[sage-support] Re: Can't plot with sage: Maxima crashed

2008-09-21 Thread Umang

Thanks for your reply!
So I should either download source or wait for Ubuntu binaries. Could be
please suggest an option after considering the following:

I want only a stable version. I am currently not interested in the
bleeding edge of sage, at least for a few months. (So should I download
a previous version?)
I have an interconnection that's fast, BUT very limited data transfer
limit. So which is easier to upgrade, source or binaries? Is there any
way I can download only the changes for the next version (whenever I
would want it) and not have to download 300 MB each time I want to upgrade?

Also, could you then explain for which linux distos the Debian version
will work on, since I downloaded the Debian after I saw this in
http://www.sagemath.org/bin/linux/32bit/README.txt:


NOTE: The Debian version will likely work on many other Linux distributions,
since it was built on a minimal Debian install.


Thanks again for your help!

Umang

William Stein wrote:
 On Sat, Sep 20, 2008 at 3:59 AM, Umang [EMAIL PROTECTED] wrote:
   
 Hi!
 I installed sage-3.1.1-debian32-intel-i686-Linux (md5 matched)
 yesterday on Ubuntu 8.04. I extracted and did a make. I then did:
 

 Unfortunately that binary very well might not work, since it's for debian
 rather than ubuntu, and they are different.  I'll make sure the binaries
 set for 3.1.2 contains an ubuntu 32-bit binary.  These binaries will come
 out within a day.

   
 sage: install_scripts('/usr/bin')
 After that, when I wanted to plot (I was going through the manual).
 sage: plot(cos, (-5,5))
 Maxima crashed -- automatically restarting.
 Maxima crashed -- automatically restarting.
 .


 sage: plot(cos(x), (-5,5))
 Maxima crashed -- automatically restarting.
 Maxima crashed -- automatically restarting.


 So I have a few questions:
 How can I undo install_scripts('/usr/bin') (because I'd like to
 reinstall completely)?
 

 This is not necessary.  These scripts are all just 2-3 liners that
 just call sage with an appropriate command line option.

   
 What can I do about this problem?
 

 Either build from source or wait for an ubuntu binary.

   
 How do I plot?
 What more information would you like to understand this error?

 Thanks a lot!

 Umang

 



   


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[sage-support] question on using integral() in sage. Fourier transform of unit step function.

2008-09-21 Thread Nasser Abbasi

Hello;
I am a sage  newbie. I'd like to find out how to make Sage give me
this same result that I get in Mathematica.

This is what I typed (I do not know how to cut/paste from the VMWare
player console to her yet, so if there is a typo it is because of
this).

f=var('f')
assume(f0)
integral(  e^(-I * 2 * pi * f * t), t , 0 , Infinity)

The answer I get starts with

limit(sin(2*pi*f*t),t,   etc...etc...


Is there a way to tell Sage to give me this answer I get from
Mathematica?

Assuming[Im[f]  0, Integrate[Exp[(-I)*2*Pi*f*t], {t, 0, Infinity}]]
-(I/(2*f*Pi))

Thanks,
Nasser





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[sage-support] Can not delete worksheet.

2008-09-21 Thread Sand Wraith

Hi!

Using sage:
SAGE Version 3.1.1, Release Date: 2008-08-17

and can not delete worksheet:

1) select worksheet test
2) press delete
3) now i can see test worksheet in Trash,
4) press sign out
5) stop sage
6) launch sage again
7) and now i see test worksheet in active section again!
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[sage-support] Re: Can not delete worksheet.

2008-09-21 Thread Timothy Clemans

Hi,

This and other bugs have been fixed in the latest release, 3.1.2.

Timothy

On Sun, Sep 21, 2008 at 7:23 AM, Sand Wraith [EMAIL PROTECTED] wrote:

 Hi!

 Using sage:
 SAGE Version 3.1.1, Release Date: 2008-08-17

 and can not delete worksheet:

 1) select worksheet test
 2) press delete
 3) now i can see test worksheet in Trash,
 4) press sign out
 5) stop sage
 6) launch sage again
 7) and now i see test worksheet in active section again!
 


