[sage-devel] Re: Vote for TinyMCE spkg
Hi John, I installed "It's all text" a while ago, but I have not found a way of linking it to a WYSIWYG editor. TinyMCE is an office-like WYSIWYG editor, so it seems totally different to "It's all text". Just go to their web page and try it out: http://tinymce.moxiecode.com/examples/full.php# I think it is pretty cool, but I haven't tried it out in a notebook, so perhaps we could include it as an optional package first for testing? +1 (optional or standard) Stan John Cremona wrote: > Firefox has an extension which does exactly this (to any text form > cell on any web page) called "It's all text", which I use > occasionally. That means that for firefox users your new package is > -- I think -- redundant. > > For example, in replying to this in gmail I could have clicked > something to make an emacs window pop up to compose my reply in. That > is sometimetimes useful -- though not for simple things like this > message! > > john > > --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Vote for TinyMCE spkg
I made good experiences with TinyMCE in two projects. So a +1 Michael --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Vote for TinyMCE spkg
I certainly have no objections -- I had not appreciated the WYSYWIG aspect, since I hardly use such things. John 2008/10/14 Stan Schymanski <[EMAIL PROTECTED]>: > > Hi John, > > I installed "It's all text" a while ago, but I have not found a way of > linking it to a WYSIWYG editor. TinyMCE is an office-like WYSIWYG > editor, so it seems totally different to "It's all text". Just go to > their web page and try it out: > http://tinymce.moxiecode.com/examples/full.php# > > I think it is pretty cool, but I haven't tried it out in a notebook, so > perhaps we could include it as an optional package first for testing? > > +1 (optional or standard) > > Stan > > John Cremona wrote: >> Firefox has an extension which does exactly this (to any text form >> cell on any web page) called "It's all text", which I use >> occasionally. That means that for firefox users your new package is >> -- I think -- redundant. >> >> For example, in replying to this in gmail I could have clicked >> something to make an emacs window pop up to compose my reply in. That >> is sometimetimes useful -- though not for simple things like this >> message! >> >> john >> >> > > > > > --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Vote for TinyMCE spkg
Recently I've been working on WYSIWYG editing for the text cells of Sage. I've made an spkg for the TinyMCE javascript editor. The idea is that you can double-click on any text cell and, in-place, a TinyMCE editor pops up that lets you edit HTML code in a familiar word-processor sort of environment. I think this will make editing text in a worksheet *much* easier and more accessible. Website: http://tinymce.moxiecode.com/ License: LGPL Demo of TinyMCE: This javascript editor is very actively developed. TinyMCE has a nice plugin architecture and includes capabilities such as a WYSIWYG table editor, the standard formatting commands, a special paste-from-word feature that does a decent job of letting you paste directly from a word document into the html cell, etc. It is very cross-platform and cross-browser (see http://wiki.moxiecode.com/index.php/TinyMCE:Compatibility). The main competitor to TinyMCE is FCKEdit, and from what I've seen and researched, TinyMCE generates cleaner HTML code. TinyMCE is the standard editor bundled with Wordpress (popular blogging software), and a list of CMS systems which either have a TinyMCE plugin or include it in the software are listed at http://wiki.moxiecode.com/index.php/TinyMCE:CMS_systems. Another person's review of javascript editors is here: http://www.garretwilson.com/blog/2008/07/27/javascriptxhtmleditors.xhtml, which concludes that there is no perfect, or really even really good, javascript editor, but TinyMCE is the best available. I've made an spkg for TinyMCE and relevant patches to enable its functionality at http://trac.sagemath.org/sage_trac/ticket/4255. Please read the instructions on the ticket to try this out; creating text cells is still not completely obvious. I am working on making creating text cells easier soon. The patch makes it so that Sage checks to see if TinyMCE is installed before enabling the features, so it's not necessary that TinyMCE be a standard spkg, though I hope that it someday will be. The downside to using TinyMCE is that it adds another 150k or so to the javascript downloads (using the plugins that I enabled in it). However, usually this is cached by the browser, so it is a one-time cost. If we ever figure out how to turn on the automatic gzip compression on twisted connections, this downside will be dramatically reduced. Even with the extra 150k, though, I feel that the usability benefits far outweigh the costs. So, do you vote [ ] Yes, include TinyMCE as a standard package [ ] Yes, include TinyMCE as an optional package [ ] No, do not include TinyMCE as a package I personally think that the most prudent choice now is to include it as an optional package, merge the patch at #4255, and let a few people try it out. I hope to have easy text-cell creation done "real soon now", which would enable people to just shift-click on the "add-new-cell" line and get a new text cell with a TinyMCE edit box if it's installed. I would hope then that we could include TinyMCE in as a standard package. I think this would make sage notebooks much friendlier to people wanting to annotate the mathematics with prose and explanation. Thanks, Jason --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Vote for TinyMCE spkg
Hi Martin, I think that most of the developers would agree with you, but bear in mind that a large number of potential users come from the WYSIWYG icon clicking world. These are often the same people that get discouraged by the need of having to install optional packages, so I wonder if there is a way of including something as standard but providing a way of deselecting it for advanced users? Something like the standard version with bells and whistles for the newbie and a customised version for the wiz. I have the feeling that TinyMCE could make the notebook more attractive to users that are not familiar with writing code. They could ease into coding slowly. Since the generated html code still appears in the notebook, this would be a nice way of learning html, too. Eventually, the user is likely to need it less and less and do his own html coding, at which point he could deselect the package again. Stan Martin Albrecht wrote: > I don't want to vote against it just know but I don't really get the need for > a WYSIWYG editor in the notebook. I am very much in favor of easy text cell > creation (using say ReST) but a WYSIWYG editor seems bloated to me. > > Cheers, > Martin > > > --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Sage public notebook servers
