[sage-support] Why does Sage Math crash instantly? / Running .sage files?
Hello. First of all, I need to Mention that I am completely new to Sage Math and I have no idea what causes my problem(s), like seriousely, no idea. When I start SageMath, it instantly crashes, I don't even touch anything. I'm running Windows 10 and I downloaded the binaries, a virtual box and this sage-8.6.tar.gz file. I am sure that I must be missing something but I don't know what. Yesterday, I managed to get Sage to work, so in the terminal i could write simple commands like sage:4+3 and later, I reinstalled python. Now it does not work anymore. My original aim was it to have sagetex in Latex, but for some reason running the .sage file which is created with every document using sagetex doesn't do anything and sage does not compile my document. And yes, I did follow the instructions how to make sagetex known to tex. I have no idea how to continue, so many problems and i'm desperately trying to get things to work. (Feel like I downloaded half the Internet...) Thank you very much for any help. -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
[sage-support] can't run sage in texmacs
Which version of TeXmacs and Safe are you using? Ubuntu? -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
[sage-support] Re: duplicate legend
Still some work must be done in the Sage plugin. In the meantime, the
following plugin adaptation to the Python's TeXmacs plugin should work in
Linux. I will try to have the Sage plugin be updated in the coming weeks,
but in the meantime you can try this one. Just extract itand put into your
.TeXmacs file inside your plugins directory.
I still need to look into the graphs shown in the plugin.
-A.
On Monday, January 22, 2018 at 8:12:04 AM UTC-6, HG wrote:
>
> Two years ago I made this pic in a texmacs sage session, but
> unfortunatly sage doesn't work anymore with texmacs, I am reproducing it
> but I have the legend problem, otherwise I think it should be even nicer
> with new sage 8 xx .
>
> Thanks for any help :)
>
> Henri
>
>
> Le 22/01/2018 à 14:57, Henri Girard a écrit :
> > Hi,
> >
> > After looking in few old tickets, I can't correct the duplicate legend ?
> >
> > c=3e8;h=6.626*(10^-34);k = 1.281*(10^-23)
> > k1=8*pi*h*c;k2=(h*c)/k
> > E(l,T)=k1*(l*1e-9)^-5*(1/(exp(k2/((l*1e-9)*T))-1))
> > f1=0;f2=E(l,3500);f3=E(l,4000);f4=E(l,4500);
> > params=dict(figsize=3,axes=False,fontsize=6,
> > frame=True,gridlines="major",
> > gridlinesstyle=dict(color="lightgrey",
> > linestyle="-"),
> > axes_labels=("$\Lambda[nm]$",\
> > "$E(\\Lambda)[KJ/nm$"),
> > legend_font_size=6)
> > f1=0;f2=E(l,3500);f3=E(l,4000);f4=E(l,4500)
> > b=plot([f2,f3],l,10,4000,legend_label="4000",
> >fill =[0, [0]],
> > fillcolor=['blue','green'],
> > fillalpha=1)
> > p=plot([f1,f2],l,10,4000,legend_label="3000",
> >fill={1: [0]},
> >fillcolor=["red","yellow"],
> >fillalpha=1)
> > d=plot([f3,f4],l,10,4000,legend_label="5000",
> >fill =[1, [0]],
> >fillcolor=['yellow','red'],
> >fillalpha=0.5)
> > v=plot(p+b+d)
> > v.show(**params)
> >
> > Any help ?
> >
> > Regards
> >
> > Henri
> >
>
>
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[sage-support] introduction and help for math calculation online
Hi, My name is Adrian, I'm new here, and I don't have knowledge about Sage. I need somebody who help me understand How can I call to webservice or something similar to calculate maths. Is something like that?, because I need solution to my final project for second degree. I'm thinking about web service to call to him and asking about solution of calculations. I'm preparing my final project in c#/ web app. I think that the bast way could be via web service, but If not, maybe some dll or RSS channel. I don't have idea about Sage and solutions of Sage. Any idea to help me? Additionally I need way to restrict similar calculations e.g. 3+2 and 2+3 . but It's the simplest. But if a calculations will be bigger and dificult, I don't have Idea to restrict them. Some Idea, languages, dlls, parses from c#. Please, help me! I don't have a lot of time now to prepare ma project, so I need you help. Thanks for each response. Best wishes, Adrian -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
[sage-support] Re: Sage 4.8 notebook/server error on OSX and Linux
As usually, one tries to find the error source several hours and then, after asking for help, one finds it in minutes. The problem was notebooks files got corrupted after a power outage. I've moved the directory to a backup location, recreated it by running Sage and then copied the old files from admin/ directory. All is OK with an empty notebook folder. I'll search the user history to see if I can eliminate the error source. Topic closed. -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Sage 4.8 notebook/server error on OSX and Linux
Hi, I have just tried to move on to v4.8 and I have encountered an error, on both precompiled binaries for OSX 10.6 64bit (running on OSX 10.6.8) and on OpenSuse Linux 64bit (where Sage was compiled from sources, which went OK). The error is as following: on any worksheet, if a click "evaluate" under a cell, the web browser sends the request to the server, and it waits for it, but it never receives one. Instead Sage outputs the same error several times (appended in the end). If I "save & close" and then reopen the worksheet I now see the result of "evaluate" under that cell which tells me the issue is in server's response to requests. Sage error output (identical on pre-build binaries for OSX and on compiled from source sage on Suse Linux), repeated several times for one request: 2012-02-17 00:45:11+0200 [HTTPChannel,13,127.0.0.1] Exception rendering: 2012-02-17 00:45:11+0200 [HTTPChannel,13,127.0.0.1] Unhandled Error Traceback (most recent call last): File "/data/sys/bin/sagemath.org/sage-4.8/local/lib/python2.6/site-packages/Twisted-9.0.0-py2.6-linux-x86_64.egg/twisted/internet/defer.py", line 625, in gotResult _deferGenerator(g, deferred) File "/data/sys/bin/sagemath.org/sage-4.8/local/lib/python2.6/site-packages/Twisted-9.0.0-py2.6-linux-x86_64.egg/twisted/internet/defer.py", line 602, in _deferGenerator deferred.callback(result) File "/data/sys/bin/sagemath.org/sage-4.8/local/lib/python2.6/site-packages/Twisted-9.0.0-py2.6-linux-x86_64.egg/twisted/internet/defer.py", line 238, in callback self._startRunCallbacks(result) File "/data/sys/bin/sagemath.org/sage-4.8/local/lib/python2.6/site-packages/Twisted-9.0.0-py2.6-linux-x86_64.egg/twisted/internet/defer.py", line 307, in _startRunCallbacks self._runCallbacks() --- --- File "/data/sys/bin/sagemath.org/sage-4.8/local/lib/python2.6/site-packages/Twisted-9.0.0-py2.6-linux-x86_64.egg/twisted/internet/defer.py", line 323, in _runCallbacks self.result = callback(self.result, *args, **kw) File "/data/sys/bin/sagemath.org/sage-4.8/local/lib/python2.6/site-packages/Twisted-9.0.0-py2.6-linux-x86_64.egg/twisted/web2/resource.py", line 230, in ).addCallback(lambda res: self.render(request)) File "/data/sys/bin/sagemath.org/sage-4.8/devel/sagenb/sagenb/notebook/twist.py", line 1244, in render notebook.add_to_user_history(H, self.username) File "/data/sys/bin/sagemath.org/sage-4.8/devel/sagenb/sagenb/notebook/notebook.py", line 956, in add_to_user_history history = self.user_history(username) File "/data/sys/bin/sagemath.org/sage-4.8/devel/sagenb/sagenb/notebook/notebook.py", line 938, in user_history for hunk in self.__storage.load_user_history(username): File "/data/sys/bin/sagemath.org/sage-4.8/devel/sagenb/sagenb/storage/filesystem_storage.py", line 251, in load_user_history return self._load(filename) File "/data/sys/bin/sagemath.org/sage-4.8/devel/sagenb/sagenb/storage/filesystem_storage.py", line 134, in _load return cPickle.load(open(self._abspath(filename))) exceptions.EOFError: Thank you. -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Bug in implicit_plot?
