Thanks Justin. My mistake... minimal_polynomial is what is required.
Graham
On Mar 17, 8:21 pm, "Justin C. Walker" wrote:
> On Mar 17, 2012, at 13:13 , firebird wrote:
>
> > I was expecting x^2 as the characteristic polynomial. What's gone
> > wrong?
>
I was expecting x^2 as the characteristic polynomial. What's gone
wrong?
sage: type(m)
sage: m
[ 00 1/400 1/400 -1/400 -1/4]
[ 1/400 -1/400 1/400 -1/400]
[ 0 1/400 -1/400 -1/400 1/40]
[ 00 1/4
==xdet
True
So Cyclotomics looks fine. I will use my own routines for the time
being.
Graham
On Mar 1, 10:17 am, firebird wrote:
> Alastair
>
> Thanks for the rapid reply.
>
> Your Sage code is far superior to mine. Very interesting and
> instructive! Looks as though GAP->S
son to GAP:-(
Finally, mat. looks very useful.
Graham
On Feb 29, 10:35 pm, Alastair Irving
wrote:
> On 29/02/2012 19:54, firebird wrote:> I am having performance problems when
> using SAGE matrices with
> > Cyclotomic Fields. Processing in GAP appears almost instant, where
I am having performance problems when using SAGE matrices with
Cyclotomic Fields. Processing in GAP appears almost instant, whereas
the similar computation takes of the order of a minute in SAGE. Am I
missing something?
Sage:
F.=CyclotomicField(29)
m=[]
n=20
for i in range(n):
row=[]
for j i
like ImageMagick? Just install them?
FireBird
On Feb 10, 9:18 am, Keshav Kini wrote:
> FYI, SAGE_PARALLEL_SPKG_BUILD is deprecated
> sincehttp://trac.sagemath.org/sage_trac/ticket/11959was merged (4.8.alpha0).
> Sage currently builds SPKGs in parallel by default. To turn this off you
> w
happy to go through a few extra loops and try to
publish mine!
FireBird
On Feb 8, 6:27 pm, Jason Grout wrote:
> On 2/8/12 10:39 AM, firebird wrote:
>
> > Thanks for the prompt response, but it is barely credible...
>
> Atlas will sometimes do tuning, which means that it
`/home/firebird/sage-4.8/spkg/build/
atlas-3.8.4.p1/ATLAS-build/tune/blas/level1'
526 make[10]: Entering directory `/home/firebird/sage-4.8/spkg/build/
atlas-3.8.4.p1/ATLAS-build/tune/blas/level1'
348 /home/firebird/sage-4.8/spkg/build/atlas-3.8.4.p1/
ATLAS-build/tune/sysi
Had a go at attempting to install the latest source code (downloaded
yesterday). Installed gfortran and M4, then ran make on the source
code. Make file seems to be repeated making the same file in an
unending loop. Please advise.
Sorry for the large chunk of the install.log, but not sure how els