> A security researcher decided to purposely take down sage.math to > demonstrate that it is possible to fork bomb the machine through the > public sage notebook servers. I had always plan to run these comletley > public servers until something like this happened. Therefore, > sagenb.org (and the other public sage notebook servers I host) will be > completely disable until further notice. Tell him where to put his next fork bomb for me. --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: [sage-support] Re: [sage-devel] Re: Sage public notebook servers
On Tue, Oct 14, 2008 at 1:06 AM, Serge Salamanka <[EMAIL PROTECTED]> wrote: > > I have experience with Xen. > Can set up a virtual machine for Sage. > It's not that difficult anyway. What do you need to do this? How secure are they? By the way, I'm currently copied all the data from sagenb.org and the other servers to http://sage.math.washington.edu/home/was/sagenb/ so people can recover any worksheets they have. William >> William Stein Associate Professor of Mathematics University of Washington http://wstein.org --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Vote for TinyMCE spkg
On Tue, Oct 14, 2008 at 5:06 AM, mhampton <[EMAIL PROTECTED]> wrote: > > +1 for inclusion. I think this is worth it, for the reasons given > below by Jason. It is almost orthogonal in use to the "Its all text" > plugin, which works great for me on WIndows but irritates me on macs > for some reason (I uninstalled it, and now I can't remember exactly > why). > > Using Sage for computer labs, I need students to be able to edit a > worksheet easily to write up their answers, and I think this will help > quite a bit. It might actually make it easier for them to do a good > lab writeup than it is in Mathematica (which has some powerful text > editing capabilities but I don't think they are easy to use). [x] yes, include standard I think this proposed editor fits very squarely into the mission statement of Sage, which is "provide a viable alternative to Mathematica, etc." Does tinyMCE have any sort of equation plugin? Have you thought about that at all? William -- William Stein Associate Professor of Mathematics University of Washington http://wstein.org --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Vote for TinyMCE spkg
On Tue, Oct 14, 2008 at 7:35 AM, Jason Grout <[EMAIL PROTECTED]> wrote: > > William Stein wrote: >> On Tue, Oct 14, 2008 at 5:06 AM, mhampton <[EMAIL PROTECTED]> wrote: >>> +1 for inclusion. I think this is worth it, for the reasons given >>> below by Jason. It is almost orthogonal in use to the "Its all text" >>> plugin, which works great for me on WIndows but irritates me on macs >>> for some reason (I uninstalled it, and now I can't remember exactly >>> why). >>> >>> Using Sage for computer labs, I need students to be able to edit a >>> worksheet easily to write up their answers, and I think this will help >>> quite a bit. It might actually make it easier for them to do a good >>> lab writeup than it is in Mathematica (which has some powerful text >>> editing capabilities but I don't think they are easy to use). >> >> [x] yes, include standard >> >> I think this proposed editor fits very squarely into the mission >> statement of Sage, which is "provide a viable alternative to >> Mathematica, etc." >> >> Does tinyMCE have any sort of equation plugin? Have you thought >> about that at all? >> > > No, and no. I haven't thought about it because doing mathematics like > $x^2$ or $$x^2$$ still invokes jsmath, so we still have access to nice > mathematics typesetting. > > It looks like there have been inquiries for such: > > http://tinymce.moxiecode.com/punbb/viewtopic.php?id=3790 > > I still think that Davide Cervone's javascript equation editor is the > best, by far (see > http://www.math.union.edu/~dpvc/talks/2006-12-08.IMA/editor.html or the > sage-devel discussion about halfway down here: > http://groups.google.com/group/sage-devel/browse_thread/thread/e23cde79a12fd0aa/65e8aac196f4fe8c) I really like that editor. It looks gorgeous, and you can type directly in latex if you want. Well, my questions was just inspired by the remark about students typing up their student projects using Sage. > > If we could (optionally) trigger Davide's equation editor when a person > typed a dollar sign, I think that would be perfect for an equation editor. > > Jason > > > > > -- William Stein Associate Professor of Mathematics University of Washington http://wstein.org --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Vote for TinyMCE spkg
Stan Schymanski wrote: > William Stein wrote: >> Does tinyMCE have any sort of equation plugin? Have you thought >> about that at all? >> >> > Could we put the html code provided by tinyMCE into an input cell and > preparse > > %hide > %html > > or > > %hideall > %html > > Then, we could just write e.g. $E=m*c^2$ in the tinyMCE editor and it > would be converted into an equation by Sage. Admittedly, this would not > be WYSIWYG any more... See my other post responding to this. Basically, enclosing mathematics in dollar signs still works automatically. It's technically not wysiwyg, but it's as close as we'll get right now without an equation editor. So, there's no need to put things into an input cell. Jason --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: sagemath.org website update #5
On Oct 12, 2008, at 2:45 PM, Harald Schilly wrote: > > Hello all, here is a short update about the sagemath.org website. > > First, when i started to monitor the access, the usual number of > visits per day was 800-1000. It still varies, but you can think of > 2000 visits per day now. Mainly due to more exposure and blogs, more > teaching of sage and much more -- except, there is also monitoring on > trac and wiki now, but since a visit only counts for one session and > not for page views, this does not account for such many visits. > > An important event happend in the last week, a slight slashdotting, > because sage was mentioned in the comments of this article: > http://books.slashdot.org/books/08/10/01/1329243.shtml > this brought about 1300 visits. Oct 1st was also a new record high > with 3024 visits, first time above 3000! > > Two interesting referring pages popped up. There are two courses > teaching Sage in Austria: > http://www.risc.uni-linz.ac.at/education/courses/ws2008/mathematik1/ > (Linz, Upper Austria) > http://www.math.tugraz.at/~huss/computermathematik08/ (Graz, Styria) > e.g. look at http://www.math.tugraz.at/~huss/computermathematik08/ > dateien/sage_tutorium_1.html > > If anybody knows about other courses or has links to past lectures, > please tell me. I think it could be very useful to collect them just > like collecting publications referencing Sage. Just out of curiosity, are you still keeping download stats? - Robert --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Vote for TinyMCE spkg
