[sage-support] more control over plots
Hello, I've tried looking at all the plot options in the documentation, but I can't find how to do the following. Maybe someone can help... * control over the scaling of the y-axis. I can choose xmin and xmax, but the range of the y-axis is always chosen automatically. * control over where the y-axis is located. It sometimes just ends up right smack in the middle of the graph and looks dumb, I'd prefer for it to be on the left. * turning off the numbers on the axes. I'd like the axes to show, but not the values. * having a light gray grid displayed in the background of a plot Cheers, Maike --~--~-~--~~~---~--~~ 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: more control over plots
Hi Maike,
I found that the use of pylab allows a lot more control over your
plots. Example:
import pylab
x1 = srange(0,1.1,0.01)
d1 = [2*x+x^2 for x in x1]
d2 = [3*x+0.9*x^2 for x in x1]
title='Test plot'
pylab.clf() # clear the figure first
pylab.figure(1)
# plot some data and add a legend
pylab.plot(x1,d1, label=d1)
pylab.plot(x1,d2,label=d2)
pylab.axvline(x=0.5,ls='-.')
pylab.legend(loc=0) # print the legend
pylab.title(title)
pylab.ylabel($f(x)$) # label the axes
pylab.xlabel($x$)
pylab.savefig('foo.png') # fire!
I have not found out how to make the adjustments you asked for, but
there is some helpful literature around that explains how to use pylab
in detail (look for matplotlib on the web). I heard that the plot
functionality in sage is being worked on but I don't know how far it
is at the moment. Perhaps it is possible to do all this already. I do
know that you can set the axes ranges for both the x- and y-axes quite
easily:
P=fun.plot(x,0,1)
P.axes_range(xmin1,xmax1,ymin1,ymax1)
P.axes_labels(['$A_v$', '$B_v$'])
P
Where fun is the function to plot, x is the variable on the x-axis,
and P.axes_range defines the ranges of the axes.
Hope this helps until someone more knowledgeable helps out.
Stan
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[sage-support] problem with attach
I have a worksheet Getaltheorie in my Worksheet List. When i give the command attach Getaltheorie (or attach 'Getaltheorie', or or attach 'Getaltheorie.sage' or ...) in another worksheet, i get the error message 'Error attaching /Users/jokr004/.sage/Getaltheorie -- file not found'. I'm sure I'm doing something wrong but i have no idea how to solve it. Is there a way to load the commands defined in ane worksheet into another worksheet? Thanks --~--~-~--~~~---~--~~ 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] small problem with pylab plots in sage 3.1.2
Dear all,
When I upgraded to 3.1.2, I found that some of my plots generated
using pylab in the notebooks miss their bottom bits. It seems to be
related to the dpi setting. Example:
import pylab
x1 = srange(0,1.1,0.01)
d1 = [2*x+x^2 for x in x1]
pylab.clf() # clear the figure first
pylab.figure(1)
pylab.plot(x1,d1, label=d1)
pylab.ylabel($f(x)$) # label the axes
pylab.xlabel($x$)
pylab.savefig('foo.png',dpi=72) # fire!
If I leave the dpi=72 out in the last line, the plot is larger and
complete. This problem did not occur in sage 3.1.1, so I assume that
it is a bug. Could someone confirm and if so, create a ticket? Thanks!
Regards,
Stan
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[sage-support] Re: small problem with pylab plots in sage 3.1.2
I can confirm this bug and opened http://trac.sagemath.org/sage_trac/ticket/4194 Cheers, Martin -- name: Martin Albrecht _pgp: http://pgp.mit.edu:11371/pks/lookup?op=getsearch=0x8EF0DC99 _www: http://www.informatik.uni-bremen.de/~malb _jab: [EMAIL PROTECTED] --~--~-~--~~~---~--~~ 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: more control over plots
Maike wrote: Hello, I've tried looking at all the plot options in the documentation, but I can't find how to do the following. Maybe someone can help... * control over the scaling of the y-axis. I can choose xmin and xmax, but the range of the y-axis is always chosen automatically. * control over where the y-axis is located. It sometimes just ends up right smack in the middle of the graph and looks dumb, I'd prefer for it to be on the left. For these two, use the ymin and ymax options in show when you show the plot. Something like: sage: plot(sin(x), (x, -pi, pi)).show(ymin=-1, ymax=3) Thanks, Jason --~--~-~--~~~---~--~~ 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] bug in _fast_float_ with plot in sage 3.2.1?
Since upgrading to 3.2.1, the following does not work any more:
from sage.ext.fast_eval import fast_float
bv1=x^3-2*x^2+3*x
bv2=x^4-2*x^3+3
bv1p=bv1._fast_float_('x')
bv2p=bv2._fast_float_('x')
plot([bv1p,bv2p],0,1)
Traceback (click to the left for traceback)
...
TypeError: Needs at least 1 arguments (0 provided)
This works:
plot([bv1,bv2],0,1)
or
plot(bv1p,0,1)
or
plot(bv2p,0,1)
Since this worked in sage 3.1.1, I suppose that it is a bug introduced
in 3.2.1. Or am I doing something wrong?
Thanks for your help!
