[sage-support] Output processing and formatting delay in Notebook
Hello!
This code in Sage Notebook:
for i in range(7):
html('scriptalert(Text %g);/script' % i)
time.sleep(1)
gives no alert messages before cell completely calculated? Is there
any way to force immediate output processing?
P.S. Sorry for duplicating question, it has already posted at asksage
(http://ask.sagemath.org/question/1039/html-processing-delay), but
because of someone may not be familiar with asksage I'd like to repost
it here.
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[sage-support] Unicode characters in axes labels?
Hello!
I am trying to use unicode characters in axes labels and it fails with
exception:
P = plot_step_function([(i,prime_pi(i)) for i in
range(20)],thickness=2,color='black')
P.show(axes=False,frame=True,axes_labels=('текс','x'))
Traceback (most recent call last):
File stdin, line 1, in module
File _sage_input_28.py, line 10, in module
exec compile(u'open(___code___.py,w).write(# -*- coding:
utf-8 -*-\\n +
_support_.preparse_worksheet_cell(base64.b64decode(UC5zaG93KGF4ZXM9RmFsc2UsZnJhbWU9VHJ1ZSxheGVzX2xhYmVscz0oJ9GC0LXQutGBJywneCcpKQ==),globals())
+\\n); execfile(os.path.abspath(___code___.py))
File , line 1, in module
File /tmp/tmpzOkGkv/___code___.py, line 2, in module
exec
compile(uP.show(axes=False,frame=True,axes_labels=('\u0442\u0435\u043a
\u0441','x')) + '\n', '', 'single')
File , line 1, in module
File /home/sage/sage/local/lib/python2.6/site-packages/sage/misc/
decorators.py, line 456, in wrapper
return func(*args, **kwds)
File /home/sage/sage/local/lib/python2.6/site-packages/sage/plot/
plot.py, line 1750, in show
self.save(**kwds)
File /home/sage/sage/local/lib/python2.6/site-packages/sage/misc/
decorators.py, line 456, in wrapper
return func(*args, **kwds)
File /home/sage/sage/local/lib/python2.6/site-packages/sage/plot/
plot.py, line 2484, in save
transparent=transparent)
File /home/sage/sage/local/lib/python2.6/site-packages/matplotlib/
figure.py, line 1084, in savefig
self.canvas.print_figure(*args, **kwargs)
File /home/sage/sage/local/lib/python2.6/site-packages/matplotlib/
backend_bases.py, line 1889, in print_figure
**kwargs)
File /home/sage/sage/local/lib/python2.6/site-packages/matplotlib/
backends/backend_agg.py, line 438, in print_png
FigureCanvasAgg.draw(self)
File /home/sage/sage/local/lib/python2.6/site-packages/matplotlib/
backends/backend_agg.py, line 394, in draw
self.figure.draw(self.renderer)
File /home/sage/sage/local/lib/python2.6/site-packages/matplotlib/
artist.py, line 55, in draw_wrapper
draw(artist, renderer, *args, **kwargs)
File /home/sage/sage/local/lib/python2.6/site-packages/matplotlib/
figure.py, line 798, in draw
func(*args)
File /home/sage/sage/local/lib/python2.6/site-packages/matplotlib/
artist.py, line 55, in draw_wrapper
draw(artist, renderer, *args, **kwargs)
File /home/sage/sage/local/lib/python2.6/site-packages/matplotlib/
axes.py, line 1946, in draw
a.draw(renderer)
File /home/sage/sage/local/lib/python2.6/site-packages/matplotlib/
artist.py, line 55, in draw_wrapper
draw(artist, renderer, *args, **kwargs)
File /home/sage/sage/local/lib/python2.6/site-packages/matplotlib/
axis.py, line 1032, in draw
self.label.draw(renderer)
File /home/sage/sage/local/lib/python2.6/site-packages/matplotlib/
artist.py, line 55, in draw_wrapper
draw(artist, renderer, *args, **kwargs)
File /home/sage/sage/local/lib/python2.6/site-packages/matplotlib/
text.py, line 526, in draw
bbox, info = self._get_layout(renderer)
File /home/sage/sage/local/lib/python2.6/site-packages/matplotlib/
text.py, line 305, in _get_layout
clean_line, ismath = self.is_math_text(line)
File /home/sage/sage/local/lib/python2.6/site-packages/matplotlib/
text.py, line 989, in is_math_text
if cbook.is_math_text(s):
File /home/sage/sage/local/lib/python2.6/site-packages/matplotlib/
cbook.py, line 1793, in is_math_text
s = unicode(s)
UnicodeDecodeError: 'ascii' codec can't decode byte 0xd1 in position
0: ordinal not in range(128)
I found this topic:
https://groups.google.com/group/sage-support/browse_thread/thread/9908f1869c7d7f45/1cc9473c667c162c?hl=enlnk=gstq=unicode+axes+labels#1cc9473c667c162c
No responses :(
Could anyone please suggest me something to workaround this problem?