In the following I expected the line $y=x$ in red for q; and the line
$y=-x$ in yellow for p. The plot for p is as desired, but the plot
for q contains also the line $y=-x$. This is using sage 4.6.1
#Is this a bug?
x,y=var('x y')
q=implicit_plot((x-y)/(x+y)==0,(x,-2,2),(y,-2,2),color='red')
p=implicit_plot((x+y)/(x-y)==0,(x,-2,2),(y,-2,2),color='yellow')
show(q)
show(p)
show(p+q)
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[sage-support] the experimental wxpython package
I am using an asus EEE1000 (Intel atom), 32 bit with Ubuntu 110.10, Maverick Meercat I edited the file /media/sage/sage-4.6-linux-32bit-ubuntu_10.04_lts-i686-Linux/local/lib/ pkgconfig/libpng.pc since SAGE_ROOT was defined twice and while installing it complained about that. I installed the packages libglu1-mesa-dev libgl1-mesa-dev libgtk2.0-dev libwxgtk2.8-dev and their dependencies. But after compiling for a while it gave the error message: In file included from ../include/wx/gsocket.h:179, from ../src/gtk/gsockgtk.cpp:21: ../include/wx/unix/gsockunx.h:40: error: using typedef-name ‘GSocket’ after ‘class’ /usr/include/glib-2.0/gio/giotypes.h:132: error: ‘GSocket’ has a previous declaration here ../src/gtk/gsockgtk.cpp: In function ‘void _GSocket_GDK_Input(void*, gint, GdkInputCondition)’: ../src/gtk/gsockgtk.cpp:34: error: ‘struct _GSocket’ has no member named ‘Detected_Read’ Any ideas how to make the experimental package compile or have sage use the wxpython that I have in my system? -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: sage console in ubuntu 10.10 and jmol
Solved! I did sage -sh and then i tried jmol. It said that it could not find the main class because it could not find a directory related to open jvm. I had installed sun-java6, but I checked for the directory. I guess sage found the directory and assumed that I had openjava. The whole thing got solved once I went to Synaptic (not software center) and completely remove all the open java packages as well as the iced tea ones. This did the trick. On Oct 28, 2:57 pm, adrian wrote: > I installed the sage 4.5.3 binary in my little netbook, and when I > type > sphere() > or show(sphere()= > > nothing happens. I have the package sun-java6-bin sun-java6-jre and > sun-java6-plugin installed. All works in the notebook. > > Is this intended? > > I do the same in an ubuntu 10.04 and I do get the jmol window, unlike > with 10.10. > Thanks. > > -Adrián. -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] sage console in ubuntu 10.10 and jmol
I installed the sage 4.5.3 binary in my little netbook, and when I type sphere() or show(sphere()= nothing happens. I have the package sun-java6-bin sun-java6-jre and sun-java6-plugin installed. All works in the notebook. Is this intended? I do the same in an ubuntu 10.04 and I do get the jmol window, unlike with 10.10. Thanks. -Adrián. -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: sage 4.3.4 or 4.3.5 on solaris sparc
IT WORKED!!! I just heard from the systems administrator, and the problem was, indeed, the path to the gcc libraries. Everything works so far. Thank you very much for your patience and prompt answer. -Adrian. On Apr 2, 1:58 pm, "Dr. David Kirkby" wrote: > adrian wrote: > > We did not compile sage, but used the one that was pre-compiled. The > > error is > > --- > > ImportError: ld.so.1: python: fatal: relocation error: file /opt/local/ > > src/sage-4.3.4-Solaris-sun4u-SunOS/local/lib//libntl.so: symbol > > _ZSt16__ostream_insertIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_PKS3_i: > > referenced symbol not found > > WARNING: Failure executing code: 'import sage.misc.preparser_ipython; > > sage.misc.preparser_ipython.magma_colon_equals=True' > > --- > > > We did put the paths for some libraries, and tried to make it work. > > Interestingly, it can compute 1+2, but not much more than that. > > > This is what the output says: > > A few thoughts on this. > > 1) What version of 'tar' is first in your path? If it is the Sun version of > tar, > it is incapable of extracting the tar file correctly. > > If so, try this, which will use a GNU version of tar. > > $ /usr/sfw/bin/gtar xfz sage-4.3.4-Solaris-sun4u-SunOS.tar.gz > > 2) Can you try > > $ rm -rf $HOME/.sage > > which will clear out any debris which might be left from previous failed > > When you try to run sage for the first time, you should get a message about > rebuilding parts of sage, > > The Sage install tree may have moved. > Regenerating Python.pyo and .pyc files that hardcode the install PATH > (please wait at most a few minutes)... > Do not interrupt this. > > and I believe it calls 'ranlib', 'ar' or similar. If /usr/ccs/bin is not in > the > path, it will not find them which might result in a corrupted installation. > > If these are not found, it would be sensible that we report an error and exit, > but I don't think that happens. > > 3) If that does not work, can you try the binary from this URL - use p7zip to > decompress it, which is standard with recent releases of Solaris 10, though a > patch (only available with a contract), is needed for older updates of > Solaris 10. > > http://boxen.math.washington.edu/home/kirkby/Solaris-binaries/sage-4 > > It was built a Sun Blade 1000 and has been used on a Sun T5240 too. > > Dave -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: sage 4.3.4 or 4.3.5 on solaris sparc
[hilbert/export/grad/soto]> gcc -v Reading specs from /opt/csw/gcc3/lib/gcc/sparc-sun-solaris2.8/3.4.6/ specs Configured with: ../sources/gcc-3.4.6/configure --prefix=/opt/csw/gcc3 --with-local-prefix=/opt/csw --without-gnu-as --with-as=/usr/ccs/bin/ as --without-gnu-ld --with-ld=/usr/ccs/bin/ld --enable-threads=posix -- enable-shared --enable-multilib --enable-nls --with-included-gettext -- with-libiconv-prefix=/opt/csw --with-x --enable-java-awt=xlib --enable- languages=all Thread model: posix gcc version 3.4.6 On Apr 2, 3:42 am, "Dr. David Kirkby" wrote: > adrian wrote: > > Hi, in the math department here at Montana State, we were trying to > > install sage on Sparc. There are some reports that sage 4.3.4 could > > be installed on Solaris/Sparc, and we got a binary following the > > thread > > >http://groups.google.com/group/sage-support/browse_thread/thread/62a9... > > > Unfortunately, it seems that that binary of sage is not finding the > > libraries in the places it thinks they are. Is there a way to tell > > sage where they are? > > > Thanks. > > -Adrian. > > Can you be more specific about the libraries and post the error message? You > probably need LD_LIBRARY_PATH to include the location of the gcc's libraries > libgcc_s, libgfortran & libstdc++. > > Can you also post the output of gcc -v that was used to compile sage? > > Sage 4.3.4 has been built several times on Solaris and it passes all the > selftests. It's been built on both sun4u and sun4v processor families, which > includes anything capable of running Solaris 10. > > dave -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org To unsubscribe, reply using "remove me" as the subject.