Stan
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[sage-support] Re: a problem starting the notebook
-- | SAGE Version 3.1.2, Release Date: 2008-09-19 | | Type notebook() for the GUI, and license() for information.| -- sage: notebook() The notebook files are stored in: /home/cesarnda/.sage//sage_notebook ** ** * Open your web browser to http://localhost:8000 * ** ** 2008-09-25 07:38:53-0500 [-] Log opened. 2008-09-25 07:38:53-0500 [-] twistd 8.1.0 (/home/cesarnda/Sage/ sage-3.0.6-i686-Linux/local/bin/python 2.5.2) starting up 2008-09-25 07:38:53-0500 [-] reactor class: class 'twisted.internet.selectreactor.SelectReactor' 2008-09-25 07:38:53-0500 [-] twisted.web2.channel.http.HTTPFactory starting on 8000 2008-09-25 07:38:53-0500 [-] Starting factory twisted.web2.channel.http.HTTPFactory instance at 0x8c274ac 2008-09-25 07:38:57-0500 [HTTPChannel,1,127.0.0.1] /home/cesarnda/Sage/ sage-3.0.6-i686-Linux/local/lib/python2.5/site-packages/Twisted-8.1.0- py2.5-linux-i686.egg/twisted/internet/defer.py:267: exceptions.DeprecationWarning: Don't pass strings (like 'Bad token') to failure.Failure (replacing with a DefaultException). 2008-09-25 07:38:57-0500 [HTTPChannel,1,127.0.0.1] Exception rendering: 2008-09-25 07:38:57-0500 [HTTPChannel,1,127.0.0.1] Unhandled Error Traceback (most recent call last): Failure: twisted.python.failure.DefaultException: Bad token On Sep 24, 7:32 pm, mabshoff [EMAIL PROTECTED] dortmund.de wrote: On Sep 24, 5:25 pm, cesarnda [EMAIL PROTECTED] wrote: so? What version of Sage are you using? What operating system are you on? Could you provide the complete log, i.e. the output from when you start Sage and then invoke the notebook? Cheers, Michael On 23 sep, 01:35, cesarnda [EMAIL PROTECTED] wrote: I start sage and I type notebook and firefox is open to the following address: http://localhost:8000/?startup_token=1af26f2b14cac678ab97c121c9cca7c5 which is not found, so I have to cut it just tohttp://localhost:8000, is there a way to solve this problem? --~--~-~--~~~---~--~~ 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: listing all elements of a finitely generated ideal
On Thursday 25 September 2008, vpv wrote: sage: B.x0,x1,x2 = BooleanPolynomialRing(3) sage: f1 = x0*x1 + x2 sage: f2 = x1*x2 sage: f3 = x0*x1*x2 + x0*x2 sage: I = ideal(f1,f2,f3) If you compute the Gröbner basis: sage: I.groebner_basis() [x0*x1, x2] You'll see that all elements of the form f = sum p_i*x0*x1 + sum q_i*x2 for p_i and q_i polynomials in B are in I. Cheers, Martin -- name: Martin Albrecht _pgp: http://pgp.mit.edu:11371/pks/lookup?op=getsearch=0x8EF0DC99 _www: http://www.informatik.uni-bremen.de/~malb _jab: [EMAIL PROTECTED] --~--~-~--~~~---~--~~ 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: more control over plots
Hi Jason,
Thanks for the help! Which parameter is it that tells the axis to be
on the left? My example is:
rsa = line([(2000,952),(2005,1149),(2010,1369),(2015,1613),(2020,1881),
(2025,2174),(2030,2493),(2035,2840),(2040,3214)],rgbcolor=green)
ecc = line([(2000,132),(2005,139),(2010,146),(2015,154),(2020,161),
(2025,169),(2030,176),(2035,184),(2040,191)],rgbcolor=red)
(rsa+ecc).save('bild.png',xmin=2000,xmax=2040,axes_labels=['year','key
length in bits'],figsize=5)
Here I'd like the axis to be on the left. Can you tell me how to do
this here? Thanks!
Maike
On Sep 25, 1:18 pm, Jason Grout [EMAIL PROTECTED] wrote:
Jason Grout wrote:
Maike wrote:
Hello,
I've tried looking at all the plot options in the documentation, but I
can't find how to do the following. Maybe someone can help...
* control over the scaling of the y-axis. I can choose xmin and xmax,
but the range of the y-axis is always chosen automatically.
* control over where the y-axis is located. It sometimes just ends up
right smack in the middle of the graph and looks dumb, I'd prefer for
it to be on the left.
For these two, use the ymin and ymax options in show when you show
the plot. Something like:
sage: plot(sin(x), (x, -pi, pi)).show(ymin=-1, ymax=3)
Sorry, I misread your second point. The following example puts the
y-axis on the left:
sage: plot(sin(x), (x, 0, pi)).show(ymin=-1,ymax=-3)
Does that help?
Jason
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[sage-support] Re: more control over plots
Maike wrote:
Hi Jason,
Thanks for the help! Which parameter is it that tells the axis to be
on the left? My example is:
rsa = line([(2000,952),(2005,1149),(2010,1369),(2015,1613),(2020,1881),
(2025,2174),(2030,2493),(2035,2840),(2040,3214)],rgbcolor=green)
ecc = line([(2000,132),(2005,139),(2010,146),(2015,154),(2020,161),
(2025,169),(2030,176),(2035,184),(2040,191)],rgbcolor=red)
(rsa+ecc).save('bild.png',xmin=2000,xmax=2040,axes_labels=['year','key
length in bits'],figsize=5)
Here I'd like the axis to be on the left. Can you tell me how to do
this here? Thanks!
This doesn't totally answer you, but you could do a kludge by adding
frame=True, axes=False to the save command. That takes off the axes,
but puts a frame around the plot. After glancing through the source
code in plot.py and axes.py in the devel/sage/sage/plot directory, it
looks like the centered axes are automatically calculated and there
isn't a way to change it currently. If you need more flexibility, then
I'd suggest either using pylab for now (like the other post pointed out)
or diving in and patching the code in Sage.
Jason
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[sage-support] Calculating mods
I am brand new to this. I was wondering how to calculate mods while in the sage notebook. I need to calculate 520622^430085 mod 998171. Does anyone know how to type this into the command line. I keep getting a syntax error. I have no idea how to do this because I am brand new to sage. Thank you. --~--~-~--~~~---~--~~ 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: Calculating mods
sage: 520622^430085 % 998171 897985 It is very much faster to do it more like this: sage: R=Integers(998171) sage: a=R(520622) sage: a^430085 897985 The first way (I think) computes 520622^430085 as an integer and then reduces, while the second way constructs the ring of integers mod 998171, defines a as the residue of 520622 in that ring, and then exponentiates. John Cremona 2008/9/25 Mikemak27 [EMAIL PROTECTED]: I am brand new to this. I was wondering how to calculate mods while in the sage notebook. I need to calculate 520622^430085 mod 998171. Does anyone know how to type this into the command line. I keep getting a syntax error. I have no idea how to do this because I am brand new to sage. Thank you. --~--~-~--~~~---~--~~ 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: bug in _fast_float_ with plot in sage 3.2.1?
Hi Stan,
On Thu, Sep 25, 2008 at 5:27 AM, Stan Schymanski [EMAIL PROTECTED] wrote:
from sage.ext.fast_eval import fast_float
bv1=x^3-2*x^2+3*x
bv2=x^4-2*x^3+3
bv1p=bv1._fast_float_('x')
bv2p=bv2._fast_float_('x')
plot([bv1p,bv2p],0,1)
Traceback (click to the left for traceback)
...
TypeError: Needs at least 1 arguments (0 provided)
Since this worked in sage 3.1.1, I suppose that it is a bug introduced
in 3.2.1. Or am I doing something wrong?
Yes, it should work -- I'll fix this. However, you shouldn't have to
manually use fast float now. When you do plot([bv1,bv2],0,1), the
fast_float stuff will now (in 3.1.2) automatically get called in the
background.