William Stein wrote: > On Tue, Oct 14, 2008 at 5:06 AM, mhampton <[EMAIL PROTECTED]> wrote: >> +1 for inclusion. I think this is worth it, for the reasons given >> below by Jason. It is almost orthogonal in use to the "Its all text" >> plugin, which works great for me on WIndows but irritates me on macs >> for some reason (I uninstalled it, and now I can't remember exactly >> why). >> >> Using Sage for computer labs, I need students to be able to edit a >> worksheet easily to write up their answers, and I think this will help >> quite a bit. It might actually make it easier for them to do a good >> lab writeup than it is in Mathematica (which has some powerful text >> editing capabilities but I don't think they are easy to use). > > [x] yes, include standard > > I think this proposed editor fits very squarely into the mission > statement of Sage, which is "provide a viable alternative to > Mathematica, etc." > > Does tinyMCE have any sort of equation plugin? Have you thought > about that at all? > No, and no. I haven't thought about it because doing mathematics like $x^2$ or $$x^2$$ still invokes jsmath, so we still have access to nice mathematics typesetting. It looks like there have been inquiries for such: http://tinymce.moxiecode.com/punbb/viewtopic.php?id=3790 I still think that Davide Cervone's javascript equation editor is the best, by far (see http://www.math.union.edu/~dpvc/talks/2006-12-08.IMA/editor.html or the sage-devel discussion about halfway down here: http://groups.google.com/group/sage-devel/browse_thread/thread/e23cde79a12fd0aa/65e8aac196f4fe8c) If we could (optionally) trigger Davide's equation editor when a person typed a dollar sign, I think that would be perfect for an equation editor. Jason --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Vote for TinyMCE spkg
Peter wrote: > There is a WYSIWYG equation plugin for TinyMCE that has a demo page at > http://www.imathas.com/editordemo/demo.html . > > On Firefox it uses MathML, and on other browsers it uses a graphics > images fallback approach. Oh, wow, that looks interesting. It looks like it would be fairly straightforward to get it to use jsmath instead of asciimath too. Thanks for pointing this out. Jason --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Vote for TinyMCE spkg
There is a WYSIWYG equation plugin for TinyMCE that has a demo page at http://www.imathas.com/editordemo/demo.html . On Firefox it uses MathML, and on other browsers it uses a graphics images fallback approach. --Peter On Oct 14, 7:38 am, "William Stein" <[EMAIL PROTECTED]> wrote: > On Tue, Oct 14, 2008 at 7:35 AM, Jason Grout > > > > <[EMAIL PROTECTED]> wrote: > > > William Stein wrote: > >> On Tue, Oct 14, 2008 at 5:06 AM, mhampton <[EMAIL PROTECTED]> wrote: > >>> +1 for inclusion. I think this is worth it, for the reasons given > >>> below by Jason. It is almost orthogonal in use to the "Its all text" > >>> plugin, which works great for me on WIndows but irritates me on macs > >>> for some reason (I uninstalled it, and now I can't remember exactly > >>> why). > > >>> Using Sage for computer labs, I need students to be able to edit a > >>> worksheet easily to write up their answers, and I think this will help > >>> quite a bit. It might actually make it easier for them to do a good > >>> lab writeup than it is in Mathematica (which has some powerful text > >>> editing capabilities but I don't think they are easy to use). > > >> [x] yes, include standard > > >> I think this proposed editor fits very squarely into the mission > >> statement of Sage, which is "provide a viable alternative to > >> Mathematica, etc." > > >> Does tinyMCE have any sort of equation plugin? Have you thought > >> about that at all? > > > No, and no. I haven't thought about it because doing mathematics like > > $x^2$ or $$x^2$$ still invokes jsmath, so we still have access to nice > > mathematics typesetting. > > > It looks like there have been inquiries for such: > > >http://tinymce.moxiecode.com/punbb/viewtopic.php?id=3790 > > > I still think that Davide Cervone's javascript equation editor is the > > best, by far (see > >http://www.math.union.edu/~dpvc/talks/2006-12-08.IMA/editor.htmlor the > > sage-devel discussion about halfway down here: > >http://groups.google.com/group/sage-devel/browse_thread/thread/e23cde...) > > I really like that editor. It looks gorgeous, and you can type > directly in latex if you want. Well, my questions was just > inspired by the remark about students typing up their > student projects using Sage. > > > > > If we could (optionally) trigger Davide's equation editor when a person > > typed a dollar sign, I think that would be perfect for an equation editor. > > > Jason > > -- > William Stein > Associate Professor of Mathematics > University of Washingtonhttp://wstein.org --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Problems with is_irreducible function
Hi, I just encountered a problem with the is_irreducible function. The following code does not work as exptected: p = 82434016654300679721217353503190038836571781811386228921167322412819029493183 F = GF(p) Fu. = F[] Fext2. = GF(p**2, name='X', modulus=u**2 + 2) xi = X + 1 Fext2v. = Fext2[] Fext6. = GF(p**6, name='Y', modulus=v**3 - xi) Fext6w. = Fext6[] f = w**2 - Y f.is_irreducible() Kind regards, Peter Schwabe signature.asc Description: Digital signature
[sage-devel] Re: sagemath.org website update #5