[sage-support] sage 4.3.4 or 4.3.5 on solaris sparc
Hi, in the math department here at Montana State, we were trying to install sage on Sparc. There are some reports that sage 4.3.4 could be installed on Solaris/Sparc, and we got a binary following the thread http://groups.google.com/group/sage-support/browse_thread/thread/62a920bf860e9e82 Unfortunately, it seems that that binary of sage is not finding the libraries in the places it thinks they are. Is there a way to tell sage where they are? Thanks. -Adrian. -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org To unsubscribe, reply using "remove me" as the subject.
[sage-support] Re: matrix restrict only works with row vectors.
Sorry; the function I wrote is wrong: def restrict_right(M,W): return (M.transpose().restrict(W)).transpose() On Dec 3, 11:23 pm, adrian wrote: > The following code breakes with > ArithmeticError: subspace is not invariant under matrix > > since sage assumes that vectors are left vectors. However there is no > restrict_right nor restrict_left methods. > > V=VectorSpace(QQ,3) > W=V.subspace_with_basis([[0,1,0],[1,1,0]]) > M=matrix(ZZ,3,3,[1,0,1,1,0,0,0,0,1]) > show(W) > show(M) > show(M.restrict(W)) > > The fix is simple > def restrict_right(W): > return (W.transpose().restrict(W)).transpose() > > I guess the same assumptions are made for restrict_domain and > restrict_codomain > > V=VectorSpace(QQ,3) > W=V.subspace_with_basis([[0,1,0],[1,1,0]]) > M=matrix(ZZ,3,3,[1,0,1,1,0,0,0,0,1]) > > show(W) > show(M) > show(M.restrict(W)) -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] matrix restrict only works with row vectors.
The following code breakes with ArithmeticError: subspace is not invariant under matrix since sage assumes that vectors are left vectors. However there is no restrict_right nor restrict_left methods. V=VectorSpace(QQ,3) W=V.subspace_with_basis([[0,1,0],[1,1,0]]) M=matrix(ZZ,3,3,[1,0,1,1,0,0,0,0,1]) show(W) show(M) show(M.restrict(W)) The fix is simple def restrict_right(W): return (W.transpose().restrict(W)).transpose() I guess the same assumptions are made for restrict_domain and restrict_codomain V=VectorSpace(QQ,3) W=V.subspace_with_basis([[0,1,0],[1,1,0]]) M=matrix(ZZ,3,3,[1,0,1,1,0,0,0,0,1]) show(W) show(M) show(M.restrict(W)) -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: forgot sagenb password
That works. Thanks!! On Sep 30, 12:30 pm, William Stein wrote: > On Wed, Sep 30, 2009 at 10:03 AM, adrian wrote: > > > My login is adrianmatematico and I changed my password some time ago, > > and I cannot remember it. Is there a way to reset or recover it? > > That's not easy for me to do yet. However, what I can do trivially is make > > http://sage.math.washington.edu/home/wstein/tmp/adrianmatematico.tar.bz2 > > which is an archive that has files > adrianmatematico/number/worksheet.txt which are your worksheets. I > can probably change your password later but you would have to wait. > In the meantime perhaps you can make a new account. > > William --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] forgot sagenb password
My login is adrianmatematico and I changed my password some time ago, and I cannot remember it. Is there a way to reset or recover it? Thank you. -Adrián. --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Adding the need for the ttf-jsmath package in the FAQ
I use ubuntu Jaunty in an eee-pc 1000, and had a hard time making the notebook look right. I was aware that doing sudo apt-get install jsmath would solve the problem, but it didn't, since the equations were not properly display. I also had the package jsmath-fonts installed, but it did not make the equations look right. doing sudo apt-get install ttf-jsmath did solve the problem. This is somewhere in the net, but I think it should go in the FAQ. Thank you. -Adrian. --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Printing a worksheet with plots does not work
I was reading some newsgroops and apparently it happens for a second user, not for the regular user. I switched to opera and now everything works. Sage is not at fault. Plus, the jmol applet now works in ubuntu64! I ran sage with export SAGE_BROWSER=opera I can print now. Even pages with plots. -Adrian On Apr 5, 2:32 am, adrian wrote: > I think the problem is myfirefox: I could not even print the google > page; same problem happened. I have no idea why; I could print some > pages with graphics, but not others. The problem is not sage, for > sure. > > I am sorry about the post. > > Sage is innocent. > > Adrian. > > On Apr 5, 2:18 am, adrian wrote: > > > > > I did click in the print icon in the middle of the worksheet, and then > >firefoxopened a page where everything looks fine. > > > But when I try to print this latter one -from thefirefoxmenu- either > > to a file or directly the plots don't show. > > > I use ubuntu64 hardy heron. I ran the notebook with > > sage -notebook -directory="/home/soto/Dropbox/sagestuff" > > > The problem also happens if I run sage online, so probably the problem > > is infirefox, not in sage. Is there a way to know? > > > I don't have this problem in my desktop (ubuntu32 intrepid running the > > program in the normal mode). > > > This is a mystery to me. > > > Thanks. > > -Adrian. > > > On Apr 4, 11:38 am, William Stein wrote: > > > > On Sat, Apr 4, 2009 at 9:59 AM, adrian > > > wrote: > > > > > Hi, > > > > > I don't know if I am doing something wrong, but if a worksheet has a > > > > command like > > > > > show(plot(cos(x),x,-3,3)) > > > > > And then I try to print (say to a file), the output shows nothing > > > > starting at the plot. > > > > *Precisely* how are you "trying to print"? Do you click on the Print > > > icon at the top middle of the sage worksheet first? > > > > > Any ideas? > > > > Am I the only one? > > > > > Peace. > > > > -Adrian. > > > > -- > > > William Stein > > > Associate Professor of Mathematics > > > University of Washingtonhttp://wstein.org --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Printing a worksheet with plots does not work
I think the problem is my firefox: I could not even print the google page; same problem happened. I have no idea why; I could print some pages with graphics, but not others. The problem is not sage, for sure. I am sorry about the post. Sage is innocent. Adrian. On Apr 5, 2:18 am, adrian wrote: > I did click in the print icon in the middle of the worksheet, and then > firefox opened a page where everything looks fine. > > But when I try to print this latter one -from the firefox menu- either > to a file or directly the plots don't show. > > I use ubuntu64 hardy heron. I ran the notebook with > sage -notebook -directory="/home/soto/Dropbox/sagestuff" > > The problem also happens if I run sage online, so probably the problem > is in firefox, not in sage. Is there a way to know? > > I don't have this problem in my desktop (ubuntu32 intrepid running the > program in the normal mode). > > This is a mystery to me. > > Thanks. > -Adrian. > > On Apr 4, 11:38 am, William Stein wrote: > > > On Sat, Apr 4, 2009 at 9:59 AM, adrian wrote: > > > > Hi, > > > > I don't know if I am doing something wrong, but if a worksheet has a > > > command like > > > > show(plot(cos(x),x,-3,3)) > > > > And then I try to print (say to a file), the output shows nothing > > > starting at the plot. > > > *Precisely* how are you "trying to print"? Do you click on the Print > > icon at the top middle of the sage worksheet first? > > > > Any ideas? > > > Am I the only one? > > > > Peace. > > > -Adrian. > > > -- > > William Stein > > Associate Professor of Mathematics > > University of Washingtonhttp://wstein.org --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Printing a worksheet with plots does not work
I did click in the print icon in the middle of the worksheet, and then firefox opened a page where everything looks fine. But when I try to print this latter one -from the firefox menu- either to a file or directly the plots don't show. I use ubuntu64 hardy heron. I ran the notebook with sage -notebook -directory="/home/soto/Dropbox/sagestuff" The problem also happens if I run sage online, so probably the problem is in firefox, not in sage. Is there a way to know? I don't have this problem in my desktop (ubuntu32 intrepid running the program in the normal mode). This is a mystery to me. Thanks. -Adrian. On Apr 4, 11:38 am, William Stein wrote: > On Sat, Apr 4, 2009 at 9:59 AM, adrian wrote: > > > Hi, > > > I don't know if I am doing something wrong, but if a worksheet has a > > command like > > > show(plot(cos(x),x,-3,3)) > > > And then I try to print (say to a file), the output shows nothing > > starting at the plot. > > *Precisely* how are you "trying to print"? Do you click on the Print > icon at the top middle of the sage worksheet first? > > > > > Any ideas? > > Am I the only one? > > > Peace. > > -Adrian. > > -- > William Stein > Associate Professor of Mathematics > University of Washingtonhttp://wstein.org --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Printing a worksheet with plots does not work
Hi, I don't know if I am doing something wrong, but if a worksheet has a command like show(plot(cos(x),x,-3,3)) And then I try to print (say to a file), the output shows nothing starting at the plot. Any ideas? Am I the only one? Peace. -Adrian. --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: maximum recursion depth exceeded in cmp
This is a dirty solution, but it might be interesting:
It is possible to implement "tail recursion"; this would solve the
problem for certain kinds of recursion; but will fail if the call is
not a tail call, and I think this code won't work, but some variations
would...
I toss it as an idea:
The code is taken from http://code.activestate.com/recipes/474088
import sys
class TailRecurseException:
def __init__(self, args, kwargs):
self.args = args
self.kwargs = kwargs
def tail_call_optimized(g):
"""
This function decorates a function with tail call
optimization. It does this by throwing an exception
if it is it's own grandparent, and catching such
exceptions to fake the tail call optimization.
This function fails if the decorated
function recurses in a non-tail context.
"""
def func(*args, **kwargs):
f = sys._getframe()
if f.f_back and f.f_back.f_back \
and f.f_back.f_back.f_code == f.f_code:
raise TailRecurseException(args, kwargs)
else:
while 1:
try:
return g(*args, **kwargs)
except TailRecurseException, e:
args = e.args
kwargs = e.kwargs
func.__doc__ = g.__doc__
return func
@tail_call_optimized
def factorial(n, acc=1):
"calculate a factorial"
if n == 0:
return acc
return factorial(n-1, n*acc)
print factorial(1)
prints a big, big number,
but doesn't hit the recursion limit.
@tail_call_optimized
def fib(i, current = 0, next = 1):
if i == 0:
return current
else:
return fib(i - 1, next, current + next)
print fib(1)
also prints a big number,
but doesn't hit the recursion limit.
@tail_call_optimized
def say(something):
print something
say(something)
say('hello')
If I remember correctly, this code breaks and hangs the computer if
the tail is not a tail call; but there seems to be other solutions in
http://code.activestate.com/recipes/474088 that solve this problem
I would love if sage included a similar decorator; but am not sure of
the implications.
Another alternative is rewriting your code... to use iterations
instead of recursion whenever possible.
Peace.
-Adri'an.
On Mar 26, 6:24 am, agi wrote:
> Hi,
> I have a recursive algorithm that works well if it doesn't need more
> than 5637 iterations.
> In the case of more than 5637 iterations the error message is:
> RuntimeError: maximum recursion depth exceeded in cmp
>
> Is there a way to make SAGE execute it for more than 5637 iterations?
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[sage-support] Re: Bug in plot?
Yes, that solved it. I don't understand what happened. After saving, quitting and doing it again, all problems were solved. Thanks. On Mar 18, 2:11 pm, "ma...@mendelu.cz" wrote: > On 18 Bře, 20:23, adrian wrote: > > > If i try to do > > plot(cos(x),(x,-3,3)) > > This command works in Internet versionwww.sagenb.org > The same for sphere() > > Maybe something hangs from previous computation? Did the restart of > worksheet not help? > > Robert > > > in sage 3.4 (through the internet version) > > it brakes with the message > > TypeError: a float is required > > > The command worked in sage 3.3 > > > Also, in the notebook > > > sphere() > > > produces nothing; but > > (sphere()).show() > > launches the jmol applet as desired. > > > I don't know if that is the desired behaviour (It wasn't like that in > > sage 3.3) --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Bug in plot?
If i try to do plot(cos(x),(x,-3,3)) in sage 3.4 (through the internet version) it brakes with the message TypeError: a float is required The command worked in sage 3.3 Also, in the notebook sphere() produces nothing; but (sphere()).show() launches the jmol applet as desired. I don't know if that is the desired behaviour (It wasn't like that in sage 3.3) --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: 3D plots side by side
I don't know about the plots. To have interact evaluate when you say so, just add auto_update=False as in the example below: @interact def f(a='G',b=(1,2,.1),c=True,u = text_control (value='cow'),d=xsrange(1,50),auto_update=False,f=range(5),g=range (20),h=matrix(ZZ,2,2,[1,2,3,4]),i=3): pass On Mar 13, 4:32 am, Mani chandra wrote: > Hi, > > How can I get 3D plots side by side? Also when using interact for > sliders, how do I make it such that the evaluation is done after maybe I > press some button instead of it being evaluated immediately after I > change a value on the slider? > > Thanks > Mani chandra --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: attach works in command line but not in notebook
I am sorry, I read it wrong; you are indeed giving the full path.
Something I was thinking is that it could be related to what happens,
in addition to what others have commented is:
1) The error is "Syntax error" not "File not found", so maybe the
quotes arround the path would work.
2) The file is in /media/... Does it work with other files in other
directories? With .sage files?
3) Can you attach a file in ~/.sage?
Well, I hope this is fixed. Or just changing the extension, as
Marshal suggested, should work. This would explain the Syntax Error.
-Adrian.
On Feb 7, 6:37 am, ricardomayerb wrote:
> Thank you, Adrian.
>
> But I think I gave the full path when I used the command:
>
> attach /media/disk/thesiswork/thesis2009/sage/src/sympy_files/
> thesis_sympy_2009.py
>
> but it did not worked in notebook mode (but happens to work perfectly
> in command-line mode, I just tried it)
>
> Maybe the way to go, for now, is your suggestion of invoking sage with
> this -notebook directory option
>
> Best,
> R
>
> On Feb 6, 3:52 pm, adrian wrote:
>
> > You need to give the full path if you are in the notebook.
> > If you strongly need to not to give the full path you could run the
> > command
> > $mkdir (where your files are)/sagenotebook
> > $sage -notebook directory="Where your files are/sagenotebook"
>
> > The disadvantage is that this will create another server, and you
> > won't be able to see the worksheets you had in .sage/notebook
>
> > this was the discussion
> > inhttp://groups.google.com/group/sage-support/browse_thread/thread/3779...
>
> > This kind of behaviour is the reason for the ticket
> > inhttp://trac.sagemath.org/sage_trac/ticket/5169
>
> > Hope this helps
>
> > -Adrian.
>
> > On Feb 6, 10:40 am, ricardomayerb wrote:
>
> > > Dear all,
>
> > > I'm trying to attach a python script. I'm probably doing somethign
> > > wrong, but the weird thing is that what I do works for the command
> > > line but not from the notebook. Let me show you.
>
> > > This works:
> > > --
> > > | Sage Version 3.2.3, Release Date: 2009-01-05 |
> > > | Type notebook() for the GUI, and license() for information. |
> > > --
> > > sage: os.getcwd()
> > > '/home/ricardo/sage-3.2.2'
> > > sage: os.chdir('/media/disk/thesiswork/thesis2009/sage/src/
> > > sympy_files')
> > > sage: os.getcwd
> > > ()
> > > '/media/disk/thesiswork/thesis2009/sage/src/sympy_files'
> > > sage: attach thesis_sympy_2009.py
>
> > > So no problem there.
