One question: will Pari 2.4 be here to stay? If so, then it's (eventually)
inevitable that a port will have to be made. However, I'm not familiar with
Pari's development, so I don't know if the new API is stable enough yet to
justify a port.
Ronan
De:
help in
any way?
Thanks for listening,
Ronan Paixão
Veja quais são os assuntos do momento no Yahoo! +Buscados
http://br.maisbuscados.yahoo.com
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Congratulations!
Ronan
De: William Stein wst...@gmail.com
Para: sage-devel sage-devel@googlegroups.com; Minh Nguyen
nguyenmi...@gmail.com
Enviadas: Domingo, 21 de Março de 2010 15:14:55
Assunto: [sage-devel] Annual Spies Prize Winner Announced!
Hello,
Em Qui, 2009-06-18 às 20:41 +0200, William Stein escreveu:
My most important debugging tool is logical deduction using my brain.
-- William
Sounds very deep and witty. That's gotta become a quote on slashdot.
Ronan
--~--~-~--~~~---~--~~
To post to this
I'm no expert in design, but from what I can get from my personal feel:
from the Mathematica site, what I think called the attention of the OP
is that it's red. Simply as that. From the wikipedia page on Marketing
(which by the way seems pretty informational):
Requirements of a good
Em Qua, 2009-05-06 às 00:29 -0700, William Stein escreveu:
On Tue, May 5, 2009 at 11:57 PM, Robert Bradshaw
rober...@math.washington.edu wrote:
What about
publishing (collections of) worksheets under the CC license? Code
snippets in books? Are your books GPL compatible? (Maybe you could
Em Dom, 2009-03-15 às 17:11 -0700, kcrisman escreveu:
Wouldn't it be clearer if the error message read
NameError: name 't' is not defined, try var('t') beforehand
or something similar?
Perhaps as Carl deprecates common anticipated behaviors he'd be open
to having his patch
Em Seg, 2009-03-09 às 11:11 -0700, Robert Bradshaw escreveu:
On Mar 9, 2009, at 10:52 AM, Ondrej Certik wrote:
On Mon, Mar 9, 2009 at 10:41 AM, Robert Bradshaw
rober...@math.washington.edu wrote:
On Mar 8, 2009, at 11:14 AM, Prabhu Ramachandran wrote:
On 03/08/09 19:19, William
+10
This is why I copied the notebook section as an example from the list
for 2008. Even though I would expect Google to be interested in funding
open source implementations of maths, I think it would be better if we
focus on the computer science/engineering side of things.
If we are
] ?
Ronan Paixão
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Personally I'd vote for making all files utf-8 encoded. That would
increase accuracy in names and would also enable easier translations for
all languages under the sky.
Ronan
Em Sex, 2009-02-27 às 13:57 -0800, mabshoff escreveu:
On Feb 27, 1:44 pm, John Cremona john.crem...@gmail.com
I'm not a mathematician, but a good idea could be improving Piecewise functions.
Ronan
Em Qua, 2009-02-25 às 14:38 -0600, Francisco Veach escreveu:
I'm planning a semester-long project for the fall that will involve
implementing/improving algebra related functions of Sage. I'm taking
this
Em Sáb, 2009-02-21 às 07:57 -0800, Maurizio escreveu:
I admit that I've never heard of Pynac.
Actually there are two Pynac's out there, one of them is a sage insider
project to replace Maxima as a symbolics backend, since that greatly
impacts performance and builds.
I am wondering what do
Em Sex, 2009-02-06 às 22:18 +0200, ahmet alper parker escreveu:
One more comment on the subject. As we were trying to solve a
Sturm-Lioville boundary value problem by finite difference method, we
calculated eigenvalues and eigenvectors of some matrices on matlab and
mathematica. In both of
Em Sex, 2009-02-06 às 12:59 -0800, mabshoff escreveu:
On Feb 6, 9:53 am, Ronan Paixão ronanpai...@yahoo.com.br wrote:
Em Ter, 2009-01-27 às 06:13 -0800, mabshoff escreveu:
SNIP
Hi Ronan,
I'm against all that SUA stuff. I completely agree it's a great help to
get sage running
Em Sáb, 2009-02-07 às 11:52 +1100, Minh Nguyen escreveu:
Hi folks,
Paul Zimmermann delivered a talk on Sage on 2009-01-19. This
information has been added to the Sage talks wiki at
http://wiki.sagemath.org/Talks
Thank you, Paul, for your effort in spreading the word about Sage.
