[sage-devel] Making a mirror of the documentation

2009-08-20 Thread Thierry Dumont
Hi, Always for my university wide Sage server (yes, I'm back), I would like to make the Sage documentation available for all the users, together with other documentation (Python...). Is the best way to do: wget -r http://www.sagemath.org/doc/ or is there something better? Yours Thierry Dumont

[sage-devel] Re: Making a mirror of the documentation

2009-08-20 Thread Thierry Dumont
Harald Schilly a écrit : outch, please don't torture our poor server with wget -- and i guess it will not work. everything that's below /doc is 1:1 generated by Sage! ./sage - docbuild ... or if you have compiled it, it's already generated. There is also http://sagemath.org/doc-zip/ and

[sage-devel] Re: notebook rewrite

2009-08-21 Thread Thierry Dumont
Yoav Aner a écrit : only web-based requests. Google also try to push users to have a google account to authenticate. It might be a good or a bad thing, depending on your perspective. Amazon EC2 in that respect gives you more flexibility I believe. I would personally avoid either from a

[sage-devel] Strange message when starting the notebook

2009-09-10 Thread Thierry Dumont
launching the notebook as: notebook(port=8000,address=sage1-math.univ-lyon1.fr,secure=True,accounts=True) I get this: http://localhost:8000/?startup_token=aefaa3bb3f3354dbcc78eceba0c686f2: no such file or directory and I cannot connect...what happens? yours t.d. attachment: tdumont.vcf

[sage-devel] Problem sharing directory

2009-09-17 Thread Thierry Dumont
Hi, I want to launch 2 instances of sage on the same machine, and even more launch sage on 2 (3) machines sharing one directory by nfs. My notebook command is: notebook(open_viewer=False,directory='/ws/nbfiles',address='',secure=True,port=8001,timeout=3600,ulimit='-v 5',accounts=True)

[sage-devel] Re: Problem sharing directory

2009-09-18 Thread Thierry Dumont
William Stein a écrit : 2009/9/17 Thierry Dumont tdum...@math.univ-lyon1.fr: Hi, I want to launch 2 instances of sage on the same machine, and even more launch sage on 2 (3) machines sharing one directory by nfs. My notebook command is: notebook(open_viewer=False,directory='/ws/nbfiles

[sage-devel] Re: Problem sharing directory

2009-09-18 Thread Thierry Dumont
Robert Bradshaw a écrit : On Sep 17, 2009, at 11:26 PM, Thierry Dumont wrote: William Stein a écrit : 2009/9/17 Thierry Dumont tdum...@math.univ-lyon1.fr: Hi, I want to launch 2 instances of sage on the same machine, and even more launch sage on 2 (3) machines sharing one directory

[sage-devel] Re: the Sage notebook

2009-09-20 Thread Thierry Dumont
William Stein a écrit : That's excellent. I personally favor Pylons as well, but I thought Django is the more popular, and thus more hackable framework at the moment. I would love to see his code. Hi, There a ldap authentification plugin for Django:

[sage-devel] Identification with ldap.

2008-07-06 Thread Thierry Dumont
. Thierry Dumont Institut C. Jordan CNRS Université Lyon 1. Villeurbanne, France. --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit

[sage-devel] Re: Identification with ldap.

2008-07-06 Thread Thierry Dumont
Great! mabshoff a écrit : On Jul 6, 1:01 am, Thierry Dumont [EMAIL PROTECTED] wrote: Hello, Hi Thierry, As I explained some days ago on sage-support (am I on the good list here?), I would like to add ldap identification to Sage. This is the right list and hooking up Sage to use ldap

[sage-devel] Re: Identification with ldap.

2008-07-18 Thread Thierry Dumont
a true ldap). If you are looking for a beta-tester, It could be me :-) t.d. -- Thierry Dumont. Institut Camille Jordan -- Mathematiques-- Univ. Lyon I,43 Bd du 11 Novembre 1918, 69622 - Villeurbanne Cedex - France. [EMAIL PROTECTED] web: http://math.univ-lyon1.fr/~tdumont begin:vcard fn:Thierry

[sage-devel] Python question or Sage question...

2008-07-20 Thread Thierry Dumont
I have posted some time ago some messages about ldap identification I want to put in Sage... It is not so easy as I could imagine: Sage relies on twisted (and may be on some parts of Zope -am I wrong?- to do this); may be what I want to do is not very complicated but I am lost in twisted,

[sage-devel] Re: CUDA and Sage

2008-07-20 Thread Thierry Dumont
William Stein a écrit : What is CUDA? Why should the typical read of sage-devel or user of Sage care? Any chance you could write a paragraph or two and about this? It might get a lot more Sage developers excited about what you're doing (which is I'm sure extremely exciting). --

[sage-devel] Re: Python question or Sage question...

