[sage-support] Re: VMware Player. Read files from windows OS

2009-03-12 Thread hpon
Hi William, Thanks for your reply! Something has turned up that I must attend to, so I cannot try your solution at the moment. But I'll get back to it shortly. /hpon On 11 Mar, 14:22, William Stein wst...@gmail.com wrote: On Wed, Mar 11, 2009 at 4:03 AM, hpon peter.norli...@gmail.com wrote:

[sage-support] Adding elements of different polynomial rings - how to?

2009-03-12 Thread Simon King
Dear Supporters, the following works: sage: R=PolynomialRing(QQ,['a','x1','y1']) sage: S=PolynomialRing(QQ,['x1','y1','z']) sage: R('x1+a')+S('x1+z') a + 2*x1 + z The following does not work: sage: R=PolynomialRing(QQ,['a','x','y1']) sage: S=PolynomialRing(QQ,['x1','y1','z']) sage:

[sage-support] Re: Adding elements of different polynomial rings - how to?

2009-03-12 Thread Robert Bradshaw
On Mar 12, 2009, at 12:32 AM, Simon King wrote: Dear Supporters, the following works: sage: R=PolynomialRing(QQ,['a','x1','y1']) sage: S=PolynomialRing(QQ,['x1','y1','z']) sage: R('x1+a')+S('x1+z') a + 2*x1 + z The following does not work: sage: R=PolynomialRing(QQ,['a','x','y1'])

[sage-support] Re: Adding elements of different polynomial rings - how to?

2009-03-12 Thread Simon King
Hi Robert, On Mar 12, 8:42 am, Robert Bradshaw rober...@math.washington.edu wrote: So, why is the corresponding operation not done in the second example? Because the ordering of variables is ambiguous. Should it be QQ [a,x,x1,y1,z] or QQ[a,x1,x,y1,z]? Good point, thank you! sage: R =

[sage-support] Probleme runing Sage in a chroot.

2009-03-12 Thread Thierry Dumont
I have problems runing sage in a chroot jail. Sage version: 3.3 I followed what is written in http://www.sagemath.fr/doc/inst/node10.html After installing the chroot I copied all the sage tree from a former installation, outside the chroot (may be the problem is here ?) Everything thing in

[sage-support] Re: VMware Player. Read files from windows OS

2009-03-12 Thread hpon
I can't get it to work. Could you be a bit more specific with the details (I really have no clue). The idea is that I upload the file to VMware Player and then load the file in Sage, right??? Should I do the Data-Upload before I start Sage? What would the exact syntax be if the Sage-file is

[sage-support] problem after moving sage folder

2009-03-12 Thread Stan Schymanski
Dear all, I had a great idea (so I thought) about upgrading in the background while the sage server is still running. Here is what I did, but it didn't work for some reason: In OS X 10.4, I shut down the server briefly, changed into the sage directory, ran cp -r * /newdirectory and restarted the

[sage-support] Build sage 3.4 failed. Missing fortran flags

2009-03-12 Thread koch.peerjoac...@googlemail.com
Hi, I'm trying to build sage from the source on our cluster. The cluster is running under SLES9SP3 (all AMD Opterons). We are normaly using PGI compiler (8.0.X) for fortran. The installation is using gcc 4.2.1 from /usr/local/bin. I tried to set F77, F90 and so on and also tried to set

[sage-support] Updating Sage

2009-03-12 Thread kaufma
I am updating Sage on OSX 10.5. This is in a computer lab with about 40 machines. There is an existing version of Sage on the machines. Does the older version need to be uninstalled first? Thanks, Eric Kaufmann Saitn Louis Univesity --~--~-~--~~~---~--~~ To post

[sage-support] Re: Updating Sage

2009-03-12 Thread kcrisman
On Mar 12, 12:33 pm, kaufma kaufmanne...@gmail.com wrote: I am updating Sage on OSX 10.5. This is in a computer lab with about 40 machines. There is an existing version of Sage on the machines. Does the older version need to be uninstalled first? Someone will correct me if I'm wrong, but I

[sage-support] Re: Small problem with limit()

2009-03-12 Thread Mike Hansen
Hello, On Thu, Mar 12, 2009 at 1:36 PM, Jose Guzman n...@neurohost.org wrote: sage: g=9.81 sage: t=var('t') sage: limit(2*g*(t^2-1)/(t-1),t=1)   gives me 39 However, if I simplify the equation and calculate the limit... sage: limit(2*g*(t+1),t=1)   gives me the good value 39.276 This is

[sage-support] Re: Build sage 3.4 failed. Missing fortran flags

2009-03-12 Thread mabshoff
On Mar 12, 7:54 am, koch.peerjoac...@googlemail.com koch.peerjoac...@googlemail.com wrote: Hi, Hi, I'm trying to build sage from the source on our cluster. The cluster is running under SLES9SP3 (all AMD Opterons). We are normaly using PGI compiler (8.0.X) for fortran. The installation is