He
Of course, concerns about security and usability may well restrict the
privileges to a specific subset of Sage's commands and fraction of
server resources. Still, it would be great if Wikipedia entries, say,
could include pertinent, pedagogical gadgets to illustrate concepts
which are
Em Qua, 2009-02-04 às 17:44 -0800, William Stein escreveu:
You are of course welcome to believe this, but the major competition
for Mathematica
is probably not Sage, but Matlab.
For many engineering applications Matlab blows Mathematica out of the
water, and I wouldn't even consider
Em Sex, 2009-01-23 às 09:49 -0800, rjf escreveu:
On Jan 22, 6:26 pm, mhampton hampto...@gmail.com wrote:
...
A python/
cython/javascript spreadsheet for the Sage notebook would be great -
unfortunately I'm not going to write one. I think it would be hard to
do it right.
-M.
Em Seg, 2009-02-02 às 15:56 -0800, Roman Pearce escreveu:
A new version of Maple is only released every year, and there are lots
of people who expect their 10 year old code to run. It's almost a
Microsoft-like situation. And since people have to pay for upgrades
there's an entirely
Em Dom, 2009-01-25 às 18:04 -0800, kcrisman escreveu:
Will there be a sage.exe file (or something like that) that my
students can download straight from sagemath.org and use right away on
a Windows machine?
I believe this is the big point of the whole thread. Even though sage's
users
Em Qui, 2009-01-08 às 14:41 -0800, mabshoff escreveu:
SNIP
The gcc memory requirements are not consistent, i.e. gcc 3.4.x does
compile the LinBox extension using about 350 MB peak or so. For gcc
4.x it seems that maybe 750 MB is peak consumption. So I am not sure
what to do, i.e. if we make
http://sage.math.washington.edu/home/mhansen/output/html/en/bordeaux_2008/
http://sage.math.washington.edu/home/mhansen/output/pdf/en/bordeaux_2008/bordeaux_2008.pdf
Those look beautiful, specially the colored latex.
But the html version is displaying the formulas with a 1-pixel border in
It would be neat if the worksheet could be generated from the .tex
source, with perhaps extra examples, so the author doesn't have to do
something totally separate/manually keep them in sync. But perhaps
you're already thinking along these lines.
- Robert
I see many ideas in
I preferred having the three links (with support), but this is nice
anyway.
For the mug, does 1662 pixels mean the picture loops around the mug or
does it only cover the front or something like that?
Ronan
Em Sáb, 2008-12-13 às 20:46 -0800, mhampton escreveu:
OK, version four is up at:
I also prefer the second one. As a business card it's a bit more
cluttered, but I think it's useful for people to try online before
downloading hundreds of megabytes.
At least this way it's explicit that they have that option.
Ronan
Em Sáb, 2008-12-13 às 06:47 -0800, mhampton escreveu:
One
Is there some way to do the sage logo in sage code? That would make
sense.
Ronan
Em Sáb, 2008-12-13 às 08:16 -0800, mhampton escreveu:
I did try to work in the official png, but the resolution wasn't
good enough. I was wondering about that aspect - i.e. keeping a
consistent sage brand. I
It would be nice to see how that ad will impact sage's site measures.
Em Sex, 2008-12-12 às 16:12 +0100, Jaap Spies escreveu:
Harald Schilly wrote:
On Fri, Dec 12, 2008 at 13:52, Jaap Spies j.sp...@hccnet.nl wrote:
Hi,
Today the postman delivered the journal! See my scan.
Very
Actually, I prefer the theme as it is.
Probably, a lot of other people won't like the new one, specially
because it doesn't use white as a background (which sagemath.org also
uses). It seems to be tiresome to the eyes in my opinion.
Ronan Paixão
Em Sex, 2008-12-12 às 15:44 -0800, Elliott
Em Seg, 2008-12-08 às 12:25 -0200, Ronan Paixão escreveu:
Em Seg, 2008-12-08 às 05:50 -0800, mabshoff escreveu:
As I saw matplotlib/pylab being mentioned, in combination with
slowdowns, I
thought I'd mention that plotting in pylab itself goes
progressively slower.
On a system
It would be interesting to figure out how to build binaries on
sage.math that don't require SSE. I have no clue how to do this?
Does anybody have any ideas?
After searching around for a while, my best idea is to ask Clint
Whaley how to build Atlas in such a way that it doesn't use
I've had the same problem for a long time now, since Sage 3.1.something
but when I complained in IRC everybody just said you must use Sun's
java when I'm already using it. I'm just using Tachyon now.
Ronan
Em Sáb, 2008-12-06 às 12:51 -0800, David M. Monarres escreveu:
Hello,
When doing 3D
This makes sense for compactly supported functions.
