Hello,
On Wed, Jun 17, 2009 at 9:13 AM, Mikie<[email protected]> wrote:
>
> I cannot use R.<x> the period. The python code is in a script. I am
> taking the string from a form and want to convert to a polynomial then
> factor the expression. This is from my Twisted API.
Here is the exact Python code that the R.<x> notation gets translated into:
sage: preparse('R.<x> = QQ[]')
"R = QQ['x']; (x,) = R._first_ngens(1)"
So, for this example, one (cleaner) way of doing the exact same thing is
R = QQ['x']
x = R.gen()
The R.<x> just saves you from having to type the variable name twice.
--Mike
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