=y,y=x)
3*y
sage: var('x,y')
sage: f = x + 2*y
sage: f.subs(x=y,y=x)
2*x + y
See
2009/9/2 Jan Groenewald j...@aims.ac.za
Hi William
On Wed, Sep 02, 2009 at 10:31:01PM -0700, William Stein wrote:
Is this the intended behaviour?
sage: z=1.+sqrt(-1); print z; z.base_ring()
1.00 + 1.00*I
Symbolic Ring
sage:
Hi William
On Wed, Sep 02, 2009 at 11:18:40PM -0700, William Stein wrote:
If you take any integer (or rational) alpha such that alpha is not a
perfect square, and try to compute sqrt(alpha), Sage promotes alpha to the
symbolic ring (SR) and takes the square root there. Thus the
I'm the originator. In fairness to Jan, I must say that I only showed
him the code and output with no other comment than that I hoped that
the students would not ask me to explain it.
I've in the meantime found a way of illustrating the point I meant to
make more clearly.
sage: z=1.+sqrt(-1)
2009/9/2 Dirk dirk.lau...@gmail.com
I'm the originator. In fairness to Jan, I must say that I only showed
him the code and output with no other comment than that I hoped that
the students would not ask me to explain it.
I've in the meantime found a way of illustrating the point I meant to
Hi William,
On Sep 3, 8:18 am, William Stein wst...@gmail.com wrote:
I am not sure what something like integers with I adjoined is?
I guess that means the complex numbers of the fomr a + bI with a, b
integers, or Z[I] (the Gaussian Integers). Mathematica prides itself
to be able to apply
2009/9/3 javier vengor...@gmail.com
Hi William,
On Sep 3, 8:18 am, William Stein wst...@gmail.com wrote:
I am not sure what something like integers with I adjoined is?
I guess that means the complex numbers of the fomr a + bI with a, b
integers, or Z[I] (the Gaussian Integers).
givaro seems to be listing the powers of a multiplcative generator,
since that's how givaro represents finite field elements, so it would
be much harder (and slower) for it to do otherwise.
Personally I'm happy to allow Sage to decide which of the 4
implementations is used depending on the
I forwarded it to our team list.
I suppose, that your homomorphism uses Singulars map internally.
That should be a good solution for more than two parallel
substitutions.
Michael
On 3 Sep., 08:18, William Stein wst...@gmail.com wrote:
Hi Martin (and Sage-devel),
I discovered that polynomial
On Sep 3, 9:36 am, William Stein wst...@gmail.com wrote:
Sage has the Gaussian integers, and I'm sure the basic arithmetic and
functionality is as good or better than Mathematica already.
Sure, what I meant (sorry if I wasn't very clear) is to make an
straightforward way to access it, kind of
On Thursday 03 September 2009, William Stein wrote:
Hi Martin (and Sage-devel),
I discovered that polynomial substitution is badly inconsistent between the
symbolic ring and multivariate polynomials:
sage: R.x,y = QQ[]
sage: f = x + 2*y
sage: f.subs(x=y,y=x)
3*y
sage: var('x,y')
sage:
2009/9/3 javier vengor...@gmail.com:
On Sep 3, 9:36 am, William Stein wst...@gmail.com wrote:
Sage has the Gaussian integers, and I'm sure the basic arithmetic and
functionality is as good or better than Mathematica already.
Sure, what I meant (sorry if I wasn't very clear) is to make an
So, does anyone around here want to give a talk or an exhibition or something
at this conference by the Fachgruppe Computeralgebra in Germany? I think a
quick 'I might be interested' would suffice. I can also ask for more details
if that is what is required.
Cheers,
Martin
--
name: Martin
But after including '-lm' it fails again with the following error:
Bill, could you send me the exact list of commands to arrive at this
error. Maybe you even have the full log of this 'make'.
Are you sure that you have the files lang.as etc. from the Aldor.org
server? Actually these files
I might be interested.
But I don't feel I can talk to industrials about Sage yet.
#Serge
Martin Albrecht пишет:
So, does anyone around here want to give a talk or an exhibition or something
at this conference by the Fachgruppe Computeralgebra in Germany? I think a
quick 'I might be
Ralf,
I am sorry, I don't the logs to send but if you have any problems with
the instructions below, then I can reproduce and send them later.