--Mike
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[sage-support] Re: question about DiGraph
Hello,
On Thu, Sep 25, 2008 at 9:50 AM, pong [EMAIL PROTECTED] wrote:
I'm still having problem in displaying the label of the edges using
DiGraph. I have read more from this group and tried:
G=DiGraph({1:{1:['hola','hi'], 2:['two','dos']},2:{1:['one']}},
loops=True, multiedges=True)
G.edges()
[(1, 1, 'hi'), (1, 1, 'hola'), (1, 2, 'dos'), (1, 2, 'two'), (2, 1,
'one')]
G.show()
I expect to see two loops from 1 to 1 labeled by 'hola' and 'hi',
etc...
but the result of G.show() only show one loop and no lables on the
edges.
Can someone tell me what am I missing?
You need to explicitly ask for edge labels to appear on the plot:
G.show(edge_labels=True)
The plotting code for graphs definitely needs some work, but luckily
there is someone working on it. It looks like there is only one edge
and one loop since they are drawn directly over each other. The same
thing is going on with the labels. I hope we can get this fixed in
the next release or two.
--Mike
Thanks in advance
On Sep 23, 9:15 pm, pong [EMAIL PROTECTED] wrote:
I tried one of the examples (example 3 inDiGraph?)
g =DiGraph({0:{1:'x',2:'z',3:'a'}, 2:{5:'out'}},
implementation='networkx'); show(g)
However, I don't see any label of the edges, why?
Also, I think theDiGraphfunction is very useful for drawing finite
automata (thanks!) My question is: does it support loop to a node?
(which is essential in drawing automata)
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[sage-support] Re: a problem starting the notebook
I am using Kubuntu 8.04 On 25 sep, 07:39, cesarnda [EMAIL PROTECTED] wrote: -- | SAGE Version 3.1.2, Release Date: 2008-09-19 | | Typenotebook() for the GUI, and license() for information. | -- sage:notebook() Thenotebookfiles are stored in: /home/cesarnda/.sage//sage_notebook ** * * * Open your web browser tohttp://localhost:8000* * * ** 2008-09-25 07:38:53-0500 [-] Log opened. 2008-09-25 07:38:53-0500 [-] twistd 8.1.0 (/home/cesarnda/Sage/ sage-3.0.6-i686-Linux/local/bin/python 2.5.2)startingup 2008-09-25 07:38:53-0500 [-] reactor class: class 'twisted.internet.selectreactor.SelectReactor' 2008-09-25 07:38:53-0500 [-] twisted.web2.channel.http.HTTPFactorystartingon 8000 2008-09-25 07:38:53-0500 [-]Startingfactory twisted.web2.channel.http.HTTPFactory instance at 0x8c274ac 2008-09-25 07:38:57-0500 [HTTPChannel,1,127.0.0.1] /home/cesarnda/Sage/ sage-3.0.6-i686-Linux/local/lib/python2.5/site-packages/Twisted-8.1.0- py2.5-linux-i686.egg/twisted/internet/defer.py:267: exceptions.DeprecationWarning: Don't pass strings (like 'Bad token') to failure.Failure (replacing with a DefaultException). 2008-09-25 07:38:57-0500 [HTTPChannel,1,127.0.0.1] Exception rendering: 2008-09-25 07:38:57-0500 [HTTPChannel,1,127.0.0.1] Unhandled Error Traceback (most recent call last): Failure: twisted.python.failure.DefaultException: Bad token On Sep 24, 7:32 pm, mabshoff [EMAIL PROTECTED] dortmund.de wrote: On Sep 24, 5:25 pm, cesarnda [EMAIL PROTECTED] wrote: so? What version of Sage are you using? What operating system are you on? Could you provide the complete log, i.e. the output from when you start Sage and then invoke thenotebook? Cheers, Michael On 23 sep, 01:35, cesarnda [EMAIL PROTECTED] wrote: I start sage and I typenotebookand firefox is open to the following address: http://localhost:8000/?startup_token=1af26f2b14cac678ab97c121c9cca7c5 which is not found, so I have to cut it just tohttp://localhost:8000, is there a way to solve this problem? --~--~-~--~~~---~--~~ 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: a problem starting the notebook
On Sep 25, 10:09 am, cesarnda [EMAIL PROTECTED] wrote: I am using Kubuntu 8.04 On 25 sep, 07:39, cesarnda [EMAIL PROTECTED] wrote: -- | SAGE Version 3.1.2, Release Date: 2008-09-19 | | Typenotebook() for the GUI, and license() for information. | -- sage:notebook() Thenotebookfiles are stored in: /home/cesarnda/.sage//sage_notebook ** * * * Open your web browser tohttp://localhost:8000* * * ** 2008-09-25 07:38:53-0500 [-] Log opened. 2008-09-25 07:38:53-0500 [-] twistd 8.1.0 (/home/cesarnda/Sage/ sage-3.0.6-i686-Linux/local/bin/python 2.5.2)startingup 2008-09-25 07:38:53-0500 [-] reactor class: class 'twisted.internet.selectreactor.SelectReactor' 2008-09-25 07:38:53-0500 [-] twisted.web2.channel.http.HTTPFactorystartingon 8000 2008-09-25 07:38:53-0500 [-]Startingfactory twisted.web2.channel.http.HTTPFactory instance at 0x8c274ac 2008-09-25 07:38:57-0500 [HTTPChannel,1,127.0.0.1] /home/cesarnda/Sage/ sage-3.0.6-i686-Linux/local/lib/python2.5/site-packages/Twisted-8.1.0- py2.5-linux-i686.egg/twisted/internet/defer.py:267: exceptions.DeprecationWarning: Don't pass strings (like 'Bad token') to failure.Failure (replacing with a DefaultException). 2008-09-25 07:38:57-0500 [HTTPChannel,1,127.0.0.1] Exception rendering: 2008-09-25 07:38:57-0500 [HTTPChannel,1,127.0.0.1] Unhandled Error Traceback (most recent call last): Failure: twisted.python.failure.DefaultException: Bad token Hmm, nothing obvious pops out. Can you move the .sage directory in $HOME and see if the problem goes away? Cheers, Michael --~--~-~--~~~---~--~~ 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: question about DiGraph
Thanks!!
A more general question, how can I find out all the possible options
for a command, like show for example?
I've tried show.option? which doesn't seem to work.
On Sep 25, 9:56 am, Mike Hansen [EMAIL PROTECTED] wrote:
Hello,
On Thu, Sep 25, 2008 at 9:50 AM, pong [EMAIL PROTECTED] wrote:
I'm still having problem in displaying the label of the edges using
DiGraph. I have read more from this group and tried:
G=DiGraph({1:{1:['hola','hi'], 2:['two','dos']},2:{1:['one']}},
loops=True, multiedges=True)
G.edges()
[(1, 1, 'hi'), (1, 1, 'hola'), (1, 2, 'dos'), (1, 2, 'two'), (2, 1,
'one')]
G.show()
I expect to see two loops from 1 to 1 labeled by 'hola' and 'hi',
etc...
but the result of G.show() only show one loop and no lables on the
edges.
