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2014-06-29 17:31:09 +0200	received badge	● Popular Question (source)
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2011-09-11 21:04:26 +0200	marked best answer	Nothing executes at prompt. (Ubuntu) It looks like you haven't got gfortran installed; see this sage-support thread. See also the earlier question here.
2011-09-11 21:04:00 +0200	received badge	● Scholar (source)
2011-09-11 21:04:00 +0200	marked best answer	Angular gridlines in sage plot I don't know any option to do that at once, but you can use something like: `var('x y') line = 2*x + y p = plot(...) grid = sum(implicit_plot(line+k,...) for k in srange(-1,1,0.2)) (p + grid).show()` to add the grid manually.
2011-09-11 20:59:22 +0200	asked a question	Jmol not displaying graphics I am using Sage on Ubuntu with a Firefox browser, however I cannot view anything with plot3d_vector_field() with the jmol viewer. 2D graphics display fine. Screenshot: http://img855.imageshack.us/img855/21... (Do not have enough Karma to upload images here.)
2011-06-10 17:48:04 +0200	received badge	● Editor (source)
2011-06-10 17:47:25 +0200	asked a question	Angular gridlines in sage plot My ubuntu sage installation still has some problems. So I installed it on my mac to get started. I was wondering if there is some way to make non-vertical gridlines in Sage. For example, I used show(L,gridlines=True) for some graphics object L. Now I want to rotate just the y axis gridline by 30 degrees. How can I do it? Thanks.
2011-06-10 13:22:58 +0200	asked a question	Nothing executes at prompt. (Ubuntu) I installed the sagemath software on an Ubuntu machine and nothing executes. I type `sage: notebook() NameError: name 'notebook' is not defined sage: 2+3 --------------------------------------------------------------------------- NameError Traceback (most recent call last) /home/myusername/Downloads/sage-4.7-linux-32bit-ubuntu_10.04_lts-i686-Linux/local/bin/<ipython console> in <module>() NameError: name 'Integer' is not defined` On opening sage I get the following message. I just installed sage and I have no idea what this means or how to correct it. ---------------------------------------------------------------------- \| Sage Version 4.7, Release Date: 2011-05-23 \| \| Type notebook() for the GUI, and license() for information. \| ---------------------------------------------------------------------- --------------------------------------------------------------------------- ImportError Traceback (most recent call last) /home/myusername/Downloads/sage-4.7-linux-32bit-ubuntu_10.04_lts-i686-Linux/local/lib/python2.6/site-packages/IPython/ipmaker.pyc in force_import(modname) 64 reload(sys.modules[modname]) 65 else: ---> 66 __import__(modname) 67 68 /home/myusername/Downloads/sage-4.7-linux-32bit-ubuntu_10.04_lts-i686-Linux/local/bin/ipy_profile_sage.py in <module>() 5 preparser(True) 6 ----> 7 import sage.all_cmdline 8 sage.all_cmdline._init_cmdline(globals()) 9 /home/myusername/Downloads/sage-4.7-linux-32bit-ubuntu_10.04_lts-i686-Linux/local/lib/python2.6/site-packages/sage/all_cmdline.py in <module>() 12 try: 13 ---> 14 from sage.all import * 15 from sage.calculus.predefined import x 16 preparser(on=True) /home/myusername/Downloads/sage-4.7-linux-32bit-ubuntu_10.04_lts-i686-Linux/local/lib/python2.6/site-packages/sage/all.py in <module>() 89 from sage.algebras.all import * 90 from sage.modular.all import * ---> 91 from sage.schemes.all import * 92 from sage.graphs.all import * 93 from sage.groups.all import * /home/myusername/Downloads/sage-4.7-linux-32bit-ubuntu_10.04_lts-i686-Linux/local/lib/python2.6/site-packages/sage/schemes/all.py in <module>() 23 from jacobians.all import * 24 ---> 25 from hyperelliptic_curves.all import * 26 27 from plane_curves.all import * /home/myusername/Downloads/sage-4.7-linux-32bit-ubuntu_10.04_lts-i686-Linux/local/lib/python2.6/site-packages/sage/schemes/hyperelliptic_curves/all.py in <module>() ----> 1 2 3 from constructor import HyperellipticCurve 4 from hyperelliptic_generic import is_HyperellipticCurve 5 from kummer_surface import KummerSurface 6 from invariants import (igusa_clebsch_invariants, 7 absolute_igusa_invariants_kohel, /home/myusername/Downloads/sage-4.7-linux-32bit-ubuntu_10.04_lts-i686-Linux/local/lib/python2.6/site-packages/sage/schemes/hyperelliptic_curves/constructor.py in <module>() 9 #***************************************************************************** 10 ---> 11 from sage.schemes.generic.all import ProjectiveSpace 12 13 from hyperelliptic_generic import HyperellipticCurve_generic /home/myusername/Downloads/sage-4.7-linux-32bit-ubuntu_10.04_lts-i686-Linux/local/lib/python2.6/site-packages/sage/schemes/generic/all.py in <module>() 2 3 from spec import Spec, is_Spec ----> 4 from affine_space import AffineSpace, is_AffineSpace 5 from algebraic_scheme import is_AlgebraicScheme 6 from ambient_space import is_AmbientSpace /home/myusername/Downloads/sage-4.7-linux-32bit-ubuntu_10.04_lts-i686-Linux/local/lib/python2.6/site-packages/sage/schemes/generic/affine_space.pyc in <module>() 22 from sage.misc.all import latex 23 ---> 24 import algebraic_scheme 25 26 import ambient_space /home/myusername/Downloads/sage-4.7-linux-32bit-ubuntu_10.04_lts-i686-Linux/local/lib/python2.6/site-packages/sage/schemes/generic/algebraic_scheme.pyc in <module>() 141 import affine_space 142 import projective_space --> 143 import toric_variety 144 import morphism 145 import scheme /home/myusername/Downloads/sage-4.7-linux-32bit-ubuntu_10.04_lts-i686-Linux/local/lib/python2.6/site-packages/sage/schemes/generic/toric_variety.py in <module>() 234 import sys 235 --> 236 from sage.geometry.cone import Cone, is_Cone 237 from sage.geometry.fan import Fan 238 from sage.matrix.all import matrix /home/myusername/Downloads/sage-4.7-linux-32bit-ubuntu_10.04_lts-i686-Linux/local ... (more)