Hi Mikie,

On Thu, Jun 18, 2009 at 1:17 AM, William Stein<[email protected]> wrote:
>
> On Wed, Jun 17, 2009 at 5:14 PM, Mikie<[email protected]> wrote:
>>
>> I taking a string from a form.  How do I convert it to polynomial type?
>
> sage: R.<x> = ZZ[]
> sage: R
> Univariate Polynomial Ring in x over Integer Ring
> sage: R(s)
> x^3 + 3*x - 2

Or something like the following:

sage: s = "x^3 + 3*x - 2"; type(s)
<type 'str'>
sage: R.<x> = ZZ["x"]; R
Univariate Polynomial Ring in x over Integer Ring
sage: R(s)
x^3 + 3*x - 2

-- 
Regards
Minh Van Nguyen

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