[sage-support] Re: numerically solving a polynomial system of equations
There is a matlab/octave interface to it. Look at the following reference on http://www.math.uic.edu/~jan/ I don't know more about this since I am also at the moment collecting information on how to solve a large system of polynomial equations. Yun Guan and Jan Verschelde: PHClab: A MATLAB/Octave interface to PHCpack. The abstract and paper . Take a look at the Poster. In IMA Volume 148: Software for Algebraic Geometry, edited by Michael E. Stillman, Nobuki Takayama, and Jan Verschelde. Pages 15-32, Springer- Verlag, 2008. Bhalchandra Thatte On Aug 24, 10:29 pm, mabshoff <[EMAIL PROTECTED] dortmund.de> wrote: > On Aug 24, 2:22 pm, "William Stein" <[EMAIL PROTECTED]> wrote: > > > On Sun, Aug 24, 2008 at 2:03 PM, Joshua Kantor <[EMAIL PROTECTED]> wrote: > > > > 1. I would recommend looking at phcpack, it is designed to exploit the > > > special nature of large polynomial systems, however, supposedly I > > > believe it is sometimes difficult to compile, I've never used it but > > > ^ > > > It is written in ADA. > > And building the GNU Ada compiler from sources is a giant pain unless > you have the GNU Ada compiler to bootstrap. I did build some phcpack > binaries for x86-64 Linux and it has a tendency to segfault when run > on say Debian if the binary was build on a FC8 box and vice versa. I > mainly wanted an Itanium binary, but cross compiling the ada toolchain > was just plainly not worth it for it. > > So in conclusion: great code if you can use a binary that works, if > you need to build from sources it plainly sucks. The lesson learned > here is not to use exotic languages since the (alleged) benefit from > using Ada is far outweight by the fact that the practicality of > building the code :) > > > > > William Stein > > Cheers, > > Michael > > > 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Page Load Error in Firefox, Using VMWare under Windows Vista
I cannot open http://localhost:8000 in firefox on vista. Anybody who has figured out what needs to be done, could you post the instructions. Thanks a lot! I am new to vista, vmware, ... So probably the following questions are silly AND not all sage specific. When I opened sage in vmware (by clicking on sage_vmx.vmx file), after logging in, what I got was a linux bash shell. A readme file suggested installing emacs with apt-get, so I looked at the sources.list, and to my surprise, I seem to be running Ubuntu! Does that mean the windows sage distribution comes with a regular Ubuntu in which I can install pretty much anything that I have in my normal Ubuntu? How should I copy a file created in vmware? where is it stored on my machine? can I access files on C: or other drives? How should I use programs like xdvi? I tried setting the DISPLAY as in cygwin, but it didn't work. Thanks, Bhalchandra Thatte Alfréd Rényi Institute of Mathematics Hungarian Academy of Sciences 1053 Budapest, Reáltanoda u. 13 - 15. On Jun 21, 1:08 pm, ronaldlesterbrooks <[EMAIL PROTECTED]> wrote: > This is embarrasing but in the interest of technical honesty I have to > confess that I created a book mark in Firefox for Sage. I don't know > how but the IP in the book mark was wrong. That fixed it. > Works great now. > > On Jun 20, 11:32 am, ronaldlesterbrooks <[EMAIL PROTECTED]> > wrote: > > > > > Thank you for letting me know. I will dig deeper and if I solve it, > > post. > > > On Jun 20, 1:17 am, "William Stein" <[EMAIL PROTECTED]> wrote: > > > > On Tue, Jun 17, 2008 at 11:10 AM, ronaldlesterbrooks > > > > <[EMAIL PROTECTED]> wrote: > > > > > Sage Gurus, > > > > Please help, > > > > I have had Sage up and running in a WindowsVistamachine using VMWare > > > > player. I have opened and closed it several times. Now I get this > > > > message: > > > > Connection Interrupted > > > > The connection to the server was reset while the page was loading. > > > > The network link was interrupted while negotiating a connection. > > > > Please try again. > > > > Try Again > > > > > I have tried uninstalling and re-installing VMWare, I have checked / > > > > sbin/ifconfig and the IP I am using is correct: > > > >http://192.168.230.128/ > > > > > I have played with my LAN settings i.e. changed them to automatically > > > > detect settings, I have reloaded Mozilla Firefox (upgraded to beta 3.0 > > > > in the process) and get the same results. > > > > > I love the idea of Sage and I am just learning it. I used Mathematica > > > > at UCSD as an undergraduate electrical engineering student and now > > > > just want a tool to help me master my fundamentals. > > > > > Anyway there are no messages in the VMware message log. Oh yes I have > > > > powered down and rebooted the laptop more than once. > > > > Thanks very much, > > > > Hi, > > > > I have absolutely no clue how to resolve this networking problem. > > > Maybe check your windows firewall settings? Reinstall vmware itself > > > again? I don't know. > > > > I'm mainly answering so that your help request doesn't go unanswered. > > > > -- William- Hide quoted text - > > > > - Show quoted text -- Hide quoted text - > > > - Show quoted text -- Hide quoted text - > > - Show quoted text - --~--~-~--~~~---~--~~ 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: graphviz installation problem
I just installed the ubuntu package libfreetype6-dev, and verified that it has put several header files in /usr/include/freetype2/ freetype But I still get the compilation errors. In my sage installation in the directory /usr/local/sage-3.0.2-ubuntu32-intel-i686-Linux/local/include/ freetype2/freetype/config I do have the ftheader.h file. So I do not understand the first line of the error that says: /usr/local/sage-3.0.2-ubuntu32-intel-i686-Linux/local/include/ ft2build.h:56:38: error: freetype/config/ftheader.h: No such file or directory. Thank you, Bhalchandra --~--~-~--~~~---~--~~ 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: graphviz installation problem
Sorry, a little correction: I issued the command sage -i graphviz-2.16.1.p0 which gave errors, but nauty could be installed without trouble. On Jul 5, 11:33 am, iSAGE <[EMAIL PROTECTED]> wrote: > I get the following errors while trying to install graphviz. > I am using ubuntu 8.04 and sage-3.0.2-ubuntu32-intel-i686-Linux > I issued the command sage -i nauty-24b7 -i graphviz-2.16.1.p0 > > This is the first time I have tried to install any package, so I am > unsure if I am doing anything wrong, but nauty installed without any > errors or warnings. One thing that is not clear to me is: are the > optional packages not pre-compiled? > > Thank you for help. > > Bhalchandra Thatte > Alfréd Rényi Institute of Mathematics > Hungarian Academy of Sciences > > - error messages --- > > In file included from gdft.c:107: > /usr/local/sage-3.0.2-ubuntu32-intel-i686-Linux/local/include/ > ft2build.h:56:38: error: freetype/config/ftheader.h: No such file or > directory > gdft.c:108:10: error: #include expects "FILENAME" or > gdft.c:109:10: error: #include expects "FILENAME" or > gdft.c:110:10: error: #include expects "FILENAME" or > gdft.c:130: error: expected specifier-qualifier-list before > 'FT_Library' > gdft.c:139: error: expected specifier-qualifier-list before > 'FT_Library' > gdft.c:222: error: expected '=', ',', ';', 'asm' or '__attribute__' > before 'library' > gdft.c: In function 'fontFetch': > gdft.c:441: error: 'FT_Error' undeclared (first use in this function) > gdft.c:441: error: (Each undeclared identifier is reported only once > gdft.c:441: error: for each function it appears in.) > gdft.c:441: error: expected ';' before 'err' > gdft.c:452: error: 'font_t' has no member named 'library' > gdft.c:452: error: 'fontkey_t' has no member named 'library' > gdft.c:481: error: 'err' undeclared (first use in this