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[sage-support] Re: Notebook data cache
My temporary solution - removing all *.sobj, *.gif, *.png, *.zip files and all snapshots directories. Now .sage direcotory is 13 Mb only! Also, I have found for myself important tip: while using DATA directory manually for saving objects (*.sobj files) no one will manage it content for you, and if later you will not need saved objects, they will still exists in filesystem. -- 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: Notebook data cache
P.S. It is also ok to remove dap directory content. -- 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] Notebook data cache
Hello! I am using Sage with Notebooks for some time, and my .sage directory now is 129 Mb. I believe it is impossible for me to write so much code (text), that means most of this space comes from notebook cache (images, for example). Is there some easy way to remove cache? Best regards. -- 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] Additional functions
Hi all! I am using sage from time to time for a year in education. Unfortunately, I couldn't find default functions to do some operations, so I wrote my own functions. For now here are just a few functions, but I believe in time I'll describe them all. I've placed them in Google Code project page, my be someone will find them useful for his purpose. http://code.google.com/p/libradiosage/ Everything described in wiki page: http://code.google.com/p/libradiosage/wiki/Introduction By the way, I'd like to say thank you to all developers of sage and internal components. You are doing a great job! Best regards, Eugene. -- 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] Why save method calls show?
Hi!
I want to save my plot using notebook:
plot(sin,0,4).save('foo.png')
this code saves my plot, but also calls show method (or something like
that) and I have plot in output. Is it possible only to save plot,
without any output at all?
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[sage-support] How to add grid lines to plot?
Hello! There is plot: p=plot(sin,0,2*pi) How to add grid lines to this plot? -- 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] Difference between sage and pyhton calculations
Hello! Here is my pyhtons results: python Python 2.6.5 (r265:79063, Mar 23 2010, 04:49:54) [GCC 4.4.3] on linux2 Type help, copyright, credits or license for more information. 1+1 2 6e-6 % 10e-6 6.0002e-06 and here is sage: ./ sage Sage Version 4.3.5, Release Date: 2010-03-28 sage: 1+1 2 sage: 6e-6 % 10e-6 -4.00e-6 I'm sure sage is wrong.. :( -- 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: Difference between sage and pyhton calculations
P.S. I've also got wrong result at http://sagenb.kaist.ac.kr/ server. On Apr 6, 3:56 am, Eugene Goldberg omegat...@gmail.com wrote: Hello! Here is my pyhtons results: python Python 2.6.5 (r265:79063, Mar 23 2010, 04:49:54) [GCC 4.4.3] on linux2 Type help, copyright, credits or license for more information. 1+1 2 6e-6 % 10e-6 6.0002e-06 and here is sage: ./ sage Sage Version 4.3.5, Release Date: 2010-03-28 sage: 1+1 2 sage: 6e-6 % 10e-6 -4.00e-6 I'm sure sage is wrong.. :( -- 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] Print only outputs?
Hi! Is it possible to print only output content of worksheet? -- 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] An easy way to plot 2d array?
