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2013-04-25 12:25:04 +0200 | commented answer | matplotlib x11 window plt.savefig('') didn't do anything, and i tried everything on the http://wiki.sagemath.org/sage_matlab link you provided, and that also didn't do anything. |
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2013-04-24 14:52:43 +0200 | commented answer | sage terminal colors That worked. The file init.sage didn't exist so I had to create it myself. |
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2013-04-24 14:52:21 +0200 | marked best answer | sage terminal colors You can try adding the line to the file |
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2013-04-24 14:28:01 +0200 | asked a question | matplotlib x11 window In both Ipython and Python terminals I can type in the following and a nice x11 figure will pop up (example figure is shown at http://matplotlib.org/users/pyplot_tu...). In sage, the plt.show() statement just does nothing. Is there any way to make this work in sage? It is kindof neat at times that sage plotting functions just dump an image file and then launches an image viewer, but I need more primitive access to matplotlib sometimes and I also need to be able to interact with the figure sometimes. Why doesn't this work in the sage terminal? |
2013-04-24 14:17:36 +0200 | asked a question | sage terminal colors I just upgraded from sage version 4.8 to version 5.8. I was pleasantly surprised to see colouring of the text similar to ipython does. However, sage seems to be defaulting to colours geared towards white background and black text. I have a black background and white text. The default colour scheme is very hard to read and I can't figure out how to change it. I did find this web page (http://mvngu.wordpress.com/2009/05/21...) but following the instructions in it does not work and my sage colour scheme is always that of figure 3 on the link, but my system terminal settings have a black background and white text. Although I would prefer the right colour scheme, the old pure black and white would be better than what I have now. How can I change the sage terminal colours to something more readable? I don't want to change my default system terminal settings. I can type "%colors Linux" once I launch sage and it does then give me the colour scheme that I want, but I can't get the scheme to persist from session to session. |
2013-04-05 01:17:03 +0200 | commented question | incompatible libgfortran version? although I would have liked to know the cause of this for future reference, upgrading to the latest version of sage did resolve the issue somehow. |
2013-04-01 11:11:31 +0200 | commented answer | incompatible libgfortran version? user@user-cfd-workstation:~$ which gfortran /usr/bin/gfortran user@user-cfd-workstation:~$ sage -sh Starting subshell with Sage environment variables set. Be sure to exit when you are done and do not do anything with other copies of Sage! Bypassing shell configuration files ... SAGE_ROOT=/opt/sage-4.8-linux-64bit-ubuntu_10.04.3_lts-x86_64-Linux (sage subshell) user-cfd-workstation:~ user$ which gfortran /usr/bin/gfortran SAGE_ROOT=/opt/sage-4.8-linux-64bit-ubuntu_10.04.3_lts-x86_64-Linux (sage subshell) user-cfd-workstation:~ user$ |
2013-04-01 11:11:09 +0200 | commented answer | incompatible libgfortran version? this didn't work. i checked, and it doesn't appear that sage -sh is causing a different compiler to be used. does this prove it? |
2013-03-27 16:28:42 +0200 | asked a question | incompatible libgfortran version? I am using a python code that someone else wrote that links to some fortran libraries. I can get the code to work with my system installation of python (Python 2.7.2+ default, Oct 4 2011, 20:06:09 [GCC 4.6.1] on linux2). My operating system is Ubuntu 11.10. When I try to use the same python code in sage, I get the following error: OSError: /opt/sage-4.8-linux-64bit-ubuntu_10.04.3_lts-x86_64-Linux/local/lib/libgfortran.so.3: version `GFORTRAN_1.4' not found (required by [omitting the full path on this website for privacy reasons]/librefprop.so) when the ctypes.cdll.LoadLibrary(u"[omitting the full path on this website for privacy reasons]/librefprop.so") command is run. I really don't know anything about fortran or how ctypes works, but it appears as though the sage version that I am using has a different libgfortran version than my operating system used when I created the fortran object files from the fortran code and linked them with the gfortran command. Here is some output from the command "dpkg --list | grep compiler|grep fortran" ii gfortran 4:4.6.1-2ubuntu5 GNU Fortran 95 compiler ii gfortran-4.6 4.6.1-9ubuntu3 GNU Fortran 95 compiler Is there some way I can tell sage to use the same libgfortran as my system python distribution? Will updating sage resolve this issue? |