On Tue, Oct 14, 2008 at 7:41 AM, Robert Bradshaw <[EMAIL PROTECTED]> wrote: > > On Oct 12, 2008, at 2:45 PM, Harald Schilly wrote: > >> >> Hello all, here is a short update about the sagemath.org website. >> >> First, when i started to monitor the access, the usual number of >> visits per day was 800-1000. It still varies, but you can think of >> 2000 visits per day now. Mainly due to more exposure and blogs, more >> teaching of sage and much more -- except, there is also monitoring on >> trac and wiki now, but since a visit only counts for one session and >> not for page views, this does not account for such many visits. >> >> An important event happend in the last week, a slight slashdotting, >> because sage was mentioned in the comments of this article: >> http://books.slashdot.org/books/08/10/01/1329243.shtml >> this brought about 1300 visits. Oct 1st was also a new record high >> with 3024 visits, first time above 3000! >> >> Two interesting referring pages popped up. There are two courses >> teaching Sage in Austria: >> http://www.risc.uni-linz.ac.at/education/courses/ws2008/mathematik1/ >> (Linz, Upper Austria) >> http://www.math.tugraz.at/~huss/computermathematik08/ (Graz, Styria) >> e.g. look at http://www.math.tugraz.at/~huss/computermathematik08/ >> dateien/sage_tutorium_1.html >> >> If anybody knows about other courses or has links to past lectures, >> please tell me. I think it could be very useful to collect them just >> like collecting publications referencing Sage. > > Just out of curiosity, are you still keeping download stats? > Here are download numbers from sage.math from last week: Linux Binary: 62 OS X Binary: 13 Source: 49 VMware: 72 This is only one of the mirror sites, but is the most popular one. William --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Problem with multi-extension fields
Hi, the following code doesn't finish computation: p = 82434016654300679721217353503190038836571781811386228921167322412819029493183 F = GF(p) Fu. = F[] Fext2. = GF(p**2, name='X', modulus=u**2 + 2) xi = X + 1 xibar = 1 - X Fext2v. = Fext2[] Fext6. = GF(p**6, name='Y', modulus=v**3 - xi) Fext6w. = Fext6[] zeta = (Y**(p**2 - 1))**2 When using something like a = Y^100 instead of zeta = (Y**(p**2 - 1))**2 it appears that Sage (or pari) doesn't do reduction in the quadratic extension Fext2, the output is (X^33 + 33*X^32 + 528*X^31 + 5456*X^30 + 40920*X^29 + 237336*X^28 + 1107568*X^27 + 4272048*X^26 + 13884156*X^25 + 38567100*X^24 + 92561040*X^23 + 193536720*X^22 + 354817320*X^21 + 573166440*X^20 + 818809200*X^19 + 1037158320*X^18 + 1166803110*X^17 + 1166803110*X^16 + 1037158320*X^15 + 818809200*X^14 + 573166440*X^13 + 354817320*X^12 + 193536720*X^11 + 92561040*X^10 + 38567100*X^9 + 13884156*X^8 + 4272048*X^7 + 1107568*X^6 + 237336*X^5 + 40920*X^4 + 5456*X^3 + 528*X^2 + 33*X + 1)*Y Kind regards, Peter signature.asc Description: Digital signature
[sage-devel] Re: Vote for TinyMCE spkg
Peter wrote: > There is a WYSIWYG equation plugin for TinyMCE that has a demo page at > http://www.imathas.com/editordemo/demo.html . > > On Firefox it uses MathML, and on other browsers it uses a graphics > images fallback approach. The javascript svg editor plugin there also looks very interesting. The homepage for it is http://www1.chapman.edu/~jipsen/svg/asciisvg.html for further reference. Jason --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] More pictures from Sage Days 10
See http://picasaweb.google.co.uk/j.spies88/SageDays10AtNancy?authkey=S6KBCzf-v34# for some pictures of SD10. Cheers, Jaap --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: sagemath.org website update #5
On Oct 14, 4:41 pm, Robert Bradshaw <[EMAIL PROTECTED]> wrote: > > Just out of curiosity, are you still keeping download stats? > no, the point is, to get viable download stats you have to look at the webserver stats, see williams posting. I want to implement some tracking across all mirrors for clicked links on binaries, but that depends on activated javascript and not blocking the code. So, it will not be reliable, just "interesting". greetings harald --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Sage 3.1.3.rc0 released
On Oct 13, 4:28 pm, mhampton <[EMAIL PROTECTED]> wrote: > I had two timeout failures on my G4 mac (os 10.4), and one "real" > failure: > > sage -t devel/sage/sage/rings/real_lazy.pyx > ** > File "/Users/mh/Desktop/sage-3.1.3.rc0/tmp/real_lazy.py", line 549: > sage: complex(CLF(-1)^(1/4)) > Expected: > (0.70710678118654757+0.70710678118654746j) > Got: > (0.70710678118654746+0.70710678118654757j) > ** > > The timeouts were on sage/modular/abvar/homspace.py, and sage/plot/ > plot.py. Testing on that machine takes about 4 hours. Hi, this is now #4279. It is caused by numerical noise and will be fixed shortly. Unless I find something else in my logs expect 3.1.3 shortly. Cheers, Michael --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Sage 3.1.3.rc0 released
Hello folks, the final 3.1.3 is imminent - the only fix besides one doctest patch and the mandatory "make the documentation build patch" is the lazy_rings numerical noise doctest failure. Cheers, Michael --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Vote for TinyMCE spkg
On Tue, Oct 14, 2008 at 12:08 AM, Jason Grout <[EMAIL PROTECTED]> wrote: > > So, do you vote > > [X ] Yes, include TinyMCE as a standard package > [ ] Yes, include TinyMCE as an optional package > [ ] No, do not include TinyMCE as a package > Also, if this is added I hope that somewhere the text "Double click in a cell to edit" are written, so people know it is available. On the other hand, I never use the notebook (though but all except possibly one of my students do), so I don't know how much my vote should count! > > > Thanks, > > Jason > > > > > --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Vote for TinyMCE spkg
mabshoff wrote: > > > > [X ] Yes, include TinyMCE as a standard package > > I see no benefit going the optional route if one needs to apply some > patch, i.e. the burden to try it out is too high. The editor is well > maintained, works on seemingly all browsers, has an active community > and we should really have something like that in the notebook :) I was assuming that we would apply the patch, which would mean the functionality would be available immediately on installing the spkg (in other words, one would only need to install the spkg). I agree that that means that a majority of the people that would find the plugin extremely useful would probably see the barrier as too high. I'm curious how many people install optional spkgs anyway. For me, optional spkgs usually get blown away when I update to a new release, and then I'm usually too lazy to get them again (like the jsmath-image-fonts spkg). Anyways, I won't argue with the package being standard; just pointing out that a user wouldn't have to install a patch, just the spkg. Thanks, Jason --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Heaviside step and impulse functions
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 for the "applied math" part :) --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Heaviside step and impulse functions
