I have the following
R.<a> = InfinitePolynomialRing(QQ)
b = a[3]    # 3 or any arbitrary non-negative integer
Is there a function that takes b as the input and gives the 3 back?
|   | 1 |  initial version  | 
I have the following
R.<a> = InfinitePolynomialRing(QQ)
b = a[3]    # 3 or any arbitrary non-negative integer
Is there a function that takes b as the input and gives the 3 back?
 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.
 
                
                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.