# determine u(R[ x] )?

determine u(R[ x] )?

0

Are you wanting to find the unit group of an arbitrary polynomial ring? That is more of a mathematical question than a Sage question. If R is commutative then the units in R[X] are the polynomials with unit constant coefficient and all other coefficients nilpotent (exercise), so if R is an integral domain you just get the constant units.

What exactly would you expect from Sage here?

If your question is different, please explain more carefully!

Asked: **
2013-11-24 11:42:52 -0500
**

Seen: **458 times**

Last updated: **Dec 13 '13**

Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.

What is u, what is R, and what is x?