>
> > > but this doesn't:
>
> > > sage: notebook()
> > > The notebook files are stored in: /home/ricardo/.sage//sage_notebook
>
> > > os.chdir('/media/disk/thesiswork/thesis2009/sage/src/sympy_files')
>
> > > attach thesis_sympy_2009.py
> > > --->Error attaching /home/ricardo/.sage/thesis_sympy_2009.py -- file
> > > not
> > > found
>
> > > os.getcwd()
> > > --->'/home/ricardo/.sage/sage_notebook/worksheets/admin/4/cells/3'
>
> > > ...so obviously os.chdir didn't change the dir where the notebook
> > > looks for files (mybe is not supposed to...). Thus, I tried using an
> > > absolute path instead:
>
> > > attach /media/disk/thesiswork/thesis2009/sage/src/sympy_files/
> > > thesis_sympy_2009.py
> > > ---> Syntax Error:
> > > attach
> > > /media/disk/thesiswork/thesis2009/sage/src/sympy_files/
> > > thesis_sympy_2009\
> > > .py
>
> > > how could I use absolute paths with attach inside a notebook? Is there
> > > a workaround?
>
> > > I also tried setting the variable DIR to /media/disk/thesiswork/
> > > thesis2009/sage/src/sympy_files/ and then using attach
> > > thesis_sympy_2009.py but it didn't work either
>
> > > thanks in advance for your help
>
> > > Ricardo
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[sage-support] Re: attach works in command line but not in notebook
You need to give the full path if you are in the notebook.
If you strongly need to not to give the full path you could run the
command
$mkdir (where your files are)/sagenotebook
$sage -notebook directory="Where your files are/sagenotebook"
The disadvantage is that this will create another server, and you
won't be able to see the worksheets you had in .sage/notebook
this was the discussion in
http://groups.google.com/group/sage-support/browse_thread/thread/37795251481402a1/552ac0654c85f4ec?lnk=gst&q=attach#552ac0654c85f4ec
This kind of behaviour is the reason for the ticket in
http://trac.sagemath.org/sage_trac/ticket/5169
Hope this helps
-Adrian.
On Feb 6, 10:40 am, ricardomayerb wrote:
> Dear all,
>
> I'm trying to attach a python script. I'm probably doing somethign
> wrong, but the weird thing is that what I do works for the command
> line but not from the notebook. Let me show you.
>
> This works:
> --
> | Sage Version 3.2.3, Release Date: 2009-01-05 |
> | Type notebook() for the GUI, and license() for information. |
> --
> sage: os.getcwd()
> '/home/ricardo/sage-3.2.2'
> sage: os.chdir('/media/disk/thesiswork/thesis2009/sage/src/
> sympy_files')
> sage: os.getcwd
> ()
> '/media/disk/thesiswork/thesis2009/sage/src/sympy_files'
> sage: attach thesis_sympy_2009.py
>
> So no problem there.
>
> but this doesn't:
>
> sage: notebook()
> The notebook files are stored in: /home/ricardo/.sage//sage_notebook
>
> os.chdir('/media/disk/thesiswork/thesis2009/sage/src/sympy_files')
>
> attach thesis_sympy_2009.py
> --->Error attaching /home/ricardo/.sage/thesis_sympy_2009.py -- file
> not
> found
>
> os.getcwd()
> --->'/home/ricardo/.sage/sage_notebook/worksheets/admin/4/cells/3'
>
> ...so obviously os.chdir didn't change the dir where the notebook
> looks for files (mybe is not supposed to...). Thus, I tried using an
> absolute path instead:
>
> attach /media/disk/thesiswork/thesis2009/sage/src/sympy_files/
> thesis_sympy_2009.py
> ---> Syntax Error:
> attach
> /media/disk/thesiswork/thesis2009/sage/src/sympy_files/
> thesis_sympy_2009\
> .py
>
> how could I use absolute paths with attach inside a notebook? Is there
> a workaround?
>
> I also tried setting the variable DIR to /media/disk/thesiswork/
> thesis2009/sage/src/sympy_files/ and then using attach
> thesis_sympy_2009.py but it didn't work either
>
> thanks in advance for your help
>
> Ricardo
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[sage-support] showing the answer of solve in the notebook.
If, in the notebook one writes:
a,b,c,d,n=var('a b c d n')
solve([a*d-b*c==1,a*d/(a*d - b*c) - c*(a*n + b)/(a*d - b*c)==1,c*d/
(a*d - b*c) - c*(c*n + d)/(a*d - b*c)==0, a*(c*n + d)/(a*d - b*c) -b*c/
(a*d - b*c)==1],a,b,c,d)
sage does not return anything.
if one does, instead
a,b,c,d,n=var('a b c d n')
r=solve([a*d-b*c==1,a*d/(a*d - b*c) - c*(a*n + b)/(a*d - b*c)==1,c*d/
(a*d - b*c) - c*(c*n + d)/(a*d - b*c)==0, a*(c*n + d)/(a*d - b*c) -b*c/
(a*d - b*c)==1],a,b,c,d)
print(r) #show(r) also works
Then sage does return
[
[a == 1/r14, b == r13, c == 0, d == r14]
]
(The answer has two degrees of freedom...)
This behavior is different than
solve([a*x+b*n==c,c*x+d*n==e],x,n)
which does display the answer without first assigning and then showing
the answer.
In the console, sage has no problem in giving the answer for both.
Thanks, and I think SAGE is a wonderful program.
-Adrian.
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[sage-support] Re: attaching files that attach other files in the notebook
Thanks! I tried also to make a folder .sage inside of PROGRAMS, and, inside of sage session: notebook(directory=PROGRAMS/.sage) this way I can attach files inside of programs just by doing attach file.sage. The problem, as you mentioned above is that it cannot see the other worksheets inside of ~/.sage, and one sets another password... The proposal in the ticket would certainly solve this. Thanks a bunch. -Adrian. On Feb 3, 4:30 pm, William Stein wrote: > On Tue, Feb 3, 2009 at 3:12 PM, adrian wrote: > > > I just changed all to absolute paths, and called the file using an > > absolute path. It works now. So I guess I made a mistake earlier. > > So, I guess there are no bugs in attach. > > > Still, this is not a good solution to me, since that would force me to > > modify all the files if I move the directory around, or change from > > one computer to a different one. The best solution I did was to do the > > symlinks to .sage. > > > I still don't understand what happens if I change the DIR variable. > > > Thanks. I guess my wish is to be able to change the working > > directory, at least for files that are attached. > > > Thanks a bunch. > > I made a ticket that I think would accomplish this: > > http://trac.sagemath.org/sage_trac/ticket/5169 --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: attaching files that attach other files in the notebook
I just changed all to absolute paths, and called the file using an absolute path. It works now. So I guess I made a mistake earlier. So, I guess there are no bugs in attach. Still, this is not a good solution to me, since that would force me to modify all the files if I move the directory around, or change from one computer to a different one. The best solution I did was to do the symlinks to .sage. I still don't understand what happens if I change the DIR variable. Thanks. I guess my wish is to be able to change the working directory, at least for files that are attached. Thanks a bunch. On Feb 3, 3:25 pm, William Stein wrote: > On Tue, Feb 3, 2009 at 12:28 PM, Nathan Carter > wrote: > > > Does the directory argument to notebook() do what you want? (See > > notebook? for more info.) > > That makes a completely separate sage notebook server whose local files > are stored in the given directory. > > Michael Abshoff: > > > This sounds like a bug in attach to me, i.e. attach with an absolute > > path should not prepend $DOT_SAGE. Should be easy enough to fix. > > I agree that this sounds like a bug in attach. > > William --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] attaching files that attach other files in the notebook
I have a folder PROGRAMS where I have two files: substitutions.sage and morphisms.sage The first line in substitutions.sage is attach morphisms.sage This works well if I cd into PROGRAMS and then run sage. This way I can do sage: attach substitution.sage and everything works as expected. This is my prefered way to edit files (I edit in Emacs, and everything works fine), and I can move the directory around. However, If I want to use the notebook, it uses by default the directory ~/.sage, and I don't know of a way to change that. I tried changing the value of DIR with no success. I tried giving the complete path, but it always prepends ~/.sage/ to the file morphism.sage. Giving the full path in morphism.sage does not work either, since it prepends ~/.sage/ to the path. I tried changing it using ../../ but this breaks the behavior I want to edit files using a text editor and the console. I guess I can do a symlink into .sage, but I guess there should be a nicer solution. Any ideas? Thanks. -Adrian. --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Using jmol without the java applet in a worksheet.