2008-07-21 Thread Thierry Dumont
ldap:// in ldaps:// and puting self.withTLS=False should work, but I have no mean to verify. If if works everywhere, insertion into Sage will be possible. I'm waiting for comments, suggestions and so on... Yours t.d. -- Thierry Dumont. Institut Camille Jordan -- Mathematiques-- Univ. Lyon I,43 Bd

[sage-devel] Re: CUDA and Sage

2008-07-22 Thread Thierry Dumont
. Yours, t.d. -- Thierry Dumont. Institut Camille Jordan -- Mathematiques-- Univ. Lyon I,43 Bd du 11 Novembre 1918, 69622 - Villeurbanne Cedex - France. [EMAIL PROTECTED] web: http://math.univ-lyon1.fr/~tdumont begin:vcard fn:Thierry Dumont n:Dumont;Thierry org;quoted-printable:CNRS - Universit=C3

[sage-devel] Problem building sage 3.1 on Debian lenny amd 64

2008-08-25 Thread Thierry Dumont
Hi, I try to compile sage on my opteron machine. When compiling flint, I get the ld error message: /usr/bin/ld: cannot find -lstdc++ Th ld lines are: g++ -I/usr/local/sage-3.1/local/include/ -I/usr/local/sage-3.1/local/include -f PIC -funroll-loops -O3 -c NTL-interface.cpp -o NTL-interface.o

[sage-devel] Re: Problem building sage 3.1 on Debian lenny amd 64

2008-08-25 Thread Thierry Dumont
William Stein a écrit : 2008/8/25 Thierry Dumont [EMAIL PROTECTED]: Hi, I try to compile sage on my opteron machine. What compiler version, exact operating sytem, etc.? OS: Debian lenny, amd64 (up to date). gcc version 4.3.1 (Debian 4.3.1-2) t. When compiling flint, I get the ld error

[sage-devel] Compilation on AMD64 Lenny, pb. solved.

2008-08-26 Thread Thierry Dumont
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

[sage-devel] Re: Relationships between exact, approximate linear algebra and multilinear algebras

2008-09-08 Thread Thierry Dumont
Paul Leopardi a écrit : Hi all, I will be attending Sage Days 10 in Nancy, but am very new to Sage and need some pointers on where to find stuff. Also, I have heard about some recent developments in C++ linear algebra libraries and wonder how this relates to Sage. The most recent

[sage-devel] Sage for large scale teaching in my University.

2008-10-29 Thread Thierry Dumont
With some colleagues in our University (Lyon, France) we have built a project around Sage for undergraduate students... And the University has decided to support this project. Good news. We will have enough money to by 3 servers, each one with 32 Mb of memory, 2x4 core (hopefully: the price of

[sage-devel] Re: Sage for large scale teaching in my University.

2008-10-29 Thread Thierry Dumont
mabshoff a écrit : On Oct 29, 7:12 am, Thierry Dumont [EMAIL PROTECTED] wrote: Hi, With some colleagues in our University (Lyon, France) we have built a project around Sage for undergraduate students... And the University has decided to support this project. Good news. Great news

[sage-devel] Re: Sage for large scale teaching in my University.

2008-10-29 Thread Thierry Dumont
mabshoff a écrit : Ok, I saw some notes in that directory about problems, i.e. some things working from the outside, but not the inside of Sage. Can you elaborate? I mean that it works with the ldap library installed in the Linux systeme of the machine; same installation for TLSlib... Is

[sage-devel] Re: Sage for large scale teaching in my University.

2008-10-29 Thread Thierry Dumont
mabshoff a écrit : Ok, so making optional spkgs for OpenLdap as well as TLSlib that install into $SAGE_LOCAL would do the trick? What other components besides pyldap are needed? I think this should be enough. At the above url you also remark: *Bonus: I tested identification with the

[sage-devel] Re: Problem sharing directory

2009-09-30 Thread Thierry Dumont
ma...@mendelu.cz a écrit : On 18 zář, 08:33, Robert Bradshaw rober...@math.washington.edu wrote: Ok, but it should be possible to share the worksheet directory ? I *need* to share it (we have 3 machines, on which the users -some hundredsof students- will be connected at random). I don't

[sage-devel] Re: notebook help needed

2009-10-14 Thread Thierry Dumont
William Stein a écrit : Hi, Nearly two weeks ago I had the notebook stabilized and all known new bugs fixed (after separating it off from sage as a separate program and rewriting the expect stuff). But I realized that it would be a total nightmare to introduce yet another sobj (sage

[sage-devel] Re: notebook help needed

2009-10-14 Thread Thierry Dumont
William Stein a écrit : On Wed, Oct 14, 2009 at 4:55 AM, Thierry Dumont tdum...@math.univ-lyon1.fr wrote: W 2) With the current notebook. I tried the following experience: I have 2 machines (actually 3). On these machines there are unix users sage1, sage2, ..., sage3...,sagen, with the same

[sage-devel] Re: sage notebook servers

2009-10-15 Thread Thierry Dumont
William Stein a écrit : Hi, For a grant proposal, I would like to assemble a list of people running Sage notebook servers either publicly or privately (but more than just for their own person use, of course, e.g. for their group), with maybe some statement about how the notebook server is

[sage-devel] Sgae 4.1.2, installation problem (R).

