Re: [sage-support] Sagetex fails to interpret input
On Tue, 11 Oct 2011 at 11:09PM +0200, Jose Guzman wrote: > AttributeError: 'sage.rings.integer.Integer' object has no attribute > 'rstrip' > > Running Sage on example.sage failed! Fix example.tex and try again. > > I moved $SAGEROOT/local/share/texmf/tex/ to /usr/local/share/texmf > following the instructions to install sagetex. > > Does anybody knows what's wrong here? Your TeX installation is finding an old version of sagetex.sty. Do kpsewhich sagetex.sty If the result is inside your distribution's TeX installation, you need to make TeX ignore that file. I would rename or delete the old sagetex.sty and use the above command to make sure that TeX is finding the sagetex.sty that comes with your current version of Sage. Dan -- --- Dan Drake - http://mathsci.kaist.ac.kr/~drake --- signature.asc Description: Digital signature
[sage-support] Re: Question about Kernel Matrix
On 10/11/11 5:27 PM, juaninf wrote: Hi everyone I want know if exist a parallel implementation to kernels of matrices with openmpi in sage I'm pretty sure that nothing in Sage uses openmpi by default (and probably not at all). We don't include any mpi packages in the default Sage. Thanks, Jason -- 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] Question about Kernel Matrix
Hi everyone I want know if exist a parallel implementation to kernels of matrices with openmpi in sage thanks -- 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] Sagetex fails to interpret input
I am trying a minimal example of Sage to start using it for my lectures:
When I try the following file (example.text)
\documentclass{article}
\usepackage{sagetex}
\begin{document}
one plus two is $\sage{1+2}$
\end{document}
>>> pdflatex example.text
>>> sage example.sage
it gives me the following error:
Processing Sage code for example.tex...
Inline formula 0
Error in Sage code on line 5 of example.tex! Traceback follows.
Traceback (most recent call last):
File "example.py", line 7, in
_st_.inline(_sage_const_0 , _sage_const_1 +_sage_const_2 )
File
"/home/nin/sage-4.7/local/lib/python2.6/site-packages/sagetex.py", line
73, in inline
s.rstrip() + '}{}{}{}{}}\n')
File "element.pyx", line 328, in
sage.structure.element.Element.__getattr__ (sage/structure/element.c:2790)
File "parent.pyx", line 277, in
sage.structure.parent.getattr_from_other_class
(sage/structure/parent.c:2930)
File "parent.pyx", line 175, in
sage.structure.parent.raise_attribute_error (sage/structure/parent.c:2699)
AttributeError: 'sage.rings.integer.Integer' object has no attribute
'rstrip'
Running Sage on example.sage failed! Fix example.tex and try again.
I moved $SAGEROOT/local/share/texmf/tex/ to /usr/local/share/texmf
following the instructions to install sagetex.
Does anybody knows what's wrong here?
Thanks
Jose
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[sage-support] Re: dumps() and loads() of symbolic functions problem
On Oct 11, 4:16 am, CDSousa wrote:
> x = var('x'); f = function('f',x) ; s = dumps(f) ; loads(s)
> I get a "RuntimeError: unknown function 'f' in archive".
Excellent example. That's definitely a bug. You must be the first
person who tries to pickle a formal function (i.e., one without a
defining expression). You should file a bug report with exactly this
example in there.
Some technical information from
sage.misc.explain_pickle.explain_pickle:
(indeed, pickle is not an opaque binary format when looked at with the
right tools. However, in this case it turns out it wraps another
format from Pynac which is probably also not opaque but needs an
expert to make sense of)
Things go wrong in sage.symbolic.expression.Expression , which
basically just wraps Pynac's GArchive. Apparently, this routine
handles free "variables" properly but not "free functions".
The bug will be immediately pushed upstream to Pynac developers, but
luckily those are actively involved in sage.
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[sage-support] Re: Re Superimpose various region_plot's
Wow it works perfect! Thank you so much! I should take more careful look of the manual and help functions. Thank you. On Oct 11, 11:10 am, Jason Grout wrote: > On 10/11/11 9:44 AM, Zheng Han wrote: > > > The points in the area of region_plot are covered by the region_plot. > > I'm not sure whether I failed to patch it or the patch indeed fails to > > work for points. Thx. > > Most of the patch failed to apply, as the messages said. You could do > this instead: > > r1+=point(f,rgbcolor=[1,0,0],zorder=1)+plot(c1)+plot(c2)+plot(c3)+point(g,z > order=1) > > (note the zorder arguments to point) > > Thanks, > > Jason -- 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] Question about sagenb.org
Exist sagenb.org with openmpi module? -- 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: Show intermediate steps for solve(), diff(), integral(), etc...