Can someone tell me what am I missing?
You need to explicitly ask for edge labels to appear on the plot:
G.show(edge_labels=True)
The plotting code for graphs definitely needs some work, but luckily
there is someone working on it. It looks like there is only one edge
and one loop since they are drawn directly over each other. The same
thing is going on with the labels. I hope we can get this fixed in
the next release or two.
--Mike
Thanks in advance
On Sep 23, 9:15 pm, pong [EMAIL PROTECTED] wrote:
I tried one of the examples (example 3 inDiGraph?)
g =DiGraph({0:{1:'x',2:'z',3:'a'}, 2:{5:'out'}},
implementation='networkx'); show(g)
However, I don't see any label of the edges, why?
Also, I think theDiGraphfunction is very useful for drawing finite
automata (thanks!) My question is: does it support loop to a node?
(which is essential in drawing automata)
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[sage-support] Re: Calculating mods
Or, if you want to do it in a single line (which does the same as the more explicit code below) sage: mod(520622, 998171) ^ 430085 897985 On Sep 25, 2008, at 9:43 AM, John Cremona wrote: sage: 520622^430085 % 998171 897985 It is very much faster to do it more like this: sage: R=Integers(998171) sage: a=R(520622) sage: a^430085 897985 The first way (I think) computes 520622^430085 as an integer and then reduces, while the second way constructs the ring of integers mod 998171, defines a as the residue of 520622 in that ring, and then exponentiates. John Cremona 2008/9/25 Mikemak27 [EMAIL PROTECTED]: I am brand new to this. I was wondering how to calculate mods while in the sage notebook. I need to calculate 520622^430085 mod 998171. Does anyone know how to type this into the command line. I keep getting a syntax error. I have no idea how to do this because I am brand new to sage. Thank you. --~--~-~--~~~---~--~~ 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: Windows: Where are worksheets stored?
On Sep 24, 1:27 pm, Jannick Asmus [EMAIL PROTECTED] wrote: Hi, switching to the latest release 3.1.2 on windows machines I would like to save my workbooks. but where are they stored? Sorry for my ignorance since my question seems to be a FAQ. As always, thanks for your help. Best wishes, J. Hi, the VMware application of Sage on Windows stores the worksheets just like the native OSX and Linux versions in $HOME/.sage. Unfortunately it is not possible yet to do a one step download and re-upload of all worksheets, but that is an open issue to be fixed in the future. So you can either down and upload them one by one (tedious for obvious reasons) or use a tool like WinSCP to log into the running VMware seesion and copy the .sage directory from the old to the new image. Let us know if you have any more trouble. Cheers, Michael --~--~-~--~~~---~--~~ 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: Windows: Where are worksheets stored?
On Thu, Sep 25, 2008 at 10:22 AM, mabshoff [EMAIL PROTECTED] wrote: On Sep 24, 1:27 pm, Jannick Asmus [EMAIL PROTECTED] wrote: Hi, switching to the latest release 3.1.2 on windows machines I would like to save my workbooks. but where are they stored? Sorry for my ignorance since my question seems to be a FAQ. As always, thanks for your help. Best wishes, J. Hi, the VMware application of Sage on Windows stores the worksheets just like the native OSX and Linux versions in $HOME/.sage. Unfortunately it is not possible yet to do a one step download and re-upload of all worksheets, but that is an open issue to be fixed in the future. So you can either down and upload them one by one (tedious for obvious reasons) or use a tool like WinSCP to log into the running VMware seesion and copy the .sage directory from the old to the new image. Let us know if you have any more trouble. Another option for people upgrading from sage-3.0.6 to sage-3.1.2 using the vmware image is just to do this: (1) login to the vmware image using login: manage (2) type at the prompt sudo su (3) type sage -upgrade (4) wait a few hours It turns out that upgrading the vmware image from sage-3.0.6 to sage-3.1.2 using the build from source automated method works just fine. (At least, it did for me.) -- william --~--~-~--~~~---~--~~ 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: question about DiGraph
Mike Hansen wrote:
Hello,
On Thu, Sep 25, 2008 at 9:50 AM, pong [EMAIL PROTECTED] wrote:
I'm still having problem in displaying the label of the edges using
DiGraph. I have read more from this group and tried:
G=DiGraph({1:{1:['hola','hi'], 2:['two','dos']},2:{1:['one']}},
loops=True, multiedges=True)
G.edges()
[(1, 1, 'hi'), (1, 1, 'hola'), (1, 2, 'dos'), (1, 2, 'two'), (2, 1,
'one')]
G.show()
I expect to see two loops from 1 to 1 labeled by 'hola' and 'hi',
etc...
but the result of G.show() only show one loop and no lables on the
edges.
Can someone tell me what am I missing?
You need to explicitly ask for edge labels to appear on the plot:
G.show(edge_labels=True)
The plotting code for graphs definitely needs some work, but luckily
there is someone working on it. It looks like there is only one edge
and one loop since they are drawn directly over each other. The same
thing is going on with the labels. I hope we can get this fixed in
the next release or two.
Who is working on it?
Jason
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[sage-support] Re: Windows: Where are worksheets stored?
mabshoff wrote: On Sep 24, 1:27 pm, Jannick Asmus [EMAIL PROTECTED] wrote: Hi, switching to the latest release 3.1.2 on windows machines I would like to save my workbooks. but where are they stored? Sorry for my ignorance since my question seems to be a FAQ. As always, thanks for your help. Best wishes, J. Hi, the VMware application of Sage on Windows stores the worksheets just like the native OSX and Linux versions in $HOME/.sage. Unfortunately it is not possible yet to do a one step download and re-upload of all worksheets, but that is an open issue to be fixed in the future. So you can either down and upload them one by one (tedious for obvious reasons) or use a tool like WinSCP to log into the running VMware seesion and copy the .sage directory from the old to the new image. I think it's actually in /home/notebook/sage_notebook for the VMWARE image, if you launch the notebook by typing notebook at the prompt. Jason --~--~-~--~~~---~--~~ 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: Seg fault with determinant calculation
On Sep 22, 4:23 pm, phil [EMAIL PROTECTED] wrote: On Sep 15, 10:26 am, Martin Albrecht [EMAIL PROTECTED] wrote: The original machine I was using was needed for other things. So, I ran it on sage 3.1.2rc4 on sage.math.washington.edu and it completed successfully after 169446 seconds. So, the problem was specific to the setup I was using or it was fixed in 3.1.2rc4. The scaling of the problem seems worse than it should be though. The 9x9 problem takes 40 seconds while the 10x0 problem takes 4236 times longer. That's worse than O(n!) let along O(n^3). If your curious, the test problem is athttp://sage.math.washington.edu/home/fongpwf/sage_work/determinant_10... One more thing I've noticed is that loading the saved result either doesn't work is is extremely inefficient. On Monday, I started up 3.1.2 final and ran load detMp.sobj. It's been rough 3 days and it's still going. This means loading takes longer than the original computation. Phil --~--~-~--~~~---~--~~ 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: saving worksheets?