2009-10-26 Thread Thierry Dumont
The installation of Sage 4.1.2 fails on my system: -system: debian lenny amd 64. -problem: As building R: /usr/local/sage-4.1.2/spkg/build/r-2.9.2/src/bin/exec/R: /usr/local/sage-4.1.2/local/lib/gcc-lib/x86_64-unknown-linux-gnu/4.0.3/libgcc_s.so.1: version `GCC_4.2.0' not found (required by

[sage-devel] Re: numerical integration

2009-10-28 Thread Thierry Dumont
Jason Grout a écrit : ... - algorithm='scipy' -- call the scipy numerical integration routines (maybe make this the default if it is faster than gsl). .. I do not think that this is the only criterion... How do these methods compare from the numerical point of view? Making a

[sage-devel] Re: numerical integration

2009-10-28 Thread Thierry Dumont
Jason Grout a écrit : Thierry Dumont wrote: Jason Grout a écrit : ... - algorithm='scipy' -- call the scipy numerical integration routines (maybe make this the default if it is faster than gsl). .. I do not think that this is the only criterion... How do these methods compare

[sage-devel] Re: numerical integration

2009-10-28 Thread Thierry Dumont
I have looked at the quadrature routines: -in gsl: it seems that qags routine is called: this is a sophisticated procedure with step adaptation, and convergence acceleration with the epsilon-algorithm. This should integrate some singular functions and discontinuous functions. -in scipy: things

[sage-devel] sage-4.2, solved problems and 3 questions (for Ldap)

2009-10-29 Thread Thierry Dumont
Hi, I have installed sage-4.2 and many problems disappeared :-) ( server_pool is working fine now...). BUT I have some questions: === -I want to adapt my ldap identification to the new notebook. As the notebook changed a lot, I must adapt my routines to it. To do this I want to trace different

[sage-devel] Problem when generating keys with certtool .

2009-11-02 Thread Thierry Dumont
Hi, With sage-4.1 , sagenb-0.4 on a debian amd 64 Lenny, I cannot make certtool generate certificates. Sage launches certtool with arguments: --generate-privkey --outfile /scratch/sage/.sage/dsage/cacert.pem (/scratch/sage is the home directory) and this command never finishes. I try bin

[sage-devel] Re: Problem when generating keys with certtool .

2009-11-02 Thread Thierry Dumont
I apologize for this post... it took a *very* long time... but at the end, after some *minutes* I got a certificate... t.d. Thierry Dumont a écrit : Hi, With sage-4.1 , sagenb-0.4 on a debian amd 64 Lenny, I cannot make certtool generate certificates. Sage launches certtool with arguments

[sage-devel] Sage server: statistics ?

2009-11-05 Thread Thierry Dumont
Hi, My Sage server University wide is now running... Yesterday, we had about 120 simultaneous connections (but for the students it was the first contact with Sage and with python: so, it is certainly not a very representative test). My question: Can we make statistics on the use of a Sage

[sage-devel] Re: notebook help needed

2009-11-08 Thread Thierry Dumont
William Stein a écrit : I'm not sure why, but the storage abstraction broke my multiple boxes acting as compute nodes via NFS and server_pool. If I run the notebook with a localhost login server_pool=['sa...@localhost'], then it works. If I don't, server_pool=['sa...@node1'], then it appears

Re: [sage-devel] SeLinux alert

2009-11-20 Thread Thierry Dumont
achrzesz a écrit : Hello Can I ignore the SeLinux alert which I obtain from time to time starting sage 4.2.1 compiled from sources in Fedora 12 on QuadCore 2.4GHz, 4GB RAM I do not have an answer to your question. But do you plan to use SELinux for securing Sage? (a Sage server ?). This

Re: [sage-devel] sage and nfs

2009-11-26 Thread Thierry Dumont
Here we use NFS and Sage: we have 3 computers. The first one receives all the users'directories in a directory /ws. /ws is exported to the 2nd and 3rd computer and we have no performance problems. But ok, this is not the same configuration as yours where you have a lot of computers and only one

Re: [sage-devel] about sagenb-xx.spkg and translations

2010-01-03 Thread Thierry Dumont
Vincent D a écrit : Hi, I aim to construct a french translation of the notebook (with french tutorial) on http://sage.irem.univ-mrs.fr:8000 Is there any attempt of multi-language support for it ? It seems that the files concerning the notebook lives in the independant package

[sage-devel] Sage server for many students...

