In instalatiopn guide you can find:
SAGE_ATLAS_LIB - if you have an installation of ATLAS on your system
and you want Sage to use it instead of building and installing its own
version of ATLAS, set this variable to be the parent directory of your
ATLAS installation: it should have a subdirectory
The alarm() function was exactly what I needed. Thanks! I had tried to
attach my
own handler to SIGALRM, but because of, I guess, the way Sage
handles exceptions it dind't work.
On Mar 28, 8:28 pm, William Stein wst...@gmail.com wrote:
On Mon, Mar 28, 2011 at 8:15 AM, Tzanko Matev
Hello. I've written a sage program which produces a complex matrix. I
want to find the eigenvalues and associated eigenvectors. I also want
to use arbitrary precision. I don't care about speed. I've read old
posts to this group on this topic, but am unsure how to proceed.
Currently I'm using the
Update: after reading #10346 on
http://www.sagemath.org/mirror/src/changelogs/sage-4.6.2.txt
I upgraded to 4.6.2 and am still having the same problem (no
eigenvectors specified, even with 500 digits of precision).
sage: version()
'Sage Version 4.6.2, Release Date: 2011-02-25'
sage: !uname -a
On 3/30/11 10:44 AM, Ben123 wrote:
Hello. I've written a sage program which produces a complex matrix. I
want to find the eigenvalues and associated eigenvectors. I also want
to use arbitrary precision. I don't care about speed. I've read old
posts to this group on this topic, but am unsure how
It seems that there is a problem with content.wuala.com.
sage -upgrade
Automatically selected server content.wuala.com
(http://content.wuala.com/contents/phatsphere/edoras/sage-mirror/).
Downloading packages from
On Mar 30, 12:41 pm, Thierry Dumont tdum...@math.univ-lyon1.fr
wrote:
It seems that there is a problem with content.wuala.com.
sage -upgrade
I am in 4.6.2
Of course, there is nothing to upgrade to at this time, though that
doesn't mean there isn't a problem with that server. 4.7
On 03/30/11 02:33 AM, Roy Joshua wrote:
Hi,
I have a Dell 980 optiplex machine with i7 processor (8 core), 16GB RAM.
I tried to install sage on it with OS: Centos 5.5.
That's an impressive machine. Clearly not an old relic.
CLEANM -DATL_UCLEANN -DATL_UCLEANK -O -fomit-frame-pointer -fPIC
I'm just wondering if there is a canonical (i.e. convienient(i.e.
lazy)) way to define simple sequences and series in sage. In
particular, is there a standard way to define recursive series?
Suppose for example that You wanted to define the series a_n=1/n^2. Is
there a way to do this without
sage: gp_console()
? \p 100
realprecision = 115 significant digits (100 digits displayed)
? a=matrix(3,3,k,m,random(1.0))+I*matrix(3,3,k,m,random(1.0));
? m=a*conj(a)~;
? mateigen(m)
On 30 Mar, 18:20, Jason Grout jason-s...@creativetrax.com wrote:
On 3/30/11 10:44 AM, Ben123 wrote:
On Mar 30, 2:58 pm, ObsessiveMathsFreak
obsessivemathsfr...@gmail.com wrote:
I'm just wondering if there is a canonical (i.e. convienient(i.e.
lazy)) way to define simple sequences and series in sage. In
particular, is there a standard way to define recursive series?
Suppose for example
Hello. Thank you for showing me the equivalent process in PARI/GP. I
think this implies I need to transfer the complex Hermitian matrix
into gp_console() to find eigenvectors, then transfer them back to
Sage. I'll update this post when I figure out how to do that.
In the mean time, if someone has
# NO WARRANTY
precision_digits=30
nop=5 # rank of matrix
MS_nop_comp=MatrixSpace(ComplexField(precision_digits),nop,nop)
tmat=MS_nop_comp(0) # zero-ize the values
ttdag=MS_nop_comp(0)
for a in range(nop):
for b in range(nop):
tmat[a,b]=random()+I*random()
I see, thanks -- was not aware Sage also has its own way to set random
seed.
--
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
Do you mean something like:
#fibonacci
def fib(n):
if n==0 or n==1:
return 1
return fib(n-1)+fib(n-2)
#output sequence
for i in range(10):
print fib(i)
#output series
sum=0
for i in range(10):
sum+=fib(i)
print sum
HTH,
A. Jorge Garcia
Applied Math and CompSci
On Wed, 30 Mar 2011 at 11:58AM -0700, ObsessiveMathsFreak wrote:
I'm just wondering if there is a canonical (i.e. convienient(i.e.
lazy)) way to define simple sequences and series in sage. In
particular, is there a standard way to define recursive series?
Suppose for example that You wanted
Hi,
I tried the suggestion to use the command
SAGE64=yes
export SAGE64
that was suggested as response to my last message by David Kirkby.
(My last message was that I could not install sage-4.6.2 to a machine
running Centos 5.5. This is a 64 bit machine with i7 8 core processor.)
However that
17 matches
Mail list logo