On 10/11/11 10:13 AM, kcrisman wrote:
I'm looking for a way to show the intermediate steps Sage goes through
when evaluating an expression. To give a very simple example:
x=var('x')
solve(x*x+6x+8,x)
evaluates to:
[x == -2, x == -4]
However I would like the option to see the intermediate steps, thus
something like:
(x+2)(x+4)=0
[x == -2, x == -4]
Sage has a lot of tools in it, but it does not have this, nor is it
likely to have for some time, as I do not believe anyone is working on
this. I suppose if one of the M's has it, adding such functionality
- which would probably *not* be the default - would fall under the
mission statement, though.
There do exist such programs, some of which are free (of charge, not
necessarily open-source), such as http://www.xyalgebra.org/. I do not
know how good they are, but you might as well try them. Good luck,
and sorry we cannot currently help with this!
Wolfram Alpha does a nice job of showing steps...
Jason
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[sage-support] Re: Re Superimpose various region_plot's
On 10/11/11 9:44 AM, Zheng Han wrote: The points in the area of region_plot are covered by the region_plot. I'm not sure whether I failed to patch it or the patch indeed fails to work for points. Thx. Most of the patch failed to apply, as the messages said. You could do this instead: r1+=point(f,rgbcolor=[1,0,0],zorder=1)+plot(c1)+plot(c2)+plot(c3)+point(g,zorder=1) (note the zorder arguments to point) Thanks, Jason -- 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: Show intermediate steps for solve(), diff(), integral(), etc...
> I'm looking for a way to show the intermediate steps Sage goes through
> when evaluating an expression. To give a very simple example:
>
> x=var('x')
> solve(x*x+6x+8,x)
>
> evaluates to:
>
> [x == -2, x == -4]
>
> However I would like the option to see the intermediate steps, thus
> something like:
>
> (x+2)(x+4)=0
> [x == -2, x == -4]
>
Sage has a lot of tools in it, but it does not have this, nor is it
likely to have for some time, as I do not believe anyone is working on
this. I suppose if one of the M's has it, adding such functionality
- which would probably *not* be the default - would fall under the
mission statement, though.
There do exist such programs, some of which are free (of charge, not
necessarily open-source), such as http://www.xyalgebra.org/. I do not
know how good they are, but you might as well try them. Good luck,
and sorry we cannot currently help with this!
- kcrisman
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[sage-support] Re Superimpose various region_plot's
(Sorry the previous email I forget to attach the plot file. I would
delete it in the google mailgroup.)
The original discussion is here:http://groups.google.com/group/sage-
support/browse_thread/thread/3f4ad882ba420693?hl=en. However, since
the discussion seems closed I can't reply to it so I just opened this
another discussion.
I'm using sage4.7.1 and running it on ubuntu 11.04. I tried to create
a branch for sage and patch this:
http://trac.sagemath.org/sage_trac/ticket/9491
and it seems worked since sagenb will not complain about the unknown
argument 'opacity' after that but patching procedure reported:
{{{
Hunk #1 FAILED at 119
Hunk #2 FAILED at 146
Hunk #3 FAILED at 167
Hunk #4 FAILED at 179
4 out of 4 hunks FAILED -- saving rejects to file sage/plot/
contour_plot.py.rej
abort: patch failed to apply
}}}
The region_plot works well to fill some area with color and
transparent to axis and lines but it fails for points. For my example:
{{{
c1 = line([[5,8],[7,0]])
c2 = line([[-1,7],[7,5]])
c3 = line([[-1,-2],[6,5]])
f = [()]
g = [()]
for i in range(8):
for j in range(8):
if (4*i+j<=28)&(i+4*j<=27)&(i-j<=1):
f.append((i,j))
else:
g.append((i,j))
f.pop(0)
g.pop(0)
c = line([[0,0],[2,5]])
var('x y')
r1=region_plot(max(x+4*y-28,x-y-1)<=-.5,(x,0,6),(y,
0,5),incol='lightblue',borderwidth=0,opacity=0.5)
r1+=point(f,rgbcolor=[1,0,0])+plot(c1)+plot(c2)+plot(c3)+point(g)
r1.show()
}}}
The points in the area of region_plot are covered by the region_plot.
I'm not sure whether I failed to patch it or the patch indeed fails to
work for points. Thx.