How do you do that for something like f(x) = max(1,floor(x))?
sage: f(x)=max(1,floor(x))
sage: f(10)
1
sage: type(f)
class 'sage.calculus.calculus.CallableSymbolicExpression'
huh, there are some problems with this function, first because
of the first
one.
On Dec 7, 3:39 pm, Jaap Spies [EMAIL PROTECTED] wrote:
William Stein wrote:
On Sun, Dec 7, 2008 at 3:25 PM, Ronan Paixão [EMAIL PROTECTED] wrote:
I've had the same problem for a long time now, since Sage 3.1.something
but when I complained in IRC everybody just said you must
think that makes some sense.
Ronan Paixão
Em Sáb, 2008-12-06 às 11:39 -0500, Paul Butler escreveu:
Currently, taking the integral of a piecewise function in Sage gives
you the definite integral. I've proposed on trac that the integral of
piecewise functions be indefinite by default. This would
So all of the above leads me to believe that we must have a 100%
doctest coverage policy. As soon as we start giving out free passes
people will start to argue that their code should be exempted due to
BLAH BLAH BLAH and arguing with various people will take longer than
writing the
numbers to raw ones, otherwise they will pass sage types
to numpy and generate arrays of sage objects.
So far, I'm doing everything in pure python + numpy, for performance
reasons, though it would be nice to have some sage powers in the future.
Well, that's my 2 cents.
Ronan Paixão
.) to an integer
Does that belong to a ticket?
Ronan Paixão
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, 11:24 am, Jason Grout [EMAIL PROTECTED] wrote:
Ronan Paixão wrote:
I just found a problem with Integer(). It doesn't seem to work fine with
float strings.
Those work fine:
Integer(1)
Integer(1.)
But this doesn't:
Integer(1.)
More data:
Integer(RR('1.')) works
Integer(RR('1.0
Em Seg, 2008-11-24 às 13:05 -0800, jrpick escreveu:
For security, I just mean that if I have it running on a server, I
don't want people to be able to do malicious things like play with the
filesystem, send mail, or drop mysql tables. More than a sandbox,
however: you shouldn't be able to
Em Dom, 2008-11-23 às 03:13 -0800, mabshoff escreveu:
Hello folks,
we nearly ran out of space on /home for the first time in a while. The
following accounts are using more than 1GB space and on case your name
is one the list you should consider cleaning up unused files.
This should look
Em Seg, 2008-11-24 às 16:15 -0800, mabshoff escreveu:
On Nov 23, 6:23 pm, Ronan Paixão [EMAIL PROTECTED] wrote:
Em Dom, 2008-11-23 às 03:13 -0800, mabshoff escreveu: Hello folks,
Hi,
we nearly ran out of space on /home for the first time in a while. The
following accounts
Em Dom, 2008-11-23 às 14:15 -0800, mabshoff escreveu:
On Nov 23, 2:10 pm, David Joyner [EMAIL PROTECTED] wrote:
Sounds good to me.
Isn't it correct that only account holders can view the wiki page you
are planning?
We could restrict the page to people with logins, but that doesn't
' in the
beginning, so the user could answer everything up front.
Ronan Paixão
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one version.
But even that may be pointless, since having previous versions is the
whole point of using a version control system, and sage uses mercurial,
which should allow to revert to old spkgs.
Ronan Paixão
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/products/pil/ in sage. I don't see it at
http://sagemath.org/packages/standard/
It appears the newest version supports converting to/from numpy arrays:
http://effbot.org/zone/pil-changes-116.htm
Ronan Paixão
Em Sex, 2008-11-21 às 14:49 +1100, Alex Ghitza escreveu:
There was also this awesome
Ronan Paixão wrote:
Hey, that's much more awesome! It lacks some antialiasing, though.
Maybe we should add image manipulation support like those new
Mathematica features:
http://www.wolfram.com/products/mathematica/newin7/content/BuiltInImageProcessing/
It sure would be nice
as a function.
Ronan Paixão
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URLs
, figsize=8, viewer='tachyon')
Also, something with animate() would be nice to show off.
Ronan Paixão
Em Qui, 2008-11-20 às 15:28 -0500, David Joyner escreveu:
Sounds like they want two paragraphs on Sage, plus picture or graph, in word.
