Dear Sage team,
sorry, i have a follow up question:
sage: F=FractionField(PolynomialRing(QQ,'A'))
sage: R=PolynomialRing(F,'x0,x1,x2,x3')
sage: x0=R.gen(0);x1=R.gen(1);x2=R.gen(2);x3=R.gen(3)
sage: A=F('A')
sage: I=R.ideal((-1)*x0^2 + (-1)*x1*x2 + 1, (-1)*x0*x2 + (-1)*x2*x3,
(-1)*x0*x1 + (-1)*x1
Dear John,
On Feb 13, 1:17 pm, "John Cremona" <[EMAIL PROTECTED]> wrote:
> I would say
> F=FractionField(PolynomialRing(QQ,'A'))
> A-F.gen()
> and then
> 1/A
> F(1/A)
> are all fine.
My main question was how to do 1/A in a polynomial ring over F (not
over F itself), but in fact your suggestion w
Your problem is too many quotes! You are giving strings to F().
I would say
F=FractionField(PolynomialRing(QQ,'A'))
A-F.gen()
and then
1/A
F(1/A)
are all fine.
John
On 13/02/2008, Simon King <[EMAIL PROTECTED]> wrote:
>
> Dear Sage team,
>
> i tried the following:
> sage: F=FractionField(Po