That did it!!! Thanks!! -Adrian. On Jan 23, 2:49 pm, Robert Bradshaw wrote: > On Jan 23, 2009, at 11:06 AM, adrian wrote: > > > Is there a way in a worksheet to display a 3d plot using jmol without > > the applet; i.e., not embedded, but using the usual java; as it does > > if one used the terminal. > > You can set sage.plot.plot.EMBEDDED_MODE = False, but that might have > other side effect too. Note this only works if you're runnign the > server locally. > > - Robert --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Using jmol without the java applet in a worksheet.
Is there a way in a worksheet to display a 3d plot using jmol without the applet; i.e., not embedded, but using the usual java; as it does if one used the terminal. --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: The image of a matrix
I think the following is also a source of frustration:
v=vector([1,2,3])
rm=matrix(v)#This will be a row matrix
cm=v.transpose()#This will be a column matrix.
What would the convention be for this one? This came up in another
discussion:
http://groups.google.com/group/sage-support/browse_thread/thread/24fa62276520b799/2ba996a4f9d18545?hl=en&lnk=gst&q=vector+to+matrix#2ba996a4f9d18545
Keep the good work.
On Dec 14, 3:48 am, mabshoff wrote:
> On Dec 14, 2:44 am, daveloeffler wrote:
>
>
>
> > That
>
> > On Dec 13, 6:50 pm, Jason Grout wrote:
>
> > > That sounds the best way. We'll make kernel_left/right (along with
> > > left/right_kernel) the global functions, and people can do
>
> > > kernel = left_kernel
>
> > > in their init.sage or at the beginning of their session, if they want.
>
> > \begin{devils-advocate}
> > That's inviting people to write code which will then silently and
> > mysteriously not work as soon as they pass it on to someone else.
> > \end{devils-advocate}
>
> > David
>
> Yes, people will do dumb things if they are given a chance, but at
> least it will not be code in the Sage library that causes any more
> trouble. I guess someone has to get burned a couple times to realize
> that customization can be evil. If this happens a lot it won't be long
> before we ask bug submitters to provide their init.sage along with the
> code in question that causes trouble.
>
> Cheers,
>
> Michael
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[sage-support] Re: How do I create a matrix whose elements are functions of the row & column indices?
I think the order of the i and j is transposed (assuming row i and column j): sage: M = matrix(5,5,[[1/(i+j%2) for j in range(1,6)] for i in range (1,6)]) sage: M [1/2 1 1/2 1 1/2] [1/3 1/2 1/3 1/2 1/3] [1/4 1/3 1/4 1/3 1/4] [1/5 1/4 1/5 1/4 1/5] [1/6 1/5 1/6 1/5 1/6] s M = matrix(5,5,[[1/(i+j%2) for j in range(1,6)] for i in range(1,6)]) On Dec 10, 4:24 pm, "David Joyner" <[EMAIL PROTECTED]> wrote: > One way to do it (for a 10x10): > > sage: n = 10 > sage: M = Matrix(n,n,[[1/(i+j) for i in range(1,11)] for j in range(1,11)]) > sage: M > > [ 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11] > [ 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12] > [ 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13] > [ 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14] > [ 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14 1/15] > [ 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14 1/15 1/16] > [ 1/8 1/9 1/10 1/11 1/12 1/13 1/14 1/15 1/16 1/17] > [ 1/9 1/10 1/11 1/12 1/13 1/14 1/15 1/16 1/17 1/18] > [1/10 1/11 1/12 1/13 1/14 1/15 1/16 1/17 1/18 1/19] > [1/11 1/12 1/13 1/14 1/15 1/16 1/17 1/18 1/19 1/20] > > On Wed, Dec 10, 2008 at 5:19 PM, Alasdair <[EMAIL PROTECTED]> wrote: > > > The title pretty much says it all - for example, how would I create a > > 4x4 matrix whose (i,j)-th element is 1/(i+j)? > > > Thanks, > > Alasdair --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@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-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] A limit question.
sage: limit(x*0,x=oo) 0 sage: limit(x*oo,x=0) 0 This seems wrong to me; and probably the problem is that x*oo should not be allowed to begin with... -Adrian. --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@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-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] questions about types.
In the following code: sage: x=CC['x'].gen() sage: type(x) sage: f(x)=sin(x) sage: type(x) Is this intended? --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@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-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Error when launching Sage
I got the same problem. In ubuntu amd 64 hardy, I got the following missing: pebs ssse3 pge clflush sep syscall vme tsc est vmx xtpr nx constant_tsc pat bts lm msr fpu fxsr tm pae arch_perfmon acpi cx8 mce de mca pse rep_good ht apic dca monitor lahf_lm tm2 ss ds_cpl pbe cx16 pse36 mtrr dts shall I do something? -Adrian. On Nov 28, 12:57 pm, Jeffrey Straszheim <[EMAIL PROTECTED]> wrote: > That appears to have worked. > > Thank you. > > > > > You have hit a bug introduce by accident via #3761. > > > Edit the file $SAGE_ROOT/local/lib/sage-flags.txt and remove the "nx" > > and "up" flag. > > Cheers, > > > Michael --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@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-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: sage and tkinter?