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[sage-support] Sage 3.1.2 released (i.e. binaries are available)

2008-09-21 Thread mabshoff

[Due to three security critical notebook bugs it is *highly*
recommended that you upgrade from all previous versions of Sage.
Binaries for all platforms are available at sagemath.org. The mirrors
are hopefully catching up soon.]

Hello folks,

Sage 3.1.2 was released on September 19th, 2008. It is available at

   http://sagemath.org/download.html

* About Sage (http://www.sagemath.org)

Sage is developed by volunteers and combines 71 open source packages.
It is available for download from sagemath.org and its mirrors in
source or binary form. If you have any questions and/or problems
please report them to the Google groups sage-devel or sage-support.
You can also drop by in #sage-devel or #sage-support in freenode.

-

The following 42 people contributed to this release:

 * Tim Abbott
 * Michael Abshoff
 * Martin Albrecht
 * Robert Bradshaw
 * Arnaud Bergeron [first contribution]
 * C. Boncelet [first contribution]
 * Tom Boothby
 * Michael Brickenstein
 * Ondrej Certik
 * Craig Citro
 * Timothy Clemans
 * John Cremona
 * Karl-Dieter Crisman
 * Burcin Erocal
 * Gary Furnish
 * Alex Ghitza
 * Andrzej Giniewicz
 * Jason Grout
 * Mike Hansen
 * Marshall Hampton
 * Chris Holdsworth [first contribution]
 * Hamish Ivey-Law [first contribution]
 * David Joyner
 * Josh Kantor
 * Simon King
 * Steve Linton
 * Jason Merrill [first contribution]
 * Robert Miller
 * Minh Nguyen
 * Willem Jan Palenstijn
 * John Palmieri
 * David Philp [first contribution]
 * Yi Qiang
 * Nils-Peter Skoruppa [first contribution]
 * Franco Saliola
 * William Stein
 * Griffen Thoma [first contribution]
 * Igor Tolkov
 * Ralf-Philipp Weinmann
 * Georg Weber [first contribution]
 * Carl Witty
 * Chris Wuthrich

Cheers,

Michael Abshoff (release chair), William Stein

* Major Features, New Spkgs and Bugfixes

 * Doctest Coverage Hits 60% (Mike Hansen and others)
 * Hidden Markov Models (William Stein)
 * Fix various Notebook Bugs (Timothy Clemans, Mike Hansen)
 * New Structures for Partition Refinement (Robert Miller)
 * Improved Dense Linear Algebra over GF(2) (Martin Albrecht)
 * Update to new PolyBoRi Version (0.5) and Improved Interface (Tim
Abbott, Michael Abshoff, Martin Albrecht)
 * QEPCAD Interface (Carl Witty)
 * Update Developer's Handbook (John Palmieri)
 * Improved 64-bit OSX Support (Michael Abshoff)
 * GAP Meataxe Interface (Simon King, David Joyner)
 * Better SymPy Integration (Ondrej Certik)
 * Real Number Inputs Improved (Robert Bradshaw)
 * Faster Determinants of Dense Matrices over Multivariate Polynomial
Rings (Martin Albrecht)
 * Arrow drawing improved (Jason Grout)
 * Eigen functions for matrices (Jason Grout)
 * Memory Leak fixes (Michael Abshoff, Craig Citro)

For details see the Sage 3.1.2 Release Tour at

  http://wiki.sagemath.org/sage-3.1.2

* Known Issues with 3.1.2:

 * RHEL 5 clisp build issue: the latest clisp.spkg does not build
   so please use the clisp.spkg from Sage 3.0.3.

* Bug Statistics

We closed 251 tickets. For details see

   http://trac.sagemath.org/sage_trac/milestone/sage-3.1.2

or check out the closed ticket section at the end of the
announcement.

* Upcoming Releases

The next release will be 3.1.3, chaired by Michael Abshoff. It will
be a mix of new features and bug fixes.

