On 9/26/07, David Stahl <[EMAIL PROTECTED]> wrote:
>
> I am trying to determine whether the coefficient of a particular
> variable is equal to zero. I am using SAGE 2.8 in Win2000 using the
> SAGE Notebook. My working example is below including the output.
> Thank you.
Thanks. In the context
I am trying to determine whether the coefficient of a particular
variable is equal to zero. I am using SAGE 2.8 in Win2000 using the
SAGE Notebook. My working example is below including the output.
Thank you.
David
R1 = PolynomialRing(RationalField(),4, ["x4","x3","x2","x1"], "lex")
x4,x3,x2
2007/9/26, David Stahl <[EMAIL PROTECTED]>:
>
> I am trying to find what variables have zero as a coefficient and have
> been unsuccessful. Here is what I tried:
>
> I2=I.groebner_basis()
> f=SR(I2[0])
> g=f.coeff()
> print g
> 0
At first glance, g=='0' asks whether g is equal to 0 as a *s
On 9/26/07, David Stahl <[EMAIL PROTECTED]> wrote:
> I am trying to find what variables have zero as a coefficient and have
> been unsuccessful. Here is what I tried:
>
> I2=I.groebner_basis()
> f=SR(I2[0])
> g=f.coeff()
> print g
> 0
> print g=='0'
> False
>
> groebner_basis(), SR(), a