function) > gdft.c:481: warning: implicit declaration of function 'FT_New_Face' > gdft.c:481: error: 'fontkey_t' has no member named 'library' > gdft.c:481: error: 'font_t' has no member named 'face' > gdft.c:490: warning: implicit declaration of function 'FT_Attach_File' > gdft.c:490: error: 'font_t' has no member named 'face' > gdft.c: In function 'fontRelease': > gdft.c:511: warning: implicit declaration of function 'FT_Done_Face' > gdft.c:511: error: 'font_t' has no member named 'face' > gdft.c: At top level: > gdft.c:609: error: expected declaration specifiers or '...' before > 'FT_Bitmap' > gdft.c: In function 'gdft_draw_bitmap': > gdft.c:625: error: 'bitmap' undeclared (first use in this function) > gdft.c:637: error: 'ft_pixel_mode_grays' undeclared (first use in this > function) > gdft.c:646: error: 'ft_pixel_mode_mono' undeclared (first use in this > function) > gdft.c: In function 'gdFontCacheShutdown': > gdft.c:797: warning: implicit declaration of function > 'FT_Done_FreeType' > gdft.c:797: error: 'library' undeclared (first use in this function) > gdft.c: In function 'gdFontCacheSetup': > gdft.c:819: warning: implicit declaration of function > 'FT_Init_FreeType' > gdft.c:819: error: 'library' undeclared (first use in this function) > gdft.c: In function 'gdImageStringFTEx': > gdft.c:839: error: 'FT_Matrix' undeclared (first use in this function) > gdft.c:839: error: expected ';' before 'matrix' > gdft.c:840: error: 'FT_Vector' undeclared (first use in this function) > gdft.c:840: error: expected ';' before 'penf' > gdft.c:841: error: 'FT_Face' undeclared (first use in this function) > gdft.c:841: error: expected ';' before 'face' > gdft.c:842: error: 'FT_CharMap' undeclared (first use in this > function) > gdft.c:842: error: expected ';' before 'charmap' > gdft.c:843: error: 'FT_Glyph' undeclared (first use in this function) > gdft.c:843: error: expected ';' before 'image' > gdft.c:844: error: 'FT_GlyphSlot' undeclared (first use in this > function) > gdft.c:844: error: expected ';' before 'slot' > gdft.c:845: error: 'FT_Error' undeclared (first use in this function) > gdft.c:845: error: expected ';' before 'err' > gdft.c:846: error: 'FT_UInt&#x
[sage-support] graphviz installation problem
I get the following errors while trying to install graphviz. I am using ubuntu 8.04 and sage-3.0.2-ubuntu32-intel-i686-Linux I issued the command sage -i nauty-24b7 -i graphviz-2.16.1.p0 This is the first time I have tried to install any package, so I am unsure if I am doing anything wrong, but nauty installed without any errors or warnings. One thing that is not clear to me is: are the optional packages not pre-compiled? Thank you for help. Bhalchandra Thatte Alfréd Rényi Institute of Mathematics Hungarian Academy of Sciences - error messages --- In file included from gdft.c:107: /usr/local/sage-3.0.2-ubuntu32-intel-i686-Linux/local/include/ ft2build.h:56:38: error: freetype/config/ftheader.h: No such file or directory gdft.c:108:10: error: #include expects "FILENAME" or gdft.c:109:10: error: #include expects "FILENAME" or gdft.c:110:10: error: #include expects "FILENAME" or gdft.c:130: error: expected specifier-qualifier-list before 'FT_Library' gdft.c:139: error: expected specifier-qualifier-list before 'FT_Library' gdft.c:222: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'library' gdft.c: In function 'fontFetch': gdft.c:441: error: 'FT_Error' undeclared (first use in this function) gdft.c:441: error: (Each undeclared identifier is reported only once gdft.c:441: error: for each function it appears in.) gdft.c:441: error: expected ';' before 'err' gdft.c:452: error: 'font_t' has no member named 'library' gdft.c:452: error: 'fontkey_t' has no member named 'library' gdft.c:481: error: 'err' undeclared (first use in this function) gdft.c:481: warning: implicit declaration of function 'FT_New_Face' gdft.c:481: error: 'fontkey_t' has no member named 'library' gdft.c:481: error: 'font_t' has no member named 'face' gdft.c:490: warning: implicit declaration of function 'FT_Attach_File' gdft.c:490: error: 'font_t' has no member named 'face' gdft.c: In function 'fontRelease': gdft.c:511: warning: implicit declaration of function 'FT_Done_Face' gdft.c:511: error: 'font_t' has no member named 'face' gdft.c: At top level: gdft.c:609: error: expected declaration specifiers or '...' before 'FT_Bitmap' gdft.c: In function 'gdft_draw_bitmap': gdft.c:625: error: 'bitmap' undeclared (first use in this function) gdft.c:637: error: 'ft_pixel_mode_grays' undeclared (first use in this function) gdft.c:646: error: 'ft_pixel_mode_mono' undeclared (first use in this function) gdft.c: In function 'gdFontCacheShutdown': gdft.c:797: warning: implicit declaration of function 'FT_Done_FreeType' gdft.c:797: error: 'library' undeclared (first use in this function) gdft.c: In function 'gdFontCacheSetup': gdft.c:819: warning: implicit declaration of function 'FT_Init_FreeType' gdft.c:819: error: 'library' undeclared (first use in this function) gdft.c: In function 'gdImageStringFTEx': gdft.c:839: error: 'FT_Matrix' undeclared (first use in this function) gdft.c:839: error: expected ';' before 'matrix' gdft.c:840: error: 'FT_Vector' undeclared (first use in this function) gdft.c:840: error: expected ';' before 'penf' gdft.c:841: error: 'FT_Face' undeclared (first use in this function) gdft.c:841: error: expected ';' before 'face' gdft.c:842: error: 'FT_CharMap' undeclared (first use in this function) gdft.c:842: error: expected ';' before 'charmap' gdft.c:843: error: 'FT_Glyph' undeclared (first use in this function) gdft.c:843: error: expected ';' before 'image' gdft.c:844: error: 'FT_GlyphSlot' undeclared (first use in this function) gdft.c:844: error: expected ';' before 'slot' gdft.c:845: error: 'FT_Error' undeclared (first use in this function) gdft.c:845: error: expected ';' before 'err' gdft.c:846: error: 'FT_UInt' undeclared (first use in this function) gdft.c:846: error: expected ';' before 'glyph_index' gdft.c:855: error: 'FT_BitmapGlyph' undeclared (first use in this function) gdft.c:855: error: expected ';' before 'bm' gdft.c:858: error: 'FT_LOAD_DEFAULT' undeclared (first use in this function) gdft.c:873: error: 'FT_Size' undeclared (first use in this function) gdft.c:873: error: expected ';' before 'platform_specific' gdft.c:904: error: 'fontkey_t' has no member named 'library' gdft.c:904: error: 'library' undeclared (first use in this function) gdft.c:912: error: 'face' undeclared (first use in this function) gdft.c:912: error: 'font_t' has no member named 'face' gdft.c:913: error: 'slot' undeclared (first use in this function) gdft.c:917: error: 'total_min' undeclared (first use in this function) gdft.c:918: error: 'total_max' undeclared (first use in this function) gdft.c:953: error: 'matrix' undeclared (first use in this function) gdft.c:953: error: 'FT_Fixed' undeclared (first use in this function) gdft.c:959: warning: implicit declaration of function 'FT_Set_Transform' gdft.c:961: warning: implicit declaration of function 'FT_New_Size' gdft.c:961: error: 'platform_independent' undeclared (first use in this function) gdft.c:962: warning: implicit decl
[sage-support] texmacs
Hi, I am new to texmacs and almost new to sage. So this is a newbie question. Texmacs, sage installations worked as expected, and the plugin also worked as described on the sage website. But I could not figure out how to exit from the sage session? I tried close session, I also tried the normal "quit" in sage, but it does not close sage. Is there a way to quit sage and still be in texmacs? Or do I have to quit texmacs (as I did)? Thank you, Bhalchandra Thatte Rényi Alfréd Matematikai Kutatóintézet Hungarian Academy of Sciences 1053 Budapest, Reáltanoda u. 13 - 15. --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
