2018-03-06 15:35:05 -0500 received badge ● Famous Question (source) 2017-01-06 06:47:25 -0500 received badge ● Notable Question (source) 2016-06-17 06:47:13 -0500 received badge ● Popular Question (source) 2014-11-19 11:02:41 -0500 received badge ● Student (source) 2014-11-18 11:06:37 -0500 commented answer Get coefficients of a polynomial in quotient ring Thanks alot! This helped 2014-11-18 08:09:57 -0500 received badge ● Scholar (source) 2014-11-18 06:05:06 -0500 received badge ● Editor (source) 2014-11-18 06:04:35 -0500 asked a question Get coefficients of a polynomial in quotient ring Let say I have the following quotient ring: F. = PolynomialRing(GF(2), 'x').quotient(x^128 + x^7 + x^2 + x + 1);  Then I create a polynomial, for example t^128 which yields: t^7 + t^2 + t + 1  Now how do I obtain the array of coefficients of this polynomial? Or, similarly, how do I actually substitute 2 for t and evaluate this polynomial? The subs method doesn't work. (Probably the polynomial needs to be coerced to other ring with base field where 2 != 0).