2009-02-23 Thread Thierry Dumont
are located in .sage/sage_notebook/worksheets/ I would like to put them on an nfs share (mounted on all the 3 machines). What do you think of that? Is there any incompatibility ? Yours, Very sincerely Thierry Dumont. - French universities are on a permanent strike! Have a look

[sage-devel] Re: Sage server for many students...

2009-02-23 Thread Thierry Dumont
mabshoff a écrit : In general there are a bunch of suggestions like setting timeouts for the python processes and so on to avoid overloading the server. Do you have any more info about the setup, i.e. how long do you need to go between upgrades (say some people cannot or do not want to

Re: [sage-devel] Re: atlas question

2010-04-18 Thread Thierry Dumont
It is certainly possible to copy atlas libs from one machine to another (and it is what you do when you install sage binaries, or when you install atlas in a linux distribution (debian, ubuntu with binary packages), and this will change nothing if both machines have the same processor. But it

[sage-devel] Installation of lie-2.2.2.p3 fails.

2010-05-06 Thread Thierry Dumont
Hello, Using 4.4.1, up to date, the installation of lie fails: sage -i lie-2.2.2.p3 ... gcc -o Lie.exe lexer.o parser.o non-ANSI.o bigint.o binmat.o creatop.o gettype.o getvalue.o init.o learn.o main.o mem.o node.o onoff.o output.o poly.o sym.o print.o getl.o date.o static/*.o box/*.o

Re: [sage-devel] Installation of lie-2.2.2.p3 fails.

2010-05-06 Thread Thierry Dumont
Le 06/05/2010 20:21, William Stein a écrit : On Thursday, May 6, 2010, Thierry Dumonttdum...@math.univ-lyon1.fr wrote: Hello, Using 4.4.1, up to date, the installation of lie fails: sage -i lie-2.2.2.p3 ... gcc -o Lie.exe lexer.o parser.o non-ANSI.o bigint.o binmat.o creatop.o gettype.o

Re: [sage-devel] new talk: The Development of Symbolic Calculus in Sage

2010-07-17 Thread Thierry Dumont
have the best for stiff systems, Hamiltonian systems (make celestial mechanics with Sage) and so on... This would be in the spirit of Sage, I think: use the best software available, written by true specialists. But may be there are already projects (for point 2)) ? let me know... Thierry Dumont

Re: [sage-devel] Re: new talk: The Development of Symbolic Calculus in Sage

2010-07-17 Thread Thierry Dumont
Le 17/07/2010 15:18, Harald Schilly a écrit : On Jul 17, 11:03 am, Thierry Dumonttdum...@math.univ-lyon1.fr wrote: 2) For the ODEs, ... (even if written in f77)... I don't know their work but I think there is nothing wrong with f77 for this type of problem. Do you know f2py [1]? Shouldn't

[sage-devel] Cython and callbacks. State of the art ?

2010-07-24 Thread Thierry Dumont
Hello, I am not sur to understand if cython can manage callbacks. The documentation do not say many things about this (or I could not find it). I want to interface ODEs solvers, and I would like to do it with cython. o, if I want to solve du/dt=f(t,u), I need to pass f to the solver

[sage-devel] Femhub

2011-07-21 Thread Thierry Dumont
Hello, I juts read that Femhub (http://code.google.com/p/femhub/ and many other urls) uses parts of Sage. But is there any project to integrate it in the Sage distribution (as optional package, for example) ? This would be interesting for teaching... Yours t.d. -- To post to this group,

[sage-devel] my ldap identification.

2011-07-22 Thread Thierry Dumont
I have a Sage server since 2 years; I am switching to 4.4 and sagenb-0.8.14. I must patch the notebook to make ldap identification. I tried to reproduce exactly what I did one year ago with sage 4-5.2 and sagenb-0.8.2. The idea is to add a script notebook_ldap.py which do the job, and pach

Re: [sage-devel] my ldap identification.

2011-07-22 Thread Thierry Dumont
. Yours t. Le 22/07/2011 09:26, Thierry Dumont a écrit : I have a Sage server since 2 years; I am switching to 4.4 and sagenb-0.8.14. I must patch the notebook to make ldap identification. -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group

Re: [sage-devel] Femhub

2011-07-23 Thread Thierry Dumont
Le 22/07/2011 23:35, Ondřej Čertík a écrit : Hi Thierry, http://qsnake.com/ And I'll be happy to integrate things back to Sage. I didn't announce the Qsnake project publicly yet, because I am not happy with the web pages yet, but I am currently busy finishing some work, and I'll get to it

Re: [sage-devel] importing matlab files (.mat) into sage?