What is wrong with using the piecewise defined functions for the unit step function? You are right though, delta functions are not implemented yet. Of course, they are not really functions either, so how they should be implemented is an issue as well. On Tue, Oct 14, 2008 at 4:14 PM, Ronan Paixão <[EMAIL PROTECTED]> wrote: > > 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 for > the "applied math" part :) > > > > --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Final Sage 3.1.3 sources are out
My copy of 31.3.rc0 got hosed somehow using sage -upgrade. I have no idea what I did wrong. On Tue, Oct 14, 2008 at 1:04 PM, mabshoff <[EMAIL PROTECTED]> wrote: > > Hello folks, > > here are the minimal fixes for the final 3.1.3: > > #4271: Paul Zimmermann: improve coverage test of ell_generic.py to > 100%, and fix typos [Reviewed by John Cremona] > #4272: Michael Abshoff: add the files from new coercion to the > reference manual [Reviewed by Mike Hansen] > #4279: Michael Abshoff: Sage 3.1.3.rc0: numerical noise in rings/ > real_lazy.pyx [Reviewed by Mike Hansen] > > Sources and a sage.math binary are at > > http://sage.math.washington.edu/home/mabshoff/release-cycles-3.1.3/ > > The upgrade does not work yet, but hopefully should be done later on > tonight. > > Cheers, > > Michael > > > > > --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Final Sage 3.1.3 sources are out
On Tue, Oct 14, 2008 at 1:04 PM, mabshoff <[EMAIL PROTECTED]> wrote: > > Hello folks, > > here are the minimal fixes for the final 3.1.3: > > #4271: Paul Zimmermann: improve coverage test of ell_generic.py to > 100%, and fix typos [Reviewed by John Cremona] > #4272: Michael Abshoff: add the files from new coercion to the > reference manual [Reviewed by Mike Hansen] > #4279: Michael Abshoff: Sage 3.1.3.rc0: numerical noise in rings/ > real_lazy.pyx [Reviewed by Mike Hansen] > > Sources and a sage.math binary are at > > http://sage.math.washington.edu/home/mabshoff/release-cycles-3.1.3/ > "The upgrade does not work yet, but hopefully should be done later on tonight." Oops - missed that!! > > Cheers, > > Michael > > > > > --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Vote for TinyMCE spkg
On Tuesday 14 October 2008, Jason Grout wrote: > So, do you vote > > [ ] Yes, include TinyMCE as a standard package > [ ] Yes, include TinyMCE as an optional package > [ ] No, do not include TinyMCE as a package I don't want to vote against it just know but I don't really get the need for a WYSIWYG editor in the notebook. I am very much in favor of easy text cell creation (using say ReST) but a WYSIWYG editor seems bloated to me. Cheers, Martin -- name: Martin Albrecht _pgp: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x8EF0DC99 _www: http://www.informatik.uni-bremen.de/~malb _jab: [EMAIL PROTECTED] --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Vote for TinyMCE spkg
William Stein wrote: > Does tinyMCE have any sort of equation plugin? Have you thought > about that at all? > > Could we put the html code provided by tinyMCE into an input cell and preparse %hide %html or %hideall %html Then, we could just write e.g. $E=m*c^2$ in the tinyMCE editor and it would be converted into an equation by Sage. Admittedly, this would not be WYSIWYG any more... Stan --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Vote for TinyMCE spkg
+1 for inclusion. I think this is worth it, for the reasons given below by Jason. It is almost orthogonal in use to the "Its all text" plugin, which works great for me on WIndows but irritates me on macs for some reason (I uninstalled it, and now I can't remember exactly why). Using Sage for computer labs, I need students to be able to edit a worksheet easily to write up their answers, and I think this will help quite a bit. It might actually make it easier for them to do a good lab writeup than it is in Mathematica (which has some powerful text editing capabilities but I don't think they are easy to use). -M. Hampton On Oct 14, 5:35 am, Jason Grout <[EMAIL PROTECTED]> wrote: > Stan Schymanski wrote: > > Hi Martin, > > > I think that most of the developers would agree with you, but bear in > > mind that a large number of potential users come from the WYSIWYG icon > > clicking world. These are often the same people that get discouraged by > > the need of having to install optional packages, so I wonder if there is > > a way of including something as standard but providing a way of > > deselecting it for advanced users? Something like the standard version > > with bells and whistles for the newbie and a customised version for the > > wiz. > > > I have the feeling that TinyMCE could make the notebook more attractive > > to users that are not familiar with writing code. They could ease into > > coding slowly. Since the generated html code still appears in the > > notebook, this would be a nice way of learning html, too. Eventually, > > the user is likely to need it less and less and do his own html coding, > > at which point he could deselect the package again. > > Yes, that is the point for me; to make the barrier of entry low or > non-existent. In other words, a new user should be able to quickly and > easily create a nice-looking worksheet without having to learn both Sage > and ReST, especially since learning ReST is not a mathematical activity. > I'm not saying that they shouldn't learn ReST eventually, but I think > that learning Sage will be enough of a learning curve that we shouldn't > insist that they learn yet another language in order to be able to write > text in their worksheet. > > FYI, the spkg is around 500k, and installed, it is about 2.4M. > > Thanks, > > Jason --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Sage public notebook servers
Hi, This is a good discussion. It's interesting to see, after all this time, the public notebook being attacked! (exclaimed in the most respectful, positive, excited that now this problem really has to be solved manor :) Over the last few months I've been thinking about and working on the problems associated with running notebook processes (which is like essentially handing out shell accounts) in a safe, secure and useful way. I split the problems into orthogonal (as possible) components, and the one I worked on most recently asks 'what is the best way to run a secure python process'. There are quite a few pieces of work that exist on this problem; probably the main bottleneck in progressing is my inexperience with system administration and knowledge of how Python works. Rough work and references: http://trac.knoboo.com/wiki/Security I've made some headway in directions varying from Sage's security model as it was, but unfortunately I am too busy at the moment to make any serious progress. I