I am drawing ab blank as far as what a good picture/graph
Em Dom, 2008-11-16 às 19:53 -0800, William Stein escreveu:
On Sun, Nov 16, 2008 at 7:06 PM, Mike Hansen [EMAIL PROTECTED] wrote:
Most other math packages out there (or at least Mma and Matlab) use
frames instead of just axes. What I would recommend instead of using
axes is to use
Em Dom, 2008-11-16 às 11:44 -0800, William Stein escreveu:
Additionally, I think the Graphics wrapper should not be nearly as
heavy as it is. In particular, there's no way to get at and modify
the matplotlib subplot object. For example, I have some preliminary
code that would let one do
Em Sex, 2008-11-14 às 16:22 -0200, Ronan Paixão escreveu:
I recently thought about implementing more functions used by non-math
people (I'm an Electronic Engineering student).
I started by trying to make a Bode plot, but after a lot of digging to
find how to make subplots and how to use
This is a pretty nice description of how to get into development.
Ronan, I encourage you to submit a patch to the
developer guide with some text as above. At the least, put
something like that on the wiki.
William
Done.
http://wiki.sagemath.org/HowToBeginSageDevelopment
Ronan
have also added a
link to this page from the wiki main page, in the Development section.
Ronan Paixão
Em Sáb, 2008-11-15 às 15:01 -0800, mabshoff escreveu:
On Nov 15, 2:56 pm, Georg S. Weber [EMAIL PROTECTED]
wrote:
SNIP
But I don't think I open a ticket for this unless I have some
Em Sáb, 2008-11-15 às 15:56 -0800, mabshoff escreveu:
On Nov 15, 3:18 pm, Ronan Paixão [EMAIL PROTECTED] wrote:
Hi,
I have recently opened up a page about getting started in Sage
development in the wiki, as a suggestion from William
http://wiki.sagemath.org
):
sum(sum([f(j%7) for j in (0..oo) if jk]) for k in (0..oo)]))
using j and k, since i is parsed as the complex constant.
Ronan Paixão
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Em Qui, 2008-11-13 às 19:35 -0800, kcrisman escreveu:
http://www.apple.com/iphone/appstore/content/educationtop8application.html
http://www.colombiamug.com/ES/Bienvenidos.html
Just a reminder that there could be a very big 'market' for Sage Lite
if/when it appears... in the meantime sounds
if the user used a
custom figure() with different axis or would it be better to add another
kwarg like log=xy where x would make the x axis logarithmic and y
likewise for the y axis, avoiding the need for the user to deal with
matplotlib's figure()?
Ronan Paixão
and stuff like that.
Or just plain numerical features.
Ronan Paixão
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sage: numpy.linalg.inv(a)
array([[ 2.25125019e+15, -4.50250038e+15, 2.25125019e+15],
[ -4.50250038e+15, 9.00500077e+15, -4.50250038e+15],
[ 2.25125019e+15, -4.50250038e+15, 2.25125019e+15]])
I get this:
sage: scipy.linalg.inv(a)
array([[
I vote for 1j being the Python complex number. This is because the only
people I can ever imagine using the notation j in Sage are numerical
numpy-type users who would be very annoyed to get Sage complex numbers
ever.
Actually, at least Electric/Electronic Engineering doesn't use i
Sometime in January, I plan to get a public notebook server going and
I'd like to have some PR material ready to go.
When you do plan to get this server going, let me know. The new sagenb.org,
which is just a 64-bit linux vmware machine, seems to be actually working
extremely well.
to theora, even if it's not considered the technical winner, its
open nature should be valued.
Ronan Paixão
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be
better to only allow one substitution for x, since x already has an
established status (if one wants it even more generic, allow only
single-variable functions). That way calling f(5,3) would raise an error
and force the user to explicitly order the variables.
Ronan Paixão
Em Sex, 2008-11-07 às 12:25 -0800, Georg S. Weber escreveu:
Ahh,
better call it graduate mode instead of pedantic mode, at least in
the documentation.
:-)
Cheers,
gsw
I'd prefer blue-pill mode and red-pill mode :)
Ronan
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To post
be a link to some license if the country
doesn't support public domain, yet allow free usage.
Ronan Paixão
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For more
like
$ f(x) = x^3 + x + 1 $ or just use python's def for functions and *
for multiplication to make all cases clear. After all, quoting import
this: There should be one-- and preferably only one --obvious way to do
it.
Ronan Paixão
Em Qua, 2008-11-05 às 21:10 -0800, Nick Alexander escreveu
(like f,g) does function
application become the default. If I read in a paper:
f is not always a function name. In electric/electronic engineering, f
is also commonly used for frequency, which is usually a variable.