* Doctesting Coverage

For 3.1.1 we had:

Overall weighted coverage score:  56.5%
Total number of functions:  20920

We increased coverage by 4.0% in 3.1.2 while removing 336 functions:

Overall weighted coverage score:  60.5%
Total number of functions:  20584

* Closed Tickets:

Merged in Sage 3.1.2.rc5:

#3534: William Stein, John Palmieri: plot -- fix circle example in the
documentation [Reviewed by Mike Hansen]
#3894: John Palmieri: in tutorial, live version, triple dots are not
visible [Reviewed by Mike Hansen]
#4063: Timothy Clemans: properly escape the titles of worksheets
[Reviewed by Mike Hansen]
#4133: Mike Hansen, Michael Abshoff: sage.math - sage 3.1.2.rc4
doctest failure in interfaces/maxima.py [Reviewed By Robert Miller]
#4130: Michael Abshoff: #4125 does not work on OS X 10.4 [Reviewed by
Robert Miller]
#4131: Michael Abshoff: unbreak sage-clone [Reviewed by Mike Hansen]
#4137: William Stein: add doctests for user_type() in avatar.py
[Reviewed by Mike Hansen]
#4138: Michael Abshoff: Sage 3.1.2.rc5: fix documentation build issues
[Reviewed by Mike Hansen]

Merged in Sage 3.1.2.rc4:

#925: Michael Abshoff: valgrind options to sage (sage -valgrind, sage
-
callgrind, etc.) should be more customizable [Reviewed by Robert
Miller]
#1915: Alex Ghitza: infinity doesn't behave well [Reviewed by John
Cremona]
#3563: Michael Abshoff: make def atlas() deal with the Accelerate
Framework on OSX [Reviewed by Robert Miller]
#3675: Michael Abshoff: upgrade optinal valgrind.spkg to the 3.3.1
release [Reviewed by Robert Miller]
#3847: Alex Ghitza: can't make vector of ints [Reviewed by John
Cremona]
#4097: Robert Miller: matrix automorphism groups 

[sage-support] Sage Days 11: November 7-10, Austin, Texas

2008-09-21 Thread Craig Citro

Hi all,

This is a reminder that Sage Days 11 is fast approaching! The topic is
Special functions and computational number theory meet scientific
computing. The plan is to bring together a bunch of number theorists
and scientific computing/supercomputing experts, and Austin's
incredible supercomputing facilities make this the perfect place for
it.

If you're new to Sage, and interested in this topic, attending a Sage
Days is the perfect way to get more involved. (For those of you who've
been around a while, you know the drill -- just go ahead and skip this
paragraph.) Sage Days are friendly and very intensive focused
development workshops, which are probably fairly different from other
math-related conferences and workshops you've attended. There are
usually only one to two talks per day, in order to allow for the
maximum time for working discussions and coding sprints. The groups
are organized on the first day, and there are regular progress reports
throughout the workshop.

We have a webpage:

  http://www.math.utexas.edu/sage

and a wiki page:

  http://wiki.sagemath.org/days11

If you're planning on joining us in Austin, please register soon at
http://www.ma.utexas.edu/sage/rform1.php, and add your name to the
wiki. We do have some limited funding available, so please let us know
if you'll need funding. We have a block of rooms reserved at the
Doubletree Guest Suites in Austin, and we'll let you know more details
on that soon.

If you have any questions, feel free to email me or any of the other organizers!

On behalf of the organizing committee,
-Craig Citro

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For more options, visit this group at 
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[sage-support] Re: question on using integral() in sage. Fourier transform of unit step function.

2008-09-21 Thread Nasser Abbasi



 On Sat, Sep 20, 2008 at 11:58 PM,NasserAbbasi[EMAIL PROTECTED] wrote:

  Hello;
  I am a sage  newbie. I'd like to find out how to make Sage give me
  this same result that I get in Mathematica.

  This is what I typed (I do not know how to cut/paste from the VMWare
  player console to her yet, so if there is a typo it is because of
  this).

  f=var('f')
  assume(f0)
  integral(  e^(-I * 2 * pi * f * t), t , 0 , Infinity)

  The answer I get starts with

  limit(sin(2*pi*f*t),t,   etc...etc...