plan to resume working on this in about a month. It would be great to consult and collaborate with Michael Mabshoff and any other experienced gurus of that sort -- sys admins and programmers that really understand security in the os environment. On Mon, Oct 13, 2008 at 3:31 PM, mabshoff <[EMAIL PROTECTED]> wrote: > > On Oct 13, 3:05 pm, "Timothy Clemans" <[EMAIL PROTECTED]> > wrote: > > Hi Timothy, > > > I had never heard of "fork bomb" until now. According to Wikipedia, > > it's somewhat preventable by implementing a limit of the number of > > processes per user. > > just read "man ulimit" :) > > > I like the fact that Knoboo makes it easy to run the actual Sage > > processes on a completely different machine or at least in a virtual > > machine. At some point Knoboo might have a system for dealing with > > down kernel servers where one can still access and download notebooks. > > Nope, once you fork bomb and you do not have a root shell open to the > box it is game over in the vast majority of cases. Any external access > usually requires a fork of some sort and since someone just fork > bombed the box it is a gonner. Actually, the concept Timothy is talking about is true. The framework for running notebook processes in Knoboo is very different from what Sage does to serve notebooks. Indeed, the machine running actual notebook processes (or engine processes as we call them) is considered history in this situation, however, access to the notebook data would be absolutely un-affected -- an important point -- because users *can* still view/download their notebook data as it is maintained by an entirely separate system running on a physically separated machine. Not to be nit-picky, but this is very attractive from a user perspective; it's not as catastrophic as the entire service disappearing (like what's happening now). > > > > Would the entire Sage Notebook be ran in a VMWare image or the > > individual Sage per sage unix user processes inside their own? So like > > sage0 would have a virtual machine, sage1 would have its own, etc. > > Yep, that is pretty much the way to go together with some more tweaks > to the setup. The main issue is that a skilled attacker (not likely > the person who fork bombed the box) can break out or DOS pretty much > any setup, so one has to assume that people interested in using the > Sage notebook are neither idiots or assholes. Back in the day I also > did penetration testing and in the end if you give someone a local > shell account (which is pretty much any notebook account) you have to > trust the person to some extent. Given a shell account it is only a > question of time even for someone semi-skilled to execute an exploit > found on the net before one can patch the box. I guess in the end the > people relying on the public notebook server are the screwed ones here > because even once the server is back up it will be much more locked > down. > This raises the issue of how to balance security (how tight to lock the server down) with feature/functional availability (what functionality is crippled due to imposed security constraints)... Regards, -Dorian > > Cheers, > > Michael > > > > > --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Final Sage 3.1.3 sources are out
Hello folks, here are the minimal fixes for the final 3.1.3: #4271: Paul Zimmermann: improve coverage test of ell_generic.py to 100%, and fix typos [Reviewed by John Cremona] #4272: Michael Abshoff: add the files from new coercion to the reference manual [Reviewed by Mike Hansen] #4279: Michael Abshoff: Sage 3.1.3.rc0: numerical noise in rings/ real_lazy.pyx [Reviewed by Mike Hansen] Sources and a sage.math binary are at http://sage.math.washington.edu/home/mabshoff/release-cycles-3.1.3/ The upgrade does not work yet, but hopefully should be done later on tonight. Cheers, Michael --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Vote for TinyMCE spkg
Stan Schymanski wrote: > Hi Martin, > > I think that most of the developers would agree with you, but bear in > mind that a large number of potential users come from the WYSIWYG icon > clicking world. These are often the same people that get discouraged by > the need of having to install optional packages, so I wonder if there is > a way of including something as standard but providing a way of > deselecting it for advanced users? Something like the standard version > with bells and whistles for the newbie and a customised version for the > wiz. > > I have the feeling that TinyMCE could make the notebook more attractive > to users that are not familiar with writing code. They could ease into > coding slowly. Since the generated html code still appears in the > notebook, this would be a nice way of learning html, too. Eventually, > the user is likely to need it less and less and do his own html coding, > at which point he could deselect the package again. Yes, that is the point for me; to make the barrier of entry low or non-existent. In other words, a new user should be able to quickly and easily create a nice-looking worksheet without having to learn both Sage and ReST, especially since learning ReST is not a mathematical activity. I'm not saying that they shouldn't learn ReST eventually, but I think that learning Sage will be enough of a learning curve that we shouldn't insist that they learn yet another language in order to be able to write text in their worksheet. FYI, the spkg is around 500k, and installed, it is about 2.4M. Thanks, Jason --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Vote for TinyMCE spkg
[X ] Yes, include TinyMCE as a standard package I see no benefit going the optional route if one needs to apply some patch, i.e. the burden to try it out is too high. The editor is well maintained, works on seemingly all browsers, has an active community and we should really have something like that in the notebook :) Cheers, Michael --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Sage 3.1.3.rc0 released