Assuming that you already have Aldor and Sage installed, the commends:
$ cd ~/sage-4.1.1
$ wget
On Sep 3, 10:50 am, Martin Albrecht m...@informatik.uni-bremen.de
wrote:
So, does anyone around here want to give a talk or an exhibition or
something...
I'm interested.
This might be useful for Sage in several ways: New contacts in Germany
(roughly #2 in the stats), improve our skills of
is this not just a curiosity? Maybe a useful one for teaching,
though, and implementing this would certainly be possible.
Very useful. I had to resort to some annoying crutches (i.e., using
the theorem in the code instead of discovering the theorem via the
demonstration of the code) to do
On Sep 3, 12:36 am, William Stein wst...@gmail.com wrote:
Sage has the Gaussian integers, and I'm sure the basic arithmetic and
functionality is as good or better than Mathematica already.
sage: R.I = ZZ[sqrt(-1)]; R
Order in Number Field in I with defining polynomial x^2 + 1
Okay, this
On Thu, Sep 3, 2009 at 9:15 AM, John H Palmieri jhpalmier...@gmail.comwrote:
On Sep 3, 12:36 am, William Stein wst...@gmail.com wrote:
Sage has the Gaussian integers, and I'm sure the basic arithmetic and
functionality is as good or better than Mathematica already.
sage: R.I =
2009/9/3 John H Palmieri jhpalmier...@gmail.com:
On Sep 3, 12:36 am, William Stein wst...@gmail.com wrote:
Sage has the Gaussian integers, and I'm sure the basic arithmetic and
functionality is as good or better than Mathematica already.
sage: R.I = ZZ[sqrt(-1)]; R
Order in Number Field
Hi Sage-Devel,
What do you think of this:
sage: var('x, i')
sage: solve(x^2 + i == 0, x)
[x == -sqrt(-I), x == sqrt(-I)]
Basically, I make a purely symbolic variable which I happen to call
i, and it gets treated somewhere (presumably in Maxima) as if it
were sqrt(-1).
Here is another instance
Hi,
I've been spending the last few days going between writing a lot of
code with very math heavy Sphinx docstrings containing many backticks,
and writing LaTeX documents (papers/notes/etc.) using $ signs for math
mode. It is driving me totally crazy! I constantly accidentally put
$'s in my
2009/9/2 Martin Albrecht m...@informatik.uni-bremen.de:
doc/en/constructions/rings.rst +58
sage: R = singular.ring(97, '(a,b,c,d)', 'lp')
sage: I = singular.ideal(['a+b+c+d', 'ab+ad+bc+cd',
'abc+abd+acd+bcd', 'abcd-1'])
sage: R
Expected:
// characteristic : 97
//
On Thu, Sep 3, 2009 at 12:09 PM, William Steinwst...@gmail.com wrote:
Hi,
I've been spending the last few days going between writing a lot of
code with very math heavy Sphinx docstrings containing many backticks,
and writing LaTeX documents (papers/notes/etc.) using $ signs for math
mode.
On Thu, Sep 3, 2009 at 12:09 PM, William Steinwst...@gmail.com wrote:
Hi,
I've been spending the last few days going between writing a lot of
code with very math heavy Sphinx docstrings containing many backticks,
and writing LaTeX documents (papers/notes/etc.) using $ signs for math
mode.
On Thu, 3 Sep 2009, William Stein wrote:
Hi,
I've been spending the last few days going between writing a lot of
code with very math heavy Sphinx docstrings containing many backticks,
and writing LaTeX documents (papers/notes/etc.) using $ signs for math
mode. It is driving me totally
On Sep 3, 2009, at 12:28 PM, Ondrej Certik wrote:
On Thu, Sep 3, 2009 at 12:09 PM, William Steinwst...@gmail.com
wrote:
Hi,
I've been spending the last few days going between writing a lot of
code with very math heavy Sphinx docstrings containing many
backticks,
and writing LaTeX
I'm interested.