  Is there a way to tell Sage to give me this answer I get from
  Mathematica?

  Assuming[Im[f]  0, Integrate[Exp[(-I)*2*Pi*f*t], {t, 0, Infinity}]]
  -(I/(2*f*Pi))

  Thanks,
 Nasser

On Sep 21, 2:49 pm, David Joyner [EMAIL PROTECTED] wrote:
 This integral doesn't converge. Why do you think Sage should return
 what Mma does?



I think it does converge.

int( exp(-I 2 Pi f t),{t,0,infinity) =

 
infinity
1/(-I 2 Pi f)  *   [  exp(-I 2 Pi f t) }
  0

Let f be complex in general, say   (a+ I b) then the above becomes

 infinity
1/(-I 2 Pi f)  *   [  exp(-I 2 Pi (a +I b) t) }
 0

or

 
infinity
1/(-I 2 Pi f)  *   [  exp(-I 2 Pi a t)  exp (2 Pi b t) }
0

Since b0,  then the above becomes

1/(-I 2 Pi f)  *   [  0 - 1 }

or

1/(I 2 Pi f)

or

-I/(2 Pi f)

which is what Mathematica gave.

Did I make a mistake in the above somewhere?  Could you explain why
you think the integral does not converge?

Nasser

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[sage-support] Re: question on using integral() in sage. Fourier transform of unit step function.

2008-09-21 Thread Nasser Abbasi


Let me rewrite what I wrote in last post again, since it did not
format well.


I think it does converge.

int( exp(-I 2 Pi f t),{t,0,infinity) =

 infinity
   1/(-I 2 Pi f)  *   [  exp(-I 2 Pi f t) }
 0

Let f be complex in general, say  (a+ I b) then the above becomes

   infinity
1/(-I 2 Pi f)  *   [  exp(-I 2 Pi (a +I b) t) }
   0

 or

 
infinity
1/(-I 2 Pi f)  *   [  exp(-I 2 Pi a t)  exp (2 Pi b t) }
   0

Since b0 (this is the assumption that Im(f)0 ),  then the above
becomes

1/(-I 2 Pi f)  *   [  0 - 1 }

 or

1/(I 2 Pi f)

or

 -I/(2 Pi f)

Nasser
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[sage-support] Re: Sage 3.1.2 released (i.e. binaries are available)

2008-09-21 Thread pong

Hi,

When will the new VMWare image available? I just download it from
sagemath.org but the version I got is still 3.0.6

On Sep 21, 5:34 pm, mabshoff [EMAIL PROTECTED]
dortmund.de wrote:
 [Due to three security critical notebook bugs it is *highly*
 recommended that you upgrade from all previous versions of Sage.
 Binaries for all platforms are available at sagemath.org. The mirrors
 are hopefully catching up soon.]

 Hello folks,

 Sage 3.1.2 was released on September 19th, 2008. It is available at

            http://sagemath.org/download.html

 * About Sage (http://www.sagemath.org)

 Sage is developed by volunteers and combines 71 open source packages.
 It is available for download from sagemath.org and its mirrors in
 source or binary form. If you have any questions and/or problems
 please report them to the Google groups sage-devel or sage-support.
 You can also drop by in #sage-devel or #sage-support in freenode.

 -

 The following 42 people contributed to this release:

  * Tim Abbott
  * Michael Abshoff
  * Martin Albrecht
  * Robert Bradshaw
  * Arnaud Bergeron [first contribution]
  * C. Boncelet [first contribution]
  * Tom Boothby
  * Michael Brickenstein
  * Ondrej Certik
  * Craig Citro
  * Timothy Clemans
  * John Cremona
  * Karl-Dieter Crisman
  * Burcin Erocal
  * Gary Furnish
  * Alex Ghitza
  * Andrzej Giniewicz
  * Jason Grout
  * Mike Hansen
  * Marshall Hampton
  * Chris Holdsworth [first contribution]
  * Hamish Ivey-Law [first contribution]
  * David Joyner
  * Josh Kantor
  * Simon King
  * Steve Linton
  * Jason Merrill [first contribution]
  * Robert Miller
  * Minh Nguyen
  * Willem Jan Palenstijn
  * John Palmieri
  * David Philp [first contribution]
  * Yi Qiang
  * Nils-Peter Skoruppa [first contribution]
  * Franco Saliola
  * William Stein
  * Griffen Thoma [first contribution]
  * Igor Tolkov
  * Ralf-Philipp Weinmann
  * Georg Weber [first contribution]
  * Carl Witty
  * Chris Wuthrich

