Hello,
I try to define a matrix (in particular a skew symmetric) with some
variables as entries. I know how to do it by hand defining some
variables and then put then into a matrix but what I want to have
seems to more complicated.
1. I choose a size for the 2g x 2g matrix say g=2
2. I want to g
> > I want that
> > show(function) would give me just 1 precision digit after comma
> > how could I achieve this?
>
> You can use Python's string
> formatting:http://docs.python.org/library/stdtypes.html#string-formatting
>
> To get floating-point numbers to display with one decimal point, do
>
Thanks for the instructions, Paul. Sage is up & running now.
On Jun 22, 12:05 am, Paul Sargent wrote:
> On 21 Jun 2009, at 16:21, lim wrote:
>
> > When I try to drag the "sage" folder from /Applications to Terminal,
> > the following message appears:
>
> Why would you do that? (dragging from A
Hi all,
is there any way to get a recent sage version running on my laptop?
output of /proc/cpuinfo below, operating system is linux ubuntu 8.04.2.
compiling from source won't work anymore (3.4 was already rather
difficult. Or did things improve there?), and the binaries from
sagemath for ubunt
On Mon, Jun 22, 2009 at 6:20 PM, Martin
Rubey wrote:
>
> Hi all,
>
> is there any way to get a recent sage version running on my laptop?
> output of /proc/cpuinfo below, operating system is linux ubuntu 8.04.2.
>
> compiling from source won't work anymore (3.4 was already rather
> difficult. Or d
Hi all,
I am running a small script on a windows xp machine and some time I
am getting this error message:
/usr/local/sage/local/bin/sage-sage: line 348: 19954 Killed
python "$@"
I don't get the meaning of that. By the way, does someone know an
efficient way in Sage to search for EC with pres
On Mon, Jun 22, 2009 at 5:35 PM, harivola wrote:
>
> Hi all,
>
> I am running a small script on a windows xp machine and some time I
> am getting this error message:
> /usr/local/sage/local/bin/sage-sage: line 348: 19954 Killed
> python "$@"
You're probably running out of memory (=RAM). Try e
Jens,
Does the following Sage command-line session begin to do what you
want?
Various parts could be more streamlined and/or automated for a larger
matrix.
Rob
sage: for i in range(4):
: var("a"+str(i))
:
a0
a1
a2
a3
sage: J = matrix(2,2,[a0,a1,a2,a3])
sage: J
[a0 a1]
[a2 a3]
sage
I'm writing code for a cython module, but right now I'm doing it in
the sage worksheet for convenience. This means that I don't have
access to sage's arg(complex number) function. Therefore, I decided to
use the cmath module's "phase(x)" function which does the same thing.
When I import cmath, how
I am unable to build sage from source on under Pardus 2009B and could
not find any obvious flags to try.
V/R
Scott
gcc, g++, make, m4, perl, ranlib, tar. gas/as, gld/ld, gnm/nm, gas/
as, gld/ld, gnm/nm are all installed.
The standard output for the error is:
bzip2-1.0.5/
manual.xml
bzip2-1.
Hi,
Thanks for the very quick response. I will try that tomorrow. Now I
understand the problem that we met when running the same code in a linux
machine.
I am doing this search for cryptographic applications, so I am dealing with
primes from the size of 170 bit Length.
I would like the 2-sylo
On Mon, Jun 22, 2009 at 8:37 PM, Ethan Van Andel wrote:
>
> I'm writing code for a cython module, but right now I'm doing it in
> the sage worksheet for convenience. This means that I don't have
> access to sage's arg(complex number) function. Therefore, I decided to
> use the cmath module's "phas
e
On Mon, Jun 22, 2009 at 8:53 PM, Scott wrote:
>
> I am unable to build sage from source on under Pardus 2009B and could
> not find any obvious flags to try.
What is Pardus.
The error you get below is:
/usr/include/bits/sigcontext.h:28:29: error: asm/sigcontext.h: No such
file or directo
Dear support:
sage: z = (-1)^(1/3)
sage: z
(-1)^(1/3)
sage: z.n()
0.500 + 0.866025403784439*I
So far, so good - known behavior, take "primitive" root. But:
sage: z^2
1
sage: (z.n())^2
-0.500 + 0.866025403784439*I
This seems problematic, and is because ((-1)^(1/3))^2 ==
I noticed that the minimum_distance() function returns -1 (sometimes
even returning error message), when the code is identically zero at
some coordinate. Although it makes sense to puncture the code first,
-1 is not very gracefull. Besides it should be a fast check to find
the all zero column and
Can you tell me what version you are using?
In version 4.0.2.rc3, I get
sage: C=LinearCode(Matrix(GF(2),[1,0,1,1,0,1]))
sage: C
Linear code of length 6, dimension 1 over Finite Field of size 2
sage: C.minimum_distance()
4
On Mon, Jun 22, 2009 at 6:27 PM, Rado wrote:
>
> I noticed that the min
sage: version()
'Sage Version 4.0.1, Release Date: 2009-06-06'
That probably explains it. I will update and try again.
Thanks,
Rado
On Jun 22, 5:36 pm, David Joyner wrote:
> Can you tell me what version you are using?
>
> In version 4.0.2.rc3, I get
>
> sage: C=LinearCode(Matrix(GF(2),[1,0,1,1
Yep, that fixed. That would teach me to upgrade before posting for
"bugs".
Rado
On Jun 22, 5:49 pm, Rado wrote:
> sage: version()
> 'Sage Version 4.0.1, Release Date: 2009-06-06'
>
> That probably explains it. I will update and try again.
>
> Thanks,
> Rado
>
> On Jun 22, 5:36 pm, David Joyner
Professor Stein
Thank you for your work with SAGE.
I could not find the package to install that would provide /usr/
include/asm/sigcontext.h and have filed a bug report for the Pardus
2009 Beta version. The respository did not seem to have *-dev
packages for the compilers.
Respectfully,
Scot
Rajeev Singh wrote:
> I should mention that these methods are all nice for this problem, but
> they also end up copying an awful lot of zeros. I think it would be way
> more efficient in general to make a zero matrix, then set the right
> diagonal by hand using a for loop.
>
>
>
On Jun 22, 2009, at 6:01 AM, kcrisman wrote:
>>> I want that
>>> show(function) would give me just 1 precision digit after comma
>>> how could I achieve this?
>>
>> You can use Python's string formatting:http://docs.python.org/
>> library/stdtypes.html#string-formatting
>>
>> To get floating-poi
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