In a recent thread called "Extreme Newbie Development Questions" Jason
Grout wrote:
>We really ought to set up a library of wonderfully documented examples
>of how to use Sage, something like the Maple application center or the
>Mathematica Demonstrations project. The current list of notebooks
>
On Feb 16, 2008 7:51 PM, Dan Christensen <[EMAIL PROTECTED]> wrote:
> I instead worked with a class that directly implemented A_n(float)
> using numpy arrays, and used weave to compile some inline C code for
> the multiplication operation. (Cython/Pyrex might be just as good for
> this, but I'm
Eric Drechsel <[EMAIL PROTECTED]> writes:
> We want to compute with octonions in Sage, and discussed at our
> meeting last night possibly implementing such an algebra.
>
> As I understand it, multiplication of octonions can be implemented on
> top of the quaternions in a simple way using the Cayl
Hi John,
> I'm not sure I understand the end of your message. Nowhere does the
> code I have in mind assume that anything is cyclic, let alone of prime
> order: the bsgs and dlog functions will terminate if there is no
> solution, with a ValueError.
Since baby-step, giant-step is deterministic
Hi,
I've finally got around to polishing off the implementation I made over
Christmas of multi-variate factoring over ZZ. For small cases singular
(working over QQ) beats it by a large factor, but for some larger cases they
become much more comparable. My favorite horrific example (in which
On Feb 16, 9:13 pm, "Joel B. Mohler" <[EMAIL PROTECTED]> wrote:
> Hi,
>
> In 2.10.2.alpha0, there appears to be a small problem with the cython skipping
> step. To illustrate the bug:
> 1) Start with a 2.10.2.alpha0 (with padic import patch) which is built
> up-to-date
> 2) Add a new patch wh
Hi,
In 2.10.2.alpha0, there appears to be a small problem with the cython skipping
step. To illustrate the bug:
1) Start with a 2.10.2.alpha0 (with padic import patch) which is built
up-to-date
2) Add a new patch which adds a new .pyx file
3) sage -br
4) The bug is that you get a message l
I agree that this would be a useful funtion to have. I would call it
splitting_field() with a description similar to that of root_field()
-- whose docstring does not say that self should be irreducible,
though in fact it must.
In the meantim you should be able to work with what is available as f
John Cremona wrote:
> Are you sure you mean to give NumberField() two polynomials, one of
> which (x) defines the trivial extension? You are only giving one name
> so I rpresume what you mean (to define a quadratic field) is
>
>
> sage: NumberField([x^2-3],'a')
> Number Field in a with defining
Are you sure you mean to give NumberField() two polynomials, one of
which (x) defines the trivial extension? You are only giving one name
so I rpresume what you mean (to define a quadratic field) is
sage: NumberField([x^2-3],'a')
Number Field in a with defining polynomial x^2 - 3
sage: F=Number
Is the following output for b.gens() correct?
sage: NumberField([x,x^2-3],'a')
Number Field in a0 with defining polynomial x over its base field
sage: b=NumberField([x,x^2-3],'a')
sage: b.gens()
(0, 0)
To contrast:
sage: c=NumberField([x^2-3, x^2-2],'a')
sage: c.gens()
(a0, a1)
Also, this blo
Craig Citro wrote:
>> sage -t devel/sage-main/sage/rings/number_field/number_field.py
>>
>
> Actually, this one could be unexpected numerical noise from the code I
> added in with John Voight's code. Jaap, could you post this doctest
> failure, too?
>
Sorry I missed this message. See
mabshoff wrote:
>
>>> The patch at
>>> http://trac.sagemath.org/sage_trac/attachment/ticket/1963/Sage-2.10.2...
>>> fixes the import error.
>
> Hi Jaap
>
>> After applying the patch I got on Fedora 7 32 bits:
>> --
>> The follo
On Feb 16, 6:44 am, Nick Alexander <[EMAIL PROTECTED]> wrote:
> The new dependency caching code breaks when SAGE_ROOT is a symlink.
> Easy fix: don't have SAGE_ROOT be a symlink. But symlink's are
> convenient...
>
> The issue is in module_path, which doesn't recognize that SAGE_ROOT
> and the
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