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points.pdf
Description: Adobe PDF document
[sage-support] Re Superimpose various region_plot's
The original discussion is here:http://groups.google.com/group/sage-
support/browse_thread/thread/3f4ad882ba420693?hl=en. However, since
the discussion seems closed I can't reply to it so I just opened this
another discussion.
I'm using sage4.7.1 and running it on ubuntu 11.04. I tried to create
a branch for sage and patch this: http://trac.sagemath.org/sage_trac/ticket/9491
and it seems worked since sagenb will not complain about the unknown
argument 'opacity' after that but patching procedure reported:
{{{
Hunk #1 FAILED at 119
Hunk #2 FAILED at 146
Hunk #3 FAILED at 167
Hunk #4 FAILED at 179
4 out of 4 hunks FAILED -- saving rejects to file sage/plot/
contour_plot.py.rej
abort: patch failed to apply
}}}
The region_plot works well to fill some area with color and
transparent to axis and lines but it fails for points. For my example:
{{{
c1 = line([[5,8],[7,0]])
c2 = line([[-1,7],[7,5]])
c3 = line([[-1,-2],[6,5]])
f = [()]
g = [()]
for i in range(8):
for j in range(8):
if (4*i+j<=28)&(i+4*j<=27)&(i-j<=1):
f.append((i,j))
else:
g.append((i,j))
f.pop(0)
g.pop(0)
c = line([[0,0],[2,5]])
var('x y')
r1=region_plot(max(x+4*y-28,x-y-1)<=-.5,(x,0,6),(y,
0,5),incol='lightblue',borderwidth=0,opacity=0.5)
r1+=point(f,rgbcolor=[1,0,0])+plot(c1)+plot(c2)+plot(c3)+point(g)
r1.show()
}}}
The points in the area of region_plot are covered by the region_plot.
I'm not sure whether I failed to patch it or the patch indeed fails to
work for points. Thx.
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[sage-support] Re: memory leak in mixed integer programming?
> > This happens no matter if I use solver="GLPK" or solver="coin" (cbc is > installed), so it does not seem to be a problem of the underlying milp- > solver. > Pompompom That's probably my fault :-D I will try to deal with it today. I'll keep this thread updated :-) Nathann -- 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
Re: [sage-support] Re: fill between
Yeah, that did it. Thanks!
# distribution function
f(x) = 1/sqrt(2*pi)*e^(.5*(-x^2))
s = 1
p = plot(f,(-pi,pi),ymax = .45, ticks=[1,[]])
p += line([(s,0),(s,f(s))],linestyle = 'dashed')
p += line([(-s,0),(-s,f(-s))],linestyle = 'dashed')
p += text("$\\mu$ = 0",(0.4,0.05))
p += plot(f,(-s,s),fill = 'axis')
show (p)
>> I'm trying to fill in the bell curve between two points, like plus and minus
>> 1 sigma.
>
>Maybe like this:
>
>p = plot(f,(-pi,pi),ymax = .4, ticks=[1,[]])
>p += plot(f,(-s,s),fill = 'axis')
>
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Re: [sage-support] Re: fill between
> I'm trying to fill in the bell curve between two points, like plus and minus > 1 sigma. Maybe like this: p = plot(f,(-pi,pi),ymax = .4, ticks=[1,[]]) p += plot(f,(-s,s),fill = 'axis') /Håkan -- 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] memory leak in mixed integer programming?
The following code eats up several giga byte of memory within a few minutes: while True: P=MixedIntegerLinearProgram() x=P.new_variable(dim=1,integer=True) P.add_constraint(x[0]+x[1]==1) P.set_objective(x[0]) w=P.solve() del P del x I'm using a self-compiled version of sage 4.7 on a 64bit Ubuntu 11.04 intel machine. This happens no matter if I use solver="GLPK" or solver="coin" (cbc is installed), so it does not seem to be a problem of the underlying milp- solver. -- 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] dumps() and loads() of symbolic functions problem
Hi,
When doing
x = var('x'); f = function('f',x) ; s = dumps(f) ; loads(s)
I get a "RuntimeError: unknown function 'f' in archive".
I have equal problem with save()/load() and db_save()/db().
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Re: [sage-support] Re: fill between
I'm trying to fill in the bell curve between two points, like plus and minus 1 sigma. -d At 09:19 PM 10/10/2011, you wrote: What exactly are you trying to fill? Can you find a picture showing an example of what you are trying to achieve? -- 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