 Cheers,

 Michael Abshoff (release chair), William Stein

 * Major Features, New Spkgs and Bugfixes

  * Doctest Coverage Hits 60% (Mike Hansen and others)
  * Hidden Markov Models (William Stein)
  * Fix various Notebook Bugs (Timothy Clemans, Mike Hansen)
  * New Structures for Partition Refinement (Robert Miller)
  * Improved Dense Linear Algebra over GF(2) (Martin Albrecht)
  * Update to new PolyBoRi Version (0.5) and Improved Interface (Tim
 Abbott, Michael Abshoff, Martin Albrecht)
  * QEPCAD Interface (Carl Witty)
  * Update Developer's Handbook (John Palmieri)
  * Improved 64-bit OSX Support (Michael Abshoff)
  * GAP Meataxe Interface (Simon King, David Joyner)
  * Better SymPy Integration (Ondrej Certik)
  * Real Number Inputs Improved (Robert Bradshaw)
  * Faster Determinants of Dense Matrices over Multivariate Polynomial
 Rings (Martin Albrecht)
  * Arrow drawing improved (Jason Grout)
  * Eigen functions for matrices (Jason Grout)
  * Memory Leak fixes (Michael Abshoff, Craig Citro)

 For details see the Sage 3.1.2 Release Tour at

  http://wiki.sagemath.org/sage-3.1.2

 * Known Issues with 3.1.2:

  * RHEL 5 clisp build issue: the latest clisp.spkg does not build
    so please use the clisp.spkg from Sage 3.0.3.

 * Bug Statistics

 We closed 251 tickets. For details see

    http://trac.sagemath.org/sage_trac/milestone/sage-3.1.2

 or check out the closed ticket section at the end of the
 announcement.

 * Upcoming Releases

 The next release will be 3.1.3, chaired by Michael Abshoff. It will
 be a mix of new features and bug fixes.

 * Doctesting Coverage

 For 3.1.1 we had:

 Overall weighted coverage score:  56.5%
 Total number of functions:  20920

 We increased coverage by 4.0% in 3.1.2 while removing 336 functions:

 Overall weighted coverage score:  60.5%
 Total number of functions:  20584

 * Closed Tickets:

 Merged in Sage 3.1.2.rc5:

 #3534: William Stein, John Palmieri: plot -- fix circle example in the
 documentation [Reviewed by Mike Hansen]
 #3894: John Palmieri: in tutorial, live version, triple dots are not
 visible [Reviewed by Mike Hansen]
 #4063: Timothy Clemans: properly escape the titles of worksheets
 [Reviewed by Mike Hansen]
 #4133: Mike Hansen, Michael Abshoff: sage.math - sage 3.1.2.rc4
 doctest failure in interfaces/maxima.py [Reviewed By Robert Miller]
 #4130: Michael Abshoff: #4125 does not work on OS X 10.4 [Reviewed by
 Robert Miller]
 #4131: Michael Abshoff: unbreak sage-clone [Reviewed by Mike Hansen]
 #4137: William Stein: add doctests for user_type() in avatar.py
 [Reviewed by Mike Hansen]
 #4138: Michael Abshoff: Sage 3.1.2.rc5: fix documentation build issues
 [Reviewed by Mike Hansen]

 Merged in Sage 3.1.2.rc4:

 #925: Michael Abshoff: valgrind options to sage (sage -valgrind, sage
 -
 callgrind, etc.) should be more customizable [Reviewed by Robert
 Miller]
 #1915: Alex Ghitza: infinity doesn't behave well [Reviewed by John
 Cremona]
 #3563: Michael Abshoff: