I could not compile sage-3.4.1 on my Mac (2 quad-core xeon running OS
X 10.5.6). I have
attached the final part of install.txt.
The binary for sage-3.4.0 is working fine, so this is not an urgent
problem for me. I am just
reporting on the off-chance that it might be of some use.
Regards
Chris
, although so
far I have done
nothing more than ask it for the answer to 1+1 (which it got right).
Since this is working, the issue is not urgent for me.
Thanks
Chris Godsil
##
gmp-mpir-0.9/src/README
Finished extraction
Host system
uname -a
in
sage.matrix.matrix_double_dense.Matrix_double_dense.right_eigenvectors
(sage/matrix/matrix_double_dense.c:5008)()
ImportError: No module named scipy
sage: type(A)
sage: type(B)
On Apr 9, 4:49 pm, mabshoff wrote:
> On Apr 9, 12:53 pm, Chris Godsil wrote:
>
> Hi Chris,
>
> > I tried to compile
Michael
The compressed install log is at http://quoll.uwaterloo.ca/install.log.gz
Thanks
Chris
On Apr 17, 4:40 pm, mabshoff wrote:
> On Apr 17, 1:12 pm, Chris Godsil wrote:
>
> > Michael
>
> Hi Chris,
>
>
>
>
>
> > I followed your suggestion and then sa
in following this convention, I think it should be followed.
Chris Godsil
On Jan 27, 5:28 pm, "Nicolas M. Thiery"
wrote:
> Hello,
>
> Let me advertise a patch on #8044 which introduces categories in the
> group code and uses it to do some cleanup. There are some mi
false (in fact we know that the graphs are isomorphic).
We can supply more details about the graph(s) on request.
Krystal Guo, Chris Godsil
wombat:sgwork chris$ sage
--
| Sage Version
I'd say the characteristic polynomial is usually defined to be
det( xI-M ); this
is certainly the convention in graph theory.
Chris
On Jun 15, 7:21 am, Minh Nguyen wrote:
> Hi folks,
>
> In trying to improve the documentation and doctests of the database of
> common graphs [1], I come across wha
If G is a graph and A = G.am() is its adjacency matrix and B =
G.complement().am() is
the adjacency matrix of its complement, then A+B should be a 01-
matrix. The code below
shows that sage does not always share this viewpoint.
Cheers
Chris
#
##
---
I am making an appeal to have the patch
http://trac.sagemath.org/sage_trac/ticket/11608 reviewed.
For background, I'll be giving some lectures on algebraic graph theory at
Simon Fraser University in July
(see http://www.sfu.ca/~mdevos/summerschool2012/CourseDetails.html) and I
want the student
I have not used matlab a lot, and not for some time, but I have
colleagues in
numerical optimization who use it heavily. I think there is
essentially no chance
that such people would move from matlab to sage. The only complaints I
have heard are
occasional mutterings about licensing. Matlab has ver
, 3:54 am, Dima Pasechnik wrote:
> Chris,
>
> On Wednesday, 17 August 2011 11:37:02 UTC+8, Chris Godsil wrote:
>
> [...]
>
>
>
>
>
>
>
>
>
> > One big advantage of sage is that one can do numerical calculations
> > along with
> > computa
Simon
You raise a number of very good points. In my case, my matrices are
produced by some other routine or
will be read in from a file. When I do type in small matrices, I've
never found the syntax to be
a problem. The sort of thing that has annoyed me is that matrix() and
Matrix() both work, but
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