Builds fine and passes all tests on the 32-bit Gentoo box Linux artin 2.6.24-tuxonice-r9 #1 SMP Wed Oct 8 18:23:45 EST 2008 i686 Intel(R) Core(TM)2 Duo CPU T9300 @ 2.50GHz GenuineIntel GNU/Linux Best, Alex On Mon, Oct 13, 2008 at 5:46 PM, mabshoff <[EMAIL PROTECTED]> wrote: > > Hello folks, > > the is finally (and hopefully) the last release before 3.1.3. Unless > something major is broken this tarball will be identical (modulo > version string and some potential documentation fix) to the final > 3.1.3 release. All major build issues should be fixed and it should > also pass doctests on all supported platforms, but I guess we will > find out shortly :) > > Sources and a sage.math binary can be found in > > http://sage.math.washington.edu/home/mabshoff/release-cycles-3.1.3/ > > Please build, test and report all issues as usual. > > Cheers, > > Michael > > Merged in Sage 3.1.3.rc0: > > #1346: Martin Albrecht: fpLLL doctests don't test fpLLL [Reviewed by > Willem Jan Palenstijn] > #3945: Mike Hansen, Burcin Erocal: sage -gdb doesn't work [Reviewed by > Michael Abshoff] > #4159: Michael Abshoff: sage -bdist fails on osx 10.5 ppc and intel > with libpng errors [Reviewed by Mike Hansen] > #4214: Alex Ghitza: elliptic_logarithm gives inaccurate answers > [Reviewed by Georg Weber] > #4219: Michael Abshoff: MacOSX: work around java detection hang in r > due to "Mac OS X 10.5 Update 2" [Reviewed by Mike Hansen] > #4228: Michael Abshoff: eclib-20080310.p6.spkg is broken with 'export > MAKE="make -j4"' [Reviewed by Mike Hansen] > #4231: William Stein: magma -- long input too verbose in some cases > [Reviewed by Georg Weber] > #4240: William Stein: magma -- increase doctest coverage of magma.py > [Reviewed by Georg Weber, Michael Abshoff] > #4242: Jason Badlaw: Bugfix for dominates() method of partition.py > [Reviewed by Mike Hansen] > #4253: Martin Albrecht: polybori interface: equality operator for > navigators [Reviewed by Michael Brickenstein] > #4257: Martin Albrecht: support for Singular's 'intmat' and > 'intvec' [Reviewed by Mike Hansen] > #4262: William Stein: Elliptic curve a_invariants command returns a > list reference [Reviewed by Martin Albrecht] > #4263: William Stein: elliptic curves -- point height serious stupid > bug in raising error [Reviewed by Martin Albrecht] > #4270: Nicolas Thiery: Add sage-combinat script and sage-combinat > [Reviewed by Michael Abshoff] > > > > -- Alex Ghitza -- Lecturer in Mathematics -- The University of Melbourne -- Australia -- http://www.ms.unimelb.edu.au/~aghitza/ --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Vote for TinyMCE spkg
On Oct 14, 11:11 am, Jason Grout <[EMAIL PROTECTED]> wrote: > Peter wrote: > > There is a WYSIWYG equation plugin for TinyMCE that has a demo page at > >http://www.imathas.com/editordemo/demo.html. > > > On Firefox it uses MathML, and on other browsers it uses a graphics > > images fallback approach. > > The javascript svg editor plugin there also looks very interesting. The > homepage for it is > > http://www1.chapman.edu/~jipsen/svg/asciisvg.html > > for further reference. > This is so much better and easier than WebEq (those who've used Blackboard will know) that it's not even funny. Shows that javascript beats Java when you have small things to do, I suppose; wow! Are any of these things very browser-compatible? In particular I refer to Safari and Opera - e.g. the svg page, or at least its graphics, won't render properly in Safari 3.1.2, as the page points out. I particularly like the possibility of using this to draw a graph of sin(x) in a text box under a Sage-generated graph of sin(x) in a cell... actually, I don't know if I like that or not, but it does have a fairly intuitive structure as far as the graphs are concerned. - kcrisman --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Heaviside step and impulse functions
> You are right though, delta functions are not implemented yet. Of > course, they are not > really functions either, so how they should be implemented is an issue as > well. The delta functional is a linear functional on the vector space R^R which assigns the function value at zero to each function: \delta: R^R \rightarrow R f \mapsto f(0), which is written thought integration of \delta*f over the real line, in this sense it's a generalization of a 'real' square integrable function which is uniquely characterized (up to almost everywhere) by it's 'action' on the vector space of square integrable functions by f:L^2 \rightarrow R g \mapsto \int f(x)*g(x) dx =: Actually the delta function is an element of a vector space (on the vector space of all linear (not necessary continuous) functions from R^R to R or L^2 to R), and it's multiplication with a 'real' function is an element of this vector space as well, an issue could be that this multiplication is not extendable to the whole vector space, but is only allowed partially (maybe thats the problem), OK, I'm beginning to understand: is it not possible in Python to define partially operators or operators which act on different objects? In this case the operator '*' must be extended partially .. I'm sure you are aware of all this things, I'm was just wondering ..., because I thought there could at least be implemented an object (of course not as a function of R^R), allowed to appear inside an integral, ... Georg --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Of possible use to the Sage project
Just came across this code which may be of relevance: http://www.nag.co.uk/Projects/Frisco/frisco/node8.htm Hazem --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Of possible use to the Sage project
I wonder if any of this code sponsored by NAG is truely FOSS. I didn't see any licensing statements though I didn't dig very deep. On Tue, Oct 14, 2008 at 9:36 PM, Hazem <[EMAIL PROTECTED]> wrote: > > > Just came across this code which may be of relevance: > > http://www.nag.co.uk/Projects/Frisco/frisco/node8.htm > > Hazem > > > > --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Sage public notebook servers
> > Actually, the concept Timothy is talking about is true. The framework > for running notebook processes in Knoboo is very different from what > Sage does to serve notebooks. Indeed, the machine running actual > notebook processes (or engine processes as we call them) is considered > history in this situation, however, access to the notebook data would be > absolutely un-affected -- an important point -- because users *can* > still view/download their notebook data as it is maintained by an > entirely separate system running on a physically separated machine. Not > to be nit-picky, but this is very attractive from a user perspective; > it's not as catastrophic as the entire service disappearing (like what's > happening now). If I understand things correctly, the biggest obstacle to Sage doing this currently is that the client processes expect to be able to read and write the notebook files (the files associated with the cells in the notebook) and the server expects the output to automatically appear in the correct cell directory. Is that correct? Jason --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Sage public notebook servers