Could you suggest one? I've seen this, but i think it's not a good solution.. contour_plot(lambda x,y: data[int(x)][int(y)],(x,0,len(data)-1),(y, 0,len(data[0])-1)) -- 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] How to contour_plot piecewise defined function?
Hi! I've got a few functions like this: f1(x,y)=sin(x)+cos(y) f2(x,y)=sin(y)+cos(x) and I need to plot counter graphics like: contour_plot(lambda x,y:f1(x,y),(x,0,3),(y,0,14))+contour_plot(lambda x,y:f2(x,y),(x,3,6),(y,0,14)) can i do this easily using piecewise function? g=Piecewise([ [(0,3),f1], [(3,6),f2] ]) -- 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] Problem installing sage on ArchLinux.
Hello, I've got two computers with archlinux (i686 and x86_64 versions) and on both machines there is same problem installing sage: $make File /home/ajunta/Binary/sage-4.3-linux-Ubuntu_9.10-x86_64-Linux/ local/lib/python2.6/site-packages/sage/interfaces/gap.py, line 362, in _start raise RuntimeError, msg RuntimeError: Unable to start gap could you please advice what is wrong with it? Best regards, Eugene. -- 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: Problem installing sage on ArchLinux.
Thanks for the advice, I had some problems building previous version of sage, and like that one - it solved by building sage from source. I guess building from source is the best way to avoid many problems. On Jan 3, 9:47 am, Alex Ghitza aghi...@gmail.com wrote: On Sun, 3 Jan 2010 01:09:00 -0800 (PST), Eugene Goldberg omegat...@gmail.com wrote: I've got two computers with archlinux (i686 and x86_64 versions) and on both machines there is same problem installing sage: $make File /home/ajunta/Binary/sage-4.3-linux-Ubuntu_9.10-x86_64-Linux/ local/lib/python2.6/site-packages/sage/interfaces/gap.py, line 362, in _start raise RuntimeError, msg RuntimeError: Unable to start gap could you please advice what is wrong with it? Hi, It looks like you're trying to install from the binaries for Ubuntu, is that correct? I have never tried that, but I wouldn't be suprised if it didn't work, since archlinux and ubuntu aren't really that close. One of these days I will find out how to make binaries and I'll produce 32 and 64 bit binaries for archlinux. Until then, I suggest you download the source code for Sage and build it yourself. It is a bit on the long side (a few hours), but it should work pretty well. After you download sage-4.3.tar, untar it and look at the README.txt file. It's not quite up to date, but it's pretty good. In particular, Arch Linux is listed as unsupported, but several people have been building Sage on it for a while and it works fine. Before you start the build, make sure you have the prerequisites -- to those listed in README.txt, you have to add gcc-fortran. You also need to set the environment variables SAGE_FORTRAN and SAGE_FORTRAN_LIB as described in README.txt. Good luck, and let us know if you have any more problems. PS: After writing the above, I noticed that Sage 4.3 is actually packaged in AUR, both as source (sage-mathematics) and as binary (sage-mathematics-bin). So that could be another option. (But I still think that the easiest and most robust way is to build from source.) Best, Alex -- Alex Ghitza -- Lecturer in Mathematics -- The University of Melbourne -- Australia --http://www.ms.unimelb.edu.au/~aghitza/ -- To post to this group, send email to sage-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: Integration of piecewise function