Ronan Paixão
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To post
Em Ter, 2008-11-04 às 18:03 -0800, William Stein escreveu:
On Tue, Nov 4, 2008 at 5:55 PM, Ronan Paixão [EMAIL PROTECTED] wrote:
Em Qua, 2008-11-05 às 12:07 +1100, Minh Nguyen escreveu:
On Wed, Aug 27, 2008 at 10:17 AM, Minh Nguyen [EMAIL PROTECTED] wrote:
Hi Harald,
On Tue
Em Qua, 2008-11-05 às 13:23 -0400, David Joyner escreveu:
Should we consider creating our own Sage documentation license?
As was pointed out, public domain not only doesn't exist in some
countries, it also isn't a license technically speaking.
Just now I noticed on the CC page that in Brazil
authentication and
authorization schemas to know.
Ronan Paixão
Em Ter, 2008-11-04 às 07:09 -0800, Rob Beezer escreveu:
Dan,
Thanks for the reply. Yes, I looked closely at SageTex a couple of
months ago. Its a great idea, but I think it maybe does the reverse
of what I want. I'd like to have
AM, Ronan Paixão [EMAIL PROTECTED] wrote:
Would it be possible to create a repository of talks about sage?
Ronan Paixão
It would be good to add to this:
http://sagemath.org/talks/
William
Em Ter, 2008-11-04 às 01:08 -0800, Craig Citro escreveu:
Hey Martin -- this looks great
Em Ter, 2008-11-04 às 18:56 -0600, Jason Grout escreveu:
On the numpy list, there has been discussion on PEP225, which advocates
for more custom inline operators in python, particularly to address
matrix multiplication versus element-wise multiplication. Fernando
Perez has put together a
function does it (and sometimes I don't even know there's a
function for it).
Ronan Paixão
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Em Ter, 2008-11-04 às 17:44 -0800, William Stein escreveu:
On Tue, Nov 4, 2008 at 11:46 AM, Ronan Paixão [EMAIL PROTECTED] wrote:
There are no talks from 2008. Somewhere there should be instructions on
how to get files there (who to send to). I noticed there have been quite
some talks
in previous e-mails may be
inaccurate (as some in this e-mail may also be, since IANAL).
Ronan Paixão
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For more
dilemma (with the added effect of making the novice user know the great
help an init file can provide).
Ronan Paixão
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don't know if this is the right(tm) way to do it, but it seems more
pythonic:
import os
[p for p in os.environ['PATH'].split(':') if os.path.exists('%s/%s' %
(p,'phc'))]
which should return a list with the paths in which the file 'phc'
exists, or an empty list if it doesn't
Ronan Paixão
Em
be easier to
push for a change in completion code.
Ronan Paixão
Em Ter, 2008-10-28 às 07:44 -0700, Tim Abbott escreveu:
On Oct 28, 7:32 am, mabshoff [EMAIL PROTECTED] wrote:
-1 on the rename, too. It will cause massive problems without any
serious benefit whatsoever. The manual clearly
Em Dom, 2008-11-02 às 16:26 -0800, William Stein escreveu:
On Sun, Nov 2, 2008 at 4:15 PM, Ronan Paixão [EMAIL PROTECTED] wrote:
don't know if this is the right(tm) way to do it, but it seems more
pythonic:
import os
[p for p in os.environ['PATH'].split(':') if os.path.exists('%s/%s
Em Dom, 2008-11-02 às 17:51 -0800, mabshoff escreveu:
On Nov 2, 5:32 pm, Ronan Paixão [EMAIL PROTECTED] wrote:
Em Dom, 2008-11-02 às 16:26 -0800, William Stein escreveu:
On Sun, Nov 2, 2008 at 4:15 PM, Ronan Paixão [EMAIL PROTECTED] wrote:
don't know if this is the right(tm
GPL.
Cheers,
Ronan Paixão
Electric Department
Instituto Militar de Engenharia
Em Sex, 2008-10-31 às 08:41 -0700, William Stein escreveu:
On Fri, Oct 31, 2008 at 8:35 AM, alunw [EMAIL PROTECTED] wrote:
Thanks for this.
I'll certainly consider doing this, though I'm still slightly
I also believe the bottom graph looks noisy.
Maybe clipping only the first third of the graph and stretching it to
fill the ad's width could make it better?
Otherwise, it looks like a very quality work. What did you use to design
it? Inkscape?
,
Ronan Paixão
Em Qua, 2008-10-22 às 16:56 -0700
Obviously, the intent is not just to have the function for certain
values, but to employ other powers of sage, including differentiation
and integration (not forgetting that the step function is the
integrated delta function). There are, though some other problems with
implementing those,
So, I have seen someone talk about those some time ago, but how is
their implementation going?
Both the step function u(x) and the impulse function delta(x) are
pretty useful in Engineering, specially when talking about Laplace and
Fourier transforms, so that could help a lot those who use Sage
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