2011-11-02 Thread Thierry Dumont
Le 02/11/2011 11:02, Stan Schymanski a écrit : Dear all, While looking for a way to import a matlab file into sage, I stumbled over scipy.io.loadmat and found a ticket where this is implemented into sage along with some other useful input/output routines:

Re: [sage-devel] talk on Sage that I gave today

2011-11-19 Thread Thierry Dumont
Le 20/11/2011 08:48, William Stein a écrit : Hi, I gave a general audience talk today at the Combinatorial Potlatch here at Seattle University. My slides, the worksheet, and a clear recording of the audio of the talk are here, in case you're interested:

[sage-devel] Question about the Notebook in the future Sage 5.0

2012-01-04 Thread Thierry Dumont
Dear Sage developers, Some time ago, I could read that there was a project to store all user data in a data base, which could be independent of the computer on which Sage is running. Will this feature be included in 5.0? I am currently running Sage on a server made of 3 independent machines,

Re: [sage-devel] Question about the Notebook in the future Sage 5.0

2012-01-04 Thread Thierry Dumont
Le 04/01/2012 10:41, Jeroen Demeyer a écrit : On 2012-01-04 10:37, Thierry Dumont wrote: I am currently running Sage on a server made of 3 independent machines, shared among the students of my University. You mean 3 different hardwares located in various parts of the network or more like 3

Re: [sage-devel] Question about the Notebook in the future Sage 5.0

2012-01-04 Thread Thierry Dumont
Le 04/01/2012 11:12, Jeroen Demeyer a écrit : On 2012-01-04 10:43, Thierry Dumont wrote: 3 machines in the same network (linked with ethernet 1gb), sharing sage datas (user data) by nfs. In that case, you can simply solve your problem using the notebook() server_pool option. No need

Re: [sage-devel] blitz++ (matrix template library) as optional package

2012-02-10 Thread Thierry Dumont
Le 10/02/2012 10:00, Volker Braun a écrit : I recently note that there is no C++ array template library shipped with Sage. I think this is an impediment for more serious numerical computations. The whole Cython thing is really nice to speed up Python code, but if you are serious about avoiding

[sage-devel] sage 5 beta 13 on Ubuntu 12.04: ok.

2012-04-29 Thread Thierry Dumont
Compilation from scratch + install Lie went well on the last Ubuntu, X86-64, server version. yours t.d. -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this

[sage-devel] User identification, did something change ?

2010-10-11 Thread Thierry Dumont
Hello, I am changing my server (used by hundreds of students...). It was base on a old version of Sage, and I am switching to 4-5.2. In my old version, I installed a patch to avatars.py so that Sage looks at the ldap server of the university, and creates the user if necessary. Is Sage

Re: Fwd: Re: [sage-devel] User identification, did something change ?

2010-10-16 Thread Thierry Dumont
Nice, this worked perfectly.. Thanks. t. Le 16/10/2010 08:01, Thierry Dumont a écrit : Message original Sujet: Re: [sage-devel] User identification, did something change ? Date : Mon, 11 Oct 2010 11:12:50 -0700 De : Mike Hansen mhan...@gmail.com Répondre à : sage-devel

[sage-devel] Strange behaviour of floating point numbers.

2010-10-17 Thread Thierry Dumont
Consider this: sage: R100=RealField(100) sage: x= R100(8/3) sage: R=RealField() sage: R(x) 2.67 sage: RDF(x) 2.667 The documentation says that in RealField() and RDF, numbers are represented with the same precision of 53 bits. So, R(x) and RDF(x) should give the same

[sage-devel] CouchDB

2010-10-30 Thread Thierry Dumont
I am reading an interesting paper (at least interesting for me) about CouchDB. I do not know many things about databases, but I remember that there where some ideas about using a data base for the storages of the notebook. At first look, I would say that these sorts of databases (not sql) seem

Re: [sage-devel] Re: Fwd: Request to review Sagemath Beginners Guide

2010-10-30 Thread Thierry Dumont
Le 30/10/2010 12:39, Rob Beezer a écrit : There's already a nice CC-licensed book about Sage written in French: http://sagebook.gforge.inria.fr/ Are there any plans to make a print version and/or translations? I have translated the French Sage book into Sage worksheets. This was

Re: [sage-devel] Re: Fwd: Request to review Sagemath Beginners Guide

2010-10-30 Thread Thierry Dumont
Le 30/10/2010 16:21, mhampton a écrit : Rob, It would be great to have an English version of that book, I agree that its very good. I would be willing to pitch in a bit to a team translation effort. My French is not good but I think I could slog through part of it - other people in my family

[sage-devel] Log the connections.