I came accross the same thing a while ago. In the post "GUI for sage" http://groups.google.com/group/sage-support/browse_thread/thread/6cea70d6be0436fa/582b7f836eee9816?lnk=gst&q=tk#582b7f836eee9816 , William Stein suggested the following: (1) Make sure you've installed the tk devel package.it's called tk8.4-dev under Ubuntu.(Make sure the tk version is at least 8.3.) (2) Make sure SAGE's Python has Tk support included. It will if you built Python yourself and already had tk8.0-dev installed. Otherwise, you'll have to rebuild the Python interpreter included in SAGE: sage -i sage -f python-2.5.1.p3 Here I got the version number as the latest Python package listed at SAGE_ROOT/spkg/installed. One could also look at http://sagemath.org/packages/standard/ I think the order of the last command is wrong, though, it should be: sage -f -i python-2.5.2.p8 (at least with the latest version of the packages) Hope this helps. -Adrian On Dec 3, 9:11 am, Jaap Spies <[EMAIL PROTECTED]> wrote: > David Joyner wrote: > > System wide, it works fine: > > For me it works: > > -- > | Sage Version 3.2.1, Release Date: 2008-12-01 | > | Type notebook() for the GUI, and license() for information.| > -- > > sage: import Tkinter > > sage: import _tkinter > > sage: > > Jaap --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@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-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: java plugin for ubuntu 8.04 on amd64
Thanks a lot. -Adrian On Nov 7, 3:19 am, Pablo Angulo <[EMAIL PROTECTED]> wrote: > > Hm I can give it a try. As a work around, is it possible to have > > the behaviour of jmol so that instead of being embeded in the webpage > > as an applet it launches it as it normally would? > > In Intrepid, the icedtea plugin does not work either. I've heard you can > install the sun java plugin if you install a 32bit firefox: > > http://ubuntuforums.org/showthread.php?p=1174435 > > However, if you use the TeXmacs session, and write for example: > > g=sphere() > show(g) > > a jmol window pops up and works ok with the openjdk. > > Regards > Pablo --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@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-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: java plugin for ubuntu 8.04 on amd64
Hm I can give it a try. As a work around, is it possible to have the behaviour of jmol so that instead of being embeded in the webpage as an applet it launches it as it normally would? Thanks. -Adrian. On Nov 6, 7:13 pm, Dan Drake <[EMAIL PROTECTED]> wrote: > On Thu, 06 Nov 2008 at 04:42PM -0800, adrian wrote: > > I have tried to find the plugin, and apparently the only one available > > is the iced tea one, but the jmol applet does not work with it. > > There may not be any solution except to install the Intrepid version, > which I think does work -- the problem, I think, is that the plugin > doesn't support "LiveConnect". Looking at LP207064 [1], you might want > to try loading this applet: > > http://developer.apple.com/internet/safari/samples/ColorBlockApplet.html > > if LiveConnect is the problem, I'm guessing that won't work. The bug > report has some suggestions for new versions to try installing. > > Dan > > 1.https://bugs.launchpad.net/ubuntu/+source/icedtea-gcjwebplugin/+bug/2... > -- > --- Dan Drake <[EMAIL PROTECTED]> > - KAIST Department of Mathematical Sciences > --- http://mathsci.kaist.ac.kr/~drake > > signature.asc > < 1KViewDownload --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@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-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] java plugin for ubuntu 8.04 on amd64
I have tried to find the plugin, and apparently the only one available is the iced tea one, but the jmol applet does not work with it. Any ideas? --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@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-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: display 3d graphics in TeXmacs sage plugin
sage: var('x,y')
sage: plot3d(sin(x*y),(x,-1,1),(y,-1,1)).show()
This launches jmol, and one is able to rotate the shape. One can also
save the image and then import the saved image into Texmacs
sage: var('x,y')
sage: plot3d(sin(x*y),(x,-1,1),(y,-1,1)).show(viewer='tachyon')
launches a viewer (eog) of a file in format png. one can also save and
then import.
However, the behaviour for 2d plots is nice in that it immediatly
includes it in the text.
On Oct 21, 7:45 pm, DJDANG <[EMAIL PROTECTED]> wrote:
> TeXmacs allows to plot 2D graphics but when I try to plot any 3D
> object it just shows "Graphics3D Object", so I gess TeXmacs doesn't
> support sage 3D plotting.
> Anyway thanks for the help.
>
> On 20 oct, 09:55, "William Stein" <[EMAIL PROTECTED]> wrote:
>
> > On Mon, Oct 20, 2008 at 6:26 AM, DJDANG <[EMAIL PROTECTED]> wrote:
>
> > > Hi everyone, I'm having trouble trying to display 3D graphic objects
> > > made with sage onTeXmacs. Everytime I try to plot any kind of 3D
> > > object, it just says "Graphics3D Object" and that's it, nothing else
> > > show up.
> > > Please anyone who knows how this works give some advise or some other
> > > option to use.
>
> > Thetexmacs/sage interface was written by Mike Hansen before
> > Sage had any 3D plotting, so I suspect it doesn't at all support
> > it. That said, two questions:
> > (1) does 2D plotting work?
> > (2) What happens if you do
> > sage: var('x,y')
> > sage: plot3d(sin(x*y),(x,-1,1),(y,-1,1)).show()
> > (3) What if you do
> > sage: var('x,y')
> > sage: plot3d(sin(x*y),(x,-1,1),(y,-1,1)).show(viewer='tachyon')
>
> > > Thanks in advance,
> > > Daniel
>
> > --
> > William Stein
> > Associate Professor of Mathematics
> > University of Washingtonhttp://wstein.org
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[sage-support] Re: Memoizing methods.
That is exactly what I wanted. Thanks!!! -Adrian. On Sep 3, 7:31 pm, "Mike Hansen" <[EMAIL PROTECTED]> wrote: > Hi Adrian, > > I wrote some code to do this a few releases ago. It's the > cached_method decorator in Sage. Here's your example: > > sage: class dog(): > : def __init__(self, bark='guau'): > : self._bark = bark > : @cached_method > : def bark(self): > : sleep(5) > : return (self._bark + " ")*3 > : > sage: sparky = dog() > sage: sparky.bark() #5 seconds > 'guau guau guau ' > sage: sparky.bark() #instant > 'guau guau guau ' > > If you're curious, you can find the code in sage/misc/cachefunc.py > > --Mike --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@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-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Memoizing methods.
I guess this is more like a Python question, but I guess it would be
very useful for speeding up some computations in sage. I took the
definition for the Memoize class from the net, but does not quite work
as I want for methods.
Consider the following:
class Memoize:
"""Memoize(fn) - an instance which acts like fn but memoizes its
arguments
Will only work on functions with non-mutable arguments; since it
uses
the arguments as keys for a dictionary, and hence the keys need
to be
hashable.
"""
def __init__(self, fn):
self.fn = fn
self.memo = {}
def __call__(self, *args):
if args not in self.memo:
self.memo[args] = self.fn(*args)
return self.memo[args]
class dog():
def __init__(self,bark='guau'):
self.bark=bark
@Memoize
def bark(self):
sleep (5)
return bark+' '+bark+' '+bark
sparky=dog()
The only way to run the above example is sparky.bark(sparky) or
dog.bark(sparky), since sparky.bark() does not work. Removing the
decorator, sparky.bark() works but takes 5 seconds everytime, unlike
the Memoized version.
Is there a way to have a version of Memoize that behaves nicely with
methods? A redirection to the appropriate page or documentation is
also ok.
Thanks.
Peace.
-Adrian.
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[sage-support] Re: Bugs in DiGraph ?
I don't have a track account. Maybe some day I'll take a look at the
code...
Thanks.
-Adrian.
On Aug 25, 10:39 pm, adrian <[EMAIL PROTECTED]> wrote:
> The example they gave would be enough:
>
> For a digraph with multiple edges and labels, one must provide a list
> within the dictionary:
>
> sage: G=DiGraph({1:{1:['hola','hi'], 2:['two','dos']},2:{1:['one']}},
> loops=True, multiedges=True)
> sage: G.edges()
> [(1, 1, 'hi'), (1, 1, 'hola'), (1, 2, 'dos'), (1, 2, 'two'), (2, 1,
> 'one')]
>
> This would be enough, but I think that somewhere in the code there
> would be something like:
> for i in l:
>
> and the code assumes that l is a list. But if someone does what I did
> and passes a string, the code still works, but has the behavior I
> saw. It would be good to do a checkup like
>
> If type(l)<>list: print "please type a list"; raise "error"...
>
> But I am happy if it gets into the documentation, which is where I
> would look for.
>
> Thank you.
>
> -Adrian.
>
> On Aug 25, 8:46 am, Jason Grout <[EMAIL PROTECTED]> wrote:
>
> > adrian wrote:
> > > I now get it, when I said {1:{1:'hola'}... it understood {1:
> > > {1:list('hola') and hence treated hola as a list.
>
> > > I don't recall reading that one should input as a list if one selects
> > > multiedges, at least I don't recall seeing an example with that
> > > notation. This is, I think a little bit of a tricky thing, since the
> > > notation works for regular graphs.
>
> > > At least I know what to do now. But I don't know if the behavior here
> > > is intended. Probably it works like that to have a short way of
> > > entering several edges with one level. Or the authors did not intend
> > > it to work that way, in which case it could be fixed.
>
> > > One example with that behavior in the documentation would be great.
>
> > > Thanks a bunch.
> > > -Adrian.