On Mon, Oct 13, 2008 at 3:31 PM, mabshoff <[EMAIL PROTECTED]> wrote: > > On Oct 13, 3:05 pm, "Timothy Clemans" <[EMAIL PROTECTED]> > wrote: > > Hi Timothy, > >> I had never heard of "fork bomb" until now. According to Wikipedia, >> it's somewhat preventable by implementing a limit of the number of >> processes per user. > > just read "man ulimit" :) > >> I like the fact that Knoboo makes it easy to run the actual Sage >> processes on a completely different machine or at least in a virtual >> machine. At some point Knoboo might have a system for dealing with >> down kernel servers where one can still access and download notebooks. > > Nope, once you fork bomb and you do not have a root shell open to the > box it is game over in the vast majority of cases. Any external access > usually requires a fork of some sort and since someone just fork > bombed the box it is a gonner. > >> Would the entire Sage Notebook be ran in a VMWare image or the >> individual Sage per sage unix user processes inside their own? So like >> sage0 would have a virtual machine, sage1 would have its own, etc. Below is a snippet from knoboo-devel that describes how to use Xen as the backed Kernel Server, allows the frontend (Application Server) and all user data to survive a backend (Kernel Server) attack. (as Dorian already described) There is a good image here: http://trac.knoboo.com/wiki/Security the describes the architecture visually. (In the diagram the Notebook processes are the Interpreters a.k.a "Engine Server"s.) Here is the thread that describes (basically) how to set up Xen on Ubuntu: === [from message http://groups.google.com/group/knoboo-devel/msg/3540f4dc131b7453] === A solution that I very much favor is setting up a dedicated virtual machine (Xen, for example) that acts as a sandbox for the kernel. The architecture of knoboo is such that you can run the 'kernel server' remotely (or, in the case of a local virtual machine, in your LAN). Then, when you start knoboo, you just specify the remote kernel like so: ./knoboo-start -h some_host_ip_or_domain_name -q the_kernel_server_port this assumes that you already started up the kernel on the virtual machine like so "./kernel-start" (which is turn relies on having knoboo on the virtual machine). The very cool part about this is that *no state* is ever kept on the kernel server, so it can blow up and no data will be lost :). It also has the benefit of allowing you to tweak the networking and resource precisely to meet your requirements because it is a completely dedicated (virtual) machine. I have experience with Xen on ubuntu, and setting it up can potentially be very easy (for debian based distros, but YMMV): get the packages: $ sudo apt-get install ubuntu-xen-server libc6-xen use 'xen-tools' (which gets installed from the above apt-get) to create a virtual machine: $ sudo xen-create-image --hostname=knoboo_kernel --dist=gutsy --ip=192.168.X.X now log into 'knoboo_kernel': $ sudo xm console knoboo_kernel Now install the knoboo dependencies. === --~--~-~--~~~---~--~~ 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 this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Final Sage 3.1.3 sources are out
I built 3.1.3 with no trouble (parallel build now works), and in "make
test" I got the usual failures with Lisp and Maxima [1]. But now I can't
even start Sage!
When I do "./sage" in the appropriate directory, I get the traceback in
the attached file. The install log is at [2]. I edited the sage script
to point to the right directory, I have a clean shell, but I still get
the error.
As before, this on an Ubuntu Intrepid amd64 system. Suggestions?
Dan
1.
http://groups.google.com/group/sage-devel/search?group=sage-devel&q=tests+hang+with+3.1.2
2. http://mathsci.kaist.ac.kr/~drake/logs/install-20081015.log
--
--- Dan Drake <[EMAIL PROTECTED]>
- KAIST Department of Mathematical Sciences
--- http://mathsci.kaist.ac.kr/~drake
[EMAIL PROTECTED]:/opt/sage-3.1.3$ ./sage
--
| SAGE Version 3.1.3, Release Date: 2008-10-14 |
| Type notebook() for the GUI, and license() for information.|
--
ERROR: An unexpected error occurred while tokenizing input
The following traceback may be corrupted or invalid
The error message is: ('EOF in multi-line statement', (25, 0))
---
AttributeErrorTraceback (most recent call last)
/opt/sage-3.1.3/local/bin/sage-startup in ()
16 from sage.all_cmdline import *
17
---> 18
_=sage.misc.interpreter.load_startup_file(os.environ["SAGE_STARTUP_FILE"])
19
20
/opt/sage-3.1.3/local/lib/python2.5/site-packages/sage/misc/interpreter.pyc in
load_startup_file(file)
146 if os.path.exists(file):
147 X = do_prefilter_paste('load "%s"'%file,False)
--> 148 _ip.runlines(X)
149 if os.path.exists('attach.sage'):
150 X = do_prefilter_paste('attach "attach.sage"',False)
/opt/sage-3.1.3/local/lib/python2.5/site-packages/IPython/ipapi.pyc in
runlines(self, lines)
305 clean=cleanup_ipy_script(script)
306 # print "_ip.runlines() script:\n",clean #dbg
--> 307 self.IP.runlines(clean)
308 def to_user_ns(self,vars, interactive = True):
309 """Inject a group of variables into the IPython user namespace.
/opt/sage-3.1.3/local/lib/python2.5/site-packages/IPython/iplib.pyc in
runlines(self, lines)
1970 # push to raw history, so hist line numbers stay in sync
1971 self.input_hist_raw.append("# " + line + "\n")
-> 1972 more = self.push(self.prefilter(line,more))
1973 # IPython's runsource returns None if there was an error
1974 # compiling the code. This allows us to stop
processing right
/opt/sage-3.1.3/local/lib/python2.5/site-packages/sage/misc/interpreter.pyc in
sage_prefilter(self, block, continuation)
414 block2 = block
415
--> 416 return InteractiveShell._prefilter(self, block2, continuation)
417
418
/opt/sage-3.1.3/local/lib/python2.5/site-packages/IPython/iplib.pyc in
_prefilter(self, line, continue_prompt)
2259 #print 'pre <%s> iFun <%s> rest <%s>' % (pre,iFun,theRest) #
dbg
2260
-> 2261 return prefilter.prefilter(line_info, self)
2262
2263
/opt/sage-3.1.3/local/lib/python2.5/site-packages/IPython/prefilter.pyc in
prefilter(line_info, ip)
149 handler = check(line_info, ip)
150 if handler:
--> 151 return handler(line_info)
152
153 return ip.handle_normal(line_info)
/opt/sage-3.1.3/local/lib/python2.5/site-packages/IPython/iplib.pyc in
handle_magic(self, line_info)
2355 cmd = '%s_ip.magic(%s)' % (line_info.preWhitespace,
2356make_quoted_expr(iFun + " " +
theRest))
-> 2357 self.log(line_info.line,cmd,line_info.continue_prompt)
2358 #print 'in handle_magic, cmd=<%s>' % cmd # dbg
2359 return cmd
AttributeError: 'InteractiveShell' object has no attribute 'log'
WARNING: Failure executing file:
sage:
Exiting SAGE (CPU time 0m0.04s, Wall time 0m3.36s).
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