2010-11-07 Thread Thierry Dumont
I have a Sage server used by the students in my University. I would like to know how many connections are active at each time. How to do this? Yours t.d. -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to

[sage-devel] Goto Blas.

2010-12-06 Thread Thierry Dumont
The Goto Blas are now under BSD license. http://www.tacc.utexas.edu/tacc-projects/gotoblas2/ This could be a replacement for Atlas (these blas are supposed to be faster). t.d. -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an

Re: [sage-devel] Re: Goto Blas.

2010-12-07 Thread Thierry Dumont
Le 07/12/2010 14:22, Jason Grout a écrit : On 12/7/10 12:05 AM, Thierry Dumont wrote: The Goto Blas are now under BSD license. http://www.tacc.utexas.edu/tacc-projects/gotoblas2/ This could be a replacement for Atlas (these blas are supposed to be faster). According to the developer's

[sage-devel] new numerical developments in Sage ?

2010-12-28 Thread Thierry Dumont
Hi, With some other French Colleagues, we organize a mini-symposium about Sage at the Congress of the French Mathematical Society in May (see http://smai.emath.fr/smai2011/). There will be some short talks (30 mn) about Sage in different domains of Applied Maths, even in Industrial fields. I

Re: [sage-devel] Re: DAE solver on Sage.

2011-05-04 Thread Thierry Dumont
Le 04/05/2011 06:48, Joris Vankerschaver a écrit : On 3 mei, 15:13, Guilhermeguito...@gmail.com wrote: Is there any DAE solver readily available to Sage? The tools available in Sage for solving ODE are obsolete; I would like to interface the tools of the books of Hairer Wanner which

Re: [sage-devel] Re: DAE solver on Sage.

2011-05-04 Thread Thierry Dumont
Le 04/05/2011 19:01, Joris Vankerschaver a écrit : On May 3, 11:23 pm, Thierry Dumonttdum...@math.univ-lyon1.fr wrote: 1) it takes time to do this, 2) we have to solve the callback problem: such program make a lot of callbacks (to the rhs of the system): AFAIK, there are no simple method to

Re: [sage-devel] ODE/DAE solver on Sage, spkg for SUNDIALS and Assimulo

2011-05-13 Thread Thierry Dumont
Hello, Asimulo seems great: it does exactly what I wanted to do: integrate Radau5 in Sage. Radau5 is from far the best method for the integration of (very) stiff ODEs... Le 13/05/2011 10:30, Guilherme a écrit : Dear all, I did two simple spkg (Sage package) one for SUNDIALS and another for

Re: [sage-devel] Re: No plot with plot3d

2011-05-21 Thread Thierry Dumont
Le 21/05/2011 16:36, Jonathan a écrit : OK, I found an Ubuntu VM (11.04) that I hadn't killed. With the patch for launching Jmol from the command line and the Sun Java it definitely works. If you want 4.6.2 to work apply the patch. If that doesn't fix it you will also have to switch from the

Re: [sage-devel] Re: new optional (or experimental) package CSDP?

2013-04-29 Thread Thierry Dumont
Le 29/04/2013 19:23, kcrisman a écrit : On Wednesday, April 10, 2013 11:52:30 PM UTC-4, Dima Pasechnik wrote: Dear all, we'd like to add CSDP, (a fast semidefinite programming solver, one of the very best around), as an optional package. https://projects.coin-or.org/Csdp/

Re: [sage-devel] LELA for matrices?

2013-06-02 Thread Thierry Dumont
Le 02/06/2013 19:28, Volker Braun a écrit : On Sunday, June 2, 2013 9:01:01 AM UTC+1, Charles Bouillaguet wrote: There is a presumably standard sparse-blas API : http://math.nist.gov/spblas/ Yes, though it doesn't seem to mandate any matrix storage format. So apparently you can't let

[sage-devel] ppa mirror ?