On Sep 25, 3:19 pm, RayKiddy [EMAIL PROTECTED] wrote: Hi, This seems pretty basic, but I am having issues with deleting worksheets and then not having them pop up again. Yes, I could read a few hundred pages of manuals, but how hard should this be. I followed the instructions for installing sage on Mac OS X (10.4.11) and that works. So I do: % ./sage -- | SAGE Version 3.1.1, Release Date: 2008-08-17 | | Type notebook() for the GUI, and license() for information. | -- sage: notebook() The notebook files are stored in: /Users/ray/.sage//sage_notebook ** * * * Open your web browser tohttp://localhost:8000* * * ** So, I click on the checkbox next to one of the worksheets and hit the Delete button. I click on the Log out link. Now, I see this on sage's console: 2008-09-25 15:06:15-0700 [-] Log opened. 2008-09-25 15:06:15-0700 [-] twistd 8.0.1 (/Users/ray/Applications/ sage/local/bin/python 2.5.2) starting up 2008-09-25 15:06:15-0700 [-] reactor class: class 'twisted.internet.selectreactor.SelectReactor' 2008-09-25 15:06:15-0700 [-] twisted.web2.channel.http.HTTPFactory starting on 8000 2008-09-25 15:06:15-0700 [-] Starting factory twisted.web2.channel.http.HTTPFactory instance at 0x38234b8 2008-09-25 15:08:05-0700 [HTTPChannel,1,127.0.0.1] I never get back to a prompt? How do I? The only way I have found is to type a ^C. ^C2008-09-25 15:15:15-0700 [-] Saving notebook... 2008-09-25 15:15:15-0700 [-] Saving notebook... 2008-09-25 15:15:15-0700 [-] Notebook cleanly saved. 2008-09-25 15:15:15-0700 [-] Notebook cleanly saved. 2008-09-25 15:15:15-0700 [-] Main loop terminated. 2008-09-25 15:15:15-0700 [-] Server Shut Down. True sage: quit Exiting SAGE (CPU time 0m0.03s, Wall time 9m15.28s). % Hm. Looks as though it saved. I re-start sage and there it is. The worksheet I thought I deleted is back. This was a bug fixed in the 3.1.2 release. There is no 3.1.2 binary for OSX 10.4 PPC yet, but there should be in the not too distant future. So, I see a Delete button, a Save button, a Save Quit button. I have tried all of these. No effect. Is there a Delete Really button? Where is it? I tried to get back to the sage: prompt with a ^D. What else should I try? ^X-elbow-Z? What is the magic word for getting it to do this rather obvious thing? If someone can explain it, I can find a rather obvious place to put this info in the documentation. I found several obvious places, and no documentation. Thanks. Cheers, Michael --~--~-~--~~~---~--~~ 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: saving worksheets?
On Sep 25, 3:35 pm, mabshoff [EMAIL PROTECTED] dortmund.de wrote: On Sep 25, 3:19 pm, RayKiddy [EMAIL PROTECTED] wrote: Hi, This seems pretty basic, but I am having issues with deleting worksheets and then not having them pop up again. Yes, I could read a few hundred pages of manuals, but how hard should this be. I followed the instructions for installing sage on Mac OS X (10.4.11) and that works. So I do: % ./sage -- | SAGE Version 3.1.1, Release Date: 2008-08-17 | | Type notebook() for the GUI, and license() for information. | -- sage: notebook() The notebook files are stored in: /Users/ray/.sage//sage_notebook ** * * * Open your web browser tohttp://localhost:8000* * * ** So, I click on the checkbox next to one of the worksheets and hit the Delete button. I click on the Log out link. Now, I see this on sage's console: 2008-09-25 15:06:15-0700 [-] Log opened. 2008-09-25 15:06:15-0700 [-] twistd 8.0.1 (/Users/ray/Applications/ sage/local/bin/python 2.5.2) starting up 2008-09-25 15:06:15-0700 [-] reactor class: class 'twisted.internet.selectreactor.SelectReactor' 2008-09-25 15:06:15-0700 [-] twisted.web2.channel.http.HTTPFactory starting on 8000 2008-09-25 15:06:15-0700 [-] Starting factory twisted.web2.channel.http.HTTPFactory instance at 0x38234b8 2008-09-25 15:08:05-0700 [HTTPChannel,1,127.0.0.1] I never get back to a prompt? How do I? The only way I have found is to type a ^C. [Sorry for the double post, but I missed to answer this one] When you start the notebook you do not get back the prompt. I do not know why, but I guess there is a good reason :) ^C2008-09-25 15:15:15-0700 [-] Saving notebook... 2008-09-25 15:15:15-0700 [-] Saving notebook... 2008-09-25 15:15:15-0700 [-] Notebook cleanly saved. 2008-09-25 15:15:15-0700 [-] Notebook cleanly saved. 2008-09-25 15:15:15-0700 [-] Main loop terminated. 2008-09-25 15:15:15-0700 [-] Server Shut Down. True sage: quit Exiting SAGE (CPU time 0m0.03s, Wall time 9m15.28s). % Hm. Looks as though it saved. I re-start sage and there it is. The worksheet I thought I deleted is back. This was a bug fixed in the 3.1.2 release. There is no 3.1.2 binary for OSX 10.4 PPC yet, but there should be in the not too distant future. So, I see a Delete button, a Save button, a Save Quit button. I have tried all of these. No effect. Is there a Delete Really button? Where is it? I tried to get back to the sage: prompt with a ^D. What else should I try? ^X-elbow-Z? What is the magic word for getting it to do this rather obvious thing? If someone can explain it, I can find a rather obvious place to put this info in the documentation. I found several obvious places, and no documentation. Thanks. Cheers, Michael --~--~-~--~~~---~--~~ 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] lists in cython
in http://www.cosc.canterbury.ac.nz/greg.ewing/python/Pyrex/ there is the following example: def primes(int kmax): cdef int n, k, i cdef int p[1000] result = [] if kmax 1000: kmax = 1000 k = 0 n = 2 while k kmax: i = 0 while i k and n % p[i] 0: i = i + 1 if i == k: p[k] = n k = k + 1 result.append(n) n = n + 1 return result if I compile in the notebook I get a html file showing me the following lines in yellow: def primes(int kmax): result = [] result.append(n) return result how can I modify this example to avoid the yellow lines? --~--~-~--~~~---~--~~ 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] saving worksheets?