This might be useful for Sage in several ways: New contacts in Germany
(roughly #2 in the stats), improve our skills of communicating Sage:
http://groups.google.com/group/sage-marketing (poster, fact sheet,
stickers, etc.) and it's an additional selling point for Sage to be
On Sep 3, 2:28 pm, William Stein wst...@gmail.com wrote:
Hi Sage-Devel,
What do you think of this:
sage: var('x, i')
sage: solve(x^2 + i == 0, x)
[x == -sqrt(-I), x == sqrt(-I)]
Basically, I make a purely symbolic variable which I happen to call
i, and it gets treated somewhere
On Sep 3, 2009, at 12:49 PM, kcrisman wrote:
On Sep 3, 2:28 pm, William Stein wst...@gmail.com wrote:
Hi Sage-Devel,
What do you think of this:
sage: var('x, i')
sage: solve(x^2 + i == 0, x)
[x == -sqrt(-I), x == sqrt(-I)]
Basically, I make a purely symbolic variable which I happen
William Stein wrote:
Hi Sage-Devel,
What do you think of this:
I think you are right that this is a huge bug in our interface to maxima.
Jason
--
Jason Grout
--~--~-~--~~~---~--~~
To post to this group, send an email to sage-devel@googlegroups.com
To
I believe that people rather than abstractions should take priority.
We are used to using $...$ for maths, so why should we not make the
docs markup system we use adapt to us rather than the other way round?
I find the view 'let's keep ReST/Sphinx in Sage pure ' very hard to
understand!
On Sep 3, 1:22 pm, John Cremona john.crem...@gmail.com wrote:
I have never used Ondrej's :math: in front, but maybe I should have.
I recall seeing somewhere that in ReST/Sphinx you can configure a
default mode for the backticks, so I think Ondrej is writing docs
for one his other systems and he
[X] Yes, give me $'s!
[ ] No, this doesn't bug me; let's keep ReST/Sphinx in Sage pure.
I've been annoyed by this ever since we switched over to ReST.
I also have been annoyed by this.
Nick
--~--~-~--~~~---~--~~
To post to this group, send an email to
On Thu, Sep 3, 2009 at 1:22 PM, John Cremonajohn.crem...@gmail.com wrote:
I believe that people rather than abstractions should take priority.
We are used to using $...$ for maths, so why should we not make the
docs markup system we use adapt to us rather than the other way round?
I find
On Sep 3, 1:40 pm, Rob Beezer goo...@beezer.cotse.net wrote:
On Sep 3, 1:22 pm, John Cremona john.crem...@gmail.com wrote:
I have never used Ondrej's :math: in front, but maybe I should have.
I recall seeing somewhere that in ReST/Sphinx you can configure a
default mode for the backticks,
Hi,
Is there any way of organizing worksheets on a Sage notebook server? If you
have many worksheets, it can be difficult to find them
and it would be nice to be able to organize them using tags, categories or
folders. One example of this would be if wanted to write a chapter based
book
using
On Sep 3, 2009, at 2:17 PM, Brian Granger wrote:
Hi,
Is there any way of organizing worksheets on a Sage notebook
server? If you have many worksheets, it can be difficult to find them
and it would be nice to be able to organize them using tags,
categories or folders. One example of
[X] Yes, give me $'s!
[ ] No, this doesn't bug me; let's keep ReST/Sphinx in Sage pure.
David
--~--~-~--~~~---~--~~
To post to this group, send an email to sage-devel@googlegroups.com
To unsubscribe from this group, send an email to
Hi Bill,
On 09/03/2009 02:48 PM, Bill Page wrote:
Ralf,
I am sorry, I don't the logs to send but if you have any problems with
the instructions below, then I can reproduce and send them later.
Assuming that you already have Aldor and Sage installed, the commends:
$ cd ~/sage-4.1.1
$
On Sep 3, 2:32 pm, Ralf Hemmecke r...@hemmecke.de wrote:
That seems to extract and then starts doing something, but without
success. I have sage 4.1. Do I really need 4.1.1?
Is it relevant whether or not I run on a 32bit system?
I don't have ecl on my system. Shouldn't the fricas spkg just
Ralf,
On Thu, Sep 3, 2009 at 5:32 PM, Ralf Hemmecke wrote:
On 09/03/2009 02:48 PM, Bill Page wrote:
I am sorry, I don't the logs to send but if you have any problems with
the instructions below, then I can reproduce and send them later.
Assuming that you already have Aldor and Sage
and it bugs me that I have to type
:math:`\eta`
instead of just $\eta$. So how about submitting a patch to sphinx fixing it?
+1
Cheers,
Georg
Ondrej
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To post to this group, send an email to sage-devel@googlegroups.com
To unsubscribe
On Sep 3, 12:37 pm, William A. Stein wst...@gmail.com wrote:
On Sep 3, 2009, at 12:28 PM, Ondrej Certik wrote:
So how about submitting a patch to sphinx
fixing it?