2013-06-22 Thread Thierry Dumont
Hello, Is there only one ppa server for Ubuntu ? If YES, may be it would be reasonable to make mirrors: in my lab, I install sage on all the machines using the ppa: it means 5 interactive servers (we use ltsp for every day computer access) + a cluster of 12 machines + Maybe the tube

Re: [sage-devel] Re: UTF-8 and old terminals (new startup banner)

2013-07-08 Thread Thierry Dumont
Le 08/07/2013 10:51, Nils Bruin a écrit : On Monday, July 8, 2013 4:05:29 AM UTC+2, Volker Braun wrote: Frédéric Chapoton has written a patch at http://trac.sagemath.org/14733 http://trac.sagemath.org/14733 that will beautify the Sage startup banner using some UTF-8 characters to

Re: [sage-devel] math software and China

2014-01-22 Thread Thierry Dumont
May be software piracy is not the problem (or there are other problems). Consider for example scilab, which is a free replacement for Matlab (at least partially): it has a huge success in China, even if it is very easy to get non official versions of matlab for only some Yuans. But Scilab is

[sage-devel] Benchmarks

2014-02-02 Thread Thierry Dumont
Hello, I was looking at the benchmarks in http://www.sagemath.org/tour-benchmarks.html All are very obsolete (sage 4.1.1, linux 32 bits, a core I5 processor). Redoing the sage examples results in an improvement factor of 4 at least (but not a constant factor). But I do not have access

Re: [sage-devel] question to numetçric guys: TIDES

2012-06-18 Thread Thierry Dumont
Le 17/06/2012 23:14, mmarco a écrit : There is a software developped in my university called TIDES[1]. It is an arbitrary precission ODE integrator. The guys that made it claim that it is the software that allows bigger precission in this task. I know almost anything about numerical integration

[sage-devel] 5.2, notebook, ldap.

2012-08-29 Thread Thierry Dumont
Since some years, I manage a Sage server in my University; this server is used by students and I have implemented a simple ldap identification. With Sage versions 5.2, I always did the following: -install python ldap in sage -download the notebook spkg. -In this notebook package, there was a

Re: [sage-devel] Re: Ubuntu 12.10 - 404 Not found

2012-11-12 Thread Thierry Dumont
Le 12/11/2012 15:42, Jan Groenewald a écrit : Dear Silliwane, The Sage PPA has not yet been updated for 12.10. It currently only has 12.04 support. I hope to work on this soon, but that might mean early next year; I am not sure yet. In the meantime, try this: sudo sed -ie 's/quantal/precise/g'

Re: [sage-devel] Re: Ubuntu 12.10 - 404 Not found

2012-11-17 Thread Thierry Dumont
Le 17/11/2012 08:55, Jan Groenewald a écrit : Hi The PPA can now be used to install on Ubuntu 12.10. Yes, This is ok! Thanks! t.d. Sulliwane, you can revert your 12.10 system back to the way it should be with this command (all on one line): sudo sed -ie 's/precise/quantal/g'

Re: [sage-devel] Re: Sage Days in Bobo-Dioulasso debriefing; Sage in developping countries

2012-11-20 Thread Thierry Dumont
For information, I will give a short course (one day) about Sage in Algeria next January. There is a joint French-Maghreb CNRS research unit in Maths; the idea is to help develop computing, all sorts of computing in Maghreb. The Algerian (the others too) are very enthusiastic. As the

[sage-devel] Tour-Benchmark.

2012-12-30 Thread Thierry Dumont
Dear Colleagues, I just want to point out that at least one of the results of the Tour-Benchmark should be modified/updated: the Matrix Multiplication in Sage vs. MATLAB and Mathematica. On my personal, quite old, with a Celeron 3Ghz, 2 core machine, 64 bits, I get: 752 ms which is very

Re: [sage-devel] Re: Graph neighbours - room for huge performance boost

2013-01-02 Thread Thierry Dumont
Le 02/01/2013 09:22, Nathann Cohen a écrit : Hellooo !!! You are totally right about the performance issue, but do you know the memory size of a Sage graph compared to dict of dict ? I have no idea -- I have just been *VERY* scared by the size of a dict of dict compared to a C array in

Re: [sage-devel] Re: Graph neighbours - room for huge performance boost

2013-01-02 Thread Thierry Dumont
Le 02/01/2013 13:54, Nathann Cohen a écrit : I suppose that for many graph algorithms the graph can well stay immutable, and this does not really need a dictionary (perhaps at a slight cost of efficiency of determining whether two vertices are adjacent). And many algorithms actually do not need

Re: [sage-devel] Re: Graph neighbours - room for huge performance boost

2013-01-02 Thread Thierry Dumont
Le 02/01/2013 18:22, Nils Bruin a écrit : On Jan 2, 5:29 am, Thierry Dumont tdum...@math.univ-lyon1.fr wrote: The problem is that Python dictionaries are *very* slow. Do you know how they are implemented? That's an interesting observation. I think python developers have put a lot of time

Re: [sage-devel] Re: Stampede Cluster with Intel's Many Integrated Core (MIC) coprocessors

2013-01-05 Thread Thierry Dumont
Le 05/01/2013 16:23, Volker Braun a écrit : Fundamentally, the Xeon Phi programming model is not really that much different from OpenCL/Cuda. You send data to the coprocessor card, run some code there, and pull back the result to the host CPU. It doesn't speed up anything that is not