So... There is no solution? On Dec 9, 6:03 pm, Sand Wraith omegat...@gmail.com wrote: Does anyone know is this issue only for newest version? (may be I should use older version of sage) On 8 дек, 21:47, David Joyner wdjoy...@gmail.com wrote: Unfortunately, the piecewise class was written before the symbolic expressions class and has not kept pace. The obvious solution produced this: sage: signal = Piecewise([[(0,1), cos(2*pi*1*x)], [(-1, 0), 0*x]]) sage: signal.integral(definite=True) --- TypeError Traceback (most recent call last) /Users/wdj/.sage/temp/jeeves.home/2806/_Users_wdj__sage_init_sage_0.py in module() /Users/wdj/sagefiles/sage-4.2.1/local/lib/python2.6/site-packages/sage/functions/piecewise.pyc in integral(self, x, a, b, definite) 787 fun_integrated = fun.integral(x, end, x) 788 else: -- 789 fun_integrated = fun.integral(x, start, x) + area 790 if definite or end != infinity: 791 area += fun.integral(x, start, end) /Users/wdj/sagefiles/sage-4.2.1/local/lib/python2.6/site-packages/sage/symbolic/expression.so in sage.symbolic.expression.Expression.integral (sage/symbolic/expression.cpp:25344)() /Users/wdj/sagefiles/sage-4.2.1/local/lib/python2.6/site-packages/sage/calculus/calculus.pyc in integral(expression, v, a, b, algorithm) 635 else: 636 try: -- 637 result = expression._maxima_().integrate(v, a, b) 638 except TypeError, error: 639 s = str(error) /Users/wdj/sagefiles/sage-4.2.1/local/lib/python2.6/site-packages/sage/interfaces/maxima.pyc in integral(self, var, min, max) 2023 if max is None: 2024 raise ValueError, neither or both of min/max must be specified. - 2025 return I(var, min, max) 2026 2027 integrate = integral /Users/wdj/sagefiles/sage-4.2.1/local/lib/python2.6/site-packages/sage/interfaces/expect.pyc in __call__(self, *args, **kwds) 1402 1403 def __call__(self, *args, **kwds): - 1404 return self._obj.parent().function_call(self._name, [self._obj] + list(args), kwds) 1405 1406 def help(self): /Users/wdj/sagefiles/sage-4.2.1/local/lib/python2.6/site-packages/sage/interfaces/expect.pyc in function_call(self, function, args, kwds) 1310 [s.name() for s in args], 1311 ['%s=%s'%(key,value.name()) for key, value in kwds.items()]) - 1312 return self.new(s) 1313 1314 def _function_call_string(self, function, args, kwds): /Users/wdj/sagefiles/sage-4.2.1/local/lib/python2.6/site-packages/sage/interfaces/expect.pyc in new(self, code) 1094 1095 def new(self, code): - 1096 return self(code) 1097 1098 ### /Users/wdj/sagefiles/sage-4.2.1/local/lib/python2.6/site-packages/sage/interfaces/expect.pyc in __call__(self, x, name) 1029 1030 if isinstance(x, basestring): - 1031 return cls(self, x, name=name) 1032 try: 1033 return self._coerce_from_special_method(x) /Users/wdj/sagefiles/sage-4.2.1/local/lib/python2.6/site-packages/sage/interfaces/expect.pyc in __init__(self, parent, value, is_name, name) 1445 except (TypeError, KeyboardInterrupt, RuntimeError, ValueError), x: 1446 self._session_number = -1 - 1447 raise TypeError, x 1448 self._session_number = parent._session_number 1449 TypeError: Computation failed since Maxima requested additional constraints (try the command 'assume(x0)' before integral or limit evaluation, for example): Is x positive, negative, or zero? On Tue, Dec 8, 2009 at 4:28 PM, Sand Wraith omegat...@gmail.com wrote: Hello, there is signal function: signal = Piecewise([ [(0,5), cos(2*pi*1*x) ], [(5,10), cos(2*pi*2.5*x) ], ]) And window function: window = Piecewise([[(-1,1),1]]) And the result function: r=window*signal How can I integrate it now? I'am trying: r.integral(definite=True) but it leads to error: TypeError: integral() takes no arguments (3 given) -- 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 athttp://groups.google.com/group/sage-support URL:http://www.sagemath.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
[sage-support] How to plot tree-dimensional array?
Hello, Could you please advice the way to plot three-dimensional array? Something like plot3d or counter_plot, but in case the data are already calculated in array and there is no way to call f(x,y). Best regards, Eugene. -- 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: How to plot tree-dimensional array?
Thank you both! Your examples and suggestions are very useful and it solved my problem. -- 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