This seems pretty basic, but I am having issues with deleting worksheets and then not having them pop up again. Yes, I could read a few hundred pages of manuals, but how hard should this be. I followed the instructions for installing sage on Mac OS X (10.4.11) and that works. So I do: % ./sage -- | SAGE Version 3.1.1, Release Date: 2008-08-17 | | Type notebook() for the GUI, and license() for information.| -- sage: notebook() The notebook files are stored in: /Users/ray/.sage//sage_notebook ** ** * Open your web browser to http://localhost:8000 * ** ** So, I click on the checkbox next to one of the worksheets and hit the Delete button. I click on the Log out link. Now, I see this on sage's console: 2008-09-25 15:06:15-0700 [-] Log opened. 2008-09-25 15:06:15-0700 [-] twistd 8.0.1 (/Users/ray/Applications/ sage/local/bin/python 2.5.2) starting up 2008-09-25 15:06:15-0700 [-] reactor class: class 'twisted.internet.selectreactor.SelectReactor' 2008-09-25 15:06:15-0700 [-] twisted.web2.channel.http.HTTPFactory starting on 8000 2008-09-25 15:06:15-0700 [-] Starting factory twisted.web2.channel.http.HTTPFactory instance at 0x38234b8 2008-09-25 15:08:05-0700 [HTTPChannel,1,127.0.0.1] I never get back to a prompt? How do I? The only way I have found is to type a ^C. ^C2008-09-25 15:15:15-0700 [-] Saving notebook... 2008-09-25 15:15:15-0700 [-] Saving notebook... 2008-09-25 15:15:15-0700 [-] Notebook cleanly saved. 2008-09-25 15:15:15-0700 [-] Notebook cleanly saved. 2008-09-25 15:15:15-0700 [-] Main loop terminated. 2008-09-25 15:15:15-0700 [-] Server Shut Down. True sage: quit Exiting SAGE (CPU time 0m0.03s, Wall time 9m15.28s). % Hm. Looks as though it saved. I re-start sage and there it is. The worksheet I thought I deleted is back. So, I see a Delete button, a Save button, a Save Quit button. I have tried all of these. No effect. Is there a Delete Really button? Where is it? I tried to get back to the sage: prompt with a ^D. What else should I try? ^X-elbow-Z? What is the magic word for getting it to do this rather obvious thing? If someone can explain it, I can find a rather obvious place to put this info in the documentation. I found several obvious places, and no documentation. Thanks. --~--~-~--~~~---~--~~ 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: saving worksheets?
mabshoff wrote: On Sep 25, 3:19 pm, RayKiddy [EMAIL PROTECTED] wrote: Hi, This seems pretty basic, but I am having issues with deleting worksheets and then not having them pop up again. Yes, I could read a few hundred pages of manuals, but how hard should this be. I followed the instructions for installing sage on Mac OS X (10.4.11) and that works. So I do: % ./sage -- | SAGE Version 3.1.1, Release Date: 2008-08-17 | | Type notebook() for the GUI, and license() for information.| -- sage: notebook() The notebook files are stored in: /Users/ray/.sage//sage_notebook ** ** * Open your web browser tohttp://localhost:8000* ** ** So, I click on the checkbox next to one of the worksheets and hit the Delete button. I click on the Log out link. Now, I see this on sage's console: 2008-09-25 15:06:15-0700 [-] Log opened. 2008-09-25 15:06:15-0700 [-] twistd 8.0.1 (/Users/ray/Applications/ sage/local/bin/python 2.5.2) starting up 2008-09-25 15:06:15-0700 [-] reactor class: class 'twisted.internet.selectreactor.SelectReactor' 2008-09-25 15:06:15-0700 [-] twisted.web2.channel.http.HTTPFactory starting on 8000 2008-09-25 15:06:15-0700 [-] Starting factory twisted.web2.channel.http.HTTPFactory instance at 0x38234b8 2008-09-25 15:08:05-0700 [HTTPChannel,1,127.0.0.1] I never get back to a prompt? How do I? The only way I have found is to type a ^C. ^C2008-09-25 15:15:15-0700 [-] Saving notebook... 2008-09-25 15:15:15-0700 [-] Saving notebook... 2008-09-25 15:15:15-0700 [-] Notebook cleanly saved. 2008-09-25 15:15:15-0700 [-] Notebook cleanly saved. 2008-09-25 15:15:15-0700 [-] Main loop terminated. 2008-09-25 15:15:15-0700 [-] Server Shut Down. True sage: quit Exiting SAGE (CPU time 0m0.03s, Wall time 9m15.28s). % Hm. Looks as though it saved. I re-start sage and there it is. The worksheet I thought I deleted is back. This was a bug fixed in the 3.1.2 release. There is no 3.1.2 binary for OSX 10.4 PPC yet, but there should be in the not too distant future. I installed it from a binary on Monday on an OSX 10.4 PPC laptop. See http://sagemath.org/bin/apple_osx/powerpc/ It is pretty clearly labeled 3.1.2, osx 10.4, PPC. Thanks Jason --~--~-~--~~~---~--~~ 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] Two Dimensional Plots
I'm working my way through the tutorial and I'm having a problem with one of them. 2.5.1 at this page http://www.sagemath.org/doc/tut/node18.html has a circle plot, but I keep getting an ellipse on my screen because it's y axis is not at the same resolution as the x axis. It has the command: sage: circle((0,0), 1, rgbcolor=(1,1,0)) I found the discussion about another part of the tutorial here: http://groups.google.com/group/sage-support/browse_thread/thread/37c90df86e60e809/aa4287cee9f31ce2?lnk=gstq=circle+plot#aa4287cee9f31ce2 (Sorry for the long link.) When I use the suggestions in that thread it gives me a filled circle, not an ellipse. Is there anything I can do to make the first command listed above work? Why isn't the default to produce a circle when a circle is asked for, rather than an ellipse? I'm really not trying to complain, I LOVE the program so far! But this operation as default doesn't make any sense to me. I'm using sagenb.org as I go through the tutorial, if that matters. Thanks! Erik --~--~-~--~~~---~--~~ 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: Two Dimensional Plots
Hi Erik, On Thu, Sep 25, 2008 at 5:05 PM, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: I'm working my way through the tutorial and I'm having a problem with one of them. 2.5.1 at this page http://www.sagemath.org/doc/tut/node18.html has a circle plot, but I keep getting an ellipse on my screen because it's y axis is not at the same resolution as the x axis. It has the command: sage: circle((0,0), 1, rgbcolor=(1,1,0)) You want to show the image with an aspect ratio of one: sage: c = circle((0,0), 1, rgbcolor=(1,1,0)) sage: c.show(aspect_ratio=1) --Mike --~--~-~--~~~---~--~~ 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: Two Dimensional Plots
Yes, I saw that in the solution of the other one (and have changed my plots to take this into account), but what is the advantage of the aspect ratio default *not* being 1? I'm very curious. I'm not a mathematician, just a student going through college, so I would love to hear the why behind this. Also, does this have much of an effect on all my other plots? Do I have to pay attention every time to see if the axes are at different ratios to each other? (Although in many plots I guess they easily could be anyways.) Thanks, Erik On Thu, Sep 25, 2008 at 5:11 PM, Mike Hansen [EMAIL PROTECTED] wrote: Hi Erik, On Thu, Sep 25, 2008 at 5:05 PM, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: I'm working my way through the tutorial and I'm having a problem with one of them. 2.5.1 at this page http://www.sagemath.org/doc/tut/node18.html has a circle plot, but I keep getting an ellipse on my screen because it's y axis is not at the same resolution as the x axis. It has the command: sage: circle((0,0), 1, rgbcolor=(1,1,0)) You want to show the image with an aspect ratio of one: sage: c = circle((0,0), 1, rgbcolor=(1,1,0)) sage: c.show(aspect_ratio=1) --Mike --~--~-~--~~~---~--~~ 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] How to do: is_Integer(sqrt(a^2+b^2))
If c=sqrt(a^2+b^2) How would I check if c is an integer in order to get a true/false value. I tried is_Integer(ZZ(c)), this returns true when c is an integer, but ZZ(c) returns an error when c is not an integer. --~--~-~--~~~---~--~~ 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: How to do: is_Integer(sqrt(a^2+b^2))
On Thu, Sep 25, 2008 at 5:33 PM, Quicksilver_Johny [EMAIL PROTECTED] wrote: If c=sqrt(a^2+b^2) How would I check if c is an integer in order to get a true/false value. I tried is_Integer(ZZ(c)), this returns true when c is an integer, but ZZ(c) returns an error when c is not an integer. Try using Python's try/except: try: ZZ(c) # c is an integer except TypeError: # c isn't an integer --~--~-~--~~~---~--~~ 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: saving worksheets?