Re: [sage-devel] translations of a paragraph into German and French needed in #13657

2013-01-23 Thread Thierry Dumont
Dima, I can make the translation into French. == Pour calculer les valeurs propres et les vecteurs propres d'une matrice à coefficients flottants réels ou complexes, la matrice doit être définie respectivement sur RDF (Real Double Field) ou CDF (Complex Double Field). Si aucun

Re: [sage-devel] translations of a paragraph into German and French needed in #13657

2013-01-24 Thread Thierry Dumont
Le 24/01/2013 10:04, Julien Puydt a écrit : Le 24/01/2013 09:35, Francois Bissey a écrit : On 24/01/13 19:58, Thierry Dumont wrote: Dima, I can make the translation into French. == Pour calculer les valeurs propres et les vecteurs propres d'une matrice à coefficients flottants

Re: [sage-devel] Re: Simulation in Sage

2013-02-11 Thread Thierry Dumont
Le 11/02/2013 22:57, William Stein a écrit : On Mon, Feb 11, 2013 at 10:38 AM, Christian Kuper christian.ku...@t-online.de wrote: Hello Harald, thanks for your quick reply Honestly personal answer: no. But I'm happy to be proven wrong :-) I would be greatly interested in your opinion why

Re: [sage-devel] Re: Simulation in Sage

2013-02-12 Thread Thierry Dumont
Le 12/02/2013 11:55, Volker Braun a écrit : +1 for having a FEM implementation. I've seen some of the codes in numerical GR (Cactus) and they are definitely not generic FEM implementations that one could apply to a wide range of problems ;-) On Tuesday, February 12, 2013 7:12:42 AM UTC,

[sage-devel] Shibboleth and Sage ?

2013-02-16 Thread Thierry Dumont
Dear Colleagues, I am wondering if a Sage interface to Shibboleth (http://en.wikipedia.org/wiki/Shibboleth_%28Internet2%29) would be inresting / difficult to build. In France, Shibboleth is popular in academic institutions and it would be interesting to allow a Sage server to work with it.

Re: [sage-devel] Re: Shibboleth and Sage ?

2013-02-18 Thread Thierry Dumont
Le 18/02/2013 17:06, Harald Schilly a écrit : On Saturday, February 16, 2013 11:00:05 AM UTC+1, tdumont wrote: Shibboleth ... I've implemented it once for a custom internal application. Getting it running itself is rather easy, because there is an Apache module + service available

[sage-devel] sound in Sage..

2013-03-20 Thread Thierry Dumont
Hi, May be this can look a bit crazy: is somebody interested by introducing sound output in Sage (and other sound tools?). Actually I don't know how to do this, but there are lot of Python tools. I would like to make a course on the FFT with an application to mp3 encoding: build a small mp3

Re: [sage-devel] sound in Sage..

2013-03-20 Thread Thierry Dumont
There is this also: http://nsound.sourceforge.net/users_guide/index.html and many other packages Ok, I'll work on this. t. -- You received this message because you are subscribed to the Google Groups sage-devel group. To unsubscribe from this group and stop receiving emails from it, send

[sage-devel] Incorrect random link.

2014-06-17 Thread Thierry Dumont
Hello, The random link on the web page, when pointing to SageTex, is incorrect Random Link: SageTeX - embedding Sage code inside LaTeX documents. (It is pointing to a non existing url in CTAN). Yours t.d. -- You received this message because you are subscribed to the Google Groups

Re: [sage-devel] Interested in co-writing an article?

2014-10-10 Thread Thierry Dumont
I am very interested by what you have developped. It looks a bit like what I am doing. I 'll contact you directly. yours t. Le 11/10/2014 03:26, Alasdair a écrit : I've written an article about using Sage to develop explicit Runge-Kutta formulas for the numerical solution of ODEs. I've sent

Re: [sage-devel] Re: Interested in co-writing an article?

2014-10-12 Thread Thierry Dumont
Le 12/10/2014 06:12, rjf a écrit : On Friday, October 10, 2014 6:26:24 PM UTC-7, Alasdair wrote: I've written an article about using Sage to develop explicit Runge-Kutta formulas for the numerical solution of ODEs. Since the use of a computer algebra system to develop explicit R-K

Re: [sage-devel] Re: ipython notebook

2014-11-02 Thread Thierry Dumont
Le 23/10/2014 10:40, Volker Braun a écrit : Did you run make after pulling the git branch? The zeromq and pyzmq packages are new and need to be compiled. On Thursday, October 23, 2014 7:57:46 AM UTC+1, Jori Mantysalo wrote: On Wed, 22 Oct 2014, Volker Braun wrote: Its in 6.4.beta6.

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