[sage-support] Re: Small problem with limit()

2009-03-12 Thread mabshoff
On Mar 12, 1:54 pm, Mike Hansen mhan...@gmail.com wrote: Hello, SNIP We should really upgrade. The current version just has different bugs compared to what we ship :) But it seems that 5.18.x out in April ought to fix some annoying bugs about asksign which crept into 5.17, so we should

[sage-support] Re: Small problem with limit()

2009-03-12 Thread Ondrej Certik
On Thu, Mar 12, 2009 at 1:36 PM, Jose Guzman n...@neurohost.org wrote: Dear colleagues, I've just discovered this wonderful thing called Sage (I am a completely newbie, my apologizes in advance...), and I have to admit that I am impressed with Sage!!!. I started yesterday, and came along

[sage-support] Re: Small problem with limit()

2009-03-12 Thread Jose Guzman
it is true, I did it manually and the result should be 39.24 Ondrej Certik wrote: On Thu, Mar 12, 2009 at 1:36 PM, Jose Guzman n...@neurohost.org wrote: Dear colleagues, I've just discovered this wonderful thing called Sage (I am a completely newbie, my apologizes in advance...),

[sage-support] Re: problem after moving sage folder

2009-03-12 Thread John H Palmieri
On Mar 12, 11:38 am, mabshoff michael.absh...@mathematik.uni- dortmund.de wrote: Never us cp to copy Sage unless you know what you are doing, but use tar. Hm. I've never had any problems using cp; in fact I routinely do it before running 'sage -upgrade'. Does 'cp -pR' count as knowing what

[sage-support] Re: problem after moving sage folder

2009-03-12 Thread Jason Grout
John H Palmieri wrote: On Mar 12, 11:38 am, mabshoff michael.absh...@mathematik.uni- dortmund.de wrote: Never us cp to copy Sage unless you know what you are doing, but use tar. Hm. I've never had any problems using cp; in fact I routinely do it before running 'sage -upgrade'. Does 'cp

[sage-support] Re: Small problem with limit()

2009-03-12 Thread Robert Dodier
On Mar 12, 2:54 pm, Mike Hansen mhan...@gmail.com wrote: Maxima 5.17posthttp://maxima.sourceforge.net Using Lisp SBCL 1.0.18.debian Distributed under the GNU Public License. See the file COPYING. Dedicated to the memory of William Schelter. The function bug_report() provides bug reporting

[sage-support] Re: Small problem with limit()

2009-03-12 Thread Jose Guzman
Robert Dodier wrote: On Mar 12, 2:54 pm, Mike Hansen mhan...@gmail.com wrote: Maxima 5.17posthttp://maxima.sourceforge.net Using Lisp SBCL 1.0.18.debian Distributed under the GNU Public License. See the file COPYING. Dedicated to the memory of William Schelter. The function

[sage-support] Re: Small problem with limit()

2009-03-12 Thread William Stein
On Thu, Mar 12, 2009 at 2:19 PM, Ondrej Certik ond...@certik.cz wrote: On Thu, Mar 12, 2009 at 1:36 PM, Jose Guzman n...@neurohost.org wrote: Dear colleagues, I've just discovered this wonderful thing called Sage (I am a completely newbie, my apologizes in advance...), and I have to admit

[sage-support] Re: Small problem with limit()

2009-03-12 Thread William Stein
On Thu, Mar 12, 2009 at 1:36 PM, Jose Guzman n...@neurohost.org wrote: Dear colleagues, I've just discovered this wonderful thing called Sage (I am a completely newbie, my apologizes in advance...), and I have to admit that I am impressed with Sage!!!. I started yesterday, and came along

[sage-support] Re: Small problem with limit()

2009-03-12 Thread Ondrej Certik
On Thu, Mar 12, 2009 at 4:34 PM, William Stein wst...@gmail.com wrote: On Thu, Mar 12, 2009 at 2:19 PM, Ondrej Certik ond...@certik.cz wrote: On Thu, Mar 12, 2009 at 1:36 PM, Jose Guzman n...@neurohost.org wrote: Dear colleagues, I've just discovered this wonderful thing called Sage (I am

[sage-support] Re: Probleme runing Sage in a chroot.

2009-03-12 Thread William Stein
2009/3/12 Thierry Dumont tdum...@math.univ-lyon1.fr:  I have problems runing sage in a chroot jail. Sage version: 3.3 I followed what is written in  http://www.sagemath.fr/doc/inst/node10.html I don't have time to answer this but... it's vastly better these days to use a virtual machine