Ok. But I have an Intel Mac OS X machine. Sorry I did not say. I will look for binaries. cheers - ray On Sep 25, 2008, at 4:17 PM, Jason Grout wrote: mabshoff wrote: On Sep 25, 3:19 pm, RayKiddy [EMAIL PROTECTED] wrote: Hi, This seems pretty basic, but I am having issues with deleting worksheets and then not having them pop up again. Yes, I could read a few hundred pages of manuals, but how hard should this be. I followed the instructions for installing sage on Mac OS X (10.4.11) and that works. So I do: % ./sage -- | SAGE Version 3.1.1, Release Date: 2008-08-17 | | Type notebook() for the GUI, and license() for information.| -- sage: notebook() The notebook files are stored in: /Users/ray/.sage//sage_notebook ** ** * Open your web browser tohttp://localhost:8000* ** ** So, I click on the checkbox next to one of the worksheets and hit the Delete button. I click on the Log out link. Now, I see this on sage's console: 2008-09-25 15:06:15-0700 [-] Log opened. 2008-09-25 15:06:15-0700 [-] twistd 8.0.1 (/Users/ray/Applications/ sage/local/bin/python 2.5.2) starting up 2008-09-25 15:06:15-0700 [-] reactor class: class 'twisted.internet.selectreactor.SelectReactor' 2008-09-25 15:06:15-0700 [-] twisted.web2.channel.http.HTTPFactory starting on 8000 2008-09-25 15:06:15-0700 [-] Starting factory twisted.web2.channel.http.HTTPFactory instance at 0x38234b8 2008-09-25 15:08:05-0700 [HTTPChannel,1,127.0.0.1] I never get back to a prompt? How do I? The only way I have found is to type a ^C. ^C2008-09-25 15:15:15-0700 [-] Saving notebook... 2008-09-25 15:15:15-0700 [-] Saving notebook... 2008-09-25 15:15:15-0700 [-] Notebook cleanly saved. 2008-09-25 15:15:15-0700 [-] Notebook cleanly saved. 2008-09-25 15:15:15-0700 [-] Main loop terminated. 2008-09-25 15:15:15-0700 [-] Server Shut Down. True sage: quit Exiting SAGE (CPU time 0m0.03s, Wall time 9m15.28s). % Hm. Looks as though it saved. I re-start sage and there it is. The worksheet I thought I deleted is back. This was a bug fixed in the 3.1.2 release. There is no 3.1.2 binary for OSX 10.4 PPC yet, but there should be in the not too distant future. I installed it from a binary on Monday on an OSX 10.4 PPC laptop. See http://sagemath.org/bin/apple_osx/powerpc/ It is pretty clearly labeled 3.1.2, osx 10.4, PPC. Thanks Jason --~--~-~--~~~---~--~~ 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: How to do: is_Integer(sqrt(a^2+b^2))
On Sep 25, 2008, at 5:43 PM, William Stein wrote: On Thu, Sep 25, 2008 at 5:33 PM, Quicksilver_Johny [EMAIL PROTECTED] wrote: If c=sqrt(a^2+b^2) How would I check if c is an integer in order to get a true/false value. I tried is_Integer(ZZ(c)), this returns true when c is an integer, but ZZ(c) returns an error when c is not an integer. Try using Python's try/except: try: ZZ(c) # c is an integer except TypeError: # c isn't an integer These is_* sure are causing a lot of confusion lately... Rational numbers also have an is_integral method, so you could also do c=sqrt(a^2+b^2) if c.is_integral(): # c is an integer - Robert --~--~-~--~~~---~--~~ 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: lists in cython
why the line: def primes(int kmax): is in yellow? On Sep 25, 8:03 pm, Robert Bradshaw [EMAIL PROTECTED] wrote: On Sep 25, 2008, at 3:45 PM, cesarnda wrote: inhttp://www.cosc.canterbury.ac.nz/greg.ewing/python/Pyrex/there is the following example: def primes(int kmax): cdef int n, k, i cdef int p[1000] result = [] if kmax 1000: kmax = 1000 k = 0 n = 2 while k kmax: i = 0 while i k and n % p[i] 0: i = i + 1 if i == k: p[k] = n k = k + 1 result.append(n) n = n + 1 return result if I compile in the notebook I get a html file showing me the following lines in yellow: def primes(int kmax): result = [] result.append(n) return result how can I modify this example to avoid the yellow lines? You can't, but they're not very yellow (i.e. there's not really a faster way of doing those operations). - Robert --~--~-~--~~~---~--~~ 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] from lists to sets
is there a function that can convert a list to a set without verifying if there are equal elements?, i.e., I am creating a large set (cardinality = 9^5) of vectors, so the constructions takes too long ( around 25 seconds), but I know all the vectors are distinct, so is there a way to add an element into a set without verifying if the element is already in the set? or --~--~-~--~~~---~--~~ 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: saving worksheets?
That same site has Intel binaries as well. http://sagemath.org/bin/apple_osx/intel/ Erik On Thu, Sep 25, 2008 at 6:05 PM, Ray Kiddy [EMAIL PROTECTED] wrote: Ok. But I have an Intel Mac OS X machine. Sorry I did not say. I will look for binaries. cheers - ray On Sep 25, 2008, at 4:17 PM, Jason Grout wrote: mabshoff wrote: On Sep 25, 3:19 pm, RayKiddy [EMAIL PROTECTED] wrote: Hi, This seems pretty basic, but I am having issues with deleting worksheets and then not having them pop up again. Yes, I could read a few hundred pages of manuals, but how hard should this be. I followed the instructions for installing sage on Mac OS X (10.4.11) and that works. So I do: % ./sage -- | SAGE Version 3.1.1, Release Date: 2008-08-17 | | Type notebook() for the GUI, and license() for information.| -- sage: notebook() The notebook files are stored in: /Users/ray/.sage//sage_notebook ** ** * Open your web browser tohttp://localhost:8000* ** ** So, I click on the checkbox next to one of the worksheets and hit the Delete button. I click on the Log out link. Now, I see this on sage's console: 2008-09-25 15:06:15-0700 [-] Log opened. 2008-09-25 15:06:15-0700 [-] twistd 8.0.1 (/Users/ray/Applications/ sage/local/bin/python 2.5.2) starting up 2008-09-25 15:06:15-0700 [-] reactor class: class 'twisted.internet.selectreactor.SelectReactor' 2008-09-25 15:06:15-0700 [-] twisted.web2.channel.http.HTTPFactory starting on 8000 2008-09-25 15:06:15-0700 [-] Starting factory twisted.web2.channel.http.HTTPFactory instance at 0x38234b8 2008-09-25 15:08:05-0700 [HTTPChannel,1,127.0.0.1] I never get back to a prompt? How do I? The only way I have found is to type a ^C. ^C2008-09-25 15:15:15-0700 [-] Saving notebook... 2008-09-25 15:15:15-0700 [-] Saving notebook... 2008-09-25 15:15:15-0700 [-] Notebook cleanly saved. 2008-09-25 15:15:15-0700 [-] Notebook cleanly saved. 2008-09-25 15:15:15-0700 [-] Main loop terminated. 2008-09-25 15:15:15-0700 [-] Server Shut Down. True sage: quit Exiting SAGE (CPU time 0m0.03s, Wall time 9m15.28s). % Hm. Looks as though it saved. I re-start sage and there it is. The worksheet I thought I deleted is back. This was a bug fixed in the 3.1.2 release. There is no 3.1.2 binary for OSX 10.4 PPC yet, but there should be in the not too distant future. I installed it from a binary on Monday on an OSX 10.4 PPC laptop. See http://sagemath.org/bin/apple_osx/powerpc/ It is pretty clearly labeled 3.1.2, osx 10.4, PPC. Thanks Jason --~--~-~--~~~---~--~~ 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: Multiline output in notebook
D. M. Monarres wrote: Hello all, my advisor has a question in the sage notebook that I haven't really thought about (as I use the cmd line more often) Is there a way in a single notebook cell to display multiple output. ie cell 17 28 19 cell Out: 19 where he would like cell 17 28 19 cell Out: 17 Out: 28 Out: 19 The only way I thought of is to have all on one line separated by commas. This as input: print 17 print 28 print 19 William --~--~-~--~~~---~--~~ 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: lists in cython
cesarnda wrote: why the line: def primes(int kmax): is in yellow? If you click on the line, you can see the actual C code that Cython generated for you. Doing that, you'll notice that there are quite a few more python calls stemming from yellow lines than the white lines. The more yellow a line is, the slower it will probably run because it is doing more python stuff than just straight C stuff. Some python stuff is unavoidable, though, like the def statement above. Note that the coloring of the lines is heuristic; it's not a guarantee that those lines are the ones that are running slowly. But it does help quite a bit if you want to speed up your code: make sure that the inner loops don't have very much yellow in them. Personally, I think the coloring of the lines and the ability to click on them is one of the neatest features about developing cython in the notebook. Jason --~--~-~--~~~---~--~~ 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: from lists to sets
cesarnda wrote: is there a function that can convert a list to a set without verifying if there are equal elements?, i.e., I am creating a large set (cardinality = 9^5) of vectors, so the constructions takes too long ( around 25 seconds), but I know all the vectors are distinct, so is there a way to add an element into a set without verifying if the element is already in the set? or What sort of sets are you using? The python sets use a dictionary, so it is generally very fast to see if an element already exists in the set. If you know everything is distinct, why don't you just keep it as a list? Jason --~--~-~--~~~---~--~~ 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] Multiline output in notebook
Hello all, my advisor has a question in the sage notebook that I haven't really thought about (as I use the cmd line more often) Is there a way in a single notebook cell to display multiple output. ie cell 17 28 19 cell Out: 19 where he would like cell 17 28 19 cell Out: 17 Out: 28 Out: 19 The only way I thought of is to have all on one line separated by commas. -- David Monarres [EMAIL PROTECTED] Nothing takes the taste out of peanut butter quite like unrequited love. -- Charlie Brown --~--~-~--~~~---~--~~ 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: from lists to sets
I am using the set([]) function, and is a set of vectors, I want to convert it to a set because I want to use the methods for sets On Sep 25, 9:09 pm, Jason Grout [EMAIL PROTECTED] wrote: cesarnda wrote: is there a function that can convert a list to a set without verifying if there are equal elements?, i.e., I am creating a large set (cardinality = 9^5) of vectors, so the constructions takes too long ( around 25 seconds), but I know all the vectors are distinct, so is there a way to add an element into a set without verifying if the element is already in the set? or What sort of sets are you using? The python sets use a dictionary, so it is generally very fast to see if an element already exists in the set. If you know everything is distinct, why don't you just keep it as a list? Jason --~--~-~--~~~---~--~~ 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: Seg fault with determinant calculation
On Sep 25, 12:34 pm, phil [EMAIL PROTECTED] wrote: Hi, I did valgrind a couple of the example sessions you gave for various n (n=4,5 and 8 IIRC) and the good news is that there are no leaks going on and Singular does not seem to do anything naughty. One more thing I've noticed is that loading the saved result either doesn't work is is extremely inefficient. On Monday, I started up 3.1.2 final and ran load detMp.sobj. It's been rough 3 days and it's still going. This means loading takes longer than the original computation. Yeah, pickling for those matrices over the mv polynomial ring probably uses generic code and hence sucks speed wise. If malb or anyone else familiar with that are of the code agrees please open a ticket so we remember to fix this. Phil Cheers, Michael --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