Ondrej
That's a good idea. It would certainly be better than having to
change Sage -- it would keep things pure, but
2009/9/3 Golam Mortuza Hossain gmhoss...@gmail.com:
Hi,
On Thu, Sep 3, 2009 at 5:00 PM, William A. Steinwst...@gmail.com wrote:
sage: var('i')
i
sage: a = i^2
sage: a.simplify_full()
-1
I think my email must have not been clear. I think it's an instance
of a *HUGE BUG* in Sage. No
2009/9/3 Brian Granger ellisonbg@gmail.com:
Is there any way of organizing worksheets on a Sage notebook
server? If you have many worksheets, it can be difficult to find them
and it would be nice to be able to organize them using tags,
categories or folders. One example of this
Is there any way of organizing worksheets on a Sage notebook
server? If you have many worksheets, it can be difficult to find them
and it would be nice to be able to organize them using tags,
categories or folders. One example of this would be if wanted to
write a chapter based book
William Stein wrote:
Here's my scraps of notes related to notebook work for Oct - Dec, by the way:
http://sage.math.washington.edu/home/wstein/tmp/sageuse/
Assuming it's OK, I've started to organize / summarize ideas.txt at
http://wiki.sagemath.org/SageUsability
Please feel free to amend,
John H Palmieri wrote:
On Sep 3, 12:37 pm, William A. Stein wst...@gmail.com wrote:
On Sep 3, 2009, at 12:28 PM, Ondrej Certik wrote:
So how about submitting a patch to sphinx
fixing it?
Ondrej
That's a good idea. It would certainly be better than having to
change Sage -- it would
On Sep 3, 5:54 pm, Jason Grout jason-s...@creativetrax.com wrote:
John H Palmieri wrote:
On Sep 3, 12:37 pm, William A. Stein wst...@gmail.com wrote:
On Sep 3, 2009, at 12:28 PM, Ondrej Certik wrote:
So how about submitting a patch to sphinx
fixing it?
Ondrej
That's a good idea.
Every time (that I can remember) that I've tried searching google groups
online for a post, I've given up in frustration and gone back to
searching in thunderbird (I follow sage-devel from gmane). Just now, I
tried to find a specific thread. When keywords didn't work, I quickly
found the
On Sep 3, 7:12 pm, Jason Grout jason-s...@creativetrax.com wrote:
Every time (that I can remember) that I've tried searching google groups
online for a post, I've given up in frustration and gone back to
searching in thunderbird (I follow sage-devel from gmane). Just now, I
tried to find a
Hi folks,
This is the first alpha release of Sage 4.1.2. Source and the
sage.math binary are available at
http://sage.math.washington.edu/home/mvngu/release/upgrade/sage-4.1.2.alpha0.tar
2009/9/3 Pat LeSmithe qed...@gmail.com:
William Stein wrote:
Here's my scraps of notes related to notebook work for Oct - Dec, by the way:
http://sage.math.washington.edu/home/wstein/tmp/sageuse/
Assuming it's OK, I've started to organize / summarize ideas.txt at
On Thu, Sep 3, 2009 at 7:12 PM, Jason Groutjason-s...@creativetrax.com wrote:
Every time (that I can remember) that I've tried searching google groups
online for a post, I've given up in frustration and gone back to
searching in thunderbird (I follow sage-devel from gmane). Just now, I
I noticed SVG-edit, a Scalable Vector Graphics (SVG) editor that works
entirely in capable browsers [1]:
http://code.google.com/p/svg-edit/
Stable and beta demos:
http://svg-edit.googlecode.com/svn/tags/stable/editor/svg-editor.html
On Sep 3, 2009, at 10:17 PM, Pat LeSmithe wrote:
I noticed SVG-edit, a Scalable Vector Graphics (SVG) editor that works
entirely in capable browsers [1]:
http://code.google.com/p/svg-edit/
Stable and beta demos:
http://svg-edit.googlecode.com/svn/tags/stable/editor/svg-editor.html
On Fri, Sep 4, 2009 at 1:05 PM, Minh Nguyennguyenmi...@gmail.com wrote:
Hi folks,
This is the first alpha release of Sage 4.1.2. Source and the
sage.math binary are available at
http://sage.math.washington.edu/home/mvngu/release/upgrade/sage-4.1.2.alpha0.tar
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