...and I have given it a positive review. If only life were always
this easy. Thanks!
John
On 17/02/2008, Carl Witty <[EMAIL PROTECTED]> wrote:
>
> On Feb 17, 10:18 am, "John Cremona" <[EMAIL PROTECTED]> wrote:
> > Thanks, Carl -- I had been thinking that in Magma I would have done
> > just th
On Feb 17, 10:18 am, "John Cremona" <[EMAIL PROTECTED]> wrote:
> Thanks, Carl -- I had been thinking that in Magma I would have done
> just this using its AlgebraicallyClosedField, but did not realise that
> we had this in Sage too. Now I'll go and look at what it has
>
> OK, so the first thi
Thanks, Carl -- I had been thinking that in Magma I would have done
just this using its AlgebraicallyClosedField, but did not realise that
we had this in Sage too. Now I'll go and look at what it has
OK, so the first thing I tried (sorry) caused a crash. I'll file a
ticket for this: #2194
On Feb 16, 11:55 am, Jason Grout <[EMAIL PROTECTED]> wrote:
> What I'm trying to do is get a number field that has all the roots of a
> (not necessarily irreducible) polynomial.
There is code to do this embedded in qqbar.py.
sage: x = polygen(QQ)
sage: b = (x^2-2)*(x^2-3)
sage: rts = b.roots(rin
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
