Talk:Polynomial arithmetic

S is never defined...
"These operations are defined naturally as if the variable x was an element of S."

This is one of the first sentences. What is somebody to think if they don't know what S is! —Preceding unsigned comment added by 70.91.166.181 (talk) 14:50, 24 May 2011 (UTC)

Formula for c in multiplication
Is there any reason why the formula for calculating a particular c when multiplying polynomials is subscripted with k instead of i? 174.102.21.5 (talk) 04:54, 30 November 2013 (UTC)