>
> > Do you have a trac account? Would you like to post an example you think
> > makes the documentation clearer? If you don't have a trac account, you
> > can get one by emailing mabshoff (see the instructions
> > onhttp://wiki.sagemath.org/TracGuidelines) or you can just reply here and
> > give the input and output of a command to go into the EXAMPLES section
> > of the documentation. You can precede that command with an explanation,
> > too.
>
> > Thanks,
>
> > Jason
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[sage-support] Re: Bugs in DiGraph ?
The example they gave would be enough:
For a digraph with multiple edges and labels, one must provide a list
within the dictionary:
sage: G=DiGraph({1:{1:['hola','hi'], 2:['two','dos']},2:{1:['one']}},
loops=True, multiedges=True)
sage: G.edges()
[(1, 1, 'hi'), (1, 1, 'hola'), (1, 2, 'dos'), (1, 2, 'two'), (2, 1,
'one')]
This would be enough, but I think that somewhere in the code there
would be something like:
for i in l:
and the code assumes that l is a list. But if someone does what I did
and passes a string, the code still works, but has the behavior I
saw. It would be good to do a checkup like
If type(l)<>list: print "please type a list"; raise "error"...
But I am happy if it gets into the documentation, which is where I
would look for.
Thank you.
-Adrian.
On Aug 25, 8:46 am, Jason Grout <[EMAIL PROTECTED]> wrote:
> adrian wrote:
> > I now get it, when I said {1:{1:'hola'}... it understood {1:
> > {1:list('hola') and hence treated hola as a list.
>
> > I don't recall reading that one should input as a list if one selects
> > multiedges, at least I don't recall seeing an example with that
> > notation. This is, I think a little bit of a tricky thing, since the
> > notation works for regular graphs.
>
> > At least I know what to do now. But I don't know if the behavior here
> > is intended. Probably it works like that to have a short way of
> > entering several edges with one level. Or the authors did not intend
> > it to work that way, in which case it could be fixed.
>
> > One example with that behavior in the documentation would be great.
>
> > Thanks a bunch.
> > -Adrian.
>
> Do you have a trac account? Would you like to post an example you think
> makes the documentation clearer? If you don't have a trac account, you
> can get one by emailing mabshoff (see the instructions
> onhttp://wiki.sagemath.org/TracGuidelines) or you can just reply here and
> give the input and output of a command to go into the EXAMPLES section
> of the documentation. You can precede that command with an explanation,
> too.
>
> Thanks,
>
> Jason
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[sage-support] Re: Bugs in DiGraph ?
I now get it, when I said {1:{1:'hola'}... it understood {1:
{1:list('hola') and hence treated hola as a list.
I don't recall reading that one should input as a list if one selects
multiedges, at least I don't recall seeing an example with that
notation. This is, I think a little bit of a tricky thing, since the
notation works for regular graphs.
At least I know what to do now. But I don't know if the behavior here
is intended. Probably it works like that to have a short way of
entering several edges with one level. Or the authors did not intend
it to work that way, in which case it could be fixed.
One example with that behavior in the documentation would be great.
Thanks a bunch.
-Adrian.
On Aug 22, 9:55 pm, Jason Grout <[EMAIL PROTECTED]> wrote:
> Jason Grout wrote:
> > adrian wrote:
> >> Now, there is another problem:
>
> >> Say, I want to define a multigraph with selfloops, and edge labels..
> >> One way to do this is:
>
> >> import networkx
> >> G=networkx.XDiGraph(selfloops=True,multiedges=True)
> >> for i in range(3): G.add_node(i)
> >> for i in [(1,1,'hola'),(1,1,'hi'),(1,2,'two'),(1,2,'dos'),
> >> (2,1,'one')]: G.add_edge(i)
> >> G=DiGraph(G)
>
> >> Now, I would be tempted to just do the following:
> >> G=DiGraph({1:{1:'hola',1:'hi',2:'two',2:'dos'},2:{1:'one'}},
> >> loops=True, multiedges=True)
>
> >> or trying
>
> >> import networkx
> >> G=networkx.XDiGraph({1:{1:'hola',1:'hi',2:'two',2:'dos'},2:{1:'one'}},
> >> selfloops=True, multiedges=True)
>
> >> But in each case I get:
>
> >> G.edges()
>
> >> (1, 1, 'h'), (1, 1, 'i'), (1, 2, 'd'), (1, 2, 'o'), (1, 2, 's'), (2,
> >> 1,
> >> 'o'), (2, 1, 'n'), (2, 1, 'e')]
>
> >> Which is not as intended for two reasons: One is that the labels are
> >> wrong, and the other one is that it created three edges from 1 to 2.
>
> >> Any help?
>
> > It looks like it is creating an edge for every character in every other
> > label, which I think is a bug. I've created a ticket to track the
> > status of this bug:http://trac.sagemath.org/sage_trac/ticket/3928
>
> > Thanks for reporting it.
>
> As Robert Miller noted on the ticket, there is nothing wrong going on
> here. The correct way to create the graph that you want is:
>
> sage: G=DiGraph({1:{1:['hola','hi'], 2:['two','dos']},2:{1:['one']}},
> loops=True, multiedges=True)
> sage: G.edges()
> [(1, 1, 'hi'), (1, 1, 'hola'), (1, 2, 'dos'), (1, 2, 'two'), (2, 1, 'one')]
>
> Thanks,
>
> Jason
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[sage-support] Bugs in DiGraph ?
The following works nice:
G=Graph({0:[1,2],1:[2,3],2:[4]})
G.show()
But the following produces a wrong drawing
H=DiGraph({0:[1,2],1:[2,3],2:[4]})
H.show()
However, H.show3d() works fine
Now, there is another problem:
Say, I want to define a multigraph with selfloops, and edge labels..
One way to do this is:
import networkx
G=networkx.XDiGraph(selfloops=True,multiedges=True)
for i in range(3): G.add_node(i)
for i in [(1,1,'hola'),(1,1,'hi'),(1,2,'two'),(1,2,'dos'),
(2,1,'one')]: G.add_edge(i)
G=DiGraph(G)
Now, I would be tempted to just do the following:
G=DiGraph({1:{1:'hola',1:'hi',2:'two',2:'dos'},2:{1:'one'}},
loops=True, multiedges=True)
or trying
import networkx
G=networkx.XDiGraph({1:{1:'hola',1:'hi',2:'two',2:'dos'},2:{1:'one'}},
selfloops=True, multiedges=True)
But in each case I get:
G.edges()
(1, 1, 'h'), (1, 1, 'i'), (1, 2, 'd'), (1, 2, 'o'), (1, 2, 's'), (2,
1,
'o'), (2, 1, 'n'), (2, 1, 'e')]
Which is not as intended for two reasons: One is that the labels are
wrong, and the other one is that it created three edges from 1 to 2.
Any help?
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[sage-support] Re: online sage and vista.
Never mind. It works now. On Jul 5, 7:52 pm, adrian <[EMAIL PROTECTED]> wrote: > I don't know if this problem is common one: > > I was working in vista. It logged in into sage via the sage website. > > I had two 3d graphs of a sphere. > > Then java correctly showed me the one I was looking. > > But the second jmol appeared black. And it said: "script > terminated". > > Any ideas? > > Has the issue of jmol in ubuntu-hardy resolved by the way? > > Thanks a lot. > > -Adrian. --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@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-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] online sage and vista.
I don't know if this problem is common one: I was working in vista. It logged in into sage via the sage website. I had two 3d graphs of a sphere. Then java correctly showed me the one I was looking. But the second jmol appeared black. And it said: "script terminated". Any ideas? Has the issue of jmol in ubuntu-hardy resolved by the way? Thanks a lot. -Adrian. --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@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-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
