[sage-support] Re: Fundamental Group

2010-11-10 Thread Simon King
Hi Robert! On 10 Nov., 18:31, Robert Goss wrote: > I am trying to compute the fundamental group of some simplicial > complexes in sage. Is there a way of creating a group with a given set > of generators and relations? You could use the fact that GAP is part of Sage. Using the GAP interface, you

[sage-support] Installation problem (Sage 4.6)

2010-11-10 Thread Simon King
Hi! I just tried to install Sage-4.6 on the computer in my new office, but it failed. The last line of the install.log says: To install gap, gp, singular, etc., scripts in a standard bin directory, start sage and type something like sage: install_scripts('/usr/local/bin') at the Sage command p

[sage-support] Re: Sage and Macaulay 2

2010-11-10 Thread Simon King
Hi Doug, hi David! On 10 Nov., 19:05, "Dr. David Kirkby" wrote: > On 11/10/10 04:14 PM, doug5y wrote: > ... > > I've built sage already, would I have to rebuild sage if I installed > > Macaulay 2 after the build? > > It should not be necessary to do so. I think typing > > $ sage -i /path/to/Macau

[sage-support] Re: Arithmetic with symbolic fields

2010-11-10 Thread Jason Grout
On 11/10/10 10:50 AM, stustd wrote: I try to compute the following inner product: c(a,b) = a * b# inner product between a and b pp(p1,p2) = (p1,p2) # vec1 with symbolic expressions ps(s1,s2) = (s1,s2)# vec2 with symbolic expressions pp*ps #

[sage-support] Fundamental Group

2010-11-10 Thread Robert Goss
Dear all, I am trying to compute the fundamental group of some simplicial complexes in sage. Is there a way of creating a group with a given set of generators and relations? Thank you, Robert Goss. University of Warwick -- To post to this group, send email to sage-support@googlegroups.com To

Re: [sage-support] Sage and Macaulay 2

2010-11-10 Thread Dr. David Kirkby
On 11/10/10 04:14 PM, doug5y wrote: Is it required to download and install Macaulay 2 for sage to use it? Yes, it is optional. I created a ticket the other day http://trac.sagemath.org/sage_trac/ticket/10117 to say this should be documented, as its not clear from reading the documentation th

[sage-support] Re: Sage and Macaulay 2

2010-11-10 Thread doug5y
The install of Macaulay2 I was referring to above was from Fedora. I'm running Fedora Core 14. DN On Nov 10, 9:14 am, doug5y wrote: > Is it required to download and install Macaulay 2 for sage to use it? > > I've built sage already, would I have to rebuild sage if I installed > Macaulay 2 after

[sage-support] Arithmetic with symbolic fields

2010-11-10 Thread stustd
I try to compute the following inner product: c(a,b) = a * b# inner product between a and b pp(p1,p2) = (p1,p2) # vec1 with symbolic expressions ps(s1,s2) = (s1,s2)# vec2 with symbolic expressions pp*ps # WORKS! (Inner product) c(pp,ps)

[sage-support] Sage and Macaulay 2

2010-11-10 Thread doug5y
Is it required to download and install Macaulay 2 for sage to use it? I've built sage already, would I have to rebuild sage if I installed Macaulay 2 after the build? TIA, Doug Nadworny -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send em

[sage-support] Re: Is it possible to make such plots?

2010-11-10 Thread pevzi
Thank you very much. implicit_plot is what I need. -- 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: